Door assembly and laminating apparatus

Abstract

The application provides a door assembly and a laminating device. The laminating device comprises a device main body and a door assembly. The device main body has a feeding port, and the door assembly is arranged on the feeding port. The door assembly comprises a door body. The door body has a first surface. At least one capillary groove is arranged on the first surface. The first surface has a first roughness. The first wall surface of the capillary groove has a second roughness. The first roughness is smaller than the second roughness. The door body further has a collecting groove. The capillary groove is communicated with the collecting groove. Each capillary groove is used for guiding and conveying liquid on the first surface to the collecting groove. Through the arrangement of the capillary groove and the collecting groove, the liquid on the first surface is guided and conveyed into the collecting groove, the liquid is prevented from penetrating along the door body to the door gap, and the liquid is prevented from penetrating to the outer surface of the laminating device to corrode the anti-corrosion heat paint on the outer surface of the laminating device. Therefore, the possibility of corrosion and damage of the laminating device can be reduced, and the service life of the laminating device is prolonged.

Description

Technical Field

[0001] This application belongs to the field of multilayer circuit board manufacturing technology, and more specifically, relates to a door assembly and lamination equipment. Background Technology

[0002] Circuit boards can be classified into single-layer boards, double-layer boards, and multilayer boards according to their structure. A single-layer board has only one circuit layer on the surface of the substrate. A double-layer board has circuit layers on both sides of the substrate. A multilayer board is made by adding copper foil layers to the outside of a double-layer board (in this case, the double-layer board is also called the core board) using prepreg, thus creating a multilayer circuit board. It is important to note that simply attaching the prepreg and copper foil layers to the core board only forms a semi-finished multilayer board. The semi-finished multilayer board needs to be placed in a laminating machine for lamination to transform it into a single, integrated multilayer circuit board.

[0003] FR-4 resin, the most commonly used raw material for circuit board lamination, releases volatiles such as water vapor and small-molecule solvents during the lamination process. These volatiles adhere to the inside of the front door in the vacuum environment of the lamination equipment, and condense into a mixed organic solvent upon cooling on the front door surface, seeping downwards along the inner wall of the front door. During this seepage, the organic solvent corrodes the anti-corrosion and heat-resistant paint on the surface of the lamination equipment, exposing the metal structural components inside to the air, ultimately leading to corrosion and damage to the lamination equipment. Utility Model Content

[0004] The purpose of this application is to provide a door assembly and lamination equipment to solve the technical problem in the prior art where the volatiles released by the raw materials of the circuit board during the lamination process condense into organic solvents in the front door, and the organic solvents seep down to the surface of the lamination equipment and corrode the surface of the equipment.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: In a first aspect, a door assembly is provided, including a door body, the door body having a first surface, the first surface having at least one capillary groove recessed therein, the first surface having a first roughness, the first wall surface of the capillary groove having a second roughness, the first roughness being less than the second roughness; the door body also having a collection groove, the capillary groove communicating with the collection groove, each of the capillary grooves being used to guide and transport liquid from various locations on the first surface to the collection groove.

[0006] In some embodiments, the door body has a top and a bottom that are arranged opposite each other in a vertical direction, the collection groove is disposed near the bottom, and the extension direction of the capillary groove is parallel to the vertical direction or forms an angle with the vertical direction other than 90 degrees.

[0007] In some embodiments, the number of capillary grooves is multiple, and each capillary groove extends from each side edge of the first surface to the collection groove.

[0008] In some embodiments, at least one of the capillary grooves includes a first capillary groove and a second capillary groove, the first capillary groove extends along the vertical direction and communicates with the collection groove, and each of the second capillary grooves extends from each side edge of the first surface to the first capillary groove or the collection groove, and the extension direction of the second capillary groove forms an angle with the vertical direction that is not 90 degrees.

[0009] In some embodiments, the first capillary groove is located at the center of the door body along a second direction, the second direction intersects the vertical direction, and each of the second capillary grooves is located on opposite sides of the first capillary groove along the second direction.

[0010] In some embodiments, the capillary groove has a first width, the first width of the capillary groove being smaller closer to the top and larger closer to the bottom; And / or, the capillary groove has a first end and a second end disposed opposite to each other along its extension direction, the second end being closer to the bottom relative to the first end, and the first width of the capillary groove gradually increasing from the first end to the second end or remaining constant.

[0011] In some embodiments, the door body has a first surface and a second surface disposed opposite to each other along its thickness direction, a portion of the collection groove is recessed relative to the first surface and the second surface, and another portion of the collection groove extends away from the second surface relative to the first surface.

