Hot plate device and pressing equipment

Abstract

The utility model discloses a hot plate device and pressing equipment, the hot plate device comprises a hot plate body and a pipeline mechanism, the hot plate body is provided with multiple fluid channels, the multiple fluid channels are distributed at intervals in the length extension direction of the hot plate body, each fluid channel comprises a first flow channel and a second flow channel, and the first flow channel is communicated with the second flow channel; the first flow channel and the second flow channel are respectively distributed at intervals along the thickness extension direction of the hot plate body, the first flow channel is provided with a first liquid inlet and a first liquid outlet, the second flow channel is provided with a second liquid inlet and a second liquid outlet, and the first liquid outlet is communicated with the second liquid inlet; the inflow distributor is connected with the first liquid inlets, and the outflow distributor is connected with the second liquid outlets. The cooling medium with the equivalent temperature flows through the multiple parallel fluid channels at the same time, and the passing paths of the cooling medium are greatly reduced, so that the temperature of the hot plate body is uniform, the plate quality is improved, and the machining efficiency is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of pressing equipment, and in particular to a hot plate device and pressing equipment. Background Art

[0002] The laminating machine is usually composed of a frame, a hydraulic system, a hot plate system, a vacuum system, a cooling system, an electronic control system and other components. During the working process, after the PCB high-frequency board is stacked, it is sent to the laminating machine station by a mobile trolley, and then sent to the machine cavity of the laminating machine by a push-pull cylinder. The electronic control system automatically pressurizes, heats up and evacuates according to the process parameters required for laminating. After reaching the set pressure and temperature, it is kept warm and pressurized for a certain period of time, and then the pressure is released to remove the vacuum, and then the temperature is gradually reduced to cool to room temperature, and the product is pressed. Among them, the hot plate is one of the core components of hot pressing, and its temperature control directly affects the quality of the PCB high-frequency board. The cooling stage of the hot plate is the key. Considering the thermal expansion and contraction of the hot plate material and the high-temperature gasification expansion of the cooling water, when the hot plate is between 480℃ and 250℃, it is cooled by compressed gas through the cooling channel, and between 250℃ and 90℃, it is cooled by water mist mixing, and directly cooled by softened water from 90℃ to room temperature.

[0003] In the prior art, during the cooling stage of the hot plate, the cooling gas enters the inside of the hot plate from the air inlet of the hot plate, passes through the cooling channel, and gradually realizes heat exchange to cool the hot plate. However, as the passage path of the cooling gas is extended, the cooling gas is gradually heated and the cooling capacity decreases. The cooling effect is worse near the exhaust port end of the hot plate, resulting in uneven temperature of the entire hot plate. The temperature at the air inlet end of the hot plate is low, and the temperature at the exhaust port end is high. The larger the format size of the hot plate, the more obvious the temperature difference between the two ends will be. The temperature difference will directly cause uneven temperature of the PCB high-frequency board, thereby reducing the quality of the PCB high-frequency board and affecting the processing efficiency. Utility Model Content

[0004] In order to overcome the problems existing in the above-mentioned prior art, the main purpose of the present application is to provide a hot plate device and a pressing device that can reduce the temperature difference of the hot plate to improve the quality of the PCB board.

[0005] In order to achieve the above objectives, this application specifically adopts the following technical solutions:

[0006] A hot plate device, comprising:

[0007] A heat plate body, wherein the heat plate body is provided with a plurality of fluid channels, wherein the plurality of fluid channels are spaced apart along the length extension direction of the heat plate body, each of the fluid channels comprises a first channel and a second channel, wherein the first channel and the second channel are spaced apart along the thickness extension direction of the heat plate body, and the first channel is provided with a first liquid inlet and a first liquid outlet, and the second channel is provided with a second liquid inlet and a second liquid outlet, and the first liquid outlet is connected to the second liquid inlet;

[0008] A pipeline mechanism, wherein the pipeline mechanism comprises an inlet distributor and an outlet distributor, wherein the inlet distributor is connected to each of the first liquid inlets respectively, and the outlet distributor is connected to each of the second liquid outlets respectively.

