WO2007032590A1

WO2007032590A1 - Apparatus for manufacturing naturally decomposing disposable pollution-free tableware

Info

Publication number: WO2007032590A1
Application number: PCT/KR2006/001904
Authority: WO
Inventors: Yong-Duk Kwon
Original assignee: Sajaco Co., Ltd.
Priority date: 2005-09-13
Filing date: 2006-05-22
Publication date: 2007-03-22
Also published as: KR100578187B1

Abstract

Disclosed therein is an apparatus for manufacturing naturally decomposing disposable pollution-free tableware that is completely decomposed and decayed after use so as not to cause problems, such as environmental contamination and separate waste collection. The apparatus includes: a high-speed mixer (31) for mixing natural raw materials; a hopper (32) for receiving the natural raw materials from the high-speed mixer; a number of screw feeders (33) for supplying the natural raw materials; a material supply unit (36) for repeatedly conveying the materials to a forming press; the forming press having an upper mold and a lower mold for molding the natural raw materials; a product-drawing device (38) entering into the forming press, absorbing and upwardly lifting molded tablewares by vacuum absorbing means, and setting down the tablewares on a conveyer by removing a vacuum state; the conveyer (311) for conveying the tablewares; a trimming and blowing unit (41) for finishing edges of the tableware which is being conveyed by the conveyer and for removing dust stained on the tableware; a sterilizing unit (42) for sterilizing the tableware conveyed by the conveyer; and a packing unit (43) for packing the finally conveyed by the conveyer.

Description

APPARATUS FOR MANUFACTURING NATURALLY DECOMPOSING DISPOSABLE POLLUTION-FREE TABLEWARE

Technical Field

[1] The present invention relates to an apparatus for manufacturing naturally decomposing disposable pollution-free tableware, and more particularly, to an apparatus for manufacturing disposable tableware, which can be utilized as barnyard manure or feed for pigs or cows after being completely naturally decomposed and decayed, or recycled into industrial planting cups or construction materials for interior panels after being collected together after use since synthetic additives are never used in the disposable tableware, in mass production using a compression molding machine.

[2]

Background Art

[3] With the development of general industrial economy, the living culture of human beings becomes complex and various, and thus various shapes of disposable tablewares that can provide time saving have been produced and used. These disposable tablewares include disposable supplies, such as spoons, cups, dishes and lunch packages.

[4] These disposable tablewares are generally made of synthetic resin (polystyrene, etc) or pulp.

[5] However, the products made of synthetic resin contain a component harmful for the human body and become the main cause of environmental contamination due to their disposal problem after use according to an increase in their use.

[6] Furthermore, the paper products made of pulp are generally prepared using imported pulp, and thus cause an economical problem according to pulp importation, an environmental degradation problem according to the development of a forest for producing pulp, and an environmental pollution problem according to the use of additives during the production of the paper products. Also, even if recycled pulp is used in place of pulp, the problem of secondary environmental contamination, caused by energy for pulp regeneration and the use and disposal of additives in various regeneration processes, will be occur. Also, in order to solve the structural problem of the pulp material, the surface thereof is coated with a waterproofing agent that is also the main cause of environmental contamination and imposes limitations on the use of the tableware made of this pulp material. Also, restaurants that use this tableware suffer inconvenience in that the tableware must be separately collected after use.

[7] Therefore, shops and stores where use such tablewares must separately collect them after use.

[8] The reason why the use of the above-mentioned disposable tablewares is restricted is that most of the prior disposable tablewares are not naturally decomposed so as to contaminate soil when simply buried in soil and discharges environmental pollutants, such as dioxine, when incinerated.

[9] Recently, to solve the above problems, naturally decomposing disposable tablewares are produced, but an apparatus for manufacturing such tablewares cannot manufacture the tableware in mass production since it manufactures the tablewares by an injection-molding method or a forming press device, which can manufacture tablewares only in a small quantity.

[10] Furthermore, the conventional apparatus for manufacturing tablewares using the forming press device has another problem in that it is impossible to supply raw materials of a fixed quantity into the forming press device in multiple.

[H]

Disclosure of Invention Technical Problem

[12] Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide an apparatus for manufacturing naturally decomposing disposable pollution- free tableware that supplies naturally decomposed and decayed eco-friendly materials of fixed quantity into a mold in multiple and compresses and molds them at high temperature at a time, can maintain the general shape or function of a disposable tableware without the use of a separate chemical additive, and is completely decomposed after use so as not to cause problems, such as environmental contamination and separate waste collection.

