Vacuum hot press and system

Abstract

The utility model relates to a vacuum hot press and a system. The vacuum hot press comprises a vacuum bin, a partition plate, a first bin door, two hot press plate assemblies and a driving assembly. The vacuum cavity is separated by the partition plate, so that two groups of to-be-pressed materials can be respectively arranged on two sides of the partition plate, and each group of hot pressing plates can perform hot pressing on a plurality of to-be-pressed materials, so that the yield is improved, and meanwhile, the two groups of to-be-pressed materials are subjected to hot pressing in the same vacuum cavity; therefore, two groups of to-be-pressed materials do not need to be pressed through two vacuum hot presses respectively, so that the occupied space is saved while the pressing efficiency and the yield are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hot presses, in particular to a vacuum hot press and system. BACKGROUND

[0002] In the fields of computers, communication equipment, consumer electronics, industrial control, etc., multi-layer PCBs are needed. A hot press is an indispensable key equipment for manufacturing multi-layer PCBs, and the multi-layer PCBs need to be laminated by a hot press.

[0003] The working principle of the hot press is that, before hot pressing, the materials such as the pre-made inner layer core plate, prepreg (PP sheet), and outer layer copper foil are stacked in a certain order to form a laminated structure to be pressed, and then the laminated structure is heated by a heating plate under a specific temperature rising curve and vacuum environment, so that the resin in the prepreg melts. At the same time, the hot press applies a certain pressure to tightly press the layers of materials together.

[0004] Under the combined action of heating and pressing, the resin flows and fills into the gaps between the layers, forming a firm bond between the copper foil and the insulating medium layer and between the insulating medium layers. The resin undergoes a curing reaction under high temperature and high pressure, thereby permanently bonding the multi-layer materials together to form a whole multi-layer printed circuit board.

[0005] However, the existing PCB hot press has a relatively complex structure, resulting in a large floor space. CONTENT OF THE INVENTION

[0006] Therefore, it is necessary to provide a vacuum hot press and system to solve the problem of the relatively complex structure of the existing PCB hot press resulting in a large floor space.

[0007] A vacuum hot press, comprising:

[0008] a vacuum chamber having a vacuum cavity and a first opening, the vacuum cavity being in communication with the first opening;

[0009] a first chamber door connected with the vacuum chamber and capable of covering or opening the first opening;

[0010] a partition plate extending in a first direction and at least partially disposed in the vacuum cavity;

[0011] two hot press plate assemblies located in the vacuum cavity and disposed on both sides of the partition plate, each hot press plate assembly comprising a plurality of hot press plates arranged in the first direction in sequence;

[0012] a driving assembly connected with the vacuum chamber and used to drive the plurality of hot press plates in each hot press plate assembly to move towards each other in the first direction to clamp the material to be pressed.

[0013] In actual use, first, the first door is opened, and the materials to be pressed are placed in the vacuum chamber through the conveying device. Two groups of materials to be pressed can be placed on both sides of the partition plate, or only one group of materials to be pressed can be placed on either side of the partition plate. Each group of materials corresponds to a hot pressing plate assembly, and each material corresponds to the space between two adjacent hot pressing plates, that is, each material has a hot pressing plate assembly on both sides in the first direction. Then, the first door is closed, and the driving assembly drives the multiple hot pressing plates in any one or both hot pressing plate assemblies to move towards each other in the first direction, so that all the materials to be pressed and the hot pressing plates are tightly attached and maintain a set pressure. The vacuum degree in the vacuum chamber is increased, and the first door is pressed against the vacuum chamber and covers the first opening due to the higher atmospheric pressure outside the vacuum chamber. When the vacuum degree in the vacuum chamber reaches a set value, the temperature in the vacuum chamber is controlled to allow all the materials to be pressed to complete the cross-linking reaction under the set pressure, temperature, and vacuum environment. After pressing, the vacuum degree of the vacuum assembly decreases, air enters the vacuum chamber, and the adhesion of the first door to the vacuum chamber decreases as the vacuum degree decreases. Then, the first door is opened, the driving assembly releases the pressure on the hot pressing plates, the hot pressing plates are separated from each other, and the pressed materials are taken out of the vacuum chamber for the next process.

[0014] In this application, the vacuum chamber is separated by the partition plate, so that two groups of materials to be pressed can be placed on both sides of the partition plate, and each group of hot pressing plates can press multiple materials to be pressed, thereby improving the yield. At the same time, the two groups of materials to be pressed are pressed in the same vacuum chamber, so it is not necessary to press the two groups of materials to be pressed by two vacuum hot pressing machines, thereby improving the pressing efficiency and yield while saving the floor space.

[0015] In an embodiment, the vacuum chamber includes a hot pressing chamber and a connecting chamber, the partition plate and the hot pressing plate assembly are located in the hot pressing chamber, the first opening is provided in the hot pressing chamber, and the side of the hot pressing chamber away from the first door is connected to the connecting chamber.