[0009] In some embodiments, the first liquid inlet and the first liquid outlet are respectively located at two ends of the first flow channel, the second liquid inlet and the second liquid outlet are respectively located at two ends of the second flow channel, and the fluid channel also includes a connecting flow channel, which extends along the thickness extension direction of the hot plate body, and one end of the connecting flow channel is connected to the first liquid outlet, and the other end of the connecting flow channel is connected to the second liquid inlet.

[0010] In some embodiments, in the same fluid channel, the first liquid inlet and the second liquid outlet are respectively located on the same side of the hot plate body.

[0011] In some embodiments, each of the first liquid inlets is located at a same side of the hot plate body, and each of the second liquid outlets is located at a same side of the hot plate body.

[0012] In some embodiments, the heat plate body is further provided with a plurality of installation cavities, and the plurality of installation cavities and the plurality of fluid channels are respectively distributed at staggered intervals along the length extension direction of the heat plate body. The heat plate device also includes a plurality of heating tubes, and each of the heating tubes is respectively arranged in each of the installation cavities.

[0013] In some embodiments, the inlet distributor comprises a first inlet pipe, a first pipeline and a plurality of first outlet pipes, one end of the first inlet pipe is connected to the first pipeline, the other end of the first inlet pipe is used to connect to a fluid supply device, one end of each of the first outlet pipes is respectively connected to the first pipeline, and the other end of each of the first outlet pipes is respectively connected to each of the first liquid inlets;

[0014] The outflow distributor includes a plurality of second inlet pipes, second pipes and second outlet pipes, one end of each second inlet pipe is respectively connected to each second liquid outlet, the other end of each second inlet pipe is respectively connected to the second pipe, and the second outlet pipe is connected to the second pipe.

[0015] In some embodiments, the second outlet pipe is provided with an inlet end and an outlet end, the inlet end is connected to the second pipeline, and along the thickness extension direction of the hot plate body, the inlet end is higher than the outlet end.

[0016] In some embodiments, the pipeline mechanism further includes a valve body assembly, wherein the valve body assembly is connected to the first inlet pipe and is used to control the flow rate of the fluid entering the first inlet pipe.

[0017] In some embodiments, the valve body assembly includes a filter, a pressure reducing valve and a throttle valve, the filter is connected to the first inlet pipe, and is used to filter impurities in the fluid entering the first liquid inlet, the pressure reducing valve is connected to the first inlet pipe, and is used to adjust the pressure in the first inlet pipe, and the throttle valve is connected to the first inlet pipe, and is used to control the flow rate of the fluid entering the first inlet pipe.

[0018] A pressing device comprises a frame, a driving assembly, a pressing part, a movable part and a hot plate device as described in any one of the above, wherein the hot plate device is mounted on the frame, the pressing part is arranged on the frame and located on one side of the hot plate device, the movable part is arranged on the frame and located on the side of the hot plate device facing away from the pressing part, and the driving assembly is connected to the movable part.

[0019] Compared with the prior art, the hot plate device provided by the present application has at least the following beneficial effects:

[0020] The heat plate body of the present application is provided with a plurality of fluid channels, the inlet distributor is respectively connected to the first liquid inlet of each fluid channel, and the outlet distributor is respectively connected to the second liquid outlet of each fluid channel. When working, the cooling medium can enter the interior of the heat plate body from the first liquid inlet of each fluid channel through the inlet distributor at the same time, and then flow out from the second liquid outlet of each fluid channel through the outlet distributor at the same time. The cooling medium with the same temperature circulates through a plurality of parallel fluid channels at the same time, which greatly reduces the passage path of the cooling medium and effectively avoids the temperature difference problem at the inlet and outlet of the cooling medium, thereby making the temperature of the heat plate body uniform, improving the quality of the plate and ensuring the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of the pressing device provided in the embodiment of the present application from an axial perspective;

[0022] Figure 2 A schematic diagram of the structure of a lamination device provided in an embodiment of the present application from a front view;

[0023] Figure 3 A schematic diagram of a perspective structure of a hot plate device provided in an embodiment of the present application from a top view;

