Integrated injection molding apparatus for a bumper with built-in reinforcement structure

Abstract

The application discloses integrated injection molding equipment for built-in reinforcing structure bumpers, mainly relates to the technical field of injection molding, and is based on conventional injection molding process principles. For bumpers with multiple reinforcing structures, the injection molding cavity is divided into multiple feature sub-zones according to the molding characteristics of the built-in reinforcing structure, and a working condition acquisition unit is embedded. Through the linkage control module of an electric control system, the melt pressure and temperature data of each sub-zone are received in real time. After multi-dimensional fusion analysis, control instructions are generated based on the full-zone molding critical requirements. The injection full-process core parameters of glue injection, pressure maintaining, cooling and demolding are synchronously adjusted. The global molding parameters and the actual molding state of multiple reinforcing structures are dynamically adapted, so as to solve the problems of many injection molding defects, internal stress concentration and poor molding consistency of high-filling reinforced bumpers, and significantly improve the product structure performance and production stability.

Description

Technical Field

[0001] This invention relates to the field of injection molding technology, and more specifically to an integrated injection molding equipment for bumpers with built-in reinforced structures. Background Technology

[0002] Conventional bumper structures mostly use lightweight, high-strength materials such as aluminum alloy, which are obtained through stamping. Alternatively, they can use plastic materials such as glass fiber reinforced materials and composite materials (carbon fiber), which are lighter in weight while ensuring high structural strength. These are mostly produced using injection molding.

[0003] Specifically, this explanation addresses bumpers with built-in reinforcing structures (reinforcing ribs): The general principle is basically the same as that of conventional injection molding. The only difference lies in the physical properties of the materials used. High-filler reinforcing materials such as glass fiber and carbon fiber have high viscosity and poor flowability. Ordinary injection molding equipment has limited adjustment of injection pressure and injection speed, resulting in insufficient melt filling. Material shortages, shrinkage marks, and voids are prone to occur at the edges and corners of the reinforcing structure and in areas where thin walls are covered. At the same time, high-fiber fillers are prone to uneven distribution, leading to significant differences in local toughness and strength of the product.

[0004] It is also necessary to add that: if the injection pressure is too low, it will be difficult to maintain the molding process pressure requirements, while if the injection pressure is too high, it will not be beneficial but will cause a series of negative problems in four dimensions: product quality, mold life, equipment safety, and production costs. Especially for the large injection molded parts with glass fiber / carbon fiber reinforced bumpers with built-in reinforcement structures that you are concerned about, the harm will be further amplified, such as flash, excessive internal stress concentration leading to local warping or brittle cracking of the product. The key issue is that excessive pressure will greatly increase the clamping force of the melt on the mold cavity, core, and reinforcing rib structure, and the demolding resistance will increase exponentially. However, the shrinkage rate of the built-in reinforcing structure and the plastic matrix material differs greatly. Conventional injection molding equipment has a simple layout of pressure holding and cooling systems, which cannot perform zoned pressure holding and balanced cooling for the composite layer structure. Furthermore, the residual stress inside the molded product is large, which can easily lead to warping, matrix cracking, and peeling off of the reinforcing layer after long-term use. This invention proposes a solution to this problem. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated injection molding equipment for bumpers with built-in reinforced structures, in order to solve the above-mentioned technical problems.

[0006] The objective of this invention can be achieved through the following technical solution: an integrated injection molding equipment for a bumper with built-in reinforced structure, comprising an injection molding machine assembly, a mold closing power mechanism, an injection mold assembly, and an electrical control system. The injection mold assembly includes a fixed mold and a moving mold that cooperate with each other. After the two are closed, they form an injection cavity adapted to a bumper with multiple built-in reinforced structures. The injection molding machine assembly is provided with an injection mechanism that communicates with the injection cavity. The injection cavity corresponds to multiple sets of different built-in reinforced structures and is divided into multiple reinforced structure feature zones according to the structural molding characteristics. Each of the reinforced structural feature partitions is embedded with a working condition acquisition unit, which is used to collect real-time pressure and temperature change data of the melt in the corresponding reinforced structural feature partition. The injection mechanism is equipped with a global injection linkage control system, which is used to perform a unified adjustment process of the overall injection working parameters of the entire injection molding process. The electronic control system establishes a linkage control module based on the working conditions of multiple reinforced structural feature zones. The linkage control module has a preset molding critical parameter library corresponding to the multiple reinforced structural feature zones. The linkage control module receives real-time data collected from all reinforced structural feature zones, performs overall fusion analysis on multiple sets of working condition data, and generates global injection control commands based on the molding critical requirements of all reinforced structural feature zones as control benchmarks. By adjusting the overall injection working parameters of the global injection linkage control system, the linkage adaptation between global molding parameters and the actual molding state of multiple sets of reinforced structures is achieved.

