Router shell continuous injection molding equipment and molding process

Abstract

The application discloses a kind of router shell continuous injection molding equipment and molding process, it is related to injection molding equipment technical field, including machine tool, fixedly connected in the top of machine tool fixed die assembly and injection system;Fixed die assembly is close to the part of four corners and is equipped with through-hole, still include: linkage rod, slidably be internally provided in through-hole;Movable die assembly is provided with two groups, and is respectively installed in the two ends of linkage rod.The application is cooperated by setting symmetrical double movable die assembly and one fixed die assembly with double cavity, and is equipped with the moving assembly of making double movable die alternate operation, and the equipment realizes the real double position continuous production, when one side position is in injection, pressure maintaining or cooling phase, the other side position can carry out opening mould, ejection demoulding and closing mould preparation etc. action in synchronization, to overlap completely in time with the auxiliary process and main molding process which originally serial, must wait, significantly reduce equipment idle waiting period, greatly improve equipment utilization and production efficiency.

Description

Technical Field

[0001] This invention relates to the field of injection molding equipment technology, specifically to a continuous injection molding equipment and molding process for router housings. Background Technology

[0002] Routers, as core devices in modern network communication, are generally manufactured using plastic injection molding for their casings. This process involves heating and melting plastic raw materials, injecting them into a closed mold cavity, and then ejecting the mold after cooling and solidification to obtain casing parts with complex structures (such as heat dissipation holes, clips, and screw posts). This process is efficient, low-cost, and suitable for mass production.

[0003] However, existing common router casing injection molds have relatively simple structures, generally consisting of a fixed mold and a moving mold, resulting in low efficiency during production. They employ a single-mold movement method, leading to slow mold closing speeds and a lack of buffering. More importantly, the entire production cycle (including injection, holding pressure, cooling, mold opening, and ejection) must be completed sequentially at the same station. Holding pressure and cooling consume the majority of the time, while mold opening, closing, and ejection actions are delayed, resulting in low equipment utilization and hindering further improvements in production efficiency.

[0004] In the prior art, Chinese Patent No. CN113580499B discloses a high-efficiency router bottom shell injection mold to solve the above-mentioned technical problems. The technical solution disclosed in this patent document is as follows: "It is mainly composed of a combination mold and a feeding mold. The combination base and the feeding base constitute the mold mounting structure, and a guide structure and a drive structure are installed. The guide structure is composed of a guide rod and a support rail. The combination mold and the feeding mold are connected to it through the hanging ears and the base provided thereon to ensure the stability of mold closing. The combination mold and the feeding mold in this invention adopt a dual-movement structure, which moves in opposite directions when the mold is closed, resulting in higher mold closing efficiency and improving the production efficiency of the router bottom shell." This solution adopts a dual-movement structure in which the combination mold and the feeding mold move in opposite directions. It is guided by the guide rod and the support rail. When the mold is closed, the two move in opposite directions. Compared with single mold movement, it has a higher mold closing speed, aiming to improve production efficiency.

[0005] However, the above solution is still essentially a one-to-one production model, that is, a set of moving molds and a set of fixed molds work together. The opposing movement of the two molds mainly optimizes the speed of the mold closing process, but does not change the basic framework that the core processes such as injection, holding pressure, cooling, and mold opening must be carried out in sequence. When one mold cavity is holding pressure and cooling, the other mold (i.e., the feeding mold) is also in an idle waiting state. There is still a lot of room for improvement in the utilization rate of equipment and mold cavities, and it cannot fundamentally eliminate a lot of waiting time in the production cycle. Summary of the Invention

[0006] The purpose of this invention is to provide a continuous injection molding equipment for router housings. By using an alternating continuous working mode of dual moving molds and dual cavities, the cooling process is completely overlapped with other processes in time, thereby eliminating equipment waiting time and improving work efficiency.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0008] A continuous injection molding apparatus for router housings includes a machine tool, a fixed mold assembly fixedly connected to the top of the machine tool, and an injection system. The fixed mold assembly has through holes near its four corners and includes: a linkage rod slidably inserted into the through holes; two moving mold assemblies, each mounted at one end of the linkage rod, with a core on the side of the moving mold assembly closest to the fixed mold assembly; the fixed mold assembly includes a center block and molding blocks symmetrically fixedly connected to both sides of the center block, with cavities on the side of each molding block away from the center block, the two cavities corresponding to and cooperating with the two cores; a moving assembly located on the top of the machine tool, its movable end linked to the two moving mold assemblies, controlling the reciprocating motion of the moving mold assemblies; and a main runner, Y-shaped, with one end connected to the output end of the injection system and the other two ends connected to the cavities, a control assembly inside the main runner for sealing the un-injected side of the main runner.

[0009] By adopting the above technical solution, and by setting up a symmetrical dual-moving mold assembly in conjunction with a fixed mold assembly with dual cavities, and equipping it with a moving assembly that allows the dual moving molds to work alternately, this equipment achieves true dual-station continuous production. When one station (such as the left moving mold and the left cavity) is in the injection, holding pressure or cooling stage, the other station (the right moving mold and the right cavity) can simultaneously perform actions such as mold opening, ejection and demolding, and mold closing preparation. This completely overlaps the auxiliary processes that were originally sequential and required waiting with the main molding processes in terms of time, significantly reducing the equipment idle waiting period and greatly improving equipment utilization and production efficiency.

[0010] A further improvement of the technical solution of the present invention is as follows: the moving mold assembly includes a main module and a sub-module. The sub-module is slidably connected to the linkage rod, and the main module is fixedly connected to the linkage rod. A support block is fixedly connected to the top of both the main module and the sub-module. A support rod is fixedly connected to the movable end of the moving component, and both ends of the support rod pass through the support block. Four support plates are symmetrically fixedly connected to the outside of the support rod. A compression spring is sleeved on the outside of the support rod and between the main module and the sub-module. An installation groove is opened on the side of the molding block away from the center block. A piston cylinder is fixedly connected inside the installation groove. A locking rod is fixedly connected to the side of the main module away from the sub-module. A piston plate is fixedly connected to the end of the locking rod. The side of the piston plate away from the locking rod is rounded. A control tube is provided on the piston cylinder. An electric valve is connected to the control tube. The electric valve communicates with the piston cylinder through the control tube.

[0011] By adopting the above technical solution, through the sliding cooperation between the main module and the sub-module, the impact energy is absorbed by the elastic deformation of the clamping spring during the mold closing process, realizing the transition from rigid collision to flexible clamping, protecting the precision surface of the mold. During the mold closing process, the clamping spring can effectively absorb the kinetic energy at the end of the mold closing, converting rigid impact into flexible clamping and protecting the mold. After the mold is closed, by closing the electric valve, the atmospheric pressure difference is used to form a back pressure resistance on the piston plate in the piston cylinder, thereby mechanically locking the position of the sub-module, indirectly providing a stable clamping force, and preventing the mold from accidentally opening under injection pressure.

