A quantitative injection mold for a mobile phone case with rapid cooling and its usage method

Abstract

The present invention relates to the technical field of mobile phone case processing, and particularly relates to a rapid cooling quantitative injection mold for mobile phone cases and its usage method, including an injection molding machine serving as the carrier of the entire device. On both sides inside the injection molding machine, there are respectively a front mold and a rear mold. A material box is installed on the injection molding machine, and a conduit for conveying raw materials is provided on the material box. An electromagnetic valve for controlling the conveying amount is provided on the conduit. A cooling mechanism for cooling the mobile phone case is provided on one side of the rear mold. A blanking mechanism for removing the mobile phone case is installed inside the injection molding machine, and a blanking port for discharging the mobile phone case is opened at the bottom of the injection molding machine. By setting the cooling mechanism, the present invention can quickly reduce the temperature of the mobile phone case to the required range, avoiding problems such as bubbles, defects, or deformation of the mobile phone case due to high temperature. This helps to improve the quality and appearance of the mobile phone case, helps to accelerate the cooling speed of the mobile phone case, achieve a more uniform cooling effect, and reduce the occurrence of deformation and defects.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile phone case processing, and specifically to a rapid cooling mobile phone case quantitative injection mold and its usage method. Background Art

[0002] The casing injection mold is a key tool for manufacturing mobile phone cases. It is usually made of mold steel and includes a mold cavity, a mold core, and other auxiliary parts. During the production of mobile phone cases, it is necessary to cool the mobile phone cases in a timely manner. However, the traditional water cooling or air cooling methods have unsatisfactory cooling effects on the injection-molded mobile phone cases. This is because during the injection process, there is a temperature difference between the inner and outer sides of the mobile phone case, resulting in a slow complete condensation speed of the mobile phone case, and there will be situations where the local temperature is too high or too low. In addition, water cooling or air cooling usually can only cool the back of the mobile phone case, while the temperature of the side decreases slowly, and it is impossible to quickly cool the mobile phone case in all directions. This may lead to a temperature difference between the back and the side of the mobile phone case, resulting in stress and deformation. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides a rapid cooling mobile phone case quantitative injection mold and its usage method, which have the advantages of being able to quickly reduce the temperature of the mobile phone case to the required range and achieving a more uniform cooling effect, and solve the problem that water cooling or air cooling usually can only cool the surface of the mobile phone case, while the internal temperature decreases slowly and it is impossible to quickly cool the mobile phone case.

[0004] To solve the above technical problems, the present invention provides the following technical solutions:

[0005] A rapid cooling mobile phone case quantitative injection mold includes an injection molding machine as the carrier of the entire device. On both sides inside the injection molding machine, there are respectively a front mold and a rear mold. A material box is installed on the injection molding machine, and a conduit for transporting raw materials is provided on the material box. An electromagnetic valve for controlling the transport volume is provided on the conduit. On one side of the rear mold, there is a cooling mechanism for cooling the mobile phone case. An unloading mechanism for removing the mobile phone case is installed inside the injection molding machine, and a blanking port for discharging the mobile phone case is opened at the bottom of the injection molding machine.

[0006] Preferably, the cooling mechanism includes a support seat fixedly installed on one side inside the injection molding machine. The rear mold is installed on the support seat. On the back of the rear mold, there are respectively a cavity a and a cavity b for gas flow. Heat conduction layers for conducting heat are provided on the inner walls of cavity a and cavity b. A plurality of flow guiding plates are inclinedly installed in cavity b, and the adjacent flow guiding plates are arranged in a staggered manner. A plurality of blade groups for dispersing gas are provided in cavity b. A transmission component for driving the adjacent blade groups to rotate in opposite directions is provided on the rear mold. A cooling tank for transporting the cooling medium is provided on the injection molding machine, and a blower for evacuating the cooling medium is provided on the injection molding machine.

[0007] Preferably, the transmission assembly includes a motor fixedly installed on the back surface of the rear mold. A transmission shaft a is fixedly connected to the output end of the motor. A connecting shaft a, a transmission shaft b, and a connecting shaft b are respectively rotatably installed on the rear mold. A belt assembly is provided between the transmission shaft a and the connecting shaft a. There are two transmission shafts b, and a belt assembly is provided between the two transmission shafts b. A belt assembly is also provided between the connecting shaft b and the upper transmission shaft b. Gears that mesh and drive are sleeved on the connecting shaft b and the connecting shaft a. Multiple blade groups are respectively sleeved on the transmission shaft b, the connecting shaft a, and the transmission shaft a.

