Injection mold with anti-overflow structure

Abstract

The invention provides an injection mold with an anti-overflow structure, and relates to the technical field of injection molds, the injection mold comprises an injection fixed mold and a feeding cylinder body; a liquid inlet pipe and a liquid discharge pipe are connected to the outer part of the fixed injection mold, a heat dissipation pipe is connected to the end part of the liquid inlet pipe, and the heat dissipation pipe is connected with the liquid discharge pipe; a sealing cover is fixedly connected outside the feeding cylinder body, two one-way valves are mounted outside the sealing cover, the one-way valves are communicated with the interior of the feeding cylinder body, and the injection molding fixed mold is connected with the one-way valves; a pumping and draining piston is mounted in the feeding cylinder body, and a connecting rod is connected to the exterior of the pumping and draining piston; and the outside of the feeding cylinder body is connected with a curved wheel. The supply quantity of liquefied injection molding materials can be accurately adjusted according to the size of an injection molding cavity in the injection mold, the supply quantity of the liquefied injection molding materials is effectively prevented from exceeding the standard, and waste of the liquefied injection molding materials is reduced. The problem that in the application process of an existing injection mold, the supply amount of liquefied injection molding materials is prone to exceeding the standard, and consequently the edge of the injection mold overflows is solved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, and in particular to an injection mold with an anti-overflow structure. Background Art

[0002] Injection molding is a method of plastic forming processing, which is to place granular plastic in a barrel, heat it to make it melt and plasticize, and then use a plunger or screw to apply pressure to inject the flowing material from the nozzle at the end of the barrel into the mold of the desired shape to fill the mold cavity. After cooling and shaping, it is demolded to obtain a plastic part with a certain shape.

[0003] For example, the Chinese patent "CN110406024B, an injection mold that is convenient for controlling material flow rate" with a publication date of 2021.05.07, has a feed channel on the top surface of the upper mold base, and a feed pipe connected to the feed channel is fixedly connected to the upper end of the upper mold base, and a control valve is installed on the feed pipe. An air control mechanism is provided in the bottom of the lower mold base, and a transmission mechanism connected to the air control mechanism is provided in the left and right side walls of the lower mold base, and two connecting mechanisms connected to the two transmission mechanisms are fixedly connected to the upper end of the lower mold base, respectively, and two first grooves are provided at the lower end of the upper mold base, and a fixing mechanism movably connected to the connecting mechanism is provided on the side wall of the first groove, and a first air guide hole connected to the connecting mechanism is provided on the top surface of the first groove, and a first chamber is provided in the top surface of the upper mold base at the left and right ends of the feed channel; it can not only control the flow rate of the raw material during injection molding, but also facilitate the installation and disassembly of the mold.

[0004] During the application process, the existing injection molds lack precise control over the injection amount of liquefied injection molding materials, and the supply of liquefied injection molding materials may easily exceed the standard, resulting in overflow at the edge of the injection mold, causing waste of liquefied injection molding materials. In addition, the heat dissipation effect of the injection mold itself is poor. The heat contained in the injection mold is difficult to release to the outside world in a short time, which can easily cause the temperature of the injection mold itself to be too high, and the injection molded parts need to take a long time to cool and shape. Summary of the invention

[0005] The present invention relates to an injection mold with an anti-overflow structure, which solves the problem that the existing injection mold lacks precise control over the injection amount of liquefied injection molding materials during application, and the liquefied injection molding material supply is prone to exceed the standard, resulting in overflow at the edge of the injection mold, causing waste of liquefied injection molding materials. In addition, the heat dissipation effect of the injection mold itself is poor, and the heat contained in the injection mold is difficult to release to the outside in a short time, which easily leads to the injection mold itself. The temperature is too high, and the injection molded parts need to spend a long time to cool and shape.

