Hot press

Abstract

The utility model provides a hot press. The hot press comprises a synchronous driving assembly, a bottom plate, a pressing device and a transferring device, wherein the pressing device and the transferring device are arranged on the bottom plate; the transferring device comprises a transferring base, a first pressure maintaining table and a second pressure maintaining table. The transferring device comprises a transferring base, a first pressure maintaining table, a second pressure maintaining table and a synchronous driving assembly. The transferring base is arranged on the bottom plate, a feeding and discharging area and a pressing area are distributed on the transferring base, and the transferring base is movably connected with the first pressure maintaining table and the second pressure maintaining table. The synchronous driving assembly is connected with the first pressure maintaining table and the second pressure maintaining table and used for driving one of the first pressure maintaining table and the second pressure maintaining table to move towards the pressing area and synchronously driving the other one of the first pressure maintaining table and the second pressure maintaining table to move towards the feeding and discharging area. According to the hot press provided by the invention, the hot pressing interval time of different batches of electrode films can be shortened, and the hot pressing efficiency of the electrode films is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery manufacturing devices, and particularly relates to a hot press machine. Background Art

[0002] Thermal pressing treatment of the membrane electrode is a key step in electrode preparation, which can effectively improve the electrochemical performance of the battery, improve the crystal structure of the electrode material and the denseness of the electrode layer, and enhance the contact quality, electron conduction performance and power output between the electrode materials; moreover, through thermal pressing, the electrode film can be tightly combined with the current collector, preventing delamination or separation of the electrode material during use, and to a certain extent, it can also ensure the long-term stability and reliability of the battery.

[0003] The thermal pressing of the membrane electrode is generally realized by a hot press machine. The hot press machine is a device specially used in the battery manufacturing process. Its main function is to thermally press and cure the thin film electrode sheet of the battery with components such as the current collector and separator of the battery to form a complete battery electrode structure; however, currently, the thermal pressing process of the hot press machine generally needs to go through steps such as loading the membrane electrode product, pressurizing, holding pressure, and cooling. These steps take a long time, and the interval time between each step is also long, seriously affecting the thermal pressing efficiency of a single hot press machine.

[0004] Therefore, there is currently a need for a solution to solve at least one of the above problems. Summary of the Utility Model

[0005] In view of at least one of the defects in the prior art, the present application provides a hot press machine.

[0006] The technical solution adopted by the present application to solve at least one of the above technical problems is as follows:

[0007] A hot press machine includes: a bottom plate and a pressing device and a transfer device provided on the bottom plate;

[0008] The pressing device includes a pressing table, a frame body and a lifting mechanism. The frame body is provided on the bottom plate, the lifting mechanism is provided on the frame body, and the lifting mechanism is movably connected to the pressing table to drive the pressing table to move in a direction close to and / or away from the bottom plate;

[0009] The transfer device includes a transfer base, a first pressure-holding table, a second pressure-holding table and a synchronous driving component; the transfer base is provided on the bottom plate, and a loading / unloading area and a pressing area are distributed on the transfer base, and the transfer base is respectively movably connected to the first pressure-holding table and the second pressure-holding table to enable the first pressure-holding table and the second pressure-holding table to reciprocate alternately between the loading / unloading area and the pressing area;

[0010] The synchronous drive assembly is respectively connected to the first pressure-holding table and the second pressure-holding table. When driving one of the first pressure-holding table and the second pressure-holding table to move towards the pressing area, the other one is synchronously driven to move towards the loading and unloading area.

[0011] In a specific embodiment, a first slide rail and a second slide rail are arranged along the length direction of the transfer base. A first slider is correspondingly arranged on the first pressure-holding table, and a second slider is correspondingly arranged on the second pressure-holding table;

[0012] The first slide rail is movably connected to the first slider, and the second slide rail is movably connected to the second slider, so as to realize the sliding connection between the first pressure-holding table, the second pressure-holding table and the transfer base respectively.

[0013] In a specific embodiment, the synchronous drive assembly includes a servo motor and a synchronous belt;

[0014] Both the first slider and the second slider are connected to the servo motor through the synchronous belt, so as to realize the synchronous movement of the first slider and the second slider.

[0015] In a specific embodiment, guide columns are arranged between the pressing table and the frame body to guide the pressing table to move in a direction close to and / or away from the bottom plate. The guide columns are distributed along the circumferential direction of the frame body.

