EP1221411B1 - Apparatus for continuously forming vacuum packaged body - Google Patents
Apparatus for continuously forming vacuum packaged body Download PDFInfo
- Publication number
- EP1221411B1 EP1221411B1 EP20010124398 EP01124398A EP1221411B1 EP 1221411 B1 EP1221411 B1 EP 1221411B1 EP 20010124398 EP20010124398 EP 20010124398 EP 01124398 A EP01124398 A EP 01124398A EP 1221411 B1 EP1221411 B1 EP 1221411B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seal
- tube film
- blocks
- packaged
- vacuum line
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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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
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
Definitions
- This invention relates to an apparatus for sequentially isolating and sealing a tube film storing a number of materials to be packaged at equal spaces in a column and moving between the respective materials to be packaged and simultaneously evacuating the interior of the tube film to continuously form a vacuum packaged body.
- U.S.Patent No. 4601159 discloses the technology where a longitudinally moving tube film is perpendicularly nipped by a pair of seal bars, and immediately before the respective materials to be packaged in the tube film are isolated and sealed, the tube film is cut by cutting edges incorporated in the seal bars, and the air in the tube film is removed through the cut portion to form a continuous vacuum packaged body.
- the details of the technology disclosed in the above specification are such that the tube film is cut between the front and rear materials to be packaged, the cut end parts are sucked to the dome-like wall inner surface to be largely opened, and the air in the tube film is removed from the opening parts.
- the positive opening of the cut end part is intended for heightening the efficiency of removing the air in the tube film, but unsuppressed opening for the tube film in the apparatus has high possibility of causing distortion at the open end part, so that even if the open edge is sealed by heat, the above distortion impairs air tightness of the sealed part to exert a bad influence upon the sealing performance of the vacuum packaged body.
- the above apparatus is adapted to cut a film opening part and remove the same, and heat-seal two new opposite cut ends of both sides of the removed part, resulting in the disadvantage of causing lowering of efficiency due to the waste of a film in cutting and removing the film and the complicatedness of operation process.
- the object of the invention is achieved by providing a packaging apparatus including a seal bar and a seal table for sealing a tube film in the direction right-angled to the direction of a track disposed in the midway of the track for transferring the tube film storing materials to be packaged at equal spaces in a column along the longitudinal direction, the apparatus being formed by
- the tube film for covering the materials to be packaged is nipped by the skirt part edges of the paired seal blocks.
- the plural intermittent teeth formed on the front side of the skirt parts as one points in the transfer direction of the material to be packaged spot close the tube film, and the vacuum suction force of the sub-vacuum line is applied to each port formed on the standing gap formed thin along the front side of the intermittent teeth to flare the tube film, so that the tube film forms a nipping gap between the respective intermittent teeth.
- the cutting edge provided on the seal bar installed in one seal block is forced into the receiving groove of the seal table in the other seal block to cut the tube film in the area surrounded by the skirt parts, and the air in the bag in front of the seal blocks is sucked through the spot closing gap from between the seal bar and the seal table into the main suction line through the receiving groove in the seal table.
- the tube film is thus flared by the sub-vacuum suction force to stick the tube film to the faces of the thin standing gap, and the air in the tube film is removed through the spot gap between the respective intermittent teeth, whereby the vibration of the tube film due to the removed air impact is restrained to prevent the film from being distorted, and the above inhibition of distortion eliminates cut-down of the film so as to prevent waste of the film.
- the sub-vacuum line and the main vacuum line are connected to a vacuum pump through a vacuum tank.
- the intermittent removal of air in the tube film corresponding to the pitch transfer of the material to be packaged is performed impulsively by pressure accumulation function of the vacuum tank so that the capability is not lowered.
- cooling water is passed through the intermittent teeth formed by the skirt parts of the seal blocks to be cooled.
- the material to be packaged in front of the seal blocks is pressed and supported by a block made of urethane foam.
- the shrinkage of the tube film due to removal of air through the spot gaps between the respective intermittent teeth causes the material to be packaged to necessarily move
- the material to be packaged is softly pressed and supported by the block made of urethane foam so that the shrinkage of the film more than needed is inhibited to restrain the generation of creases of the film and perform beautiful sealing.
