Mould matching device for injection molding of network jumper wire

Abstract

The invention discloses a network jumper wire injection molding mold matching device, and relates to the field of jumper wire injection molding production, the network jumper wire injection molding mold matching device comprises a lower mold machine base and an upper mold machine frame, the upper mold machine frame is arranged above the lower mold machine base, the upper mold machine frame has the freedom degree of moving in the height direction of the lower mold machine base, and a lower mold is installed on the lower mold machine base; the upper mold rack is provided with an upper mold, the upper mold and the lower mold are assembled and disassembled through the movement of the upper mold rack, and the bottom of the lower mold is provided with an injection molding pipe orifice; the injection molding device further comprises a metal hose, one end of the metal hose is connected with an injection molding discharging port of an injection molding machine, the other end of the metal hose is detachably connected with an injection molding pipe opening, indirect butt joint of the injection molding discharging port and the injection molding pipe opening is completed through the metal hose, and compared with a traditional direct butt joint mode, butt joint time is greatly shortened, and even if molds of different sizes are replaced, the butt joint efficiency is greatly improved. And manual repeated position and angle calibration is not needed, so that the production preparation efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of jumper injection molding production, specifically to a network jumper injection molding device. Background Technology

[0002] In today's rapidly developing network communication technology, network patch cords, as a crucial component for connecting network devices, directly impact the stability of network communication and the industry's production efficiency through their quality and manufacturing efficiency. In the production process of network patch cords, injection molding is a key step in ensuring the stability and protection of its terminal connection components. Currently, most traditional network jumper injection molding assembly devices directly connect the injection outlet of the injection molding machine to the injection port of the mold. This direct connection method has many hidden dangers in actual operation. Due to the lack of effective auxiliary positioning and fastening structures, the axes of the two are easily misaligned during the connection process, resulting in excessively large gaps. During injection, molten plastic will overflow from the gaps, causing material waste and contaminating the equipment and working environment. Moreover, with changes in injection pressure, the direct connection interface is prone to loosening, which not only affects the continuity of injection but may also allow air to enter the injection channel, forming bubbles inside the product and reducing its strength and insulation performance. Furthermore, during the production process, molds often need to be changed according to different production requirements. Due to the diverse sizes and specifications of the molds, when using a direct docking method, operators need to spend a significant amount of time readjusting the position and angle of the injection outlet and injection tube after each mold change to ensure a smooth connection. This not only requires repeated calibration but may also result in multiple adjustments due to human error, greatly extending production preparation time and reducing overall production efficiency. At the same time, manual direct docking is not only inefficient and unable to meet the needs of large-scale production, but it is also prone to loose connections, leading to material leakage during injection molding, affecting product quality, and increasing the scrap rate. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a network jumper injection molding device to solve the deficiencies of the prior art.

[0004] The objective of this invention is achieved through the following technical solution: a network jumper injection molding device, comprising a lower mold base and an upper mold frame, wherein the upper mold frame is disposed above the lower mold base and has a degree of freedom to move along the height direction of the lower mold base; a lower mold is mounted on the lower mold base and an upper mold is mounted on the upper mold frame; the movement of the upper mold frame enables the upper mold and lower mold to be closed and separated; and an injection port is provided at the bottom of the lower mold. It also includes a metal hose, one end of which is connected to the injection outlet of the injection molding machine, and the other end is detachably connected to the injection port.

[0005] Furthermore, it also includes an automatic docking mechanism, which includes a transverse base plate, a longitudinal base, and a lifting platform. The transverse base plate is disposed on the lifting platform, and the lifting platform has a degree of freedom to move along the height direction of the lower mold base. Both the transverse base plate and the longitudinal base have a degree of freedom to move in the horizontal direction. The direction of movement of the transverse base plate is perpendicular to the direction of movement of the longitudinal base plate. The longitudinal base plate is disposed on the transverse base plate, and the metal flexible hose is installed on the longitudinal base plate.

[0006] Furthermore, a quick connector is fixed to one end of the metal hose away from the injection outlet. The quick connector is mounted on a longitudinal base and has a mating hole for connecting the metal hose. Multiple insertion blocks are provided on the inner wall of the mating hole, and the insertion blocks are evenly distributed around the circumference of the mating hole. The insertion blocks have the freedom to move radially along the mating hole. An annular mating groove is provided on the outer wall of the injection outlet. The annular mating groove is coaxial with the injection outlet. When the injection outlet is assembled in the mating hole of the quick connector, one end of the insertion block is inserted into the annular mating groove.

