WO2004058568A1 - 柔軟性チューブの端部シール装置及び端部シール方法 - Google Patents
柔軟性チューブの端部シール装置及び端部シール方法 Download PDFInfo
- Publication number
- WO2004058568A1 WO2004058568A1 PCT/JP2002/013474 JP0213474W WO2004058568A1 WO 2004058568 A1 WO2004058568 A1 WO 2004058568A1 JP 0213474 W JP0213474 W JP 0213474W WO 2004058568 A1 WO2004058568 A1 WO 2004058568A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- open end
- sealing
- flexible tube
- cutting
- end part
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B7/00—Closing containers or receptacles after filling
- B65B7/14—Closing collapsible or resilient tubes, e.g. for tooth paste, for lighter fuel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
Definitions
- the present invention relates to an end sealing device and an end sealing method for a flexible tube.
- the present invention is applicable to cosmetics, toys, medical products, industrial products, etc.
- the present invention relates to improvements in squeezed tubes and blow-molded flexible tubes, and in particular, a flexible tube capable of forming the open end of the tube into a smooth R shape.
- the present invention relates to a flexible tube end sealing device and method.
- This type of tube is a hollow cylindrical container made of a flexible material such as polyurethane, with a cap attached at one end, filling the contents from the other end, and sealing this end. It will be commercialized.
- Processing methods for hermetically sealing the end of the flexible tube include heat sealing, ultrasonic sealing, and high frequency sealing.
- heat seal processing such as a temporary clamp method, a hot air method, and a heat clamp method.
- the temporary clamp method forms the mainstream of tube sealing, leaving the sealed part of the tube at the top and sandwiching it in a straight line with a clamp.
- This is a processing means for pressure-sealing the melted part with a stirrer.
- This heat-sealing process can be performed by simple work, heat management is not so difficult, and the running cost of type change is low. Therefore, other processing methods and other methods of heat-sealing are used. At present, it is the most widely used processing method.
- ultrasonic sealing and high frequency sealing there are some that cut the remaining upper part after sealing.
- the heat sealing process had the following issues. ' In other words, when the melted seal end is sandwiched by an end seal device and pressure-sealed, the tube material at the end protrudes beyond the original width of the seal, and protrusions are formed at the left and right corners of the seal. Is Rukoto.
- the heat dissolution time of the seal portion is long, or when a tube material that is easy to melt and flows easily is used, the dripping phenomenon of the tupe material due to gravity at the left and right corners of the seal end. Will happen. In this state, when the seal end is pressed and sealed, the protrusions on the left and right ends of the seal become more prominent, and these protrusions may cause scratches on human skin or break the shrink wrap.
- the present inventor has previously invented a method and an apparatus for forming an end portion of a flexible squeezed tube using heat sealing (Japanese Patent Application Laid-Open No. 10-230948).
- this molding method when the end of the seal is sandwiched and crushed by using an end seal device, the melted seal end is introduced into a mold formed of a male mold and a female mold, so that both ends are formed.
- This is a method of molding into an arbitrary R shape.
- a single-walled tube can be sufficiently sealed, but a multi-layered tube has a problem that a gap-like pattern or an upper entanglement caused by a difference in material is easily formed on the seal surface. Had left.
- the method called the hot air method is a method in which only the inside of the end to be sealed is melted and pressed, and cut into an arbitrary shape.
- the hot air method hot air is applied to the upper inside of the tube. Therefore, this heat may adversely affect the product filled in the tube.
- the processing means that cuts after sealing the end of the seal such as the above-mentioned ultrasonic sealing and high frequency sealing, etc., the cut end is cut off. Since the cut edge has a sharp edge, the touch becomes poor, and there is a possibility that the virgin film covering the surface of the tube may be adversely affected.
- the present invention has been created to solve the above-mentioned problems, and has improved the temporary clamping method of heat sealing, so that the sealing end portion can be formed by a very simple operation irrespective of a single-layer tube and a multilayer tube.
- the end of a flexible tube that can be formed into an arbitrary shape and this end can be processed smoothly, and the seal strength is stable, and it is suitable for high-mix low-volume production by frequent model changes. It is an object of the present invention to provide a part sealing device and a method thereof. Disclosure of the invention
- an end sealing device of the present invention is a device for hermetically sealing an open end of a flexible tube P, wherein the position of the open end P1 of the flexible tube P is adjusted. Then, a clamping device 10 for temporary clamping, a force cutting device 20 for cutting the temporarily clamped open end P1 into an arbitrary shape, and a melting device 30 for melting the cut open end P1. The melted open end portion is provided with an end seal device 40 for press-fitting and sealingly joining P1.
