Plastic part production injection molding device and injection molding method

Abstract

The plastic part production injection molding device comprises a cooling device, a first mold and a second mold and further comprises a filtering device and a water storage device, the filtering device is arranged at the output end of the cooling device, and the water storage device is arranged at the output end of the filtering device; the first mold and the second mold are arranged in the same mode, cooling water pipes are evenly arranged in the first mold, a conveying water pipe is fixedly installed at the bottom end of each cooling water pipe, a backflow water pipe is fixedly installed at the top end of each cooling water pipe, and the cooling device comprises a cooling water tank and a flow dividing mechanism. Two supporting frames are symmetrically and fixedly connected to the bottom end of the interior of the cooling water tank, the four flow dividing mechanisms are evenly and symmetrically arranged, and the flow dividing mechanisms are arranged at the top ends of the supporting frames. The filter element can be replaced without shutdown through the designed filter device, so that the continuity of injection molding production is guaranteed, and material waste caused by shutdown is reduced.

Description

Technical Field

[0001] The present invention relates to the field of plastic production, and particularly to an injection molding device and an injection molding method for plastic part production. Background Art

[0002] Injection molding production is a production process in which plastic is melted and injected into a mold for cooling and shaping. The water cooling system in injection molding processing is mainly used to control the temperature of the injection molding machine and the mold to ensure the smooth progress of the injection molding process and product quality. In the water cooling system, one or more filtering devices are required to filter the cooling water to remove impurities therein. However, the traditional filtering device needs to be shut down for filter element replacement, which disrupts the continuity of production. Therefore, there is an urgent need for an injection molding device and an injection molding method for plastic part production to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide an injection molding device and an injection molding method for plastic part production to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: An injection molding device and an injection molding method for plastic part production, including a cooling device, a first mold and a second mold, further including a filtering device and a water storage device. The filtering device is arranged at the output end of the cooling device, the water storage device is arranged at the output end of the filtering device. The first mold and the second mold are the same. Cooling water pipes are uniformly arranged inside the first mold. A conveying water pipe is fixedly installed at the bottom end of the cooling water pipe, and a return water pipe is fixedly installed at the top end of the cooling water pipe;

[0005] The cooling device includes a cooling water tank and a flow dividing mechanism. Two support frames are symmetrically and fixedly connected to the bottom end inside the cooling water tank. Four flow dividing mechanisms are uniformly and symmetrically arranged, and the flow dividing mechanisms are arranged at the top end of the support frames. The flow dividing mechanism includes a fixed frame and a water dividing tank. Plug-in slots are respectively opened at both ends of the fixed frame. Plug-in plates are slidably inserted inside the plug-in slots. A heat dissipation water curtain is fixedly installed between the two plug-in plates. The heat dissipation water curtain is movably inserted inside the fixed frame through the plug-in plates. The water dividing tank is arranged at the top end of the fixed frame. A sponge is arranged inside the water dividing tank;

[0006] The filtering device includes an upper protective shell, a lower protective shell and a runner. The upper protective shell is fixedly installed at the top end of the lower protective shell. The runner is rotatably connected inside the upper protective shell and the lower protective shell. A top cover is rotatably installed at the top end of the upper protective shell through a hinge. Connecting pipes are respectively fixedly connected to the bottom ends on both sides of the lower protective shell. Four blocking outer frames are uniformly fixedly installed at one end of the runner. Four filter elements are uniformly arranged inside the runner. A runner is fixedly installed at one end of the runner;

[0007] The water storage device includes a water storage tank. A water tank cover is fixedly installed at the top end of the water storage tank. A partition board is fixedly connected inside the water storage tank. The inside of the water storage tank is divided into a water inlet chamber and a water storage chamber by the partition board. The water inlet chamber is higher than the water storage chamber. Two water outlet pipes are fixedly installed on one side of the water storage tank away from the partition board. One end of the water outlet pipe is located at the inner bottom end of the water storage chamber. A sound and light alarm and a start switch are fixedly installed at the top end of the partition board close to the water storage chamber. The start switch is located on the side of the sound and light alarm away from the partition board. Two lifting slide rods are symmetrically and slidably connected to one side of the water tank cover close to the partition board. A hollow floating ball is fixedly installed at the bottom end of the lifting slide rod. A connecting rod is fixedly connected between the two hollow floating balls. Lifting plates are fixedly installed at the top ends of the two lifting slide rods.

