WO2021218222A1

WO2021218222A1 - Super-efficient air heating system and core making machine

Info

Publication number: WO2021218222A1
Application number: PCT/CN2020/141393
Authority: WO
Inventors: 杨林龙; 徐磊磊
Original assignee: 苏州明志科技股份有限公司
Priority date: 2020-04-27
Filing date: 2020-12-30
Publication date: 2021-11-04
Also published as: CN112496275A

Abstract

A super-efficient air heating system, comprising an air blowing cover (10) and heaters (20) made of a material having a melting point of 700-1500℃. An S-shaped air flow channel (21) is formed in each heater; an outlet of each air flow channel can be connected to an inlet of the air blowing cover, and high-temperature air is conveyed to a mold cavity of a core box by means of the air blowing cover; the heaters and the air blowing cover may be integrated, without an intermediate pipeline or a pipeline having a high temperature heat tracing function connected to the heaters and the air blowing cover. Also provided is a core making machine comprising the super-efficient air heating system. The material of the heaters of the core making machine is changed to increase the set temperature of the heaters so as to obtain ultra-high temperature hot air; moreover, the temperature loss of a hot air conveying pipeline is reduced, and the same air blowing cover outlet temperature is obtained; the energy consumption is lower, and the air blowing cover outlet temperature is higher, thereby facilitating further improving the inorganic curing efficiency.

Description

Super-efficiency air heating system and core making machine

Cross-references to related applications

This application claims the priority of the Chinese patent application with the application number 202010346407.5 and titled "Super-Efficiency Air Heating System and Core Making Machine" filed with the Chinese Patent Office on April 27, 2020, the entire content of which is incorporated into this application by reference middle.

Technical field

This application relates to the technical field of casting core making, in particular, to a super-efficiency air heating system and a core making machine.

Background technique

The core making machine is an important equipment for core sand molding in the foundry industry. The core box of the core making machine is configured to make the core sand into a sand core, and the sand core is configured to form the inner cavity and hole of the casting. The manufacture of the sand core is also in sand casting. An important process, so the use of core making machines is increasing.

In the foundry field, the core making machine is a kind of filling core sand into the core box, and hardening or solidifying the core sand after filling the core box to achieve the purpose of manufacturing sand cores. One of the core-making methods is the inorganic binder process core-making method. After the core sand in the core box is filled, high-temperature air (usually 50℃-400℃) needs to be blown in, and the core-making machine must provide sufficient blowing Of hot air to achieve the curing reaction. Through production and use, it is found that increasing the blowing temperature can help to further improve the efficiency of inorganic curing. However, the existing conventional air heating system cannot meet the higher heating temperature. At the same time, the existing core-making machine structure is in the process of conveying high-temperature air. Among them, the temperature loss of high-temperature air is large, and the set temperature of the air heating system cannot be reduced, the curing efficiency cannot be further improved, and the energy consumption of the heating device cannot be reduced.

Application content

The embodiments of the present application provide a super-efficiency air heating system and a core making machine, which can solve the problem that the conventional air heating system in the prior art transports high-temperature air in the process of high-temperature air temperature loss, which cannot reduce the air heating system. At least one of the technical problems of setting the temperature, the inability to further improve the curing efficiency, and the inability to reduce the energy consumption of the heating device.

This embodiment provides a super-efficiency air heating system, including an air blowing hood and a heater;

The blowing hood can be movably arranged on the core making machine body, the outlet of the blowing hood can be docked with the cavity of the core box, an S-shaped arrangement of air flow channels is formed inside the heater, and the outlet of the air flow channel can be connected with the inlet of the blowing hood Connect and deliver high-temperature air to the cavity of the core box through the air blowing hood.

Optionally, the super-efficiency air heating system further includes a first self-heating pipe and a second self-heating pipe. The first self-heating pipe is installed in the pressure head mechanism, and the second self-heating pipe is installed in the blowing hood. The inlet of a self-heating pipeline is connected with the outlet of the air flow channel, and the outlet of the first self-heating pipeline can be connected with the inlet of the second self-heating pipeline along with the movement of the pressure head mechanism.

