CN216068545U - Digital closed-loop cooling system of injection mold - Google Patents
Digital closed-loop cooling system of injection mold Download PDFInfo
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- CN216068545U CN216068545U CN202120892855.5U CN202120892855U CN216068545U CN 216068545 U CN216068545 U CN 216068545U CN 202120892855 U CN202120892855 U CN 202120892855U CN 216068545 U CN216068545 U CN 216068545U
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Abstract
The utility model discloses a digital closed-loop cooling system of an injection mold, which comprises a controller, a mold temperature controller and a control unit, wherein the mold temperature controller is used for supplying cooling water to the mold, the control unit comprises an electromagnetic proportional valve, a water inlet monitoring device and a water return monitoring device, the electromagnetic proportional valve is arranged on a water inlet pipeline of the mold, the electromagnetic proportional valve is electrically connected with the controller, the water inlet monitoring device is arranged on a water inlet pipeline of the mold, the water inlet monitoring device is connected in series with a water outlet end of the electromagnetic proportional valve, the water inlet monitoring device is electrically connected with the controller, the water inlet monitoring device is used for detecting flow parameters, temperature parameters and pressure parameters of the cooling water in the water inlet pipeline, the water return monitoring device is arranged on a water return pipeline of the mold, and the water return monitoring device is electrically connected with the controller. The utility model can accurately control the local cold and hot balance of the die, actively control the local temperature of the die, improve the product quality, reduce the rejection rate and facilitate further shortening the production takt.
Description
Technical Field
The utility model relates to the technical field of cooling of injection molds, in particular to a digital closed-loop cooling system for an injection mold.
Background
In recent years, the framework of the automobile softening instrument panel is mostly made of glass fiber reinforced polypropylene materials, and in the area of the safety airbag, the sheet metal part support or the substitute thereof, such as fabric, special-shaped nuts for mounting the airbag and the like, is produced by an embedding and injection molding integrated mode with the assistance of a multi-rib reinforcing frame structure. While the conventional multi-step process is simplified by integration, the local temperature of the area of the mold cannot be accurately controlled only by a conventional cooling method because the mold structure is too complex. Taking injection molding production of an instrument panel framework with an air bag as an example, only by a conventional cooling method, cold and heat balance of an air bag area of a mold cannot be accurately controlled, so that abnormality such as cold spots, heat erosion, even holes and the like often occurs in the area of a product, air bag blasting failure is caused, the rejection rate is increased, and the production cycle cannot be further shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a digital closed-loop cooling system for an injection mold, which is designed aiming at the digital closed-loop cooling system for the injection mold, can accurately control the local cold and heat balance of the mold, actively control the local temperature of the mold, improve the product quality, reduce the rejection rate and facilitate further shortening the production takt.
The embodiment of the utility model is realized by the following technical scheme:
the utility model provides a digital closed-loop cooling system of injection mold, including controller and the mould temperature machine that is used for supplying the cooling water to the mould, still include the control unit, this control unit includes electromagnetic proportional valve, monitoring devices and return water monitoring devices of intaking, this electromagnetic proportional valve locates the inlet channel of this mould, this electromagnetic proportional valve is connected with this controller electricity, this monitoring devices of intaking disposes in the inlet channel of this mould, this monitoring devices of intaking establishes ties and locates the play water end of this electromagnetic proportional valve, this monitoring devices of intaking is connected with this controller electricity, this monitoring devices of intaking is arranged in detecting the flow parameter, temperature parameter and the pressure parameter of cooling water in this inlet channel. The backwater monitoring device is configured on the backwater pipeline of the mold, electrically connected with the controller and used for detecting the flow parameter, the temperature parameter and the pressure parameter of the cooling water in the backwater pipeline.
In an embodiment of the present invention, the electromagnetic proportional valve further includes a first normally closed stop valve, the first normally closed stop valve is disposed in the water inlet pipeline, and the first normally closed stop valve is connected in parallel with the electromagnetic proportional valve.
In an embodiment of the present invention, the water inlet monitoring device includes a water inlet flow sensor, a water inlet temperature sensor, and a water inlet pressure sensor, which are connected in series in sequence along a water inlet direction.
In an embodiment of the utility model, the backwater monitoring device includes a backwater flow sensor, a backwater temperature sensor and a backwater pressure sensor which are connected in series in sequence.
In an embodiment of the present invention, the mold temperature controller further includes a second normally closed stop valve, the second normally closed stop valve is disposed between the mold temperature controller and the control unit, one end of the second normally closed stop valve is communicated with the water outlet end of the mold temperature controller, and the other end of the second normally closed stop valve is communicated with the water return end of the mold temperature controller.
