Intelligent temperature control injection mold and its automatic demolding system

Abstract

The application discloses an intelligent temperature control injection mold and an automatic demolding system thereof, and relates to the field of injection molds.The device comprises a movable mold, a static mold, two groups of temperature control modules and two groups of pipeline input assembly boxes.The movable mold is slidably connected in the static mold.The two groups of temperature control modules are installed on the movable mold and the static mold.The temperature control module comprises a main input circuit, multiple groups of regional heating pipelines and multiple groups of cold water injection ends corresponding to the regional heating pipelines.The cold water injection ends are arranged on the input side of each group of regional heating pipelines.The two groups of pipeline input assembly boxes are respectively installed on the outer sides of the two groups of temperature control modules.The device can set temperature parameters according to regions and realize gradient cooling.The temperature control and demolding linkage logic is established, the actual temperature of the mold and the cavity pressure are taken as the demolding triggering conditions, and the manual setting of the fixed time is replaced.The demolding process can collect the ejection parameters in real time and dynamically adjust them.A multi-parameter sensing closed-loop control system is constructed, the mold state is monitored in real time, and the process action is adjusted.

Description

Technical Field

[0001] The present invention relates to the field of injection molds, and particularly to an intelligent temperature-controlled injection mold and its automatic demolding system. Background Art

[0002] An injection mold is the core equipment in the injection molding process. Mold temperature control and product demolding are key links affecting the molding process. Most existing injection molds adopt a single integral temperature control structure. Usually, only simple connected cooling water channels are arranged inside the mold, and the mold is cooled by external cooling water; although some molds are provided with heating circuits, most of them are for global synchronous heating and cannot independently control the temperature of the cavity and the core. At the same time, most existing demolding devices are independently arranged mechanical ejection mechanisms, and only rely on cylinders or oil cylinders to directly drive the ejector pins to complete the ejection action. The temperature control system and the demolding system are independent of each other and have no linkage relationship, and the overall structure and control method are relatively simple.

[0003] The temperature control method in the prior art is single and cannot be independently regulated in zones. The temperatures of the mold cavity and the core change synchronously, making it difficult to adapt to the temperature requirements of different molding stages; secondly, the cooling process lacks gradient control, and only global rapid cooling is adopted, which easily leads to inconsistent cooling rates in different regions of the mold; thirdly, the temperature control and demolding are independent of each other and have no linkage logic, and the demolding timing depends on manual experience setting and cannot be triggered according to the actual temperature state of the mold; fourthly, the demolding process is a single mechanical ejection, and the ejection force and ejection speed are fixed and cannot be adjusted according to the molding state; fifthly, there is a lack of multi-parameter sensing and closed-loop control of temperature, pressure, etc., and the mold state cannot be monitored in real time and the process actions cannot be dynamically adjusted. In view of the above situations, the present invention provides an intelligent temperature-controlled injection mold and its automatic demolding system to solve the above problems. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an intelligent temperature-controlled injection mold and its automatic demolding system, which solves the problems in the prior art that the temperature control method is single and cannot be independently regulated in zones, the temperatures of the mold cavity and the core change synchronously, making it difficult to adapt to the temperature requirements of different molding stages; secondly, the cooling process lacks gradient control, and only global rapid cooling is adopted, which easily leads to inconsistent cooling rates in different regions of the mold; thirdly, the temperature control and demolding are independent of each other and have no linkage logic, and the demolding timing depends on manual experience setting and cannot be triggered according to the actual temperature state of the mold; fourthly, the demolding process is a single mechanical ejection, and the ejection force and ejection speed are fixed and cannot be adjusted according to the molding state; fifthly, there is a lack of multi-parameter sensing and closed-loop control of temperature, pressure, etc., and the mold state cannot be monitored in real time and the process actions cannot be dynamically adjusted.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent temperature-controlled injection mold and its automatic demolding system, comprising a moving mold, a stationary mold, two sets of temperature control modules, and two sets of pipeline input assembly boxes. The moving mold is slidably connected inside the stationary mold. The two sets of temperature control modules are installed on the moving mold and the stationary mold. Each temperature control module includes a main input circuit, multiple sets of regional heating pipelines, and multiple sets of cold water injection terminals corresponding to the regional heating pipelines. The main input circuit is used to input hot water. The multiple sets of regional heating pipelines introduce hot water from the main input circuit and heat the corresponding regions. The cold water injection terminals are located on the input side of each set of regional heating pipelines and are used to control the temperature of the region during the temperature control and cooling stages. The two sets of pipeline input assembly boxes are respectively installed outside the two sets of temperature control modules and are used to input hot and cold water.