[0008] Preferably, multiple blades are provided on the blade group, and multiple diversion holes are opened on each blade.

[0009] Preferably, the output end of the cooling tank is fixedly connected to a delivery pipe. The end of the delivery pipe is inserted into cavity b, and branch pipes are fixedly connected to both sides of the delivery pipe. The branch pipes are located in cavity a.

[0010] Preferably, a blower is fixedly installed on the injection molding machine. The output end of the blower is fixedly connected to a connecting pipe, and the ends of the connecting pipe are respectively inserted into cavity a and cavity b.

[0011] Preferably, the blanking mechanism includes an electric telescopic rod fixedly installed on the inner top wall of the injection molding machine. The bottom end of the electric telescopic rod is fixedly connected to a load-bearing plate. An electric push rod is fixedly installed on the load-bearing plate. The end of the electric push rod is fixedly connected to a housing, and a positioning assembly for fixing the mobile phone case is fixedly installed on the housing.

[0012] Preferably, the positioning assembly includes a transmission disk rotatably installed in the housing. Four brackets are fixedly connected to the housing obliquely. A support block is fixedly connected to the end of the bracket. A transmission block is hinged to the support block. A positioning block is hinged to the transmission block. A tension spring is fixedly connected between the transmission block and the positioning block. The positioning block corresponds to the corner position of the mobile phone case. A driving member for controlling the positioning block is provided on the housing.

[0013] Preferably, the driving member includes a sliding sleeve slidably connected to the bracket. A pull bar is hinged between the sliding sleeve and the transmission block. A motor is fixedly installed on the housing. The output end of the motor is fixedly connected to a transmission disk. A transmission bar is hinged between the transmission disk and the sliding sleeve. A through groove for the transmission bar to slide is opened on the housing.

[0014] A method for using a quantitative injection mold for quickly cooling a mobile phone case includes the following steps:

[0015] S1. The injection molding machine is started to close the front mold and the rear mold. Subsequently, the rear mold is opened, and raw materials are injected between the front mold and the rear mold through a pipeline, and the raw materials form the shape of a mobile phone case.

[0016] S2. Subsequently, the cooling tank injects liquid nitrogen into cavity a and cavity b respectively through the delivery pipe and the branch pipes. Subsequently, the liquid nitrogen flows from top to bottom in cavity a and cavity b respectively, and the heat conduction layer is used to cool the mobile phone case.

[0017] S3. Meanwhile, the motor starts to drive the transmission shaft a. The transmission shaft a drives the connecting shaft a to rotate through the belt assembly. The connecting shaft a drives the connecting shaft b to rotate in the opposite direction through the gear. Subsequently, the connecting shaft b drives the transmission shaft b to rotate through the belt assembly. The transmission shaft b drives another transmission shaft b to rotate through the belt assembly. The blade groups rotate respectively with the transmission shaft b, the connecting shaft a, and the transmission shaft a, causing the blade groups at adjacent positions to rotate in opposite directions, diffusing the liquid nitrogen and accelerating the flow rate of the liquid nitrogen.

[0018] S4. Subsequently, the transmission assembly starts to export the liquid nitrogen in the cavity a and the cavity b through the connecting pipe.

[0019] S5. After the injection molding is completed, the front mold resets. Subsequently, the free end of the electric telescopic rod descends, moving the load-bearing plate downward. Then, the electric push rod on the load-bearing plate pushes the outer shell to move it. Subsequently, the positioning assembly fixes the mobile phone case. Then, the electric push rod drives the outer shell to move back, and then the mobile phone case can be automatically removed. Subsequently, the mobile phone case is exported through the blanking port.

