WO2005012640A1 - Device and manufacturing process for forming articles from plant fibre - Google Patents

Device and manufacturing process for forming articles from plant fibre Download PDF

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Publication number
WO2005012640A1
WO2005012640A1 PCT/SG2004/000229 SG2004000229W WO2005012640A1 WO 2005012640 A1 WO2005012640 A1 WO 2005012640A1 SG 2004000229 W SG2004000229 W SG 2004000229W WO 2005012640 A1 WO2005012640 A1 WO 2005012640A1
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WO
WIPO (PCT)
Prior art keywords
moulding
automatic device
thermal
fibre
moulded article
Prior art date
Application number
PCT/SG2004/000229
Other languages
French (fr)
Inventor
Kim Luang Yeo
Tian Bo Zheng
Original Assignee
Ecologico Packaging Sdn Bhd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ecologico Packaging Sdn Bhd filed Critical Ecologico Packaging Sdn Bhd
Publication of WO2005012640A1 publication Critical patent/WO2005012640A1/en

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J7/00—Manufacture of hollow articles from fibre suspensions or papier-mâché by deposition of fibres in or on a wire-net mould

Definitions

  • the present invention relates to an automatic machinery, particularly adapted for manufacturing moulded articles from plant fibre slurry, and to process of manufacturing plant fibres moulded article.
  • Plastic is a synthetic polymers made of oil and natural gas. Plastic were introduced less than 100 years ago and quickly become the world's most use material, especially in packaging and containers manufacturing industries. The plastic materials commonly used for article moulding are polypropylene (PP), polystyrene (PS), and polyethylene (PE). However, there are many drawbacks associated with the use of plastic as raw materials for packaging or containers. Plastic is a major part of household waste and is non-biodegradable. It can take hundreds of years to break down in landfill. Plastics generate toxic emissions if incinerated and although some plastics can be recycled, the recycling process in many cases can be more expensive than the original material. Waste plastic litters found in rivers and seas where it is responsible for the deaths of thousands of seabirds, sea mammals and fish.
  • the pulp moulded products are biodegradable, recyclable, and more environmental friendly.
  • the pulp moulded products have several drawbacks. These products are preferably made from recycled pulp obtained from recycled newsprint or other recycled paper.
  • the paper recycling process involved pulping, screening, de-inking, bleaching and refining, which is costly and energy consuming.
  • various chemicals are used during the recycling process, which may cause environmental pollution if proper controls are not executed.
  • Fibre bearing material such as rice husk, straws, oil palm empty fruit bunch and frond are abundantly available in Asia country. These fibre bearing materials which are usually being abandoned may be used as raw material to replace paper pulp for making plant fibres moulded packaging and containers. Furthermore, the plant fibres slurry need not high cost of preparation before it is moulded into shape compared to paper pulp. Therefore it would be an advantage to transform the existing paper pulp moulding process to manufacture plant fibre moulded products.
  • Another object of the present invention is to provide a plant fibres moulded article forming machine having at least one thermal-press station located at each side of the forming station to increase the production efficiency.
  • a further object of the present mvention is to increase the speed of conveying operation by having an independent conveyor system attached to the corresponding thermal-press station in the plant fibres moulded article forming machine.
  • Yet another object of the present invention is to produce diluted plant fibres slurry comprising of water , 0.05% to 1.0% of fibres content, and 0.01% to 30% of food graded water resistant agent and oil resistant agent.
  • the present mvention relates to an automatic device for producing moulded plant fibre product from plant fibre slurry
  • a moulding station having a moulding means for forming a wet moulded article; at least one thermal forming station positioned at each side of said moulding station in order to dry and shaped said wet moulded article; and characterized in that each thermal forming station is attached with an independent conveyor system whereby the finished plant fibre moulded article produced from each thermal forming station can be sent off from the device efficiently.
  • the moulding station consists of an upper transferring chamber and a lower perforated mould mounted within a slurry tank.
  • the transferring chamber having an upper platen carries a forming mould to receive a wet fibre moulded article form on the lower perforated mould.