In an embodiment of the present invention, the mold further includes a third normally closed stop valve, the third normally closed stop valve is disposed between the control unit and the mold, one end of the third normally closed stop valve is communicated with the water inlet end of the mold, and the other end of the third normally closed stop valve is communicated with the water return end of the mold.
In an embodiment of the present invention, the mobile terminal further includes a touch screen electrically connected to the controller.
The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects:
the embodiment of the utility model adopts a cooling system provided with a mold temperature controller, a controller and a control unit, wherein the mold temperature controller is used as a water supply source, the control unit comprises an electromagnetic proportional valve, a water inlet monitoring device and a water return monitoring device, the flow of cooling water in a water inlet pipeline is monitored in real time through the water inlet monitoring device, the flow of cooling water in a water return pipeline is monitored in real time through the water return monitoring device, the controller acquires data of the water inlet monitoring device and the water return monitoring device, and adjusts the opening of the electromagnetic proportional valve in real time according to the feedback data and preset water inlet and return flow, water pressure and water temperature parameters so as to control the flow speed and flow of the cooling water in the water inlet pipeline, thereby achieving the closed-loop automatic correction cooling operation mode of a mold and realizing digital closed-loop control. Compared with the prior art, this technical scheme can accurate control mould local cold and hot balance, and the local temperature of initiative control mould improves product quality, reduces the rejection rate, is favorable to further shortening the production beat.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of the present invention.
Icon: 1-controller, 2-mold temperature controller, 3-mold, 4-control unit, 41-electromagnetic proportional valve, 421-inflow flow sensor, 422-inflow temperature sensor, 423-inflow pressure sensor, 431-backwater flow sensor, 432-backwater temperature sensor, 433-backwater pressure sensor, 5-first normally closed stop valve, 51-first normally open switch valve, 6-second normally closed stop valve, 61-second normally open switch valve, 7-third normally closed stop valve, 71-third normally open switch valve, 8-touch screen.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the utility model is used, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and operation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "configured," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, a digital closed-loop cooling system for an injection mold includes a controller 1, a control unit 4, a mold temperature controller 2 for supplying cooling water to a mold 3, and a touch screen 8, wherein the touch screen 8 is electrically connected to the controller 1. The control unit 4 comprises an electromagnetic proportional valve 41, a water inlet monitoring device and a water return monitoring device, the electromagnetic proportional valve 41 is arranged on a water inlet pipeline of the mold 3, and the electromagnetic proportional valve 41 is electrically connected with the controller 1.
This monitoring devices of intaking disposes in the inlet channel of this mould 3, this monitoring devices of intaking establishes ties and locates the play water end of this electromagnetism proportional valve 41, this monitoring devices of intaking is connected with this controller 1 electricity, this monitoring devices of intaking is arranged in detecting the flow parameter of cooling water in this inlet channel, temperature parameter and pressure parameter, it is specific, the monitoring devices of intaking includes the inflow flow sensor 421 that establish ties in proper order along the direction of intaking, intake temperature sensor 422 and intake pressure sensor 423, and electromagnetism proportional valve 41, intake flow sensor 421, intake temperature sensor 422 and intake pressure sensor 423 establish ties in proper order along the direction of intaking, this intake flow sensor 421 adopts turbine flow sensor. It should be noted that, the water inlet monitoring device may also adopt other devices capable of detecting the water flow, the water temperature and the water pressure in the pipeline.
The backwater monitoring device is configured on the backwater pipeline of the mold 3, is electrically connected with the controller 1, and is used for detecting flow parameters, temperature parameters and pressure parameters of cooling water in the backwater pipeline, specifically, the backwater monitoring device comprises a backwater flow sensor 431, a backwater temperature sensor 432 and a backwater pressure sensor 433 which are sequentially connected in series, and the backwater flow sensor 431 also adopts a turbine flow sensor. It should be noted that, the return water monitoring device may also adopt other devices capable of detecting the water flow, the water temperature and the water pressure in the pipeline.
Real-time detection data of the water inlet monitoring device and the water return monitoring device are fed back to the controller 1 and displayed on the touch screen 8 in real time, so that an operator can monitor and adjust the cooling system conveniently. In addition, an operator can input set values of flow, water temperature and water pressure of the water inlet pipeline through the touch screen 8, and in the use process of the cooling system, according to parameter data such as flow, water temperature and water pressure fed back by the control unit 4, the controller 1 controls the electromagnetic proportional valve 41 to continuously correct the flow speed and flow of cooling water output by the mold temperature controller 2, so that the local temperature of the mold 3 can be actively regulated and controlled.