[0008] Preferably, a tank cover is fixedly installed at the top end of the cooling water tank. A water pump is fixedly installed at the top end of the tank cover. A branch water pipe is fixedly installed at the output end of the water pump. Four output pipes are evenly arranged at one end of the branch water pipe away from the water pump. The middle part of the bottom end of one side of the cooling water tank is fixedly connected with an extension water tank. A air supply chamber is fixedly connected inside the cooling water tank. A plurality of heat dissipation fans are respectively fixedly installed on both sides of the air supply chamber. Blocking frames are respectively fixedly connected at both ends of the air supply chamber. A dust removal filter screen is movably inserted between the blocking frame and the inner side of the cooling water tank. Ventilation windows are respectively arranged on two opposite sides of the cooling water tank, and the positions of the ventilation windows and the dust removal filter screen match. Exhaust ports are respectively penetrated and opened at the top ends of two sides of the cooling water tank adjacent to the ventilation windows. Two diversion inclined plates are symmetrically arranged inside the cooling water tank, and the two diversion inclined plates are distributed on both sides of the air supply chamber.

[0009] Preferably, the four output pipes of the branch water pipe are respectively located at the middle parts of the tops of the four sub-water tanks.

[0010] Preferably, the input end of the water pump is fixedly installed at one end of the conveying water pipe away from the cooling water pipe. The end of the return water pipe away from the cooling water pipe is fixedly installed on the water outlet pipe. The lower protective shell is respectively fixedly installed on one side of the extension water tank away from the cooling water tank and on one side of the water storage tank close to the partition board through the two connecting pipes on both sides.

[0011] Preferably, four clamping grooves are evenly opened on the outer side of the runner. Side clamping grooves are respectively opened at both ends of the clamping grooves inside the runner. A clamping ball is evenly fixedly connected to one side inside the clamping groove. A clamping frame is movably clamped inside the clamping groove. Spherical clamping grooves are evenly opened on one side of the clamping frame close to the clamping ball, and the spherical clamping grooves match the clamping balls.

[0012] Preferably, the positions of the heat dissipation fan and the flow splitting mechanism are matched.

[0013] Preferably, the lifting plate is located directly above the start switch, and the top end of the start switch is in contact connection with the middle part of the bottom end of the lifting plate.

[0014] A method for using an injection molding device for plastic parts is as follows:

[0015] S1. First, start the water pump and the heat dissipation fan. The water pump transports the water inside the water storage tank to the branch water pipes. The branch ends of the branch water pipes uniformly discharge the water onto the water distribution tank through the sponge. Then, the water is discharged from the bottom end of the water distribution tank to the top end of the cooling water curtain. The water flows downward through the cooling water curtain. The heat dissipation fan blows the air inside the air supply chamber to the side of the cooling water curtain, and the flowing air dissipates the heat of the water flowing on the cooling water curtain. The air carrying heat flows out from the side of the cooling water curtain away from the heat dissipation fan and is discharged through the exhaust port opened at the top end of the cooling water tank. The external air enters the inside of the air supply chamber through the air permeable window, and the dust in the air is filtered by the dust removal filter screen. The water flowing downward through the cooling water curtain is cooled by the air and then flows downward into the bottom end of the cooling water tank. Then, the water enters the extension water tank, enters the filter element located at the bottom end inside the lower protective shell through the connecting pipe for filtration, and the filtered water enters the water inlet chamber and the water storage chamber, thus forming a water cycle;

[0016] S2. Since the hollow floating ball is located inside the water storage chamber, when there is water inside the water storage chamber, the hollow floating ball floats on the water surface. When there are too many impurities inside the filter element, the amount of water flowing into the water inlet chamber decreases, while the amount of water pumped out by the outlet pipe remains unchanged. As a result, the water level inside the water storage chamber continuously decreases, and the hollow floating ball follows the water level and descends. The descent of the hollow floating ball drives the lifting slide rod to move downward, and the movement of the lifting slide rod drives the lifting plate to move downward. When the bottom end of the lifting plate presses down on the start switch, the start switch activates the alarm of the sound and light alarm;

