Plastic extruder water cooling mechanism

Abstract

The application relates to the field of light projectors, and discloses a water cooling mechanism of a plastic extruder, which comprises a cooling box, the cooling box comprises a box body and a liquid distribution assembly, and the inner top surface of the box body is fixedly provided with the liquid distribution assembly. The cooling water with a raised temperature after use is guided to the inner side of the cooling box through the liquid inlet assembly, so that the cooling water is accumulated in the inner side of the liquid storage frame; when the accumulated liquid level is higher than the liquid guide hole on the liquid storage frame, the cooling water enters the inner side of the liquid discharge frame through the liquid guide hole, flows out through the liquid discharge hole on the liquid discharge frame, and the multiple liquid discharge holes are arranged, so that the high-temperature cooling water guided to the inner side of the cooling box is branched into small water lines and flows to the bottom of the cooling box; meanwhile, the fan of the cooling assembly arranged on the cooling box is started, so that the fan blows and cools the multiple small water lines; the contact area of the cooling liquid and the cooling air is increased through the branching, so that the cooling efficiency of the cooling water during the circulation is improved, and the cooling effect is improved.

Description

Technical Field

[0001] This application relates to the field of plastic extruders, and more particularly to a water-cooling mechanism for plastic extruders. Background Technology

[0002] The main component of a plastic extruder is the extruder itself, which consists of an extrusion system, a transmission system, and a heating and cooling system. The extrusion method of a plastic extruder generally involves melting the plastic at a high temperature of around 200 degrees Celsius, and then shaping the molten plastic as it passes through a die to achieve the desired form.

[0003] Currently, when plastics are formed inside a mold, the mold usually needs to be cooled to speed up the molding process. The most common cooling method is water cooling, which involves pumping cooling water to the outside of the mold and then cooling the mold through heat conduction. However, when cooling the mold of a plastic extruder with cooling water, the water is constantly being flushed, resulting in a large water consumption. Some equipment circulates the cooled water through a pump and then recirculates it to the mold of the plastic extruder for cooling. When the cooling water is circulated multiple times, its temperature rises, which can easily lead to a decrease in cooling effect.

[0004] Chinese utility model patent CN210453696U discloses an energy-saving water-cooling system for a plastic extruder. The system includes a plastic extruder body, a circulation tank fixedly connected to the right side of the extruder body, a cooling tank fixedly connected to the bottom of the circulation tank's inner cavity, and a rear side of the cooling tank fixedly connected to the plastic extruder body. Four fixing mechanisms are provided on the front surface of the plastic extruder body, and mounting plates are fixedly connected to the surfaces of these mechanisms. This system conducts heat from the plastic extruder body to a heat-conducting mechanism, allowing water from the water tank's inner cavity to enter the cooling tank's inner cavity via a water pump to cool the heat-conducting mechanism. The cooled water then flows back to the water tank's inner cavity via a second water pump and a return pipe for air cooling, thus achieving a good cooling effect. This energy-saving water-cooling system for plastic extruders has the advantage of good cooling effect and realizes water circulation cooling.

[0005] Regarding the aforementioned technologies, the inventors believe that when the cooling water after cooling the mold is directed to the inside of the cooling box for air cooling, the heated cooling water is concentrated in one place, and the air cooling can only blow on its surface, resulting in limited air cooling effect on the cooling water. Furthermore, the circulating pump will quickly discharge the cooling water again for cooling, resulting in poor actual cooling effect.

[0006] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0007] To address the issue of poor cooling effect of existing plastic extruder mold water cooling structures on circulating water during use, this application provides a plastic extruder water cooling mechanism with good cooling effect and high efficiency.

[0008] This application provides a technical solution using the following approach:

[0009] A water-cooled cooling mechanism for a plastic extruder includes a cooling box, which comprises a box body and a liquid distribution assembly. The liquid distribution assembly is fixedly installed on the inner top surface of the box body. The liquid distribution assembly includes a liquid storage frame, which is fixedly installed on the inner top surface of the box body. The liquid storage frame has symmetrically arranged liquid guiding holes on its two side walls. A liquid drain frame is fixedly installed on the outer side of the liquid storage frame. The liquid drain frame has multiple liquid distribution holes in the middle of its bottom surface. A liquid inlet assembly is movably engaged above the liquid storage frame. A cooling assembly is fixedly installed on one side wall of the box body.

[0010] Preferably, a mounting groove is provided in the middle of the top surface of the box, a limiting groove is provided on the inner wall of the mounting groove, one end of the liquid inlet assembly is movably engaged with the inner side of the mounting groove, and an exhaust hole is provided at the edge of the top surface of the box.

[0011] Preferably, a liquid guide plate is fixedly provided in the middle of one side inner wall of the box.

