Hot pressing mold and cleaning method of hot pressing mold

Abstract

The invention discloses a hot pressing mold and a cleaning method of the hot pressing mold. The hot pressing mold comprises an upper mold plate, a lower mold plate, a driving mechanism, an air suction mechanism and a heating mechanism. The upper die plate is provided with a male die. The lower mold plate is provided with a cavity, a first air suction channel and a second air suction channel, the first air suction channel is communicated with the cavity and the second air suction channel, and the second air suction channel penetrates through the lower mold plate and forms an air suction port in the lower mold plate; the driving mechanism is in driving connection with the upper template or the lower template; the suction mechanism communicates with the suction port; the heating mechanism is arranged on the lower die plate. And the air suction mechanism and the heating mechanism are matched with the upper mold plate and the lower mold plate for mold closing to realize hot pressing of the wet blank. In the process of cleaning the carbon deposits in the second air suction channel, the cleaning rod penetrates into the second air suction channel through the air suction port in one side, the carbon deposits in the second air suction channel are scraped off and pushed out of the air suction port in the other side, and therefore the carbon deposits in the second air suction channel can be cleaned under the condition that the lower die plate does not need to be dismantled, and cleaning is convenient.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to a hot pressing mold and a cleaning method for the hot pressing mold. Background Art

[0002] In the production process of pulp molded products, after the wet embryo is formed, it needs to be placed in a hot pressing mold for hot pressing. In related technologies, the hot pressing mold includes an upper mold and a lower mold. The lower mold forms a cavity, and the lower mold is provided with multiple air channels and guide grooves with smaller diameters. The guide grooves are opened on the side of the lower mold away from the cavity. The air channels connect the cavity and the guide grooves, and the guide grooves are connected to the suction mechanism. During the hot pressing of the wet embryo, the suction mechanism can generate negative pressure, and absorb the moisture of the wet embryo in the cavity through the guide grooves and air channels. In addition, the lower mold is connected to a heating plate on the side where the guide grooves are formed. The heating plate is used to heat the lower mold to heat the wet embryo. Thus, the wet embryo is converted into a dry embryo by absorbing water and heating. During the water absorption process, the water will be mixed with paper scraps, and some of the paper scraps will adhere to the guide groove. Due to the heating effect of the heating plate, the lower mold will heat up, which will cause the paper scraps to carbonize and adhere to the guide groove. Therefore, the carbon deposits in the guide groove need to be cleaned regularly. During the cleaning process, both the lower mold and the heating plate need to be removed, which makes cleaning inconvenient. Summary of the Invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a hot pressing mold and a cleaning method for the hot pressing mold, which can facilitate cleaning.

[0004] According to the first embodiment of the present application, the hot pressing mold includes: an upper mold plate, a lower mold plate, a driving mechanism, an air suction mechanism and a heating mechanism.

[0005] The upper template is provided with a punch; the lower template is provided with a cavity, and the lower template is provided with a first air suction channel and a second air suction channel, one end of the first air suction channel is connected to the cavity, and the other end is connected to the second air suction channel, the second air suction channel runs through the opposite sides of the lower template and forms an air suction port on the lower template, at least one of the air suction ports is used to connect to the suction mechanism or penetrate the cleaning rod; a driving mechanism drives the upper template or the lower template to close the mold of the upper template and insert the punch into the cavity; the suction mechanism is connected to the suction port; the heating mechanism is arranged on the side of the lower template away from the upper template.

[0006] According to the hot pressing mold of the first embodiment of the present application, there are at least the following beneficial effects: a driving mechanism drives the upper and lower templates to move toward each other so that the upper and lower templates are molded together, and at the same time, the punch of the upper template can be inserted into the mold cavity of the lower template, and the punch cooperates with the mold cavity to press the wet embryo to squeeze out the moisture in the wet embryo, and the suction mechanism sucks air into the mold cavity through the second suction channel and the first suction channel, so that the moisture in the wet embryo in the mold cavity flows out through the first suction channel and the second suction channel, and at the same time, the heating mechanism can heat the lower template to heat and dry the wet embryo, thereby achieving hot pressing of the wet embryo through the suction mechanism and the heating mechanism in conjunction with the upper and lower templates in the mold. In the process of cleaning carbon deposits in the second suction channel, it is only necessary to disconnect the suction port and the suction mechanism, and then insert the cleaning rod into the second suction channel through the suction port on one side, scrape off the carbon deposits in the second suction channel, and push it out from the suction port on the other side, so that the carbon deposits in the second suction channel can be cleaned without removing the lower template, which is convenient for cleaning.