[0017] S3. The alarm reminds the staff to replace the filter element. The staff opens the top cover and then rotates the rotating wheel clockwise and stops after rotating 90 degrees. The rotation of the rotating wheel causes the new filter element located on the side to rotate to the bottom end, and the blocked filter element located at the bottom end rotates to the side, completing the replacement of the filter element.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] Through the designed filtering device of the present invention, the filter element can be replaced without stopping the machine, thereby ensuring the continuity of injection molding production and reducing the material waste caused by downtime. The water level inside the water storage tank is measured by the hollow floating ball in the water storage device. When the filter element is blocked and the water level drops, the hollow floating ball drops, driving the lifting plate to drop, and squeezing the start switch downward, thereby turning on the sound and light alarm to remind the staff to replace the filter element, so as to avoid the problem of untimely replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic perspective view of the main body of the present invention;

[0021] Figure 2 is a front view of the cooling device in the present invention;

[0022] Figure 3 is a schematic structural view of the cooling device in the present invention;

[0023] Figure 4 is a schematic sectional view of the cooling device in the present invention;

[0024] Figure 5 is a schematic exploded view of the flow splitting mechanism in the present invention;

[0025] Figure 6 is a schematic structural view of the filtering device in the present invention;

[0026] Figure 7 is a schematic structural view of the runner in the present invention;

[0027] Figure 8 is a schematic structural view of the runner in the present invention;

[0028] Figure 9 is a schematic structural view of the water storage device in the present invention;

[0029] Figure 10 is a schematic internal structural view of the water storage device in the present invention.

[0030] In the figure: 1 - cooling device, 2 - filtering device, 3 - water storage device, 4 - first mold, 5 - second mold, 6 - cooling water pipe, 7 - conveying water pipe, 8 - return water pipe, 9 - cooling water tank, 10 - tank cover, 11 - water pump, 12 - branch water pipe, 13 - extension water tank, 14 - air supply chamber, 15 - radiator fan, 16 - blocking frame, 17 - dust removal filter screen, 18 - ventilation window, 19 - exhaust port, 20 - diversion inclined plate, 21 - flow splitting mechanism, 22 - fixing frame, 23 - insertion slot, 24 - water distribution tank, 25 - sponge, 26 - heat dissipation water curtain, 27 - insertion plate, 28 - support frame, 29 - upper protective shell, 30 - lower protective shell, 31 - top cover, 32 - runner, 33 - connecting pipe, 34 - clamping slot, 35 - clamping frame, 36 - spherical clamping slot, 37 - blocking outer frame, 38 - filter element, 39 - runner, 40 - side clamping slot, 41 - clamping ball, 42 - water storage tank, 43 - water tank cover, 44 - sound and light alarm, 45 - start switch, 46 - water inlet chamber, 47 - water storage chamber, 48 - water outlet pipe, 49 - hollow floating ball, 50 - connecting rod, 51 - lifting slide rod, 52 - lifting plate, 53 - partition plate. Detailed implementation mode

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figure 1 , an embodiment provided by the present invention: an injection molding device and injection molding method for plastic parts, including a cooling device 1, a first mold 4 and a second mold 5, further including a filtering device 2 and a water storage device 3. The filtering device 2 is arranged at the output end of the cooling device 1 and is used to filter impurities in the cooling water, and can be maintained without shutting down the machine. The water storage device 3 is arranged at the output end of the filtering device 2. The first mold 4 and the second mold 5 are the same. Cooling water pipes 6 are evenly arranged inside the first mold 4. A conveying water pipe 7 is fixedly installed at the bottom end of the cooling water pipe 6, and a return water pipe 8 is fixedly installed at the top end of the cooling water pipe 6.