[0007] Furthermore, the outer wall of the quick connector has an installation groove with a connecting hole at the location of the plug block. The plug block is slidably adapted to the installation groove. A movable plate is fixed to the end of the plug block away from the connecting hole. The movable plate is located on the outside of the quick connector. A high-temperature resistant spring is sleeved on the plug block. One end of the high-temperature resistant spring is connected to the movable plate, and the other end is connected to the outer wall of the quick connector.

[0008] Furthermore, the top of the plug block away from the moving plate is provided with a wedge-shaped surface, which is located on the moving path of the injection nozzle.

[0009] Furthermore, each of the movable plates is equipped with a cylinder, the cylinder body of which is horizontally mounted on a longitudinal base, and a lever is connected to the telescopic shaft of the cylinder. The lever is located between the movable plate and the quick connector, and the movable plate is located on the moving path of the lever.

[0010] Furthermore, the mating hole is a stepped hole, which consists of a large-diameter hole and a small-diameter hole in sequence along the direction close to the metal hose. The injection tube opening is adapted to the large-diameter hole, and a high-temperature resistant sealing ring is fixed on the step formed by the large-diameter hole and the small-diameter hole. The injection tube opening deforms when it squeezes the high-temperature resistant sealing ring.

[0011] Furthermore, two horizontal linear drive modules are arranged in parallel on the lifting platform. The two ends of the horizontal base plate are respectively mounted on the slides of the two horizontal linear drive modules. A vertical linear drive module is mounted on the horizontal base plate, and the vertical base is mounted on the slide of the vertical linear drive module.

[0012] Furthermore, a docking cylinder is vertically installed below the lifting platform, and the telescopic shaft of the docking cylinder is connected to the lifting platform.

[0013] Furthermore, a mold cylinder is vertically mounted on the upper mold frame, and the telescopic shaft of the mold cylinder is connected to the upper mold mounting plate. The upper mold is mounted on the upper mold mounting plate by bolts. A mold groove is opened on the lower mold base, and the lower mold is installed in the mold groove. A mating interface for the injection tube to pass through is opened at the bottom of the mold groove.

[0014] The beneficial effects of this invention are: 1. Through the coordinated operation of the transverse base plate, longitudinal base, and lifting platform of the automatic docking mechanism, automated and precise docking of the metal hose and the injection nozzle is achieved. The lifting platform can move along the height of the lower mold base, while the transverse base plate and longitudinal base move horizontally and perpendicularly to each other. This allows for quick and precise adjustment of the metal hose's position, significantly reducing docking time compared to traditional direct docking methods. Even when changing molds of different sizes, there is no need for repeated manual calibration of the position and angle, greatly improving production preparation efficiency.

[0015] 2. Multiple insert blocks, evenly distributed around the circumference of the mating hole and capable of radial movement, are inserted into the annular mating groove during injection molding nozzle assembly. Combined with the elasticity of the high-temperature resistant spring, they can securely connect, prevent the interface from loosening, ensure the continuity of the injection molding process, and avoid material waste and product defects caused by interface problems.

[0016] 3. The mating hole adopts a stepped hole design. The large-diameter hole is adapted to the injection tube opening. The high-temperature resistant sealing ring at the step is deformed under the pressure of the injection tube opening, forming a good sealing effect. This effectively prevents the plastic melt from overflowing and air from entering the injection channel during injection, avoids air bubbles inside the product, and improves the product's strength and insulation performance.

[0017] 4. The automated operation of the automatic docking mechanism and mold cylinder reduces manual intervention and operational errors. This not only improves the precision control of the docking and injection molding process but also meets the needs of large-scale production, further improving overall production efficiency, reducing production costs, and enhancing the product's competitiveness in the market. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a network jumper injection molding device according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a network jumper injection molding device according to the present invention. Figure 2 ; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the automatic docking mechanism in a network jumper injection molding assembly device according to the present invention; Figure 5 for Figure 4 Enlarged view at point B in the middle; Figure 6 This is a schematic diagram of the assembly of the injection nozzle and the automatic docking mechanism in a network jumper injection molding assembly device of the present invention. Figure 7 for Figure 6 Enlarged view at point C; In the diagram, 1-lower mold base, 2-upper mold frame, 3-lower mold, 4-upper mold, 5-injection nozzle, 6-metal hose, 7-transverse base plate, 8-longitudinal base, 9-lifting platform, 10-quick connector, 11-button hole, 12-plug block, 13-annular butt groove, 14-mounting groove, 15-moving plate, 16-high temperature resistant spring, 17-wedge surface, 18-cylinder, 19-paddle plate, 20-high temperature resistant sealing ring, 21-transverse linear drive module, 22-longitudinal linear drive module, 23-button cylinder, 24-mold cylinder, 25-upper mold mounting plate, 26-mold groove, 27-fine adjustment ring, 28-telescopic rod, 29-fine adjustment spring, 30-fine adjustment head. Detailed Implementation

