CN108792240B - Filling tube for filling and venting valve bags - Google Patents
Filling tube for filling and venting valve bags Download PDFInfo
- Publication number
- CN108792240B CN108792240B CN201810419622.6A CN201810419622A CN108792240B CN 108792240 B CN108792240 B CN 108792240B CN 201810419622 A CN201810419622 A CN 201810419622A CN 108792240 B CN108792240 B CN 108792240B
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- CN
- China
- Prior art keywords
- filling tube
- channel
- filling
- opening
- extends
- 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.)
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Classifications
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- 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
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
- B65B1/18—Methods of, or means for, filling the material into the containers or receptacles for filling valve-bags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/14—Valve bags, i.e. with valves for filling
-
- 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
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/28—Controlling escape of air or dust from containers or receptacles during filling
-
- 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
- B65B31/044—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 the nozzles being combined with a filling device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
-
- 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
- B65B2210/00—Specific aspects of the packaging machine
- B65B2210/10—Means for removing bridges formed by the material or article, e.g. anti-clogging devices
-
- 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
- B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
- B65B39/02—Expansible or contractible nozzles, funnels, or guides
Abstract
The invention relates to a filling tube for filling and venting a valve bag, having a front end with a filling opening and a rear end for fastening to a filling machine, having a filling channel surrounded by a filling tube wall, wherein the filling tube has at least one channel which is at least partially embedded in the filling tube wall and which extends in each case from a connection opening arranged at the rear end in the direction of the front end.
Description
Technical Field
The invention relates to a filling tube for filling and venting of valve bags, having a front end with a filling opening and a rear end for fixing at a filling machine, having a filling channel surrounded by a filling tube wall.
Background
Such a filler tube is known from DE 4426080C 2, and in the embodiment described there the filler tube is welded from a plurality of metal parts. Adjacent to the filling channel, a further channel is provided for free blowing of the filling tube or suction of air from the valve bag to be filled. This previously known construction is cumbersome, expensive and only allows a relatively simple design of the channel.
Disclosure of Invention
The object of the present invention is to improve the known filling tube in such a way that the production can be carried out more simply and cost-effectively and the optimum configuration of the channel is easier.
This object is achieved according to the invention in a filling tube of the generic type in that the filling tube has at least one channel which is at least partially embedded in the filling tube wall and which extends in each case from a connecting opening arranged at the rear end in the direction of the front end, the at least one channel can comprise a ventilation channel which extends up to a ventilation opening which is arranged adjacent to the filling opening and leads to the outside of the filling tube, and/or a ventilation channel which extends up to a ventilation opening which is arranged in the central region of the filling tube and merges into the filling channel, and/or a blowing channel for a blowing sleeve (Bl ä hmanstete) which extends up to a blowing opening which is arranged in the central region of the filling tube and leads to the outside of the filling tube.
The filling tube can be one-piece and in particular made by means of an additive manufacturing method.
By the measure according to the invention of embedding one or more channels in the filling tube wall of a filling tube which is one-piece and manufactured in particular by means of an additive manufacturing method, a suitable constructional possibility for the trend and arrangement of the channels is obtained, while the inner side of the filling tube wall forming the filling channel can be of smooth and substantially cylindrical construction.
In the context of the present invention, the term "additive manufacturing method (3D printing)" includes in particular the following methods: such as Electron Beam Melting (EBM) for processing metals, Fused Deposition Modeling (FDM), in which, for example, ABS or polylactide is processed, layered object forming (LOM) in the case of paper, plastic, ceramic or aluminum, laser near net shaping (LENS) or laser build-up welding (metal working), multiple injection molding (MJM) in the processing of thermoplastics, photopolymers, sand, metal or glass powder, polyamide castings, selective Laser Melting (SLM) in processing metals, plastics or ceramics, laser beam melting, wherein thermoplastics such as polycarbonate, polyamide or polyvinyl chloride or metals or ceramics are processed, space Puzzle Molding (SPM) in processing plastics, stereolithography (STL or SLA) in processing liquid thermosets or elastomers, or finally binder jetting, where powders and granules are processed.
