CN114211713A - Water type mold temperature controller and water pressure control method thereof - Google Patents
Water type mold temperature controller and water pressure control method thereof Download PDFInfo
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- CN114211713A CN114211713A CN202111613489.6A CN202111613489A CN114211713A CN 114211713 A CN114211713 A CN 114211713A CN 202111613489 A CN202111613489 A CN 202111613489A CN 114211713 A CN114211713 A CN 114211713A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7306—Control circuits therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/82—Hydraulic or pneumatic circuits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C2045/7393—Heating or cooling of the mould alternately heating and cooling
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of water pressure control of a mold temperature controller, in particular to a water mold temperature controller and a water pressure control method thereof, which aim at solving the problems that the service life of parts of a unit, such as an electromagnetic valve, is influenced when the water inlet pressure of the existing water mold temperature controller is overlarge, the water inlet pressure of the mold temperature controller is too low, water is not sufficiently supplemented or water is not supplemented, the mold temperature controller is dried, a heating pipe is burnt out, the cooling speed is slow and the like, the water inlet quantity of cooling water cannot be controlled, and the cooling speed provided by the water mold temperature controller at different temperatures is constant; the water outlet of the cooling water inlet pipe group is connected with the water inlet of the pressure pump, and the water outlet of the pressure pump is connected with the heat medium return pipe; and the delivery port of the cooling water outlet pipe group is respectively connected with the heat medium return pipe and the heat medium outlet pipe, the pertinence control can be carried out on the cooling water pressure through the application, and the corresponding water inflow is adjusted according to the temperature difference.
Description
Technical Field
The invention relates to the technical field of water pressure control of a mold temperature controller, in particular to a water-type mold temperature controller and a water pressure control method thereof.
Background
The mould temperature controller is a mechanical device with heating and cooling functions, is used for industrial temperature control, most people know the heating function of the mould temperature controller, the temperature is raised in an electric heating mode, the temperature is controlled by a temperature controller, and the cooling function refers to the auxiliary temperature control by an external cooling source and the on-off of the mould temperature controller is controlled by a cooling electromagnetic valve! The method is widely applied to various industries such as plastic molding, light guide plate die casting, rubber tires, rollers, chemical reaction kettles, bonding, banburying and the like. In a broad aspect, the temperature control device comprises temperature control in both heating and cooling. The die temperature machine has the advantages of rapid heating and cooling time, stable temperature, long service life due to the adoption of stainless steel materials and imported high-grade components, perfect safety protection and fault indication system, and accurate and reliable temperature controller with touch mode internal storage and automatic calculation;
the mold temperature controller is widely applied to the plastic industry and mainly has the following functions:
1. the molding efficiency of the product is improved;
2. the generation of defective products is reduced;
3. the appearance of the product is improved, and the defects of the product are inhibited;
4. quickening the production progress, reducing the energy consumption and saving the energy.
The mold temperature controller can be divided into a water type mold temperature controller and an oil type mold temperature controller, the maximum working temperature of the standard water type mold temperature controller is 120 ℃, and the maximum working temperature of the high-temperature water type mold temperature controller is 180 ℃. The water type mold temperature machine has the advantages of fast heat transfer, cleanness and convenient taking and use, and generally adopts the design principle of direct heating and direct cooling;
the other is an oil type mold temperature controller, also called an oil temperature controller or an oil heater, the oil type mold temperature controller (oil temperature controller): the oil type mold temperature machine is divided into three grades: standard type, high temperature type and super high temperature type, the maximum working temperature is 180 ℃, 300 ℃ and 350 ℃ respectively.
The water-type mold temperature controller needs to be cooled by cooling water in the working process, but if the water inlet pressure is too large, the service life of parts of a unit, such as an electromagnetic valve, can be influenced, the water inlet pressure of the mold temperature controller is too low, water supplement is insufficient or cannot be carried out, the problems that the mold temperature controller is dry-burned, a heating pipe is burned out, the cooling speed is slow and the like can be caused, the water supply pressure is too high or too low, and the system operation is unfavorable, the water inlet quantity of the cooling water cannot be controlled by the existing water-type mold temperature controller, the corresponding cooling speed cannot be provided for the water-type mold temperature controller at different temperatures, and the water-type mold temperature controller and the water pressure control method thereof need to be provided for solving the problems.
Disclosure of Invention
To solve the above technical problems.
