Heat exchange system of die, heating system for stamping equipment and stamping equipment

Abstract

The utility model discloses a heat exchange system of a die, a heating system for stamping equipment and the stamping equipment, the heat exchange system comprises a first heating device and a second heating device, the first heating device is arranged on a first die, and the second heating device is arranged on a second die; the first connector is arranged on the pressing machine moving workbench; the second connector is arranged on the upper table top of the pressing machine; when the mold is located at the first position, the second connector is suitable for being electrically connected with the first heating device to heat the first mold, and the first connector is suitable for being electrically connected with the second heating device to heat the second mold; when the mold is located at the second position, the first connector is suitable for electrically connecting the first heating device and the second heating device to heat the first mold and the second mold; the mold has the working modes of an online heating mode and an offline heating mode.

Description

Technical Field

[0001] The present application relates to the technical field of stamping die processing, and more particularly to a heat exchange system for a die, a heating system for a stamping device, and a stamping device. Background Art

[0002] Hot stamping forming technology utilizes the principle of metal thermoplastic forming and can simultaneously perform quenching heat treatment on the sheet metal during forming, improving the formability of the material. As a new forming technology and another effective way to highly strengthen stamping parts, hot stamping has broad application prospects in the automotive field. The hot stamping process usually uses a hot forming press in cooperation with a die. The die is provided with heating devices for heating and cooling water pipelines. The processing flow is to heat the blank to a certain temperature, and then use a stamping machine to perform stamping and pressure holding quenching in the corresponding die to obtain the required shape and simultaneously achieve the phase transformation of the metal material, which is a material forming method.

[0003] Currently, the processing flow of hot stamping usually places the die at the working position of the press table and then heats the die. Each heating time is very long. This process requires occupying the usage time of the press, and production cannot be carried out during the heating period. Although there are also ways to heat the die after leaving the working position of the press table in related technologies, their heating systems can only be applied to heating after leaving the working position of the press table and cannot be applied to heating the die when the die is at the working position of the press table.

[0004] Therefore, improvements are needed to at least partially solve the above problems. Summary of the Utility Model

[0005] A series of simplified concepts are introduced in the Summary of the Utility Model section, which will be further described in detail in the Detailed Implementation section. The Summary of the Utility Model section of the present utility model does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0006] To at least partially solve the above problems, according to the first aspect of the present utility model, there is provided a heat exchange system for a die. The die includes a first die and a second die located below the first die. The heat exchange system of the die includes:

[0007] A first heating device and a second heating device. The first heating device is disposed on the first die, and the second heating device is disposed on the second die;

[0008] A first connector, which is disposed on the moving worktable of the press;

[0009] A second connector, which is disposed on the upper surface of the press table;

[0010] When the mold is in the first position, the second connector is adapted to be electrically connected to the first heating device to heat the first mold, and the first connector is adapted to be electrically connected to the second heating device to heat the second mold;

[0011] When the mold is in the second position, the first connector is adapted to electrically connect the first heating device and the second heating device to heat the first mold and the second mold.

[0012] Exemplarily, it further includes: a first drag chain, the first drag chain is arranged outside the moving workbench of the press, and the moving end of the first drag chain is also mechanically connected to the moving workbench of the press, and the moving end of the first drag chain moves with the movement of the moving workbench of the press.

[0013] Exemplarily, it further includes: a first cable, one end of which is adapted to be electrically connected to the heating electrical cabinet, and the other end is adapted to be electrically connected to the first connector, wherein at least part of the first cable is disposed in the first drag chain.

[0014] Exemplarily, the first connector also communicates with the cooling water pipeline in the mold, and the system further includes:

[0015] A cooling water pipe, the cooling water pipe communicates with the first connector and is used to supply cooling water to the cooling water pipeline, and at least part of the cooling water pipe is disposed in the first drag chain.

[0016] Exemplarily, a supporting wheel is further arranged on the side of the first drag chain facing the ground.

[0017] Exemplarily, an electrical connection interface is arranged on the first connector, the first cable is adapted to be electrically connected to the electrical connection interface, and the electrical connection interface is adapted to be electrically connected to the first heating device and / or the second heating device.

[0018] Exemplarily, when the mold is below the upper table surface, the heating electrical cabinet supplies power to the second heating device through the first cable and the first connector to heat the second mold.