- the cutting device 20 is a fixed blade 21 that is integrally clamped from both ends of the provisionally clamped open end P1 to the upper end, or is freely shaped from both ends of the open end P1 to the upper end. It is equipped with an adjusting blade for cutting.
- the dissolving device 30 is a means for solving the problem by employing any one of the heating means, hot air means, and welder means.
- the end seal method is flexible. Adjust the position of the open end of the In the method of heat sealing after the ramp, a cutting step of cutting the temporarily clamped opening end into an arbitrary shape, a melting step of heat-melting the cut opening end, and crimping of the melted opening end And a sealing step of sealing and joining.
- FIG. 1 is a perspective view showing a state in which the flexible tube of the present invention is filled with contents.
- FIG. 2 is a perspective view of a main part showing a state where the position of the opening end of the flexible tube is adjusted by the positioning jig of the present invention.
- FIG. 3 is a side view showing a state where the opening end portion temporarily clamped by the cutting device of the present invention is cut.
- FIG. 4 is a front view showing a state where the opening end portion temporarily clamped by the cutting device of the present invention is cut.
- FIG. 5 is a side view showing the fixed blade of the cutting device of the present invention.
- FIG. 6 is a plan view showing a fixed blade of the cutting device of the present invention.
- FIG. 7 is a plan view showing a position example of the end sealing device according to the present invention.
- FIG. 8 is a side view showing a position embodiment of the end sealing device according to the present invention.
- FIG. 9 is a side view showing a sealing state by the end seal device according to the present invention.
- FIG. 10 is a front view showing a sealed state by the end seal device according to the present invention.
- FIG. 11 is a front view of a flexible tube, (a) shows a flexible tube manufactured according to the present invention, and (mouth) shows a flexible tube manufactured by a conventional apparatus.
- the main structure of the device of the present invention is composed of a clamping device 10, a cutting device 20, a melting device 30, and an end sealing device 40 (see FIGS. 7 and 8).
- the flexible tube P sealed by the present invention is formed of a flexible material such as polyurethane resin, and basically has a cap Q attached at one end and a tubular body at an intermediate portion. P2 is formed, and the other end is an open end P1 (see FIG. 1 or FIG. 11).
- the clamping device 10 is a device for temporarily clamping after adjusting the position of the open end P1 of the flexible tube P (see FIG. 2).
- This clamp device 10 is a device that crushes the open end P1 of the flexible tube P flat and pinches it in a straight line.
- a clamp device 10 composed of a guide blade 11 and a temporary clamp 12 is provided.
- the guide blade 11 is composed of two flat plates that are fixed in a “C” cross section.
- the 'temporary clamp 12' is formed of a pair of rod-shaped members having opposing surfaces formed in a planar shape and provided above the guide blades 11.
- the opening end P 1 of the flexible tube P pushed up by the operation of the tube push-up device 2 is crushed flat by gradually coming into contact with the inside of the guide blade 11, and The blade protrudes from the upper end of the blade 11 (see (a) in the figure).
- the open end P1 is linearly clamped by the clamp claws 12 (see (c) in the figure). In this state, the flexible tube P is transferred to the sealing disk 3.
- a positioning jig 13 is provided to accurately adjust the position of the opening end P1 with respect to the temporary clamp 12 (see FIG. 2).
- the positioning jig 13 includes a support portion 13a and a pair of left and right positioning claws 13b.
- the support part 13a can be moved vertically above the temporary clamp 12 via a lifting mechanism (not shown) with the positioning claw 13b supported on the lower surface. It is prepared for Noh.
- the positioning claw 13b is configured by a thin plate or a pin to have a size that can be inserted into the gap P1a at the opening end P1.
- the positioning claw 13b is fixedly or movably supported by the support portion 13a.
- the opening claw P 1a formed on the left and right sides formed when the open end P 1 of the flexible tube P is flatly crushed by the guide blade 11 see FIG. 2 (a)
- the opening end P1 is positioned (see (mouth) in the figure).
- the positioning jig 13 is lifted and removed from the opening end P1 (see FIG. 3C).
- the cutting device 20 is a device for cutting the temporarily clamped open end P1 into an arbitrary shape (see FIGS. 3 to 6).
- the cutting device 20 shown in FIG. 3 and FIG. 4 shows the adjusting blade 22 whose both ends are independent.
- the cutting position can be adjusted according to the diameter of the flexible tube P.