[0012] A further improvement of the technical solution of the present invention is as follows: the main module has several ejection holes that penetrate the core, and each ejection hole is provided with an ejector rod; a slide rod is fixedly connected to the side of the main module near the sub-module, the end of the slide rod is equipped with a limit head, an ejector plate is slidably connected to the outside of the slide rod, and a return spring is sleeved outside the slide rod and between the ejector plate and the main module; the ejector rod is fixedly connected to the ejector plate; two pressure seats are fixedly connected to the top of the machine tool; two discharge slots are opened on the top of the machine tool; and clearance holes corresponding to the limit heads are opened on the sub-module.

[0013] By adopting the above technical solution, the sub-module is designed to slide relative to the main module to drive the ejector rod to perform the ejection action. The driving force and triggering timing of the demolding action are entirely provided and controlled by the equipment's own mold closing motion, eliminating the need for additional power components (such as ejection cylinders) and complex independent timing programming. This greatly simplifies the equipment structure and control system, reduces costs and failure rates, and ensures the inevitability and consistency of the demolding action: as long as one side completes mold closing, the other side will necessarily complete ejection synchronously, achieving a perfect closed loop in the production cycle and further improving the automation level and overall operating efficiency of the equipment.

[0014] A further improvement of the technical solution of the present invention is that: a second mounting groove is provided on the main module, a limiting rod is slidably connected on the main module, the two ends of the limiting rod are respectively located on both sides of the main module and are fixedly connected to the end head, the limiting rod passes through the second mounting groove, and a pad is fixedly connected to the part of the limiting rod located in the second mounting groove, a push spring is sleeved on the outside of the limiting rod and inside the second mounting groove, and a clearance groove is provided on the side of the molding block away from the center block.

[0015] By adopting the above technical solution, a limiting mechanism consisting of a limiting rod, a pad, and a push spring is set on the main module, and a clearance groove is opened at the corresponding position of the molding block. This enables intelligent differentiation and selective locking of the movement states of the sub-modules on both the mold-closing and mold-opening sides, and actively identifies the current station status: on the mold-opening side, the mechanism remains retracted and does not interfere with the sub-module being pushed by the pressure seat to trigger ejection; on the mold-closing side, the mechanism is automatically activated, physically preventing the sub-module from generating the relative displacement required to trigger ejection. This ensures that the ejection action only occurs on the designated mold-opening side, while being limited and unable to eject on the mold-closing side. This greatly improves the reliability of the equipment's operation and the stability of the process, and avoids production accidents caused by malfunctions.

[0016] A further improvement of the technical solution of the present invention is that: the moving component includes a servo drive system, which is configured to drive the moving mold component to reciprocate according to a preset motion curve; the motion curve includes a high-speed segment and a low-speed segment at the end of the stroke, and the moving mold component decelerates when it approaches the stationary mold component.

[0017] By adopting the above technical solution, and by limiting the moving component to include a servo drive system and configuring it to run according to a preset motion curve that includes a high-speed segment and a low-speed segment at the end of the stroke, optimized control of the motion of the moving mold component is achieved. The direct effect is a significant improvement in the overall performance of the equipment: high-speed operation in the middle of the stroke makes full use of the idle time in the production cycle, improving production efficiency; automatic switching to the low-speed segment when approaching the mold closing position achieves gentle and smooth mold closing, effectively avoiding rigid impact, protecting the mold, and creating conditions for precise mold locking mechanism operation; during this process, the corresponding state on the other side is deceleration at the ejection position at the mold opening end, making the ejection action relatively slow and avoiding breaking the newly formed shell.

[0018] A further improvement of the technical solution of the present invention is that: the control component includes a straight cylinder disposed between the main channel and the cavity communication port, a partition portion separating the straight cylinder is provided in the middle of the straight cylinder, a plug is slidably connected through the partition portion, two plugs are fixedly connected to the outside of the plug, and the plugs fit against the inner wall of the straight cylinder; end caps are provided at both ends of the straight cylinder, and the shape inside the end caps matches the shape of the plug; pressure needles are fixedly connected to both ends of the plug; a portion of the two plugs on the side closest to each other is made of iron, and a magnet is fixedly connected to the center of the outer wall of the straight cylinder.

[0019] By adopting the above technical solution and setting up an automatically switching built-in control component, the fully mechanical automatic linkage between the main flow channel on / off state and the mold station switching is realized. The switching of the flow channel no longer depends on independent control signals and actuators, but is directly driven by the reciprocating motion of the moving mold component through the extrusion needle, and is positioned and held by magnets, thereby achieving absolute synchronous reliability and fundamentally eliminating the risk of accidental injection or leakage.

[0020] A further improvement of the technical solution of the present invention is that: a heating channel is provided inside the central block; the heating channel is connected to an external heat supply device; a cooling channel is provided inside both the main module and the molding block, and the cooling channel is connected to an external cold supply device; a partition cavity is provided on the side wall of the central block near the molding block, and a heat insulation plate is fixedly connected inside the partition cavity.

[0021] By adopting the above technical solution, an independent heating channel is set for the center block, and independent cooling channels are set for the main module and the molding block. A partition cavity with a heat insulation plate is set between the center block and the molding block. The heating channel can ensure that the main runner and control components are always at the high temperature required by the process, preventing melt condensation and ensuring the continuity of melt flow and the reliability of switching. The cooling channel can quickly and evenly remove the heat absorbed by the molding block and core from the melt, accelerate product solidification and shaping, effectively shorten the injection molding cycle, improve production efficiency, and ensure product dimensional stability and mechanical properties. The heat insulation plate acts as a thermal barrier, greatly blocking radial heat conduction from the heating zone to the cooling zone, allowing the temperature of the two functional zones to be controlled independently without interference, ensuring the stability and reliability of the process temperature under high-speed continuous operation.

[0022] A further improvement to the technical solution of the present invention is that rubber blocks are fixedly connected to the sides of the two pressure seats that are close to each other.

[0023] By adopting the above technical solution, rubber blocks are placed on the pressure base to reduce the impact generated when the sub-module is squeezed against it, thereby reducing damage to the equipment.