[0007] According to some embodiments of the present application, an air receiving assembly is further included, which is detachably connected to the lower template, the air receiving assembly is connected to the air suction port, and the air receiving assembly is used to connect to the air suction mechanism.

[0008] According to some embodiments of the present application, a plurality of second air suction channels are provided, and the plurality of second air suction channels form a plurality of air suction ports on the same side of the lower template, and the air receiving assembly cover is provided on one side of the lower template to communicate with the plurality of air suction ports.

[0009] According to some embodiments of the present application, the air receiving assembly includes a shielding plate and a connecting frame, the connecting frame is connected to the lower template, an opening is formed at one end of the connecting frame facing away from the lower template, the opening is opposite to the air intake port, the shielding plate is movably connected to the connecting frame to shield or open the opening; an air receiving cavity is defined between the connecting frame and the shielding plate, the air receiving cavity connects the air intake port, the opening and the air intake mechanism.

[0010] According to some embodiments of the present application, the air connection assembly further includes a snap-fit structure, and the connecting frame and the shielding plate are detachably connected via the snap-fit structure.

[0011] According to some embodiments of the present application, two air connection components are provided, and the two air connection components are connected to opposite sides of the lower template.

[0012] According to some embodiments of the present application, a diameter of the first air suction channel is smaller than a diameter of the second air suction channel.

[0013] According to some embodiments of the present application, the second air suction channel is located on one side of the mold cavity, and the first air suction channel extends in a straight direction.

[0014] According to some embodiments of the present application, each of the mold cavities is connected to a second air suction channel through a plurality of the first air suction channels.

[0015] A method for cleaning a hot pressing mold according to a second embodiment of the present application is used to clean the hot pressing mold of the first embodiment, comprising the following steps: Release the connection between the suction mechanism and the suction port on the lower template; The cleaning rod passes through the suction port on one side of the template and enters the second suction channel; The cleaning rod pushes the carbon deposits in the second suction channel out from the suction port on the other side of the template.

[0016] The cleaning method of the hot pressing mold according to the second embodiment of the present application has at least the following beneficial effects: including all the beneficial effects of the hot pressing mold of the above-mentioned first embodiment, which will not be repeated here.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present application is further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic structural diagram of the lower template in the hot pressing mold of the embodiment of the first aspect of the present application; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 Exploded view of the middle and lower templates; Figure 4 for Figure 1 Top view of the middle and lower templates; Figure 5 for Figure 4 Cross-section along the mid-BB direction; Figure 6 for Figure 4 Cross-sectional view in CC direction.

[0019] Reference numerals: Lower template 100, cavity 110, first air suction channel 120, second air suction channel 130, air suction port 140, suction port 150; The air connection assembly 200 , the shielding plate 210 , the connecting frame 220 , the opening 221 , the air connection head 230 , the air connection cavity 240 , and the buckle structure 250 . DETAILED DESCRIPTION