[0012] In some embodiments, the collection tank has a baffle wall located on the side of the first surface opposite to the second surface and spaced apart from the first surface. The top of the baffle wall forms an inlet spaced apart from the first surface, and the inlet communicates with the collection tank.

[0013] In some embodiments, the door body includes a door panel and a collecting component, the collecting component being installed on the door panel, and the collecting component and the door panel together forming the collecting groove; Alternatively, the door body may include a door panel, and the collection groove may be formed on the door panel.

[0014] In some embodiments, the collection trough extends along a second direction, the bottom surface of the collection trough is stepped from its opposite ends along the second direction toward the center, and at least a portion of the bottom surface is inclined relative to the second direction.

[0015] In some embodiments, the door assembly further includes an observer detachably mounted to the door body, the observer being used to observe the liquid level in the collection tank; Alternatively, the door body may be at least partially transparent to allow observation of the liquid level in the collection tank.

[0016] In some embodiments, the door assembly further includes a seal, and a mounting groove is formed around a periphery of the door body, the seal being at least partially embedded in the mounting groove.

[0017] Secondly, this application also provides a laminating device, including a device body and the aforementioned door assembly, wherein the device body has a feeding port and the door assembly covers the feeding port.

[0018] The beneficial effects of the door assembly and laminating equipment provided in this application are as follows: By forming at least one capillary groove in the recess of the first surface of the door body, and designing the first roughness of the first surface to be less than the second roughness of the first wall surface of the capillary groove, when liquid flows on the first surface, the liquid is preferentially drawn into the capillary groove and adheres to the first wall surface of the capillary groove, flowing along the first wall surface of the capillary groove; at the same time, by connecting the capillary groove with the collection tank, each capillary groove can guide and transport the liquid from various parts of the first surface to the collection tank, that is, the liquid on the first surface is directionally transported to the collection tank for collection, preventing the liquid from seeping into the door gap along the door body and preventing the liquid from seeping into the outer surface of the laminating equipment to corrode the anti-corrosion thermal paint on the outer surface of the laminating equipment, thereby reducing the possibility of corrosion and damage to the laminating equipment, thus improving the service life of the laminating equipment, and also reducing the number of downtimes due to cleaning, that is, improving equipment utilization and production efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the front side of the lamination equipment provided in the embodiments of this application; Figure 2 for Figure 1 Schematic diagram of the cross section of AA; Figure 3 for Figure 2 A magnified structural diagram of part B in the middle section; Figure 4 A side view of a door assembly provided in an embodiment of this application; Figure 5 for Figure 4 Cross-sectional view of CC; Figure 6 for Figure 5 A magnified structural diagram of section D in the middle; Figure 7 An exploded view of the door assembly provided in an embodiment of this application; Figure 8 A three-dimensional structural diagram of the collecting component in the door assembly provided in an embodiment of this application; Figure 9 This is a side view of the collecting component in the door assembly provided in an embodiment of this application.

[0021] The following are the labeling elements in the figure: 1. Door assembly; 100. Door body; 110. Door panel; 111. First surface; 112. Second surface; 113. Top; 114. Bottom; 115. Third side; 116. Fourth side; 117. Capillary groove; 117a. First capillary groove; 117b. Second capillary groove; 1171. First wall surface; 1172. First end; 1173. Second end; 118. Guide surface; 119. First groove portion; 120. Collector; 121. Baffle ; 122, side wall; 123, second groove; 130, collection groove; 131, first stepped surface; 132, second stepped surface; 133, third stepped surface; 134, fourth stepped surface; 140, mounting groove; 150, mounting hole; 160, inlet; 200, observer; 300, seal; 2, main body of equipment; 23, driving component; 24, transmission mechanism; 25, belt clamp; X, vertical direction; Y, second direction; Z, third direction. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0024] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] As described in the background section, FR-4 resin, the most commonly used raw material for circuit board lamination, releases volatiles such as water vapor and small-molecule solvents during the lamination process. These volatiles adhere to the inside of the front door in the vacuum environment of the lamination equipment and condense into a mixed organic solvent upon cooling on the front door surface, seeping downwards along the inner wall of the front door. During this seepage, the organic solvent corrodes the anti-corrosion and heat-resistant paint on the surface of the lamination equipment, exposing the metal structural components within the lamination equipment to the air, ultimately leading to corrosion and damage to the lamination equipment.

[0027] To address the aforementioned technical problems, this application provides a door assembly 1 and a lamination device.

[0028] Please see Figure 1 and Figure 2 The laminating equipment provided in the embodiments of this application will now be described. The laminating equipment includes a main body 2 and a door assembly 1. The main body 2 has a feeding port, and the door assembly 1 covers the feeding port.

