hot press

Abstract

The present application relates to a hot press. The hot press includes a base, a first extrusion head, a second extrusion head, a power unit, and a pressure spring; the first extrusion head is movably arranged on the base; the second extrusion head is arranged relative to the first extrusion head along a first direction and is arranged on the base; the power unit is used to drive the first extrusion head closer to the second extrusion head relative to the base to extrude the workpiece to be pressed arranged on the second extrusion head; the pressure spring is arranged at the output end of the power unit, and the first extrusion head is connected to the power unit via the pressure spring. The hot press provided by the present invention can ensure that the workpiece to be pressed is subjected to uniform force during the pressing process, effectively improve the thickness accuracy of the finished product, and at the same time, the surface performance of the finished product is better.

Description

Technical Field

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

[0002] Hot pressing is a processing method that heats the extrusion surface during the extrusion molding process to change the performance of the workpiece to be pressed, making it easier to deform while also improving the strength and flatness of the extrusion surface. It can be widely used in industries such as electronics, machinery, printing, and sheet metal processing. The hot pressing process is to place the workpiece to be pressed in the processing position of the hot press, and then use the hot press to extrude the workpiece to reach the required thickness. Existing hot presses cannot guarantee the thickness accuracy of the processed finished product. At the same time, the extrusion process may cause damage to the surface of the workpiece to be pressed, affecting the surface performance of the finished product. Summary of the Invention

[0003] The purpose of this application is to provide a hot press, which is used to improve the shortcomings of existing hot presses that cannot guarantee the thickness accuracy and surface performance of the finished product, thereby improving product quality.

[0004] In order to achieve the above-mentioned purpose, according to an embodiment of the present application, a hot press is provided, including a base, a first extrusion head, a second extrusion head, a power device and a leveling mechanism; the first extrusion head is movably arranged on the base; the second extrusion head is arranged opposite to the first extrusion head along a first direction and is arranged on the base; the power device is used to drive the first extrusion head to approach the second extrusion head relative to the base, so as to extrude the workpiece to be pressed arranged on the second extrusion head; the leveling mechanism is arranged at the output end of the power device, and the first extrusion head is connected to the power device through the leveling mechanism.

[0005] In the above technical solution, a first extrusion head and a second extrusion head are arranged relative to each other along a first direction. The first extrusion head is movably mounted on a base, which is a frame-type structure used to support the hot press. The workpiece to be pressed is arranged on the surface of the second extrusion head. Driven by a power device, the first extrusion head approaches the second extrusion head to extrude the workpiece on the second extrusion head. A leveling mechanism is arranged at the output end of the power device and can act on the first extrusion head. When the first and second extrusion heads extrude the workpiece, the reaction force of the extrusion causes the leveling mechanism to contract. The leveling mechanism can absorb and buffer this pressure and adjust the direction of the pressure so that the force applied by the first extrusion head can be evenly applied to the workpiece. This ensures that the thickness of the finished product obtained by the hot press with this structure is consistent throughout, thereby improving the processing accuracy of the finished product thickness. On the other hand, the leveling mechanism can buffer irregular jitter or vibration caused by the force applied to the first extrusion head, allowing the first extrusion head to maintain continuous contact and extrusion with the workpiece during the pressing process, effectively improving the surface processing effect of the workpiece.

[0006] In addition, the hot press according to the embodiment of the present application also has the following additional technical features:

[0007] According to some embodiments of the present application, the power device includes a linear telescopic mechanism and a connecting member, the connecting member is connected to the power output shaft of the linear telescopic mechanism, and the power output end of the connecting member acts on the first extrusion head through a leveling mechanism.

[0008] In the above technical solution, the connecting piece is connected to the power output shaft of the linear telescopic mechanism, and the two ends of the leveling mechanism are respectively installed in contact with the connecting piece and the first extrusion head. The installation relationship between the leveling mechanism and the linear telescopic mechanism is more flexible, and the disassembly and assembly are relatively simple, which facilitates the replacement of components, allowing the hot press to continue processing operations, improving the working efficiency of the hot press, and is conducive to the simple operation and promotion of the hot press.

[0009] According to some embodiments of the present application, the leveling mechanism includes a pressure spring, a connecting shaft and a first assembly plate, the connecting shaft is arranged between the pressure spring and the first extrusion head, and the two ends of the connecting shaft are respectively installed in cooperation with the pressure spring and the first extrusion head; the first assembly plate is provided with a first through hole, and the connecting shaft is slidably arranged in the first through hole.

[0010] In the above technical solution, the pressure spring is used to convert the received input power into a leveling force acting on the first extrusion head, so that the first extrusion head can output the same force to all parts of the extrusion part to be extruded. The connecting shaft is arranged between the pressure spring and the first extrusion head. A first through hole is provided on the first assembly plate. The connecting shaft can be slidably arranged in the first through hole. The hot press includes a first assembly plate. A first through hole is provided on the first assembly plate. The connecting shaft can be slidably arranged in the first through hole. The first assembly plate is close to the first extrusion head. One end of the connecting shaft connected to the pressure spring is arranged in the first through hole. The pressure spring is also arranged in the first through hole. The pressure spring contacts the inner wall of the first through hole. The telescopic path of the pressure spring is limited by the first through hole, ensuring that the first extrusion head can move stably along the first direction.

[0011] According to some embodiments of the present application, the leveling mechanism further includes a first guide plate, the first guide plate is provided with a second through hole, and the connecting shaft is slidably disposed in the second through hole.

[0012] In the above technical solution, the shaft body of the connecting shaft contacts the inner wall of the second through hole. The second through hole limits the movable path of the connecting shaft by restricting the shaft body of the connecting shaft, and guides the sliding direction of the connecting shaft along the first direction. This structure can make the hot pressing process of the hot pressing machine on the workpiece to be pressed more stable.

[0013] According to some embodiments of the present application, the first assembly plate, the connecting member, the second assembly plate and the first guide plate are relatively fixedly connected and move as a whole relative to the base, and the diameter of the first through hole is larger than the diameter of the second through hole.

[0014] According to some embodiments of the present application, the hot press further includes a distance measuring mechanism, which is used to measure the moving distance of the first extrusion head along the first direction.

[0015] In the above technical solution, the distance measuring mechanism can prevent the first extrusion head from over-extruding the limit shaft, prevent the limit shaft from deformation and damage, so that the height difference between the limit shaft and the extrusion surface of the second extrusion head remains stable, ensuring that the hot press provided in this application has a stable processing effect on the workpiece to be pressed.

[0016] In the above technical solution, the diameter of the first through hole is larger than the diameter of the second through hole, and the first through hole and the second through hole are coaxially arranged through hole structures. The pressure spring contacts the inner wall of the first through hole without passing through the second through hole, thereby limiting the length of the telescopic path of the pressure spring, thereby limiting the moving distance of the connecting shaft, preventing the connecting shaft from detaching from the first guide shaft and the first assembly plate, and ensuring the structural integrity of the hot press.

[0017] According to some embodiments of the present application, the hot press further includes a second assembly plate, the second assembly plate is movably mounted on the base, and the first extrusion head is mounted on the second assembly plate.

