Magnetic building block injection molding machine with rapid circulating cooling function

Abstract

The utility model relates to the technical field of injection molding machines, in particular to a quick circulating cooling magnetic building block injection molding machine which comprises an injection molding machine body used for performing injection molding on shells of magnetic building blocks. The mold is mounted in the injection molding machine body and is used for cooling and molding the molten material into a building block shell; the cooling assembly is used for introducing cooling water into the mold to cool the building block shell; the cooling assembly comprises a cooling box arranged outside the injection molding machine body, a plurality of layers of cooling pipes used for cooling hot cooling water are wound in the cooling box, and heat conducting fins used for conducting heat are arranged outside the cooling pipes; the top and the bottom of the cooling box are provided with fans used for sucking external air into the cooling box. According to the utility model, the cooling pipes are cooled by arranging the multiple layers of cooling pipes which are spirally coiled in the cooling box and forming convection through the upper fan and the lower fan, so that the cooling efficiency is higher, and the cooling effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a magnetic building block injection molding machine with rapid cyclic cooling. Background Art

[0002] With the continuous growth of the market demand for educational toys and intelligent construction products, magnetic building blocks, as an educational toy integrating magnetic connection and structural building functions, the manufacturing precision and production efficiency have become the core concerns of the industry. Injection molding technology, due to its high efficiency and batch production characteristics, has become the main processing method for the plastic shells and magnetic component encapsulation of magnetic building blocks.

[0003] Traditional injection molding machines have many drawbacks in the cooling link. Taking a common water cooling system as an example, although water has advantages such as low cost and large specific heat capacity and can take away the heat of the mold, in actual operation, generally a serpentine tube is used for cooling. When the water flows through the serpentine tube, a fan is used to cool the cooling tube. However, due to the unreasonable design of the installation position of the fan, some fans are too far away from the serpentine cooling tube, or the layout does not fully consider the air flow path, resulting in the inability to form effective convection on the surface of the cooling tube, and a large amount of heat is difficult to be taken away in time, and the cooling efficiency is also greatly reduced. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a magnetic building block injection molding machine with rapid cyclic cooling, which is provided with cooling tubes spirally wound in multiple layers in a cooling box, and convective cooling is formed by two fans, the upper and the lower, to cool the cooling tubes, with higher cooling efficiency and better effect.

[0005] To solve the problems of the existing technology, the utility model provides a magnetic building block injection molding machine with rapid cyclic cooling, which is characterized in that: it includes an injection molding machine body for injection molding the shell of the magnetic building block; a mold installed in the injection molding machine body for cooling and shaping the molten material into a building block shell; a cooling component for injecting cooling water into the mold to cool the building block shell; the cooling component includes a cooling box arranged outside the injection molding machine body, and multiple layers of cooling tubes for cooling the hot cooling water are spirally wound inside the cooling box, a heat conducting sheet for heat conduction is arranged outside the cooling tubes, and fans for sucking external air into the cooling box are installed at the top and bottom of the cooling box.

[0006] Preferably, the cooling tubes are spirally wound from bottom to top in multiple layers in the cooling box, and the cooling water is discharged from the mold, enters from the lower end of the cooling tube and is discharged from the upper end of the cooling tube.

[0007] Preferably, a plurality of through holes for discharging the air inside the cooling box are opened on four surfaces of the cooling box.

[0008] Preferably, the cooling assembly further includes a water tank disposed outside the injection molding machine body and used for storing cooling water.

[0009] Preferably, the cooling assembly further includes a water pump disposed outside the injection molding machine body and used for pumping out the cooling water in the water tank. The water inlet end of the water pump is connected to a water inlet pipe, the water inlet pipe is connected to the water tank, the water outlet end of the water pump is connected to a connecting pipe, and the connecting pipe is connected to the mold.

[0010] Preferably, the cooling assembly further includes a return pipe connecting the mold and the lower end of the cooling pipe. The upper end of the cooling pipe is connected to a drain pipe, and the drain pipe extends into the water tank.

