An energy-saving system for industrial injection molding machines

Abstract

The utility model belongs to the technical field of industrial injection molding machines, and discloses an energy-saving system for industrial injection molding machines, including an industrial injection molding machine body, an energy recovery device, and an energy-saving control device, wherein the energy recovery device and the energy-saving control device are both arranged on the industrial injection molding machine body, the energy-saving control device is electrically connected to the industrial injection molding machine body and the energy recovery device, respectively, and the energy-saving control device is connected to an external monitoring center by communication. The utility model solves the problems of high energy consumption, low efficiency, high production cost, and high environmental burden in the prior art.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial injection molding machines, and in particular relates to an energy-saving system for industrial injection molding machines. Background Art

[0002] Industrial injection molding machine is an important plastic processing equipment, which manufactures various plastic products by compressing and injecting plastic melt. This machine plays a vital role in the plastic industry because it can achieve efficient, batch and uniform plastic production.

[0003] With the rapid development of the plastics industry, industrial injection molding machines are increasingly used in the production of plastic products. However, traditional industrial injection molding machines have problems such as high energy consumption and low efficiency in the production process, which leads to increased production costs and a greater burden on the environment. Therefore, it is of great significance to study an energy-saving system that can improve the energy utilization efficiency of industrial injection molding machines and reduce energy consumption. Utility Model Content

[0004] In order to solve the problems of high energy consumption, low efficiency, heavy production cost and environmental burden in the prior art, an energy-saving system for industrial injection molding machines is proposed.

[0005] The technical solution adopted by the utility model is:

[0006] An industrial injection molding machine energy-saving system comprises an industrial injection molding machine body, an energy recovery device and an energy-saving control device. The energy recovery device and the energy-saving control device are both arranged on the industrial injection molding machine body. The energy-saving control device is electrically connected to the industrial injection molding machine body and the energy recovery device respectively, and the energy-saving control device is communicatively connected to an external monitoring center.

[0007] Furthermore, the industrial injection molding machine body includes an industrial injection molding machine shell, an injection mechanism, a mold mechanism, a molding cavity and an industrial computer. The injection mechanism, the mold mechanism, the molding cavity and the industrial computer are all arranged inside the industrial injection molding machine shell, the output end of the injection mechanism and the input end of the mold mechanism are arranged inside the molding cavity, and the control end of the injection mechanism and the control end of the mold mechanism are electrically connected to the industrial computer, the input end of the industrial computer is electrically connected to the output end of the energy-saving control device, and an energy recovery device is arranged outside the molding cavity.

[0008] Further, the energy recovery device is arranged on the back of the industrial injection molding machine body, and the energy recovery device comprises an energy recovery device housing, a cold water tank, an energy recovery curved pipe and a hot water tank;

[0009] A cold water tank is provided at the top of the inner part of the shell of the energy recovery device, and a hot water tank is provided at the bottom of the inner part of the shell of the energy recovery device, a heat insulation board is provided at the contact part between the cold water tank and the hot water tank, and a cold water tank is provided inside the cold water tank, and a hot water tank is provided inside the hot water tank, a first input pipe is provided at the input end of the cold water tank, and the output end of the cold water tank is fixedly connected to the input end of the energy recovery curved pipe through the first output pipe, the input end of the first input pipe is fixedly connected to the external municipal pipe network, and the first input pipe is provided with a first solenoid valve, and the first output pipe is provided with a first water pump;

[0010] The energy recovery curved pipe is arranged around the outside of the shaping cavity, and the output end of the energy recovery curved pipe is fixedly connected to the input end of the hot water tank through the second input pipe, the second input pipe is provided with a second solenoid valve, the output end of the hot water tank is provided with a second output pipe, the output end of the second output pipe is fixedly connected to the external municipal pipe network, and the second output pipe is provided with a second water pump;

[0011] The control end of the first solenoid valve, the control end of the second solenoid valve, the control end of the first water pump and the control end of the second water pump are all electrically connected to the output end of the energy-saving control device.

