Hot press

Abstract

The utility model discloses a hot press which is characterized in that two hot pressing plates on the outermost side of the hot press are a first pressing plate and a second pressing plate respectively in the pressing direction of the hot press; the hot press comprises a heat insulation plate; at least one heat insulation plate is arranged on the surface, deviating from the second pressing plate, of the first pressing plate, and / or at least one heat insulation plate is arranged on the surface, deviating from the first pressing plate, of the second pressing plate; the heat insulation plate comprises a plurality of sub-plates which are spliced together, and the heat insulation surfaces of the sub-plates are coplanar. After the daughter boards are spliced together, the heat insulation faces of the daughter boards jointly form a complete heat insulation face, compared with the complete heat insulation face, the heat insulation sizes of the daughter boards are small, the flatness of the heat insulation faces of the daughter boards produced in a die pressing mode and the like is high, grinding is not needed in the follow-up process, or the grinding amount is small. Therefore, the manufacturing cost of the heat insulation plate can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of PCB processing especially relates to a hot press. BACKGROUND

[0002] The hot press is the most important core equipment in the PCB (Printed Circuit Board) pressing process, which realizes the crosslinking reaction of resin material under the environment of high temperature, high pressure and low vacuum, so that the resin material is tightly combined with the copper foil layer. In the production process, the temperature inside the hot press is usually above 260 DEG C. In order to reduce energy conduction and single machine energy consumption, the industry usually sets up the heat insulation plate on the upper surface of the uppermost hot plate and the lower surface of the lowermost hot plate of the press.

[0003] However, the size of the hot plate of the press is usually large, so that the size of the heat insulation plate is large. In order to ensure the flatness of the heat insulation plate, the surface of the heat insulation plate usually needs to be ground after being molded, which leads to high manufacturing cost of the heat insulation plate and high cost of the whole press. SUMMARY

[0004] The utility model discloses a heat insulation plate and hot press, and aims at solving the problem of large size of the heat insulation plate of the existing hot press, usually needs to grind the surface of the heat insulation plate after molding, which leads to high manufacturing cost of the heat insulation plate.

[0005] The utility model discloses a hot press, in the hot press's pressing direction, the two hot press plates of the outermost side of the hot press are first pressure plate and second pressure plate respectively, the hot press includes heat insulation plate, the surface of first pressure plate is equipped with at least one heat insulation plate away from second pressure plate, and / or, the surface of second pressure plate is equipped with at least one heat insulation plate away from first pressure plate, the heat insulation plate includes a plurality of spliced together sub-boards, and the heat insulation surface of each sub-board is coplanar.

[0006] Optionally, the surface of the sub-plate close to the hot press plate is the heat insulation surface, and the surfaces of each sub-plate away from the hot press plate are coplanar.

[0007] Optionally, the surface of the sub-plate close to the hot press plate is a plane, and / or the surface of the sub-plate away from the hot press plate is a plane.

[0008] Optionally, each sub-plate is a cuboid structure.

[0009] Optionally, the heat insulation plate includes a first plate and a second plate, the first plate and the second plate each include at least one sub-plate, the second plate is arranged at the periphery of the first plate and in contact with the first plate.

[0010] Optionally, the second plate is arranged around the first plate.

[0011] Optionally, the first plate is a quadrilateral structure, comprising a first side and a second side arranged at intervals along a first direction, and a third side and a fourth side arranged at intervals along a second direction; in the pressing direction, the first side, the second side, the third side and the fourth side all intersect at the surface of the sub-plate close to the hot pressing plate and the surface of the sub-plate away from the hot pressing plate; the second plate comprises a first peripheral part, a second peripheral part, a third peripheral part and a fourth peripheral part; the first peripheral part is connected to the first side, the second peripheral part is connected to the second side, the third peripheral part is connected to the third side, and the fourth peripheral part is connected to the fourth side; the first peripheral part, the second peripheral part, the third peripheral part and the fourth peripheral part all comprise at least one sub-plate; the pressing direction, the first direction and the second direction are perpendicular to each other in pairs.

[0012] Optionally, the hot pressing machine further comprises a rack and a movable platform, the hot pressing plate and the movable platform are both connected to the rack; the second pressing plate is connected to the movable platform and located between the first pressing plate and the movable platform; the movable platform can reciprocate along the pressing direction to drive the second pressing plate to approach or move away from the first pressing plate.

