US3443609A - Apparatus for filling valve bags with pulverous material - Google Patents

Apparatus for filling valve bags with pulverous material Download PDF

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Publication number
US3443609A
US3443609A US581055A US3443609DA US3443609A US 3443609 A US3443609 A US 3443609A US 581055 A US581055 A US 581055A US 3443609D A US3443609D A US 3443609DA US 3443609 A US3443609 A US 3443609A
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United States
Prior art keywords
hose
filling
pipe section
valve
section
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Expired - Lifetime
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US581055A
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English (en)
Inventor
Peter H A Wehren
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Erwin Behn Verpackungsbedarf GmbH
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Erwin Behn Verpackungsbedarf GmbH
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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

Definitions

  • a device for filling bags with pulverous or granular material having a feeding line for filling connection with a bag, in which the feeding line is subdivided into a larger cross-sectional branch and a smaller cross-sectional branch each of which has associated therewith control means for individually controlling said branches, the arrangement being such that both branches are effective during the major portion of the filling operation while the smaller cross-sectional branch only is eifective during the last phase of the filling operation.
  • the present invention relates to an apparatus for filling valve bags with pulverous material according to which the flow of material in the feeding line to the filling connection is shut off by a valve.
  • a heretofore known device of this type below the spot Where a main container leads into an auxiliary container, there is provided a nozzle for compressed air, the air jet of which passes by the mouth of the main container and is directed toward the mouth of the auxiliary container.
  • valve bag packing machine which is provided with a porous wall inclined at approximately 45 degrees with regard to the horizontal, while two air feeding lines end below said wall.
  • the compressed air of one of said lines impacts upon the central section of the wall, whereas the compressed air of the second line impacts upon the lower section of the wall.
  • This known embodiment yields a satisfactory filling within a short time, but also fails to solve the problem of obtaining a precise filling weight within a short time because the post sliding of the filling material on the inclined surface is rather difficult to control so that there exists the danger of an undesired post filling.
  • This arrangement additionally has a valve acting in the manner of a hose clamp and adapted to block the flow of mate- 3,443,609 Patented May 13, 1969 rial, said valve being located behind said wall when looking in the direction of flow of the material.
  • shutoff valves have the advantage of being able to operate almost without delay which means that they close immediately after a corresponding impulse has been emitted, and thus will assure a high precision in the filling of the bags.
  • Such known fast closing valves have the drawback that a closing of the valve even by a fraction of a second ahead of or after the intended closing time brings about that the admissible tolerance range of the weight is exceeded to a considerable extent.
  • Still another object of this invention consists in the provision of an apparatus as set forth in the preceding paragraph, which will make it possible, by simple means and in a short period of time to change the ratio-precision of filling weight to filling speed-in favor of the precision or in favor of the speed.
  • FIGURE 1 illustrates partially in section the entire filling apparatus without the Weighing mechanism and without the container to be filled.
  • FIGURE 2 shows on a somewhat larger scale than FIGURE 1, the two hose clamping valves.
  • FIGURE 3 represents a further embodiment of the invention with uniform cross sectional line for the fine current.
  • the present invention which relates to an apparatus for filling valve bags with pulverous material in which the flow of material in a flexible hose is blocked by a valve acting in the manner of a hose clamp, is characterized primarily in that an exchangeable pipe section having a smaller diameter than the hose extends coaxially into the flexible and compressible hose.
  • the pipe section extends preferably over 73 of the length of the hose of the valve and is held in the valve housing by means of wings or plates arranged at one end of said pipe section and directed radially outwardly.
  • the fine current passing through the pipe section is adapted to be blocked by a second valve which is likewise designed in the manner of a hose clamping valve and may be coaxial with regard to the flexible hose of the first valve.
  • the pipe section may be provided with a flexible hose extension which, similar to the pipe section can be exchanged for the latter by a hose extension of a larger or smaller diameter, said flexible hose extension being centrally held in the second hose clamping valve.
  • the corresponding wall of the container 1 holding the material to be charged has connected thereto a flange 2 of a valve 3 to which the ends 4a, 4b of a flexible hose 4 are connected.
  • the inner chamber 5 of the hose merges with the bore 6 of fiange 2 and is closed in an airtight manner with regard to the remaining inner chamber 7 of the valve housing so that when introducing a pressure medium, preferably compressed air, through the connection 8 into the inner chamber 7, the hose 4 will be compressed or pinched together instantaneously so as to assume the position shown in FIG. -2 in dot-dash lines and designated with the reference numeral 4.