[0011] Preferably, the cooling assembly further includes a plurality of shunt pipes disposed on the drain pipe, and each shunt pipe is provided with a plurality of nozzles capable of spraying the cooling water upward.

[0012] Preferably, the injection molding machine body includes a base disposed on the ground. The top of the base is fixed with an extrusion cylinder, and a screw capable of extruding the molten material is disposed inside the extrusion cylinder. The injection molding machine body further includes a rotary drive member disposed at one end of the extrusion cylinder and used for driving the screw to rotate.

[0013] The beneficial effects of the present utility model compared with the prior art are as follows:

[0014] 1. This application proposes an efficient cooling solution. Through the internal structure of the cooling box and the cooling water circulation path, the cooling effect is significantly improved. Specifically, inside the cooling box, cooling pipes are arranged. The cooling pipes form a multi-layer structure in a spiral winding manner. This design effectively extends the length of the cooling pipes, thereby increasing the residence time of the cooling medium in the pipes and facilitating sufficient heat exchange. At the same time, heat conduction fins are provided on the surface of the cooling pipes. These heat conduction fins greatly increase the contact area between the cooling pipes and the surrounding air, accelerating heat transfer. To further enhance the cooling effect, fans are installed at the upper and lower ends of the cooling box respectively. Under the action of the fans, external air is sucked into the inside of the cooling box, forming a strong air convection. This convection not only accelerates the dissipation of heat on the surface of the cooling pipes but also causes the air to diffuse into the surrounding environment, effectively taking the heat out of the cooling box and achieving a more significant cooling effect;

[0015] 2. In addition, this application also innovatively designs the circulation path of the cooling water. When the cooling water flows into the drain pipe, it will be further shunted into the shunt pipes and finally sprayed upward through the nozzles. During the upward spraying process of the cooling water, it comes into full contact with the air, enabling the heat to be quickly dissipated. Subsequently, the cooling water falls into the water tank, completing a cooling cycle. This design not only further reduces the temperature of the cooling water but also improves the efficiency of the entire cooling system. Description of the Drawings

[0016] Figure 1 is the first three - dimensional structural schematic diagram of a magnetic building block injection molding machine with rapid cyclic cooling of the present utility model;

[0017] Figure 2 is the second three - dimensional structural schematic diagram of a magnetic building block injection molding machine with rapid cyclic cooling of the present utility model;

[0018] Figure 3 is the three - dimensional structural schematic diagram of the injection molding machine body of a magnetic building block injection molding machine with rapid cyclic cooling of the present utility model;

[0019] Figure 4 is the exploded structural schematic diagram of the injection molding machine body of a magnetic building block injection molding machine with rapid cyclic cooling of the present utility model;

[0020] Figure 5 is the first three - dimensional structural schematic diagram of the cooling component of a magnetic building block injection molding machine with rapid cyclic cooling of the present utility model;

[0021] Figure 6 is the second three - dimensional structural schematic diagram of the cooling component of a magnetic building block injection molding machine with rapid cyclic cooling of the present utility model;

[0022] Figure 7 is the third three - dimensional structural schematic diagram of the cooling component of a magnetic building block injection molding machine with rapid cyclic cooling of the present utility model.

[0023] The reference numerals in the figure are: 1, injection molding machine body; 11, base; 12, extrusion barrel; 121, rotary drive member; 122, screw; 2, cooling component; 21, water tank; 22, cooling box; 221, through - hole; 222, fan; 223, cooling pipe; 2231, heat - conducting sheet; 224, return pipe; 225, drain pipe; 2251, shunt pipe; 2252, nozzle; 226, water pump; 2261, water inlet pipe; 2262, connecting pipe; 3, mold. Detailed implementation manners

[0024] To further understand the features, technical means, and the specific purposes and functions achieved by the present utility model, the following further describes the present utility model in detail in conjunction with the accompanying drawings and specific implementation manners.