[0020] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0021] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships 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, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0022] In the description of this application, "several" means more than one, "plurality" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0023] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0024] In the description of this application, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0025] Reference Figure 1 、 Figure 5 and Figure 6According to the first embodiment of the present application, a hot press mold comprises: an upper mold plate (not shown), a lower mold plate 100, a drive mechanism (not shown), an air suction mechanism (not shown), and a heating mechanism (not shown). The upper mold plate is provided with a punch; the mold plate 100 is provided with a cavity 110; the lower mold plate 100 is provided with a first air suction channel 120 and a second air suction channel 130. The first air suction channel 120 is connected to the mold cavity 110 at one end and to the second air suction channel 130 at the other end. The second air suction channel 130 runs through opposite sides of the lower mold plate 100 and forms an air suction port 140 on the lower mold plate 100. At least one air suction port 140 is used to connect to the air suction mechanism or to pass through a cleaning rod. The drive mechanism drives and connects the upper mold plate or the lower mold plate 100 to close the upper mold plate and insert the punch into the mold cavity; the air suction mechanism is connected to the air suction port 140; and the heating mechanism is provided on the side of the lower mold plate 100 facing away from the upper mold plate.

[0026] It can be understood that the hot pressing mold of the present application is used to hot press wet embryos to form dry embryos. The wet embryos are placed in the cavity 110 of the lower template 100. The driving mechanism drives the upper template and the lower template 100 to approach each other so that the upper template and the lower template 100 are molded together. At the same time, the punch of the upper template can be inserted into the cavity 110 of the lower template 100. The punch cooperates with the cavity 110 to press the wet embryo to squeeze out the moisture in the wet embryo. In addition, the suction mechanism sucks air into the cavity 110 through the second suction channel 130 and the first suction channel 120. The water in the wet embryo in the cavity 110 will flow away through the first suction channel 120 and the second suction channel 130. At the same time, the heating mechanism can heat the lower template 100 to heat and dry the wet embryo. Thus, the suction mechanism and the heating mechanism cooperate with the upper template and the lower template 100 to achieve hot pressing of the wet embryo. It should be understood that the wet embryo is formed by pulp, and paper scraps will be mixed in the water, and the paper scraps will adhere to the second air intake channel 130. Since the heating mechanism heats the lower template 100 to dry the wet embryo, the paper scraps in the second air intake channel 130 will heat up and carbonize. Over time, carbon deposits will form in the second air intake channel 130, and it is necessary to regularly clean the carbon deposits in the second air intake channel 130. During the cleaning process, it is only necessary to disconnect the air intake port 140 from the air intake mechanism, and then insert the cleaning rod into the second air intake channel 130 through the air intake port 140 on one side, scrape off the carbon deposits in the second air intake channel 130, and push it out from the air intake port 140 on the other side, so that the carbon deposits in the second air intake channel 130 can be cleaned without removing the lower template 100, which is convenient for cleaning.

[0027] It can also be understood that the heating mechanism is in close contact with the side of the lower template 100 away from the cavity 110 so as to heat the lower template 100, thereby drying the wet embryo, and cooperating with the suction mechanism to form the wet embryo into a dry embryo.

[0028] Specifically, the heating mechanism includes a heating plate and multiple heating tubes. The multiple heating tubes are installed in the heating plate. One side of the heating plate is in close contact with the side of the lower template 100 facing away from the cavity 110. Since the second air intake channel 130 is formed inside the lower template 100, the side of the lower template 100 facing away from the cavity 110 can be set as a plane, thereby increasing the contact area between the lower template 100 and the heating plate, thereby improving the heat transfer efficiency between the heating plate and the lower template 100 and reducing heat energy loss.

[0029] Specifically, in some embodiments, during the suction process, the suction mechanism can be in communication with the suction ports 140 on opposite sides of the lower mold plate 100. In other embodiments, during the suction process, the suction mechanism can be in communication with the suction ports 140 on one side of the lower mold plate 100, while the suction ports 140 on the other side are blocked by a plug. During the carbon deposit cleaning process, the suction mechanism and the suction ports 140 are disconnected, and the plug is removed from the suction ports 140.

[0030] Specifically, the diameter of the second air intake channel 130 is larger than that of the first air intake channel 120. The diameter of the first air intake channel 120 is smaller, and the diameter of the second air intake channel 130 is larger. The flow rate in the first air intake channel 120 is larger, and paper scraps are not easy to adhere to the first air intake channel 120. It should be understood that if paper scraps adhere to the first air intake channel 120, it is easy to cause the first air intake channel 120 to be blocked. The air pressure in the blocked first air intake channel 120 becomes larger, and the air flow and water flow can easily take away the paper scraps in the first air intake channel 120. Therefore, it is generally not easy for paper scraps and carbon deposits to remain in the first air intake channel 120, and there is no need to frequently clean the carbon deposits in the first air intake channel 120.