- sealing strength can be increased.
- a tube film 20 in Fig. 1 is formed by rolling a belt-like film in a bag form-fill-sealing machine, and simultaneously a number of materials 21 to be packaged are stored at equal spaces in the interior thereof. While a pair of upper and lower seal blocks 22, 23 installed in the same packaging machine respectively displace along a dotted-line track 24 according to the transfer in the direction of an arrow of the above materials 21 to be packaged, they nip the tube film 20 between the materials 21 to be packaged to perform air suction and heat sealing action in the film.
- the constitution of the present embodiment will be described in the following.
- Fig. 2 shows the about left half of a frame structure supporting the above paired seal blocks 22, 23, and also in the right area not illustrated, the same structure symmetrical to the drawing continuously exists. That is, the above structure is so constructed that the upper and lower side of a pair of side plates 25 on both sides are connected by tie materials 26 to form a portal frame. Slide blocks 27 respectively fixed to the lower parts of the side plates 25 on both sides are slidably supported on a pair of horizontal guide rods 28, and both ends of the above both movable blocks 22, 23 are slidably supported on round post materials 29 respectively erected on both slide blocks 27.
- the portal frame is reciprocated along the guide rods 28 by a crank mechanism not shown.
- Fig. 3 shows the condition where the tube film 20 between the front and rear materials 21 to be packaged is nipped by the upper and lower seal blocks, and the upper seal block 22 is provided with a seal bar 35 mounted in a skirt part 39 continuously formed on the lower side thereof, the lower seal block 23 is provided with a seal table 36 mounted in a reverse skirt part 40 formed on the upper surface of the seal block 23, and the seal bar 35 and the seal block 36 respectively contain a pipe heater 37 for generating film welding heat.
- the front sides 39a, 40a of the respective skirt parts of the above both seal blocks in the transfer direction 38 of the material 21 to be packaged form a standing gap ranging from 1mm to 2mm between the opposite edges, the air 41 in the front tube film 20 can be circulated through the standing gap , and an embodiment of forming means for such a gap is as shown in the drawings mentioned later.
- FIG. 4 shows the front faces of the central parts of both seal blocks 22, 23, and Fig. 5 shows the perspective section of the lower seal block 23.
- a pair of attached blocks 42, 43 embedded in the above both seal blocks 22, 23 and fixed opposite to each other have plural intermittent teeth 44, 45 fastened upon the tube film at the inner edges thereof, a continuous standing gap 46 is formed between the outer edges of the intermittent teeth, and plural ports 47 formed on the upper and lower sides of the standing gap are connected to a sub-vacuum line 49 through passages 48.
- a first fluid cylinder 50 fixed to the upper seal block 22 vertically slides a cutting edge 51 mounted in the seal bar 35 and forces the cutting edge 51 into a receiving groove 52 of the seal table 36 in the lower area, thereby cutting the tube film.
- a first fluid cylinder 50 fixed to the upper seal block 22 vertically slides a cutting edge 51 mounted in the seal bar 35 and forces the cutting edge 51 into a receiving groove 52 of the seal table 36 in the lower area, thereby cutting the tube film.
- the'described sub-vacuum line 49 is connected to a vacuum tank 61 of designated capacity connected to a vacuum pump 60 through a normally-closed first opening and closing valve 62, and the described main vacuum line 63 is connected to the vacuum tank 61 through a normally-closed second opening and closing valve 64.
- the upper and lower movable blocks 22, 23 completely nip the tube film 20, and simultaneously when the vacuum pressure is applied to the sub-vacuum line 49 by opening the first opening and closing valve 62, the tube film is sucked to the upper and lower surfaces of the standing gap 46 in Fig. 4.
- a packing 65 mounted on the upper surface of the seal block 23 in Fig. 5 surrounds the receiving groove 52 formed in the seal table as shown in Fig.
- the upper seal block 22 is provided with soft pressing blocks 71, 72 made of urethane foam and fixed to the front and rear thereof.
- the tube film 20 is nipped by the relative approach of both upper and lower seal blocks 22, 23 and when the air in the tube film 20 is sucked, the pressing blocks 71, 72 press the material 21 to be packaged to the lower belt conveyers 73, 74, thereby inhibiting the shrinkage of the tube film caused by the described vacuum suction to the utmost.