  • the wet fibre moulded article is then transferred from the upper forming mould to the lower thermal moulding die and the upper thermal moulding carried on a upper platen is lowered into contact with the lower thermal moulding die in the thermal forming station.
  • the wet fibre moulded article is dried and shaped.
  • the dried finish moulded article is deposited onto a conveyor and sent off from the automatic moulding machine for post processing such as trimming and sterilization.
  • Figure 1 shows a front view of an automatic device for manufacturing plant fibre moulded article from plant fibre slurry.
  • An automatic moulding device (1) for manufacturing a plant fibre moulded article from plant fibre slurry as shown in Fig 1 comprises of a relatively massive framework which includes uprights (10, 11) and cross-member (12). In use, the uprights (10, 11) are fixed to the ground.
  • the moulding device (1) generally consists of a moulding station for making a wet plant fibre moulded article, and a thermal forming station is positioned at each side of the moulding for drying and shaping of the wet article.
  • the moulding station has an upper transferring chamber (21) being mounted to the cross member (12) of the framework.
  • a slurry tank (4) is aligned vertically at the bottom of the upper transferring chamber (21) for receiving plant fibre slurry via a pipe (not shown).
  • the upper transferring chamber (21) is provided with an upper vacuum platen (22) which has mounted thereon a forming mould (23).
  • the upper platen (22) carries the forming mould (23) which may be a male die are mounted to a moving means to reciprocate the upper transferring chamber (21) towards and away form the slurry tank (4).
  • the moving means is a pneumatic ram (24).
  • Other moving means such as hydraulic ram or electric motor may be applicable for the present invention.
  • the upper transferring chamber (21) reciprocates in a vertical direction only, for the purpose of transferring the wet fibre moulded article from the moulding station (20) to the thermal forming station (30).
  • a perforated moulding tool (5) which is associated with a vacuum means is mounted within the slurry tank (4).
  • the perforated moulding tool (5) is a female die as to match the female forming mould (23) to produce a wet fibre moulded article with constant thickness.
  • a layer of filtering net or sieve is secured onto the contour of the forming mould (23) for the purpose of retaining the plant fibres and allowing the water of the plant fibre slurry to pass through.
  • each side of the moulding station is allocated with one thermal forming station, namely first thermal forming station and second thermal forming station.
  • Both of the forming station comprising an upper thermal chamber (30, 40) and a lower thermal chamber (50, 60).
  • the significance of this feature is that the time required for thermal forming operation is substantially longer than the time required for the moulding operation. Therefore by having the forming station at each side of the moulding station can increase the speed of production.
  • the upper thermal chamber (30, 40) of the respective first and second thermal forming station comprising an upper thermal platen (31, 41) which has mounted thereon a male moulding die (32, 42).
  • the upper thermal platen (31, 41) and the male moulding die (32, 42) are mounted on a pneumatic ram (33, 43).
  • the pneumatic ram (33, 43) is responsible for the vertical reciprocating movement of the upper thermal chamber (30, 40) in the thermal forming station.
  • the lower thermal chamber (50, 60) of the respective first and second thermal forming station is provided with a female moulding die (51, 61).
  • the female moulding die (51, 61) is mounted on a pneumatic shaft (54, 64) which is supported by a supporting frame (55, 65).
  • a conveyor (52, 62) is attached to the outer side of the female moulding die (51, 61) for receiving and loading of the finish plant fibre moulded article released from the male moulding die (32, 42).
  • the pneumatic shaft (54, 64) is responsible for the reciprocating movement of the female moulding die (51, 61) and the conveyor (52, 62) in a horizontal direction only.
  • Each of the platens (22, 31, 41) on the respective chambers (21, 30, 40) are associated with a vacuum system for adhering and releasing of the fibre moulded article from the respective dies (23, 32, 42). Only platens (31, 41) on the respective first and second thermal forming station are provided with heating means for drying and hardening of the wet fibre moulded article form on the dies.
  • the plant fibres are first disintegrated by means of grinding, cutting, chopping or milling.
  • the refined plant fibres are then added with water in a concentrating pond. Agitation is applied to the fibre-water mixture to ensure that the fibres are well dispersed in the water.
