Cooling device of plastic extruder

Abstract

The utility model discloses a cooling device of a plastic extruder, which belongs to the technical field of plastic extruders and comprises a bottom plate, a vertical column is fixedly connected to the top surface of the bottom plate, a cooling box is fixedly connected to the top end of the vertical column, a slope cooling tank is arranged at one end of the cooling box, and a water removal chamber is arranged at the other end of the cooling box. And a water removal mechanism is arranged at the top of the cooling box. According to the plastic extrusion line cooling device, water in the lower water storage chamber is pumped into the water outlet pipe through the water pump, the water in the water outlet pipe falls into the slope cooling groove from the water outlet groove, cooling water in the slope cooling groove flows downwards, and the flowing water makes contact with the plastic extrusion line moving in the reverse direction, so that the plastic extrusion line is continuously cooled; and meanwhile, a first switch valve is matched for blowing air to the plastic extrusion line, residual water on the plastic extrusion line is removed, the plastic extrusion line is cooled again, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic extruders, and more specifically to a cooling device for a plastic extruder. Background Art

[0002] Plastic extruder is a plastic extrusion molding equipment. In plastic extrusion production, the material is generally melted first, and then the molten material is extruded and molded through the extruder. However, the temperature of the extruded plastic is very high and needs to be cooled and shaped before entering the next processing step.

[0003] After searching, the utility model patent with announcement number CN209492152U discloses a cooling device for a plastic extruder. Aiming at the problem that the existing plastic extruder cooling device is cumbersome to operate, the following scheme is proposed, which includes a cooling box and a water circulation box, one end of the cooling box is fixed with a feed pipe, the interior of the cooling box is rotatably connected with a plurality of rollers, mounting plates are fixed on the top inner wall and the bottom inner wall of the cooling box, brushes are fixed on the ends close to the two mounting plates, upper baffles and lower baffles are respectively fixed on the top inner wall and the bottom inner wall of the cooling box, a plurality of water outlet holes are opened at the bottom of the lower baffle, and a hair dryer is fixed on the top of the cooling box; the patent has a reasonable structure, ingenious design, and simple operation, and solves the problem that the plastic extruder cooling device in the prior art is cumbersome to operate, and can not only quickly cool the extruded plastic, but also has a small water consumption and a good drying effect of the extruded plastic.

[0004] However, the above patent still has the following shortcomings: when cooling the molded plastic by spraying, the cooling water will first take away the external heat of the molded plastic, which is not convenient for ensuring that the plastic is completely cooled; and the water in the water circulation box is easily heated by the refluxed water with a certain temperature, affecting the subsequent cooling effect. For this reason, we propose a cooling device for a plastic extruder. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model aims to provide a cooling device for a plastic extruder.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A cooling device for a plastic extruder comprises a bottom plate, a column is fixedly connected to the top surface of the bottom plate, a cooling box is fixedly connected to the top of the column, a slope cooling groove is arranged at one end of the cooling box, a dewatering chamber is arranged at the other end of the cooling box, a dewatering mechanism is arranged at the top of the cooling box, a water tank is arranged at the top surface of the bottom plate, an upper water storage chamber, a cooling chamber and a lower water storage chamber are arranged inside the water tank, a first drain valve is fixedly sleeved at the bottom of the cooling box, the bottom end of the first drain valve extends to the inner cavity of the upper water storage chamber, an upper water guide pipe is fixedly connected between the upper water storage chamber and the cooling chamber, A first switch valve is arranged in the middle of the upper water pipe, a lower water pipe is fixedly connected between the cooling chamber and the lower water storage chamber, a second switch valve is arranged in the middle of the lower water pipe, a water pump is fixedly installed on the side of the water tank, the input end of the water pump extends to the inner cavity of the lower water storage chamber, the output end of the water pump is fixedly connected to a water pumping pipe, the end of the water pumping pipe extends to the top of the cooling box and is fixedly connected to a water outlet pipe, a water outlet groove is arranged on the bottom surface of the water outlet pipe, a semiconductor refrigeration plate is fixedly sleeved on the front of the water tank and located on the outside of the cooling chamber, and the cooling surface of the semiconductor refrigeration plate extends to the inner cavity of the cooling chamber.

[0008] As a preferred solution of the utility model, the dewatering mechanism includes a mounting frame fixedly connected to the top of the dewatering chamber, and a hair dryer is fixedly mounted on the mounting frame.

[0009] As a preferred solution of the utility model, a first temperature sensor is fixedly installed on the inner wall of the cooling chamber, and a second temperature sensor is fixedly installed on the inner wall of the lower water storage chamber.

[0010] As a preferred solution of the utility model, a feed pipe is fixedly sleeved on one end of the bottom plate, and a discharge pipe is fixedly sleeved on the other end of the bottom plate.

[0011] As a preferred solution of the utility model, the inner cavity of the slope cooling groove is rotatably connected to a plurality of supporting rollers.

