A temperature acquisition monitoring closed-loop control device

Abstract

The present invention discloses a temperature acquisition and monitoring closed-loop control device, the control device comprises a frame, a mold, a clamping mechanism, an injection device and a circulating cooling device, the mold comprises a fixed mold and a movable mold, a liquid injection hole is arranged on the right side of the mold, the clamping mechanism is arranged on the frame, and is used to drive the movable mold to cover or open the fixed mold, the injection device comprises an injection cavity, a driving block, a connecting rod, an elastic member, a follower, a cam and a servo motor, the servo motor drives the cam to rotate, so that the cam and the follower cooperate to drive the driving block to slide in the injection cavity, and inject metal liquid into the mold through the liquid injection hole, the circulating cooling device is connected to the mold, and the circulating cooling device is used to reduce the temperature of the mold, compared with the prior art, the thermal balance effect of the mold is better.

Description

Technical Field

[0001] The invention relates to the technical field of die-casting temperature control, and in particular to a temperature acquisition monitoring closed-loop control device. Background Art

[0002] Die casting is a metal casting process characterized by the use of a die cavity to apply high pressure to the molten metal. The die is usually made of a stronger alloy, and the process is somewhat similar to injection molding. Most die castings are non-ferrous, such as zinc, copper, aluminum, magnesium, lead, tin, lead-tin alloys and their alloys. Depending on the type of die casting, a cold chamber die casting machine or a hot chamber die casting machine is required. Die casting machines can be divided into two main types, hot chamber die casting machines and cold chamber die casting machines. The difference lies in how much force they can withstand, and the typical pressure range is between 400 and 4000 kg. Cold chamber die casting can be used when die casting metals that cannot be used for hot chamber die casting process, including aluminum, magnesium, copper and zinc alloys with high aluminum content. In this process, the metal needs to be melted in a separate crucible. Then a certain amount of molten metal is transferred to an unheated injection chamber or injection nozzle. The metal is injected into the mold through hydraulic or mechanical pressure. Cold chamber die-casting machines are divided into vertical and horizontal types. Vertical die-casting machines are usually small machines, while horizontal die-casting machines have various models. The existing horizontal die-casting machines have poor mold thermal balance, which leads to a significant reduction in mold life and an increase in product defective rate, thereby reducing product quality. Summary of the invention

[0003] The purpose of the present invention is to provide a temperature acquisition monitoring closed-loop control device to solve the technical problem of poor mold thermal balance effect in the prior art.

[0004] In order to achieve the above object, the technical solution of the present invention provides a temperature acquisition monitoring closed-loop control device, the control device comprising:

[0005] frame;

[0006] A mold, wherein the mold comprises a fixed mold and a movable mold, the fixed mold is arranged on the frame, and the fixed mold is provided with a first cavity, a liquid injection hole is arranged on the right side of the first cavity, and the movable mold is provided with a second cavity, and the second cavity is arranged corresponding to the first cavity to form a molding cavity of the product;

[0007] A mold clamping mechanism, which is disposed on the frame and is used to drive the movable mold to close or open the fixed mold;

[0008] An injection device, the injection device comprising an injection chamber, a driving block, a connecting rod, an elastic member, a follower, a cam and a servo motor, the injection chamber being arranged on the right side of the fixed mold, and the left side of the injection chamber being communicated with the injection hole, a through hole being arranged on the right side of the injection chamber, the driving block being arranged in the injection chamber, the connecting rod passing through the through hole, and one end of the connecting rod being connected to the driving block and the other end being connected to the follower, the elastic member being sleeved on the connecting rod, and the elastic member being located between the follower and the injection chamber, the servo motor being arranged on the frame, the cam being arranged on the rotating shaft of the servo motor, and the cam and the follower correspondingly cooperating to drive the driving block to slide in the injection chamber;

[0009] A circulating cooling device is connected to the mold and is used to reduce the temperature of the mold.