  • Chemical pulp may be added to the mixture to increase the hardness of the fibre moulded product. The mixture is continuously agitated until all the added chemical pulp is dissolve and the fibres are uniformly disperse in the water.
  • the fibre content of the mixture ranges from 5% to 80% by weight.
  • Additives such as water resistant agent and oil resistant agent are added to the mixture to give a furnished slurry.
  • the added additives are Food Graded since the plant fibre moulded products are use as food container. Continuous agitation is applied to the furnished slurry to ensure the added additives are uniformly dispersed among the refined fibres.
  • the slurry is diluted with water until the fibre content of the slurry ranges form 0.01% to 1.0% by weight.
  • the diluted plant fibre slurry is pump into the perforated moulding tool (5) which is mounted within the slurry tank (4) of the moulding station by using pumps and pipes. Vacuum is applied to the perforated moulding tool (5) to evacuate the water content of the fibre slurry and form a wet plant fibre moulded article on the filtering net.
  • the pneumatic ram (24) lowered the upper vacuum platen (22) and the forming mould (23) to come into contact with the perforated moulding tool (5).
  • the vacuum on the perforated moulding tool (5) is released and negative pressure is applied to the upper vacuum platen (22) to temporarily adhere the wet moulded article to the forming mould (23).
  • the upper vacuum platen (22) and the forming tool (23) are then elevated and return to its initial position.
  • the lower thermal chamber (50) of the first thermal forming station which consists of female moulding die (51) and the conveyor (52) is travel horizontally to the lower end of the upper forming mould (23) on the moulding station. Then the pneumatic ram (24) of the moulding station lowered the upper forming mould (23) to come into contact with the female moulding die (51) of the first thermal forming station.
  • the upper male moulding die (32) is lowered into contact with lower female moulding die (51). Heat and pressure is applied to the dies (32, 51) so as to reduce the thickness and to dry the wet fibre moulded article.
  • the male moulding die (32) carries the dried and finish moulded article is elevated whereas the lower thermal chamber (50) is travel horizontally until the conveyor (52) is align vertically at the bottom of the male moulding die (32).
  • the dried and finish moulded article is then deposited on the conveyor (52).
  • the releasing of the finish moulded article is effected by applying positive pressure to the male moulding die (32).
  • the finished article is then sent off from the moulding machine (1) by the conveyor (52) after the lower thermal chamber (52) is return to its initial position.
  • the dried moulded article may be subjected to post processing such as trimming and sterilization.
  • the same thermal forming operation is repeated in the second thermal forming station after the wet fibre moulded article is transferred from the moulding station to the second thermal forming station.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Reinforced Plastic Materials (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Paper (AREA)

Abstract

The present invention disclosed an automatic moulding device and a process for manufacturing an moulded article from plant fibre slurry. The present invention comprising at least one thermal forming station located at each side of a moulding station. Each thermal forming station consists of a conveyor to transport the finish-moulded article off from the automatic moulding device. The significance of this feature is that the time required for thermal drying operation is substantially longer than the time required for the moulding operation. Therefore by having the forming station at each side of the moulding station can increase the speed of production.

Description

Device and Manufacturing Process for Forming Articles from Plant Fibre
Field of the Invention
The present invention relates to an automatic machinery, particularly adapted for manufacturing moulded articles from plant fibre slurry, and to process of manufacturing plant fibres moulded article.
Background of the Invention
Plastic is a synthetic polymers made of oil and natural gas. Plastic were introduced less than 100 years ago and quickly become the world's most use material, especially in packaging and containers manufacturing industries. The plastic materials commonly used for article moulding are polypropylene (PP), polystyrene (PS), and polyethylene (PE). However, there are many drawbacks associated with the use of plastic as raw materials for packaging or containers. Plastic is a major part of household waste and is non-biodegradable. It can take hundreds of years to break down in landfill. Plastics generate toxic emissions if incinerated and although some plastics can be recycled, the recycling process in many cases can be more expensive than the original material. Waste plastic litters found in rivers and seas where it is responsible for the deaths of thousands of seabirds, sea mammals and fish.
