Continuous injection mold

Abstract

The invention discloses a continuous injection mold. The continuous injection mold comprises a front mold, a rear mold and a control system, the rear mold base is provided with a framework mold cavity, a soft rubber mold cavity, a supporting plate and a transposition structure, the supporting plate achieves station switching through stretching and rotating of a top roller, and a sliding block is matched with an abutting structure of the rear mold to achieve automatic demolding; the control system comprises a position detection module, a data processing module, a driving control module, a fault early warning module and a self-adaptive adjustment module. Through linkage of the transposition structure and the control system, automatic switching of the injection molding position of the supporting plate and automatic demolding of the sliding block are achieved, manual intervention is reduced, time loss and operation errors caused by traditional manual transposition are avoided, the automation degree and continuity of the production process are remarkably improved, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air damper processing, and particularly to a continuous injection mold. Background Art

[0002] An air damper mold is a tool for manufacturing air dampers. Air dampers are widely used in many fields such as air conditioning systems, ventilation ducts, and automotive air conditioners, mainly for controlling the air flow direction, flow rate, and adjusting the air volume. The air damper mold is the key equipment for realizing the mass production of air dampers.

[0003] After the first-shot injection molding of the traditional air damper injection mold, it is necessary for manual labor or a manipulator to move the skeleton from one mold cavity to another. This process not only increases the operation time but also easily causes product damage or inaccurate positioning due to improper operation, affecting production efficiency. Moreover, in the traditional air damper injection mold, the demolding of the product usually relies on a simple mechanical structure or manual operation, which easily causes damage such as scratches and deformation to the product during the demolding process, thus affecting the product quality.

[0004] Based on the above defects, a continuous injection mold is provided. Summary of the Invention

[0005] The purpose of the present invention is to propose a continuous injection mold in order to solve the above problems.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solution: A continuous injection mold includes a front mold and a rear mold. The rear mold includes a base, on which a skeleton mold cavity and a soft rubber mold cavity are installed. A pallet and a transposition structure for acting on the pallet are provided on the base. The movement of the pallet is controlled by the transposition structure to switch the injection position of the product. Two pairs of sliders are slidably arranged on the pallet. An abutting structure that cooperates with each other is provided between the sliders and the rear mold. When the front mold and the rear mold are opened, the two sliders corresponding to the soft rubber mold cavity move to separate from the product under the action of the abutting structure. The transposition structure includes a top rod and a control system for controlling the telescopic movement and rotation of the top rod. The control system includes a hydraulic telescopic mechanism, an electric servo mechanism, and a controller installed in the base.

[0007] Preferably, the control system includes: A position detection module for real-time monitoring of the movement distance and rotation angle of the pallet, including an encoder installed on the output shaft of the electric servo mechanism and travel switches arranged at the edges of the skeleton mold cavity and the soft rubber mold cavity workstations; A data processing module for calculating the telescopic amount and rotation angle of the top rod according to the preset workstation coordinates, and adjusting the telescopic stroke of the hydraulic telescopic mechanism, the rotation angle and rotation speed of the electric servo mechanism according to the calculated telescopic amount and rotation angle. A drive control module is used to synchronously control a hydraulic telescopic mechanism and an electric servo mechanism to execute adjustment instructions, so as to switch the pallet to a target injection position.

[0008] Preferably, the abutting structure includes a cavity formed in the slider, a pair of first offsets corresponding to the skeleton cavity are provided on the rear mold, and a pair of second offsets corresponding to the soft rubber cavity are provided, and an elastic stopper for cooperating with the first offset and the second offset is arranged in the slider.

[0009] Preferably, the elastic stopper includes two stoppers slidably arranged in the slider, a chamber for cooperating with the stopper to slide is formed in the slider, and a compression spring for acting on the stopper is embedded in the chamber.

[0010] Preferably, when the second offset is inserted into the cavity, the stopper is compressed into the chamber, and when the second offset slides out of the cavity, the stopper is acted on by the second offset to drive the slider to move and separate from the product, and an avoidance groove for avoiding the slider is formed in the first offset.

