High-efficiency heat dissipation injection mold for easy core replacement

Abstract

This utility model belongs to the field of injection mold technology, and particularly relates to a high-efficiency heat-dissipating injection mold that facilitates mold core replacement. It includes a base plate, a hydraulic platform fixedly connected to the top rear side of the base plate, a hydraulic rod fixedly connected to the inner top side of the hydraulic platform, an upper mold housing fixedly connected to the output end of the hydraulic rod, a feeding assembly provided on the top of the upper mold housing, an upper mold inside the upper mold housing, and a lower mold housing fixedly connected to the top front side of the base plate, with a lower mold inside the lower mold housing. In this utility model, the mold is locked by a spring-loaded locking pin, and the mold can be replaced by pulling the connecting plate, achieving efficient injection molding and convenient mold changing. Precise mold opening and closing and material distribution ensure injection quality, the limiting and locking structure ensures stable mold installation, and the quick mold changing function reduces downtime, improving operational convenience and production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, and in particular relates to a high-efficiency heat dissipation injection mold that facilitates mold core replacement. Background Technology

[0002] Injection molds are tools used for mass production of plastic products. Molten plastic is injected into the mold cavity, and after cooling and solidification, the desired plastic product is formed. Different products often require different mold cores. At the same time, in order to ensure the smooth progress of the injection molding process and the stability of product quality, the heat dissipation system of the mold is also crucial. It can remove the heat inside the mold in time, so that the plastic can cool and solidify quickly.

[0003] Existing injection molds can guarantee the molding quality of plastic products to a certain extent through high-precision mold opening, avoiding large dimensional deviations and appearance defects. However, during the installation process, a variety of tools are required for complex positioning and fastening operations in order to accurately adjust the position of the mold core and ensure its fitting accuracy with other parts of the mold.

[0004] Traditional installation methods require bolts and nuts to fix the mold core to the mold, and the position of the mold core needs to be measured and adjusted multiple times to ensure its concentricity and perpendicularity with the cavity. This installation method not only consumes a lot of time and manpower, but also requires a high level of skill from the operators. If deviation occurs during the installation process, it will lead to mold damage or product quality degradation. At the same time, when it is necessary to replace the mold core to produce different products, the above tedious installation process must be repeated, which reduces production efficiency and increases production costs. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency heat dissipation injection mold that facilitates mold core replacement, aiming to improve the problem in the prior art where the position of the mold core needs to be measured and adjusted multiple times during installation to ensure its concentricity and perpendicularity with the cavity.

[0006] To achieve the above objectives, this utility model provides a high-efficiency heat-dissipating injection mold for easy core replacement, comprising a base plate, a hydraulic platform fixedly connected to the top rear side of the base plate, a hydraulic rod fixedly connected to the top inner side of the hydraulic platform, an upper mold housing fixedly connected to the output end of the hydraulic rod, a feeding assembly provided on the top of the upper mold housing, an upper mold housed inside the upper mold housing, a lower mold housing fixedly connected to the top front side of the base plate, and a lower mold housed inside the lower mold housing, the upper mold and the lower mold being slidably connected to the upper mold housing and the lower mold housing respectively via limiting assemblies, two mounting holes being provided on the left and right sides of the upper mold housing and the lower mold housing respectively, springs being fixedly connected inside the mounting holes, connecting plates being fixedly connected to the opposite ends of the springs, two locking pins being fixedly connected to the inner sides of the connecting plates respectively, the locking pins passing through the left and right sides of the upper mold housing and the lower mold housing respectively and engaging with the left and right sides of the upper mold and the lower mold respectively, and a heat dissipation mechanism being provided on the top of the base plate for dissipating heat from the upper mold and the lower mold.

