CN116728755A - Control equipment and control method for hot press forming machine - Google Patents

Abstract

The invention relates to the technical field of matched equipment of a hot press forming machine, in particular to control equipment and a control method for the hot press forming machine; the device comprises a temperature control device, an air pressure control device and a hydraulic control device, wherein the air pressure control device is provided with an air inlet pipe, an air outlet pipe and a pressure regulating valve, and is used for outputting air to the die air tap; the hydraulic control device is used for controlling a hydraulic mechanism of the forming machine; the temperature control device is provided with a fluid inlet pipe and a fluid outlet pipe and is used for adjusting the temperature of the die. Finally, the traditional hot press forming machine is intelligently controlled, the cooling function without transferring the die is realized, and corresponding temperature, air pressure and hydraulic control can be carried out in a segmented mode, so that hot press forming of more composite materials is realized, the production efficiency is improved, and the product quality is improved.

Description

Control equipment and control method for hot press forming machine

Technical Field

The invention relates to the technical field of supporting equipment of a hot press forming machine, in particular to control equipment and a control method for the hot press forming machine.

Background

The hot press forming is a method for processing plastics, and mainly uses a hot press to carry out hot press, wherein a hot press die is arranged on the hot press, a semi-finished product is put into the hot press die, and the semi-finished product is hot-pressed into a required shape.

The hot press molding process is a traditional and commonly used molding method in the production of composite materials. The method is developed from the compression molding of common plastic products, and is a carbon fiber composite material molding method applicable to both thermosetting resin and thermoplastic resin. The basic process of compression molding is as follows: and (3) placing a certain amount of the pre-treated part to be formed into a preheated mold, and applying higher pressure through a hot press forming machine to enable the mold pressing material to fill the mold cavity. Solidifying the part to be formed under a certain pressure and temperature, cooling, taking out the product from the die, and carrying out necessary auxiliary processing to obtain the product.

The traditional hot press forming machine can only perform heating treatment, after the hot press working procedure is completed, hydraulic pressure is released, then the die is transferred to a cooling table for cooling, and then the die can be opened to take out the product. The process is complex, a certain danger exists when transferring the high-temperature die, and the cooling can not be performed on the basis of maintaining the hydraulic pressure aiming at the special composite material. Because of the relatively high purchase cost of the hot press forming machine, many small and medium-sized factories can only continue to use the traditional hot press forming machine.

Therefore, how to perform heating treatment and cooling treatment and adjust temperature, air pressure and hydraulic pressure in sections by a control device on the basis of the traditional hot press forming machine is a technical problem to be solved.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a technical scheme capable of solving the problems.

The invention provides control equipment for a hot press forming machine, which comprises a cabinet body, and a temperature control device, an air pressure control device and a hydraulic control device which are integrated in the cabinet body, wherein the air pressure control device is provided with an air inlet pipe, an air outlet pipe and a pressure regulating valve; the hydraulic control device is used for controlling a hydraulic mechanism of the forming machine, so that the hydraulic mechanism provides corresponding forming pressure for the die; the temperature control device is provided with a fluid access pipe and a fluid discharge pipe, the fluid access pipe is communicated with the inlet of the heat exchange pipeline of the die, the fluid discharge pipe is communicated with the outlet of the heat exchange pipeline of the die, and the temperature control device is used for adjusting the temperature of the die.

As a further scheme of the invention: the temperature control device is provided with an ice water inlet, a normal temperature water inlet and a steam inlet which are respectively communicated with the fluid access pipe, the ice water inlet is used for accessing external ice water, the normal temperature water inlet is used for accessing external normal temperature water, and the steam inlet is used for accessing external steam; the ice water access port is provided with an ice water access valve which is used for controlling the flow of ice water access; the normal-temperature water inlet is provided with a normal-temperature water inlet valve which is used for controlling the flow of normal-temperature water inlet; the steam access port is provided with a steam access valve, and the steam access valve is used for controlling the flow of steam access.