The application provides a water-type mold temperature controller, which comprises a body, wherein a circulating pump and a heating pipe are arranged inside the body, a water outlet of the circulating pump is connected with a water inlet of the heating pipe, a heat medium return pipe is arranged at a water inlet of the circulating pump, and a heat medium outlet pipe is arranged at a water outlet of the heating pipe; the cooling water inlet pipe group is used for controlling the water inflow of cooling water and is arranged in the body; the pressure pump is arranged in the body, the water outlet of the cooling water inlet pipe group is connected with the water inlet of the pressure pump, and the water outlet of the pressure pump is connected with the heat medium return pipe; and the cooling water outlet pipe group is arranged in the body, and the water outlet of the cooling water outlet pipe group is respectively connected with the heating medium return pipe and the heating medium outlet pipe.
Preferably, the cooling water inlet pipe group comprises a first water inlet branch pipe and a second water inlet branch pipe, and the first water inlet branch pipe and the second water inlet branch pipe are both arranged on the body; the water inlets of the first water inlet branch pipe and the second water inlet branch pipe are connected with the first connecting pipe; and the water outlet of the first connecting pipe is connected with the water pump, and the water outlet of the water pump is connected with the water inlet of the pressure pump.
Preferably, the first water inlet branch pipe and the second water inlet branch pipe have the same structure, the first water inlet branch pipe comprises a first water nozzle, and the first water inlet branch pipe is arranged on the body; one end of the filter is connected with the first water nozzle; the other end of the filter is connected with a water inlet of the first electromagnetic valve, and a water outlet of the first electromagnetic valve is connected with the first connecting pipe.
Preferably, the pressure pump further comprises a pressure switch, a water outlet of the pressure pump is connected with the heat medium return pipe through a tee joint, and an input end of the pressure switch is connected with the tee joint.
Preferably, the cooling water outlet pipe group comprises a three-way pipe, the three-way pipe is provided with two water outlets and a water inlet, one water outlet of the three-way pipe is connected with the heat medium return pipe, the other water outlet of the three-way pipe is provided with a second connecting pipe, and the second connecting pipe is connected with the heat medium outlet pipe; the second electromagnetic valve is arranged at the water inlet of the three-way pipe; one end of the third connecting pipe is connected with the second electromagnetic valve; and the second water nozzle is arranged on the body, and the other end of the third connecting pipe is connected with the second water nozzle.
Preferably, still include the cold water tank, the cold water tank sets up in the outside of body, and the water inlet of cooling income water nest of tubes and the delivery port of cooling play water nest of tubes are connected with the cold water tank.
Preferably, the cold water tank comprises a tank body, the tank body is arranged outside the body, a water filling port and a water discharging port are arranged on the one-way valve, a water inlet of the cooling water inlet pipe group and a water outlet of the cooling water outlet pipe group are connected with the tank body, the tank body is provided with the one-way valve, and the one-way valve is positioned at the connecting position of the cooling water outlet pipe group and the tank body; and the cover plate is provided with an opening used for the top of the box body.
Preferably, the cold water tank further comprises a condenser, and the condenser is arranged at the bottom of the tank body.
Preferably, the cold water tank further comprises a temperature control switch, and the temperature control switch is arranged inside the tank body.
The water pressure control method of the water type mold temperature controller comprises the following steps:
step one, opening all pipeline valves to be used, starting a circulating pump at the same time to drive the circulating pump to fill the whole circulating pipeline with water, and fully discharging air in the pipeline out of the system;
step two, opening all pipeline valves to be used, starting the circulating pump at the same time to drive the circulating pump to fill the whole circulating pipeline with water, and fully discharging air in the pipeline out of the system;
step three, when the temperature of the injection molding machine mold reaches the preset temperature of the body, the injection molding machine starts to produce, in order to ensure that the temperature of the circulating water is kept constant, an electric control system of the body calculates according to data fed back by a temperature sensor in a pipeline system, and whether the circulating hot water needs to be heated or cooled is judged;
step four, when the temperature in the body is too high, cooling water needs to be introduced for cooling, judgment is carried out according to the difference value between the existing temperature and the rated temperature, when the temperature difference is small, only the first water inlet branch pipe or the second water inlet branch pipe is opened to introduce the cooling water into the first connecting pipe, when the temperature difference is large, the first water inlet branch pipe and the second water inlet branch pipe are opened to introduce cold water into the first connecting pipe, the introduced cooling water is conveyed to a heat medium inlet return pipe through a water pump, and pressurization is carried out through a pressurization pump in the conveying process;
and fifthly, monitoring in real time through a pressure gauge in the working process of the body, opening a second electromagnetic valve when the internal pressure value of the body is too large, enabling water flow in the heat medium return pipe and the heat medium outlet pipe to be converged in the three-way pipe through a second connecting pipe and the second electromagnetic valve respectively, then passing through the second electromagnetic valve and a third connecting pipe, and finally flowing into a cold water tank through a second water nozzle.
