Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
  • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
  • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
  • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
  • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
  • D21F1/00—Wet end of machines for making continuous webs of paper
  • D21F1/0027—Screen-cloths
  • D21F1/0036—Multi-layer screen-cloths
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
  • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
  • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
  • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
  • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
  • B31F1/2845—Details, e.g. provisions for drying, moistening, pressing
  • B31F1/2877—Pressing means for bringing facer sheet and corrugated webs into contact or keeping them in contact, e.g. rolls, belts
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D11/00—Double or multi-ply fabrics not otherwise provided for

Definitions

• the invention relates to a woven belt for a corrugated pasting machine according to the preamble of claim 1.
• the invention has for its object to design a belt for a corrugated gluing machine in such a way that despite multilayer and high mechanical strength, the belt is highly permeable to rapid dehumidification of a product lying thereon.
• the drainage channels can be designed as openings in the weave structure. However, it can also be expedient for the drainage channels to be formed by different thread thicknesses and / or thread structures.
• the drainage channels can be formed by thread gaps, which are formed by omitting or adding threads.
• the drainage channels can be formed by individual threads of a fabric layer, which consist of a material which forms voids after a short time.
• the void-forming thread material is such that it can be processed like a normal single thread for the technical weaving process and spatially serves as a placeholder in the fabric structure. After a certain operating time of the belt, e.g. B. after a normal running-in period, the thread material has formed a cavity which acts as a drainage channel in the fabric structure.
• a thread material with a high proportion of starch has proven to be a void-forming thread material, preferably the void-forming threads consist entirely of starch.
• Thread material made of starch can be processed in the dry state like an ordinary thread; as soon as such a voiding thread of starch comes into contact with water, the starch will dissolve and be washed out with the water. The material of the void-forming thread thus loosens out of the fabric structure, so that a gap is formed which extends over the length and / or width and / or height of the belt as a drainage channel.
• the void-forming thread material can expediently also be a thread material made of cavity fibers which have only low wear resistance. After the belt has run in, the cavity fibers wear out and break open, so that the cavity which is then open to the outside forms a drainage channel. Such cavity fibers also use the Capillary effect for removing liquids from the top of the paper.
• the drainage channels preferably open out on the underside of the belt; in a special embodiment, the drainage channels are designed as cavities projecting through the belt.
• the belt is advantageously woven from plastic threads, which consist of a mixture of about 65% polyester and about 35% viscose.
• temperature-resistant thread material is woven into the narrow edges on the longitudinal edges, that is to say on the edges running in the direction of the warp threads.
• FIG. 4 shows a schematic top view of the paper side of a belt according to FIG. 1.
• FIG. 6 shows a schematic representation of the top view of the upper fabric layer of the belt from FIG. 5 forming the paper side
• FIG. 7 shows a schematic representation of the top view of the lower fabric layer of the belt from FIG. 5,
• FIG. 9 is a schematic representation of the top view of the upper fabric layer of the belt from FIG. 8 forming the paper side
• FIG. 10 is a schematic representation of the top view of the lower fabric layer of the belt from FIG. 8.
• Fig. 1 an embodiment of a belt 1 is shown.
• the belt 1, which is preferably made of plastic threads, consists of an upper fabric layer 10, a middle fabric layer 20 absorbing the tensile forces and a lower fabric layer 30.
• the side of the upper fabric layer 10 facing away from the middle fabric layer 20 absorbing the tensile forces forms the paper side of the fabric belt 1.