Optionally, the first self-heating pipe and the second self-heating pipe have the same structure. The first self-heating pipe includes a hard pipe and a heating cable installed on the hard pipe. The heating cable is configured to supplement the loss of high-temperature air when passing through the hard pipe. The heat.

Optionally, the hard pipe is a straight pipe, the length of the straight pipe is vertical, the upper opening of the hard pipe is a high-temperature air inlet, and the lower end of the hard pipe is a high-temperature air outlet; the heating cable is arranged outside the hard pipe.

Optionally, the heating cable is configured as a temperature-controlled electric heating cable; the heating cable includes a conductive polymer composite material and a flat ribbon cable formed by two parallel metal wires and an insulating sheath. The heating cable is configured to use electric heating equipment to connect Electricity is converted into heat.

Optionally, the material of the hard tube is a heat insulating material.

Optionally, the first self-heating pipeline and the second self-heating pipeline have the same structure. The first self-heating pipeline includes a flexible pipe and a self-heating component installed on the flexible pipe. The self-heating component is configured to supplement high-temperature air passing through the flexible pipe. The heat lost at the time;

Self-heating components include heating wires or heating tubes.

Optionally, the super-efficiency air heating system further includes a hose, and the outlet of the air flow channel is connected to the inlet of the first self-heating pipeline through the hose.

Optionally, the heater is installed on the top of the core making machine, and the outlet of the air flow channel is connected to the inlet of the first self-heating pipeline.

Optionally, the indenter mechanism is movably installed on the main body of the core making machine, and is configured to be capable of reciprocating vertically, so that the indenter mechanism can approach and move away from the cavity opening of the core box, and the first self-heating pipeline is installed on the indenter mechanism superior.

Optionally, the heater is fixed in the blowing hood, and both of them are slidably arranged in the core making machine body.

Optionally, the super-efficiency air heating system further includes an air delivery pipeline installed on the pressure head mechanism, and the outlet of the air delivery pipeline can be connected with the inlet of the air flow channel along with the movement of the pressure head mechanism.

Optionally, there are multiple heaters, and the multiple heaters are connected in series.

Optionally, the first stage heater of the plurality of heaters connected in series is made of low melting point material, and the last stage heater is made of high melting point material.

Optionally, the number of heaters is two, and the two heaters are fixedly installed on the main body of the core making machine.

Optionally, the heater is made of a material with a melting point of 700°C to 1500°C.

Optionally, the number of heaters is two, and the two heaters are connected by a heat-insulating pipe, and both are fixedly installed on the main body of the core making machine.

Optionally, the material of the heater includes copper material.

Optionally, it further includes a moving assembly; the moving assembly is located between the core making machine body and the blowing hood, the moving assembly is connected to the blowing hood and the core making machine body, respectively, and the blowing hood is configured to be relative to the core making machine through the moving assembly Mobile connection.

This embodiment also provides a core making machine, including the super-efficiency air heating system of any one of the foregoing embodiments.

Compared with the prior art, the beneficial effects of the super-efficiency air heating system and core-making machine provided by this application include the following:

The super-efficiency air heating system provided by the present application includes an air blowing hood and a heater, wherein the air blowing hood is movably arranged on the core making machine body. During the process of filling the core sand into the core box, the air blowing hood is away from the core box. The core box and the air blowing hood do not interfere with each other. After the filling is completed, the air blowing hood can approach the core box and make its outlet butt with the cavity of the core box; an S-shaped arrangement of air flow channels is formed inside the heater, and the air is compressed outside. It enters from the inlet of the air flow channel and completes heating when passing through the air flow channel. The outlet of the air flow channel can be connected with the inlet of the air blowing hood. After the air is heated to the set temperature in the air flow channel, it is blown towards by the air blowing hood. In the cavity of the core box, the solidification operation of the core sand in the cavity is completed.

By setting the air flow channel in the heater into an S-shaped distribution, on the basis of a certain length of the air flow channel, the area in contact with the outside world is smaller, the temperature loss of the air during the heating process is smaller, and the heater energy consumption is lower. Effectively ensure that the heater heats the air to the set temperature, which improves the curing efficiency and ensures the working performance of the core making machine.

The technical advantages of the core-making machine provided in this application are the same as those of the above-mentioned super-efficiency air heating system, and will not be repeated here.