[0020] By means of the above technical solution, the present invention provides a rapid cooling mobile phone case quantitative injection mold and its use method, which at least has the following beneficial effects:

[0021] 1. For the rapid cooling mobile phone case quantitative injection mold and its use method, by setting up a cooling mechanism and using liquid nitrogen for cooling, the liquid nitrogen has an extremely low temperature and can quickly reduce the temperature of the mobile phone case to the required range, avoiding problems such as bubbles, defects, or deformation of the mobile phone case due to high temperature. This helps to improve the quality and appearance of the mobile phone case, and also helps to accelerate the cooling speed of the mobile phone case and improve production efficiency.

[0022] 2. For the rapid cooling mobile phone case quantitative injection mold and its use method, the cooling tank transports the cooling medium into the cavity a and the cavity b respectively, capable of cooling the back and side of the mobile phone case simultaneously, improving the cooling speed of the mobile phone case. Subsequently, the cooling medium flows along the flow guide plate to cool the back of the mobile phone case. By setting multiple flow guide plates distributed in a staggered manner, the contact area between the cooling medium and the mobile phone case can be increased. When the cooling medium flows along the flow guide plate, it will contact more areas on the surface of the mobile phone case, thereby improving the heat transfer efficiency and accelerating the cooling speed. Moreover, the staggered distribution of the flow guide plates can form multiple flow channels for the cooling medium in the groove, making the cooling medium evenly distributed on the entire surface of the mobile phone case. This helps to avoid local overheating or overcooling, achieve a more uniform cooling effect, and reduce the occurrence of deformation and defects.

[0023] 3. The quantitative injection mold for a rapidly cooled mobile phone case and its usage method. The blade groups rotating in opposite directions at adjacent positions can increase the convection effect, improve the cooling speed, achieve uniform temperature reduction, and control the temperature distribution by arranging the blade groups above the diversion plate and making them rotate in opposite directions at adjacent positions, thereby further improving the cooling effect and production quality of the mobile phone case.

[0024] 4. The quantitative injection mold for a rapidly cooled mobile phone case and its usage method. By setting up a blanking mechanism, the mechanical structure has a fast and precise grasping ability, and can quickly remove the mobile phone case from the mold. This can reduce the production cycle, improve production efficiency, achieve automated production, reduce manual intervention, and improve the automation level and stability of the production line.

[0025] 5. The quantitative injection mold for a rapidly cooled mobile phone case and its usage method. By setting up a blanking mechanism, the free end of the electric telescopic rod descends, moving the load-bearing plate downward. Subsequently, the electric push rod on the load-bearing plate pushes the outer shell to move it. Then, the positioning component fixes the mobile phone case, and then the electric push rod drives the outer shell to move back, and then the mobile phone case can be automatically removed. Using the mechanical structure for the removal operation can achieve automated production, reduce manual intervention, and improve the automation level and stability of the production line. Description of the Drawings

[0026] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application:

[0027] Figure 1 It is a three-dimensional structure diagram in the front view direction of the present invention;

[0028] Figure 2 It is a structure diagram of the cooling mechanism of the present invention;

[0029] Figure 3 It is a rear view cross-sectional view of the rear mold of the present invention;

[0030] Figure 4 It is a rear view structure diagram of the rear mold of the present invention;

[0031] Figure 5 It is a structure diagram of the transmission component of the present invention;

[0032] Figure 6 It is a structure diagram of the blanking mechanism of the present invention;

[0033] Figure 7 It is a structure diagram of the positioning component of the present invention;

[0034] Figure 8 For the present invention Figure 7 partial enlarged view.

[0035] Reference Signs:

[0036] 100, injection molding machine; 101, front mold; 102, rear mold; 103, blanking port; 104, electromagnetic valve;

[0037] 200, cooling mechanism; 201, cooling tank; 202, delivery pipe; 203, support base; 204, connecting pipe; 205, fan; 206, transmission assembly; 2061, motor; 2062, transmission shaft a; 2063, transmission shaft b; 2064, connecting shaft a; 2065, belt assembly; 2066, connecting shaft b; 2067, gear; 207, cavity a; 208, cavity b; 209, diversion hole; 210, branch pipe; 211, heat conduction layer; 212, diversion plate; 213, blade group;

[0038] 300, blanking mechanism; 301, electric telescopic rod; 302, load-bearing plate; 303, electric push rod; 304, outer shell; 305, positioning assembly; 3051, tension spring; 3052, motor; 3053, transmission disc; 3054, support; 3055, sliding sleeve; 3056, transmission bar; 3057, support block; 3058, tension bar; 3059, transmission block; 3060, positioning block. Specific implementation mode

[0039] 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.