[0029] Specifically, the feeding port is mainly used to feed the circuit board into and out of the main body 2 of the equipment. For example, before lamination, the circuit board to be laminated is first inserted into the main body 2 of the equipment through the feeding port, and the door assembly 1 is placed on the feeding port; after lamination, the door assembly 1 is opened and the laminated circuit board is taken out through the feeding port.

[0030] In some embodiments, the door assembly 1 is sealed at the feed port. Specifically, the lamination of the circuit board needs to be carried out in a vacuum environment. The vacuum environment allows the circuit board to effectively expel gas during the lamination process, prevents the formation of air bubbles, and improves the lamination quality and electrical performance. In this embodiment, by sealing the door assembly 1 at the feed port, the airtightness of the lamination equipment can be ensured, so that when the lamination equipment is evacuated, the vacuum environment of the lamination equipment can be maintained.

[0031] Please see Figure 1 and Figure 2 The door assembly 1 provided in the embodiments of this application will now be described. The door assembly 1 is used to cover the feed port of the equipment body 2. It can be understood that in other embodiments of this application, the door assembly 1 can also cover the feed port of other equipment, such as the feed port of machining equipment, injection molding equipment, vapor deposition equipment or laser environment equipment.

[0032] Please see Figure 3 and Figure 4 The door assembly 1 includes a door body 100, which has a first surface 111. The first surface 111 is recessed with at least one capillary groove 117. The first surface 111 has a first roughness, and the first wall surface 1171 of the capillary groove 117 has a second roughness. The first roughness is less than the second roughness. The door body 100 also has a collection groove 130. The capillary groove 117 and the collection groove 130 are connected. Each capillary groove 117 is used to guide and transport liquid from each location on the first surface 111 to the collection groove 130.

[0033] It should be noted that the first roughness of the first surface 111 is less than the second roughness of the first wall surface 1171 of the capillary groove 117. Since the area with larger roughness has a larger contact area with the liquid than the smooth area, the liquid is more likely to spread on the first wall surface 1171 of the capillary groove 117. In addition, the capillary groove 117 itself has a capillary adsorption effect, so when there is liquid flowing on the first surface 111, the liquid is preferentially drawn into the capillary groove 117 and adheres to the first wall surface 1171 of the capillary groove 117, flowing along the first wall surface 1171 of the capillary groove 117.

[0034] The capillary channel 117 is connected to the collection tank 130. This connection can be either direct or through other capillary channels 117. Each capillary channel 117 is used to guide and transport liquid from various locations on the first surface 111 to the collection tank 130. This means that each capillary channel 117 is distributed across various locations on the first surface 111. This distribution can be uniform or non-uniform. All capillary channels 117 work together to guide and transport liquid from various locations on the first surface 111 to the collection tank 130.

[0035] The collection tank 130 has a certain volume and is used to collect and store the liquid mentioned above.

[0036] In this embodiment of the application, the door assembly 1 has at least one capillary groove 117 recessed in the first surface 111 of the door body 100. The first roughness of the first surface 111 is designed to be smaller than the second roughness of the first wall surface 1171 of the capillary groove 117. This allows the liquid to be preferentially drawn into the capillary groove 117 when there is liquid flow on the first surface 111, and to adhere to the first wall surface 1171 of the capillary groove 117, flowing along the first wall surface 1171 of the capillary groove 117. Simultaneously, by connecting the capillary groove 117 to the collection tank 130, each... The capillary groove 117 can guide and transport liquid from various parts of the first surface 111 to the collection tank 130, that is, to directionally transport the liquid on the first surface 111 to the collection tank 130 for collection, preventing the liquid from seeping into the door gap along the door body 100, and preventing the liquid from seeping into the outer surface of the laminating equipment to corrode the anti-corrosion paint on the outer surface of the laminating equipment. This reduces the possibility of the laminating equipment being corroded and damaged, thereby increasing the service life of the laminating equipment. It also reduces the number of downtimes due to cleaning, which means improving equipment utilization and production efficiency.

[0037] Optionally, the surface energy of the first surface 111 is less than 25 mN / m. For example, the surface energy of the first surface 111 can be 24.95 mN / m, 24 mN / m, 23 mN / m, 22 mN / m, 21 mN / m, 20 mN / m, 19 mN / m, 18 mN / m, 17 mN / m, 16 mN / m, 15 mN / m or less. In this embodiment, by reducing the surface energy of the first surface 111 to less than 25 mN / m, the adhesion ability of the volatile condensate to the first surface 111 can be significantly reduced, so that the liquid can be absorbed and gathered by the capillary groove 117, reducing the liquid flow along the first surface 111 to the gap between the door body 100 and other structures.