Recently, paper pulp moulded packaging and containers have starting to replace the plastic products. The pulp moulded products are biodegradable, recyclable, and more environmental friendly. However, the pulp moulded products have several drawbacks. These products are preferably made from recycled pulp obtained from recycled newsprint or other recycled paper. Generally, the paper recycling process involved pulping, screening, de-inking, bleaching and refining, which is costly and energy consuming. Furthermore, various chemicals are used during the recycling process, which may cause environmental pollution if proper controls are not executed.
Fibre bearing material such as rice husk, straws, oil palm empty fruit bunch and frond are abundantly available in Asia country. These fibre bearing materials which are usually being abandoned may be used as raw material to replace paper pulp for making plant fibres moulded packaging and containers. Furthermore, the plant fibres slurry need not high cost of preparation before it is moulded into shape compared to paper pulp. Therefore it would be an advantage to transform the existing paper pulp moulding process to manufacture plant fibre moulded products.
Most of the current plant fibres moulded article forming machine are heavily manual driven and comprising only one thermal-press moulding station. The wet fibre moulded product formed at the forming station needs to be transferred manually together with the attached filtering net to the thermal-press moulding station for drying and shaping. This action may cause destruction to the filtering net. Furthermore, the time require for thermal-pressing operation is substantially longer than the mould forming operation. Therefore it is not practical of having only one thermal-press station in the moulding machine.
Therefore it is an object of the present invention to provide a fully automatic machine for moulding articles from plant fibre slurry.
Another object of the present invention is to provide a plant fibres moulded article forming machine having at least one thermal-press station located at each side of the forming station to increase the production efficiency.
A further object of the present mvention is to increase the speed of conveying operation by having an independent conveyor system attached to the corresponding thermal-press station in the plant fibres moulded article forming machine.
Yet another object of the present invention is to produce diluted plant fibres slurry comprising of water , 0.05% to 1.0% of fibres content, and 0.01% to 30% of food graded water resistant agent and oil resistant agent.
Summary of the Invention
The present mvention relates to an automatic device for producing moulded plant fibre product from plant fibre slurry comprising a moulding station having a moulding means for forming a wet moulded article; at least one thermal forming station positioned at each side of said moulding station in order to dry and shaped said wet moulded article; and characterized in that each thermal forming station is attached with an independent conveyor system whereby the finished plant fibre moulded article produced from each thermal forming station can be sent off from the device efficiently. The moulding station consists of an upper transferring chamber and a lower perforated mould mounted within a slurry tank. The transferring chamber having an upper platen carries a forming mould to receive a wet fibre moulded article form on the lower perforated mould.
The wet fibre moulded article is then transferred from the upper forming mould to the lower thermal moulding die and the upper thermal moulding carried on a upper platen is lowered into contact with the lower thermal moulding die in the thermal forming station.
At this stage the wet fibre moulded article is dried and shaped. The dried finish moulded article is deposited onto a conveyor and sent off from the automatic moulding machine for post processing such as trimming and sterilization.
Brief Description of the Invention
Figure 1 shows a front view of an automatic device for manufacturing plant fibre moulded article from plant fibre slurry.
Detailed Description of the Invention
An automatic moulding device (1) for manufacturing a plant fibre moulded article from plant fibre slurry as shown in Fig 1 comprises of a relatively massive framework which includes uprights (10, 11) and cross-member (12). In use, the uprights (10, 11) are fixed to the ground.
The moulding device (1) generally consists of a moulding station for making a wet plant fibre moulded article, and a thermal forming station is positioned at each side of the moulding for drying and shaping of the wet article.
The moulding station has an upper transferring chamber (21) being mounted to the cross member (12) of the framework. A slurry tank (4) is aligned vertically at the bottom of the upper transferring chamber (21) for receiving plant fibre slurry via a pipe (not shown).