[0010] Preferably, the control device further comprises a die-casting control box, which is arranged on the frame, the movable mold is provided with a first intermittent water flow channel, a first point cooling pipe hole and a first normally flowing water flow channel, the fixed mold is provided with a second intermittent water flow channel, a second point cooling pipe hole and a second normally flowing water flow channel, the circulating cooling device comprises a water supply main line, an air supply main line, a water return main line, a first intermittent water supply device, a first normally flowing water device, a first water return station, a second intermittent water supply device, a second normally flowing water device, a second water return station and a PLC control module, and the PLC control module is used to control the circulating cooling device to cool the mold;

[0011] Wherein, the first intermittent water supply device comprises a first distribution box, a first diverter box and a first point cold head, the two inlet ends of the first distribution box are respectively connected to the water main line and the gas main line, the outlet end of the first distribution box is connected to the inlet end of the first diverter box, one outlet end of the first diverter box is connected to the inlet end of the first point cold head, the other outlet end of the first diverter box is connected to the inlet end of the first intermittent water flow channel, the outlet end of the first intermittent water flow channel is connected to the first water return station through a return pipe, the outlet end of the first point cold head is connected to the first water return station through a return pipe, the first point cold head extends into the first point cooling pipe hole, the inlet end of the first regular water device is connected to the water main line, the outlet end of the first regular water device is connected to the inlet end of the first regular water flow channel, the outlet end of the first regular water flow channel is connected to the first water return station through a return pipe, and the first water return station is connected to the water return main line;

[0012] Wherein, the second intermittent water supply device includes a second distribution box, a second diverter box and a second point cold head, the two inlet ends of the second distribution box are respectively connected to the water supply main line and the gas supply main line, the outlet end of the second distribution box is connected to the inlet end of the second diverter box, one outlet end of the second diverter box is connected to the inlet end of the second point cold head, the other outlet end of the second diverter box is connected to the inlet end of the second intermittent water flow channel, the outlet end of the second intermittent water flow channel is connected to the second water return station through a return pipe, the outlet end of the second point cold head is connected to the second water return station through a return pipe, the second point cold head extends into the second point cooling pipe hole, the inlet end of the second regular water device is connected to the water supply main line, the outlet end of the second regular water device is connected to the inlet end of the second regular water flow channel, the outlet end of the second regular water flow channel is connected to the second water return station through a return pipe, and the second water return station is connected to the water return main line.

[0013] Preferably, the mold clamping mechanism includes a telescopic driving member, a plurality of guide rails and a plurality of sliding members, the plurality of guide rails are transversely and evenly arranged on the frame, the plurality of sliding members are respectively arranged on the plurality of guide rails, the side edge of the movable mold is connected to the plurality of sliding members, the telescopic driving member is arranged on the frame, and the telescopic driving member is connected to the movable mold, and the telescopic driving member drives the movable mold to slide along the guide rails.

[0014] Preferably, the telescopic driving member is a telescopic hydraulic cylinder.

[0015] Preferably, the number of the plurality of guide rails and the number of the plurality of sliding members are both four, and the four guide rails are arranged in a rectangular array transversely on the frame, and the four sliding members are respectively disposed on the four guide rails in a one-to-one correspondence.

[0016] Preferably, the first constant water flow device and the second constant water flow device are both provided with a proportional regulating valve, and the proportional regulating valve is used to control the water flow rate, and the first distribution box and the second distribution box are both provided with a solenoid valve, and the solenoid valve is used to control the water flow interruption.

[0017] Preferably, the mold is provided with a thermocouple, a first temperature sensor and a second temperature sensor, wherein the thermocouple is used to monitor the temperature change of the mold, the first temperature sensor is used to monitor the water inlet temperature of the mold, and the second temperature sensor is used to monitor the water outlet temperature of the mold.

[0018] Preferably, the control device further comprises a liquid adding device, which is disposed above the injection cavity and is used for adding molten metal into the injection cavity.

[0019] Preferably, the liquid adding device includes a liquid pot, a heating module and an insulation layer. The liquid pot is arranged above the injection cavity, and the liquid pot is communicated with the injection cavity. The insulation layer is evenly arranged on the outside of the liquid pot. The heating module is arranged on the outside of the liquid pot and is used to heat the molten metal in the liquid pot.