[0024] Figure 4 for Figure 3 Cross-sectional view at AA in the middle;

[0025] Figure 5 A schematic diagram of the structure of a hot plate device provided in an embodiment of the present application from a front view;

[0026] Figure 6 A schematic diagram of a cross-sectional structure of a lamination device provided in an embodiment of the present application;

[0027] Figure 7 A schematic diagram of the structure of an inlet distributor of a hot plate device provided in an embodiment of the present application;

[0028] Figure 8 A schematic diagram of the structure of the outflow distributor of the hot plate device provided in an embodiment of the present application;

[0029] Fig. 9 A schematic structural diagram of a front view of an outflow distributor of a hot plate device provided in an embodiment of the present application;

[0030] Fig.10 A schematic diagram of the piping mechanism of the hot plate device provided in an embodiment of the present application.

[0031] Reference numerals:

[0032] 1. Hot plate body; 11. Fluid channel; 110. First flow channel; 110a. First liquid inlet; 110b. First liquid outlet; 111. Second flow channel; 111a. Second liquid inlet; 111b. Second liquid outlet; 12. Connecting flow channel; 13. Mounting cavity;

[0033] 2. Pipeline mechanism; 21. Inlet distributor; 210. First inlet pipe; 211. First pipeline; 212. First outlet pipe; 22. Outlet distributor; 220. Second inlet pipe; 221. Second pipeline; 222. Second outlet pipe; 222a. Inlet end; 222b. Outlet end; 23. Liquid inlet pipe; 24. Liquid inlet branch pipe; 25. Air inlet pipe; 26. Air inlet branch pipe; 27. Outlet main pipe; 28. Valve body assembly; 280. Filter; 281. Pressure reducing valve; 282. First two-way valve; 283. Second two-way valve; 284. Throttle valve; 285. First check valve; 286. Second check valve;

[0034] 100. Pressing equipment; 101. Frame; 102. Hot plate device. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0036] In the description of this application, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more, and the term "multiple" refers to two or more; the terms "connected", "fixed", etc. should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In the description of this specification, it should be understood that the directional words such as "upper" and "lower" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0038] Reference Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the structure of the pressing device provided in the embodiment of the present application from an axial perspective. Figure 2 A schematic structural diagram of a front view of a laminating device provided in an embodiment of the present application. This embodiment discloses a laminating device 100 for laminating stacked materials to form a desired sheet material, such as a copper-clad laminate formed by hot pressing copper foil with a polytetrafluoroethylene (full name in English: Polytetrafluoroethylene, abbreviated as: PTFE) plate as a substrate. The laminating device 100 includes a frame 101, a driving assembly, a laminating member, a movable member, and a hot plate device 102. The hot plate device 102 includes a plurality of hot plate bodies 1, and the plurality of hot plate bodies 1 are respectively arranged on the frame 101 and are spaced apart along the height extension direction of the frame 101 to form a plurality of laminating layers, and the stacked materials are placed on the laminating layers. The laminating member is arranged on the frame 101 and is located on one side of the plurality of hot plate bodies 1. The movable member is arranged on the frame 101 and is located on the side of the plurality of hot plate bodies 1 that is away from the laminating member. The driving assembly is arranged on the side of the movable member that is away from the plurality of hot plate bodies 1 and is connected to the movable member.

[0039] During pressing, the driving assembly drives the movable part to rise, thereby pushing each hot plate body 1 to rise respectively, until the hot plate body 1 located at the top abuts against the pressing part, and the driving assembly stops working. At this time, the stacked materials located in each pressing layer are respectively squeezed by two adjacent hot plate bodies 1 to form the required sheet material. After pressing, the driving assembly drives the movable part to descend, and each hot plate body 1 falls back to its original position respectively, completing the pressing process.