[0018] In the above technical solution, the first extrusion head is connected to the base through the second assembly plate. This structure can strengthen the connection strength between the first extrusion head and the base and improve the overall stability between the first extrusion head and the base.

[0019] According to some embodiments of the present application, a first temperature control device is provided on the second assembly plate, and the first temperature control device is used to control the hot pressing temperature of the first extrusion head.

[0020] In the above technical solution, a first temperature control device for heating the first extrusion head is provided on the second assembly plate. The first temperature control device allows the first extrusion head to maintain the temperature required for hot pressing before and during hot pressing, so that the first extrusion head can hot press the workpiece when it contacts it, eliminating the heating time required for intermittent heating and maintaining the hot pressing temperature, so that the hot pressing process of the workpiece to be pressed can be carried out continuously, thereby improving the processing efficiency of the hot press.

[0021] In the above technical solution, the first temperature control device can obtain the temperature information of the first extrusion head in a timely manner and display it, such as through a temperature sensor, so that the operator can control the specific situation of the first extrusion head in a timely manner according to the temperature information, making the processing parameters of the hot press more intuitive and effectively improving the safety of the hot press.

[0022] According to some embodiments of the present application, the hot press further includes a second temperature control device, which is used to control the temperature of the second extrusion head.

[0023] In the above technical solution, the second temperature control device can timely preheat or cool down the workpiece to be pressed on the second extrusion head, so that the workpiece to be pressed can reach a suitable temperature during and after hot pressing, avoiding deformation of the workpiece to be pressed due to temperature reasons, and ensuring the stability of the shape and quality of the finished product processed by the hot press.

[0024] According to some embodiments of the present application, the hot press further includes a limiting shaft, which is arranged on the base along the first direction; the contact surface between the limiting shaft and the first extrusion head is higher than the end surface of the second extrusion head on which the workpiece to be pressed is placed.

[0025] In the above technical solution, the second extrusion head is arranged in the limiting shaft, and there is a height difference between the contact surface of the limiting shaft and the first extrusion head and the side of the second extrusion head close to the first extrusion head. This height difference will be the thickness of the pressed part. This structure controls the thickness of the pressed part relatively simply and intuitively. It is stable in structure and easy to use, which effectively improves the problem of poor thickness control effect of the existing hot press on the pressed finished product.

[0026] According to some embodiments of the present application, the hot press also includes a first adjusting device, which includes a first support member, a first push plate, a second push plate and a first driving device, wherein the first push plate is installed on the first support member; the second push plate is installed on the side of the first support member away from the first push plate, and the second push plate is used to push the limit shaft up and down; the first push plate is installed at the output end of the first driving device, and the first driving device is used to drive the limit shaft to move along the first direction.

[0027] In the above technical solution, the first push plate and the second push plate are respectively arranged at both ends of the first support member, the limit shaft is arranged on the second push plate, the first push plate is connected to the output end of the first driving device, the first driving device is used to drive the limit shaft to move along the first direction, the first push plate, the first support member and the second push plate are supported between the first driving device and the limit shaft, and the movement of the limit shaft can change the height difference between itself and the contact surface of the first extrusion head and the surface of the second extrusion head close to the first extrusion head, thereby changing the thickness of the pressed product. This structure makes the thickness of the finished product pressed by the hot press adjustable and the effect stable, so that the hot press can adapt to the processing requirements of various thicknesses of parts to be pressed, thereby expanding the application scope of the hot press.

[0028] According to some embodiments of the present application, the first support member includes a first spring and a first bearing platform, and the two ends of the first spring are respectively connected to the first push plate and the second push plate; the first bearing platform is fixed on the first push plate, and the first spring is sleeved on the outside of the first bearing, and there is a gap between the first bearing platform and the second push plate.

[0029] In the above technical solution, the two ends of the first spring are respectively connected to the first push plate and the second push plate, and the first bearing platform is arranged on the inner side of the first spring and connected to the first push plate. When the first extrusion head abuts the limit shaft, the first spring can shrink under the pressure of the force, eliminating the vibration received by the limit shaft from the pressing position, so that the pressing can be carried out smoothly. At the same time, the first bearing platform can support the second push plate after the second push plate is forced to push the first spring to shrink a certain distance. At this time, the contraction of the first spring is used to level the force of the second push plate acting on the limit shaft, so that the push plate can evenly adjust the lifting height of the limit shaft to ensure the accuracy of the height difference formed between the adjusted limit shaft and the surface of the second extrusion head in the subsequent hot pressing process. At the same time, it can also make the second push plate act evenly on the first bearing platform. At this time, the first bearing platform provides a rigid support surface to ensure the accuracy of the up and down adjustment to obtain a pressed product with good surface performance.

[0030] According to some embodiments of the present application, the first support member includes a second spring and a second bearing platform, and the two ends of the second spring are respectively installed in contact with the first push plate and the second push plate; the second bearing platform is provided with a first hole, the second spring is arranged in the first hole, the second bearing platform is fixed to the first push plate, and there is a gap between the second bearing platform and the second push plate.

[0031] In the above technical solution, the inner wall of the first hole contacts the second spring, and the extension and contraction path of the second spring is thereby limited by the second bearing platform, effectively preventing the second spring from deviating in direction and improving the structural stability of the first support member. There is a gap between the second bearing platform and the second push plate, and the second bearing platform can support the second push plate after the second push plate is forced to push the second spring to contract a certain distance. At this time, the contraction of the second spring is used to level the force of the second push plate acting on the limit shaft, so that the push plate can evenly adjust the lifting height of the limit shaft to ensure the accuracy of the height difference between the adjusted limit shaft and the surface of the second extrusion head during the subsequent hot pressing process. At the same time, it can also enable the second push plate to evenly act on the second bearing platform. The second bearing platform now provides a rigid support surface to ensure the accuracy of the up and down adjustments to obtain a pressed product with good surface properties.

[0032] According to some embodiments of the present application, the hot press also includes a second adjusting device, the second adjusting device includes a second support member, a third push plate and a second driving device, the second extrusion head is arranged on the second support member; a third push plate is provided at the bottom of the second support member; the third push plate is installed at the output end of the second driving device, and the second driving device is used to drive the second extrusion head to move along the first direction.

[0033] In the above technical solution, the second extrusion head is arranged on the second support member, and the second support member is arranged at the output end of the second driving device through the third push plate. The second driving device is used to drive the second extrusion head to move along the first direction. The movement of the second extrusion head can change the height difference between its own surface close to the first extrusion head and the contact surface between the limiting axis and the first extrusion head, thereby changing the thickness of the pressed product. This structure makes the thickness of the finished product pressed by the hot press adjustable and the effect stable, allowing the hot press to adapt to the processing requirements of various thicknesses of parts to be pressed, thereby expanding the application scope of the hot press.

[0034] According to some embodiments of the present application, the second support member includes a third spring and a third bearing platform, and both ends of the third spring are respectively in contact with or connected to the third push plate and the second extrusion head; the third bearing platform is fixed to the third push plate, and the third spring is sleeved on the outside of the third bearing platform, and there is a gap between the third bearing platform and the second extrusion head.