[0011] Preferably, the control system further includes a fault warning module, and the fault warning module includes: A pressure anomaly monitoring unit is used to be linked with the pressure sensor of the hydraulic telescopic mechanism. When the telescopic thrust of the ejector rod exceeds a preset safety threshold, it triggers an audible and visual alarm and cuts off the hydraulic power. A position timeout monitoring unit is used to, based on the travel switch signal, if the pallet does not reach the target station within the set time, automatically stop the machine and display a "position change timeout" fault code on the touch screen. A spring state monitoring unit is used to real-time monitor the pre-tightening force of the compression spring through a micro pressure sensor in the slider. When the pre-tightening force deviates from the normal range, a "spring pre-tightening force anomaly" fault code is displayed on the touch screen.

[0012] Preferably, the control system is provided with an adaptive adjustment module, including: A wear compensation unit: based on the pallet movement error data fed back by the encoder, automatically calculates the compensation pulse number of the ejector rod servo motor, and real-time corrects the positioning deviation caused by mechanical wear. A pressure dynamic matching unit is used to, according to different injection stages of the skeleton cavity and the soft rubber cavity, cooperate with the hydraulic telescopic mechanism to dynamically adjust the supporting force of the ejector rod.

[0013] Preferably, the control system realizes data interaction between modules through a PROFINET bus, wherein: The encoder data of the position detection module is transmitted to the data processing module through a real-time Ethernet protocol; The instruction signal of the drive control module is sent to the hydraulic servo valve and the servo motor driver through a hard real-time channel; The status data of the fault warning module is uploaded to the factory MES system through a cyclic communication mechanism.

[0014] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows: 1. The present invention realizes the automatic switching of the injection position of the pallet and the automatic demolding of the slider through the linkage of the transposition structure and the control system, reduces manual intervention, avoids the time loss and operation errors of traditional manual transposition, significantly improves the automation degree and coherence of the production process, and improves production efficiency.

[0015] 2. The present invention monitors the movement of the pallet in real time through the position detection module, and precisely adjusts the movement of the ejector rod in combination with data processing and the PID control algorithm to ensure the accuracy of the station switching; the abutting structure realizes stable demolding through the cooperation of the elastic stopper and the counterweight, reduces product damage, and improves the appearance quality and molding consistency of the product.

[0016] 3. The fault warning module of the present invention monitors the pressure, position and spring state in real time, triggers alarms or stops in time, reduces the risk of equipment failure; the adaptive adjustment module dynamically compensates for mechanical wear and environmental impacts, maintains the stability of the long-term operation of the mold, extends the service life and adapts to diverse production requirements.

[0017] 4. Through the cooperation of the elastic stopper and the counterweight, the present invention realizes the automatic movement of the slider and the smooth demolding of the product, reduces the influence of human factors, ensures the stability and consistency of the demolding process, and thus improves the appearance quality and performance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shows a three-dimensional structural schematic diagram of a mold provided by the present invention; Figure 2 Shows a schematic diagram of the jacking structure of a pallet provided by the present invention; Figure 3 Shows a top view structural schematic diagram of a mold provided by the present invention; Figure 4 Shows a top sectional structural schematic diagram of a slider provided by the present invention; Figure 5 Shows a side sectional structural schematic diagram of a slider provided by the present invention; Figure 6 Shows a schematic block diagram of the control system provided by the present invention.

[0019] Legend Explanation: 1. Base; 2. Skeleton cavity; 3. Soft rubber cavity; 4. Ejector rod; 5. Pallet; 6. Slider; 7. Cavity groove; 8. Stopper; 9. Compression spring; 10. First counterweight; 11. Second counterweight. DETAILED DESCRIPTION OF THE INVENTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0021] Please refer to Figures 1 - 6 , the present invention provides a technical solution: a continuous injection mold, including a front mold and a rear mold. The rear mold includes a base 1, on which a skeleton mold cavity 2 and a soft rubber mold cavity 3 are installed. A support plate 5 and a transposition structure for acting on the support plate 5 are provided on the base 1. By controlling the movement of the support plate 5 through the transposition structure, the injection position of the product is switched. By controlling the movement of the support plate 5 through the transposition structure, the injection position of the product is switched; Two pairs of sliders 6 are slidably arranged on the support plate 5, and a mutually cooperating abutting structure is provided between the sliders 6 and the rear mold. When the front mold and the rear mold are opened, the two sliders 6 corresponding to the soft rubber mold cavity 3 move and separate from the product under the action of the abutting structure; The transposition structure includes a top rod 4 and a control system for controlling the telescopic and rotational movement of the top rod 4; the control system includes a hydraulic telescopic mechanism, an electric servo mechanism and a controller installed in the base 1.