[0007] Optionally, the heat dissipation mechanism includes two threaded mounting cylinders, which are respectively fixedly connected to the top left and right sides of the base plate. A fan is fixedly connected inside each of the two threaded mounting cylinders, and the two fans rotate in opposite directions. Threaded sleeves are threadedly connected to the outside of each of the two threaded mounting cylinders, and a filter screen is fixedly connected to the top of each of the two threaded sleeves. Two air guide grooves are formed inside the base plate, and the interiors of the two threaded mounting cylinders are respectively connected to the two air guide grooves. Flow grooves are formed on the bottom left and right sides of both the upper and lower mold housings, with the two left-end flow grooves connected to the two right-end flow grooves. Two S-shaped heat dissipation grooves are formed inside both the upper and lower mold housings, with the left ends of the multiple S-shaped heat dissipation grooves respectively connected to the two left-end flow grooves, and the right ends of the multiple flow grooves respectively connected to the two right-end flow grooves.

[0008] Optionally, the feeding assembly includes a feeding pipe, the output end of which is connected to the top of the upper mold housing. A feeding hole is provided in the middle of the inner side of the upper mold housing. The feeding pipe is connected to the feeding hole. Diverting holes are provided at the left and right ends of the bottom inner side of the feeding hole. The output ends of the two diverting holes are connected to the left and right ends of the top inner side of the upper mold.

[0009] Optionally, the limiting component includes multiple protrusions, which are respectively fixedly connected to the front and rear sides of the upper mold and the lower mold, and two limiting grooves are opened on the front and rear sides of the inner interior of the upper mold shell and the lower mold shell.

[0010] Optionally, pull plates are fixedly connected to the outer sides of the plurality of connecting plates, and the outer sides of the plurality of pull plates are all designed with an arc shape.

[0011] Optionally, multiple anti-slip strips are fixedly connected to the top and bottom of the multiple pull plates, and the exterior of the multiple anti-slip strips are designed to be anti-slip.

[0012] Optionally, sealing strips are fixedly connected to the bottom outer side of the upper mold housing and the top outer side of the lower mold housing, and the two sealing strips are in contact with each other.

[0013] Optionally, both the upper mold shell and the lower mold shell have chamfered exteriors and symmetrical designs.

[0014] The above-mentioned technical solutions in the high-efficiency heat dissipation injection mold that facilitates mold core replacement provided in this utility model embodiment have at least one of the following technical effects:

[0015] 1. In this utility model, the mold is locked by spring tensioning locking pin, and the mold can be replaced by pulling the connecting plate, which achieves the effects of efficient injection molding and convenient mold changing. Precise mold opening and closing and raw material distribution ensure the injection quality. The limiting and locking structure makes the mold installation stable. The quick mold changing function reduces downtime and improves the convenience of operation and production efficiency.

[0016] 2. In this utility model, air is driven by a fan through a threaded mounting cylinder, an air guide groove, and a flow groove into an S-shaped heat dissipation groove. The S-shaped design extends the contact time between the air and the mold. The air absorbs heat and is discharged during circulation, achieving efficient heat dissipation and cleaning and maintenance. This continuously and stably reduces the mold temperature, ensuring that the mold is at a suitable temperature during the injection molding process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A perspective view of the efficient heat dissipation injection mold for easy mold core replacement proposed in this utility model;

[0019] Figure 2 This is a front view of the high-efficiency heat dissipation injection mold for easy mold core replacement proposed in this utility model;

[0020] Figure 3 This is a structural exploded view of the lower mold in the high-efficiency heat dissipation injection mold for easy mold core replacement proposed in this utility model;

[0021] Figure 4This is a cross-sectional view of the upper mold shell in the high-efficiency heat dissipation injection mold that facilitates mold core replacement, as proposed in this utility model.

[0022] Figure 5 This is a cross-sectional view of the upper mold in the high-efficiency heat dissipation injection mold for easy mold core replacement proposed in this utility model.

[0023] Figure 6 This is a structural exploded view of the heat dissipation mechanism in the efficient heat dissipation injection mold that facilitates mold core replacement, as proposed in this utility model.