[0031] Reference Figure 1 According to some embodiments of the present application, the hot pressing mold further includes an air receiving component 200, which is detachably connected to the lower template 100, and the air receiving component 200 is connected to the air suction port 140, and the air receiving component 200 is used to connect to the air suction mechanism.

[0032] It is understood that by adding the air connection assembly 200 to connect the air intake port 140 on the lower template 100 with the air intake mechanism, the connection between the air intake port 140 and the air intake mechanism can be facilitated. The air connection assembly 200 is detachably connected to the lower template 100, which can facilitate the assembly and disassembly of the air connection assembly 200 and the lower template 100. Specifically, the air connection assembly 200 is also detachably connected to the air intake mechanism, which can facilitate the disconnection between the air intake port 140 and the air intake mechanism.

[0033] Reference Figure 1According to some embodiments of the present application, a plurality of second air suction channels 130 are provided, and a plurality of second air suction channels 130 form a plurality of air suction ports 140 on the same side of the lower template 100, and the air receiving assembly 200 is covered on one side of the lower template 100 to communicate with the plurality of air suction ports 140.

[0034] It can be understood that in order to be able to hot-press multiple wet embryos at one time, multiple cavities 110 are provided, and multiple second air suction channels 130 are also provided. Each cavity 110 is connected to a second air suction channel 130, and the second air suction channel 130 extends along the first direction. Multiple second air suction channels 130 are distributed along the second direction, so that multiple second air suction channels 130 can form multiple air suction ports 140 on both sides of the lower template 100 in the first direction. The air receiving component 200 is covered on the side of the lower template 100 so that the air receiving component 200 can be connected to multiple air suction ports 140 at the same time, and multiple cavities 110 are connected through an air suction mechanism to make the adsorption force in each cavity 110 uniform. Specifically, the first direction intersects with the second direction, and further, the first direction is perpendicular to the second direction.

[0035] Of course, in other embodiments, one cavity 110 may also be connected to multiple second air suction channels 130 to disperse moisture and paper scraps through the multiple second air suction channels 130 to prevent carbon deposits from clogging up in one second air suction channel 130 .

[0036] Reference Figure 3 and Figure 5 According to some embodiments of the present application, the air receiving assembly 200 includes a shielding plate 210 and a connecting frame 220. The connecting frame 220 is connected to the lower template 100. An opening 221 is formed at the end of the connecting frame 220 facing away from the lower template 100. The opening 221 is opposite to the air intake port 140. The shielding plate 210 is movably connected to the connecting frame 220 to shield or open the opening 221. An air receiving cavity 240 is defined between the connecting frame 220 and the shielding plate 210. The air receiving cavity 240 connects the air intake port 140, the opening 221 and the air intake mechanism.

[0037] It can be understood that the cross-section after the connection of the connecting frame 220 and the shielding plate 210 is generally in a "C" shape, and an air connection cavity 240 is defined between the connecting frame 220 and the shielding plate 210. During the air suction process, the shielding plate 210 shields the opening 221, and the air suction mechanism can communicate with the air suction port 140 through the air connection cavity 240 to achieve the effect of water absorption. During the cleaning process, the connection state between the air suction mechanism and the air connection component 200 can be released, and then the shielding plate 210 can be moved to open the opening 221. The opening 221 faces the air suction port 140, and the relative direction between the opening 221 and the air suction port 140 is consistent with the extension direction of the second air suction channel 130. That is, one end of the connecting frame 220 in the first direction is connected to the lower template 100, and the other end of the connecting frame 220 in the first direction forms the opening 221. Thus, the cleaning rod can penetrate into the second air suction channel 130 through the opening 221 and the air suction port 140 to clean the second air suction channel 130. In summary, through the cooperation of the shielding plate 210 and the connecting frame 220, the opening 221 can be shielded or opened to facilitate air suction from the cavity 110 or cleaning of the second air suction channel 130.