The upper transferring chamber (21) is provided with an upper vacuum platen (22) which has mounted thereon a forming mould (23). The upper platen (22) carries the forming mould (23) which may be a male die are mounted to a moving means to reciprocate the upper transferring chamber (21) towards and away form the slurry tank (4). In a preferred embodiment of the present invention, the moving means is a pneumatic ram (24). Other moving means such as hydraulic ram or electric motor may be applicable for the present invention. The upper transferring chamber (21) reciprocates in a vertical direction only, for the purpose of transferring the wet fibre moulded article from the moulding station (20) to the thermal forming station (30).
A perforated moulding tool (5) which is associated with a vacuum means is mounted within the slurry tank (4). Preferably, the perforated moulding tool (5) is a female die as to match the female forming mould (23) to produce a wet fibre moulded article with constant thickness. A layer of filtering net or sieve is secured onto the contour of the forming mould (23) for the purpose of retaining the plant fibres and allowing the water of the plant fibre slurry to pass through.
At each side of the moulding station is allocated with one thermal forming station, namely first thermal forming station and second thermal forming station. Both of the forming station comprising an upper thermal chamber (30, 40) and a lower thermal chamber (50, 60). The significance of this feature is that the time required for thermal forming operation is substantially longer than the time required for the moulding operation. Therefore by having the forming station at each side of the moulding station can increase the speed of production.
The upper thermal chamber (30, 40) of the respective first and second thermal forming station comprising an upper thermal platen (31, 41) which has mounted thereon a male moulding die (32, 42). The upper thermal platen (31, 41) and the male moulding die (32, 42) are mounted on a pneumatic ram (33, 43). The pneumatic ram (33, 43) is responsible for the vertical reciprocating movement of the upper thermal chamber (30, 40) in the thermal forming station.
The lower thermal chamber (50, 60) of the respective first and second thermal forming station is provided with a female moulding die (51, 61). The female moulding die (51, 61) is mounted on a pneumatic shaft (54, 64) which is supported by a supporting frame (55, 65). A conveyor (52, 62) is attached to the outer side of the female moulding die (51, 61) for receiving and loading of the finish plant fibre moulded article released from the male moulding die (32, 42). The pneumatic shaft (54, 64) is responsible for the reciprocating movement of the female moulding die (51, 61) and the conveyor (52, 62) in a horizontal direction only.
Each of the platens (22, 31, 41) on the respective chambers (21, 30, 40) are associated with a vacuum system for adhering and releasing of the fibre moulded article from the respective dies (23, 32, 42). Only platens (31, 41) on the respective first and second thermal forming station are provided with heating means for drying and hardening of the wet fibre moulded article form on the dies.
The manufacturing process of the plant fibre moulded article by using the present invention may now described as follows.
The plant fibres are first disintegrated by means of grinding, cutting, chopping or milling. The refined plant fibres are then added with water in a concentrating pond. Agitation is applied to the fibre-water mixture to ensure that the fibres are well dispersed in the water. Chemical pulp may be added to the mixture to increase the hardness of the fibre moulded product. The mixture is continuously agitated until all the added chemical pulp is dissolve and the fibres are uniformly disperse in the water. The fibre content of the mixture ranges from 5% to 80% by weight.
Next the mixture is transferred to a diluting pond whereby more water is added. Additives such as water resistant agent and oil resistant agent are added to the mixture to give a furnished slurry. In the preferred embodiment of the present invention, the added additives are Food Graded since the plant fibre moulded products are use as food container. Continuous agitation is applied to the furnished slurry to ensure the added additives are uniformly dispersed among the refined fibres. The slurry is diluted with water until the fibre content of the slurry ranges form 0.01% to 1.0% by weight.
The diluted plant fibre slurry is pump into the perforated moulding tool (5) which is mounted within the slurry tank (4) of the moulding station by using pumps and pipes. Vacuum is applied to the perforated moulding tool (5) to evacuate the water content of the fibre slurry and form a wet plant fibre moulded article on the filtering net.
At a stage after the wet plant fibre moulded article is formed, the pneumatic ram (24) lowered the upper vacuum platen (22) and the forming mould (23) to come into contact with the perforated moulding tool (5). At this stage the vacuum on the perforated moulding tool (5) is released and negative pressure is applied to the upper vacuum platen (22) to temporarily adhere the wet moulded article to the forming mould (23).