[0012] Preferably, the liquid inlet assembly includes a docking plate and a transfer pipe. The docking plate is movably snapped into the inner side of the mounting groove, and the transfer pipe is provided through the docking plate. One end of the transfer pipe is connected through to an external plastic extruder.

[0013] Preferably, a limiting strip is fixedly provided on the side wall of the docking plate, and the limiting strip is movably engaged with the inner side of the limiting groove.

[0014] Preferably, the cooling assembly includes a fixed cylinder, a support frame, and a fan. The fixed cylinder is fixed to the side wall of the housing, the support frame is fixedly provided on the inner side of the fixed cylinder, and the fan is fixedly provided on the support frame.

[0015] Preferably, a liquid guide pipe is provided through the bottom of the side wall of the box, and a suction pipe is provided through the inner side of the liquid guide pipe, with one end of the suction pipe being connected through to an external plastic extruder.

[0016] In summary, this application includes the following beneficial technical effects:

[0017] The cooling chamber is equipped with a liquid distribution component and a cooling component. The liquid distribution component consists of a storage frame and a drain frame. Above the liquid distribution component, a liquid inlet component connects to the mold cooling water of the plastic extruder. The heated cooling water is guided through the liquid inlet component to the inside of the cooling chamber, where it accumulates in the storage frame. When the accumulated liquid level is higher than the guide holes on the storage frame, the cooling water enters the drain frame through the guide holes and flows out through the drain holes on the drain frame. Multiple drains are then installed. The liquid inlet allows the high-temperature cooling water, guided to the inside of the cooling chamber, to flow into fine water lines towards the bottom of the chamber. Simultaneously, the fan of the cooling component installed on the cooling chamber is activated, causing the fan to blow air onto multiple fine water lines for cooling. By splitting the flow, the contact area between the coolant and the cooling air is increased, thereby improving the cooling efficiency and cooling effect when the cooling water is recycled. Subsequently, the cooled water is guided back to the mold of the plastic extruder for cooling through suction pipes and external water pumps, thus recycling the water and reducing waste. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the application;

[0019] Figure 2 This is a perspective sectional view of an embodiment of the application;

[0020] Figure 3 This is an example of the application. Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is an example of the application. Figure 2 Enlarged diagram of point B in the middle.

[0022] Explanation of reference numerals in the attached drawings: 1. Cooling chamber; 11. Chamber body; 111. Mounting groove; 112. Limiting groove; 113. Exhaust port; 114. Liquid guide pipe; 12. Liquid distribution assembly; 121. Liquid storage frame; 122. Liquid guide hole; 123. Liquid drain frame; 124. Liquid distribution hole; 13. Liquid guide plate; 2. Liquid inlet assembly; 21. Connecting plate; 211. Limiting strip; 22. Transfer pipe; 3. Cooling assembly; 31. Fixing cylinder; 32. Support frame; 33. Fan; 4. Suction pipe. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0024] This application discloses a water-cooling mechanism for a plastic extruder. (Refer to...) Figure 2 , Figure 3 and Figure 4As shown, specifically, a water-cooling mechanism for a plastic extruder includes a cooling box 1, which comprises a box body 11 and a liquid distribution assembly 12. The liquid distribution assembly 12 is fixedly installed on the inner top surface of the box body 11, and a liquid guide plate 13 is fixedly installed in the middle of one inner wall of the box body 11 to guide the liquid flow. The liquid distribution assembly 12 includes a liquid storage frame 121, which is fixed to the inner top surface of the box body 11. Symmetrical liquid guide holes 122 are opened on both side walls of the liquid storage frame 121 to smoothly discharge the liquid. Multiple liquid guide holes 122 are provided. A drain frame 123 is fixedly installed on the outer side of the liquid storage frame 121. Multiple liquid distribution holes 124 are opened in the middle of the bottom surface of the drain frame 123 to divide the cooling water into multiple fine water lines. A liquid inlet assembly 2 is movably engaged above the liquid storage frame 121. A cooling assembly 3 is fixedly installed on one side wall of the box body 11. The 3 includes a fixed cylinder 31, a support frame 32, and a fan 33. The fixed cylinder 31 is fixed to the side wall of the housing 11. The support frame 32 is fixed to the inside of the fixed cylinder 31, and the fan 33 is fixed to the support frame 32. A liquid guide pipe 114 is connected through the bottom of the side wall of the housing 11. A suction pipe 4 is connected through the inside of the liquid guide pipe 114. One end of the suction pipe 4 is connected through the external plastic extruder. In this solution, the high-temperature coolant after the plastic extruder is used is guided to the inside of the cooling box 1 through the liquid inlet component 2. The cooling water is divided into small water lines by the liquid storage frame 121 and the liquid outlet frame 123. When the cooling water falls, the fan 33 is started to blow it to cool it down, thereby increasing the contact area between the cooling water and the air blown by the fan 33, improving the cooling efficiency and effect, and avoiding the situation where the cooling water is recycled and the cooling effect is limited when the plastic extruder uses the cooling water to cool the mold.

