CN110552256A - Manufacturing process of degradable tableware - Google Patents
Manufacturing process of degradable tableware Download PDFInfo
- Publication number
- CN110552256A CN110552256A CN201910750762.6A CN201910750762A CN110552256A CN 110552256 A CN110552256 A CN 110552256A CN 201910750762 A CN201910750762 A CN 201910750762A CN 110552256 A CN110552256 A CN 110552256A
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- pulp
- water
- tableware
- box
- filtering
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/32—Defibrating by other means of waste paper
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/14—Secondary fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J5/00—Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch-moulds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Abstract
the invention discloses a manufacturing process of degradable tableware, which comprises the following steps in sequence: s1, pulping: quantitatively putting the raw material pulp board into water to fully absorb water and soften the pulp board, adding the pulp board and the trimming leftover materials according to the proportion of 1: 5, putting raw materials in proportion, putting the softened pulp board into a pulp crushing barrel, turning on a switch of a crusher, operating for a specified time in the industry field, crushing the pulp board, putting the crushed pulp board into a pulp blending tank, and adding a certain amount of water according to the specification in the industry field; the invention reduces the cost of drying and dehydration, and simultaneously, the mould pressing can improve the binding force among fibers and enhance the strength of the wet paper mould, the rudiment of the wet paper pulp tableware is formed by a pulp suction forming mode, the formed product has good evenness and high production efficiency, and can be suitable for producing the paper pulp molded product with large length-diameter ratio; the agglomerated slurry is beneficial to returning to the tank again for crushing, and the uniformity of the slurry is improved; is beneficial to the reuse of the wastewater, simultaneously prevents the blockage during the filtration and improves the filtration efficiency and the effect.
Description
Technical Field
the invention relates to the technical field of tableware manufacturing, in particular to a manufacturing process of degradable tableware.
background
Tableware is one of important appliances in our lives, and articles for eating are indispensable. These degradable tableware manufactures are also very numerous in life, but the existing degradable tableware manufactures have the following defects: in a general manufacturing process, the drying and dewatering cost is high, the bonding force between fibers and the strength of a wet paper mold are low, the uniformity of a formed product is poor, the production efficiency is low, and the method is generally not suitable for producing a pulp molding product with large length-diameter ratio; the agglomerated slurry is not beneficial to returning to the tank again for crushing, so that the uniformity of the slurry is reduced; the waste water is not beneficial to reuse, and generally is easy to block during filtering, so that the filtering efficiency and effect are reduced; in view of the defects, a manufacturing process of degradable tableware is needed.
Disclosure of Invention
The invention aims to provide a manufacturing process of degradable tableware, which reduces the cost of drying and dehydration, simultaneously improves the bonding force among fibers by mould pressing, increases the strength of a wet paper mould, forms a rudiment of the wet paper pulp tableware by a pulp absorption forming mode, has good uniformity of a formed product and high production efficiency, and is suitable for producing a paper pulp molded product with large length-diameter ratio; the agglomerated slurry is beneficial to returning to the tank again for crushing, and the uniformity of the slurry is improved; is beneficial to the reuse of the wastewater, simultaneously prevents the blockage during the filtration and improves the filtration efficiency and the effect.
the purpose of the invention can be realized by the following technical scheme:
A manufacturing process of degradable tableware comprises the following steps in sequence:
s1, pulping: quantitatively putting the raw material pulp board into water to fully absorb water and soften the pulp board, adding the pulp board and the trimming leftover materials according to the proportion of 1: 5, putting raw materials in proportion, putting the softened pulp board into a pulp crushing barrel, turning on a switch of a crusher, operating for a specified time in the industry field, crushing the pulp board, putting the crushed pulp board into a pulp blending tank, adding a certain amount of water according to the specification in the industry field to blend the pulp board into pulp with a certain concentration, then adding an oil-proof and water-proof agent provided by a blending chamber, fully stirring, putting the pulp in the pulp blending tank into a pulp supply tank, starting a motor under full stirring, and sending the pulp to a workshop through a conveying pipeline;
S2, forming and molding: the paper pulp from the pulping process is dewatered on a metal mould to form a wet paper pulp tableware rudiment, then mould pressing is carried out, and the fresh water temporarily stored and supplemented in a water storage tank is used for pulping after the water removed in the forming and mould pressing processes is filtered by a filtering device;
s3, drying and demolding: heating and evaporating the pulp tableware prototypes by using the heat of the aluminum shaping mold to remove the water of the pulp tableware prototypes after molding and pressing, and sterilizing at the same time;
S4, shaping and trimming: the trimming die is moved through the oil pressure device, the edges of the product are trimmed by utilizing the pressure of the two trimming dies, the net marks left by paper net forming are eliminated, the inner surface and the outer surface are smooth, some characters and patterns can be pressed according to different customers and use requirements, burrs at the edges of tableware are cut off, and the marks convenient for folding and opening the box cover are pressed;
And S5, checking that the product meets the factory requirements, forwarding the packaging process, checking, packaging and warehousing.
