DK180830B1 - Method for manufacturing reinforcement meshes, and apparatus therefor - Google Patents

Method for manufacturing reinforcement meshes, and apparatus therefor Download PDF

Info

Publication number
DK180830B1
DK180830B1 DKPA201900629A DKPA201900629A DK180830B1 DK 180830 B1 DK180830 B1 DK 180830B1 DK PA201900629 A DKPA201900629 A DK PA201900629A DK PA201900629 A DKPA201900629 A DK PA201900629A DK 180830 B1 DK180830 B1 DK 180830B1
Authority
DK
Denmark
Prior art keywords
wire
unit
supply channel
control unit
channel
Prior art date
Application number
DKPA201900629A
Other languages
Danish (da)
Inventor
Brask Claus
Offersen Kurt
Original Assignee
Pedax Gmbh
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
Application filed by Pedax Gmbh filed Critical Pedax Gmbh
Priority to DKPA201900629A priority Critical patent/DK180830B1/en
Priority to PCT/EP2020/063801 priority patent/WO2020234234A1/en
Priority to EP20726810.3A priority patent/EP3972752B1/en
Publication of DK201900629A1 publication Critical patent/DK201900629A1/en
Application granted granted Critical
Publication of DK180830B1 publication Critical patent/DK180830B1/en
Publication of DK201900629A8 publication Critical patent/DK201900629A8/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/02—Making wire network, i.e. wire nets without additional connecting elements or material at crossings, e.g. connected by knitting
    • B21F27/06—Manufacturing on twister-gear machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/14—Twisting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F15/00—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire
    • B21F15/02—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire
    • B21F15/04—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire without additional connecting elements or material, e.g. by twisting
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/04—Mats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
    • B21D11/12—Bending specially adapted to produce specific articles, e.g. leaf springs the articles being reinforcements for concrete
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/02—Making wire network, i.e. wire nets without additional connecting elements or material at crossings, e.g. connected by knitting

Abstract

The present invention relates to a method for manufacturing reinforcement meshes, and to an apparatus for use in such a method. The apparatus comprises an infeed unit, an infeed channel, a plurality of spinning stations, a plurality of positioning units, and a programmable control unit.

