EP2305571A1 - Procédé, étoffes et machines permettant d'obtenir des sacs et des articles similaires sans couture - Google Patents

Procédé, étoffes et machines permettant d'obtenir des sacs et des articles similaires sans couture Download PDF

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Publication number
EP2305571A1
EP2305571A1 EP09800084A EP09800084A EP2305571A1 EP 2305571 A1 EP2305571 A1 EP 2305571A1 EP 09800084 A EP09800084 A EP 09800084A EP 09800084 A EP09800084 A EP 09800084A EP 2305571 A1 EP2305571 A1 EP 2305571A1
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EP
European Patent Office
Prior art keywords
bags
fabric
strands
transversal
cutting
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.)
Withdrawn
Application number
EP09800084A
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German (de)
English (en)
Inventor
Marcos Guasch Pubill
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from ES200802170A external-priority patent/ES2345080B2/es
Priority claimed from ES200901268A external-priority patent/ES2354547B2/es
Application filed by Individual filed Critical Individual
Publication of EP2305571A1 publication Critical patent/EP2305571A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B65D29/00—Sacks or like containers made of fabrics; Flexible containers of open-work, e.g. net-like construction
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/04—Sack- or bag-like articles
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D5/00—Selvedges

Definitions

  • Plastic bags are very economic and easy to manufacture by welding and die cutting, and are widely used, generally for a single use, such as for instance when purchasing in stores, mainly in supermarkets and similar shops. This material is not biodegradable and creates a serious waste problem.
  • Paper bags although their manufacturing is more complex, are also economic, but they are not very strong, thus their use is limited.
  • cloth bags are the most ecological and are quite strong, though their handicap is their high cost, especially due to the cutting and stitching operations they require in the manufacturing process.
  • the object of this invention is a procedure, fabrics and machines for obtaining bags and similar products without any stitching.
  • This procedure produces bags or similar products directly from the loom with a subsequent die-cutting process, which results in a low cost that can compete with plastic bags, enabling them be used as single-use bags, even though due to their construction, they can be used several times.
  • the procedure consists of weaving two superimposed separate pieces of fabric, which are joined together transversally by weaving strands of warp at predetermined distances using strands of the weft, at the same time, in the direction of the warp independent bands with the corresponding hems in the longitudinal edges are formed in the loom, the sides of which are then subject to total or partial die cutting that conforms the bag or similar product.
  • the die cutting will produce a bag or similar product with the desired shape, for instance with or without handles, but there will always be die cutting in transversal direction, that be intermittent or continuous, obtaining in the first case bands of bags that can be separated by the user and can be commercialised in rolls, and in the second case, separate units will be produced that may be stacked and commercialised in boxes, for instance.
  • This procedure can also incorporate silkscreen printing to customise the bags with the desired motifs.
  • One of the fabrics to be used is composed of two independent superimposed pieces of fabric interwoven in transversal and longitudinal bands determining the hems between which are the joining areas with floating strands of warp and joining areas with strands of floating weft.
  • bands are formed with transversal joining areas with floating strands of warp, which are installed in the winding machine to manufacture the bags.
  • This machine is fitted with at least one roll of fabric and comprises means for moving, tensioning and aligning the fabric, means for transversal and angular or curved cutting, and means for stacking the bags manufactured.
  • the means for moving, tensioning and aligning the fabric consist of a transversal spiked comb that is inserted into the areas with floating strands of warp and that is movable and retractable, moving with a motor under a platform with longitudinal slits on which the fabric moves along.
  • the means for transversal cutting consists of a pneumatically activated cylinder holding an electric cutter, in collaboration with a pneumatic pressure pad that maintains the fabric tense.
  • the means for stacking comprise a reception tray with to and fro and vertical movements on which the bags are deposited.
  • the procedure object of the invention for obtaining bags and similar products made of fabric without any stitching consists in weaving on a loom of any type, for instance sulzer, airjet, ketten and raschel, two separate superimposed pieces of cloth (1 and 2) that at predetermined distances (x) are joined transversally by interweaving the strands of warp using strands (3) of the weft.
  • the transversal die cutting (6') is carried out in the area where the two pieces of cloth join with strands (3) of the weft and this is complemented with other curved cuts (9, 10 and 11) forming the handles (12 and 13) of the bag (7').
  • Figure 11 illustrates a band already cut, but with the transversal cut (6") partial (intermittent) so that the collection of bags can be rolled up forming a reel (14) from which the user can detach the bags, one by one.
  • the reel (14) may be placed, for instance, in a dispensing machine.
