Paper pulp molded product production line

Abstract

The invention discloses a paper pulp molded product production line. The paper pulp molded product production line comprises a forming device, a drying device and a cutting device. The drying device comprises a second upper die, a second lower die, a second lifting driving assembly, a heating assembly and a second vacuumizing assembly. The second vacuumizing assembly sucks air into the second cavity through the second channel structure, so that water vapor flows away from the second channel structure, the possibility that fiber chippings carried by the water vapor dispersed in the air are attached to a dry blank is reduced, and the product quality is improved; and the possibility of carbon deposition caused by fiber scraps attached to the second upper mold and the second lower mold is reduced. Meanwhile, the sealing performance of the second cavity is improved by arranging the sealing structure, and the pressure of water vapor passing through the second channel structure can be improved, so that fibers attached to the interior of the second channel structure are carried away, the cleanliness of the second channel structure is kept, and the possibility that carbon deposition is generated in the second channel structure is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of pulp molding product production equipment, and in particular to a pulp molding product production line. Background Art

[0002] During the production process of pulp molding, the wet embryo needs to be dried by a drying device to form a wet embryo. In the related art, the drying device includes an upper mold and a lower mold. A heating component is arranged in the upper mold or the lower mold. When the upper mold and the lower mold are closed, the wet embryo between the upper mold and the lower mold can be heated and dried to form a dry embryo. During the drying process, a large amount of water vapor will overflow. The water vapor will carry fiber debris. After the upper mold and the lower mold are opened to form a dry embryo, the fiber debris may adhere to the dry embryo and affect the product quality. In addition, the fiber debris will adhere to the upper mold or the lower mold. After the upper mold and the lower mold are closed for multiple times to heat the wet embryo, the fibers attached to the upper mold and the lower mold will be carbonized to form carbon deposits. 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 pulp molding product production line that can reduce the overflow of water vapor, improve product quality, and reduce the generation of carbon deposits.

[0004] A pulp molding product production line according to an embodiment of the present application includes: a molding device, a drying device and a cutting device.

[0005] The forming device comprises a pulp pool, a first upper mold, a first lower mold and a first lifting drive assembly, wherein the first lower mold is arranged in the pulp pool and is used to absorb the pulp in the pulp pool to form a wet embryo, the first upper mold is located above the first lower mold, the first lifting drive assembly is driven and connected to the first upper mold and is used to drive the first upper mold to rise and fall, and the first upper mold can take and place the wet embryo; The drying device comprises a second upper mold, a second lower mold, a second lifting drive assembly, a heating assembly and a second vacuum assembly, wherein the heating assembly is arranged in the second upper mold and / or the second lower mold, the second lifting drive assembly is drivingly connected to the second upper mold, and is used to drive the second upper mold to lift and lower, the second upper mold and the second lower mold can be molded together to dry the wet embryo to form a dry embryo, the second upper mold and the second lower mold are molded together to form a second cavity for accommodating the wet embryo, the second upper mold and / or the second lower mold are provided with a sealing structure, and the sealing structure surrounds the second cavity; the second upper mold or the second lower mold is provided with a second channel structure, one end of the second channel structure is connected to the second cavity, and the other end is connected to the second vacuum assembly; The cutting device includes a third upper mold, a third lower mold and a third lifting drive assembly, wherein the third lifting drive assembly is driven and connected to the third upper mold, and the third lower mold is used to place the dry embryo. The third lifting drive assembly is driven and connected to the third upper mold and is used to drive the third upper mold to lift and lower, and the third upper mold can cooperate with the third lower mold to cut the dry embryo.

[0006] The pulp molding product production line according to the embodiment of the present application has at least the following beneficial effects: the first upper mold and the first lower mold can cooperate to form a wet embryo. Subsequently, the wet embryo is transferred to the second lower mold, the second lifting drive assembly drives the second upper mold to descend, the second upper mold and the second lower mold are molded together, so that the wet embryo is located in the second cavity formed between the second upper mold and the second lower mold, a heating assembly is arranged in the second upper mold or the second lower mold, after the second upper mold and the second lower mold are molded together, the heating assembly can heat and dry the wet embryo in the second cavity, so that the wet embryo forms a dry embryo, wherein a large amount of water vapor is generated during the drying process of the wet embryo, the second vacuum assembly sucks air into the second cavity through the second channel structure, so that the water vapor flows away from the second channel structure, reducing the possibility of water vapor overflowing, thereby reducing the possibility of fiber debris carried by water vapor diffused in the air adhering to the dry embryo, improving product quality, and reducing the possibility of fiber debris carried by water vapor adhering to the second upper mold and the second lower mold, and reducing the possibility of carbon deposits forming on the outer sides of the second upper mold and the second lower mold. In addition, since the sealing structure surrounds the second cavity, the sealing performance of the second cavity can be improved, further reducing the possibility of water vapor overflowing, and at the same time, the pressure of water vapor passing through the second channel structure can be increased to carry away the fibers attached to the second channel structure, maintain the cleanliness of the second channel structure, and reduce the possibility of carbon deposits in the second channel structure. The third upper mold and the third lower mold are combined to cut the dry embryo.