[0016] In a specific embodiment, the pressing area is within the projection range of the pressing table on the bottom plate.

[0017] In a specific embodiment, at least two heating tubes are embedded in the pressing table, the first pressure-holding table and the second pressure-holding table. The heating tubes are distributed in a determinant form to form a heating tube array of M×N. The heating tube array covers the contact surface between the pressing table, the first pressure-holding table or the second pressure-holding table and the workpiece, where M is not less than 1 and N is not less than 2.

[0018] In a specific embodiment, heat insulation parts and temperature detectors are arranged on the pressing table, the first pressure-holding table and the second pressure-holding table; the heat insulation parts are distributed on the periphery of the heating tube array, and at least part of the area where the temperature detector is located overlaps with the area where the heating tube array is located.

[0019] In a specific embodiment, a pressure sensor is arranged on the pressing table to detect the pressure value between the pressing table and the first pressure-holding table or the second pressure-holding table.

[0020] In a specific embodiment, a sensor assembly is further provided on the frame body, an identification portion is provided on the guide post, and the sensor assembly is used to determine the distance between the pressing table and the first pressure maintaining table or the second pressure maintaining table by recognizing the identification portion.

[0021] In a specific embodiment, the width of the second pressure maintaining table is not greater than the width of the first pressure maintaining table, and the relative height from the bottom of the first pressure maintaining table to the bottom plate is not less than the relative height from the top of the second pressure maintaining table to the bottom plate.

[0022] Beneficial effects:

[0023] The present application provides a hot press, which can shorten the hot pressing interval time of electrode films in different batches and effectively improve the hot pressing efficiency of the electrode films. Specifically, a first pressure maintaining table and a second pressure maintaining table are provided. By alternately rotating between the first pressure maintaining table and the second pressure maintaining table, when one of them is performing the hot pressing step, the other is performing the feeding step, so as to realize the synchronous progress of partial hot pressing steps of different batches, thereby shortening the total time consumption of hot pressing electrode films in different batches and improving the production efficiency. Description of the drawings

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a three-dimensional view of the hot press of this embodiment;

[0026] Figure 2 It is a three-dimensional view of the pressing device of this embodiment;

[0027] Figure 3 It is a three-dimensional view of the transfer device of this embodiment;

[0028] Figure 4 It is a top view of the transfer device of this embodiment;

[0029] Figure 5 It is an internal structure diagram of the pressing table, the first pressure maintaining table, and the second pressure maintaining table of this embodiment;

[0030] Figure 6 It is an enlarged view of the internal structure details of the transfer device of this embodiment.

[0031] Reference numerals:

[0032] 1 - Synchronous drive assembly; 11 - Synchronous belt; 12 - Servo motor; 2 - Base plate; 3 - Pressing device; 31 - Pressing table; 32 - Frame body; 321 - Guide post; 322 - Identification part; 323 - Sensor assembly; 33 - Lifting mechanism; 34 - Pressure sensor; 4 - Transfer device; 41 - First pressure - maintaining table; 42 - Second pressure - maintaining table; 43 - Transfer base; 51 - Loading and unloading area; 52 - Pressing area; 61 - First slide rail; 62 - Second slide rail; 71 - First slider; 72 - Second slider; 80 - Heating tube; 81 - Heating tube array; 82 - Heat insulation part; 83 - Temperature detector. Detailed implementation manners

[0033] In the following, various embodiments of the present disclosure will be described more comprehensively. The present disclosure can have various embodiments, and adjustments and changes can be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present disclosure to the specific embodiments disclosed herein, but the present disclosure should be understood to cover all adjustments, equivalents, and / or alternative solutions falling within the spirit and scope of the various embodiments of the present disclosure.

[0034] In the following, the term "comprise" or "may comprise" that can be used in various embodiments of the present disclosure indicates the presence of the disclosed functions, operations, or elements, and does not limit the addition of one or more functions, operations, or elements. In addition, as used in various embodiments of the present disclosure, the terms "comprise", "have" and their cognates are only intended to indicate a specific feature, number, step, operation, element, component, or combination of the foregoing items, and should not be construed as first excluding the existence of one or more other features, numbers, steps, operations, elements, components, or the possibility of adding one or more features, numbers, steps, operations, elements, components, or combination of the foregoing items.