[0019] Exemplarily, the system further includes: a second cable,

[0020] The second connector and the heating electrical cabinet are electrically connected through the second cable to supply power to the first heating device to heat the first mold.

[0021] Exemplarily, a second cable carrier is further included, and the second cable carrier is disposed on the column of the press. Part of the second cable is threaded through the second cable carrier. The movable end of the second cable carrier is connected to the upper table surface of the press, and the movable end of the second cable carrier is configured to move along with the movement of the upper table surface.

[0022] Exemplarily, a third cable is further included, and the third cable is adapted to electrically connect the first connector to the first heating device and the second heating device.

[0023] Exemplarily, when the mold is in the second position, the third cable electrically connects the first heating device, the second heating device, and the first connector; or when the mold is in the first position, the third cable electrically connects the second heating device and the first connector.

[0024] Exemplarily, when the first mold is fixed to the upper table surface of the press, the second connector is adapted to be electrically connected to the first heating device to heat the first mold first; or when the second mold is outside the press and on the movable worktable of the press, the first connector is adapted to be electrically connected to the second heating device to heat the second mold first; or when the first mold is outside the press and on the movable worktable of the press, the first connector is adapted to be electrically connected to the first heating device to heat the first mold first.

[0025] According to a second aspect of the present invention, a heating system for a stamping device is provided, and the system includes:

[0026] A mold, the mold including a first mold and a second mold located below the first mold;

[0027] The heat exchange system as described above;

[0028] A heating electrical cabinet, the heating electrical cabinet being electrically connected to the first connector and / or the second connector.

[0029] According to a third aspect of the present invention, a stamping device is provided, including:

[0030] A press;

[0031] The heat exchange system of the mold as described above, or the heating system as described above.

[0032] Through the heat exchange system of the mold in this application, the heating system for the stamping equipment, and the stamping equipment, heating of the mold placed on the moving workbench of the press can be achieved. The moving workbench of the press can move and switch between the working area of the press (i.e., the first position) and outside the working area of the press (i.e., the second position), enabling the mold to have two working modes: the online heating mode (i.e., heating the mold in the working position of the press table) and the offline heating mode (i.e., heating after leaving the working position of the press table). By heating the hot stamping mold offline, it does not occupy the press usage time, saves the mold change time, and improves production efficiency. After the workbench moves online, heating can also be carried out according to the mold requirements to ensure stable product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The following drawings of this application are used as part of this application to understand this application. The embodiments of this application shown in the drawings and their descriptions are used to explain the device and principle of this application. In the drawings,

[0034] Figure 1 is a schematic diagram of the offline heating mode of the heat exchange system of the mold in this application.

[0035] Figure 2 is a schematic diagram of the online heating mode of the heat exchange system of the mold in this application.

[0036] Figure 3 is a schematic diagram of the structure of the first connector of the heat exchange system of the mold in this application.

[0037] Description of the reference numerals:

[0038] 100 - moving workbench of the press, 110 - press column, 120 - upper table surface, 130 - mold, 131 - first mold, 132 - second mold;

[0039] 200 - heating electrical cabinet, 210 - first connector, 211 - electrical connection interface, 212 - water inlet joint, 220 - first drag chain, 230 - first cable, 240 - second cable, 250 - second connector, 260 - second drag chain, 270 - third cable, 280 - fourth cable. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] In the following description, a large number of specific details are given to provide a more thorough understanding of this application. However, it is obvious to those skilled in the art that this application can be implemented without one or more of these details. In other examples, some technical features well known to the art are not described to avoid confusion with this application.

[0041] It should be understood that the present application can be implemented in different forms and should not be construed as limited to the embodiments presented herein. On the contrary, providing these embodiments will make the disclosure thorough and complete and will fully convey the scope of the present application to those skilled in the art. In the drawings, the dimensions and relative dimensions of layers and regions may be exaggerated for clarity. Like reference numerals throughout the drawings denote like elements.

[0042] It should be understood that although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer, or section from another element, component, region, layer, or section. Thus, a first element, component, region, layer, or section discussed below may be denoted as a second element, component, region, layer, or section without departing from the teachings of the present application.

[0043] Spatial relationship terms such as "under", "below", "beneath", "underneath", "above", "over", etc. may be used herein for convenience in describing the relationship of one element or feature to another element or feature shown in the figures. It should be understood that, in addition to the orientation shown in the figures, spatial relationship terms are intended to also include different orientations of the device in use and operation.