[0022] Start the injection molding machine to make the front mold and the rear mold close tightly. At this time, the support plate 5 is in the initial position under the control of the transposition structure, and the sliders 6 are also in the position to be injected. The injection molding machine heats the pre-treated plastic raw material to a molten state, and then injects the molten plastic into the cavity formed by the front mold and the rear mold at a set injection pressure and speed. The product first forms an air door skeleton in the skeleton mold cavity 2. After the skeleton injection is completed, the sliders 6 on the support plate 5 are driven by the transposition structure to switch the product to the next injection position, and then the plastic is filled into the soft rubber mold cavity 3 through the injection molding machine to form the soft rubber part.

[0023] The skeleton mold cavity 2 and the soft rubber mold cavity 3 are respectively used to form different parts of the air door. The function of the support plate 5 is to carry and support the sliders 6. The transposition structure is used to control the movement of the support plate 5, so as to realize the switching of the injection position of the product. During the mold opening process, the abutting structure plays a role, so that the two sliders 6 corresponding to the soft rubber mold cavity 3 move and separate from the product, so as to realize the demolding of the product.

[0024] By controlling the movement of the support plate 5 through the transposition structure, the switching of the injection position of the product is realized. This design can meet the injection requirements at different positions in the same mold, improve the versatility and flexibility of the mold, reduce the number of mold replacements, and thus improve the production efficiency.

[0025] The design of the abutting structure enables the slider 6 to automatically separate from the product during mold opening. This automatic demolding mechanism can effectively prevent the product from being damaged during demolding, improving the quality and consistency of the product. At the same time, automatic demolding also reduces manual operation, increases the degree of automation in the production process, and further improves production efficiency.

[0026] Specifically, as Figure 2 shown, the transposition structure includes a top rod 4 and a control system installed in the base 1 for controlling the telescoping and rotation of the top rod 4; the control system includes a hydraulic telescoping mechanism, an electric servo mechanism, and a controller installed in the base 1.

[0027] The top rod 4 is a key component of the transposition structure. Its main function is to directly contact the pallet 5 and push or pull the pallet 5 through its own telescoping and rotation to achieve the switching of the position of the pallet 5.

[0028] The hydraulic telescoping mechanism and the electric servo mechanism are prior arts. Among them, the hydraulic telescoping mechanism uses the pressure of hydraulic oil to achieve the telescoping action of the top rod 4. The hydraulic system has the characteristics of large force and fast response, and can provide sufficient thrust and pulling force for the top rod 4 to ensure that the pallet 5 can move smoothly and accurately to the specified position; the electric servo mechanism is used to control the rotation of the top rod 4. The electric servo motor has the characteristics of high precision, high response speed, and programmable control, and can accurately control the rotation angle and speed of the top rod 4, so as to achieve the precise position switching of the pallet 5.

[0029] Specifically, as Figure 3 and Figure 4 shown, the abutting structure includes a cavity 7 formed in the slider 6. On the rear mold, there are provided a pair of first offsets 10 corresponding to the skeleton mold cavity 2 and a pair of second offsets 11 corresponding to the soft rubber mold cavity 3. An elastic stopper for cooperating with the first offset 10 and the second offset 11 is provided in the slider 6; On the rear mold, there are provided a pair of first offsets 10 and a pair of second offsets 11, corresponding to the skeleton mold cavity 2 and the soft rubber mold cavity 3 respectively. These offsets interact with the cavity 7 in the slider 6 during the opening and closing of the mold. The elastic stopper is used to cooperate with the second offset 11 to realize the movement of the slider 6 during mold opening.

[0030] The elastic stopper includes two stoppers 8 slidably provided in the slider 6. A cavity for cooperating with the sliding of the stopper 8 is formed in the slider 6, and a compression spring 9 acting on the stopper 8 is embedded in the cavity. When the second offset 11 is inserted into the cavity 7, the stopper 8 is compressed into the cavity. When the second offset 11 slides out of the cavity 7, the stopper 8 is acted on by the second offset 11, driving the slider 6 to move and separate from the product. An avoidance groove for avoiding the slider 6 is formed in the first offset 10.

[0031] During the injection molding process, the front mold and the rear mold are closed. The slider 6 is in its initial position, and the stopper 8 is held in the cavity 7 under the action of the compression spring 9. The first offset 10 and the second offset 11 cooperate with the cavity 7 in the slider 6 respectively to ensure the stability of the slider 6 during the injection molding process.