[0006] In a first aspect of the present disclosure, there is provided an injection mold with an anti-overflow structure, specifically comprising: an injection mold and a feeding cylinder; the injection mold is externally connected with a liquid inlet pipe and a liquid discharge pipe, the end of the liquid inlet pipe is connected with a heat dissipation pipe, and the heat dissipation pipe is connected to the liquid discharge pipe; the feeding cylinder is externally fixedly connected with a sealing cover, two one-way valves are installed externally with the sealing cover, the one-way valves are connected to the inside of the feeding cylinder, and the injection mold is connected to the one-way valves; the feeding cylinder is internally installed with a pumping piston, the external of the pumping piston is connected with a connecting rod; the feeding cylinder is externally connected with a crank, the internal of the crank is internally connected with a movable connecting block, and the movable connecting block is connected to the connecting rod; the internal of the crank is connected with a manual screw, and the manual screw is connected to the movable connecting block; the feeding cylinder is externally fixedly installed with a motor, and the motor is drivingly connected to the crank; the heat dissipation tube is externally installed with a cooling air cylinder, and a fan is installed inside the top of the cooling air cylinder.

[0007] Furthermore, the pumping piston is slidably connected to the feed cylinder, one of the one-way valves is connected to the feed pipeline, and the other one-way valve is connected to the injection hole of the injection mold.

[0008] Furthermore, the crankshaft is rotatably connected to the feed cylinder, a large gear is arranged on the outside of the crankshaft, a small gear is arranged on the driving shaft of the motor, the small gear meshes with the large gear, one end of the connecting rod is rotatably connected to the pumping piston, and the other end of the connecting rod is rotatably connected to the movable connecting block. The motor drives the crankshaft to rotate, and the crankshaft drives the pumping piston to reciprocate inside the feed cylinder through the connecting rod. When the pumping piston moves outward, the liquefied injection molding material in the feed pipeline is pumped into the feed cylinder through one of the one-way valves. When the pumping piston moves inward, the liquefied injection molding material in the feed cylinder is transported to the injection fixed mold through the other one-way valve.

[0009] Furthermore, a sliding hole is provided inside the crankshaft, and the movable connecting block is slidably connected to the sliding hole provided in the crankshaft, and the manual screw rotates in the sliding hole. A screw hole is provided inside the movable connecting block, and the manual screw is threadedly connected to the screw hole provided in the movable connecting block. According to the size of the injection chamber inside the injection mold, the manual screw is rotated, and the manual screw drives the movable connecting block to move along the sliding hole, thereby changing the distance between the movable connecting block and the rotation center point of the crankshaft, thereby changing the reciprocating movement distance of the pumping piston, thereby realizing precise adjustment of the supply amount of the liquefied injection material.

[0010] Furthermore, a cooling channel is provided inside the injection mold, the cooling channel is in a zigzag shape, one end of the cooling channel is connected to the liquid inlet pipe, and the other end of the cooling channel is connected to the liquid discharge pipe, and a circulating pump is installed on the pipeline of the liquid discharge pipe.

[0011] Furthermore, one end of the heat dissipation pipe is connected with the liquid inlet pipe, and the other end of the heat dissipation pipe is connected with the liquid discharge pipe. The heat dissipation pipe is curved up and down, and a heat sink is provided on the outside of the heat dissipation pipe. The coolant inside the heat dissipation pipe is transported to the cooling channel inside the injection mold through the liquid discharge pipe by a circulating pump, and the injection mold is cooled by the low-temperature coolant. The coolant after heating inside the injection mold flows back to the heat dissipation pipe through the liquid inlet pipe, and the heat dissipation pipe is used to release heat into the air.

[0012] Furthermore, an air inlet is provided in a circumferential shape at the top of the cooling and ventilating cylinder, an exhaust port is provided at the bottom of the cooling and ventilating cylinder, the fan is located at the air inlet, and the heat dissipation pipe is located at the exhaust port.

[0013] Furthermore, a guide pipe is installed inside the cooling ventilation cylinder, the guide pipe is located between the fan and the heat dissipation pipe, the guide pipe is connected to the water supply pipeline, and an atomizing nozzle is provided at the end of the guide pipe, the atomizing nozzle is directed to the position of the heat dissipation pipe below. When the heated coolant flows back into the heat dissipation pipe, the atomizing nozzle sprays water to the outside of the heat dissipation pipe to cool the coolant inside the heat dissipation pipe. The fan is started, and the outside air enters the cooling ventilation cylinder through the air inlet, and the air mixed with water mist is discharged through the exhaust port, thereby accelerating the air circulation outside the heat dissipation pipe.

