KR101728061B1 - Disposable paper plate having reinforcing curling edge, manufacturing apparatus and method for the same - Google Patents

Disposable paper plate having reinforcing curling edge, manufacturing apparatus and method for the same Download PDF

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Publication number
KR101728061B1
KR101728061B1 KR1020150120724A KR20150120724A KR101728061B1 KR 101728061 B1 KR101728061 B1 KR 101728061B1 KR 1020150120724 A KR1020150120724 A KR 1020150120724A KR 20150120724 A KR20150120724 A KR 20150120724A KR 101728061 B1 KR101728061 B1 KR 101728061B1
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South Korea
Prior art keywords
disposable paper
curling
unit
rim
paper sheet
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KR1020150120724A
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Korean (ko)
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KR20170024986A (en
Inventor
허성학
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현진제업주식회사
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Publication of KR20170024986A publication Critical patent/KR20170024986A/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G19/00—Table service
    • A47G19/02—Plates, dishes or the like
    • A47G19/03—Plates, dishes or the like for using only once, e.g. made of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/02—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles including pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/04—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles including folding or pleating, e.g. Chinese lanterns

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

Disclosed is a disposable paper plate having a curled portion formed in a circular rim portion to improve a flatness as a whole, as well as a curling portion capable of maintaining the overall shape regardless of contents such as food or the like contained in the inside. And a manufacturing method thereof. A disposable paper sheet 100 having a curled portion according to the present invention includes a bottom planar steel portion 110 disposed at a central portion of a predetermined disposable plate disposable diaper material M2 and formed concentrically and reinforcing strength, A plurality of wrinkles 121 radially formed along the circumference of the bottom planar steel portion 110 concentrically with the bottom planar steel portion 110 and formed with a concave downwardly concave portion 120, A rim 130 concentrically formed with the wrinkle 120 and an outermost rim 130 and a curling portion 140 connected to the rim 130 and coupled to the rear surface. According to the present invention, a curling portion is formed in a circular rim portion to prevent a distortion phenomenon that is generated when the rim is twisted, so that the flatness of the disposable paper sheet can be improved overall, A plurality of wrinkles radially formed in the rim can act as a main feature, so that the overall shape can be continuously maintained regardless of contents such as food or the like contained in the inside.

Description

Technical Field [0001] The present invention relates to a disposable paper sheet having a curling part,

The present invention relates to a disposable paper sheet, and more particularly, to a curled portion formed in a circular rim portion to improve flatness as a whole, and to maintain the overall shape of the disposable paper sheet regardless of contents such as food or the like The present invention relates to a disposable paper sheet having a curling portion, a manufacturing apparatus and a manufacturing method thereof.

Generally, a disposable paper sheet is manufactured and used so that it can be used once and then discarded. As for the manufacturing process, the upper surface on which the food is contained is made of a paper plate material having a coding layer on the uppermost layer, A blanking die is operated to form a disk, and the paper plate material that has been formed into a disk is dropped under the die.

In the subsequent process, the disk-shaped paper plate material dropped down the die is concaved downward through a drawing process, and wrinkles for reinforcing the strength are formed radially in the rim portion, so that the disposable paper The dishes are completed.

Conventionally, disposable paper cups or paper plates have been made by the above-described processes, and they have been completed by squeezing or specially folding the paper once made to perform secondary processing.

However, the disposable paper container according to the related art, which is manufactured by the above-described process, is disadvantageous in terms of strength, in particular, in that the rim of the rim is weakened so that the rim of the rim is prevented from being distorted Not only can not be done, but the overall shape can not be maintained uniformly depending on the contents such as food contained in the inside.

