TW202106489A - Mold temperature control valve station - Google Patents

Abstract

A mold temperature control valve station system, which includes a heat source supply unit, a cold source supply unit, a control valve station, a mold, a sensing unit and a control unit, the heat and cold source supply units provide a fixed temperature and flow rate, through which the control valve station distributes several groups of paths to the mold for heating and cooling respectively, the sensing unit is disposed on the path of the control valve station, under the pressure and temperature of the heat source, the control valve station does not require a supercharging device or a heating device, the temperature of the mold is returned to the control unit through the temperature and pressure, so as to make the control unit control the opening of the control valve station through the signal, achieving the purpose of automatically cooling of the mold, while providing steady temperature.

Description

Mold temperature control valve station system

The present invention is related to a control valve station system, especially a mold temperature control valve station system.

As the precision requirements of plastic and rubber products become higher and higher, in order to make the plastic have better fluidity in the filling stage, the temperature of the mold is increased to meet the requirements of precision forming. Therefore, the high mold temperature forming process technology has become the key to the industry. One of the technologies.

The technical principle of high mold temperature forming process is to indirectly control the flow of melt in the mold through the change of mold temperature. The traditional high mold temperature forming process technology includes the use of electric heating, steam, hot oil and hot water to increase the mold temperature.

The traditional technology is that a heat source supply unit generates the same temperature and pressure conditions for multiple molds. As a result, the traditional technology can only meet the conditions of a single process, and cannot produce different temperature and different pressure conditions for each mold. As such, Not only will the production efficiency be low, but also the application will be restricted.

Therefore, how to solve the above-mentioned problems and deficiencies is the direction that the creators of the present invention and related industries engaged in this direction urgently want to study and improve.

The purpose of the present invention is to provide a mold temperature control valve station system, which mainly achieves the purpose of automatically raising and lowering the temperature of the mold, while providing a steady-state temperature.

Another object of the present invention is to provide a mold temperature control valve station system, which mainly allows different molds to set different production temperatures and pressures at the same time, so as to achieve the effect of energy saving.

The reason is that, in order to achieve the foregoing objective, a mold temperature control valve station system provided according to the present invention includes:

A heat source supply unit for outputting a heat source;

A cold source supply unit for outputting a cold source;

At least one control valve station, which connects the heat source supply unit and the cold source supply unit and serves as the heat source and the cold source passage, each of the control valve stations has a first flow proportional control valve for adjusting the flow of the heat source, and a regulating valve The second flow proportional control valve of the cold source flow, the first flow proportional control valve is used to receive the heat source and adjust the heat source to a specific heat source flow output, the second flow proportional control valve is used to receive the cold source, and Adjusting the flow output of the cold source at a specific cold source, and the specific heat source flow rate is mixed with the specific cold source flow rate to form a heating water;

At least one mold connects the heat source supply unit, the cold source supply unit and the at least one control valve station, and has a through mold runner for receiving the heated water and redirecting the heated water Returning to the heat source supply unit or the cold source supply unit, and the heating water flows through the mold to keep the mold at a steady-state temperature;

At least one sensing unit arranged on the at least one control valve station and connected to the at least one mold for sensing the mold or the temperature and pressure of the heated water entering and exiting the mold; and

A control unit is communicatively connected to the sensing unit and the at least one control valve station, for receiving the temperature and pressure sensed by the sensing unit, and then controlling the opening degree of the at least one control valve station.

Preferably, the heat source is hot water or steam.

Preferably, the at least one control valve station has a drain valve connected to the mold.

Preferably, the mold flow tool has an input end and an output end, a first branch pipe is connected to the output end and the heat source supply unit, and a second branch pipe is connected to the output end and the cold source supply unit, A first passage switch is arranged on the first branch pipe, a second passage switch is arranged on the second branch pipe, one end of a control valve is connected to the second passage switch, and the other end of the control valve is connected to an air pressure source.

Preferably, the mold temperature control valve station system has a heat exchange unit connected to the cold source supply unit and a chilled water supply unit connected to the heat exchange unit.

Preferably, the control unit is a digital or analog signal to achieve signal transmission.