[0012] Furthermore, the energy-saving control device includes an energy-saving control device housing, an energy-saving control circuit board, a human-computer interaction unit and a data acquisition unit. The energy-saving control circuit board is arranged inside the energy-saving control device housing, and the output end of the energy-saving control circuit board is electrically connected to the input end of the industrial computer of the industrial injection molding machine body, the control end of the first solenoid valve of the energy recovery device, the control end of the second solenoid valve and the control end of the first water pump and the input end of the human-computer interaction unit respectively;

[0013] The input end of the energy-saving control circuit board is electrically connected to the output end of the data acquisition unit, the power supply end of the energy-saving control circuit board is electrically connected to the mains power line, the communication end of the energy-saving control circuit board is communicatively connected to the external monitoring center, and the switch end of the energy-saving control circuit board is electrically connected to the power supply line of the industrial injection molding machine body;

[0014] The human-machine interaction unit is arranged outside the housing of the energy-saving control device, the data acquisition unit is arranged on the industrial injection molding machine body, and the input end of the data acquisition unit is electrically connected to the power supply circuit of the industrial injection molding machine body.

[0015] Further, the energy-saving control circuit board includes a main control unit, a wireless communication unit, a power supply unit and a power supply control unit, the input end of the main control unit is electrically connected to the output end of the data acquisition unit, the power supply end of the main control unit is electrically connected to the output end of the power supply unit, and the output end of the main control unit is electrically connected to the input end of the industrial computer of the industrial injection molding machine body, the control end of the first solenoid valve of the energy recovery device, the control end of the second solenoid valve, the control end of the first water pump, the input end of the human-computer interaction unit, the input end of the wireless communication unit and the control end of the power supply control unit;

[0016] The output end of the wireless communication unit is connected to the external monitoring center for communication, the switch end of the power supply control unit is electrically connected to the power supply line of the industrial injection molding machine body, and the input end of the power supply unit is electrically connected to the mains power line.

[0017] Furthermore, the main control unit includes a main control chip circuit, a reset circuit and a crystal oscillator circuit. The input end of the main control chip circuit is electrically connected to the output end of the data acquisition unit, the output end of the reset circuit and the output end of the crystal oscillator circuit, respectively. The power supply end of the main control chip circuit is electrically connected to the output end of the power supply unit, and the output end of the main control chip circuit is electrically connected to the input end of the industrial computer of the industrial injection molding machine body, the control end of the first solenoid valve of the energy recovery device, the control end of the second solenoid valve, the control end of the first water pump, the input end of the human-computer interaction unit, the input end of the wireless communication unit and the control end of the power supply control unit.

[0018] Furthermore, the wireless communication unit includes a wireless communication circuit, an input end of the wireless communication circuit is electrically connected to an output end of the main control unit, a power supply end of the wireless communication circuit is electrically connected to an output end of the power supply unit, and an output end of the wireless communication circuit is communicatively connected to an external control center.

[0019] Further, the power supply unit includes a rectifier circuit and a voltage stabilizing circuit, the input end of the rectifier circuit is electrically connected to the mains power line, and the output end of the rectifier circuit is electrically connected to the input end of the voltage stabilizing circuit;

[0020] The output end of the voltage stabilizing circuit is electrically connected to the power supply end of the main control unit and the power supply end of the wireless communication unit respectively.

[0021] Further, the power supply control unit includes a solid-state relay drive circuit and a solid-state relay, the input end of the solid-state relay drive circuit is electrically connected to the output end of the main control unit, and the output end of the solid-state relay drive circuit is electrically connected to the control end of the solid-state relay;

[0022] And the switch end of the solid-state relay is connected in series to the power supply circuit of the industrial injection molding machine body.

[0023] Furthermore, the human-computer interaction unit includes a display screen circuit, a key circuit and an audio-visual reminder circuit, and the input end of the display screen circuit, the input end of the key circuit and the input end of the audio-visual reminder circuit are all electrically connected to the output end of the main control unit;

[0024] The data acquisition unit includes an A / D converter, a current transformer, a voltage transformer, a first temperature and humidity sensor, and a second temperature and humidity sensor. The current transformer is connected in series to the power supply line of the industrial injection molding machine body, and the signal end of the current transformer is electrically connected to the first input end of the A / D converter. The voltage transformer is connected in parallel to the power supply line of the industrial injection molding machine body, and the signal end of the voltage transformer is electrically connected to the second input end of the A / D converter.