Description

DK 180830 B1 System for manufacturing reinforcement meshes Technical field of the invention The present invention relates to a system for manufacturing reinforcement meshes. Background of the invention In attempts to reduce production costs in connection with reinforcement for civil works, particularly reinforcement for larger areas of concrete, such as decks, slabs or other elements, it is known in the art (e.g., WO2008119357 or US7909067) to manufacture reinforcement nets or meshes, typically defining a mesh of reinforcement rods and wires. Such nets or meshes are easy to store and transport because they may be rolled up on a reel.
WO2006097100 discloses a reinforcement mesh comprising reinforcement bars, which are tied together by means of twisted wires. A method is disclosed where two wires are rolled up on their respective wire coils, which are mounted opposite each other on a rotatable shaft, and wherein each of the wires is guided by a wire guide element downwards in a direction toward the common twisting point of the wires. Meshes of surface-treated, coated, wires and bars may be made in this manner, there being no external impact that can damage the surface.
Nets for relatively small areas are needed for many types of applications, but the current manufacturing process of such nets does not allow for optimal utilization of the manufacturing machine's capacity. Another known problem is that the produced nets tend to curve rather than being flat.
It is an object of the present invention to solve the above-mentioned problems.
> DK 180830 B1 Description of the invention One aspect relates to a system for making a reinforcement mesh for use in concrete structures, the apparatus comprising: - an infeed unit; - an infeed channel; - a plurality of spinning stations arranged in a side-by-side relationship, and positioned along said infeed channel, - a positioning unit positioned along said infeed channel; and - a programmable control unit configured to control the activation of the positioning unit; wherein the programmable control unit, in response to a user input, is configured to activate the positioning unit to position a reinforcement rod within the infeed channel at a predefined position; wherein said spinning stations comprises: a) a rotatable shaft adapted for being driven by a drive unit; b) two wire coils mounted diametrically opposite each other on said rotatable shaft. and c) a wire guide secured to the shaft end opposite to the two wire coils; wherein the drive unit is configured to perform a wire spacer forming operation by rotating the rotatable shaft a pre-set period of time or a pre-set number of revolutions, and to change the rotatable shafts direction of rotation between a first and a second spacer forming operation; wherein the system further comprises: - a position determining means adapted for determining the position of the front end of a reinforcement rod; wherein the position determining means comprises blocking means pivotally extending into the infeed channel at a predefined distance from the entrance of the infeed channel, wherein when the blocking means is tilted by the front end of a reinforcement rod moving within the infeed channel, said blocking means is configured to signal this activation to the programmable control unit; wherein the programmable control unit is configured to use the time of activation and the
2 DK 180830 B1 position of the blocking means to activate one or more positioning units positioned along the infeed channel for a period of time corresponding to move the reinforcement rod back or forth a predefined distance along the infeed channel.
By shifting the execution of the twisting operation, i.e., the wire spacer forming operation, the formed reinforcement mesh will not tend to curve. The wire spacer forming operation may be performed simultaneously at multiple sites along the length of each of a plurality of reinforcement bars positioned in continuation of each other. Thereby, reinforcement meshes wider than the individual reinforcement bars may be produced. Alternatively, a plurality of reinforcement meshes may be produced in line at the same time. In the latter situation, the reinforcement bars are positioned in continuation of each other and with a predetermined distance therebetween.
The positioning operation may comprise the steps of: - feeding a plurality ofreinforcement rods to the infeed channel in communication with the plurality of spinning stations; - positioning the plurality of reinforcement rods within the infeed channel to a predefined distance between one another along the longitudinal direction of the infeed channel. After the reinforcement rods are fixed, they may subsequently be removed from the infeed channel.
In general, by using an infeed channel, it is secured that the reinforcement rods are positioned precisely in continuation of each other, and the preferred distance between them can be easily controlled.
The positioning of the plurality of reinforcement rods within the infeed channel to a predefined distance between one another along the longitudinal direction of the infeed channel is performed by using a plurality of positioning units positioned
4 DK 180830 B1 along the infeed channel. In the present context, the term “a plurality of” is to be understood as two or more units, such as three or more units.