Accordingly, the present invention provides a mold temperature control valve station system, which is mainly composed of the heat source supply unit, the cold source supply unit, the at least one control valve station, the at least one mold, the at least one sensing unit, and the control unit. It is characterized by providing fixed temperature and flow through the heat source supply unit and the cold source supply unit, and distributes multiple sets of passages through the control valve station to each of the molds for heating and cooling. The passage of the control valve station is provided With the sensing unit, the control valve station is under the fixed pressure and temperature of the heat source, without the need for booster and heating devices. The temperature of the mold is returned to the control unit through the temperature and pressure feedback value, and the control unit passes The signal controls the opening of the control valve station to achieve the purpose of automatically raising and lowering the temperature of the mold, while providing the steady state temperature. Each set of passages on the control valve station can be set to different production temperatures and pressures, and the heat source can be effectively distributed to achieve energy-saving effects. It also improves the problem of limited application to meet the needs of different applications of the mold.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following examples are given. And with the attached drawings, the detailed description is as follows.

The foregoing and other technical content, features, and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiment with reference to the drawings.

Referring to FIG. 1, the first embodiment of the present invention provides a mold temperature control valve station system, which is mainly composed of a heat source supply unit 20, a cold source supply unit 30, a control valve station 40, a mold 50, and a control unit Composed of 70, of which:

The heat source supply unit 20 is used to output a heat source; in this embodiment, the heat source is hot water as an example, but it is not limited to this, or steam.

The cold source supply unit 30 is used to output a cold source; in this embodiment, the cold source is cold water as an example, but it is not limited thereto.

The control valve station 40 connects the heat source supply unit and the cold source supply unit and is connected to the mold 50 as the heat source and the cold source channel, and has a first flow rate that connects the heat source supply unit 20 to adjust the heat source flow rate A proportional control valve 41 and a second flow proportional control valve 42 connected to the cold source supply unit 30 to adjust the flow of the cold source. The first flow proportional control valve 41 is used to receive the heat source and adjust the heat source to a specific heat source The second flow proportional control valve 42 is used to receive the cold source and adjust the flow output of the cold source to a specific cold source. The specific heat source flow and the specific cold source flow are mixed to form a heating water (indicated by the arrow Show); In this embodiment, there is also a drain valve 43 connected to the mold 50, the drain valve 43 is used to remove excess heated water from the mold.

The mold 50 connects the heat source supply unit 20, the cold source supply unit 30 and the control valve station 40, and has a through mold runner 51 for receiving the heated water and heating the The water is redirected back to the heat source supply unit 20 and the cold source supply unit 30, and the heated water flows through the mold 50 to keep the mold 50 at a steady-state temperature; in this embodiment, the mold runner 51 It has an input terminal 511 and an output terminal 512.

The sensing unit 60 is arranged on the control valve station 40 and connected to the mold 50 to sense the temperature and pressure of the mold 50 or the heated water entering and exiting the mold 50; in this embodiment, The sensing unit 60 measures the temperature and pressure of the heated water to generate temperature and pressure sensing signals.

The control unit 70 is communicatively connected to the sensing unit 60 and the control valve station 40 to receive the temperature and pressure sensed by the sensing unit 60, thereby controlling the opening of the control valve station 40; in this embodiment, The control unit 70 achieves signal transmission by digital or analog.

In addition, in this embodiment, a first branch pipe 80 is connected to the output end 512 and the heat source supply unit 20, a second branch pipe 90 is connected to the output end 512 and the cold source supply unit 30, a first A passage switch 44 is arranged on the first branch pipe 80, a second passage switch 45 is arranged on the second branch pipe 90, one end of a control valve 46 is connected to the second passage switch 45, and the other end of the control valve 46 An air pressure source 100 is connected. Therefore, when the heat source supply unit 20 and the cold source supply unit 30 are switched, the temperature and pressure can be fed back to the control unit 70 to control the heating water in the mold 50 to return to the The heat source supply unit 20 or the cold source supply unit 30 can achieve the purpose of effectively controlling energy usage.

In addition, in this embodiment, the mold temperature control valve station system has a heat exchange unit 110 connected to the cold source supply unit 30, and a chilled water supply unit 120 connected to the heat exchange unit 110. The chilled water supply unit 120 is used in the mold 50 for lower temperature cooling. In the high temperature season, the small chilled water host is used for cooling, and the cold water is heat exchanged to reduce the temperature of the cold source. There is no need to configure an independent large refrigerator to save power. purpose.

Referring to FIG. 2, the second embodiment of the present invention provides a mold temperature control valve station system. The difference from the first embodiment is that the control valve station 40, the sensing unit 60, and the mold 50 of this embodiment are different from the first embodiment. There are more than two, but it is not limited to this, and the same effect as the above-mentioned first embodiment can also be achieved. The hot water pressure of the left passage is 3kg/cm ² as an example, and the hot water pressure of the right passage is 6kg/cm ² as an example. Each group of passages on the control valve station 40 can be set to different production temperatures and pressures. The heat source can be effectively distributed to achieve the purpose of energy saving.

