US3845520A - Apparatus for pressing absorbent cotton articles, particularly tampons for feminine hygiene - Google Patents

Apparatus for pressing absorbent cotton articles, particularly tampons for feminine hygiene Download PDF

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Publication number
US3845520A
US3845520A US00235770A US23577072A US3845520A US 3845520 A US3845520 A US 3845520A US 00235770 A US00235770 A US 00235770A US 23577072 A US23577072 A US 23577072A US 3845520 A US3845520 A US 3845520A
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United States
Prior art keywords
shaping
pressing
jaw
jaws
disposed
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Expired - Lifetime
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US00235770A
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English (en)
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S Simon
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Hahn C dt GmbH
HAHN C GmbH
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HAHN C GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B7/00—Presses characterised by a particular arrangement of the pressing members
    • B30B7/04—Presses characterised by a particular arrangement of the pressing members wherein pressing is effected in different directions simultaneously or in turn
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
    • A61F13/2082—Apparatus or processes of manufacturing
    • A61F13/2085—Catamenial tampons

Definitions

  • An apparatus for pressing absorbent cotton articles, particularly tampons, for feminine hygiene which comprises at least one pair of first shaping means disposed in the direction of passage of the workpiece, at least one pressing means disposed in said direction of passage downstream of said first shaping means having at least one pair of pressing jaws having working faces, each of said working faces having a generally L- shaped configuration, the edge of the shorter leg adapted to abut the end of the longer leg of the other L-shaped working face to define a cavity when said jaws are in closed position.
  • PATENTEDHUV 5 I914 p sum 3 or 14 APPARATUS FOR PRESSING ABSORBENT COTTON ARTICLES, PARTICULARLY TAMPONS FOR FEMININE HYGIENE BACKGROUND OF THE INVENTION 1.
  • the invention relates to an apparatus for pressing absorbent cotton articles, particularly tampons for feminine hygiene.
  • the object of the invention is to provide an apparatus for pressing absorbent cotton articles, which is particularly suitable for parallel operation and in which the pressing process can be so sub-divided that the individual forces which have to be applied in a re-shaping SUMMARY OF THE INVENTION
  • this invention contemplates an apparatus for pressing absorbent cotton articles, particularly tampons, for feminine hygiene which.
  • first shaping means disposed in the direction of passage of the workpiece
  • pressing means disposed in said direction of passage downstream of said first shaping means having at least one pair of pressing jaws having working faces, each of said working faces having a generally L-shaped configuration, the edge of the shorter leg adapted to abut the end of the longer leg of the other L-shaped working face to define a cavity when said jaws are in closed position.
  • the present invention resolves the above problem in that, in the direction of passage of the workpieces, there is a first shaping means, e.g., a pre-shaping tool having at least one pair of shaping jaws, and a press having at least one pair of pressing jaws serially disposed.
  • the jaws are such that in the closed condition thereof their working surfaces are flush with shaperetaining surfaces associated with the pressing jaws and are located parallel with and at a constant distance from each other.
  • the jaws have mutually remote long sides located close to the opposite shape-retaining surface of the other pressing jaw.
  • a projecting pressing profile which, when the pressing jaws are in the closed position, forms a hollow space corresponding to the final cross-section of the workpiece.
  • the pre-shaping of the workpieces pursuant to the invention requires only small forces in only one axial direction.
  • the workpiece is thereby brought to a flat shape and subsequently pressed into its final shape in a manner which makes it possible to reduce the number of movements of the press likewise to only one movement.
  • the entire press construction would, even for the low-power portion of the preshaping, have to be very strongly dimensioned, since in at least two axial directions, considerable masses would have to be moved in correspondingly heavy guides.
  • a pre-shaping stage of the very lowpower involvement is followed by a pressing stage 1 in which, by virtue of the fact that parallel operation involves only one direction of movement, the force can be applied as the total of partial forces coinciding in an axial direction.
  • This high proportion of force is easily controlled by the particular spatial arrangement of the grouped-together pressing members. It is furthermore possible also to remain geometrically within the framework sufficient for the feeding arrangements.