[0032] When the mold starts to open, the second offset 11 gradually slides out of the cavity 7 in the slider 6. During the process of the second offset 11 sliding out of the cavity 7, the stopper 8 is pushed by the second offset 11, driving the stopper 8 to move outwards. The movement of the stopper 8 drives the slider 6 to slide along the support plate 5, separating the slider 6 from the molded product, thereby realizing the demolding of the product.

[0033] A clearance groove is formed in the first offset 10 for avoiding the slider 6 during the movement of the slider 6, ensuring that the position of the slider 6 relative to the support plate 5 does not change, realizing the stable erection of the product after the skeleton injection molding, so as to meet the switching of the injection position of the product.

[0034] Through the design of the elastic stopper, this abutting structure realizes the automatic movement of the slider 6 during the mold opening process, realizes the automatic separation from the product after the soft rubber injection molding is completed, improves the demolding efficiency and reliability of the injection mold. This design not only improves the production efficiency, but also ensures the quality of the product and the stability of the mold.

[0035] Specifically, as Figure 6 shown, the control system includes: A position detection module for real-time monitoring of the moving distance and rotation angle of the support plate 5, including an encoder installed on the output shaft of the electric servo mechanism and a travel switch arranged at the edges of the skeleton mold cavity 2 and the soft rubber mold cavity 3 workstations; specifically, the encoder is used to collect the rotation angle θ of the ejector rod 4 in real time, and the travel switch is used to trigger a signal when the support plate 5 reaches the target workstation, and the signal type is specifically a 24V level signal; A data processing module for calculating the telescopic amount and rotation angle of the ejector rod according to the preset workstation coordinates, and adjusting the telescopic stroke of the hydraulic telescopic mechanism, the rotation angle and speed of the electric servo mechanism according to the calculated telescopic amount and rotation angle, specifically including: A coordinate conversion unit for obtaining the preset workstation coordinates of the skeleton mold cavity 2, recording this coordinate as the origin O(0,0); obtaining the workstation coordinates of the soft rubber mold cavity 3 and recording it as P(X,Y); obtaining the current position of the ejector rod 4 and recording it as Q(x,y); Based on this, calculating the target rotation angle θ and the target telescopic amount L, the formula is: , .

[0036] A drive control module for synchronously controlling the hydraulic telescopic mechanism and the electric servo mechanism to execute the adjustment instructions, so that the support plate 5 is switched to the target injection position, including: The PID control unit is used to switch the pallet 5 to the target injection position according to the current pressure and target pressure of the hydraulic telescopic mechanism and the electric servo mechanism, and the current speed and target speed of the servo motor. Specifically: For the hydraulic telescopic mechanism, according to the current pressure P1 and the target pressure P2, the control quantity is output through the following algorithm ; where represents the control quantity output to the hydraulic telescopic mechanism at time t, , , respectively represent the proportional, integral, and differential coefficients corresponding to the hydraulic telescopic mechanism; For the electric servo mechanism, according to the current speed ω1 and the target speed ω2, the control quantity is output through the following algorithm ; where represents the control quantity output to the electric servo mechanism at time t, , , respectively represent the proportional, integral, and differential coefficients corresponding to the electric servo mechanism.

[0037] The control system further includes a fault warning module, which includes: The pressure anomaly monitoring unit is used to be linked with the pressure sensor of the hydraulic telescopic mechanism. When the telescopic thrust of the ejector rod 4 exceeds the preset safety threshold, it triggers an audible and visual alarm and cuts off the hydraulic power; The position timeout monitoring unit is used to based on the travel switch signal. If the pallet 5 does not reach the target station within the set time, it automatically shuts down and displays the "position change timeout" fault code on the touch screen; The spring state monitoring unit is used to real-time monitor the pre-tightening force of the compression spring 9 through the micro pressure sensor in the slider 6. When the pre-tightening force deviates from the normal range, it displays the "spring pre-tightening force anomaly" fault code on the touch screen.

[0038] It should be noted that the control system obtains the pallet movement data in real time through the position detection module, calculates the control quantity through the coordinate conversion and PID control algorithm of the data processing module, and accurately adjusts the hydraulic and servo mechanisms to realize the pallet station switching; at the same time, the fault warning module real-time monitors the pressure, position and spring state, and triggers protection measures such as alarm and shutdown in case of anomalies, ensuring the accuracy, stability and safety of the mold operation.