[0020] Preferably, the cross section of the liquid pot is a V-shaped structure.

[0021] In summary, the technical solution of the temperature acquisition monitoring closed-loop control device of the present invention has at least the following beneficial effects: the temperature acquisition monitoring closed-loop control device reduces the temperature inside the mold through the circulating cooling device to achieve the thermal balance effect of the mold. For the movable mold, the circulating cooling device divides the water source in the water supply main line into multiple branches through the first distribution box and the first diversion box of the first intermittent water supply device. One of the branch water flows through the first point cold head to perform spot cooling on the first point cooling pipe hole in the movable mold. The point cooling method has the advantages of concentrated point cooling position, fast cooling speed and good effect. Another branch water flows into the first intermittent water flow channel in the movable mold for circulating cooling. After the circulating water flows out of the first intermittent water flow channel, it flows back to the first water return station through the reflux pipe, thereby performing circulating intermittent water supply cooling on the inside of the movable mold. In addition, a part of the water source in the water supply main line is continuously passed into the first constant water flow channel in the movable mold through the first constant water device for circulating cooling. After circulating cooling, The water flows back to the first water return station through the return pipe, and the cooled water source in the first water return station flows into the water storage tank in the workshop through the water return main line again, thereby completing intermittent water supply circulation cooling, continuous water supply circulation cooling and point cooling of the movable mold; wherein, the PLC control module receives the mold water inlet temperature signal detected and collected by the first temperature sensor, the mold water outlet return temperature signal detected and collected by the second temperature sensor, and the mold temperature change signal collected by the thermocouple, and processes and outputs the control signal to control the circulating cooling device to cool the mold, and controls the water flow time of each branch by the solenoid valve in the first distribution box, and controls the water flow rate of each branch by controlling the opening size of the proportional regulating valve of the first constant water flow device. The PLC control module collects the temperature signals detected by each sensor, and establishes real-time communication with the die-casting control box. Through calculation, the water flow time and the water flow rate are automatically controlled, thereby forming a closed-loop control. Compared with the prior art, the thermal balance effect of the mold is better.

[0022] In addition, the injection device drives the cam to rotate through the servo motor, and the cam and the follower cooperate to drive the driving block to slide in the injection cavity and inject the molten metal into the mold through the injection hole. During the injection process, the follower squeezes the elastic member to slowly and steadily inject the molten metal. After the injection is completed, the driving block is driven to reset by the elastic force of the elastic member and waits for the next injection working cycle. After the product in the mold is formed, the clamping mechanism drives the movable mold to slide to the left along the guide rail through the telescopic driving member, thereby opening the fixed mold of the mold to facilitate the removal of the molded product.

[0023] In order to make the concept and other objects, advantages, features and functions of the present invention more clearly understood, preferred embodiments will be specifically cited in the following specific implementation manner and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a structural schematic diagram of a temperature acquisition monitoring closed-loop control device provided by an embodiment of the present invention;

[0026] Figure 2 is a schematic structural diagram of a circulating cooling device provided by an embodiment of the present invention;

[0027] Description of reference numerals: 1. driving block; 2. liquid pot; 3. fixed mold; 301. second point cooling pipe hole; 302. second intermittent water flow channel; 303. second normally-flowing water flow channel; 4. movable mold; 401. first point cooling pipe hole; 402. first intermittent water flow channel; 403. first normally-flowing water flow channel; 5. guide rail; 6. circulating cooling device; 601. PLC control module; 602. first water return station; 603. first distribution box; 604. first diversion box; 605. first point cold head; 606. first normally-flowing water device; 607. 07. Gas transmission main line; 608. Water transmission main line; 609. Water return main line; 610. Second water return station; 611. Second constant water flow device; 612. Second distribution box; 613. Second diversion box; 614. Second cold head; 615. Thermocouple; 7. Liquid injection hole; 8. Passage; 9. Insulation layer; 10. Heating module; 11. Frame; 12. Sliding part; 13. Telescopic driving part; 14. Connecting rod; 15. Elastic part; 16. Follower; 17. Injection cavity; 18. Cam; 19. Die-casting control box. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the present invention, for a clearer description, the following explanation is made: the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. in the text is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0030] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In addition, the terms “first” and “second” are only used for the purpose of clarity or simplicity of description and should not be understood as indicating or implying relative importance or quantity.