[0007] According to some embodiments of the present application, the drying device further includes a second translation drive assembly, which is drive-connected to the second lower mold and is used to drive the second lower mold to move below the second upper mold or the first upper mold.

[0008] According to some embodiments of the present application, a plurality of second cavities are formed between the second upper mold and the second lower mold, each of the second cavities corresponds to at least one second channel structure, and the sealing structure surrounds at least two of the second cavities.

[0009] According to some embodiments of the present application, the first upper mold can be combined with the first lower mold to form a first cavity for accommodating a wet embryo between the first upper mold and the first lower mold, and the first upper mold and the first lower mold can extrude the wet embryo in the first cavity.

[0010] According to some embodiments of the present application, the molding device further includes a first vacuum pumping component, the first lower mold is provided with a first channel structure, one end of the first channel structure is connected to the first cavity, and the other end is connected to the first vacuum pumping component.

[0011] According to some embodiments of the present application, the first upper mold is provided with a first punch, the first upper mold is formed with a boss surrounding the first punch, and the first upper mold forms a groove between the first punch and the boss; the first lower mold is provided with a first die, the first lower mold is formed with a protrusion surrounding the first die; wherein, the first cavity includes a first part and a second part, when the first upper mold and the first lower mold are closed, the first punch is inserted into the first die, and the first part is formed between the first punch and the first die, the protrusion is inserted into the groove, and the second part is formed between the protrusion and the groove, the first part and the second part are connected, and the boss abuts against the end face of the first lower mold close to the first upper mold.

[0012] According to some embodiments of the present application, an end of the first portion close to the second portion forms a wave segment.

[0013] According to some embodiments of the present application, the third upper mold includes a third punch; the third lower mold includes a third die, a top plate and an elastic member, the third die is provided with a third cavity opposite to the third punch, the top plate is movably disposed in the third cavity and is used to carry the dry embryo, the elastic member is disposed in the third cavity and abuts against the top plate, the elastic member applies an elastic force toward the third punch to the top plate, and the third die is provided with a limiting portion, the limiting portion abuts against the top plate to limit the top plate from leaving the third cavity.

[0014] According to some embodiments of the present application, the third punch and the third die are both provided with a trimming structure, and a plane perpendicular to the direction of opening and closing the mold is defined as a projection plane. The projection of the trimming structure on the projection plane surrounds the projection of the third cavity on the projection plane, and the trimming structure is used to cut off the dry embryo along a path surrounding the third cavity.

[0015] According to some embodiments of the present application, the third die includes a lower mold plate and a limiting plate, the lower mold plate is provided with the third cavity, the limiting plate is arranged on the top side of the lower mold plate and at least partially extends to the top side of the third cavity to form the limiting portion.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 a pulp molding product production line according to an embodiment of the present application; Figure 2 for Figure 1 A cross-sectional view of a first upper mold and a second upper mold of a molding device; Figure 3 for Figure 2 The enlarged view of point A in the middle; Figure 4 for Figure 1 Another cross-sectional view of the first upper mold and the second upper mold of the intermediate molding device; Figure 5 for Figure 2 A schematic diagram of the structure of the first lower die; Figure 6 for Figure 5 The enlarged view of point B in the middle; Figure 7 for Figure 2 A schematic diagram of the structure of the first upper die; Figure 8 for Figure 7 Enlarged view of point C in the middle; Fig. 9 for Figure 1 A cross-sectional view of a second upper mold and a second lower mold of a drying device; Fig.10 for Fig. 9 An exploded view of the second upper die and the second lower die; Fig.11 for Figure 1 A cross-sectional view of a third upper die and a third lower die of the middle cutting device; Fig.12 for Fig.11 The enlarged view of point D in the middle; Fig.13 for Fig.11 Exploded view of the third lower die; Fig.14 for Fig.11 Exploded view of the third upper mold and the dry embryo.

[0018] Reference numerals: Forming device 100; A first upper mold 110, a first punch 111, a boss 112, a groove 113; a first adsorption channel 114; A first lower die 120, a first concave die 121, a protrusion 122, and a first channel structure 123; A first cavity 130, a first portion 131, a wave section 1311, and a second portion 132; Slurry pool 140, slurry supply barrel 150, first lifting drive assembly 160; Drying device 200; A second upper mold 210 and a second adsorption channel 211; A second lower mold 220 and a second channel structure 221; Second cavity 230; The second lifting drive assembly 240, A second translation drive assembly 250 and a sealing structure 260; Cutting device 300; A third upper mold 310; an upper mold plate 311; a third male mold 312; a third adsorption channel 3121; The third lower mold 320; the third concave mold 321; the third cavity 322; the top plate 3221; the elastic member 3222; the mounting hole 3223; the limiting portion 3224; the lower mold plate 323; the limiting plate 324; the bottom plate 325; the middle plate 326; the buffer member 327; the trimming structure 331; the dry embryo 341; and the contact surface 342.