[13]

Technical Solution

[14] To accomplish the above object, according to the present invention, there is provided an apparatus for manufacturing naturally decomposing disposable pollution- free tableware comprising: a high-speed mixer for mixing natural raw materials pulverized into fine powders; a hopper for receiving the natural raw materials from one line of a number of vacuum pump lines mounted below the high-speed mixer; a number of screw feeders for supplying mixture supplied to the hopper to a material supply unit in a fixed quantity; the material supply unit located below the screw feeder to be simultaneously supplied with the natural raw materials of fixed quantity, the material supply unit repeatedly conveying the materials to a forming press; the forming press having an upper mold and a lower mold for molding tablewares by receiving the natural raw materials from the material supply unit; a product-drawing device entering into the forming press, absorbing and upwardly lifting molded tablewares by vacuum absorbing means, and setting down the tablewares on a conveyer by removing a vacuum state; the conveyer for conveying the tablewares drawn by the product- drawing device; a trimming and blowing unit for finishing edges of the tableware which is being conveyed by the conveyer and for removing dust stained on the tableware; a sterilizing unit for sterilizing the tableware conveyed by the conveyer; and a packing unit for packing the finally conveyed by the conveyer.

[15] A vacuum pump located above the hopper provides suction force to the vacuum pump lines.

[16] The lower mold includes a number of molding sections molded according to shapes of the tablewares and arranged in multiple, the tableware being made of natural raw materials of fixed quantity, and the upper molds are formed symmetrically to the shape of the molding sections of the lower mold and arranged in multiple.

[17] The upper mold and the lower mold respectively have heating devices for heating them to temperature of 160~180°C, and the upper mold or the lower mold goes upwardly and downwardly in such a way that pressure of 800-1,000 ton is applied to the mold by pressurization of the forming press. Only when temperature and pressure within the range of the above numerical values are applied to the tablewares, the tablewares can bed sintered and magnetized in such a way as to have a property required in the present invention.

[18] The material supply unit is operated in a cartridge type in such a way as to supply natural raw materials of fixed quantity to the lower mold of the forming press by the hydraulic device in multiple by repeatedly conveying the natural materials above the lower mold, and includes: a number of storage parts arranged in multiple for receiving the natural raw materials of fixed quantity supplied from a number of the screw feeders mounted below the hopper; and stopping parts opened and closed by hydraulically or pneumatically conveying means stopping the lower ends of the storage parts.

[19] The conveying means for conveying the materials to the forming press of the product-drawing device moves forwardly and backwardly in one direction by a hydraulic or pneumatic cable, and enters into the forming press. Alternatively, the conveying means for conveying the materials to the forming press of the product- drawing device includes a robot arm having an arm variable in length, the robot arm entering into the forming press after an axial rotation between the forming press and the conveyer. As described above, the conveying means can be properly selected according to an entry speed and security of space.

[20] Advantageous Effects

[21] The present invention can produce disposable tablewares in mass production since the hopper and the material supply unit simultaneously supply the raw materials in fixed quantity in multiple, and produce tablewares where foods can be done without burning even though the disposable tablewares are put in the microwave oven since the tablewares are magnetized due to compressive molding at high temperature. In the case where the disposable tablewares produced by the present invention are buried under the ground after use, they can be used as barnyard manure since they are decomposed 100 percent by water and humidity after a lapse of a predetermined time period, and used as feed for livestock even though they are wasted together with food garbage without separate collection. Moreover, the tablewares produced by the present invention can be dissolved and buried under the ground without environmental pollution after the lapse of the predetermined time period even though they are wasted in mountains or public gardens.

[22]

Brief Description of the Drawings

[23] FlG. 1 is an exemplary plan view of an apparatus for manufacturing naturally decomposing disposable pollution-free tableware according to the present invention,

[24] FlG. 2 is an exemplary front view of FlG. 1,

[25] FlG. 3 is a sectional view taken along the line of A-A of FlG. 1,

[26] FlG. 4 is a sectional view taken along the line of B-B of FlG. 1,

[27] FlG. 5 is a sectional view taken along the line of C-C of FlG. 1, and

[28] FlG. 6 is a view showing a material supply unit according to a preferred embodiment of the present invention.