[0013] Optionally, the hot pressing machine further comprises a driving member, the driving member is connected to the side of the movable platform away from the second pressing plate; the first plate comprises one sub-plate; in the pressing direction, the surface of the first plate close to the hot pressing plate completely covers the surface of the driving member used to contact the movable platform.

[0014] Optionally, the area of the surface of the first plate close to the hot pressing plate is S1, and the area of the surface of the driving member used to contact the movable platform is S2, wherein S1 is greater than or equal to 5*S2.

[0015] In the hot pressing machine provided in the embodiment of the present application, after the sub-plates are spliced together, the heat insulation surfaces of the sub-plates jointly form a complete heat insulation surface, compared with the complete heat insulation surface, the size of the heat insulation surface of each sub-plate is smaller, the flatness of the heat insulation surface of the sub-plate produced by pressure molding and the like is higher, and subsequent grinding (or the grinding amount is smaller), so that the manufacturing cost of the heat insulation plate can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0017] Figure 1 is a structural schematic view of the heat insulation plate provided by an embodiment of the present application;

[0018] Figure 2 is Figure 1 is a sectional view of A-A direction in the heat insulation plate;

[0019] Figure 3 is a structural schematic view of the hot press provided by an embodiment of the present application.

[0020] Description of the drawings:

[0021] 100, hot press;

[0022] 10, heat insulation plate;

[0023] 1, sub-plate; 11, heat insulation surface; 12, mounting surface;

[0024] 2, first plate; 21, first side surface; 22, second side surface; 23, third side surface; 24, fourth side surface;

[0025] 3, second plate; 31, first peripheral part; 32, second peripheral part; 33, third peripheral part; 34, fourth peripheral part;

[0026] 20, rack; 201, top plate;

[0027] 30, hot press plate;

[0028] 40, movable platform;

[0029] 50, driving member. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical schemes and beneficial effects solved by the present application more clearly understood, the following will further describe the present application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0031] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the terms "mount", "link", "connect" should be understood in broad sense, for example, it can be fixed connection, also can be detachable connection, or integrally connected, it can be mechanical connection, also can be electrical connection, it can be direct connection, also can be indirect connection through intermediate medium, it can be the communication inside two elements, the person skilled in the art can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0032] As shown in the example shown in the utility model, the pressing direction of the hot press 100 is parallel to the Z axis. Figures 1 to 3 As shown in the example shown in the utility model, the pressing direction of the hot press 100 is parallel to the Z axis.

[0033] In the embodiment, for one heat insulation plate 10, the heat insulation surfaces 11 (defined as sub-surface) of the plurality of sub-plates 1 are spliced together to form a complete heat insulation surface (defined as whole surface), compared with the whole surface, the size of each sub-surface is smaller, and the flatness of the sub-surface of the sub-plate 1 produced by pressing and other methods is higher, so that subsequent grinding (or smaller grinding amount) is not required, thereby reducing the manufacturing cost of the heat insulation plate 10.

[0034] Wherein, when the hot press 100 works, the distance between the first pressing plate 30a and the second pressing plate 30b in the pressing direction can be reduced to extrude the object to be pressed between them, thereby realizing hot pressing of the object to be pressed.

[0035] In addition, the heat insulation surface 11 of the sub-plate 1 refers to the heat insulation performance of the surface, which can block (or reduce) the heat exchange between the sub-plate and the external object (or external environment) from the surface.

[0036] In addition, in the actual product, the hot press 100 can also include other hot pressing plates 30 (these hot pressing plates are defined as intermediate pressing plates 30c), and the intermediate pressing plates 30c are located between the first pressing plate 30a and the second pressing plate 30b and are arranged in sequence along the pressing direction.

[0037] In the example shown in the utility model, the pressing direction is parallel to the Z axis. Figures 1 to 3 In the example shown in the utility model, the pressing direction is parallel to the Z axis.

[0038] Generally, the first pressing plate 30a and the second pressing plate 30b are connected with a heat insulation plate, so as to improve the heat insulation effect.