[0044] The purpose of the terms used herein is only to describe specific embodiments and is not a limitation of the present application. As used herein, the singular forms "a", "an", and "the" are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprising" and / or "including", when used in this specification, specify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. As used herein, the term "and / or" includes any and all combinations of the associated listed items.

[0045] Embodiments of the utility model are described herein with reference to cross-sectional views that are schematic illustrations of ideal embodiments (and intermediate structures) of the present application. As such, variations in the shapes shown, for example, due to manufacturing techniques and / or tolerances, can be expected. Accordingly, the embodiments of the present application should not be limited to the specific shapes shown herein, but rather include shape deviations due to, for example, manufacturing. Thus, the figures shown are substantially schematic in nature and their shapes are not intended to show the actual shape of the device and are not intended to limit the scope of the present application.

[0046] The present application provides a heat exchange system for a mold, which can be applied to a stamping device. The stamping device may include the heat exchange system for the mold in the embodiments of the present application (to be described below), or a heating system and a press. The press is used for heating the mold 130 before stamping or during stamping. The press includes a press moving workbench 100, press columns 110, and an upper table 120. Among them, the press moving workbench 100 is used to place the mold 130, and the upper table 120 can be lifted under the action of a lifting member such as a cylinder. The area surrounded by the press moving workbench 100, the press columns 110, and the upper table 120 is the press working area. When the press is working, the press moving workbench 100 is located in the press working area. The ground under the upper table 120 and the ground near the press may be provided with tracks for the movement of the press moving workbench 100. One side of the press moving workbench 100 close to the track is provided with rollers or sliders that cooperate with the track, so that the press moving workbench 100 can move and switch between the press working area (which can also be referred to as the press working position in this article) and the outside of the press working area under the action of a driving member. The driving member can be an electric push rod, a linear motor, etc., and will not be described in detail here. The device for heating the mold 130 has an on-line heating mode and an off-line heating mode. When in the on-line heating mode, the press moving workbench 100 is located in the press working area, and the system heats the mold 130 located in the press working area. When in the off-line heating mode, the press moving workbench 100 moves along the track to the outside of the press working area, and the system heats the mold 130 located outside the press working area.

[0047] Refer to the attached Figure 1-2 An exemplary description is given of a heat exchange system for a mold according to an embodiment of the present application. The mold includes a first mold 131 and a second mold 132 located below the first mold. The heat exchange system of the mold includes a first heating device, a second heating device, a first connector 210, and a second connector 250.

[0048] The heating electrical cabinet 200, as a power distribution device, is used to provide electrical energy. Multiple groups of sockets are provided on the heating electrical cabinet 200 for connecting cable plugs to facilitate power transmission. The heating electrical cabinet 200 is integrated with a PLC system and a control switch electrically connected to the PLC system. The PLC system controls the opening and closing of the heating electrical cabinet 200 according to the signal of the control switch, and further controls the opening and closing of the heating device.

[0049] The first connector 210 is disposed on the moving workbench 100 of the press. Preferably, it can be installed on the front surface of the moving workbench 100 of the press to facilitate the wire insertion operation. Or in other embodiments, it can also be installed on the side surface of the moving workbench 100 of the press or other suitable positions. In an embodiment of the present application, an electrical connection interface 211 is further provided on the first connector 210. For example, the electrical connection interface 211 is adapted to be electrically connected to the heating device in the mold 130 for realizing the electrical energy transfer from the electrical connection interface 211 to the heating device. In an embodiment of the present application, the first connector 210 can be a aviation plug integrated module, on which a plurality of aviation plug interfaces are integrated as the electrical connection interfaces 211 for realizing signal transfer and electrical energy transfer. Specifically, the first connector 210 also communicates with the cooling water pipeline in the mold. The system further includes a cooling water pipe, and the cooling water pipe communicates with the first connector 210 for supplying cooling water to the cooling water pipeline. For example, a water inlet joint 212 communicating with the cooling water pipeline in the mold 130 is provided on the aviation plug integrated module such as the first connector 210, so that the external cooling water can flow into the cooling water pipeline in the mold 130 through the water inlet joint. It should be noted that the cooling water pipeline in the mold 130 is embedded in the mold 130, and the mold 130 is cooled by the cooling water flowing into the cooling water pipeline. The first connector 210 uses an aviation plug integrated module as the electromechanical component for connecting the electrical circuit, with good voltage resistance performance and can effectively improve the safety performance.