[29]

[30] <Explanation of essential reference numerals in drawings>

[31] (11): forming press(12): hydraulic supplier

[32] (13): hydraulic pipe(21): upper mold

[33] (22): lower mold(31) high-speed mixer

[34] (32): hopper(33) screw feeder

[35] (34): cable(36) material supply unit

[36] (37): work table(38): product-drawing device

[37] (39): vacuum pump(41): trimming and blowing unit

[38] (42): sterilizing unit(43) packing unit

[39] (50): control system(60): mold carriage

[40] (70): pallet(80): hoist

[41] (311): conveyer(312): deck and ladder [42] (391): vacuum pump line

Best Mode for Carrying Out the Invention

[43] Reference will now be made in detail to the preferred embodiment of the present invention, examples of which are illustrated in the accompanying drawings.

[44] FlG. 1 is an exemplary plan view of an apparatus for manufacturing naturally decomposing disposable pollution-free tableware according to the present invention, FlG. 2 is an exemplary front view of FlG. 1, FlG. 3 is a sectional view taken along the line of A-A of FlG. 1, FlG. 4 is a sectional view taken along the line of B-B of FlG. 1, and FlG. 5 is a sectional view taken along the line of C-C of FlG. 1. In detail, a process including the step of putting natural raw materials to the step of packing products will be described as follows.

[45] First, the raw materials used for molding in the present invention are mixed in a high-speed mixer 31. At this time, the natural materials, which will be mixed, are put into the high-speed mixer 31 through a deck and ladder 312.

[46] The natural raw materials, which are put and mixed in the high-speed mixer, are as follows.

[47] The inventive tableware is made of pollution-free composition made of only materials that are completely naturally decomposed. Disposable tableware made of this composition is completely naturally biodegraded in a natural atmosphere so as to recycle as compost. The composition used in the present invention comprises grain husks comprising straws (straws of rice, wheat, barley, etc.) and chaff (including rice chaff); corn powder (starch powder such as corn starch); a paper mulberry bark (the material of Korean paper); moss; and mixed grain powder (rice powder, wheat flour, potato starch, glutinous rice powder, and food powder compound). The concrete composition ratio is as follows. The content of grain husks, such as straws (straws of rice, wheat, barley, etc.) and chaff (including rice chaff) is 1-30 wt%, the content of corn powder (starch powder such as corn starch) is 1-30 wt%, the content of a paper mulberry bark (the material of Korean paper) is 1-10 wt%, the content of moss is 1-10 wt%, and the content of mixed grain powder is 30-96 wt%. The concrete composition ratio of mixed grain powder is as follows. The content of wheat flour is 10-15 wt%, the content of potato starch is 1-20 wt%, the content of glutinous rice powder is 5-13 wt%, the content of rice powder is 5-12 wt%, and the remnant is food powder.

[48] When the ingredients are supplied into the high-speed mixer 31 through the deck and ladder 312 and mixed together after being pulverized into molecules, the mixture is supplied to a hopper 32 through one line of a number of vacuum pump lines 391 mounted beneath the high-speed mixer.

[49] At this time, suction force of the vacuum pump lines is provided by a vacuum pump 39 located above the upper portion of the hopper 32.

[50] The mixture supplied to the hopper 32 is arranged and charged into storage parts of a material supply unit 36 in fixed quantity in multiple by a number of screw feeders 33.

[51] The material supply unit 36 includes cartridges inserted into a number of the storage parts in which the natural raw materials supplied from the hopper 32 are simultaneously arranged in multiple. Therefore, the material supply unit 36 supplies the mixture, which is repeatedly conveyed to a forming press 11 by hydraulic or pneumatic conveying means, from the cartridge to a lower mold 22, and then, returns to its original position to be provided with new materials.

[52] When the natural raw materials are conveyed into the lower mold of the forming press 11 from the material supply unit 36, a shape of the tableware is formed according to shapes of the lower mold 22 and an upper mold 21 after the lower mold 22 rises. The mold is selectively replaceable according to the shapes of the finished tablewares. Moreover, the upper mold and the lower mold according to the present invention can simultaneously mold a number of tablewares.

[53] The upper mold and the lower mold are all heated to high temperature by a heating device (not shown), and then, one of them is compressed with a weight of 800 ton ~ 1,000 ton to compressively mold the tablewares. The tablewares are molded and formed due to sintering of powder by the compressive mold. According to circumstances, the lower mold is raised or the upper mold is dropped.