As a further scheme of the invention: and in the step S2, the wet pulp tableware rudiment is formed by a pulp suction forming mode.
As a further scheme of the invention: the heat energy for heating and evaporating the water in the step S3 is provided by a heat-conducting oil furnace, and the heat-conducting oil furnace uses natural gas as fuel.
as a further scheme of the invention: the steps S2 and S3 are both completed on a full-automatic pulp molding hot-press molding production line.
as a further scheme of the invention: the conveying pipeline in the step S1 comprises a water inlet pipeline, a separation box, a backflow component, a filter screen and a water outlet pipeline, the water inlet pipeline is led out from the pulp supply tank and communicated with the inner cavity of the separation box, a filter screen is obliquely arranged in the inner cavity of the separation box, four sides of the filter screen are correspondingly connected with four inner walls of the separation box, the middle position of the bottom of the separation box is connected with a water outlet pipeline, one side of the separation box is provided with a backflow component, and the backflow component comprises a drainage pipeline, a conveying pipe, a rotating shaft, a spiral pushing piece and a servo motor, the unsealed end of the conveying pipe is obliquely connected with the slurry supply tank, the sealed end of the conveying pipe is fixedly connected with a servo motor through a screw, and the output shaft of the servo motor is connected with the rotating shaft in a transmission way through a coupler, the rotating shaft extends into the inner cavity along the axis of the conveying pipe, the rotating shaft is provided with a spiral pushing piece, and two ends of the drainage pipeline are respectively connected with the separation box and the conveying pipe;
wherein, the filter screen falls into two upper and lower back thick liquid cavitys and play liquid cavity with the separator box respectively, filter screen incline direction corresponds the side by the separator box of installation inlet channel and inclines down to the separator box this side of installation inlet channel, drainage pipe is two segmentation inclined tube and incline direction and filter screen incline direction unanimously, it is unanimous with filter screen incline direction to transport tub incline direction, drainage pipe water inlet and filter screen slope bottom parallel and level.
As a further scheme of the invention: the filtering device in the step S2 comprises a filtering box body, supporting columns, a top cover and a filtering assembly, wherein the top cover is connected with the periphery of the top of the filtering box body through the supporting columns, and the top cover is provided with a filter assembly, the filter assembly comprises a filter plate, a sleeve with a threaded hole, a threaded rod and a rotating motor, two rotating motors are symmetrically arranged at two ends of the middle position of the top cover, and the output shaft of the rotating motor is in transmission connection with the threaded rod through the coupler, the filter plate is arranged in the inner cavity of the filter box body, four sides of the filter plate are correspondingly abutted against four inner walls of the filter box body, and two ends of the middle position of the top of the filter plate are symmetrically provided with a sleeve with a threaded hole, and each threaded rod vertically extends into the inner cavity of the filter box body and is connected with the threaded hole on the sleeve with the threaded hole corresponding to the thread in a rotating manner to be connected with the inner wall of the bottom of the filter box body.