[0032] Please also read Figure 1 to Figure 2, this embodiment provides a temperature acquisition monitoring closed-loop control device, the control device includes a frame 11, a mold, a clamping mechanism, an injection device and a circulating cooling device 6, wherein the mold includes a fixed mold 3 and a movable mold 4, the fixed mold 3 is arranged on the frame 11, and the fixed mold 3 is provided with a first cavity, and a liquid injection hole 7 is arranged on the right side of the first cavity, and the movable mold 4 is provided with a second cavity, and the second cavity is arranged corresponding to the first cavity to form a molding cavity of the product; the clamping mechanism is arranged on the frame 11, and is used to drive the movable mold 4 to cover or open the fixed mold 3; the injection device includes an injection cavity 17, a driving block 1, a connecting rod 14, an elastic member 15, a follower 16, a cam 18 and a servo motor, the injection cavity 17 is arranged on the right side of the fixed mold 3, and the left side of the injection cavity 17 is connected to the liquid injection hole 7, and the right side of the injection cavity 17 A through hole is provided, the driving block 1 is provided in the injection cavity 17, the connecting rod 14 passes through the through hole, and one end of the connecting rod 14 is connected to the driving block 1, and the other end is connected to the follower 16, the elastic member 15 is sleeved on the connecting rod 14, and the elastic member 15 is located between the follower 16 and the injection cavity 17, the servo motor is provided on the frame 11, the cam 18 is provided on the rotating shaft of the servo motor, and the cam 18 and the follower 16 correspond to drive the driving block 1 to slide in the injection cavity 17; the circulating cooling device 6 is connected to the mold, and is used to reduce the temperature of the mold. The PLC control module 601 collects the detected water source temperature and accurately controls the circulating cooling device 6 to cool the mold to obtain a temperature that is more suitable for cooling the mold, thereby improving the thermal balance effect of the mold, thereby ensuring the quality of the die-casting product.

[0033] In one embodiment, the control device also includes a die-casting control box 19, which is arranged on the frame 11, and the die-casting control box 19 is used to control the die-casting molding. The movable mold 4 is provided with a first intermittent water flow channel 402, a first point cooling pipe hole 401 and a first normally-conducting water flow channel 403, and the fixed mold 3 is provided with a second intermittent water flow channel 302, a second point cooling pipe hole 301 and a second normally-conducting water flow channel 303. The circulating cooling device 6 includes a water supply main line 608, an air supply main line 607, a water return main line 609, a first intermittent water supply device, a first normally-conducting water device 606, a first water return station 602, a second intermittent water supply device, a second normally-conducting water device 611, a second water return station 610 and a PLC control module 601, and the PLC control module 601 is used to control the circulating cooling device 6 to cool the mold.

[0034] The first intermittent water supply device includes a first distribution box 603, a first diverter box 604 and a first point cold head 605. The two inlet ends of the first distribution box 603 are respectively connected to the water main line 608 and the gas main line 607. The outlet end of the first distribution box 603 is connected to the inlet end of the first diverter box 604. One outlet end of the first diverter box 604 is connected to the inlet end of the first point cold head 605. The other outlet end of the first diverter box 604 is connected to the inlet end of the first intermittent water flow channel 402. The outlet end of the first intermittent water flow channel 402 is connected through The return pipe is connected to the first water return station 602, the outlet end of the first point cold head 605 is connected to the first water return station 602 through the return pipe, the first point cold head 605 extends into the first point cooling pipe hole 401, the inlet end of the first constant water device 606 is connected to the water supply main line 608, the outlet end of the first constant water device 606 is connected to the inlet end of the first constant water flow channel 403, the outlet end of the first constant water flow channel 403 is connected to the first water return station 602 through the return pipe, and the first water return station 602 is connected to the water return main line 609.