[0025] The first temperature and humidity sensor is arranged inside the molding cavity of the industrial injection molding machine body, and the signal end of the first temperature and humidity sensor is electrically connected to the third input end of the A / D converter. The second temperature and humidity sensor is arranged inside the hot water tank of the energy recovery device, and the signal end of the second temperature and humidity sensor is electrically connected to the fourth input end of the A / D converter. The output end of the A / D converter is electrically connected to the input end of the main control unit.

[0026] The beneficial effects of the utility model are:

[0027] The energy-saving system for an industrial injection molding machine provided by the utility model realizes remote control of an industrial injection molding machine body by remote data transmission between a monitoring center and an energy-saving control device, thereby improving functionality and practicability, avoiding waste of resources caused by the industrial injection molding machine body being in a standby state for a long time, and improving the service life of the industrial injection molding machine body; the energy-saving control device accurately controls the industrial injection molding machine body to achieve the purpose of energy saving and consumption reduction; the energy recovery device recovers waste heat in the injection molding process of the industrial injection molding machine body, thereby improving energy utilization efficiency, reducing energy consumption, reducing production costs, reducing waste heat emissions, and reducing environmental burdens.

[0028] Other beneficial effects of the present invention will be further described in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front structural schematic diagram of the energy-saving system of the industrial injection molding machine in the utility model.

[0030] Figure 2 It is a side structural schematic diagram of the energy-saving system of the industrial injection molding machine in the utility model.

[0031] Figure 3 It is a circuit block diagram of the energy-saving system of the industrial injection molding machine in the utility model.

[0032] Figure 4 It is a circuit principle diagram of the main control unit in the utility model.

[0033] Figure 5 It is a circuit principle diagram of the wireless communication circuit in the utility model.

[0034] Figure 6 It is a circuit principle diagram of the rectifier circuit in the utility model.

[0035] Figure 7 It is a circuit principle diagram of the voltage stabilizing circuit in the utility model.

[0036] In the figure, 1. Industrial injection molding machine body; 11. Industrial injection molding machine housing; 12. Injection mechanism; 13. Mold mechanism; 14. Molding cavity; 15. Industrial computer; 2. Energy recovery device; 21. Energy recovery device housing; 22. Cold water tank; 23. Energy recovery curved pipe; 24. Hot water tank; 3. Energy-saving control device; 31. Energy-saving control device housing; 32. Energy-saving control circuit board; 33. Human-computer interaction unit; 34. Data acquisition unit. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] Example:

[0039] like Figure 1 and Figure 2 As shown together, the present embodiment provides an energy-saving system for an industrial injection molding machine, including an industrial injection molding machine body 1, an energy recovery device 2 and an energy-saving control device 3. The energy recovery device 2 and the energy-saving control device 3 are both arranged on the industrial injection molding machine body 1, the energy-saving control device 3 is electrically connected to the industrial injection molding machine body 1 and the energy recovery device 2, respectively, and the energy-saving control device 3 is communicatively connected to an external monitoring center.

[0040] The energy-saving control device 3 is used to receive the working instructions of the industrial injection molding machine body 1 sent by the monitoring center, control the power supply of the industrial injection molding machine body 1, and then control the opening or closing of the industrial injection molding machine body 1, thereby realizing the remote control of the industrial injection molding machine body 1, avoiding the waste of resources caused by the industrial injection molding machine body 1 being in a standby state for a long time, and improving the service life of the industrial injection molding machine body 1; and, the energy-saving control device 3 monitors the energy consumption, temperature, pressure and other parameters in the injection molding process in real time, and the energy-saving control device 3 accurately controls the industrial injection molding machine body 1, adjusts the injection speed, pressure and other parameters, so as to achieve the purpose of energy saving and consumption reduction; then, the energy-saving control device 3 is also used to control the energy recovery device 2 to recover the waste heat in the injection molding process of the industrial injection molding machine body 1 according to the actual operation of the industrial injection molding machine body 1, thereby improving energy utilization efficiency, reducing energy consumption, reducing production costs, reducing waste heat emissions, and reducing environmental burden.