- the cutting device 20 shown in FIG. 5 and FIG. 6 is provided with a fixed blade 21 which is integrally pressed from both ends of the provisionally clamped open end P1 to the upper end.
- the fixed blade 21 is composed of a female die 21A and a male die 21B, and linearly presses both ends of the open end P1.
- the melting device 30 is a device that melts the cut open end P1 (see FIGS. 7 and 8).
- a heating device is used. That is, after the opening end P1 is cut into an arbitrary shape, the sealing disk 3 is rotated, and the opening end P1 of the flexible tube P is moved below the heating and cooling device, and the heating and cooling is performed.
- the open end P1 is heat-melted with a device.
- a dissolving means such as a hot air means or a welder means in place of the heating device (not shown).
- the end seal device 40 is a device that heat-melts the open end portion P1 and then press-bonds the melted open end portion P1 to perform seal joining (see FIGS. 9 and 10). Rotate the sealing disk 3 to move the open end P 1 of the flexible tube P to the position of the end seal device 40, and press the end 20 a to be thermally melted by the end seal device 40. Weld and hermetically seal (see Figures 7 and 8).
- a tube transport table 1, a tube push-up device 2, and a sealing disk 3 are provided (see FIGS. 7 and 8).
- the tube transfer table 1 rotatably holds the flexible tube P held by the holding portion 6a on the tube transfer table 1 and rotates the temporary clamp device 2 downward (above the tube push-up device 2). Things.
- the tube push-up device 2 pushes up the flexible tube 20 upward and abuts the inside of the guide blade 11 of the temporary clamp 12 located above the flexible tube 20.
- the sealing disk 3 has an appropriate number of temporary clamps 12, and the opening end P 1, which is linearly clamped by the temporary clamps 12, has a cutting device 20, a melting device 30, and an end seal.
- the edge sealing method of the present invention is a sealing method having a cutting step, a melting step, and a sealing step.
- the following preparation process is included as a pre-process of the cutting process.
- the cap 3 is attached to one end of the flexible tube P, and the filling nozzle 4 inserted from the opening 8 opens the contents 9 such as liquid or creamy cosmetics 9 in the body 6. Fill (see Fig. 1).
- the process is also included (see Figure 2). After such a preparation process, it moves to the next cutting process.
- the open end P 1 of the temporarily clamped flexible tube P is cut into an arbitrary shape (see FIG. 3).
- This step is the most important step of the present invention, and it is possible to cut both ends which are liable to drip in advance in this step, and to force the open end P1 into an arbitrary shape. However, in order to maintain the sealing strength, it is necessary to leave necessary minimum projections at both ends of the open end P1.
- the open end P1 of the flexible tube P is melted by the melting device 30 (not shown).
- the melting device 30 a heating means, a hot air means, and a welding means are selected.
- the cut edges and corners of the open end P1 can be melted and formed into a smooth R shape by the action of gravity.
- This step is a general step as a conventional heat seal application, and is an operation of sandwiching and crushing the end seal device 40 between a pair of flat plates.
- the end seal device 40 is the opposite surface Is formed of a pair of flat plates formed in a planar shape, and patterns such as vertical lines and oblique lines may be engraved on opposing surfaces.
- the end sealing method of the present invention there is a melting step of thermally melting the cut open end P1 after the force cutting step of cutting the provisionally clamped open end P1 into an arbitrary shape.
- the open end P1 of the flexible tube P can be made smooth. As a result, the feeling of touch at the open end P1 is improved, and there is no risk of damaging the film / packaging material such that the commercial value is impaired.
- the end sealing device of the present invention includes a force cutting device 20 for cutting the temporarily clamped open end P1 into an arbitrary shape, and a melting device 30 for melting the cut open end P1. And the end seal device 40 for press-fitting and sealing the melted open end P1 to form a seal end with an extremely simple operation.
- the sealing since the sealing is finally performed by the end sealing device 40, the sealing strength is extremely stable. As a result, it has become possible to achieve high quality seals at low cost.
- a temporary clamping device for heat sealing which is most widely used in the past can be used, the device of the present invention can be provided at extremely low cost.
- the temporary clamping device 20 is connected to both ends of the temporarily clamped open end P1.
- the fixed blade 21 that is integrally pressed from the upper end to the upper end, a stable cut edge can be formed, and the fixed blade 21 can be changed according to frequent remodeling.
- the adjusting blade 22 that can be shaped freely from both ends of the opening end P1 to the upper end thereof, the cutting shape of the opening end P1 can be arbitrarily adjusted. This adjusting blade can be adjusted according to frequent model changes. Therefore, in any case, it is suitable for high-mix low-volume production.