The upper vacuum platen (22) and the forming tool (23) are then elevated and return to its initial position. The lower thermal chamber (50) of the first thermal forming station which consists of female moulding die (51) and the conveyor (52) is travel horizontally to the lower end of the upper forming mould (23) on the moulding station. Then the pneumatic ram (24) of the moulding station lowered the upper forming mould (23) to come into contact with the female moulding die (51) of the first thermal forming station.
At this stage, positive pressure is applied to the upper forming mould (23) by vacuum means to release the wet moulded article from the forming mould (23) to the female moulding die (51). At the same time, vacuum is applied to the female moulding die (51) to temporarily adhere the wet moulded article. Once lower thermal chamber (50) is return to the thermal forming station, the pneumatic ram (24) of the moulding station is then lowered the upper vacuum platen (22) and the forming mould (23) to the slurry tank (4) to begin the subsequent moulding operation. The newly formed wet fibre moulded article is then transferred to the second thermal forming station.
In the first thermal forming station, the upper male moulding die (32) is lowered into contact with lower female moulding die (51). Heat and pressure is applied to the dies (32, 51) so as to reduce the thickness and to dry the wet fibre moulded article.
After the thermal forming operation is completed, the male moulding die (32) carries the dried and finish moulded article is elevated whereas the lower thermal chamber (50) is travel horizontally until the conveyor (52) is align vertically at the bottom of the male moulding die (32). The dried and finish moulded article is then deposited on the conveyor (52). The releasing of the finish moulded article is effected by applying positive pressure to the male moulding die (32). The finished article is then sent off from the moulding machine (1) by the conveyor (52) after the lower thermal chamber (52) is return to its initial position. The dried moulded article may be subjected to post processing such as trimming and sterilization.
The same thermal forming operation is repeated in the second thermal forming station after the wet fibre moulded article is transferred from the moulding station to the second thermal forming station.
Thus, there has been disclosed herein an automatic device and manufacturing process of making moulded article from the plant fibre slurry. It will be apparent to those skilled in the art that various modifications and variation can be made in the system of the present invention without departing from the scope or spirit of the invention.

Claims

Claims
1. An automatic device for producing moulded plant fibre product from plant fibre slurry comprising a moulding station having a moulding means for forming a wet moulded article; at least one thermal-press forming station positioned at each side of said moulding station in order to dry and shaped said wet moulded article; and characterized in that each thennal forming station is attached at its outer end with an independent conveyor and said wet moulded article form on the forming station is transferred alternatively to the respective thermal forming station.
2. The automatic device as claimed in claim 1, wherein said moulding means comprising of an upper transferring chamber and a lower perforated moulding tool.
3. The automatic device as claimed in claim 2, wherein said upper transferring chamber consists of a platen and an upper forming mould, said upper forming mould is carried by said platen.
4. The automatic device as claimed in claim 2, wherein said upper transferring chamber is reciprocable towards and away from said lower perforated moulding tool by a moving means.
5. The automatic device as claimed in claim 4, wherein said moving means includes pneumatic and / or hydraulic ram.
6. The automatic device as claimed in claim 5, wherein said moving means is a pneumatic ram.
7. The automatic device as claimed in any claim 1 to claim 4, wherein said upper forming mould and said lower perforated moulding tool are matchable to produce said wet fibre moulded article having constant thickness.
8. The automatic device as claimed in claim 7, wherein at least one layer of filtering net is secured onto said perforated moulding tool retaining the plant fibre and to allow water of the fibre slurry to pass through during moulding process.
9. The automatic device as claimed in claim 8 further including means for supplying vacuum to the perforated moulding tool for removal of water from plant fibre slurry.
10. The automatic device as claimed in claim 9 further including means for transferring said wet moulded article formed on the perforated moulding tool to said upper forming mould and to be carried by said upper forming mould to said thermal forming station.
11. The automatic device as claimed in claim 10, wherein said transferring means comprises a vacuum pump.
12. The automatic device as claimed in claim 10, wherein said thermal forming station comprising of an upper thermal chamber and a lower thermal chamber.