[0024] The present invention also discloses a continuous injection molding process for router housings, comprising the following steps (referring to the figure, the left side is defined as the first station, i.e., the first side, and the right side is defined as the second station, i.e., the second side):

[0025] S1: Equipment initialization and first mold closing injection: Drive the moving mold assembly to move, so that the core on one side closes with the corresponding cavity on the fixed mold assembly, completing the first mold closing; control the injection system to inject molten plastic into the closed cavity through the main runner and maintain pressure;

[0026] S2: Cooling at the first station and preparation at the second station: While the product in the first side cavity enters the cooling and shaping stage, the control of the moving component drives the moving mold assembly to move to the other side. This movement synchronously drives the first side core to separate from the cavity to open the mold and close the second side core and cavity.

[0027] S3: Runner switching and second station injection: After the second side mold is closed, the control components in the main runner automatically or under control switch to guide the melt runner to the second side cavity; control the injection system to inject molten plastic into the second side cavity and maintain pressure;

[0028] S4: Product demolding and first station reset: While injection and subsequent pressure holding and cooling are performed in the second side cavity, the first side mold opening station performs demolding: As the moving mold assembly continues to move in step S, the demolding mechanism on the first side contacts the pressure seat on the machine tool and is triggered to push out the molded product on the first side.

[0029] S5: Alternating Cyclic Production: After the second-side product enters the cooling and shaping stage, steps S to S are repeated, but in the opposite direction; that is, the moving component drives the moving mold component to move in the opposite direction, so that the first side re-closes the mold and the runner switches back to the first side, while the second side opens the mold and ejects the product; this cycle is repeated to achieve the alternation and overlap of the two stations in the injection, cooling, mold opening and ejection processes, so as to carry out continuous production.

[0030] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows:

[0031] 1. This invention achieves true dual-station continuous production by setting up a symmetrical dual-moving mold assembly in conjunction with a fixed mold assembly with dual cavities, and equipping it with a moving component that enables the dual moving molds to work alternately. When one station (such as the left moving mold and the left cavity) is in the injection, holding pressure, or cooling stage, the other station (the right moving mold and the right cavity) can simultaneously perform actions such as mold opening, ejection and demolding, and mold closing preparation. This completely overlaps the original sequential and waiting auxiliary processes with the main molding processes in terms of time, significantly reducing the equipment idle waiting period, greatly shortening the average production cycle of a unit product, and greatly improving equipment utilization and production efficiency.

[0032] 2. This invention utilizes the sliding cooperation between the main module and the sub-module. During the mold closing process, the impact energy is absorbed by the elastic deformation of the clamping spring, achieving a transition from rigid collision to flexible clamping. This protects the precision surface of the mold. During mold closing, the clamping spring effectively absorbs the kinetic energy at the mold closing end, converting rigid impact into flexible clamping and protecting the mold. After the mold is closed, the electric valve is closed, and atmospheric pressure difference is used to create back pressure resistance on the piston plate inside the piston cylinder, thereby mechanically locking the position of the sub-module and indirectly providing a stable clamping force to prevent the mold from accidentally opening under injection pressure.

[0033] 3. This invention utilizes the design of the sub-module being able to slide relative to the main module to drive the ejector rod to perform the ejection action. The driving force and triggering timing of the demolding action are entirely provided and controlled by the equipment's own mold closing motion, eliminating the need for additional power components (such as ejection cylinders) and complex independent timing programming. This greatly simplifies the equipment structure and control system, reduces costs and failure rates, and ensures the inevitability and consistency of the demolding action: as long as one side completes mold closing, the other side will necessarily complete ejection synchronously, achieving a perfect closed loop in the production cycle and further improving the automation level and overall operating efficiency of the equipment.

[0034] 4. This invention achieves intelligent differentiation and selective locking of the movement states of the sub-modules on both the mold-closing and mold-opening sides by setting a limiting mechanism consisting of a limiting rod, a pad, and a push spring on the main module, and opening a clearance groove at the corresponding position of the molding block. It actively identifies the current station status: on the mold-opening side, the mechanism remains retracted and does not interfere with the sub-module being pushed by the pressure seat to trigger ejection; on the mold-closing side, the mechanism is automatically activated, physically preventing the sub-module from generating the relative displacement required to trigger ejection, thereby ensuring that the ejection action only occurs on the designated mold-opening side, while being limited and unable to eject on the mold-closing side. This greatly improves the reliability of the equipment operation and the stability of the process, and avoids production accidents caused by malfunctions.

[0035] 5. This invention optimizes the motion control of the moving mold assembly by limiting the moving component to include a servo drive system and configuring it to run according to a preset motion curve that includes a high-speed segment and a low-speed segment at the end of the stroke. The direct effect is a significant improvement in the overall performance of the equipment: high-speed operation in the middle of the stroke fully utilizes the idle time in the production cycle, improving production efficiency; automatic switching to the low-speed segment when approaching the mold closing position achieves gentle and smooth mold closure, effectively avoiding rigid impact, protecting the mold, and creating conditions for precise mold locking mechanism operation; during this process, the corresponding state on the other side is deceleration at the ejection position at the mold opening end, making the ejection action relatively slow and avoiding breaking the newly formed shell. Attached Figure Description

[0036] The invention will now be further described with reference to the accompanying drawings.

[0037] Figure 1 This is one of the three-dimensional structural schematic diagrams of the entire invention;

[0038] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention;

[0039] Figure 3 This is a schematic diagram of the structure of the fixed mold assembly and the moving mold assembly of the present invention;

[0040] Figure 4 This is a top sectional view of the overall structure of the present invention;

[0041] Figure 5 This is a schematic diagram of the disassembled structure of the mold assembly of the present invention;

[0042] Figure 6 This is a cross-sectional view of the mold assembly of the present invention;

[0043] Figure 7 This is a schematic diagram of the layout structure of the support rod, support block and support plate of the present invention;

[0044] Figure 8 This is a schematic diagram of the disassembled structure of the moving mold assembly of the present invention;

[0045] Figure 9 This is a schematic diagram of the split structure of the main module of the present invention;

[0046] Figure 10 For the present invention Figure 4 Enlarged view of point A in the middle.

[0047] In the diagram: 1. Machine tool; 2. Moving assembly; 3. Fixed mold assembly; 301. Center block; 302. Main runner; 303. Forming block; 304. Cavity; 4. Moving mold assembly; 401. Sub-module; 402. Main module; 403. Support block; 404. Support rod; 405. Support plate; 406. Compression spring; 407. Core; 501. Slide rod; 502. Ejector hole; 503. Ejector rod; 504. Ejector plate; 505. Return spring; 506. Pressure seat; 507. Clearance hole; 601 602. Installation slot 2; 603. Limiting rod; 604. Push spring; 605. End; 606. Clearance slot; 607. Pad; 708. Piston cylinder; 709. Control pipe; 7000. Electric valve; 7001. Locking rod; 7002. Piston plate; 801. Straight cylinder; 802. End cap; 803. Divider; 804. Plug; 805. Block; 806. Pressure needle; 807. Magnet; 9. Injection system; 10. Discharge chute; 11. Divider cavity; 12. Heat insulation plate; 13. Linkage rod. Detailed Implementation

[0048] The present invention will be further described in detail below with reference to the embodiments.