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Vacuum Packaging (AREA)
Description
- This invention relates to an apparatus for sequentially isolating and sealing a tube film storing a number of materials to be packaged at equal spaces in a column and moving between the respective materials to be packaged and simultaneously evacuating the interior of the tube film to continuously form a vacuum packaged body.
- U.S.Patent No. 4601159 discloses the technology where a longitudinally moving tube film is perpendicularly nipped by a pair of seal bars, and immediately before the respective materials to be packaged in the tube film are isolated and sealed, the tube film is cut by cutting edges incorporated in the seal bars, and the air in the tube film is removed through the cut portion to form a continuous vacuum packaged body.
- The details of the technology disclosed in the above specification are such that the tube film is cut between the front and rear materials to be packaged, the cut end parts are sucked to the dome-like wall inner surface to be largely opened, and the air in the tube film is removed from the opening parts. The positive opening of the cut end part is intended for heightening the efficiency of removing the air in the tube film, but unsuppressed opening for the tube film in the apparatus has high possibility of causing distortion at the open end part, so that even if the open edge is sealed by heat, the above distortion impairs air tightness of the sealed part to exert a bad influence upon the sealing performance of the vacuum packaged body. Consequently, the above apparatus is adapted to cut a film opening part and remove the same, and heat-seal two new opposite cut ends of both sides of the removed part, resulting in the disadvantage of causing lowering of efficiency due to the waste of a film in cutting and removing the film and the complicatedness of operation process.
- It is an object of the invention to heighten the packaging efficiency by restraining distortion of a film cut part due to air vibration and performing high airtight sealing without distortion for the cut part to prevent wasteful removal of the film due to distortion in the case of cutting a tube film, and removing the air in the tube film by suction action from the cut part.
- The object of the invention is achieved by providing a packaging apparatus including a seal bar and a seal table for sealing a tube film in the direction right-angled to the direction of a track disposed in the midway of the track for transferring the tube film storing materials to be packaged at equal spaces in a column along the longitudinal direction, the apparatus being formed by
- I) a pair of seal blocks supporting the seal bar and the seal table outside the opposite surfaces of the seal bar and the seal table by the skirt parts thereof and supporting the same,
- II) means for spot closing the tube film by plural intermittent teeth at the inner sides of the skirt parts as one points in the transfer direction of materials to be packaged while the respective skirt part edges of both seal blocks nip the tube film corresponding to the pitch transfer of the materials to be packaged,
- III) a sub-vacuum line for applying vacuum suction force to each port formed on the faces of a standing gap to flare the tube film at the standing gap formed thin formed along the outside of the intermittent teeth,
- IV) a main vacuum line for pushing a cutting edge slidably disposed in the middle of the interior of the seal bar into a receiving groove cut in the seal table to cut the tube film in the area surrounded by the skirt parts and sucking the air in the bag in front of the seal blocks through the spot nipping gap from between the seal bars and the seal table through the receiving groove in the seal table, and
- V) means for welding the cut sides of the tube film by relative approach of the seal bar and the seal table after the above removal of air.
-
- According to the invention, every time the respective materials to be packaged are moved by one pitch, the tube film for covering the materials to be packaged is nipped by the skirt part edges of the paired seal blocks. In this case, the plural intermittent teeth formed on the front side of the skirt parts as one points in the transfer direction of the material to be packaged spot close the tube film, and the vacuum suction force of the sub-vacuum line is applied to each port formed on the standing gap formed thin along the front side of the intermittent teeth to flare the tube film, so that the tube film forms a nipping gap between the respective intermittent teeth. The cutting edge provided on the seal bar installed in one seal block is forced into the receiving groove of the seal table in the other seal block to cut the tube film in the area surrounded by the skirt parts, and the air in the bag in front of the seal blocks is sucked through the spot closing gap from between the seal bar and the seal table into the main suction line through the receiving groove in the seal table.
- The tube film is thus flared by the sub-vacuum suction force to stick the tube film to the faces of the thin standing gap, and the air in the tube film is removed through the spot gap between the respective intermittent teeth, whereby the vibration of the tube film due to the removed air impact is restrained to prevent the film from being distorted, and the above inhibition of distortion eliminates cut-down of the film so as to prevent waste of the film.