Compared with the prior art, the invention has the beneficial effects that:
1. the cooling water inlet pipe group, the pressurizing pump and the cooling water outlet pipe group are arranged, so that the water pressure of cooling water can be controlled in a targeted manner, and the corresponding water inlet amount can be adjusted according to the temperature difference;
2. this application is gone into through the setting of first branch pipe of intaking, second branch pipe of intaking and first connecting pipe, can adjust the inflow of cooling water with the difference of rated temperature when overheated according to the body, accelerates the cooling through matching corresponding cooling water inflow.
Drawings
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a first perspective view of the internal structure of the present invention;
FIG. 4 is a front view of the internal structure of the present invention;
FIG. 5 is a schematic perspective view of a second internal control structure according to the present invention;
FIG. 6 is a rear view of the present invention;
fig. 7 is a perspective exploded view of the cold water tank of the present invention.
The reference numbers in the figures are:
1-body; 1 a-a circulation pump; 1a 1-heating medium return pipe; 1 b-a heating tube; 1b 1-heating medium outlet pipe;
2-cooling the water inlet pipe group; 2 a-a first water inlet branch pipe; 2a 1-first water nozzle; 2a 2-filter; 2a3 — first solenoid valve; 2 b-a second water inlet branch pipe; 2 c-a first connection pipe; 2 d-a water pump;
3-a pressure pump; 3 a-pressure switch;
4-cooling the water outlet pipe group; 4 a-a three-way pipe; 4 b-a second connecting tube; 4 c-a second solenoid valve; 4 d-third connecting tube; 4 e-a second water nozzle;
5-a cold water tank; 5 a-a box body; 5a 1-one-way valve; 5 b-a cover plate; 5 c-condenser.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
As shown in fig. 1, fig. 2 and fig. 3, the following preferred technical solutions are provided:
the water type mold temperature controller comprises a body 1, wherein a circulating pump 1a and a heating pipe 1b are arranged inside the body 1, a water outlet of the circulating pump 1a is connected with a water inlet of the heating pipe 1b, a heating medium return pipe 1a1 is arranged at the water inlet of the circulating pump 1a, and a heating medium outlet pipe 1b1 is arranged at the water outlet of the heating pipe 1 b; the cooling water inlet pipe group 2 is used for controlling the water inflow of cooling water, and the cooling water inlet pipe group 2 is arranged in the body 1; the booster pump 3 is arranged in the body 1, the water outlet of the cooling water inlet pipe group 2 is connected with the water inlet of the booster pump 3, and the water outlet of the booster pump 3 is connected with the heating medium return pipe 1a 1; and a cooling water outlet pipe group 4, wherein the cooling water outlet pipe group 4 is arranged inside the body 1, and the water outlet of the cooling water outlet pipe group 4 is respectively connected with the heating medium return pipe 1a1 and the heating medium outlet pipe 1b 1;
specifically, in order to solve the technical problem that the water type mold temperature controller needs to be cooled and controlled in the working state, firstly, a worker connects the body 1 with the injection molding machine, a heat medium outlet pipe 1b1 of the body 1 is connected with a heat medium inlet of the injection molding machine, a heat medium return pipe 1a1 of the body 1 is connected with a heat medium outlet of the injection molding machine, in addition, the body 1 also needs to be directly connected with a circulating water source through a pipeline, because no circulating water exists at the beginning in the system, when the body 1 is started, the temperature needs to be set to be 0 ℃, all pipeline valves to be used are opened, the circulating pump 1a is started at the same time to enable the circulating pump 1a to drive the water to fill the whole circulating pipeline, air in the pipeline is fully discharged out of the system, after the circulating water pump has a few minutes, a heating pipe 1b of the body 1 starts to be heated, a temperature sensor transmits the temperature change of the water in the pipeline to a controller and displays the temperature change, the temperature of the hot water in the mould is continuously increased by absorbing the heat of the pipeline, the hot water which finishes heat transfer returns to the body 1 system through the pipeline again for continuous circulation, when the temperature of the mould of the injection moulding machine reaches the preset temperature of the body 1, the injection moulding machine starts to produce, in order to ensure that the temperature of the circulating water is kept constant