Mold temperature controller system capable of independently controlling temperature and flow of pipelines

Abstract

The invention discloses a mold temperature controller system capable of independently controlling the temperature and flow of each pipeline, the mold temperature controller system comprises a high-temperature water tank, a low-temperature water tank, a water outlet flow mixing assembly, a water return flow dividing assembly and a die-casting mold, the water outlet flow mixing assembly comprises a high-temperature flow dividing block, a low-temperature flow dividing block and a plurality of proportional valves, and the water return flow dividing assembly comprises two confluence blocks and a plurality of flow dividing valves. By controlling the flow and the mixed flow proportion of high-temperature water and low-temperature water, independent and real-time control of the temperature and the flow of each water outlet pipeline can be achieved, the temperature rising and cooling rate of the die-casting die is controllable, the temperature of a die-casting die area is adjusted to a designated range more accurately and more reasonably at designated time, and the production yield is increased; the water levels of the high-temperature water tank and the low-temperature water tank are kept relatively constant by controlling the water return proportion of the high-temperature water tank and the low-temperature water tank, and the water temperature adjustment energy consumption is reduced to the maximum extent.

Description

Technical Field

[0001] This invention relates to the field of mold temperature controller technology, specifically a mold temperature controller system that can independently control the temperature and flow rate of each pipeline. Background Technology

[0002] In existing mold temperature controllers, each water tank typically supplies water to one or more pipelines. The water supply temperature depends on the water temperature in the tank, making it impossible to output water of multiple different temperatures simultaneously. Furthermore, the water supply can only be controlled by valves, and the water flow rate in the pipelines cannot be dynamically adjusted in real time. This control method cannot meet the requirements for precise temperature control of molds. On the other hand, simply controlling the water flow will cause thermal shock to the mold, shortening its lifespan. Summary of the Invention

[0003] In view of the above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a mold temperature controller system that can independently control the temperature and flow rate of each pipeline.

[0004] The technical solution of this invention is: a mold temperature control system capable of independently controlling the temperature and flow rate of each pipeline, comprising a high-temperature water tank, a low-temperature water tank, an outlet water mixing assembly, a return water distribution assembly, and a die-casting mold. The high-temperature water tank is connected to a first heat exchange assembly, and the low-temperature water tank is connected to a second heat exchange assembly. The outlet water mixing assembly includes a high-temperature distribution block, a low-temperature distribution block, and multiple proportional valves. The inlet of the high-temperature distribution block is connected to the outlet of the high-temperature water tank, and the inlet of the low-temperature distribution block is connected to the outlet of the low-temperature water tank. The outlet of the high-temperature distribution block has multiple high-temperature branches, and the outlet of the low-temperature distribution block has multiple low-temperature branches. Each high-temperature branch and low-temperature branch is connected to the inlet of a proportional valve. Water from one high-temperature branch and one low-temperature branch flows out from the corresponding proportional valve and converges to connect to the inlet of the die-casting mold. The return water diversion assembly includes two confluence blocks and multiple diversion valves. The outlet of the die-casting mold has multiple outlet branches, each of which is connected to the inlet of a diversion valve. The outlet of each diversion valve has two return water branches, which are respectively connected to the inlet of one of the confluence blocks. The outlets of the two confluence blocks are respectively connected to the inlet of the high-temperature water tank and the inlet of the low-temperature water tank.

[0005] Furthermore, a first pressure conveying device and a pressure sensor are installed between the outlet of the high-temperature water tank and the inlet of the high-temperature diversion block, and a second pressure conveying device and a pressure sensor are installed between the outlet of the low-temperature water tank and the inlet of the low-temperature diversion block.

[0006] Furthermore, a temperature sensor and a flow sensor are installed between the water inlet of the die-casting mold and the water outlet of the proportional valve.

[0007] Furthermore, a temperature sensor is installed at the inlet of the diversion valve.