[0007] The further configuration is as follows: the division of the reinforced structural feature zones is based on the structural type of the built-in reinforced structure, the difficulty of melt filling, the material shrinkage characteristics, the molding defect risk level, and structural safety. The linkage control module determines the priority of molding requirements for each zone based on molding quality, takes the molding requirements of the zone with the highest priority strengthening structural features as the adjustment target, and takes the molding failure critical threshold of the other zones with strengthened structural features as the safety boundary.

[0008] Further configuration: the sensing surface of the working condition acquisition unit is flush with the cavity wall of the corresponding partition, without any protrusions, depressions or movable structures, and does not damage the integrity of the cavity forming surface.

[0009] Further configured as follows: the fusion analysis logic of the linkage control module includes six steps in sequence: multi-source data synchronization verification, forming state deviation identification, multi-zone demand priority determination, global adjustment safety boundary verification, global parameter adaptation scheme generation, and closed-loop feedback iterative optimization.

[0010] Further configured as follows: the linkage control module can synchronously adjust the overall injection working parameters, which include at least the temperature parameters of the entire melt plasticizing process, the power parameters of melt plasticizing, the injection pressure and rate curves of the entire injection stage, the basic pressure holding curve, the pressure holding switching node, and the melt metering control parameters.

[0011] Further configured as follows: a global conformal cooling water channel assembly is embedded inside the fixed mold and the moving mold. The global conformal cooling water channel assembly includes a main inlet water channel, a main return water channel, a mold temperature control unit, and conformal cooling branches for each region of the cavity. The linkage control module is based on the overall analysis results of temperature data in multiple reinforced structural feature zones. Taking the critical cooling requirements of all zones as a benchmark, it uniformly adjusts the global base temperature and total water flow of the main water inlet, and then matches and adjusts the flow distribution of each cooling branch.

[0012] Further configuration: The linkage control module has a built-in feedforward prediction model, which can pre-output the optimal adjustment direction of global parameters based on historical molding data, real-time working condition data, and material property data; the moving mold is equipped with a linkage demolding system, and the linkage control module adjusts the demolding pressure relief sequence, mold opening speed, and ejection action parameters in a unified manner based on the overall analysis results of multi-zone pressure data.

[0013] The present invention has the following beneficial effects: 1. Firstly, by dividing the mold into zones based on the molding characteristics of the built-in reinforced structure and collecting in-situ working conditions, a global linkage control mechanism is constructed with the key structural molding requirements as the core and the safety of the entire cavity molding as the boundary. In the entire injection molding process, based on the real-time pressure and temperature data of the melt in each zone, the process parameters of the entire process of injection, holding pressure and cooling are dynamically adapted and adjusted. This fundamentally solves the core contradictions of high-fill reinforced material bumper injection molding, such as material shortage and shrinkage in difficult-to-fill areas caused by single parameter control, and stress concentration and demolding difficulties caused by global pressure increase. At the same time, through the global coordinated control of the conformal cooling system, the uniform cooling of the entire cavity is achieved, which greatly reduces the residual stress inside the product and effectively avoids problems such as peeling of the reinforcing layer from the substrate and product warping and cracking. This significantly improves the structural strength, dimensional accuracy and long-term service stability of the bumper product.