[0038] In this application, the first roughness of the first surface 111 can be reduced in different ways.

[0039] For example, in some examples, the smoothness of the first surface 111 can be increased by coating the surface of the door body 100 with a low surface energy material layer, thereby reducing the first roughness of the first surface 111. The specific low surface energy material can be PTFE / ceramic composite material. In addition, the door body 100 can be made of corrosion-resistant composite material and coated with a low surface energy material layer to achieve better results, such as reducing the adhesion of the first surface 111 to volatile condensate by more than 70% and reducing accumulation.

[0040] For example, in other examples, the surface roughness of the first surface 111 can be reduced by surface treatment techniques, such as by fine grinding, thereby reducing the probability of aggregate adhesion.

[0041] In this application, the capillary groove 117 can be formed by a variety of different processing methods.

[0042] For example, in some examples, the capillary groove 117 can be processed by laser engraving so that the surface roughness of the capillary groove 117 is greater than the surface roughness of the first surface 111. Since the area with larger roughness has a larger contact area with the liquid than the smooth area, the laser-processed area generates a capillary adsorption force on the liquid, and the liquid spreads more easily in the laser-processed area. Because the laser-processed area has a capillary adsorption effect on the liquid, the condensed liquid will mainly move along the capillary groove 117.

[0043] For example, in other examples, the capillary groove 117 can also be machined, which can also make the surface roughness of the capillary groove 117 greater than the surface roughness of the first surface 111.

[0044] In some embodiments, please refer to Figure 4 The door body 100 has a top 113 and a bottom 114 arranged opposite each other along the vertical direction X. The collection groove 130 is arranged near the bottom 114. The extension direction of the capillary groove 117 is parallel to the vertical direction or forms an angle with the vertical direction other than 90 degrees.

[0045] It should be noted that, in the normal assembly state, the top 113 of the door body 100 is located above the bottom 114 of the door body 100, and the collection tank 130 is located near the bottom of the door body 100 so that the liquid can converge into the collection tank 130 under its own gravity and under the guidance of the capillary trough 117.

[0046] Additionally, it should be noted that the extension direction of the capillary groove 117 is parallel to the vertical direction or forms an angle with the vertical direction other than 90 degrees, so that the liquid in the capillary groove 117 can be transported downward along the capillary groove 117 by gravity.

[0047] In some embodiments, please refer to Figure 4 There are multiple capillary grooves 117, each extending from one side edge of the first surface 111 toward the collection tank 130. This arrangement allows each capillary groove 117 to guide and transport liquid from each side edge of the first surface 111 to the collection tank 130, thereby reducing the possibility of liquid remaining on the first surface 111 and reducing the seepage of liquid from the edges of the first surface 111 into the door gap.

[0048] For some specific embodiments, please refer to Figure 4The door body 100 has a third side 115 and a fourth side 116 arranged opposite to each other along the second direction Y, which intersects with the vertical direction X; each capillary groove 117 extends from the edge of the top 113, the third side 115 and the fourth side 116 toward the center of the door body 100 along the second direction Y and / or toward the collection groove 130.

[0049] It should be noted that each capillary groove 117 extends from the edges of the top 113, the third side 115, and the fourth side 116 toward the center of the door body 100 along the second direction Y and / or toward the collection groove 130. Alternatively, the capillary groove 117 may extend from the edges of the top 113, the third side 115, or the fourth side 116 toward the center of the door body 100 along the second direction Y, or from the edges of the top 113, the third side 115, or the fourth side 116 toward the collection groove 130, or from the edges of the top 113, the third side 115, or the fourth side 116 toward the center of the door body 100 along the second direction Y and toward the collection groove 130. This allows liquid to be guided into the collection groove 130, or guided to the center of the door body 100 and flow from the center into the collection groove 130.

[0050] In this embodiment, by extending each capillary groove 117 from the edges of the top 113, the third side 115 and the fourth side 116 respectively, each capillary groove 117 can guide and transport the liquid from each side edge of the first surface 111 to the collection tank 130, thereby reducing the seepage of liquid from the edge of the first surface 111 to the door gap.

[0051] In this application, there are multiple ways to extend each capillary groove 117. The typical examples are described in detail below.

[0052] In some embodiments, please refer to Figure 4 At least one capillary groove 117 includes a first capillary groove 117a and a second capillary groove 117b. The first capillary groove 117a extends along the vertical direction X and communicates with the collection groove 130. Each second capillary groove 117b extends from each side edge of the first surface 111 to the first capillary groove 117a or the collection groove 130. The extension direction of the second capillary groove 117b forms an angle with the vertical direction that is not 90 degrees.