The positioning of the plurality of reinforcement rods within the infeed channel is performed with the positioning unit, preferably a plurality of positioning units. In one or more embodiments, the reinforcement rods positioned within the infeed channel are of different length and/or diameter and/or material property. Thus, the selection of reinforcement rods is chosen in order to provide reinforcement meshes having varying properties adapted for their end use. In one or more embodiments, the amount and/or predefined distances between the reinforcement rods in a first cycle are different from the amount and/or predefined distances between the reinforcement rods in a second cycle. The spinning station comprises: - a rotatable shaft adapted for being driven by a drive unit; - two wire coils mounted diametrically opposite each other on said rotatable shaft. and - a wire guide secured to the shaft end opposite to the two wire coils; wherein the drive unit is configured to perform a wire spacer forming operation by rotating the rotatable shaft a pre-set period of time or a pre-set number of revolutions, and to change the rotatable shafts direction of rotation between a first and a second spacer forming operation. In one or more embodiments, the wire guide comprises two brake units each adapted for controlling the roll-out of wire from each wire coil.
In one or more embodiments, each brake unit comprises:
DK 180830 B1 - a first wire guide wheel; and - a second wire guide wheel with a braking mechanism. Preferably, the wire guide wheels are provided with a guide track. The wire from the coil is first routed around the first guide wheel and then around the second guide wheel. The use 5 of two guide wheels is to maintain the wire direction from the wire coils. In one or more embodiments, the wire guide comprises two curved leaf springs each extending forward relative to the brake unit and each with a free end resiliently resting on one another or at least resiliently facing one another thereby defining a gap preferably being a few millimetres, such as 1-20 mm, e.g., 1-10 mm, preferably 1-5 mm. This configuration forms a space between the leaf springs that is sized to receive a reinforcement rod perpendicularly to the leaf springs. The free end of each leaf spring comprises a wire guide channel adapted for receiving the wire exiting each brake unit. Thereby, the two wires are guided towards each other.
In one or more embodiments, the spinning station further comprises pulling means adapted for pulling in a reinforcement rod in a direction perpendicular to the length of the rod. In one or more embodiments, the pulling means are adapted to pull a reinforcement rod in a direction perpendicular to the length of the rod across the free ends of the leaf springs. Thereby said free ends are forced away from each other until the reinforcement rod has passed. The free ends will then, due to their resilient nature, return to their initial position.
In one or more embodiments, the programmable control unit, in response to a user input, is configured to activate the positioning unit(s) to position a plurality of reinforcement rods within the infeed channel to a predefined distance between one another along the longitudinal direction of the infeed channel.
The positioning unit(s) may be configured as roll feeders, and more particularly as a pair of feed rolls. In one or more embodiments, the system further på DK 180830 B1 comprises a pair of feed rolls positioned at the entrance of the infeed channel. Preferably, two pairs of feed rolls are positioned at the entrance of the infeed channel, such as in the form of a linear feed drive. In one or more embodiments, the pair of feed rolls or the feed drive is configured to register when the backend of the reinforcement rod leaves a pair of feed rolls and to provide this information to the programmable control unit; wherein said programmable control unit uses this point intime and/or specific position of the backend of the reinforcement rod to activate one or more positioning units positioned along the infeed channel for a period of time corresponding to moving the reinforcement rod a predefined distance along the infeed channel. The specific position of the backend of the reinforcement rod within the infeed channel will always thereby be known. As the length of a reinforcement rod fed into the infeed channel is known by the programmable control unit, e.g., due to user input, it is possible for the programmable control unit to position the front end of a subsequent reinforcement rod entering the infeed channel a predefined distance from the backend of the previous reinforcement rod that has already been positioned within the infeed channel. In one or more embodiments, the bottom of the infeed channel is configured for moving up and down. When the wire spacer forming operation has been terminated for a specific reinforcement rod, the programmable control unit may be configured to lower the bottom of the infeed channel to promote the release of the reinforcement rod therefrom, and configured to raise the bottom of the infeed channel again when said reinforcement rod has been removed, thereby making the infeed channel ready for receiving a new reinforcement rod. When the positioning unit(s) are configured as roll feeders, said roll feeders may be configured to open and close synchronously with up and down movement of the infeed channel. This operation may also be controlled by the programmable control unit.
Especially, but not exclusively, when the positioning unit(s) are configured as roll
, DK 180830 B1 feeders there may be a slight error in the positioning operation when a reinforcement rod has an uneven surface.