[0014] 2. Secondly, through the built-in feedforward prediction model and the whole-process closed-loop feedback mechanism, the optimal adjustment direction of process parameters can be pre-output based on historical molding data, real-time working conditions and material characteristics, so as to realize the advance prediction and dynamic optimization of the injection molding process, significantly reduce the batch-to-batch molding quality fluctuations, and improve the stability of large-scale production. At the same time, the non-interference working condition acquisition design does not damage the integrity of the cavity molding surface, avoiding negative impacts on the appearance quality of the product and the mold life. The global linkage parameter control mode reduces ineffective process debugging and excessive parameter adjustment, effectively shortening the processing changeover debugging cycle. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the integrated injection molding equipment for a bumper with a built-in reinforcing structure proposed in this invention. Figure 2 This is a schematic diagram of the fixed mold structure in this invention; Figure 3 For the present invention Figure 2 A split diagram; Figure 4 This is a schematic diagram of the water system in the fixed mold of the present invention.

[0017] In the diagram: 1. Moving mold; 2. Fixed mold; 3. Bumper body; 4. Working condition acquisition unit; 5. Global conformal cooling water circuit assembly. Detailed Implementation

[0018] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1: The core principle of injection molding technology for bumpers with built-in reinforcement structures is as follows: the moving mold and the fixed mold are driven to close by the mold closing power mechanism. The two cooperate to form an injection cavity that matches the shape of the bumper and the built-in reinforcement structure. The injection mechanism of the injection molding machine assembly injects the uniformly plasticized reinforced composite material melt into the injection cavity at a preset pressure and rate. After filling, holding pressure, cooling and shaping, the mold is opened and the molded bumper product is ejected by the demolding mechanism to complete a single injection cycle. This invention is designed for bumpers made primarily of reinforcing materials. Conventional metal bumpers are produced by stamping processes. Bumpers made primarily of materials such as glass fiber and carbon fiber are made using injection molding processes. For high-filling reinforcing materials such as glass fiber and carbon fiber, these materials have high melt viscosity and poor flowability. Conventional injection molding equipment can only perform single global injection parameter control and cannot adapt to the different filling difficulties of different built-in reinforcing structure zones. For narrow flow channel areas such as the corners of reinforcing structures and thin-walled coverings, defects such as insufficient melt filling, material shortage, shrinkage marks, and internal voids are prone to occur. However, if the injection pressure and rate are increased globally to ensure the molding of difficult-to-fill areas, the clamping force of the melt on the mold cavity, core and reinforcing rib structure will increase exponentially, which will greatly increase the demolding resistance and cause problems such as flash, excessive internal stress concentration, local warping and even brittle cracking. It will also shorten the mold life, increase equipment energy consumption and production costs. The following technical solution is proposed to address these issues.

[0020] Reference Figures 1-4 Specifically, it includes the injection molding machine assembly, the mold clamping power mechanism, the injection mold assembly, and the electrical control system. The electrical actuators of the injection molding machine assembly, the mold clamping power mechanism, and the injection mold assembly are all electrically connected to the electrical control system, which enables automated control of the entire injection molding process. The injection molding machine assembly is equipped with a plasticizing mechanism and an injection mechanism. The nozzle of the injection mechanism is connected to the injection flow channel of the injection mold assembly and is used to inject the plasticized composite material melt into the injection cavity. The mold closing power mechanism adopts a servo hydraulic mold closing mechanism or an electric mold closing mechanism. Its power output end is fixedly connected to the moving mold 1 of the injection mold assembly and is used to drive the moving mold 1 to complete the mold closing, mold locking and mold opening actions. The injection mold assembly includes a fixed mold 2 and a moving mold 1 that cooperate with each other. The fixed mold 2 is fixedly installed on the fixed mold 2 mounting plate of the injection molding machine assembly, and the moving mold 1 is fixedly installed on the moving mold 1 mounting plate of the mold closing power mechanism. After the fixed mold 2 and the moving mold 1 are closed, their molding surfaces cooperate to form an injection cavity with multiple sets of built-in reinforced bumpers. The injection cavity is connected to the nozzle of the injection mechanism through the main runner and the branch runner. The above content covers the basic aspects of conventional injection molding processes.