[0016] The vacuum hot pressing machine further includes a vacuum assembly and a temperature control assembly, both of which are in communication with the interior of the connecting chamber.

[0017] In an embodiment, the hot pressing chamber includes a first beam plate and a second beam plate arranged opposite to each other in the first direction, and a first support plate and a second support plate arranged opposite to each other in a third direction.

[0018] The two ends of the first beam plate are connected to the ends of the first support plate and the second support plate away from the installation position, respectively. The two ends of the second beam plate are connected to the first support plate and the second support plate, respectively, and the second beam plate has a gap between the installation position.

[0019] The first beam plate, the second beam plate, the first support plate and the second support plate enclose the first opening on one side along the first direction and enclose a second opening on the other side, the second opening being connected with the interior of the connecting cavity.

[0020] In an embodiment, the second beam plate is located on the side of the first beam plate close to the installation position along the first direction, one end of the partition plate is arranged through the second beam plate and connected with the first beam plate, and the other end is supported on the installation position.

[0021] In an embodiment, the driving assembly comprises a first driving mechanism and a second driving mechanism arranged through the second beam plate, two sides of the partition plate along the third direction are respectively a first chamber and a second chamber, and two groups of the hot pressing plates are respectively located in the first chamber and the second chamber.

[0022] The second beam plate is located on the side of the first beam plate close to the installation position along the first direction, the first driving mechanism is partially located in the first chamber and can drive one group of the hot pressing plates to move close to or away from each other, and the second driving mechanism is partially located in the second chamber and can drive the other group of the hot pressing plates to move close to or away from each other.

[0023] The first direction, the second direction and the third direction are perpendicular to each other.

[0024] In an embodiment, the first chamber is provided with a first step group and a second step group on two sides along the third direction, the distance between the first step group and the second step group gradually expands in the direction away from the installation position along the first direction, one group of the hot pressing plates is placed one by one between the first step group and the second step group, the second chamber is provided with a third step group and a fourth step group on two sides along the third direction, the distance between the third step group and the fourth step group gradually expands in the direction away from the installation position along the first direction, and the other group of the hot pressing plates is placed one by one between the third step group and the fourth step group.

[0025] In an embodiment, the vacuum hot pressing machine further comprises a first heat insulation plate, a second heat insulation plate, a third heat insulation plate and a fourth heat insulation plate.

[0026] One group of the hot pressing plates is located between the first heat insulation plate and the second heat insulation plate, one side of the first heat insulation plate is connected with the first beam plate, and one side of the second heat insulation plate is connected with the first driving mechanism.

[0027] The other group of the hot pressing plates is located between the third heat insulation plate and the fourth heat insulation plate, one side of the third heat insulation plate is connected with the first beam plate, and one side of the fourth heat insulation plate is connected with the second driving mechanism.

[0028] In an embodiment, the vacuum hot press further comprises a first movable block and a second movable block located in the vacuum cavity, one end of the first movable block is connected with the first driving mechanism, and the other end is connected with the first heat insulation plate;

[0029] one end of the second movable block is connected with the second driving mechanism, and the other end is connected with the second heat insulation plate.

[0030] In an embodiment, the vacuum hot press further comprises a lifting assembly, one end of the first door is connected with the vacuum chamber, and the other end is connected with the first door away from the installation position in the first direction, one end of the lifting assembly is connected with the vacuum chamber, and the other end is connected with the first door, the lifting assembly can cover or open the first opening by driving the first door.

[0031] An embodiment of the present application further provides a vacuum hot pressing system, which comprises a control module and the vacuum hot press.

[0032] The control module is connected with the driving assembly, the vacuum assembly and the temperature control assembly simultaneously.

[0033] The control module is used for controlling the driving assembly to drive the hot pressing plate to move close to or away from in the first direction.

[0034] The control module is used for controlling the vacuum assembly to vacuumize the vacuum cavity.

[0035] The control module is used for controlling the temperature control assembly to control the temperature of the vacuum cavity.

[0036] In actual use, first, the first door is opened, and the materials to be pressed are placed in the vacuum chamber through the conveying device. Two groups of materials to be pressed can be placed on both sides of the partition plate, or only one group of materials to be pressed can be placed on either side of the partition plate. Each group of materials corresponds to a hot pressing plate assembly, and each material corresponds to the space between two adjacent hot pressing plates, that is, each material has a hot pressing plate assembly on both sides in the first direction. Then the first door is closed, and the driving assembly drives multiple hot pressing plates in any one or both hot pressing plate assemblies to move towards each other in the first direction, so that all materials to be pressed and hot pressing plates are tightly attached and maintain a set pressure. The vacuum degree in the vacuum chamber is increased, and the first door is pressed against the vacuum chamber and covers the first opening due to the higher atmospheric pressure outside the vacuum chamber. When the vacuum degree in the vacuum chamber reaches a set value, the temperature in the vacuum chamber is controlled to allow all materials to be pressed to complete cross-linking reaction under a set pressure, temperature, and vacuum environment. After pressing, the vacuum degree of the vacuum assembly is reduced, air enters the vacuum chamber, and the adhesion of the first door to the vacuum chamber is reduced as the vacuum degree decreases. Then the first door is opened, the driving assembly releases the pressure on the hot pressing plates, the hot pressing plates are separated from each other, and the pressed materials are taken out of the vacuum chamber for the next process.

