Cooling mechanism for injection mold

Abstract

The utility model provides an injection mold cooling mechanism, and belongs to the technical field of mold cooling. The injection mold cooling mechanism comprises a lower mold base, an upper mold base and limiting rods, the limiting rods are installed at the four corners of the top end of the lower mold base correspondingly, the top ends of the limiting rods are connected with the corners of the upper mold base in a penetrating and inserting mode, a molding groove is formed in the top end of the lower mold base, and a cooling cavity is formed in the portion, close to the molding groove, of the lower mold base. A liquid supply mechanism is arranged on one side of the lower die base, one end of the liquid supply mechanism communicates with the interior of the cooling cavity, a flow dividing pipeline is arranged on the side, away from the liquid supply mechanism, of the lower die base and comprises a liquid discharging pipe, a reversing valve, a first pipeline and a second pipeline, the liquid discharging pipe communicates with the interior of the cooling cavity, and the liquid discharging pipe communicates with the interior of the cooling cavity. And one end of the liquid discharge pipe extends to the outer part of the lower die holder and is communicated with the input end of the reversing valve.

Description

Technical Field

[0001] The utility model relates to the technical field of mold cooling, in particular to an injection mold cooling mechanism. Background Art

[0002] An injection mold is a tool for producing plastic products; it is also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is also called injection molding, which is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of patterns and colors, shapes from simple to complex, sizes from large to small, and precise product dimensions. The product is easy to update and can be made into parts with complex shapes. Injection molding is suitable for mass production and molding processing fields such as products with complex shapes. After searching, a Chinese patent with authorization announcement number CN210851210U discloses an injection mold conformal water cooling mechanism, including a water inlet, a water outlet, a first tap, a second tap, a water inlet pipe, a water outlet pipe, A fixing frame, thermally conductive silicone and a heat sink, a water inlet is provided on the front end face of the lower mold body, a second tap is arranged on the rear side of the water inlet, a water inlet pipe is connected to the rear side of the second tap, a water outlet is provided on the front end face of the lower mold body, a first tap is arranged on the rear side of the water outlet, a water outlet pipe is connected to the rear side of the first tap, a fixing frame is arranged on the upper side of the interior of the lower mold body, a heat sink is arranged on the interior of the fixing frame, and thermally conductive silicone is arranged on the upper side of the heat sink. This design solves the problem of poor cooling effect of the original injection mold. The utility model has a reasonable structure, is convenient for rapid and uniform cooling with water transportation.

[0003] However, in actual use of this solution, due to the single pipeline in the conformal cooling component, it can only provide one flow path for the coolant, and a continuous supply of sufficient low-temperature coolant is required. The coolant cannot be recycled, and the energy consumption is high, which is not conducive to saving the cost of using the injection mold.

[0004] Therefore, we made improvements on this and proposed an injection mold cooling mechanism. Utility Model Content

[0005] In order to solve the problem that the cooling fluid in the existing cooling mechanism cannot be circulated and used, resulting in high energy consumption, the utility model provides an injection mold cooling mechanism.

[0006] The utility model is achieved in this way:

[0007] A cooling mechanism for an injection mold comprises a lower mold base, an upper mold base and a limiting rod, wherein limiting rods are respectively installed at four corners of the top end of the lower mold base, and the top ends of the limiting rods are interlaced and connected with the corners of the upper mold base, and a shaping groove is opened at the top end of the lower mold base, and a cooling chamber is arranged in the lower mold base near the shaping groove. A liquid supply mechanism is arranged on one side of the lower mold base, and one end of the liquid supply mechanism is connected with the interior of the cooling chamber, and a shunt pipe is arranged on the side of the lower mold base away from the liquid supply mechanism, and the shunt pipe comprises a drain pipe, a reversing valve, a first pipe and a second pipe, the drain pipe is connected to the interior of the cooling chamber, one end of the drain pipe extends to the outside of the lower mold base and is connected to the input end of the reversing valve, and the output ends of the reversing valve are respectively connected to the first pipe and the second pipe, and one end of the first pipe and the second pipe are respectively provided with a cooling mechanism, and one end of the two cooling mechanisms are respectively provided with a reflux pipe, and one end of the two reflux pipes are respectively connected to the two sides of the liquid supply mechanism.