In order to solve this problem, the applicant of the present invention has proposed in Korean Registered Utility Model No. 20-0240033, as shown in Fig. 1, in relation to a paper container having a reinforcing frame, "folded or curved corrugated portion 12 & A synthetic resin material having a predetermined thickness (about 0.2 mm to 1 mm) is formed on the upper edge portion 10 of the paper container 1 at which the paper container 1 is formed, (PP) or polyethylene terephthalate (PET) is placed on the reinforcing frame 30 to form a rigid reinforcing frame 30 by ultrasonic welding, and the reinforcing frame 30 made of the synthetic resin material is provided on the rim of the paper container 1 A paper container having a reinforcing frame for sealing and adhering to a fine portion of a concave and convex portion of a corrugated portion 14 formed on a corrugated board 10 ".

However, according to the paper container having the reinforcing frame proposed above, it is difficult to produce the paper container in a large quantity but continuously, and it is difficult to produce the paper container after the manufacture. It is limited by the reinforcing frame 30, which is somewhat inconvenient for handling.

In addition, as disclosed in Korean Patent Registration No. 10-0597504, in relation to a base plate made of a paper material, as shown in Fig. 2, a plurality of base bodies (10, 20) are laminated to each other by mutual thermal fusion bonding, and each supporting body (10, 20) has a planar supporting portion (11, 21) and a peripheral edge And the rim portions 12 and 22 are folded upward at predetermined angles along the rim portions 12 and 22. The rim portions 12 and 22 form folded portions 13 and 23 that are folded at each corner portion, And a curling portion 14 is formed at the upper end of the portions 12 and 22 so as to be curled outwardly to reinforce the strength.

However, according to the support plate made of the paper material proposed above, not only two backing plate materials of approximately the same size are required for manufacturing one backing plate, but also each of the backing plates The corrugated portions 13 and 23 are respectively formed at the corners of the corrugated sheets 10 and 20 and the corrugated sheets 13 and 23 are formed by using the pair of corrugated sheets 10 and 20, Since the curled portion 14 is formed in the rim portion 12, there is a problem that the process is complicated as a whole, and a lot of defects occur in the wrinkle forming process and the curling process, which can increase the material cost sharply.

Regarding the disposable plate, in Registration Practical Utility Model No. 20-0458115, there is a description of a "food-containing inner storage surface 21 and an inner storage surface 21 extending outwardly outwardly of the inner storage surface 21, A disposable dish composed of an outer storage surface 22 for preventing the outer storage surface 22 and a waved portion 23 formed on the inner and outer storage surfaces 21 and 22 and the outer storage surface 22 The disposable plate (20) is integrally protruded in the outer direction of the outer side storage surface (22) to form a protruded surface separate from the outer side storage surface (22), and at least one outer side And a printing unit (26) configured by selecting the surface of the protruding integral projecting portion (25) and the protruding portion (25) which is an area where the outer storage surface (22) is outwardly outward. The disposable plate .

Regarding disposable paper utensils made of vegetable pulp, in Patent Publication No. 10-0388809, "a disposable paper utensil made of pulp processed by soaking a reed, the soaked reed is immersed in an alkaline solution, A paper disposable paper tableware made of vegetable pulp "is proposed, wherein the paper pulp is made of pulp with a moisture content of 90%, which is washed with water and washed with distilled water, Respectively.

However, the conventional disposable paper sheet comprising a folded portion having a plurality of corrugations radially formed on the circular rim portion can not prevent a distortion phenomenon caused by warpage of the rim portion in advance, There is a difficult problem in that the overall shape can not be maintained uniformly depending on the contents to be contained.

KR 20-0240033 Y1 KR 10-0597504 B1 KR 20-0458115 Y1 KR 10-0388809 B1

Disclosure of the Invention The present invention has been proposed in order to solve the above problems of the related art, and it is an object of the present invention to provide a disposable paper sheet material which has a disc shape and has a curling portion which is curled in a downward direction The present invention provides a disposable paper sheet having a curled portion that can prevent a distortion phenomenon caused by warpage of the edge portion in advance and improve the overall flatness, a manufacturing apparatus and a manufacturing method thereof.