[0025] Refer to Figures 1-7As shown in the figure, the utility model provides a magnetic building block injection molding machine with rapid cycle cooling, which includes an injection molding machine body 1 for injection molding the outer shell of magnetic building blocks; a mold 3 installed in the injection molding machine body 1 for cooling and molding the molten material into a building block shell; a cooling component 2 for injecting cooling water into the mold 3 to cool the building block shell. The cooling component 2 includes a cooling box 22 arranged outside the injection molding machine body 1. Inside the cooling box 22, there are multiple layers of cooling pipes 223 coiled for cooling the hot cooling water. Outside the cooling pipes 223, there are heat conducting fins 2231 for heat conduction. At the top and bottom of the cooling box 22, there are fans 222 for sucking external air into the cooling box 22. The cooling pipes 223 are spirally coiled from bottom to top into multiple layers in the cooling box 22, and the cooling water is discharged from the mold 3, enters from the lower end of the cooling pipes 223, and is discharged from the upper end of the cooling pipes 223.

[0026] The injection molding machine body 1 is started, and the molten material is injected into the mold 3 installed in the injection molding machine body 1. The material gradually fills in the mold 3 and forms a preliminary shape of the building block shell. The cooling component 2 starts to work and injects cooling water into the mold 3. The cooling water absorbs the heat of the mold 3 and the building block shell, enabling the building block shell to be cooled and shaped more quickly. After the hot cooling water is discharged from the mold 3, it enters the cooling pipes 223 inside the cooling box 22. The cooling pipes 223 are spirally coiled from bottom to top into multiple layers, increasing the flow path and time of the cooling water in the cooling box 22, which is beneficial to the full dissipation of heat. The heat conducting fins 2231 arranged outside the cooling pipes 223 enhance the heat conduction performance, quickly conducting the heat of the cooling water in the cooling pipes 223 to the surrounding air. At the same time, the fans 222 installed at the top and bottom of the cooling box 22 are started to suck external air into the cooling box 22, accelerating the air flow and further taking away the heat around the heat conducting fins 2231 and the cooling pipes 223, so that the cooling water continuously cools down during the flow in the cooling pipes 223.

[0027] There are several through holes 221 on the four sides of the cooling box 22 for discharging the air inside the cooling box 22. The cooling component 2 further includes a water tank 21 arranged outside the injection molding machine body 1 and used for storing cooling water.

[0028] The water tank 21 is the starting and storage point of the cooling water circulation system, providing sufficient cooling water source for the entire cooling process. In the cooling cycle, the cooling water in the water tank 21 is transported to the mold 3 to cool the building block shell, absorbs heat and is discharged from the mold 3, then enters the cooling pipes 223 in the cooling box 22 for cooling, and the cooled cooling water can return to the water tank 21 again to prepare for the next cycle use, forming a complete cooling water circulation system.

[0029] The cooling assembly 2 further includes a water pump 226 disposed outside the injection molding machine body 1 and used to extract the cooling water in the water tank 21. The water inlet end of the water pump 226 is connected to a water inlet pipe 2261, and the water inlet pipe 2261 is connected to the water tank 21. The water outlet end of the water pump 226 is connected to a connecting pipe 2262, and the connecting pipe 2262 is connected to the mold 3. The cooling assembly 2 further includes a return pipe 224 connecting the mold 3 and the lower end of the cooling pipe 223. The upper end of the cooling pipe 223 is connected to a drain pipe 225, and the drain pipe 225 extends into the water tank 21. The cooling assembly 2 further includes a plurality of shunt pipes 2251 disposed on the drain pipe 225, and each shunt pipe 2251 is provided with a plurality of nozzles 2252 capable of spraying the cooling water upward.

[0030] The cooled cooling water is discharged from the upper end of the cooling pipe 223 and enters the drain pipe 225. The shunt pipes 2251 on the drain pipe 225 divide the cooling water. The nozzles 2252 on each shunt pipe 2251 spray the cooling water upward, increasing the contact area between the cooling water and the air and promoting the further heat dissipation of the cooling water. Finally, the cooling water extends into the water tank 21 through the drain pipe 225, completing a cycle of the cooling water and preparing for the next cycle, forming a complete rapid cycle cooling system. The injection molding machine body 1 includes a base 11 disposed on the ground. The top of the base 11 is fixed with an extrusion cylinder 12. Inside the extrusion cylinder 12, there is a screw 122 capable of extruding the molten material. The injection molding machine body 1 further includes a rotary drive member 121 disposed at one end of the extrusion cylinder 12 and used to drive the screw 122 to rotate.