the invention has the beneficial effects that:
1. The mould pressing in the technological process makes the moisture in the pulp tableware rudiment in the forming process get rid of, in order to reduce the cost of drying and dehydrating, the mould pressing can improve the binding force among the fiber and increase the intensity of the wet paper mould at the same time, the pulp tableware rudiment is formed through the way of pulp suction forming, the uniformity of the formed product is good, the production efficiency is high, the pulp suction forming is to move the forming mould with filter screen under the liquid level of the stock tank, through vacuum suction, absorb a certain amount of pulp to the forming net, the pulp suction forming can overcome the defect of the slip casting forming way, the uniformity of the wet base is good, can be suitable for producing the pulp moulded product with large length-diameter ratio;
2. the slurry supply tank discharges the stirred slurry into the separation box through the water inlet pipeline, the slurry is filtered by the filter screen, the filtered large slurry blocks are left in the slurry return cavity above the filter screen, the slurry flowing into the liquid outlet cavity below flows out through the water outlet pipeline, the slurry blocks flow into the conveying pipe through the water outlet pipeline, the servo motor drives the rotating shaft to rotate, so that the spiral pushing piece is driven to rotate, the slurry blocks are conveyed and pushed into the slurry supply tank to be continuously stirred and crushed, and the structure is favorable for carrying out secondary tank returning crushing on the caked slurry and improving the uniformity of the slurry;
3. the moisture content of shaping and the in-process desorption of mould pressing passes through the connecting pipe and emits into in filtering the box, the rotating electrical machines drives the threaded rod and rotates, because threaded rod and the sleeve threaded connection who has the screw hole, thereby it removes to drive the filter through the sleeve that has the screw hole, carry out portable filtration to the moisture content of desorption, prevent that debris from blockking up the filtration pore of crossing on the filter, improve filtration efficiency, after filtering many times, the manual work is cleared up debris, the moisture content after will filtering is poured into or the water pump is taken out to the tank in the manual work and is taken out, the structure, be favorable to waste water reuse, prevent to take place the jam when filtering simultaneously, improve filtration efficiency.
drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic view of the structure of the delivery conduit of the present invention;
FIG. 3 is a schematic view of the internal structure of the conveying pipe according to the present invention;
FIG. 4 is a schematic view of a filter device according to the present invention;
FIG. 5 is a schematic view of the internal structure of the filtering apparatus according to the present invention;
In the figure: 1. a water inlet pipe; 2. a separation tank; 3. a reflow assembly; 31. a water discharge pipeline; 32. a delivery tube; 33. a rotating shaft; 34. spirally pushing the sheet; 35. a servo motor; 4. a filter screen; 5. a water outlet pipeline; 10. a filter box body; 20. a support pillar; 30. a top cover; 40. a filter assembly; 401. a filter plate; 402. a sleeve with a threaded hole; 403. a threaded rod; 404. a rotating electric machine.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a manufacturing process of degradable tableware comprises the following steps in sequence:
s1, pulping: quantitatively putting the raw material pulp board into water to fully absorb water and soften the pulp board, adding the pulp board and the trimming leftover materials according to the proportion of 1: 5, putting raw materials in proportion, putting the softened pulp board into a pulp crushing barrel, turning on a switch of a crusher, operating for a specified time in the industry field, crushing the pulp board, putting the crushed pulp board into a pulp blending tank, adding a certain amount of water according to the specification in the industry field to blend the pulp board into pulp with a certain concentration, then adding an oil-proof and water-proof agent provided by a blending chamber, fully stirring, putting the pulp in the pulp blending tank into a pulp supply tank, starting a motor under full stirring, and sending the pulp to a workshop through a conveying pipeline;