[0006] Preferably, a shaping punch is installed in the moving mold, and a shaping die is installed in the stationary mold. The two sets of temperature control modules are used to heat the shaping punch and the shaping die, respectively. Pressure sensors and temperature sensors are installed in the shaping punch and the shaping die. A connecting column is fixedly connected to the side of the moving mold away from the shaping punch. The connecting column is used to fix the power component, so that the power component drives the moving mold to move. A sliding through hole is opened on the moving mold. A limit post is fixedly connected to one end of the stationary mold. The limit post is slidably connected in the sliding through hole. An injection port is opened in the stationary mold.

[0007] Preferably, the intelligent temperature-controlled injection mold includes a demolding assembly, which includes a power cylinder and an ejector pin. The power cylinder is installed on the back of the moving mold, and the ejector pin is slidably connected inside the shaping punch. The power cylinder is used to drive the ejector pin to eject the material out of the shaping punch.

[0008] Preferably, a moving mold temperature control mounting plate is installed inside the moving mold, a stationary mold temperature control mounting plate is installed inside the stationary mold, the shaping punch is mounted on the moving mold temperature control mounting plate, a mounting stud is fixedly connected to the back end of the shaping die, the mounting stud is mounted on the stationary mold temperature control mounting plate by a nut, two sets of temperature control modules are respectively set inside the moving mold temperature control mounting plate and the stationary mold temperature control mounting plate, and two sets of pipeline input assembly boxes are respectively installed on the outer ends of the moving mold temperature control mounting plate and the stationary mold temperature control mounting plate.

[0009] Preferably, the temperature control module further includes a return water output terminal, a hot water injection terminal, and an output branch pipe. The return water output terminal is provided in four sets. The hot water injection terminal is connected to the main input circuit and is used to input hot water into the main input circuit. The output branch pipe connects the main input circuit, the regional heating pipe, and the return water output terminal so that the hot water is injected into the regional heating pipe and then output from the return water output terminal. One end of the pipe input assembly box is fixedly connected to a cold water input pipe, and the other end of the pipe input assembly box is fixedly connected to a hot water input pipe. The cold water input pipe is connected to the cold water injection terminal, and the hot water input pipe is connected to the hot water injection terminal. The pipe input assembly box on the stationary mold is provided with an injection molding machine insertion slot for inserting the injection molding machine nozzle.

[0010] Preferably, the automatic demolding system includes a multi-zone temperature sensing module, a zone temperature control execution module, a timing control core module, a demolding drive execution module, and a signal interaction and safety interlock module. The multi-zone temperature sensing module, zone temperature control execution module, and demolding drive execution module are bidirectionally electrically connected to the timing control core module. The signal interaction and safety interlock module is connected to the signal links of each module. The multi-zone temperature sensing module is used to collect the temperature of each mold zone and the cavity pressure. The zone temperature control execution module is used to drive the switching of hot and cold water and the flow rate adjustment of the temperature control module. The demolding drive execution module is used to drive the demolding assembly to complete the ejection action. The timing control core module is used to coordinate the temperature control timing, cooling process, and demolding trigger timing. The safety interlock module is used to achieve abnormal blocking and linkage protection.