As a further scheme of the invention: the fluid access pipe is provided with an emptying pipe and an emptying valve, the emptying pipe is communicated with an external air pump, and the emptying pipe is used for blowing high-pressure gas into an inlet of a heat exchange pipeline of the die; the evacuation valve is fixedly connected to the evacuation pipe and controls the flow of high-pressure gas blown into the evacuation pipe.

As a further scheme of the invention: the temperature control device is provided with an ice water outlet, a normal temperature water outlet and a steam outlet which are respectively communicated with the fluid discharge pipe, wherein the ice water outlet is used for discharging ice water in the die, the normal temperature water outlet is used for discharging normal temperature water in the die, and the steam outlet is used for discharging high temperature steam in the die; the ice water discharge port is provided with an ice water discharge valve which is used for controlling the flow of ice water discharge; the normal temperature water discharge outlet is provided with a normal temperature water discharge valve which is used for controlling the flow of normal temperature water discharge; the steam discharge port is provided with a steam discharge valve for controlling a flow rate of steam discharge.

As a further scheme of the invention: the steam outlet is provided with a condensed water outlet valve, a drain valve and a one-way valve which are sequentially communicated, the fluid inlet end of the condensed water outlet valve is communicated with the fluid inlet end of the steam outlet valve, and the fluid outlet end of the one-way valve is communicated with the fluid outlet end of the steam outlet valve; the drain valve is used for draining condensed water in the steam fluid.

As a further scheme of the invention: the temperature control device is provided with a plurality of one-way valves which are respectively arranged in pipelines between the ice water inlet, the normal-temperature water inlet and the steam inlet communicated with the fluid inlet pipe; the one-way valve is also respectively arranged in the pipeline of the fluid discharge pipe which is connected to the ice water discharge port, the normal temperature water discharge port and the steam discharge port.

As a further scheme of the invention: the temperature control device is provided with a plurality of air blowing electromagnetic valves, the air inlet ends of the air blowing electromagnetic valves are communicated with an external air pump, and the air outlet ends of the air blowing electromagnetic valves are respectively communicated with an ice water access valve, a normal-temperature water access valve, a steam access valve, an ice water discharge valve, a normal-temperature water discharge valve and a steam discharge valve.

The invention also provides a control method for the hot press forming machine, which comprises the following steps:

and placing the die loaded with the part to be formed on a forming table of a hot press forming machine for heating treatment and compression molding treatment, and then cooling the die after the compression molding treatment, wherein in the heating treatment step and the cooling treatment step, the dies are controlled to be treated by the same control equipment on the forming table.

As a further scheme of the invention: the fluid in the heating treatment step and the fluid in the cooling treatment step are connected in the same fluid connecting pipe of the same control equipment, and are discharged in the same fluid discharging pipe of the same control equipment.

As a further scheme of the invention: the fluid inlet pipe is used for externally introducing fluids with different temperatures into the heat exchange pipeline of the die, so that the die is subjected to heating treatment or cooling treatment.

As a further scheme of the invention: the fluid discharge pipe discharges the fluids having different temperatures from the heat exchange line of the mold to the outside.

As a further scheme of the invention: the fluid with different temperatures flows to the fluid access pipe through the corresponding access pipelines under the coordination control of the air blowing electromagnetic valve and the pneumatic angle seat valve, and the fluid with different temperatures is discharged from the fluid discharge pipe to the corresponding discharge pipeline under the coordination control of the air blowing electromagnetic valve and the pneumatic angle seat valve.

As a further scheme of the invention: in the compression molding treatment step, high-pressure gas is filled into the air tap on the die, and the high-pressure gas is subjected to inflation and deflation treatment or air pressure control treatment by an air pressure control device in the same control equipment.

As a further scheme of the invention: in the compression molding processing step, the die Shi Yage die pressure is also applied to the die, and the die closing pressure is controlled by a hydraulic control device in the same control equipment to process the hydraulic mechanism on the molding machine.

As a further scheme of the invention: in the heating treatment step and the cooling treatment step, before the fluids with different temperatures are introduced, the heat exchange pipeline of the die is also subjected to air blowing and emptying treatment, so that the residual fluid in the heat exchange pipeline is emptied.

