Molding device

Abstract

The utility model discloses a forming device. The forming device comprises an upper die and a lower die. The upper die is provided with a male die, a boss surrounding the male die is formed on the upper die, and a groove is formed between the male die and the boss on the upper die; the lower die is provided with a female die, and a protrusion surrounding the female die is formed on the lower die. When the upper die and the lower die are closed, the male die is inserted into the female die, a first cavity is formed between the male die and the female die, the protrusion is inserted into the groove, a second cavity is formed between the protrusion and the groove, the first cavity is communicated with the second cavity, and the second cavity is communicated with the protrusion. The boss abuts against the end face, close to the upper die, of the lower die. And the upper die and the lower die are closed to extrude the wet blank, so that water in the wet blank is partially extruded, the water content in the wet blank is reduced, and heat energy required by a subsequent drying device in the wet blank drying process is reduced. The boss abuts against the end face, close to the upper die, of the lower die, and the sealing performance of the first cavity and the second cavity is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a pulp molding product production equipment, in particular to a forming device. BACKGROUND

[0002] In the process of forming the wet embryo, the lower mold is located in the pulp pool to absorb the pulp, so that the fibers in the pulp adhere to the concave mold of the lower mold to preliminarily form the wet embryo. Then, the upper mold takes away the wet embryo on the lower mold to complete the feeding of the wet embryo into the drying device to dry the wet embryo into a dry embryo. The wet embryo has a high water content, which requires a high heat energy in the process of drying the wet embryo in the drying device. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a forming device which can reduce the water content of the wet embryo before it enters the drying device and reduce the heat energy required for drying the wet embryo in the drying device.

[0004] The forming device according to the embodiments of the present application comprises an upper mold and a lower mold.

[0005] The upper mold is provided with a convex mold, the upper mold is formed with a convex platform surrounding the convex mold, and the upper mold forms a groove between the convex mold and the convex platform; the lower mold is provided with a concave mold, and the lower mold is formed with a convexity surrounding the concave mold;

[0006] When the upper mold and the lower mold are closed, the convex mold is inserted into the concave mold to form a first mold cavity between the convex mold and the concave mold, and the convexity is inserted into the groove to form a second mold cavity between the convexity and the groove, the first mold cavity and the second mold cavity are communicated, and the convex platform abuts against the end face of the lower mold close to the upper mold.

[0007] The forming device according to the embodiments of the present application has at least the following beneficial effects: the lower mold can absorb the pulp in the pulp pool and make the fibers in the pulp adhere to the concave mold and the convexity of the lower mold to preliminarily form the wet embryo. Then, the upper mold is closed with the lower mold to extrude the water in the wet embryo, reduce the water content in the wet embryo, and reduce the heat energy required in the subsequent drying process of the wet embryo in the drying device. The wet embryo corresponds to the first mold cavity and the second mold cavity, the main part of the wet embryo corresponds to the first mold cavity, and the edge part of the wet embryo corresponds to the second mold cavity. The convex platform abuts against the end face of the lower mold close to the upper mold to improve the sealing performance of the first mold cavity and the second mold cavity, so that the water extruded from the wet embryo can flow away from the first air suction channel of the lower mold.

[0008] According to some embodiments of the present application, the first mold cavity forms a wave section close to one end of the second mold cavity.

[0009] According to some embodiments of the present application, the plurality of male dies are provided, and the plurality of bosses, the plurality of grooves, the plurality of female dies and the plurality of protrusions correspond to the plurality of male dies one by one.

[0010] According to some embodiments of the present application, a partition structure is further provided, and the partition structure is arranged on the lower die and located between two adjacent protrusions; when the upper die and the lower die are combined, the boss is located between the protrusion and the partition structure.

[0011] According to some embodiments of the present application, the partition structure and the lower die are arranged in a spaced manner close to the end surface of the upper die, and a mesh structure is arranged between the partition structure and the lower die.