[0038] Specifically, an air connection head 230 is provided on the connecting frame 220, and the air connection head 230 is connected to the air suction mechanism through a pipeline. Thus, during the cleaning process, only the adsorption action of the air suction mechanism needs to be cancelled to disconnect the connection between the air suction mechanism and the air suction port 140, and then by opening the opening 221, the cleaning rod can pass through the opening 221 and the air suction port 140 to clean the second air suction channel 130, without detaching the air suction mechanism from the air connection component 200, and only by moving or detaching the shielding plate 210, which is convenient for operation.

[0039] Refer to Figure 3 According to some embodiments of the present application, the air connection component 200 further includes a snap structure 250, and the connecting frame 220 and the shielding plate 210 are detachably connected through the snap structure 250.

[0040] It can be understood that the connecting frame 220 is detachably connected to the shielding plate 210 through the snap structure 250, and during the cleaning process, the shielding plate 210 can be quickly detached through the snap structure 250 to open the opening 221.

[0041] Of course, in some other embodiments, the shielding plate 210 can also be hinged to the connecting frame 220.

[0042] Refer to Figure 1 According to some embodiments of the present application, two air connection components 200 are provided, and the two air connection components 200 are connected to opposite sides of the lower template 100.

[0043] It can be understood that the second air suction channel 130 is formed with air suction ports 140 on both sides in the first direction of the lower template 100, and air connecting components 200 are provided on both opposite sides in the first direction of the lower template 100, so that the air suction ports 140 on both sides can be connected to the air suction mechanism, thereby improving the suction force on the wet embryo in the cavity 110, and avoiding the single-sided air suction port 140 being connected to the air suction mechanism, resulting in a large suction force in the cavity 110 on the side of the air suction port 140 connected to the suction mechanism, and a small suction force in the cavity 110 on the side of the air suction port 140 far from the suction mechanism, resulting in uneven suction force, and thus the air suction ports 140 on both sides are connected by two air connecting components 200 to ensure that the suction force in multiple cavities 110 is uniform as much as possible.

[0044] Reference Figure 5 and Figure 6 According to some embodiments of the present application, the diameter of the first air intake channel 120 is smaller than the diameter of the second air intake channel 130 .

[0045] It is understood that the reduced diameter of the first air intake passage 120 can reduce the risk of paper scraps remaining in the first air intake passage 120, thereby reducing the possibility of carbon deposits forming in the first air intake passage 120. Furthermore, the larger second air intake passage 130 can facilitate the entry of the cleaning rod and reduce the impact of carbon deposits on the air flow in the second air intake passage 130.

[0046] At the same time, refer to Figure 2 A plurality of first air suction channels 120 are provided, and a cavity 110 is connected by providing a plurality of first air suction channels 120, and a plurality of first air suction channels 120 have adsorption ports 150 opened on the inner wall of the cavity 110. The adsorption ports 150 formed on the inner wall of the cavity 110 are evenly distributed, so that the wet embryo can be dehydrated evenly.

[0047] Reference Figure 6 According to some embodiments of the present application, the second air suction channel 130 is located on one side of the cavity 110, and the first air suction channel 120 extends in a straight direction.

[0048] It can be understood that the second air intake channel 130 extends along the first direction, the second air intake channel 130 is located below the cavity 110, and the first air intake channel 120 extends along a straight direction. During the production process, the second air intake channel 130 can be opened first, and then a hole can be drilled from the cavity 110 toward the second air intake channel 130 along a straight direction to form a connection between the cavity 110 and the second air intake channel 130, thereby facilitating the production process, and the first air intake channel 120 extends in a straight line, which can facilitate the flow of air in the first air intake channel 120 during the intake process. Moreover, since the diameter of the second air intake channel 130 is larger and the diameter of the first air intake channel 120 is smaller, by allowing part of the first air intake channel 120 to be in a straight line and inclined relative to the vertical plane, the probability of the first air intake channel 120 being connected with the second air intake channel 130 during the molding process can be increased, and the first air intake channel 120 being unable to be normally connected with the second air intake channel 130 can be reduced. In addition, it can also help to make the first air intake channels 120 cross each other, so that when one of the first air intake channels 120 is connected to the second air intake channel 130, multiple first air intake channels 120 can be connected with the second air intake channel 130.