[0035] In various embodiments of the present disclosure, the expression "or" or "at least one of A or / and B" includes any combination or all combinations of the listed words. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.

[0036] Expressions (such as "first", "second", etc.) used in various embodiments of the present disclosure may modify various components in the various embodiments, but do not limit the corresponding components. For example, the above expressions do not limit the order and / or importance of the components. The above expressions are only used for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present disclosure, the first element may be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0037] It should be noted that: If a description "connects" a component to another component, the first component can be directly connected to the second component, and a third component can be "connected" between the first component and the second component. Conversely, when a component is "directly connected" to another component, it can be understood that there is no third component between the first component and the second component.

[0038] The term "user" used in various embodiments of the present disclosure may refer to a person who uses an electronic device or a device that uses an electronic device (e.g., an artificial intelligence electronic device).

[0039] The terms used in various embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the various embodiments of the present disclosure. As used herein, the singular form is intended to also include the plural form unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the various embodiments of the present disclosure belong. The terms (such as those defined in a commonly used dictionary) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning unless clearly defined in the various embodiments of the present disclosure.

[0040] Embodiment

[0041] An embodiment of the present application provides a hot press, as Figures 1 to 6 shown, including: a bottom plate 2 and a pressing device 3 and a transfer device 4 provided on the bottom plate 2;

[0042] The pressing device 3 includes a pressing table 31, a frame 32 and a lifting mechanism 33. The frame 32 is provided on the bottom plate 2, the lifting mechanism 33 is provided on the frame 32, and the lifting mechanism 33 is movably connected to the pressing table 31 for driving the pressing table 31 to move in a direction close to and / or away from the bottom plate 2;

[0043] Specifically, in some embodiments of the present application, the lifting mechanism 33 is movably connected to the pressing table 31 to drive the pressing table 31 to move in a direction close to or away from the floor. When the pressing table 31 moves in a direction close to the bottom plate 2, the pressing table 31 can perform a hot pressing operation on a workpiece, such as a membrane electrode.

[0044] More specifically, in some embodiments of the present application, the lifting mechanism 33 can be implemented by a high-precision electric cylinder, thereby achieving precise control of the movement speed and movement distance of the pressing table 31.

[0045] The transfer device 4 includes a transfer base 43, a first pressure-holding table 41, a second pressure-holding table 42, and a synchronous drive assembly 1; the transfer base 43 is arranged on the bottom plate 2, and a loading / unloading area 51 and a pressing area 52 are distributed on the transfer base 43, and the transfer base 43 is respectively movably connected to the first pressure-holding table 41 and the second pressure-holding table 42, so as to enable the first pressure-holding table 41 and the second pressure-holding table 42 to reciprocally and alternately move between the loading / unloading area 51 and the pressing area 52;

[0046] The synchronous drive assembly 1 is respectively connected to the first pressure-holding table 41 and the second pressure-holding table 42. When driving one of the first pressure-holding table 41 and the second pressure-holding table 42 to move towards the pressing area 52, the synchronous drive assembly 1 synchronously drives the other one to move towards the loading / unloading area 51, so as to improve the hot pressing efficiency of the hot press.

[0047] It can be understood that the first pressure-holding table 41 and the second pressure-holding table 42 can alternately rotate to the pressing area 52 and respectively cooperate with the pressing table 31 to perform hot pressing and pressure-holding operations; when the first pressure-holding table 41 or the second pressure-holding table 42 moves to the loading / unloading area 51; the first pressure-holding table 41 and the second pressure-holding table 42 can respectively perform loading operations;

[0048] Through the synchronous drive assembly 1, the first pressure-holding table 41 and the second pressure-holding table 42 can work together to achieve simultaneous operations. Exemplarily, when the first pressure-holding table 41 moves towards the pressing area 52, the second pressure-holding table 42 synchronously moves towards the loading / unloading area 51; when the first pressure-holding table 41 performs pressing in the pressing area 52, the second pressure-holding table 42 can load or unload materials in the loading / unloading area 51. Such parallel operations can significantly improve production efficiency, reduce the production cycle, and increase equipment utilization rate.

[0049] In the working cycle of the conventional hot press, the hot pressing of the workpieces in this batch needs to be carried out step by step in sequence. With the design of such a hot press, through the drive of the synchronous drive assembly 1, the idle time between adjacent batches is reduced, and the first pressure-holding table 41 and the second pressure-holding table 42 can alternately perform pressing and loading / unloading operations, so as to maximize the utilization of the time for hot pressing different batches of workpieces.