[0024] The following are the labeling elements in the figure:

[0025] 1. Base plate; 2. Heat dissipation mechanism; 201. Threaded mounting sleeve; 202. Fan; 203. Threaded sleeve; 204. Filter screen; 205. Air guide groove; 206. Flow groove; 207. S-shaped heat dissipation groove; 3. Hydraulic platform; 4. Hydraulic rod; 5. Upper mold shell; 6. Upper mold; 7. Lower mold shell; 8. Lower mold; 9. Mounting hole; 10. Spring; 11. Connecting plate; 12. Locking pin; 13. Feed pipe; 14. Feed hole; 15. Diverter hole; 16. Protrusion; 17. Limiting groove; 18. Pull plate; 19. Anti-slip strip; 20. Sealing strip. Detailed Implementation

[0026] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0030] Reference Figure 2 , Figure 3 and Figure 4 This utility model provides an embodiment of a high-efficiency heat-dissipating injection mold for easy core replacement, comprising a base plate 1, a hydraulic platform 3 fixedly connected to the top rear side of the base plate 1, a hydraulic rod 4 fixedly connected to the inner top side of the hydraulic platform 3, an upper mold housing 5 fixedly connected to the output end of the hydraulic rod 4, a feeding assembly provided on the top of the upper mold housing 5, the feeding assembly including a feeding pipe 13, the output end of the feeding pipe 13 connected to the top of the upper mold housing 5, a feeding hole 14 opened in the middle of the inner side of the upper mold housing 5, the feeding pipe 13 connected to the feeding hole 14, and diversion holes 15 opened at the left and right ends of the bottom inner side of the feeding hole 14, the output ends of the two diversion holes 15 connected to the left and right ends of the top inner side of the upper mold 6, an upper mold 6 disposed inside the upper mold housing 5, a lower mold housing 7 fixedly connected to the top front side of the base plate 1, a lower mold 8 disposed inside the lower mold housing 7, and an upper mold 6 disposed inside the upper mold housing 5. Both mold 6 and lower mold 8 are slidably connected to upper mold shell 5 and lower mold shell 7 respectively through limiting components. The limiting components include multiple protrusions 16, which are fixedly connected to the front and rear sides of upper mold 6 and lower mold 8 respectively. Two limiting grooves 17 are opened on the front and rear sides of the interior of upper mold shell 5 and lower mold shell 7. Two mounting holes 9 are opened on the left and right sides of upper mold shell 5 and lower mold shell 7 respectively. Springs 10 are fixedly connected inside the multiple mounting holes 9. Connecting plates 11 are fixedly connected to the far ends of multiple springs 10. Two locking pins 12 are fixedly connected to the inner side of multiple connecting plates 11 respectively. Multiple locking pins 12 pass through the left and right sides of upper mold shell 5 and lower mold shell 7 respectively and are respectively engaged with the left and right sides of upper mold 6 and lower mold 8. A heat dissipation mechanism 2 is provided on the top of the base plate 1. The heat dissipation mechanism 2 is used to dissipate heat from upper mold 6 and lower mold 8.