Provision can be made for the at least one channel to be arranged in jumps, in other words: in a course of the at least one channel in a direction proceeding from the connection opening arranged at the rear end toward the front end, at least one change in direction is obtained, wherein the change in direction can be carried out in a circumferential direction and/or in a radial direction with respect to the longitudinal axis of the filling tube. For example, the change in direction of the at least one channel can proceed from a profile parallel to the longitudinal direction into a profile at an angle to the longitudinal direction or into a profile transverse to the longitudinal direction, i.e. in the circumferential direction or in the radial direction, or vice versa. Multiple directional changes of the same channel are also possible.
Provision can be made for the connection opening to extend in the radial direction with respect to the longitudinal axis of the filling tube.
A filling tube retaining disc can be integrally formed with the filling tube at the rear end, the filling tube retaining disc being arranged in a plane perpendicular to the longitudinal axis of the filling tube.
The vent channel can be joined at a front end into an annular channel embedded in the fill tube wall, the annular channel extending in a circumferential direction and being connected with the one or more vent openings.
The filling tube wall can taper at the front end into a rounded plug-in nose, from which a filling opening is cut out.
It can be provided that the bag guide tab is arranged to extend in the region of the filling opening. The bag guide tab can extend from the tip region of the plug-in nose to the rear edge of the filling opening. The bag guide tab can be formed by a rib extending in a plane containing the longitudinal axis of the fill tube.
Alternatively, a plurality of bag guide webs can be formed, which each emanate from the tip region of the plug-in nose and extend at an acute angle to the longitudinal axis of the delivery tube in the direction of the rear edge of the filling opening.
An air supply channel embedded in the filling tube wall can be provided, which extends from the rear end up to an air supply opening, which merges into the filling channel in the region between the rear end and the ventilation opening.
The air supply channel can have an annular channel section extending in the circumferential direction and a plurality of channel sections extending in the longitudinal direction, wherein at least one air supply opening which merges into the filling channel branches off from each channel section. Each channel section can have a series of air supply openings extending in the longitudinal direction, which merge into the filling channel.
It is expediently provided that at least two channels, for example the aeration channel, the ventilation channel, the blowing channel and/or, if appropriate, the air supply channel, extend at least partially at different circumferential positions in the filling tube wall, or in other words are arranged side by side, viewed in the circumferential direction. It is possible that two or more channels or channel segments extend at least partially at uniform circumferential positions in the filling tube wall and, in other words, are arranged one above the other and/or cross one another, viewed partially in the radial direction.
In addition, it can be provided that at least one channel, the ventilation channel, the blowing channel and/or, if appropriate, the air supply channel, extends at different radial positions in the filling tube wall over its or their longitudinal extent.
Provision can be made for the ventilation channel to extend in the region of the base of the expansion shell in a position with a smaller radius than at the rear end.
Drawings
Further advantages and features of the invention result from the following description of embodiments, with reference to the accompanying drawings, in which:
figure 1 shows a perspective view of a filling tube according to the invention tilted from the front,
figure 2 shows a side view of the filling tube according to figure 1,
figure 3 shows a perspective view of the front end of the filling tube according to figure 1,
figure 4 shows a longitudinal section through the filling tube according to figure 1,
figure 5 shows a schematic cross-sectional view corresponding to figure 4,
figure 6 shows a longitudinal section through the filling tube according to figures 1 to 3 at a different circumferential position than in figure 5,
FIG. 7 shows a schematic cross-sectional view corresponding to FIG. 6, and
fig. 8, 9 show a longitudinal section and a front view of a variant of the embodiment according to fig. 1 to 7.
Detailed Description
A first embodiment of the invention is shown in different views in fig. 1 to 7. The filling tube 2 encloses a substantially cylindrical filling channel 4 which extends from a rear end 6 to a front end 8 of the filling tube. The rear end 6 is intended to be fixed at a filling machine, not shown, wherein, in the embodiment shown, the filling tube holding disk 10 is constructed in one piece with the filling tube 2 at the rear end 6. Fastening holes or slots 12 are formed on the filling tube holding pan 10 for fastening to a filling machine. The entire fill tube is manufactured in an additive manufacturing method, for example by means of 3D printing.
At the front end 8, the filling tube 2 tapers into a rounded plug-in nose 14 with a tip region 16. Adjacent to the tip region 16, a filling opening 18 is formed or cut into the plug-in nose 14, into or through which the filling channel 4 merges.