[0021] In this invention, the main focus is on bumper structures with multiple reinforcement structures. Compared to other bumpers, these bumpers have multiple sets of different built-in reinforcement structures in the injection molding cavity, which are divided into multiple reinforcement structure feature zones according to the structural molding characteristics. The division of zones is based on factors such as the structural type of the built-in reinforcement structure, the difficulty of melt filling, the material shrinkage characteristics, the molding defect risk level, and the structural safety level, so that the built-in reinforcement structures in each zone have similar molding characteristics and molding quality requirements. Each reinforced structural feature zone is embedded with a working condition acquisition unit 4. The working condition acquisition unit 4 is used to collect real-time pressure and temperature change data of the melt within the corresponding reinforced structural feature zone. The sensing surface of the working condition acquisition unit 4 is completely flush with the cavity wall surface of the corresponding zone, without any protrusions, depressions, or movable structures, and does not damage the integrity of the cavity forming surface. Without affecting the product molding quality, it achieves in-situ real-time acquisition of the melt working condition inside the cavity. Its essence can be referred to as… Figure 3Several cutting blocks will be opened in the fixed mold 2 to form a "support" or "feedback" structure for the corresponding reinforced area of ​​the bumper body 3. Specifically, after the liquid material is injected into the molding cavity, the cutting blocks in the corresponding area can sense the pressure generated by the liquid material in the corresponding area. The injection mechanism is equipped with a global injection linkage control system, which includes a servo drive unit, a plasticizing control unit, an injection execution unit, and a pressure holding control unit. It is used to uniformly adjust the overall injection working parameters of the entire injection molding process. The electronic control system establishes a linkage control module based on the working conditions of multiple reinforced structural feature zones. The linkage control module has a preset molding critical parameter library corresponding to multiple reinforced structural feature zones. The molding critical parameter library stores preset parameters that match the material properties and structural features, such as the molding target parameters and molding failure critical thresholds for each zone. The signal input terminal of the linkage control module is connected to all working condition acquisition units 4 for communication. It can receive the acquisition data of all reinforced structural feature partitions in real time. The linkage control module performs overall fusion analysis on multiple sets of working condition data. Taking the molding critical requirements of all reinforced structural feature partitions as the control benchmark, it generates global injection control instructions. By adjusting the overall injection working parameters of the global injection linkage control system, it achieves linkage adaptation between global molding parameters and the actual molding state of multiple sets of reinforced structures. It should also be added that: because there are multiple reinforcing structures, the linkage control module takes molding quality as the benchmark and presets the molding requirement priority of each partition. During the control process, the molding requirement of the highest priority reinforcing structure feature partition is the core adjustment target, and the molding failure critical threshold of the other reinforcing structure feature partitions is the safety boundary. This ensures that after the global parameters are adjusted, the molding status of all partitions is within the safety threshold range, while meeting the molding quality requirements of the core structure. The linkage control module can synchronously adjust the injection working parameters, including the temperature parameters of the entire melt plasticizing process, the power parameters of melt plasticizing, the injection pressure and rate curves of the entire injection stage, the basic pressure holding curve, the pressure holding switching node, and the melt metering control parameters. The fixed mold 2 and the moving mold 1 are embedded with a global conformal cooling water channel assembly 5. The global conformal cooling water channel assembly 5 includes a main water inlet channel, a main water return channel, a mold temperature control unit, and conformal cooling branches for each region of the cavity. Each conformal cooling branch corresponds to one or more reinforced structural feature zones and is arranged conformally along the cavity forming surface of the corresponding zone to ensure uniform cooling. The moving mold 1 is equipped with a linkage demolding system, which includes a servo ejection mechanism, a mold opening servo control unit, and a pressure relief control unit. The signal output terminal of the linkage control module is connected to the linkage demolding system. Based on the overall analysis results of multi-zone pressure data, the demolding pressure relief sequence, mold opening speed, and ejection action parameters can be uniformly adjusted to ensure smooth demolding of the product and avoid deformation and cracking during the demolding process. This part is also a basic part of the injection molding process. The signal output terminal of the linkage control module is connected to the mold temperature control unit and the flow regulating valve of each conformal cooling branch. Based on the overall analysis results of temperature data of multiple reinforced structural feature zones, and taking the critical cooling requirements of all zones as the benchmark, the global base temperature and total water flow of the main water inlet are uniformly adjusted, and then the flow distribution of each cooling branch is matched and adjusted to achieve linkage adaptation between the global cooling system and the molding state of multiple zones.