[0040] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, Figure 3 This is a perspective structural diagram of a hot plate device provided in an embodiment of the present application from a top view. Figure 4 for Figure 3 The cross-sectional view at AA in the middle. Figure 5 A schematic diagram of the structure of the front view of the hot plate device provided in the embodiment of the present application. On the basis of the present embodiment, a hot plate device 102 is also disclosed, and the hot plate device 102 also includes a pipeline mechanism 2, and the hot plate body 1 is provided with a plurality of fluid channels 11, and the plurality of fluid channels 11 are respectively distributed along the length extension direction of the hot plate body 1. Each fluid channel 11 includes a first flow channel 110 and a second flow channel 111 that are interconnected, and the first flow channel 110 and the second flow channel 111 extend respectively along the width extension direction of the hot plate body 1, and the first flow channel 110 and the second flow channel 111 are respectively distributed along the thickness extension direction of the hot plate body 1. The first flow channel 110 is provided with a first liquid inlet 110a and a first liquid outlet 110b, and the first liquid inlet 110a and the first liquid outlet 110b are respectively located at the two ends of the first flow channel 110. The second flow channel 111 is provided with a second liquid inlet 111a and a second liquid outlet 111b, which are respectively located at the two ends of the second flow channel 111, and the first liquid outlet 110b is connected to the second liquid inlet 111a. The pipeline mechanism 2 includes an inlet distributor 21 and an outlet distributor 22, wherein the inlet distributor 21 is respectively connected to each first liquid inlet 110a, and the outlet distributor 22 is respectively connected to each second liquid outlet 111b, wherein the length extension direction of the hot plate body 1 is Figure 3 The width of the hot plate body 1 extends in the X direction. Figure 3 The Y direction of the hot plate body 1 extends in the thickness direction of Figure 3 The Z direction in the image is perpendicular to the plane formed by the X direction and the Y direction.

[0041] In this embodiment, each first liquid inlet 110a is respectively located on the same side of the hot plate body 1, and each second liquid outlet 111b is respectively located on the same side of the hot plate body 1, which facilitates the connection of the inlet distributor 21 and the outlet distributor 22 to each fluid channel 11, and in the same fluid channel 11, the first liquid inlet 110a and the second liquid outlet 111b are respectively located on the same side of the hot plate body 1, which facilitates the layout and maintenance management of the pipelines and reduces the space occupied by the pipelines.

[0042] In this embodiment, the fluid channel 11 also includes a connecting channel 12, one end of the connecting channel 12 is connected to the first liquid outlet 110b, and the other end of the connecting channel 12 is connected to the second liquid inlet 111a, and the connecting channel 12 extends along the thickness extension direction of the hot plate body 1, thereby reducing the length of each fluid channel 11, thereby increasing the uniformity of the temperature of the hot plate body 1. It can be understood that in other embodiments, the connecting channel 12 can also extend along other directions.

[0043] In the present embodiment, the hot plate body 1 is a rectangular plate-shaped structure. It can be understood that in other embodiments, the hot plate body 1 may also be a circular, polygonal or other structure.

[0044] The heat plate body 1 of the present embodiment is provided with a plurality of fluid channels 11, the inlet distributor 21 is respectively connected to the first liquid inlet 110a of each fluid channel 11, and the outlet distributor 22 is respectively connected to the second liquid outlet 111b of each fluid channel 11. During operation, the cooling medium can enter the interior of the heat plate body 1 from each first liquid inlet 110a of each fluid channel 11 through the inlet distributor 21 at the same time, and then flow out from each second liquid outlet 111b of each fluid channel 11 through the outlet distributor 22 at the same time. The cooling medium with the same temperature flows through a plurality of parallel fluid channels 11 at the same time, which greatly reduces the passage path of the cooling medium and effectively avoids the temperature difference problem at the inlet and outlet of the cooling medium, thereby making the temperature of the heat plate body 1 uniform, improving the quality of the plate and ensuring the processing efficiency.

[0045] In the prior art, the heat plate is arranged in a structural mode in which the upper and lower rows of dry electric heating tubes are heated and the middle part is cooled. However, the installation position of the electric heating tubes in this structure is close to the upper and lower surfaces of the heat plate, and the heat will be quickly transferred to the plate to be pressed. The heating rate is not easy to control accurately, which can easily cause burns on the plate surface and produce waste. Moreover, if this structure causes a temperature difference between the upper and lower surfaces of the heat plate due to factors such as aging and local damage of the electric heating tubes, the temperature difference cannot be eliminated or adjusted through the cooling channel.