and cannot be higher than or lower than the temperature required by the injection moulding process, at the moment, an electric control system of the body 1 carries out calculation according to the data fed back by a temperature sensor in a pipeline system to judge whether the circulating hot water needs to be heated or cooled, when the temperature is overhigh, the cooling water is introduced through the cooling water inlet pipe group 2, the corresponding water pressure is matched according to the temperature condition of the body 1, the introduced cooling water enters the heat medium return pipe 1a1 after being pressurized by the pressurizing pump 3, and the water inlet quantity of the cooling water is adjusted through the cooling water inlet pipe group 2 according to the temperature condition, the water pressure when cooling water is injected is adjusted through the pressure pump 3, real-time monitoring is carried out through the pressure gauge in the working process of the body 1, and when the internal pressure value of the body 1 is overlarge, part of water is discharged through the cooling water outlet pipe group 4 to achieve the purpose of pressure relief.
As shown in fig. 4, the following preferred technical solutions are provided:
the cooling water inlet pipe group 2 comprises a first water inlet branch pipe 2a and a second water inlet branch pipe 2b, and the first water inlet branch pipe 2a and the second water inlet branch pipe 2b are both arranged on the body 1; the water inlets of the first water inlet branch pipe 2a and the second water inlet branch pipe 2b are connected with the first connecting pipe 2 c; the water outlet of the first connecting pipe 2c is connected with the water pump 2d, and the water outlet of the water pump 2d is connected with the water inlet of the pressure pump 3;
specifically, in order to solve the technical problem of controlling the water inflow of the cooling water, the cooling water needs to be introduced for cooling when the temperature in the body 1 is too high, the judgment is performed according to the difference between the existing temperature and the rated temperature, when the temperature difference is small, only the first water inlet branch pipe 2a or the second water inlet branch pipe 2b is opened to introduce the cooling water into the first connecting pipe 2c, when the temperature difference is large, the first water inlet branch pipe 2a and the second water inlet branch pipe 2b are opened to introduce the cold water into the first connecting pipe 2c, the introduced cooling water is conveyed to the heat medium inlet return pipe 1a1 through the water pump 2d, and the pressurization is performed by the pressurization pump 3 in the conveying process.
As shown in fig. 6, the following preferred technical solutions are provided:
the first water inlet branch pipe 2a and the second water inlet branch pipe 2b are consistent in structure, the first water inlet branch pipe 2a comprises a first water nozzle 2a1, and the first water inlet branch pipe 2a is arranged on the body 1; and a filter 2a2, one end of the filter 2a2 being connected to the first nozzle 2a 1; the other end of the filter 2a2 is connected with a water inlet of the first electromagnetic valve 2a3, and a water outlet of the first electromagnetic valve 2a3 is connected with the first connecting pipe 2 c;
specifically, in order to solve the technical problem of controlling the inflow amount of the cooling water, judgment is performed according to the difference between the existing temperature of the body 1 and the rated temperature, when the temperature difference is small, only the first electromagnetic valve 2a3 of the first water inlet branch pipe 2a or the second water inlet branch pipe 2b is opened, the cooling water passes through the first water nozzle 2a1, the filter 2a2 and the first electromagnetic valve 2a3 in sequence, the cooling water is introduced into the first connecting pipe 2c, the water pump 2d pumps the first connecting pipe 2c into the heat medium return pipe 1a1, and the pressure is applied by the pressure pump 3 in the conveying process.
As shown in fig. 4, the following preferred technical solutions are provided:
the pressure pump 3 also comprises a pressure switch 3a, the water outlet of the pressure pump 3 is connected with the heating medium return pipe 1a1 through a tee joint, and the input end of the pressure switch 3a is connected with the tee joint;
specifically, in order to solve the technical problem of the water pressure of the cooling water, the water pressure of the water pressurized by the pressure pump 3 is detected by the pressure switch 3a before the water is injected into the heat medium return pipe 1a1, so that the normal water pressure is ensured and the pressure pump 3 is known to be in normal operation.