- In one preferred embodiment of the invention, the sub-vacuum line and the main vacuum line are connected to a vacuum pump through a vacuum tank. The intermittent removal of air in the tube film corresponding to the pitch transfer of the material to be packaged is performed impulsively by pressure accumulation function of the vacuum tank so that the capability is not lowered.
- In another preferred embodiment of the invention, cooling water is passed through the intermittent teeth formed by the skirt parts of the seal blocks to be cooled. In the case of spot nipping the film by the thus constructed intermittent teeth, there is possibility that dot-like cheloid is generated in the film by heat of the tips of the intermittent teeth conducted from the seal bar to spoil the beauty of sealing and sealing strength. Such a problem is solved by the above cooling.
- In still another embodiment of the invention, simultaneously with nipping the tube film by both seal blocks, the material to be packaged in front of the seal blocks is pressed and supported by a block made of urethane foam. Though the shrinkage of the tube film due to removal of air through the spot gaps between the respective intermittent teeth causes the material to be packaged to necessarily move, the material to be packaged is softly pressed and supported by the block made of urethane foam so that the shrinkage of the film more than needed is inhibited to restrain the generation of creases of the film and perform beautiful sealing. Thus, sealing strength can be increased.
-
- Fig. 1 is a schematic side view of an apparatus according to the invention:
- Fig. 2 is a partial front view of a frame supporting a seal block;
- Fig. 3 is a sectional view of a pair of movable blocks;
- Fig. 4 is a partial front view of a seal block;
- Fig. 5 is a perspective view showing the cut surface of the seal block;
- Fig. 6 is a diagram for explaining the packaged body nip part of a pair of seal blocks;
- Fig. 7 is a plan view showing the sealed part of the packaged body; and
- Fig. 8 is a side view of a tube film transport track.
-
- A
tube film 20 in Fig. 1 is formed by rolling a belt-like film in a bag form-fill-sealing machine, and simultaneously a number ofmaterials 21 to be packaged are stored at equal spaces in the interior thereof. While a pair of upper andlower seal blocks line track 24 according to the transfer in the direction of an arrow of theabove materials 21 to be packaged, they nip thetube film 20 between thematerials 21 to be packaged to perform air suction and heat sealing action in the film. The constitution of the present embodiment will be described in the following. - Fig. 2 shows the about left half of a frame structure supporting the above paired
seal blocks side plates 25 on both sides are connected bytie materials 26 to form a portal frame.Slide blocks 27 respectively fixed to the lower parts of theside plates 25 on both sides are slidably supported on a pair ofhorizontal guide rods 28, and both ends of the above bothmovable blocks post materials 29 respectively erected on bothslide blocks 27. On the other hand, the portal frame is reciprocated along theguide rods 28 by a crank mechanism not shown. - On the other hand, the rotation power transmitted from the outside to a
pinion 31 of amain shaft 30 rotatably installed on the frame vertically moves theupper seal block 22 along the roundpost material 29 through acrank lever 32 and a connectingrod 33 fixed to the end of themain shaft 30, and thelower seal block 23 is vertically moved along theround post material 29 by the eccentric motion of arod 34x tied round aneccentric cam 34 at the end of themain shaft 30. Accordingly, bothmovable blocks dotted line track 24 of Fig. 1. - Fig. 3 shows the condition where the
tube film 20 between the front andrear materials 21 to be packaged is nipped by the upper and lower seal blocks, and theupper seal block 22 is provided with aseal bar 35 mounted in askirt part 39 continuously formed on the lower side thereof, thelower seal block 23 is provided with a seal table 36 mounted in areverse skirt part 40 formed on the upper surface of theseal block 23, and theseal bar 35 and theseal block 36 respectively contain apipe heater 37 for generating film welding heat. - The front sides 39a, 40a of the respective skirt parts of the above both seal blocks in the
transfer direction 38 of thematerial 21 to be packaged form a standing gap ranging from 1mm to 2mm between the opposite edges, the air 41 in thefront tube film 20 can be circulated through the standing gap , and an embodiment of forming means for such a gap is as shown in the drawings mentioned later. - That is, Fig. 4 shows the front faces of the central parts of both
