Modular gas heating device and coremaking machine

Abstract

The utility model belongs to sand casting core making technical field discloses a modularization gas heating device and core making machine. Modularization gas heating device is used for to gas heating, including connecting piece, heating piece and at least two heating bodies, the part of two heating bodies of adjacent can be pasted and is connected, all are seted up gas passage in each heating body, the same side of heating body is seted up with the import and export that gas passage communicated, connecting channel is seted up in connecting piece, at least two heating bodies are connected and communicate through connecting piece, so that the gas passage of each heating body is mutually communicated, heating piece can set up in the outer wall of heating body. The utility model provides modularization gas heating device and core making machine, has simplified the installation and replacement of heating piece, has shortened the maintenance period, has reduced the maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of sand casting core-making technology, and in particular to a modular gas heating device and core-making machine. Background Technology

[0002] In the core-making process of sand casting, gas is an indispensable auxiliary medium. When the sand is filled into the core box, the gas can drive the sand to flow and eliminate dead corners. After the sand core is filled, the gas can trigger or accelerate the solidification reaction to ensure the strength of the sand core. Under normal circumstances, the gas in the core-making process is in a heated state to ensure the smooth progress of the core-making process.

[0003] In related technologies, an integral heater for core-making fluid is disclosed, including an integrally formed heating body. The heating body is provided with a fluid flow channel structure and a heating rod mounting hole is opened in the heating body. The heating rod is inserted into the heating rod mounting hole. During the core-making process, the heater expands due to heat and is easy to bend. At the same time, the heating body will also deform, which will cause the heating rod to get stuck in the heating rod mounting hole. The heating rod is difficult to replace, causing maintenance difficulties and increasing production costs. Utility Model Content

[0004] The purpose of this invention is to provide a modular gas heating device and a core-making machine. This simplifies the installation and replacement of heating elements, shortens maintenance cycles, and reduces maintenance costs.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A modular gas heating device for heating gas, comprising:

[0007] At least two heating bodies, with portions of two adjacent heating bodies able to fit together, each heating body having a gas channel, and an inlet and outlet communicating with the gas channel on the same side of the heating body;

[0008] A connector is provided with a connection channel, and at least two heating bodies are connected and communicated through the connector so that the gas channels of each heating body are interconnected.

[0009] A heating element, which can be disposed on the outer wall of the heating body.

[0010] Preferably, the outer wall of the heating body is provided with a heating groove, which extends along the width direction of the heating body, and the heating element can be accommodated in the heating groove.

[0011] Preferably, two adjacent heating bodies are connected in series by the connector, and the heating element is sandwiched in the heating groove of the two adjacent heating bodies along the thickness direction of the heating body.

[0012] Preferably, there are three heating bodies, and the connectors connect the outlet of one heating body and the inlet of the other two heating bodies to form a parallel connection. The heating element is sandwiched in the heating groove of two adjacent heating bodies along the thickness direction of the heating body, and the heating element is accommodated in the heating groove of two adjacent heating bodies along the width direction of the heating body.

[0013] Preferably, the heating grooves are provided in multiple ways, and the multiple heating grooves are arranged at intervals along the length direction of the heating body.

[0014] Preferably, the gas channel has a serpentine structure.

[0015] Preferably, the modular gas heating device further includes:

[0016] The clamping body is able to fit and connect with the heating body.

[0017] Preferably, the outer wall of the heating body is provided with a heating groove, which extends along the width direction of the heating body and along the thickness direction of the heating body. The clamping body is provided with a clamping groove on the side facing the heating body. The clamping groove and the heating groove are correspondingly arranged, and the heating element can be clamped between the heating groove and the clamping groove.

[0018] Preferably, the heating element is an electric heating rod.

[0019] The core-making machine includes a core-making body and the aforementioned modular gas heating device, wherein the modular gas heating device is disposed on the core-making body.

[0020] The beneficial effects of this utility model are:

[0021] This utility model provides a modular gas heating device and a core-making machine. The modular gas heating device is used to heat gas and includes a connector, a heating element, and at least two heating bodies. The portions of two adjacent heating bodies can be fitted together. Each heating body has a gas channel. An inlet and an outlet communicating with the gas channel are opened on the same side of the heating body. A connecting channel is opened in the connector. At least two heating bodies are connected and communicated through the connector so that the gas channels of each heating body are interconnected. The heating element can be disposed on the outer wall of the heating body.