[0050] In addition, the synchronous drive assembly 1 realizes the motion synchronization of the first pressure-holding table 41 and the second pressure-holding table 42. Specifically, it helps the accurate alignment and synchronous pressing of materials during the pressing process of the hot press, and to a certain extent helps to ensure the quality and consistency of the products.

[0051] Furthermore, as Figure 3 shown, a first slide rail 61 and a second slide rail 62 are arranged along the length direction of the transfer base 43, a first slider 71 is correspondingly arranged on the first pressure-holding table 41, and a second slider 72 is correspondingly arranged on the second pressure-holding table 42;

[0052] The first slide rail 61 is movably connected to the first slider 71, and the second slide rail 62 is movably connected to the second slider 72, so as to realize the sliding connection between the first pressure maintaining table 41, the second pressure maintaining table 42 and the transfer base 43 respectively.

[0053] The first pressure maintaining table 41 and the second pressure maintaining table 42 are connected to the slide rail system through their respective sliders, and can achieve stable sliding connection on the transfer base 43. The above structural design can, to a certain extent, maintain the stability and accuracy of the first pressure maintaining table 41 and the second pressure maintaining table 42 during movement, and help to ensure the alignment and accuracy requirements during the pressing process.

[0054] The design of the first slide rail 61 and the first slider 71 enables the first pressure maintaining table 41 to move relatively independently on the transfer base 43, and the design of the second slide rail 62 and the second slider 72 enables the second pressure maintaining table 42 to move relatively independently on the transfer base 43, which helps to flexibly adjust the positions and layouts of the first pressure maintaining table 41 and the second pressure maintaining table 42 during the hot pressing process to adapt to workpieces of different sizes and shapes, and improves the adaptability and flexibility of the production line.

[0055] The connection methods of the first slide rail 61 and the first slider 71, and the second slide rail 62 and the second slider 72 enable the pressure maintaining table to move quickly and smoothly on the transfer base 43, which can reduce the equipment operation time, and can more precisely control the position and movement trajectory of the pressure maintaining table, thereby improving the operation efficiency and production efficiency.

[0056] Furthermore, the first slide rail 61 and the second slide rail 62 are arranged in different planes.

[0057] It can be understood that by arranging the first slide rail 61 and the second slide rail 62 on different planes, the interference and cross influence between the first slide rail 61 and the second slide rail 62 can be effectively reduced, and the mutual interference caused by mechanical vibration or load change can be avoided to a certain extent, thereby ensuring the stability and reliability of each slide rail system. The non-coplanar arrangement of the first slide rail 61 and the second slide rail 62 can also make more effective use of the available space. In a limited working area, by arranging the slide rails at different heights or planes, the equipment layout can be optimized to the greatest extent.

[0058] Furthermore, as Figure 3 shown in Figure 6 Figure, the synchronous drive assembly 1 includes a servo motor 12 and a synchronous pulley belt 11;

[0059] Both the first slider 71 and the second slider 72 are connected to the servo motor 12 through the synchronous pulley belt 11 to realize the synchronous movement of the first slider 71 and the second slider 72.

[0060] By driving the synchronous belt 11 through the servo motor 12, the first slider 71 and the second slider 72 can achieve precise synchronous movement with the same speed and position change, thereby maintaining the consistency of the relative position and relative movement speed of the first pressure holding table 41 and the second pressure holding table 42, which helps to ensure the stable operation of the first pressure holding table 41 and the second pressure holding table 42, and also helps to improve the production efficiency of hot pressing different batches of workpieces.

[0061] Specifically, the synchronous movement of the synchronous belt 11 driven by the servo motor 12 is helpful for the coordinated work between the first slider 71 and the second slider 72, thereby improving the production efficiency and reducing the production cycle.

[0062] The servo motor 12 also generally has flexible control capabilities and can adjust the movement speed and acceleration as needed, so that the synchronous drive assembly 1 has higher adaptability and flexibility in dealing with different workpiece sizes, production requirements or processing steps, thereby enhancing the versatility and resilience of the production line.

[0063] The servo motor 12 and the synchronous belt 11 are usually designed to be simple in structure, durable and easy to maintain, and can maintain stable performance during long-term operation. The maintenance work is relatively simple, reducing downtime and repair costs.