It is another object of the present invention to provide a disposable paper sheet having a curling part which can prevent a distortion phenomenon caused by warpage of the frame part so that the overall shape can be uniformly maintained regardless of the contents contained in the inside, A manufacturing apparatus and a manufacturing method.

In order to accomplish the above object, there is provided a disposable paper plate having a curled portion, wherein the contents such as foods are placed on the upper side of the disposable paper sheet, and both sides thereof are coated to form a circular shape, A bottom planar steel portion disposed at the center of the dish-shaped unit disposable paper plate material and formed concentrically and reinforcing the strength; A wrinkle portion concentrically formed with the bottom face stiffness portion and having a plurality of wrinkles radially reinforced along the periphery of the bottom face stiffness portion and formed to be concave downwardly; A rim concentrically formed with the corrugation and disposed at an outermost periphery; And a curling part connected to the rim and coupled to the rear surface.

The curling portion is composed of a plurality of unit cut-out portions which are formed at equal intervals in a unfolded state before being coupled to the back surface and cut radially in a predetermined size.

The plurality of unit cut-outs are sequentially joined to the rear surface of the rim in the order of the adjacent unit cuts.

In the process of joining the plurality of unit cut-out portions to the rear surface of the rim portion, specific edge portions are regularly overlapped and bonded to the rear surface.

The plurality of unit cut-out portions are ultrasonically heat-sealed by a dish-shaped curling portion constituting the disposable paper making apparatus having a curling portion, and are bonded to the back surface of the frame portion.

In order to accomplish the above object, the present invention provides a disposable paper plate manufacturing apparatus having a curling portion, wherein both sides of the paper sheet are coated, and a curling portion for strength reinforcement is formed on a rim of the disposable paper sheet material, In the apparatus, a disposable paper plate material on both sides of which a coating layer is formed is wound in the form of a roll, rotated at a predetermined speed, and the wound disposable paper plate material can be loosened; A plate-like breaking unit for pressing a disposable paper sheet material supplied from the material supply roll unit to press a certain disposable paper sheet material of a predetermined size into a dish shape; A folded portion formed radially from the center portion toward the rim portion for strength reinforcement is formed on the unit disposable paper sheet material cut and supplied from the dish shaped breaking portion, A dish-shaped drawing unit for forming an incision; An incision deep drawing unit for receiving a unit disposable paper sheet drawing material having a wrinkle portion and an incision portion from the dish shape drawing portion and vertically deforming the incisal incision portion to bend downward; A dish-shaped pre-curling portion in which an end of the equal-interval incised portion bent in a downward direction is bent at a center as the stage is drawn through the incision deep drawing portion, and is placed in a curling ready state; And a unit disposable paper preparation preliminarily curling material in which the ends of equally spaced incision portions are bent at the center as the plate preliminarily curling portion is passed through, And a dish-shaped curling part which is sequentially formed on the back surface of the material and is superimposed so as to be thermally fused by ultrasonic waves to form a curling part.

According to another aspect of the present invention, there is provided a method of manufacturing a disposable paper sheet having a curled portion, the method comprising: winding a disposable paper sheet material having a predetermined length on a material supply roll; Feeding the disposable paper sheet material wound on the material supply roll unit at a predetermined constant speed; Wherein the disposable paper sheet material fed from the material supply roll unit is cut by a plate-like branking unit to produce a circular unit disposable paper sheet material having a plurality of unit cutouts radially cut at a predetermined size along a rim ; And the unit disposable paper sheet material cut by the dish-shaped breaking portion is ultrasonically thermally fused by the dish-shaped curling portion so that a plurality of the unit cut-out portions are bonded to the back surface of the frame portion. do.

According to the present invention, a curling portion is formed in a circular rim portion, and a distorted phenomenon that is generated when the rim is distorted can be prevented in advance, so that the flatness of the disposable paper sheet can be improved overall.