as shown in fig. 2-3, wherein the conveying pipeline in the step S1 includes a water inlet pipeline 1, a separation box 2, a backflow component 3, a filter screen 4 and a water outlet pipeline 5, the water inlet pipeline 1 is led out from a slurry supply tank and communicated with an inner cavity of the separation box 2, the filter screen 4 is obliquely arranged in the inner cavity of the separation box 2, four sides of the filter screen 4 are correspondingly connected with four inner walls of the separation box 2, the water outlet pipeline 5 is connected with the middle position of the bottom of the separation box 2, the backflow component 3 is arranged on one side of the separation box 2, the backflow component 3 includes a water discharge pipeline 31, a conveying pipe 32, a rotating shaft 33, a spiral pushing piece 34 and a servo motor 35, the unclosed end of the conveying pipe 32 is obliquely connected with the slurry supply tank, the closed end of the conveying pipe 32 is fixedly connected with the servo motor 35 through a screw, an output shaft of the servo motor 35 is in transmission connection with the rotating shaft, the two ends of the water discharge pipeline 31 are respectively connected with the separation box 2 and the delivery pipeline 32;
the separation box 2 is divided into an upper pulp return cavity and a lower pulp return cavity and a liquid outlet cavity by the filter screen 4 respectively, the inclination direction of the filter screen 4 is inclined downwards from the corresponding side of the separation box 2 provided with the water inlet pipeline 1 to the side of the separation box 2 provided with the water inlet pipeline 1, the drainage pipeline 31 is a two-section inclined pipe, the inclination direction of the drainage pipeline 31 is consistent with that of the filter screen 4, the inclination direction of the conveying pipe 32 is consistent with that of the filter screen 4, and the water inlet of the drainage pipeline 31 is flush with the inclined bottom end;
S2, forming and molding: the paper pulp obtained by the pulping process is dehydrated on a metal mould to form a wet paper pulp tableware rudiment, then mould pressing is carried out, the water removed in the forming and mould pressing processes is filtered by a filtering device and is temporarily stored and supplemented in a water storage tank for pulping, the mould pressing removes the water in the paper pulp tableware rudiment in the forming process so as to reduce the drying and dehydrating cost, and meanwhile, the mould pressing can improve the binding force among fibers and enhance the strength of a wet paper mould;
the wet pulp tableware parison in the step S2 is formed by a pulp suction forming mode, the formed product has good uniformity and high production efficiency, the pulp suction forming is to move a forming die with a filter screen below the liquid level of a stock tank and absorb a certain amount of pulp to the forming screen by vacuum suction, the pulp suction forming can overcome the defect of a slip casting mode, the wet blank has good uniformity and can be suitable for producing pulp molded products with large length-diameter ratio;
As shown in fig. 4 to 5, in the step S2, the filtering apparatus includes a filtering container 10, a supporting pillar 20, a top cover 30 and a filtering assembly 40, the top of the filtering container 10 is connected to the top cover 30 at its periphery by the supporting pillar 20, and the top cover 30 is provided with the filter assembly 40, the filter assembly 40 comprises a filter plate 401, a sleeve 402 with a threaded hole, a threaded rod 403 and a rotating motor 404, two rotating motors 404 are symmetrically arranged at two ends of the middle position of the top cover 30, an output shaft of a rotating motor 404 is in transmission connection with a threaded rod 403 through a coupler, a filter plate 401 is arranged in an inner cavity of the filter box body 10, four sides of the filter plate 401 are correspondingly abutted against four inner walls of the filter box body 10, two ends of the middle position of the top of the filter plate 401 are symmetrically provided with a sleeve 402 with a threaded hole respectively, each threaded rod 403 vertically extends into the inner cavity of the filter box body 10 and is correspondingly in threaded connection with the threaded hole on one sleeve 402 with the threaded hole to be rotatably connected with the inner wall of the bottom of the filter box;
S3, drying and demolding: heating and evaporating the pulp tableware prototypes by using an aluminum shaping mold to remove water of the pulp tableware prototypes after molding and pressing, and sterilizing at the same time, wherein the water is removed by about 18 percent in the process, and the rest 2 percent of water is left in the product;
wherein, the heat energy for heating and evaporating water in the step S3 is provided by a heat-conducting oil furnace, the heat-conducting oil furnace adopts natural gas as fuel, and the steps S2 and S3 are both completed on a full-automatic pulp molding hot-pressing molding production line;
s4, shaping and trimming: the trimming die is moved through the oil pressure device, the edges of the product are trimmed by utilizing the pressure of the two trimming dies, the net marks left by paper net forming are eliminated, the inner surface and the outer surface are smooth, some characters and patterns can be pressed according to different customers and use requirements, burrs at the edges of tableware are cut off, and the marks convenient for folding and opening the box cover are pressed;
And S5, checking that the product meets the factory requirements, forwarding the packaging process, checking, packaging and warehousing.