In the embodiment of the utility model, a cooling system comprising a mold temperature controller 2, a controller 1 and a control unit 4 is arranged, the mold temperature controller 2 is used as a water supply source, cooling water in the mold temperature controller 2 is used for inputting cooling water to a mold 3 through a water inlet pipeline, the heated cooling water in the mold 3 flows back to the mold temperature controller 2 through a water return pipeline, the control unit 4 comprises an electromagnetic proportional valve 41, a water inlet monitoring device and a water return monitoring device, the flow of the cooling water in the water inlet pipeline is monitored in real time through the water inlet monitoring device, the flow of the cooling water in the water return pipeline is monitored in real time through the water return monitoring device, the controller 1 acquires data of the water inlet monitoring device and the water return monitoring device, and according to the feedback data and preset water inlet and return flow, water pressure and water temperature parameters, the controller 1 adjusts the opening of the electromagnetic proportional valve 41 in real time to control the flow rate and flow of the cooling water in the water inlet pipeline, so as to achieve a closed-loop automatic correction cooling operation mode of the mold 3, and digital closed-loop control is realized. Compared with the prior art, this technical scheme can accurate control 3 local cold and hot balances of mould, and 3 local temperatures of active control mould improve product quality, reduce the rejection rate, are favorable to further shortening the production beat.
It should be noted that, the water channel in the mold 3 has a scaling phenomenon, and the change of the seasonal temperature will affect the flow rate, the water temperature and the water pressure of the water inlet end and the water outlet end of the water channel in the mold 3, that is, the flowing state of the cooling water changes, and the change will affect the cooling effect of the mold 3, thereby affecting the quality of the injection molding product. The flow state of the cooling water may be changed by other factors in the production. In order to keep the stability of the flowing state of the cooling water and ensure the stability of the cooling effect of the mold 3, the water inlet pipeline and the water return pipeline of the mold 3 are respectively provided with a flow sensor, a temperature sensor and a pressure sensor, according to the respective flow rate and the real-time parameters of the flow temperature and the flow pressure in the water inlet pipeline and the water return pipeline, the controller 1 adjusts the flow rate and the flow rate of the water inlet pipeline through the real-time control electromagnetic proportional valve 41, the accurate and stable flowing state of the cooling water in the water channel of the mold 3 is ensured, and the stability of the cooling effect of the mold 3 is further ensured.
In some embodiments, the water-saving device further comprises a first normally closed stop valve 5, the first normally closed stop valve 5 is arranged on the water inlet pipeline, and the first normally closed stop valve 5 is connected with the electromagnetic proportional valve 41 in parallel. Note that, a first normally open/close valve 51 is provided at each end of the electromagnetic proportional valve 41. Because the mold temperature controller 2 reaches the required stable output state from the startup, the mold temperature controller 2 needs to operate for a certain time to reach the required stable output state, and under the requirement of lean management, when the cooling system is overhauled, the mold temperature controller 2 needs to be ensured not to be shut down, and the normal operation is kept. To this, this technical scheme is in the first normally closed stop valve 5 of setting of inlet channel, and first normally closed stop valve 5 is parallelly connected with electromagnetism proportional valve 41. When the electromagnetic proportional valve 41 is maintained, an operator operates to change the first normally closed stop valve 5 from a closed state to an open state, a bypass pipeline where the first normally closed stop valve 5 is located bridges the electromagnetic proportional valve 41, and the two first normally open switch valves 51 are closed, so that the water inlet pipeline is smooth, the cooling system is maintained to operate, and the operator can detach the electromagnetic proportional valve 41 to facilitate maintenance or replacement. After the electromagnetic proportional valve 41 is maintained and installed, the first normally open switch valve 51 is opened, and the first normally closed stop valve 5 is closed.
In some embodiments, the mold temperature controller further comprises a second normally closed stop valve 6, the second normally closed stop valve 6 is arranged between the mold temperature controller 2 and the control unit 4, one end of the second normally closed stop valve 6 is communicated with the water outlet end of the mold temperature controller 2, and the other end of the second normally closed stop valve 6 is communicated with the water return end of the mold temperature controller 2. Under the principle of overhauing in the state of not shutting down, for the convenience of the control unit 4 overhauls and maintains with mould 3 cutting off the water supply, this technical scheme sets up second normally closed stop valve 6 between the play water end of mould temperature machine 2 and return water end, and set up a second normally open switch valve 61 in the supporting water inlet pipe way, also set up a second normally open switch valve 61 in the supporting water return pipe way, when needing to carry out the maintenance of cutting off the water supply to control unit 4 and mould 3, open second normally closed stop valve 6 earlier, close two second normally open switch valves 61 again, make the cooling water that mould temperature machine 2 output flow back to mould temperature machine 2 in through second normally closed stop valve 6, keep mould temperature machine 2 not shutting down.