[0019] A third lifting drive assembly 330; Reclaimer robot 400. DETAILED DESCRIPTION

[0020] The embodiments of the present application are described in detail below, and 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 cannot be understood as limiting the present application.

[0021] In the description of the present application, it should be understood that descriptions involving orientation, 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, and are only for the convenience of describing the present 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, and therefore should not be understood as a limitation on the present application.

[0022] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0023] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. 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 the present application, the description with 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 the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0025] Reference Figure 1 According to an embodiment of the present application, a pulp molding product production line includes: a molding device 100, a drying device 200 and a cutting device 300.

[0026] Reference Figure 1 The forming device 100 includes a pulp pool 140, a first upper mold 110, a first lower mold 120 and a first lifting drive assembly 160. The first lower mold 120 is disposed in the pulp pool 140 and is used to absorb the pulp in the pulp pool 140 to form a wet embryo. The first upper mold 110 is located above the first lower mold 120. The first lifting drive assembly 160 is driven and connected to the first upper mold 110 and is used to drive the first upper mold 110 to rise and fall. The first upper mold 110 can take and place the wet embryo. Reference Figure 1 , Fig. 9 and Fig.10 The drying device 200 includes a second upper mold 210, a second lower mold 220, a second lifting drive assembly 240, a heating assembly (not shown in the figure) and a second vacuum assembly (not shown in the figure), the heating assembly is arranged in the second upper mold 210 and / or the second lower mold 220, the second lifting drive assembly 240 is driven and connected to the second upper mold 210, and is used to drive the second upper mold 210 to rise and fall, the second upper mold 210 and the second lower mold 220 can be molded together to dry the wet embryo to form a dry embryo 341, the second upper mold 210 and the second lower mold 220 are molded together to form a second cavity 230 for accommodating the wet embryo, the second upper mold 210 and / or the second lower mold 220 are provided with a sealing structure 260, and the sealing structure 260 surrounds the second cavity 230; the second upper mold 210 or the second lower mold 220 is provided with a second channel structure 221, one end of the second channel structure 221 is connected to the second cavity 230, and the other end is connected to the second vacuum assembly; Reference Figure 1The cutting device 300 includes a third upper mold 310, a third lower mold 320 and a third lifting drive assembly 330. The third lifting drive assembly 330 is driven and connected to the third upper mold 310. The third lower mold 320 is used to place the dry embryo 341. The third lifting drive assembly 330 is driven and connected to the third upper mold 310 and is used to drive the third upper mold 310 to rise and fall. The third upper mold 310 can cooperate with the third lower mold 320 to cut the dry embryo 341.

[0027] It can be understood that the first lower mold 120 is arranged in the pulp pool 140, can absorb the pulp in the pulp pool 140 and form a wet embryo, the first lifting drive assembly 160 drives the first upper mold 110 to descend, and the first upper mold 110 takes away the wet embryo at the first lower mold 120.

[0028] Subsequently, the wet embryo is transferred to the second lower mold 220, and the second lifting drive assembly 240 drives the second upper mold 210 to descend, and the second upper mold 210 and the second lower mold 220 are molded together so that the wet embryo is located in the second cavity 230 formed between the second upper mold 210 and the second lower mold 220. A heating assembly is provided in the second upper mold 210 and / or the second lower mold 220. After the second upper mold 210 and the second lower mold 220 are molded together, the heating assembly can heat and dry the wet embryo in the second cavity 230 to form a dry embryo 341. During the drying process, a large amount of water vapor is generated. The second vacuum assembly draws air into the second cavity 230 through the second channel structure 221 to allow the water vapor to flow away from the second channel structure 221, thereby reducing the possibility of water vapor overflowing, thereby reducing the possibility of fiber debris carried by water vapor dispersed in the air adhering to the dry blank 341, improving product quality, and reducing the possibility of fiber debris carried by water vapor adhering to the second upper mold 210 and the second lower mold 220, and reducing the possibility of carbon deposits forming on the outer sides of the second upper mold 210 and the second lower mold 220. In addition, since the sealing structure 260 surrounds the second cavity 230, the sealing performance of the second cavity 230 can be improved, further reducing the possibility of water vapor overflowing. At the same time, the pressure of water vapor passing through the second channel structure 221 can be increased to carry away the fibers attached to the second channel structure 221, maintain the cleanliness of the second channel structure 221, and reduce the possibility of carbon deposits in the second channel structure 221.

[0029] After the dry embryo 341 is formed, the dry embryo 341 is transferred to the cutting device 300 , and the third lifting drive assembly 330 drives the third upper mold 310 and the third lower mold 320 to close the mold to cut the dry embryo 341 and cut off the waste part at the edge of the dry embryo 341 .

[0030] Specifically, the heating component is a heating tube, which is inserted into the first upper mold 110 and / or the first lower mold 120 .

[0031] Specifically, the sealing structure 260 is disposed on the first lower mold 120 , and the sealing structure 260 is a sealing ring.

[0032] Regarding the method of transferring the wet embryo from the first upper mold 110 to the first lower mold 120: In this embodiment, refer to Figure 1 The drying device 200 also includes a second translation driving assembly 250 , which is drivingly connected to the second lower mold 220 and is used to drive the second lower mold 220 to move to below the second upper mold 210 or the first upper mold 110 .