[0031] Specifically, the hydraulic platform 3, fixedly connected to the rear top of the base plate 1, is the power source for driving the upper mold. Since the lower mold is fixed, only the upper mold needs to be driven to complete the mold closing. The hydraulic rod 4, fixedly connected to the top inner side of the hydraulic platform 3, can extend and retract after receiving a control signal. When mold closing is required, the hydraulic rod 4 extends, and the upper mold housing 5, fixedly connected to its output end, moves downward, gradually approaching and finally fitting with the lower mold housing 7, fixedly connected to the front top of the base plate 1, thus completing the mold closing action. When injection molding is complete and mold opening is required, the hydraulic rod 4 retracts, driving the upper mold housing 5 upward to achieve mold opening. The mold and feeding assembly are responsible for accurately delivering the injection molding material into the mold cavity. The feed pipe 13 serves as the material inlet, and its outlet is connected to the top of the upper mold shell 5. The injection molding material enters through the feed pipe 13 and then flows downward through the feed hole 14 opened in the middle of the inner side of the upper mold shell 5. The diversion holes 15 opened at the bottom left and right ends of the inner side of the feed hole 14 can evenly distribute the material to the top left and right ends of the inner side of the upper mold 6, and then flow into the cavity formed by the upper mold 6 and the lower mold 8, ensuring that the material is evenly distributed in the cavity. The upper mold 6 and the lower mold 8 are respectively located inside the upper mold shell 5 and the lower mold shell 7. All of them are slidably connected to their respective housings through limiting components. Multiple protrusions 16 in the limiting components are fixedly connected to the front and rear sides of the upper mold 6 and the lower mold 8, respectively. The two limiting grooves 17 on the front and rear sides of the upper mold housing 5 and the lower mold housing 7 provide sliding tracks for the protrusions 16, so that the upper mold 6 and the lower mold 8 can maintain a stable positional relationship during installation and replacement, and avoid displacement. At the same time, multiple mounting holes 9 opened on the left and right sides of the upper mold housing 5 and the lower mold housing 7, springs 10 fixedly connected inside, and connecting plates 11 and locking devices fixedly connected to the ends of the springs 10 away from each other are also provided. Pin 12 serves to lock the mold. When the mold is installed in place, the elastic force of spring 10 pushes the connecting plate 11, causing the locking pin 12 to pass through the left and right sides of the upper mold shell 5 and the lower mold shell 7, and engage with the left and right sides of the upper mold 6 and the lower mold 8, firmly fixing the mold. When it is necessary to replace the mold, simply pull the connecting plate 11 outward to stretch the spring 10 and cause the locking pin 12 to disengage from the mold slot, so that the upper mold 6 and the lower mold 8 can slide out along the limiting groove 17, which can easily and quickly complete the replacement operation. This achieves firm locking and convenient replacement of the mold, and improves the overall operation convenience and production efficiency of injection molds.

[0032] Reference Figure 1 , Figure 4 , Figure 5 and Figure 6The heat dissipation mechanism 2 includes two threaded mounting cylinders 201, which are fixedly connected to the top left and right sides of the base plate 1 respectively. Fans 202 are fixedly connected inside the two threaded mounting cylinders 201, and the two fans 202 rotate in opposite directions. Threaded sleeves 203 are threadedly connected to the outside of the two threaded mounting cylinders 201, and filters 204 are fixedly connected to the top of the two threaded sleeves 203. Two air guide grooves 205 are opened inside the base plate 1, and the interiors of the two threaded mounting cylinders 201 are connected to the two air guide grooves 205 respectively. Flow grooves 206 are opened on the bottom left and right sides of the upper mold shell 5 and the lower mold shell 7. The two flow grooves 206 on the left end are connected to the two flow grooves 206 on the right end. Two S-shaped heat dissipation grooves 207 are opened inside the upper mold shell 5 and the lower mold shell 7 respectively. The left ends of the multiple S-shaped heat dissipation grooves 207 are connected to the two flow grooves 206 on the left end respectively, and the right ends of the multiple flow grooves 206 are connected to the two flow grooves 206 on the right end respectively.

[0033] Specifically, two threaded mounting cylinders 201 are fixed to the top left and right sides of the base plate 1, forming the starting point of the entire heat dissipation airflow channel. Fans 202, fixedly connected inside, are the power components driving the airflow. The two fans 202 rotate in opposite directions, ensuring effective air circulation within the mold. When the fans 202 start, they draw external air into the threaded mounting cylinders 201. A threaded sleeve 203, threaded to the outside of the threaded mounting cylinder 201, has a filter screen 204 fixedly connected to its top. The filter screen 204 filters the air entering the threaded mounting cylinder 201, preventing dust and impurities from entering the mold and causing damage. It can also be removed for cleaning by rotating the threaded sleeve 203, preventing blockages caused by long-term operation. Two air guide slots 205 inside the base plate 1 connect at one end to the inside of the threaded mounting cylinder 201 and at the other end to the flow channels 206 on the bottom left and right sides of the upper mold shell 5 and lower mold shell 7. The air drawn in by the fans 202 enters through the threaded mounting cylinders 201. Air is guided through the air guide channel 205 and then directed to the flow channel 206. The flow channels 206 on the left and right sides of the bottom of the upper mold shell 5 and the lower mold shell 7 are interconnected, allowing air to flow at the bottom of the mold. Multiple S-shaped heat dissipation channels 207 are opened inside the upper mold shell 5 and the lower mold shell 7, with one end connected to the left flow channel 206 and the other end connected to the right flow channel 206. The S-shaped design increases the airflow path in the heat dissipation channel and prolongs the contact time between the air and the inside of the mold, thereby more fully absorbing the heat of the mold. When the fan 202 is running, air enters from the threaded mounting cylinder 201, passes through the air guide channel 205 and the flow channel 206, and enters the S-shaped heat dissipation channel 207. In the S-shaped heat dissipation channel 207, the air fully exchanges heat with the inside of the mold, absorbs the heat emitted by the upper mold 6 and the lower mold 8, and then exits from the other end through the flow channel 206. This cycle repeats continuously, carrying away the heat of the mold, effectively reducing the mold temperature, and ensuring that the mold is within a suitable working temperature range during the injection molding process.