[0033] Please refer to Figures 2 - 5, the cooling device 1 includes a cooling water tank 9 and a flow splitting mechanism 21. A tank cover 10 is fixedly installed at the top end of the cooling water tank 9. A water pump 11 is fixedly installed at the top end of the tank cover 10. An output end of the water pump 11 is fixedly installed with a branch water pipe 12. Four output pipes are evenly arranged at one end of the branch water pipe 12 away from the water pump 11. The middle part of the bottom end on one side of the cooling water tank 9 is fixedly connected with an extension water tank 13. An air supply chamber 14 is fixedly connected inside the cooling water tank 9. A plurality of heat dissipation fans 15 are respectively fixedly installed on both sides of the air supply chamber 14. Blocking frames 16 are respectively fixedly connected at both ends of the air supply chamber 14. A dust removal filter screen 17 is movably inserted between the blocking frames 16 and the inner side of the cooling water tank 9. Ventilation windows 18 are respectively arranged on two opposite sides of the cooling water tank 9, and the positions of the ventilation windows 18 and the dust removal filter screen 17 match. External air enters the inside of the air supply chamber 14 through the ventilation windows 18, and dust in the air is filtered out when passing through the dust removal filter screen 17 to ensure the purity of the cooling water. Exhaust ports 19 are respectively formed through the top ends on both sides of the cooling water tank 9 adjacent to the ventilation windows 18. Two guide inclined plates 20 are symmetrically arranged inside the cooling water tank 9, and the two guide inclined plates 20 are distributed on both sides of the air supply chamber 14. The guide inclined plates 20 guide the air to flow upward and discharge through the exhaust ports 19. Two support frames 28 are symmetrically and fixedly connected to the bottom end inside the cooling water tank 9. The flow splitting mechanism 21 is evenly and symmetrically provided with four, and the flow splitting mechanism 21 is arranged at the top end of the support frame 28. The positions of the heat dissipation fans 15 and the flow splitting mechanism 21 match. The flow splitting mechanism 21 includes a fixed frame 22 and a water distribution tank 24. Insertion slots 23 are respectively formed at both ends of the fixed frame 22. Insertion plates 27 are slidably inserted inside the insertion slots 23. A heat dissipation water curtain 26 is fixedly installed between the two insertion plates 27. The heat dissipation water curtain 26 is movably inserted inside the fixed frame 22 through the insertion plates 27. The water distribution tank 24 is arranged at the top end of the fixed frame 22. A sponge 25 is arranged inside the water distribution tank 24. The four output pipes of the branch water pipe 12 are respectively located at the middle parts of the tops of the four water distribution tanks 24. The output pipes of the branch water pipe 12 respectively discharge the reflux cooling water to the tops of different sponges 25. The cooling water disperses part of the water flow to both ends of the water distribution tank 24 through the sponge 25, so that the water discharged from the bottom end of the water distribution tank 24 is more uniform than that discharged by a single water pipe. The water flows downward through the heat dissipation water curtain 26. At this time, the heat dissipation fans 15 push the air to flow through the gaps of the heat dissipation water curtain 26 to cool the water accordingly.

[0034] Please refer to Figures 6 - 8, the filtering device 2 includes an upper protective shell 29, a lower protective shell 30 and a rotating wheel 32. The upper protective shell 29 is fixedly installed at the top end of the lower protective shell 30. The rotating wheel 32 is rotatably connected to the inner sides of the upper protective shell 29 and the lower protective shell 30. A top cover 31 is rotatably installed at the top end of the upper protective shell 29 through a hinge, which is convenient for replacing the filter element 38. Connecting pipes 33 are respectively fixedly connected to the bottom ends of both sides of the lower protective shell 30. Four blocking outer frames 37 are uniformly and fixedly installed at one end of the rotating wheel 32. Four filter elements 38 are uniformly arranged inside the rotating wheel 32. A rotating wheel 39 is fixedly installed at one end of the rotating wheel 32. The blocking outer frame 37 is used to block the filter element 38. Four clamping grooves 34 are uniformly formed on the outer side of the rotating wheel 32. Side clamping grooves 40 are respectively formed at both ends of the clamping groove 34 inside the rotating wheel 32. A clamping ball 41 is uniformly fixedly connected to one side inside the clamping groove 34. A clamping frame 35 is movably clamped inside the clamping groove 34. Spherical clamping grooves 36 are uniformly formed on one side of the clamping frame 35 close to the clamping ball 41, and the spherical clamping grooves 36 match the clamping balls 41. The clamping frame 35 is inserted into the clamping groove 34 and is fixed by clamping the clamping ball 41 inside the spherical clamping groove 36. By rotating the rotating wheel 39 to drive the filter element 38 to rotate, the filter element 38 at the bottom end can be rotated to the side or the top end. When the blocked filter element 38 rotates to the top end, the top cover 31 is opened and the clamping frame 35 is pulled out to replace the filter element 38. The operation is simple and convenient and there is no need to stop the injection molding operation.