[0039] In an embodiment, the surface of the sub-plate 1 close to the hot pressing plate 30 is the heat insulation surface 11, so as to block (or reduce) the heat exchange between the sub-plate 1 and the hot pressing plate 30 connected therewith.

[0040] When the first pressing plate 30a is connected with the heat insulation plate 10, the surface of the sub-plate 1 of the heat insulation plate 10 close to the hot pressing plate is the surface of the sub-plate 1 of the heat insulation plate 10 close to the first pressing plate 30a, and the first pressing plate 30a is located above the second pressing plate 30b, the heat insulation surface 11 of the sub-plate 1 connected therewith is the lower surface of the sub-plate 1.

[0041] When the second pressing plate 30b is connected with the heat insulation plate 10, the surface of the sub-plate 1 of the heat insulation plate 10 close to the hot pressing plate is the surface of the sub-plate 1 of the heat insulation plate 10 close to the second pressing plate 30b, and the first pressing plate 30a is located above the second pressing plate 30b, the heat insulation surface 11 of the sub-plate 1 connected therewith is the upper surface of the sub-plate 1.

[0042] As shown in FIG. 1, in an embodiment, the surface of the sub-plate 1 away from the hot pressing plate 30 is defined as the mounting surface 12, and the mounting surfaces 12 of the sub-plates 1 are coplanar. At this time, the thicknesses of the sub-plates 1 in the pressing direction can be the same, so as to facilitate the production of the sub-plates 1, thereby reducing the manufacturing cost of the heat insulation plate 10. Figure 2 For the first pressing plate 30a, when it is connected with the heat insulation plate 10, the mounting surface 11 of the sub-plate 1 of the heat insulation plate 10 is the surface of the sub-plate 1 of the heat insulation plate 10 away from the first pressing plate 30a, and the first pressing plate 30a is located above the second pressing plate 30b, the heat insulation surface 11 of the sub-plate 1 connected therewith is the upper surface of the sub-plate 1.

[0043] For the second pressing plate 30b, when it is connected with the heat insulation plate 10, the mounting surface 11 of the sub-plate 1 of the heat insulation plate 10 is the surface of the sub-plate 1 of the heat insulation plate 10 away from the second pressing plate 30b, and the first pressing plate 30a is located above the second pressing plate 30b, the heat insulation surface 11 of the sub-plate 1 connected therewith is the lower surface of the sub-plate 1.

[0044] In an embodiment, the heat insulation surface 11 is a plane, and / or the mounting surface 12 is a plane. Such arrangement can facilitate the production and processing of the heat insulation surface 11 and the mounting surface 12 under certain flatness precision requirements, thereby reducing the manufacturing cost of the heat insulation plate 10.

[0045]

[0046] ​When the heat insulation surface 11 is a plane, after the heat insulation board 10 is assembled, the heat insulation surfaces 11 of each sub-board 1 are in the same plane.

[0047] When the mounting surface 12 is a plane, if the mounting surfaces 12 of each sub-plate 1 are coplanar, then the mounting surfaces 12 of each sub-plate 1 are all planes, and after the heat insulation board 10 is assembled, the mounting surfaces 12 of each sub-plate 1 are in the same plane.

[0048] like Figure 2 As shown, the heat insulation board 10 includes a first board 2 and a second board 3; both the first board 2 and the second board 3 include at least one sub-board 1; the second board 3 is disposed on the periphery of the first board 2 and is in contact with the first board 2.

[0049] The phrase "the second plate 3 is set around the first plate 2" means that the first plate 2 and the second plate 3 are set side by side along a straight line; or, the second plate 3 is set around the first plate 2.

[0050] "The second plate 3 is in contact with the first plate 2" means that at least one sub-plate 1 of the second plate 3 is in contact with at least one sub-plate 1 of the first plate 2.

[0051] During operation, the materials of the first plate 2 and the second plate 3 can be appropriately selected according to different heat insulation requirements, thereby reducing the manufacturing cost of the heat insulation plate 10 while ensuring its heat insulation effect.

[0052] exist Figure 2 In the example shown, the second plate 3 is a ring structure that surrounds the first plate 2. The first plate 2 can be a closed-loop structure (see reference). Figure 2 ( ), or it can be an open-loop structure.