[0035] For the movable mold 4, the circulating cooling device 6 divides the water source in the main water supply line 608 into multiple branches through the first distribution box 603 and the first diversion box 604 of the first intermittent water supply device. The water flow in one of the branches passes through the first point cold head 605 to perform spot cooling on the first point cooling pipe hole 401 in the movable mold 4. The point cooling method has the advantages of concentrated point cooling position, fast cooling speed, and good effect. The water flow in another branch flows into the first intermittent water flow channel 402 in the movable mold 4 for circulating cooling. After the circulating water flows out of the first intermittent water flow channel 402, it flows back to the first water return station 602 through the return pipe, thereby performing circulating intermittent water supply cooling on the inside of the movable mold 4. In addition, a part of the water source in the main water supply line 608 is continuously passed into the first constant water flow channel 403 in the movable mold 4 through the first constant water device 606 for circulating cooling. The water after circulating cooling flows back to the first water return station 602 through the return pipe. The water in the first water return station 602 after cooling The water source flows into the water storage tank in the workshop again through the water return main line 609, thereby completing intermittent water supply circulation cooling, continuous water supply circulation cooling and point cooling of the movable mold 4; wherein, the PLC control module 601 receives the mold water inlet temperature signal detected and collected by the first temperature sensor, the mold water outlet return temperature signal detected and collected by the second temperature sensor, and the mold temperature change signal collected by the thermocouple 615, and processes and outputs the control signal to control the circulating cooling device 6 to cool the mold, and controls the water flow time of each branch by the solenoid valve in the first distribution box 603, and controls the water flow rate of each branch by controlling the opening size of the proportional control valve of the first constant water flow device 606. The PLC control module 601 collects the temperature signals detected by each sensor, and establishes real-time communication with the die-casting control box 19. Through calculation, the water flow time and the water flow rate are automatically controlled, thereby forming a closed-loop control. Compared with the prior art, the thermal balance effect of the mold is better.

[0036] The second intermittent water supply device includes a second distribution box 612, a second diverter box 613 and a second point cold head 614. The two inlet ends of the second distribution box 612 are respectively connected to the water main line 608 and the gas main line 607. The outlet end of the second distribution box 612 is connected to the inlet end of the second diverter box 613. One outlet end of the second diverter box 613 is connected to the inlet end of the second point cold head 614. The other outlet end of the second diverter box 613 is connected to the inlet end of the second intermittent water flow channel 302. The outlet end of the second intermittent water flow channel 302 is connected through The return pipe is connected to the second water return station 610, the outlet end of the second point cold head 614 is connected to the second water return station 610 through the return pipe, the second point cold head 614 extends into the second point cooling pipe hole 301, the inlet end of the second constant water device 611 is connected to the water supply main line 608, the outlet end of the second constant water device 611 is connected to the inlet end of the second constant water flow channel 303, the outlet end of the second constant water flow channel 303 is connected to the second water return station 610 through the return pipe, and the second water return station 610 is connected to the water return main line 609.

[0037] Specifically, the first constant water flow device 606 and the second constant water flow device 611 are both provided with proportional regulating valves for controlling the water flow rate. The first distribution box 603 and the second distribution box 612 are both provided with solenoid valves for controlling the water flow. Compared with the prior art, the embodiment of the present invention automatically controls the connection and disconnection of the water path through the solenoid valve, with a high degree of automation, thus avoiding the inability to control the water flow through the mold, resulting in a normally open or normally closed state. The present invention provides an effective cooling period and cooling water volume according to the process requirements, thereby automatically controlling the temperature balance of the mold.

[0038] Furthermore, the mold is provided with a thermocouple 615, a first temperature sensor and a second temperature sensor, wherein the thermocouple 615 is used to monitor the temperature of the mold, the first temperature sensor is used to monitor the water inlet temperature of the mold, and the second temperature sensor is used to monitor the water outlet temperature of the mold.

