A kind of green forming equipment for multi-material co-injection of automobile sunroof reinforcing frame

Abstract

This invention relates to the field of injection molding equipment technology and discloses a multi-material co-injection green molding equipment for automotive sunroof reinforcement frames. The equipment includes a hopper located within the injection molding machine. The hopper is connected to a material pipe via a connecting seat at its bottom. The connecting seat contains a sealing element for blocking the hopper. The sealing element includes a stop block slidably connected within the connecting seat, comprising a movable block and a fixed block. A guide rod penetrating the inner wall of the connecting seat is fixedly connected to the outer side of the fixed block. The stop block effectively seals the connecting seat, causing residual raw materials in the hopper to be discharged through the material guide pipe. This multi-material co-injection green molding equipment for automotive sunroof reinforcement frames effectively solves the problem in existing technologies where, during material switching or equipment shutdown, residual polymer raw material granules in the hopper automatically fall into the material feeding section area of ​​the barrel due to the lack of a directional emptying mechanism, easily causing cross-contamination between new and old materials.

Description

Technical Field

[0001] This invention relates to the field of injection molding equipment technology, specifically to a green molding equipment for multi-material co-injection molding of automotive sunroof reinforcing frames. Background Technology

[0002] In the automotive manufacturing industry, the sunroof reinforcement frame, as a key load-bearing component that supports the vertical load of the roof and maintains the rigidity of the vehicle body structure, is directly affected by the quality of its molding process, which in turn affects the overall vehicle safety performance, sealing reliability, and NVH control level. Multi-material co-injection molding technology, with its ability to synergistically integrate the superior properties of various polymer materials, uses injection molding equipment and specialized molds to precisely mold reinforcement frame components, and has become one of the core molding technologies for the industrial production of such components.

[0003] During the operation of injection molding equipment, the raw material is typically conveyed into the hopper, which then transfers the material into the barrel via a connecting seat for injection molding. When material switching or equipment shutdown occurs, residual material falls into the barrel feeding section, causing cross-contamination between new and old materials. This not only leads to increased material loss and waste disposal costs, but also causes residual material to soften and clump due to the residual heat from the heating system. This material then adheres to the screw surface and solidifies upon cooling, ultimately negatively impacting the stability of subsequent production processes and potentially causing blockages in the screw conveyor section or a decrease in plasticizing performance. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides a green molding equipment for multi-material co-injection molding of automotive sunroof reinforcing frames. This equipment effectively solves the problem in existing technologies where, during material switching or equipment shutdown, residual polymer raw material granules in the hopper automatically fall into the material feeding section of the hopper due to the lack of a directional emptying mechanism, easily causing cross-contamination between new and old materials.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides a multi-material co-injection molding green molding equipment for automotive sunroof reinforcement frames, comprising:

[0007] The hopper located inside the injection molding equipment;

[0008] The hopper is connected to the material pipe via a connecting seat at its bottom, and the connecting seat is equipped with a sealing component for blocking the hopper. The outer surface of the connecting seat is fixedly connected to a material guide pipe that is connected to an external storage unit.

[0009] The sealing component includes a stop block that is slidably connected within the connecting seat, and the stop block includes a movable block and a fixed block. A guide rod that penetrates the inner wall of the connecting seat is fixedly connected to the outer side of the fixed block.

[0010] When the stop block moves upward along the axis of the guide rod, it can block the connecting seat, causing the remaining raw material in the hopper to be discharged from the feed pipe.

[0011] Furthermore, it also includes a screw installed inside the hopper for conveying raw materials, wherein an auxiliary rod is fixedly connected to the bottom of the screw, and a keyway is provided on the outer surface of the auxiliary rod.

[0012] Furthermore, the movable block and the fixed block are provided with sliding holes that fit with the outer surface of the auxiliary rod, and the inner wall of the sliding hole near the movable block is provided with splines that fit with the keyway.

[0013] Furthermore, the connecting seat is provided with an inclined part, and the outer surfaces of the movable block and the fixed block are provided with conical surfaces that fit with the inclined part. The fixed block is slidably connected to a movable frame through a guide hole provided on its outer side, and the outer side of the movable frame is designed with an inclined surface. Multiple movable frames are provided and distributed in a circumferential array along the center of the fixed block. A top rod is slidably connected inside the fixed block, and the bottom of the top rod is provided with an arc surface that fits with the inclined surface of the movable frame.