The filling channel 4 is surrounded by a filling tube wall 20, which essentially forms the filling tube and extends from the rear end 6 to the front end 8. At the front end 8, the filling tube wall 20 merges with the formation of the plug-in nose 14, and a filling opening 18 is cut out at a region of the plug-in nose 14 which is lower during operation.
The bag guide web 22 extends over the filling opening 18 along a longitudinal direction 24 of the filling tube 2, wherein the longitudinal direction 24 corresponds to the insertion direction of the valve bag (Ventilsack) with respect to the filling tube 2. The bag guide web 22 extends from the tip region 16 of the plug-in nose 14 as far as the rear edge of the filling opening 18 and is formed by the outer edge of a flat rib 26, which is formed in one piece with the filling tube wall 20.
In the central region of the filling tube adjacent to the filling opening 18, an expansion sleeve base 28 is formed on the outside of the filling tube wall 20, which comprises two contoured projections 30 arranged at a distance from one another and extending over the circumference of the filling tube wall 20. An annular expansion shell 32 made of an elastic material can be air-tightly fitted into the protrusion 30 around the filling tube wall 20 and blown for fixing the valve bag by supplying air through a blowing channel 34. Sleeve retaining ring 36 prevents expansion sleeve 32 from loosening from projection 30.
The sectional views in fig. 6 and 7 show the blowing channel 34 with its course from a connecting opening 38 arranged at the rear end 6 to a blowing opening 40 merging into the outer side of the filling tube wall 20, through which air for blowing the expansion shell 32 can be forced into an annular intermediate space 42 between the expansion shell 32 and the filling tube wall 20.
From the connecting opening 38, two or more blowing channels 34 are also arranged at a mutual distance in the circumferential direction, which extend to two or more blowing openings 40 in the region of the expansion shells 32.
Fig. 4 and 5 illustrate an arrangement of ventilation channels 46 embedded in the filling tube wall 20, extending between a connection opening 48 at the rear end 6 of the filling tube 2 and a ventilation opening 50 which merges into the filling channel 4. Through this connection opening 48, compressed air can be introduced into the ventilation channel 46, so that the powdery material can be blown out of the filling channel 4 by targeted pressure shocks at the end of the filling process without causing uncontrolled subsequent drifting after the removal of the valve bag from the filling tube 2.
The ventilation channel 46 as well as the connection opening 48 and the ventilation opening 50 can be arranged in a central plane of the filling tube 2, which central plane is determined by the extension plane of the ribs 26 forming the bag guide tabs 22.
The ventilation channel 52 extends between a connection opening 54 at the rear end 6 of the filling tube 2 and one or more ventilation openings 56, which converge in the outside of the filling tube wall 20 near the filling opening 18 at the front end of the filling tube 2. As can be seen from fig. 3, two ventilation openings 56 are preferably provided, which are arranged on both sides of the filling opening 18.
As shown in particular in fig. 7, the vent channel 52 extends offset in the circumferential direction with respect to the vent channel 46, for example by 20 ° to 30 ° in the circumferential direction. At the front end of the ventilation channel 52, an annular channel 53 is connected, which extends in the circumferential direction and leads up to two ventilation openings 56. As an alternative, two ventilation ducts 52 can be provided, which are each arranged offset by an amount of 20 ° to 30 ° in the circumferential direction with respect to the ventilation duct 46.
The one or more vent channels 52 are used to conduct air out of the bag during filling along with the material reaching the valve bag.
Fig. 8 and 9 show in different views an air supply channel 60 which extends from a connection opening 62 at the rear end 6 of the filling tube 2 in the direction of the front end 8 and ends at a position in front of the expansion shell or the ventilation opening or openings 50 of the ventilation channel 46. In the example shown, a partially circumferentially extending annular channel section 64 is connected to the connection opening 62, from which annular channel section the plurality of air supply channels 60 exit in the longitudinal direction. A series of air supply openings 66 branch off from the or each air supply channel 60, which open out into the filling channel 4.
The purpose of the one or more air supply channels 60 is to feed air into the filling flow in order to loosen the material and achieve a better filling.