[0008] Furthermore, the system also includes a controller that controls the temperature and flow rate of the pipeline. Based on the temperature and flow rate required by the die-casting mold, and combined with the water temperature in the high-temperature water tank and the low-temperature water tank, the controller determines the mixing ratio of high-temperature water and low-temperature water, controls the opening of the proportional valves on the high-temperature branch and the low-temperature branch, and then corrects the opening of the proportional valves based on the data detected by the temperature sensor and flow sensor between the die-casting mold inlet and the proportional valve outlet, to ensure that the outlet water temperature and flow rate are within a reasonable range.

[0009] Furthermore, based on the water temperature at the outlet of the die-casting mold and the current liquid levels and temperatures of the high-temperature and low-temperature water tanks, the controller adjusts the diversion ratio to direct the water to the tank with the closest temperature, provided that the liquid levels in the high-temperature and low-temperature water tanks do not exceed the limits.

[0010] The advantages of using the mold temperature controller system provided by this invention, which can independently control the temperature and flow rate of each pipeline, are as follows:

[0011] By controlling the flow rate and mixing ratio of high-temperature water and low-temperature water, the temperature and flow rate of each water outlet can be independently and in real time controlled. The heating and cooling rates of the die-casting mold can be controlled, and the temperature of the die-casting mold area can be adjusted to the specified range at a specified time more accurately and reasonably, thereby improving the production yield.

[0012] By controlling the return water ratio to the high-temperature water tank and the low-temperature water tank, the water levels in the high-temperature water tank and the low-temperature water tank are kept relatively constant, and the energy consumption for water temperature regulation is reduced to the minimum. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0014] In the diagram: 1—High-temperature water tank, 2—Low-temperature water tank, 3—Die-casting mold, 4—High-temperature diverter block, 5—Low-temperature diverter block, 6—Proportional valve, 7—High-temperature branch, 8—Low-temperature branch, 9—Merging block, 10—Diverter valve, 11—Outlet branch, 12—Return branch, 13—First pressure conveying device, 14—Second pressure conveying device, 15—First heat exchanger, 16—Third pressure conveying device, 17—Second heat exchanger, 18—Fourth pressure conveying device, 19—Heating tube. Detailed Implementation

[0015] To provide a more intuitive and complete understanding of the technical solution of this invention, the following non-limiting features are described in conjunction with the accompanying drawings:

[0016] like Figure 1As shown, a mold temperature controller system capable of independently controlling the temperature and flow rate of each pipeline includes a high-temperature water tank 1, a low-temperature water tank 2, an outlet water mixing assembly, a return water distribution assembly, and a die-casting mold 3. The high-temperature water tank 1 is connected to a first heat exchange assembly, and the low-temperature water tank 2 is connected to a second heat exchange assembly. The outlet water mixing assembly includes a high-temperature distribution block 4, a low-temperature distribution block 5, and multiple proportional valves 6. The inlet of the high-temperature distribution block 4 is connected to the outlet of the high-temperature water tank 1, and the inlet of the low-temperature distribution block 5 is connected to the outlet of the low-temperature water tank 2. The outlet of the high-temperature distribution block 4 has multiple high-temperature branches 7, and the outlet of the low-temperature distribution block 5 has multiple low-temperature branches 8. Each high-temperature branch... 7. The low-temperature branch 8 is connected to the inlet of a proportional valve 6. Water from a high-temperature branch 7 and a low-temperature branch 8 flows out from the corresponding proportional valve 6 and converges to connect to the inlet of the die-casting mold 3. The return water diversion assembly includes two confluence blocks 9 and multiple diversion valves 10. The outlet of the die-casting mold 3 has multiple outlet branches 11. Each outlet branch 11 is connected to the inlet of a diversion valve 10. Each diversion valve 10 outlet has two return water branches 12. The two return water branches 12 are respectively connected to the inlet of one of the confluence blocks 9. The outlets of the two confluence blocks 9 are respectively connected to the inlet of the high-temperature water tank 1 and the inlet of the low-temperature water tank 2.