The working principle of the invention is as follows: the mould pressing in the technological process makes the moisture in the pulp tableware rudiment in the forming process get rid of, in order to reduce the cost of drying and dehydrating, the mould pressing can improve the binding force among the fiber and increase the intensity of the wet paper mould at the same time, the pulp tableware rudiment is formed through the way of pulp suction forming, the uniformity of the formed product is good, the production efficiency is high, the pulp suction forming is to move the forming mould with filter screen under the liquid level of the stock tank, through vacuum suction, absorb a certain amount of pulp to the forming net, the pulp suction forming can overcome the defect of the slip casting forming way, the uniformity of the wet base is good, can be suitable for producing the pulp moulded product with large length-diameter ratio; the slurry supply tank discharges the stirred slurry into the separation box 2 through the water inlet pipeline 1, the slurry is filtered by the filter screen 4, the filtered large slurry block is remained in the slurry return cavity above the filter screen 4, the slurry flowing into the liquid outlet cavity below flows out through the water outlet pipeline 5, the slurry block flows into the conveying pipe 32 through the water outlet pipeline 31, the servo motor 35 drives the rotating shaft 33 to rotate, so as to drive the spiral pushing piece 34 to rotate, the slurry block is transported and pushed to the slurry supply tank to be continuously stirred and crushed, and the structure is favorable for carrying out secondary tank return crushing on the caked slurry and improving the uniformity of the slurry; during the moisture content of shaping and the in-process desorption of mould pressing discharged into filtration box 10 through the connecting pipe, rotating electrical machines 404 drives threaded rod 403 and rotates, because threaded rod 403 and the sleeve 402 threaded connection who has the screw hole, thereby it removes to drive filter 401 through the sleeve 402 that has the screw hole, carry out portable filtration to the moisture content of desorption, prevent that debris from blockking up the filtration hole on the filter 401, and the efficiency of filtration is improved, after filtering many times, the debris are cleared up to the manual work, the moisture content after will filtering is poured into or the water pump is taken out to the tank, the structure, be favorable to waste water reuse, prevent to take place the jam when filtering simultaneously, and the efficiency of filtration and effect are improved.
the preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. the manufacturing process of the degradable tableware is characterized by comprising the following steps in sequence:
S1, pulping: quantitatively putting the raw material pulp board into water to fully absorb water and soften the pulp board, adding the pulp board and the trimming leftover materials according to the proportion of 1: 5, putting raw materials in proportion, putting the softened pulp board into a pulp crushing barrel, turning on a switch of a crusher, operating for a specified time in the industry field, crushing the pulp board, putting the crushed pulp board into a pulp blending tank, adding a certain amount of water according to the specification in the industry field to blend the pulp board into pulp with a certain concentration, then adding an oil-proof and water-proof agent provided by a blending chamber, fully stirring, putting the pulp in the pulp blending tank into a pulp supply tank, starting a motor under full stirring, and sending the pulp to a workshop through a conveying pipeline;
S2, forming and molding: the paper pulp from the pulping process is dewatered on a metal mould to form a wet paper pulp tableware rudiment, then mould pressing is carried out, and the fresh water temporarily stored and supplemented in a water storage tank is used for pulping after the water removed in the forming and mould pressing processes is filtered by a filtering device;
s3, drying and demolding: heating and evaporating the pulp tableware prototypes by using the heat of the aluminum shaping mold to remove the water of the pulp tableware prototypes after molding and pressing, and sterilizing at the same time;
s4, shaping and trimming: the trimming die is moved through the oil pressure device, the edges of the product are trimmed by utilizing the pressure of the two trimming dies, the net marks left by paper net forming are eliminated, the inner surface and the outer surface are smooth, some characters and patterns can be pressed according to different customers and use requirements, burrs at the edges of tableware are cut off, and the marks convenient for folding and opening the box cover are pressed;
and S5, checking that the product meets the factory requirements, forwarding the packaging process, checking, packaging and warehousing.
2. The process of claim 1, wherein the wet pulp tableware prototype is formed by pulp suction molding in step S2.
3. the process of claim 1, wherein the heat energy for heating and evaporating water in step S3 is provided by a heat-conducting oil furnace using natural gas as fuel.