- the melting device 30 can employ any one of a heating device, a hot air device, and an elder device, and the device of the present invention can be diverted to any processing device. Is also possible.
- the seal end As described above, according to the present invention, regardless of the single-layer tube and the multi-layer tube, it is possible to form the shape of the seal end into an arbitrary shape by an extremely simple operation and to smoothly process the end, In addition, the seal strength is stable, and various useful effects such as suitability for high-mix low-volume production due to frequent remodeling are exhibited.
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- Mechanical Engineering (AREA)
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2002/013474 WO2004058568A1 (ja) | 2002-12-25 | 2002-12-25 | 柔軟性チューブの端部シール装置及び端部シール方法 |
AU2002368509A AU2002368509A1 (en) | 2002-12-25 | 2002-12-25 | End sealing device and end sealing method of flexible tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2002/013474 WO2004058568A1 (ja) | 2002-12-25 | 2002-12-25 | 柔軟性チューブの端部シール装置及び端部シール方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004058568A1 true WO2004058568A1 (ja) | 2004-07-15 |
Family
ID=32676941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/013474 WO2004058568A1 (ja) | 2002-12-25 | 2002-12-25 | 柔軟性チューブの端部シール装置及び端部シール方法 |
Country Status (2)
Country | Link |
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AU (1) | AU2002368509A1 (ja) |
WO (1) | WO2004058568A1 (ja) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6193029A (ja) * | 1984-10-02 | 1986-05-12 | 武内プレス工業株式会社 | 合成樹脂製チユ−ブのシ−ル方法およびシ−ル装置 |
JPH0298504A (ja) * | 1988-09-29 | 1990-04-10 | Oshio Sangyo Kk | プラスチック製容器のシール方法 |
JP3028826U (ja) * | 1996-03-08 | 1996-09-13 | ジェイオーコスメティックス株式会社 | チューブ容器 |
JPH08300477A (ja) * | 1995-04-28 | 1996-11-19 | Yoshino Kogyosho Co Ltd | アルミラミネートチューブ体のシール部成形方法とシール部成形装置 |
JPH10230948A (ja) * | 1997-02-18 | 1998-09-02 | Akimoto Sanki Kk | 柔軟性絞り出しチューブの端部成型方法及び装置 |
JPH11268702A (ja) * | 1998-03-19 | 1999-10-05 | Pola Chem Ind Inc | 合成樹脂シート容器のシール方法およびシール装置 |
JP3068213U (ja) * | 1999-10-14 | 2000-04-28 | みづほ工業株式会社 | カッティング機構および該カッティング機構を用いるチュ―ブ充填機 |
JP2003026126A (ja) * | 2001-07-10 | 2003-01-29 | Akimoto Sanki Kk | 柔軟性チューブの端部シール装置及び端部シール方法 |
-
2002
- 2002-12-25 WO PCT/JP2002/013474 patent/WO2004058568A1/ja not_active Application Discontinuation
- 2002-12-25 AU AU2002368509A patent/AU2002368509A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6193029A (ja) * | 1984-10-02 | 1986-05-12 | 武内プレス工業株式会社 | 合成樹脂製チユ−ブのシ−ル方法およびシ−ル装置 |
JPH0298504A (ja) * | 1988-09-29 | 1990-04-10 | Oshio Sangyo Kk | プラスチック製容器のシール方法 |
JPH08300477A (ja) * | 1995-04-28 | 1996-11-19 | Yoshino Kogyosho Co Ltd | アルミラミネートチューブ体のシール部成形方法とシール部成形装置 |
JP3028826U (ja) * | 1996-03-08 | 1996-09-13 | ジェイオーコスメティックス株式会社 | チューブ容器 |
JPH10230948A (ja) * | 1997-02-18 | 1998-09-02 | Akimoto Sanki Kk | 柔軟性絞り出しチューブの端部成型方法及び装置 |
JPH11268702A (ja) * | 1998-03-19 | 1999-10-05 | Pola Chem Ind Inc | 合成樹脂シート容器のシール方法およびシール装置 |
JP3068213U (ja) * | 1999-10-14 | 2000-04-28 | みづほ工業株式会社 | カッティング機構および該カッティング機構を用いるチュ―ブ充填機 |
JP2003026126A (ja) * | 2001-07-10 | 2003-01-29 | Akimoto Sanki Kk | 柔軟性チューブの端部シール装置及び端部シール方法 |
Also Published As
Publication number | Publication date |
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AU2002368509A1 (en) | 2004-07-22 |
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