WO2020031318A1 - Dispositif de production de récipient en papier, procédé de production de récipient en papier et récipient en papier - Google Patents

Dispositif de production de récipient en papier, procédé de production de récipient en papier et récipient en papier Download PDF

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Publication number
WO2020031318A1
WO2020031318A1 PCT/JP2018/029862 JP2018029862W WO2020031318A1 WO 2020031318 A1 WO2020031318 A1 WO 2020031318A1 JP 2018029862 W JP2018029862 W JP 2018029862W WO 2020031318 A1 WO2020031318 A1 WO 2020031318A1
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WO
WIPO (PCT)
Prior art keywords
mold
paper container
die
paper
ruled line
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Application number
PCT/JP2018/029862
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English (en)
Japanese (ja)
Inventor
隆昌 篠原
歩 筒木
Original Assignee
東洋アルミエコープロダクツ株式会社
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.)
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Application filed by 東洋アルミエコープロダクツ株式会社 filed Critical 東洋アルミエコープロダクツ株式会社
Priority to PCT/JP2018/029862 priority Critical patent/WO2020031318A1/fr
Publication of WO2020031318A1 publication Critical patent/WO2020031318A1/fr

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    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/25—Surface scoring
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/59—Shaping sheet material under pressure

Definitions

  • the present invention relates to a paper container manufacturing apparatus, a paper container manufacturing method, and a paper container, and more particularly, to a paper container manufacturing apparatus formed by at least two pressing steps, and a paper container manufacturing method using the paper container manufacturing apparatus. And a paper container obtained by the paper container manufacturing apparatus.
  • FIG. 10 is a perspective view showing the appearance of a conventional paper container.
  • paper container 70 has a square bottom 71, a side wall 72 extending upward from the outer edge of bottom 71, a corner 74 connecting side walls 72 together, a side wall 72 and a corner 74. And a rim 73 formed on the outer edge of the rim.
  • the paper container 70 is formed by press-forming one blank sheet.
  • Such press-formed paper containers are lightweight and advantageous in cost, and thus are mainly used for storing foods.
  • Various manufacturing apparatuses by press molding for manufacturing such paper containers have been proposed (for example, Japanese Patent Application Laid-Open No. 2011-212882).
  • FIG. 11 is a schematic view showing a conventional paper container manufacturing apparatus
  • FIG. 12 is a schematic view showing a base paper processing step in the paper container manufacturing apparatus shown in FIG. This shows the state immediately after the supply position (B1), (2) shows the state immediately after the ruled line forming position (B2), and (3) shows the state immediately after the punching / pressing position (B3). It is shown.
  • FIG. 13 is a schematic sectional view showing a first mold part of the paper container manufacturing apparatus shown in FIG. 11, and FIG. 14 is a second mold of the paper container manufacturing apparatus shown in FIG. It is a schematic sectional drawing which shows the part.
  • a conventional paper container manufacturing apparatus 80 includes a supply apparatus 81 that supplies a strip-shaped base paper 77 to the upstream side thereof. Further, a molding device 83 is disposed downstream of the supply device 81.
  • the molding device 83 includes a pair of first molds 91a and 91b shown in FIG. 13 located on the upstream side and a diagram located on the downstream side. 14 and a pair of second molds 92a and 92b. Specific uses of each mold will be described later.
  • the first dies 91a and 91b and the second dies 92a and 92b are attached to a pair of up and down moving devices 84.
  • the strip-shaped base paper 77 wound in a roll and arranged at the base paper supply position B1 is continuously supplied from the supply device 81 to the ruled line forming position B2.
  • the supplied base paper 77 is moved by the first molds 91a and 91b of the molding device 83 at the ruled line forming position B2, as shown in (2) of FIG. Are formed at predetermined positions.
  • the base paper 77 on which the ruled lines 75 are formed is then transferred to a punching / pressing position B3.
  • the transferred base paper 77 slides between the cutting edges (not shown) provided in the second dies 92a and 92b of the molding device 83 at the punching / pressing position B3.