[0039] For the fixed mold 3, the circulating cooling device 6 divides the water source in the water supply main line 608 into multiple branches through the second distribution box 612 and the second diversion box 613 of the second intermittent water supply device. The water flow in one of the branches passes through the second point cold head 614 to perform spot cooling on the second point cooling pipe hole 301 in the fixed mold 3. The point cooling method has the advantages of concentrated point cooling position, fast cooling speed and good effect. The water flow in another branch flows into the second intermittent water flow channel 302 in the movable mold 4 for circulating cooling. After the circulating water flows out of the second intermittent water flow channel 302, it flows back to the second water return station 610 through the return pipe, thereby performing circulating intermittent water supply cooling on the inside of the fixed mold 3. In addition, a part of the water source in the water supply main line 608 is continuously passed into the second constant water flow channel 303 in the fixed mold 3 through the second constant water device 611 for circulating cooling. The water after circulating cooling flows back to the second water return station 610 through the return pipe. The water source after cooling in station 610 flows into the water storage tank in the workshop again through the water return main line 609, thereby completing intermittent water supply circulation cooling, continuous water supply circulation cooling and point cooling of the fixed mold 3; wherein, the PLC control module 601 receives the mold water inlet temperature signal detected and collected by the first temperature sensor, the mold water outlet return temperature signal detected and collected by the second temperature sensor, and the mold temperature change signal collected by the thermocouple 615, and processes and outputs the control signal to control the circulating cooling device 6 to cool the mold, and controls the water flow time of each branch by the solenoid valve in the second distribution box 612, and controls the water flow rate of each branch by controlling the opening size of the proportional control valve of the second constant water flow device 611. The PLC control module 601 collects the temperature signals detected by each sensor, and establishes real-time communication with the die-casting control box 19. Through calculation, the water flow time and the water flow rate are automatically controlled, thereby forming a closed-loop control.

[0040] In addition, after the control device intermittently passes water to cool the mold water channel, the air supply main line 607 then passes compressed air to the first intermittent water flow channel 402 of the movable mold 4 and the second intermittent water flow channel 302 of the fixed mold 3, respectively, to clean the water, impurities and pollutants retained in the mold water channel. On the one hand, by cleaning the impurities and pollutants in the mold water channel with compressed air, scaling and blockage in the mold water channel can be effectively prevented to improve the uniformity of water flow in the mold water channel; on the other hand, by cleaning the residual water in the mold water channel with compressed air, the residual water can be avoided from causing the mold to be in a cooling state all the time, so as to prevent the residual water from affecting the thermal balance effect of the mold.

[0041] Among them, the second distribution box 612 and the second diversion box 613 divide the water source in the main water supply line 608 into multiple pipelines, which can be used to cool multiple molds at the same time. The multiple solenoid valves in the second distribution box 612 respectively control the on-off state of water or ventilation of multiple branches to ensure the orderly progress of the thermal balance process of multiple molds. It is easy to use, has high cooling efficiency, and intelligently and automatically controls the on-off state of water and gas circuits. It has a self-diagnosis function. When an abnormality occurs during work, the PLC control module 601 outputs an alarm and displays the cause of the fault record; when a serious fault occurs, the equipment is forced to stop running. The control device can be connected and coordinated with the die-casting machine. The working process of each cycle is consistent with the working rhythm of the die-casting machine. The die-casting machine issues a start command, and the equipment starts to circulate automatically, ends within the working cycle of the die-casting machine, and starts the next cycle of work according to the die-casting machine command.

[0042] Specifically, the mold closing mechanism includes a telescopic driving member 13, a plurality of guide rails 5 and a plurality of sliding members 12. The plurality of guide rails 5 are laterally and evenly arranged on the frame 11. The plurality of sliding members 12 are respectively arranged on the plurality of guide rails 5. The side edges of the movable mold 4 are connected to the plurality of sliding members 12. The telescopic driving member 13 is arranged on the frame 11. Furthermore, the telescopic driving member 13 is connected to the movable mold 4. The telescopic driving member 13 drives the movable mold 4 to slide along the guide rails 5.