[0035] Please refer to Figure 9 and Figure 10, the water storage device 3 includes a water storage tank 42. A water tank cover 43 is fixedly installed at the top end of the water storage tank 42. A partition plate 53 is fixedly connected inside the water storage tank 42. The inside of the water storage tank 42 is divided into a water inlet chamber 46 and a water storage chamber 47 by the partition plate 53. The water inlet chamber 46 is higher than the water storage chamber 47. Two water outlet pipes 48 are fixedly installed on one side of the water storage tank 42 away from the partition plate 53. One end of the water outlet pipe 48 is located at the inner bottom end of the water storage chamber 47. A sound and light alarm 44 and a start switch 45 are fixedly installed at the top end of the partition plate 53 close to the water storage chamber 47. The start switch 45 is located on the side of the sound and light alarm 44 away from the partition plate 53. The sound and light alarm 44 and the start switch 45 are electrically connected by a wire. The start switch 45 is used to control the opening and closing of the sound and light alarm 44. When the start switch 45 is pressed downward, the alarm of the sound and light alarm 44 is activated. Two lifting slide rods 51 are symmetrically and slidably connected to one side of the water tank cover 43 close to the partition plate 53. A hollow floating ball 49 is fixedly installed at the bottom end of the lifting slide rod 51. A connecting rod 50 is fixedly connected between the two hollow floating balls 49. A lifting plate 52 is fixedly installed at the top ends of the two lifting slide rods 51. Since the water inside the water storage chamber 47 is flowing, the two hollow floating balls 49 are connected by the connecting rod 50, and the top ends of the two lifting slide rods 51 are connected by the lifting plate 52, so that the floating of the hollow floating ball 49 is more stable. The lifting plate 52 is located directly above the start switch 45. The top end of the start switch 45 is in contact connection with the middle part of the bottom end of the lifting plate 52.

[0036] Please refer to Figure 1 , the input end of the water pump 11 is fixedly installed at one end of the conveying water pipe 7 away from the cooling water pipe 6. One end of the return water pipe 8 away from the cooling water pipe 6 is fixedly installed on the water outlet pipe 48. The cooling water pipe 6 penetrates through the first mold 4 and the second mold 5. The first mold 4 and the second mold 5 are cooled by the cooling water flowing inside the cooling water pipe 6, so as to accelerate the cooling and shaping of the plastic part. The lower protective shell 30 is fixedly installed on one side of the extension water tank 13 away from the cooling water tank 9 and on one side of the water storage tank 42 close to the partition plate 53 through the connecting pipes 33 on both sides respectively.

[0037] The usage method of the water cooling cycle in the injection molding device is specifically as follows:

[0038] S1. First, start the water pump 11 and the radiator fan 15. The water pump 11 transports the water inside the water storage tank 42 into the branch water pipe 12. The branch end of the branch water pipe 12 evenly discharges the water through the sponge 25 into the inside of the water distribution tank 24. Then the water is discharged from the bottom end of the water distribution tank 24 to the top end of the cooling water curtain 26. The water flows downward through the cooling water curtain 26. The radiator fan 15 blows the air inside the air supply chamber 14 to the side of the cooling water curtain 26, and the flowing water on the cooling water curtain 26 is cooled by the flowing air. The air carrying heat flows out from the side of the cooling water curtain 26 away from the radiator fan 15 and is discharged through the exhaust port 19 opened at the top end of the cooling water tank 9. The external air enters the inside of the air supply chamber 14 through the ventilation window 18, and the dust in the air is filtered by the dust removal filter screen 17. The water flowing downward through the cooling water curtain 26 is cooled by the air and then flows downward into the inside bottom end of the cooling water tank 9. Then the water enters the extension water tank 13 and is filtered through the filter element 38 located at the bottom end inside the lower protective shell 30 through the connecting pipe 33. The filtered water enters the water inlet chamber 46 and the water storage chamber 47, thus forming a water cycle;

[0039] S2. Since the hollow floating ball 49 is located inside the water storage chamber 47, when there is water inside the water storage chamber 47, the hollow floating ball 49 floats on the water surface. When there are too many impurities inside the filter element 38, the amount of water flowing into the water inlet chamber 46 decreases, while the amount of water pumped out by the water outlet pipe 48 remains unchanged. As a result, the water level inside the water storage chamber 47 continuously decreases, and the hollow floating ball 49 follows the water level and descends. The descent of the hollow floating ball 49 drives the lifting slide rod 51 to move downward, and the movement of the lifting slide rod 51 drives the lifting plate 52 to move downward. When the bottom end of the lifting plate 52 presses down on the start switch 45, the start switch 45 activates the alarm of the sound and light alarm 44;

[0040] S3. The alarm reminds the staff to replace the filter element 38. The staff opens the top cover 31 and then rotates the rotating wheel 39 clockwise and stops after rotating 90 degrees. The rotation of the rotating wheel 32 causes the new filter element 38 located on the side to rotate to the bottom end, and the blocked filter element 38 located at the bottom end rotates to the side, completing the replacement of the filter element 38.