[0053] In one embodiment, after the heat insulation plate 10 is applied to the hot press 100, it is opposite to the drive member 50 of the hot press 100. Specifically, the area where the drive member 50 applies force to the pressure plate is opposite to the first plate 2. When the drive member 50 applies force to the pressure plate on the heat insulation plate 10, the force on the first plate 2 is usually greater than the force on the second plate 3.

[0054] When the first plate 2 includes multiple sub-plates 1, the force on each sub-plate 1 in the first plate 2 is relatively large, which makes the connection between adjacent sub-plates 1 easy to be broken, which in turn causes the edges of the sub-plates 1 in the first plate 2 to easily lift up, making the first plate 2 more susceptible to damage and deformation.

[0055] Therefore, as Figure 2 As shown, in one embodiment, the first plate 2 includes only one sub-plate 1, thereby effectively avoiding the above-mentioned problems.

[0056] like Figure 2As shown, in an embodiment, the first plate 2 is a quadrilateral structure, comprising a first side 21 and a second side 22 arranged along a first direction, and a third side 23 and a fourth side 24 arranged along a second direction; the first side 21, the second side 22, the third side 23 and the fourth side 24 all intersect at the heat insulation surface 11 and the mounting surface 12 in the pressing direction; the second plate 3 comprises a first peripheral part 31, a second peripheral part 32, a third peripheral part 33 and a fourth peripheral part 34; the first peripheral part 31 is connected to the first side 21, the second peripheral part 32 is connected to the second side 22, the third peripheral part 33 is connected to the third side 23, and the fourth peripheral part 34 is connected to the fourth side 24; the first peripheral part 31, the second peripheral part 32, the third peripheral part 33 and the fourth peripheral part 34 all comprise at least one sub-plate 1; the pressing direction, the first direction and the second direction are perpendicular to each other. In this way, it is more convenient to splice the sub-plates 1 to form the heat insulation plate 10.

[0057] In Figure 2 the first direction is parallel to the X-axis, and the second direction is parallel to the Y-axis.

[0058] The "first plate 2 is a quadrilateral structure" means that the cross section of the first plate 2 is a quadrilateral, wherein the cross section of the first plate 2 is perpendicular to the pressing direction.

[0059] In addition, the first peripheral part 31, the second peripheral part 32, the third peripheral part 33 and the fourth peripheral part 34 form a closed loop structure to surround the outside of the first plate 2.

[0060] When the first peripheral part 31 has multiple sub-plates 1, the sub-plates 1 are arranged in sequence along the second direction; when the second peripheral part 32 has multiple sub-plates 1, the sub-plates 1 are arranged in sequence along the first direction; when the third peripheral part 33 has multiple sub-plates 1, the sub-plates 1 are arranged in sequence along the second direction; and when the fourth peripheral part 34 has multiple sub-plates 1, the sub-plates 1 are arranged in sequence along the first direction.

[0061] The sub-plates 1 of the first peripheral part 31 all contact the first side 21, the sub-plates 1 of the second peripheral part 32 all contact the second side 22, the sub-plates 1 of the third peripheral part 33 all contact the third side 23, and the sub-plates 1 of the fourth peripheral part 34 all contact the fourth side 24.

[0062] In Figure 2 the example shown, the first peripheral part 31 and the third peripheral part 33 each have three sub-plates 1, and the second peripheral part 32 and the fourth peripheral part 34 each have two sub-plates 1.

[0063] In addition, the shapes and sizes of the sub-panels 1 in the first peripheral portion 31 are the same, the shapes and sizes of the sub-panels 1 in the second peripheral portion 32 are the same, the shapes and sizes of the sub-panels 1 in the third peripheral portion 33 are the same, and the shapes and sizes of the sub-panels 1 in the fourth peripheral portion 34 are the same. Further, the shapes and sizes of the sub-panels 1 in the first peripheral portion 31 and the third peripheral portion 33 are the same, and the shapes and sizes of the sub-panels 1 in the second peripheral portion 32 and the fourth peripheral portion 34 are the same. Of course, in some embodiments, the shapes and sizes of the sub-panels 1 in the first peripheral portion 31, the second peripheral portion 32, the third peripheral portion 33, and the fourth peripheral portion 34 are the same.