[0041] Preferably, the industrial injection molding machine body 1 includes an industrial injection molding machine housing 11, an injection mechanism 12, a mold mechanism 13, a molding cavity 14 and an industrial computer 15. The injection mechanism 12, the mold mechanism 13, the molding cavity 14 and the industrial computer 15 are all arranged inside the industrial injection molding machine housing 11. The output end of the injection mechanism 12 and the input end of the mold mechanism 13 are arranged inside the molding cavity 14, and the control end of the injection mechanism 12 and the control end of the mold mechanism 13 are both electrically connected to the industrial computer 15. The input end of the industrial computer 15 is electrically connected to the output end of the energy-saving control device 3, and an energy recovery device 2 is arranged outside the molding cavity 14.

[0042] The injection mechanism 12 is used to inject the plastic melt into the mold mechanism 13, and the mold mechanism 13 is used to mold plastic products. The injection mechanism 12 cooperates with the mold mechanism 13 to complete the injection molding task of the industrial injection molding machine body 1. The molding cavity 14 provides a relatively closed environment for the injection molding task to improve the effect and accuracy of the injection molding task. The industrial computer 15 is used to control the normal operation of other modules, collect parameters such as energy consumption, temperature, and pressure during the injection molding process, and adjust parameters such as injection speed and pressure.

[0043] Preferably, the energy recovery device 2 is arranged on the back of the industrial injection molding machine body 1, and the energy recovery device 2 includes an energy recovery device housing 21, a cold water tank 22, an energy recovery curved pipe 23 and a hot water tank 24;

[0044] A cold water tank is provided at the top of the inner part of the energy recovery device housing 21, and a hot water tank is provided at the bottom of the inner part of the energy recovery device housing 21, a heat insulation board is provided at the contact part between the cold water tank and the hot water tank, and a cold water tank 22 is provided inside the cold water tank, and a hot water tank 24 is provided inside the hot water tank, a first input pipe is provided at the input end of the cold water tank 22, and an output end of the cold water tank 22 is fixedly connected to the input end of the energy recovery curved pipe 23 through a first output pipe, the input end of the first input pipe is fixedly connected to an external municipal pipe network, the first input pipe is provided with a first solenoid valve of a specific model FDF-32M, and the first output pipe is provided with a first water pump of a specific model AT-1020;

[0045] The energy recovery curved pipe 23 is arranged around the outside of the shaping cavity 14, and the output end of the energy recovery curved pipe 23 is fixedly connected to the input end of the hot water tank 24 through the second input pipe, the second input pipe is provided with a second solenoid valve of a specific model FDF-32M, the output end of the hot water tank 24 is provided with a second output pipe, the output end of the second output pipe is fixedly connected to the external municipal pipe network, and the second output pipe is provided with a second water pump of a specific model AT-1020;

[0046] The control end of the first solenoid valve, the control end of the second solenoid valve, the control end of the first water pump and the control end of the second water pump are all electrically connected to the output end of the energy-saving control device 3 .

[0047] The first solenoid valve is opened, and cold water from the municipal pipeline is injected into the cold water tank 22. The first water pump is started to draw cold water into the energy recovery curved pipe 23. The cold water in the energy recovery curved pipe 23 flows through the molding cavity 14, bringing the heat of the plastic melt during injection molding in the molding cavity 14, thereby reducing the time required for the plastic melt to condense and fix in the mold. At the same time, waste heat is used to heat the cold water to obtain hot water. The second solenoid valve is opened, and hot water is injected into the hot water tank 24. The second water pump is started to draw hot water into the municipal pipeline, thereby realizing hot water utilization and improving energy utilization.

[0048] Preferably, the energy-saving control device 3 includes an energy-saving control device housing 31, an energy-saving control circuit board 32, a human-computer interaction unit 33 and a data acquisition unit 34. The energy-saving control circuit board 32 is arranged inside the energy-saving control device housing 31, and the output end of the energy-saving control circuit board 32 is electrically connected to the input end of the industrial computer 15 of the industrial injection molding machine body 1, the control end of the first solenoid valve of the energy recovery device 2, the control end of the second solenoid valve and the control end of the first water pump and the input end of the human-computer interaction unit 33;