[0043] Furthermore, the telescopic driving member 13 is a telescopic hydraulic cylinder.

[0044] In one embodiment, the number of the plurality of guide rails 5 and the number of the plurality of slide members 12 are both four, and the four guide rails 5 are arranged in a rectangular array transversely on the frame 11 , and the four slide members 12 are respectively disposed on the four guide rails 5 in a one-to-one correspondence.

[0045] In one embodiment, the control device further includes a liquid adding device, which is disposed above the injection cavity 17 and is used to add molten metal into the injection cavity 17 .

[0046] Specifically, the liquid adding device includes a liquid pot 2, a heating module 10 and an insulation layer 9. The liquid pot 2 is arranged above the injection cavity 17, and the liquid pot 2 is connected to the injection cavity 17 through a passage 8. The insulation layer 9 is evenly arranged on the outside of the liquid pot 2. The heating module 10 is arranged on the outside of the liquid pot 2 and is used to heat the molten metal in the liquid pot 2.

[0047] Furthermore, the cross section of the liquid pot 2 is a V-shaped structure.

[0048] The die-casting process of the temperature acquisition monitoring closed-loop control device of this embodiment is as follows: the die-casting molding is controlled by the die-casting control box 19, wherein the injection device drives the cam 18 to rotate through the servo motor, and the cam 18 and the follower 16 cooperate to drive the driving block 1 to slide in the injection cavity 17, and inject the molten metal into the mold through the injection hole 7. During the injection process, the follower 16 squeezes the elastic member 15 to slowly and steadily inject the molten metal. After the injection is completed, the elastic force of the elastic member 15 drives the driving block 1 to reset and wait for the next injection working cycle. After the product in the mold is formed, the clamping mechanism drives the movable mold 4 to slide to the left along the guide rail 5 through the telescopic driving member 13, thereby opening the fixed mold 3 of the mold to facilitate the removal of the molded product.