[0035] In the above technical solution, the third spring can shrink under the pressure of the applied force, eliminating the vibration received by the second extrusion head from the pressing position, so that the pressing can be carried out smoothly. At the same time, the third bearing platform can support the second extrusion head after the second extrusion head is pushed by the force to shrink the third spring for a certain distance. At this time, the contraction of the third spring is used to level the force acting on the second extrusion head, so that the lifting height of the second extrusion head can be evenly adjusted to ensure the accuracy of the height difference formed by the contact surface between the adjusted second extrusion head and the limit shaft and the first extrusion head during the subsequent hot pressing process. At the same time, it can also make the second extrusion head act evenly on the third bearing platform. At this time, the third bearing platform provides a rigid support surface to ensure the accuracy of the up and down adjustments to obtain a pressed product with good surface properties.

[0036] According to some embodiments of the present application, the second support member includes a fourth spring and a fourth bearing platform, and the two ends of the fourth spring are respectively contacted, assembled or connected with the third push plate and the second extrusion head; the fourth bearing platform is provided with a second hole, the fourth bearing platform is fixed to the third push plate, and the fourth spring is provided in the second hole, and there is a gap between the fourth bearing platform and the second extrusion head.

[0037] In the above technical solution, the inner wall of the second hole contacts the fourth spring, and the extension and contraction path of the fourth spring is thereby limited by the fourth bearing platform, effectively preventing the fourth spring from deviating in direction and improving the structural stability of the second support member. There is a gap between the fourth bearing platform and the second extrusion head, and the fourth spring can contract under the pressure of the applied force, leveling the force acting on the second extrusion head, so that the lifting height of the second extrusion head can be evenly adjusted to ensure the accuracy of the height difference formed by the contact surface between the adjusted second extrusion head and the limit shaft and the first extrusion head during the subsequent hot pressing process. At the same time, the fourth bearing platform can support the second extrusion head after the second extrusion head is pushed by the force to contract a certain distance. At this time, the contraction of the fourth spring is used to level the force acting on the second extrusion head, so that the lifting height of the second extrusion head can be evenly adjusted to ensure the accuracy of the height difference formed by the contact surface between the adjusted second extrusion head and the limit shaft and the first extrusion head during the subsequent hot pressing process. At the same time, it can also make the second extrusion head act evenly on the fourth bearing platform. The fourth bearing platform at this time provides a rigid support surface to ensure the accuracy of the up and down adjustment to obtain a pressed product with good surface properties.

[0038] According to some embodiments of the present application, a hot press is provided, comprising a base, a first extrusion head, a second extrusion head, a power unit, and a leveling mechanism. The first extrusion head is movably mounted on the base; the second extrusion head is positioned opposite the first extrusion head along a first direction; the power unit is configured to drive the first extrusion head toward the second extrusion head to extrude a workpiece positioned adjacent to the second extrusion head; and the leveling mechanism is mounted on the base, with the second extrusion head connected to the base via the leveling mechanism.

[0039] In the above technical solution, when the first extrusion head and the second extrusion head extrude the workpiece, the extrusion force is transmitted to the leveling mechanism. The leveling mechanism can absorb and adjust this force, and adjust the angle of the second extrusion head so that the force from the first extrusion head can act evenly on the second extrusion head, ensuring that the thickness of the finished product obtained by the hot press with this structure is consistent at all places, thereby improving the processing accuracy of the thickness of the finished product.

[0040] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 A schematic diagram of the internal structure of a heat press provided in some embodiments of the present application;

[0043] Figure 2 A schematic diagram of assembling a first temperature control device on a second assembly board provided in some embodiments of the present application;

[0044] Figure 3 A schematic diagram of assembling the second temperature control device on the third assembly board provided in some embodiments of the present application;

[0045] Figure 4 Schematic diagram of the hot press assembly provided for this application;

[0046] Figure 5 A schematic diagram of the structure of the hot press provided for this application;

[0047] Figure 6 A schematic diagram of the assembly of the hot press provided for this application;

[0048] Figure 7 A schematic structural diagram of a first support member provided in some embodiments of the present application;

[0049] Figure 8 A schematic structural diagram of a first support member provided in some embodiments of the present application;

[0050] Figure 9 A schematic structural diagram of a second support member provided in some embodiments of the present application;

[0051] Figure 10 A schematic structural diagram of a second support member provided in some embodiments of the present application;

[0052] Figure 11 A schematic diagram of the structure of a hot press provided in some embodiments of the present application;

[0053] Figure 12 Schematic diagram of the hot press assembly provided for some embodiments of the present application.

[0054] Icons: 10-base; 101-guide shaft; 102-connecting piece; 103-spring pressure plate; 104-first assembly plate; 105-first guide plate; 106-second assembly plate; 107-third assembly plate; 110-linear telescopic mechanism; 120-pressure spring; 130-connecting shaft; 140-first extrusion head; 150-second extrusion head; 160-limiting shaft; 200-first temperature control device; 201-temperature sensor; 300-second temperature control device; 410-second push plate; 420-first A push plate; 430-first driving device; 441-first supporting platform; 442-first spring; 443-second supporting platform; 444-second spring; 450-third push plate; 460-second driving device; 471-third supporting platform; 472-third spring; 473-fourth supporting platform; 474-fourth spring; x-first direction; 161-second mounting hole; 108-first stepped hole; 109-second stepped hole; 170-mounting base; 171-fifth supporting platform; 172-fourth push plate. DETAILED DESCRIPTION

[0055] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0056] In the description of this application, it should be noted that the terms "inner" and "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0057] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0058] The present application provides a hot press, which can improve the existing problems existing in the processing of the existing hot press, such as the angle or position of the extrusion head of the hot press is offset during the extrusion process, resulting in unstable thickness of the finished product, uneven surface of the workpiece to be pressed, uneven reaction force fed back to the extrusion head by the workpiece at each position during the contact between the extrusion head and the surface of the workpiece to be pressed, and the force applied by the extrusion head to the workpiece to be pressed is also affected by the surface of the workpiece to be pressed. The part of the workpiece to be pressed that protrudes from the extrusion head is subjected to greater force than the concave part, and the force of the extrusion head cannot be evenly distributed on the surface of the workpiece to be pressed, resulting in damage to the surface of the workpiece to be pressed, etc. The present invention is further described below in conjunction with the accompanying drawings, but the scope of protection of the present invention is not limited to the following.