This issue may not be problematic for positioning a single reinforcement rod within the infeed channel, but if more than one reinforcement rod needs to be positioned in line within the infeed channel with a predefined distance therebetween, the sum of positioning errors may be enough to cause problems.
In order to solve this problem, the system comprises a position determining means adapted for determining the position of the front end of the reinforcement rod positioned furthest inside the infeed channel.
The position determining means comprises blocking means, such as a plate or rod,
pivotally extending into the infeed channel at predefined distance from the entrance of the infeed channel, preferably positioned at least halfway into the infeed channel, and more preferably positioned in the last 5-40% of the infeed channel.
When the front end of a reinforcement rod moving within the infeed channel hits the blocking means, said blocking means tilts and signals to the programmable control unit.
The programmable control unit may then be configured to use the time of activation and the position of the blocking means to activate one or more positioning units positioned along the infeed channel for a period of time corresponding to move the reinforcement rod back or forth a predefined distance along the infeed channel.
The remaining distance needed to move the reinforcement rod will thereby be relatively short, thus reducing the risk of erroneous positioning.
It should be noted that embodiments and features described in the context of one of the aspects of the present invention also apply to the other aspects of the invention.
Brief description of the figures Figure 1 shows a perspective view of an apparatus for manufacturing a reinforcement mesh in accordance with various embodiments of the invention.
2 DK 180830 B1 Figure 2 is an enlarged view of a part of the apparatus shown in Figure 1 showing a spinning station and a positioning unit in accordance with various embodiments of the invention. Figure 3 is an enlarged view of a part of the apparatus shown in Figure 1 showing a wire guide in accordance with various embodiments of the invention. Figure 4 is an enlarged view of a part of the apparatus shown in Figure 1 showing an infeed unit in accordance with various embodiments of the invention.
Figures 5-7 are enlarged views of a part of the apparatus shown in Figure 1 showing a position determining means in accordance with various embodiments of the invention.
Detailed description of the invention Referring to Figure 1, the general scheme of the invention is shown in perspective view. Figure 1 shows an apparatus 100 for manufacturing reinforcement meshes for reinforced concrete structures. The apparatus 100 comprises an infeed unit 200, an infeed channel 300, six spinning stations 400A-F, two positioning units 500A- B, and a programmable control unit 600. When a reinforcement rod is positioned in the infeed unit 200, the control unit 600, based on user input, activates the infeed unit 200 and the positioning units 500 to corporate in positioning the reinforcement rod at a preset position within the infeed channel 300. This process is continued until all reinforcement rods are positioned within the infeed channel 300. The control unit 600 then instruct the spinning stations 400 to fix the reinforcement rods with wire binders to form a mesh having the rods arranged at a predefined distance between one another along the longitudinal direction of the mesh. The infeed channel 300 then opens to release the reinforcement rods fixed in the mesh therefrom. A new cycle is then initiated.
o DK 180830 B1 The reinforcement meshes produced may be rolled up around itself at mesh rolling means (not shown) at a lower part of the spinning stations, such that the rods are kept essentially parallel, and such that the wire binders of the meshes form spiraling paths. The mesh rolling means may comprise a roll up chain system.
The six spinning stations 400A-F are arranged in a side-by-side relationship and positioned along the infeed channel 300. Hence, all spinning stations are fed from the same infeed channel 300. The six spinning stations 400A-F each (exemplified with spinning station 400A as shown in Figure 2) comprises a rotatable shaft 410 adapted for being driven by a drive unit 420, preferably a common drive unit; two wire coils 430 mounted diametrically opposite each other on said rotatable shaft 410; and a wire guide 450 secured to the shaft end opposite to the two wire coils 430. The drive unit 420 is configured to perform a wire spacer forming operation by rotating the rotatable shaft 410 a pre-set period of time or a pre-set number of revolutions, and to change the rotatable shafts 410 direction of rotation between a first and a second spacer forming operation. In Figure 3, the wire guide 450 is shown comprising two brake units 452 each adapted for controlling the roll-out of wire from each wire coil 430. Each brake unit 452 comprises a first wire guide wheel 454, and a second wire guide wheel 456 with a braking mechanism. The wire guide wheels 454, 456 are each shown with a guide track 455, 457. The wire (not shown) from the coil is first routed around the first guide wheel 454 and then around the second guide wheel 456.
The use of two guide wheels is to maintain the wire direction from the wire coils. The first 454 and second 456 guide wheels are mounted in a housing 458, and both housings for each brake unit are mounted on a common mounting plate 459 extending therefrom. A wire guide channel is formed through the mounting plate 459 and the housing 458 adapted for receiving the wire from the wire coil 430.