  • 'Flange 9 of valve 3 has a bore 10 which corresponds to the bore 6 of flange 2.
  • Flange 9 has a cylindrical extension 11, the inner chamber of which merges with the bore 10.
  • a pipe section 12 extends coaxially into the interior of hose 4 and has a length which amounts to approximately of the length of hose 4.
  • This pipe section is formed of non-yieldable material so that when hose 4 is instantaneously pinched together in view of the pressure medium introduced into chamber 7, hose 4 will in its position 4' rest on pipe section 12 without causing a change in the cross section of said pipe section '12.
  • Pipe section 12 is held in its position by wings or webs 13 arranged at the front end 12a which extends into bore 10 and extension 11, said wings or webs extend-ing radially outwardly and being so shaped and arranged that the pipe section 12 can easily be slipped into bore 10 and extension 11 and can with the same ease be withdrawn therefrom.
  • Suitable locking means no-t illustrated will prevent pipe section 12 from undue displacement with regard to its illustrated position.
  • hose 14 Connected to extension 11 or flange 9 is one end of a hose 14. This connection may be effected by a shell 15 or any other suitable connecting element.
  • the second end of hose 14 is by means of a second shell 16 connected to the annular extension 17 of a stationary member 18 which preferably is a part of a scale.
  • Hose 14 can be compressed or pinched into the position 14' in a manner similar to hose 4.
  • To this and two rollers 19 of two piston rods 20 are provided. The pressure medium acting upon the pistons of said piston rods is supplied through nipples 21.
  • hoses 4 and 14 are in the position shown in solid lines in FIGURE 2.
  • the material to be filled into the container passes from the material holding container 1 through the total cross section of hose 4, Le. also through pipe section 12 in the form of coarse current to the filling mouth F (FIG. 1).
  • the filling mouth F is in a well-known manner connected to the weighing device which emanates the control impulses for the device.
  • compressed air is supplied to the inner chamber 7 whereby hose 4 will instantaneously be pinched against the pipe section 12 so that the material to be charged can pass from the container 1 only through pipe section 12 to the filling mouth F.
  • This step of transforming a coarse current to a fine current can be eflected very suddenly so that the coarse current can be permitted to flow without encountering a lack of precision in the weight of the bag.
  • the fine current need in contrast to heretofore known devices flow only for a short time while a high precision in weight of the filling of the bag can be maintained.
  • the closing off of the fine current is effected by a pinching movement of rollers 19 and the inherent pinching of hose 14 into the position 14'.
  • pipe section 12 is at 12]; extended beyond the Wings or webs 13.
  • a short pipe section 31 which has wings or Webs 32 arranged in a star-shaped manner which are shaped and arranged similarly to the wings or webs 13 on pipe section 12.
  • pipe section 31 extends beyond the webs or wings 32 in the direction toward the valve 3.
  • the ends of a flexible hose 34 are slipped upon the extension of pipe section 12 at 1211 and onto the extension of pipe section 31 at 33.
  • the inner diameter of hose 34 corresponds approximately to the inner diameter of pipe section '12.
  • a device for filling bags with pulverous and granular material which includes: conduit means having inlet means for connection with a supply of material to be filled into a bag and also having outlet means for discharging said material into a bag, said conduit means comprising a first passage of a larger cross-section and a second passage of a smaller cross-section, each of said two passages cornmunicating with said inlet means and said outlet means, and control means respectively associated with said two passages for respectively and individually controlling the same to thereby selectively feed material to be filled into a bag simultaneously through both passages over a selected major portion of a bag filling operation and subsequently only through said smaller crosssectional passage during the very last phase of the filling operation.
  • a device for filling bags with pulverous and granular material which includes: conduit means having inlet means for connection with a supply of material to be filled into a bag and also having outlet means for discharging said material into a bag, said conduit means comprising a first flexible hose having one end in communication with said inlet means and also having a second flexible hose with one end in communication with the other end of said first hose while having its other end in communication with said outlet means, a substantially rigid pipe arranged substantially coaxially with and in radially spaced relationship to said first flexible hose so as to define an annular passage therewith, said pipe having one end in communication with said inlet means and having its other end in communication with the interior of said second flexible hose and through the latter with said outlet means, first control means associated with said first flexible hose and operable to squeeze the latter against said rigid pipe to thereby block the flow of material through said annular passage, and second control means associated with said second flexible hose and operable to squeeze said second flexible hose so as to pre- 5 6 vent the flow of
  • a device in which said first v UNITED STATES PATENTS and second flexible hoses in unsqueezed position have ap- 2,770,439 11/1956 Stafford et X proximately the same inner diameter. 5 2,898,088 '8/1959 Alder 138-45 X 4.
  • the length v of said pipe from its area of communication with said HOUSTON Primary Examinersecond flexible hose in the direction toward said inlet Us Cl XR means equals approximately two-thirds of the length of said first flexible hose. 10 13845; 141--392; 2'5l5