[0041] Working principle: During use, first start the water pump 11 and the radiator fan 15. Since the return water pipe 8, the cooling water pipe 6, the delivery water pipe 7, and the outlet pipe 48 are connected in sequence, the water pump 11 delivers the water inside the water storage tank 42 to the branch water pipe 12. The branch end of the branch water pipe 12 discharges the water through the sponge 25 into the inside of the sub-water tank 24. When the water passes through the sponge 25, the sponge 25 disperses the water evenly and discharges it into the inside of the sub-water tank 24. Then the water discharges from the bottom end of the sub-water tank 24 to the top end of the cooling water curtain 26. The water flows downward through the cooling water curtain 26. The radiator fan 15 blows the air inside the air supply chamber 14 to the side of the cooling water curtain 26, and the flowing water on the cooling water curtain 26 is cooled by the flowing air. The air carrying heat flows out from the side of the cooling water curtain 26 away from the radiator fan 15 and flows upward through the diversion of the diversion inclined plate 20. When the air flows to the top end inside the cooling water tank 9, the air is discharged through the exhaust port 19 opened at the top end of the cooling water tank 9. The air inside the air supply chamber 14 is blown out by the radiator fan 15, resulting in a decrease in air pressure inside the air supply chamber 14. External air enters the inside of the air supply chamber 14 through the ventilation window 18 and filters the dust in the air through the dust removal filter screen 17 to supplement the air pressure inside the air supply chamber 14. The water flowing downward through the cooling water curtain 26 is cooled by the air and then flows downward into the bottom end inside the cooling water tank 9. Then the water enters the extension water tank 13 and is filtered through the filter element 38 located at the bottom end inside the lower protective shell 30 through the connecting pipe 33. The filtered water enters the water inlet chamber 46 through the connecting pipe 33 close to the water storage tank 42. Since the bottom of the water inlet chamber 46 is connected to the water storage chamber 47, the water inside the water inlet chamber 46 enters the water storage chamber 47, thus forming a water cycle;