Compared with the prior art, the invention has the beneficial effects that:

1. corresponding temperature control device, air pressure control device and hydraulic control device are respectively arranged on the same control equipment, so that corresponding temperature, air pressure and hydraulic control can be carried out on the traditional hot press forming machine, the traditional hot press forming machine can carry out heating treatment and cooling treatment, the service life of the hot press forming machine is prolonged, and the application range of the traditional hot press forming machine is widened.

2. And the emptying pipe and the emptying valve are arranged on the fluid access pipe, so that gas or liquid left in the heat exchange pipeline inside the die can be emptied when the fluids with different temperatures are replaced, and the heating or cooling efficiency is improved.

Therefore, the invention can provide the control equipment for the hot press forming machine through the improvement, and the traditional hot press forming machine is intelligently controlled by using the corresponding control method, so that the cooling function without transferring a die is realized, and the corresponding temperature, air pressure and hydraulic pressure can be controlled in a segmented manner, so that the hot press forming of more composite materials is realized, the production efficiency is improved, the product quality is improved, the product is not easy to deform, the internal structure is not cracked and wound, and the appearance is more beautiful.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of the external structure of a cabinet of the present invention;

FIG. 2 is a schematic view of the internal structure of the cabinet of the invention;

FIG. 3 is a schematic view of the structure of the temperature control device of the present invention;

FIG. 4 is a schematic view of the structure of the fluid access tube of the present invention;

FIG. 5 is a schematic view of the structure of the fluid discharge tube of the present invention;

FIG. 6 is a schematic structural view of the blow solenoid valve of the present invention;

FIG. 7 is a schematic view of the pneumatic control device of the present invention;

FIG. 8 is a flow chart of the control method of the present invention;

FIG. 9 is a schematic illustration of a stage of the press treatment of the present invention;

FIG. 10 is a schematic diagram of oil pressure of the present invention;

FIG. 11 is a schematic illustration of a segmentation of the heat treatment of the present invention;

FIG. 12 is a schematic temperature diagram of the present invention;

FIG. 13 is a schematic illustration of a segment of the inflation process of the present invention;

FIG. 14 is a schematic air pressure diagram of the present invention.

Reference numerals and names in the drawings are as follows:

10 cabinet bodies; 11 an electrical control box; 20 a temperature control device; 21 a one-way valve; 22, an air blowing electromagnetic valve; 23 emptying the pipe; 24 an evacuation valve; 25 a filter; a 26 gate valve; 30 fluid access tubing; 31 an ice water inlet; 32 normal temperature water inlet; 33 steam inlet; 34, accessing ice water into the valve; 35 normal temperature water access valve; 36 steam access valve; 40 fluid discharge tube; 41 ice water discharge port; 42 normal temperature water outlet; 43 steam outlet; 44 an ice water discharge valve; 45 normal temperature water discharge valve; 46 steam vent valve; 51 a condensate drain valve; 52 drain valve; 60 air pressure control device; 61 air inlet pipe; 62 air outlet pipes; 63 pressure regulating valve; a 64-pressure solenoid valve; 65 pressure transmitter.

Detailed Description

The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 14, in an embodiment of the present invention, a control apparatus for a hot press forming machine includes a cabinet 10, and a temperature control device 20, an air pressure control device 60 and a hydraulic control device integrated inside the cabinet 10, wherein the air pressure control device 60 is provided with an air inlet pipe 61, an air outlet pipe 62 and a pressure regulating valve 63, the air inlet pipe 61 is communicated with an external air pump so as to be connected with air, the air outlet pipe 62 is communicated with a die air tap in the forming machine so as to output air for the die air tap, and the pressure regulating valve 63 is used for regulating the air pressure of the air output to the die air tap; the hydraulic control device is used for controlling a hydraulic mechanism of the forming machine, so that the hydraulic mechanism provides corresponding forming pressure for the die; the temperature control device 20 is provided with a fluid inlet pipe 30 and a fluid outlet pipe 40, the fluid inlet pipe 30 is communicated with an inlet of a heat exchange pipeline of the die, the fluid outlet pipe 40 is communicated with an outlet of the heat exchange pipeline of the die, and the temperature control device 20 is used for adjusting the temperature of the die so as to heat or cool the die.