In addition, the core maker increases the heater's set temperature by changing the material of the heater, making it possible to obtain ultra-high temperature hot air, while reducing the temperature loss of the hot air delivery pipeline, and obtaining the same outlet temperature of the blowing hood. This solution The energy consumption is lower, and the higher outlet temperature of the blowing hood helps to further improve the efficiency of inorganic curing and ensure the working performance of the core making machine.

Other features and advantages of the present application will be described in detail in the following specific embodiments.

Description of the drawings

In order to more clearly describe the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application. Therefore, It should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other relevant drawings can be obtained from these drawings without creative work.

FIG. 1 is a schematic diagram of the structure of a core making machine before the super-efficiency air heating system works according to an embodiment of the application;

FIG. 2 is a schematic structural diagram of a core making machine when the super-efficiency air heating system is working according to an embodiment of the application;

FIG. 3 is a schematic structural diagram of another core making machine before the super-efficiency air heating system works according to an embodiment of the application;

Fig. 4 is a schematic structural diagram of another core-making machine when the super-efficiency air heating system is working according to an embodiment of the application.

Icon: 10-blowing hood; 20-heater; 30-first self-heating pipeline; 40-pressure head mechanism; 50-hose; 60-air delivery pipeline;

21-Air flow path.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in various different configurations.

In the description of this application, it should be noted that the orientation or positional relationship indicated by the terms "inner" and "outer" are based on the orientation or positional relationship shown in the drawings, or are usually placed when the application product is used. The orientation or positional relationship is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the application. In addition, the terms "first", "second", etc. are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or Integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood under specific circumstances.

1 to 4, the super-efficiency air heating system provided by this embodiment includes an air blowing hood 10 and a heater 20, wherein the air blowing hood 10 is movably arranged on the body of the core making machine, and the core sand is filled to the core box During the process, the blowing hood 10 is far away from the core box, and the core box and the blowing hood 10 do not interfere with each other. After the filling is completed, the blowing hood 10 can be close to the core box, and its outlet is docked with the core box cavity; An S-shaped air flow passage 21 is formed inside the device 20. The external compressed air enters from the inlet of the air flow passage 21 and completes heating when passing through the air flow passage 21. After the air is heated to the set temperature in the air flow channel 21, the air is blown into the cavity of the core box from the air blowing hood 10 to complete the solidification operation of the core sand in the cavity.

In this embodiment, after the core sand in the core box is filled, the heater is required to blow high temperature air into the core box (usually 50°C-400°C), but the size and structure of the heater 20 cannot achieve long air flow. Therefore, by setting the air flow channel 21 in the heater 20 to be distributed in an S shape, the air flow channel 21 of the heater 20 has a certain length, and the area in contact with the outside is smaller. The air is heated during the heating process. The temperature loss of the heater 20 is smaller, the energy consumption of the heater 20 is lower, and the heater 20 can effectively ensure that the heater 20 heats the air to a set temperature, which improves the curing efficiency and ensures the working performance of the core making machine. By changing the material of the heater 20 to increase the set temperature of the heater 20, it is possible to obtain ultra-high temperature hot air, while reducing the temperature loss of the hot air delivery pipe 60, and obtaining the same outlet temperature of the blowing hood 10. This solution The energy consumption is lower, and the higher outlet temperature of the blowing hood 10 helps to further improve the inorganic curing efficiency and ensure the working performance of the core making machine.

It is worth noting that in this embodiment, the core making machine body mentioned above may refer to the frame of the core making machine, and the air blowing hood 10 is preferably horizontally moved and arranged on the frame; or, the air blowing hood 10 can also be independent of the frame. In addition to the frame, the air self-heating device can also include a moving component. After the core sand is filled into the core box, the moving component will move the blowing hood 10 above the core box, and make the outlet of the blowing hood 10 and the core box Cavity butt joint. In addition, the aforementioned docking refers to the abutment between the outlet of the blowing hood 10 and the cavity opening of the core box, that is, the outlet of the blowing hood 10 and the blowing inlet of the core box abut each other to complete the blowing hood. 10 is in communication with the cavity of the core box. Finally, the high-temperature air mentioned in this embodiment generally refers to air with a temperature below 250°C. When there is a demand for ultra-high temperature blowing in an inorganic process, the high-temperature air also refers to air with a temperature between 250°C and 400°C.