[0042] Since the hollow floating ball 49 is located inside the water storage tank 47, when there is water inside the water storage tank 47, the hollow floating ball 49 floats on the water surface. When there are too many impurities inside the filter element 38, the amount of water flowing into the water inlet chamber 46 decreases, while the amount of water pumped out by the water outlet pipe 48 remains unchanged. As a result, the water level inside the water storage tank 47 continuously decreases, and the hollow floating ball 49 follows the water level down. The downward movement of the hollow floating ball 49 drives the lifting slide rod 51 to move downward, and the movement of the lifting slide rod 51 drives the lifting plate 52 to move downward. When the bottom end of the lifting plate 52 presses down on the start switch 45, the start switch 45 activates the alarm of the sound and light alarm 44. At this time, the staff replaces the filter element 38. The top cover 31 is opened by turning it upward with an external force, and then the rotating wheel 39 is rotated clockwise and stopped after rotating 90 degrees. The rotation of the rotating wheel 39 drives the rotating wheel 32 to rotate, and the rotation of the rotating wheel 32 drives the filter element 38 located inside the rotating wheel 32 to rotate. At this time, the blocked filter element 38 at the bottom rotates to the side, and the new filter element 38 on the other side rotates to the bottom, completing the replacement of the filter element 38. Then, the clamping frame 35 at the top is pulled out from inside the clamping groove 34 with an external force. After the clamping frame 35 is pulled out, the blocked filter element 38 rotated to the top is pushed by the end close to the blocking outer frame 37 and pushed out from the end close to the clamping frame 35. Then, the new filter element 38 is inserted into the inside of the rotating wheel 32, and then the top cover 31 is closed. After replacing the filter element 38, the water flow is unobstructed, the water level inside the water storage tank 47 rises, and the hollow floating ball 49 floats upward and pushes the lifting plate 52 away from the start switch 45.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic parts production injection molding device, comprising a cooling device (1), a first mold (4) and a second mold (5), characterized in that: It also comprises a filtering device (2) and a water storage device (3), wherein the filtering device (2) is arranged at the output end of the cooling device (1), and the water storage device (3) is arranged at the output end of the filtering device (2); the first mold (4) and the second mold (5) are arranged in the same manner; cooling water pipes (6) are evenly arranged inside the first mold (4); a delivery water pipe (7) is fixedly installed at the bottom end of the cooling water pipe (6), and a return water pipe (8) is fixedly installed at the top end of the cooling water pipe (6); The cooling device (1) comprises a cooling water tank (9) and a diversion mechanism (21), the inner bottom end of the cooling water tank (9) is symmetrically fixedly connected to two support frames (28), the diversion mechanism (21) is evenly and symmetrically provided with four, and the diversion mechanism (21) is arranged at the top of the support frame (28), the diversion mechanism (21) comprises a fixed frame (22) and a water diversion tank (24), the two ends of the fixed frame (22) are respectively provided with a plug-in slot (23), the inner side of the plug-in slot (23) is slidably plugged with a plug-in board (27), a heat dissipation water curtain (26) is fixedly installed between the two plug-in boards (27), the heat dissipation water curtain (26) is movably plugged into the interior of the fixed frame (22) through the plug-in board (27), the water diversion tank (24) is arranged at the top of the fixed frame (22), and a sponge (25) is arranged inside the water diversion tank (24); The filtering device (2) comprises an upper protective shell (29), a lower protective shell (30) and a rotating wheel (32); the upper protective shell (29) is fixedly mounted on the top of the lower protective shell (30); the rotating wheel (32) is rotatably connected to the inner sides of the upper protective shell (29) and the lower protective shell (30); a top cover (31) is rotatably mounted on the top of the upper protective shell (29) through a hinge; the bottom ends of both sides of the lower protective shell (30) are respectively fixedly connected to connecting pipes (33); one end of the rotating wheel (32) is evenly fixedly mounted with four blocking outer frames (37); four filter elements (38) are evenly arranged inside the rotating wheel (32); and one end of the rotating wheel (32) is fixedly mounted with a rotating wheel (39); The water storage device (3) comprises a water storage tank (42), a water tank cover (43) is fixedly mounted on the top of the water storage tank (42), a partition plate (53) is fixedly connected to the interior of the water storage tank (42), the interior of the water storage tank (42) is divided into a water inlet bin (46) and a water storage bin (47) by the partition plate (53), the water inlet bin (46) is higher than the water storage bin (47), two water outlet pipes (48) are fixedly mounted on one side of the water storage tank (42) away from the partition plate (53), one end of the water outlet pipe (48) is located at the bottom end of the interior of the water storage bin (47), and the partition plate (53) is fixedly mounted on the side of the water storage tank (42) away from the partition plate (53). A sound and light alarm (44) and a start switch (45) are fixedly installed on the top of one side close to the water storage tank (47), and the start switch (45) is located on the side of the sound and light alarm (44) away from the partition plate (53). Two lifting slide bars (51) are symmetrically slidably connected on one side of the water tank cover (43) close to the partition plate (53), and a hollow floating ball (49) is fixedly installed on the bottom end of the lifting slide bar (51), and a connecting rod (50) is fixedly connected between the two hollow floating balls (49), and a lifting plate (52) is fixedly installed on the top of the two lifting slide bars (51).

2. A plastic parts production injection molding device according to claim 1, characterized in that: A box cover (10) is fixedly installed on the top of the cooling water box (9), a water pump (11) is fixedly installed on the top of the box cover (10), a branch water pipe (12) is fixedly installed on the output end of the water pump (11), and four output pipes are evenly arranged at one end of the branch water pipe (12) away from the water pump (11), an extension water tank (13) is fixedly connected to the middle of the bottom end of one side of the cooling water box (9), an air supply bin (14) is fixedly connected inside the cooling water box (9), a plurality of cooling fans (15) are fixedly installed on both sides of the air supply bin (14), and the two ends of the air supply bin (14) are respectively A blocking frame (16) is fixedly connected thereto, a dust filter (17) is movably inserted between the blocking frame (16) and the inner side of the cooling water tank (9), air vents (18) are respectively provided on opposite sides of the cooling water tank (9), and the positions of the air vents (18) and the dust filter (17) match, and exhaust ports (19) are respectively penetrated through the top ends of the two sides of the cooling water tank (9) adjacent to the air vents (18), and two guide inclined plates (20) are symmetrically provided inside the cooling water tank (9), and the two guide inclined plates (20) are distributed on both sides of the air supply bin (14).