[0064] Furthermore, if Figure 1 and Figure 2 As shown, guide posts 321 are provided between the pressing platform 31 and the frame 32 to guide the pressing platform 31 to move in a direction close to and / or away from the base plate 2 , and the guide posts 321 are distributed along the circumference of the frame 32 .

[0065] The guide column 321 enables the pressing table 31 to move along a predetermined path during movement, avoiding deviation or tilting, and has strong movement stability, which facilitates the precise alignment of the pressing table 31 with the first holding table 41 or the second holding table 42 during the hot pressing process, and helps to improve the hot pressing quality of the workpiece.

[0066] Through circumferential distribution, the guide pillars 321 can effectively support and disperse the movement force of the pressing table 31, thereby enhancing the stability and bearing capacity of the entire structure, helping to reduce structural deformation and stress concentration, and improving the reliability of the hot press.

[0067] Furthermore, the pressing area 52 is located within the projection range of the pressing platform 31 on the base plate 2 .

[0068] By limiting the pressing area 52 within the projection range of the pressing table 31, it is helpful to complete the pressing action within the designed area, so that the pressing force of the pressing table 31 can be evenly and accurately applied to the workpiece, thereby ensuring the quality and consistency of the product.

[0069] The area within the projection range of the pressing table 31 can also more effectively control the distribution of the pressing force, so that over-pressing or under-pressing will not occur during the pressing process, thereby avoiding product deformation or quality problems.

[0070] Furthermore, as Figure 5 shown, at least two heating tubes 80 are embedded in the pressing table 31, the first pressure-holding table 41, and the second pressure-holding table 42. The heating tubes 80 are distributed in a determinant pattern to form a heating tube array 81 of M×N. The heating tube array 81 covers the contact surface between the pressing table 31, the first pressure-holding table 41, or the second pressure-holding table 42 and the workpiece. Among them, M is not less than 1, and N is not less than 2.

[0071] The heating tube array 81 can provide precise temperature control, making the temperature of the contact surface constant and evenly distributed during the pressing process. This helps to maintain a specific temperature, thereby reducing product deformation and quality problems; stable heating and temperature control also contribute to improving product quality and consistency, and reducing production defects and rejection rates caused by uneven or unstable temperatures.

[0072] The heating tube array 81 can also more precisely control the heating area, avoid energy waste, and achieve directional heating. This not only helps to save energy consumption, but also improves heating efficiency and shortens the heating and pressing cycles.

[0073] The layout of the heating tube array 81 can also be optimized according to specific process requirements. For example, heating tubes 80 with different densities and layouts are arranged at different positions on the pressing table 31 and the pressure-holding tables to achieve a more precise temperature distribution and pressing effect.

[0074] Furthermore, as Figure 5 shown, the pressing table 31, the first pressure-holding table 41, and the second pressure-holding table 42 are all provided with heat insulation parts 82 and temperature detectors 83; the heat insulation parts 82 are distributed on the periphery of the heating tube array 81, and at least part of the area where the temperature detector 83 is located overlaps with the area where the heating tube array 81 is located.

[0075] The heat insulation part 82 can effectively reduce the outward conduction of heat. On the one hand, it helps to limit the heat of the heating tube array 81 from being conducted to non-working areas, enabling the heat of the pressing table 31, the first pressure-holding table 41, and the second pressure-holding table 42 to be effectively concentrated to achieve a good hot pressing effect. It can also reduce the overall energy consumption, which is not only beneficial to environmental protection but also can reduce production costs; on the other hand, it helps to reduce the outer surface temperature of the pressing table 31, the first pressure-holding table 41, the second pressure-holding table 42, and their auxiliary equipment, thereby reducing the risk of scalding caused by accidental contact and further improving the safety performance of the hot press.

[0076] The area where the temperature detector 83 is located partially overlaps with the area of the heating tube array 81, which can enable the temperature detector 83 to monitor the temperature of the workpiece contact surface more accurately and in real time, thereby optimizing the production process, helping to improve production efficiency, and to a certain extent also helping to ensure the processing consistency and quality of each workpiece.

[0077] Furthermore, as Figure 2 shown, a pressure sensor 34 for detecting the pressure value between the pressing table 31 and the first pressure maintaining table 41 or the second pressure maintaining table 42 is provided on the pressing table 31.