In addition, the air flow passage 21 can also adopt other shapes, and it is only necessary to ensure that the heat exchange efficiency of the heater 20 is increased on the basis of a certain amount of the heater 20, which will not be repeated here.

Optionally, the moving assembly is located between the core making machine body and the blowing hood, the moving assembly is respectively connected with the blowing hood and the core making machine body, and the blowing hood is configured to be movably connected to the core making machine through the moving assembly.

Among them, the moving assembly includes a sliding rail and a sliding groove, the sliding rail is connected with the blowing hood, the sliding groove is arranged along the length direction of the core making machine body, the sliding rail can be clamped in the sliding groove, and the sliding rail is matched with the sliding groove Sliding connection. When the core sand is filled into the core box, the blowing hood 10 is far away from the core box, and the core box and the blowing hood 10 do not interfere with each other. After the filling is completed, the blowing hood 10 can approach the core box and make Its outlet is butt-connected with the cavity of the core box; in addition, the sliding rail and the sliding groove can achieve snap-fitting, thereby enabling the blowing hood 10 to be snap-fitted to the core-making machine body.

In addition, the moving component may further include a sliding fitting connection of the protrusion and the sliding groove, and the moving component may also include a sliding fitting connection of the roller and the rolling groove, which will not be repeated here.

Specifically, this embodiment also introduces the specific structure of the super-efficiency air heating system in detail as follows.

1 and 2, in this embodiment, the super-efficiency air heating system further includes a first self-heating pipe 30 and a second self-heating pipe. The first self-heating pipe 30 is installed on the pressure head mechanism 40, and the second self-heating pipe The self-heating pipe is installed in the blowing hood 10, the inlet of the first self-heating pipe 30 is connected with the outlet of the air flow channel 21, and the outlet of the first self-heating pipe 30 can follow the movement of the pressure head mechanism 40 and the second The entrance of the self-heating pipeline is connected.

In this embodiment, the indenter mechanism 40 is slidably mounted on the main body of the core making machine, and is configured to be capable of vertical reciprocating movement, so that the indenter mechanism 40 can approach and move away from the cavity opening of the core box, that is, the indenter mechanism 40 can approach and Away from the blowing inlet of the core box, the first self-heating pipe 30 is installed on the pressure head mechanism 40; specifically, the pressure head mechanism 40 is slidably installed on the core machine main body and can move vertically to and fro to approach and Far away from the cavity opening of the core box, that is, near and far from the blowing inlet of the core box, the first self-heating pipe 30 is installed on the head mechanism 40. When the head mechanism 40 is lowered to the lowest end, the first self-heating pipe The outlet at the lower end of 30 abuts against the inlet of the second self-heating pipeline. At this time, after the heater 20 heats the air to the set temperature, the high-temperature air passes through the first self-heating pipe 30 and the second self-heating pipe to the blowing hood 10, and then the blowing hood 10 blows to the core box The opening of the cavity, that is, the blowing hood 10 blows to the blowing inlet of the core box.

That is, in the process of high-temperature air being transported to the blowing hood 10, both the first self-heating pipe 30 and the second self-heating pipe can reheat the passing high-temperature air to supplement the temperature loss of the high-temperature air during the transportation process. , To ensure that the temperature when the high-temperature air finally enters the cavity of the core box reaches the set temperature, and further ensures the curing effect of the core sand.

In this embodiment, the first self-heating pipe 30 and the second self-heating pipe have the same structure. The first self-heating pipe 30 includes a hard pipe and a heating cable installed on the hard pipe. The heating cable is configured to supplement the high-temperature air passing through the hard pipe. The temperature lost while the tube.

Optionally, the hard pipe is a straight pipe, the length of the straight pipe is vertical, the upper opening of the hard pipe is a high-temperature air inlet, and the lower end of the hard pipe is a high-temperature air outlet; the heating cable is arranged outside the hard pipe. The heating cable is configured as a temperature-controlled electric heating cable; the heating cable includes a conductive polymer composite material, two parallel metal wires and a flat ribbon cable formed by an insulating sheath. The heating cable is configured to use electric heating equipment to convert electrical energy into heat. . The material of the hard tube is heat insulating material.