  • the blank sheet is punched into a desired shape.
  • the blank sheet is pressed into a container shape by the pressing end surfaces of the upper mold member 93 of the second mold 92a and the lower mold member 94 of the second mold 92b in the same position.
  • the end of the pressed blank sheet is wound by the curl groove 99 formed by the contact between the elevating member 97 and the curling member 98 to form the rim 73.
  • the first molds 91a and 91b and the second molds 92a and 92b are attached to the pair of vertical movement devices 84, the first molds 91a and 91b and the second molds 92a and 92b Act on the base paper 77 and the blank sheet in synchronization. Accordingly, the production efficiency is improved, and the molding device 83 and the manufacturing device 80 are compact.
  • the ruled line formation can be performed.
  • the production efficiency is improved by synchronizing the two different press working processes of punching and forming.
  • the rigidity of each of the first molds 91a and 91b and the second molds 92a and 92b with respect to the compressive force is different from each other due to the difference in the structure and the like of each mold.
  • the second molds 92a and 92b are considered to have lower rigidity than the first molds 91a and 91b from the configuration.
  • FIG. 15 is a schematic diagram showing the positional relationship between the first die and the second die during press working of the paper container manufacturing apparatus shown in FIG. 11, and (1) shows a state at the start of press working. (2) is a diagram showing a state immediately before sandwiching the base paper, and (3) is a diagram showing a state during pressing. In FIG. 15, the illustration of the base paper is omitted for clarity of the drawing.
  • the upper supports 88 of the pair of vertical movement devices 84 further descend to the bottom dead center of each of the first mold 91a and the second mold 92a, and are not shown.
  • the base paper is subjected to press ruled line processing by the first dies 91a and 91b, and punching and press forming by the second dies 92a and 92b.
  • the upper support 88 is entirely in the second mold due to the difference in compression strain between the first molds 91a and 91b and the second molds 92a and 92b. It inclines slightly diagonally downward toward the side.
  • FIG. 16 is a plan view showing the state of the base paper after the press crease processing by the first die shown in FIG.
  • the compressive force is not evenly applied to the entire first mold, so that the upstream ruled line 75 where the compressive force is reduced. Tends to cause poor formation such as blurring. In addition, as a result, molding defects tend to occur in the subsequent punching and press molding steps.
  • the present invention has been made in order to solve the above-described problems, and can stably mass-produce high-quality paper containers, a paper container manufacturing apparatus with improved press molding accuracy, a paper container manufacturing method, and It is intended to provide a paper container.
  • a paper container manufacturing apparatus is a paper container manufacturing apparatus formed by a first pressing step and a second pressing step.
  • At least one of the upper mold and the lower mold is provided with a correcting means for correcting the facing distance between the dies during press forming so as to approach the original distance.
  • An apparatus for manufacturing a paper container according to a second aspect of the present invention is an apparatus for manufacturing a paper container by press molding, comprising: a base paper supply means for supplying a band-shaped base paper; After forming a ruled line for absorbing wrinkles, a ruled line forming means for transferring, a blank sheet punching means for punching a blank sheet of a desired shape including at least a part of the ruled line from the transferred base paper, Press means for press-forming the blank sheet at that position, wherein the ruled line forming means comprises a first mold, the blank sheet punching means and the press means comprise a second mold, and a first mold.
  • the second mold are attached to a pair of up and down moving devices, and at least one of the upper mold and the lower mold constituting the first mold has a facing distance between the molds when forming the ruled line.
  • the correcting means may include a lower mold and a lower support of a vertical moving device that supports the lower mold. It includes at least one gas cushion installed.
  • the apparatus for manufacturing a paper container according to a fourth aspect of the present invention is the configuration of the invention according to the third aspect, wherein the lower mold has a substantially rectangular shape in plan view, and the gas cushion is provided at each lower surface corner of the lower mold. It is arranged in.
  • a method for manufacturing a paper container according to a fifth aspect of the present invention is a method for manufacturing a paper container, wherein the paper container is manufactured using the apparatus for manufacturing a paper container according to any one of the first to fourth aspects. Things.