[0053] Each of the second capillary grooves 117b extends from each side edge of the first surface 111 to the first capillary groove 117a or the collection tank 130. The location of the second capillary grooves 117b can be selected according to their distribution position. When the second capillary grooves 117b are far from the collection tank 130, they can be extended to the first capillary groove 117a. When the second capillary grooves 117b are close to the collection tank 130, they can be directly extended to the collection tank 130 to reduce the liquid flow path.

[0054] Specifically, the capillary groove 117 is provided with a first end 1172 and a second end 1173 arranged opposite to each other along its extension direction. The first end 1172 is the end of the capillary groove 117 near the edge of the first surface 111, and the second end 1173 is the end of the capillary groove 117 near the collection groove 130.

[0055] In this embodiment, by setting the first capillary groove 117a extending along the vertical direction X, each second capillary groove 117b can extend to communicate with the first capillary groove 117a. This allows the second end 1173 of the second capillary groove 117b to communicate with the first capillary groove 117a when the first end 1172 of the second capillary groove 117b is far from the collection tank 130, without needing to extend the second end 1173 of the second capillary groove 117b to the collection tank 130. This reduces the extension length of the second capillary groove 117b, lowers the manufacturing difficulty of the second capillary groove 117b, and also reduces the distribution density of the second capillary groove 117b.

[0056] In the above embodiments, please refer to Figure 4 The first capillary groove 117a is located at the center of the door body 100 along the second direction Y, which intersects the vertical direction X. Each second capillary groove 117b is located on opposite sides of the first capillary groove 117a along the second direction Y. By placing the first capillary groove 117a at the center of the door body 100 along the second direction Y, the extension length of each second capillary groove 117b from the edge of the first surface 111 to the first capillary groove 117a can be reduced. Simultaneously, the liquid in the second capillary grooves 117b on both sides can converge in the first capillary groove 117a and be vertically transported along the first capillary groove 117a to the collection tank 130.

[0057] Optionally, the vertical direction X is perpendicular to the second direction Y. In other embodiments, the vertical direction X and the second direction Y may not be perpendicular, for example, they may be at an angle of 70 degrees, 75 degrees, 80 degrees or 85 degrees.

[0058] Optionally, each of the second capillary grooves 117b is symmetrically distributed on opposite sides of the first capillary groove 117a along the second direction Y, which not only reduces the processing difficulty of the second capillary grooves 117b, but also makes the surface of the door body 100 more aesthetically pleasing.

[0059] Optionally, two adjacent second capillary grooves 117b have a first spacing, and the first spacing of each second capillary groove 117b is approximately equal, that is, each second capillary groove 117b is approximately evenly distributed, so that the liquid at each location of the first surface 111 can be absorbed and transported by the second capillary groove 117b.

[0060] Optionally, the first capillary trough 117a extends from the top 113 to the collection tank 130. The first capillary trough 117a can absorb liquid from the surrounding area and transport it to the collection tank 130, and the first collection tank 130 can transport the liquid transported from the second capillary trough 117b to the collection tank 130.

[0061] In some embodiments, please refer to Figure 4 The capillary groove 117 has a first width, which is smaller closer to the top 113 and larger closer to the bottom 114.

[0062] The first width of the capillary groove 117 refers to the distance between the two opposing first walls 1171 connecting the first end 1172 and the second end 1173 of the capillary groove 117. A smaller first width results in a stronger capillary effect, but also a smaller liquid capacity. The closer to the bottom 114, the more liquid the capillary groove 117 needs to hold; therefore, the first width of the capillary groove 117 closer to the bottom 114 is set larger to allow it to hold more liquid.

[0063] Optionally, the capillary groove 117 has a first end 1172 and a second end 1173 disposed opposite each other along its extending direction. The second end 1173 is closer to the bottom than the first end 1172. The first width of the same capillary groove 117 remains unchanged from the first end 1172 to the second end 1173, that is, the capillary groove 117 has a constant width structure. It can be understood that in other embodiments, the first width of the capillary groove 117 may also be set to gradually increase from the first end 1172 to the second end 1173, so that the position of the capillary groove 117 near the second end 1173 can accommodate more liquid.

[0064] In some embodiments, please refer to Figure 2 The collection groove 130 is at least partially recessed relative to the first surface 111.