[0039] Specifically, the control system is provided with an adaptive adjustment module, including: The wear compensation unit: based on the pallet 5 movement error data fed back by the encoder, automatically calculates the compensation pulse number of the ejector rod 4 servo motor, and real-time corrects the positioning deviation caused by mechanical wear; Specifically, obtain the encoder resolution, which represents the number of pulses output by the encoder per revolution and is a key parameter for calculating the compensation pulse number; identify the actual travel measured by the encoder and record it as , set the theoretical travel for calculating the preset coordinates and record it as , and record the deviation between the actual travel and the theoretical travel as the theoretical deviation value ; obtain the preset transmission ratio between the motor and the lead screw; obtain the lead of the lead screw, i.e., the feed per revolution; calculate the compensation pulse number accordingly, and the formula is: ; Send the calculated compensation pulse number to the servo motor driver, and the driver adjusts the operation of the servo motor in real time according to the compensation pulse number, thereby correcting the movement of the ejector rod 4 and realizing the correction of the positioning deviation of the pallet 5; Specifically, a calibration period can also be set. When each calibration period is reached, record the deviation between the theoretical coordinates and the actual coordinates of each station; fit the wear curve by the least squares method to obtain the functional relationship between the wear amount and the number of runs or time; based on this wear curve, it can be used to predict the wear amount within the future set period and adjust the compensation pulse number in advance to achieve more accurate wear compensation control; It should be noted that the compensation pulse number is calculated through the travel deviation feedback by the encoder, the movement trajectory of the ejector rod is corrected in real time, and the positioning deviation caused by mechanical wear is eliminated; combined with the calibration period and wear curve prediction, the compensation amount is adjusted in advance to achieve dynamic wear compensation and extend the mold life; The pressure dynamic matching unit is used to dynamically adjust the supporting force of the ejector rod 4 in coordination with the hydraulic telescopic mechanism according to the different injection molding stages of the skeleton cavity 2 and the soft rubber cavity 3. The specific working mechanism is as follows: Obtain the preset injection pressure and record it as , and this parameter is determined according to the injection material characteristics and product process requirements; identify the effective area of the hydraulic cylinder in the hydraulic telescopic mechanism and record it as A, and identify the output efficiency of the hydraulic telescopic mechanism (reflecting the energy conversion and transmission loss of the hydraulic system), set the safety factor k1 of the mold (used to cope with uncertain loads during injection molding to ensure the safety of the mold) and the pressure coefficient k2 of the hydraulic telescopic mechanism during the transposition stage (used to adapt to the low-load requirements during transposition), and thus constitute the pressure dynamic matching algorithm, and the formula is: , ; where F represents the supporting force of the ejector rod, represents the hydraulic pressure that the hydraulic telescopic mechanism needs to output; If it is in the injection molding stage, the output pressure of the hydraulic telescopic mechanism is dynamically regulated through the proportional valve. According to the pressure dynamic matching algorithm, the hydraulic pressure is maintained at the corresponding level to ensure the stability of the mold and the product forming quality during injection molding; If in the transposition stage, adjust the output pressure of the hydraulic telescopic mechanism to the corresponding level; If it is recognized that after the injection molding is completed and the transposition stage is entered; the transposition stage is used to trigger the use of the pressure switching transition algorithm, and the expression is: , where, is the time constant, specifically taken as 0.5 seconds; through this algorithm, the smooth transition of pressure between the injection molding stage and the transposition stage is realized, ensuring the smooth operation of the equipment.

[0040] It should be noted that according to the mechanical requirements of the injection molding stage and the transposition stage, the ejector rod support force is dynamically switched to reduce energy consumption and mechanical wear; through the pressure transition algorithm, pressure mutation is avoided, ensuring the smooth operation of the equipment and improving production safety and mold reliability.

[0041] Specifically, the control system realizes data interaction between modules through the PROFINET bus, where: The encoder data of the position detection module is transmitted to the data processing module through the real-time Ethernet protocol; The command signal of the drive control module is sent to the hydraulic servo valve and the servo motor driver through the hard real-time channel; The status data of the fault warning module is uploaded to the factory MES system through the cyclic communication mechanism.