  • the bottom jaw of the pre-shaping tool which in its lower opened receiving position, is at the height of a horizontal rhythmically movable workpiece carrier, located on the upstream side and is constructed as a rhythmically raisable andv lowerable lifting bar for the workpieces.
  • a two-part die consisting of a pusher and an ejector mandrel, and the cross section of which corresponds approximately to that of the pre-shaped workpiece, the die being adapted to move back and forth horizontally between the closed pair of shaping jaws, in the direction of the press.
  • the workpieces supplied by the workpiece carrier can be transferred into the pre-shaping tool in that, on the side of the workpiece carrier which is remote from the pre-shaping tool and the press, there are a number of horizontal push-rods, their number corresponding to the number of shaping chambers in the pre-shaping tool, the push-rods being adapted to be moved through the workpiece holders of the workpiece carrier in the cycle position thereof.
  • the adjacently-disposed shaping chambers of the pre-shaping tool is formed by webs secured at right angles to the lifting and shaping presser bars and parallel with and at equal distances from one another, being guided for upwards and downwards displacement perpendicularly in the fixed shapingbar located above.
  • the lower presser means is secured on a fixed, approximately horizontal beam and the upper presser jaws on a beam adapted for reciprocating movement parallel with the fixed beam and cam controlled through a toggle lever assembly.
  • This construction is simple in design and permits of easy maintenance.
  • FIGS. la and lb show two movement phases of the preshaping tool
  • FIGS. 10 and Id show two phases of the press
  • FIG. 2 is a cross section through the apparatus
  • FIG. 3 is a section along the line IlI-lIl in FIG. 2;
  • FIG. 4 is a section along the line IV-IV in FIG. 2;
  • FIG. 5 is a plan view taken from the top partially in section of a portion of the, apparatus of FIGS. 2 to 4, inclusive.
  • a workpiece 1 which can consist of a longitudinally unrolled absorbent cotton fleece, in other words, a roll of absorbent cotton, is located in the receiving position on an upwardly and downwardly movable shaping jaw 2 and underneath a fixed shaping jaw
  • FIG. 1b shows the workpiece In at the end of the preshaping stage inside a chamber 4 in the pre-shaping tool which is laterally bounded by webs 5. These webs are secured on the lower movable shaping jaw 2 and are guided for upwards and downwards displacement in apertures 6 in the upper fixed shaping tool 3.
  • FIG. shows the pre-shaping workpiece la after it has been transferred to the cavity between two presser jaws 7 and 8.
  • the two presser jaws 7, 8 are provided withshape-retaining faces 9, 10 which are in parallel, spaced and opposing relationship, assuming a constant distance from each other corresponding approximately to the height of the pre-shaped workpiece.
  • Projecting from the mutually remote long sides of the two presser jaws, in the direction of the relevant opposed shaperetaining face 9 or 10 of the other presser jaw 8, are semi-cylindrical pressing profiles 11, I2 of concave cross section which, when the two presser jaws 7, 8 are in the closed position, form a cylindrical cavity corresponding to the circular final cross section of the workpiece lb shown in FIG. ld.
  • FIG. 2 shows a roll 1 which is held in a cylindrical workpiece holder 13 of a, for example. endless workpiece carrier, not shown in greater detail.
  • the workpiece carrier is conveyed in cadence into a transfer position, the number of workpieces which are adjacently disposed in one row corresponding to the number of chambers 4 or pairs of pressing jaws 7, 8 of the press.
  • the number of horizontal push-rods 14, which are flush with the workpiece holders 13 of the workpiece carrier, in the inoperative position thereof, and which are smaller in diameter than the inside diameter of the workpiece holders, also corresponds to the number of adjacently-disposed chambers 4 and pairs of pressing jaws 7, 8. That end of the push-rod which is away from the workpiece carrier is horizontally displaceably articulated to the upper end of a control lever 18 at 17, through an angle piece 16.
  • the bottom end of the control lever 18 is pivotally attached at a point 20 on a console 19 disposed on the frame 18.
  • a sensing roller 21 Midway along the lever is a sensing roller 21 which follows a cam plate 22.
  • the cam plate 22 is mounted on a cycle shaft 23 which is connected through an angle drive 24 to a main shaft 25 which can be driven by an electric motor 27 through a V-belt transmission 26. In this way, the workpieces 1 can be transferred from the workpiece holders 13 by the push-rods 14 to the shaping jaw of the preshaping tool.
  • the shaping jaw forms a lifting or chamber beam which is mounted on the upper side of a carriage 28 which is mounted for upwards and downwards displacement in a guide 29 mounted on the frame 15.