[0049] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A temperature acquisition monitoring closed-loop control device, characterized in that: The control device comprises: frame; A mold, wherein the mold comprises a fixed mold and a movable mold, the fixed mold is arranged on the frame, and the fixed mold is provided with a first cavity, a liquid injection hole is arranged on the right side of the first cavity, and the movable mold is provided with a second cavity, and the second cavity is arranged corresponding to the first cavity to form a molding cavity of the product; A mold clamping mechanism, which is disposed on the frame and is used to drive the movable mold to close or open the fixed mold; An injection device, the injection device comprising an injection chamber, a driving block, a connecting rod, an elastic member, a follower, a cam and a servo motor, the injection chamber being arranged on the right side of the fixed mold, and the left side of the injection chamber being communicated with the injection hole, a through hole being arranged on the right side of the injection chamber, the driving block being arranged in the injection chamber, the connecting rod passing through the through hole, and one end of the connecting rod being connected to the driving block and the other end being connected to the follower, the elastic member being sleeved on the connecting rod, and the elastic member being located between the follower and the injection chamber, the servo motor being arranged on the frame, the cam being arranged on the rotating shaft of the servo motor, and the cam and the follower correspondingly cooperating to drive the driving block to slide in the injection chamber; A circulating cooling device, the circulating cooling device is connected to the mold, and the circulating cooling device is used to reduce the temperature of the mold; The control device further includes a die-casting control box, which is arranged on the frame, the movable mold is provided with a first intermittent water flow channel, a first point cooling pipe hole and a first normally flowing water flow channel, the fixed mold is provided with a second intermittent water flow channel, a second point cooling pipe hole and a second normally flowing water flow channel, the circulating cooling device includes a water supply main line, an air supply main line, a water return main line, a first intermittent water supply device, a first normally flowing water device, a first water return station, a second intermittent water supply device, a second normally flowing water device, a second water return station and a PLC control module, and the PLC control module is used to control the circulating cooling device to cool the mold; Wherein, the first intermittent water supply device comprises a first distribution box, a first diverter box and a first point cold head, the two inlet ends of the first distribution box are respectively connected to the water main line and the gas main line, the outlet end of the first distribution box is connected to the inlet end of the first diverter box, one outlet end of the first diverter box is connected to the inlet end of the first point cold head, the other outlet end of the first diverter box is connected to the inlet end of the first intermittent water flow channel, the outlet end of the first intermittent water flow channel is connected to the first water return station through a return pipe, the outlet end of the first point cold head is connected to the first water return station through a return pipe, the first point cold head extends into the first point cooling pipe hole, the inlet end of the first regular water device is connected to the water main line, the outlet end of the first regular water device is connected to the inlet end of the first regular water flow channel, the outlet end of the first regular water flow channel is connected to the first water return station through a return pipe, and the first water return station is connected to the water return main line; Wherein, the second intermittent water supply device comprises a second distribution box, a second diverter box and a second point cold head, the two inlet ends of the second distribution box are respectively connected to the water main line and the gas main line, the outlet end of the second distribution box is connected to the inlet end of the second diverter box, one outlet end of the second diverter box is connected to the inlet end of the second point cold head, the other outlet end of the second diverter box is connected to the inlet end of the second intermittent water flow channel, the outlet end of the second intermittent water flow channel is connected to the second water return station through a return pipe, the outlet end of the second point cold head is connected to the second water return station through a return pipe, the second point cold head extends into the second point cooling pipe hole, the inlet end of the second regular water device is connected to the water main line, the outlet end of the second regular water device is connected to the inlet end of the second regular water flow channel, the outlet end of the second regular water flow channel is connected to the second water return station through a return pipe, and the second water return station is connected to the water return main line; The mold clamping mechanism includes a telescopic driving member, a plurality of guide rails and a plurality of sliding members, the plurality of guide rails are transversely and evenly arranged on the frame, the plurality of sliding members are respectively arranged on the plurality of guide rails, the side edge of the movable mold is connected to the plurality of sliding members, the telescopic driving member is arranged on the frame, and the telescopic driving member is connected to the movable mold, and the telescopic driving member drives the movable mold to slide along the guide rails; The first constant water flow device and the second constant water flow device are both provided with a proportional regulating valve, and the proportional regulating valve is used to control the water flow rate. The first distribution box and the second distribution box are both provided with an electromagnetic valve, and the electromagnetic valve is used to control the water flow interruption.

2. According to claim 1, a temperature acquisition monitoring closed-loop control device is characterized in that: The telescopic driving member is a telescopic hydraulic cylinder.

3. A temperature acquisition monitoring closed-loop control device according to claim 2, characterized in that: The number of the plurality of guide rails and the number of the plurality of sliding members are both four, and the four guide rails are arranged in a rectangular array transversely on the frame, and the four sliding members are respectively arranged on the four guide rails in a one-to-one correspondence.

4. A temperature acquisition monitoring closed-loop control device according to claim 3, characterized in that: The mold is provided with a thermocouple, a first temperature sensor and a second temperature sensor, wherein the thermocouple is used to monitor the temperature change of the mold, the first temperature sensor is used to monitor the water inlet temperature of the mold, and the second temperature sensor is used to monitor the water outlet temperature of the mold.

5. A temperature acquisition monitoring closed-loop control device according to claim 4, characterized in that: The control device also includes a liquid adding device, which is arranged above the injection cavity and is used to add molten metal into the injection cavity.

6. A temperature acquisition monitoring closed-loop control device according to claim 5, characterized in that: The liquid adding device includes a liquid pot, a heating module and a thermal insulation layer. The liquid pot is arranged above the injection cavity, and the liquid pot is communicated with the injection cavity. The thermal insulation layer is evenly arranged on the outside of the liquid pot. The heating module is arranged on the outside of the liquid pot and is used to heat the molten metal in the liquid pot.

7. A temperature acquisition monitoring closed-loop control device according to claim 6, characterized in that: The cross section of the liquid pot is a V-shaped structure.

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