[0014] The movable frame is connected to the inner wall of the fixed block via an elastic element located on its outer side. A magnetic element is fixedly connected to the outer side of the movable frame, and the magnetic element is magnetically connected to the inclined part.

[0015] Furthermore, the movable block is slidably connected to a push block through a slot at its bottom, and the push block is connected to the inner wall of the slot through an elastic element on its outer side. The push block has an L-shaped design and arc-shaped surfaces on both sides.

[0016] Furthermore, a counterweight frame is slidably connected inside the movable block, and an inclined plate that fits against the arc surface of the push block is fixedly connected to the outside of the counterweight frame.

[0017] Furthermore, the movable block has a movable hole on its outer side, and a movable plate is rotatably connected inside the movable hole. The bottom of the movable plate has an inclined surface that fits against the arc surface of the push block.

[0018] The technical solution provided by this invention has the following advantages compared with the prior art:

[0019] This invention features a stop block. When the equipment stops after injection molding, the telescopic unit drives the guide rod to move the stop block upwards. Its conical surface engages with the inclined portion of the connecting seat, sealing the connection between the hopper and the barrel. At this time, any remaining raw material in the hopper is discharged to an external storage unit through the guide pipe. Through mechanical sealing and directional material guidance, residual raw material is prevented from falling into the barrel and mixing with new material, thus eliminating cross-contamination. The stop block uses a conical surface design; during normal feeding, the raw material smoothly falls into the barrel along the conical surface, utilizing geometric flow guiding characteristics to reduce material accumulation on the stop block surface. When the stop block blocks the connecting seat, the conical surface and the inclined part fit tightly together to form a sealing surface, ensuring that the material discharge path of the guide pipe is unobstructed. When the stop block blocks the connecting seat, the magnetic component on the outside of the movable frame and the inclined part generate a repulsive force, driving the movable frame to move towards the axis. Its inclined surface squeezes the top rod to move it upward. The top rod pushes the movable block up to the feed inlet of the guide pipe. When the movable block moves upward, it pushes the raw material in the drop area between the guide pipe and the stop block upward, ensuring that this part of the material is discharged through the guide pipe and avoiding residual dead corners. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0021] Figure 1 This is a front-view stereoscopic structural diagram of an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the three-dimensional separation structure according to an embodiment of the present invention;

[0023] Figure 3 This is a cross-sectional view of the hopper and connecting seat according to an embodiment of the present invention;

[0024] Figure 4 This is a cross-sectional view of the stop block according to an embodiment of the present invention;

[0025] Figure 5 This is a cross-sectional view of the fixing block according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the three-dimensional separation structure of the active block in an embodiment of the present invention.

[0027] The labels in the diagram represent: 1. Hopper; 11. Screw; 12. Auxiliary rod; 2. Connecting seat; 3. Sealing component; 31. Stop block; 311. Movable block; 312. Fixed block; 32. Guide rod; 33. Movable frame; 34. Top rod; 35. Magnetic component; 36. Push block; 37. Counterweight frame; 371. Inclined plate; 38. Movable hole; 39. Movable plate; 4. Guide pipe. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0029] The present invention will be further described below with reference to embodiments.

[0030] Example:

[0031] Please see Figures 1-6 This invention provides a technical solution: a multi-material co-injection molding green molding equipment for automotive sunroof reinforcing frames, comprising:

[0032] Hopper 1 is located inside the injection molding equipment;

[0033] The hopper 1 is connected to the material pipe through the connecting seat 2 at its bottom, and the connecting seat 2 is provided with a sealing part 3 for blocking the hopper 1. The outer surface of the connecting seat 2 is fixedly connected to the guide pipe 4 which is connected to the external storage unit.

[0034] The sealing component 3 includes a stop block 31 that is slidably connected in the connecting seat 2, and the stop block 31 includes a movable block 311 and a fixed block 312. A guide rod 32 that penetrates the inner wall of the connecting seat 2 is fixedly connected to the outer side of the fixed block 312.

[0035] When the stop block 31 moves upward along the axis of the guide rod 32, the stop block 31 can block the connecting seat 2, causing the remaining raw material in the hopper 1 to be discharged from the guide pipe 4.

[0036] It also includes a screw 11 installed in the hopper 1 for conveying raw materials. An auxiliary rod 12 is fixedly connected to the bottom of the screw 11, and a keyway is provided on the outer surface of the auxiliary rod 12.