As shown in fig. 4 and 5, the following preferred technical solutions are provided:
the cooling water outlet pipe group 4 comprises a three-way pipe 4a, the three-way pipe 4a is provided with two water outlets and a water inlet, one water outlet of the three-way pipe 4a is connected with the heating medium return pipe 1a1, the other water outlet of the three-way pipe 4a is provided with a second connecting pipe 4b, and the second connecting pipe 4b is connected with the heating medium outlet pipe 1b 1; the second electromagnetic valve 4c is arranged at the water inlet of the three-way pipe 4 a; one end of the third connecting pipe 4d is connected with the second electromagnetic valve 4 c; the second water nozzle 4e is arranged on the body 1, and the other end of the third connecting pipe 4d is connected with the second water nozzle 4 e;
specifically, in order to solve the technical problem that the internal pressure of the body 1 is too high, when the worker finds that the internal pressure of the body 1 is too high through the pressure gauge, the second electromagnetic valve 4c is opened, the water flow in the heat medium return pipe 1a1 and the heat medium outlet pipe 1b1 is gathered in the three-way pipe 4a through the second connecting pipe 4b and the second electromagnetic valve 4c respectively, then passes through the second electromagnetic valve 4c and the third connecting pipe 4d, and finally flows out through the second water nozzle 4 e.
As shown in fig. 6, the following preferred technical solutions are provided:
the water cooling device also comprises a cold water tank 5, wherein the cold water tank 5 is arranged outside the body 1, and a water inlet of the cooling water inlet pipe group 2 and a water outlet of the cooling water outlet pipe group 4 are connected with the cold water tank 5;
specifically, in order to solve the technical problem of recycling the cooling water, the cooling water is not always in a circulating state, so that the cooling water has time for automatically cooling, and the cooling water is recycled by arranging the cold water tank 5.
As shown in fig. 7, the following preferred technical solutions are provided:
the cold water tank 5 comprises a tank body 5a, the tank body 5a is arranged outside the body 1, a water filling port and a water discharging port are arranged on the one-way valve 5a1, a water inlet of the cooling water inlet pipe group 2 and a water outlet of the cooling water outlet pipe group 4 are connected with the tank body 5a, the tank body 5a is provided with a one-way valve 5a1, and the one-way valve 5a1 is positioned at the connection position of the cooling water outlet pipe group 4 and the tank body 5 a; and a cover plate 5b, the cover plate 5b being provided with an opening for the top of the case 5 a;
specifically, in order to solve the technical problem of cooling water storage, the cooling water is stored through the box body 5a, backflow of the cooling water outlet pipe group 4 after water outlet is avoided through the one-way valve 5a1, and the cover plate 5b is used for fixing and supporting.
As shown in fig. 7, the following preferred technical solutions are provided:
the cold water tank 5 also comprises a condenser 5c, and the condenser 5c is arranged at the bottom of the tank body 5 a;
specifically, in order to solve the technical problem of accelerating the cooling of the cooling water, when the tank 5a is too small or the frequency of the cooling water is high, the speed of natural cooling is insufficient, and the temperature of the cooling water is maintained by the condenser 5 c.
As shown in fig. 7, the following preferred technical solutions are provided:
the cold water tank 5 also comprises a temperature control switch which is arranged inside the tank body 5 a;
specifically, in order to solve the technical problem of reducing the temperature of the cooling water, in order to avoid that the condenser 5c is always in a working state, the temperature inside the box body 5a is monitored in real time by arranging the temperature control switch, and the condenser 5c is turned on to work when the temperature of the cooling water is overheated.