Specifically, the hot press molding machine is generally provided with a corresponding molding table (not shown in the drawing), and the mold (not shown in the drawing) is generally divided into an upper mold frame and a lower mold frame, in which corresponding guide posts, mold cores, inserts, locking pieces, etc. of the prior art are provided. A part to be molded (not shown) made of a material such as carbon fiber prepreg is placed in a cavity of a mold core, then mold clamping is performed, and the mold after mold clamping is placed on a molding table for hot press molding. The mold core is also provided with a corresponding heat exchange pipeline (not shown in the figure), and external high-temperature steam can be introduced into the heat exchange pipeline, so that the mold core is heated, a part to be molded in the mold core is also heated, and the thermoplastic resin in the prepreg starts to flow at high temperature and is uniformly immersed between fiber filaments of the carbon fibers, so that the carbon fibers are better solidified and bonded.

In addition, as shown in fig. 7, for a part of the part to be molded having a space inside, it is necessary to put an air pipe in the space inside the part to be molded, and then to inflate the corresponding air tap by the air pressure control device 60, so that the inside of the part to be molded is maintained with high pressure air, thereby forming the corresponding shape inside the air pipe. It can be understood that the air pressure control device 60 may further be provided with an air pressure solenoid valve 64 and a pressure transmitter 65, where the air pressure solenoid valve 64 is electrically connected to the micro-control unit through a circuit, so as to control the opening and closing of the air inlet pipe 61 and the air outlet pipe 62. The pressure transmitter 65 may be installed in a corresponding pneumatic conveying line so as to convert the pressure of the conveyed pneumatic pressure into a corresponding electrical signal, so as to transmit the signal to the micro control unit, so that the micro control unit may better control the corresponding pneumatic pressure.

And then, a hydraulic mechanism of the hot press forming machine can be correspondingly controlled through a hydraulic control device (not shown in the figure) to generate corresponding die clamping pressure, so that corresponding hydraulic pressure is formed on two die frames of the die, and the hot press forming of the to-be-formed part in the die can be ensured under the corresponding hydraulic pressure. In addition, a corresponding electrical control box 11 can be provided in the cabinet 10, and the hydraulic control device is preferably installed in the electrical control box 11, which controls the hydraulic mechanism correspondingly through a corresponding circuit signal. The electric control box 11 can also be provided with a corresponding micro control unit (not shown in the figure) in the prior art, also called a single-chip microcomputer or a single-chip microcomputer, which properly reduces the frequency and the specification of the central processing unit, and forms peripheral interfaces such as a memory, a counter, USB, A/D conversion, UART, PLC, DMA and the like into a chip-level computer to perform different combination control for different application occasions. The micro control unit is internally provided with a corresponding driving program and a control method, so that control equipment can be driven to perform corresponding intelligent control. For example, the air blowing electromagnetic valve 22, the pressure regulating valve 63, the air pressure electromagnetic valve 64 and the pressure transmitter 65 are respectively connected with the micro-control unit in a circuit manner, so that the micro-control unit can control the air blowing electromagnetic valve, the pressure regulating valve and the air pressure electromagnetic valve to perform corresponding functions.

Again, the fluid inlet pipe 30 and the fluid outlet pipe 40 can be connected to or discharged from different temperature fluids, such as steam having a higher temperature, normal temperature water or ice water having a lower temperature, etc.

As shown in fig. 1 and 2, the temperature control device 20 is preferably provided with an ice water inlet 31, a normal temperature water inlet 32 and a steam inlet 33, which are respectively connected to the fluid inlet pipe 30, wherein the ice water inlet is used for accessing external ice water, the normal temperature water inlet 32 is used for accessing external normal temperature water, and the steam inlet 33 is used for accessing external steam; the ice water access port 31 is provided with an ice water access valve 34, and the ice water access valve 34 is used for controlling the flow of ice water access; the normal temperature water inlet 32 is provided with a normal temperature water inlet valve 35, and the normal temperature water inlet valve 35 is used for controlling the flow of normal temperature water inlet; the steam inlet 33 is provided with a steam inlet valve 36, and the steam inlet valve 36 is used for controlling the flow rate of steam inlet.