[54] The lower mold includes a number of molding sections molded according to shapes of the tablewares, which are made of natural raw materials of fixed quantity, and arranged in multiple and the upper molds are arranged in multiple and formed symmetrically to the shape of the molding sections of the lower mold.

[55] When the molding is completed after compression at high temperature for a predetermined time period, the lower mold falls.

[56] If the lower mold or the upper mold is worn or it is necessary to replace the lower mold or the upper mold with new one, the lower mold or the upper mold is replaced after a deadweight is put on a pallet 70 located on a mold carriage 60, which is located on a work table 34 shown in FIGS. 3 and 4 and has a number of rollers, using a hoist 80. Empty spaces located at the left of the mold carriage 60 shown in FIG. 1 are to convey the work table, the mold carriage and the pallet.

[57] When the molding is finished, a product-drawing device 38 moving by a hydraulic or pneumatic cable 34 advances into the forming press 11 in such a way that vacuum absorbing means is located above the tableware. After that, the vacuum absorbing means lowers vertically, and then, absorbs the upper surface of the tableware and lifts the tableware upwardly. After that, the vacuum absorbing means moves the tableware onto a conveyer 311, and then, removes the vacuum state formed between the tableware and the absorbing means.

[58] Not shown in the drawings, but the product-drawing device 38 may be a multi-axis

(articulated) robot arm which is well-known. Compared with the product-drawing device reciprocating only in a horizontal direction by the hydraulic or pneumatic cable, such robot arm has an advantage in that it can reduce work time period and provide effective utilization of space.

[59] The configuration and operation of the robot arm will be described in brief. Like the prior art robot arm, the robot arm used in the present invention is mounted on the apparatus according to the present invention after a central rotary shaft is set in such a way that the robot arm reciprocates between the forming press and the conveyer. Hereinafter, a general operation of the robot arm will be described. The robot arm picks up the tableware from the forming press, and puts down the tableware on the conveyer. After that, the robot arm is rotated to enter into the forming press 11 while the length of the robot arm is reduced to secure a work space, and after the robot arm enters into the forming press 11, a number of vacuum absorbing means mounted at an end of the robot arm drop downwardly and lift a number of the tablewares after absorbing the upper surfaces of the tablewares. After that, the robot arm is moved above the conveyer while the length of the robot arm is varied, and releases the vacuum to puts down the tablewares on the conveyer. The above process is repeated.

[60] The robot arm may have any one of well-known configurations of robot arms, if the configuration allows that the robot arm conducts the progress of absorbing tablewares in vacuum state, lifting them upwardly, and conveying them to the conveyer. The technical scope of the present invention is not the configuration of the robot arm but an organic connection for achieving a rapid performance of the product-drawing device by applying such means to the present invention.

[61] The conveyed tablewares pass through a trimming and blowing unit 41 for finishing edges of the tablewares and removing dust from the tablewares, a sterilizing unit 42 for sterilizing the tablewares, and a packing unit 43 for packing the tablewares finally conveyed by the conveyer belt in order, and then shipped.

[62] According to the present invention, a number of the high-speed mixers are mounted at the same time, a number of vacuum pump lines are respectively supplied from the high-speed mixers to a number of the hoppers, each hopper divides natural raw material of fixed quantity into composition numbers and supplies to the material supply unit having the cartridge type, and the material supply units are arranged on the storage parts for producing a number of the tablewares.

[63] The unexplained reference numeral 12 in FIGS. 1 to 5 designates an oil pressure supplier installed outside a building for supplying oil pressure, and the reference numeral 50 designates a control system for controlling units of the present invention. [64] FlG. 6 shows the material supply unit of the cartridge type according to a preferred embodiment of the present invention. The material supply unit 36 is operated in a cartridge type in such a way as to repeatedly convey natural raw materials of fixed quantity over the lower mold of the forming press 11 by the hydraulic device so that natural raw materials of fixed quantity can be supplied to the lower mold in multiple, and the cartridge type material supply unit includes: a number of storage parts arranged in multiple for receiving the natural raw materials of fixed quantity from a number of the screw feeders mounted below the hopper; and stopping parts stopping the lower ends of the storage parts and opened and closed by hydraulically or pneumatically conveying means.