[0011] Preferably, the zoned temperature control execution module is adapted to the temperature control module, and is divided into independent temperature control zones according to the shaping punch and shaping die. Each zone corresponds to a set of regional heating pipes and cold water injection terminals. The multi-zone temperature sensing module includes multiple sets of temperature sensors and pressure sensors, which are respectively embedded in the cavity surface of the shaping punch, the cavity surface of the shaping die, near the gate, and pipe nodes. The output signal of each sensor is independently connected to the timing control core module to establish the correspondence between zoned temperature and pressure. The zoned temperature control execution module is used to heat the mold zones through the hot water injection terminal, the main input circuit, and the regional heating pipes during the preheating stage, maintain the zoned temperature during the injection and holding pressure stages, and independently control the on / off and flow rate of the cold water injection terminals in each zone according to the sensor feedback signals during the cooling stage.

[0012] Preferably, the demolding drive execution module includes a power cylinder, an ejector pin, a stroke sensor, and a resistance sensor; the power cylinder is fixedly installed on the back of the moving mold, and the ejector pin slides through the fixed punch and is connected to the output end of the power cylinder; the stroke sensor is used to detect the extension and reset positions of the ejector pin, and the resistance sensor is used to collect the ejection load; the demolding drive execution module is used to sequentially execute: a low-speed pre-ejection action, in which the power cylinder drives the ejector pin to extend slightly; a uniform-speed main ejection action, in which the power cylinder drives the ejector pin to complete the ejection; and a rapid reset action, in which the power cylinder drives the ejector pin to retract to the initial position.

[0013] Preferably, the timing control core module has a built-in temperature control-demolding linkage logic, and the execution steps are as follows:

[0014] S1. Timing Synchronization: Starting from the injection molding machine's mold closing signal, zone preheating is initiated, with real-time feedback from each temperature sensor. Once the overall temperature reaches the injection molding set value, the injection molding process is allowed to begin.

[0015] S2. Cooling linkage: After the pressure holding is completed, the timing control core module starts the gradient cooling of the cold water injection end in each zone according to the zone temperature signal, dynamically matching the cooling flow rate and time, and controlling the cooling rate of each zone to be consistent.

[0016] S3. Demolding trigger: When the feedback values ​​of all zone temperature sensors drop to the preset demolding temperature threshold and the cavity pressure is lower than the safety value, the timing control core module outputs the mold opening signal. After the mold is opened, the demolding drive execution module is immediately started to perform the three-stage ejection.

[0017] S4. Reset and Warm-up: After the ejector pin is reset, it automatically switches to the hot water injection end to warm the mold to the initial injection temperature and enter the next cycle.

[0018] The technical effects and advantages of this invention are as follows:

[0019] This intelligent temperature-controlled injection mold and its automatic demolding system employ two independent temperature control modules installed on the moving mold and the stationary mold respectively. Each temperature control module is equipped with multiple independent regional heating pipes and corresponding cold water injection ends, which can independently control the heating and cooling of the shaping punch, shaping die and different areas of the mold. It can set temperature parameters according to the molding characteristics of different areas, replacing the existing technology's full-area synchronous temperature control mode.

[0020] This intelligent temperature-controlled injection mold and its automatic demolding system have a zoned temperature control execution module that can independently control the on / off state and medium flow of the cold water injection end in each zone according to the real-time signal fed back by the multi-zone temperature sensing module. It can achieve gradient cooling of different zones according to preset process requirements and accurately adjust the cooling rate of each zone, replacing the existing technology's uniform cooling method across the entire area.

[0021] This intelligent temperature-controlled injection mold and its automatic demolding system establish a linkage logic between temperature control and demolding through a timing control core module. The actual temperature of the mold and the cavity pressure are used as demolding trigger conditions. When the temperature of all zones and the cavity pressure reach the preset threshold, the demolding program is automatically started, realizing automatic and precise control of the demolding timing, replacing the existing technology that relies on manually setting a fixed demolding time.

[0022] This intelligent temperature-controlled injection mold and its automatic demolding system divide the demolding process into three continuous stages: low-speed pre-ejection, uniform-speed main ejection, and rapid reset. It also collects the ejection position and ejection load signals in real time through stroke sensors and resistance sensors, and can dynamically adjust the execution process of the ejection action according to the molding state, replacing the existing mechanical ejection mode with a single speed and a single force.