[0022] The linkage control module has a built-in feedforward prediction model, which is trained based on historical molding data and material property data. It can combine real-time working condition data to pre-output the optimal adjustment direction of global parameters, realize feedforward prediction and early control of the injection molding process, and further improve the stability of the molding state.

[0023] Example 2: Based on the technical content of Example 1, the following detailed explanation is provided: S1: Preliminary preparation and zoning calibration. Based on the design parameters of the built-in reinforcing structure of the target bumper and the rheological and shrinkage characteristics of the reinforcing composite material used, complete the zoning of the reinforcing structure features of the injection cavity, calibrate the molding requirement priority and molding critical parameters of each zone, enter the molding critical parameter library of the linkage control module, and simultaneously complete the injection mold assembly, in-situ calibration of the working condition acquisition unit 4, and online debugging of the global injection linkage control system and the global conformal cooling water circuit component 5. S2: Mold closing and mold locking and melt plasticization. The mold closing power mechanism drives the moving mold 1 and the fixed mold 2 to close the mold and applies a preset mold locking force. The plasticizing mechanism of the injection molding machine assembly completes the melting and plasticizing of the reinforced composite material according to the preset process parameters. At the same time, the linkage control module uses the built-in feedforward prediction model, combined with material characteristic parameters and historical molding data, to pre-output the initial global injection parameters and initial cooling control parameters, which are then sent to the global injection linkage control system and the global conformal cooling water circuit assembly 5, respectively. S3: Injection filling closed-loop linkage control. During the process of the injection mechanism injecting molten material into the injection cavity according to the initial global injection parameters, the working condition acquisition unit 4 of each reinforced structural feature zone collects the melt pressure and temperature data of the corresponding area in real time and uploads them to the linkage control module. After the linkage control module performs fusion analysis on the multi-source working condition data, it dynamically generates global injection control instructions and adjusts the core injection working parameters in real time to achieve closed-loop linkage control of the entire filling process. S4: Pressure Holding and Cooling Coordinated Control: After the melt filling is completed, the pressure holding stage begins. The coordinated control module dynamically adjusts the pressure holding base curve and pressure holding switching node based on the real-time pressure monitoring data of each zone, so as to achieve precise matching between the global pressure holding parameters and the pressure holding requirements of multiple zones. At the same time, based on the real-time temperature monitoring data of each zone, the coordinated control module uniformly adjusts the inlet base temperature and total inlet flow of the global conformal cooling water circuit component 5, and matches and adjusts the flow distribution of each conformal cooling branch to achieve balanced cooling of the entire cavity. S5: Demolding control and model iteration optimization. After the pressure holding and cooling process is completed, the linkage control module generates demolding control instructions based on the final melt pressure data of each zone, adjusts the pressure relief sequence, mold opening speed and ejection action parameters of the linkage demolding system, and completes the smooth demolding of the product. At the same time, the linkage control module enters the working condition data, parameter adjustment data and product molding quality inspection data of the entire injection molding process into the historical molding database, iteratively optimizes the feedforward prediction model, and completes the closed-loop control of the entire process of a single injection molding cycle.