[0008] Furthermore, the liquid supply mechanism includes an insulation box, a water pump, an infusion tube, a straight tube and a docking tube. The water pump is installed at the bottom end of the interior of the insulation box, the output end of the water pump is connected to the infusion tube, one end of the infusion tube is connected to the straight tube, and one end of the straight tube extends to the interior of the cooling chamber.

[0009] The beneficial effect of adopting the above further scheme is that the coolant inside the insulation box is sucked by the water pump, so that the coolant flows inside the infusion pipe and the straight pipe until it is transported to the inside of the cooling chamber, thereby facilitating the cooling of the injection molded workpiece of the molding groove.

[0010] Furthermore, both sides of the outer wall of the heat insulation box are connected to the butt pipes respectively.

[0011] The beneficial effect of adopting the above further solution is that, through the use of the connecting pipe, the return pipe can be easily connected, so that the coolant after the internal temperature is reduced can flow back to the interior of the insulation box.

[0012] Furthermore, the reflux pipe includes a right-angle elbow, a solenoid valve and a thermometer. The solenoid valve is installed at one end of the right-angle elbow, and one end of the solenoid valve is connected to one end of the butt joint pipe.

[0013] The beneficial effect of adopting the above further scheme is that, through the installation and use of the solenoid valve, it controls the internal on-off of the connecting pipe, thereby facilitating the blocking of the coolant inside the cooling mechanism, so that the coolant has a sufficient cooling time.

[0014] Furthermore, a thermometer is installed on the outer wall of the right-angle elbow.

[0015] The beneficial effect of adopting the above further solution is that, by installing and using a thermometer, it is convenient to monitor the internal temperature value of the right-angle elbow in real time.

[0016] Furthermore, the two cooling mechanisms respectively include a square frame, a plurality of heat sink fins, a guide copper tube, a frame plate, a fan, a first hole and a second hole. A plurality of heat sink fins are installed inside the square frame, and a plurality of heat sink fins are inserted with the guide copper tube. One end of the guide copper tube is connected to one end of the right-angle bend tube.

[0017] The beneficial effect of adopting the above further scheme is that, through the installation and use of the heat dissipation fins, it is convenient to fix the guide copper tube while also accelerating the heat dissipation effect of the guide copper tube, thereby facilitating efficient cooling of the coolant inside the guide copper tube.

[0018] Furthermore, one end of the first pipeline and the second pipeline are respectively connected to the other end of the two guide copper tubes.

[0019] The beneficial effect of adopting the above further solution is that, by connecting the first pipeline and the second pipeline, the coolant after heat exchange can be transported to different guide copper tubes respectively.

[0020] Furthermore, a frame plate is installed on one side of the square frame, and a fan is embedded in the outer wall of the frame plate.

[0021] The beneficial effect of adopting the above further solution is that, by installing and using the frame plate and the fan, the air flow rate on one side of the frame is accelerated, thereby increasing the cooling rate of the coolant inside the guide copper tube.

[0022] Furthermore, a first hole and a second hole are respectively arranged on both sides of the square frame, and two ends of the guide copper tube respectively pass through the first hole and the second hole.

[0023] The beneficial effect of adopting the above further solution is that, through the provision of the first hole and the second hole, space is provided for the insertion of the guide copper tube.

[0024] The beneficial effects of the utility model are as follows: through the coordinated use of the shaping groove, the cooling chamber, the liquid supply mechanism, the diversion pipe, the cooling mechanism and the return pipe, the cooling mechanism can realize the function of two-way alternating supply of cooling liquid, and at the same time realize the recycling of the cooling liquid, effectively reducing the cost expenditure, wherein the liquid supply mechanism supplies sufficient cooling liquid to the inside of the cooling chamber, so that the injection molded workpiece inside the shaping groove is cooled, which is beneficial to demoulding, and through the connection and use of the reversing valve, the cooling liquid received by the discharge pipe inside the cooling chamber is diverted to the first pipe or the second pipe respectively, and the heated cooling liquid is guided to one of the cooling mechanisms for cooling treatment, and then through the connection and use of the return pipe, the cooling liquid after cooling can be re-delivered to the inside of the liquid supply mechanism, thereby constituting the recycling of the cooling liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A three-dimensional diagram of an injection mold cooling mechanism provided by the utility model;

[0027] Figure 2 A cross-sectional view of a liquid supply mechanism of an injection mold cooling mechanism provided by the utility model;

[0028] Figure 3 A schematic diagram of a cooling mechanism of an injection mold cooling mechanism provided by the utility model;

[0029] Figure 4 A schematic diagram of a reflux pipeline of an injection mold cooling mechanism provided by the utility model;

[0030] Figure 5 The utility model provides a schematic diagram of a flow distribution pipeline of an injection mold cooling mechanism.