[0022] When heating gas using a modular gas heating device, the gas enters the gas channel through the inlet of one of the heating bodies. The heating element transfers heat to the heating body through its outer wall, and the heat is transferred to the gas in the gas channel, completing the initial heating. The initially heated gas then enters the gas channel of the next heating body through the connector, and finally the heated gas is discharged. During prolonged heating, the heating element deforms due to heat. Since the heating element is located on the outer wall of the heating body, when replacing the heating element, it is only necessary to remove the heating element from the outer wall of the heating body and replace it with a new heating element. This simplifies the installation and replacement of the heating element, shortens the maintenance cycle, and reduces maintenance costs. Attached Figure Description

[0023] Figure 1 This is an exploded view of the modular gas heating device provided in this embodiment of the utility model;

[0024] Figure 2 This is a cross-sectional view of the modular gas heating device provided in this embodiment of the utility model;

[0025] Figure 3 This is an isometric view of the modular gas heating device provided in this embodiment of the utility model.

[0026] In the picture:

[0027] 1. Heating body; 11. Gas passage; 111. Inlet; 112. Outlet; 12. Heating groove;

[0028] 2. Connecting parts;

[0029] 3. Heating element;

[0030] 4. Clamp the body; 41. Clamp the groove. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] Example 1

[0036] This embodiment provides a modular gas heating device, such as... Figures 1-3 As shown, a device for heating gas includes a connector 2, a heating element 3, and at least two heating bodies 1. Parts of two adjacent heating bodies 1 can be connected in close contact. Each heating body 1 has a gas channel 11. An inlet 111 and an outlet 112 communicating with the gas channel 11 are provided on the same side of the heating body 1. A connecting channel is provided in the connector 2. At least two heating bodies 1 are connected and communicated through the connector 2 so that the gas channels of each heating body 1 are interconnected. The heating element 3 can be disposed on the outer wall of the heating body 1.

[0037] When heating gas using a modular gas heating device, the gas enters the gas channel 11 from the inlet 111 of one of the heating bodies 1. The heating element 3 transfers heat to the heating body 1 through its outer wall, and the heat is transferred to the gas in the gas channel 11, completing the initial heating. The initially heated gas enters the gas channel 11 of the next heating body 1 through the connector 2, and finally the heated gas is discharged. During long-term heating, the heating element 3 deforms due to heat. Since the heating element 3 is set on the outer wall of the heating body 1, when replacing the heating element 3, it is only necessary to remove the heating element 3 from the outer wall of the heating body 1 and replace it with a new heating element 3. This simplifies the installation and replacement of the heating element 3, shortens the maintenance cycle, and reduces maintenance costs.

[0038] Specifically, in this embodiment, the gas is compressed air. In other embodiments, the gas is triethylamine, etc. No limitation is made here.

[0039] Specifically, such as Figure 2 As shown, in this embodiment, the gas channel 11 has a serpentine structure. The serpentine structure extends the path and improves efficiency. Within a limited space, it extends the gas flow distance without increasing the size of the heating body 1, allowing for more thorough contact between the gas and the inner wall of the gas channel 11. Simultaneously, local vortices are generated at the bends of the serpentine structure, breaking the "laminar boundary layer" of the gas flow and resulting in more uniform contact between the gas and the inner wall of the gas channel 11. In other embodiments, the gas channel 11 can also be a U-shaped structure or a V-shaped structure, etc. No limitation is made here.

[0040] Specifically, in this embodiment, the connector 2 and the heating body 1 are connected by a standard pipe thread. This avoids air leakage caused by thermal expansion and contraction at the connection between the connector 2 and the heating body 1 due to temperature changes. In other embodiments, the connector 2 and the heating body 1 are connected by an insertion joint, etc. No limitations are imposed here.

[0041] Optionally, in this embodiment, multiple connectors 2 are provided, such as one, two, three, or four, etc. No limitation is made here. It should be noted that in this embodiment, the connector 2 is a U-shaped tube.

[0042] Optionally, such as Figure 1 and Figure 3 As shown, in this embodiment, the heating element 3 is an electric heating rod. Electric heating rods have high thermal efficiency, high energy utilization, and are easy to install. In other embodiments, the heating element 3 can be a heating plate or a heating block, etc. No limitation is made here.

[0043] Optionally, in this embodiment, multiple heating elements 3 are provided, such as two, three, four, or five, etc. No limitation is imposed here.

[0044] Optionally, in this embodiment, the modular gas heating device further includes a controller and a temperature sensor. The temperature sensor is located at outlet 112 and is used to detect the temperature of the gas at outlet 112. Both the temperature sensor and the heating element 3 are electrically connected to the controller. The number of heating elements 3 that can be turned on can be adjusted according to the temperature at outlet 112, ensuring the controllability, stability, and accuracy of the gas temperature at outlet 112.

[0045] Specifically, in this embodiment, the controller is a programmable logic controller (PLC). In other embodiments, the controller may be a microcontroller, etc. No limitations are imposed here.

[0046] Specifically, in this embodiment, the temperature sensor is of a conventional structure. Any type of temperature sensor with a conventional structure can be used. Further details are omitted here.