[0037] In this application, the vacuum chamber is separated by a partition plate, so that two groups of materials to be pressed can be placed on both sides of the partition plate, and each group of hot pressing plates can press multiple materials to be pressed, thereby improving the yield. At the same time, the two groups of materials to be pressed are pressed in the same vacuum chamber, so it is not necessary to press the two groups of materials to be pressed by two vacuum hot pressing machines, which improves the pressing efficiency and yield while saving the floor space. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 Structure diagram of a vacuum hot pressing machine according to an embodiment.

[0039] Figure 2 Structure diagram of a vacuum hot pressing machine according to an embodiment. Figure 1 Structure diagram of a vacuum hot pressing machine according to an embodiment.

[0040] Figure 3 Structure diagram of a vacuum hot pressing machine according to an embodiment.

[0041] BRIEF DESCRIPTION OF DRAWINGS

[0042] 100 - vacuum hot pressing machine;

[0043] 110 - vacuum chamber; 111 - first opening; 112 - vacuum cavity; 113 - first support plate; 114 - second support plate; 115 - first beam plate; 116 - second beam plate; 117 - second chamber door; 118 - second opening; 119 - hot-pressing chamber;

[0044] 120 - partition; 121 - first chamber door; 122 - hot-pressing plate; 123 - connecting chamber; 124 - third opening; 125 - fourth opening; 126 - first chamber; 127 - second chamber;

[0045] 130 - driving assembly; 131 - first driving mechanism; 132 - second driving mechanism; 133 - hydraulic unit; 134 - fixed cylinder; 135 - piston part;

[0046] 140 - vacuum assembly; 141 - vacuum part; 142 - vacuum pipe;

[0047] 150 - temperature control assembly; 151 - temperature control furnace; 152 - oil outlet pipe; 153 - oil return pipe;

[0048] 160 - first ladder group; 161 - second ladder group; 162 - third ladder group; 163 - fourth ladder group; 164 - first heat insulation plate; 165 - second heat insulation plate; 166 - third heat insulation plate; 167 - fourth heat insulation plate; 168 - first movable block; 169 - second movable block;

[0049] 170 - lifting assembly; 171 - rotating device; 172 - belt;

[0050] OX - first direction; OY - second direction;

[0051] OZ - third direction. DETAILED DESCRIPTION

[0052] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described and it is therefore contemplated to cover all such modifications as fall within the scope of the application. It is to be understood that other embodiments can be utilized and structural or logical changes can be made without departing from the scope of the present application.

[0053] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0054] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0055] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0056] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0057] It is to be noted that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In addition, it is to be understood that when an element such as a layer, film, region, or substrate is referred to as being "connected" to or "coupled" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. As used herein, the term "about" when used in reference to a particular recited numerical value, means that the value can vary from the recited value by no more than 1%, 2%, 5%, or 10%. As used herein, the terms "vertical", "horizontal", "up", "down", "left", "right", and similar terms are used for explanation only and not to limit the embodiments of the present application.

[0058] Referring to Figure 1 , Figure 1 A structure diagram of a vacuum hot press 100 in an embodiment of the present application is shown. The vacuum hot press 100 provided by the embodiment of the present application includes a vacuum chamber 110, a partition 120, a first chamber door 121, two hot press plate assemblies, and a driving assembly 130.

[0059] In the vacuum hot press 100 described above, the vacuum chamber 110 has a vacuum cavity 112 and a first opening 111, and the vacuum cavity 112 and the first opening 111 are in communication. The first chamber door 121 is connected with the vacuum chamber 110 and can cover or open the first opening 111. The partition 120 extends along a first direction OX and is at least partially disposed in the vacuum cavity 112. The two hot press plate assemblies are located in the vacuum cavity and are respectively disposed on two sides of the partition 120. Each hot press plate assembly includes a plurality of hot press plates 122 arranged in sequence along the first direction OX. Referring to Figure 1 and Figure 2 The driving assembly 130 is connected with the vacuum chamber 110 and is used to drive the plurality of hot press plates 122 in each hot press plate assembly to move close to each other along the first direction OX to clamp the material to be pressed. The first direction OX is a vertical direction, the first opening 111 faces a second direction OY of the box, and the first direction OX is perpendicular to the second direction OY.