[0031] The material required for the magnetic building block shell is put into the extrusion cylinder 12. Under the action of the heating device (not clearly mentioned in the figure but usually existing) of the extrusion cylinder 12, the material is gradually heated to the molten state. The rotary drive member 121 is started to drive the screw 122 to rotate inside the extrusion cylinder 12. When the screw 122 rotates, it generates a shearing and extrusion effect on the molten material, promoting the further plasticization of the material and conveying the molten material forward through the thread structure. When the material is conveyed to the discharge end of the extrusion cylinder 12, under a certain pressure, the molten material is extruded and injected into the mold 3 installed inside the injection molding machine body 1, and the material gradually fills the mold 3 and forms a preliminary shape of the building block shell.

[0032] The above embodiments only represent one or several implementation manners of the present utility model, and the description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the appended claims.

Claims

1. A magnetic building block injection molding machine with rapid cycle cooling, characterized in that: It includes an injection molding machine body (1) for injection molding the outer shell of magnetic building blocks; a mold (3) installed in the injection molding machine body (1) for cooling and forming the molten material into a building block shell; a cooling component (2) for passing cooling water into the mold (3) to cool the building block shell. The cooling component (2) includes a cooling tank (22) arranged outside the injection molding machine body (1). Inside the cooling tank (22), there are multiple layers of cooling pipes (223) coiled for cooling the hot cooling water. Outside the cooling pipes (223), there are heat conducting fins (2231) for heat conduction. At the top and bottom of the cooling tank (22), there are fans (222) for sucking external air into the cooling tank (22).

2. The magnetic building block injection molding machine with rapid cyclic cooling according to claim 1, wherein: The cooling pipes (223) are spirally coiled from bottom to top in multiple layers in the cooling tank (22). The cooling water is discharged from the mold (3), enters from the lower end of the cooling pipes (223), and is discharged from the upper end of the cooling pipes (223).

3. A magnetic building block injection molding machine with rapid cycle cooling according to claim 2, characterized in that: On four sides of the cooling tank (22), there are a number of through holes (221) for discharging the air inside the cooling tank (22).

4. A magnetic building block injection molding machine with rapid cycle cooling according to claim 1, characterized in that: The cooling component (2) further includes a water tank (21) arranged outside the injection molding machine body (1) for storing cooling water.

5. A magnetic building block injection molding machine for rapid cyclic cooling according to claim 1, characterized in that: The cooling component (2) further includes a water pump (226) arranged outside the injection molding machine body (1) for pumping out the cooling water in the water tank (21). The water inlet end of the water pump (226) is connected with a water inlet pipe (2261), and the water inlet pipe (2261) is connected with the water tank (21). The water outlet end of the water pump (226) is connected with a connecting pipe (2262), and the connecting pipe (2262) is connected to the mold (3). The cooling component (2) further includes a return pipe (224) connecting the mold (3) and the lower end of the cooling pipes (223). The upper end of the cooling pipes (223) is connected with a drain pipe (225), and the drain pipe (225) extends into the water tank (21).

6. A magnetic building block injection molding machine for rapid cyclic cooling according to claim 5, characterized in that: The cooling component (2) further includes a number of shunt pipes (2251) arranged on the drain pipe (225). On each shunt pipe (2251), there are a number of spray heads (2252) capable of spraying the cooling water upwards.

7. A magnetic building block injection molding machine with rapid cyclic cooling according to claim 1, characterized in that: The injection molding machine body (1) includes a base (11) arranged on the ground. At the top of the base (11), there is an extrusion cylinder (12). Inside the extrusion cylinder (12), there is a screw (122) capable of extruding the molten material. The injection molding machine body (1) further includes a rotary driving part (121) arranged at one end of the extrusion cylinder (12) for driving the screw (122) to rotate.

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