Specifically, the hard pipe is preferably a straight pipe, and the length direction of the straight pipe is the vertical direction. The upper end of the hard pipe is the high-temperature air inlet, and the lower end is the high-temperature air outlet. The heating cable is arranged on the outside of the hard pipe. It is a temperature-controlled electric tracing cable, which can be a flat ribbon cable composed of conductive polymer composite material (plastic), two parallel metal wires and an insulating sheath. It uses electric heating equipment to convert electrical energy into heat. The hard tube contacts, completes its heat exchange with the high temperature air, and supplements the temperature lost by the high temperature air during the transportation process.

It should be noted that the hard tube in this embodiment is preferably made of a heat insulating material to further reduce the heat exchange between the high-temperature air and the hard tube.

Alternatively, in this embodiment, the first self-heating pipe 30 may be a flexible tube that is easy to bend and other self-heating components wrapped on the outer wall of the flexible pipe. Wire, heating tube and other heating parts.

Please continue to refer to FIGS. 1 and 2. In this embodiment, the super-efficiency air heating system may further include a hose 50, and the outlet of the air flow channel 21 is connected to the inlet of the first self-heating pipeline 30 through the hose 50.

Preferably, the heater 20 is installed on the top of the core making machine and is close to the pressure head mechanism 40. At this time, the air flow channel 21 can be connected to the first self-heating pipeline 30 through a hose 50, and the pressure head mechanism 40 can move up and down. At this time, the hose 50 will follow the pressure head mechanism 40 to ensure the communication between the air flow passage 21 and the first self-heating pipe 30 and to ensure the continuous air supply to the cavity in the core box.

In this embodiment, compared to setting the heating pipe to be directly connected to the blowing hood 10 through the hose 50, the length of the hose 50 in the above arrangement is smaller, and the high-temperature air loses less temperature when passing through the hose 50, and at the same time , The temperature lost by the high-temperature air here will also be replenished when it passes through the first self-heating pipe 30 later, ensuring that the temperature when it finally enters the cavity of the core box is within the set temperature range.

It is worth noting that, in this embodiment, the hose 50 is also preferably made of a heat-insulating material, so as to further reduce the temperature loss of high-temperature air when passing through the hose 50. Alternatively, in this embodiment, the heater 20 may also be installed in the pressure head mechanism 40, and the outlet of the air flow channel 21 is connected to the inlet of the first self-heating pipe 30.

Specifically, the heater 20 can be installed above the pressure head mechanism 40, and the outlet of the air flow path 21 is directly connected to the inlet of the first self-heating pipe 30. At this time, the air is heated to the set point in the air flow path 21. After the temperature enters the first self-heating pipeline 30 directly, there will be no additional temperature loss during transportation. The working requirements of the heating cable in the first self-heating pipeline 30 are lower, and the overall thermal efficiency of the super-efficiency air heating system Also higher.

Alternatively, when the heater 20 is installed in the pressure head mechanism 40, it can also be connected to the first self-heating pipe 30 through the hose 50 in the same manner.

Or, on the basis of the above embodiment, further, the arrangement of the heater 20 blowing hood 10 can also be changed. Among them, referring to Figures 3 and 4, in this embodiment, the heater 20 can also be fixed to In the air blowing hood 10, that is, the air is directly blown into the cavity of the core box after the air flow channel 21 is heated to a set temperature. The high-temperature air basically no longer has a conveying process, which effectively avoids the temperature loss of the high-temperature air during conveying.

Please continue to refer to Figures 3 and 4, on the basis that the heater 20 is fixedly connected to the blowing hood 10, that is, on the basis of the integrated installation of the heater 20 and the blowing hood 10, the super-efficiency air heating system may also include air delivery The pipeline 60 and the air delivery pipeline 60 are installed in the pressure head mechanism 40, and the outlet of the air delivery pipeline 60 can be connected with the inlet of the air flow channel 21 along with the movement of the pressure head mechanism 40.