[0012] According to some embodiments of the present application, the lower die is provided with a plurality of first air suction channels, one end of the first air suction channel is communicated with the first cavity and / or the second cavity, and the other end is used for communicating with a vacuumizing device.

[0013] According to some embodiments of the present application, the lower die is provided with a first air cavity, the first air cavity is communicated with the other end of the plurality of first air suction channels, and is used for communicating with the vacuumizing device.

[0014] According to some embodiments of the present application, the upper die is provided with a plurality of second air suction channels, and the second air suction channels are communicated with the first cavity and / or the second cavity.

[0015] According to some embodiments of the present application, the upper die is provided with a second air cavity, the second air cavity is communicated with the other end of the plurality of second air suction channels, and is used for communicating with the vacuumizing device.

[0016] According to some embodiments of the present application, the upper die is provided with a second positioning structure, and the lower die is provided with a first positioning structure, when the upper die and the lower die are combined, the second positioning structure and the first positioning structure are inserted and fitted.

[0017] Additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood by those skilled in the art through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0019] Figure 1 The structure schematic diagram of the molding device of the embodiments of the present application is shown;

[0020] Figure 2 The sectional view of the molding device of the embodiments of the present application is shown;

[0021] Figure 3 The sectional view of the molding device of the embodiments of the present application is shown; Figure 2An enlarged view of the middle A;

[0022] Figure 4 Another sectional view of the forming device of the embodiment of the present application;

[0023] Figure 5 An enlarged view of the middle B; Figure 1 An enlarged view of the middle A;

[0024] Figure 6 An enlarged view of the middle B; Figure 5 An enlarged view of the middle A;

[0025] Figure 7 An enlarged view of the middle B; Figure 1 An enlarged view of the middle A;

[0026] Figure 8 An enlarged view of the middle B; Figure 7 An enlarged view of the middle A;

[0027] Reference signs:

[0028] Upper mold 100, male mold 110, boss 120, groove 130, second air suction channel 140, second air cavity 150, second positioning structure 160;

[0029] Lower mold 200, female mold 210, protrusion 220, first air suction channel 230, first air cavity 240, first positioning structure 250;

[0030] First cavity 310, wave section 311, second cavity 320;

[0031] Partition structure 410, mesh structure 420. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0033] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0034] In the description of the present application, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, 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 indicated technical features or the sequence of indicated technical features.

[0035] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0036] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0037] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 8 , the forming device according to the embodiment of the present application comprises: an upper die 100 and a lower die 200.

[0038] The upper die 100 is provided with a male die 110, the upper die 100 is formed with a boss 120 around the male die 110, and the upper die 100 is formed with a groove 130 between the male die 110 and the boss 120; the lower die 200 is provided with a female die 210, and the lower die 200 is formed with a protrusion 220 around the female die 210;

[0039] Wherein, when the upper die 100 and the lower die 200 are closed, the male die 110 is inserted into the female die 210, and a first cavity 310 is formed between the male die 110 and the female die 210, the protrusion 220 is inserted into the groove 130, and a second cavity 320 is formed between the protrusion 220 and the groove 130, the first cavity 310 and the second cavity 320 are communicated, and the boss 120 abuts against the end surface of the lower die 200 close to the upper die 100.

[0040] It can be understood that a plurality of first suction channels 230 communicating with the vacuumizing device are formed on the lower mold 200 to be able to absorb the pulp in the pulp pool and make the fibers in the pulp adhere to the concave die 210 and the protrusion 220 of the lower mold 200 to preliminarily form a wet embryo. Then, the upper mold 100 and the lower mold 200 are closed to extrude the wet embryo to extrude part of the water in the wet embryo and reduce the water content in the wet embryo to reduce the heat energy required in the subsequent drying process of the drying device. Specifically, the wet embryo corresponds to the first cavity 310 and the second cavity 320. It should be understood that the main part of the wet embryo corresponds to the first cavity 310, and the edge part of the wet embryo corresponds to the second cavity 320. The protrusion 120 abuts against the end face of the lower mold 200 close to the upper mold 100 to improve the sealing performance of the first cavity 310 and the second cavity 320, so that the water extruded from the wet embryo can be sucked away by the first suction channel 230 of the lower mold 200, and the water content of the wet embryo is further reduced.