[0040] Embodiment 1:

[0041] Combined with Figures 1-3As shown in the figure, a quantitative injection mold for a fast-cooling mobile phone case provided by the present invention includes an injection molding machine 100 as the carrier of the entire device. On both sides inside the injection molding machine 100, a front mold 101 and a rear mold 102 are respectively provided. A material box is installed on the injection molding machine 100. A conduit for conveying raw materials is provided on the material box. An electromagnetic valve 104 for controlling the conveying amount is provided on the conduit. On one side of the rear mold 102, a cooling mechanism 200 for cooling the mobile phone case is provided. With the setting of the cooling mechanism 200, liquid nitrogen is used for cooling. Liquid nitrogen has an extremely low temperature and can quickly reduce the temperature of the mobile phone case to the required range, avoiding problems such as bubbles, defects or deformation of the mobile phone case due to high temperature. This helps to improve the quality and appearance of the mobile phone case, helps to accelerate the cooling speed of the mobile phone case, and improves production efficiency. An unloading mechanism 300 for removing the mobile phone case is installed inside the injection molding machine 100. With the setting of the unloading mechanism 300, the mechanical structure has fast and precise grasping ability and can quickly remove the mobile phone case from the mold. This can reduce the production cycle, improve production efficiency, realize automated production, reduce manual intervention, and improve the automation degree and stability of the production line. A blanking port 103 for discharging the mobile phone case is opened at the bottom of the injection molding machine 100.

[0042] Specifically, the cooling mechanism 200 includes a support base 203 fixed to one side of the injection molding machine 100, the rear mold 102 is installed on the support base 203, and the back of the rear mold 102 is respectively provided with a cavity a207 and a cavity b208 for gas flow, the inner walls of the cavity a207 and the cavity b208 are provided with a heat conducting layer 211 for conducting heat, and a plurality of guide plates 212 are obliquely installed in the cavity b208, and the guide plates 212 at adjacent positions are staggered. The blade group 213 for dispersing the gas, the rear mold 102 is provided with a transmission component 206 for driving the adjacent blade groups 213 to rotate in opposite directions, the injection molding machine 100 is provided with a cooling tank 201 for conveying the cooling medium, the cooling medium is nitrogen or a mixture of freon and gas, the injection molding machine 100 is provided with a fan 205 for extracting the cooling medium, the cooling tank 201 conveys the cooling medium to the cavity a207 and the cavity b208 respectively, and can simultaneously perform the back and side molding of the mobile phone case. The cooling medium can increase the cooling speed of the mobile phone case, and then the cooling medium flows along the guide plate 212 to cool the back of the mobile phone case. By setting a plurality of staggered guide plates 212, the contact area between the cooling medium and the mobile phone case can be increased. When the cooling medium flows along the guide plate 212, it will contact more areas on the surface of the mobile phone case, thereby improving the heat transfer efficiency and accelerating the cooling speed. The staggered distribution of the guide plate 212 can form multiple flow channels for the cooling medium in the groove, so that the cooling medium is evenly distributed on the entire surface of the mobile phone case, which helps to avoid local temperatures being too high or too low, achieve a more uniform cooling effect, and reduce the occurrence of deformation and defects. At the same time, the blade group 213 at adjacent positions rotates in opposite directions. By setting the blade group 213 above the guide plate 212 and making the adjacent positions rotate in opposite directions, the convection effect can be increased, the cooling speed can be increased, uniform cooling can be achieved, and the temperature distribution can be controlled, thereby further improving the cooling effect and production quality of the mobile phone case.

[0043] According to the embodiment, the rotation of the blade assembly 213 can generate airflow, increasing the convection effect between the cooling medium and the surface of the phone case. This can accelerate heat transfer and improve cooling efficiency. When the cooling medium flows along the guide plate 212, it creates a cooling effect similar to that of a fan. This flow can remove heat from the surface of the phone case, accelerate the cooling process, and improve the cooling effect.