  • the bottom end of the carriage as shown in FIG. 4, is articulated at 30 on a double lever 31 which is pivotable about a horizontal axis 32 and which has an end constructed as a follower wheel 33 which, under the action of a spring, not shown, follows a control cam 34, the control cam being mounted on the shaft 25.
  • the lifting or shaping beam can be moved into the upper extreme position shown in FIG. lb, when the workpiece 1 is compressed between the two preshaping jaw 2 and 3 to a height corresponding to the nominal dimension of these jaw.
  • This pre-shaping process requires only minimal forces and, in this position upstream of the actual press, allows the number of movements of the press body to be reduced to a single movement.
  • FIG. 2 Above the push-rods 14 in FIG. 2 and parallel therewith are a number of two-part dies 35 corresponding to the number of push-rods or press tools and which again are guided for horizontal displacement in the frame 15, their cross section in each case corresponding approximately to the cross section of the pre-shaped workpiece la.
  • This two-part die consists of an ejector mandrel 35a and a pusher 35b, shown in FIG. 3, the total cross section of which is somewhat smaller than the cavity between the opened pressing jaws 7, 8, which is filled by the pre-shaped workpiece la, as shown in FIG. 1c.
  • the circular cross section of the ejector mandrel 35a is in turn somewhat smaller in size than the cylindrical cavity enclosed by the pressing profiles l1, 12 when the pressing jaws 7, 8 are in the closed position shown in FIG. 1d.
  • Artriculated for movement in an approximately perpendicular plane on the rear end of the twopart dies are strips 36, the other end of which is articulatingly connected to the upper end of a control lever 37.
  • the bottom end of this control lever is pivotably mounted on the bottom of the frame 15, at 38.
  • a sensing wheel 370 on the control lever 37 follows a control cam 39, the movement of which causes the control lever 37 which is urged against the control cam by a spring, not shown, to move leftwards in FIG.
  • the pressing jaws have given the preliminary blank 1a the final form 1b shown in FIG. 1d, then from the aforedescribed, forwardly-pushed position of the two-part die, only the ejector mandrel 35a can alone be pushed between the pressing profiles ll, 12 to eject the completed and pressed workpiece 1b.
  • the ejector mandrel 35a is mounted on an auxiliary guide 40 which is connected through an intermediate link 41 to a control lever 42 having a wheel 43 which follows a control cam 44 which is likewise mounted on the cycle shaft 23.
  • the ejector mandrels 35a and 35b transfer the compressed workpiece from the four chambers of the lifting device to the pressing means.
  • the pushers 35b and the ejector mandrels 35 carry out strokes of equal length per unit of time during the displacement of the workpieces from the lifting beam to the pressing means.
  • the length of the stroke is regulated in such a way that the pressed-fiat workpieces are placed lengthwise between the sidewalls of the frame.
  • the round ejector mandrels 35a are moved in-forward direction to eject the pressed-flat workpieces from the chambers of the shaping and pressing means and to transfer theminto the heating means which is placed at the rear of the shaping means.
  • the ejector mandrels 35a carry out a double-stroke during their working cycle, namely in the first part they are moving in engagement with the pusher 35b for the insertion of the pressed-flat workpiece, and in the second part they carry out the ejection stroke for the onward transportation of the pressed workpiece from the shaping and pressing means to other tools (heating means).
  • the pushers 35b are in engagement with the cross bar 102 over push-rods 101 and the lever 37 is engaged to the cross bar over the link 36.
  • the ejector mandrels 35a are in engagement with the cross bar 40, which is gliding to and fro on two round guides 103 which are mounted on the frame 15. The movement is initiated over two intermediate links 41 and two levers 42.
  • the pushers 35b are guided in the frame and the four push-rods 101 are guided in the cross-bar 40; i.e., during the insertion movement of the pressed-fiat workpieces into the shaping and pressing means, the cross bars 40 and 102 are simultaneously moyed forward over the corresponding levers 42 and 37; then both movements come to a stop for the shaping operation and after the cross bar 40 with the ejector mandrels 35a is moved forward in the second part of the stroke.
  • the bottom pressing jaws are located on a fixed beam 45 mounted on the frame 15.
  • the upper pressing jaws are mounted on the underside of a beam 46 located above the fixed beam. Through a strip 47, this beam is articulated on the short end of an angle lever 48, of which the point of rotation on the frame is marked by reference numeral 49.
  • a follower50 on the long arm of the lever 48 is pressed-by means not shown against the periphery of the control cam 51 mounted on the shaft 25.