[0047] Optionally, such as Figure 1 and Figure 3 As shown, a heating groove 12 is formed on the outer wall of the heating body 1, extending along the width direction of the heating body 1. The heating element 3 can be accommodated within the heating groove 12. The heating element 3 is connected to the heating body 1 through the heating groove 12, which saves space and allows for a tighter contact between the heating element 3 and the heating body 1, increasing the contact area between them and enabling the gas in the gas passage 11 to be heated quickly. The width direction of the heating body 1 is... Figure 1 The up and down direction in the middle, that is Figure 3 The up and down directions in the middle.

[0048] Specifically, such as Figure 1 and Figure 3 As shown, the heating groove 12 is a semi-cylindrical groove. In other embodiments, the heating groove 12 can also be a U-shaped groove, etc. No limitation is made here.

[0049] Specifically, such as Figure 1 and Figure 3 As shown, multiple heating grooves 12 are provided, and these grooves 12 are arranged at intervals along the length of the heating body 1. Multiple heating grooves 12 can accommodate more heating elements 3, thereby accelerating the heating rate of the gas in the gas channel 11. In this embodiment, eleven heating grooves 12 are provided. In other embodiments, ten, five, or twelve heating grooves 12 are provided, etc. No limitation is made here. The length direction of the heating body 1 is... Figure 1 The front and back directions in the middle, that is Figure 3 The front and back directions in the middle.

[0050] Optionally, such as Figure 1 and Figure 3 As shown, two adjacent heating bodies 1 are connected in series by a connector 2, and a heating element 3 is sandwiched within a heating groove 12 between two adjacent heating bodies 1 along the thickness direction of the heating body 1. The heating element 3 is sandwiched between two heating bodies 1, so that the heating element 3 is located within a cylindrical groove formed by two corresponding heating grooves 12. This not only fixes the heating element 3 but also allows the outer wall of the heating body 1 to fully contact the heating element 3, which is beneficial for structural stability and heat transfer. The thickness direction of the heating body 1 is... Figure 1 The left and right directions in the middle, that is Figure 3 The left and right directions in the middle.

[0051] Specifically, such as Figure 1 and Figure 3As shown, in this embodiment, the outer walls of two adjacent heating bodies 1 without heating grooves 12 are fitted together. When the outer walls of two adjacent heating bodies 1 without heating grooves 12 are fitted together, the cylindrical groove formed by the two corresponding heating grooves 12 further ensures that the outer wall of the heating body 1 is in full contact with the heating element 3.

[0052] Specifically, such as Figure 1 and Figure 3 As shown, in some embodiments, the modular gas heating device includes three heating bodies 1. Gas is introduced into the inlet 111 of the first heating body 1, the outlet 112 of the first heating body 1 is connected to the inlet 111 of the second heating body 1 via a first connector 2, and the outlet 112 of the second heating body 1 is connected to the inlet 111 of the third heating body 1 via a second connector 2. By connecting the three heating bodies 1 in series, the gas heating rate is improved.

[0053] Optionally, such as Figure 1 and Figure 3 As shown, the modular gas heating device also includes a clamping body 4, which can be fitted and connected to the heating body 1. The clamping body 4 serves as an auxiliary fixing structure, and its combination with the heating body 1 facilitates later maintenance, protects the heating body 1 from damage, and enhances the aesthetics of the modular gas heating device.

[0054] Specifically, such as Figure 1 and Figure 3 As shown, in this embodiment, two clamping bodies 4 are provided, and the two clamping bodies 4 are respectively arranged on both sides of the three series-connected heating bodies 1 along the thickness direction of the heating body 1. The clamping bodies 4 are provided on both sides of the three series-connected heating bodies 1, which further protects the heating body 1 and reduces the direct impact of external collisions and compression on the heating body 1.

[0055] Optionally, such as Figure 1 and Figure 3 As shown, in this embodiment, a heating groove 12 is provided on the outer wall of the heating body 1. The heating groove 12 extends along the width direction of the heating body 1. Along the thickness direction of the heating body 1, a clamping groove 41 is provided on the side of the clamping body 4 facing the heating body 1. The clamping groove 41 and the heating groove 12 are correspondingly arranged, and the heating element 3 can be clamped between the heating groove 12 and the clamping groove 41. By cooperating with the heating groove 12 and the clamping groove 41, the heating element 3 is fixed in a designated position, which not only ensures the installation stability of the heating element 3, but also limits the heating element 3 through the groove.

[0056] Specifically, such as Figure 1 and Figure 3As shown, multiple clamping grooves 41 are provided, and the multiple clamping grooves 41 are arranged at intervals along the length direction of the heating body 1. In this embodiment, eleven clamping grooves 41 are provided. In other embodiments, ten, five, or twelve clamping grooves 41 are provided, etc. There is no limitation here.