[0044] Example 2:

[0045] Combine Figure 4 and Figure 5As shown in the figure, on the basis of the first embodiment, the transmission assembly 206 includes a motor 2061 fixedly installed on the back surface of the rear mold 102. The output end of the motor 2061 is fixedly connected to a transmission shaft a 2062. A connecting shaft a 2064, a transmission shaft b 2063, and a connecting shaft b 2066 are respectively rotatably installed on the rear mold 102. A belt assembly 2065 is provided between the transmission shaft a 2062 and the connecting shaft a 2064. There are two transmission shafts b 2063, and a belt assembly 2065 is provided between the two transmission shafts b 2063. A belt assembly 2065 is also provided between the connecting shaft b 2066 and the upper transmission shaft b 2063. Meshing gears 2067 are sleeved on the connecting shaft b 2066 and the connecting shaft a 2064. Multiple blade groups 213 are respectively sleeved on the transmission shaft b 2063, the connecting shaft a 2064, and the transmission shaft a 2062. When the motor 2061 starts to drive the transmission shaft a 2062, the transmission shaft a 2062 drives the connecting shaft a 2064 to rotate through the belt assembly 2065. The connecting shaft a 2064 drives the connecting shaft b 2066 to rotate in the opposite direction through the gear 2067. Subsequently, the connecting shaft b 2066 drives the transmission shaft b 2063 to rotate through the belt assembly 2065, and the transmission shaft b 2063 drives the other transmission shaft b 2063 to rotate through the belt assembly 2065. The blade groups 213 rotate respectively along with the transmission shaft b 2063, the connecting shaft a 2064, and the transmission shaft a 2062, so that the blade groups 213 at adjacent positions rotate in opposite directions, and the rotation direction of the blade groups 213 is consistent with the inclination direction of the flow guide plate 212, which can accelerate the flow rate of the cooling medium, improve the heat absorption efficiency, and the rotation of the blade groups 213 can make the cooling medium evenly distributed in the groove, ensuring that both the surface and the inside of the mobile phone case can be evenly cooled. This helps to avoid the generation of temperature gradients on the mobile phone case and reduce the occurrence of deformation and defects.

[0046] Specifically, multiple blades are provided on the blade group 213, and multiple flow guide holes 209 are opened on the blades. The flow guide holes 209 can increase the air flow rate on the surface of the fan blades, allowing more air to flow through the fan blades. This can increase the convection effect, accelerate the heat transfer speed, and improve the cooling efficiency. Through the flow guide holes 209, the blade group 213 can introduce more cold air into the space between the cooling medium and the rear mold 102, which can increase the supply amount of the cooling medium, accelerate the heat dissipation and cooling process, and improve the cooling speed.

[0047] Further, the output end of the cooling tank 201 is fixedly connected with a delivery pipe 202. The end of the delivery pipe 202 is inserted into the cavity b 208. Two sides of the delivery pipe 202 are fixedly connected with branch pipes 210. The branch pipes 210 are located in the cavity a 207. The cooling tank 201 injects liquid nitrogen into the cavity a 207 and the cavity b 208 respectively through the delivery pipe 202 and the branch pipes 210 for cooling. The temperature of the liquid nitrogen is very low, about -196 °C. Therefore, the temperature of the object to be cooled can be quickly reduced to the required range. Compared with other cooling media, the cooling speed of the liquid nitrogen is faster and the effect is more significant.

[0048] A blower 205 is fixedly installed on the injection molding machine 100. The output end of the blower 205 is fixedly connected with a connecting pipe 204. The ends of the connecting pipe 204 are respectively inserted into the cavity a 207 and the cavity b 208. The drive assembly 206 is started to export the cooling medium in the cavity a 207 and the cavity b 208 through the connecting pipe 204, and the flow rate of the cooling medium can be increased.

[0049] According to the embodiment, by adjusting the rotation speed and direction of the blade group 213, the temperature distribution of the airflow on the surface of the mobile phone case can be controlled, which helps to meet the cooling requirements of different parts, avoid too large a temperature gradient, and improve the product quality.