[0019] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0020] Example 1 like Figures 1 to 7As shown, a network jumper injection molding device includes a lower mold base 1 and an upper mold frame 2. The upper mold frame 2 is positioned above the lower mold base 1 and has the freedom to move along the height direction of the lower mold base 1. A lower mold 3 is mounted on the lower mold base 1, and an upper mold 4 is mounted on the upper mold frame 2. The movement of the upper mold frame 2 enables the upper mold 4 and the lower mold 3 to close and separate. The bottom of the lower mold 3 is provided with an injection nozzle 5. A mold cylinder 24 is vertically mounted on the upper mold frame 2. The telescopic shaft of the mold cylinder 24 is connected to an upper mold mounting plate 25. The upper mold 4 is mounted on the upper mold mounting plate 25 by bolts. A mold groove 26 is opened on the lower mold base 1, and the lower mold 3 is installed in the mold groove 26. The bottom of the groove 26 has an interface for the injection nozzle 5 to pass through. The lower mold base 1, as the basic supporting component of the device, has a mold groove 26 designed to provide precise positioning and installation space for the lower mold. The interface ensures that the injection nozzle 5 can smoothly connect to the injection outlet of the injection molding machine. The upper mold frame 2 moves the upper mold 4 up and down through the extension and retraction of the mold cylinder 24, thereby completing the mold closing and opening actions with the lower mold 3. Its design is based on the principle of mechanical transmission, ensuring the stability and accuracy of the mold opening and closing process. In use, the lower mold 3 is precisely placed into the groove 26 using its limiting function, ensuring that the injection nozzle 5 at the bottom of the lower mold 3 passes through the interface, preparing for the subsequent delivery of injection materials. Next, the upper mold mounting plate 25 is connected to the upper mold frame 2 through the extension shaft of the mold cylinder 24. The upper mold 4 is then securely installed on the upper mold mounting plate 25 using bolts, completing the basic installation of the mold part and laying the foundation for the entire injection molding process.

[0021] Example 2 Based on Example 1, such as Figures 1 to 5As shown, it also includes a metal hose 6, one end of which is connected to the injection outlet of the injection molding machine, and the other end is detachably connected to the injection port 5. It also includes an automatic docking mechanism, which comprises a transverse base plate 7, a longitudinal base 8, and a lifting platform 9. The transverse base plate 7 is mounted on the lifting platform 9, which has a degree of freedom to move along the height direction of the lower mold base 1. Both the transverse base plate 7 and the longitudinal base 8 have a degree of freedom to move horizontally, with the direction of movement of the transverse base plate 7 perpendicular to the direction of movement of the longitudinal base 8. The longitudinal base 8 is mounted on the transverse base plate 7, and the metal hose 6 is mounted on the longitudinal base 8. This avoids the traditional method of directly connecting the injection outlet and the injection port 5, instead achieving indirect docking of the injection outlet and the injection port 5 through the metal hose 6. One end of the metal hose 6 is directly connected to... On the injection outlet, the other end is detachably connected to the injection port 5. Due to different molds, the position of the injection port 5 is also different. The length of the metal hose 6 can meet the position of the injection port 5 of different molds and can adapt to the injection docking of different molds. Since the metal hose 6 continuously conveys injection material, its surface temperature is very high, making manual docking impossible. Therefore, an automatic docking mechanism is set up. According to the position of the injection port 5 on the mold, the position of the metal hose 6 is adjusted on the horizontal plane. That is, the movement of the transverse base plate 7 and the longitudinal base 8 makes the metal hose 6 coaxially correspond to the injection port 5. Finally, the lifting platform 9 drives the metal hose 6 to move upward and dock with the injection port 5 to complete the docking. The automatic docking of the metal hose 6 and the injection port 5 is achieved without manual operation, which improves the completeness of the injection docking.