seal blocks lower seal block 23. A pair of attachedblocks seal blocks intermittent teeth continuous standing gap 46 is formed between the outer edges of the intermittent teeth, andplural ports 47 formed on the upper and lower sides of the standing gap are connected to asub-vacuum line 49 throughpassages 48. - It is apparent from Fig. 6 of an enlarged scale that by vacuum suction of the upper and
lower passages 48, thetube film 20 is sucked to the upper and lower surfaces of the standinggap 46 ranging from 1mm to 2mm and forced open. In this case, the upper and lowerintermittent teeth 45 spot close thetube film 20 to limit random expansion, thereby preventing occurrence of distortion in the tube film. In this case, cooling water flowing through adrain passage 69 penetrating the attached blocks in the lateral direction prevents heat transfer from the seal bar or the seal table to theintermittent teeth 45. - In Fig. 2, a
first fluid cylinder 50 fixed to theupper seal block 22 vertically slides acutting edge 51 mounted in theseal bar 35 and forces thecutting edge 51 into a receivinggroove 52 of the seal table 36 in the lower area, thereby cutting the tube film. Such a condition is known from Fig. 3 in which when thecutting edge 51 is forced into the lower receivinggroove 52 to cut the tube film, the air in thetube film 20 at the front is drawn out into themain vacuum line 53 through the above receivinggroove 52. - As shown in Fig. 1, the'described
sub-vacuum line 49 is connected to avacuum tank 61 of designated capacity connected to avacuum pump 60 through a normally-closed first opening andclosing valve 62, and the describedmain vacuum line 63 is connected to thevacuum tank 61 through a normally-closed second opening andclosing valve 64. The upper and lowermovable blocks tube film 20, and simultaneously when the vacuum pressure is applied to thesub-vacuum line 49 by opening the first opening andclosing valve 62, the tube film is sucked to the upper and lower surfaces of the standinggap 46 in Fig. 4. In this case, apacking 65 mounted on the upper surface of theseal block 23 in Fig. 5 surrounds thereceiving groove 52 formed in the seal table as shown in Fig. 7, and the air in the tube film opened by cutting operation of the cutting edge is passed between the respectivespot nipping parts 44 and drawn out toward thetank 61 simultaneously with opening of the second opening andclosing valve 64 in Fig. 1. The suction in this case is impulsively performed by the capacity action of thevacuum tank 61, and subsequently, theseal bar 35 moved downward by asecond fluid cylinder 66 in Fig. 2 is pressed to the seal table 36 to seal the opening part of the tube film. - As shown in Fig. 8, the
upper seal block 22 is provided with softpressing blocks tube film 20 is nipped by the relative approach of both upper andlower seal blocks tube film 20 is sucked, thepressing blocks material 21 to be packaged to thelower belt conveyers 73, 74, thereby inhibiting the shrinkage of the tube film caused by the described vacuum suction to the utmost.
Claims (5)
- A packaging apparatus, comprising a seal bar (35) and a seal table (36) disposed in the midway of a track for transferring a tube film (20) storing materials (21) to be packaged at equal spaces in a column along the longitudinal direction for sealing said tube film in the direction right-angled to the track direction, wherein said packaging apparatus comprises:I) a pair of seal blocks (22, 23) surrounding said seal bar (35) and seal table (36) outside the opposite surfaces of said seal bar and seal table respectively by the skirt parts (39, 40) thereof and supporting the same;II) means for spot closing said tube film (20) by plural intermittent teeth (44, 45) on the inner sides of said skirt parts (39, 40) as one points in the transfer direction of materials to be packaged while the respective skirt part edges of both of said seal blocks (22, 23) nip said tube film (20) corresponding to the pitch transfer of said materials to be packaged;III) a sub-vacuum line (49) for applying vacuum suction force to each port formed on a standing gap (46) to flare said tube film at said standing gap formed thin along the outsides of said intermittent teeth (44, 45);IV) a main vacuum line (53) for forcing a cutting edge (51) stably disposed in the middle of the interior of said seal bar (35) into a receiving groove (52) cut in said seal table (36) to cut said tube film (20) in an area surrounded by said skirt parts (39, 40), and sucking the air in a bag in front of said seal blocks (22, 23) through said spot closing gap from said seal bar and said seal table through said receiving groove in said seal table; andV) means (37) for welding the cut sides of said tube film (20) by the relative approach of said seal bar (35) and said seal table (36) after said removal of air.