[0023] This intelligent temperature-controlled injection mold and its automatic demolding system construct a closed-loop control system consisting of a multi-zone temperature sensing module, a zoned temperature control execution module, a demolding drive execution module, and a timing control core module. It collects mold status parameters in real time through temperature and pressure sensors, and realizes bidirectional signal interaction between the modules. It can dynamically adjust the temperature control and demolding actions according to the real-time status, forming a complete closed-loop control system. Attached Figure Description

[0024] 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.

[0025] Figure 1 This is a schematic diagram of the overall front structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall side structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the overall exploded structure of the present invention;

[0028] Figure 4 This is a schematic diagram showing the detailed structure of the shaping punch of the present invention;

[0029] Figure 5 This is a schematic diagram showing the detailed structure of the static mold of the present invention;

[0030] Figure 6 This is a schematic diagram of the temperature control module framework of the present invention;

[0031] Figure 7This is an independent flowchart of the temperature control module of the present invention;

[0032] Figure 8 This is an independent flowchart of the demolding module of the present invention;

[0033] Figure 9 This is a diagram showing the signal flow between modules in this invention.

[0034] In the diagram: 1. Moving mold; 11. Moving mold temperature control mounting plate; 12. Connecting pillar; 13. Sliding through hole; 2. Stationary mold; 21. Limiting pillar; 22. Stationary mold temperature control mounting plate; 23. Injection port; 3. Shaping punch; 4. Shaping die; 41. Mounting stud; 5. Demolding assembly; 51. Power cylinder; 52. Ejector pillar; 6. Temperature control module; 61. Return water output end; 62. Cold water injection end; 63. Hot water injection end; 64. Main input circuit; 65. Zone heating pipeline; 66. Output branch pipeline; 7. Pipeline input assembly box; 71. Injection molding machine connector slot; 72. Cold water input pipe; 73. Hot water input pipe. Detailed Implementation

[0035] 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 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.

[0036] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0037] This invention discloses an intelligent temperature-controlled injection mold and its automatic demolding system, according to the appendix. Figures 1 to 3 As shown, the system includes a moving mold 1, a stationary mold 2, two sets of temperature control modules 6, and two sets of pipe input assembly boxes 7. The moving mold 1 is slidably connected inside the stationary mold 2. The two sets of temperature control modules 6 are installed on the moving mold 1 and the stationary mold 2. The temperature control module 6 includes a main input circuit 64, multiple sets of regional heating pipes 65, and multiple sets of cold water injection terminals 62 corresponding to the regional heating pipes 65. The main input circuit 64 is used to input hot water. The multiple sets of regional heating pipes 65 introduce hot water from the main input circuit 64 and heat the area. The cold water injection terminals 62 are opened on the input side of each set of regional heating pipes 65 and are used to control the temperature of the area during the temperature control and cooling stages. The two sets of pipe input assembly boxes 7 are respectively installed on the outside of the two sets of temperature control modules 6 and are used to input hot and cold water.

[0038] According to the appendix Figures 1 to 5As shown, further, a shaping punch 3 is installed in the moving mold 1, and a shaping die 4 is installed in the stationary mold 2. Two sets of temperature control modules 6 are used to heat the shaping punch 3 and the shaping die 4, respectively. Pressure sensors and temperature sensors are installed in the shaping punch 3 and the shaping die 4. A connecting column 12 is fixedly connected to the side of the moving mold 1 away from the shaping punch 3. The connecting column 12 is used to fix the power component, so that the power component drives the moving mold 1 to move. A sliding through hole 13 is opened on the moving mold 1. A limit post 21 is fixedly connected to one end of the stationary mold 2. The limit post 21 is slidably connected in the sliding through hole 13. An injection port 23 is opened in the stationary mold 2.

[0039] According to the appendix Figures 1 to 4 As shown, the intelligent temperature-controlled injection mold further includes a demolding component 5, which includes a power cylinder 51 and an ejector pin 52. The power cylinder 51 is installed on the back of the moving mold 1, and the ejector pin 52 is slidably connected in the shaping punch 3. The power cylinder 51 is used to drive the ejector pin 52 to eject the material out of the shaping punch 3.