[0064] In an embodiment, each of the sub-panels 1 is a cuboid structure, which is convenient for the production and processing of the sub-panels 1 and the splicing of the heat insulation board 10.

[0065] As shown in Figure 3 In an embodiment, the hot press 100 further comprises a frame 20 and a movable platform 40, wherein each of the hot press plates 30 and the movable platform 40 is connected to the frame 20, the second press plate 30b is connected to the movable platform 40 and is located between the first press plate 30a and the movable platform 40, and the movable platform 40 is capable of reciprocating along the pressing direction to drive the second press plate 30b to approach or move away from the first press plate 30a.

[0066] In addition, when the first press plate 30a is located above the second press plate 30b, the first press plate 30a is connected to the top plate 201 of the frame 20 and is located below the top plate 201. Moreover, when the first press plate 30a is connected to the heat insulation board 10, the heat insulation board 10 is connected to the top plate 201.

[0067] As shown in Figure 3 The hot press 100 further comprises a driving member 50, which is connected to the movable platform 40 and is used to drive the movable platform 40 to move along the pressing direction to approach or move away from the first press plate 30a.

[0068] When the movable platform 40 approaches the first press plate 30a, the movable platform 40 can push the first press plate 30a and the intermediate press plate 30c to approach the top plate 201 and finally press the first press plate 30a, so that the hot pressing of the object to be pressed placed on the hot press plates can be realized.

[0069] In one embodiment, when the movable platform 40 is provided with a heat insulation plate 10, each sub-plate 1 of the heat insulation plate 10 can be connected to the movable platform 40 by a corresponding connector. For example, each sub-plate 1 can be locked onto the movable platform 40 by screws. In this case, each sub-plate 1 is provided with a corresponding clearance hole, and the movable platform 40 is provided with a corresponding threaded hole. The screw passes through the clearance hole on the sub-plate 1 and engages with the corresponding threaded hole on the movable platform 40, thereby locking the sub-plate 1 onto the movable platform 40.

[0070] The clearance hole can extend from the heat insulation surface 11 to the mounting surface 12, and the clearance hole can be a stepped hole with a larger diameter on the side closer to the heat insulation surface 11. After assembly, the screw can abut against the stepped surface of the clearance hole, and the screw can not protrude from the heat insulation surface 11 in the direction from the mounting surface 12 to the heat insulation surface 11.

[0071] It should be understood that when the top plate 201 is provided with a heat insulation board 10, the heat insulation board 10 can also be fixed to the top plate 201 in the same way.

[0072] like Figure 3 As shown, in one embodiment, the drive member 50 is connected to the side of the movable platform 40 opposite to the second pressure plate 30b. The first plate 2 includes a sub-plate 1, and the heat-insulating surface 11 of the first plate 2 (i.e., the heat-insulating surface 11 of the sub-plate 1 included in the first plate 2) completely covers the surface of the drive member 50 used to contact the movable platform 40. This can effectively prevent the first plate 2 from deforming due to the force applied by the drive member 50.

[0073] The surface of the drive member 50 that contacts the movable platform 40 is defined as the contact surface. The fact that the heat insulation surface 11 of the sub-plate 1 included in the first plate 2 completely covers the surface of the drive member 50 that contacts the movable platform 40 means that in the orthographic projection of a plane perpendicular to the pressing direction, the projection of the heat insulation surface 11 of the sub-plate 1 included in the first plate 2 completely covers the projection of the contact surface.

[0074] In one embodiment, the driving component 50 is a hydraulic cylinder, and the piston rod of the hydraulic cylinder is connected to the contact movable platform 40. In this case, the area of ​​the contact surface can be equal to the area of ​​the cross-section of the piston rod.

[0075] In one embodiment, the area of ​​the heat-insulating surface 11 of the first plate 2 is S1, and the area of ​​the surface of the driving member 50 that contacts the movable platform 40 is S2 (i.e., the area of ​​the contact surface is S2), wherein S1 ≥ 5 * S2. That is, S1 is 5 times or more than 5 times S2. This can improve the effect of preventing the first plate 2 from deforming due to the force applied by the driving member 50.

[0076] It should be noted that when the first pressing plate 30a and the second pressing plate 30b are both connected with the heat insulation plate 10, the heat insulation surface 11 of the first plate 2 of the heat insulation plate 10 on both of them can satisfy the above relationship, or only the heat insulation surface 11 of the first plate 2 of the heat insulation plate 10 on one of them can satisfy the above relationship.