[0060] The vacuum hot press 100 described above is used in actual use. First, the first door 121 is opened, and the materials to be pressed are placed in the vacuum chamber 110 through the conveying device. Two groups of materials to be pressed can be placed on both sides of the partition 120, or only one group of materials to be pressed can be placed on one side of the partition 120. Each group of materials corresponds to a hot press plate assembly, and each material corresponds to the space between two adjacent hot press plates 122, i.e. each material has a hot press plate assembly on both sides in the first direction OX. Then the first door 121 is closed, and the drive assembly 130 drives the multiple hot press plates 122 in any one or both hot press plate assemblies to move towards each other along the first direction OX, so that all the materials to be pressed and the hot press plates 122 are tightly attached and maintain a set pressure. The vacuum degree in the vacuum chamber 112 is increased, and the first door 121 is pressed to the vacuum chamber 110 and covers the first opening 111 due to the higher atmospheric pressure outside the vacuum chamber 112. When the vacuum degree in the vacuum chamber 112 reaches a set value, the temperature in the vacuum chamber 110 is controlled to make all the materials to be pressed complete cross-linking reaction under the set pressure, temperature and vacuum environment. After pressing, the vacuum degree of the vacuum assembly 140 is reduced, air enters the vacuum chamber 112, and as the vacuum degree decreases, the adhesion of the first door 121 to the vacuum chamber 110 decreases, and then the first door 121 is opened. The drive assembly 130 releases the pressure on the hot press plates 122, and the hot press plates 122 are separated from each other. The materials to be pressed are taken out from the vacuum chamber 112 and enter the next process.

[0061] In this application, the vacuum chamber 112 is separated by the partition 120, so that two groups of materials to be pressed can be arranged on both sides of the partition 120, and each group of hot press plates 122 can press multiple materials to be pressed, thereby improving the yield. At the same time, the two groups of materials to be pressed are pressed in the same vacuum chamber 112, so it is not necessary to press the two groups of materials to be pressed by two vacuum hot presses 100, thereby improving the pressing efficiency and yield, and saving the floor space.

[0062] Specifically, the temperature control assembly 150 controls the temperature in the vacuum chamber. Generally, different temperature oil is used in the vacuum chamber 110 to exchange heat with the hot press plates 122 and the materials to be pressed, thereby saving the use of oil in the temperature control assembly 150 and the waste of energy in the heating or cooling process.

[0063] Referring to Figure 1 and Figure 2In an embodiment, the vacuum chamber 110 comprises a hot-pressing chamber 119 and a connecting chamber 123, the partition plate and the hot-pressing plate assembly are located in the hot-pressing chamber 119, the first opening 111 is arranged on the hot-pressing chamber 119, and the side of the hot-pressing chamber 119 away from the first chamber door 121 is connected with the connecting chamber 123. The vacuum hot-pressing machine 100 further comprises a vacuum assembly 140 and a temperature control assembly 150, both of which are in communication with the interior of the connecting chamber 123. In this embodiment, the interior of the vacuum chamber 110 is vacuumized by the vacuum assembly 140, and the temperature of the interior of the vacuum chamber 110 is controlled by the temperature control assembly 150, and the vacuum assembly 140 and the temperature control assembly 150 are both in communication with the interior of the connecting chamber 123, so as to prevent the vacuum assembly 140 and the temperature control assembly 150 from interfering with the material to be pressed in the hot-pressing chamber 119.

[0064] Referring to Figure 1 and Figure 2 In an embodiment, the hot-pressing chamber 119 comprises a first beam plate 115 and a second beam plate 116 arranged opposite to each other along the first direction OX, a first support plate 113 and a second support plate 114 arranged opposite to each other along the third direction, two ends of the first beam plate 115 are respectively connected with the ends of the first support plate 113 and the second support plate 114 away from the installation position, two ends of the second beam plate 116 are respectively connected with the first support plate 113 and the second support plate 114, and the second beam plate 116 has a space with the installation position, and two ends of the partition plate are respectively connected with the first beam plate 115 and the second beam plate 116. The first beam plate 115, the second beam plate 116, the first support plate 113 and the second support plate 114 enclose the first opening 111 on one side along the first direction OX and enclose the second opening 118 on the other side, and the second opening 118 is connected with the interior of the connecting chamber 123. In this embodiment, the first support plate 113 and the second support plate 114 can support the vacuum cavity 112 and away from the installation position, and the partition plate 120 divides the vacuum cavity 112 by connecting two ends with the first beam plate 115 and the second beam plate 116, so that the vacuum cavity 112 can be located at a position with a certain height from the installation position, thereby facilitating the putting in or taking out of the material.