[0040] According to the appendix Figures 1 to 4 As shown, specifically disclosed, a moving mold temperature control mounting plate 11 is installed inside the moving mold 1, a stationary mold temperature control mounting plate 22 is installed inside the stationary mold 2, a shaping punch 3 is installed on the moving mold temperature control mounting plate 11, a mounting stud 41 is fixedly connected to the back end of the shaping die 4, and the mounting stud 41 is installed on the stationary mold temperature control mounting plate 22 by means of a nut, two sets of temperature control modules 6 are respectively set inside the moving mold temperature control mounting plate 11 and the stationary mold temperature control mounting plate 22, and two sets of pipeline input assembly boxes 7 are respectively installed on the outer ends of the moving mold temperature control mounting plate 11 and the stationary mold temperature control mounting plate 22.

[0041] According to the appendix Figures 1 to 6 As shown, the temperature control module 6 further includes a return water output terminal 61, a hot water injection terminal 63, and an output branch pipe 66. The return water output terminal 61 is provided with four sets. The hot water injection terminal 63 is connected to the main input circuit 64 and is used to input hot water into the main input circuit 64. The output branch pipe 66 connects the main input circuit 64, the regional heating pipe 65, and the return water output terminal 61 so that the hot water is injected into the regional heating pipe 65 and then output from the return water output terminal 61. One end of the pipe input assembly box 7 is fixedly connected to a cold water input pipe 72, and the other end of the pipe input assembly box 7 is fixedly connected to a hot water input pipe 73. The cold water input pipe 72 is connected to the cold water injection terminal 62, and the hot water input pipe 73 is connected to the hot water injection terminal 63. The pipe input assembly box 7 on the stationary mold 2 is provided with an injection molding machine insertion slot 71, which is used to insert the injection molding machine nozzle.

[0042] In this embodiment, the system integrates two sets of temperature control modules 6 with the moving mold temperature control mounting plate 11 and the stationary mold temperature control mounting plate 22 respectively. The main input circuit 64 adopts a ring-shaped main pipe structure, and multiple sets of regional heating pipes 65 are radially led out from the main input circuit 64. Each set of regional heating pipes 65 corresponds to an independent temperature control zone. The cold water injection end 62 is directly connected to the inlet end of each set of regional heating pipes 65. The instantaneous switching of cold and hot water media is realized through the solenoid valve without shutting down the hot water circuit. The pipe input assembly box 7 integrates independent cold water distributors and hot water distributors. The cold water input pipe 72 and the hot water input pipe 73 are respectively connected to the corresponding distributors to realize independent adjustment of the medium flow rate in multiple zones.

[0043] According to the appendix Figures 7 to 9 As shown, it is particularly important to emphasize that the automatic demolding system includes a multi-zone temperature sensing module, a zone temperature control execution module, a timing control core module, a demolding drive execution module, and a signal interaction and safety interlock module. The multi-zone temperature sensing module, zone temperature control execution module, and demolding drive execution module are all bidirectionally electrically connected to the timing control core module. The signal interaction and safety interlock module is connected to the signal links of each module. The multi-zone temperature sensing module is used to collect the temperature of each mold zone and the cavity pressure. The zone temperature control execution module is used to drive the switching of hot and cold water and the flow rate adjustment of the temperature control module 6. The demolding drive execution module is used to drive the demolding component 5 to complete the ejection action. The timing control core module is used to coordinate the temperature control timing, cooling process, and demolding trigger timing. The safety interlock module is used to achieve abnormal interruption and linkage protection. The temperature control module 6 is adapted to the temperature control module 6. It is divided into independent temperature control zones according to the forming punch 3 and the forming die 4. Each zone corresponds to a set of zone heating pipes 65 and cold water injection end 62. The multi-zone temperature sensing module includes multiple sets of temperature sensors and pressure sensors, which are respectively embedded in the cavity surface of the forming punch 3, the cavity surface of the forming die 4, near the gate, and pipe nodes. The output signal of each sensor is independently connected to the timing control core module to establish the correspondence between zone temperature and pressure. The temperature control module is used to heat the mold zones through the hot water injection end 63, the main input circuit 64, and the zone heating pipes 65 during the preheating stage. It maintains the zone temperature during the injection and holding pressure stages. During the cooling stage, it independently controls the on / off and flow rate of the cold water injection end 62 of each zone according to the sensor feedback signal.