[0033] It can be understood that the first lifting drive assembly 160 drives the first upper mold 110 to approach the first lower mold 120, the first upper mold 110 grabs the wet embryo on the first lower mold 120, the first lifting drive assembly 160 drives the first upper mold 110 to rise, the second translation drive assembly 250 drives the second lower mold 220 to move between the first upper mold 110 and the second lower mold 220, the first lifting drive assembly 160 drives the first upper mold 110 to descend, and the first upper mold 110 places the wet embryo on the second lower mold 220. Subsequently, the second translation drive assembly 250 drives the second lower mold 220 to move to the bottom of the second upper mold 210, and the second lifting drive assembly 240 can drive the second upper mold 210 to approach the second lower mold 220 so that the second upper mold 210 and the second lower mold 220 are molded together.

[0034] In other embodiments, the wet blank of the first upper mold 110 may be grasped manually or by a robot and transferred to the second lower mold 220 .

[0035] Reference Fig. 9 and Fig.10 According to some embodiments of the present application, a plurality of second cavities 230 are formed between the second upper mold 210 and the second lower mold 220 , each second cavity 230 corresponds to at least one second channel structure 221 , and the sealing structure 260 surrounds at least two second cavities 230 .

[0036] It can be understood that a plurality of second cavities 230 are provided, and each second cavity 230 can correspond to a wet embryo, so that the second upper mold 210 and the second lower mold 220 can dry a plurality of wet embryos at the same time, and the sealing structure 260 surrounds at least two second cavities 230, which can reduce the use of the sealing structure 260 and allow the second cavities 230 to be connected. When the second channel structure 221 corresponding to a second cavity 230 is blocked, the water vapor generated in the second cavity 230 can also flow away through the second channel structure 221 corresponding to another second cavity 230, thereby reducing the possibility of steam overflowing from the second cavity 230.

[0037] Specifically, refer to Fig. 9The second upper mold 210 is provided with a second adsorption channel 211 connected to a second vacuum assembly (not shown in the figure). After the second upper mold 210 and the second lower mold 220 are opened, the second upper mold 210 can absorb the dry embryo 341. The second lower mold 220 is formed with a second channel structure 221 for drainage. Thus, the dry embryo 341 is retained in the second upper mold 210, which is conducive to keeping the dry embryo 341 dry.

[0038] Reference Figure 2 According to some embodiments of the present application, the first upper mold 110 can be molded with the first lower mold 120, and a first cavity 130 for accommodating a wet embryo is formed between the first upper mold 110 and the first lower mold 120, and the first upper mold 110 and the first lower mold 120 can extrude the wet embryo in the first cavity 130.

[0039] It can be understood that after the first lower mold 120 forms the wet embryo, the first lifting drive assembly 160 drives the first upper mold 110 to descend, the first upper mold 110 and the first lower mold 120 are closed, and the first lifting drive assembly 160 applies a downward pressure to the first upper mold 110, and the first upper mold 110 and the first lower mold 120 cooperate to squeeze the wet embryo in the first cavity 130 to squeeze out the water in the wet embryo and reduce the moisture content of the wet embryo, thereby reducing the heat energy required by the drying device 200 to dry the wet embryo.

[0040] Reference Figure 4 According to some embodiments of the present application, the molding device 100 also includes a first vacuum pumping component (not shown in the figure), and the first lower mold 120 is provided with a first channel structure 123, one end of the first channel structure 123 is connected to the first cavity 130, and the other end is connected to the first vacuum pumping component.

[0041] It can be understood that the first vacuum assembly generates suction force in the first channel structure 123, and when the first lower mold 120 is in the slurry, the water in the slurry can flow away through the first channel structure 123, and the fibers in the slurry adhere to the first lower mold 120 to form a wet embryo. When the first upper mold 110 and the first lower mold 120 are combined to squeeze the wet embryo, the water in the wet embryo can flow away through the first channel structure 123, and the first vacuum assembly can be used to improve the dehydration efficiency of the wet embryo, further reducing the moisture content of the wet embryo.

[0042] It should be noted that in order to prevent the first channel structure 123 from taking away the fibers in the slurry, a filter screen can be laid on the first lower mold 120, and the filter screen can cover the opening formed in the first lower mold 120 by the first channel structure 123 to block the fibers from entering the first channel structure 123. Alternatively, the filter screen can be laid only at the opening formed in the first lower mold 120 by the first channel structure 123. Alternatively, the opening formed in the first lower mold 120 by the first channel structure 123 can be set smaller to prevent fibers from entering the first channel structure 123.