[0017] The water from a high-temperature branch 7 and a low-temperature branch 8 flows out from the corresponding proportional valve 6 and converges to connect to the inlet of the die-casting mold 3. Specifically, the number of high-temperature branches 7 and low-temperature branches 8 is equal, and the water from any high-temperature branch 7 and any low-temperature branch 8 flows out from the corresponding proportional valve 6 and converges to connect to the inlet of the die-casting mold 3.

[0018] A first pressure conveying device 13 and a pressure sensor are installed between the outlet of the high-temperature water tank 1 and the inlet of the high-temperature diversion block 4, and a second pressure conveying device 14 and a pressure sensor are installed between the outlet of the low-temperature water tank 2 and the inlet of the low-temperature diversion block 5.

[0019] A temperature sensor and a flow sensor are installed between the water inlet of the die-casting mold 3 and the water outlet of the proportional valve 6 to detect the flow rate and temperature.

[0020] A temperature sensor is installed at the inlet of the diversion valve 10 to detect the return water temperature.

[0021] The first heat exchange assembly includes a first heat exchanger 15 and a third pressure conveying device 16. The outlet of the high-temperature water tank 1 is connected to the inlet of the third pressure conveying device 16, the outlet of the third pressure conveying device 16 is connected to the inlet of the first heat exchanger 15, and the outlet of the first heat exchanger 15 is connected to the inlet of the high-temperature water tank 1. The second heat exchange assembly includes a second heat exchanger 17 and a fourth pressure conveying device 18. The outlet of the low-temperature water tank 2 is connected to the inlet of the fourth pressure conveying device 18, the outlet of the fourth pressure conveying device 18 is connected to the inlet of the second heat exchanger 17, and the outlet of the second heat exchanger 17 is connected to the inlet of the low-temperature water tank 2. The first heat exchanger 15 and the second heat exchanger 17 serve a cooling function.

[0022] Both the high-temperature water tank 1 and the low-temperature water tank 2 are equipped with level sensors, temperature sensors, and pressure sensors. Both the high-temperature water tank 1 and the low-temperature water tank 2 have external water inlets, allowing for water replenishment when the water level is insufficient.

[0023] Both the high-temperature water tank 1 and the low-temperature water tank 2 are equipped with heating tubes 19 for heating.

[0024] The first pressure conveying device 13, the second pressure conveying device 14, the third pressure conveying device 16, and the fourth pressure conveying device 18 are all pumps.

[0025] The system also includes a controller (not shown in the figure), which controls the water temperature, pressure, and liquid level of the high-temperature water tank 1 and the low-temperature water tank 2 to maintain them at set values. The controller combines data from temperature, pressure, and liquid level sensors to control components such as the heating tube 19, the first heat exchanger 15, and the second heat exchanger 17.

[0026] The controller controls the temperature and flow rate of the pipeline. Based on the required temperature and flow rate of the die-casting mold 3, and combined with the water temperatures in the high-temperature water tank 1 and the low-temperature water tank 2, it determines the mixing ratio of high-temperature water and low-temperature water, controls the opening of the proportional valve 6 on the high-temperature branch 7 and the low-temperature branch 8, and then corrects the opening of the proportional valve 6 by using the data detected by the temperature sensor and flow sensor between the water inlet of the die-casting mold 3 and the water outlet of the proportional valve 6, to ensure that the outlet water temperature and flow rate are within a reasonable range.

[0027] The controller adjusts the flow ratio based on the water temperature at the outlet of the die-casting mold 3 and the current liquid levels and temperatures of the high-temperature water tank 1 and the low-temperature water tank 2, ensuring that the liquid levels of the high-temperature water tank 1 and the low-temperature water tank 2 do not exceed the limit, so that the water flows to the tank with the closer temperature.

[0028] This invention enables independent and real-time control of the temperature and flow rate of each water outlet pipe by controlling the flow rate and mixing ratio of high-temperature water and low-temperature water. The heating and cooling rates of the die-casting mold 3 are controllable, allowing the temperature of the die-casting mold 3 area to be adjusted to a specified range more accurately and reasonably at a specified time, thereby improving production yield.