[0065] Referring to Figure 1 and Figure 2 In an embodiment, the second beam plate 116 is located on the side of the first beam plate 115 close to the installation position along the first direction OX, one end of the partition plate 120 is arranged through the second beam plate 116 and connected with the first beam plate 115, and the other end is supported on the installation position. In this embodiment, the first support plate 113, the second support plate 114 and the partition plate 120 support the entire vacuum cavity 112 and the hot-pressing plate 122 and the material in the vacuum cavity 112, so that the support is more stable.

[0066] Referring to Figure 1 and Figure 2In an embodiment, the connecting chamber 123 has a third opening 124 and a fourth opening 125 on two sides of the first direction OX respectively, the connecting chamber 123 is provided with a second chamber door 117, the connecting chamber 123 is connected with the vacuum chamber 110, the third opening 124 is communicated with the second opening 118, and the second chamber door 117 covers or opens the fourth opening 125 so as to maintain the vacuum chamber. Since the connecting chamber 123 is connected with the vacuum chamber 110, the internal space of the connecting chamber 123 is communicated with the vacuum cavity 112, so that the vacuum assembly 140 performs vacuumization on the connecting chamber 123, that is, the vacuum cavity 112, and the temperature control assembly 150 controls the temperature of the interior of the connecting chamber 123, that is, the interior of the vacuum cavity 112, thereby preventing the temperature control assembly 150 and the part of the vacuum assembly 140 located in the vacuum cavity 112 from interfering with the driving assembly 130, the hot press plate 122 and the material, and improving the hot press yield.

[0067] Referring to Figure 1 and Figure 2 In an embodiment, the partition plate 120 has a first chamber 126 and a second chamber 127 on two sides of the third direction OZ respectively, and the two groups of hot press plates 122 are located in the first chamber 126 and the second chamber 127 respectively. The driving assembly 130 includes a first driving mechanism 131 and a second driving mechanism 132 which are arranged through the second beam plate 116, the second beam plate 116 is located on the side of the first beam plate 115 close to the installation position along the first direction OX, the first driving mechanism 131 is partially located in the first chamber 126, and the first driving mechanism 131 can drive one of the groups of hot press plates 122 to move close to or away from each other. The second driving mechanism 132 is partially located in the second chamber 127, and the second driving mechanism 132 can drive the other group of hot press plates 122 to move close to or away from each other. The first direction OX, the second direction OY and the third direction OZ are perpendicular to each other.

[0068] In this embodiment, the vacuum cavity 112 is lifted to a position with a certain height from the installation position by combining the first support plate 113, the second support plate 114 and the partition plate 120, so that the second beam plate 116 has space with the installation position, the first driving mechanism 131 can be arranged through the second beam plate 116, and the part of the first driving mechanism 131 located in the first chamber 126 can jack up or release the corresponding group of hot press plates 122 in the first chamber 126. The second driving mechanism 132 is arranged through the second beam plate 116, and the part of the second driving mechanism 132 located in the second chamber 127 can jack up or release the corresponding group of hot press plates 122 in the second chamber 127, so that the hot pressing processes in the first chamber 126 and the second chamber 127 are independent of each other, that is, simultaneous hot pressing or separate hot pressing can be performed, thereby improving the applicability of the vacuum hot press machine 100 in the present application.

[0069] Specifically, the first driving mechanism 131 and the second driving mechanism 132 are hydraulic cylinders, wherein the hydraulic cylinders comprise a hydraulic unit 133, a fixed cylinder 134, and a piston part 135, the hydraulic unit 133 is connected with the fixed cylinder 134, the fixed cylinder 134 is penetrated and fixed to the second beam plate 116, the piston part 135 is located in the vacuum cavity 112 and partially located in the fixed cylinder 134, the hydraulic unit 133 is used to drive the piston part 135 to move in the first direction OX in the fixed cylinder 134 to lift the corresponding hot pressing plate 122, when the pressure on the hot pressing plate 122 is released, only the hydraulic unit 133 needs to be closed, the piston part 135 will be affected by gravity and descend with the decrease of the vacuum degree in the vacuum cavity 112, so as to make the hot pressing plates 122 move away from each other under the action of gravity. The embodiment provides the accommodation space for the first driving mechanism 131 and the second driving mechanism 132 by lifting the vacuum cavity 112 to a certain height through the first support plate 113, the second support plate 114, and the partition plate 120, and makes the first driving mechanism 131 and the second driving mechanism 132 lift the hot pressing plates 122 from bottom to top, so that the piston cannot return to the original position under the action of gravity after the hydraulic unit 133 stops working, and the hot pressing plates 122 and the materials between the hot pressing plates 122 are released.