[0059] Example 1: Figure 1 and Figure 4 As shown, the hot press shown in the embodiment of the present application includes a base 10, a power device, a first extrusion head 140 and a second extrusion head 150. The power device, the first extrusion head 140 and the second extrusion head 150 are installed on the base 10. The first extrusion head 140 is installed at the output end of the power device. The workpiece to be pressed is placed on the top surface of the second extrusion head 150. The power device is used to drive the first extrusion head 140 to move along the first direction x to extrude the workpiece to be pressed placed on the second extrusion head 150. During use, the first extrusion head 140 is driven by the power device to move toward the second extrusion head, and the distance between the first extrusion head 140 and the second extrusion head 150 is reduced. The first extrusion head 140 and the second extrusion head 150 extrude the workpiece to be pressed into a finished product; after the extrusion is completed, the first extrusion head 140 is driven by the power device to move away from the second extrusion head 150. The distance between the first extrusion head 140 and the second extrusion head 150 is convenient for removing the finished product from the second extrusion head 150 and replacing it with a new workpiece to be pressed.

[0060] Among them, a plurality of limit shafts 160 are provided on the periphery of the second extrusion head 150, and the plurality of limit shafts 160 are arranged at intervals around the center of the second extrusion head 150, and the limit shafts 160 are arranged on the base 10 along the first direction x; the contact surface between the limit shaft 160 and the first extrusion head 140 is closer to the first extrusion head 140 than the end surface of the second extrusion head 150 for carrying the workpiece to be pressed, and the limit shaft 160 and the second extrusion head 150 move relative to each other.

[0061] In some embodiments, the number of the limiting shafts 160 is 4, ensuring the effectiveness and stability of the leveling effect of the leveling mechanism; in other embodiments, the limiting shaft 160 is a sleeve structure, and is sleeved on the outside of the second extrusion head 150, thereby improving the overall stiffness of the limiting shaft 160 and ensuring the support effect on the first extrusion head 140.

[0062] In some embodiments, a distance measuring mechanism (such as a laser rangefinder, etc.) is also included for limiting the moving distance of the extrusion head to ensure the thickness of the pressed part. The distance measuring mechanism can prevent the first extrusion head 140 from over-extruding the limit shaft 160, prevent the limit shaft from being deformed or damaged, thereby keeping the height difference between the limit shaft 160 and the extrusion surface of the second extrusion head 150 stable, ensuring the stable processing effect of the hot press provided in this application on the pressed part. Specific usage methods include, for example: the distance measuring mechanism can measure the distance between the opposite surfaces of the first extrusion head 140 and the mounting base 170 (or other opposite surfaces that can show the position change of the first extrusion head 140 along the first direction), and drive the first extrusion head 140 to stop moving in the direction close to the second extrusion head 150 after reaching the rated distance, or the distance measuring mechanism is used to measure whether the surface of the first extrusion head 140 close to the second extrusion head 150 is in contact with the limit shaft 160. When the first extrusion head 140 is in contact with the limit shaft 160, the distance measuring mechanism will cut off the power to the first extrusion head 140 to prevent the first extrusion head 140 from continuing to move in the direction close to the second extrusion head 150, and prevent the limit shaft 160 from being damaged by excessive pressure from the first extrusion head 140.

[0063] During specific use, the first extrusion head 140 moves toward the second extrusion head 150 under the drive of the power device, and the first extrusion head 140 contacts and extrude the workpiece to be pressed. After the first extrusion head 140 continues the extrusion process for a period of time, the first extrusion head 140 abuts against the limiting shaft 160, and the limiting shaft 160 prevents the first extrusion head 140 from moving further, thereby ensuring the thickness of the extruded product, that is, the height difference between the surface of the limiting shaft 160 close to the first extrusion head 140 and the surface of the second extrusion head 150 close to the first extrusion head 140 is the final hot-pressed thickness value of the workpiece to be pressed.

[0064] Taking the workpiece to be pressed as a film as an example, the user can move the limit shaft 160 and the second extrusion head 150 relative to each other according to the thickness of the film required for processing, thereby adjusting the height difference between the surface of the limit shaft 160 close to the first extrusion head 140 and the surface of the second extrusion head 150 close to the first extrusion head 140, changing the thickness of the processed film, and allowing the hot press provided in this application to adapt to specific processing requirements to process finished products of different thicknesses, reducing the scope of application of the device, and facilitating promotion and application.

[0065] Further, such as Figure 4 As shown, the hot press also includes a leveling mechanism. The first extrusion head 140 is connected to the output end of the power device through the leveling mechanism. When the first extrusion head 140 extrudes the workpiece, the leveling mechanism can buffer and absorb the reaction force exerted on the first extrusion head 140.

[0066] On the one hand, the leveling mechanism can prevent the first extrusion head 140 from moving or offsetting the extrusion angle during the extrusion of the workpiece to be pressed. The first extrusion head 140 can adjust the contact balance between the first extrusion head 140 and the pressing surface during the pressure application process. Finally, when pressing on each limit shaft 160, the contact pressure balance between the first extrusion head 140 and the limit shaft 160 can be ensured, thereby avoiding uneven thickness on the surface of the extruded finished product, and allowing the thickness and precision of the finished product processed by the hot press provided in this application to always remain stable. The thickness dimensional accuracy of the workpiece to be pressed by the hot press can achieve a parallelism of less than 1μm.

[0067] On the other hand, the leveling mechanism has a retractable characteristic. When the first extrusion head 140 just contacts the workpiece to be pressed, the first extrusion head 140 will push the adjustment mechanism to retract under the drive of the reaction force, and can timely adjust the position of the first extrusion head 140 according to the specific force direction and position of the first extrusion head 140, ensuring that the first extrusion head 140 can apply uniform force to each position of the workpiece to be pressed that it contacts, effectively avoiding uneven force on the surface of the workpiece to be pressed, and making the surface of the finished product processed by the hot press provided in this application smooth and flat, with good surface performance and excellent surface roughness, and the arithmetic mean deviation of the finished product profile Ra (the arithmetic mean of the absolute value of the profile deviation of the finished product within the sampling length) is less than 200nm.

[0068] Among them, the power device includes a linear telescopic mechanism 110 and a connecting member 102. The linear telescopic mechanism 110 is arranged on the base 10. The connecting member 102 is connected to the output end of the linear telescopic mechanism 110. The linear telescopic mechanism 110 provides power for the first extrusion head 140 to extrude the workpiece to be extruded.

[0069] Furthermore, the leveling mechanism includes a pressure spring 120, a connecting shaft 130, and a first assembly plate 104. The hot press also includes a guide shaft 101. At least two guide shafts 101 are arranged on the base 10 along the first direction x. The pressure spring 120 is assembled at the output end of the power device. The pressure spring 120 is used to convert the received input power into a leveling force acting on the first extrusion head 140, allowing the first extrusion head 140 to output the same force to all parts of the workpiece to be pressed. The axial direction of the connecting shaft 130 is parallel to the first direction x. The connecting shaft 130 is arranged between the pressure spring 120 and the first extrusion head 140, and the pressure spring 120 and the first extrusion head 140 are respectively assembled at both ends of the connecting shaft 130. The first assembly plate 104 is provided with a plurality of first positioning holes, and the first assembly plate 104 slides with the plurality of guide shafts 101 through the plurality of first positioning holes. The first positioning holes correspond one-to-one to the guide shafts 101. The first assembly plate 104 is provided with a first through hole, and the connecting shaft 130 is slidably set in the first through hole. The first assembly plate 104 is close to the first extrusion head 140, and the end of the connecting shaft 130 that is in contact with or connected to the pressure spring 120 is set in the first through hole. The pressure spring 120 is also set in the first through hole. The pressure spring 120 contacts the inner wall of the first through hole, and the telescopic path of the pressure spring 120 is limited by the first through hole, ensuring that the first extrusion head 140 can move stably along the first direction x.