In addition, according to the present invention, it is possible to prevent a distortion phenomenon caused by warpage of a frame part in advance, and a plurality of wrinkles formed radially in the frame part can play a role in reinforcing the strength, The overall shape can be maintained constantly regardless of the contents such as the foods to be contained.

According to the present invention, even when a plurality of disposable paper plates having curled portions are stacked, wrinkles for strength reinforcement are radially formed in the rim, and the curling portions are disposed between the gaps of the adjacent disposable paper plates And the total height of the stacked layers is not further increased due to the curling portion, so that storage and handling can be facilitated.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the entire outline of a paper container having a reinforcing frame of the prior art,
Fig. 2 is a sectional view showing a receiving plate made of another conventional paper material, Fig.
3 is a schematic view showing the entire outer shape of a disposable paper sheet having a curling portion of the present invention,
Fig. 4 is a schematic view showing the entire rear contour of the disposable paper tray with the curling portion shown in Fig. 3,
Fig. 5 is a schematic view showing a manufacturing apparatus capable of manufacturing a disposable paper sheet having the curling portion shown in Fig. 3,
Fig. 6 is a schematic view showing a dish-shaped breaking portion in the apparatus for manufacturing a disposable paper sheet having the curling portion shown in Fig. 4;
FIG. 7 is a schematic view showing a dish-shaped drawing unit in the apparatus for manufacturing a disposable paper sheet having the curling portion shown in FIG. 4;
Fig. 8 is a schematic view showing an evacuation deep drawing portion in an apparatus for manufacturing a disposable paper sheet having a curling portion shown in Fig. 4,
Fig. 9 is a schematic view showing a dish-shaped pre-curled portion in the apparatus for manufacturing a disposable paper sheet having the curled portion shown in Fig. 4;
Fig. 10A is a schematic view showing a dish-shaped curling portion in the apparatus for manufacturing a disposable paper sheet having a curling portion shown in Fig. 4, Fig. 10B is a view showing the back side of a disposable paper plate having a curling portion manufactured through the process shown in Fig. Sectional view of the curled portion,
11 is a flowchart showing a manufacturing method according to an apparatus for manufacturing a disposable paper sheet having a curled portion shown in Fig.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings. The following examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

Fig. 3 is a schematic view showing the overall contour of a disposable paper sheet having a curling portion of the present invention, Fig. 4 is a schematic view showing the entire back contour of a disposable paper tray having a curling portion shown in Fig. 3, The paper disposable diaper 100 has a bottom surface plain steel portion 110 formed concentrically and reinforcing the strength, a corrugated portion 120 recessed downward as a whole, a rim portion 130 disposed at the outermost portion, And a curling part 140 coupled to the rim 130 and coupled to the rear surface.

3 and 4, the bottom flushing steel section 110 has a top surface provided with contents such as food or the like, both sides of which are coated, and the outer shape is formed in a circular shape. In the disposable paper tray, And is formed as a concentric circle so as to maintain the overall shape without being limited to the contents contained therein, and is provided with concave and convex portions in the vertical direction ) Are alternately formed to reinforce the strength so as to stably support the contained contents.

Here, the both sides of the coated surface are formed by covering polypropylene (PP) or polyethylene terephthalate (PET) as an example of a synthetic resin having a predetermined thickness (about 0.2 mm to 1 mm) do.

The corrugated portion 120 is coated on both sides and is concentric with the bottom isosugtenoid portion 110 constituting the center of the disposable paper tray, A plurality of corrugations 121 for reinforcing the strength are formed radially around the circumference of the bottom planar steel portion 110 and the shape is inclined downward to form a concave shape.

A plurality of the wrinkles 121 for reinforcing the strength are preferably disposed at equal intervals from each other in terms of strength reinforcement.

The rim 130 is disposed concentrically with the wrinkle 120 and disposed at the outermost portion of the rim 120. When the wrinkle portion 120 of the disposable paper tray 100 of the present invention is applied with an external force, It is a component that performs strength reinforcement function.