[0050] Embodiment 3:

[0051] Combined with Figure 1 、 Figure 6 and Figure 7 As shown, on the basis of Embodiment 1, the blanking mechanism 300 includes an electric telescopic rod 301 fixedly installed on the inner top wall of the injection molding machine 100. The bottom end of the electric telescopic rod 301 is fixedly connected with a load-bearing plate 302. An electric push rod 303 is fixedly installed on the load-bearing plate 302. The end of the electric push rod 303 is fixedly connected with a housing 304. A positioning assembly 305 for fixing the mobile phone case is fixedly installed on the housing 304. After the injection molding is completed, the front mold 101 is reset. Subsequently, the free end of the electric telescopic rod 301 descends to move the load-bearing plate 302 downward. Subsequently, the electric push rod 303 on the load-bearing plate 302 pushes the housing 304 to move. Subsequently, the positioning assembly 305 fixes the mobile phone case. Then, the electric push rod 303 drives the housing 304 to move back, and then the mobile phone case can be automatically removed. Using a mechanical structure for the removal operation can achieve automated production, reduce manual intervention, and improve the automation degree and stability of the production line.

[0052] Specifically, the positioning component 305 includes a transmission disk 3053 rotatably installed inside the housing 304. Four brackets 3054 are fixedly connected to the housing 304 obliquely. A support block 3057 is fixedly connected to the end of the bracket 3054. A transmission block 3059 is hinged to the support block 3057. A positioning block 3060 is hinged to the transmission block 3059. A tension spring 3051 is fixedly connected between the transmission block 3059 and the positioning block 3060. The positioning block 3060 corresponds to the corner position of the mobile phone case. A driving member for controlling the positioning block 3060 is provided on the housing 304. The driving member lowers the transmission block 3059, and then the positioning block 3060 contacts the corner of the mobile phone case. Subsequently, the mobile phone case can be removed from the four corners simultaneously. By removing the mobile phone case from the four corners, the impact and wear on the mold can be reduced. Compared with other methods, such as removing from the middle or side, removing the mobile phone case from the four corners can disperse the force more evenly and reduce the damage to the mold.

[0053] Embodiment 4:

[0054] Combined with Figure 7 and Figure 8 As shown, on the basis of Embodiment 1, the driving member includes a sliding sleeve 3055 slidably connected to the bracket 3054. A pull bar 3058 is hinged between the sliding sleeve 3055 and the transmission block 3059. A motor 3052 is fixedly installed on the housing 304. The output end of the motor 3052 is fixedly connected to the transmission disk 3053. A transmission bar 3056 is hinged between the transmission disk 3053 and the sliding sleeve 3055. A through groove for the transmission bar 3056 to slide is opened on the housing 304. When the motor 3052 is started to drive the transmission disk 3053 to rotate, the transmission disk 3053 rotates to pull the sliding sleeve 3055 to descend through the transmission bar 3056. The sliding sleeve 3055 descends to pull the transmission block 3059 to open through the pull bar 3058. Subsequently, the positioning block 3060 can be pushed to the front of the mobile phone case. Then the transmission disk 3053 flips, and the pull bar 3058 does not apply a pulling force to the transmission block 3059. Subsequently, the positioning block 3060 descends to contact the corner position of the mobile phone case. Then the positioning block 3060 moves back, and then the mobile phone case can be removed from the front mold 101. The positioning block 3060 can precisely control the force when removing the mobile phone case, avoiding damage to the mobile phone case, which helps to maintain the integrity and appearance quality of the mobile phone case.

[0055] A method for using a rapid cooling mobile phone case quantitative injection mold includes the following steps:

[0056] S1. The injection molding machine 100 is started to close the front mold 101 and the rear mold 102. Subsequently, the electromagnetic valve 104 is opened, and the raw material is injected between the front mold 101 and the rear mold 102 through the pipeline, and the raw material forms the shape of the mobile phone case;

[0057] S2. The cooling tank 201 injects the cooling medium into the cavity a207 and the cavity b208 through the delivery pipe 202 and the branch pipe 210 respectively. Subsequently, the cooling medium flows downward in the cavity a207 and the cavity b208 respectively, and the heat conducting layer 211 is used to cool the mobile phone case.