  • the paper container according to the sixth aspect of the present invention is a paper container, which is obtained by the paper container manufacturing apparatus according to any one of the first to fourth aspects.
  • the press molding accuracy is improved, so that the quality of the paper container is improved.
  • the accuracy of forming the ruled line is improved, and thus the quality of the paper container is improved.
  • the stroke changes depending on the magnitude of the force applied to the gas cushion.
  • the inclination of the lower mold follows the inclination of the mold.
  • the apparatus for manufacturing a paper container according to the fourth aspect of the present invention in addition to the effect of the invention according to the third aspect, always performs correction by the gas cushion regardless of the inclination direction of the upper mold. The reliability of the ruled line forming operation is improved.
  • the press molding accuracy is improved, so that a paper container with improved quality can be manufactured.
  • the paper container according to the sixth aspect of the present invention is an improved quality paper container because the press molding accuracy is improved.
  • FIG. 2 is a schematic cross-sectional view showing a first mold part of the paper container manufacturing apparatus shown in FIG. 1 and showing a state before press crease processing.
  • FIG. 3 is a schematic sectional view taken along line III-III shown in FIG. 2.
  • FIG. 2 is a schematic cross-sectional view illustrating a second mold part of the paper container manufacturing apparatus illustrated in FIG. 1, illustrating a state before punching and press forming.
  • FIG. 2 is a schematic diagram illustrating a positional relationship between a first mold and a second mold during press working of the paper container manufacturing apparatus illustrated in FIG. 1.
  • FIG. 1 is a schematic cross-sectional view showing a first mold part of the paper container manufacturing apparatus shown in FIG. 1 and showing a state before press crease processing.
  • FIG. 3 is a schematic sectional view taken along line III-III shown in FIG. 2.
  • FIG. 2 is a schematic cross-sectional view illustrating a second mold part of the paper container manufacturing apparatus illustrated in FIG. 1, illustrating a state before punching
  • FIG. 2 is a schematic cross-sectional view illustrating a portion including a first mold of the paper container manufacturing apparatus illustrated in FIG. 1, and is a diagram illustrating a state during press crease processing.
  • FIG. 7 is a plan view showing a state of a base paper after press crease processing by a first mold shown in FIG. 6.
  • FIG. 2 is a schematic cross-sectional view illustrating a portion including a second mold of the apparatus for manufacturing the paper container illustrated in FIG. 1, illustrating a state during punching and press forming.
  • FIG. 9 is a schematic cross-sectional view showing a first mold part of a paper container manufacturing apparatus according to a second embodiment of the present invention, showing a state before press crease processing, and corresponds to FIG. 2.
  • FIG. 2 is a schematic cross-sectional view illustrating a portion including a first mold of the paper container manufacturing apparatus illustrated in FIG. 1, and is a diagram illustrating a state during press crease processing.
  • FIG. 7 is a plan view showing a state of
  • FIG. 12 is a schematic diagram illustrating a process of processing base paper in the paper container manufacturing apparatus illustrated in FIG. 11.
  • FIG. 12 is a schematic sectional view showing a first mold part of the paper container manufacturing apparatus shown in FIG. 11.
  • FIG. 12 is a schematic cross-sectional view illustrating a second mold portion of the paper container manufacturing apparatus illustrated in FIG. 11.
  • FIG. 12 is a schematic diagram illustrating a positional relationship between a first mold and a second mold during press working of the paper container manufacturing apparatus illustrated in FIG. 11.
  • FIG. 14 is a plan view showing a state of the base paper after press crease processing by the first die shown in FIG. 13.
  • FIG. 1 is a schematic diagram showing an apparatus for manufacturing a paper container according to the first embodiment of the present invention.
  • a paper container 50 manufactured by the paper container manufacturing apparatus 10 according to the present embodiment has the same configuration as the conventional paper container 70 shown in FIG.