The curled portion 140 is connected to the rim 130 and is coupled to the rear surface of the curled portion 140. The curled portion 140 is ultrasonically thermally fused by a dish-shaped curling portion 260 to be described later, In the disposable paper tray 100 having the curled portion according to the present invention is not only improved in the overall flatness but also is not limited to contents such as food or the like contained in the inside of the disposable paper tray 100 , Which is a main component that allows the overall shape to be maintained, and is formed by a working process (S140) described later.

As shown in FIG. 4, for convenience of explanation in the formation of the dish-shaped curling portion 260, several unit cutouts 141 corresponding to the plurality of unit cutouts 141 are formed, And is not thermally welded.

5 is a schematic view showing a manufacturing apparatus capable of manufacturing a disposable paper sheet having the curled portion shown in Fig. 3, Fig. 6 is an apparatus for manufacturing a disposable paper sheet having the curling portion shown in Fig. 4, Fig. 7 is a schematic view showing a dish-shaped drawing portion in the apparatus for manufacturing a disposable paper sheet having the curling portion shown in Fig. 4, and Fig. 8 is a schematic view showing the disposable paper- Fig. 3 is a schematic view showing an incision improvement deep drawing portion in a paper sheet producing apparatus. Fig.

5, a disposable paper dish manufacturing apparatus 200, in which a curling portion 140 for strength reinforcement is formed on a rim of a disposable paper sheet material as shown in FIG. 5, includes a disposable paper sheet A material supply roll part 210 in which the plate material M1 is wound in a roll form and is rotated at a predetermined constant speed so that the wound disposable paper plate material M1 can be loosened; A plate-like breaking unit 220 for press-pushing the disposable paper sheet material M1 supplied from the material supply roll unit 210 and cutting the unit disposable paper sheet material M2 having a predetermined size into a dish shape; A plurality of wrinkles for reinforcing the strength are formed on the unit disposable paper sheet material M2 cut and cut in the dish-shaped breaking portion 220 so as to extend from the center portion toward the rim O, W, and a dish-shaped drawing unit 230 for forming a cut-out portion S at a predetermined interval in the rim O; The unit disposable paper sheet drawing material M3 having the corrugated portion W and the cut portion S is received from the dish shape drawing portion 230 and the cut portion S of the equal interval is bent in the downward direction An evacuating deep drawing unit 240 for vertically transporting the evanescent deep drawing unit 240; A dish-shaped pre-curled portion 250 which is bent in the downward direction and is bent at the center of the end portion S1 of the notched portion of the equal interval, and is placed in a state ready for culling, through the incision deep drawing portion 240; And the unit-shaped disposable paper pre-curling material (M4) in which the end portion (S1) of the equal-interval incision portion is bent to the center as the plate-shaped precurring portion (250) And a dish-shaped curling portion 260 in which the end portion S1 of the unit is sequentially formed on the rear surface of the unit disposable paper plate pre-curling material M4 and superimposed thereon by ultrasonic welding to form a curling portion 140. [

Fig. 6 is a schematic view showing a dish-shaped breaking portion in the apparatus for manufacturing a disposable paper sheet having the curling portion shown in Fig. 4;

6, in the apparatus 200 for manufacturing a disposable paper sheet having a curling portion, the plate-shaped breaking unit 220 is provided with a unit disposable paper sheet material M2 in a plate shape drawing unit 230 to be described later, Is a constituent element for pressing the disposable paper sheet material M1 supplied from the material supply roll section 210 to press the unit disposable paper sheet material M2 having the predetermined size and having a predetermined dish shape .

At this time, the unit disposable paper sheet material M2 produced by the cranking process is schematically shown at the lower end of FIG. 6, and is formed into a circular shape as it is pressed by the blanking punch 220-1 And punched.

