Wet paper shape dredging system, wet paper shape product and wet paper-shape product forming method

Abstract

A wet paper shape dredging system is disclosed herein, which comprises at least one slurry tank, at least one molding assembly and at least one suction device. The at least one slurry tank is used to store paper slurry. The at least one molding assembly is used to dredge the paper slurry from the at least one slurry tank and make the paper slurry to form at least two wet pulp layers within the at least one molding assembly. The at least one suction device is used to acceleratively release the water and/or moisture from one of the at least two wet pulp layers. The present invention solves the bridge effect.

1 . A wet paper shape dredging system, comprising:
 at least one slurry tank, used to store paper slurry;   at least one molding assembly, used to dredge up a pulp body contained within the paper slurry from the at least one slurry tank and make the paper slurry to form at least two wet pulp layers within the at least one molding assembly; and   at least one suction device, used to acceleratively drain water and/or moisture from one of the at least two wet pulp layers.   
     
     
         2 . The wet paper shape dredging system according to  claim 1 , wherein the at least one slurry tank comprises a first slurry tank and a second slurry tank, the first slurry tank is used to store first paper slurry, the second slurry tank is used to store a second paper slurry. 
     
     
         3 . The wet paper shape dredging system according to  claim 2 , wherein the first paper slurry and the second paper slurry have the same or different compositions. 
     
     
         4 . The wet paper shape dredging system according to  claim 2 , wherein a mean fiber length of the first paper slurry and a mean fiber length of the second paper slurry are different from each other. 
     
     
         5 . The wet paper shape dredging system according to  claim 1 , wherein the at least one molding assembly comprises a first molding assembly, the first molding assembly comprises a first upper mold and a first lower mold, the first lower mold dredges up the pulp body of the paper slurry from the at least one slurry tank and then the first upper mold and the first lower mold are matched with each other to form the at least two wet pulp layers between the first upper mold and the first lower mold, sequentially. 
     
     
         6 . The wet paper shape dredging system according to  claim 2 , wherein the at least one molding assembly comprises a first molding assembly and a second molding assembly, the first molding assembly comprises a first upper mold and a first lower mold, the first lower mold dredges up a pulp body of the first paper slurry from the first slurry tank and then the first upper mold and the first lower mold are matched with each other to form a first wet pulp layer between the first upper mold and the first lower mold, sequentially, and the first lower molding assembly comprises a second upper mold and a second lower mold, the second lower mold dredges up a pulp body of the second paper slurry from the second slurry tank and then the second upper mold and second the lower mold are matched with each other to form a second wet pulp layer between the second upper mold and the second lower mold, sequentially. 
     
     
         7 . The wet paper shape dredging system according to  claim 2 , wherein the at least one molding assembly comprises a first molding assembly and a second molding assembly, the first molding assembly comprises a first upper mold and a first lower mold, the first lower mold dredges up a pulp body of the first paper slurry from the first slurry tank and then the first upper mold and the first lower mold are matched with each other to form a first wet pulp layer between the first upper mold and the first lower mold, and the first lower mold dredges up a pulp body of the second paper slurry from the second slurry tank and then the first upper mold and the first lower mold are matched with each other to form a second wet pulp layer between the first upper mold and the first lower mold, sequentially,. 
     
     
         8 . The wet paper shape dredging system according to  claim 1 , wherein the at least two wet pulp layers have different sizes but are tightly combined. 
     
     
         9 . The wet paper shape dredging system according to  claim 1 , wherein the at least one molding assembly is able to form the at least one wet pulp layer with at least one wet pulp cavity, the at least one wet pulp cavity of the at least one wet pulp layer has a longest length within a range 0-8 mm on a cross-sectional part thereof. 
     
     
         10 . The wet paper shape dredging system according to  claim 9 , wherein the longest length is in a range 0-6 mm. 
     
     
         11 . A wet paper shape product according to the wet paper shape dredging system of  claim 1 , which comprises the at least two wet pulp layers overlapped and shaped in correspondence with each other. 
     