That is, when the super-efficiency air heating system needs to work to provide high-temperature air to the cavity of the core box, the heater 20 and the blowing hood 10 are moved between the head mechanism 40 and the core box, and air is set on the head mechanism 40. The delivery pipeline 60, the pressure head mechanism 40 is moved down to complete the connection between the outlet of the air delivery pipeline 60 and the inlet of the air flow channel 21. At this time, only the compressed air needs to be input from the inlet of the air delivery pipeline 60. .

In this embodiment, on the basis of the integrated installation of the heater 20 and the air blowing hood 10, the super-efficiency air heating system also includes the arrangement of the air delivery pipeline 60, which is compared with the direct air delivery pipeline to the heater 20. Fixedly connected to the inlet of the air flow channel 21, the air delivery pipeline 60 does not need to move along with the heater 20 to cause possible interference, which effectively ensures that the air is smoothly delivered into the heater 20.

In this embodiment, there are multiple heaters 20, and multiple heaters 20 are connected in series.

When the heaters 20 are connected in series, the heating temperature of each heater 20 can be individually set, and the temperature is in a gradient increasing mode to save energy and reduce consumption. At the same time, if the heater 20 is connected in series, the first stage or primary heater 20 can be made of low melting point material (less than 700℃), the heater material is selected according to the set temperature, usually a secondary heater, the first stage is made of low melting point material, and the last stage is made of high melting point material.

Optionally, when a plurality of heaters 20 are connected in series, each level of heater 20 can heat the air in turn. A gradient increasing mode can be used, or a uniform temperature heating method can be used, using the uniform temperature of each level of heater 20. Set to heat the air at the flow rate to the set temperature, using multiple heaters 20 can ensure that the air can replenish heat in time regardless of transmission and heat loss; at the same time, it can also prevent the unipolar heater 20 from being unable to heat the air To the required temperature, the stability of the air heating in the overall structure is ensured.

Preferably, the number of heaters 20 is two, and the two heaters 20 are connected by an insulating tube, and both are fixedly installed on the core making machine body.

Alternatively, in this embodiment, only one heater 20 may be provided, as long as the heater 20 can heat the air at the set flow rate to the set temperature.

Preferably, the heater 20 can be made of a material with a melting point of 700°C to 1500°C. Compared with an aluminum heater 20 of the same volume and structure, the heater 20 in this embodiment can heat the air to 250°C. ℃ above, in order to meet the ultra-high temperature blowing demand of inorganic technology, so that the air heater 20 device has a wider application range.

Specifically, the heater 20 may be made of red copper material, or may be made of other metals or metal alloy materials with higher heat capacity and higher melting point.

This embodiment provides a core making machine, including the super-efficiency air heating system described in any one of the foregoing embodiments. The technical advantages of the core-making machine provided in this embodiment are the same as those of the above-mentioned super-efficiency air heating system, and will not be repeated here.

It should be noted that, in the case of no conflict, the features in the embodiments of the present application can be combined with each other.

The foregoing descriptions are only preferred embodiments of the application, and are not configured to limit the application. For those skilled in the art, the application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Industrial applicability

The super-efficiency air heating system provided by the embodiments of the present application is arranged in an S-shaped distribution of air flow passages in the heater. On the basis of a certain length of the air flow passage, the area in contact with the outside is smaller, and the air is heated during the heating process. The temperature loss is smaller, the heater's energy consumption is lower, and the heater can effectively ensure that the heater heats the air to the set temperature, which improves the curing efficiency and ensures the working performance of the core making machine.

Claims

A super-efficiency air heating system, characterized in that it comprises an air blowing hood (10) and a heater (20);