[0043] Reference Figures 2 to 8 According to some embodiments of the present application, the first upper mold 110 is provided with a first convex mold 111, the first upper mold 110 is formed with a boss 112 surrounding the first convex mold 111, and the first upper mold 110 forms a groove 113 between the first convex mold 111 and the boss 112; the first lower mold 120 is provided with a first concave mold 121, and the first lower mold 120 is formed with a protrusion 122 surrounding the first concave mold 121; wherein the first cavity 130 includes a first portion 131 and a second portion When the first upper mold 110 and the first lower mold 120 are closed, the first punch 111 is inserted into the first die 121, and a first part 131 is formed between the first punch 111 and the first die 121, the protrusion 122 is inserted into the groove 113, and a second part 132 is formed between the protrusion 122 and the groove 113, the first part 131 and the second part 132 are connected, and the boss 112 abuts against the end face of the first lower mold 120 close to the first upper mold 110.

[0044] It can be understood that the main part of the wet embryo corresponds to the first part 131, and the edge part of the wet embryo corresponds to the second part 132, wherein the boss 112 abuts against the end face of the first lower mold 120 close to the first upper mold 110, thereby improving the sealing of the first cavity 130, allowing most of the water squeezed out of the wet embryo to be absorbed by the first channel structure 123 at the first lower mold 120, thereby improving the water absorption effect of the first vacuum assembly and further reducing the moisture content of the wet embryo.

[0045] Furthermore, by providing a groove 113 between the first punch 111 and the boss 112 , the second portion 132 formed by the groove 113 and the protrusion 122 can form a bending structure at the edge of the wet embryo, so that water in the wet embryo can be easily sucked away by the first channel structure 123 .

[0046] In some cases, there is a possibility that the fibers at the edge of the wet embryo are squeezed out or carried away by water due to pressure or overflowing water caused by squeezing the first upper mold 110 and the first lower mold 120. By the boss 112 abutting against the end surface of the first lower mold 120 close to the first upper mold 110, the risk of the fibers at the edge of the wet embryo being squeezed out of the second part 132 due to squeezing the first upper mold 110 and the first lower mold 120 can be reduced, and the risk of the fibers at the edge of the wet embryo being squeezed out and carried away by water from the edges of the first upper mold 110 and the first lower mold 120 can be reduced, thereby maintaining the structural integrity of the wet embryo. In addition, by the cooperation of the groove 113 and the protrusion 122, the risk of the edge of the wet embryo being squeezed out of the second part 132 can be further reduced.

[0047] Reference Figure 3 According to some embodiments of the present application, a wave section 1311 is formed at one end of the first portion 131 close to the second portion 132 .

[0048] It can be understood that by forming the wave section 1311 at one end of the first portion 131 close to the second portion 132, water in the wet embryo can be easily sucked away by the first channel structure 123. In addition, in some cases, it can prevent the fibers in the main part of the wet embryo from being squeezed to the second part 132, so as to further reduce the possibility of the fibers in the edge part of the wet embryo being squeezed out.

[0049] Regarding the method of grabbing the wet embryo by the first upper mold 110, refer to Figure 2 The first upper mold 110 is provided with a plurality of first adsorption channels 114 , one end of the first adsorption channel 114 is connected to the first cavity 130 , and the other end is connected to the first suction assembly (not shown in the figure).

[0050] It can be understood that the first adsorption channel 114 is connected to the first cavity 130, and the first vacuum component sucks air to allow the first adsorption channel 114 to generate suction. After the first upper mold 110 and the first lower mold 120 are separated, the extruded wet embryo is adsorbed on the first upper mold 110. After the second lower mold 220 moves to the bottom of the first upper mold 110, the first lifting drive assembly 160 drives the first upper mold 110 close to the second lower mold 220, and the first vacuum component cancels the suction. The wet embryo at the first upper mold 110 falls on the second lower mold 220, completing the transfer of the wet embryo.

[0051] Specifically, each first cavity 130 corresponds to a plurality of first adsorption channels 114, and some of the first adsorption channels 114 are connected to the second part 132, that is, the opening of the first adsorption channel 114 is formed at the position of the first upper mold 110 corresponding to the first part 131 and the second part 132, and the adsorption effect on the wet embryo is improved by the plurality of first adsorption channels 114. It should be noted that the plurality of first adsorption channels 114 are connected to the same first suction component, and the suction force of the plurality of first adsorption channels 114 on the wet embryo is roughly the same, and the structural strength of the edge of the wet embryo is relatively low. In order to reduce the suction force of the first adsorption channel 114 on the edge of the wet embryo to ensure the structural integrity of the wet embryo, the projection of the boss 112 on the horizontal plane and the projection of the opening of the first adsorption channel 114 corresponding to the second part 132 at least partially overlap, and the boss 112 blocks the opening of the first adsorption channel 114 corresponding to the second part 132, so as to reduce the suction force of the first adsorption channel 114 on the edge of the wet embryo, and reduce the risk of structural damage to the edge of the wet embryo due to excessive suction.