[0034] Reference Figure 1 and Figure 3 Multiple connecting plates 11 are fixedly connected to the outer side of each of the multiple connecting plates 11, and the outer side of each of the multiple connecting plates 18 is designed with an arc shape; multiple anti-slip strips 19 are fixedly connected to the top and bottom of each of the multiple connecting plates 18, and the outer side of each of the multiple anti-slip strips 19 is designed with an anti-slip shape; sealing strips 20 are fixedly connected to the outer bottom of the upper mold shell 5 and the outer top of the lower mold shell 7, and the two sealing strips 20 are in contact with each other; the outer sides of the upper mold shell 5 and the lower mold shell 7 are both designed with chamfers, and the upper mold shell 5 and the lower mold shell 7 are both designed with a symmetrical shape;

[0035] Specifically, the pull plate 18, which is fixedly connected to the outer side of the connecting plate 11, has an arc-shaped design. When it is necessary to replace the upper mold 6 and the lower mold 8, the connecting plate 11 can be pulled by holding the pull plate 18. The arc-shaped design is ergonomic, making it more comfortable for the operator to hold and easier to apply force. Multiple anti-slip strips 19 are fixedly connected to the top and bottom of the pull plate 18. Their outer side has an anti-slip design. When pulling the pull plate 18, the anti-slip strips 19 can increase the friction between the hand and the pull plate 18, preventing the hand from slipping and ensuring that the operator can pull the pull plate 18 stably and reliably, thereby stretching the spring 10 and causing the locking pin 12 to disengage from the mold slot, realizing convenient mold replacement. Sealing strips 20 are fixedly connected to the bottom outer side of the upper mold shell 5 and the top outer side of the lower mold shell 7. When the mold is closed, the two sealing strips 20 fit together to provide good sealing performance, preventing the injection molding material from leaking from the gaps in the mold during the injection process. This ensures that the injection molding material is completely filled into the mold cavity, thereby improving the quality of the injection molded product. The exterior of both the upper mold shell 5 and the lower mold shell 7 are designed with chamfers to avoid injury to operators from sharp edges during mold handling and installation. They also help prevent damage when the mold collides with surrounding equipment during use. The symmetrical design of both the upper mold shell 5 and the lower mold shell 7 makes the mold easier to process and manufacture. At the same time, it ensures the stability and balance of the mold during installation and use, and also facilitates the operation and maintenance of the mold by operators, improving work efficiency.