• the weft threads 4 run transversely to the longitudinal direction 5 (FIG. 2) of the belt 1.
• warp threads 11, 12, 13 and 14 (FIG. 1, 2) which are offset with respect to one another and run both inwards towards the middle fabric layer 20 and outwards towards the paper side via at least two weft threads 4 each ,
• the middle fabric layer 20 which absorbs the tensile forces, has two warp threads 21, 22 which are offset with respect to one another and each run over two weft threads 4.
• the lower fabric layer 30 consists of four warp threads 31, 32, 33, 34, each offset with respect to one another, which run inwards - to the middle fabric layer 20 - via only one weft thread 4 and outwards via at least three weft threads 4.
• the three fabric layers 10, 20, 30 are woven together by means of binding threads 40, 41, 42, 43.
• the binding threads are each divided into two thread groups, the binding threads 42, 43 forming a thread group running offset from one another and binding the upper fabric layer 10 to the middle fabric layer 20.
• the binding threads 42 and 43 are alternately over a weft thread 4 in the upper fabric layer 10 and a weft 4 in the middle fabric layer 20 out.
• the thread group consisting of the binding threads 40 and 41 binds the lower fabric layer 30 to the middle fabric layer 20 in a corresponding manner.
• At least one warp thread 14 'running in the longitudinal direction 5 of the belt 1 is arranged, which consists of a cavity-forming thread material, that is from a different thread material than the warp threads 11, 12, 13 and 14 of the upper fabric layer 10 provided over the remaining area of the belt.
• the individual warp threads 11 1 , 12 ', 13', 14 'of the paper-forming fabric layer 10 consist of cavity-forming thread material, which communicates with drainage channels 50.
• Each drainage channel 50 is preferably provided as a cavity mechanically woven into the tissue, which extends away from the paper side towards the underside of the belt.
• the cavity 50 preferably opens out on the underside of the belt facing away from the paper side and is in particular designed as a cavity which projects through the belt.
• the cavities 50 are designed in the manner of a drain through which steam is discharged from the paper side of the upper fabric layer 10 through the belt 1.
• the weft threads 4 'or the warp threads 11 ", 12', 13 ', 14' advantageously cross the mechanically woven-in drainage channels 50.
• the drainage channels 50 are at the crossing points between weft threads 4 'and warp threads 11', 12 ', 13' and 14 'arranged.
• a cavity-forming thread material z. B applicable a thread material with a high proportion of starch; prefers the thread material consists entirely of starch.
• the void-forming threads made of starch or with a high proportion of starch can be processed like normal threads. They form placeholders in the fabric structure, which dissolve on contact with liquid, especially water.
• the imperfections that result from dissolving and washing out the starch from the tissue form drainage channels, drainage channels or the like, which each open into the mechanically woven-in drainage channel 50.
• a type of drainage grid is placed in the area between the drainage channels 50, which feeds the liquid directly to the mechanically woven-in drainage channel 50 and thus ensures rapid drainage of the material lying on the fabric belt.
• the warp threads made of the cavity-forming thread material form longitudinal channels and weft threads 4 'of such a cavity-forming thread material transverse channels. Since the longitudinal channels and the transverse channels intersect due to the fabric structure (warp threads / weft threads), the transverse channels and the longitudinal channels are connected to one another in a flow-conducting manner. This ensures rapid removal of the liquid.
• Hollow fibers can also be used as the void-forming thread material. Over a longer period of operation, the void fibers open due to the wear that occurs, so that their inner voids themselves form drainage channels that run in the longitudinal direction of the warp or weft threads.
• warp or weft threads of the further fabric layers 20 and 30 made of void-forming thread material are also provided.
• individual binding threads made of void-forming thread material can be provided, as a result of which drainage channels running from one fabric layer 10 to the other fabric layer 20 can be created in the fabric structure.
• auxiliary thread 4 ′ 1 it may be expedient to provide the void-forming thread material as an auxiliary thread 4 ′ 1 to a warp thread, weft thread or binding thread in order to avoid disturbing the weaving structure.