[0046] Reference Figure 3 and Figure 5As shown, the heat plate body 1 is also provided with a plurality of installation cavities 13, and the plurality of installation cavities 13 extend along the length extension direction of the first flow channel 110, respectively. The plurality of installation cavities 13 and the plurality of fluid channels 11 are respectively distributed in an interlaced manner along the length extension direction of the heat plate body 1. And along the thickness extension direction of the heat plate body 1, each installation cavity 13 is respectively located in the middle of the heat plate body 1, that is, the distance from the center of the installation cavity 13 to the upper surface and the lower surface of the heat plate body 1 is equal. The heat plate device 102 also includes a plurality of heating tubes, each heating tube is respectively arranged in each installation cavity 13, and the heating tube is used to heat the heat plate, thereby heating the stacked materials on the heat plate to soften or melt them, so as to facilitate pressing and forming.

[0047] In this embodiment, each installation cavity 13 is located in the middle of the heat plate body 1 along the thickness extension direction of the heat plate body 1, so that after each heating tube is inserted into each installation cavity 13, the heat is gradually conducted from the middle of the heat plate body 1 to the upper and lower surfaces of the heat plate body 1. The heat conduction distance is increased, which is conducive to precise temperature control and avoids excessive temperature rise, thereby ensuring the quality of the plate.

[0048] Reference Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, Figure 6 This is a schematic diagram of a cross-sectional structure of a lamination device provided in an embodiment of the present application. Figure 7 This is a schematic diagram of the structure of the inlet distributor of the hot plate device provided in an embodiment of the present application. Figure 8 This is a schematic diagram of the structure of the outflow distributor of the hot plate device provided in the embodiment of the present application. Fig. 9 A schematic diagram of the structure of the outflow distributor of the hot plate device provided in the embodiment of the present application. The inflow distributor 21 includes a first inlet pipe 210, a first pipeline 211 and a plurality of first outlet pipes 212, one end of the first inlet pipe 210 is connected to the first pipeline 211, and the other end of the first inlet pipe 210 is connected to the gas supply device and the liquid supply device. The plurality of first outlet pipes 212 are spaced apart along the length extension direction of the first pipeline 211, and one end of each first outlet pipe 212 is connected to the first pipeline 211, and the other end of each first outlet pipe 212 is connected to each first liquid inlet 110a.

[0049] The outflow distributor 22 includes a plurality of second inlet pipes 220, a second pipeline 221 and a second outlet pipe 222. The plurality of second inlet pipes 220 are spaced apart along the length extension direction of the second pipeline 221, and one end of each second inlet pipe 220 is connected to each second liquid outlet 111b, respectively, and the other end of each second inlet pipe 220 is connected to the second pipeline 221, respectively, and the second outlet pipe 222 is connected to the second pipeline 221.

[0050] In this embodiment, the second outlet pipe 222 is provided with an inlet end 222a and an outlet end 222b. The inlet end 222a is connected to the second pipe 221. Along the thickness extension direction of the hot plate body 1, the inlet end 222a is higher than the outlet end 222b, so that the fluid has a certain slope when flowing out of the second outlet pipe 222, which promotes the outflow of the fluid and prevents water accumulation in the pipe when there is no slope, resulting in poor water flow, thereby ensuring the normal operation of the pipe.

[0051] Reference Figure 1 , Figure 2 and Fig.10 As shown, Fig.10 The schematic diagram of the piping mechanism of the hot plate device provided in the embodiment of the present application. The piping mechanism 2 also includes a liquid inlet pipe 23, a liquid inlet branch pipe 24, an air inlet pipe 25, an air inlet branch pipe 26, an outflow main pipe 27 and a valve body assembly 28. The liquid inlet pipe 23 is connected to the first inlet pipe 210 through the liquid inlet branch pipe 24, and the liquid inlet pipe 23 is used to pass liquid (such as coolant). The air inlet pipe 25 is connected to the first inlet pipe 210 through the air inlet branch pipe 26, and the air inlet pipe 25 is used to pass gas (such as air). The outflow main pipe 27 is connected to the second outlet pipe 222.