The blowing hood (10) is movably arranged on the core making machine body, the outlet of the blowing hood (10) can be docked with the cavity of the core box, and the inside of the heater (20) forms an S-shaped arrangement of air A runner (21), the outlet of the air runner (21) can be connected with the inlet of the air blowing hood (10), and the high temperature is delivered to the cavity of the core box through the air blowing hood (10) Air.
The super-efficiency air heating system according to claim 1, wherein the super-efficiency air heating system further comprises a first self-heating pipe (30) and a second self-heating pipe, the first self-heating pipe The path (30) is installed on the pressure head mechanism (40), the second self-heating pipe is installed on the blowing hood (10), and the inlet of the first self-heating pipe (30) is connected to the air flow The outlet of the channel (21) is connected, and the outlet of the first self-heating pipeline (30) can be connected with the inlet of the second self-heating pipeline along with the movement of the pressure head mechanism (40).
The super-efficiency air heating system according to claim 2, wherein the first self-heating pipe (30) and the second self-heating pipe have the same structure, and the first self-heating pipe (30) ) Includes a hard pipe and a heating cable installed on the hard pipe, and the heating cable is configured to supplement the heat lost when the high-temperature air passes through the hard pipe.
The super-efficiency air heating system according to claim 3, wherein the hard tube is a straight tube, the length direction of the straight tube is a vertical direction, and the upper end opening of the hard tube is a high-temperature air inlet, so The lower end opening of the hard tube is a high-temperature air outlet;

The heating cable is arranged on the outside of the hard pipe.
The super-efficiency air heating system according to claim 4, wherein the heating cable is configured as a temperature-controlled electric heating cable;

The heating cable includes a conductive polymer composite material, a flat ribbon cable formed by two parallel metal wires and an insulating sheath, and the heating cable is configured to convert electrical energy into heat by using electric heating equipment.
The super-efficiency air heating system according to any one of claims 3-5, wherein the material of the hard tube is a heat-insulating material.
The super-efficiency air heating system according to claim 3, wherein the first self-heating pipe (30) and the second self-heating pipe have the same structure, and the first self-heating pipe (30) ) Includes a flexible pipe and a self-heating component installed on the flexible pipe, the self-heating component is configured to supplement the heat lost when the high-temperature air passes through the flexible pipe;

The self-heating component includes a heating wire or a heating tube.
The super-efficiency air heating system according to any one of claims 2-7, wherein the super-efficiency air heating system further comprises a hose (50), and the outlet of the air flow channel (21) passes through the The hose (50) is connected with the inlet of the first self-heating pipeline (30).
The super-efficiency air heating system according to any one of claims 2-8, wherein the heater (20) is installed on the top of the core making machine, and the outlet of the air flow channel (21) is connected to the first The inlet of a self-heating pipeline (30) is connected to each other.
The super-efficiency air heating system according to any one of claims 2-9, wherein the pressure head mechanism (40) is slidably mounted on the main body of the core making machine, and is configured to be capable of reciprocating vertically to make the The pressing head mechanism (40) can be close to and away from the cavity opening of the core box, and the first self-heating pipeline (30) is installed on the pressing head mechanism (40).
The super-efficiency air heating system according to any one of claims 1-10, wherein the heater (20) is fixed in the blowing hood (10), and both of them are slidably arranged in the manufacturing system. Core machine body.
The super-efficiency air heating system according to claim 11, wherein the super-efficiency air heating system further comprises an air delivery pipeline (60), and the air delivery pipeline (60) is installed on the pressure head mechanism (40). ), the outlet of the air delivery pipeline (60) can be connected with the inlet of the air flow channel (21) along with the movement of the pressure head mechanism (40).
The super-efficiency air heating system according to any one of claims 1-12, wherein there are multiple heaters (20), and multiple heaters (20) are connected in series.
The super-efficiency air heating system according to claim 13, characterized in that the first-stage heater of the plurality of heaters (20) connected in series is made of low-melting-point material, and the last-stage heater is made of high-melting-point material.
The super-efficiency air heating system according to any one of claims 1-14, wherein the heater (20) is made of a material with a melting point of 700°C to 1500°C.
The super-efficiency air heating system according to any one of claims 1-15, wherein the number of the heaters (20) is two, and the two heaters (20) are connected by an adiabatic pipe, and They are all fixedly installed on the main body of the core making machine.
The super-efficiency air heating system according to any one of claims 1-16, wherein the material of the heater (20) comprises a copper material.
The super-efficiency air heating system according to any one of claims 1-17, further comprising a moving component;

The moving assembly is located between the core making machine body and the blowing hood, the moving assembly is respectively connected with the blowing hood and the core making machine body, and the blowing hood is configured to pass through the The moving component is slidably connected with the core making machine.
A core making machine, characterized by comprising the super-efficiency air heating system according to any one of claims 1-18.