Fig. 7 is a schematic view showing a dish-shaped drawing unit in the apparatus for manufacturing a disposable paper sheet having the curled portion shown in Fig. 4;

7, in the apparatus 200 for manufacturing a disposable paper sheet having a curled portion, the plate shape drawing unit 230 is provided with a unit disposable paper sheet drawing material M3 in the deep drawing unit 240 A plurality of wrinkles for reinforcing the strength are radially directed from the center portion toward the rim portion O with respect to the unit disposable paper sheet material M2 cut and fed from the dish-shaped breaking portion 220 And a wedge portion (W) to be disposed thereon is formed, and the rim portion (O) is a constituent element for forming the cut portion S with equal intervals.

Fig. 8 is a schematic view showing an evacuation deep drawing portion in an apparatus for manufacturing a disposable paper sheet having a curling portion shown in Fig. 4; Fig.

As shown in FIG. 8, in the apparatus 200 for manufacturing a disposable paper sheet having a curled portion, the incise reduction deep drawing unit 240 is for bending the incised portion S at equal intervals in the downward direction, The unit disposable paper sheet drawing material M3 having the corrugated portion W and the cut-out portion S is received from the dish-shaped drawing portion 230, and the cut- Lt; / RTI >

FIG. 9 is a schematic view showing a dish-shaped pre-curled portion in the apparatus for manufacturing a disposable paper sheet having the curled portion shown in FIG.

9, in the apparatus 200 for manufacturing a disposable paper sheet having a curling portion, the dish-shaped pre-curling portion 250 is formed by arranging the end S1 of the cutout portion at equal intervals at a predetermined angle toward the center The end portion S1 of the equal interval bending portion bent in the downward direction is bent at a predetermined angle toward the center portion along the folding preparation deep drawing portion 240, As shown in Fig.

At this time, as shown in FIG. 9, at least two or more slide-type dies 250-2 are slid toward the center, so that the sloped surfaces of the foremost ends of the respective slide- By pressing the end S1 of the incision part, the end S1 of the equal-interval incision part is forcibly bent at a predetermined angle toward the center part, thereby being placed in a step of preparing for curling.

Fig. 10A is a schematic view showing a dish-shaped curling portion in the apparatus for manufacturing a disposable paper tray having the curling portion shown in Fig. 4, Fig. 10B is a perspective view showing a disposable paper sheet having a curling portion manufactured through the process shown in Fig. Fig. 6 is a partially enlarged view of a curled portion.

As shown in FIGS. 10A and 10B, in the apparatus 200 for manufacturing a disposable paper sheet having a curled portion, the dish-shaped curling portion 260 is formed in a shape For the unit disposable paper pre-curling material M4 in which the end S1 of the cut-out portion of the gap is bent in the center, the end S1 of each equal-interval cut-out portion is formed in the unit disposable paper- And is formed by superficially ultrasonic welding to form the curled portion 140. [

At this time, as the operation of the dish-shaped curling part 260 is completed, the disposable paper tray 100 having the curled part according to the present invention has an outer shape concentric with the bottom shoulder 110 of the central part, And the rim portion 130 is disposed at the outermost portion.

In addition, a plurality of unit cutouts 141 provided at predetermined intervals on the rear surface of the rim 130 may be formed by ultrasonic heat welding such that each of the corner portions 141a is regularly overlapped with a certain region Curling portion 140 is formed.

Here, due to the thermal energy of the predetermined fixed temperature delivered from the heat fusion heat generating unit 260-1a provided at the lowermost end of the heat welding lowering unit 260-1, which is a main component of the dish curling unit 260, The unit cutout portions 141 are thermally fused to the rear surface of the rim 130. At this time, as shown in the lower side of FIG. 10B, each of the corner portions 141a is divided into a plurality of So that not only the flatness is improved as a whole but also distortion that is generated when the rim 130 is twisted can be prevented in advance.

Therefore, by forming the curled portion 140 on the back surface of the rim 130 by the ultrasonic welding as described above, it is possible to prevent the distortion occurring due to the rim of the rim 130, A plurality of wrinkles 121 radially formed on the rim 130 can play its role and the overall mechanical strength can be maintained.