[0070] Furthermore, the leveling mechanism also includes a first guide plate 105, which is provided with a plurality of second positioning holes. The first guide plate 105 slides with the plurality of guide shafts 101 through the plurality of second positioning holes. The plurality of positioning holes correspond one-to-one to the plurality of guide shafts 101. The first guide plate 105 is provided with a second through hole. The connecting shaft 130 is slidably arranged in the second through hole. The shaft body of the connecting shaft 130 contacts the inner wall of the second through hole. The second through hole limits the movable path of the connecting shaft 130 by limiting the shaft body of the connecting shaft 130, and guides the sliding direction of the connecting shaft 130 along the first direction x. This structure can make the hot pressing process of the hot pressing machine for the workpiece to be pressed more stable.

[0071] Furthermore, the hot press also includes a second assembly plate 106, which is provided with a plurality of third positioning holes. The second assembly plate 106 slides with the guide shaft 101 through the plurality of third positioning holes. The plurality of third positioning holes correspond one-to-one to the plurality of guide shafts 101. The second assembly plate 106 is fixed to the first guide plate 105. The second assembly plate 106 is closer to the second extrusion head 150 than the first guide plate 105. This structure can strengthen the connection strength between the first extrusion head 140 and the base 10, and improve the overall stability between the first extrusion head 140 and the base 10.

[0072] Furthermore, the diameter of the first through-hole is larger than that of the second through-hole, and the first and second through-holes are coaxially arranged. A protrusion is provided on the top of the connecting shaft 130, and the end of the connecting shaft 130 provided with the protrusion is connected to the pressure spring 120. The protrusion of the connecting shaft 130 is movably disposed in the first through-hole, and the size of the second through-hole is sufficient to block the protrusion of the connecting shaft 130, effectively preventing the connecting shaft 130 from sliding out from between the first assembly plate 104 and the first guide plate 105, thereby maintaining the integrity of the overall structure of the device.

[0073] Among them, the connecting member 102, the first assembly plate 104, the first guide plate 105 and the second assembly plate 106 are relatively fixedly connected in sequence through threads along the first direction x through the guide shaft 101; the connecting member 102, the first assembly plate 104, the first guide plate 105 and the second assembly plate 106 are movably installed on the guide shaft 101. This structure synchronizes and unifies the movement effects of multiple components in the entire device, making the equipment integrity of the hot press stronger and improving the overall strength of the hot press.

[0074] During use, when the first extrusion head 140 does not contact the workpiece to be pressed, it is driven by the power device and moves along the overall assembly plate toward the second extrusion head 150. After the first extrusion head 140 contacts the workpiece to be pressed, it will retract upward for a certain distance under the action of the pressure spring 120. After the first extrusion head 140 retracts to the extreme position and abuts against the first guide plate 105, the leveling effect ends, and the first extrusion head 140 moves downward to press the workpiece to be pressed as the power device continues to apply pressure. The whole process acts in the first direction x shown in the figure.

[0075] Furthermore, the pressure spring 120 is connected to the output end of the linear telescopic mechanism 110 through a spring pressure plate 103. This structure can ensure the stability of the spring installation structure under the action of the pressure spring 120, so that the extrusion surface is evenly stressed, thereby pressing out a product with good surface performance.

[0076] For example, the spring pressure plate 103 can be fixed to the connector 102 by integral molding or threaded connection, thereby improving the overall rigidity of the structure; the spring pressure plate 103 can also be slidably connected to the connector 102, and the elastic force of the pressure spring 120 presses the spring pressure plate 103 against the connector 102. In such a structure, each component is independent, and the process of disassembly or replacement is simpler, which reduces the maintenance cost of the hot press and is conducive to the promotion of the hot press.

[0077] The second assembly plate 106 is further provided with a first stepped hole 108 for assembling the first extrusion head 140. The stepped portion of the stepped hole is provided on the side of the stepped hole close to the second extrusion head 150. The outer side of the first extrusion head 140 is provided with an annular protrusion corresponding to the stepped portion of the stepped hole. The protrusion of the first extrusion head 140 is adapted and clamped by the stepped portion of the second assembly plate 106. The distance between the side of the stepped portion of the first stepped hole 108 facing away from the second extrusion head 150 and the first guide plate 105 is greater than the height of the first extrusion head 140. The difference in distance between the two can serve as an adjustment gap for the first extrusion head 140, providing space for the first extrusion head 140 to self-adjust under the action of the pressure spring 120. This structure enables the first extrusion head 140 to have higher stability while still maintaining the stable and adjustable effect obtained by the pressure spring 120. That is: the first extrusion head 140 is an axis of a stepped structure, and the corresponding first stepped hole 108 is provided on the second assembly plate 106 to which it is installed, so that the first extrusion head 140 can be easily installed, and it can move / slide in the first stepped hole 108 on the second assembly plate 106 while not falling out; under natural assembly, the end face of the first extrusion head 140 on one side of the first guide plate 105 is lower than the installation end face of the second assembly plate 106 and the first guide plate 105, so as to ensure that the first extrusion head 140 has a certain sliding gap in the first stepped hole 108, which is used to cooperate with the leveling mechanism.

[0078] Further, such as Figure 2 As shown, a first temperature control device 200 is provided on the second assembly plate 106. The first temperature control device 200 will preheat the first extrusion head 140 before pressing, so that the first extrusion head 140 reaches the hot pressing temperature, and continuously heat the surface of the workpiece to be pressed during the extrusion molding process to continuously ensure the temperature required for hot pressing, so that the surface of the workpiece to be pressed can become flat and fit under the action of heat.

[0079] The mechanism for heating and raising the temperature in the first temperature control device 200 may be a heating rod, a heating plate, an electric heating pipe, etc., which is not limited here.

[0080] The second assembly plate 106 is provided with a plurality of heating mounting holes. The first temperature control device 200 is installed in these heating mounting holes on the second assembly plate 106. The first temperature control device 200 is arranged around the first extrusion head 140. The heat of the first temperature control device 200 can be transferred to the first extrusion head 140 more quickly, reducing the amount of heat loss during the transmission process. The first temperature control device 200 also includes a temperature sensor 201, which is also installed on the second assembly plate 106. The temperature sensor 201 is used to measure the hot pressing temperature, allowing the hot press to adjust the temperature of the heating rod in a timely manner according to the type of workpiece to be pressed and the specific processing conditions. This allows the hot press to meet the processing requirements of a variety of workpieces to be pressed, ensure the quality of the finished product obtained by the hot press, expand the scope of application of the hot press, and facilitate the promotion of the hot press.