[0036] Working principle: The hydraulic platform 3, fixedly connected to the rear top of the base plate 1, is the power source for driving the upper mold movement. The hydraulic rod 4, fixedly connected to the top inner side of the hydraulic platform 3, can extend and retract after receiving a control signal. When mold closing is required, the hydraulic rod 4 extends, and the upper mold housing 5, fixedly connected to its output end, moves downward, gradually approaching and finally fitting with the lower mold housing 7, fixedly connected to the front top of the base plate 1, completing the mold closing action. When injection molding is complete and mold opening is required, the hydraulic rod 4 retracts, driving the upper mold housing 5 to move upward, realizing mold opening. The feeding assembly is responsible for... The injection molding material is precisely delivered into the mold cavity. The feed pipe 13 serves as the material inlet, and its outlet is connected to the top of the upper mold shell 5. The injection molding material enters through the feed pipe 13 and then flows downward through the feed hole 14 opened in the middle of the inner side of the upper mold shell 5. The diversion holes 15 opened at the bottom left and right ends of the inner side of the feed hole 14 can evenly distribute the material to the top left and right ends of the inner side of the upper mold 6, and then flow into the cavity formed by the upper mold 6 and the lower mold 8, ensuring that the material is evenly distributed in the cavity. The upper mold 6 and the lower mold 8 are respectively set in the upper mold. The upper mold 6 and lower mold 8 are both slidably connected to each other via limiting components. Multiple protrusions 16 in the limiting components are fixedly connected to the front and rear sides of the upper mold 6 and lower mold 8, respectively. Two corresponding limiting grooves 17 on the front and rear sides of the upper mold 6 and lower mold 7 provide sliding tracks for the protrusions 16, ensuring a stable positional relationship between the upper mold 6 and lower mold 8 during installation and replacement, preventing displacement. Simultaneously, multiple mounting holes 9 on the left and right sides of the upper mold 5 and lower mold 7 are internally fixedly connected... Spring 10, and connecting plate 11 and locking pin 12 fixedly connected to one end of spring 10 away from each other, play the role of locking the mold. When the mold is installed in place, the elastic force of spring 10 pushes connecting plate 11, so that locking pin 12 passes through the left and right sides of upper mold shell 5 and lower mold shell 7, and is engaged with the left and right sides of upper mold 6 and lower mold 8, firmly fixing the mold. When it is necessary to replace the mold, simply pull connecting plate 11 outward to stretch spring 10 so that locking pin 12 is disengaged from mold slot, and upper mold 6 and lower mold 8 can slide out along limiting groove 17.

[0037] Furthermore, the fan 202 fixedly connected inside the threaded mounting cylinder 201 is the power component that drives the airflow. The two fans 202 rotate in opposite directions, ensuring that the air can form an effective circulation flow inside the mold. When the fans 202 are started, they will draw external air into the threaded mounting cylinder 201. The threaded sleeve 203 connected to the threaded mounting cylinder 201 has a filter screen 204 fixedly connected to its top. The function of the filter screen 204 is to filter the air entering the threaded mounting cylinder 201, preventing dust and impurities from entering the mold and causing damage. At the same time, the filter screen can be removed and cleaned by rotating the threaded sleeve 203 to prevent blockage caused by long-term operation. The two air guide slots 205 opened inside the base plate 1 are connected at one end to the inside of the threaded mounting cylinder 201, and at the other end to the flow slots 206 on the left and right sides of the bottom of the upper mold shell 5 and the lower mold shell 7. The air drawn in by the fans 202 passes through the threaded mounting cylinder 201. Air enters the air guide 205 and is guided to the flow channel 206. The flow channels 206 on the left and right sides of the bottom of the upper mold shell 5 and the lower mold shell 7 are interconnected, allowing air to flow at the bottom of the mold. Multiple S-shaped heat dissipation channels 207 are opened inside the upper mold shell 5 and the lower mold shell 7. One end is connected to the left flow channel 206, and the other end is connected to the right flow channel 206. Due to the S-shaped design, the air flow path in the heat dissipation channel is increased, and the contact time between the air and the inside of the mold is extended, thereby more fully absorbing the heat of the mold. When the fan 202 is running, the air enters from the threaded mounting cylinder 201, passes through the air guide 205 and the flow channel 206, and enters the S-shaped heat dissipation channel 207. In the S-shaped heat dissipation channel 207, the air fully exchanges heat with the inside of the mold, absorbs the heat emitted by the upper mold 6 and the lower mold 8, and then exits from the other end through the flow channel 206, continuously carrying away the heat of the mold.