[0024] In addition to the above S1~S5, the following supplementary points are made: S2-1: The linkage control module receives the real-time pressure and temperature raw data uploaded by the working condition acquisition unit 4 of each zone, and then compares the real-time working condition data of each zone after calibration with the molding target parameters of the corresponding zone in the molding critical parameter library. It analyzes the deviation of the actual value and the target value of the two core dimensions of pressure and temperature, and fits the trend of the deviation to identify whether there is a situation in the current injection molding process where the molding state deviates from the preset requirements. For the zone that exceeds the allowable deviation threshold, it marks the deviation type, magnitude and trend, identifies the molding risk point, and provides accurate analysis basis for subsequent parameter control. S2-2: The linkage control module has preset priority weight coefficients corresponding to each partition. The weight coefficients are pre-calibrated based on the structural safety level and molding defect risk level of the partition's built-in reinforcement structure. The partition with higher structural safety requirements, greater impact on the overall performance of the product, and greater risk of molding defects has a higher weight coefficient. Combined with the real-time molding status deviation of each partition, the priority of molding demand for each partition is dynamically determined. Finally, the partition with the most urgent real-time molding demand and the greatest impact on the overall quality of the product is determined as the highest priority reinforcement structure feature partition in the current time sequence. Subsequent global parameter adjustments take the molding demand of this partition as the core optimization target, and prioritize the molding quality of the key structure of the product. S3-1: The linkage control module takes the molding requirements of the highest priority zone as the core. After initially determining the adjustment direction and adjustment range of the global control parameters, it does not directly issue the execution. Instead, it first performs molding failure safety boundary verification on all zones. Based on the preset parameter-condition mapping relationship, it predicts the changes in melt conditions of all other non-target zones under the parameter adjustment scheme. It verifies whether the predicted conditions of all zones are within the safe range of the molding failure critical threshold. If any zone exceeds the safety boundary, the parameter adjustment range is reduced and the verification is repeated until the proposed adjustment scheme can meet the molding safety requirements of all zones, ensuring that the parameter adjustment will not cause molding failure in other zones. S3-2: After the linkage control module completes the safety boundary verification, it takes minimizing the molding deviation of the highest priority partition as the core optimization goal, takes the molding safety boundary of all partitions as the constraint condition, and combines the pre-output results of the feedforward prediction model. Through multi-dimensional adaptation analysis, it selects the optimal global parameter adjustment scheme, transforms the scheme into an executable control command, and sends it to the global injection linkage control system, the global conformal cooling water circuit component 5 and the linkage demolding system respectively. It simultaneously completes the dynamic adjustment of the core working parameters of the entire injection molding process, and realizes the precise adaptation of global molding parameters and the actual molding state of multiple sets of reinforcing structures. For example: Suppose that the A reinforcement feature section is the highest priority section, then the molding quality of this section should be given priority. At the same time, the molding quality of other areas should also be taken into account. This can be understood as: to improve the molding quality of section A as much as possible (section A has pressure deficiency), the injection pressure or holding pressure needs to be appropriately increased. At the same time, the molding quality of other areas should also be taken into account, and section B should not be over-pressured to a certain extent. Suppose that the present invention limits the pressure over-limit rate of a single reinforcement feature section to 1.13, which means that: under the theoretical state, the upper limit threshold of pressure in section B is X. Then, on the basis of ensuring the molding quality of section A, the pressure in section B should not exceed 1.13*X. In light of the above, the following additional points should be made: Reference Figure 3The structure of the bumper body 3 is relatively complex, so it must contain multiple reinforced structural feature zones of different degrees. In S1, the zones need to be divided according to the shape of the bumper body 3, and the priority of each zone needs to be assigned. Taking zone A as an example, if there is an abnormality in zone A and the injection pressure needs to be increased, the overall injection pressure adjustment process needs to follow the coupling formula {Bi, Ci, Di...Zi}. The coupling formula does not involve any calculation process, but presents a conditional progressive reference process. Bi, Ci, Di, and Zi represent the physical characteristics (structure type, melt filling difficulty, material shrinkage characteristics, molding defect risk level and structural safety) in the zone division process, and i represents the number of a single zone. Each numbered partition must also have its own molding requirements. Therefore, it is necessary to further set the upper / lower limits associated with the molding quality. When adjusting the molding quality of area A, it is also necessary to take into account other partitions. The upper / lower limits of other partitions are different. Therefore, when other partitions constrain area A at the same time, there are also constraint relationships between other partitions.