[0078] The pressure sensor 34 can monitor in real time the pressure exerted by the pressing table 31 on the workpiece and the reaction force of the first pressure maintaining table 41 or the second pressure maintaining table 42. Such real-time feedback can help the operator adjust and optimize the pressing process to ensure that the applied pressure is within the designed range and can be adjusted as needed. Generally speaking, if the pressure value detected by the pressure sensor 34 is abnormal, it is very likely that the hot press has a malfunction. Therefore, a warning can be given in advance to enable the operator to take necessary measures to avoid potential problems and promptly carry out the repair and maintenance of the hot press.

[0079] By accurately controlling and monitoring the pressure during the pressing process, it helps each workpiece to obtain the same pressing effect, and then maintain the same quality standard, which is conducive to achieving high-precision and high-consistency membrane electrode hot pressing, can reduce the defective rate and improve production efficiency.

[0080] In addition, the precise pressure control achieved by the pressure sensor 34 helps to optimize the energy consumption during the pressing process, enabling the hot press to achieve the required pressing effect with the minimum energy consumption, which is not only beneficial to environmental protection but also helps to reduce production costs.

[0081] Furthermore, as Figure 2 shown, a sensor assembly 323 is also provided on the frame 32, and an identification portion 322 is provided on the guide post 321. The sensor assembly 323 is used to determine the distance between the pressing table 31 and the first pressure maintaining table 41 or the second pressure maintaining table 42 by identifying the identification portion 322.

[0082] The sensor assembly 323 can accurately measure and identify the positional relationship of the identification portion 322, thereby achieving accurate measurement of the distance between the pressing table 31 and the first pressure maintaining table 41 or the second pressure maintaining table 42, that is, it helps to detect the relative position between the pressing table 31 and the first pressure maintaining table 41 or the second pressure maintaining table 42. Such precise stroke control of the lifting mechanism 33, in cooperation with the pressure sensor 34, can ensure to a certain extent the correct alignment of the pressing table 31 with the first pressure maintaining table 41 or the second pressure maintaining table 42 and the workpiece and the uniform application of the pressing force during the pressing process, thereby helping to improve the quality and consistency of the workpiece after hot pressing.

[0083] Further, the width of the second pressure maintaining table 42 is not greater than the width of the first pressure maintaining table 41, and the relative height from the bottom of the first pressure maintaining table 41 to the bottom plate 2 is not less than the relative height from the top of the second pressure maintaining table 42 to the bottom plate 2.

[0084] The design of the height and width between the first pressure maintaining table 41 and the second pressure maintaining table 42 can improve the stability of the overall structure, thereby realizing stable alternating movement between the first pressure maintaining table 41 and the second pressure maintaining table 42, helping the first pressure maintaining table 41 to smoothly cross the second pressure maintaining table 42, and to a certain extent, effectively avoiding mutual interference between the first pressure maintaining table 41 and the second pressure maintaining table 42 during the movement process.

[0085] Further, a jacking mechanism (not shown in the figure) is also provided on the first pressure maintaining table 41. The jacking mechanism is used to change the relative height between the first pressure maintaining table 41 and the second pressure maintaining table 42 to facilitate the alternating movement between the first pressure maintaining table 41 and the second pressure maintaining table 42.

[0086] Different workpieces may have different pressing requirements or heights. The height of the first pressure maintaining table 41 can be adjusted through the jacking mechanism to achieve strong adaptability and flexibility; during the pressing process, the jacking mechanism can accurately control the height of the first pressure maintaining table 41 to optimize its relative position with the second pressure maintaining table 42, thereby helping the smooth alternation between the first pressure maintaining table 41 and the second pressure maintaining table 42.

[0087] The embodiments of the present application at least have the following beneficial effects:

[0088] The embodiments of the present application provide a hot press, which can shorten the hot pressing interval time of electrode films in different batches and effectively improve the hot pressing efficiency of the electrode films; specifically, a first pressure maintaining table 41 and a second pressure maintaining table 42 are provided. Through the alternating rotation between the first pressure maintaining table 41 and the second pressure maintaining table 42, when one of them performs the hot pressing step and the other performs the feeding step, the synchronous progress of partial hot pressing steps in different batches is realized, thereby shortening the total hot pressing time consumption of electrode films in different batches and improving the production efficiency.