[0058] S3. At the same time, the motor 2061 starts to drive the transmission shaft a2062. The transmission shaft a2062 drives the connecting shaft a2064 to rotate through the belt assembly 2065. The connecting shaft a2064 drives the connecting shaft b2066 to rotate in the opposite direction through the gear 2067. Subsequently, the connecting shaft b2066 drives the transmission shaft b2063 to rotate through the belt assembly 2065. The transmission shaft b2063 drives another transmission shaft b2063 to rotate through the belt assembly 2065. The blade groups 213 rotate with the transmission shaft b2063, the connecting shaft a2064 and the transmission shaft a2062 respectively, so that the blade groups 213 at adjacent positions rotate in opposite directions, diffusing the cooling medium and accelerating the flow rate of the cooling medium.

[0059] S4. The transmission assembly 206 starts and exports the cooling medium in the cavity a207 and the cavity b208 through the connecting pipe 204.

[0060] S5. After the injection molding is completed, the front mold 101 resets. Subsequently, the free end of the electric telescopic rod 301 descends, moving the load-bearing plate 302 downward. Subsequently, the electric push rod 303 on the load-bearing plate 302 pushes the outer shell 304 to move it. Subsequently, the positioning assembly 305 fixes the mobile phone case. Then, the electric push rod 303 drives the outer shell 304 to move back, and then the mobile phone case can be automatically removed. Subsequently, the mobile phone case is exported through the blanking port 103.

[0061] It should be noted that the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0062] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to 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 quantitative injection mold for a mobile phone case with rapid cooling, comprising an injection molding machine (100) serving as the carrier of the entire device. On both sides inside the injection molding machine (100), there are respectively a front mold (101) and a rear mold (102). A material box is installed on the injection molding machine (100), and a conduit for conveying raw materials is provided on the material box. An electromagnetic valve (104) for controlling the conveying amount is provided on the conduit, and it is characterized in that: On one side of the rear mold (102), a cooling mechanism (200) for cooling the mobile phone case is provided. An unloading mechanism (300) for removing the mobile phone case is installed in the injection molding machine (100), and a material unloading port (103) for discharging the mobile phone case is opened at the bottom of the injection molding machine (100). The cooling mechanism (200) includes a support seat (203) fixedly installed on one side inside the injection molding machine (100). The rear mold (102) is installed on the support seat (203). On the back of the rear mold (102), a gas flow cavity a (207) and a cavity b (208) are respectively opened. Heat conduction layers (211) for conducting heat are provided on the inner walls of the cavity a (207) and the cavity b (208). A plurality of flow guide plates (212) are inclinedly installed in the cavity b (208), and the adjacent flow guide plates (212) are arranged in a staggered manner. A plurality of blade groups (213) for dispersing gas are provided in the cavity b (208). A transmission component (206) for driving the adjacent blade groups (213) to rotate in opposite directions is provided on the rear mold (102). A cooling tank (201) for conveying a cooling medium is provided on the injection molding machine (100), and a blower (205) for evacuating the cooling medium is provided on the injection molding machine (100). The transmission component (206) includes a motor (2061) fixedly installed on the back of the rear mold (102). The output end of the motor (2061) is fixedly connected to a transmission shaft a (2062). A connecting shaft a (2064), a transmission shaft b (2063), and a connecting shaft b (2066) are respectively rotatably installed on the rear mold (102). A belt assembly (2065) is provided between the transmission shaft a (2062) and the connecting shaft a (2064). There are two transmission shafts b (2063), and a belt assembly (2065) is provided between the two transmission shafts b (2063). A belt assembly (2065) is also provided between the connecting shaft b (2066) and the upper transmission shaft b (2063). Gears (2067) engaged in transmission are sleeved on the connecting shaft b (2066) and the connecting shaft a (2064). A plurality of blade groups (213) are respectively sleeved on the transmission shaft b (2063), the connecting shaft a (2064), and the transmission shaft a (2062).

2. The rapid cooling mobile phone case quantitative injection mold according to claim 1, wherein: A plurality of blades are provided on the blade group (213), and a plurality of flow guide holes (209) are opened on the blades.

3. The rapid cooling mobile phone case quantitative injection mold according to claim 1, characterized in that: The output end of the cooling tank (201) is fixedly connected to a delivery pipe (202). The end of the delivery pipe (202) is inserted into the cavity b (208). Branches (210) are fixedly connected to both sides of the delivery pipe (202), and the branches (210) are located in the cavity a (207).