[0014] The present invention provides an injection mold with an anti-overflow structure, which has the following beneficial effects: When the present invention is in use, the motor drives the crankshaft to rotate, and the crankshaft drives the pumping piston to reciprocate inside the feeding cylinder through the connecting rod. When the pumping piston moves outward, the liquefied injection molding material in the feeding pipeline is pumped into the feeding cylinder through one of the one-way valves. When the pumping piston moves inward, the liquefied injection molding material in the feeding cylinder is transported to the injection molding fixed mold through the other one-way valve, thereby realizing the supply effect of liquefied injection molding material inside the injection molding fixed mold; according to the size of the injection molding chamber inside the injection mold, the manual screw can be rotated, and the manual screw drives the movable connecting block to move along the sliding hole, changing the distance between the movable connecting block and the rotation center point of the crankshaft, thereby changing the reciprocating distance of the pumping piston, realizing precise adjustment of the supply amount of liquefied injection molding material, effectively avoiding exceeding the supply amount of liquefied injection molding material, resulting in overflow at the edge of the injection mold, and effectively saving waste of liquefied injection molding material.

[0015] In addition, the coolant inside the heat pipe is transported to the cooling channel inside the injection mold through the discharge pipe by a circulating pump, and the injection mold is cooled by the low-temperature coolant, so that the injection molded parts inside the injection mold can be accelerated to solidify, shorten the time required for curing, and improve the production efficiency of injection molded parts. The coolant after heating inside the injection mold flows back to the heat pipe through the liquid inlet pipe, and the heat pipe is used to release heat into the air; when the heated coolant flows back to the heat pipe, the atomizing nozzle sprays water to the outside of the heat pipe to cool the coolant inside the heat pipe, and the fan is started, and the outside air enters the cooling air cylinder through the air inlet, and the air mixed with water mist is discharged through the exhaust port, which accelerates the air circulation outside the heat pipe and improves the heat dissipation and cooling effect of the heat pipe on the coolant, thereby ensuring the accelerated curing effect of the injection molded parts inside the injection mold.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture: Figure 1 The overall axial side structural schematic diagram of the injection mold with an anti-overflow structure of the present application is shown; Figure 2 A schematic diagram of the connection structure of the injection mold, the heat dissipation pipe, the liquid inlet pipe and the liquid discharge pipe of the injection mold with the anti-overflow structure of the present application is shown; Figure 3 A schematic diagram of the injection mold fixed mold shaft side structure of the injection mold with an anti-overflow structure of the present application is shown; Figure 4 The feeding cylinder, sealing cover, crankshaft and structural schematic diagram of the injection mold with the anti-overflow structure of the present application are shown; Figure 5 A schematic diagram of the disassembled structure of the feed cylinder, the sealing cover and the pumping piston of the injection mold with the anti-overflow structure of the present application is shown; Figure 6 A schematic diagram of the split structure of the curved wheel and the movable connecting block of the injection mold with an anti-overflow structure of the present application is shown; Figure 7 A schematic diagram of the cooling and ventilation cylinder axial side structure of the injection mold with an anti-overflow structure of the present application is shown; Figure 8A schematic diagram of the internal cross-sectional structure of the cooling and ventilating cylinder of the injection mold with an anti-overflow structure of the present application is shown.