[0050] The heating device is disposed in the mold 130 for realizing the conversion of electrical energy into heat energy. In an embodiment of the present application, the heating device uses an electric heating rod bent in a snake shape for multiple times, and the snake-shaped electric heating rod is embedded inside the mold 130. After being powered on, the electric heating rod heats up and conducts heat to the mold 130, thereby realizing the heating of the material on the mold 130. In some other embodiments, those skilled in the art can make other settings for the type and quantity of the heating device according to the actual situation. For example, the heating device can be a heating wire or a heating plate, and the quantity of the heating wire or the heating plate can be set to be multiple, and multiple heating wires or heating plates are embedded inside the mold 130.

[0051] In some embodiments, in order to supply water to the cooling water pipeline in the mold 130, one end of the cooling water pipe communicates with the water supply device, and the other end of the cooling water pipe communicates with the water inlet joint 212 on the first connector 210. Specifically, the water supply device can use a chiller, which is used to supply cooling water to the cooling water pipe after the material is stamped and formed, that is, the cooling water from the chiller can enter the cooling water pipeline in the mold 130 through the cooling water pipe and the water inlet joint 212 to cool the mold 130 and the material stamped and formed thereon.

[0052] To protect the cooling water pipe and the first cable 230, the device for heating the mold 130 in the present application further includes a first drag chain 220. The first drag chain 220 is arranged outside the press moving workbench 100. For example, the first drag chain 220 is arranged on the ground outside the press moving workbench 100, and the mobile end of the first drag chain 220 is also mechanically connected to the press moving workbench 100. The mobile end of the first drag chain 220 moves with the movement of the press moving workbench 100. The first drag chain 220 includes a mobile end and a fixed end. Specifically, the fixed end of the first drag chain 220 is connected to the ground outside the press moving workbench 100 by a connection method such as anchoring connection, and the mobile end of the first drag chain 220 is connected to the first connector 210 by a connection method such as snap connection, bolt connection, or riveting connection. For example, the first connector 210 has a protective cover body, and both the electrical connection interface 211 and the water inlet joint 212 are fixed on the protective cover body. Moreover, an entrance and exit (i.e., Figure 3 the corresponding entrance of the drag chain in

[0053] In the embodiment of the present application, a support wheel (not shown in the figure) is further arranged on the side of the first drag chain 220 facing the ground. The support wheel can be selected from multiple wheel body structures such as universal wheels and rollers. The support wheel contacts the ground and can assist the movement of the first drag chain 220 to avoid the first drag chain 220 getting stuck when moving (for example, avoiding the first drag chain 220 being stuck by the track of the press moving workbench 100).

[0054] The first cable 230 is adapted at one end to be electrically connected to the heating electrical cabinet 200 and at the other end to be electrically connected to the first electrical connector 210. Specifically, the two ends of the first cable 230 are respectively provided with a first plug that matches the socket on the heating electrical cabinet 200 and a second plug that matches the electrical connection interface, so that the first plug and the second plug are respectively plugged into the socket and the electrical connection interface on the heating electrical cabinet 200, realizing the power transmission from the heating electrical cabinet 200 to the first cable 230, the electrical connection interface 211, and the heating rod in sequence, thereby realizing the heating of the mold 130. At least a part of the first cable 230 is disposed in the first drag chain 220, and at least a part of the cooling water pipe is disposed in the first drag chain 220. For example, a part of the cooling water pipe and the first section of the first cable 230 are disposed in the first drag chain 220. Specifically, the parts of the cooling water pipe and the first cable 230 close to the press moving workbench 100 are disposed in the first drag chain 220. The cooling water pipe and the first cable 230 are uniformly arranged and fixedly limited in the first drag chain 220. It should be noted that the cooling water pipe and the first cable 230 are separately disposed in the first drag chain 220, and different types of pipelines are separated and orderly arranged in the first drag chain 220 to avoid entanglement. When the device switches between the online heating mode and the offline heating mode, that is, when the press moving workbench 100 moves and switches between the press working area and the outside of the press working area, the first drag chain 220 moves with the movement of the press moving workbench 100, and can realize the traction and protection of the cooling water pipe and the first cable 230 arranged inside it.