[0044] In this embodiment, the multi-zone temperature sensing module includes temperature sensors and pressure sensors. The temperature sensors are embedded at the corners and center of the forming punch 3 and the forming die 4, as well as at the gate and runner ends. The pressure sensors are installed diagonally in the cavity. The timing control core module uses a PLC controller with built-in PID temperature control algorithm and demolding timing control algorithm. All sensor signals are connected to the PLC's analog input module through shielded cables, and control commands are sent to each actuator through the digital output module. In addition, the zone temperature control execution module includes electromagnetic reversing valves and flow regulating valves. Each set of electromagnetic reversing valves corresponds to a zone heating pipe 65 and a cold water injection end 62, and each set of flow regulating valves corresponds to a return water output end 61. During the temperature control stage, the timing control core module adjusts the opening of the corresponding flow regulating valve in real time according to the feedback signals of the temperature sensors in each zone, controlling the continuous change of the medium flow rate to achieve precise temperature control of each zone.

[0045] According to the appendix Figures 7 to 9 As shown, it is particularly important to emphasize that the demolding drive execution module includes a power cylinder 51, an ejector pin 52, a stroke sensor, and a resistance sensor. The power cylinder 51 is fixedly installed on the back of the moving mold 1, and the ejector pin 52 slides through the fixed punch 3 and is connected to the output end of the power cylinder 51. The stroke sensor is used to detect the extension and reset positions of the ejector pin 52, and the resistance sensor is used to collect the ejection load. The demolding drive execution module is used to sequentially execute: a low-speed pre-ejection action, in which the power cylinder 51 drives the ejector pin 52 to extend slightly; a uniform-speed main ejection action, in which the power cylinder 51 drives the ejector pin 52 to complete the ejection; and a rapid reset action, in which the power cylinder 51 drives the ejector pin 52 to retract to the initial position. The timing control core module has built-in temperature control-demolding linkage logic, and the execution steps are as follows:

[0046] S1. Timing Synchronization: Starting from the injection molding machine's mold closing signal, zone preheating is initiated, with real-time feedback from each temperature sensor. Once the overall temperature reaches the injection molding set value, the injection molding process is allowed to begin.

[0047] S2. Cooling linkage: After the pressure holding is completed, the timing control core module starts the 62 gradient cooling at the cold water injection end of each zone according to the zone temperature signal, dynamically matching the cooling flow rate and time to control the cooling rate of each zone to be consistent.

[0048] S3. Demolding trigger: When the feedback values ​​of all zone temperature sensors drop to the preset demolding temperature threshold and the cavity pressure is lower than the safety value, the timing control core module outputs the mold opening signal. After the mold is opened, the demolding drive execution module is immediately started to perform the three-stage ejection.

[0049] S4 Reset and Warm-up: After the ejector pin 52 resets, it automatically switches to the hot water injection end 63 to warm the mold back to the initial injection temperature and enter the next cycle.