[0020] Reference numerals list 1. Injection mold; 101. Cooling channel; 2. Feed cylinder; 3. Sealing cover; 4. One-way valve; 5. Pumping piston; 6. Connecting rod; 7. Curved wheel; 701. Sliding hole; 702. Large gear; 8. Movable connecting block; 801. Screw hole; 9. Manual screw; 10. Motor; 1001. Small gear; 11. Cooling vent; 1101. Air inlet; 1102. Exhaust port; 12. Heat dissipation pipe; 13. Liquid inlet pipe; 14. Liquid discharge pipe; 15. Circulation pump; 16. Guide pipe; 1601. Atomizing nozzle; 17. Fan. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figures 1 to 8 : The present invention proposes an injection mold with an anti-overflow structure, comprising: an injection mold 1 and a feeding cylinder 2; the injection mold 1 is externally connected with a liquid inlet pipe 13 and a liquid discharge pipe 14, the end of the liquid inlet pipe 13 is connected with a heat dissipation pipe 12, and the heat dissipation pipe 12 is connected to the liquid discharge pipe 14; the feeding cylinder 2 is externally fixedly connected with a sealing cover 3, and two one-way valves 4 are installed on the outside of the sealing cover 3, and the one-way valves 4 are connected to the inside of the feeding cylinder 2, and the injection mold 1 is connected to the one-way valve 4; the feeding cylinder The pumping piston 5 is installed inside the body 2, and the pumping piston 5 is connected to the outside of the connecting rod 6; the feeding cylinder body 2 is connected to the outside of the crankshaft 7, and the crankshaft 7 is connected to the inside of the movable connecting block 8, and the movable connecting block 8 is connected to the connecting rod 6; the crankshaft 7 is connected to the inside of the manual screw 9, and the manual screw 9 is connected to the movable connecting block 8; the feeding cylinder body 2 is fixedly installed with a motor 10, and the motor 10 is connected to the crankshaft 7 in a driving manner; the cooling air cylinder 11 is installed outside the heat dissipation pipe 12, and the cooling air cylinder 11 is installed inside the top A fan 17 is installed; the pumping piston 5 is slidably connected to the feeding cylinder 2, one of the one-way valves 4 is connected to the feeding pipeline, and the other one-way valve 4 is connected to the injection hole of the injection mold 1; the crankshaft 7 is rotatably connected to the feeding cylinder 2, a large gear 702 is arranged on the outside of the crankshaft 7, a small gear 1001 is arranged on the driving shaft of the motor 10, and the small gear 1001 is meshed with the large gear 702, one end of the connecting rod 6 is rotatably connected to the pumping piston 5, and the other end of the connecting rod 6 is connected to the movable The connecting block 8 is rotatably connected, and the motor 10 drives the crankshaft 7 to rotate. The crankshaft 7 drives the pumping piston 5 to reciprocate inside the feeding cylinder 2 through the connecting rod 6. When the pumping piston 5 moves outward, the liquefied injection molding material in the feeding pipeline is pumped into the feeding cylinder 2 through one of the one-way valves 4. When the pumping piston 5 moves inward, the liquefied injection molding material in the feeding cylinder 2 is transported to the injection fixed mold 1 through the other one-way valve 4, thereby realizing the supply effect of the liquefied injection molding material inside the injection fixed mold 1.

[0023] In the disclosed embodiment, a sliding hole 701 is provided inside the crankshaft 7, and the movable connecting block 8 is slidably connected to the sliding hole 701 provided in the crankshaft 7, and the manual screw 9 rotates in the sliding hole 701. A screw hole 801 is provided inside the movable connecting block 8, and the manual screw 9 is threadedly connected to the screw hole 801 provided in the movable connecting block 8; by adopting the above technical scheme, the manual screw 9 can be rotated according to the size of the injection chamber inside the injection mold, and the manual screw 9 drives the movable connecting block 8 to move along the sliding hole 701, thereby changing the distance between the movable connecting block 8 and the rotation center point of the crankshaft 7, thereby changing the reciprocating movement distance of the pumping piston 5, and realizing precise adjustment of the supply amount of the liquefied injection molding material, effectively avoiding the excessive supply amount of the liquefied injection molding material, resulting in overflow at the edge of the injection mold, and effectively saving the waste of the liquefied injection molding material.