[0055] In the embodiment of the present application, one end of the first section of the first cable 230 is used to connect the electrical connection interface 211, the other end of the first section of the first cable 230 is connected to one end of the second section of the first cable 230, and the other end of the second section of the first cable 230 is connected to the heating electrical cabinet 200. The second section of the first cable 230 is also laid in a preset pit. The preset pit is arranged on the ground near the press. The cable (the second section of the first cable 230) between the heating electrical cabinet 200 and the press is laid through the preset pit, and the cable is not exposed, which can not only protect the cable, but also make the cable arrangement in the operation environment neat and enhance the safety.

[0056] In the embodiment of the present application, the mold 130 includes a first mold 131 and a second mold 132 below the first mold 131. A first clamping member and a second clamping member are respectively arranged on opposite sides of the upper table surface 120 of the press and the moving workbench 100 of the press. The first clamping member and the second clamping member respectively detachably connect the first mold 131 and the second mold 132 to the upper table surface 120 of the press and the moving workbench 100 of the press. When the device is in the online heating mode, the first mold 131 is fixed to the side of the upper table surface 120 of the press close to the moving workbench 100 of the press by the first clamping member, and the second mold 132 is fixed to the side of the moving workbench 100 of the press close to the upper table surface 120 of the press by the second clamping member; when the device is in the offline heating mode, the moving workbench 100 of the press moves along the track to the outside of the working area of the press, and both the first mold 131 and the second mold 132 are placed on the moving workbench 100 of the press and are located outside the working area of the press together with the moving workbench 100 of the press. Specifically, the first clamping member can be used to clamp the first mold 131 and the second mold 132, which is convenient for realizing offline heating. In the embodiment of the present application, the heating device includes a first heating device located in the first mold 131 and a second heating device located in the second mold 132. Specifically, the first heating device and the second heating device are respectively embedded inside the first mold 131 and the second mold 132. The first heating device and the second heating device respectively adopt a first electric heating rod and a second electric heating rod that are bent in a snake shape after multiple bends. After being powered on, the first electric heating rod located in the first mold 131 can conduct heat to the first mold 131 when it heats up, and the second electric heating rod located in the second mold 132 can conduct heat to the second mold 132 when it heats up, thereby realizing the heating of the mold 130.

[0057] In the embodiment of the present application, the second connector 250 is disposed on the upper table surface 120 of the press, for example, installed on the front surface of the upper table surface 120 of the press, so as to facilitate the wire insertion operation. The second connector 250 can also be a aviation plug integrated module, on which a plurality of aviation plug interfaces are integrated as electrical connection interfaces for signal transmission. When the mold 130 is located below the upper table surface 120, that is, when the device is in the online heating mode, the second connector 250 is adapted to be electrically connected to the first heating device to heat the first mold 131, and the first connector 210 is adapted to be electrically connected to the second heating device to heat the second mold 132. Specifically, the heating electrical cabinet 200 supplies power to the second heating device through the first cable 230 and the first connector 210 to heat the second mold 132, and the heating electrical cabinet 200 supplies power to the first heating device through the second cable 240 and the second connector 250 to heat the first mold 131. More specifically, the first cable 230 is a cable for realizing the electrical connection between the heating electrical cabinet 200 and the first connector 210. The two ends of the first cable 230 are respectively provided with a first plug matching the socket on the heating electrical cabinet 200 and a second plug matching the electrical connection interface 211, so that the first plug and the second plug are respectively plugged into the socket on the heating electrical cabinet 200 and the electrical connection interface 211, realizing the power transmission from the heating electrical cabinet 200 to the first cable 230, the electrical connection interface 211, and the second heating device in sequence, thereby realizing the heating of the second mold 132. Specifically, the second connector 250 is adapted to be electrically connected to the first heating device, and the heating electrical cabinet 200 is electrically connected to the second connector 250 through the second cable 240. More specifically, the second cable 240 is a cable for realizing the electrical connection between the heating electrical cabinet 200 and the second connector 250. The two ends of the second cable 240 are respectively provided with a third plug matching the socket on the heating electrical cabinet 200 and a fourth plug matching the interface on the second connector 250, so that the third plug and the fourth plug are respectively plugged into the socket on the heating electrical cabinet 200 and the aviation plug interface on the second connector 250, realizing the power transmission from the heating electrical cabinet 200 to the second cable 240, the second connector 250, and the first heating device in sequence, thereby realizing the heating of the first mold 131. When the mold is located outside the press and on the moving workbench 100 of the press, the first connector 210 is adapted to electrically connect the first heating device and the second heating device to heat the first mold 131 and the second mold 132. In an embodiment of the present application, the device for heating the mold 130 further includes a second drag chain 260, which is disposed on the press column 110.The second drag chain 260 includes a moving end and a fixed end. Specifically, the fixed end of the second drag chain 260 is connected to the press column 110 by a connection method such as bolt connection or riveting, and the moving end of the second drag chain 260 is connected to the press upper table 120 by a connection method such as bolt connection or riveting. The moving end of the second drag chain 260 is configured to move with the movement of the second connector 250 when the press upper table 120 is lifted and lowered to drive the second connector 250 to lift and lower. In some other embodiments, the moving end of the second drag chain 260 can also be connected to the second connector 250. In the embodiment of the present application, part of the second cables 240 are inserted into the second drag chain 260, which are evenly arranged and fixedly limited in the second drag chain 260. When the press upper table 120 is lifted and lowered, the second cables 240 arranged inside it can be towed and protected. In addition, part of the second cable 240 is also laid in a preset pit, which is set on the ground near the press. Part of the second cable 240 is laid through the preset pit, and the cable is not exposed, which can not only protect the cable, but also make the cable arrangement in the operating environment neat, thereby enhancing safety.