  • the accurate and wear-free guiding of the upper beam 46 is achieved by upper rollers 52 and lower roller 53 which are finely adjustable by means of eccentric members.
  • the inter se identically constructed pressing jaws 7 and 8 can be displaced horizontally, their pressing profiles moving towards each other as far as the nominal diameter.
  • a roller guide 54 in which the rollers 52 are mounted can be raised about an axis 54a provided in the frame 15. After this roller guide has been raised, then the upper beam 46 can also be raised.
  • An apparatus for pressing absorbent cotton articles, particularly tampons, for feminine hygiene which comprises at least one pair of first shaping means disposed in the direction of passage of the workpiece, in serial relationship therewith, said apparatus having a workpiece carrying means and a pair of pressing jaws, said workpiece carrying means locatedupstream of said pair of pressing jaws, said first shaping means comprising a pair of shaping jaws comprising an upper shaping jaw and a lower shaping jaw, one of which is positioned over the other in facing relationship therewith, means for moving said lower shaping jaw upwardly and downwardly, said apparatus further having at least one pressing means disposed in said direction of passage downstream of said first shaping means having at least one pair of pressing jaws comprising an upper presser jaw and a lower presser jaw having working faces, each of said working faces having a generally L-shaped configuration, the edge of the shorter leg adapted to abut the end of the longer leg of the other L-shaped working face, the working face of the shorter leg of the L-shaped member having a recess therein that faces the working face of the opposed
  • a horizontally movable two-part die is disposed in registry with said first shaping means and said pressing means to transfer said workpiece from said first shaping means to said pressing means, said two-part die comprising an ejector mandrel and a pusher, said die having a cross section generally corresponding to the cross section of a workpiece after it has been subjected to said first shaping means, means for reciprocatingly displacing said die horizontally between the open pressing jaws of said pressing means.
  • a horizontal reciprocatable push-rod is disposed in alignment with said workpiece carrying means and said lower shaping jaw upstream thereof, said push-rod connected to an operating means, said operating means connected to said push-rod and adapted to advance said push-rod forward when said lower shaping jaw is disposed at its lowermost extremity.
  • An apparatus having a chamber beam, said first shaping means comprising a plurality of shaping chambers, each of which is defined in part by a lower shaping jaw and a fixed upper shaping jaw and formed by equally spaced parallel webs located at right angles to and on said lower shaping jaw, said webs disposed within apertures in said chamber beam disposed thereabove to guide said webs.
  • An apparatus wherein there are a plurality of pairs of pressing jaws each pair of said pressing jaws having a lower pressing jaw and an upper pressing jaw, a generally horizontal fixed beam and a generally reciprocatingly movable upper pressing beam, a first means for mounting said lower pressing jaws in a general horizontal position, the upper pressing jaws of which are mounted on said reciprocatingly movable upper pressing beam generally parallel to said fixed beam, and a cam connected to said movable upper pressing beam through a series of toggle levers, a second means for movably mounting the upper pressing jaws reciprocatingly to said first means.
  • An apparatus having a chamber beam having apertures therein, said first shaping means comprising a chamber defined in part by said lower shaping jaw and formed by equally spaced parallel webs located at right angle to and on said lower shaping jaw, said webs disposed within said apertures, said fixed shaping beam disposed above to guide said lower shaping jaw, said lower shaping jaw adapted to be in alignment at its lower most extremity with said workpiece carrying means located on the upstream side thereof, a horizontal reciprocable push-rod disposed in alignment with said workpiece carrying means and said lower shaping jaw upstream thereof.
  • operating means connected to said push-rod adapted to advance said push-rod forward when said lower shaping jaw is disposed at its lowermost extremity and wherein the upper pressing beam is guided by bottom rollers on a roller guide.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Press Drives And Press Lines (AREA)
  • Floor Finish (AREA)
US00235770A 1971-03-25 1972-03-17 Apparatus for pressing absorbent cotton articles, particularly tampons for feminine hygiene Expired - Lifetime US3845520A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2114530A DE2114530C2 (de) 1971-03-25 1971-03-25 Einrichtung zum Pressen von Tampons für die Frauenhygiene
NL717104582A NL148499B (nl) 1971-03-25 1971-04-06 Inrichting voor het persen van uit absorberend materiaal bestaande werkstukken, in het bijzonder tampons voor de vrouwelijke hygiene.