[0041] In addition, by arranging the groove 130 between the convex die 110 and the protrusion 120, the second cavity 320 formed by the cooperation of the groove 130 and the protrusion 220 can make the edge part of the wet embryo form a bending structure, so that the water in the wet embryo can be easily sucked away by the first suction channel 230.

[0042] In some cases, by abutting the protrusion 120 against the end face of the lower mold 200 close to the upper mold 100, the risk of the fibers of the edge part of the wet embryo being extruded out of the second cavity 320 due to the extrusion of the upper mold 100 and the lower mold 200 can be reduced, and the risk of the fibers of the edge part of the wet embryo being extruded out of the second cavity 320 due to the water being extruded out of the edge of the upper mold 100 and the lower mold 200 can be reduced, so that the structural integrity of the wet embryo is maintained. In addition, by the cooperation of the groove 130 and the protrusion 220, the risk of the edge part of the wet embryo being extruded out of the second cavity 320 can be further reduced.

[0043] It should be noted that, in order to avoid the fibers in the pulp being taken away by the first suction channel 230, a filter screen can be arranged on the lower mold 200 to cover the opening of the first suction channel 230 formed on the lower mold 200 to block the fibers from entering the first suction channel 230, or only the filter screen is arranged at the opening of the first suction channel 230 formed on the lower mold 200, or the opening of the first suction channel 230 formed on the lower mold 200 is made small to avoid the fibers entering the first suction channel 230.

[0044] Referring to Figure 3 According to some embodiments of the present application, the first cavity 310 forms a wavy section 311 at one end close to the second cavity 320.

[0045] It can be understood that by forming the wave section 311 at the end of the first cavity 310 close to the second cavity 320, the water in the wet embryo can be beneficially absorbed by the first suction channel 230. And in some cases, the fibers of the wet embryo body part can be prevented from being extruded at the second cavity 320 to further reduce the possibility of the fibers of the wet embryo edge part being extruded.

[0046] With reference to Figure 1 , Figure 5 and Figure 7 , according to some embodiments of the present application, the male die 110 is provided with a plurality of, and the boss 120, the groove 130, the female die 210 and the protrusion 220 correspond one-to-one with the male die 110.

[0047] It can be understood that by providing a plurality of one-to-one corresponding male dies 110, bosses 120, grooves 130, female dies 210 and protrusions 220, the upper die 100 and the lower die 200 can extrude a plurality of wet embryos in one clamping process.

[0048] With reference to Figure 2 , Figure 3 , Figure 5 and Figure 6 , according to some embodiments of the present application, the molding device of the present application further comprises a separation structure 410, which is provided on the lower die 200, and the separation structure 410 is located between two adjacent protrusions 220; when the upper die 100 and the lower die 200 are clamped, the boss 120 is located between the protrusion 220 and the separation structure 410.

[0049] It can be understood that the separation structure 410 can separate two adjacent wet embryos to make the formed wet embryos independent of each other, which is convenient for discharging. And the separation structure 410 is provided close to the boss 120, and after the upper die 100 and the lower die 200 are clamped, the boss 120 is located between the separation structure 410 and the protrusion 220, so that the fibers of the wet embryo edge part are more difficult to overflow from the second cavity 320. It should be understood that with reference to Figure 5 , the separation structure 410 is substantially mesh-shaped and forms a plurality of acupoints, each acupoint corresponds to a female die 210, which can help the female die 210 to limit the wet embryo in the acupoint during the process of forming the wet embryo by absorbing the slurry.

[0050] With reference to Figure 3 , according to some embodiments of the present application, the separation structure 410 and the lower die 200 are spaced apart from the end face of the upper die 100, and the mesh structure 420 is provided between the separation structure 410 and the lower die 200.