Specifically, the external fluids with different temperatures are connected to different inlets, then corresponding pneumatic angle seat valves are respectively arranged on the different inlets, and then the corresponding pneumatic angle seat valves are controlled by the air blowing electromagnetic valve 22, so that the micro control unit can control the opening and closing of the corresponding inlets, and further different fluids can be connected to the heat exchange pipeline inside the die through one fluid inlet pipe 30, so that the die is heated or cooled. Therefore, the ice water inlet valve 34, the normal temperature water inlet valve 35 and the steam inlet valve 36 are all provided as pneumatic angle seat valves.

As shown in fig. 2, preferably, the fluid access pipe 30 is provided with an evacuation pipe 23 and an evacuation valve 24, the evacuation pipe 23 being in communication with an external air pump, the evacuation pipe 23 being for blowing high pressure gas into the inlet of the heat exchange line of the mold; the evacuation valve 24 is fixedly connected to the evacuation pipe 23, and controls the flow rate of high-pressure gas blown into the evacuation pipe 23.

Specifically, when the fluid access pipe 30 needs to be accessed with fluids with different temperatures, a part of the fluid accessed last time is still remained in the heat exchange pipeline inside the mold, so that a corresponding emptying pipe 23 can be arranged, the remained part of the fluid is blown out of the heat exchange pipeline in advance by using high-pressure gas of an external air pump, and then the fluids with different temperatures are replaced. So that heating or cooling efficiency can be improved.

As shown in fig. 5, the temperature control device 20 is preferably provided with an ice water discharge port 41, a normal temperature water discharge port 42 and a steam discharge port 43 which are respectively communicated with the fluid discharge pipe 40, wherein the ice water discharge port 41 is used for discharging ice water in the mold, the normal temperature water discharge port 42 is used for discharging normal temperature water in the mold, and the steam discharge port 43 is used for discharging high temperature steam in the mold; the ice water discharge port 41 is provided with an ice water discharge valve 44, and the ice water discharge valve 44 is used for controlling the flow rate of ice water discharge; the normal temperature water discharge port 42 is provided with a normal temperature water discharge valve 45, and the normal temperature water discharge valve 45 is used for controlling the flow rate of normal temperature water discharge; the steam discharge port 43 is provided with a steam discharge valve 46, and the steam discharge valve 46 is used for controlling the flow rate of steam discharge.

Specifically, as such, fluids of different temperatures may be discharged through the fluid discharge pipe 40 and into the discharge ports of the respective temperatures. In order to save energy and reduce emission, the fluid is preferably recycled, so that different discharge ports can be arranged to split the fluid with different temperatures, and the fluid enters a circulation system with corresponding temperature for recycling. Also, the ice water discharge valve 44, the normal temperature water discharge valve 45 and the steam discharge valve 46 are all provided as pneumatic angle seat valves so as to be controllable by the air blowing solenoid valve 22.

As shown in fig. 5, preferably, the steam outlet 43 is provided with a condensed water outlet valve 51, a drain valve 52 and a check valve 21 which are sequentially communicated, a fluid inlet end of the condensed water outlet valve 51 is communicated with a fluid inlet end of the steam outlet valve 46, and a fluid outlet end of the check valve 21 is communicated with a fluid outlet end of the steam outlet valve 46; the drain valve 52 is used to drain condensed water from the vapor fluid.

Specifically, since the steam may generate corresponding condensed water during the heating process of the mold, a condensed water discharge pipeline may be connected in parallel to the pipeline corresponding to the steam discharge port 43, and the condensed water in the pipeline may be discharged by using the corresponding drain valve 52. Also, the condensate drain valve 51 is configured as a pneumatic angle seat valve so as to be controlled by the air blowing solenoid valve 22, and the corresponding condensate drain valve 51 is opened when condensate drain is required.