[0022] Furthermore, two horizontal linear drive modules 21 are arranged in parallel on the lifting platform 9. The two ends of the horizontal base plate 7 are respectively installed on the slides of the two horizontal linear drive modules 21. A vertical linear drive module 22 is installed on the horizontal base plate 7, and a vertical base 8 is installed on the slide of the vertical linear drive module 22. A docking cylinder 23 is vertically arranged below the lifting platform 9. The telescopic shaft of the docking cylinder 23 is connected to the lifting platform 9. The horizontal base plate 7 is moved by the horizontal linear drive module 21, and the vertical base 8 is moved by the vertical linear drive module 22. The moving direction of the horizontal linear drive module 21 is perpendicular to the moving direction of the vertical linear drive module 22, so as to accurately adjust the horizontal position of the metal hose 6 to adapt to the position of different injection nozzles 5. Finally, the lifting platform 9 is moved upward by the docking cylinder 23 to achieve precise docking of the metal hose 6 and the injection nozzle 5.

[0023] Example 3 Based on Example 2, such as Figures 1 to 7As shown, a quick connector 10 is fixed to the end of the metal hose 6 away from the injection outlet. The quick connector 10 is mounted on the longitudinal base 8 and has a mating hole 11 for connecting the metal hose 6. Multiple insertion blocks 12 are provided on the inner wall of the mating hole 11, evenly distributed around the circumference of the mating hole 11. The insertion blocks 12 have the freedom to move radially along the mating hole 11. An annular mating groove 13 is provided on the outer wall of the injection port 5, coaxial with the injection port 5. When the injection port 5 is assembled with the quick connector 10... When the quick connector 10 is inserted into the mating hole 11, one end of the plug-in block 12 is inserted into the annular mating groove 13. The outer wall of the quick connector 10 has a mounting groove 14 communicating with the mating hole 11 at the location where the plug-in block 12 is set. The plug-in block 12 slides within the mounting groove 14. A movable plate 15 is fixed to the end of the plug-in block 12 away from the mating hole 11. The movable plate 15 is located on the outside of the quick connector 10. A high-temperature resistant spring 16 is fitted onto the plug-in block 12. One end of the high-temperature resistant spring 16 is connected to the movable plate 15, and the other end is connected to the outer wall of the quick connector 10. The top of the end of the quick connector 10 away from the moving plate 15 is provided with a wedge-shaped surface 17. The wedge-shaped surface 17 is located on the moving path of the injection port 5. After the position of the metal hose 6 is adjusted, the quick connector 10 is coaxially arranged with the injection port 5. Then, the docking cylinder 23 drives the metal hose 6 upward to dock with the injection port 5. During docking, under the elastic force of the high-temperature spring 16, the insertion block 12 of the quick connector 10 initially protrudes into the docking hole 11. When the injection port 5 is inserted into the docking hole 11, the injection port 5 will... The force acts on the wedge-shaped surface 17, which serves as a guide. As the injection nozzle 5 penetrates deeper, its outer wall presses against the plug-in block 12, causing the high-temperature resistant spring 16 to move away from the injection nozzle 5. When the injection nozzle 5 and the quick connector 10 are aligned, the annular mating groove 13 aligns with the plug-in block 12. At this point, the plug-in block 12, under the reaction force of the high-temperature resistant spring 16, inserts into the annular mating groove 13, achieving mechanical locking and ensuring a stable connection between the injection nozzle 5 and the metal hose 6, preventing detachment during injection molding. Specifically, the high-temperature resistant spring 16 is made of nickel-chromium alloy, which possesses excellent high-temperature strength and oxidation resistance. Its internal atomic structure is stable, and the interatomic bonding force remains strong at high temperatures, effectively resisting lattice distortion and grain growth caused by high temperatures, thus maintaining the spring's elasticity and shape stability. During injection molding, even when exposed to high temperatures for extended periods, the high-temperature resistant spring made of nickel-chromium alloy will not exhibit significant elastic decay or plastic deformation.