[0057] Specifically, such as Figure 1 and Figure 3 As shown, in this embodiment, the side of the clamping body 4 away from the heating body 1 along the thickness direction of the heating body 1 is a flat surface. In other embodiments, the side of the clamping body 4 away from the heating body 1 along the thickness direction of the heating body 1 may be a wavy surface, etc. No limitations are imposed here.

[0058] Optionally, the modular gas heating device also includes a clamping element that can clamp two clamping bodies 4 onto both sides of three heating bodies 1 connected in series, ensuring the stability of the fit of the heating bodies 1.

[0059] When replacing the heating element 3, the controller controls the heating element 3 to be de-energized. Then, the clamping bodies 4 on both sides of the three series-connected heating bodies 1 are removed. Then, the heating element 3 is taken out and a new heating element 3 is placed in the original position of the heating element 3. Then, the clamping bodies 4 are placed on both sides of the series-connected heating bodies 1 and locked. Finally, the controller controls the heating element 3 to be energized.

[0060] Example 2

[0061] This embodiment provides a modular gas heating device. Unlike Embodiment 1, this device has three heating bodies 1. Connectors 2 connect the outlet 112 of one heating body 1 to the inlets 111 of the other two heating bodies 1, forming a parallel connection. Heating elements 3 are sandwiched within heating grooves 12 of two adjacent heating bodies 1 along the thickness direction and are also housed within the heating grooves 12 of two adjacent heating bodies 1 along the width direction. After being heated by one heating body 1, the gas is diverted through its outlet 112 and connectors 2 into the other two heating bodies 1, enabling simultaneous heating of multiple gas streams, increasing the gas heating flow rate, and ensuring that the overall operation is not affected by the failure of a single heating body.

[0062] Specifically, in this embodiment, connector 2 is a tee. In other embodiments, connector 2 can also be a one-to-two splitter, etc. No limitations are imposed here.

[0063] Example 3

[0064] This embodiment provides a core-making machine, including a core-making body and a modular gas heating device, which is mounted on the core-making body. By using a modular gas heating device, the installation and replacement of the heating element 3 are simplified, the maintenance cycle is shortened, and maintenance costs are reduced.

[0065] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A modular gas heating device for heating gas, characterized in that, include: At least two heating bodies (1), the portions of two adjacent heating bodies (1) can be fitted together, each heating body (1) has a gas channel (11), and the same side of the heating body (1) has an inlet (111) and an outlet (112) communicating with the gas channel (11); A connector (2) is provided with a connection channel, and at least two heating bodies (1) are connected and communicated through the connector (2) so that the gas channels of each heating body (1) are interconnected. Heating element (3) can be disposed on the outer wall of the heating body (1).

2. The modular gas heating device according to claim 1, characterized in that, The heating body (1) has a heating groove (12) on its outer wall opposite to the heating body (1). The heating groove (12) extends along the width direction of the heating body (1), and the heating element (3) can be accommodated in the heating groove (12).

3. The modular gas heating device according to claim 2, characterized in that, Two adjacent heating bodies (1) are connected in series by the connector (2), and the heating element (3) is sandwiched in the heating groove (12) of two adjacent heating bodies (1) along the thickness direction of the heating body (1).

4. The modular gas heating device according to claim 2, characterized in that, The heating body (1) is provided in three parts. The connecting member (2) connects the outlet (112) of one heating body (1) and the inlet (111) of the other two heating bodies (1) respectively to form a parallel connection. The heating element (3) is sandwiched in the heating groove (12) of two adjacent heating bodies (1) along the thickness direction of the heating body (1), and the heating element (3) is accommodated in the heating groove (12) of two adjacent heating bodies (1) along the width direction of the heating body (1).

5. The modular gas heating device according to claim 2, characterized in that, The heating groove (12) is provided in multiple ways, and the multiple heating grooves (12) are arranged at intervals along the length direction of the heating body (1).

6. The modular gas heating device according to any one of claims 1-5, characterized in that, The gas channel (11) has a serpentine structure.

7. The modular gas heating device according to any one of claims 1-5, characterized in that, The modular gas heating device also includes: The clamping body (4) is able to fit and connect with the heating body (1).

8. The modular gas heating device according to claim 7, characterized in that, The outer wall of the heating body (1) is provided with a heating groove (12), which extends along the width direction of the heating body (1) and along the thickness direction of the heating body (1). The clamping body (4) is provided with a clamping groove (41) on the side facing the heating body (1). The clamping groove (41) and the heating groove (12) are correspondingly arranged, and the heating element (3) can be clamped between the heating groove (12) and the clamping groove (41).

9. The modular gas heating device according to any one of claims 1-5, characterized in that, The heating element (3) is an electric heating rod.

10. A core-making machine, characterized in that, It includes a core-making body and a modular gas heating device as described in any one of claims 1-9, wherein the modular gas heating device is disposed on the core-making body.

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