The wire guide 450 also comprises two curved leaf springs 460 each extending
0 DK 180830 B1 forward relative to the brake unit 452 and each with a free end 462 resiliently resting on one another, or at least resiliently facing one another thereby defining a gap preferably being a few millimetres, such as 1-20 mm, e.g., 1-10 mm, preferably 1-5 mm. This configuration forms a space between the leaf springs 460 that is sized to receive a reinforcement rod perpendicularly to said leaf springs 460. The free end 462 of each leaf spring 460 comprises a wire guide channel 464 adapted for receiving the wire exiting each brake unit 452. Thereby, the two wires are guided towards each other.
The bottom of the infeed channel 300 is configured for moving up and down. When the wire spacer forming operation has been terminated for a specific reinforcement rod, the programmable control unit is configured to lower the bottom of the infeed channel 300 to promote the release of the reinforcement rod therefrom, and configured to raise the bottom of the infeed channel 300 again when said reinforcement rod has been removed, thereby making the infeed channel ready for receiving a new reinforcement rod. The positioning units 500A, 500B are configured as roll feeders, and more particularly as a pair of feed rolls 510 (Figure 2). The roll feeders 510 are configured to open and close synchronously with up and down movement of the infeed channel 300. This operation is also controlled by the programmable control unit 600.
The spinning station 400 further comprises pulling means 440 adapted for pulling in a reinforcement rod in a direction perpendicular to the length of the rod. The pulling means 440 are adapted to pull a reinforcement rod in a direction perpendicular to the length of the rod across the free ends 462 of the leaf springs
460. Thereby said free ends 462 are forced away from each other until the reinforcement rod has passed. The free ends 462 will then, due to their resilient nature, return to their initial position.
The infeed unit 200 (Figure 4) comprises two pairs of feed rolls 210A, 210B positioned at the entrance 310 of the infeed channel 300 in the form of a linear feed drive. The linear feed drive is configured to register when the backend of a
1 DK 180830 B1 reinforcement rod leaves a pair of feed rolls 210A, 210B and to provide this information to the programmable control unit 600. The programmable control unit uses this point in time and/or specific position of the backend of the reinforcement rod to activate the positioning units 500 positioned along the infeed channel 300 for a period of time corresponding to moving the reinforcement rod a predefined distance along the infeed channel 300. The placement of a reinforcement rod into the infeed unit 200 may simply be performed by manually placing a reinforcement rod from a rod storage rack (not shown). However, reinforcement rods may alternatively be placed in the infeed unit 200 by an automatic feeding device (not shown) adapted for the purpose. The rod storage rack may comprise shelves, e.g., for storing reinforcement rods having different properties with respect to length, diameter or material properties. Thus, reinforcement rods may be chosen in order to provide reinforcement meshes having varying properties adapted for their end use.
The programmable control unit 600 is configured to control the operation of the infeed unit 200, the positioning units 500, and the spinning stations 400.
The system shown also comprises a position determining means 700 adapted for determining the position of the front end of a reinforcement rod. The position determining means 700 comprises blocking means 710 (Figures 5-7) pivotally extending into the infeed channel 300 at a predefined distance from the entrance 310 of the infeed channel 300. When the blocking means 710 is tilted by the front end of a reinforcement rod (not shown) moving within the infeed channel 300, said blocking means 710 is configured signal this activation to the programmable control unit 600. The programmable control unit 600 is configured to use the time of activation and the position of the blocking means to activate the positioning units 500 positioned along the infeed channel 300 for a period of time corresponding to move the reinforcement rod back or forth a predefined distance along the infeed channel 300.
12 DK 180830 B1 Apart from the blocking means 710, the position determining means 700 comprises a sensor 720, such as an inductive sensor, configured for sensing when the blocking means 710 tilts.
The blocking means 710 is connected to a pneumatic or hydraulic cylinder 730 adapted for returning the blocking means 710 to its un-tilted position.
12 DK 180830 B1 References 100 Apparatus for manufacturing reinforcement meshes 200 Infeed unit 210 Feed roll 300 Infeed channel
310 Entrance 400 Spinning station 410 Rotatable shaft 420 Drive unit
430 Wire coll 440 Pulling means 450 Wire guide 452 Brake unit 453 Wire guide channel
454 First wire guide wheel 455 Guide track 456 Second wire guide wheel 457 Guide track 458 Brake unit housing
459 Mounting plate 460 Leaf spring 462 Free end 464 Wire guide channel 500 Positioning unit
510 Feed roll 600 Control unit 700 Position determining means 710 Blocking means 720 Sensor
730 Pneumatic or hydraulic cylinder

