EP1329287B1 - Meulage de garnitures - Google Patents

Meulage de garnitures Download PDF

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Publication number
EP1329287B1
EP1329287B1 EP03004418A EP03004418A EP1329287B1 EP 1329287 B1 EP1329287 B1 EP 1329287B1 EP 03004418 A EP03004418 A EP 03004418A EP 03004418 A EP03004418 A EP 03004418A EP 1329287 B1 EP1329287 B1 EP 1329287B1
Authority
EP
European Patent Office
Prior art keywords
grinding
lid
card
sensor
cycle
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.)
Expired - Lifetime
Application number
EP03004418A
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German (de)
English (en)
Other versions
EP1329287A1 (fr
Inventor
Jürg Faas
Beat Näf
Christian Sauter
Christian Müller
Yücel YILDIRIM
Roland Styner
Roland Bischof
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Priority claimed from EP99939896A external-priority patent/EP1112144B1/fr
Publication of EP1329287A1 publication Critical patent/EP1329287A1/fr
Application granted granted Critical
Publication of EP1329287B1 publication Critical patent/EP1329287B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
    • B24B29/005—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents using brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/16—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding sharp-pointed workpieces, e.g. needles, pens, fish hooks, tweezers or record player styli
    • B24B19/18—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding sharp-pointed workpieces, e.g. needles, pens, fish hooks, tweezers or record player styli for grinding carding equipment, e.g. card-clothings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/60—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of tools not covered by the preceding subgroups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B24D13/10—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of brushes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/36—Driving or speed control arrangements
    • D01G15/38—Driving or speed control arrangements for use during the grinding of card clothing
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/84—Card clothing; Manufacture thereof not otherwise provided for