  • the paper container manufacturing apparatus 10 has basically the same configuration as a conventional paper container manufacturing apparatus. Each device and operation of the paper container manufacturing apparatus 10 will be briefly described in order from the upstream side.
  • the strip-shaped base paper 57 wound in a roll disposed at the base paper supply position A1 is subjected to a surface coating process or the like by a supply device 11 which is a base paper supply unit in the same manner as in the related art. It is continuously supplied to the downstream molding device 13.
  • the molding device 13 includes a pair of up and down movement devices 14, which will be described in detail later, and a first mold 21 serving as a ruled line forming means is mounted at a ruled line forming position A2 on the upstream side. Between the lower mold 21b of the first mold 21 and the lower support 19, gas cushions 23a to 23d are provided. Further, at a punching / pressing position A3 on the downstream side of the pair of vertical moving devices 14, a second die 22 as a blank sheet punching means and a pressing means is attached.
  • the base paper 57 supplied from the supply device 11 has a ruled line for absorbing wrinkles at the time of molding by the first mold 21 as shown in FIG. It is formed at a position corresponding to 50 corners. Then, the base paper 57 on which the ruled lines are formed is transferred to the punching / pressing position A3 on the downstream side as it is.
  • the base paper 57 on which the ruled lines are formed is punched by the second mold 22 as a blank sheet of a desired shape such as a substantially square shape so as to include at least a part of the ruled lines at the punching / pressing position A3. It is. Further, the blank sheet thus punched is pressed into a container shape by the second mold 22 at that position, and the paper container 50 is formed.
  • FIG. 2 is a schematic cross-sectional view showing a first mold part of the paper container manufacturing apparatus shown in FIG. 1, showing a state before press crease processing
  • FIG. 3 is a schematic cross-sectional view of the line III-III indicated by.
  • the first mold 21 is composed of an upper mold 21a and a lower mold 21b, and is a mold having a square shape in plan view.
  • the upper mold 21a of the first mold 21 faces the upper support 18 of the pair of vertically moving devices, and the lower mold 21b of the first mold 21 faces the lower support 19, and the molds face each other. So that it is attached.
  • Each of the corners of the pressing end surface 26 of the upper die 21a of the first die 21 has a ruled line groove 28 for forming a ruled line, and the pressing end surface of the lower die 21b of the first die 21 is formed.
  • Ruled line blades 29 for forming ruled lines are formed radially at each of the corners of the mold 27.
  • the four gas cushions 23a to 23c are provided as correction means for correcting the facing distance between the upper mold 21a and the lower mold 21b of the first mold 21 so as to approach the original distance at a position corresponding to the corner portion of the first mold 21. 23d are respectively arranged.
  • FIG. 4 is a schematic sectional view showing a second mold part of the paper container manufacturing apparatus shown in FIG. 1, showing a state before punching and press forming.
  • the second mold 22 is composed of an upper mold 22a and a lower mold 22b, and is a mold having a square shape in plan view.
  • the upper mold 22a of the second mold 22 faces the upper support 18 of the pair of vertical moving devices, and the lower mold 22b of the second mold 22 faces the lower support 19, so that the molds face each other. Attached to.
  • the pressing end surface 36 of the upper die member 38 of the upper die 22a of the second die 22 is formed in a shape corresponding to, for example, the bottom 71 and the side wall 72 of the paper container 70 shown in FIG. .
  • the pressing end surface 37 of the lower die member 39 of the lower die 22b of the second die 22 is formed in a shape corresponding to the pressing end surface 36 of the upper die member 38 of the upper die 22a.
  • the upper mold member 38 of the upper mold 22 a of the second mold 22 is vertically movable with respect to the upper support 18.
  • An elevating member 31 is arranged on the outer peripheral side of the upper die member 38 of the upper mold 22a, and a lower outer diameter cutting edge (not shown) is provided at an outer edge of a lower end surface of the elevating member 31.
  • an outer frame member 32 that is vertically movable with respect to the upper support 18 is disposed on the outer peripheral side of the elevating member 31.
  • the upper end surface thereof is located below the lower end surface of the elevating member 31, and is vertically movable with respect to the lower support 19.