[0081] Further, such as Figure 3 As shown, the hot press further includes a third assembly plate 107, which is fixed to the base 10. The third assembly plate 107 is provided with a plurality of fourth positioning holes, and the plurality of guide shafts 101 are adapted to be disposed in the plurality of fourth mounting holes. A second temperature control device 300 is disposed in the third assembly plate 107. It should be noted that in the present application, both the first temperature control device and the second temperature control device can achieve the functions of heating, cooling, and temperature monitoring to meet the temperature requirements during use of the hot press.

[0082] In this embodiment, the second temperature control device 300 is mainly used to control the temperature of the second extrusion head 150 to ensure the structural and quality stability of the pressed product.

[0083] Exemplarily, the second temperature control device 300 is a cooling pipe connected to the outside world, which cools the workpiece by feeding a flowing cooling medium into the pipe. The cooling medium can be water, oil, an ethanol mixture, flowing cold air, etc. The cooling medium removes some heat from the second extrusion head 150 and the workpiece to be pressed, preventing the workpiece from melting due to excessive temperature. Furthermore, when the hot press temperature needs to be adjusted to change the type of workpiece being processed, the second temperature control device 300 can also help quickly cool the workpiece, thereby improving the safety of the hot press during processing.

[0084] The third assembly plate 107 is provided with a plurality of second mounting holes 161 . The plurality of second mounting holes 161 correspond to the plurality of limiting shafts 160 one by one. The limiting shafts 160 are slidably disposed in the second mounting holes 161 .

[0085] Example 2: On the basis of Example 1, according to the hot press shown in the embodiment of the present application, the hot press also includes a first adjusting device, the first adjusting device includes a first support member, a first push plate 420, a second push plate 410 and a first driving device 430, the first push plate 420 is connected to the output end of the first driving device 430, the limit shaft 160 is arranged on the second push plate 410, and the first support member is installed between the first push plate 420 and the second push plate 410; the first driving device 430 is used to drive the limit shaft 160 to move along the first direction x, and the first adjusting device is used to adjust the height of the limit shaft 160 extending out of the third assembly plate 107 to adjust the height difference between the limit shaft 160 and the second extrusion head 150, thereby realizing the pressing of finished products with different thickness requirements, simplifying the use process of the hot press, and making it easier to promote.

[0086] Example 3: Based on Example 2, Figure 7 As shown, the first support member includes a first spring 442 and a first bearing platform 441. The first bearing platform 441 is fixed on the first push plate 420. The first spring 442 is sleeved on the outside of the first bearing platform 441, and the two ends of the first spring 442 are respectively abutted against the first push plate 420 and the second push plate 410. The top end of the second push plate 410 is used to push the limiting shaft 160. There is a gap between the first bearing platform 441 and the second push plate 410.

[0087] The first spring 442 can use its own elasticity to help the limit shaft 160 adjust the position and angle. At the same time, the first support member is used to output uniform pressure when pushing the limit shaft 160, thereby ensuring the adjustment accuracy of the limit shaft 160 and ensuring that the surface of the finished product processed by the hot press is flat and the thickness is uniform.

[0088] In addition, when the limit shaft 160 is subjected to continuous pressure, the first spring 442 will continue to contract under the action of pressure, leveling the force acting on the limit shaft 160, so that the second push plate 410 can evenly adjust the lifting height of the limit shaft 160 to ensure the accuracy of the height difference between the adjusted limit shaft 160 and the surface of the second extrusion head 150 during the subsequent hot pressing process. When the limit shaft 160 drops to a certain height as the first spring 442 contracts, the bottom of the second push plate 410 contacts the supporting platform to prevent the second push plate 410 from continuing to drop, ensuring that the descending distance of the limit shaft 160 will not affect the thickness of the finished product processed by the hot press. In other words, the adjustment distance of the limit shaft 160 includes the descending distance here to ensure the effective pressing thickness of the product and the product quality of the hot press.

[0089] After adjusting the height, the first extrusion head 140 acts evenly on the limiting shaft 160. At this time, the hot pressing pressure is greater than the elastic force of the first spring 442 in the first adjusting device. The second push plate 410 acts evenly on the supporting platform. The supporting platform provides a rigid support surface to ensure the adjusted accuracy to obtain a pressed product with good surface properties.

[0090] Example 4: Based on Example 2, Figure 8 As shown, the first support member includes a second spring 444 and a second bearing platform 443. The second bearing platform 443 is provided with a first hole. The second bearing platform 443 is fixed on the first push plate 420. The second spring 444 is provided in the first hole. The second spring 444 is respectively abutted or connected to the first push plate 420 and the second push plate 410. There is a gap between the second bearing platform 443 and the second push plate 410.

[0091] The first hole is a hole for accommodating the second spring 444 , and can be a blind hole or a through hole.

[0092] The second spring 444 can use its own elasticity to help the limiting shaft 160 adjust its position and angle. At the same time, the first support member can also output uniform pressure when pushing the limiting shaft 160, ensuring the adjustment accuracy of the limiting shaft 160 and ensuring that the surface of the finished product processed by the hot press is flat and uniform in thickness. The second spring 444 is set in the first hole, and the inner wall of the second bearing platform 443 can limit the extension and contraction direction of the second spring 444 to ensure the stability of the movement path of the limiting shaft 160; after adjusting the height, the first extrusion head 140 acts evenly on the limiting shaft 160. At this time, the hot pressing pressure is greater than the elastic force of the second spring 444 in the first adjustment device. The second push plate 410 acts evenly on the bearing platform. The bearing platform now provides a rigid support surface to ensure the adjusted accuracy and obtain a pressed product with good surface properties.

[0093] Example 5: On the basis of Example 1, the hot press shown in the embodiment of the present application further includes a second adjusting device, the second adjusting device includes a second support member and a second drive device 460, the second extrusion head 150 is arranged on the second support member, and a third push plate 450 is provided at the bottom of the second support member, and the third push plate 450 is installed at the output end of the second drive device 460. This structure realizes the height difference between the limiting shaft 160 and the second extrusion head 150 by adjusting the height of the second extrusion head 150 to achieve the preparation of finished products of different thicknesses. The hot press with this device has a simple structure, is easy to operate, and is convenient for promotion of the hot press.

[0094] Furthermore, the third assembly plate 107 is provided with a second stepped hole 109, and the second extrusion head 150 is arranged in the second stepped hole 109, and the stepped portion of the second stepped hole 109 is arranged on a side close to the first extrusion head 140, and the outer peripheral surface of the second extrusion head 150 on the side away from the first extrusion head 140 is provided with an annular protrusion corresponding to the size of the stepped portion of the second stepped hole 109. The end face of the second extrusion head 150 for placing the workpiece to be pressed is closer to the first extrusion head 140 than the third assembly plate 107, and the second extrusion head 150 moves along the first direction x in the second stepped hole 109 under the drive of the second driving device 460.

[0095] Example 6: Based on Example 5, Figure 9 As shown, the second support member includes a third spring 472 and a third bearing platform 471. The third bearing platform 471 is fixed to the third push plate 450. The third spring 472 is sleeved on the outside of the third bearing platform 471, and the two ends of the third spring 472 are respectively abutted or connected to the third push plate 450 and the second extrusion head 150. There is a gap between the third bearing platform 471 and the second extrusion head 150.