[0037] The movable block 311 and the fixed block 312 have sliding holes that fit with the outer surface of the auxiliary rod 12. The inner wall of the sliding hole near the movable block 311 has splines that fit with the keyway.

[0038] The connecting seat 2 is provided with an inclined part. The outer surfaces of the movable block 311 and the fixed block 312 are provided with conical surfaces that fit with the inclined part. The fixed block 312 is slidably connected to the movable frame 33 through the guide hole provided on its outer side. The outer side of the movable frame 33 is designed with an inclined surface. Multiple movable frames 33 are provided and distributed in a circumferential array along the center of the fixed block 312. The fixed block 312 is slidably connected to the top rod 34, and the bottom of the top rod 34 is provided with an arc surface that fits with the inclined surface of the movable frame 33.

[0039] The movable frame 33 is connected to the inner wall of the fixed block 312 via an elastic member on its outer side. A magnetic member 35 is fixedly connected to the outer side of the movable frame 33, and the magnetic member 35 is magnetically connected to the inclined part.

[0040] The movable block 311 is slidably connected to the push block 36 through a slot at its bottom, and the push block 36 is connected to the inner wall of the slot through an elastic member on its outer side. The push block 36 has an L-shaped design and the two sides of the push block 36 have an arc design.

[0041] The movable block 311 is internally connected to a counterweight frame 37, and the outside of the counterweight frame 37 is fixedly connected to an inclined plate 371 that fits against the arc surface of the push block 36.

[0042] The movable block 311 has a movable hole 38 on its outer side, and a movable plate 39 is rotatably connected inside the movable hole 38. The bottom of the movable plate 39 has an inclined surface that fits against the arc surface of the push block 36.

[0043] Working principle and advantages of this green molding equipment for multi-material co-injection molding of automotive sunroof reinforcing frames:

[0044] The feed rod inside the injection molding machine delivers a quantity of material each time, set according to the required weight of the reinforcing frame. Precise metering is achieved through closed-loop feedback from the injection cylinder. After the last product is injection molded, there will inevitably be excess material remaining in hopper 1. This is a safety margin set to avoid the risk of material shortage due to fluctuations in material density.

[0045] When the injection molding equipment completes the last reinforcing frame injection process, some raw material remains inside hopper 1. At this time, the telescopic unit installed on the outside of the connecting seat 2 drives the guide rod 32 to move upward along its axis, causing the stop block 31 to move horizontally towards the discharge end of the connecting seat 2. When the stop block 31 is fully embedded inside the connecting seat 2, its outer conical surface fits tightly against the inclined part of the inner wall of the connecting seat 2, forming a seal on the discharge channel of the connecting seat 2. Through the mechanical sealing of the stop block 31 and the directional guidance of the guide pipe 4, the residual raw material is prevented from falling into the barrel and mixing with the new material, thus preventing cross-contamination. The remaining raw material in hopper 1 is discharged from the guide pipe 4, which avoids the need for operators to remove the entire hopper 1 and connecting seat 2 from the barrel inside the injection molding equipment during cleaning, simplifying the cleaning process for the remaining raw material inside hopper 1.

[0046] It is worth noting that during normal material feeding, the telescopic unit, in conjunction with the guide rod 32, performs a reverse action, driving the stop block 31 to move downwards until it is completely disengaged from the cavity of the connecting seat 2. At this time, the connecting seat 2 is in a conductive state, and the raw material in the hopper 1 can smoothly enter the material cylinder through the connecting seat 2. When the stop block 31 moves to its maximum stroke position, it maintains a safe distance from the feeding rod inside the material cylinder, effectively avoiding mechanical interference between the two and ensuring the continuous and stable operation of the equipment.

[0047] Since both the fixed block 312 and the movable block 311 adopt a conical surface structure design, in the initial working position, the top surface of the fixed block 312 and the bottom surface of the movable block 311 form a surface contact, together constituting the combined stop block 31. When the stop block 31 undergoes axial displacement and the connecting seat 2 is in a conductive state, the raw material in the hopper 1 is injected into the material cylinder through the guiding effect of the conical surface. This conical surface structure utilizes its geometric guiding characteristics to allow the material falling from the hopper 1 to smoothly slide down the conical surface of the stop block 31, effectively preventing the accumulation of material on the surface of the stop block 31.