[0089] Those skilled in the art can understand that the modules in the devices in the implementation scenarios can be distributed in the devices in the implementation scenarios according to the descriptions of the implementation scenarios, or can be correspondingly changed and located in one or more devices different from this implementation scenario. The modules in the above implementation scenarios can be combined into one module, or can be further split into multiple sub-modules.

[0090] The above serial numbers of the present application are only for description and do not represent the advantages or disadvantages of the implementation scenarios.

[0091] The above are only several specific implementation scenarios of the present application. However, the present application is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present application.

Claims

1. A hot press, characterized in that: include: A bottom plate and a pressing device and a transferring device arranged on the bottom plate; The laminating device comprises a laminating platform, a frame and a lifting mechanism, wherein the frame is arranged on the bottom plate, the lifting mechanism is arranged on the frame, and the lifting mechanism can be movably connected to the laminating platform to drive the laminating platform to move in a direction close to and / or away from the bottom plate; The transfer device comprises a transfer base, a first pressure-maintaining platform, a second pressure-maintaining platform and a synchronous drive assembly; the transfer base is arranged on the bottom plate, a loading and unloading area and a pressing area are distributed on the transfer base, and the transfer base can be movably connected to the first pressure-maintaining platform and the second pressure-maintaining platform respectively, so as to make the first pressure-maintaining platform and the second pressure-maintaining platform reciprocate and alternately move between the loading and unloading area and the pressing area respectively; The synchronous driving assembly is connected to the first pressure-maintaining platform and the second pressure-maintaining platform respectively, and is used to drive one of the first pressure-maintaining platform and the second pressure-maintaining platform to move toward the pressing area, and synchronously drive the other of the two to move toward the loading and unloading area.

2. A hot press according to claim 1, characterized in that: A first slide rail and a second slide rail are arranged along the length direction of the transfer base, a first slide block is correspondingly arranged on the first pressure-maintaining platform, and a second slide block is correspondingly arranged on the second pressure-maintaining platform; The first slide rail can be movably connected to the first slider, and the second slide rail can be movably connected to the second slider, so as to realize the sliding connection between the first pressure-maintaining platform and the second pressure-maintaining platform and the transfer base respectively.

3. A hot press according to claim 2, characterized in that: The synchronous drive assembly includes a servo motor and a synchronous belt; The first slider and the second slider are both connected to the servo motor via the synchronous belt to achieve synchronous movement of the first slider and the second slider.

4. A hot press according to claim 1, characterized in that: A guide column is arranged between the pressing platform and the frame body to guide the pressing platform to move in a direction approaching and / or away from the bottom plate, and the guide column is distributed along the circumference of the frame body.

5. A hot press according to claim 1, characterized in that: The pressing area is located within the projection range of the pressing platform on the bottom plate.

6. A hot press according to claim 1, characterized in that: The pressing platform, the first pressure-keeping platform and the second pressure-keeping platform are all embedded with at least two heating tubes, and the heating tubes are distributed in a determinant to form an M×N heating tube array, and the heating tube array covers the contact surface between the pressing platform, the first pressure-keeping platform or the second pressure-keeping platform and the workpiece, wherein M is not less than 1 and N is not less than 2.

7. A hot press according to claim 6, characterized in that: The pressing platform, the first pressure-maintaining platform and the second pressure-maintaining platform are all provided with a heat insulation part and a temperature detector; the heat insulation part is distributed around the periphery of the heating tube array, and the area where the temperature detector is located at least partially overlaps with the area where the heating tube array is located.

8. A hot press according to claim 1, characterized in that: The pressing platform is provided with a pressure sensor for detecting the pressure value of the pressing platform and the first pressure-maintaining platform or the second pressure-maintaining platform.

9. A hot press according to claim 4, characterized in that: The frame is also provided with a sensor assembly, and the guide column is provided with an identification portion. The sensor assembly is used to determine the distance between the pressing platform and the first pressure-maintaining platform or the second pressure-maintaining platform by identifying the identification portion.

10. A hot press according to any one of claims 1 to 9, characterized in that: The width of the second pressure-maintaining platform is not greater than that of the first pressure-maintaining platform, and the relative height from the bottom of the first pressure-maintaining platform to the bottom plate is not less than the relative height from the top of the second pressure-maintaining platform to the bottom plate.

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