[0077] It should be understood that the above-mentioned related designs can also be replaced by other ways, such as:

[0078] In other embodiments, the mounting surface 12 of each sub-plate 1 can also be non-coplanar. At this time, the thickness of different sub-plates 1 in the pressing direction can be the same or different.

[0079] In other embodiments, the heat insulation surface 11 can also be an arc surface. At this time, the heat insulation surface 11 of each sub-plate 1 is an arc surface, and after the heat insulation plate 10 is assembled, the heat insulation surface 11 of each sub-plate 1 is in the same arc surface.

[0080] In other embodiments, when the mounting surface 12 can also be an arc surface, if the mounting surface 12 of each sub-plate 1 is coplanar, the mounting surface 12 of each sub-plate 1 is an arc surface, and after the heat insulation plate 10 is assembled, the mounting surface 12 of each sub-plate 1 is in the same arc surface.

[0081] In other embodiments, the heat insulation surface of the sub-plate 1 can also be the surface thereof in the pressing direction away from the hot pressing plate 30.

[0082] The technical features of the above-mentioned embodiments can be combined in any way. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0083] The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A hot press, characterized in that, The first and second heat press plates at the outermost sides of the heat press machine are respectively a first heat press plate and a second heat press plate in the pressing direction of the heat press machine; The heat press machine comprises heat insulation plates; The surface of the first heat press plate away from the second heat press plate is provided with at least one heat insulation plate, and / or the surface of the second heat press plate away from the first heat press plate is provided with at least one heat insulation plate; The heat insulation plate comprises a plurality of sub-plates spliced together, and the heat insulation surfaces of the sub-plates are coplanar.

2. Hot press according to claim 1, characterized in that The surface of the sub-plate close to the heat press plate is the heat insulation surface; The surfaces of the sub-plates away from the heat press plate are coplanar.

3. Hot press according to claim 2, characterized in that The surface of the sub-plate close to the heat press plate is a plane; and / or the surface of the sub-plate away from the heat press plate is a plane.

4. The hot press of claim 1, wherein, Each of the sub-plates is a cuboid structure.

5. The hot press of claim 1, wherein, The heat insulation plate comprises a first plate and a second plate; The first plate and the second plate each comprise at least one sub-plate; The second plate is arranged at the periphery of the first plate and is in contact with the first plate.

6. Hot press according to claim 5, characterized in that The second plate surrounds the first plate.

7. The hot press of claim 5, wherein, The first plate is a quadrilateral structure comprising a first side and a second side arranged at intervals in a first direction and a third side and a fourth side arranged at intervals in a second direction; In the pressing direction, the first side, the second side, the third side and the fourth side all intersect at the surface of the sub-plate close to the heat press plate and the surface of the sub-plate away from the heat press plate; The second plate comprises a first peripheral portion, a second peripheral portion, a third peripheral portion and a fourth peripheral portion; The first peripheral portion is connected to the first side, the second peripheral portion is connected to the second side, the third peripheral portion is connected to the third side, and the fourth peripheral portion is connected to the fourth side; The first peripheral portion, the second peripheral portion, the third peripheral portion and the fourth peripheral portion each comprise at least one sub-plate; The pressing direction, the first direction and the second direction are perpendicular to each other.

8. The hot press of claim 5, wherein, The heat press machine further comprises a frame and a movable platform, and the heat press plates and the movable platform are connected to the frame; The second heat press plate is connected to the movable platform and is located between the first heat press plate and the movable platform; The movable platform can reciprocate in the pressing direction to drive the second heat press plate to approach or move away from the first heat press plate.

9. Hot press according to claim 8, characterized in that The heat press machine further comprises a driving member connected to one side of the movable platform away from the second heat press plate; The first plate comprises one sub-plate; In the pressing direction, the surface of the first plate close to the heat press plate completely covers the surface of the driving member for contacting the movable platform.

10. Hot press according to claim 9, characterized in that The area of the surface of the first plate close to the heat press plate is S1, and the area of the surface of the driving member for contacting the movable platform is S2, wherein S1≥5*S2.

Images