[0050] In this embodiment, the demolding drive execution module includes a servo power cylinder 51 and an ejector pin 52. The ejector pin 52 is rectangularly distributed at the corners of the shaping punch 3. The stroke sensor is a magnetostrictive displacement sensor, installed inside the cylinder body of the power cylinder 51, and the resistance sensor is a strain gauge force sensor, installed between the output end of the power cylinder 51 and the ejector pin 52. During demolding, the timing control core module adjusts the output pressure and movement speed of the power cylinder 51 in real time according to the feedback signals from the stroke sensor and the resistance sensor. Temperature control is linked with demolding. The logic is implemented through the PLC's internal timer and comparator. When the measured values ​​of all zone temperature sensors are within ±1℃ of the preset demolding temperature threshold, and the measured values ​​of all pressure sensors are lower than the preset safety pressure value, the PLC's output contact closes and sends a mold opening signal to the injection molding machine. After the mold is fully opened, the injection molding machine sends a feedback signal to the PLC, and the PLC immediately outputs a demolding control signal to start the power cylinder 51 to perform a three-stage ejection action. After ejection is completed, the PLC automatically switches the temperature control module 6 to the heating mode and starts the mold warming program.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent temperature-controlled injection mold, characterized in that, include: Moving mold (1); The stationary mold (2) is slidably connected to the moving mold (1) inside the stationary mold (2); Two sets of temperature control modules (6) are installed on the moving mold (1) and the stationary mold (2). The temperature control module (6) includes a main input circuit (64), multiple sets of regional heating pipes (65) and multiple sets of cold water injection terminals (62) corresponding to the regional heating pipes (65). The main input circuit (64) is used to input hot water. The multiple sets of regional heating pipes (65) introduce hot water from the main input circuit (64) and heat the area. The cold water injection terminal (62) is opened on the input side of each set of regional heating pipes (65) and is used to control the temperature of the area during the temperature control and cooling stages. Two sets of pipe input assembly boxes (7) are installed on the outside of two sets of temperature control modules (6) respectively, for inputting hot and cold water.

2. The intelligent temperature-controlled injection mold according to claim 1, characterized in that, The moving mold (1) is equipped with a shaping punch (3), and the stationary mold (2) is equipped with a shaping die (4). The two sets of temperature control modules (6) are used to heat the shaping punch (3) and the shaping die (4) respectively. The shaping punch (3) and the shaping die (4) are equipped with pressure sensors and temperature sensors. A connecting column (12) is fixedly connected to the side of the moving mold (1) away from the shaping punch (3). The connecting column (12) is used to fix the power component so that the power component drives the moving mold (1) to move. A sliding through hole (13) is opened on the moving mold (1). A limit post (21) is fixedly connected to one end of the stationary mold (2). The limit post (21) is slidably connected in the sliding through hole (13). An injection port (23) is opened in the stationary mold (2).

3. The intelligent temperature-controlled injection mold according to claim 2, characterized in that, The intelligent temperature-controlled injection mold includes a demolding component (5), which includes a power cylinder (51) and an ejector pin (52). The power cylinder (51) is installed on the back of the moving mold (1), and the ejector pin (52) is slidably connected in the shaping punch (3). The power cylinder (51) is used to drive the ejector pin (52) to eject the material out of the shaping punch (3).

4. The intelligent temperature-controlled injection mold according to claim 3, characterized in that, The moving mold (1) is equipped with a moving mold temperature control mounting plate (11), the stationary mold (2) is equipped with a stationary mold temperature control mounting plate (22), the shaping punch (3) is mounted on the moving mold temperature control mounting plate (11), the back end of the shaping die (4) is fixedly connected with a mounting stud (41), the mounting stud (41) is mounted on the stationary mold temperature control mounting plate (22) by a nut, the two sets of temperature control modules (6) are respectively set in the moving mold temperature control mounting plate (11) and the stationary mold temperature control mounting plate (22), and the two sets of pipeline input assembly boxes (7) are respectively installed on the outer ends of the moving mold temperature control mounting plate (11) and the stationary mold temperature control mounting plate (22).

5. The intelligent temperature-controlled injection mold according to claim 1, characterized in that, The temperature control module (6) also includes a return water output terminal (61), a hot water injection terminal (63), and an output branch pipe (66). The return water output terminal (61) is provided with four sets. The hot water injection terminal (63) is connected to the main input circuit (64) and is used to input hot water into the main input circuit (64). The output branch pipe (66) connects the main input circuit (64), the regional heating pipe (65), and the return water output terminal (61) so that the hot water is injected into the regional heating pipe (65) and then output from the return water output terminal (61).