As shown in fig. 3, the temperature control device 20 is preferably provided with a plurality of check valves 21, and the check valves 21 are respectively arranged in the pipelines between the ice water inlet 31, the normal temperature water inlet 32 and the steam inlet 33 communicated with the fluid inlet pipe 30; the check valves 21 are also respectively arranged in the pipelines of the fluid discharge pipe 40 communicated with the ice water discharge port 41, the normal temperature water discharge port 42 and the steam discharge port 43.

Specifically, to prevent the fluid in the pipeline from being reversely conveyed, a one-way valve 21 may be disposed at a corresponding position, so as to ensure that the fluid flows in a preset inflow or discharge direction. Further, on the pipes of the ice water inlet 31, the normal temperature water inlet 32, and the steam inlet 33, a corresponding filter 25 for filtering the fluid and a gate valve 26 for manually closing the corresponding pipe may be provided.

As shown in fig. 6, the temperature control device 20 is preferably provided with a plurality of air blowing solenoid valves 22, the air inlet ends of the air blowing solenoid valves 22 are communicated with an external air pump, and the air outlet ends of the air blowing solenoid valves 22 are respectively communicated with an ice water inlet valve 34, a normal temperature water inlet valve 35, a steam inlet valve 36, an ice water discharge valve 44, a normal temperature water discharge valve 45 and a steam discharge valve 46. Specifically, in order to place the micro-control unit for electrical control, a plurality of air-blowing solenoid valves 22 may be provided so that the corresponding air-operated angle seat valves may be controlled.

As shown in fig. 8, the present invention preferably further provides a control method for a hot press molding machine, comprising the steps of: and placing the die loaded with the part to be formed on a forming table of a hot press forming machine for heating treatment and compression molding treatment, and then cooling the die after the compression molding treatment, wherein in the heating treatment step and the cooling treatment step, the dies are controlled to be treated by the same control equipment on the forming table.

Through the corresponding device integrated in the same control equipment, the traditional hot press forming machine can be intelligently controlled, so that the traditional hot press forming machine can perform heating treatment and cooling treatment. And the micro control unit is introduced to intelligently control the control equipment, so that a plurality of different hot press forming procedures can be realized.

As shown in fig. 9 and 10, preferably, the hydraulic pressure of the molding machine for the mold can be adjusted in sections, so as to meet the molding hydraulic pressure of different materials at different stages.

As shown in fig. 11 and 12, preferably, the temperature of the heating treatment performed on the mold by the control device may be adjusted in sections, so as to meet the molding temperatures of different materials at different stages.

As shown in fig. 13 and 14, preferably, the control device performs the air inflation treatment on the air pipe in the inner space of the part to be formed, and can perform the sectional adjustment, so as to meet the forming air pressure of different materials at different stages.

In addition, it will be appreciated that, in order to sense temperature, air pressure and hydraulic pressure, the control device may be further provided with corresponding temperature sensors (not shown), air pressure sensors (not shown) and liquid pressure sensors (not shown) and installed at corresponding positions, and the sensors are electrically connected to the micro control unit so as to feed back sensed corresponding values to the micro control unit.

The control device generally has the following bulk state in the corresponding control process of the hot press molding machine:

in the hot press molding state, the steam inlet valve 36 and the steam outlet valve 46 are simultaneously opened, and the steam enters the heat exchange line inside the mold, and then returns to the steam circulation line through the steam outlet 43. In addition, the condensed water is required to be discharged at regular time during the hot pressing process, and the condensed water can be discharged by the drain valve 52 by opening the condensed water discharge valve 51.

In the normal temperature cooling state, after the hot press molding is completed, the normal temperature water inlet valve 35 is opened, and the normal temperature water enters the heat exchange pipeline inside the mold through the normal temperature water inlet 32 and then returns to the normal temperature water circulation pipeline through the normal temperature water outlet 42. It will be appreciated that when the normal temperature water just enters the heat exchange line for cooling, the normal temperature water in its initial state can be heated to a relatively high temperature by the high temperature in the mold, and therefore the steam discharge valve 46 can be opened to allow the normal temperature water having a relatively high temperature to flow into the steam circulation line through the steam discharge port 43.