  • the curling member 33 is disposed.
  • a fixing member 34 whose upper end surface is located below the lower end surface of the outer frame member 32 is disposed on the outer peripheral side of the curling member 33.
  • An upper outer diameter cutting edge (not shown) is provided at an inner edge of the upper end surface of the fixing member 34.
  • the operation of the molding device 13 and the positional relationship between the dies during the press working will be schematically described.
  • the second mold 22 has lower rigidity than the first mold 21 as in the conventional case.
  • FIG. 5 is a schematic diagram showing a positional relationship between a first mold and a second mold during press working of the paper container manufacturing apparatus shown in FIG. 1, and (1) shows a state at the start of press working. (2) is a diagram showing a state immediately before sandwiching the base paper, and (3) is a diagram showing a state during pressing. In FIG. 5, the illustration of the base paper is omitted for clarity of the figure.
  • the upper mold of the first mold 21 is moved similarly to the conventional paper container manufacturing apparatus.
  • Each of the lower mold 21a, the lower mold 21b, and the upper mold 22a and the lower mold 22b of the second mold 22 sandwiches a base paper (not shown).
  • the facing distance between the upper die 21a and the lower die 21b of the first die 21 is the original distance at this time.
  • the second mold 22 there is no particular problem. The same can be said for the second mold 22.
  • the upper supports 18 of the pair of up-and-down moving devices 14 further include an upper mold 21a and a second mold 21 of the first mold 21 in the same manner as the conventional paper container manufacturing apparatus.
  • Each of the upper molds 22a of the second mold 22 is lowered, and the base paper (not shown) is subjected to press crease processing by the first mold 21 and punching and press forming by the second mold 22 in parallel. .
  • the upper support 18 as a whole is obliquely downward toward the second mold 22 due to the difference in compression strain between the first mold 21 and the second mold 22. Incline slightly.
  • a gap is generated between the upper mold 21a and the lower mold 21b of the first mold 21 slightly expanding toward the upstream side.
  • This gap is expected to be larger than the gap between the upper mold 22a and the lower mold 22b of the second mold 22.
  • the facing distance between the upper mold 21a and the lower mold 21b of the first mold 21 becomes non-uniform, and the original distance at that time cannot be maintained. Formation becomes uneven.
  • the gas cushions 23a to 23d act on the lower mold 21b of the first mold 21 and the upper mold 21a and the lower mold 21b of the first mold 21 are connected to each other. The opposing distance is corrected so as to approach the original distance at that time.
  • FIG. 6 is a schematic sectional view showing a part including the first mold of the apparatus for manufacturing the paper container shown in FIG. 1, and is a view showing a state during press crease processing.
  • the upper mold 21a of the first mold 21 is slightly inclined to the downstream side in accordance with the inclination of the upper support 18 at the stage of (3) in FIG. Therefore, the upper mold 21a of the first mold 21 contacts the downstream side of the lower mold 21b of the first mold 21 first, and a force is applied. Then, of the gas cushions 23a to 23d arranged on the lower surface of the lower mold 21b of the first mold 21, the rods 24b and 24d of the gas cushions 23b and 23d on the downstream side descend. In addition, the rods 24a, 24c of the gas cushions 23a, 23c on the upstream side rise correspondingly.
  • the stroke X of the rods 24a, 24c of the gas cushions 23a, 23c is longer than the stroke Y of the rods 24b, 24d of the gas cushions 23b, 23d.
  • the lower mold 21b of the first mold 21 follows the inclination of the upper mold 21a of the first mold 21, and as a result, the facing distance between the molds approaches the original distance at this time. Will be corrected.
  • FIG. 7 is a plan view showing the state of the base paper after the press crease processing by the first mold shown in FIG.
  • FIG. 8 is a schematic cross-sectional view showing a portion including the second mold of the apparatus for manufacturing the paper container shown in FIG. 1, showing a state during punching and press forming.