Claims (10)

DK 180830 B1 14 PATENTKRAVDK 180830 B1 14 PATENT REQUIREMENTS 1. System (100) til fremstilling af et armeringsgitter til anvendelse i beton- strukturer, hvor indretningen (100) omfatter: - en tilførselsenhed (200); - en tilførselskanal (300); - en flerhed af spindestationer (400), som er anbragt i et side om side forhold og positioneret langs tilførselskanalen (300); - en positioneringsenhed (500), som er positioneret langs tilførselskanalen (300); og - en programmerbar styreenhed (600), som er indrettet til at styre aktiveringen af positioneringsenheden (500); hvor den programmerbare styreenhed (600) som reaktion på en brugerindlæsning er indrettet til at aktivere positioneringsenheden (500) til at positionere en arme- ringsstang inde i tilførselskanalen (300) på en forudbestemt position; hvor spindestationerne (400) omfatter: a) en roterbar aksel (410), som er tilpasset til at blive drevet af en drivenhed (420); b) to wirespoler (430), som er monteret diametralt modsat hinanden på den roter- bare aksel (410); og c) en wirestyring (450), som er sikret til akselenden modsat de to wirespoler (430); hvor drivenheden (420) er indrettet til at gennemføre en wiremellemrums- dannende operation ved rotation af den roterbare aksel (410) i et forudindstillet tidsrum eller et forudindstillet antal omdrejninger og til at ændre den roterbare aksels rotationsretning mellem en første og en anden mellemrumsdannende operation; kendetegnet ved, at systemet (100) endvidere omfatter: - et positionsbestemmelsesorgan (700), som er tilpasset til at bestemme positio- nen af forenden af en armeringsstang; hvor positioneringsbestemmelsesorganet (700) omfatter et blokeringsorgan (710), som drejeligt strækker sig ind i tilførselskanalen (300) i en forudbestemt afstand fra indgangen (310) af tilførselskanalen (300); hvor blokeringsorganet (710), når blokeringsorganet (710) vippes af forenden af en armeringsstang, som bevægerA system (100) for manufacturing a reinforcing grid for use in concrete structures, the device (100) comprising: - a supply unit (200); - a supply channel (300); a plurality of spinning stations (400) disposed in a side-by-side relationship and positioned along the feed channel (300); a positioning unit (500) positioned along the supply channel (300); and - a programmable control unit (600) adapted to control the activation of the positioning unit (500); wherein the programmable control unit (600) in response to a user input is arranged to activate the positioning unit (500) to position a reinforcing bar inside the supply channel (300) at a predetermined position; wherein the spinning stations (400) comprise: a) a rotatable shaft (410) adapted to be driven by a drive unit (420); b) two wire coils (430) mounted diametrically opposite each other on the rotatable shaft (410); and c) a wire guide (450) secured to the shaft end opposite the two wire coils (430); wherein the drive unit (420) is arranged to perform a wire gap forming operation by rotating the rotatable shaft (410) for a preset time or a preset number of revolutions and to change the direction of rotation of the rotatable shaft between a first and a second gap forming operation; characterized in that the system (100) further comprises: - a position determining means (700) adapted to determine the position of the front end of a reinforcing bar; wherein the positioning determining means (700) comprises a blocking means (710) rotatably extending into the supply channel (300) at a predetermined distance from the entrance (310) of the supply channel (300); wherein the blocking means (710), when the blocking means (710) is tilted by the front end of a reinforcing bar which moves DK 180830 B1 sig inde i tilførselskanalen (300), er indrettet til at signalere denne aktivering til den programmerbare styreenhed (600); hvor den programmerbare styreenhed (600) er indrettet til at anvende aktiveringstidspunktet og blokeringsorganets (710) position til at aktivere en eller flere positioneringsenheder (500), som er positione- 5 ret langs tilførselskanalen (300), i et tidsrum, som svarer til at bevæge armerings- stangen tilbage eller frem i en forudbestemt afstand langs tilførselskanalen (300).DK 180830 B1 inside the supply channel (300), is arranged to signal this activation to the programmable control unit (600); wherein the programmable controller (600) is arranged to use the activation time and the position of the blocking means (710) to activate one or more positioning units (500) positioned along the supply channel (300) for a period of time corresponding to move the reinforcement bar backwards or forwards at a predetermined distance along the supply channel (300). 