[0049] Reference Figure 5 and Figure 6 According to some embodiments of the present application, each cavity 110 is connected to a second air suction channel 130 through a plurality of first air suction channels 120 .

[0050] It is understood that there are multiple mold cavities 110, each connected to the second air suction channel 130 via multiple first air suction channels 120. Each first air suction channel 120 has a suction port 150 defined on the inner wall of the mold cavity 110. Multiple first air suction channels 120 form multiple suction ports 150 on the inner wall of the mold cavity 110, and the suction ports 150 are evenly distributed to facilitate moisture absorption from the wet blank. Furthermore, the first air suction channels 120 are relatively small, and by providing multiple first air suction channels 120, water absorption can be ensured for each mold cavity 110.

[0051] Specifically, refer to Figures 4 to 6 The mold cavities 110 are provided in multiple groups, and the multiple groups of mold cavities 110 are distributed along the second direction. A plurality of second air suction channels 130 are also provided, and the plurality of second air suction channels 130 are distributed along the second direction. Each group of mold cavities 110 is connected to a corresponding second air suction channel 130. Each group of mold cavities 110 includes multiple mold cavities 110 distributed along the first direction. The second air suction channels 130 all extend along the first direction. The multiple mold cavities 110 in the same group are all connected to the same second air suction channel 130.

[0052] A method for cleaning a hot pressing mold according to a second embodiment of the present application is used to clean the hot pressing mold of the first embodiment, comprising the following steps: Release the connection between the suction mechanism and the suction port 140 on the lower template 100; The cleaning rod passes through the air intake port 140 on one side of the template 100 and enters the second air intake channel 130; The cleaning rod pushes the carbon deposits in the second suction channel 130 out of the suction port 140 on the other side of the mold plate 100 .

[0053] It can be understood that during the cleaning process, there is no need to remove the lower template 100 and the heating mechanism. The cleaning rod can be directly inserted through the air intake port 140 on one side of the template 100. The cleaning rod cleans the carbon deposits in the second air intake channel 130 and pushes the carbon deposits out from the air intake port 140 on the other side of the template 100 to complete the cleaning of the carbon deposits in the second air intake channel 130. The cleaning method is convenient and reduces the process of removing the lower template 100 and the heating mechanism.

[0054] Specifically, the hot pressing mold of the first embodiment of the present application also includes an air receiving component 200, which includes a shielding plate 210 and a connecting frame 220. The connecting frame 220 is connected to the lower template 100, and an opening 221 is formed at the end of the connecting frame 220 facing away from the lower template 100. The opening 221 is opposite to the air intake port 140. The shielding plate 210 is movably connected to the connecting frame 220 to shield or open the opening 221; an air receiving cavity 240 is defined between the connecting frame 220 and the shielding plate 210, and the air receiving cavity 240 connects the air intake port 140, the opening 221 and the air intake mechanism.

[0055] Therefore, the cleaning method of the hot pressing mold of the second embodiment of the present application further includes: The shielding plate 210 is moved to open the opening 221 , and the cleaning rod passes through the opening 221 and the air inlet 140 in sequence to penetrate into the second air inlet channel 130 .

[0056] Specifically, an air connection head 230 is provided on the connecting frame 220, and the air connection head 230 is connected to the suction mechanism through a pipe. Therefore, during the cleaning process, it is only necessary to cancel the adsorption action of the suction mechanism to disconnect the connection between the suction mechanism and the suction port 140, and then by opening the opening 221, the cleaning rod passes through the opening 221 and the suction port 140 to clean the second suction channel 130, without having to disassemble the suction mechanism from the air connection assembly 200. It is only necessary to move or disassemble the shielding plate 210, which is convenient for operation to improve cleaning efficiency.