  • the base paper 57 transferred between the upper mold 22a and the lower mold 22b of the second mold 22 is moved to a predetermined position where the ruled line 55 shown in FIG. Stop at the position of. Then, according to the procedures (1) to (3) in FIG. 5, punching and press forming are performed with a predetermined compression force. Then, first, the upper outer diameter cutting edge of the elevating member 31 of the second mold 22 and the lower outer diameter cutting edge of the fixing member 34 of the second mold 22 are brought into sliding contact with each other, and the base paper 57 is cut into a desired shape. The sheet is punched.
  • the upper die member 38 of the second die 22 is further lowered while the blank sheet is punched out. Then, the blank sheet is pressed into a container shape by the pressing end faces 36 and 37 of the upper mold member 38 and the lower mold member 39 of the second mold 22. At this time, since a high-precision ruled line is formed in the blank sheet in the previous ruled line forming step, wrinkles are likely to be appropriately brought to the corners, and the quality at the time of molding can be stabilized.
  • the second sheet is moved from the position to the second mold 22a.
  • the upper mold 22a of the mold 22 is raised.
  • the upper support 18 is also inclined, but is inclined downstream, so that the upper mold 22a and the lower mold 22b of the second mold 22 generated by the inclination. Can be said to be relatively small, and the variation is small. In other words, it is considered that the variation in the gap is absorbed by the compression strain and the clearance of the second mold 22, and the problem that the facing distance does not become the original distance is hardly affected.
  • the accuracy of forming the ruled line 55 is improved. Is improved. Further, since the stroke changes according to the magnitude of the force applied to the gas cushions 23a to 23d, the inclination of the lower mold 21b follows the inclination of the upper mold 21a of the first mold 21. Further, since the four gas cushions 23a to 23d are arranged, correction is always performed by the gas cushions 23a to 23d irrespective of the inclination direction of the upper mold 21a of the first mold 21. Of the ruled line forming operation is further improved.
  • FIG. 9 is a schematic cross-sectional view showing a first mold portion of the paper container manufacturing apparatus according to the second embodiment of the present invention, showing a state before press crease processing. It is a figure corresponding to No. 2.
  • the paper container manufacturing apparatus has a configuration in which a gas cushion as correction means is replaced with a joint member 43 at a ruled line forming position A2.
  • Other configurations are the same as those of the first embodiment, and thus description thereof will not be repeated.
  • the paper container manufacturing apparatus is arranged between the lower surface of the lower mold 21b of the first mold 21 and the lower support 19 of the pair of vertical moving devices 14.
  • the joint member 43 is a correcting means for correcting the facing distance between the dies at the time of forming the ruled line so as to approach the original distance.
  • the joint member 43 includes an upper member 44 and a lower member 45, and the upper member 44 is rotatable with respect to the lower member 45 around a single shaft 46 through which the upper member 44 and the lower member 45 are inserted. It is connected.
  • the upper member 44 of the joint member 43 is attached to the center of the lower surface of the lower mold 21b of the first mold 21, and the lower member 45 of the joint member 43 is mounted on the lower support 19 of the vertical moving device 14. It is fixed in the corresponding position.
  • the shaft 46 is attached so that the axial direction of the shaft 46 is orthogonal to the upstream-downstream direction of the lower mold 21b of the first mold 21.
  • the lower mold 21b of the first mold 21 is rotatable (tilted) in the upstream-downstream direction.
  • a spring or the like is provided at a corner of the lower mold 21b of the first mold 21 although not shown. May be provided.
  • the press crease processing and the punching / press forming are performed by the first die and the second die attached to the pair of vertical moving devices.
  • another pressing process may be used, such as a configuration in which a heating process is performed as a first pressing process and a molding process is performed subsequently as a second pressing process.
  • the configuration is such that the strip-shaped base paper is subjected to the press crease processing and the punching / press forming.
  • the blank sheet punched into a predetermined shape from the beginning is subjected to the press crease processing and the press forming. Processing may be performed.
  • the correcting means is provided in the lower die of the first die, but is not limited to this. That is, at least one of the upper mold and the lower mold of the first mold and the upper mold and the lower mold of the second mold may be provided.