[0025] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. An integrated injection molding equipment for a bumper with built-in reinforced structure, comprising an injection molding machine assembly, a mold closing power mechanism, an injection mold assembly, and an electrical control system, wherein the injection mold assembly comprises a fixed mold (2) and a moving mold (1) that cooperate with each other, and after the two are closed, they form an injection cavity adapted to have multiple sets of built-in reinforced structure bumpers, and the injection molding machine assembly is provided with an injection mechanism communicating with the injection cavity, characterized in that: The injection molding cavity contains multiple sets of different built-in reinforcing structures and is divided into multiple reinforcing structure feature zones according to structural molding characteristics. Each of the reinforced structural feature partitions is embedded with a working condition acquisition unit (4), which is used to collect real-time pressure and temperature change data of the melt in the corresponding reinforced structural feature partition. The injection mechanism is equipped with a global injection linkage control system, which is used to perform a unified adjustment process of the overall injection working parameters of the entire injection molding process. The electronic control system establishes a linkage control module based on the working conditions of multiple reinforced structural feature zones. The linkage control module has a preset molding critical parameter library corresponding to the multiple reinforced structural feature zones. The linkage control module receives real-time data collected from all reinforced structural feature zones, performs overall fusion analysis on multiple sets of working condition data, and generates global injection control commands based on the molding critical requirements of all reinforced structural feature zones as control benchmarks. By adjusting the overall injection working parameters of the global injection linkage control system, the linkage adaptation between global molding parameters and the actual molding state of multiple sets of reinforced structures is achieved.

2. The integrated injection molding equipment for a bumper with a built-in reinforced structure according to claim 1, characterized in that, The division of the reinforced structural feature zones is based on factors including the structural type of the built-in reinforced structure, the difficulty of melt filling, the material shrinkage characteristics, the risk level of molding defects, and structural safety.

3. The integrated injection molding equipment for a bumper with a built-in reinforced structure according to claim 2, characterized in that, The linkage control module determines the priority of molding requirements for each zone based on molding quality, takes the molding requirements of the zone with the highest priority strengthening structural features as the adjustment target, and takes the molding failure critical threshold of the other zones with strengthened structural features as the safety boundary.

4. The integrated injection molding equipment for a bumper with a built-in reinforcing structure according to claim 3, characterized in that, The sensing surface of the working condition acquisition unit (4) is flush with the cavity wall of the corresponding partition, without any protrusions, depressions or movable structures, and does not damage the integrity of the cavity forming surface.

5. The integrated injection molding equipment for a bumper with a built-in reinforced structure according to claim 4, characterized in that, The fusion analysis logic of the linkage control module includes six steps in sequence: multi-source data synchronization verification, forming state deviation identification, multi-zone demand priority determination, global adjustment safety boundary verification, global parameter adaptation scheme generation, and closed-loop feedback iterative optimization.

6. The integrated injection molding equipment for a bumper with a built-in reinforcing structure according to claim 5, characterized in that, The linkage control module can synchronously adjust the overall injection working parameters, which include at least the temperature parameters of the entire melt plasticizing process, the power parameters of melt plasticizing, the injection pressure and rate curves of the entire injection stage, the basic pressure holding curve, the pressure holding switching node, and the melt metering control parameters.

7. The integrated injection molding equipment for a bumper with a built-in reinforced structure according to claim 6, characterized in that, The fixed mold (2) and the moving mold (1) are equipped with a global conformal cooling water channel assembly (5), which includes a main water inlet channel, a main water return channel, a mold temperature control unit, and conformal cooling branches for each region of the cavity.

8. The integrated injection molding equipment for a bumper with a built-in reinforced structure according to claim 7, characterized in that, The linkage control module is based on the overall analysis results of temperature data in multiple reinforced structural feature zones. Taking the critical cooling requirements of all zones as a benchmark, it uniformly adjusts the global base temperature and total water flow of the main water inlet, and then matches and adjusts the flow distribution of each cooling branch.

9. The integrated injection molding equipment for a bumper with a built-in reinforced structure according to claim 8, characterized in that, The linkage control module has a built-in feedforward prediction model, which can pre-output the optimal adjustment direction of global parameters based on historical molding data, real-time working condition data, and material property data.

10. The integrated injection molding equipment for a bumper with a built-in reinforcing structure according to claim 9, characterized in that, The moving mold (1) is equipped with a linkage demolding system. The linkage control module adjusts the demolding pressure relief sequence, mold opening speed and ejection action parameters in a unified manner based on the overall analysis results of multi-zone pressure data.

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