3. A plastic parts production injection molding device according to claim 2, characterized in that: The four output pipes of the branch water pipe (12) are respectively located at the middle of the top ends of the four water distribution boxes (24).

4. A plastic parts production injection molding device according to claim 2, characterized in that: The input end of the water pump (11) is fixedly mounted on an end of the delivery water pipe (7) away from the cooling water pipe (6); the end of the return water pipe (8) away from the cooling water pipe (6) is fixedly mounted on the water outlet pipe (48); and the lower protective shell (30) is fixedly mounted on a side of the extension water tank (13) away from the cooling water tank (9) and a side of the water storage tank (42) close to the partition plate (53) through the connecting pipes (33) on both sides.

5. The plastic parts production injection molding device according to claim 1, characterized in that: Four engaging grooves (34) are evenly formed on the outer side of the rotating wheel (32), and side engaging grooves (40) are respectively formed inside the rotating wheel (32) at both ends of the engaging grooves (34). A engaging ball (41) is evenly fixedly connected to one side of the engaging groove (34), and a engaging frame (35) is movably engaged with the inner side of the engaging groove (34). A spherical engaging groove (36) is evenly formed on one side of the engaging frame (35) close to the engaging ball (41), and the spherical engaging groove (36) matches the engaging ball (41).

6. A plastic parts production injection molding device according to claim 2, characterized in that: The positions of the heat dissipation fan (15) and the diversion mechanism (21) match each other.

7. The plastic parts production injection molding device according to claim 1, characterized in that: The lifting plate (52) is located directly above the starting switch (45), and the top end of the starting switch (45) is in contact with the middle of the bottom end of the lifting plate (52).

8. A method for using a plastic part production injection molding device according to any one of claims 1 to 7, characterized in that: The details are as follows: S1. First, the water pump (11) and the heat dissipation fan (15) are started. The water pump (11) transports the water in the water storage tank (42) to the branch water pipe (12). The branch end of the branch water pipe (12) discharges the water evenly into the water distribution tank (24) through the sponge (25). Then, the water is discharged to the top of the heat dissipation water curtain (26) through the bottom of the water distribution tank (24). The water flows downward through the heat dissipation water curtain (26). The heat dissipation fan (15) blows the air in the air supply chamber (14) to the side of the heat dissipation water curtain (26). The flowing air dissipates the water flowing on the heat dissipation water curtain (26). The air carrying the heat is discharged away from the heat dissipation water curtain (26). The water flows out from one side of the heat dissipation fan (15) and is discharged through the exhaust port (19) opened at the top of the cooling water tank (9). The external air enters the interior of the air supply bin (14) through the air vent (18), and the dust in the air is filtered through the dust filter (17). The water flowing downward through the heat dissipation water curtain (26) is cooled by the air and then flows downward to the bottom end of the interior of the cooling water tank (9). The water then enters the extension water tank (13), and enters the filter element (38) located at the bottom end of the interior of the lower protective shell (30) through the connecting pipe (33) for filtration. The filtered water enters the water inlet bin (46) and the water storage bin (47), thereby forming a water cycle. S2. Since the hollow float (49) is located inside the water storage bin (47), when there is water inside the water storage bin (47), the hollow float (49) floats on the water surface. When there are too many impurities inside the filter element (38), the amount of water flowing into the water inlet bin (46) decreases, while the amount of water drawn out by the water outlet pipe (48) remains unchanged, so that the water level inside the water storage bin (47) continues to decrease, and the hollow float (49) drops along with the horizontal plane. The descent of the hollow float (49) drives the lifting slide bar (51) to move downward, and the movement of the lifting slide bar (51) drives the lifting plate (52) to move downward. When the bottom end of the lifting plate (52) presses the start switch (45) downward, the start switch (45) turns on the alarm of the sound and light alarm (44); S3, an alarm reminds the staff to replace the filter element (38), the staff opens the top cover (31), and then rotates the rotating wheel (39) clockwise, rotates 90 degrees and stops, and the rotation of the rotating wheel (32) causes the new filter element (38) located at the side to rotate to the bottom, and the blocked filter element (38) at the bottom to rotate to the side, completing the replacement of the filter element (38).

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