[0049] The input end of the energy-saving control circuit board 32 is electrically connected to the output end of the data acquisition unit 34, the power supply end of the energy-saving control circuit board 32 is electrically connected to the mains power line, the communication end of the energy-saving control circuit board 32 is communicatively connected to the external monitoring center, and the switch end of the energy-saving control circuit board 32 is electrically connected to the power supply line of the industrial injection molding machine body 1;

[0050] The human-machine interaction unit 33 is arranged outside the energy-saving control device housing 31 , the data acquisition unit 34 is arranged on the industrial injection molding machine body 1 , and the input end of the data acquisition unit 34 is electrically connected to the power supply circuit of the industrial injection molding machine body 1 .

[0051] The energy-saving control circuit board 32 controls the normal operation of other units, and realizes the reception and analysis of work instructions and the processing of the actual operation data of the industrial injection molding machine body 1 collected by the data acquisition unit 34, and controls the opening and closing of the switch end according to the actual control instruction to realize the conduction and shutdown of the power supply line of the industrial injection molding machine body 1. The human-computer interaction unit 33 realizes human-computer interaction work such as data and instruction display.

[0052] As a preference, Figure 3 As shown, the energy-saving control circuit board 32 includes a main control unit, a wireless communication unit, a power supply unit and a power supply control unit. The input end of the main control unit is electrically connected to the output end of the data acquisition unit 34, the power supply end of the main control unit is electrically connected to the output end of the power supply unit, and the output end of the main control unit is electrically connected to the input end of the industrial computer 15 of the industrial injection molding machine body 1, the control end of the first solenoid valve of the energy recovery device 2, the control end of the second solenoid valve, the control end of the first water pump, the input end of the human-computer interaction unit 33, the input end of the wireless communication unit and the control end of the power supply control unit;

[0053] The output end of the wireless communication unit is connected to the external monitoring center for communication, the switch end of the power supply control unit is electrically connected to the power supply line of the industrial injection molding machine body 1, and the input end of the power supply unit is electrically connected to the mains power line.

[0054] The main control unit controls the normal operation of other units and is used to receive work instructions sent by the monitoring center. According to the work instructions, the power supply control unit is used to control the on and off of the power supply line, thereby realizing remote control of the industrial injection molding machine body 1, avoiding the waste of resources caused by the industrial injection molding machine body 1 being in standby state for a long time, and improving the service life of the industrial injection molding machine body 1. The power supply unit is used to provide working voltage, and the wireless communication unit is used to build a communication path between the energy-saving control device 3 and the monitoring center.

[0055] As a preference, Figure 4 As shown, the main control unit includes a main control chip circuit, a reset circuit and a crystal oscillator circuit. The specific model of the main control chip of the main control chip circuit is STM32F103C8T6;

[0056] The input end of the main control chip circuit is electrically connected to the output end of the data acquisition unit 34 (nodes RXD and TXD in the figure), the output end of the reset circuit and the output end of the crystal oscillator circuit, the power supply end of the main control chip circuit is electrically connected to the output end of the power supply unit (node ​​Vcc in the figure), and the output end of the main control chip circuit is electrically connected to the input end of the industrial computer 15 of the industrial injection molding machine body 1 (nodes RXD1 and TXD1 in the figure), the control end of the first solenoid valve of the energy recovery device 2 (node ​​P1 in the figure), the control end of the second solenoid valve (node ​​P2 in the figure), the control end of the first water pump (node ​​P3 in the figure), the input end of the human-computer interaction unit 33 (node ​​P4 in the figure), the input end of the wireless communication unit (nodes RXD2 and TXD2 in the figure) and the control end of the power supply control unit (nodes RXD3 and TXD3 in the figure).

[0057] The main control chip circuit is used to control the normal operation of other circuits, summarize, analyze and process the real-time operation data sent by the data acquisition unit 34, the reset circuit is used to realize the manual reset function through the key switch, and the crystal oscillator circuit is composed of a crystal oscillator and related circuit elements, and is used to provide a clock signal, a timing signal or a reference signal.

[0058] As a preference, Figure 5 As shown, the wireless communication unit includes a wireless communication circuit, the specific model of the wireless communication chip of the wireless communication circuit is SIM900A, the input end of the wireless communication circuit is electrically connected to the output end of the main control unit, the power supply end of the wireless communication circuit is electrically connected to the output end of the power supply unit, and the output end of the wireless communication circuit is communicatively connected to the external control center.