• the number of warp threads, weft threads and binding threads that determine the fabric structure remains unchanged;
• a thread made of void-forming thread material is added as a thread 4 '' to a warp thread and / or a weft thread and / or a binding thread, which later forms the desired drainage channels as placeholders.
• Void-forming threads can expediently be provided in the fabric layer 10 forming the paper side, it being possible for the further fabric layers 20, 30 to also contain void-forming threads to support the drainage and formation of drainage channels 50.
• Fig. 5 shows a schematic representation of a further woven belt 2 in longitudinal section.
• the belt 2 consists of an upper fabric layer 50 and a lower fabric layer 60.
• the upper fabric layer 50 which forms the paper side
• the four warp threads 51, 52, 53 and 54 arranged offset with respect to one another and in the lower fabric layer 60 the four offset with respect to one another arranged warp threads 61, 62, 63, 64.
• the weft threads 6 run transversely to the longitudinal direction 7, the warp threads each running over two weft threads 6.
• the upper fabric layer 50 and the lower fabric layer 60 are connected to one another by binding threads 44, 45. weaves, the binding threads running offset from one another over a weft thread 6 each.
• FIG. 6 shows a schematic illustration of the top view of the upper fabric layer
• FIG. 7 shows a schematic illustration of the top view of the lower fabric layer of the same belt section as shown in FIG. 6.
• the four warp threads 51, 52, 53 and 54 are arranged next to one another, followed by the two binding threads 44 and 45.
• the threads of the lower fabric layer 60 are, as shown in Fig. 7, woven accordingly.
• the warp thread 52 of the upper fabric layer 50 and the warp threads 62 and 64 of the lower fabric layer 60 have a larger diameter than the other warp threads. Drainage channels are thereby formed, the upper fabric layer 50 having more drainage channels than the lower fabric layer 60.
• the drainage channels can also be formed by the thread structure of the warp threads 51 to 54 and 61 to 64.
• the threads can have grooves in their longitudinal direction, for example.
• a belt 3 which has an upper fabric layer 70 and a lower fabric layer 80.
• the warp threads 71 to 74 of the upper fabric layer 70 and the warp threads 81 to 84 of the lower fabric layer 80 run corresponding to the warp threads 51 to 54 and 61 to 64 in FIG. 5.
• the upper fabric layer 70 and the lower fabric layer 80 are over binding threads 46 and 47 interwoven with one another, the binding threads 46, 47 each running over a weft thread 8 of the fabric layers 70 and 80.
• 9 shows the schematic top view of the belt 3.
• the warp threads 71 to 74 are woven next to one another, followed by the binding threads 46 and 47.
• the drainage channels are made by omitting every second warp thread sequence of the fabric layer 70.
• the lower fabric layer 80 shown in FIG. 10 as a view of the underside of the belt 3 runs corresponding to the lower fabric layer 60 of the belt 2 shown in FIG. 7, wherein the warp threads 81 to 84 of the lower fabric layer 80 can all have the same diameter.
• the temperature-resistant thread material can also extend over the entire width of an upper fabric layer 10, 50, 70 or a lower fabric layer 30, 60, 80 or both a lower and an upper fabric layer.
• the drainage channels 50 can also be designed as openings in the weave structure. For this purpose, adjacent warp threads of a fabric layer can be crossed, for example.
• the thread material can consist of 65% polyester and 35% viscose. However, a different composition can also be advantageous.
• a monofilament can also be used as thread material,

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Textile Engineering (AREA)
• Woven Fabrics (AREA)
• Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
• Paper (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=8164525

Family Applications (1)

Country Status (5)

Families Citing this family (6)

Family Cites Families (13)

• 2001
  • 2001-08-02 JP JP2003519569A patent/JP2004538380A/ja active Pending
  • 2001-08-02 EP EP01974098A patent/EP1412571A1/de not_active Withdrawn
  • 2001-08-02 WO PCT/EP2001/008958 patent/WO2003014447A1/de active Application Filing
  • 2001-08-02 KR KR1020037014796A patent/KR100782661B1/ko active IP Right Grant
• 2004
  • 2004-01-09 US US10/707,752 patent/US6899142B2/en not_active Expired - Lifetime

Non-Patent Citations (1)

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