[0052] Regarding the way in which the pulp pool 140 cooperates with the first lower mold 120 to form a wet embryo: In this embodiment, refer to Figure 1The forming device 100 further includes a slurry supply barrel 150. The slurry pool 140 has a slurry inlet and a slurry discharge port that can be opened and closed. The slurry supply barrel 150 is connected to the slurry pool 140. The slurry inlet of the slurry pool 140 is connected to the slurry supply barrel 150. In the process of forming the wet embryo, the slurry supply barrel 150 supplies slurry into the slurry pool 140. The first lower mold 120 absorbs the slurry in the slurry pool 140 to form a wet embryo. After the wet embryo is formed, the slurry in the slurry pool 140 is discharged through the slurry discharge port of the slurry pool 140. Subsequently, the first upper mold 110 descends to enter the slurry pool 140 and cooperates with the first lower mold 120 to extrude the wet embryo. When the first upper mold 110 takes away the wet embryo and performs the next wet embryo forming process, the slurry discharge port of the slurry pool 140 is closed, and the slurry supply barrel 150 injects slurry again.

[0053] It is understandable that by supplying slurry to the slurry pool 140 in the above manner, the first lower mold 120 can be fixed in the slurry pool 140, and there is no need to lift the first lower mold 120 away from the slurry pool 140, thereby reducing the production cost of the molding device 100.

[0054] In other embodiments, the first lower mold 120 may be set to be liftable, and the first lower mold 120 may be lifted up to leave the pulp pool 140 and close the mold with the first upper mold 110. It should be understood that if the first lower mold 120 needs to be lifted up, a lifting module needs to be set below the first lower mold 120, which will increase the height of the frame of the molding device 100. Therefore, the second lower mold 220 that needs to be moved between the first upper mold 110 and the first lower mold 120 also needs to be set higher, which affects the stability of the equipment and increases the production cost.

[0055] In order to ensure the clamping pressure of the first upper mold 110 and the first lower mold 120, refer to Figure 1 The first lifting drive assembly 160 includes a hydraulic cylinder, a pneumatic cylinder, a screw lift or a gear rack lift. The first lifting drive assembly 160 is relatively large in size, and in order to ensure the mold clamping accuracy between the first upper mold 110 and the first lower mold 120, the first upper mold 110 can only be lifted and lowered, and will not translate relative to the first lower mold 120.

[0056] Reference Figures 11 to 14 According to some embodiments of the present application, the third upper mold 310 includes a third punch 312; the third lower mold 320 includes a third die 321, a top plate 3221 and an elastic member 3222. The third die 321 is provided with a third cavity 322 opposite to the third punch 312. The top plate 3221 is movably disposed in the third cavity 322 and is used to carry the dry embryo 341. The elastic member 3222 is disposed in the third cavity 322 and abuts against the top plate 3221. The elastic member 3222 applies an elastic force toward the third punch 312 to the top plate 3221. The third die 321 is provided with a limiting portion 3224, and the limiting portion 3224 abuts against the top plate 3221 to limit the top plate 3221 from leaving the third cavity 322.

[0057] Specifically, the elastic member 3222 is a spring, which can be extended and retracted along the mold opening and closing direction. The spring is arranged on the bottom side of the top plate 3221, one end of the spring is connected to the bottom wall of the third cavity 322, and the other end is connected to the bottom surface of the top plate 3221. Four springs are arranged in the third cavity 322, and the four springs are arranged at intervals. The limiter 3224 is located on the side of the top plate 3221 away from the bottom wall of the third cavity 322, and the limiter 3224 is formed with a contact surface 342 perpendicular to the mold opening and closing direction. During the mold closing process, the third punch 312 drives the dry embryo 341 into the third cavity 322, and pushes the top plate 3221 to move along the mold closing direction, so that the top plate 3221 is close to the bottom wall of the third cavity 322. In this process, the spring is compressed and gradually shortened. During the mold opening process, the third punch 312 leaves the third cavity 322, and the spring pushes the top plate 3221 to move along the mold opening direction. The top plate 3221 stops moving after contacting the contact surface 342.

[0058] It can be understood that the provision of four springs is helpful in reducing the risk of deflection of the top plate 3221 during movement. The contact surface 342 of the limiting portion 3224 which is perpendicular to the direction of mold opening and closing can abut against the top plate 3221, and can generate a force along the direction of mold closing on the top plate 3221, thereby limiting the movement distance of the top plate 3221, and further limiting the top plate 3221 from leaving the third cavity 322.

[0059] According to some embodiments of the present application, the third concave mold 321 is provided with a limiting portion 3224. When the elastic member 3222 drives the top plate 3221 to move toward the third punch 312 in the third cavity 322, the limiting portion 3224 can abut against the top plate 3221 to limit the top plate 3221 from leaving the third cavity 322, thereby reducing the risk of the top plate 3221 leaving the third cavity 322 when resetting.

[0060] Specifically, regarding how to transfer the dry embryo 341 to the cutting device 300, refer to Figure 1 , the dry blank 341 at the second upper mold 210 is transferred to the third upper mold 310 by the material taking manipulator 400. It can be understood that the third upper mold 310 includes a third convex mold 312, and the dry blank 341 is transferred to the third convex mold 312. The third convex mold 312 can position the dry blank 341 to ensure the accuracy of the cutting position.