[0012] As a preferred solution of the present invention, a control panel is fixedly installed on the front of the cooling box.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In the utility model, a water pump is used to pump water in the lower water storage chamber into the water outlet pipe, and the water in the water outlet pipe is made to fall from the water outlet trough into the slope cooling trough. The cooling water in the slope cooling trough flows downward, and the flowing water is used to contact the plastic extrusion line moving in the opposite direction, so as to continuously cool the plastic extrusion line. At the same time, the first switch valve is used to blow air to the plastic extrusion line, so as to clean the residual water on the plastic extrusion line and cool the plastic extrusion line again.

[0015] (2) In the utility model, the cooled water in the slope cooling trough enters the upper water storage chamber from the first drain valve and is stored therein, and the waste water in the upper water storage chamber is quantitatively introduced into the cooling chamber through the upper water conduit, and the water in the cooling chamber is cooled by a semiconductor refrigeration sheet, and the water cooled to a suitable temperature is introduced from the lower water conduit into the lower water storage chamber to cool the plastic extrusion line. The coordinated use of the upper water storage chamber, the cooling chamber and the lower water storage chamber ensures that the temperature of the cooling water is maintained within a certain range, and the utility model has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is an exploded view of the overall structure of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the cooling box of the utility model;

[0019] Figure 4 It is a cross-sectional schematic diagram of the water tank of the utility model.

[0020] Description of the numbers in the figure:

[0021] 1. Bottom plate; 2. Column; 3. Cooling box; 4. Sloped cooling trough; 5. Dewatering chamber; 6. Dewatering mechanism; 7. Water tank; 8. First drain valve; 9. Upper water storage chamber; 10. Cooling chamber; 11. Lower water storage chamber; 12. Water pump; 13. Suction pipe; 14. Water outlet pipe; 15. Water outlet trough; 16. Upper water pipe; 17. First switch valve; 18. Lower water pipe; 19. Second switch valve; 20. First temperature sensor; 21. Second temperature sensor; 22. Support roller; 23. Feed pipe; 24. Discharge pipe; 25. Semiconductor refrigeration sheet; 26. Mounting frame; 27. Hair dryer; 28. Control panel. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Example:

[0026] See also Figure 1-4 A cooling device for a plastic extruder comprises a bottom plate 1, a column 2 is fixedly connected to the top surface of the bottom plate 1, a cooling box 3 is fixedly connected to the top of the column 2, a slope cooling groove 4 is arranged at one end of the cooling box 3, a dewatering chamber 5 is arranged at the other end of the cooling box 3, a dewatering mechanism 6 is arranged at the top of the cooling box 3, a water tank 7 is arranged on the top surface of the bottom plate 1, an upper water storage chamber 9, a cooling chamber 10 and a lower water storage chamber 11 are arranged inside the water tank 7, a first drain valve 8 is fixedly sleeved at the bottom of the cooling box 3, the bottom end of the first drain valve 8 extends to the inner cavity of the upper water storage chamber 9, an upper water pipe 16 is fixedly connected between the upper water storage chamber 9 and the cooling chamber 10, and the middle of the upper water pipe 16 A first switch valve 17 is provided in the part, a lower water pipe 18 is fixedly connected between the cooling chamber 10 and the lower water storage chamber 11, a second switch valve 19 is provided in the middle of the lower water pipe 18, a water pump 12 is fixedly installed on the side of the water tank 7, the input end of the water pump 12 extends to the inner cavity of the lower water storage chamber 11, the output end of the water pump 12 is fixedly connected to a water pumping pipe 13, the end of the water pumping pipe 13 extends to the top of the cooling box 3 and is fixedly connected to a water outlet pipe 14, a water outlet trough 15 is provided on the bottom surface of the water outlet pipe 14, a semiconductor refrigeration plate 25 is fixedly mounted on the front side of the water tank 7 and located on the outside of the cooling chamber 10, and the cooling surface of the semiconductor refrigeration plate 25 extends to the inner cavity of the cooling chamber 10.

[0027] For details, please refer to Figure 1 and Figure 2The dewatering mechanism 6 includes a mounting frame 26 fixedly connected to the top of the dewatering chamber 5 , and a hair dryer 27 is fixedly mounted on the mounting frame 26 .

[0028] In this embodiment, the blower 27 is used to blow air toward the plastic line passing through the dewatering chamber 5 so as to cool the plastic line and clean the water on the molded plastic line.

[0029] For details, please refer to Figure 4 A first temperature sensor 20 is fixedly installed on the inner wall of the cooling chamber 10 , and a second temperature sensor 21 is fixedly installed on the inner wall of the lower water storage chamber 11 .

[0030] In this embodiment, the first temperature sensor 20 is used to detect the water temperature in the cooling chamber 10 , and the second temperature sensor 21 is used to detect the water temperature in the lower water storage chamber 11 .

[0031] For details, please refer to Figure 1 and Figure 2 A feed pipe 23 is fixedly sleeved on one end of the bottom plate 1 , and a discharge pipe 24 is fixedly sleeved on the other end of the bottom plate 1 .

[0032] In this embodiment, the extruded plastic strands are introduced into the inner cavity of the slope cooling trough 4 through the feed pipe 23 , and the extruded plastic strands are led out through the discharge pipe 24 .