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
US581055A 1965-09-28 1966-09-21 Apparatus for filling valve bags with pulverous material Expired - Lifetime US3443609A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0083916 1965-09-28

Publications (1)

Publication Number Publication Date
US3443609A true US3443609A (en) 1969-05-13

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ID=6982189

Family Applications (1)

Application Number Title Priority Date Filing Date
US581055A Expired - Lifetime US3443609A (en) 1965-09-28 1966-09-21 Apparatus for filling valve bags with pulverous material

Country Status (5)

Country Link
US (1) US3443609A (enrdf_load_stackoverflow)
AT (1) AT286878B (enrdf_load_stackoverflow)
CH (1) CH437107A (enrdf_load_stackoverflow)
GB (1) GB1147993A (enrdf_load_stackoverflow)
NL (1) NL6610223A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3695576A (en) * 1970-01-12 1972-10-03 Fisher Controls Co Reinforced boot for slurry type pinch valve
US3724503A (en) * 1971-04-30 1973-04-03 Aeroquip Corp Flow measurement and control
US4869457A (en) * 1986-09-10 1989-09-26 Ewerloef Goeran Arrangement for controlling and regulating a liquid flowing through a line
US20160178071A1 (en) * 2014-12-18 2016-06-23 Festo Corporation Multiple Stage Pinch Valve and Filling Apparatus Using a Multiple Stage Pinch Valve
US20190234524A1 (en) * 2018-01-31 2019-08-01 Ingersoll-Rand Company Plate-less inlet valve

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770439A (en) * 1954-09-17 1956-11-13 Fmc Corp Apparatus for filling powdered or granular materials into bags
US2898088A (en) * 1958-02-10 1959-08-04 Dresser Ind Earth borehole logging system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770439A (en) * 1954-09-17 1956-11-13 Fmc Corp Apparatus for filling powdered or granular materials into bags
US2898088A (en) * 1958-02-10 1959-08-04 Dresser Ind Earth borehole logging system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3695576A (en) * 1970-01-12 1972-10-03 Fisher Controls Co Reinforced boot for slurry type pinch valve
US3724503A (en) * 1971-04-30 1973-04-03 Aeroquip Corp Flow measurement and control
US4869457A (en) * 1986-09-10 1989-09-26 Ewerloef Goeran Arrangement for controlling and regulating a liquid flowing through a line
US20160178071A1 (en) * 2014-12-18 2016-06-23 Festo Corporation Multiple Stage Pinch Valve and Filling Apparatus Using a Multiple Stage Pinch Valve
US10174849B2 (en) * 2014-12-18 2019-01-08 Festo Corporation Multiple stage pinch valve and filling apparatus using a multiple stage pinch valve
US20190234524A1 (en) * 2018-01-31 2019-08-01 Ingersoll-Rand Company Plate-less inlet valve

Also Published As

Publication number Publication date
CH437107A (de) 1967-05-31
NL6610223A (enrdf_load_stackoverflow) 1967-03-29
GB1147993A (en) 1969-04-10
AT286878B (de) 1970-12-28

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