[0049] Example 1

[0050] like Figures 1-10 As shown, the present invention provides a continuous injection molding equipment for router housings, including a machine tool 1, a fixed mold assembly 3 fixedly connected to the top of the machine tool 1, and an injection system 9; the fixed mold assembly 3 has through holes near its four corners, and also includes: a linkage rod 13 slidably inserted into the through holes; two moving mold assemblies 4, respectively installed at both ends of the linkage rod 13, with a core 407 on the side of the moving mold assembly 4 near the fixed mold assembly 3; the fixed mold assembly 3 includes a central block 301 and molding blocks 303 symmetrically fixedly connected to both sides of the central block 301, the molding blocks 303... 03. A cavity 304 is provided on the side away from the center block 301. The two cavities 304 correspond one-to-one with the two cores 407 and are used in conjunction. The moving component 2 is located on the top of the machine tool 1. Its movable end is linked with the two moving mold components 4. The moving component 2 can control the reciprocating motion of the moving mold components 4. The main channel 302 is Y-shaped. One end of it is connected to the output end of the injection system 9, and the other two ends are connected to the cavity 304 respectively. A control component is provided inside the main channel 302. The control component is used to block the side of the main channel 302 that is not injected.

[0051] Preferably, the injection system 9 is a screw-type injection unit, which includes a hopper, a barrel, a screw that is rotatable and axially movable inside the barrel, and a heating coil for heating the barrel; the nozzle of the screw-type injection unit is connected to one end of the main channel 302 located in the middle.

[0052] In this embodiment, by setting up a symmetrical dual-moving mold assembly 4 to cooperate with a fixed mold assembly 3 with dual cavities 304, and equipping it with a moving assembly 2 that enables the dual moving molds to work alternately, this equipment realizes true dual-station continuous production. When one station (such as the left moving mold and the left cavity 304) is in the injection, holding pressure or cooling stage, the other station (the right moving mold and the right cavity 304) can simultaneously perform actions such as mold opening, ejection and demolding and mold closing preparation. This completely overlaps the auxiliary processes that were originally sequential and required waiting with the main molding processes in terms of time, significantly reducing the equipment idle waiting period, greatly shortening the average production cycle of a unit product, and greatly improving equipment utilization and production efficiency.

[0053] During operation: The moving component 2 (such as a lead screw or rack and pinion mechanism driven by a servo motor) starts working. Its moving end drives the two moving mold components 4 linked with it to reciprocate linearly along the linkage rod 13 that passes through the through hole of the fixed mold component 3. Initially, it is assumed that the core 407 of the left moving mold component 4 is closed with the cavity 304 on the left side of the fixed mold component 3. The injection system 9 injects melt into the cavity 304 on this side through the Y-shaped main channel 302. After the injection is completed, this side enters the pressure holding and cooling stage until the router shell is formed.

[0054] Subsequently, the control moving component 2 drives the moving mold component 4 to move to the right as a whole. This movement process realizes the synchronous execution of two key actions: on the one hand, the core 407 of the right moving mold component 4 and the cavity 304 on the right side of the fixed mold component 3 gradually close; on the other hand, the cavity 304 where the molded product is located on the left side opens synchronously as the moving mold component 4 moves to the right. This design optimizes the injection molding sequence, so that each stroke of the moving mold component 4 completes the current mold closing and the previous mold opening at the same time, effectively utilizing the idle time wasted in the traditional single mold system.

[0055] After the right mold is closed, the injection system 9 injects into the right cavity 304 by switching the control components in the main runner 302. Subsequently, while injection, pressure holding, and cooling occur on the right side, the station on the left side, after mold opening, can perform auxiliary operations such as ejection, demolding, and removal of the finished product using an external robot. Once the main molding process on the right side is completed, the moving mold assembly 4 moves to the left again to begin the next cycle. In this way, the two stations work continuously and alternately, maximizing the overlap between the core molding time and auxiliary time in the traditional serial process, significantly reducing waiting time between processes, and thus improving processing efficiency.

[0056] Example 2

[0057] like Figure 3 , Figure 7 and Figure 8 As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, the moving module assembly 4 includes a main module 402 and a sub-module 401. The sub-module 401 is slidably connected to the linkage rod 13, and the main module 402 is fixedly connected to the linkage rod 13. Support blocks 403 are fixedly connected to the tops of both the main module 402 and the sub-module 401. A support rod 404 is fixedly connected to the movable end of the moving component 2, and both ends of the support rod 404 pass through the support blocks 403. Four support plates 405 are symmetrically fixedly connected to the outside of the support rod 404. Compression springs 406 are sleeved on the outside of the support rod 404 and between the main module 402 and the sub-module 401. Figure 6 and Figure 10 As shown, each of the molding blocks 303 has an installation groove on the side away from the center block 301. A piston cylinder 701 is fixedly connected inside each installation groove. A locking rod 704 is fixedly connected on the side of the main module 402 away from the sub-module 401. A piston plate 705 is fixedly connected to the end of the locking rod 704. The side of the piston plate 705 away from the locking rod 704 is rounded. A control pipe 702 is provided on the piston cylinder 701. An electric valve 703 is connected to the control pipe 702. The electric valve 703 communicates with the piston cylinder 701 through the control pipe 702.

[0058] In the above scheme, when the moving component 2 drives the two moving mold components 4 to reciprocate at high speed to achieve rapid station switching, if the mold closing action is a rigid direct collision, it is very easy to cause impact damage to the precision mating surface of the mold core 407 and the cavity 304, resulting in expensive maintenance costs and downtime.

[0059] In this embodiment, through the sliding cooperation between the main module 402 and the sub-module 401, the impact energy is absorbed by the elastic deformation of the clamping spring 406 during the mold closing process, realizing the transition from rigid collision to flexible clamping, protecting the precision surface of the mold. During the mold closing process, the clamping spring 406 can effectively absorb the kinetic energy at the end of the mold closing, converting the rigid impact into flexible clamping, protecting the mold. After the mold is closed, by closing the electric valve 703, the atmospheric pressure difference is used to form a back pressure resistance on the piston plate 705 in the piston cylinder 701, thereby mechanically locking the position of the sub-module 401, indirectly providing a stable clamping force, and preventing the mold from accidentally opening under injection pressure.