[0029] This invention maintains a relatively constant water level in high-temperature water tank 1 and low-temperature water tank 2 by controlling the return water ratio to high-temperature water tank 1 and low-temperature water tank 2, and minimizes the energy consumption for water temperature regulation.

[0030] Of course, the above are only preferred embodiments of the present invention and do not limit the scope of the patent of the present invention. For example, the heat transfer medium can be water, oil or other substances; for example, the proportional valve 6 can be a flow proportional valve or an electrically controlled three-way valve or other control element; for example, the diverter valve 10 can be an electrically controlled diverter valve or an electrically controlled three-way valve or other control element. All simple modifications and equivalent structural changes made based on the description and drawings of the present invention should also be included within the scope of patent protection of the present invention.

Claims

1. A mold temperature control system capable of independently controlling the temperature and flow rate of each pipeline, characterized in that: The system includes a high-temperature water tank, a low-temperature water tank, an outlet mixing assembly, a return water distribution assembly, and a die-casting mold. The high-temperature water tank is connected to a first heat exchange assembly, and the low-temperature water tank is connected to a second heat exchange assembly. The outlet mixing assembly includes a high-temperature distribution block, a low-temperature distribution block, and multiple proportional valves. The inlet of the high-temperature distribution block is connected to the outlet of the high-temperature water tank, and the inlet of the low-temperature distribution block is connected to the outlet of the low-temperature water tank. The outlet of the high-temperature distribution block has multiple high-temperature branches, and the outlet of the low-temperature distribution block has multiple low-temperature branches. Each high-temperature branch and each low-temperature branch is connected to a... The water inlet of the proportional valve, the water from one high-temperature branch and one low-temperature branch flows out from the corresponding proportional valve and converges and connects to the water inlet of the die-casting mold. The return water diversion assembly includes two confluence blocks and multiple diversion valves. The water outlet of the die-casting mold has multiple water outlet branches, each of which is connected to the water inlet of a diversion valve. Each diversion valve outlet has two return water branches, each of which is connected to the water inlet of one of the confluence blocks. The water outlets of the two confluence blocks are connected to the water inlet of the high-temperature water tank and the water inlet of the low-temperature water tank, respectively.

2. The mold temperature control system according to claim 1, which can independently control the temperature and flow rate of each pipeline, is characterized in that: A first pressure conveying device and a pressure sensor are installed between the outlet of the high-temperature water tank and the inlet of the high-temperature diversion block, and a second pressure conveying device and a pressure sensor are installed between the outlet of the low-temperature water tank and the inlet of the low-temperature diversion block.

3. A mold temperature controller system capable of independently controlling the temperature and flow rate of each pipeline according to claim 2, characterized in that: A temperature sensor and a flow sensor are installed between the water inlet of the die-casting mold and the water outlet of the proportional valve.

4. A mold temperature controller system capable of independently controlling the temperature and flow rate of each pipeline according to claim 3, characterized in that: A temperature sensor is installed at the inlet of the diversion valve.

5. A mold temperature controller system capable of independently controlling the temperature and flow rate of each pipeline according to claim 4, characterized in that: The system also includes a controller, which controls the temperature and flow rate of the pipeline. Based on the temperature and flow rate required by the die-casting mold, and combined with the water temperature in the high-temperature water tank and the low-temperature water tank, the controller determines the mixing ratio of high-temperature water and low-temperature water, controls the opening of the proportional valves on the high-temperature branch and the low-temperature branch, and then corrects the opening of the proportional valves based on the data detected by the temperature sensor and flow sensor between the die-casting mold inlet and the proportional valve outlet, to ensure that the outlet water temperature and flow rate are within a reasonable range.

6. A mold temperature controller system capable of independently controlling the temperature and flow rate of each pipeline according to claim 5, characterized in that: The controller adjusts the flow ratio based on the water temperature at the outlet of the die-casting mold and the current liquid level and temperature of the high-temperature water tank and the low-temperature water tank, ensuring that the liquid levels in the high-temperature water tank and the low-temperature water tank do not exceed the limit, so that the water flows to the water tank with the closer temperature.

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