[0058] In the embodiment of the present application, the third cable 270 is suitable for electrically connecting the electrical connection interface of the first connector 210 with the heating device. The number of the third cables 270 can be one or more. For example, the two ends of the third cable 270 are respectively provided with a fifth plug matching the electrical connection interface and a sixth plug matching the heating device (that is, matching the power supply interface of the heating device), so that the fifth plug and the sixth plug are electrically connected to the electrical connection interface and the heating device, respectively, wherein the number of the sixth plug can be multiple, wherein at least one sixth plug can be used to electrically connect the first heating device, and at least one sixth plug can be used to electrically connect the second heating device, so as to realize power transmission from the electrical connection interface to the heating device. When the mold 130 is located outside the press and on the movable workbench of the press, that is, when the device is in the offline heating mode, the first mold 131 and the second mold 132 are both located above the movable workbench 100 of the press and outside the working area of ​​the press, and the third cable 270 is used to electrically connect the first heating device, the second heating device and the electrical connection interface. When the mold 130 is located below the upper table 120 of the press, that is, when the device is in the online heating mode, the first mold 131 and the second mold 132 are respectively located on the upper table 120 of the press and the movable workbench 100 of the press, and are located in the working area of ​​the press, and the third cable 270 is electrically connected to the second heating device and the electrical connection interface.

[0059] In some embodiments, the device for heating the mold 130 further includes a fourth cable 280, and the fourth cable 280 is adapted to electrically connect the electrical connection interface of the second connector 250 to the first heating device of the first mold 131. Specifically, the two ends of the fourth cable 280 are respectively provided with a seventh plug matching the electrical connection interface and an eighth plug matching the first heating device, so that the seventh plug and the eighth plug are respectively electrically connected to the electrical connection interface of the second connector 250 and the first heating device, realizing power transmission from the electrical connection interface to the first heating device, thereby realizing the heating of the first mold 131.