[0042] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A continuous injection mold, comprising a front mold and a rear mold, characterized in that, The rear mold comprises a base (1), a skeleton mold cavity (2) and a soft rubber mold cavity (3) are mounted on the base (1), a support plate (5) and a transposition structure for an active support plate (5) are arranged on the base (1), and the movement of the support plate (5) is controlled by the transposition structure to switch the injection molding position of the product; Two pairs of sliders (6) are slidably arranged on the support plate (5), and mutually cooperating abutment structures are arranged on the sliders (6) and the rear mold. When the front mold and the rear mold are opened, the two sliders (6) corresponding to the soft rubber mold cavity (3) move and separate from the product under the action of the abutment structure; The transposition structure comprises a top rod (4) and a control system for controlling the extension and rotation of the top rod (4); the control system comprises a hydraulic extension mechanism and an electric servo mechanism and a controller installed in the base (1).

2. The continuous injection mold according to claim 1, characterized in that, The control system comprises: A position detection module, used for real-time monitoring of the moving distance and rotation angle of the support plate (5), comprising an encoder installed on the output shaft of the electric servo mechanism and a travel switch arranged at the edges of the skeleton mold cavity (2) and the soft rubber mold cavity (3); A data processing module, used to calculate the telescopic amount and rotation angle of the push rod (4) according to the preset workstation coordinates, and to adjust the telescopic stroke of the hydraulic telescopic mechanism, the rotation angle and rotation speed of the electric servo mechanism according to the calculated telescopic amount and rotation angle; The drive control module is used to synchronously control the hydraulic telescopic mechanism and the electric servo mechanism to execute adjustment instructions so that the support plate (5) is switched to a target injection molding position.

3. A continuous injection mold according to claim 1, characterized in that, The abutment structure comprises a cavity (7) formed in the slider (6); the rear mold is provided with a pair of first offset pins (10) corresponding to the skeleton mold cavity (2), and a pair of second offset pins (11) corresponding to the soft rubber mold cavity (3); and the slider (6) is provided with an elastic stopper used in conjunction with the first offset pins (10) and the second offset pins (11).

4. A continuous injection mold according to claim 3, wherein, The elastic stopper comprises two stoppers (8) slidably arranged in a slide block (6); a cavity for slidingly cooperating with the stoppers (8) is formed in the slide block (6); a compression spring (9) for acting on the stoppers (8) is embedded in the cavity.

5. A continuous injection mold according to claim 4, characterized in that, When the second offset pin (11) is inserted into the cavity (7), the stopper (8) is compressed into the cavity; when the second offset pin (11) slides out of the cavity (7), the stopper (8) is acted upon by the second offset pin (11) to drive the slider (6) to move and separate from the product; and a clearance groove is formed in the first offset pin (10) to avoid the slider (6).

6. A continuous injection mold according to claim 2, characterized in that, The control system further includes a fault warning module, which includes: A pressure abnormality monitoring unit, used to work in conjunction with a pressure sensor of the hydraulic telescopic mechanism, and to trigger an audible and visual alarm and cut off the hydraulic power when the telescopic thrust of the top rod (4) exceeds a preset safety threshold; A position timeout monitoring unit, which is used to automatically stop the machine and display a "position change timeout" fault code on the touch screen if the pallet (5) fails to reach the target position within a set time based on the signal of the travel switch; The spring state monitoring unit is used to monitor the preload force of the compression spring (9) in real time through a micro pressure sensor in the slider (6), and when the preload force deviates from the normal range, a "spring preload force abnormality" fault code is displayed on the touch screen.

7. A continuous injection mold according to claim 2, wherein The control system is provided with an adaptive adjustment module, including: Wear compensation unit: Based on the moving error data of the pallet (5) fed back by the encoder, automatically calculate the compensation pulse number of the servo motor of the top rod (4), and real-time correct the positioning deviation caused by mechanical wear; Pressure dynamic matching unit, which is used to dynamically adjust the supporting force of the top rod (4) in cooperation with the hydraulic telescopic mechanism according to different injection molding stages of the skeleton cavity (2) and the soft rubber cavity (3).

8. A continuous injection mold according to claim 6, wherein, The control system realizes data interaction between modules through the PROFINET bus, where: The encoder data of the position detection module is transmitted to the data processing module through the real-time Ethernet protocol; The command signal of the drive control module is sent to the hydraulic servo valve and the servo motor driver through the hard real-time channel; The status data of the fault warning module is uploaded to the factory MES system through the cyclic communication mechanism.

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