In addition, the method for manufacturing a disposable paper sheet of the present invention includes the steps S110 of winding a disposable paper sheet material M1 having a predetermined length on a material supply roll 210; A step S120 of feeding the disposable paper sheet material M1 wound on the material supply roll 210 at a predetermined constant speed; The disposable paper sheet material M1 fed from the material supply roll unit 210 is cut by the plate-shaped breaking unit 220 and is cut into a plurality of unit incisions A step S130 of producing a circular unitary disposable paper sheet material M2 having a portion 141; And the unit disposable paper sheet material M2 cut by the dish-shaped breaking portion 220 is thermally fused with the dish-shaped curling portion 260 by ultrasonic waves to form a plurality of unit cutouts 141, (S140), which is coupled to the back surface of the substrate 130.

At this time, in the disposable paper plate manufacturing method of the present invention, the disposable paper tray 100 having the curled portion is completed as the paper stock is received, and then, after being set, various processes are performed and the disposable paper tray 100 having the completed curled portions (100) is packed in a water film, and is put on the final release standby state through labeling and counting.

Therefore, according to the disposable paper sheet having the curled portion of the embodiment of the present invention having the above-described structure, the curling portion 140 is formed on the back surface of the frame 130 by ultrasonic welding, It is possible to prevent the distortion occurring due to the warping of the rim 130 and to keep the overall shape constant regardless of the content such as food or the like contained in the inside, and at the same time, , The disposable paper tray 100 having the curled portion of the present invention can be moved and stably moved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

100: Disposable paper plate with curled part 110:
120: a wrinkle portion 121; Multiple folds for strength reinforcement
130; A rim 140; Curling portion
141; A plurality of unit cutouts 141a; Corner portion
200: Disposable paper-making apparatus with a curling part
210: material supply roll 220: plate-like breaking unit
220-1: Ranking punch 220-2: Branking die
220-2a: Ranking ball 230: dish shape drawing part
230-1: dish shape drawing punch 230-2: dish shape drawing die
240: Section Improvement Deep Drawing Section 240-1: Section Improvement Deep Drawing Punch
240-2: section improvement deep drawing die 250: dish shape pre-
250-1: preliminary curling punch 250-2: slide die
250-3: preliminary curling supporting die 260: dish-shaped curling portion
260-1: Thermal Fusion Depositor 260-1a: Heat Fusion Heat Generating Unit
260-2: Heat-fusing support die M1: Disposable paper plate material
M2: Unit disposable paper plate material M3: Unit disposable paper plate drawing material
M4: Unit disposable paper plate pre-curling material
O: rim S: incision
S1: end of the incision part W:

Claims (7)