13. The automatic device as claimed in claim 12, wherein said upper thermal chamber consists of a platen and an upper moulding die, said upper moulding die is carried by said platen.
14. The automatic device as claimed in claim 13, wherein said platen is associated with a vacuum system and a heating means.
15. The automatic device as claimed in claim 13, wherein said upper thermal chamber is reciprocable in a vertical direction.
16. The automatic device as claimed in claim 12, wherein said lower thermal chamber comprises a lower moulding die, a conveyor and a pneumatic shaft.
17. The automatic device as claimed in claim 16, wherein said conveyor is attached to the outer side of said lower moulding die, and said lower moulding die is mounted on said pneumatic shaft.
18. The automatic device as claimed in claim 16, wherein said lower thermal chamber is reciprocable in a horizontal direction.
19. A process for manufacturing plant fibre moulded article from plant fibre slurry comprising: disintegrating coarse plant fibres into refined fibres; mixing the refined fibres with water and chemical pulp to produce a concentrated mixture; diluting the concentrated mixture with water and additives to produce a furnished diluted fibre slurry; and moulding an article from plant fibre slurry through moulding and thermal forming process.
20. The manufacturing process as claimed in claim 19, wherein said plant fibres are disintegrated by means of grinding, cutting, chopping or milling.
21. The manufacturing process as claimed in claim 19, wherein said concentrated mixture having fibres content ranges 5% to 80%o by weight.
22. The manufacturing process as claimed in claim 19, wherein said additives includes Food Graded water resistant agents and oil resistant agents.
23. The manufacturing process as claimed in claim 19, wherein said diluted fibre slurry contains 0.01% to 1%) by weight of fibre content.
24. The manufacturing process as claimed in claim 19 further comprising post processing of said fibre moulded article.
25. The manufacturing process as claimed in claim 24, wherein said post processing includes trimming and sterilization.
26. The manufacturing process as claimed in claim 19, wherein said moulding process further includes pouring of said fibre slurry into said perforated moulding tool to form a wet fibre moulded article.
27. The manufacturing process as claimed in claim 26, wherein vacuum is applied to said perforated moulding tool to evacuate water from said plant fibre slurry and to form a layer of evenly distributed plant fibre slurry moulded article.
28. The manufacturing process as claimed in claim 26, wherein said wet fibre moulded article is thermally dried and shaped through thermal forming process.
29. The manufacturing process as claimed in claim 19, wherein said moulding and thermal forming process is conducted in an automatic moulding device as claimed in any claim 1 to claim 18.
PCT/SG2004/000229 2003-08-01 2004-07-30 Device and manufacturing process for forming articles from plant fibre WO2005012640A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MYPI20032920 2003-08-01
MYPI20032920 MY137949A (en) 2003-08-01 2003-08-01 Device and manufacturing process for forming articles from plant fibre

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WO2005012640A1 true WO2005012640A1 (en) 2005-02-10

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US9663898B2 (en) 2013-05-09 2017-05-30 Paul Zhang Automatic multi-station integrated equipment and method for forming waste-paper-based packaging products
EP2937462A4 (en) * 2012-12-19 2017-06-14 Eurasia EP Machinery Co. Ltd. Full-automatic manufacturing method of plant fiber molded product, and multifunctional machine for molding and trimming
US20170197334A1 (en) * 2016-01-12 2017-07-13 Golden Arrow Priinting Co.,Ltd. Double molded pulp molding machine
WO2017165986A1 (en) * 2016-03-28 2017-10-05 诚宗环保科技(上海)有限公司 Automatic molding machine for molded product, manufacturing method, and finished product