[0059] Preferably, the power supply unit comprises Figure 6 The rectifier circuit shown and Figure 7 In the voltage stabilizing circuit shown, the input end of the rectifier circuit is electrically connected to the mains power line, and the output end of the rectifier circuit is electrically connected to the input end of the voltage stabilizing circuit;

[0060] The output end of the voltage stabilizing circuit is electrically connected to the power supply end of the main control unit and the power supply end of the wireless communication unit respectively.

[0061] Preferably, the power supply control unit includes a solid-state relay drive circuit and a solid-state relay, the specific model of the solid-state relay drive chip of the solid-state relay drive circuit is C200H, the input end of the solid-state relay drive circuit is electrically connected to the output end of the main control unit, and the output end of the solid-state relay drive circuit is electrically connected to the control end of the solid-state relay;

[0062] The specific model of the solid-state relay is JGT39D, and the switch end of the solid-state relay is connected in series to the power supply line of the industrial injection molding machine body 1.

[0063] The solid-state relay driver can be used to drive the solid-state relay. The solid-state relay realizes the switching state of the switch end according to the DC control signal sent by the solid-state relay driver, thereby realizing the on and off control of the power supply line.

[0064] Preferably, the human-computer interaction unit 33 includes a display screen circuit, a key circuit and an audio-visual reminder circuit, and the input end of the display screen circuit, the input end of the key circuit and the input end of the audio-visual reminder circuit are all electrically connected to the output end of the main control unit;

[0065] The data acquisition unit 34 includes an A / D converter of specific model AD7606, a current transformer of specific model SEN-CTY3, a voltage transformer of specific model ZMPT107, a first temperature and humidity sensor of specific model PT100, and a second temperature and humidity sensor of specific model PT100. The current transformer is connected in series to the power supply line of the industrial injection molding machine body 1, and the signal end of the current transformer is electrically connected to the first input end of the A / D converter. The voltage transformer is connected in parallel to the power supply line of the industrial injection molding machine body 1, and the signal end of the voltage transformer is electrically connected to the second input end of the A / D converter.

[0066] The first temperature and humidity sensor is arranged inside the molding cavity 14 of the industrial injection molding machine body 1, and the signal end of the first temperature and humidity sensor is electrically connected to the third input end of the A / D converter. The second temperature and humidity sensor is arranged inside the hot water tank 24 of the energy recovery device 2, and the signal end of the second temperature and humidity sensor is electrically connected to the fourth input end of the A / D converter, and the output end of the A / D converter is electrically connected to the input end of the main control unit.

[0067] The first temperature and humidity sensor collects the first temperature and humidity data inside the shaping cavity 14, the current transformer collects the power supply current data of the industrial injection molding machine body 1, and the voltage transformer collects the power supply voltage data of the industrial injection molding machine body 1, which are used as the real-time operation data of the industrial injection molding machine body 1 to assist the industrial computer 15 in transmitting the energy consumption, temperature, pressure and other parameters during the injection molding process, adjust the injection speed, pressure and other parameters, and realize energy-saving control of the industrial injection molding machine body 1. The second temperature and humidity sensor collects the second temperature and humidity data of the hot water tank 24, which is used to assist the energy-saving control device 3 in controlling the energy recovery device 2 to recover energy.

[0068] The energy-saving system for an industrial injection molding machine provided by the utility model realizes remote control of an industrial injection molding machine body by remote data transmission between a monitoring center and an energy-saving control device, thereby improving functionality and practicability, avoiding waste of resources caused by the industrial injection molding machine body being in a standby state for a long time, and improving the service life of the industrial injection molding machine body; the energy-saving control device accurately controls the industrial injection molding machine body to achieve the purpose of energy saving and consumption reduction; the energy recovery device recovers waste heat in the injection molding process of the industrial injection molding machine body, thereby improving energy utilization efficiency, reducing energy consumption, reducing production costs, reducing waste heat emissions, and reducing environmental burdens.