[0060] When the present system is applied to the online heating mode or the offline heating mode, those skilled in the art can heat the first mold 131 and the second mold 132 simultaneously, or can set the heating sequence of the first mold 131 or the second mold 132 according to actual practical requirements. For example, when the first mold 131 is fixed to the upper table surface 120 of the press, the second connector 250 is adapted to be electrically connected to the first heating device to heat the first mold 131 first; or, when the second mold 132 is located outside the press and on the moving workbench 100 of the press, the first connector 210 is adapted to be electrically connected to the second heating device to heat the second mold 132 first; or, when the first mold 131 is located outside the press and on the moving workbench 100 of the press, the first connector 210 is adapted to be electrically connected to the first heating device to heat the first mold 131 first. When the present system is used in the online heating mode, the mold is in the first position, the second connector 250 is adapted to be electrically connected to the first heating device to heat the first mold 131, and the first connector 210 is adapted to be electrically connected to the second heating device to heat the second mold 132. Specifically, as Figure 2As shown, the mold is located on the moving workbench 100 of the press and within the first position (e.g., the press working area below the upper table of the press). The first mold 131 and the second mold 132 are respectively limited to opposite sides of the upper table 120 of the press and the moving workbench 100 of the press. When the user presses the control switch, the PLC system receives the start signal and controls the heating electrical cabinet 200 to open. At this time, the heating electrical cabinet 200 supplies power to the second heating device through the first cable 230, the first connector 210, and the third cable 270 to heat the second mold 132, and supplies power to the first heating device through the second cable 240, the second connector 250, and the fourth cable 280 to heat the first mold 131. After the first mold 131 and the second mold 132 are heated, the heating electrical cabinet 200 is controlled to close through the control switch, and then the upper table 120 of the press is controlled by the lifting member to drive the first mold 131 to stamp the high-temperature material on the second mold 132. After stamping is completed, the cooling water from the chiller is controlled to enter the cooling water pipeline through the cooling water pipe and the water inlet joint to cool the mold 130 and the material. When this system is used in the offline heating mode, the mold is located in the second position. The first connector 210 is adapted to electrically connect the first heating device and the second heating device to heat the first mold 131 and the second mold 132. Specifically, as Figure 1 shown, the mold is located on the moving workbench 100 of the press and in the second position (e.g., outside the press working area). The first mold 131 and the second mold 132 are both placed on the moving workbench 100 of the press. When the user presses the control switch, the PLC system receives the start signal and controls the heating electrical cabinet 200 to open. At this time, the third cable 270 is used to electrically connect the first heating device, the second heating device, and the electrical connection interface. The heating electrical cabinet 200 supplies power to the first heating device and the second heating device respectively through the first cable 230, the first connector 210, and the third cable 270 to heat the first mold 131 and the second mold 132. After the first mold 131 and the second mold 132 are heated, after the hot stamping process of the mold 130 below the press is completed, the mold 130 that has been heated offline can be directly moved to the lower side of the press. By heating the mold 130 offline, another set of molds 130 can be heated while the press is in production, without occupying the press usage time, saving the mold change time, and improving production efficiency.

[0061] The embodiment of the present application further provides a heating system for a stamping device, which includes: a mold 130, the mold 130 includes a first mold 131 and a second mold 132 located below the first mold 131;

[0062] The heat exchange system as described above;

[0063] A heating electrical cabinet 200, the heating electrical cabinet is electrically connected to the first connector 210 and / or the second connector 250.

[0064] The embodiment of the present application also provides a stamping device, which includes: a press;

[0065] The heat exchange system of the mold as described above, or the heating system as described above.

[0066] Through the heat exchange system of the mold of the present application, the heating system for the stamping device, and the device for heating the mold by the stamping device, the heating of the first mold placed on the movable workbench of the press can be realized. The movable workbench of the press can move and switch between the working area of the press and outside the working area of the press, so that the mold has two working modes: an online heating mode and an offline heating mode. By heating the hot stamping mold offline, it does not occupy the use time of the press, saves the mold change time, and improves the production efficiency. After the workbench moves online, it can also be heated according to the mold requirements to ensure the stable product quality; moreover, a part of the cooling water pipe and the first section of the first cable are arranged in the first drag chain, which can realize the traction and protection of the cooling water pipe and the first cable arranged inside it, effectively ensuring safety. Although the exemplary embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above exemplary embodiments are merely exemplary and are not intended to limit the scope of the present application. Those of ordinary skill in the art can make various changes and modifications therein without departing from the scope and spirit of the present application. All such changes and modifications are intended to be included within the scope of the present application as claimed in the appended claims.

[0067] In the specification provided herein, a large number of specific details are set forth. However, it can be understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures, and technologies have not been shown in detail so as not to obscure the understanding of this specification.

[0068] Similarly, it should be understood that, in order to streamline the present application and assist in understanding one or more of the various inventive aspects, in the description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, the method of the present application should not be construed as reflecting the intention that the claimed present application requires more features than those expressly recited in each claim. Rather, as reflected by the corresponding claims, the inventive point lies in that the corresponding technical problems can be solved by features less than all the features of a single disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into the detailed description, where each claim itself serves as a separate embodiment of the present application.