2. System (100) ifølge krav 1, hvor tilførselsenheden (200) endvidere omfatter et par fremføringsruller (210), som er positioneret ved indgangen af tilførsels- kanalen (300); hvor tilførselsenheden (200) er indrettet til at registrere, når bag- enden af en tilført armeringsstang forlader parret af fremføringsruller (210), og til at forsyne den programmerbare styreenhed (600) med denne information; hvor den programmerbare styreenhed (600) er indrettet til at anvende dette tidspunkt og/eller denne specifikke position af bagenden af armeringsstangen til at aktivere en positioneringsenhed (500), som er positioneret langs tilførselskanalen (300), i et tidsrum, som svarer til at bevæge armeringsstangen en forudbestemt afstand langs tilførselskanalen (300).The system (100) of claim 1, wherein the feed unit (200) further comprises a pair of feed rollers (210) positioned at the entrance of the feed channel (300); wherein the supply unit (200) is arranged to detect when the rear end of a supplied reinforcement bar leaves the pair of feed rollers (210), and to provide the programmable control unit (600) with this information; wherein the programmable control unit (600) is adapted to use this time and / or this specific position of the rear end of the reinforcing bar to activate a positioning unit (500) positioned along the supply channel (300) for a period of time corresponding to move the reinforcing bar a predetermined distance along the supply channel (300). 3. System (100) ifølge et hvilket som helst af kravene 1-2, hvor wirestyringen (450) omfatter to bremseenheder (452), som hver især er tilpasset til at styre udrulningen af wire fra hver wirespole (430).A system (100) according to any one of claims 1-2, wherein the wire guide (450) comprises two braking units (452), each of which is adapted to control the unwinding of wire from each wire spool (430). 4. System (100) ifølge krav 3, hvor hver bremseenhed (452) omfatter: - et første wirestyrehjul (454); og - et andet wirestyrehjul (456) med en bremsemekanisme.The system (100) of claim 3, wherein each brake unit (452) comprises: - a first wire guide wheel (454); and - a second wire guide wheel (456) with a braking mechanism. 5. System (100) ifølge krav 4, hvor wirestyrehjulene (454, 456) er forsynet med en glideføring (455, 457).The system (100) of claim 4, wherein the wire guide wheels (454, 456) are provided with a slide guide (455, 457). 6. System (100) ifølge et hvilket som helst af kravene 1-5, hvor wirestyringen (450) omfatter to buede bladfjedre (460), som hver især strækker sig fremad iA system (100) according to any one of claims 1-5, wherein the wire guide (450) comprises two curved leaf springs (460), each extending forward in DK 180830 B1 16 forhold til bremseenheden, og hver især med en fri ende, som fjedrende hviler ovenpå hinanden eller mindst fjedrende vender mod hinanden, hvorved de definerer en spalte.DK 180830 B1 16 relation to the brake unit, and each with a free end, which resiliently rests on top of each other or at least resiliently faces each other, whereby they define a gap. 7. System (100) ifølge krav 6, hvor wirestyringen (450) omfatter to bremse- enheder (452), som hver især er tilpasset til at styre udrulningen af wire fra hver wirespole (430), og hvor den frie ende (462) af hver bladfjeder (460) omfatter en wirestyrekanal (464), som er tilpasset til at optage wiren, som kommer ud af hver styreenhed (452).The system (100) of claim 6, wherein the wire guide (450) comprises two brake units (452), each adapted to control the unwinding of wire from each wire spool (430), and wherein the free end (462) of each leaf spring (460) includes a wire guide channel (464) adapted to receive the wire coming out of each control unit (452). 8. System (100) ifølge et hvilket som helst af kravene 1-7, hvor spindestationen (400) endvidere omfatter trækorganer (440), som er tilpasset til at trække i en armeringsstang i en retning vinkelret på stangens længde.The system (100) of any of claims 1-7, wherein the spinning station (400) further comprises pulling means (440) adapted to pull in a reinforcing bar in a direction perpendicular to the length of the bar. 9. System (100) ifølge et hvilket som helst af kravene 1-8, hvor den program- merbare styreenhed (600) som reaktion på en brugerindlæsning er indrettet til at aktivere positioneringsenheden/-enhederne (500) til at positionere en flerhed af armeringsstænger inde i tilførselskanalen til en forudbestemt afstand mellem hinanden langs tilførselskanalens (300) længderetning.A system (100) according to any one of claims 1-8, wherein the programmable control unit (600) in response to a user input is arranged to activate the positioning unit (s) (500) to position a plurality of reinforcing bars inside the supply channel to a predetermined distance between them along the longitudinal direction of the supply channel (300). 10. System (100) ifølge et hvilket som helst af kravene 1-9, hvor positionerings- enheden/-enhederne (500) er indrettet som rullefremførere, såsom et par frem- føringsruller (510).A system (100) according to any one of claims 1-9, wherein the positioning unit (s) (500) are arranged as roller feeders, such as a pair of feed rollers (510).
DKPA201900629A 2019-05-23 2019-05-23 Method for manufacturing reinforcement meshes, and apparatus therefor DK180830B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DKPA201900629A DK180830B1 (en) 2019-05-23 2019-05-23 Method for manufacturing reinforcement meshes, and apparatus therefor
PCT/EP2020/063801 WO2020234234A1 (en) 2019-05-23 2020-05-18 Method for manufacturing reinforcement meshes, and apparatus therefor
EP20726810.3A EP3972752B1 (en) 2019-05-23 2020-05-18 Apparatus for manufacturing reinforcement meshes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DKPA201900629A DK180830B1 (en) 2019-05-23 2019-05-23 Method for manufacturing reinforcement meshes, and apparatus therefor