  • the stroke of the gas cushion which is the correcting means, changes according to the magnitude of the force applied to the gas cushion, so that the lower mold follows the upper mold.
  • the gas cushion may be operated by another method as long as the facing distance between the upper mold and the lower mold can be corrected so as to approach the original distance.
  • the correcting means is composed of a gas cushion or a joint member.
  • the entire mounting side of the mold is made of rubber, spring, or the like.
  • other means such as an oil cushion or a ball joint may be employed.
  • gas cushions are arranged at the corners of the lower mold of the first mold, but at least one gas cushion may be arranged.
  • the pressing process includes two pressing processes.
  • the pressing process includes three or more pressing processes, the die is attached to a pair of vertical moving devices. If so, the same can be applied.
  • each of the embodiments described above relates to a paper container manufacturing apparatus.
  • the embodiments described above also relate to a method of manufacturing a paper container using the paper container manufacturing apparatus of each of the above embodiments. The same applies.
  • each of the embodiments described above relates to a paper container manufacturing apparatus, but can be similarly applied to the embodiment of a paper container obtained by the paper container manufacturing apparatus of each of the above embodiments. .
  • a storage container that can be suitably used for storing foods and the like is obtained.

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Abstract

La présente invention concerne un dispositif de moulage (13) qui constitue une partie d'un dispositif de production de récipient en papier (10) et est équipé d'une paire de dispositifs verticalement mobiles (14), et auquel sont fixés, à partir du côté amont, une première matrice (21) qui est un moyen de rainage et une deuxième matrice (22) qui constitue un moyen de poinçonnage de feuille vierge et un moyen de pression. En outre, des coussins de gaz (23a-23d) sont positionnés au-dessous de la matrice inférieure (21b) de la première matrice (21). Le papier de départ (57) est alimenté en continu depuis un dispositif d'alimentation (11) vers le dispositif de moulage (13), et le rainage à un emplacement prescrit par la première matrice (21) et le poinçonnage de la feuille vierge et la formation de récipient par la deuxième matrice (22) sont effectués en parallèle dans l'ordre indiqué. De cette manière, les coussins de gaz (23a-23d) améliorent la précision de rainage, en corrigeant la distance entre la matrice supérieure (21a) de la première matrice (21) et la matrice inférieure (21b) de celle-ci de façon à s'approcher de la distance d'origine entre celles-ci, indépendamment de l'inclinaison du corps de support supérieur (18) des dispositifs verticalement mobiles (14).
PCT/JP2018/029862 2018-08-09 2018-08-09 Dispositif de production de récipient en papier, procédé de production de récipient en papier et récipient en papier WO2020031318A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230137305A (ko) 2021-02-10 2023-10-04 가부시키가이샤 시세이도 화장료

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5140882A (en) * 1990-02-06 1992-08-25 Peerless Machine & Tool Corporation Assembly for severing sheet material
JP2004136547A (ja) * 2002-10-17 2004-05-13 Rengo Co Ltd シート材の成形方法及びプレス用可動金型
JP2004231223A (ja) * 2003-01-29 2004-08-19 Shizuo Sato 果実類の紙製保護体
JP2011212882A (ja) * 2010-03-31 2011-10-27 Toyo Aluminum Ekco Products Kk 紙容器の製造方法及び製造装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5140882A (en) * 1990-02-06 1992-08-25 Peerless Machine & Tool Corporation Assembly for severing sheet material
JP2004136547A (ja) * 2002-10-17 2004-05-13 Rengo Co Ltd シート材の成形方法及びプレス用可動金型
JP2004231223A (ja) * 2003-01-29 2004-08-19 Shizuo Sato 果実類の紙製保護体
JP2011212882A (ja) * 2010-03-31 2011-10-27 Toyo Aluminum Ekco Products Kk 紙容器の製造方法及び製造装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230137305A (ko) 2021-02-10 2023-10-04 가부시키가이샤 시세이도 화장료

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