[0061] Reference Figures 11 to 14 According to some embodiments of the present application, the third punch 312 and the third die 321 are both provided with a trimming structure 331, and a plane perpendicular to the mold opening and closing direction is defined as a projection plane. The projection of the trimming structure 331 on the projection plane surrounds the projection of the third cavity 322 on the projection plane. The trimming structure 331 is used to cut off the dry embryo 341 along a path surrounding the third cavity 322.

[0062] It can be understood that the trimming structure 331 on the third die 321 and the trimming structure 331 on the third punch 312 are adapted in shape and size. During the mold closing process, the trimming structure 331 on the third die 321 and the trimming structure 331 on the third punch 312 are close to each other and cooperate to generate a shear force on the portion of the dry embryo 341 located between the trimming structure 331 on the third die 321 and the trimming structure 331 on the third punch 312, thereby cutting off the waste at the edge of the dry embryo 341.

[0063] Reference Figures 11 to 14 According to some embodiments of the present application, the third die 321 includes a lower mold plate 323 and a limiting plate 324, the lower mold plate 323 defines a third cavity 322, the limiting plate 324 is disposed on the top side of the lower mold plate 323, and at least partially extends to the top side of the third cavity 322 to form a limiting portion 3224.

[0064] Specifically, the limiting plate 324 extends to the top side of the third cavity 322 and covers a portion of the opening of the third cavity 322 (not shown in the figure) from the top side of the third cavity 322 , and forms a contact surface 342 perpendicular to the mold opening and closing direction.

[0065] It can be understood that the contact surface 342 perpendicular to the mold opening and closing direction can abut against the top plate 3221. When the contact surface 342 perpendicular to the mold opening and closing direction abuts against the top plate 3221, a force along the mold closing direction can be provided to the top plate 3221, which is beneficial to limit the top plate 3221 from leaving the third cavity 322 from the opening of the third cavity 322, so as to reduce the risk of the top plate 3221 leaving the third cavity 322 when resetting.

[0066] Reference Figures 11 to 14 According to some embodiments of the present application, the limiting portion 3224 is annular in shape corresponding to the opening of the third cavity 322 .

[0067] Specifically, the limiting plate 324 is annular in shape and matches the shape of the opening (not shown) of the third cavity 322 , and the size of the annular hollow portion of the limiting plate 324 is smaller than the size of the opening of the third cavity 322 .

[0068] It can be understood that the size of the annular hollow part of the limiting plate 324 is smaller than the size of the opening of the third cavity 322, so that the limiting plate 324 partially covers the opening of the third cavity 322 and forms an annular limiting portion 3224. The contact surface 342 on the limiting portion 3224 is annular, and the annular contact surface 342 can abut against the top plate 3221, which helps to reduce the risk of the top plate 3221 being deflected when the limiting portion 3224 abuts against the top plate 3221.

[0069] Reference Fig.12 and Fig.13According to some embodiments of the present application, the lower template 323 includes a bottom plate 325 and an intermediate plate 326 , one side of the intermediate plate 326 is connected to the limiting plate 324 , and the other side of the intermediate plate 326 is connected to the bottom plate 325 via a buffer 327 .

[0070] Specifically, the buffer member 327 is a rubber ring, and a rubber ring installation groove (not shown in the figure) is opened on the bottom plate 325, and the rubber ring is installed in the rubber ring installation groove. The rubber ring abuts against the groove wall (not shown in the figure) of the rubber ring mounting groove, and part of the rubber ring extends out of the rubber ring mounting groove from the opening (not shown in the figure) of the rubber ring mounting groove and abuts against the middle plate 326. A pin (not shown) is also provided between the middle plate 326 and the bottom plate 325.

[0071] It is understandable that the middle plate 326 is pushed by the third punch 312 when the mold can be closed, and approaches the bottom plate 325 along the mold closing direction and compresses the buffer 327. The buffer 327 can provide a buffer for the die closing process, which is beneficial to improving the service life of the die. The pin between the middle plate 326 and the bottom plate 325 can limit the movement of the middle plate 326 in directions other than the mold opening and closing direction.

[0072] Reference Fig.11 and Fig.12 According to some embodiments of the present application, the third upper mold 310 includes an upper mold plate 311 , and the third male mold 312 is detachably mounted on the upper mold plate 311 .

[0073] Specifically, pin holes (not shown in the figure) are provided on the upper mold plate 311 and the third punch 312, and the upper mold plate 311 and the third punch 312 are connected by pins (not shown in the figure). It can be understood that the upper mold plate 311 and the third punch 312 are connected by pins, so that the third punch 312 can be removed from the upper mold plate 311. The third punch 312 may be worn during use, and the third punch 312 is set in a detachable form so that the third punch 312 can be replaced, which is conducive to reducing the maintenance cost of the die.

[0074] Specifically, refer to Fig.12 The third upper mold 310 is provided with a third adsorption channel 3121 connected to the third vacuum assembly. After the third upper mold 310 and the third lower mold 320 are opened, the third upper mold 310 can absorb the dry embryo 341 to allow the cut waste to remain in the third lower mold 320, thereby achieving waste separation.

[0075] Reference Fig.12 and Fig.13 According to some embodiments of the present application, a mounting hole 3223 is defined in the third cavity 322 , and the elastic member 3222 is installed in the mounting hole 3223 .