- The apparatus according to Claim 1, wherein corresponding to the operation of nipping said tube film (20) between two front and rear materials (21) to be packaged in said tube film by a pair of movable blocks (22, 23), first a first opening and closing valve (62) mounted between said sub-vacuum line (49) and a vacuum pump (60) is opened, and then a second opening and closing valve (64) mounted between said main vacuum line (53) and said vacuum pump (60) is opened.
- The apparatus according to Claim 2, wherein said sub-vacuum line (49) and said main vacuum line (53) are connected to said vacuum pump (60) through a vacuum tank (61).
- The apparatus according to Claim 1, wherein intermittent teeth (44, 45) formed by said skirt parts (39, 40) of said seal blocks (22, 23) are provided with cooling means (69) for inhibiting transfer of heating heat of said seal bar mounted in the interior of said skirt part.
- The apparatus according to Claim 1, wherein simultaneously with nipping said tube film (20) by'both of said seal blocks (22, 23), a material (21) to be packaged in front of said seal blocks is pushed and supported by blocks (71, 72) made of urethane foam.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001000008A JP3707538B2 (en) | 2001-01-04 | 2001-01-04 | Equipment for continuously forming vacuum packaging |
JP2001000008 | 2001-01-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1221411A1 EP1221411A1 (en) | 2002-07-10 |
EP1221411B1 true EP1221411B1 (en) | 2004-05-06 |
Family
ID=18868901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20010124398 Expired - Lifetime EP1221411B1 (en) | 2001-01-04 | 2001-10-25 | Apparatus for continuously forming vacuum packaged body |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1221411B1 (en) |
JP (1) | JP3707538B2 (en) |
DE (1) | DE60103120T2 (en) |
ES (1) | ES2220644T3 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4904948B2 (en) | 2006-07-04 | 2012-03-28 | 住友化学株式会社 | Method for producing intermediate alcohol compound |
GB2481620B (en) * | 2010-07-01 | 2012-08-08 | Sheng-Nan Guo | Vertical vacuum packing machine |
NL2006393C2 (en) * | 2011-03-15 | 2012-09-18 | Gks Packaging B V | Vacuum packaging apparatus. |
EP2907760B1 (en) * | 2014-02-14 | 2016-06-08 | Ulma Packaging Technological Center, S.Coop. | Method and machine for vacuum packaging a product |
US20190193881A1 (en) * | 2014-11-05 | 2019-06-27 | Cryovac, Inc. | Process and apparatus for gas extraction in packaging |
CN106043797B (en) * | 2016-08-19 | 2018-01-23 | 天津开发区合普工贸有限公司 | The innoxious vacuum packaging equipment of experimental animal carcass |
CN109515879A (en) * | 2018-12-14 | 2019-03-26 | 广州市永合祥自动化设备科技有限公司 | Cutter structure and envelope method |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1178958A (en) * | 1956-07-20 | 1959-05-19 | S C I P E R | Process and machine for filling sachets of heat-sealable material |
GB2164315B (en) | 1984-09-14 | 1988-05-11 | Grace W R & Co | Form-fill-seal machine and method with capability for providing a vacuum or inert gas atmosphere within the package |
-
2001
- 2001-01-04 JP JP2001000008A patent/JP3707538B2/en not_active Expired - Fee Related
- 2001-10-25 EP EP20010124398 patent/EP1221411B1/en not_active Expired - Lifetime
- 2001-10-25 ES ES01124398T patent/ES2220644T3/en not_active Expired - Lifetime
- 2001-10-25 DE DE2001603120 patent/DE60103120T2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE60103120T2 (en) | 2005-04-28 |
DE60103120D1 (en) | 2004-06-09 |
ES2220644T3 (en) | 2004-12-16 |
JP2002205710A (en) | 2002-07-23 |
JP3707538B2 (en) | 2005-10-19 |
EP1221411A1 (en) | 2002-07-10 |
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