[0031] In the figure: 100, lower die base; 200, upper die base; 300, limit rod; 400, liquid supply mechanism; 4001, heat insulation box; 4002, water pump; 4003, infusion tube; 4004, straight pipe; 4005, butt pipe; 500, cooling mechanism; 5001, square frame; 5002, heat dissipation fins; 5003, guide copper pipe; 5004, frame plate; 5005, fan; 5006, first hole; 5007, second hole; 600, return pipe; 6001, right-angle elbow; 6002, solenoid valve; 6003, thermometer; 700, shaping groove; 800, diversion pipe; 8001, drain pipe; 8002, reversing valve; 8003, first pipe; 8004, second pipe; 900, cooling chamber. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1

[0035] See also Figure 1-Figure 5 The utility model provides a technical solution: an injection mold cooling mechanism, comprising a lower mold base 100, an upper mold base 200 and a limiting rod 300, the limiting rods 300 are respectively installed at the four corners of the top of the lower mold base 100, the top of the limiting rod 300 is interlaced with the corner of the upper mold base 200, the top of the lower mold base 100 is provided with a shaping groove 700, the lower mold base 100 is provided with a cooling chamber 900 near the shaping groove 700, and a liquid supply mechanism 400 is provided on one side of the lower mold base 100, One end of the liquid supply mechanism 400 is connected to the interior of the cooling chamber 900. A shunt pipe 800 is provided on the side of the lower mold base 100 away from the liquid supply mechanism 400. The shunt pipe 800 includes a drain pipe 8001, a reversing valve 8002, a first pipe 8003, and a second pipe 8004. The drain pipe 8001 is connected to the interior of the cooling chamber 900. One end of the drain pipe 8001 extends to the outside of the lower mold base 100 and is connected to the input end of the reversing valve 8002. The reversing valve The output ends of 8002 are respectively connected to the first pipeline 8003 and the second pipeline 8004, and one end of the first pipeline 8003 and the second pipeline 8004 is respectively provided with a cooling mechanism 500, and one end of the two cooling mechanisms 500 is respectively provided with a return pipeline 600, and one end of the two return pipelines 600 is respectively connected to the two sides of the liquid supply mechanism 400. The liquid supply mechanism 400 supplies sufficient coolant to the interior of the cooling chamber 900, so that the injection molded workpiece inside the molding groove 700 is cooled, which is beneficial to demolding, and through the connection and use of the reversing valve 8002, the drain pipe 8001 receives the coolant inside the cooling chamber 900 and diverts it to the first pipeline 8003 or the second pipeline 8004, and guides the heated coolant to one of the cooling mechanisms 500 for cooling treatment, and then through the connection and use of the return pipeline 600, it can transport the cooled coolant back to the interior of the liquid supply mechanism 400, thereby forming a circulating use of the coolant.