Publications (3)

Publication Number Publication Date
DK201900629A1 DK201900629A1 (en) 2021-02-08
DK180830B1 true DK180830B1 (en) 2022-05-09
DK201900629A8 DK201900629A8 (en) 2022-05-12

Family

ID=70775397

Family Applications (1)

Application Number Title Priority Date Filing Date
DKPA201900629A DK180830B1 (en) 2019-05-23 2019-05-23 Method for manufacturing reinforcement meshes, and apparatus therefor

Country Status (3)

Country Link
EP (1) EP3972752B1 (en)
DK (1) DK180830B1 (en)
WO (1) WO2020234234A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK181013B1 (en) 2021-06-16 2022-09-22 Pedax Gmbh Apparatus for manufacturing reinforcement meshes and a spinning station therefor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1491364A (en) * 1921-09-01 1924-04-22 Taylor John William Wire fabric
AU476618B2 (en) * 1974-09-17 1976-03-25 Lincoln College Apparatus and method for making and fixing droppers onto the line wires of fences
GB2159842A (en) * 1984-04-16 1985-12-11 Bekaert Sa Nv Reinforcing net
WO2006097100A1 (en) * 2005-02-17 2006-09-21 Spinmaster Aps A method, an apparatus and a means for making a reinforcement mesh
DK200500081U3 (en) * 2005-03-31 2005-06-10 Offersen Kurt Machine for making the roller net with threads and reinforcing bars
WO2008119357A1 (en) 2007-03-29 2008-10-09 Spinmaster Aps Apparatus for manufacturing reinforcement meshes and corresponding method
JP6040292B1 (en) * 2015-07-08 2016-12-07 ペダックス・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツングＰｅｄａｘ Ｇｍｂｈ Method and apparatus for manufacturing reinforced mesh

Also Published As

Publication number Publication date
DK201900629A8 (en) 2022-05-12
DK201900629A1 (en) 2021-02-08
EP3972752B1 (en) 2023-11-22
EP3972752A1 (en) 2022-03-30
WO2020234234A1 (en) 2020-11-26
EP3972752C0 (en) 2023-11-22

Similar Documents

Publication Publication Date Title
EP0533718B1 (en) Arrangement in a coil winding machine for a cable or a similar strandlike product
DK180830B1 (en) Method for manufacturing reinforcement meshes, and apparatus therefor
CA2923318C (en) Automatic core charging and bobbin discharging group in a plastic film winding machine
CN202864580U (en) Connector device and yarn reeling device
CN104030090A (en) Method for operating station for producing textile machine with cross-wound bobbin and relative station
CN102656107A (en) Method and apparatus for controlling the winding of an elongated element onto a collection reel with the interposition of a service fabric
CN101516539A (en) Method and apparatus for winding up metal strips onto a winding mandrel
CN202864581U (en) Connector device and yarn reeling device
CN100352751C (en) Coiling apparatus of yarn
WO2009045181A1 (en) Cable packaging machine
CN214455674U (en) Optical fiber line conveying system
IT9021205A1 (en) WEFT FEEDER FOR WEAVING FRAMES WITH ADJUSTABLE SECTION WINDING GROUP
CN102774696B (en) Yarn winding machine
CN207375507U (en) Roll changer
DK181013B1 (en) Apparatus for manufacturing reinforcement meshes and a spinning station therefor
CN107399637B (en) Precise wire arrangement device of wire winding machine
CN104627738A (en) Method for changing crossed winding bobbins and loom for producing the crossed winding bobbins
CN102328851B (en) Cross winding bobbin replace part and method of operation thereof
CN219279086U (en) Accurate tension creel for prepreg preparation system
WO2008119357A1 (en) Apparatus for manufacturing reinforcement meshes and corresponding method
EP3337743B1 (en) Apparatus and method for handling take-up rolls in a printing system
KR101737594B1 (en) Apparatus For Manufacturing Coil Screens
EP3037372A2 (en) Improved peripheral rewinder machine and method for the production of rolls of tape-shaped material
RU2014108523A (en) DYNAMIC BUFFER FOR CONTINUOUS ENVELOPE FILLING SYSTEM
CN213856401U (en) Wire rod bisecting machine

Legal Events

Date Code Title Description
PAT Application published

Effective date: 20201124

PME Patent granted

Effective date: 20220509