[0060] It should be noted that the two pallets 405 on one side of the fixed mold assembly 3 are located on the side of the two blocks 403 that are far apart, and the two pallets 405 on the other side of the fixed mold assembly 3 are located on the side of the two blocks 403 that are close together. In other words, the pushing action of the pallets 405 on the blocks 403 will be applied to the main modules 402 on both sides or to the sub-modules 401 at the same time.

[0061] During operation, when the moving component 2 drives the moving mold component 4 on one side (e.g., the left side) to close the mold, the support rod 404 at its movable end first drags the sub-module 401 along the linkage rod 13 towards the fixed mold component 3 through the support blocks 403 at both ends. When the sub-module 401 moves, it compresses the compression spring 406 located between it and the main module 402. The reaction force generated by the spring pushes the main module 402 and its core 407 to move together until they contact and press against the fixed mold cavity 304. This process achieves flexible buffering.

[0062] Meanwhile, the locking rod 704 fixed to the main module 402 and its end piston plate 705 are inserted into the corresponding piston cylinder 701 as the main module 402 moves. During the process of the piston plate 705 being inserted into the piston cylinder 701, the electric valve 703 connected to the piston cylinder 701 remains open, allowing the air inside the cylinder to be smoothly discharged, ensuring that the piston plate 705 can be pushed into place. When the mold reaches the preset accurate position, the control system immediately closes the electric valve 703, isolating the inside of the piston cylinder 701 from the external environment. At this time, if there is an external force... When the piston plate 705 is withdrawn (due to pressure generated within the mold cavity during injection molding), a momentary negative pressure (vacuum tendency) is generated within the closed cavity of the piston cylinder 701. External atmospheric pressure then acts on the piston plate 705, creating strong pull-out resistance. This securely locks the main module 402, the compression spring 406, and the main module 402 as a whole in their current position, preventing retraction and achieving reliable mold locking. To unlock, simply reopen the electric valve 703 before mold opening to allow air to enter and balance the internal and external pressures of the piston cylinder 701, thus releasing the lock. Preferably, to improve locking stability, an external vacuum system can be used to evacuate the piston cylinder 701, making the connection more stable. Unlocking can then be achieved by breaking the vacuum during mold opening.

[0063] like Figure 3 and Figure 8 As shown, preferably, the main module 402 has several ejector holes 502 that penetrate the core 407, and each ejector hole 502 is provided with an ejector rod 503; a slide rod 501 is fixedly connected to the side of the main module 402 near the sub-module 401, the end of the slide rod 501 is equipped with a limit head, an ejector plate 504 is slidably connected to the outside of the slide rod 501, a return spring 505 is sleeved outside the slide rod 501 and between the ejector plate 504 and the main module 402, and the ejector rod 503 is fixedly connected to the ejector plate 504; two pressure seats 506 are fixedly connected to the top of the machine tool 1; two discharge slots 10 are opened on the top of the machine tool 1; and the sub-module 401 has clearance holes 507 that correspond one-to-one with the limit heads.

[0064] In this embodiment, based on the design of the sub-module 401 being able to slide relative to the main module 402 in the above scheme, the ejector rod 503 is driven by this relative motion to perform the ejection action. The driving force and triggering timing of the demolding action are entirely provided and controlled by the mold closing motion of the equipment itself, without the need for additional power components (such as ejection cylinders) and complex independent timing programming. This greatly simplifies the equipment structure and control system, reduces costs and failure rates, and at the same time ensures the inevitability and consistency of the demolding action: as long as one side completes mold closing, the other side will definitely complete ejection synchronously, realizing a perfect closed loop of the production cycle and further improving the automation level and overall operating efficiency of the equipment.

[0065] Specifically, two pressure seats 506 are fixedly installed on the top of the machine tool 1. Their positions correspond to the specific trajectory points that the sub-modules 401 of the two moving mold components 4 can reach when they are in the mold opening (mold release) station. The ejection execution part is integrated on each main module 402: several ejector rods 503 slide through the ejection holes 502 of the main module 402, and their rear ends are fixedly connected to an ejector plate 504. The ejector plate 504 is guided and connected to the main module 402 through a slide rod 501, and is normally kept in the retracted (ejector rods 503 retracted) state by a return spring 505.

[0066] The linkage process is as follows: the moving component 2 drives the moving mold component 4 to move to the right as a whole, so that the left moving mold closes. During this overall rightward movement, the right moving mold (which contains the cooled and formed workpiece) is taken away from the fixed mold and enters the mold opening state. As the movement continues, the right sub-module 401 will move to contact the right pressure seat 506 fixed on the machine tool 1. Since the moving component 2 continuously provides a rightward driving force, and the pressure seat 506 is fixed in position, the pressure seat 506 directly blocks and pushes the right sub-module 401, preventing it from continuing to move to the right with the moving mold assembly 4 as a whole. The blocking effect of the pressure seat 506 forces the right sub-module 401 to overcome the force of the clamping spring 406 between it and the main module 402, and generate a forward sliding displacement relative to the right main module 402, and push the ejector plate 504 mounted on the main module 402 to move. The ejector plate 504 then compresses the return spring 505 and slides forward along the slide bar 501, thereby driving all the ejector rods 503 fixed thereto to extend forward synchronously, pass through the ejection hole 502 on the main module 402, and smoothly eject the molded router shell attached to the right core 407, completing the demolding. The ejected workpiece then falls into the collection device below through the discharge slot 10 opened at the top of the machine tool 1.

[0067] After the left-side mold closing process is completed, the moving component 2 drives the entire assembly to move to the left. At this time, the left-side moving mold opens, and its sub-module 401 will be blocked and pushed by the left-side pressure seat 506 in the same way during the leftward movement, triggering the ejection action on the left side. Simultaneously, the right-side sub-module 401 and ejector plate 504, which have completed ejection, return to their original positions under the action of their respective return springs 505, preparing for the next cycle. In this way, through the cooperation of the mold closing movement itself and the fixed pressure seat 506, the automatic linkage of the demolding actions on both sides is realized.

[0068] like Figure 8 and Figure 9As shown, preferably, the main module 402 has a second mounting groove 601, and a limiting rod 602 is slidably connected to the main module 402. The two ends of the limiting rod 602 are located on both sides of the main module 402 and are fixedly connected to the end head 604. The limiting rod 602 passes through the second mounting groove 601, and a pad 606 is fixedly connected to the part of the limiting rod 602 located in the second mounting groove 601. A push spring 603 is sleeved on the outside of the limiting rod 602 and inside the second mounting groove 601. A clearance groove 605 is provided on the side of the molding block 303 away from the center block 301.