In the ice water cooling state, after the temperature of the mold is cooled to a certain degree, the normal-temperature water inlet valve 35 can be closed, and then the ice water inlet valve 34 is opened, so that the ice water enters the corresponding heat exchange pipeline through the ice water inlet 31, and the temperature of the mold is further reduced. Similarly, when the ice water just enters the heat exchange pipeline for cooling, the temperature of the ice water may rise relatively high, so that the warmed ice water can be discharged into the normal-temperature water circulation pipeline through the fluid discharge pipe.

And then, when the temperature of the die is reduced to a certain degree, corresponding pressure relief and die opening treatment can be carried out, and then the product is taken out.

The cold and hot integrated equipment of the control equipment has the advantages that the product is not easy to deform, the internal structure is not cracked and wound, and the appearance is more attractive.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (15)

1. The control equipment for the hot press forming machine is characterized by comprising a cabinet body (10), and a temperature control device (20), an air pressure control device (60) and a hydraulic control device which are integrated in the cabinet body (10), wherein the air pressure control device (60) is provided with an air inlet pipe (61), an air outlet pipe (62) and a pressure regulating valve (63), the air inlet pipe (61) is communicated with an external air pump so as to be accessed with air, the air outlet pipe (62) is communicated with a die air nozzle in the forming machine so as to output air for the die air nozzle, and the pressure regulating valve (63) is used for regulating the air pressure of the air output to the die air nozzle; the hydraulic control device is used for controlling a hydraulic mechanism of the forming machine, so that the hydraulic mechanism provides corresponding forming pressure for the die; the temperature control device (20) is provided with a fluid access pipe (30) and a fluid discharge pipe (40), the fluid access pipe (30) is communicated with an inlet of a heat exchange pipeline of the die, the fluid discharge pipe (40) is communicated with an outlet of the heat exchange pipeline of the die, and the temperature control device (20) is used for adjusting the temperature of the die.

2. The control device for a hot press forming machine according to claim 1, wherein the temperature control means (20) is provided with an ice water inlet (31), a normal temperature water inlet (32) and a steam inlet (33) which are respectively communicated with a fluid inlet pipe (30), the ice water inlet being for accessing external ice water, the normal temperature water inlet (32) being for accessing external normal temperature water, the steam inlet (33) being for accessing external steam; the ice water access port (31) is provided with an ice water access valve (34), and the ice water access valve (34) is used for controlling the flow of ice water access; the normal-temperature water inlet (32) is provided with a normal-temperature water inlet valve (35), and the normal-temperature water inlet valve (35) is used for controlling the flow of normal-temperature water inlet; the steam inlet (33) is provided with a steam inlet valve (36), and the steam inlet valve (36) is used for controlling the flow of steam inlet.

3. A control device for a hot press forming machine according to claim 1, characterized in that the fluid access pipe (30) is provided with an evacuation pipe (23) and an evacuation valve (24), the evacuation pipe (23) being in communication with an external air pump, the evacuation pipe (23) being intended to blow high pressure gas into the inlet of the heat exchange line of the mould; the evacuation valve (24) is fixedly connected to the evacuation pipe (23) and controls the flow rate of high-pressure gas blown into the evacuation pipe (23).

4. A control apparatus for a hot press molding machine according to claim 2, wherein the temperature control device (20) is provided with an ice water discharge port (41), a normal temperature water discharge port (42) and a steam discharge port (43) which are respectively communicated with a fluid discharge pipe (40), the ice water discharge port (41) being for discharging ice water inside a mold, the normal temperature water discharge port (42) being for discharging normal temperature water inside the mold, the steam discharge port (43) being for discharging high temperature steam inside the mold; the ice water discharge port (41) is provided with an ice water discharge valve (44), and the ice water discharge valve (44) is used for controlling the flow of ice water discharge; the normal temperature water discharge outlet (42) is provided with a normal temperature water discharge valve (45), and the normal temperature water discharge valve (45) is used for controlling the flow of normal temperature water discharge; the steam discharge port (43) is provided with a steam discharge valve (46), and the steam discharge valve (46) is used for controlling the flow rate of steam discharge.