  • the die cutting phase may also be done by spreading the fabric from a roll (16) along a table (M) ( figure 12 ) forming several layers (18) one on top of the other, making cuts in different areas (17) coinciding in each layer to obtain blocks of ready-cut bags one on top of the other.
  • M table
  • the bags both those without handles (7) as well as (7') with handles, either in rolls or stacked, can be dispensed in boxes (15) with the features of 2 or as desired ( figure 13 ).
  • the bags can be customised (19) either with decorations or motifs, by means of printing (20) for instance by transfer or laser. This can be done at the moment of die cutting, in the case of the process according to figures 4 and 7 , or before die cutting, in the case of figure 12 .
  • the procedure produces bags with or without handles, however, with the same procedure, other similar products can be obtained, such as sacks, containers and covers in general, for instance for pillows.
  • the bags can be obtained in uniform colours or several colours combined to give them a more original appearance, for this purpose there will be tinted strands in the loom with the predetermined colours.
  • the fabric used for manufacturing the bags is composed of a separate double cloth (1, 2) with stroke without weft with strands of floating warp (3') (width of the fabric) and with combed empty spaces with strands of floating weft (3") (length of the fabric) that join the hems (5) of the double cloth of this fabric, bands are cut longitudinally (B) ( figure 15 ) by the strands of floating weft (3").
  • the machine (21) comprises a support (22) where the four rolls are fitted (23) vertically (formed by bands (B) of fabric), which are centred to determine the location of the hems (5) for the transversal cutting and final stacking.
  • photoelectric sensors (24) that transmit a signal to electrical worm drive lineal actuators (25) for guiding, with incorporated end of travel devices, the driving part comprising a linear bearing (26).
  • the roll carrier has an adjustable braking system (not illustrated), which will be used if the roll has inertia greater than the stretching.
  • the photoelectric sensors (24) are incorporated into alignment assemblies (27) that adjust the tension of the fabric in each roll.
  • the means for moving, tensioning and aligning the fabric comprise a spiked comb (28) ( figure 17 ) that enters the areas with floating strands of warp (3') and that is (movable) by lineal guides (29) a double ball circulation (30) by the action of a servo-motorised motor (31), that incorporates an encoder inside, obtaining precision in stoppage, and to which a gear reduction motor (32) is fitted.
  • the spiked comb (28) is also retractable by the action of parallel pneumatic cylinders (33 and 34).
  • the spiked comb For the search by the spiked comb (28), in the area of floating warp (3') there is a strand of weft (T) of a different colour, detected by a fire optic photoelectric sensor (35) built into the spiked comb (28) ( figure 17 ), which runs under a platform (36) ( figure 18 ) with longitudinal slits (37) for the passage of the spikes of the comb and along which the fabric is moved.
  • This platform has a small window (38) through which the photoelectric sensor works (35).
  • the comb (28) when it reaches the mark formed by the strand of weft (T) rises to move the fabric, then an end of travel sensor is activated (39) that stops the movement and a pneumatic pressure pad (40) maintains the stretch tension lowering the spiked comb (28) to proceed then with the transversal cutting through the centre of the strands (3') by means of a pneumatic cylinder (41) holding an electric cutter.
  • the means of stacking the manufactured bags comprises a motorised reception tray (42), with a to and fro movement on a base (43) ( figure 16 ) and vertical movement by means of rails (44) and with a lowering sensor (45), to which the bags arrive from a motorised conveyor belt (46) on two rollers at the ends (47 and 48), and synchronised with the reception tray (42).
  • An alternative to the conveyor belt (46) consists of four pneumatic clamps (49) on the sides of the platform (36) ( figure 18 ) that will hold the sides of the bags and take them and deposit them by gravity onto the reception tray (42).
  • Angular or curved cutting may be carried out by different systems incorporated to the machine and placed before the stacking devices.
  • FIG. 19 An example of a cutting system could be that represented in figure 19 , comprising electric cutters (50) a rotating disc moved by a pneumatic cylinder (51) without shaft with and end of travel damper, or moved by an electric motor and pulleys; Reference (52) shows a tray comprising the cutting devices and the guides (53) for moving these devices.
  • An angular or curved cut determines the handles of the bag (BO).
  • the cutting system to obtain the handles of the bag may be any other, for instance through a bridge die cutter using in motorised band at the lower part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Woven Fabrics (AREA)
  • Looms (AREA)
EP09800084A 2008-07-22 2009-07-10 Procédé, étoffes et machines permettant d'obtenir des sacs et des articles similaires sans couture Withdrawn EP2305571A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES200802170A ES2345080B2 (es) 2008-07-22 2008-07-22 Procedimiento para la obtencion de bolsas y similares de tejido sin ningun cosido.
ES200901268A ES2354547B2 (es) 2009-05-22 2009-05-22 Tejido y maquina para la fabricacion de bolsas.
PCT/ES2009/000361 WO2010010205A1 (fr) 2008-07-22 2009-07-10 Procédé, étoffes et machines permettant d'obtenir des sacs et des articles similaires sans couture