[0051] It should be noted that when the upper die 100 and the lower die 200 are closed, part of the water formed by extruding the wet embryo can still overflow from the end surface between the boss 120 and the lower die 200. It can be understood that the mesh structure 420 can play a role in water drainage. The mesh structure 420 is arranged between the partition structure 410 and the lower die 200. Water can flow out of the mesh structure 420, while fibers cannot pass through the mesh structure 420. Thus, water can be prevented from accumulating between the boss 120 and the partition structure 410, and fibers can be prevented from flowing out.

[0052] Referring to Figure 4 According to some embodiments of the present application, the lower die 200 is provided with a plurality of first air suction channels 230. One end of the first air suction channel 230 is communicated with the first cavity 310 and / or the second cavity 320, and the other end is used to communicate with the vacuum pumping device.

[0053] It can be understood that part of the first air suction channel 230 is communicated with the first cavity 310, and part of the first air suction channel 230 is communicated with the second cavity 320. That is, the opening of the first air suction channel 230 is formed at the position of the lower die 200 corresponding to the first cavity 310 and the second cavity 320. The vacuum pumping device sucks air to generate suction force in the first air suction channel 230. The lower die 200 in the slurry pool absorbs the slurry through the first air suction channel 230. The water in the slurry is discharged through the first air suction channel 230, and the fibers in the slurry cannot pass through the first air suction channel 230 and adhere to the lower die 200 to form a wet embryo. Moreover, by arranging a plurality of first air suction channels 230, the efficiency of forming a wet embryo can be improved, and the thickness of the wet embryo can be uniform.

[0054] Specifically, part of the first air suction channel 230 is communicated with the first cavity 310 and the second cavity 320.

[0055] Referring to Figure 4 According to some embodiments of the present application, the lower die 200 is provided with a first air cavity 240. The first air cavity 240 is communicated with the other end of the plurality of first air suction channels 230 and is used to communicate with the vacuum pumping device.

[0056] It can be understood that the plurality of first air suction channels 230 are communicated through the first air cavity 240. Thus, the vacuum pumping device only needs to communicate with the first air cavity 240 to communicate with the plurality of first air suction channels 230. In this way, the vacuum pumping device can control the air suction state of the plurality of first air suction channels 230 at the same time. Moreover, the vacuum pumping device communicates with the plurality of first air suction channels 230 through the first air cavity 240 to make the airflow of each first air suction channel 230 uniform, thereby improving the uniformity of the thickness of the wet embryo.

[0057] Specifically, the first air cavity 240 corresponds to the die 210 one by one, each die 210 corresponds to a first air cavity 240, and specifically, the plurality of first air cavities 240 are communicated, and the vacuum pumping device is communicated with one of the first air cavities 240 to communicate the plurality of first air cavities 240.

[0058] Referring to Figure 2 According to some embodiments of the present application, the upper die 100 is provided with a plurality of second suction channels 140, and the second suction channels 140 are communicated with the first cavity 310 and / or the second cavity 320.

[0059] It can be understood that part of the second suction channels 140 are communicated with the first cavity 310, and part of the second suction channels 140 are communicated with the second cavity 320, that is, the openings of the second suction channels 140 are formed at positions of the upper die 100 corresponding to the first cavity 310 and the second cavity 320, and the vacuum pumping device sucks air to generate suction force in the second suction channels 140, so that the wet blank after extrusion forming is adsorbed on the upper die 100 after the upper die 100 and the lower die 200 are separated, facilitating the wet blank to be discharged to other stations.

[0060] Referring to Figure 2 According to some embodiments of the present application, the upper die 100 is provided with a second air cavity 150, the second air cavity 150 is communicated with the other end of the plurality of second suction channels 140, and is used to communicate with the vacuum pumping device.