4. The quick-cooling mobile phone case quantitative injection mold according to claim 1, wherein: A blower (205) is fixedly installed on the injection molding machine (100). The output end of the blower (205) is fixedly connected to a connecting pipe (204), and the ends of the connecting pipe (204) are respectively inserted into the cavity a (207) and the cavity b (208).

5. The quick-cooling mobile phone case quantitative injection mold according to claim 1, wherein: The blanking mechanism (300) includes an electric telescopic rod (301) fixedly installed on the inner top wall of the injection molding machine (100). The bottom end of the electric telescopic rod (301) is fixedly connected with a load-bearing plate (302). An electric push rod (303) is fixedly installed on the load-bearing plate (302). The end of the electric push rod (303) is fixedly connected with a housing (304). A positioning assembly (305) for fixing the mobile phone case is fixedly installed on the housing (304).

6. The quick-cooling mobile phone case quantitative injection mold according to claim 5, characterized in that: The positioning assembly (305) includes a transmission disk (3053) rotatably installed in the housing (304). Four brackets (3054) are fixedly and obliquely installed on the housing (304). The end of the bracket (3054) is fixedly connected with a support block (3057). A transmission block (3059) is hinged to the support block (3057). A positioning block (3060) is hinged to the transmission block (3059). A tension spring (3051) is fixedly connected between the transmission block (3059) and the positioning block (3060). The positioning block (3060) corresponds to the corner position of the mobile phone case. A driving member for controlling the positioning block (3060) is provided on the housing (304).

7. The quick-cooling mobile phone case quantitative injection mold according to claim 6, characterized in that: The driving member includes a sliding sleeve (3055) slidably connected to the bracket (3054). A pull bar (3058) is hinged between the sliding sleeve (3055) and the transmission block (3059). A motor (3052) is fixedly installed on the housing (304). The output end of the motor (3052) is fixedly connected with the transmission disk (3053). A transmission bar (3056) is hinged between the transmission disk (3053) and the sliding sleeve (3055). A through groove for the transmission bar (3056) to slide is formed on the housing (304).

8. A method for using a quantitative injection mold for a fast-cooling mobile phone case according to any one of claims 1-7, characterized in that, It includes the following steps: S1. The injection molding machine (100) is started to close the front mold (101) and the rear mold (102). Subsequently, the electromagnetic valve (104) is opened, and the raw material is injected between the front mold (101) and the rear mold (102) through a pipeline, and the raw material forms the shape of a mobile phone case; S2. Subsequently, the cooling tank (201) injects the cooling medium into the cavity a (207) and the cavity b (208) respectively through the delivery pipe (202) and the branch pipe (210). Subsequently, the cooling medium flows from top to bottom in the cavity a (207) and the cavity b (208) respectively, and the heat conducting layer (211) is used to cool the mobile phone case; S3. Meanwhile, the motor (2061) starts to drive the transmission shaft a (2062). The transmission shaft a (2062) drives the connecting shaft a (2064) to rotate through the belt assembly (2065). The connecting shaft a (2064) drives the connecting shaft b (2066) to rotate in the opposite direction through the gear (2067). Subsequently, the connecting shaft b (2066) drives the transmission shaft b (2063) to rotate through the belt assembly (2065). The transmission shaft b (2063) drives another transmission shaft b (2063) to rotate through the belt assembly (2065). The blade groups (213) rotate respectively with the transmission shaft b (2063), the connecting shaft a (2064) and the transmission shaft a (2062), so that the blade groups (213) at adjacent positions rotate in opposite directions, diffusing the cooling medium and accelerating the flow rate of the cooling medium; S4. Subsequently, the transmission assembly (206) starts and exports the cooling medium in the cavity a (207) and the cavity b (208) through the connecting pipe (204); S5. After the injection molding is completed, the front mold (101) resets. Subsequently, the free end of the electric telescopic rod (301) descends, moving the load-bearing plate (302) downward. Subsequently, the electric push rod (303) on the load-bearing plate (302) pushes the outer shell (304) to move it. Subsequently, the positioning assembly (305) fixes the mobile phone case. Then, the electric push rod (303) drives the outer shell (304) to move back, and then the mobile phone case can be automatically removed. Subsequently, the mobile phone case is exported through the blanking port (103).

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