[0024] In the embodiment of the present disclosure, a cooling channel 101 is provided inside the injection mold 1, and the cooling channel 101 is in a zigzag shape. One end of the cooling channel 101 is connected to the liquid inlet pipe 13, and the other end of the cooling channel 101 is connected to the liquid discharge pipe 14. A circulating pump 15 is installed on the pipeline of the liquid discharge pipe 14. One end of the heat dissipation pipe 12 is connected to the liquid inlet pipe 13, and the other end of the heat dissipation pipe 12 is connected to the liquid discharge pipe 14. The heat dissipation pipe 12 is in an up and down bending shape, and a heat sink is provided on the outside of the heat dissipation pipe 12; by adopting the above technical scheme, the cooling liquid inside the heat dissipation pipe 12 is transported to the cooling channel 101 inside the injection mold 1 through the liquid discharge pipe 14 by the circulating pump 15, and the injection mold 1 is cooled by the low-temperature cooling liquid, so that the injection molded parts inside the injection mold can be accelerated to solidify, the time required for solidification is shortened, and the production efficiency of the injection molded parts is improved. The cooling liquid after heating inside the injection mold 1 flows back to the heat dissipation pipe 12 through the liquid inlet pipe 13, and the heat dissipation pipe 12 is used to release heat to the air.

[0025] Embodiment 2, on the basis of embodiment 1, the top of the cooling ventilating cylinder 11 is provided with an air inlet 1101 in a surrounding shape, the bottom of the cooling ventilating cylinder 11 is provided with an exhaust port 1102, the fan 17 is located at the air inlet 1101, the heat dissipation pipe 12 is located at the exhaust port 1102, a guide pipe 16 is installed inside the cooling ventilating cylinder 11, the guide pipe 16 is located at the interval between the fan 17 and the heat dissipation pipe 12, the guide pipe 16 is connected to the water supply pipeline, and an atomizing nozzle 1601 is provided at the end of the guide pipe 16, and the atomizing nozzle 1601 is directed downward to disperse water. The position of the heat pipe 12; using the above technical solution, when the heated coolant flows back into the heat pipe 12, the atomizing nozzle 1601 sprays water to the outside of the heat pipe 12 to cool the coolant inside the heat pipe 12, and the fan 17 is started, and the outside air enters the cooling air cylinder 11 through the air inlet 1101, and the air mixed with water mist is discharged through the exhaust port 1102, which accelerates the air circulation outside the heat pipe 12 and improves the heat dissipation and cooling effect of the heat pipe 12 on the coolant, thereby ensuring the accelerated curing effect of the injection molded parts inside the injection mold.

[0026] The working principle of this embodiment is as follows: first, according to the size of the injection chamber inside the injection mold, the manual screw 9 is rotated, and the manual screw 9 drives the movable connecting block 8 to move along the sliding hole 701, changing the distance between the movable connecting block 8 and the rotation center point of the crankshaft 7, thereby changing the reciprocating movement distance of the pumping piston 5, and realizing precise adjustment of the supply amount of the liquefied injection molding material; the crankshaft 7 is driven to rotate by the motor 10, and the crankshaft 7 drives the pumping piston 5 to reciprocate inside the feeding cylinder 2 through the connecting rod 6. When the pumping piston 5 moves outward, the liquefied injection molding material in the feeding pipeline is sucked into the feeding cylinder 2 through one of the one-way valves 4. When the pumping piston 5 moves inward, the liquefied injection molding material in the feeding cylinder 2 is transported to the injection fixed mold 1 through the other one-way valve 4, realizing the supply operation of the liquefied injection molding material inside the injection fixed mold 1; cycle The pump 15 transports the cooling liquid inside the heat pipe 12 to the cooling channel 101 inside the injection mold 1 through the discharge pipe 14, and cools the injection mold 1 with the low-temperature cooling liquid, so that the injection molded parts inside the injection mold can be cured faster; the cooling liquid after heating inside the injection mold 1 flows back to the heat pipe 12 through the liquid inlet pipe 13, and the heat pipe 12 releases heat into the air; when the heated cooling liquid flows back to the heat pipe 12, the atomizing nozzle 1601 sprays water to the outside of the heat pipe 12 to cool the cooling liquid inside the heat pipe 12, and the fan 17 is started, and the outside air enters the cooling ventilation cylinder 11 through the air inlet 1101, and the air mixed with water mist is discharged through the exhaust port 1102, which accelerates the air circulation outside the heat pipe 12 and improves the heat dissipation and cooling effect of the heat pipe 12 on the cooling liquid.