The above is the configuration description of the main components of the embodiment of the present invention. As for the use mode and effect of the present invention, the following description will be given.

Therefore, the present invention proposes a mold temperature control valve station system, which is characterized by providing a fixed temperature and flow rate through the heat source supply unit 20 and the cold source supply unit 30, and distributes multiple sets of passages to each mold through the control valve station 40 Heating and cooling are respectively provided at 50. The sensing unit 60 is provided on the passage of the control valve station 40. Under the fixed pressure and temperature of the heat source, the control valve station 40 does not require a pressurizing device and a heating device. The mold The temperature of 50 is returned to the control unit 70 through temperature and pressure feedback values. The control unit 70 controls the opening of the control valve station 40 through a signal to achieve the purpose of automatically raising and lowering the temperature of the mold 50, and at the same time providing the steady state temperature . Different production temperatures and pressures can be set for each set of passages on the control valve station 40. The heat source can be effectively distributed to achieve energy saving effects, and the problem of limited application can be improved to meet the requirements of different applications of the mold 50.

In summary, the above-mentioned embodiments and drawings are only preferred embodiments of the present invention. When they cannot be used to limit the scope of implementation of the present invention, all equivalent changes and modifications made in accordance with the scope of the patent application of the present invention shall belong to This invention patent covers the scope.

﹝this invention﹞ 20: Heat source supply unit 30: Cold source supply unit 40: Control valve station 41: The first flow proportional control valve 42: The second flow proportional control valve 43: Drain valve 44: The first channel switch 45: second channel switch 46: control valve 50: Mould 51: Mould runner 511: Input 512: output 60: Sensing unit 70: control unit 80: The first branch pipe 90: second branch pipe 100: Air pressure source 110: heat exchange unit 120: chilled water supply unit

Fig. 1 is a structural diagram of the first embodiment of the present invention. Fig. 2 is a structural diagram of a second embodiment of the present invention.

20: Heat source supply unit

30: Cold source supply unit

40: Control valve station

41: The first flow proportional control valve

42: The second flow proportional control valve

43: Drain valve

44: The first channel switch

45: second channel switch

46: control valve

50: Mould

51: Mould runner

511: Input

512: output

60: Sensing unit

70: control unit

80: The first branch pipe

90: second branch pipe

100: Air pressure source

110: heat exchange unit

120: chilled water supply unit

Claims (6)

A mold temperature control valve station system, including: A heat source supply unit for outputting a heat source; A cold source supply unit for outputting a cold source; At least one control valve station, which connects the heat source supply unit and the cold source supply unit and serves as the heat source and the cold source passage, each of the control valve stations has a first flow proportional control valve for adjusting the flow of the heat source, and a regulating valve The second flow proportional control valve of the cold source flow, the first flow proportional control valve is used to receive the heat source and adjust the heat source to a specific heat source flow output, the second flow proportional control valve is used to receive the cold source, and Adjusting the flow output of the cold source at a specific cold source, and the specific heat source flow rate is mixed with the specific cold source flow rate to form a heating water; At least one mold connects the heat source supply unit, the cold source supply unit and the at least one control valve station, and has a through mold runner for receiving the heated water and redirecting the heated water Returning to the heat source supply unit or the cold source supply unit, and the heating water flows through the mold to keep the mold at a steady-state temperature; At least one sensing unit arranged on the at least one control valve station and connected to the at least one mold for sensing the mold or the temperature and pressure of the heated water entering and exiting the mold; and A control unit is communicatively connected to the sensing unit and the at least one control valve station, for receiving the temperature and pressure sensed by the sensing unit, and then controlling the opening degree of the at least one control valve station. The mold temperature control valve station system according to claim 1, wherein the heat source is hot water or steam. The mold temperature control valve station system according to claim 1, wherein the at least one control valve station has a drain valve connected to the mold. The mold temperature control valve station system according to claim 1, wherein the mold flow tool has an input end and an output end, a first branch pipe is connected to the output end and the heat source supply unit, and a second branch pipe is connected to The output end and the cold source supply unit, a first path switch is set on the first branch pipe, a second path switch is set on the second branch pipe, one end of a control valve is connected to the second path switch, the control An air pressure source is connected to the other end of the valve. The mold temperature control valve station system according to claim 1, wherein the mold temperature control valve station system has a heat exchange unit connected to the cold source supply unit and a chilled water supply unit connected to the heat exchange unit. The mold temperature control valve station system according to claim 1, wherein the control unit is a digital or analog signal to achieve signal transmission.

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