In some embodiments, a third normally closed stop valve 7 is further included, the third normally closed stop valve 7 is disposed between the control unit 4 and the mold 3, one end of the third normally closed stop valve 7 is communicated with the water inlet end of the mold 3, and the other end of the third normally closed stop valve 7 is communicated with the water return end of the mold 3. Under the principle of overhauing in the state of not shutting down, for the convenience of changing mould 3, this technical scheme sets up third normally closed stop valve 7 in water intake pipe and outlet pipe way in mould 3 one side, and what correspond is at a third normally open switch valve 71 of water intake pipe and the individual configuration of return water pipeline. When the mold 3 is replaced, the third normally closed stop valve 7 is opened, and then the two third normally open switch valves 71 are closed, so that the cooling water output by the mold temperature controller 2 flows back to the mold temperature controller 2 through the third normally closed stop valve 7, and the mold temperature controller 2 is kept not to stop.
It should be noted that, the present published chinese utility model with the patent name "injection mold cooling temperature control system" and the publication number CN205364448U sets up an electromagnetic control valve on every cooling water inlet pipe from the cooling water machine to the mold, sets up a temperature sensor on every cooling water return pipe from the mold to the cooling water machine, and the electromagnetic control valve and the temperature sensor are all electrically connected with an electric cabinet, and the electric cabinet controls the size of the automatically regulated water path flow of the electromagnetic control valve according to the information fed back by the temperature sensor. The opening of the electromagnetic regulating valve is large, and the flow of the cooling water channel is increased; the opening of the electromagnetic regulating valve is small, and the flow of the cooling water channel is reduced. The cooling temperature of the mold is controlled by adjusting the flow rate of the cooling water, so that the temperature of the mold is stabilized within a range of a set value, and the size of the injection molding part is stabilized. However, this patent cannot detect the water flow and water pressure in the pipeline in real time, cannot automatically stabilize the flowing state of the cooling water in the pipeline, and cannot realize maintenance without stopping the machine.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A digital closed-loop cooling system of an injection mold comprises a controller and a mold temperature controller for supplying cooling water to the mold,
also comprises a control unit, the control unit comprises an electromagnetic proportional valve, a water inlet monitoring device and a water return monitoring device,
the electromagnetic proportional valve is arranged on a water inlet pipeline of the die and is electrically connected with the controller,
the water inlet monitoring device is arranged on a water inlet pipeline of the die, the water inlet monitoring device is connected in series with the water outlet end of the electromagnetic proportional valve and is electrically connected with the controller, the water inlet monitoring device is used for detecting the flow parameter, the temperature parameter and the pressure parameter of the cooling water in the water inlet pipeline,
the backwater monitoring device is configured on the backwater pipeline of the mold, electrically connected with the controller and used for detecting the flow parameter, the temperature parameter and the pressure parameter of the cooling water in the backwater pipeline.
2. An injection mold digital closed-loop cooling system as in claim 1,
also comprises a first normally closed stop valve,
the first normally closed stop valve is arranged on the water inlet pipeline and is connected with the electromagnetic proportional valve in parallel.
3. An injection mold digital closed-loop cooling system as in claim 1,
the water inlet monitoring device comprises a water inlet flow sensor, a water inlet temperature sensor and a water inlet pressure sensor which are sequentially connected in series along the water inlet direction.
4. An injection mold digital closed-loop cooling system as in claim 1,
the backwater monitoring device comprises a backwater flow sensor, a backwater temperature sensor and a backwater pressure sensor which are sequentially connected in series.
5. An injection mold digital closed-loop cooling system as in claim 1,
also comprises a second normally closed stop valve,
the second normally closed stop valve is arranged between the mold temperature controller and the control unit, one end of the second normally closed stop valve is communicated with the water outlet end of the mold temperature controller, and the other end of the second normally closed stop valve is communicated with the water return end of the mold temperature controller.
6. An injection mold digital closed-loop cooling system as in claim 1,
also comprises a third normally closed stop valve,
the third normally closed stop valve is arranged between the control unit and the die, one end of the third normally closed stop valve is communicated with the water inlet end of the die, and the other end of the third normally closed stop valve is communicated with the water return end of the die.
7. An injection mold digital closed-loop cooling system as in claim 1,
the device also comprises a touch screen which is provided with a touch screen,
the touch screen is electrically connected with the controller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120892855.5U CN216068545U (en) | 2021-04-27 | 2021-04-27 | Digital closed-loop cooling system of injection mold |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120892855.5U CN216068545U (en) | 2021-04-27 | 2021-04-27 | Digital closed-loop cooling system of injection mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115301922A (en) * | 2022-08-30 | 2022-11-08 | 广东鸿泰科技股份有限公司 | Cooling real-time control system and method for die-casting die |
-
2021
- 2021-04-27 CN CN202120892855.5U patent/CN216068545U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115301922A (en) * | 2022-08-30 | 2022-11-08 | 广东鸿泰科技股份有限公司 | Cooling real-time control system and method for die-casting die |
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