[0065] The door body 100 has a first surface 111 and a second surface 112 arranged opposite to each other along its thickness direction. The collection groove 130 is recessed relative to the first surface 111, meaning that the collection groove 130 is recessed relative to the first surface 111 towards the second surface 112. The collection groove 130 is at least partially recessed relative to the first surface 111. This can mean that the entire collection groove 130 is recessed from the first surface 111 towards the second surface 112, or that a portion of the collection groove 130 is recessed from the first surface 111 towards the second surface 112, and a portion of the collection groove 130 extends from the first surface 111 in a direction away from the second surface 112.

[0066] In this embodiment, by setting the collection tank 130 to be at least partially recessed relative to the first surface 111, on the one hand, the liquid transported from each capillary channel 117 to the bottom 114 can flow into the collection tank 130 under the action of gravity, and on the other hand, the collection tank 130 can reduce the space occupied by the collection tank 130 outside the door body 100.

[0067] For some specific embodiments, please refer to Figure 5 and Figure 6 The door body 100 has a first surface 111 and a second surface 112 that are disposed opposite to each other along its thickness direction. A portion of the collection groove 130 is recessed relative to the first surface 111, and another portion of the collection groove 130 extends away from the second surface 112 relative to the first surface 111. The above arrangement allows the liquid transported from the capillary groove 117 to be directly transported downwards into the collection groove 130 without dripping into other locations.

[0068] It should be noted that the thickness direction of the door body 100 is... Figure 6 The third direction Z is perpendicular to the vertical direction X and the second direction Y.

[0069] In some embodiments, the first depth of the collection groove 130 being recessed relative to the first surface 111 is greater than the second depth of the capillary groove 117. This arrangement ensures that the orthographic projection of the capillary groove 117 onto the collection groove 130 is within the range of the collection groove 130 along the vertical direction X. Liquid transported from the capillary groove 117 can be directly transported downwards into the collection groove 130 without dripping onto other locations.

[0070] In some embodiments, please refer to Figure 6 The first surface 111 is connected to the top surface of the collection tank 130 by a guide surface 118. The guide surface 118 is used to guide the liquid in the capillary tank 117 and the first surface 111 to the collection tank 130. The guide surface 118 can guide the liquid and prevent the liquid from dripping to other places.

[0071] For details, please refer to Figure 6The guide surface 118 is connected between the first surface 111 and the collection tank 130 located on the top surface. The guide surface 118 is inclined relative to the vertical direction X and the third direction Z, so as to guide the liquid of the first surface 111 into the collection tank 130.

[0072] In some embodiments, please refer to Figure 6 The collection tank 130 has a baffle wall 121, which is located on the side of the first surface 111 facing away from the second surface 112 and spaced apart from the first surface 111. The top of the baffle wall 121 forms an inlet 160 spaced apart from the first surface 111, and the inlet 160 communicates with the collection tank 130. By setting the baffle wall 121 outside the first surface 111, the liquid in the collection tank 130 can be blocked, reducing liquid splashing and escaping.

[0073] In some embodiments, please refer to Figure 6 and Figure 7 The door body 100 includes a door panel 110 and a collecting component 120. The collecting component 120 is installed on the door panel 110, and the collecting component 120 and the door panel 110 together enclose a collecting groove 130. The collecting groove 130 is formed by the collecting component 120 and the door panel 110 together, which can reduce the processing difficulty and processing cost of the collecting groove 130.

[0074] The first surface 111 and the capillary groove 117 are both formed on the door panel 110.

[0075] Optionally, the collection component 120 is detachably connected to the door panel 110, thereby facilitating the maintenance and replacement of the collection component 120.

[0076] Optionally, the collection component 120 is locked to the door panel 110 by fasteners. The fastener connection not only ensures a secure lock but also facilitates disassembly and assembly.

[0077] Optionally, please refer to Figures 6 to 8 The first surface 111 of the door body 100 is recessed near the bottom 114 to form a first groove 119. The collecting component 120 includes a baffle 121 and three sidewalls 122 connected to the baffle 121. The three sidewalls 122 are respectively connected to the bottom side of the baffle 121 and the opposite sides of the baffle 121 along the second direction Y. The baffle 121 and the three sidewalls 122 together form a second groove 123. During assembly, the three sidewalls 122 are at least partially inserted into the first groove 119, and the three sidewalls 122 are locked to the door body 100 by fasteners, so that the first groove 119 and the second groove 123 together form a collecting groove 130.

[0078] In other embodiments of this application, the door body 100 may not be divided into a door panel 110 and a collection member 120. Specifically, the door body 100 includes a door panel 110, and a collection groove 130 is formed on the door panel 110.