Publications (1)

Publication Number Publication Date
EP2305571A1 true EP2305571A1 (fr) 2011-04-06

Family

ID=41570046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09800084A Withdrawn EP2305571A1 (fr) 2008-07-22 2009-07-10 Procédé, étoffes et machines permettant d'obtenir des sacs et des articles similaires sans couture

Country Status (3)

Country Link
EP (1) EP2305571A1 (fr)
CN (1) CN102105364A (fr)
WO (1) WO2010010205A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT512806B1 (de) * 2012-04-23 2014-01-15 Bsw Machinery Handels Gmbh Gewebe für die Herstellung von Säcken
CN105269621A (zh) * 2015-09-18 2016-01-27 王跃军 一种eps保温板用设备及切割方法
CN108842259B (zh) * 2018-06-27 2019-12-27 桐乡波力科技复材用品有限公司 woven布手工编织机
TWI702173B (zh) * 2019-05-30 2020-08-21 張瑞興 雙層防潮袋單工序作業裝置
CN110346377A (zh) * 2019-07-11 2019-10-18 浙江蒲惠智造科技有限公司 基于机器视觉的无纺布表面检测系统及其检测方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE531575A (fr) *
FR802430A (fr) * 1936-02-26 1936-09-04 Procédé de fabrication de sacs et produit nouveau en résultant
ES8308259A1 (es) * 1982-09-18 1983-09-16 Intermas Sa "procedimiento para la confeccion de sacos y similares".
ES1003058U (es) * 1987-08-03 1988-07-01 Mitjans Canalda Juan Envase multiple monopieza
US4909636A (en) * 1988-04-26 1990-03-20 Cupples Paper Bag Company Coupon for T-shirt grocery bag
FR2649728B1 (fr) * 1989-07-13 1992-01-03 Bordenoud Sarl Sacherie Procede pour la realisation de sacs par tissage et nouveau type de sacs
AT392806B (de) * 1989-09-21 1991-06-25 Chemiefaser Lenzing Ag Sackgewebe
US7093978B2 (en) * 2004-05-20 2006-08-22 Gregorio Lim Tan Pre-cut plastic bag roll, method and apparatus for making same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010010205A1 *

Also Published As

Publication number Publication date
WO2010010205A4 (fr) 2010-04-08
WO2010010205A8 (fr) 2011-02-03
CN102105364A (zh) 2011-06-22
WO2010010205A1 (fr) 2010-01-28

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