[65] When each storage part of the material supply unit is located at a fixed position, the hopper stopping part located below the storage part is opened, and then, the screw feeder supplies materials of fixed quantity into each storage part. After that, the material supply unit conveys the materials to the forming press 11 by the hydraulic or pneumatic conveyer, and then supplies the materials of fixed quantity to the lower mold after opening the stopper stopping the lower portion thereof. After that, the material supply unit is returned to the hopper, and repeats the material supplying process.

[66] Hereinafter, a compressively molding and manufacturing method using the forming press will be described.

[67] Grain husks, such as straws {(straws of rice, wheat, barley, etc.) and chaff

(including rice chaff)} of 1-30 wt%, corn powder (starch powder such as corn starch) of 1-30 wt%, a paper mulberry bark (the material of Korean paper) of 1-10 wt%, moss of 1-10 wt%, and mixed grain powder (wheat flour of 10-15 wt%, potato starch of 1-20 wt%, glutinous rice powder of 5-13 wt%, rice powder of 5-12 wt%, and food powder) of 30-96 wt%, which are the ingredients of the composition used in the present invention, are selected properly. Then, each of the components is finely pulverized and the powders of the components are mixed with each other. The mixture is subjected to compression molding with a press so as to prepare the disposable tableware. The concrete manufacturing method of the tableware is as follows.

[68] In the present invention, the natural raw materials are mixed in a high-speed mixer in the molding section of a mold (lower mold), which has been heated to 160-180°C and placed on the forming press of 800-1,000 ton. The mixture is transferred and stored in a hopper and fed into a material supply unit by the rotation of a screw feeder. Then, the mixture is metered and fed. As the mold, a mold that can produce several products at the same time can be used.

[69] The reason for the limitation of the temperature is that, if the temperature is below the lower limit of the range, sufficient molding will not be achieved, and if it is above the upper limit of the range, the natural components will be baked.

[70] The total compression molding in the forming press is performed by pressing the powder mixture with the 800-1,000 ton forming press at a temperature of 160-180°C under high pressure. Thus, disposable tablewares are molded in a form having an opening at the upper portion. Only if the condition within this numerical range is satisfied, a magnetization reaction in the inventive tableware will occur so that the content in the tableware will be stably cooked without burning or explosion in a microwave oven, etc.

[71] Then, the molded tableware is taken out using a product-drawing device and moved with a conveyor. Then, the bug of the molded tableware being moved with the conveyor is trimmed with the sand paper of a trimming unit. The trimmed tableware is blown with air in an air blowing unit to remove dust covered on the tableware.

[72] Then, the tableware is subjected to a sterilization process.

[73] Then, the sterilized tableware is packaged and shipped.

[74] The product-drawing device takes the completely molded tablewares out, and moves them to the conveyer.

[75] After that, an improperly molded portion (bug) of the molded tableware, which is being conveyed on the conveyer, is finished by sand paper of the trimming unit.

[76] After that, the air blowing unit finishes the tableware using air, and removes dust stained on the tableware.

[77] The tableware is sterilized.

[78] After that, the tableware is shipped after being packed.

[79] In the case where the manufactured tableware is in the same size as the conventional paper cup, the present invention can mold and manufacture 81 tablewares in one mold at once, and in the case where the tableware is in large volume like a polystyrene foam noodle cup, the present invention can mold and manufacture 12-16 tablewares at once. Therefore, the present invention can produce one hundred million cups or thirty million noodle cups yearly.

[80] For instance, features of the tableware are determined according to a composition ratio of the natural raw materials. By contrast with the natural raw materials of 100kg in the entire weight, rice chaff of 30 wt%, corn powder of 30 wt%, a paper mulberry bark of 5 wt%, moss of 5 wt%, and mixed grain powder of 30 wt% (wheat flour of 15 wt%, potato starch of 15 wt%, glutinous rice powder of 5 wt%, rice powder of 5 wt%, and food powder of 60 wt%) are supplied from the hopper to the mold heated to 180°C, and mixed in the high-speed mixer. The mixed natural raw materials are supplied to the feeder, and then compressively molded in the forming press for 0.4 minutes. The disposable tableware manufactured according to the above processes is very strong, and has color similar with the color of rice chaff. After use, the disposable tableware is completely decomposed and decayed within 3 - 4 months in a natural atmosphere so as to be used as barnyard manure. Moreover, if the composition ratio of the mixed grain powder is increased, the disposable tableware gets stronger, can be used as a water container for a long time, and can be completely naturally decomposed within about one year.