[0076] Specifically, the mounting hole 3223 is disposed on the bottom wall of the third cavity 322 (not shown in the figure), the axial direction of the mounting hole 3223 is parallel to the mold opening and closing direction, the elastic member 3222 is a spring, and the radius of the mounting hole 3223 is adapted to the spring.

[0077] It is understandable that the mounting hole 3223 can facilitate the installation of the elastic member 3222 and also help reduce the risk of the elastic member 3222 being deflected.

[0078] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of 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 in the embodiments can be combined with each other without conflict.

Claims

1. Pulp molding product production line, characterized in that: include: The forming device comprises a pulp pool, a first upper mold, a first lower mold and a first lifting drive assembly, wherein the first lower mold is arranged in the pulp pool and is used to absorb the pulp in the pulp pool to form a wet embryo, the first upper mold is located above the first lower mold, the first lifting drive assembly is driven and connected to the first upper mold and is used to drive the first upper mold to rise and fall, and the first upper mold can take and place the wet embryo; The drying device comprises a second upper mold, a second lower mold, a second lifting drive assembly, a heating assembly and a second vacuum assembly, wherein the heating assembly is arranged in the second upper mold and / or the second lower mold, the second lifting drive assembly is drivingly connected to the second upper mold and is used to drive the second upper mold to lift and lower, the second upper mold and the second lower mold can be molded together to dry the wet embryo to form a dry embryo, the second upper mold and the second lower mold are molded together to form a second cavity for accommodating the wet embryo, the second upper mold and / or the second lower mold are provided with a sealing structure, and the sealing structure surrounds the second cavity; the second upper mold or the second lower mold is provided with a second channel structure, one end of the second channel structure is connected to the second cavity, and the other end is connected to the second vacuum assembly; The cutting device comprises a third upper die, a third lower die and a third lifting drive assembly, wherein the third lifting drive assembly is driven and connected to the third upper die, the third lower die is used for placing the dry embryo, the third lifting drive assembly is driven and connected to the third upper die, and is used to drive the third upper die to rise and fall, and the third upper die can cooperate with the third lower die to cut the dry embryo.

2. The pulp molding product production line according to claim 1, characterized in that: The drying device further includes a second translation driving assembly, which is drivingly connected to the second lower mold and is used to drive the second lower mold to move below the second upper mold or the first upper mold.

3. The pulp molding product production line according to claim 1, characterized in that: A plurality of second cavities are formed between the second upper mold and the second lower mold, each of the second cavities corresponds to at least one of the second channel structures, and the sealing structure surrounds at least two of the second cavities.

4. The pulp molding product production line according to claim 1, characterized in that: The first upper mold can be molded together with the first lower mold to form a first cavity for accommodating a wet embryo between the first upper mold and the first lower mold. The first upper mold and the first lower mold can extrude the wet embryo in the first cavity.

5. The pulp molding product production line according to claim 4, characterized in that: The molding device also includes a first vacuum pumping component. The first lower mold is provided with a first channel structure. One end of the first channel structure is connected to the first cavity, and the other end is connected to the first vacuum pumping component.

6. The pulp molding product production line according to claim 5, characterized in that: The first upper mold is provided with a first punch, the first upper mold is formed with a boss surrounding the first punch, and the first upper mold forms a groove between the first punch and the boss; the first lower mold is provided with a first die, the first lower mold is formed with a bulge surrounding the first die; wherein, the first cavity includes a first part and a second part, when the first upper mold and the first lower mold are closed, the first punch is inserted into the first die, and the first part is formed between the first punch and the first die, the bulge is inserted into the groove, and the second part is formed between the bulge and the groove, the first part and the second part are connected, and the boss abuts against the end face of the first lower mold close to the first upper mold.

7. The pulp molding product production line according to claim 6, characterized in that: One end of the first part close to the second part forms a wave section.

8. The pulp molding product production line according to claim 1, characterized in that: The third upper mold includes a third punch; the third lower mold includes a third die, a top plate and an elastic member, the third die is provided with a third cavity opposite to the third punch, the top plate is movably arranged in the third cavity and used to carry the dry embryo, the elastic member is arranged in the third cavity and abuts against the top plate, the elastic member applies an elastic force toward the third punch to the top plate, and the third die is provided with a limiting portion, the limiting portion abuts against the top plate to limit the top plate from leaving the third cavity.

9. The pulp molding product production line according to claim 8, characterized in that: The third punch and the third die are both provided with a trimming structure, and a plane perpendicular to the direction of opening and closing the mold is defined as a projection plane. The projection of the trimming structure on the projection plane surrounds the projection of the third cavity on the projection plane. The trimming structure is used to cut off the dry embryo along a path surrounding the third cavity.

10. The pulp molding product production line according to claim 8, characterized in that: The third concave mold includes a lower mold plate and a limiting plate. The lower mold plate is provided with the third cavity. The limiting plate is arranged on the top side of the lower mold plate and at least partially extends to the top side of the third cavity to form the limiting portion.

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