[0069] Since the contact between the sub-module 401 and the fixed pressure seat 506 during the mold closing motion is the condition for triggering ejection, when the moving mold on one side is closing, the force of the moving component 2 driving the overall movement will also act on the mechanism on the other side that has not yet fully reset. Without special constraints, this force may cause unexpected relative sliding between the sub-module 401 and the main module 402 at the mold closing end, which may cause malfunction on the ejection mechanism that should remain stationary on that side, i.e., the ejector rod 503 is unexpectedly ejected when the mold is closed.

[0070] In this embodiment, by setting a limiting mechanism consisting of a limiting rod 602, a pad 606, and a push spring 603 on the main module 402, and opening a clearance groove 605 at the corresponding position of the molding block 303, intelligent differentiation and selective locking of the movement states of the sub-modules 401 on both the mold-closing and mold-opening sides are achieved, and the current station state is actively identified: on the mold-opening side, the mechanism remains retracted and does not interfere with the sub-module 401 being pushed by the pressure seat 506 to trigger ejection; on the mold-closing side, the mechanism is automatically activated, physically preventing the sub-module 401 from generating the relative displacement required to trigger ejection, thereby ensuring that the ejection action only occurs on the designated mold-opening side, while being limited and unable to eject on the mold-closing side, greatly improving the reliability of equipment operation and process stability, and avoiding production accidents caused by malfunctions.

[0071] Its specific working principle is as follows: When the moving mold assembly 4 on one side performs the mold closing action, as the main module 402 carries the core 407 and moves closer to the molding block 303, the clearance groove 605 fixed on the molding block 303 first aligns with one end of the limit rod 602 with the end 604. The mold closing continues. When the end face of the molding block 303 contacts and begins to press the end 604 of the limit rod 602, it will push the limit rod 602 to slide towards the sub-module 401. This sliding compresses the push spring 603 and causes the pad 606 fixed in the middle of the limit rod 602 to gradually extend out of the mounting groove 601. When the mold is fully closed, the limit rod 602 is pushed by the reaction force to the end that is closer to the sub-module 401 than the ejector plate 504. This makes the limit position of the subsequent movement of the sub-module 401 towards the main module 402 the position of the end of the limit rod 602, thereby avoiding the sub-module 401 from squeezing the ejector plate 504.

[0072] When the mold needs to be opened on this side, the moving mold assembly 4 moves away from the fixed mold as a whole, the pressure of the molding block 303 on the end 604 of the limit rod 602 is released, the push spring 603 then pushes the limit rod 602 to slide back and reset, the pad 606 is reset, and when the sub-module 401 on this side can move to the position of the ejector plate 504, it can be pushed normally to perform the ejection action.

[0073] Example 3

[0074] Based on Embodiment 2, the present invention provides a technical solution: preferably, the moving component 2 includes a servo drive system, which is configured to drive the moving mold component 4 to reciprocate according to a preset motion curve; the motion curve includes a high-speed segment and a low-speed segment at the end of the stroke, and the moving mold component 4 decelerates when it approaches the stationary mold component 3.

[0075] In this embodiment, by defining the moving component 2 as including a servo drive system and configuring it to run according to a preset motion curve that includes a high-speed segment and a low-speed segment at the end of the stroke, optimized control of the motion of the moving mold component 4 is achieved. The direct effect is a significant improvement in the overall performance of the equipment: running at high speed in the middle of the stroke makes full use of the idle time in the production cycle, improving production efficiency; automatically switching to the low-speed segment when approaching the mold closing position, achieving a gentle and smooth mold closing, effectively avoiding rigid impact, protecting the mold, and creating conditions for precise mold locking mechanism operation; during this process, the corresponding state on the other side is deceleration at the mold opening end ejection position, making the ejection action relatively slow, avoiding breaking the newly formed shell.

[0076] The preset motion curve is optimized and features at least two stages: a high-speed segment and a low-speed segment. During most of the stroke of the moving mold assembly 4 from one workstation to the other, the system controls it to operate in the high-speed segment to maximize idle speed, shorten cycle time, and improve production efficiency. When the moving mold assembly 4 reaches a critical position at the end of its stroke, the system automatically switches it to the low-speed segment. The "end of the stroke" specifically refers to two key process positions: first, the position where the moving mold assembly 4 approaches the fixed mold assembly 3 and is about to complete mold closing; second, the position where the moving mold assembly 4 moves away from the fixed mold assembly 3 and reaches the preset ejection position. These two process positions exist simultaneously on both sides.

[0077] By implementing the above-mentioned "fast at first, slow later" motion curve control, multiple beneficial effects were achieved:

[0078] Deceleration at the end of mold closing allows the moving mold assembly 4 to close with the fixed mold assembly 3 at a lower speed. This enables the implementation of low-pressure mold protection, allowing the system to detect the absence of foreign objects at low speed and pressure before applying high pressure to lock the mold, greatly reducing the risk of mold damage due to collisions or inclusions.

[0079] Deceleration at the end of mold opening (ejection position) ensures that the moving mold assembly 4 stops smoothly and accurately at the preset position. At this time, the ejection mechanism (not shown in the figure) linked with the fixed mold assembly 3 can operate in this stable environment, ejecting the molded product with uniform force, effectively avoiding whitening, deformation or damage to the product caused by vibration or inaccurate positioning.

[0080] This servo drive control system includes a servo motor, a driver, and high-precision position feedback elements such as encoders or linear encoders that receive commands from a higher-level controller (such as a PLC). During operation, the controller sends a target position command and preset multi-segment speed motion curve parameters to the servo driver. This curve clearly plans the speed change from the starting point to the end point: for most of the stroke after leaving a workstation, the moving mold assembly 4 runs at a high speed set by the high-speed segment under the drive of the servo motor to achieve rapid passage. When the system calculates that the moving mold assembly 4 is only a preset distance away from the target position (such as the mold closing contact point or the ejection preparation position) by reading the signal from the position feedback element in real time (i.e., entering the "end of the stroke"), the controller immediately sends a speed switching command to the servo driver.

[0081] The servo driver then controls the servo motor to decelerate smoothly, causing the moving mold assembly 4 to switch to low-speed operation. In the low-speed range, the moving mold assembly 4 accurately completes the last stroke at a low speed: on the mold closing side, it gently contacts the fixed mold at a low speed; on the mold opening side, it smoothly reaches the position blocked by the pressure seat 506 at a low speed. After reaching the precise target position, the system locks the position.