     
         12 . A wet paper shape dredging system, comprising:
 a first slurry tank, used to store first paper slurry; and   a first molding assembly, comprising:
 a first lower mold, comprising a first plane, at least one cavity and at least one first through hole formed on the first plane, the first lower mold being used to dredge up a pulp body contained within the first paper slurry from the first slurry tank; and 
 a first upper mold, comprising a second plane, at least one protrusion corresponding with the at least one cavity being formed on the second plane; 
 wherein the second plane of the first upper mold is sunk below a liquid surface of the first paper slurry of the slurry tank to correspondingly match with the first plane of the first lower mold, under the liquid surface of the first paper slurry, so that at least one first wet pulp layer is formed with at least one part of the pulp body of the first paper slurry between the first plane of the first lower mold and the second plane of the first upper mold. 
   
     
     
         13 . The wet paper shape dredging system according to  claim 12 , wherein the dredging system further comprises an extension device, which is used to make the second plane of the first upper mold sink below the liquid surface of the first paper slurry. 
     
     
         14 . The wet paper shape dredging system according to  claim 12 , wherein the dredging system further comprises at least one first suction device, which is used to acceleratively release the water and/or moisture from the at least one first wet pulp layer. 
     
     
         15 . The wet paper shape dredging system according to  claim 12 , wherein the dredging system further comprises at least one first mesh, which is disposed on the first plane and shaped correspondingly to a shape of the first plane and the at least one cavity, the first mesh is used to leave the at least one first wet pulp layer thereon to prevent the at least one first wet pulp layer from entering the at least one first through hole, in a manner of avoiding choke of the at least one first through hole releasing the water and/or moisture of the at least one first wet pulp layer. 
     
     
         16 . The wet paper shape dredging system according to  claim 12 , wherein the at least one first wet pulp layer comprises at least two layers which have different sizes but tightly combined with each other. 
     
     
         17 . The wet paper shape dredging system according to  claim 12 , wherein the at least one first wet pulp layer has at least one first wet pulp cavity formed correspondingly between the first upper mold and the first lower mold, a horizontal cross-sectional width of the at least one first wet pulp cavity of the at least one first wet pulp layer is formed in a range 0-8 mm. 
     
     
         18 . The wet paper shape dredging system according to  claim 12 , wherein the horizontal cross-sectional width is formed in a range 0-6 mm. 
     
     
         19 . A paper-shape product, which is made from the at least one first wet pulp layer generated by the wet paper shape dredging system according to  claim 12 . 
     
     
         20 . The paper-shape product according to  claim 19 , wherein the at least one first wet pulp layer comprises a plurality of first wet pulp layers overlapped with each other and shaped in correspondence with each other. 
     
     
         21 . A wet paper-shape product forming method, comprising:
 making a first lower mold sink into a first slurry tank, to dredge up a pulp body contained within first paper slurry of the first slurry tank to a first plane of the first lower mold;   moving a second plane of a first upper mold below a liquid surface of the first paper slurry;   correspondingly matching the second plane of the first upper mold and the first plane of the lower mold below the liquid surface of the first paper slurry;   forming at least one first wet pulp layer by at least one part of the pulp body of the first paper slurry between the first plane of the first upper mold and the second plane of the lower mold; and   forming the wet paper-shape product with the to least one first wet pulp layer.   
     
     
         22 . The wet paper-shape product forming method according to  claim 21 , further comprising:
 suctioning water and/or moisture contained within the at least one first wet pulp layer by at least one first through hole disposed at the first lower mold and/or at least one second through hole disposed at the first upper mold, by using a first suction device.   
     
     
         23 . The wet paper-shape product forming method according to  claim 21 , wherein after forming at least one first wet pulp layer by at least one part of the pulp body of the first slurry between the first plane of the first upper mold and the second plane of the lower mold, the method further comprising:
 moving the first upper mold and the first lower mold above the liquid surface of the first paper slurry; and   separating the first upper mold from the second lower mold, above the liquid surface of the first paper slurry.   
     
     
         24 . The wet paper-shape product forming method according to  claim 21 , further comprising:
 performing a heat-compression process for the at least one first wet pulp layer.