[0069] The utility model is not limited to the above optional implementation modes, and anyone can derive other various forms of products under the enlightenment of the utility model. The above specific implementation modes should not be understood as limiting the protection scope of the utility model. The protection scope of the utility model shall be based on the definition in the claims, and the description can be used to interpret the claims.

Claims

1. An energy-saving system for an industrial injection molding machine, characterized in that: The invention comprises an industrial injection molding machine body (1), an energy recovery device (2) and an energy-saving control device (3), wherein the energy recovery device (2) and the energy-saving control device (3) are both arranged on the industrial injection molding machine body (1), the energy-saving control device (3) is electrically connected to the industrial injection molding machine body (1) and the energy recovery device (2), respectively, and the energy-saving control device (3) is communicatively connected to an external monitoring center; The industrial injection molding machine body (1) comprises an industrial injection molding machine housing (11), an injection mechanism (12), a mold mechanism (13), a molding cavity (14) and an industrial control computer (15); the injection mechanism (12), the mold mechanism (13), the molding cavity (14) and the industrial control computer (15) are all arranged inside the industrial injection molding machine housing (11); the output end of the injection mechanism (12) and the input end of the mold mechanism (13) are arranged inside the molding cavity (14); the control end of the injection mechanism (12) and the control end of the mold mechanism (13) are both electrically connected to the industrial control computer (15); the input end of the industrial control computer (15) is electrically connected to the output end of the energy-saving control device (3); and an energy recovery device (2) is arranged outside the molding cavity (14); The energy recovery device (2) is arranged on the back of the industrial injection molding machine body (1), and the energy recovery device (2) comprises an energy recovery device housing (21), a cold water tank (22), an energy recovery curved pipe (23) and a hot water tank (24); A cold water tank is provided at the top of the inner part of the energy recovery device housing (21), and a hot water tank is provided at the bottom of the inner part of the energy recovery device housing (21); a heat insulation board is provided at the contact part between the cold water tank and the hot water tank; a cold water tank (22) is provided inside the cold water tank; a hot water tank (24) is provided inside the hot water tank; a first input pipe is provided at the input end of the cold water tank (22); and an output end of the cold water tank (22) is fixedly connected to the input end of the energy recovery curved pipe (23) via a first output pipe; the input end of the first input pipe is fixedly connected to an external municipal pipe network; a first solenoid valve is provided on the first input pipe; and a first water pump is provided on the first output pipe; The energy recovery curved pipe (23) is arranged around the outside of the shaping cavity (14), and the output end of the energy recovery curved pipe (23) is fixedly connected to the input end of the hot water tank (24) via a second input pipe, the second input pipe is provided with a second solenoid valve, the output end of the hot water tank (24) is provided with a second output pipe, the output end of the second output pipe is fixedly connected to an external municipal pipe network, and the second output pipe is provided with a second water pump; The control end of the first solenoid valve, the control end of the second solenoid valve, the control end of the first water pump and the control end of the second water pump are all electrically connected to the output end of the energy-saving control device (3); The energy-saving control device (3) comprises an energy-saving control device housing (31), an energy-saving control circuit board (32), a human-machine interaction unit (33) and a data acquisition unit (34); the energy-saving control circuit board (32) is arranged inside the energy-saving control device housing (31); the output end of the energy-saving control circuit board (32) is electrically connected to the input end of the industrial computer (15) of the industrial injection molding machine body (1), the control end of the first solenoid valve, the control end of the second solenoid valve and the control end of the first water pump of the energy recovery device (2) and the input end of the human-machine interaction unit (33); The input end of the energy-saving control circuit board (32) is electrically connected to the output end of the data acquisition unit (34), the power supply end of the energy-saving control circuit board (32) is electrically connected to the mains power line, the communication end of the energy-saving control circuit board (32) is communicatively connected to an external monitoring center, and the switch end of the energy-saving control circuit board (32) is electrically connected to the power supply line of the industrial injection molding machine body (1); The human-machine interaction unit (33) is arranged outside the housing (31) of the energy-saving control device, the data acquisition unit (34) is arranged on the industrial injection molding machine body (1), and the input end of the data acquisition unit (34) is electrically connected to the power supply circuit of the industrial injection molding machine body (1).