[0079] In some embodiments, please refer to Figure 8 The collection tank 130 extends along the second direction Y, and the two opposite ends of the collection tank 130 are close to the opposite sides of the door body 100 along the second direction Y. This arrangement allows the liquid transported downward from the first surface 111 and each capillary groove 117 to flow into the collection tank 130, thereby reducing the possibility of the liquid flowing downward into the collection tank 130.

[0080] In some embodiments, the bottom surface of the collection tank 130 is at least partially inclined relative to the second direction Y. In this application, because the liquid is relatively viscous, the inclined bottom surface increases the driving force for liquid flow, thus facilitating liquid flow.

[0081] In some embodiments, please refer to Figure 8 and Figure 9 The collection tank 130 extends along the second direction Y. The bottom surface of the collection tank 130 is stepped from its opposite ends along the second direction Y towards the center, and at least a portion of the bottom surface is inclined relative to the second direction Y. By making the bottom surface of the collection tank 130 stepped, the height difference of the steps increases the flow force of the liquid, thereby allowing the liquid to flow from both sides of the collection tank 130 towards the center. In addition, the inclined bottom surface further improves the fluidity of the liquid.

[0082] In some specific embodiments, the bottom surface of the collection tank 130 is symmetrically arranged along the second direction Y, with one side described in detail. The bottom surface of the collection tank 130 includes a first stepped surface 131, a second stepped surface 132, and a third stepped surface 133, which are sequentially connected from one edge of the collection tank 130 along the second direction Y to a position near the center of the collection tank 130. The first stepped surface 131 has a first inclination angle relative to the second direction Y, and the second stepped surface 132 has a second inclination angle relative to the second direction Y. The first inclination angle is smaller than the second inclination angle, and the area of ​​the first stepped surface 131 is larger than the area of ​​the second stepped surface 132. The first stepped surface 131 is mainly used to receive liquid introduced downward from the first surface 111 and the capillary groove 117, and the second stepped surface 132 is mainly used to preferentially guide the liquid from the first stepped surface 131 to the third stepped surface 133. The third stepped surface 133 is parallel to the second direction Y, and the area of ​​the third stepped surface 133 is larger than the area of ​​the first stepped surface 131. The third stepped surface 133 is mainly used to hold liquid. Understandably, in other embodiments, the third stepped surface 133 may also be inclined relative to the second direction Y.

[0083] For some specific embodiments, please refer to Figure 8 and Figure 9 The bottom surface of the collection tank 130 also includes a fourth stepped surface 134, which extends obliquely from the third stepped surface 133 to the center of the collection tank 130 along the second direction Y. It is understood that in other embodiments, the fourth stepped surface 134 may also be a surface parallel to the second direction Y.

[0084] In some embodiments, please refer to Figure 6 and Figure 7 The door assembly 1 also includes an observer 200, which is detachably mounted on the door body 100. The observer 200 is used to observe the liquid level in the collection tank 130. During use, the operator can observe the liquid level in the collection tank 130 through the observer 200. When the liquid level in the collection tank 130 is too high, the liquid in the collection tank 130 can be drained out.

[0085] The liquid in the collection tank 130 can be drained in various ways. For example, the observer 200 can be threaded onto the door body 100, and the liquid in the collection tank 130 can be drained by rotating and removing the observer 200.

[0086] Specifically, the observer 200 is located on the second side 112, and the door body 100 also has a mounting hole 150 for mounting the observer 200. The mounting hole 150 is connected to the collection tank 130, so that the liquid level of the collection tank 130 can be observed through the observer 200.

[0087] In other embodiments, a drain hole communicating with the collection tank 130 may be provided elsewhere to drain the liquid.

[0088] In some other embodiments of this application, the observer 200 may be omitted, and the door body 100 may be at least partially transparent to observe the liquid level in the collection tank 130. Furthermore, a drain hole communicating with the collection tank 130 may be provided. Under normal use, the drain hole is sealed with a cover, and the cover is opened to drain the liquid during drainage.

[0089] In some embodiments, please refer to Figure 6 The door assembly 1 also includes a seal 300. A mounting groove 140 is formed around the periphery of the door body 100, and the seal 300 is at least partially embedded in the mounting groove 140. The seal 300 is designed to abut against the door body 2 when the door assembly 1 is connected to the device body 2, thereby creating a tight seal between the door assembly 1 and the device body 2 and ensuring a vacuum environment within the device body 2.

[0090] In some embodiments, please refer to Figure 1and Figure 2 The door assembly 1 is slidably disposed on the front side of the equipment body 2 along the vertical direction X. The top of the equipment body 2 is provided with a drive component 23 and a transmission mechanism 24. The drive component 23 drives the door assembly 1 to rise and fall through the transmission mechanism 24 to realize the opening and sealing of the feeding port.