[0024] Example 4 Based on Example 3, such as Figures 1 to 5As shown, each movable plate 15 is equipped with a cylinder 18. The cylinder body of the cylinder 18 is horizontally mounted on the longitudinal base 8. The telescopic shaft of the cylinder 8 is connected to a lever 19. The lever 19 is located between the movable plate 15 and the quick connector 10. The movable plate 15 is located on the moving path of the lever 19. When the plug block 12 is inserted into the annular docking groove 13, the lever 19 and the movable plate 15 are separated, which does not affect the docking stability of the quick connector 10 and the injection port 5. When it is necessary to change the mold, the quick connector 10 must first be separated from the injection port 5, then the mold must be changed, and finally... When the metal hose 6 is connected to the injection port of the replaced mold, the cylinder 18 drives the lever 19 to move closer to the moving plate 15. The lever 19 drives the moving plate 15 to move away from the quick connector 10, thereby stretching the high-temperature spring 16 and driving the plug block 12 away from the injection port 5. At this time, the plug block 12 disengages from the annular docking groove 13. Then, the docking cylinder 23 drives the metal hose 6 to move downward, so that the quick connector 10 can be separated from the injection port 5, achieving the effect of automatic disassembly, improving the efficiency of mold replacement and subsequent mold matching.

[0025] Example 5 Based on Embodiment 4, the mating hole 11 is a stepped hole, with a large-diameter hole and a small-diameter hole arranged sequentially along the direction close to the metal flexible tube 6. The injection port 5 is adapted to the large-diameter hole, and a high-temperature resistant sealing ring 20 is fixed on the step formed by the large-diameter hole and the small-diameter hole. The injection port 5 compresses the high-temperature resistant sealing ring 20 to produce deformation. When the injection port 5 and the quick connector 10 are connected, the bottom of the injection port 5 will compress the high-temperature resistant sealing ring 20 to produce deformation, thereby forming a high-strength sealing surface at the connection position between the injection port 5 and the quick connector 10. This effectively ensures stable injection pressure, prevents the plastic melt from leaking from the interface, and avoids air entering the mold cavity, ensuring the molding quality of the network jumper product.

[0026] Example 6 Since errors are unavoidable, the movement error of the linear drive module and the processing error of the injection molding nozzle cause a deviation in the mating position of the quick connector 10, resulting in the quick connector 10 failing to smoothly mate with the injection molding nozzle 5. Therefore, based on Embodiment 5, as follows... Figures 1 to 7As shown, a fine-tuning ring 27 is fixed to the side wall of the longitudinal base 8. The quick connector 10 coaxially passes through the fine-tuning ring 27. Multiple elastic telescopic mechanisms are provided between the fine-tuning ring 27 and the quick connector 10. These mechanisms are evenly distributed around the circumference of the fine-tuning ring 27. Each elastic telescopic mechanism includes a telescopic rod 28 and a fine-tuning spring 29. One end of the telescopic rod 28 is connected to the inner wall of the fine-tuning ring 27, and the other end is connected to the outer wall of the quick connector 10. The fine-tuning spring 29 is sleeved on the telescopic rod 28. A fine-tuning head 30 is coaxially fixed to the top of the quick connector 10. The inner diameter of the fine-tuning head 30 gradually increases in the direction away from the quick connector 10. The minimum inner diameter of the fine-tuning head 30 is equal to the large-diameter hole, and the inner hole of the fine-tuning head 30 communicates with the mating hole 11, so that the quick connector 10 and the injection molding... There is a docking error in the nozzle 5, but this error is within the range of the inner hole of the fine-adjusting head 30. When the quick connector 10 moves upward and docks with the injection nozzle 5, the injection nozzle 5 abuts against the inclined surface of the inner hole of the fine-adjusting head 30. Under the guidance of the inclined surface, the quick connector 10 is connected to the elastic telescopic mechanism for corresponding extension and retraction, thereby fine-tuning the position of the quick connector 10. As the quick connector 10 continues to move, its position is continuously adjusted so that the injection nozzle 5 can be smoothly inserted into the docking hole 11, completing the precise docking of the injection nozzle 5 and the quick connector 10. This avoids the influence of error and completes the smooth docking of the injection nozzle 5 and the quick connector 10. To ensure that the quick connector 10 and the injection nozzle 5 can be smoothly separated, the cylinder body of the cylinder 18 is installed on the fine-adjusting ring 27.

Claims

1. A network patch cord injection molding assembly device, characterized in that, It includes a lower mold base (1) and an upper mold frame (2). The upper mold frame (2) is located above the lower mold base (1). The upper mold frame (2) has the freedom to move along the height direction of the lower mold base (1). A lower mold (3) is installed on the lower mold base (1). An upper mold (4) is installed on the upper mold frame (2). The upper mold (4) and the lower mold (3) are closed and separated by the movement of the upper mold frame (2). The bottom of the lower mold (3) is provided with an injection port (5). It also includes a metal hose (6), one end of which is connected to the injection outlet of the injection molding machine, and the other end is detachably connected to the injection port (5).