The water pressure control method of the water type mold temperature controller comprises the following steps:
step one, opening all pipeline valves to be used, starting a circulating pump 1a at the same time to enable the circulating pump 1a to drive the circulating pump 1a to fill the whole circulating pipeline with water, and fully discharging air in the pipeline out of the system;
step two, opening all pipeline valves to be used, simultaneously starting the circulating pump 1a to enable the circulating pump 1a to drive the circulating pump 1a to fill the whole circulating pipeline with water, and fully discharging air in the pipeline out of the system;
step three, when the temperature of the injection molding machine die reaches the preset temperature of the body 1, the injection molding machine starts to produce, and in order to ensure that the temperature of circulating water is kept constant, an electric control system of the body 1 calculates according to data fed back by a temperature sensor in a pipeline system, and judges whether the circulating hot water needs to be heated or cooled;
step four, when the temperature in the body 1 is too high, cooling water needs to be introduced for cooling, judgment is carried out according to the difference value between the existing temperature and the rated temperature, when the temperature difference is small, only the first water inlet branch pipe 2a or the second water inlet branch pipe 2b is opened to introduce the cooling water into the first connecting pipe 2c, when the temperature difference is large, the first water inlet branch pipe 2a and the second water inlet branch pipe 2b are opened to introduce cold water into the first connecting pipe 2c, the introduced cooling water is conveyed to the heat medium inlet return pipe 1a1 through the water pump 2d, and pressurization is carried out through the pressurization pump 3 in the conveying process;
and step five, monitoring in real time through a pressure gauge in the working process of the body 1, opening the second electromagnetic valve 4c when the internal pressure value of the body 1 is overlarge, and collecting the water flow in the heat medium return pipe 1a1 and the heat medium outlet pipe 1b1 in the three-way pipe 4a through the second connecting pipe 4b and the second electromagnetic valve 4c respectively, then passing through the second electromagnetic valve 4c and the third connecting pipe 4d, and finally flowing into the cold water tank 5 through the second water nozzle 4 e.
This application is gone into the setting of water nest of tubes 2, force (forcing) pump 3 and cooling water nest of tubes 4 through body 1, cooling, can carry out the pertinence control to cooling water pressure, also can be according to body 1 when overheated with the inflow of rated temperature's difference regulation cooling water, accelerate the cooling through matching corresponding cooling water inflow.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The water type mold temperature controller comprises a body (1), wherein a circulating pump (1a) and a heating pipe (1b) are arranged inside the body (1), a water outlet of the circulating pump (1a) is connected with a water inlet of the heating pipe (1b), a heating medium return pipe (1a1) is arranged at the water inlet of the circulating pump (1a), and a heating medium outlet pipe (1b1) is arranged at the water outlet of the heating pipe (1 b); and
the device is characterized by comprising a cooling water inlet pipe group (2) for controlling the water inflow of cooling water, wherein the cooling water inlet pipe group (2) is arranged inside a body (1); and
the pressure pump (3), the pressure pump (3) is arranged in the body (1), the water outlet of the cooling water inlet pipe group (2) is connected with the water inlet of the pressure pump (3), and the water outlet of the pressure pump (3) is connected with the heating medium return pipe (1a 1); and
the cooling water outlet pipe group (4) is arranged in the body (1), and a water outlet of the cooling water outlet pipe group (4) is respectively connected with the heating medium return pipe (1a1) and the heating medium outlet pipe (1b 1).
2. A water type mold temperature controller according to claim 1, wherein the cooling water inlet pipe group (2) comprises a first water inlet branch pipe (2a) and a second water inlet branch pipe (2b), and the first water inlet branch pipe (2a) and the second water inlet branch pipe (2b) are both arranged on the body (1); and
the water inlets of the first water inlet branch pipe (2a) and the second water inlet branch pipe (2b) are connected with the first connecting pipe (2 c); and
the water outlet of the first connecting pipe (2c) is connected with the water pump (2d), and the water outlet of the water pump (2d) is connected with the water inlet of the pressure pump (3).
3. The water type mold temperature controller according to claim 2, wherein the first water inlet branch pipe (2a) and the second water inlet branch pipe (2b) have the same structure, the first water inlet branch pipe (2a) comprises a first water nozzle (2a1), and the first water inlet branch pipe (2a) is arranged on the body (1); and
a filter (2a2), one end of the filter (2a2) is connected with the first water nozzle (2a 1); and
the other end of the filter (2a2) is connected with a water inlet of the first electromagnetic valve (2a3), and a water outlet of the first electromagnetic valve (2a3) is connected with the first connecting pipe (2 c).
4. The water type mold temperature controller according to claim 1, wherein the pressure pump (3) further comprises a pressure switch (3a), the water outlet of the pressure pump (3) is connected with the heating medium return pipe (1a1) through a tee joint, and the input end of the pressure switch (3a) is connected with the tee joint.