[0038] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency heat-dissipation injection mold with replaceable mold core, comprising a base plate (1), characterized in that: A hydraulic platform (3) is fixedly connected to the top rear side of the base plate (1). A hydraulic rod (4) is fixedly connected to the top inner side of the hydraulic platform (3). An upper mold shell (5) is fixedly connected to the output end of the hydraulic rod (4). A feeding assembly is provided on the top of the upper mold shell (5). An upper mold (6) is provided inside the upper mold shell (5). A lower mold shell (7) is fixedly connected to the top front side of the base plate (1). A lower mold (8) is provided inside the lower mold shell (7). The upper mold (6) and the lower mold (8) are slidably connected to the upper mold shell (5) and the lower mold shell (7) respectively through limiting assemblies. The upper mold shell (5) and the lower mold shell (7) are connected to each other. Two mounting holes (9) are provided on the left and right sides of the mold shell (7). Springs (10) are fixedly connected inside the mounting holes (9). A connecting plate (11) is fixedly connected to the opposite end of the springs (10). Two locking pins (12) are fixedly connected to the inner side of the connecting plates (11). The locking pins (12) pass through the left and right sides of the upper mold shell (5) and the lower mold shell (7) respectively and are respectively engaged with the left and right sides of the upper mold (6) and the lower mold (8). A heat dissipation mechanism (2) is provided on the top of the base plate (1). The heat dissipation mechanism (2) is used to dissipate heat from the upper mold (6) and the lower mold (8).

2. The high-efficiency heat dissipation injection mold with easy core replacement according to claim 1, characterized in that: The heat dissipation mechanism (2) includes two threaded mounting cylinders (201), which are fixedly connected to the top left and right sides of the base plate (1), respectively. A fan (202) is fixedly connected inside each of the two threaded mounting cylinders (201), and the two fans (202) rotate in opposite directions. A threaded sleeve (203) is threadedly connected to the outside of each of the two threaded mounting cylinders (201), and a filter screen (204) is fixedly connected to the top of each of the two threaded sleeves (203). Two air guide slots (205) are opened inside the base plate (1). The interior of the cylinder (201) is connected to two air guide grooves (205). The bottom left and right sides of the upper mold shell (5) and the lower mold shell (7) are provided with flow grooves (206). The two flow grooves (206) on the left end are connected to the two flow grooves (206) on the right end. The interior of the upper mold shell (5) and the interior of the lower mold shell (7) are provided with two S-shaped heat dissipation grooves (207). The left ends of the multiple S-shaped heat dissipation grooves (207) are connected to the two flow grooves (206) on the left end, and the right ends of the multiple flow grooves (206) are connected to the two flow grooves (206) on the right end.

3. The high-efficiency heat dissipation injection mold with easy core replacement according to claim 1, characterized in that: The feeding assembly includes a feeding pipe (13), the output end of which is connected to the top of the upper mold shell (5). The upper mold shell (5) has a feeding hole (14) in the middle of its inner side. The feeding pipe (13) is connected to the feeding hole (14). The bottom left and right ends of the inner side of the feeding hole (14) are provided with diversion holes (15). The output ends of the two diversion holes (15) are connected to the top left and right ends of the inner side of the upper mold (6).

4. The high-efficiency heat dissipation injection mold with easy core replacement according to claim 1, characterized in that: The limiting component includes multiple protrusions (16), which are fixedly connected to the front and rear sides of the upper mold (6) and the lower mold (8), respectively. Two limiting grooves (17) are opened on the front and rear sides of the upper mold shell (5) and the lower mold shell (7).

5. The high-efficiency heat dissipation injection mold with easy core replacement according to claim 1, characterized in that: Pull plates (18) are fixedly connected to the outer side of each of the multiple connecting plates (11), and the outer side of each of the multiple pull plates (18) adopts an arc design.

6. The high-efficiency heat dissipation injection mold with easy core replacement according to claim 5, characterized in that: Multiple anti-slip strips (19) are fixedly connected to the top and bottom of the multiple pull plates (18), and the exterior of the multiple anti-slip strips (19) are designed to be anti-slip.

7. The high-efficiency heat dissipation injection mold with easy core replacement according to claim 1, characterized in that: Sealing strips (20) are fixedly connected to the bottom outer side of the upper mold shell (5) and the top outer side of the lower mold shell (7), and the two sealing strips (20) are in contact with each other.

8. The high-efficiency heat dissipation injection mold with easy core replacement according to claim 1, characterized in that: Both the upper mold shell (5) and the lower mold shell (7) have chamfered exteriors and are symmetrical.

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