[0052] The valve body assembly 28 includes a filter 280, a pressure reducing valve 281, a first two-way valve 282, a second two-way valve 283, a throttle valve 284, a first check valve 285 and a second check valve 286. The filter 280 is connected to the liquid inlet pipe 23 and is used to filter impurities in the liquid inlet pipe 23 to prevent the liquid inlet pipe 23 from being blocked or damaged, thereby ensuring the normal operation of the pipeline system. The pressure reducing valve 281 is connected to the liquid inlet pipe 23 and is used to open and close to reduce the water pressure when the water pressure in the pipeline is too high, thereby preventing the pipeline from bursting or leaking, and ensuring the safe operation of the pipeline system and equipment. The first two-way valve 282 is set on the liquid inlet branch pipe 24 to control the on-off of the liquid inlet branch pipe 24. The second two-way valve 283 is set on the air intake branch pipe 26 to control the on-off of the air intake branch pipe 26. The throttle valve 284 is provided on the liquid inlet branch pipe 24 to control the flow rate of the fluid in the liquid inlet branch pipe 24, thereby ensuring the normal operation of the pipeline system by adjusting the flow rate and pressure of the fluid in the pipeline. The first check valve 285 is provided on the liquid inlet branch pipe 24 to ensure that the fluid can only flow in one direction in the liquid inlet branch pipe 24 to prevent backflow, thereby improving the stability and safety of the equipment. The second check valve 286 is provided on the air inlet branch pipe 26 to ensure that the fluid can only flow in one direction in the air inlet branch pipe 26 to prevent backflow, thereby improving the stability and safety of the equipment.

[0053] In the present embodiment, the liquid inlet branch pipe 24 and the air inlet branch pipe 26 are respectively steel bellows, which have good corrosion resistance and are not easily affected by the corrosion of the medium in the pipeline. The steel bellows can absorb the vibration and impact generated during the movement of the pipeline, thereby ensuring stability during the working process. It can be understood that in other embodiments, the liquid inlet branch pipe 24 and the air inlet branch pipe 26 are also other pipes, such as metal hoses.

[0054] In the present embodiment, the number of liquid inlet branches 24, air inlet branches 26, inlet flow distributors 21, and outlet flow distributors 22 are respectively arranged corresponding to the number of heat plate bodies 1, and each heat plate body 1 is respectively connected to each liquid inlet branch 24 through each inlet flow distributor 21, and each heat plate body 1 is respectively connected to each air inlet branch 26 through each inlet flow distributor 21. The cooling medium of each heat plate body 1 of the present embodiment is independently controlled. When the temperature between each heat plate body 1 is uneven or there is a temperature difference, the temperature difference can be eliminated by adjusting the valve body assembly 28 to adjust the amount of cooling medium entering each heat plate body 1, so as to achieve consistent temperature of the heat plate body 1 and make it more accurate to control the heating rate.

[0055] In a specific application scenario, during cooling, compressed air is first introduced through the air inlet pipe 25, so that the compressed air enters each fluid channel 11 of the heat plate body 1 from the inlet distributor 21 through the air inlet branch pipe 26, and then passes through the outlet distributor 22 and is discharged from the outlet main pipe 27, so as to cool the heat plate body 1 from 400°C to 250°C;

[0056] Then use cooling water and compressed air to cool, firstly introduce cooling liquid through the liquid inlet pipe 23, then pause, introduce compressed air through the air inlet pipe 25 to blow out steam, and repeat several times until the temperature of the hot plate body 1 is reduced to 90°C;

[0057] Then, the cooling liquid is introduced through the liquid inlet pipe 23, so that the cooling liquid enters the fluid channels 11 of the hot plate body 1 from the inlet distributor 21 through the liquid inlet branch pipe 24, and then passes through the outlet distributor 22 and is discharged from the outlet main pipe 27 to cool the hot plate body 1 from 90°C to 40°C, completing the cooling process of the hot plate body 1.