[0096] The third spring 472 can use its own elasticity to help the limit shaft 160 adjust the position and angle. At the same time, the second support member is used to output uniform pressure when pushing the limit shaft 160, thereby ensuring the adjustment accuracy of the limit shaft 160 and ensuring that the surface of the finished product processed by the hot press is flat and the thickness is uniform; after adjusting the height, the first extrusion head 140 acts evenly on the limit shaft 160. At this time, the hot pressing pressure is greater than the elastic force of the third spring 472 in the second adjustment device, and the second extrusion head 150 acts evenly on the supporting platform. The supporting platform now provides a rigid support surface to ensure the adjusted accuracy to obtain a pressed product with good surface properties.

[0097] Example 7: Based on Example 5, Figure 10 As shown, the second support member includes a fourth spring 474 and a fourth bearing platform 473. The fourth bearing platform 473 is provided with a second hole. The fourth bearing platform 473 is fixed on the third push plate 450. The fourth spring 474 is provided in the second hole. The fourth spring 474 is respectively abutted or connected to the third push plate 450 and the second extrusion head 150. There is a gap between the fourth bearing platform 473 and the second extrusion head 150.

[0098] The second hole is a hole for accommodating the fourth spring 474 , and can be a blind hole or a through hole.

[0099] The fourth spring 474 can use its own elasticity to help the limit shaft 160 to adjust the position and angle. At the same time, the second support member is used to output uniform pressure when pushing the limit shaft 160, thereby ensuring the adjustment accuracy of the limit shaft 160 and ensuring that the surface of the finished product processed by the hot press is flat and the thickness is uniform; the fourth spring 474 is arranged in the second hole, and the inner wall of the fourth bearing platform 473 can limit the extension and contraction direction of the fourth spring 474 to ensure that the movement path of the second extrusion head 150 is stable; after adjusting the height, the first extrusion head 140 acts evenly on the limit shaft 160. At this time, the hot pressing pressure is greater than the elastic force of the fourth spring 474 in the second adjusting device, and the second extrusion head 150 acts evenly on the bearing platform. The bearing platform now provides a rigid support surface to ensure the adjusted accuracy to obtain a pressed product with good surface properties.

[0100] Example 8: This embodiment differs from the previous embodiment in that the direction of the power output of the pressing is reversed, as shown in FIG. Figure 5 and Figure 6 As shown, a hot press includes a base 10, a first extrusion seat, a second extrusion seat and a power device. The second extrusion head 150 is installed on the base 10, the first extrusion head 140 is connected to the output end of the power device, and the workpiece to be pressed is placed on the first extrusion head 140. The first extrusion head 140 moves along the first direction x under the drive of the power device, and the first extrusion head 140 rises. The first extrusion head 140 and the second extrusion head 150 extrude the workpiece to be pressed into shape. This structure can make the workpiece to be pressed fit more closely and fitly with the second extrusion head 150 under the push of air pressure during the rising process of the second extrusion head 150, so that the workpiece to be pressed is not easily displaced before pressing begins, and is adaptable to various processing environments.

[0101] Embodiment 9: The difference between this embodiment and the previous embodiment is that the leveling mechanism is arranged on one side of the second extrusion head 150, such as Figure 11 As shown, a hot press includes a base 10, a first extrusion head 140, a second extrusion head 150, a power device, a leveling mechanism, a mounting base 170, a fifth supporting platform 171, and a fourth push plate 172.

[0102] The leveling mechanism includes a pressure spring 120, a mounting base 170 and a fifth bearing platform 171 installed on the base 10, the first extrusion head 140 is installed at the output end of the power device, the first extrusion head 140 and the second extrusion head 150 are arranged opposite to each other along the first direction x, a third through hole is opened on the mounting base 170, the pressure spring 120 is arranged in the third through hole of the mounting base 170, the second extrusion head 150 is arranged on the fourth push plate 172, and the two ends of the pressure spring 120 are respectively abutted or connected to the base 10 and the fourth push plate 172. The second extrusion head 150 is movably mounted within the third through-hole. The fifth support platform 171 is disposed within the third through-hole and is located inside the pressure spring 120. A gap exists between the fifth support platform 171 and the second extrusion head 150, allowing for leveling with the pressure spring 120. The fifth support platform 171 ensures that after adjustment, it provides a rigid surface for pressing the workpiece. A power unit is disposed within the base 10 and is used to drive the first extrusion head 140 to move in the first direction x. This mechanism allows for adjustment of the spring position and changes the adjustment target of the pressure spring 120 to the second extrusion head 150, making the structure of the hot press more versatile and adaptable to a wider range of usage environments.

[0103] Example 10: This example is basically the same as Example 9, except that the installation position of the pressure spring 120 is changed, such as Figure 12 As shown, a hot press includes a base 10, a first extrusion head 140, a second extrusion head 150, a power device, a leveling mechanism, a mounting base 170, a fifth bearing platform 171 and a fourth push plate 172.

[0104] The leveling mechanism includes a pressure spring 120, a mounting base 170 and a fifth bearing platform 171 installed on the base 10, the first extrusion head 140 is installed at the output end of the power device, the first extrusion head 140 and the second extrusion head 150 are arranged opposite to each other along the first direction x, a third through hole is opened on the mounting base 170, the pressure spring 120 is arranged in the third through hole of the mounting base 170, the second extrusion head 150 is arranged on the fourth push plate 172, and the two ends of the pressure spring 120 are respectively abutted or connected to the base 10 and the second extrusion head 150. The second extrusion head 150 is movably installed in the third through hole, the fifth supporting platform 171 is arranged in the third through hole, the fifth supporting platform 171 is provided with a third hole, the pressure spring 120 is arranged in the third hole, and there is a gap between the fifth supporting platform 171 and the second extrusion head 150, which is used to match the pressure spring 120 for leveling. The fifth supporting platform 171 ensures that a rigid surface can be provided after the adjustment is completed to realize the pressing of the workpiece to be pressed. The power device is arranged on the base 10, and the power device is used to drive the first extrusion head 140 to move along the first direction x.

[0105] This mechanism can adjust the spring position and change the adjustment object of the pressure spring 120 to the second extrusion head 150. The structure of the hot press is more versatile and can adapt to more usage environments; the telescopic path of the pressure spring 120 is limited by the hole wall of the third hole, avoiding the directional deviation of the second extrusion head 150 and ensuring the processing stability of the hot press.

[0106] The third hole is a hole for accommodating the pressure spring 120 , and can be a blind hole or a through hole.

[0107] Example 11: A hot press comprises a base 10, a first extrusion head 140, a second extrusion head 150, and two power devices, wherein the two power devices are arranged on the base 10 relative to each other along a first direction x.