5. The control apparatus for a hot press molding machine according to claim 4, wherein the steam discharge port (43) is provided with a condensed water discharge valve (51), a drain valve (52) and a check valve (21) which are sequentially communicated, a fluid inlet end of the condensed water discharge valve (51) is communicated with a fluid inlet end of the steam discharge valve (46), and a fluid discharge end of the check valve (21) is communicated with a fluid discharge end of the steam discharge valve (46); the drain valve (52) is used for draining condensed water in the steam fluid.

6. The control apparatus for a hot press molding machine according to claim 4, wherein the temperature control device (20) is provided with a plurality of check valves (21), the check valves (21) being respectively provided in the pipes communicating between the ice water inlet (31), the normal temperature water inlet (32) and the steam inlet (33) to the fluid inlet pipe (30); the one-way valve (21) is also respectively arranged in a pipeline between the fluid discharge pipe (40) communicated with the ice water discharge port (41), the normal-temperature water discharge port (42) and the steam discharge port (43).

7. The control device for a hot press molding machine according to claim 4, wherein the temperature control means (20) is provided with a plurality of air blowing solenoid valves (22), an air inlet end of the air blowing solenoid valves (22) is communicated with an external air pump, and an air outlet end of the air blowing solenoid valves (22) is respectively communicated with an ice water access valve (34), a normal temperature water access valve (35), a steam access valve (36), an ice water discharge valve (44), a normal temperature water discharge valve (45) and a steam discharge valve (46).

8. A control method for a hot press molding machine, comprising the steps of:

the mold loaded with the part to be molded is placed on a molding table of a hot press molding machine to be subjected to heating treatment and compression molding treatment,

then cooling the die after the die-pressing forming treatment,

in the heating treatment step and the cooling treatment step, the molds are controlled and treated by the same control equipment on the forming table.

9. A control method for a hot press forming machine according to claim 8, characterized in that the fluids in the heating process step and the cooling process step are both subjected to an access process in the same fluid access pipe (30) of the same control device and are both subjected to a discharge process in the same fluid discharge pipe (40) of the same control device.

10. A control method for a hot press molding machine according to claim 9, wherein the fluid introduction pipe (30) introduces a fluid having a different temperature from the outside into the heat exchange line of the mold, thereby performing a heating process or a cooling process on the mold.

11. A control method for a hot press molding machine according to claim 10, wherein the fluid discharge pipe (40) discharges the fluids having different temperatures from the heat exchange line of the mold to the outside.

12. A control method for a hot press forming machine according to claim 11, characterized in that the fluids of different temperatures flow to the fluid inlet pipe (30) through the respective inlet pipe under the cooperation control of the air blowing solenoid valve (22) and the pneumatic angle seat valve, respectively, and the fluids of different temperatures are discharged from the fluid discharge pipe (40) to the respective discharge pipe under the cooperation control of the air blowing solenoid valve (22) and the pneumatic angle seat valve, respectively.

13. The control method for a hot press molding machine according to claim 8, wherein in the compression molding step, the air tap on the mold is further inflated with a high-pressure gas, and the high-pressure gas is inflated and deflated or air pressure controlled by an air pressure control device (60) in the same control apparatus.

14. The control method according to claim 8, wherein in the compression molding step, the die Shi Yage is also subjected to a die pressure, and the die pressure is controlled by a hydraulic control device in the same control apparatus to control a hydraulic mechanism on the molding machine.

15. The control method for a hot press molding machine according to claim 8, wherein in the heating process and the cooling process, before the introduction of the fluids of different temperatures, the heat exchange line of the mold is further subjected to a blow air evacuation process, whereby the remaining fluid in the heat exchange line is evacuated.