[0070] Referring to Figure 1 and Figure 3 In an embodiment, the first chamber 126 is provided with a first step group 160 and a second step group 161 on both sides along the third direction OZ, the distance between the first step group 160 and the second step group 161 gradually expands in the direction away from the to-be-installed position along the first direction OX, and a group of hot pressing plates 122 are placed one by one between the first step group 160 and the second step group 161. The second chamber 127 is provided with a third step group 162 and a fourth step group 163 on both sides along the third direction OZ, the distance between the third step group 162 and the fourth step group 163 gradually expands in the direction away from the to-be-installed position along the first direction OX, and another group of hot pressing plates 122 are placed one by one between the third step group 162 and the fourth step group 163.

[0071] In this embodiment, taking the first step set 160 and the second step set 161 in the first chamber 126 as an example, when the hot platens 122 in the first chamber 126 are not jacked up, each hot platen 122 is placed on the corresponding step of the first step set 160 and the second step set 161 along the third direction OZ under the action of gravity, and a plurality of hot platens 122 correspond to a plurality of steps, and the distance between adjacent hot platens 122 along the first direction OX is the height of the step to accommodate the material. And during the jacking up process, since the distance between the first step set 160 and the second step set 161 gradually expands in the direction away from the installation position along the first direction OX, the jacking up process of the hot platens 122 and the material will not be hindered, so that the hot platens 122 in the first chamber 126 can be brought close to each other under the action of the first driving mechanism 131, and a pressing force is generated on the plurality of materials, and then the first driving mechanism contacts the pressing force, and the hot platens 122 are separated from each other under the action of gravity and fall onto the corresponding steps one by one, thereby facilitating the removal of the hot-pressed material from the vacuum cavity 112. The hot pressing process in the second chamber 127 is the same as that in the second chamber 127, and details are not repeated here.

[0072] Referring to Figure 1 and Figure 2 In an embodiment, the vacuum hot press 100 further comprises a first heat insulation plate 164, a second heat insulation plate 165, a third heat insulation plate 166 and a fourth heat insulation plate 167. One group of hot platens 122 is located between the first heat insulation plate 164 and the second heat insulation plate 165, one side of the first heat insulation plate 164 is connected with the first beam plate 115, and one side of the second heat insulation plate 165 is connected with the first driving mechanism 131. Another group of hot platens 122 is located between the third heat insulation plate 166 and the fourth heat insulation plate 167, one side of the third heat insulation plate 166 is connected with the first beam plate 115, and one side of the fourth heat insulation plate 167 is connected with the second driving mechanism 132. The hot platens 122 in the first chamber 126 are separated from the vacuum chamber 110 by the first heat insulation plate 164 and the second heat insulation plate 165, and the hot platens 122 in the second chamber 127 are separated from the vacuum chamber 110 by the third heat insulation plate 166 and the fourth heat insulation plate 167, so as to prevent the heat of the hot platens 122 and the material from dissipating through the vacuum chamber 110, thereby saving energy.

[0073] Referring to Figure 1 and Figure 2 In an embodiment, the vacuum hot press 100 further comprises a first movable block 168 and a second movable block 169 located in the vacuum cavity 112, one end of the first movable block 168 is connected with the first driving mechanism 131, and the other end is connected with the first heat insulation plate 164. One end of the second movable block 169 is connected with the second driving mechanism 132, and the other end is connected with the second heat insulation plate 165.

[0074] Specifically, one end of the first movable block 168 is connected with the piston part 135 of the first driving mechanism 131 away from the one end of the fixing cylinder 134, and the other end is connected with the second heat insulation plate 165 which is connected with the hot press plate 122 in the first chamber 126 close to the second beam plate 116, so that the hot press plate 122 group in the first chamber 126 can be stably jacked up. The second movable block 169 is connected with the first movable block 168 in a similar positional relationship and movement mode, and details are not repeated here.

[0075] Referring to Figure 1 and Figure 2 In an embodiment, the vacuum hot press 100 further comprises a lifting assembly 170, one end of the first door 121 close to the installation position in the first direction OX is connected with the vacuum chamber 110, one end of the lifting assembly 170 is connected with the vacuum chamber 110, and the other end is connected with the first door 121 away from the installation position in the first direction OX. The lifting assembly 170 can drive the first door 121 to cover or open the first opening 111.

[0076] Specifically, the lifting assembly 170 comprises a rotating device 171 and a belt 172, the rotating device 171 is arranged on the first beam plate 115 and can drive the belt 172 to wind, one end of the belt 172 is connected with the rotating shaft of the rotating device 171, and the other end is connected with the first door 121 close to the first beam plate 115. The first door 121 is in abutment or rotary connection with the second beam plate 116. During the winding and elongation of the belt 172, the end of the first door 121 close to the first beam plate 115 moves away from the vacuum chamber 110, and the first door 121 rotates around the contact part thereof with the second beam plate 116, so as to open the first opening 111. Conversely, during the winding and shortening of the belt 172, the first door 121 covers the first opening 111. The belt 172 can also be a steel wire or other strip-shaped material that can be wound, which is not limited here.