[0082] Example 4

[0083] like Figure 5 , Figure 6 and Figure 10 As shown, based on Embodiment 3, the present invention provides a technical solution: Preferably, the control component includes a straight cylinder 801 disposed between the main channel 302 and the cavity 304. A partition 803 is provided in the middle of the straight cylinder 801 to separate the straight cylinder 801. A plug 804 is slidably connected through the partition 803. Two plugs 805 are fixedly connected to the outside of the plug 804. The plugs 805 are in contact with the inner wall of the straight cylinder 801. End caps 802 are provided at both ends of the straight cylinder 801. The shape inside the end caps 802 matches the shape of the plug 804. Pressure needles 806 are fixedly connected to both ends of the plug 804. A portion of the two plugs 805 on the side closest to each other is made of iron. A magnet 807 is fixedly connected to the center of the outer wall of the straight cylinder 801.

[0084] In this embodiment, by setting an automatically switching built-in control component, the on / off state of the main flow channel 302 and the switching of the mold station are fully mechanically and automatically linked. The switching of the flow channel no longer depends on independent control signals and actuators, but is directly driven by the reciprocating motion of the moving mold component 4 through the extrusion needle 806, and is positioned and held by the magnet 807, thereby achieving absolute synchronous reliability and fundamentally eliminating the risk of accidental injection or leakage.

[0085] Its initial setup and working process are as follows:

[0086] In the initial state, the plug 804 can be pre-set to be attracted by the magnetic force between the iron ring at its end and the magnet 807 fixed in the center of the outer wall of the straight cylinder 801, and stay in a certain extreme position (e.g., the right side). At this time, the right side plug 805 is close to the end cap 802, blocking the flow channel to the right cavity 304; the left side plug 805 is close to the partition 803, and the left side flow channel is unobstructed. When the injection system 9 is started, since the left side flow channel is unobstructed and the right side is blocked by the plug 805, the melt will mainly flow to the left side, so that it can be injected to that side.

[0087] During injection mold switching, the left core 407 disengages from the cavity 304, while the right core 407 combines with the cavity 304. This process compresses the side pressure pin 806, pushing the plunger 804 to move. The sliding of the plunger 804 causes the end blocks 805 to move synchronously. When the plunger 804 slides until its left end iron ring enters the effective adsorption range of the central magnet 807, the magnetic force generated by the magnet 807 attracts the iron ring, thus assisting in pulling the plunger 804 to accelerate the completion of the final stroke and stabilize it at the new endpoint position. In this final state, the left end block 805 is tightly attached to the left end cap 802, sealing the left flow channel; the right end block 805 disengages from the end cap 802 and is tightly attached to the separator 803, opening the right flow channel. At this point, the main flow channel 302 automatically and synchronously switches to supply material to the right cavity 304, preparing for the next injection.

[0088] like Figure 5 , Figure 6 and Figure 10 As shown, preferably, the center block 301 has a heating channel inside; the heating channel is connected to an external heat supply device; the main module 402 and the molding block 303 both have cooling channels inside, and the cooling channels are connected to an external cold supply device; the center block 301 has a partition cavity 11 on the side wall near the molding block 303, and a heat insulation plate 12 is fixedly connected inside the partition cavity 11.

[0089] In this embodiment, an independent heating channel is provided for the central block 301, and independent cooling channels are provided for the main module 402 and the molding block 303. A partition cavity 11 with a heat insulation plate 12 is provided between the central block 301 and the molding block 303. The heating channel ensures that the main channel 302 and the control components are always at the high temperature required by the process, preventing melt condensation and ensuring the continuity of melt flow and the reliability of switching. The cooling channel can quickly and evenly remove the heat absorbed by the molding block 303 and the core 407 from the melt, accelerating product solidification and shaping, effectively shortening the injection molding cycle, improving production efficiency, and ensuring product dimensional stability and mechanical properties. The heat insulation plate 12 acts as a thermal barrier, greatly blocking radial heat conduction from the heating zone to the cooling zone, allowing the temperature of the two functional areas to be controlled independently without interference, ensuring the stability and reliability of the process temperature under high-speed continuous operation.

[0090] Preferably, rubber blocks are fixedly connected to the sides of the two pressure seats 506 that are close to each other.

[0091] In this embodiment, by setting a rubber block on the pressure seat 506, the impact generated when the sub-module 401 is squeezed against it is reduced, thereby reducing damage to the equipment.

[0092] This invention also discloses a continuous injection molding process for router housings, including the following steps (see reference). Figure 2 (The left side is defined as the first workstation, i.e., the first side, and the right side is defined as the second workstation, i.e., the second side).

[0093] S1: Equipment initialization and first mold closing injection: Drive the moving mold assembly 4 to move, so that the core 407 on one side closes with the corresponding cavity 304 on the fixed mold assembly 3, completing the first mold closing; control the injection system 9 to inject molten plastic into the closed cavity 304 through the main runner 302 and hold the pressure;

[0094] S2: Cooling at the first station and preparation at the second station: While the product in the first side cavity 304 enters the cooling and shaping stage, the control moving component 2 drives the moving mold component 4 to move to the other side; this movement synchronously drives the first side core 407 to separate from the cavity 304 to open the mold, and makes the second side core 407 close to the cavity 304.

[0095] S3: Runner switching and second station injection: After the second side mold is closed, the control components in the main runner 302 automatically or in a controlled manner switch to guide the melt runner to the second side cavity 304; control the injection system 9 to inject molten plastic into the second side cavity 304 and hold pressure;

[0096] S4: Product demolding and first station reset: While injection and subsequent pressure holding and cooling are performed in the second side cavity 304, the first side mold opening station performs demolding: As the moving mold assembly 4 continues to move in step S2, the demolding mechanism on the first side contacts the pressure seat 506 on the machine tool 1 and is triggered to push out the molded product on the first side.

[0097] S5: Alternating Cyclic Production: After the product on the second side enters the cooling and shaping stage, steps S2 to S4 are repeated, but in the opposite direction; that is, the moving component 2 drives the moving mold component 4 to move in the opposite direction, so that the first side re-closes the mold and the main runner 302 switches back to the first side, while the second side opens the mold and ejects the product; this cycle is repeated to achieve the alternation and overlap of the two stations in the injection, cooling, mold opening and ejection processes, so as to carry out continuous production.

[0098] The core breakthrough of this process lies in using a reciprocating moving mold assembly to drive two stations in a strictly alternating manner, completely overlapping the cooling process—the most time-consuming step in traditional injection molding—with all other auxiliary processes (such as mold opening, ejection, mold closing, and injection) on the time axis. The production cycle time of a single product is no longer limited by the total time of injection, cooling, and mold opening / closing, but is mainly determined by the injection and cooling times, thus significantly shortening the average production cycle and greatly improving equipment utilization and work efficiency.