Publications (1)

Publication Number Publication Date
US3845520A true US3845520A (en) 1974-11-05

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ID=25760856

Family Applications (1)

Application Number Title Priority Date Filing Date
US00235770A Expired - Lifetime US3845520A (en) 1971-03-25 1972-03-17 Apparatus for pressing absorbent cotton articles, particularly tampons for feminine hygiene

Country Status (23)

Country Link
US (1) US3845520A (fr)
JP (1) JPS5425358B1 (fr)
AR (1) AR193072A1 (fr)
AT (1) AT326812B (fr)
BE (1) BE781119A (fr)
BR (1) BR7201756D0 (fr)
CA (1) CA966460A (fr)
CH (1) CH540116A (fr)
CS (1) CS167975B2 (fr)
DD (1) DD96184A5 (fr)
DE (1) DE2114530C2 (fr)
DK (1) DK131887C (fr)
ES (1) ES401133A1 (fr)
FI (1) FI57349C (fr)
FR (1) FR2131579A5 (fr)
GB (1) GB1382679A (fr)
IT (1) IT961571B (fr)
NL (1) NL148499B (fr)
NO (1) NO129031B (fr)
RO (1) RO89294A (fr)
SE (1) SE382301B (fr)
SU (1) SU510154A3 (fr)
ZA (1) ZA721350B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5165152A (en) * 1989-01-03 1992-11-24 Mcneil-Ppc, Inc. Process and apparatus for the continuous production of absorbent bodies
US6299573B1 (en) 1997-03-31 2001-10-09 Eil-Ppc, Inc. Domed compressed tampons
CN106604705A (zh) * 2014-09-30 2017-04-26 金伯利-克拉克环球有限公司 压缩的设备和方法
EP3263080A1 (fr) 2016-06-28 2018-01-03 Ontex BVBA Procédé et appareil de transport pour tampons

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH586038A5 (fr) * 1975-05-30 1977-03-31 Ruggli Ag Karl
DE3049580A1 (de) * 1980-12-31 1982-07-08 Dr. Carl Hahn GmbH, 4000 Düsseldorf Einrichtung zum pressen von aus absorbierendem material bestehenden werkstuecken, insbesondere tampons fuer die frauenhygiene
DE3049581C2 (de) * 1980-12-31 1987-02-26 Dr. Carl Hahn GmbH, 4000 Düsseldorf Vorrichtung zum Herstellen von mit einem Rückholband versehenen Tampons für die Frauenhygiene
CN111438559A (zh) * 2020-04-14 2020-07-24 贾虎 一种具有金属装卸料仓的数控车床

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2058275A (en) * 1934-10-05 1936-10-20 Joseph A Voss Machine for compressing cotton wads
US2690597A (en) * 1948-07-01 1954-10-05 Int Cellucotton Products Method and apparatus for making catamenial tampons
US3131435A (en) * 1958-11-10 1964-05-05 Kimberly Clark Co Manufacture of cellulosic products

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2058275A (en) * 1934-10-05 1936-10-20 Joseph A Voss Machine for compressing cotton wads
US2690597A (en) * 1948-07-01 1954-10-05 Int Cellucotton Products Method and apparatus for making catamenial tampons
US3131435A (en) * 1958-11-10 1964-05-05 Kimberly Clark Co Manufacture of cellulosic products

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5165152A (en) * 1989-01-03 1992-11-24 Mcneil-Ppc, Inc. Process and apparatus for the continuous production of absorbent bodies
US6299573B1 (en) 1997-03-31 2001-10-09 Eil-Ppc, Inc. Domed compressed tampons
CN106604705A (zh) * 2014-09-30 2017-04-26 金伯利-克拉克环球有限公司 压缩的设备和方法
EP3263080A1 (fr) 2016-06-28 2018-01-03 Ontex BVBA Procédé et appareil de transport pour tampons

Also Published As

Publication number Publication date
CS167975B2 (fr) 1976-05-28
RO89294A (fr) 1986-06-30
BE781119A (fr) 1972-07-17
CH540116A (de) 1973-08-15
DK131887B (da) 1975-09-22
IT961571B (it) 1973-12-10
ES401133A1 (es) 1975-02-16
DD96184A5 (fr) 1973-03-12
SE382301B (sv) 1976-01-26
GB1382679A (en) 1975-02-05
ZA721350B (en) 1972-11-29
NL148499B (nl) 1976-02-16
DE2114530A1 (de) 1972-10-05
FI57349C (fi) 1980-08-11
AT326812B (de) 1975-12-29
BR7201756D0 (pt) 1973-05-24
FR2131579A5 (fr) 1972-11-10
NL7104582A (fr) 1972-10-10
ATA156572A (de) 1975-03-15
FI57349B (fi) 1980-04-30
DE2114530C2 (de) 1985-05-30
DK131887C (da) 1976-03-29
CA966460A (en) 1975-04-22
AR193072A1 (es) 1973-03-30
SU510154A3 (ru) 1976-04-05
JPS5425358B1 (fr) 1979-08-27
NO129031B (fr) 1974-02-18

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