[0048] After sealing is completed, the screw 11 inside the hopper 1 begins to rotate under the drive of the drive unit, conveying the remaining raw material in the hopper 1 towards the connecting seat 2 along the screw 11 guide. During the material conveying process, most of the raw material entering the connecting seat 2 is discharged through the four inclined guide pipes and finally enters the external storage device. This design achieves efficient discharge of the remaining raw material from the hopper 1, and the raw material collected in the external storage device can be centrally recycled, facilitating secondary utilization in subsequent production processes.

[0049] It is worth noting that the four guide pipes adopt an inclined structure design, with solenoid valve assemblies fixedly installed on their outer surface. During non-discharge operations, the solenoid valves remain closed, effectively preventing raw materials from leaking from the four guide pipes during normal material discharge from hopper 1, thus avoiding material waste. When the equipment enters the discharge mode, the solenoid valves automatically open, providing a smooth channel for the discharge of remaining raw materials in hopper 1, ensuring the smooth progress of the discharge operation.

[0050] Because of the vertical drop between the guide pipe 4 and the conical surface of the stop block 31, the raw material located within this drop range cannot be normally discharged through the guide pipe 4. When the stop block 31 and the inclined part in the connecting seat 2 are in contact, the magnetic component 35 in the movable frame 33 is activated, generating a repulsive force between it and the inclined part, causing the movable frame 33 to move radially towards the axis along the guide hole on the surface of the fixed block 312. During this process, the inclined surface of the movable frame 33 presses against the arc-shaped working surface of the push rod 34, pushing the push rod 34 to generate axial displacement along its central axis, thereby lifting the movable block 311 upward to the set height. When the push rod 34 is displaced to the maximum stroke, the movable block 311 moves upward along the axis of the auxiliary rod 12 to the feed port of the guide pipe 4. Through the sealing fit with the inner wall of the connecting seat 2 (the area above the inclined part), the raw material located within the vertical drop range between the guide pipe 4 and the stop block 31 is pushed upward, allowing this part of the raw material to be discharged through the guide pipe 4. When the movable block 311 moves upward, it pushes the raw material in the drop area between the guide pipe 4 and the stop block 31 upward, ensuring that this part of the material is discharged through the guide pipe 4 and avoiding residual dead corners.

[0051] When the movable block 311 and the fixed block 312 are separated, a vertical gap is formed between them. At this time, the counterweight frame 37 inside the movable block 311, having broken free from the mechanical constraint at the top of the fixed block 312, undergoes linear displacement in the vertical direction under the action of gravity. During this process, the inclined plate 371 structure of the counterweight frame 37 applies a radial force to the arc-shaped bearing surface of the push block 36, driving the push block 36 to move centrifugally away from the center of the movable block 311 along the slot. As the push block 36 displaces, the movable plate 39, which remains in contact with it, undergoes angular displacement around its own axis. When the push block 36 moves to the limit position of the slot, the movable plate 39 completely rotates out of the movable hole 38 and forms surface contact with the inner wall of the connecting seat 2.

[0052] Meanwhile, the screw 11 and auxiliary rod 12 inside hopper 1 continue to rotate. The keyway on the surface of the auxiliary rod 12 engages with the spline sliding hole in the movable block 311. When the machine stops to discharge material, the screw 11 rotates, causing the movable block 311 to rotate synchronously. However, the inner wall of the sliding hole in the fixed block 312 is designed to be smooth. When the movable block 311 rotates, the fixed block 312 will not rotate with it, avoiding motion interference between the fixed block 312 and the guide rod 32, which would prevent the stop block 31 from functioning properly and affect the normal blocking of the connecting seat 2. During this process, the unfolded movable plate 39 forms a mechanical scraper structure, pushing the material in the area of ​​the connecting seat 2 away from the guide pipe 4 towards the discharge port, thereby forming a directional material flow and effectively improving the material conveying efficiency. The push block 36 drives the movable plate 39 to rotate out and contact the inner wall of the connecting seat 2. At this time, the movable plate 39 rotates with the movable block 311 to form a scraper, scraping the raw material in other positions in the connecting seat 2 to the guide pipe 4, further discharging the remaining raw material in hopper 1.