6. The intelligent temperature-controlled injection mold according to claim 5, characterized in that, One end of the pipeline input assembly box (7) is fixedly connected to a cold water input pipe (72), and the other end of the pipeline input assembly box (7) is fixedly connected to a hot water input pipe (73). The cold water input pipe (72) is connected to the cold water injection end (62), and the hot water input pipe (73) is connected to the hot water injection end (63). The pipeline input assembly box (7) on the stationary mold (2) is provided with an injection molding machine insertion slot (71), which is used to insert the injection molding machine nozzle.

7. An automatic demolding system for controlling the intelligent temperature-controlled injection mold according to any one of claims 1-6, characterized in that, It includes a multi-zone temperature sensing module, a zone temperature control execution module, a timing control core module, a demolding drive execution module, and a signal interaction and safety interlock module; the multi-zone temperature sensing module, the zone temperature control execution module, and the demolding drive execution module are bidirectionally electrically connected to the timing control core module, and the signal interaction and safety interlock module is connected to the signal link of each module; the multi-zone temperature sensing module is used to collect the temperature of the mold zone and the cavity pressure; the zone temperature control execution module is used to drive the hot and cold water switching and flow regulation of the temperature control module (6); the demolding drive execution module is used to drive the demolding component (5) to complete the ejection action; the timing control core module is used to coordinate the temperature control timing, cooling process and demolding trigger timing; and the safety interlock module is used to realize abnormal blocking and linkage protection.

8. The automatic demolding system according to claim 7, characterized in that, The partition temperature control execution module is adapted to the temperature control module (6) and is divided into independent temperature control zones according to the shaping punch (3) and shaping die (4). Each zone corresponds to a set of regional heating pipes (65) and cold water injection end (62). The multi-zone temperature sensing module includes multiple sets of temperature sensors and pressure sensors, which are respectively embedded in the cavity surface of the shaping punch (3), the cavity surface of the shaping die (4), near the gate and pipe nodes. The output signal of each sensor is independently connected to the timing control core module to establish the correspondence between partition temperature and pressure. The partition temperature control execution module is used to heat the mold in the preheating stage through the hot water injection end (63), the main input circuit (64) and the regional heating pipes (65), maintain the partition temperature in the injection and holding stages, and independently control the on / off and flow rate of the cold water injection end (62) of each zone according to the sensor feedback signal in the cooling stage.

9. The automatic demolding system according to claim 8, characterized in that, The demolding drive execution module includes a power cylinder (51), an ejector pin (52), a stroke sensor, and a resistance sensor. The power cylinder (51) is fixedly installed on the back of the moving mold (1), and the ejector pin (52) slides through the shaping punch (3) and is connected to the output end of the power cylinder (51). The stroke sensor is used to detect the extension and reset positions of the ejector pin (52), and the resistance sensor is used to collect the ejection load. The demolding drive execution module is used to perform the following actions in sequence: low-speed pre-ejection action, in which the power cylinder (51) drives the ejector pin (52) to extend slightly; uniform-speed main ejection action, in which the power cylinder (51) drives the ejector pin (52) to complete the ejection; and rapid reset action, in which the power cylinder (51) drives the ejector pin (52) to retract to the initial position.

10. The automatic demolding system according to claim 9, characterized in that, The timing control core module has built-in temperature control-demolding linkage logic, and the execution steps are as follows: S1. Timing Synchronization: Starting from the injection molding machine's mold closing signal, zone preheating is initiated, with real-time feedback from each temperature sensor. Once the overall temperature reaches the injection molding set value, the injection molding process is allowed to begin. S2. Cooling linkage: After the pressure holding is completed, the timing control core module opens the cold water injection end (62) gradient cooling in each zone according to the zone temperature signal, dynamically matching the cooling flow rate and time, and controlling the temperature drop rate of each zone to be consistent. S3. Demolding trigger: When the feedback values ​​of all zone temperature sensors drop to the preset demolding temperature threshold and the cavity pressure is lower than the safety value, the timing control core module outputs the mold opening signal. After the mold is opened, the demolding drive execution module is immediately started to perform the three-stage ejection. S4 Reset and Warm-up: After the top column (52) is reset, it automatically switches to the hot water injection end (63) to warm the mold back to the initial injection temperature and enter the next cycle.

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