[0033] For details, please refer to Figure 1 The inner cavity of the slope cooling groove 4 is rotatably connected to a plurality of supporting rollers 22 .

[0034] In this embodiment, the support roller 22 is used to support the extruded plastic wire.

[0035] For details, please refer to Figure 1 A control panel 28 is fixedly mounted on the front of the cooling box 3 .

[0036] In this embodiment, the control panel 28 is used to control the device.

[0037] Working principle: When in use, first extend the plastic extrusion line extruded from the plastic extruder from the feed pipe 23 into the slope cooling groove 4, and make the plastic extrusion line pass through the discharge pipe 24, then start the water pump 12 to pump the cooling water in the lower water storage chamber 11 into the outlet pipe 14, and make the water in the outlet pipe 14 fall from the outlet groove 15 into the slope cooling groove 4, so that the water in the slope cooling groove 4 moves downward, so that the cooling water and the plastic extrusion line are in contact for a long time, and the flowing water can ensure the cooling effect of the plastic extrusion line. In addition, the cooled plastic extrusion line enters the dewatering chamber 5, and the hair dryer 27 is used to blow air to the plastic extrusion line, so that the water on the plastic extrusion line falls, and the wind can cool the plastic extrusion line again, and then after cooling. The waste water enters the upper water storage chamber 9 from the first drain valve 8, so that the waste water enters the upper water storage chamber 9 and is stored, and the first switch valve 17 is opened to allow the water in the upper water storage chamber 9 to enter the cooling chamber 10, and the semiconductor refrigeration sheet 25 is used to cool the water in the cooling chamber 10, and the first temperature sensor 20 is used to detect the water temperature in the cooling chamber 10. When the water in the cooling chamber 10 is reduced to the required temperature, the lower water pipe 18 is opened to allow the water in the cooling chamber 10 to enter the lower water storage chamber 11, and after the water in the cooling chamber 10 is discharged, the first switch valve 17 is started again to allow the water in the upper water storage chamber 9 to enter the cooling chamber 10. The water is refrigerated in this cycle, thereby continuously and efficiently cooling the plastic line extruded by the plastic extruder.

[0038] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A cooling device for a plastic extruder, comprising a bottom plate (1), characterized in that: The top surface of the bottom plate (1) is fixedly connected to a column (2), the top of the column (2) is fixedly connected to a cooling box (3), one end of the cooling box (3) is provided with a slope cooling groove (4), the other end of the cooling box (3) is provided with a dewatering chamber (5), the top of the cooling box (3) is provided with a dewatering mechanism (6), the top surface of the bottom plate (1) is provided with a water tank (7), the interior of the water tank (7) is respectively provided with an upper water storage chamber (9), a cooling chamber (10) and a lower water storage chamber (11), the bottom of the cooling box (3) is fixedly sleeved with a first drain valve (8), the bottom end of the first drain valve (8) extends to the inner cavity of the upper water storage chamber (9), an upper water pipe (16) is fixedly connected between the upper water storage chamber (9) and the cooling chamber (10), the middle part of the upper water pipe (16) is provided with a first A switch valve (17), a lower water pipe (18) is fixedly connected between the cooling chamber (10) and the lower water storage chamber (11), a second switch valve (19) is arranged in the middle of the lower water pipe (18), a water pump (12) is fixedly installed on the side of the water tank (7), the input end of the water pump (12) extends to the inner cavity of the lower water storage chamber (11), the output end of the water pump (12) is fixedly connected to a water pump (13), the end of the water pump (13) extends to the top of the cooling chamber (3) and is fixedly connected to a water outlet pipe (14), the bottom surface of the water outlet pipe (14) is provided with a water outlet groove (15), the front of the water tank (7) and located outside the cooling chamber (10) is fixedly sleeved with a semiconductor refrigeration plate (25), the cooling surface of the semiconductor refrigeration plate (25) extends to the inner cavity of the cooling chamber (10).

2. A cooling device for a plastic extruder according to claim 1, characterized in that: The dewatering mechanism (6) comprises a mounting frame (26) fixedly connected to the top of the dewatering chamber (5), and a blower (27) is fixedly mounted on the mounting frame (26).

3. A cooling device for a plastic extruder according to claim 1, characterized in that: A first temperature sensor (20) is fixedly mounted on the inner wall of the cooling chamber (10), and a second temperature sensor (21) is fixedly mounted on the inner wall of the lower water storage chamber (11).

4. A cooling device for a plastic extruder according to claim 1, characterized in that: A feed pipe (23) is fixedly sleeved on one end of the bottom plate (1), and a discharge pipe (24) is fixedly sleeved on the other end of the bottom plate (1).

5. A cooling device for a plastic extruder according to claim 1, characterized in that: The inner cavity of the slope cooling groove (4) is rotatably connected to a plurality of supporting rollers (22).

6. A cooling device for a plastic extruder according to claim 1, characterized in that: A control panel (28) is fixedly mounted on the front of the cooling box (3).

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