[0069] Those skilled in the art will appreciate that, except where features are mutually exclusive, any combination can be employed of all the features disclosed in this specification (including the accompanying claims, abstract and drawings), as well as of all the processes or units of any method or apparatus so disclosed. Each feature disclosed in this specification (including the accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

[0070] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not others, combinations of features of different embodiments are meant to be within the scope of this application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0071] It should be noted that the above embodiments are illustrative of the application and not restrictive thereof, and that alternative embodiments can be designed by those skilled in the art without departing from the scope of the appended claims.

Claims

1. A heat exchange system for a mold, characterized in that: The mold includes a first mold and a second mold located below the first mold, and the heat exchange system of the mold includes: a first heating device and a second heating device, wherein the first heating device is disposed on the first mold, and the second heating device is disposed on the second mold; A first connector, the first connector being disposed on a movable workbench of a press; a second connector, the second connector being disposed on an upper surface of the press; When the mold is located at the first position, the second connector is adapted to be electrically connected to the first heating device to heat the first mold, and the first connector is adapted to be electrically connected to the second heating device to heat the second mold; When the mold is located at the second position, the first connector is adapted to electrically connect the first heating device and the second heating device to heat the first mold and the second mold.

2. The system according to claim 1, characterized in that Also includes: The first drag chain is arranged outside the movable workbench of the press, and the movable end of the first drag chain is also mechanically connected to the movable workbench of the press, and the movable end of the first drag chain moves with the movement of the movable workbench of the press.

3. The system according to claim 2, characterized in that Also includes: A first cable, one end of which is suitable for electrically connecting to a heating cabinet, and the other end of which is suitable for electrically connecting to the first connector, wherein at least a portion of the first cable is passed through the first drag chain.

4. The system according to claim 2, characterized in that The first connector is also connected to a cooling water pipeline in the mold, and the system further includes: A cooling water pipe is connected to the first connector and is used to provide cooling water to the cooling water pipeline. At least a portion of the cooling water pipe is passed through the first drag chain.

5. The system according to claim 2, characterized in that A support wheel is also provided on the side of the first drag chain facing the ground.

6. The system according to claim 3, characterized in that The first connector is provided with an electrical connection interface, the first cable is suitable for being electrically connected to the electrical connection interface, and the electrical connection interface is suitable for being electrically connected to the first heating device and / or the second heating device.

7. The system according to claim 6, characterized in that When the mold is located below the upper table, the heating electric cabinet supplies power to the second heating device through the first cable and the first connector to heat the second mold.

8. The system of claim 1, wherein: The system further comprises: a second cable, The second connector and the heating cabinet are electrically connected via the second cable to supply power to the first heating device to heat the first mold.

9. The system according to claim 8, characterized in that It also includes a second drag chain, which is arranged on the column of the press, wherein part of the second cable is passed through the second drag chain, the moving end of the second drag chain is connected to the upper table of the press, and the moving end of the second drag chain is configured to move with the movement of the upper table.

10. The system according to claim 1, wherein: Also included is a third cable adapted to electrically connect the first connector with the first heating device and the second heating device.

11. The system according to claim 10, characterized in that When the mold is located at the second position, the third cable electrically connects the first heating device, the second heating device and the first connector; or when the mold is located at the first position, the third cable electrically connects the second heating device and the first connector.

12. The system of claim 1, wherein: When the first mold is fixed on the upper table of the press, the second connector is suitable for being electrically connected to the first heating device to heat the first mold first; or, when the second mold is located outside the press and on the movable worktable of the press, the first connector is suitable for being electrically connected to the second heating device to heat the second mold first; or, when the first mold is located outside the press and on the movable worktable of the press, the first connector is suitable for being electrically connected to the first heating device to heat the first mold first.

13. A heating system for stamping equipment, characterized in that: The system comprises: A mold, the mold comprising a first mold and a second mold located below the first mold; The heat exchange system according to any one of claims 1 to 12; A heating electric cabinet is electrically connected to the first connector and / or the second connector.

14. A stamping device, characterized in that: include: press; A heat exchange system for a mold as claimed in any one of claims 1 to 12, or a heating system as claimed in claim 13.

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