5. The water type mold temperature controller according to claim 1, wherein the cooling water outlet pipe group (4) comprises a three-way pipe (4a), the three-way pipe (4a) has two water outlets and a water inlet, one water outlet of the three-way pipe (4a) is connected with the heating medium return pipe (1a1), the other water outlet of the three-way pipe (4a) is provided with a second connecting pipe (4b), and the second connecting pipe (4b) is connected with the heating medium outlet pipe (1b 1); and
the second electromagnetic valve (4c), the second electromagnetic valve (4c) is arranged at the water inlet of the three-way pipe (4 a); and
one end of the third connecting pipe (4d) is connected with the second electromagnetic valve (4 c); and
the second water nozzle (4e), the second water nozzle (4e) is arranged on the body (1), and the other end of the third connecting pipe (4d) is connected with the second water nozzle (4 e).
6. The water type mold temperature controller according to claim 1, further comprising a cold water tank (5), wherein the cold water tank (5) is arranged outside the body (1), and a water inlet of the cooling water inlet pipe group (2) and a water outlet of the cooling water outlet pipe group (4) are connected with the cold water tank (5).
7. The water type mold temperature controller according to claim 6, wherein the cold water tank (5) comprises a tank body (5a), the tank body (5a) is arranged outside the body (1), the check valve (5a1) is provided with a water filling port and a water discharging port, the water inlet of the cooling water inlet pipe group (2) and the water outlet of the cooling water outlet pipe group (4) are connected with the tank body (5a), the tank body (5a) is provided with a check valve (5a1), and the check valve (5a1) is arranged at the connection position of the cooling water outlet pipe group (4) and the tank body (5 a); and
a cover plate (5b), the cover plate (5b) being provided with an opening for the top of the tank (5 a).
8. The water type mold temperature controller according to claim 7, wherein the cold water tank (5) further comprises a condenser (5c), and the condenser (5c) is arranged at the bottom of the tank body (5 a).
9. The water type mold temperature controller according to claim 8, wherein the cold water tank (5) further comprises a temperature control switch, and the temperature control switch is arranged inside the tank body (5 a).
10. The water pressure control method of the water type mold temperature controller is characterized by comprising the following steps:
step one, opening all pipeline valves to be used, starting a circulating pump (1a) at the same time to enable the circulating pump (1a) to drive the circulating pump to fill the whole circulating pipeline with water, and fully discharging air in the pipeline out of the system;
step two, opening all pipeline valves to be used, simultaneously starting the circulating pump (1a) to enable the circulating pump (1a) to drive the circulating pump to fill the whole circulating pipeline with water, and fully discharging air in the pipeline out of the system;
step three, when the temperature of the injection molding machine die reaches the preset temperature of the body (1), the injection molding machine starts to produce, and in order to ensure that the temperature of circulating water is kept constant, an electric control system of the body (1) calculates according to data fed back by a temperature sensor in a pipeline system, and judges whether the circulating hot water needs to be heated or cooled;
step four, when the temperature in the body (1) is too high, cooling water needs to be introduced for cooling, judgment is carried out according to the difference value between the existing temperature and the rated temperature, when the temperature difference is small, only the first water inlet branch pipe (2a) or the second water inlet branch pipe (2b) is opened to introduce the cooling water into the first connecting pipe (2c), when the temperature difference is large, the first water inlet branch pipe (2a) and the second water inlet branch pipe (2b) are opened to introduce cold water into the first connecting pipe (2c), the introduced cooling water is conveyed to the heat medium inlet return pipe (1a1) through the water pump (2d), and pressurization is carried out through the pressurization pump (3) in the conveying process;
step five, real-time monitoring is carried out through a pressure gauge in the working process of the body (1), when the internal pressure value of the body (1) is overlarge, a second electromagnetic valve (4c) is opened, water flow in a heat medium return pipe (1a1) and a heat medium outlet pipe (1b1) can be converged in a three-way pipe (4a) through a second connecting pipe (4b) and the second electromagnetic valve (4c) respectively, then passes through the second electromagnetic valve (4c) and a third connecting pipe (4d), and finally flows into a cold water tank (5) through a second water nozzle (4 e).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111613489.6A CN114211713A (en) | 2021-12-27 | 2021-12-27 | Water type mold temperature controller and water pressure control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111613489.6A CN114211713A (en) | 2021-12-27 | 2021-12-27 | Water type mold temperature controller and water pressure control method thereof |
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