[0036] Embodiment 2

[0037] See also Figure 1-Figure 5As an embodiment of the present invention, further, the liquid supply mechanism 400 includes a heat insulation box 4001, a water pump 4002, a liquid infusion tube 4003, a straight tube 4004 and a butt joint 4005. The water pump 4002 is installed at the bottom end of the interior of the heat insulation box 4001, and the output end of the water pump 4002 is connected to the liquid infusion tube 4003. One end of the liquid infusion tube 4003 is connected to the straight tube 4004. One end of the straight tube 4004 extends to the interior of the cooling chamber 900. The water pump 4002 sucks the coolant inside the heat insulation box 4001, so that the coolant circulates inside the liquid infusion tube 4003 and the straight tube 4004 until it is transported to the interior of the cooling chamber 900, thereby facilitating the cooling of the injection molded workpiece of the shaping groove 700. The outer wall of the heat insulation box 4001 is connected to the butt joint 4005 on both sides. By connecting and using the butt joint 4005, it is convenient to connect the return pipe 600, so that the coolant after cooling inside it can flow back to the inside of the heat insulation box 4001. The return pipe 600 includes a right-angle bend 6001, a solenoid valve 6002 and a thermometer 6003. The solenoid valve 6002 is installed at one end of the right-angle bend 6001, and one end of the solenoid valve 6002 is connected to one end of the butt joint 4005. By installing and using the solenoid valve 6002, it controls the internal on-off of the butt joint 4005, so as to facilitate blocking the coolant inside the cooling mechanism 500, so that the coolant has a sufficient cooling time. The thermometer 6003 is installed on the outer wall of the right-angle bend 6001. By installing and using the thermometer 6003, it is convenient to monitor the internal temperature value of the right-angle bend 6001 in real time.

[0038] Embodiment 3

[0039] See also Figure 1-Figure 5As an embodiment of the present invention, further, the two cooling mechanisms 500 respectively include a square frame 5001, a plurality of heat dissipation fins 5002, a guide copper tube 5003, a frame plate 5004, a fan 5005, a first hole 5006 and a second hole 5007. A plurality of heat dissipation fins 5002 are installed inside the square frame 5001, and the guide copper tube 5003 is inserted inside the plurality of heat dissipation fins 5002. One end of the guide copper tube 5003 is connected to one end of the right-angle elbow 6001. Through the installation and use of the heat dissipation fins 5002, it is convenient to fix the guide copper tube 5003 while also facilitating the heat dissipation effect of the guide copper tube 5003, thereby facilitating the cooling liquid inside the guide copper tube 5003 to achieve efficient cooling. One end of the first pipe 8003 and the second pipe 8004 are respectively connected to the two guide copper tubes 5003 and 5004. The other end of the tube 5003 is connected, and through the connection and use of the first pipeline 8003 and the second pipeline 8004, the coolant after heat exchange can be transported to different guide copper tubes 5003 respectively. A frame plate 5004 is installed on one side of the square frame 5001, and a fan 5005 is embedded in the outer wall of the frame plate 5004. Through the installation and use of the frame plate 5004 and the fan 5005, the air flow rate on one side of the square frame 5001 is accelerated, thereby improving the cooling rate of the coolant inside the guide copper tube 5003. A first hole 5006 and a second hole 5007 are respectively arranged on both sides of the square frame 5001. The two ends of the guide copper tube 5003 pass through the first hole 5006 and the second hole 5007 respectively. The setting of the first hole 5006 and the second hole 5007 facilitates the provision of space for the insertion of the guide copper tube 5003.

[0040] Specifically, the working principle of the injection mold cooling mechanism is as follows: when in use, first, the mechanism is moved to a designated workshop to conduct an operation test, and is put into use after ensuring good sealing. The water pump 4002 is started to suck the coolant inside the heat insulation box 4001 at its input end, so that the coolant circulates inside the infusion pipe 4003 and the straight pipe 4004 until it is transported to the inside of the cooling chamber 900, thereby facilitating the cooling of the injection molded workpiece in the shaping groove 700, thereby facilitating demolding, and then the reversing valve 8002 is connected and used, so that the drain pipe 8001 receives the coolant inside the cooling chamber 900 and diverts it to the first pipe 8003 or the second pipe 8004 respectively, and guides the heated coolant to one of the cooling mechanisms 500 for cooling treatment, and the heat dissipation fins 5002 are installed and used to facilitate cooling. While fixing the guide copper tube 5003, it is also convenient to accelerate the heat dissipation effect of the guide copper tube 5003, so that the coolant inside the guide copper tube 5003 can be efficiently cooled. At the same time, the fan 5005 is started to perform a blowing operation, prompting one side of the box 5001 to accelerate the air flow rate, thereby increasing the cooling rate of the coolant inside the guide copper tube 5003. Then, through the connection and use of the docking tube 4005, it is convenient to dock the return pipe 600, so that the coolant after cooling inside it can flow back to the inside of the heat insulation box 4001, and through the installation and use of the solenoid valve 6002, it controls the internal on and off of the docking tube 4005, so as to block the coolant inside the cooling mechanism 500, so that the coolant has a sufficient cooling time. At the same time, through the installation and use of the thermometer 6003, it is convenient to monitor the internal temperature value of the right-angle bend pipe 6001 in real time.