2. The network patch cord injection molding device according to claim 1, characterized in that, It also includes an automatic docking mechanism, which includes a horizontal base plate (7), a vertical base (8) and a lifting platform (9). The horizontal base plate (7) is disposed on the lifting platform (9). The lifting platform (9) has a degree of freedom to move along the height direction of the lower mold base (1). Both the horizontal base plate (7) and the vertical base (8) have a degree of freedom to move along the horizontal direction. The direction of movement of the horizontal base plate (7) is perpendicular to the direction of movement of the vertical base (8). The vertical base (8) is disposed on the horizontal base plate (7). The metal hose (6) is installed on the vertical base (8).

3. The network patch cord injection molding device according to claim 2, characterized in that, The metal hose (6) is fixed with a quick connector (10) at one end away from the injection outlet. The quick connector (10) is installed on the longitudinal base (8). The quick connector (10) has a docking hole (11) for connecting the metal hose (6). The inner wall of the docking hole (11) is provided with multiple plug-in blocks (12). The multiple plug-in blocks (12) are evenly distributed around the circumference of the docking hole (11). The plug-in blocks (12) have the freedom to move radially along the docking hole (11). The outer wall of the injection port (5) is provided with an annular docking groove (13). The annular docking groove (13) is coaxial with the injection port (5). When the injection port (5) is assembled in the docking hole (11) of the quick connector (10), one end of the plug-in block (12) is inserted into the annular docking groove (13).

4. The network patch cord injection molding assembly device according to claim 3, characterized in that, The quick connector (10) has an installation groove (14) with a connecting hole (11) on its outer wall at the location where the plug block (12) is set. The plug block (12) is slidably adapted to the installation groove (14). A movable plate (15) is fixed to one end of the plug block (12) away from the connecting hole (11). The movable plate (15) is located on the outside of the quick connector (10). A high-temperature resistant spring (16) is sleeved on the plug block (12). One end of the high-temperature resistant spring (16) is connected to the movable plate (15), and the other end is connected to the outer wall of the quick connector (10).

5. A network patch cord injection molding device according to claim 4, characterized in that, The top of the plug block (12) away from the moving plate (15) is provided with a wedge-shaped surface (17), which is located on the moving path of the injection nozzle (5).

6. The network patch cord injection molding device according to claim 4, characterized in that, Each of the moving plates (15) is provided with a cylinder (18), the cylinder body of the cylinder (18) is horizontally mounted on the longitudinal base (8), the telescopic shaft of the cylinder (8) is connected to a lever (19), the lever (19) is located between the moving plate (15) and the quick connector (10), and the moving plate (15) is located on the moving path of the lever (19).

7. A network patch cord injection molding device according to claim 2, characterized in that, The docking hole (11) is a stepped hole. The stepped hole is a large-diameter hole and a small-diameter hole in sequence along the direction close to the metal hose (6). The injection tube opening (5) is adapted to the large-diameter hole. A high-temperature resistant sealing ring (20) is fixed on the step formed by the large-diameter hole and the small-diameter hole. The injection tube opening (5) deforms by squeezing the high-temperature resistant sealing ring (20).

8. A network patch cord injection molding device according to claim 2, characterized in that, Two horizontal linear drive modules (21) are arranged in parallel on the lifting platform (9). The two ends of the horizontal base plate (7) are respectively installed on the slides of the two horizontal linear drive modules (21). A vertical linear drive module (22) is installed on the horizontal base plate (7). The vertical base (8) is installed on the slide of the vertical linear drive module (22).

9. A network patch cord injection molding assembly device according to claim 8, characterized in that, A docking cylinder (23) is vertically installed below the lifting platform (9), and the telescopic shaft of the docking cylinder (23) is connected to the lifting platform (9).

10. A network patch cord injection molding device according to claim 1, characterized in that, A mold cylinder (24) is vertically mounted on the upper mold frame (2). The telescopic shaft of the mold cylinder (24) is connected to the upper mold mounting plate (25). The upper mold (4) is mounted on the upper mold mounting plate (25) by bolts. A mold groove (26) is provided on the lower mold base (1). The lower mold (3) is installed in the mold groove (26). A mating interface for the injection pipe (5) to pass through is provided at the bottom of the mold groove (26).

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