[0077] In other embodiments, the lifting assembly 170 can also be a telescopic rod, one end of the telescopic rod is connected with the first beam plate 115, and the other end is connected with the first door 121 close to the first beam plate 115. The lifting device can also be in other forms, and details are not repeated here.

[0078] Specifically, the temperature control device comprises a heating furnace, a temperature adjusting furnace 151, an oil outlet pipe 152, and an oil return pipe 153. The heating furnace is in communication with the temperature adjusting furnace 151. One end of the oil outlet pipe 152 is in communication with the temperature adjusting furnace 151, and the other end is in communication with the connecting chamber 123. One end of the oil return pipe 153 is in communication with the temperature adjusting furnace 151, and the other end is in communication with the connecting chamber 123. The heating furnace delivers the heated oil to the temperature adjusting furnace 151. The temperature adjusting furnace 151 adjusts the temperature of the oil in the temperature adjusting furnace 151 according to the temperature of the hot press plate 122 and the required temperature. Then, the oil with the adjusted temperature is delivered to the connecting chamber 123 through the oil outlet pipe 152 to adjust the temperature of the hot press plate 122. The oil in the connecting chamber 123 is delivered to the temperature adjusting furnace 151 through the oil return pipe 153, so as to complete the temperature regulation of the hot press plate 122 in the vacuum cavity 112.

[0079] Specifically, the vacuum assembly 140 comprises a vacuum part 141 and a vacuum pipe 142. One end of the vacuum pipe 142 is connected with the vacuum part 141, and the other end is in communication with the inside of the connecting chamber 123, so as to perform vacuumization on the inside of the connecting chamber 123 through the vacuum part 141 and the vacuum pipe 142.

[0080] Specifically, the second chamber door 117 can open or close the fourth opening 125, so as to perform maintenance on the inside of the vacuum chamber 110 and the connecting chamber 123.

[0081] An embodiment of the present application further provides a vacuum hot pressing system, which comprises a control module and a vacuum hot press.

[0082] The control module is connected with the driving assembly 130, the vacuum assembly 140, and the temperature control assembly 150.

[0083] The control module is used to control the driving assembly 130 to drive the hot press plate 122 to move along the first direction OX to approach or move away.

[0084] The control module is used to control the vacuum assembly 140 to perform vacuumization on the vacuum cavity 112.

[0085] The control module is used to control the temperature control assembly 150 to perform temperature control on the vacuum cavity 112.

[0086] In actual use, first, the first door 121 is opened, and the materials to be pressed are placed in the vacuum chamber 110 through the conveying device. Two groups of materials to be pressed can be placed on both sides of the partition 120, or only one group of materials to be pressed can be placed on either side of the partition 120. Each group of materials corresponds to a hot pressing plate assembly, and each material corresponds to the space between two adjacent hot pressing plates 122, that is, each material has a hot pressing plate assembly on both sides in the first direction OX. Then, the first door 121 is closed, and the driving assembly 130 drives the hot pressing plates 122 in any one or both hot pressing plate assemblies to move towards each other in the first direction OX, so that all the materials to be pressed and the hot pressing plates 122 are tightly attached and maintain a set pressure. The vacuum degree in the vacuum chamber 112 is increased, and the first door 121 is pressed against the vacuum chamber 110 and covers the first opening 111 due to the higher atmospheric pressure outside the vacuum chamber 112. When the vacuum degree in the vacuum chamber 112 reaches a set value, the temperature in the vacuum chamber 110 is controlled to make all the materials to be pressed complete cross-linking reaction under the set pressure, temperature and vacuum environment. After pressing, the vacuum degree of the vacuum assembly 140 is reduced, air enters the vacuum chamber 112, and the adhesion of the first door 121 to the vacuum chamber 110 is reduced as the vacuum degree decreases. Then, the first door 121 is opened, and the driving assembly 130 releases the pressure on the hot pressing plates 122, and the hot pressing plates 122 are separated from each other. The materials to be pressed are taken out of the vacuum chamber 112 and enter the next process.

[0087] In this application, the vacuum chamber 112 is separated by the partition 120, so that two groups of materials to be pressed can be arranged on both sides of the partition 120, and each group of hot pressing plates 122 can press multiple materials to be pressed, thereby improving the yield. At the same time, the two groups of materials to be pressed are pressed in the same vacuum chamber 112, so it is not necessary to press the two groups of materials to be pressed by two vacuum pressing machines 100, thereby improving the pressing efficiency and yield while saving the floor space.

[0088] Preferably, the control module can also control the opening and closing of the first door 121 and the second door 117, so that the overall process of the vacuum pressing system is more intelligent.

[0089] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not exist, they should be considered as within the scope of the present disclosure.