[0091] Optionally, the transmission mechanism 24 includes a belt conveyor mechanism, which is connected to the door assembly 1 via a belt clamp 25. It is understood that in other embodiments, the transmission mechanism 24 may also be a chain conveyor mechanism, a ball screw mechanism, etc.

[0092] Optionally, the drive unit 23 is a rotary motor.

[0093] In other embodiments of this application, each capillary groove 117 extends from each side edge of the first surface 111 to the collection groove 130, that is, each capillary groove 117 is directly connected to the collection groove 130, and each capillary groove 117 directly guides and delivers liquid to the collection groove 130. For example, when the door body 100 is rectangular, the door body 100 also has a third side 115 and a fourth side 116 along the second direction Y, and each capillary groove 117 extends from the top 113, the edge of the third side 115, and the edge of the fourth side 116 of the door body 100 to the collection groove 130. As another example, when the door body 100 is circular, each capillary groove 117 extends to each edge of the circle to the collection groove 130.

[0094] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A door assembly, characterized in that, The device includes a door body, which has a first surface with at least one capillary groove recessed therein. The first surface has a first roughness, and the first wall surface of the capillary groove has a second roughness, wherein the first roughness is less than the second roughness. The door body also has a collection groove, which is connected to the capillary groove. Each capillary groove is used to guide and transport liquid from various locations on the first surface to the collection groove.

2. The door assembly as claimed in claim 1, characterized in that, The door body has a top and a bottom that are arranged opposite each other in the vertical direction. The collection groove is located near the bottom. The extension direction of the capillary groove is parallel to the vertical direction or forms an angle with the vertical direction other than 90 degrees.

3. The door assembly as described in claim 2, characterized in that, The number of capillary grooves is multiple, and each capillary groove extends from each side edge of the first surface to the collection groove.

4. The door assembly as claimed in claim 2, characterized in that, At least one of the capillary grooves includes a first capillary groove and a second capillary groove. The first capillary groove extends along the vertical direction and communicates with the collection groove. Each of the second capillary grooves extends from each side edge of the first surface to the first capillary groove or the collection groove. The extension direction of the second capillary groove forms an angle with the vertical direction that is not 90 degrees.

5. The door assembly as claimed in claim 4, characterized in that, The first capillary groove is located at the center of the door body along the second direction, which intersects the vertical direction. Each second capillary groove is located on opposite sides of the first capillary groove along the second direction.

6. The door assembly as claimed in claim 2, characterized in that, The capillary groove has a first width, which is smaller closer to the top and larger closer to the bottom. And / or, the capillary groove has a first end and a second end disposed opposite to each other along its extension direction, the second end being closer to the bottom relative to the first end, and the first width of the capillary groove gradually increasing from the first end to the second end or remaining constant.

7. The door assembly as claimed in any one of claims 1 to 6, characterized in that, The door body has a first surface and a second surface that are arranged opposite to each other along its thickness direction. A portion of the collection groove is recessed inward relative to the first surface and the second surface, while another portion of the collection groove extends away from the second surface relative to the first surface.

8. The door assembly as claimed in claim 7, characterized in that, The collection tank has a baffle wall located on the side of the first surface away from the second surface and spaced apart from the first surface. The top of the baffle wall forms an inlet spaced apart from the first surface, and the inlet communicates with the collection tank.

9. The door assembly as claimed in any one of claims 1 to 6, characterized in that, The door body includes a door panel and a collecting component. The collecting component is installed on the door panel, and the collecting component and the door panel together form the collecting groove. Alternatively, the door body may include a door panel, and the collection groove may be formed on the door panel.

10. The door assembly as claimed in any one of claims 1 to 6, characterized in that, The collection trough extends along the second direction, and the bottom surface of the collection trough is stepped from its opposite ends along the second direction toward the center, and at least part of the bottom surface is inclined relative to the second direction.

11. The door assembly as claimed in any one of claims 1 to 6, characterized in that, The door assembly also includes an observer, which is detachably mounted on the door body and is used to observe the liquid level in the collection tank; Alternatively, the door body may be at least partially transparent to allow observation of the liquid level in the collection tank.

12. The door assembly as claimed in any one of claims 1 to 6, characterized in that, The door assembly also includes a seal, and a mounting groove is formed around the periphery of the door body, the seal being at least partially embedded in the mounting groove.

13. A lamination apparatus, characterized in that, The device includes a main body and a door assembly as described in any one of claims 1 to 12, wherein the main body has a feed port and the door assembly covers the feed port.

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