[0041] It should be noted that the specific models and specifications of the water pump 4002, fan 5005, solenoid valve 6002 and thermometer 6003 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0042] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An injection mold cooling mechanism, comprising a lower mold base (100), an upper mold base (200) and a limiting rod (300), characterized in that: Limit rods (300) are respectively installed at the four corners of the top of the lower die base (100), and the top of the limit rod (300) is connected with the corner of the upper die base (200). A shaping groove (700) is provided at the top of the lower die base (100). A cooling chamber (900) is arranged inside the lower die base (100) near the shaping groove (700). A liquid supply mechanism (400) is arranged on one side of the lower die base (100), and one end of the liquid supply mechanism (400) is connected with the inside of the cooling chamber (900). A shunt pipe (800) is arranged on the side of the lower die base (100) away from the liquid supply mechanism (400), and the shunt pipe (800) includes a discharge pipe (8001), a reversing valve (8002) and a discharge pipe (8001). , a first pipeline (8003) and a second pipeline (8004), the drain pipe (8001) is connected to the interior of the cooling chamber (900), one end of the drain pipe (8001) extends to the outside of the lower mold base (100) and is connected to the input end of the reversing valve (8002), the output end of the reversing valve (8002) is respectively connected to the first pipeline (8003) and the second pipeline (8004), one end of the first pipeline (8003) and the second pipeline (8004) are respectively provided with a cooling mechanism (500), one end of the two cooling mechanisms (500) are respectively provided with a return pipe (600), one end of the two return pipes (600) are respectively connected to the two sides of the liquid supply mechanism (400).

2. The injection mold cooling mechanism according to claim 1, characterized in that: The liquid supply mechanism (400) comprises a heat-insulating box (4001), a water pump (4002), a liquid infusion tube (4003), a straight tube (4004) and a butt-joint tube (4005); the water pump (4002) is installed at the bottom end of the interior of the heat-insulating box (4001); the output end of the water pump (4002) is connected to the liquid infusion tube (4003); one end of the liquid infusion tube (4003) is connected to the straight tube (4004); and one end of the straight tube (4004) extends to the interior of the cooling chamber (900).

3. The injection mold cooling mechanism according to claim 2, characterized in that: Both sides of the outer wall of the heat insulation box (4001) are connected to the butt joint pipe (4005) respectively.

4. The injection mold cooling mechanism according to claim 3, characterized in that: The return pipe (600) comprises a right-angle elbow (6001), a solenoid valve (6002) and a thermometer (6003). The solenoid valve (6002) is installed at one end of the right-angle elbow (6001), and one end of the solenoid valve (6002) is connected to one end of the butt joint (4005).

5. The injection mold cooling mechanism according to claim 4, characterized in that: A thermometer (6003) is installed on the outer wall of the right-angle elbow (6001).

6. The injection mold cooling mechanism according to claim 5, characterized in that: The two cooling mechanisms (500) respectively comprise a square frame (5001), a plurality of heat dissipation fins (5002), a guide copper tube (5003), a frame plate (5004), a fan (5005), a first hole (5006) and a second hole (5007); a plurality of heat dissipation fins (5002) are installed inside the square frame (5001); a guide copper tube (5003) is inserted inside the plurality of heat dissipation fins (5002); one end of the guide copper tube (5003) is connected to one end of the right-angle elbow (6001).

7. The injection mold cooling mechanism according to claim 6, characterized in that: One end of the first pipeline (8003) and one end of the second pipeline (8004) are respectively connected to the other end of the two guide copper tubes (5003).

8. The injection mold cooling mechanism according to claim 7, characterized in that: A frame plate (5004) is installed on one side of the square frame (5001), and a fan (5005) is embedded in the outer wall of the frame plate (5004).

9. The injection mold cooling mechanism according to claim 8, characterized in that: A first hole (5006) and a second hole (5007) are respectively arranged on both sides of the square frame (5001), and two ends of the guide copper tube (5003) respectively penetrate the first hole (5006) and the second hole (5007).

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