[81] Additionally, if the composition ratio of the paper mulberry bark is increased, the disposable tableware is deteriorated in hardness, but can maintain wave resistance since it is little fragile due to its flexible property.

[82] Therefore, the tablewares produced by the present invention are multi-purpose green tablewares, which can be used semi-permanently if they are not exposed to the open air, namely, if they are dehumidified after use indoor.

[83] The tablewares are not damaged even though they fall from a height of Im 50cm, which is the average height for work, and are not harmful to human body since they are made of natural raw materials directly related with foods.

[84] While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.

[85]

Industrial Applicability

[86] As described above, the present invention can produce disposable tablewares in mass production since the hopper and the material supply unit simultaneously supply the raw materials in fixed quantity in multiple, and produce tablewares where foods can be done without burning even though the disposable tablewares are put in the microwave oven since the tablewares are magnetized due to compressive molding at high temperature. In the case where the disposable tablewares produced by the present invention are buried under the ground after use, they can be used as barnyard manure since they are decomposed 100 percent by water and humidity after a lapse of a predetermined time period, and used as feed for livestock even though they are wasted together with food garbage without separate collection. Moreover, the tablewares produced by the present invention can be dissolved and buried under the ground without environmental pollution after the lapse of the predetermined time period even though they are wasted in mountains or public gardens.

Claims

[1] An apparatus for manufacturing naturally decomposing disposable pollution-free tableware comprising: a high-speed mixer (31) for mixing natural raw materials pulverized into fine powders; a hopper (32) for receiving the natural raw materials from one line of a number of vacuum pump lines (391) mounted below the high-speed mixer; a number of screw feeders (33) for supplying mixture supplied to the hopper (32) to a material supply unit (36) in fixed quantity; the material supply unit (36) located below the screw feeder to be simultaneously supplied with the natural raw materials of fixed quantity, the material supply unit repeatedly conveying the materials to a forming press; the forming press having an upper mold and a lower mold for molding tablewares by receiving the natural raw materials from the material supply unit (36); a product-drawing device (38) entering into the forming press, absorbing and upwardly lifting molded tablewares by vacuum absorbing means, and setting down the tablewares on a conveyer by removing a vacuum state; the conveyer (311) for conveying the tablewares drawn by the product-drawing device (38); a trimming and blowing unit (41) for finishing edges of the tableware which is being conveyed by the conveyer and for removing dust stained on the tableware; a sterilizing unit (42) for sterilizing the tableware conveyed by the conveyer; and a packing unit (43) for packing the finally conveyed tableware by the conveyer, wherein the lower mold includes a number of molding sections molded according to the shape of the tableware, each molding section being provided with natural raw materials of fixed quantity, and the upper molds are formed symmetrically to the shape of each molding section of the lower mold and arranged in multiple, wherein the upper mold and the lower mold respectively have heating devices for individually heating them at a temperature of 160~180°C, and the upper mold or the lower mold is constructed in such a way as to move upwardly and downwardly so that a pressure of 800-1,000 ton is applied to the upper mold or the lower mold by pressurization of the forming press, and wherein the material supply unit (36) is operated in a cartridge type in such a way as to repeatedly convey natural raw materials of fixed quantity over the lower mold of the forming press (11) by the hydraulic device so that natural raw materials of fixed quantity can be supplied to the lower mold in multiple, and the cartridge type material supply unit includes: a plurality of storage parts arranged in multiple for receiving the natural raw materials of fixed quantity from a plurality of the screw feeders mounted below the hopper; and stopping parts for stopping the lower ends of the storage parts and opened and closed by hy- draulically or pneumatically conveying means.

[2] An apparatus for manufacturing naturally decomposing disposable pollution-free tableware according to claim 1, wherein a vacuum pump (39) located above the hopper (32) provides suction force to the vacuum pump lines.

[3] An apparatus for manufacturing naturally decomposing disposable pollution-free tableware according to claim 1, wherein the conveying means for conveying the materials to the forming press of the product-drawing device (38) moves forwardly and backwardly in one direction by a hydraulic or pneumatic cable (34), and enters into the forming press.

[4] An apparatus for manufacturing naturally decomposing disposable pollution-free tableware according to claim 1, wherein the conveying means for conveying the materials to the forming press of the product-drawing device (38) includes a robot arm having an arm variable in length, the robot arm entering into the forming press after an axial rotation between the forming press and the conveyer.