[0058] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A hot plate device, characterized in that: include: A heat plate body, wherein the heat plate body is provided with a plurality of fluid channels, wherein the plurality of fluid channels are spaced apart along the length extension direction of the heat plate body, each of the fluid channels comprises a first channel and a second channel, wherein the first channel and the second channel are spaced apart along the thickness extension direction of the heat plate body, and the first channel is provided with a first liquid inlet and a first liquid outlet, and the second channel is provided with a second liquid inlet and a second liquid outlet, and the first liquid outlet is connected to the second liquid inlet; A pipeline mechanism, wherein the pipeline mechanism comprises an inlet distributor and an outlet distributor, wherein the inlet distributor is connected to each of the first liquid inlets respectively, and the outlet distributor is connected to each of the second liquid outlets respectively.

2. The hot plate device according to claim 1, characterized in that: The first liquid inlet and the first liquid outlet are respectively located at two ends of the first flow channel, the second liquid inlet and the second liquid outlet are respectively located at two ends of the second flow channel, and the fluid channel also includes a connecting flow channel, which extends along the thickness extension direction of the hot plate body, and one end of the connecting flow channel is connected to the first liquid outlet, and the other end of the connecting flow channel is connected to the second liquid inlet.

3. The hot plate device according to claim 1, characterized in that: In the same fluid channel, the first liquid inlet and the second liquid outlet are respectively located on the same side of the hot plate body.

4. The hot plate device according to claim 3, characterized in that: The first liquid inlets are respectively located on the same side of the hot plate body, and the second liquid outlets are respectively located on the same side of the hot plate body.

5. The hot plate device according to any one of claims 1 to 4, characterized in that: The heat plate body is also provided with a plurality of installation cavities, and the plurality of installation cavities and the plurality of fluid channels are respectively distributed at staggered intervals along the length extension direction of the heat plate body. The heat plate device also includes a plurality of heating tubes, and each heating tube is respectively arranged in each installation cavity.

6. The hot plate device according to claim 5, characterized in that: The inlet distributor comprises a first inlet pipe, a first pipeline and a plurality of first outlet pipes, one end of the first inlet pipe is connected to the first pipeline, the other end of the first inlet pipe is used to connect to a fluid supply device, one end of each of the first outlet pipes is respectively connected to the first pipeline, and the other end of each of the first outlet pipes is respectively connected to each of the first liquid inlets; The outflow distributor includes a plurality of second inlet pipes, second pipes and second outlet pipes, one end of each second inlet pipe is respectively connected to each second liquid outlet, the other end of each second inlet pipe is respectively connected to the second pipe, and the second outlet pipe is connected to the second pipe.

7. The hot plate device according to claim 6, characterized in that: The second outlet pipe is provided with an inlet end and an outlet end, the inlet end is connected to the second pipeline, and along the thickness extension direction of the hot plate body, the inlet end is higher than the outlet end.

8. The hot plate device according to claim 6, characterized in that: The pipeline mechanism further includes a valve body assembly, which is connected to the first inlet pipe and is used to control the flow rate of the fluid entering the first inlet pipe.

9. The hot plate device according to claim 8, characterized in that: The valve body assembly includes a filter, a pressure reducing valve and a throttle valve. The filter is connected to the first inlet pipe and is used to filter impurities in the fluid entering the first liquid inlet. The pressure reducing valve is connected to the first inlet pipe and is used to adjust the pressure in the first inlet pipe. The throttle valve is connected to the first inlet pipe and is used to control the flow rate of the fluid entering the first inlet pipe.

10. A pressing device, characterized in that: It comprises a frame, a driving assembly, a pressing part, a movable part and a hot plate device as described in any one of claims 1 to 9, wherein the hot plate device is mounted on the frame, the pressing part is arranged on the frame and located on one side of the hot plate device, the movable part is arranged on the frame and located on the side of the hot plate device facing away from the pressing part, and the driving assembly is connected to the movable part.

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