[0057] Therefore, in the method for cleaning the hot pressing mold of the second embodiment of the present application, the step of “releasing the connection between the suction mechanism and the suction port 140 on the lower mold plate 100” includes the following steps: Close the suction mechanism.

[0058] What should be connected is the step of releasing the connection between the suction mechanism and the suction port 140 on the lower template 100. Since the suction mechanism is connected to the connecting frame 220 through the air connecting head 230, the connecting frame 220 does not move during the cleaning process. Therefore, it is only necessary to close the suction mechanism, disassemble the suction mechanism and the air connecting component 200 in an irregular manner, and at the same time disassemble the shielding plate 210 to open the opening 221 so that the suction port 140 can leak out, which is convenient for the insertion of the cleaning rod. Therefore, the process of disassembling the suction mechanism and the air connecting component 200 can be reduced, the cleaning steps can be further simplified, and the cleaning efficiency can be improved.

[0059] The embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the above embodiments. Various modifications can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features of the embodiments can be combined with each other unless there is a conflict.

Claims

1. Hot pressing mold, characterized in that, include: The upper template is provided with a convex mold; A lower template is provided with a mold cavity, and a first air suction channel and a second air suction channel are opened in the lower template, one end of the first air suction channel is connected to the mold cavity, and the other end is connected to the second air suction channel, the second air suction channel runs through opposite sides of the lower template and forms an air suction port on the lower template, at least one of the air suction ports is used to connect to the suction mechanism or penetrate the cleaning rod; A driving mechanism, drivingly connected to the upper mold plate or the lower mold plate, for closing the upper mold plate and the lower mold plate, and inserting the punch into the mold cavity; an air suction mechanism, connected to the air suction port; A heating mechanism is provided on a side of the lower template facing away from the upper template.

2. The hot pressing mold according to claim 1, characterized in that It also includes an air receiving assembly, which is detachably connected to the lower template, the air receiving assembly is connected to the air suction port, and the air receiving assembly is used to connect to the air suction mechanism.

3. The hot pressing mold according to claim 2, characterized in that There are multiple second air suction channels, and multiple second air suction channels form multiple air suction ports on the same side of the lower template. The air receiving component cover is provided on one side of the lower template to communicate with the multiple air suction ports.

4. The hot pressing mold according to claim 2, characterized in that The air receiving assembly includes a shielding plate and a connecting frame, the connecting frame is connected to the lower template, an opening is formed at the end of the connecting frame facing away from the lower template, the opening is opposite to the air intake port, the shielding plate is movably connected to the connecting frame to shield or open the opening; an air receiving cavity is defined between the connecting frame and the shielding plate, the air receiving cavity connects the air intake port, the opening and the air intake mechanism.

5. The hot pressing mold according to claim 4, characterized in that The air connection assembly further comprises a buckle structure, and the connecting frame and the shielding plate are detachably connected via the buckle structure.

6. The hot pressing mold according to claim 2, characterized in that Two air connection components are provided, and the two air connection components are connected to two opposite sides of the lower template.

7. The hot pressing mold according to claim 1, characterized in that A diameter of the first air intake passage is smaller than a diameter of the second air intake passage.

8. The hot pressing mold according to claim 1, characterized in that The second air suction channel is located on one side of the cavity, and the first air suction channel extends in a straight line.

9. The hot pressing mold according to claim 1, characterized in that Each of the mold cavities is connected to a second air suction channel through a plurality of the first air suction channels.

10. A method for cleaning a hot pressing mold, characterized in that: The method for cleaning the hot pressing mold according to any one of claims 1 to 9 comprises the following steps: Release the connection between the suction mechanism and the suction port on the lower template; The cleaning rod passes through the suction port on one side of the template and enters the second suction channel; The cleaning rod pushes the carbon deposits in the second suction channel out from the suction port on the other side of the template.

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