[0090] The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a specific manner, but should not be construed as limiting the scope of the patent application. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A vacuum hot press, characterized by, The vacuum hot press comprises: a vacuum chamber having a vacuum cavity and a first opening, the vacuum cavity being in communication with the first opening; a first chamber door connected to the vacuum chamber and capable of covering or opening the first opening; a partition plate extending along a first direction and at least partially disposed in the vacuum cavity; two hot press plate assemblies located in the vacuum cavity and disposed on both sides of the partition plate, each of the hot press plate assemblies comprising a plurality of hot press plates arranged in sequence along the first direction; a driving assembly connected to the vacuum chamber and used to drive the plurality of hot press plates in each of the hot press plate assemblies to move towards each other along the first direction to clamp the material to be pressed.

2. The vacuum hot press of claim 1, wherein, The vacuum chamber comprises a hot press chamber and a connecting chamber, the partition plate and the hot press plate assemblies are located in the hot press chamber, the first opening is provided in the hot press chamber, and the side of the hot press chamber away from the first chamber door is connected to the connecting chamber; The vacuum hot press further comprises a vacuum assembly and a temperature control assembly, both of which are in communication with the interior of the connecting chamber.

3. The vacuum hot press of claim 2, wherein, The hot press chamber comprises a first beam plate and a second beam plate oppositely arranged along the first direction, and a first support plate and a second support plate oppositely arranged along a third direction; The two ends of the first beam plate are respectively connected to the ends of the first support plate and the second support plate away from the installation position, the two ends of the second beam plate are respectively connected to the first support plate and the second support plate, and the second beam plate has a spacing with the installation position, and the two ends of the partition plate are respectively connected to the first beam plate and the second beam plate; The first beam plate, the second beam plate, the first support plate and the second support plate enclose the first opening on one side along the first direction and enclose a second opening on the other side, and the second opening is connected to the interior of the connecting chamber.

4. The vacuum hot press of claim 3, wherein, The second beam plate is located on the side of the first beam plate close to the installation position along the first direction, one end of the partition plate is provided through the second beam plate and connected to the first beam plate, and the other end is supported on the installation position.

5. The vacuum hot press of claim 3, wherein, The driving assembly comprises a first driving mechanism and a second driving mechanism provided through the second beam plate, the two sides of the partition plate along the third direction are respectively a first chamber and a second chamber, and two groups of hot press plates are respectively located in the first chamber and the second chamber; The second beam plate is located on the side of the first beam plate close to the installation position along the first direction, the first driving mechanism is partially located in the first chamber and capable of driving one group of hot press plates to move towards or away from each other, and the second driving mechanism is partially located in the second chamber and capable of driving the other group of hot press plates to move towards or away from each other; The first direction, the second direction and the third direction are perpendicular to each other.

6. The vacuum hot press of claim 5, wherein, The first chamber is provided with a first step group and a second step group on both sides along the third direction, the distance between the first step group and the second step group gradually expands along the first direction away from the installation position, and one set of hot plates is placed between the first step group and the second step group in a one-to-one correspondence; the second chamber is provided with a third step group and a fourth step group on both sides along the third direction, the distance between the third step group and the fourth step group gradually expands along the first direction away from the installation position, and the other set of hot plates is placed between the third step group and the fourth step group in a one-to-one correspondence.

7. The vacuum hot press of claim 6, wherein, The vacuum hot press further comprises a first heat insulation plate, a second heat insulation plate, a third heat insulation plate and a fourth heat insulation plate. One set of the hot plates is located between the first heat insulation plate and the second heat insulation plate, one side of the first heat insulation plate is connected with the first beam plate, and one side of the second heat insulation plate is connected with the first driving mechanism. The other set of the hot plates is located between the third heat insulation plate and the fourth heat insulation plate, one side of the third heat insulation plate is connected with the first beam plate, and one side of the fourth heat insulation plate is connected with the second driving mechanism.

8. The vacuum hot press of claim 7, wherein, The vacuum hot press further comprises a first movable block and a second movable block located in the vacuum cavity, one end of the first movable block is connected with the first driving mechanism, and the other end is connected with the first heat insulation plate. One end of the second movable block is connected with the second driving mechanism, and the other end is connected with the second heat insulation plate.

9. The vacuum hot press of claim 1, wherein, The vacuum hot press further comprises a lifting assembly, one end of the lifting assembly is connected with the vacuum chamber, and the other end is connected with one end of the first door along the first direction away from the installation position, the lifting assembly can drive the first door to cover or open the first opening.

10. A vacuum hot pressing system, characterized by, The vacuum hot pressing system comprises a control module and the vacuum hot press of any one of claims 2-8. The control module is connected with the driving assembly, the vacuum assembly and the temperature control assembly at the same time. The control module is used to control the driving assembly to drive the hot plates to move along the first direction. The control module is used to control the vacuum assembly to vacuumize the vacuum cavity. The control module is used to control the temperature control assembly to control the temperature of the vacuum cavity.

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