List of reference numerals
2 filling tube
4 filling the channel
6 rear end
8 front end
10 fill tube retention tray
12 fastening groove
14 inserting nose
16 tip region
18 filling the opening
20 filling the tube wall
22 bag guide tab
24 longitudinal direction
26 Ribs
28 expansion sleeve base
30 protrusions
32 expansion sleeve
34 blowing channel
36 sets of retaining rings
38 connecting opening
40 blowing opening
42 intermediate space
46 Ventilation channel
48 connection opening
50 vent opening
52 vent passage
53 annular channel
54 connection opening
56 vent opening
60 air supply channel
62 connection opening
64 annular channel segment
66 air supply opening
68 channel section.
Claims (16)
1. Filling tube (2) for filling and venting of valve bags, having a front end (8) with a filling opening (18) and a rear end (6) for fixing at a filling machine, having a filling channel (4) surrounded by a filling tube wall (20), wherein the filling tube (2) has at least one channel (34, 46, 52, 60) which is at least partially embedded in the filling tube wall (20) and which extends from a connecting opening (38, 48, 54, 62) arranged at the rear end (6) in each case in the direction of the front end (8), wherein the at least one channel (34, 46, 52, 60) comprises a venting channel (46) which extends up to a venting opening (50) which is arranged in a central region of the filling tube (2) and merges into the filling channel (4), an air supply channel (60) embedded in the filling tube wall (20) is provided, which extends from the rear end (6) up to an air supply opening (66) that merges into the filling channel (4) in the region between the rear end (6) and the ventilation opening (50).
2. The filling tube according to claim 1, wherein the at least one channel (34, 46, 52, 60) comprises a venting channel (52) which extends up to a venting opening (56) arranged adjacent to the filling opening (18) and leading towards the outside of the filling tube (2).
3. The filling tube as claimed in claim 2, wherein the at least one channel (34, 46, 52, 60) comprises a blowing channel (34) for blowing an expansion sleeve (32) which can be placed onto the filling tube (2), which blowing channel extends up to a blowing opening (40) which is arranged in the middle region of the filling tube (2) and which is directed towards the outside of the filling tube (2).
4. The filling tube according to any of claims 1 to 3, wherein the at least one channel (34, 46, 52, 60) obtains at least one change in direction in the circumferential direction and/or in the radial direction with respect to the longitudinal axis in its course in the direction from a connection opening (38, 48, 54, 62) arranged at the rear end (6) towards the front end (8).
5. The filling tube as claimed in claim 1 or 2, characterized in that a filling tube retaining disc (10) is formed integrally with the filling tube (2) at the rear end (6), which filling tube retaining disc is arranged in a plane perpendicular to the longitudinal axis of the filling tube (2).
6. The filling tube according to claim 2, characterized in that the venting channel (52) merges at the front end (8) into an annular channel (53) embedded in the filling tube wall (20), which extends in the circumferential direction and is connected with the one or more venting openings (56).
7. The filling tube as claimed in one of claims 1 to 3, characterized in that the filling tube wall (20) tapers at the front end (8) into a rounded plug-in nose (14), from which the filling opening (18) is cut out.
8. The filling tube as claimed in claim 7, characterized in that a bag guide tab (22) is arranged extending in the region of the filling opening (18).
9. The filling tube as claimed in claim 8, characterized in that the bag guide tab (22) extends from a tip region (16) of the plug-in nose (14) to a rear edge of the filling opening (18).
10. The filling tube as claimed in claim 8 or 9, characterized in that the bag guide tab (22) is formed by a rib (26) which extends in a plane containing the longitudinal axis of the filling tube (2).
11. The filling tube as claimed in claim 1, characterized in that the air supply channel (60) has an annular channel section (64) which extends in the circumferential direction and a plurality of channel sections (68) which extend in the longitudinal direction (24), wherein at least one air supply opening (66) which merges into the filling channel (4) branches off from each channel section (68).
12. The filling tube as claimed in claim 11, characterized in that each channel section (68) has a plurality of air supply openings (66) which run in the longitudinal direction (24) and which merge into the filling channel (4).
13. The filling tube as claimed in claim 3, characterized in that at least two of the ventilation channel (52), the ventilation channel (46), the blowing channel (34) and/or the air supply channel (60) extend at least partially at different circumferential positions in the filling tube wall (20) or are arranged side by side, viewed in the circumferential direction.