[0061] It can be understood that the plurality of second suction channels 140 are communicated through the second air cavity 150, so that the vacuum pumping device only needs to communicate with the second air cavity 150 to communicate with the plurality of second suction channels 140, so that the vacuum pumping device can control the air suction state of the plurality of second suction channels 140 at the same time, and the vacuum pumping device communicates with the plurality of second suction channels 140 through the second air cavity 150 to make the air flow of each second suction channel 140 uniform, ensuring the adsorption force of the wet blank.

[0062] Specifically, the second air cavity 150 corresponds to the punch 110 one by one, each punch 110 corresponds to a second air cavity 150, and specifically, the plurality of second air cavities 150 are communicated, and the vacuum pumping device is communicated with one of the second air cavities 150 to communicate the plurality of second air cavities 150.

[0063] It should be understood that the vacuum pumping device is provided with at least two, and the first suction channel 230 and the second suction channel 140 are connected to different vacuum pumping devices, so as to independently control the first suction channel 230 and the second suction channel 140.

[0064] Referring to Figure 1According to some embodiments of the present application, the upper die 100 is provided with a second positioning structure 160, and the lower die 200 is provided with a first positioning structure 250. When the upper die 100 and the lower die 200 are closed, the second positioning structure 160 and the first positioning structure 250 are inserted and matched.

[0065] It can be understood that, through the insertion and matching of the second positioning structure 160 and the first positioning structure 250, the accuracy of the closing process of the upper die 100 and the lower die 200 can be improved, and the stability of the upper die 100 and the lower die 200 after being closed can be improved.

[0066] Specifically, the second positioning structure 160 is a positioning pin, and the first positioning structure 250 is a positioning block, and a positioning hole for inserting the positioning pin is formed on the positioning block.

[0067] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made 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. A forming device, characterized in that The application relates to a mold, comprising: an upper mold provided with a male mold, the upper mold being formed with a boss surrounding the male mold, the upper mold forming a groove between the male mold and the boss; a lower mold provided with a female mold, the lower mold being formed with a protrusion surrounding the female mold; wherein when the upper mold and the lower mold are closed, the male mold is inserted into the female mold to form a first cavity between the male mold and the female mold, the protrusion is inserted into the groove to form a second cavity between the protrusion and the groove, the first cavity and the second cavity are communicated, and the boss abuts against an end face of the upper mold close to the lower mold. The first cavity is formed with a wave section close to one end of the second cavity. The male mold is provided with a plurality of male molds, and the boss, the groove, the female mold and the protrusion correspond to the male molds one by one. The mold further comprises a separation structure, the separation structure being arranged on the lower mold and being located between two adjacent protrusions; when the upper mold and the lower mold are closed, the boss is located between the protrusion and the separation structure.

2. The forming device of claim 1, wherein The separation structure and the lower mold are arranged in a spaced mode close to an end face of the upper mold, and a mesh structure is arranged between the separation structure and the lower mold.

3. The forming device of claim 1, wherein The lower mold is provided with a plurality of first air suction channels, one end of the first air suction channels being communicated with the first cavity and / or the second cavity, and the other end of the first air suction channels being used for being communicated with a vacuumizing device.

4. The forming device of claim 3, wherein The lower mold is provided with a first air cavity, the first air cavity being communicated with the other ends of the plurality of first air suction channels and being used for being communicated with the vacuumizing device.

5. The forming device of claim 4, wherein The upper mold is provided with a plurality of second air suction channels, the second air suction channels being communicated with the first cavity and / or the second cavity.

6. The forming device of claim 1, wherein The upper mold is provided with a second air cavity, the second air cavity being communicated with the other ends of the plurality of second air suction channels and being used for being communicated with the vacuumizing device.

7. The forming device of claim 6, wherein The upper mold is provided with a second positioning structure, and the lower mold is provided with a first positioning structure, the second positioning structure and the first positioning structure being inserted and matched when the upper mold and the lower mold are closed.

8. The forming device of claim 1, wherein ​ 9. The forming device of claim 8, wherein, ​ 10. The forming device of claim 1, wherein ​

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