[0108] The first extrusion head 140 is connected to the output end of one power device, and the second extrusion head 150 is connected to the output end of another power device. The workpiece to be pressed is placed on the second extrusion head 150, and the two power devices are used to drive the first extrusion head 140 and the second extrusion head 150 to move toward each other relative to the base 10. The first extrusion head 140 and the second extrusion head 150 press the workpiece to be pressed placed on the second extrusion head 150 into shape. This embodiment provides a hot press that allows the first extrusion head 140 and the second extrusion head 150 to move synchronously to press the workpiece to be pressed. Under the premise that the pressing stroke is a fixed value, the two extrusion heads can each bear half of the pressing stroke, so that the hot press only uses half of the normal pressing time to complete the hot pressing operation of the workpiece to be pressed, thereby speeding up the processing efficiency of the hot press.

[0109] Furthermore, the hot press includes at least one leveling mechanism. The first extrusion head 140 is connected to the power unit via one leveling mechanism, and / or the second extrusion head 150 is connected to the power unit via another leveling mechanism. The leveling mechanism can adjust the force applied to the first extrusion head 140 and / or the second extrusion head 150, allowing the first extrusion head 140 and / or the second extrusion head 150 to press the workpiece evenly and smoothly, ensuring that the finished product produced by the hot press has high thickness accuracy and good surface properties.

[0110] It should be noted that, unless there is any conflict, the features in the embodiments of this application can be combined with each other.

[0111] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A hot press, characterized in that: include: base; a first extrusion head movably disposed on the base; a second extrusion head, disposed on the base along a first direction opposite to the first extrusion head; a power device, configured to drive the first extrusion head to approach the second extrusion head, so as to extrude the workpiece to be extruded disposed on the second extrusion head; a leveling mechanism, disposed at an output end of the power device, wherein the first extrusion head is connected to the power device via the leveling mechanism; The leveling mechanism comprises: a pressure spring, configured to convert received input power into a leveling force acting on the first extrusion head; a connecting shaft, the connecting shaft being arranged between the pressure spring and the first extrusion head; A first assembly plate is provided with a first through hole, and the connecting shaft is slidably disposed in the first through hole. a first guide plate, wherein the first guide plate is provided with a second through hole, and the connecting shaft is slidably disposed in the second through hole; The hot press further includes a second assembly plate, the second assembly plate being movably mounted on the base, and the first extrusion head being mounted on the second assembly plate; The first extrusion head is movably / slidably arranged on the second assembly plate; A first stepped hole is also provided on the second assembly plate. The distance between the side of the stepped portion of the first stepped hole facing away from the second extrusion head and the first guide plate is greater than the height of the first extrusion head, that is, the distance difference between the two can be used as an adjustment gap for the first extrusion head, which is used to provide a movable space for the first extrusion head to perform self-adjustment under the action of the pressure spring.

2. The hot press according to claim 1, characterized in that The power unit comprises: Linear telescopic mechanism; A connecting piece is connected to the power output shaft of the linear telescopic mechanism; the power output end of the connecting piece acts on the first extrusion head through a leveling mechanism.

3. The hot press according to claim 1, characterized in that The first assembly plate is fixedly connected to the first guide plate along a first direction, and a diameter of the first through hole is greater than a diameter of the second through hole.

4. The hot press according to claim 1, characterized in that The hot press further includes a distance measuring mechanism, which is used to measure the moving distance of the first extrusion head along the first direction.

5. The hot press according to claim 1, characterized in that The first extrusion head is a shaft of a stepped structure, and a corresponding first stepped hole is provided on the second assembly plate. The first extrusion head can move / slide in the first stepped hole on the second assembly plate without falling out.

6. The hot press according to claim 5, characterized in that The second assembly plate is provided with a first temperature control device, and the first temperature control device is used to control the hot pressing temperature of the first extrusion head.

7. The hot press according to claim 1, characterized in that The hot press also includes: A second temperature control device is used to control the temperature of the second extrusion head.

8. The hot press according to claim 1, characterized in that The hot press further includes: a limiting shaft, which is arranged on the base along the first direction; a contact surface between the limiting shaft and the first extrusion head is closer to the first extrusion head than an end surface of the second extrusion head for carrying the workpiece to be pressed.

9. The hot press according to claim 8, characterized in that The hot press further includes a first regulating device, the first regulating device comprising: a first support member; a first push plate, the first push plate being mounted on the first support member; a second push plate, the second push plate being mounted on a side of the first support member away from the first push plate, the second push plate being used to push the limiting shaft up and down; A first driving device, wherein the first push plate is installed at an output end of the first driving device, and the first driving device is used to drive the limiting shaft to move along a first direction.

10. The hot press according to claim 9, characterized in that The first support member comprises: a first spring, wherein both ends of the first spring are connected to the first push plate and the second push plate respectively; The first bearing platform is fixed on the first push plate, the first spring is sleeved on the outside of the first bearing platform, and there is a gap between the first bearing platform and the second push plate.

11. The hot press according to claim 9, characterized in that The first support member comprises: a second spring, wherein both ends of the second spring are respectively connected to the first push plate and the second push plate; The second bearing platform is provided with a first hole, the second spring is arranged in the first hole, the second bearing platform is fixed to the first push plate, and there is a gap between the second bearing platform and the second push plate.

12. The hot press according to claim 8, characterized in that The hot press also includes a second regulating device, which includes: a second support member, wherein the second extrusion head is disposed on the second support member; A third push plate is provided at the bottom of the second support member; The second driving device, the third push plate is installed at the output end of the second driving device, and the second driving device is used to drive the second extrusion head to move along the first direction.

13. The hot press according to claim 12, characterized in that The second support member comprises: a third spring, two ends of the third spring being in contact with or connected to the third push plate and the second extrusion head respectively; A third bearing platform is fixed on the third push plate, the third spring is sleeved on the outside of the third bearing platform, and there is a gap between the third bearing platform and the second extrusion head.

14. The hot press according to claim 12, characterized in that The second support member comprises: a fourth spring, two ends of the fourth spring being in contact with or connected to the third push plate and the second extrusion head respectively; The fourth bearing platform is provided with a second hole, the fourth spring is arranged in the second hole, the fourth bearing platform is fixed to the third push plate, and there is a gap between the fourth bearing platform and the second extrusion head.

15. A hot press, characterized in that: include: base; a first extrusion head movably disposed on the base; a second extrusion head, arranged opposite to the first extrusion head along a first direction; a power device, configured to drive the first extrusion head to approach the second extrusion head, so as to extrude the workpiece to be extruded disposed on the second extrusion head; a leveling mechanism, disposed on the base, wherein the second extrusion head is connected to the base via the leveling mechanism; The leveling mechanism comprises: The leveling mechanism includes a pressure spring, a fourth push plate, a mounting base mounted on the base, and a fifth bearing platform; A third through hole is provided on the mounting base, the pressure spring is arranged in the third through hole, the second extrusion head is arranged on the fourth push plate, and both ends of the pressure spring are respectively abutted or connected with the base and the fourth push plate; the second extrusion head is movably installed in the third through hole, the fifth bearing platform is arranged in the third through hole, and the fifth bearing platform is located on the inner side of the pressure spring, and there is a gap between the fifth bearing platform and the second extrusion head for adapting the pressure spring for leveling.

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