1. A disposable paper dish in which contents are placed on an upper side, both sides are coated, and an outer shape is formed in a circular shape,
A bottom planar steel portion 110 disposed at a central portion of the unitary disposable paper plate material M2 having a predetermined dish shape and concentrically formed to reinforce the strength;
A plurality of corrugations 121 radially formed along the circumference of the bottom planar steel section 110 concentrically with the bottom planar steel section 110 and having a concave downwardly concave part 120, ;
A rim 130 concentrically formed with the corrugation 120 and disposed at the outermost periphery; And
And a curling part (140) connected to the rim (130) and coupled to the rear surface,
The curling portion 140
And a plurality of unit cutouts 141 formed at equal intervals in a unfolded state before being coupled to the back surface and being radially cut to a predetermined size,
The plurality of unit cutouts 141
Are sequentially coupled to the rear surface of the rim (130) in the order of the adjacent ridges. delete delete The apparatus of claim 1, wherein the plurality of unit cutouts (141)
Characterized in that, in the process of being coupled to the rear surface of the rim (130), specific corners (141a) are regularly superimposed and joined to the back surface.
The apparatus of claim 1, wherein the plurality of unit cutouts (141)
Shaped paper making apparatus (200) having a curled portion, and is coupled to the rear surface of the rim (130) by ultrasonic welding by a dish-shaped curling portion (260) constituting the disposable paper making apparatus (200) having a curling portion. A disposable paper sheet manufacturing apparatus in which both side surfaces are coated so that a curling portion (140) for strength reinforcement is formed at a rim portion of a unit disposable paper plate material (M2)
Disposable paper sheet material M1 having a coating layer formed thereon is rolled in a roll form and is rotated at a predetermined speed to form a material supply roll part 210 in which the wound disposable paper sheet material M1 can be loosened );
A plate-like breaking unit 220 for press-pushing the disposable paper sheet material M1 supplied from the material supply roll unit 210 and cutting the unit disposable paper sheet material M2 having a predetermined size into a dish shape;
A plurality of wrinkles for reinforcing the strength are formed on the unit disposable paper sheet material M2 cut and cut in the dish-shaped breaking portion 220 so as to extend from the center portion toward the rim O, W, and a dish-shaped drawing unit 230 for forming a cut-out portion S at a predetermined interval in the rim O;
The unit disposable paper sheet drawing material M3 having the corrugated portion W and the cut portion S is received from the dish shape drawing portion 230 and the cut portion S of the equal interval is bent in the downward direction An incision improving deep drawing portion 240 for deforming in the vertical direction;
A dish-shaped pre-curled portion 250 which is bent in the downward direction and is bent at the center of the end portion S1 of the notched portion of the equal interval, and is placed in a state ready for culling, through the incision deep drawing portion 240; And
As the unit disposable paper pre-curling material M4 in which the end portion S1 of the equal interval cut portion is bent to the center as the dish-shaped pre-curling portion 250 is passed, Shaped curling portion 260 in which an end portion S1 is sequentially formed on the back surface of the unit disposable paper plate pre-curling material M4 and superimposed thereon by ultrasonic welding to form a curling portion 140,
The dish shape drawing unit 230
For supplying the unit disposable paper sheet drawing material M3 to the incision improvement deep drawing unit 240, the unit disposable paper sheet material M2 cut and cut in the dish shaped breaking unit 220 is subjected to a strength A corrugated portion W disposed radially is formed such that a plurality of corrugations for reinforcement are directed from the center portion toward the corrugated portion O and the corrugated portion O is formed with a predetermined cut- And,
The dish-shaped pre-curled portion 250 is formed in a plate-
The apparatus according to any one of claims 1 to 3, wherein an end portion (S1) of an equal-interval incision portion is bent at a predetermined angle toward the center portion, the lower incision portion As the end portion S1 is bent at a certain angle toward the center to be placed in the curling preparation state and at least two or more slide die 250-2 are slid toward the center portion, The end S1 of the notched portion is forcibly bent at a predetermined angle toward the center portion by pressing the end S1 of the cutout portion of the equal interval so that the curling is prepared And the curling portion is provided with a curling portion. delete
KR1020150120724A 2015-08-27 2015-08-27 Disposable paper plate having reinforcing curling edge, manufacturing apparatus and method for the same KR101728061B1 (en)

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KR102404803B1 (en) 2022-03-15 2022-05-31 이우현 An eco-friendly container manufacturing method using wood fabric

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KR102220052B1 (en) * 2020-06-10 2021-02-24 김아름솔 Disposable tray

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KR200355514Y1 (en) * 2004-03-26 2004-07-07 김완회 Food vessel for affinity of environment

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KR200240033Y1 (en) 2001-05-02 2001-10-12 현진제업 주식회사 Paper vessel having reinforcing frame
KR100597504B1 (en) 2004-05-18 2006-07-11 서정수 A paper plate
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KR200355514Y1 (en) * 2004-03-26 2004-07-07 김완회 Food vessel for affinity of environment

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102404803B1 (en) 2022-03-15 2022-05-31 이우현 An eco-friendly container manufacturing method using wood fabric

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