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US9976262B2 (en) * 2014-12-12 2018-05-22 Golden Arrow Painting Co., Ltd. Pulp molding machine, pulp molding process and paper-shaped article made thereby
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CN108589432A (en) * 2018-05-10 2018-09-28 韶关市宏乾智能装备科技有限公司 Ecological vegetable fibre tableware automatic production line and its production method
CN108973217A (en) * 2018-06-12 2018-12-11 杨杰 A kind of corrugated case bottom material drying compression set
CN110000889A (en) * 2019-05-05 2019-07-12 浙江众鑫环保科技有限公司 A kind of plant fiber environment-protecting product production general assembly
CN111168764A (en) * 2020-02-15 2020-05-19 杭州欧亚机械制造有限公司 Edge cutting method and edge cutting device for plant fiber molded product
WO2020132776A1 (en) * 2018-12-27 2020-07-02 常州市诚鑫环保科技有限公司 Overturning pulp-suction automatic forming machine for molded pulp products and manufacturing method
WO2020227404A1 (en) * 2019-05-06 2020-11-12 Zume, Inc. Molded fiber part production lines having high output and reduced cycle times
CN112813736A (en) * 2019-11-18 2021-05-18 潘耀华 Robot forming flexible production line and forming method for paper pulp molded product
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EP2937462A4 (en) * 2012-12-19 2017-06-14 Eurasia EP Machinery Co. Ltd. Full-automatic manufacturing method of plant fiber molded product, and multifunctional machine for molding and trimming
US9663898B2 (en) 2013-05-09 2017-05-30 Paul Zhang Automatic multi-station integrated equipment and method for forming waste-paper-based packaging products
US20160168793A1 (en) * 2014-12-12 2016-06-16 Golden Arrow Printing Co., Ltd. Pulp molding machine and paper-shaped article made thereby
US9951478B2 (en) * 2014-12-12 2018-04-24 Golden Arrow Printing Co., Ltd. Pulp molding machine and paper-shaped article made thereby
US9976262B2 (en) * 2014-12-12 2018-05-22 Golden Arrow Painting Co., Ltd. Pulp molding machine, pulp molding process and paper-shaped article made thereby
CN105058754A (en) * 2015-09-02 2015-11-18 广运机电(苏州)有限公司 Automatic pressing die machine with overturning mechanism
US20170197334A1 (en) * 2016-01-12 2017-07-13 Golden Arrow Priinting Co.,Ltd. Double molded pulp molding machine
WO2017165986A1 (en) * 2016-03-28 2017-10-05 诚宗环保科技(上海)有限公司 Automatic molding machine for molded product, manufacturing method, and finished product
US11261569B2 (en) 2016-03-28 2022-03-01 Deluxe Environmental Technology (Shanghai) Co., Ltd. Automatic molding machine for molded product, manufacturing method, and finished product
CN107447596A (en) * 2017-07-19 2017-12-08 佛山浩博环保制品有限公司 A kind of two section type product line of pulp molding
CN108589432A (en) * 2018-05-10 2018-09-28 韶关市宏乾智能装备科技有限公司 Ecological vegetable fibre tableware automatic production line and its production method
CN108547181A (en) * 2018-05-21 2018-09-18 广东科捷龙机器人有限公司 Paper matrix fully-automatic intelligent moulding process
CN108973217A (en) * 2018-06-12 2018-12-11 杨杰 A kind of corrugated case bottom material drying compression set
WO2020132776A1 (en) * 2018-12-27 2020-07-02 常州市诚鑫环保科技有限公司 Overturning pulp-suction automatic forming machine for molded pulp products and manufacturing method
CN110000889A (en) * 2019-05-05 2019-07-12 浙江众鑫环保科技有限公司 A kind of plant fiber environment-protecting product production general assembly
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WO2020227404A1 (en) * 2019-05-06 2020-11-12 Zume, Inc. Molded fiber part production lines having high output and reduced cycle times
US11738485B2 (en) 2019-11-11 2023-08-29 Zume, Inc. Molded fiber product production line
CN112813736A (en) * 2019-11-18 2021-05-18 潘耀华 Robot forming flexible production line and forming method for paper pulp molded product
WO2021098623A1 (en) * 2019-11-18 2021-05-27 浙江舒康科技有限公司 Robotic forming flexible production line and forming method for pulp molded products
CN111168764A (en) * 2020-02-15 2020-05-19 杭州欧亚机械制造有限公司 Edge cutting method and edge cutting device for plant fiber molded product
KR102578575B1 (en) * 2022-11-02 2023-09-15 주식회사 잎성 Apparatus for manufacturing pulp mold

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