2. The energy-saving system for industrial injection molding machines according to claim 1, characterized in that: The energy-saving control circuit board (32) comprises a main control unit, a wireless communication unit, a power supply unit and a power supply control unit, wherein the input end of the main control unit is electrically connected to the output end of the data acquisition unit (34), the power supply end of the main control unit is electrically connected to the output end of the power supply unit, and the output end of the main control unit is electrically connected to the input end of the industrial computer (15) of the industrial injection molding machine body (1), the control end of the first solenoid valve of the energy recovery device (2), the control end of the second solenoid valve, the control end of the first water pump, the input end of the human-machine interaction unit (33), the input end of the wireless communication unit and the control end of the power supply control unit; The output end of the wireless communication unit is connected to an external monitoring center for communication, the switch end of the power supply control unit is electrically connected to the power supply line of the industrial injection molding machine body (1), and the input end of the power supply unit is electrically connected to the mains power line.

3. The energy-saving system for industrial injection molding machines according to claim 2, characterized in that: The main control unit comprises a main control chip circuit, a reset circuit and a crystal oscillator circuit, the input end of the main control chip circuit is electrically connected to the output end of the data acquisition unit (34), the output end of the reset circuit and the output end of the crystal oscillator circuit respectively, the power supply end of the main control chip circuit is electrically connected to the output end of the power supply unit, and the output end of the main control chip circuit is electrically connected to the input end of the industrial computer (15) of the industrial injection molding machine body (1), the control end of the first solenoid valve of the energy recovery device (2), the control end of the second solenoid valve, the control end of the first water pump, the input end of the human-computer interaction unit (33), the input end of the wireless communication unit and the control end of the power supply control unit respectively.

4. The energy-saving system for industrial injection molding machines according to claim 2, characterized in that: The wireless communication unit includes a wireless communication circuit, an input end of the wireless communication circuit is electrically connected to an output end of the main control unit, a power supply end of the wireless communication circuit is electrically connected to an output end of the power supply unit, and an output end of the wireless communication circuit is communicatively connected to an external control center.

5. The energy-saving system for industrial injection molding machines according to claim 2, characterized in that: The power supply unit includes a rectifier circuit and a voltage stabilizing circuit, the input end of the rectifier circuit is electrically connected to the mains power line, and the output end of the rectifier circuit is electrically connected to the input end of the voltage stabilizing circuit; The output end of the voltage stabilizing circuit is electrically connected to the power supply end of the main control unit and the power supply end of the wireless communication unit respectively.

6. The energy-saving system for industrial injection molding machines according to claim 2, characterized in that: The power supply control unit includes a solid-state relay drive circuit and a solid-state relay, the input end of the solid-state relay drive circuit is electrically connected to the output end of the main control unit, and the output end of the solid-state relay drive circuit is electrically connected to the control end of the solid-state relay; The switch end of the solid-state relay is connected in series to the power supply circuit of the industrial injection molding machine body (1).

7. The energy-saving system for industrial injection molding machines according to claim 2, characterized in that: The human-machine interaction unit (33) comprises a display screen circuit, a key circuit and an audio-visual reminder circuit, and the input end of the display screen circuit, the input end of the key circuit and the input end of the audio-visual reminder circuit are all electrically connected to the output end of the main control unit; The data acquisition unit (34) comprises an A / D converter, a current transformer, a voltage transformer, a first temperature and humidity sensor, and a second temperature and humidity sensor, wherein the current transformer is connected in series to the power supply line of the industrial injection molding machine body (1), and the signal end of the current transformer is electrically connected to the first input end of the A / D converter, and the voltage transformer is connected in parallel to the power supply line of the industrial injection molding machine body (1), and the signal end of the voltage transformer is electrically connected to the second input end of the A / D converter; The first temperature and humidity sensor is arranged inside the molding cavity (14) of the industrial injection molding machine body (1), and the signal end of the first temperature and humidity sensor is electrically connected to the third input end of the A / D converter; the second temperature and humidity sensor is arranged inside the hot water tank (24) of the energy recovery device (2), and the signal end of the second temperature and humidity sensor is electrically connected to the fourth input end of the A / D converter; and the output end of the A / D converter is electrically connected to the input end of the main control unit.

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