4. the manufacturing process of degradable tableware according to claim 1, wherein the steps S2 and S3 are all completed on a full-automatic pulp molding hot-press molding production line.
5. the manufacturing process of degradable tableware according to claim 1, wherein the conveying pipeline in the step S1 comprises a water inlet pipeline (1), a separation box (2), a backflow component (3), a filter screen (4) and a water outlet pipeline (5), the water inlet pipeline (1) is led out from a pulp supply pool and is communicated with the inner cavity of the separation box (2), the filter screen (4) is obliquely arranged in the inner cavity of the separation box (2), four sides of the filter screen (4) are correspondingly connected with four inner walls of the separation box (2), the water outlet pipeline (5) is connected to the middle position of the bottom of the separation box (2), the backflow component (3) is arranged on one side of the separation box (2), the backflow component (3) comprises a drainage pipeline (31), a conveying pipe (32), a rotating shaft (33), a spiral pushing sheet (34) and a servo motor (35), the unclosed end of the conveying pipe (32) is obliquely connected with the pulp supply pool, the conveying pipe (32) is fixedly connected with a servo motor (35) through a screw, an output shaft of the servo motor (35) is in transmission connection with a rotating shaft (33) through a coupler, the rotating shaft (33) extends into an inner cavity along the axis of the conveying pipe (32), a screw pushing piece (34) is arranged on the rotating shaft (33), and two ends of a drainage pipeline (31) are respectively connected with the separation box (2) and the conveying pipe (32);
Wherein, two time thick liquid cavitys and play liquid cavity about filter screen (4) divide into respectively with separator box (2), filter screen (4) incline direction corresponds the side declination by separator box (2) of installation inlet channel (1) to separator box (2) this side of installation inlet channel (1), drainage pipe (31) are two segmentation inclined pipe and incline direction unanimous with filter screen (4) incline direction, it is unanimous with filter screen (4) incline direction to transport pipe (32) incline direction, drainage pipe (31) water inlet and filter screen (4) slope bottom parallel and level.
6. The manufacturing process of degradable tableware according to claim 1, wherein said filtering device in step S2 comprises a filtering box (10), a supporting pillar (20), a top cover (30) and a filtering component (40), said top of filtering box (10) is connected with top cover (30) by supporting pillar (20) around, and said top cover (30) is installed with filtering component (40), said filtering component (40) comprises a filtering plate (401), a sleeve (402) with threaded hole, a threaded rod (403) and a rotating motor (404), two ends of the middle position of the top of top cover (30) are symmetrically installed with a rotating motor (404), and said rotating motor (404) output shaft is connected with threaded rod (403) by a coupler, said filtering plate (401) is installed in the inner cavity of filtering box (10) and four sides of filtering plate (401) are corresponding to four inner walls of filtering box (10), and two ends of the middle position of the top of the filter plate (401) are symmetrically provided with sleeves (402) with threaded holes, and each threaded rod (403) vertically extends into the inner cavity of the filter box body (10) and is connected with the threaded hole on one sleeve (402) with the threaded hole corresponding to the thread and is rotatably connected with the inner wall of the bottom of the filter box body (10).
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| CN111347521A (en) * | 2020-04-13 | 2020-06-30 | 袁兴飞 | Processing technology of food-grade 24-hour degradable snack box |
| CN112982034A (en) * | 2021-02-05 | 2021-06-18 | 永发（河南）模塑科技发展有限公司 | Pipeline system capable of achieving color fast switching |
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2019
- 2019-08-15 CN CN201910750762.6A patent/CN110552256A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111347521A (en) * | 2020-04-13 | 2020-06-30 | 袁兴飞 | Processing technology of food-grade 24-hour degradable snack box |
| CN112982034A (en) * | 2021-02-05 | 2021-06-18 | 永发（河南）模塑科技发展有限公司 | Pipeline system capable of achieving color fast switching |
| CN112982034B (en) * | 2021-02-05 | 2022-08-05 | 永发（河南）模塑科技发展有限公司 | Pipeline system capable of achieving color fast switching |
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