[0027] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0028] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0029] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An injection mold with an anti-overflow structure, comprising: The fixed injection mold (1) and the feeding cylinder (2) are characterized in that: The injection mold (1) is externally connected to a liquid inlet pipe (13) and a liquid discharge pipe (14); the end of the liquid inlet pipe (13) is connected to a heat dissipation pipe (12); the heat dissipation pipe (12) is connected to the liquid discharge pipe (14); the feed cylinder (2) is externally fixedly connected to a sealing cover (3); two one-way valves (4) are externally installed on the sealing cover (3); the one-way valves (4) are connected to the inside of the feed cylinder (2); the injection mold (1) is connected to the one-way valves (4); the feed cylinder (2) is internally installed with a pumping piston (5); the pumping piston (5) is externally connected to a connecting rod (2); rod (6); the feeding cylinder body (2) is externally connected to a crank (7), the crank (7) is internally connected to a movable connecting block (8), and the movable connecting block (8) is connected to the connecting rod (6); the crank (7) is internally connected to a manual screw rod (9), and the manual screw rod (9) is connected to the movable connecting block (8); the feeding cylinder body (2) is externally fixedly mounted with a motor (10), and the motor (10) is transmission-connected to the crank (7); the heat dissipation pipe (12) is externally mounted with a cooling ventilation cylinder (11), and a fan (17) is installed at the top of the cooling ventilation cylinder (11).

2. The injection mold with an anti-overflow structure according to claim 1, characterized in that: The pumping piston (5) is slidably connected to the inside of the material supply cylinder (2), one of the one-way valves (4) is connected to the material supply pipeline, and the other one-way valve (4) is connected to the injection hole of the injection mold (1).

3. The injection mold with an anti-overflow structure according to claim 1, characterized in that: The crankshaft (7) is rotatably connected to the feed cylinder (2); a large gear (702) is disposed outside the crankshaft (7); a small gear (1001) is disposed on the drive shaft of the motor (10); the small gear (1001) is meshed with the large gear (702); one end of the connecting rod (6) is rotatably connected to the pumping piston (5); and the other end of the connecting rod (6) is rotatably connected to the movable connecting block (8).

4. The injection mold with an anti-overflow structure according to claim 1, characterized in that: The crankshaft (7) is provided with a sliding hole (701) inside, the movable connecting block (8) is slidably connected to the sliding hole (701) provided in the crankshaft (7), the manual screw rod (9) rotates in the sliding hole (701), the movable connecting block (8) is provided with a screw hole (801), and the manual screw rod (9) is threadedly connected to the screw hole (801) provided in the movable connecting block (8).

5. The injection mold with an anti-overflow structure according to claim 1, characterized in that: The injection mold (1) is provided with a cooling channel (101) inside. The cooling channel (101) is in a zigzag shape. One end of the cooling channel (101) is connected to the liquid inlet pipe (13), and the other end of the cooling channel (101) is connected to the liquid discharge pipe (14). A circulating pump (15) is installed on the pipeline of the liquid discharge pipe (14).

6. The injection mold with an anti-overflow structure according to claim 1, characterized in that: One end of the heat dissipation pipe (12) is connected to the liquid inlet pipe (13), and the other end of the heat dissipation pipe (12) is connected to the liquid discharge pipe (14). The heat dissipation pipe (12) is in an up-and-down curved shape, and a heat dissipation fin is provided outside the heat dissipation pipe (12).

7. The injection mold with an anti-overflow structure according to claim 1, characterized in that: The cooling and ventilating cylinder (11) is provided with an air inlet (1101) in a circumferential shape at the top, and an exhaust port (1102) is provided at the bottom of the cooling and ventilating cylinder (11). The fan (17) is located at the air inlet (1101), and the heat dissipation pipe (12) is located at the exhaust port (1102).

8. The injection mold with an anti-overflow structure according to claim 1, characterized in that: A guide pipe (16) is installed inside the cooling ventilation cylinder (11). The guide pipe (16) is located between the fan (17) and the heat dissipation pipe (12). The guide pipe (16) is connected to a water supply pipeline. An atomizing nozzle (1601) is provided at the end of the guide pipe (16). The atomizing nozzle (1601) faces the position of the heat dissipation pipe (12) below.

Images