[0053] It is worth noting that the push rod 34 uses an embedded rolling element. When a height difference occurs between the movable block 311 and the fixed block 312, the rolling element inside the push rod 34 will contact the bottom of the movable block 311. As the movable block 311 rotates, the rolling element reduces the frictional resistance between the push rod 34 and the movable block 311 by replacing sliding friction with rolling friction, effectively improving the rotational stability of the movable block 311.

[0054] After the material discharge process is completed, the magnetic component 35 stops working, and the magnetic repulsion between it and the inclined part of the connecting seat 2 disappears. Under the action of the elastic component on the outside of the movable frame 33, the movable frame 33 gradually resets to the initial position along the guide hole. During this process, the push rod 34 slides down axially to the initial position due to its own weight, driving the movable block 311 to descend synchronously until it returns to the initial contact state with the fixed block 312.

[0055] As the movable block 311 approaches the fixed block 312, with the decrease in axial clearance, the inclined plate 371, constrained by the top of the fixed block 312, generates an upward displacement component, driving the counterweight frame 37 back to its initial position. Simultaneously, the push block 36, under the restoring force of the outer elastic element, moves centripetally along the slot, causing the movable plate 39 to perform a reverse angular displacement around its central axis, ultimately returning to its initial storage state, completing the system reset process and preparing for the next work cycle. By mechanically sealing the connecting seat 2 with the stop block 31, residual raw materials in the hopper 1 can be centrally recovered through the guide pipe 4 when the machine stops. The collected raw materials can be reused, reducing waste caused by material contamination or blockage, lowering material loss rate and disposal costs, and conforming to the concept of green molding.

[0056] This solution uses a separate stopper 31, which has the following advantages:

[0057] Firstly, when the equipment stops after injection molding, the telescopic unit drives the guide rod 32 to move the stop block 31 upwards. Its conical surface fits against the inclined part of the connecting seat 2, sealing the connecting seat 2 between the hopper 1 and the barrel. At this time, the remaining raw material in the hopper 1 is discharged to the external storage unit through the guide pipe 4. Through mechanical sealing and directional material guiding, residual raw material is prevented from falling into the barrel and mixing with new material, thus eliminating cross-contamination.

[0058] Secondly, the stop block 31 (movable block 311 and fixed block 312) adopts a conical surface design. During normal feeding, the raw material smoothly falls into the material cylinder along the conical surface, reducing the accumulation of material on the surface of the stop block 31 by utilizing geometric flow guiding characteristics. When the stop block 31 blocks the connecting seat 2, the conical surface and the inclined part fit tightly together to form a sealing surface, ensuring that the material discharge path of the guide pipe 4 is unobstructed. The distance between the stop block 31 and the connecting seat 2 can be adjusted accordingly. When the distance is at its maximum (the stop block 31 moves to its maximum stroke), the cross-sectional area of ​​the discharge port is at its maximum, and the discharge volume of the connecting seat 2 reaches its peak, which is suitable for scenarios that require rapid feeding or large flow rate. When the distance decreases (the stop block 31 moves upward), the cross-sectional area of ​​the discharge port decreases, and the discharge volume decreases accordingly, which can achieve precise feeding at a small flow rate. For materials with good flowability, the discharge efficiency can be improved by increasing the distance. For materials that are prone to agglomeration or have poor flowability, the distance can be reduced to control the discharge speed and avoid blockage caused by excessive flow rate.

[0059] Thirdly, when the stop block 31 blocks the connecting seat 2, the magnetic component 35 on the outside of the movable frame 33 generates a repulsive force with the inclined part, driving the movable frame 33 to move towards the axis. Its inclined surface presses against the push rod 34, causing it to move upward. The push rod 34 pushes the movable block 311 up to the feed inlet of the guide pipe 4. When the movable block 311 moves upward, it pushes the raw material in the drop area between the guide pipe 4 and the stop block 31 upward, ensuring that this part of the material is discharged through the guide pipe 4 and avoiding residual dead corners.

[0060] Fourthly, when the movable block 311 separates from the fixed block 312, the counterweight frame 37 falls due to gravity, and its inclined plate 371 pushes the pusher block 36 to move outward. The pusher block 36 drives the movable plate 39 to rotate out and contact the inner wall of the connecting seat 2. At this time, the movable plate 39 rotates with the movable block 311 to form a scraper, which scrapes the raw materials in other positions in the connecting seat 2 to the guide pipe 4, and further discharges the remaining raw materials in the hopper 1.