[0099] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A continuous injection molding apparatus for router housings, comprising a machine tool (1), a fixed mold assembly (3) fixedly connected to the top of the machine tool (1), and an injection system (9); characterized in that, The fixed mold assembly (3) has through holes near its four corners, and also includes: The linkage rod (13) is slidably inserted inside the through hole; The moving mold assembly (4) is provided in two sets and is respectively installed at both ends of the linkage rod (13). The moving mold assembly (4) has a core (407) on the side closer to the fixed mold assembly (3). The fixed mold assembly (3) includes a center block (301) and molding blocks (303) symmetrically fixedly connected to both sides of the center block (301). Each side of the molding block (303) away from the center block (301) is provided with a cavity (304). The two cavities (304) correspond one-to-one with the two cores (407) and are used in conjunction. The moving component (2) is located on the top of the machine tool (1), and its movable end is linked with two moving mold components (4). The moving component (2) can control the reciprocating motion of the moving mold components (4). The main channel (302) is Y-shaped, with one end in the middle connected to the output end of the injection system (9), and the other two ends connected to the cavity (304). The main channel (302) is equipped with a control component inside, which is used to block the un-injected side of the main channel (302). The moving module assembly (4) includes a main module (402) and a sub-module (401). The sub-module (401) is slidably connected to the linkage rod (13), and the main module (402) is fixedly connected to the linkage rod (13). A support block (403) is fixedly connected to the top of both the main module (402) and the sub-module (401). A support rod (404) is fixedly connected to the movable end of the moving component (2), and both ends of the support rod (404) pass through the support block (403). Four support plates (405) are symmetrically fixedly connected to the outside of the support rod (404). A support is sleeved on the outside of the support rod (404) and between the main module (402) and the sub-module (401). A compression spring (406); each of the molding blocks (303) has an installation groove on the side away from the center block (301), and a piston cylinder (701) is fixedly connected inside the installation groove; a locking rod (704) is fixedly connected on the side of the main module (402) away from the sub-module (401), and a piston plate (705) is fixedly connected to the end of the locking rod (704); the side of the piston plate (705) away from the locking rod (704) is rounded; a control tube (702) is provided on the piston cylinder (701), and an electric valve (703) is connected to the control tube (702); the electric valve (703) communicates with the piston cylinder (701) through the control tube (702).

2. The continuous injection molding equipment for router housings according to claim 1, characterized in that: The main module (402) has several ejection holes (502) for penetrating cores (407), and each ejection hole (502) is provided with an ejector rod (503); a slide rod (501) is fixedly connected to the side of the main module (402) near the sub-module (401), the end of the slide rod (501) is equipped with a limit head, an ejector plate (504) is slidably connected to the outside of the slide rod (501), a return spring (505) is sleeved outside the slide rod (501) and between the ejector plate (504) and the main module (402), and the ejector rod (503) is fixedly connected to the ejector plate (504); two pressure seats (506) are fixedly connected to the top of the machine tool (1); two discharge slots (10) are opened on the top of the machine tool (1); the sub-module (401) has clearance holes (507) corresponding to the limit heads.

3. The continuous injection molding equipment for router housings according to claim 2, characterized in that: The main module (402) has a second mounting groove (601). A limiting rod (602) is slidably connected to the main module (402). The two ends of the limiting rod (602) are located on both sides of the main module (402) and are fixedly connected to end heads (604). The limiting rod (602) passes through the second mounting groove (601) and a pad (606) is fixedly connected to the part located in the second mounting groove (601). A push spring (603) is sleeved on the outside of the limiting rod (602) and inside the second mounting groove (601). A clearance groove (605) is opened on the side of the molding block (303) away from the center block (301).

4. The continuous injection molding equipment for router housing according to claim 3, characterized in that: The moving component (2) includes a servo drive system configured to drive the moving mold component (4) to reciprocate along a preset motion curve; the motion curve includes a high-speed segment and a low-speed segment at the end of the stroke, and the moving mold component (4) decelerates when it approaches the stationary mold component (3).

5. The continuous injection molding equipment for router housings according to claim 1, characterized in that: The control assembly includes a straight cylinder (801) disposed between the main channel (302) and the cavity (304) connection port. A partition (803) is provided in the middle of the straight cylinder (801) to separate the straight cylinder (801). A plug (804) is slidably connected through the partition (803). Two plugs (805) are fixedly connected to the outside of the plug (804). The plugs (805) are in contact with the inner wall of the straight cylinder (801). End caps (802) are provided at both ends of the straight cylinder (801). The shape inside the end caps (802) matches the shape of the plug (804). Pressure needles (806) are fixedly connected to both ends of the plug (804). A portion of the two plugs (805) on the side closest to each other is made of iron. A magnet (807) is fixedly connected to the center of the outer wall of the straight cylinder (801).

6. The continuous injection molding equipment for router housings according to claim 1, characterized in that: The center block (301) is provided with a heating channel inside; the heating channel is connected to an external heat supply device; the main module (402) and the molding block (303) are both provided with a cooling channel inside, and the cooling channel is connected to an external cold supply device; the center block (301) is provided with a partition cavity (11) on the side wall near the molding block (303), and a heat insulation plate (12) is fixedly connected inside the partition cavity (11).

7. A continuous injection molding equipment for router housings according to claim 2, characterized in that: Rubber blocks are fixedly connected to the sides of the two pressure seats (506) that are close to each other.

8. A continuous injection molding process for a router casing, characterized in that, The continuous injection molding equipment for router housings according to any one of claims 2-7 includes the following steps: S1: Equipment initialization and first mold closing injection: Drive the moving mold assembly (4) to move, so that the core (407) on one side closes with the corresponding cavity (304) on the fixed mold assembly (3), and complete the first mold closing; control the injection system (9) to inject molten plastic into the closed cavity (304) through the main runner (302) and hold the pressure; S2: Cooling at the first station and preparation at the second station: While the product in the first side cavity (304) enters the cooling and shaping stage, the control moving component (2) drives the moving mold component (4) to move to the other side. This movement synchronously drives the first side core (407) to separate from the cavity (304) to open the mold, and makes the second side core (407) close from the cavity (304). S3: Runner switching and second station injection: After the second side mold is closed, the control components in the main runner (302) automatically or in a controlled manner switch to guide the melt runner to the second side cavity (304); control the injection system (9) to inject molten plastic into the second side cavity (304) and hold pressure; S4: Product demolding and first station reset: While injection and subsequent pressure holding and cooling are being performed in the second side cavity (304), demolding is performed at the first side mold opening station; S5: Alternating Cyclic Production: After the second-side product enters the cooling and shaping stage, steps S2 to S4 are repeated, but in the opposite direction; this cycle is repeated to achieve alternating switching between the two stations in the injection, cooling, mold opening, and ejection processes.

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