14. The filling tube as claimed in one of claims 1 to 3, characterized in that two or more channels (34, 46, 52, 60) or channel sections extend at least partially at uniform circumferential positions in the filling tube wall (20) and are arranged one above the other and/or cross one another, viewed in the radial direction.
15. The filling tube as claimed in claim 2, characterized in that the venting channel (52) extends in the region of the expansion shell base (28) in a position having a smaller radius than at the rear end (6).
16. The filling tube according to any one of claims 1 to 3, wherein the filling tube is made by means of an additive manufacturing method.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17169511.7A EP3398859B1 (en) | 2017-05-04 | 2017-05-04 | Filling tube for filling valve bags |
| EP17169511.7 | 2017-05-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108792240A CN108792240A (en) | 2018-11-13 |
| CN108792240B true CN108792240B (en) | 2020-06-30 |
Family
ID=58671462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810419622.6A Active CN108792240B (en) | 2017-05-04 | 2018-05-04 | Filling tube for filling and venting valve bags |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3398859B1 (en) |
| CN (1) | CN108792240B (en) |
| ES (1) | ES2763083T3 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2046761A (en) * | 1930-12-08 | 1936-07-07 | Andreas Arno | Bag filling spout |
| US2799465A (en) * | 1955-02-28 | 1957-07-16 | Clarence F Carter | Method and apparatus for filling receptacles |
| US4003188A (en) * | 1975-11-24 | 1977-01-18 | Black Products Company | Valve bag filler, handling and sealing system |
| DE2717948A1 (en) * | 1977-04-22 | 1978-10-26 | Behn Verpackung Erwin | Valved sack filling equipment - has suction pipe with sieve retaining material connected alternately to compressed air supply |
| EP0107926A2 (en) * | 1982-09-28 | 1984-05-09 | Champion International Corporation | Electro-pneumatic control system for valve bag filling apparatus |
| US4574851A (en) * | 1982-09-28 | 1986-03-11 | Champion International Corporation | Apparatus for filling a valve bag |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1067050A (en) * | 1975-11-24 | 1979-11-27 | Black Products Company | Filling sleeve for valve bags |
| US4471820A (en) * | 1982-09-24 | 1984-09-18 | Lepisto J George | Valve bag filling nozzle |
| US4576210A (en) * | 1982-09-28 | 1986-03-18 | Champion International Corporation | Duck bill filler nozzle |
| DE3540506A1 (en) * | 1985-11-15 | 1987-05-21 | Natronag Verpackung | BAG FILLING MACHINE |
| DE4426080C2 (en) * | 1993-07-24 | 1996-09-19 | Behn & Bates Maschf Gmbh | Filling device for filling and venting valve bags |
-
2017
- 2017-05-04 ES ES17169511T patent/ES2763083T3/en active Active
- 2017-05-04 EP EP17169511.7A patent/EP3398859B1/en active Active
-
2018
- 2018-05-04 CN CN201810419622.6A patent/CN108792240B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2046761A (en) * | 1930-12-08 | 1936-07-07 | Andreas Arno | Bag filling spout |
| US2799465A (en) * | 1955-02-28 | 1957-07-16 | Clarence F Carter | Method and apparatus for filling receptacles |
| US4003188A (en) * | 1975-11-24 | 1977-01-18 | Black Products Company | Valve bag filler, handling and sealing system |
| DE2717948A1 (en) * | 1977-04-22 | 1978-10-26 | Behn Verpackung Erwin | Valved sack filling equipment - has suction pipe with sieve retaining material connected alternately to compressed air supply |
| EP0107926A2 (en) * | 1982-09-28 | 1984-05-09 | Champion International Corporation | Electro-pneumatic control system for valve bag filling apparatus |
| US4574851A (en) * | 1982-09-28 | 1986-03-11 | Champion International Corporation | Apparatus for filling a valve bag |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2763083T3 (en) | 2020-05-27 |
| EP3398859A1 (en) | 2018-11-07 |
| CN108792240A (en) | 2018-11-13 |
| EP3398859B1 (en) | 2019-09-25 |
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