[0061] Fifthly, the bottom of the screw 11 inside the hopper 1 is connected to the auxiliary rod 12, and the keyway on the surface of the auxiliary rod 12 mates with the spline sliding hole in the movable block 311. When the machine stops to discharge material, the screw 11 rotates, causing the movable block 311 to rotate synchronously. However, the inner wall of the sliding hole in the fixed block 312 is designed to be smooth, so when the movable block 311 rotates, the fixed block 312 will not rotate with it. After the movable plate 39 on the outside of the movable block 311 rotates out, it forms a scraper, which pushes the material in the connecting seat 2 away from the guide pipe 4 toward the discharge port, forming a directional material flow and improving the discharge efficiency.

[0062] Advantage six: After the material discharge is completed, the repulsive force of the magnetic component 35 disappears, the movable frame 33 resets under the action of the outer elastic component, and the top rod 34 descends due to its own weight, causing the movable block 311 to fit against the fixed block 312. At the same time, the push block 36 retracts under the restoring force of the elastic component, the movable plate 39 resets to the storage state, and the entire stop block 31 automatically returns to the initial working position.

[0063] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-material co-injection molding green molding equipment for automotive sunroof reinforcing frames, characterized in that, include: A hopper (1) located inside the injection molding equipment; The hopper (1) is connected to the material pipe through the connecting seat (2) at its bottom, and the connecting seat (2) is provided with a sealing part (3) for blocking the hopper (1). The outer surface of the connecting seat (2) is fixedly connected to the material guide pipe (4) connected to the external storage unit. The sealing component (3) includes a stop block (31) that is slidably connected in the connecting seat (2), and the stop block (31) includes a movable block (311) and a fixed block (312). A guide rod (32) that penetrates the inner wall of the connecting seat (2) is fixedly connected to the outside of the fixed block (312). When the stop block (31) moves upward along the axis of the guide rod (32), the stop block (31) can block the connecting seat (2), causing the remaining raw material in the hopper (1) to be discharged from the feed pipe (4); The connecting seat (2) is provided with an inclined part. The outer surfaces of the movable block (311) and the fixed block (312) are provided with conical surfaces that fit with the inclined part. The fixed block (312) is slidably connected to a movable frame (33) through a guide hole provided on its outer side. The movable frame (33) has an inclined surface design on its outer side. The movable frame (33) is provided with multiple movable frames and is arranged in a circular array along the center of the fixed block (312). The fixed block (312) is slidably connected with a top rod (34). The bottom of the top rod (34) is provided with an arc surface that fits with the inclined surface of the movable frame (33). The movable frame (33) is connected to the inner wall of the fixed block (312) by an elastic member provided on its outer side. A magnetic member (35) is fixedly connected to the outer side of the movable frame (33), and the magnetic member (35) is connected to the inclined part by magnetic force.

2. The green molding equipment for multi-material co-injection molding of automotive sunroof reinforcing frames according to claim 1, characterized in that: It also includes a screw (11) installed in the hopper (1) for conveying raw materials. An auxiliary rod (12) is fixedly connected to the bottom of the screw (11), and a keyway is provided on the outer surface of the auxiliary rod (12).

3. The green molding equipment for multi-material co-injection molding of automotive sunroof reinforcing frames according to claim 2, characterized in that: The movable block (311) and the fixed block (312) have sliding holes that fit with the outer surface of the auxiliary rod (12) inside, and the inner wall of the sliding hole near the movable block (311) has splines that fit with the keyway.

4. The green molding equipment for multi-material co-injection molding of automotive sunroof reinforcing frames according to claim 1, characterized in that: The movable block (311) is slidably connected to a push block (36) through a slot at its bottom, and the push block (36) is connected to the inner wall of the slot through an elastic element on its outer side. The push block (36) is L-shaped and has arc-shaped sides.

5. The green molding equipment for multi-material co-injection molding of an automotive sunroof reinforcing frame according to claim 4, characterized in that: The movable block (311) is internally connected to a counterweight frame (37), and the counterweight frame (37) is fixedly connected to an inclined plate (371) that fits against the arc surface of the push block (36).

6. The green molding equipment for multi-material co-injection molding of an automotive sunroof reinforcing frame according to claim 4, characterized in that: The movable block (311) has a movable hole (38) on its outer side, and a movable plate (39) is rotatably connected inside the movable hole (38). The bottom of the movable plate (39) has an inclined surface that fits against the arc surface of the push block (36).

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