[0025] Reference Figure 2 and Figure 3 As shown, specifically, a mounting groove 111 is provided in the middle of the top surface of the box 11, and a limiting groove 112 is provided on the inner wall of the mounting groove 111. One end of the liquid inlet assembly 2 is movably snapped into the inner side of the mounting groove 111. An exhaust hole 113 is provided on the edge of the top surface of the box 11 for discharging hot air. The liquid inlet assembly 2 includes a docking plate 21 and a transmission pipe 22. The docking plate 21 is movably snapped into the inner side of the mounting groove 111, and the transmission pipe 22 is connected through the docking plate 21. One end of the transmission pipe 22 is connected through the external plastic extruder. A limiting strip 211 is fixed on the side wall of the docking plate 21, and the limiting strip 211 is movably snapped into the inner side of the limiting groove 112. In this solution, the liquid inlet assembly 2 is installed on the cooling box 1 by snapping. When the equipment is stopped and the liquid inside the liquid dispensing assembly 12 needs to be discharged, the liquid inlet assembly 2 can be easily disassembled for operation.

[0026] The implementation principle of one embodiment of this application is as follows: When using cooling water to cool the mold of the plastic extruder, the cooled water that has been heated after cooling is guided to the inside of the cooling box 1 through the transmission pipe 22, so that the cooling water is collected inside the liquid storage frame 121. When the liquid level reaches a certain level, it enters the inside of the drain frame 123 through the liquid guide hole 122. The falling cooling water is divided into multiple fine water lines through the liquid distribution hole 124. At the same time, the fan 33 is started by the external power supply, so that the fan 33 drives the air force to blow the fine water lines to cool them down, thereby improving the cooling efficiency of the cooling water. Then, the cooled water is pumped back to the mold of the plastic extruder for cooling by the external water pump and the suction pipe 4.

[0027] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0028] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0029] In conclusion, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water-cooled cooling mechanism for a plastic extruder, comprising a cooling box (1), characterized in that: The cooling box (1) includes a box body (11) and a liquid distribution assembly (12). The liquid distribution assembly (12) is fixedly provided on the inner top surface of the box body (11). The liquid distribution assembly (12) includes a liquid storage frame (121). The liquid storage frame (121) is fixed on the inner top surface of the box body (11). The liquid guiding holes (122) are symmetrically opened on the two side walls of the liquid storage frame (121). The liquid drain frame (123) is fixedly provided on the outer side of the liquid storage frame (121). Multiple liquid distribution holes (124) are opened in the middle of the bottom surface of the liquid drain frame (123). The liquid inlet assembly (2) is movably engaged above the liquid storage frame (121). The cooling assembly (3) is fixedly provided on one side wall of the box body (11).

2. The water-cooling mechanism for a plastic extruder according to claim 1, characterized in that: The top surface of the housing (11) has an installation groove (111) in the middle, and a limit groove (112) is provided on the inner wall of the installation groove (111). One end of the liquid inlet assembly (2) is movably engaged with the inner side of the installation groove (111), and an exhaust hole (113) is provided on the edge of the top surface of the housing (11).

3. The water-cooling mechanism for a plastic extruder according to claim 2, characterized in that: A liquid guide plate (13) is fixedly provided in the middle of one side inner wall of the box (11).

4. The water-cooling mechanism for a plastic extruder according to claim 3, characterized in that: The liquid inlet assembly (2) includes a docking plate (21) and a transmission pipe (22). The docking plate (21) is movably snapped into the inner side of the mounting groove (111). The transmission pipe (22) is connected through the docking plate (21), and one end of the transmission pipe (22) is connected through to an external plastic extruder.

5. The water-cooling mechanism for a plastic extruder according to claim 4, characterized in that: A limiting strip (211) is fixedly provided on the side wall of the docking plate (21), and the limiting strip (211) is movably engaged with the inner side of the limiting groove (112).

6. The water-cooling mechanism for a plastic extruder according to claim 5, characterized in that: The cooling assembly (3) includes a fixed cylinder (31), a support frame (32) and a fan (33). The fixed cylinder (31) is fixed on the side wall of the housing (11). The support frame (32) is fixedly provided on the inner side of the fixed cylinder (31). The fan (33) is fixedly provided on the support frame (32).

7. The water-cooling mechanism for a plastic extruder according to claim 6, characterized in that: A liquid guide pipe (114) is provided through the bottom of the side wall of the box (11), and a suction pipe (4) is provided through the inner side of the liquid guide pipe (114). One end of the suction pipe (4) is connected through to an external plastic extruder.

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