Definitions

  • the invention relates to a cover detection system for a card and a card with a lid detection system.
  • the invention is particularly intended for use in combination with a sharpening or grinding device for a garnish consisting of clothing elements, in particular clothing teeth or wires.
  • the trimmings are arranged on lids of a revolving flat card.
  • the invention is suitable for use in the installation of a grinder (sharpening device) in the card, but is not limited thereto, could therefore be applied with a device that should be attached to a card as needed and carried from card to card.
  • the invention is designed so that the device can be used while the card is running. However, this does not represent a limitation, the invention could be applied in a device that works only when stopped (non-producing) card.
  • grinder and sharpener are synonymous in the following description.
  • the programming calculates the grinding schedule and the number of grinding cycles.
  • the calculated number of grinding cycles depends on the selected speed of the lid.
  • the programming starts a grinding cycle.
  • the brush starts. About pneumatic cylinder, the lid are raised by a spring-mounted plate of the device. At the same time, the slide is opened to extract the dust.
  • the long abrasive bristles dive into the clothing and ensure the side grinding.
  • the short ones Bristles touch the clothing and ensure a sharp working edge.
  • the brush remains active only during a handling of all lids. This includes initiator of the lid monitoring the passing lids. After the end of the cycle, the pneumatic cylinders are relieved, the suction is closed and the motor of the brush is switched off. Grinders of the type mentioned have been described in EP-A-800895 and WO99 / 16579.
  • a grinding device according to EP-A-800 895 is further characterized in that it is used not discontinuously but controlled discontinuously (intermittently), wherein the expected (effective) period of use can amount to less than 5% (at most less than 1%) of the life of the card.
  • each flat garnish is preferably ground once, which can normally be ensured simply by counting the passing covers as disclosed in WO99 / 16579.
  • a cover sensor is provided at the grinding point, which counts the lid in passing, so that a feed device remains in the working position until all the lid once (or X times) have passed through the grinding point. Problems arise when the counting is interrupted by a fault (for example due to a power failure).
  • the invention is therefore based on the object to provide a cover detection system for a card, which eliminates the disadvantages mentioned above.
  • This object is achieved according to the invention by a cover detection system having the features of independent patent claim 1.
  • means are provided to identify at least one location on the movable portion of the traveling deck assembly so that the controller, by means of a license plate recognition transmitter, is able to determine which covers have already been ground during an interrupted cycle. In such a case, the cycle may be completed after the fault has been remedied.
  • the machine is provided with means to determine the current "position" of the traveling deck aggregate compared to a given reference point.
  • the reference point is provided with a sensor which responds to the lids passing by it and cooperates with an evaluation to determine the said position of the unit.
  • each cover could be provided with a respective marking (eg with a "barcode"), so that each cover can be recognized as “individual” by means of a suitable sensor. But such an effort is not required to fulfill the purpose - all you need is a labeled lid and a lid counter.
  • the label may take any recognizable form, e.g. a piece of metal that can be scanned magnetically; an additional element which is scanned by means of a proximity sensor; a color mark that can be optically scanned.
  • Non-contact scanning is preferred but is not essential to the principle.
  • the sensor S is preferably located in the vicinity of the grinding device and responds to the lid currently facing the device grinding device, even if the feed device is not activated to deliver the passing cover of the grinding brush for sharpening.
  • the output signal of the sensor S is supplied to the card control KS and the controller is in communication with the grinding device SV.
  • the card control is provided with a memory which contains data relating to the design of the revolving flat unit, in particular with regard to the number of covers in this unit.
  • the card control KS is provided with storage means SP, which holds both the first lid of a triggered grinding cycle and the "current" (currently processed) cover of the cycle - even in the event of a power failure. If e.g. the cycle would have to be interrupted after grinding only three covers, the card control KS after re-run the card, the broken cycle again record at the lid where he has stopped and lead to the end - after the cover recognition system has referenced again if the memories in the card control KS are not able to store the current position of the revolving flat unit in the event of an interruption.
  • a sensor is provided to detect the tag and generate a corresponding signal.
  • a controller is also provided to evaluate the signal and to schedule a maintenance program accordingly Taxes. This ensures that all (or only selected) covers in the maintenance program are considered (edited). It can be at least one lid, but possibly several lids are marked. If not all lids are marked, a counter can be provided to identify the other lids individually.
  • the maintenance program preferably includes grinding, but may also include other maintenance position, e.g. the cleaning.
  • the lid detection system could e.g. be linked with a quality inspection system that would allow the detection of errors in individual lids.
  • the present invention is particularly designed for use in grinding or sharpening clothing elements in the form of hooks, as they are normally found in the set of traveling lids of a revolving flat card.
  • the traveling lids are thereby guided past the stationarily arranged grinding device, whereby the clothing elements are ground.
  • the traveling lid is passed by the grinding device several times until the grinding process is ended.
  • each flat bar is sharpened only once per grinding cycle.
  • the grinding process is to be used at predetermined times. This can take place, depending on the fiber material, pollution and wear of the clothing elements a more or less frequent grinding of the clothing elements.
  • Fig. 1 is a known Wanderdeckelkarde 1, for example, the card C50 of the Applicant, shown schematically.
  • the fibrous material is fed into the hopper 2 in the form of dissolved and cleaned flakes, taken over by a breech or licker-in 3 as a cotton pad, transferred to a drum or drum 4 and dissolved and cleaned by a traveling lid set. Fibers from the fibrous web located on the drum 4 are then removed by a pickup 7 and formed into a carding belt 9 in an outfeed section 8 consisting of different rollers.
  • This card sliver 9 is then from a tape tray 10 stored in a transport can 11.
  • the card is provided with a "main suction", which waste can be removed. Such suction is not specifically shown in FIG.
  • the traveling lid set comprises revolving lid bars, which are not shown individually in FIG. 1, but indicated in FIG. 2 by reference numeral 13. Each bar 13 is provided with a clothing.
  • the covers 13 are attached to a chain or a belt 5 (eg according to EP-A-753 610) and they are thereby a closed “cover path" (via deflection rollers 6) along or in the same direction to the direction of rotation of the drum 4 is moved on a "Vorlauf" (from an inlet point E to a discharge point A) made the carding and cleaned on the "return” the lid at a cleaning station 60.
  • the cleaning device has been explained in detail in EP-A-800 894. Subsequently, e.g. at the point 62, the lid 13 are ground according to EP-A-800 895.
  • FIG. 2 shows the preferred arrangement of the sharpening and grinding device on a carding machine 1 with a traveling lid unit.
  • a roller 204 is arranged with grinding elements in the direction of the flat bars 13 following the Dedcelgenesissvorraum 60 At this point, has proven from the available space as well as the operability of a very good arrangement of the grinding device.
  • the arrangement corresponds essentially to the arrangement according to FIG. 1, which designates the grinding point 62 likewise following the cleaning point 60.
  • the direction of rotation of the roller 204 (or the brush) is opposite to the direction of rotation of the drum 4.
  • the grinding point is characterized by the Cleaning station separated and is preferably after the cleaning point in the direction of movement 15 (Fig. 2) viewed.
  • the variant according to FIG. 3 comprises a helical arrangement of grinding elements 42 along a cylindrical support.
  • Each element is formed as a bristle 45 (see in particular the detail - FIG. 3A).
  • At least the free end portion of each bristle 45 is provided with an abrasive agent to form a grinding area (abrasive body).
  • the entire bristle may e.g. be interspersed with abrasive.
  • the abrasive is e.g. hard particles 46 (abrasive grains, diamond grains or the like) fixed to the bristle 45 by adhesive or a binder or embedded in a matrix.
  • the helical row of elements 42 extends over the entire length of the carrier and therefore over the entire working width.
  • a second row of grinding elements can be arranged in mirror image to the first row.
  • the lifting device remains in the working state until each cover 13 has been "x-times" ground, where "x” is any rational number, preferably in the range 1 to 5, is.
  • a suitable control will be explained in more detail below.
  • the grinding of all lids 13 "x times" is hereinafter referred to as “grinding cycle”.
  • the sander may be manually operated in the sense that it can be manually started up or down, e.g. by start / stop buttons on a control console, which is assigned directly to the device. An operator can thus decide when and for how long the device is put into operation.
  • the device is selectively controlled, preferably by the card control, e.g. according to a deployment concept generally described in EP-B-565486.
  • the flat clothings are ground after processing a given amount of fiber (e.g., tons), and the predetermined amount may be variable depending on the fiber type.
  • the grinding interval can be controlled in time, i. the lifting device 26 can be operated for a predetermined period of time to hold the lifting elements 28 in their working positions, after which they can be lowered back to the ready position.
  • a lid sensor (not shown) is provided at the grinding site, which counts the lid 13 in passing, so that the lifting elements 28 remain in the working positions until all the lid once (or X times) have passed through the grinding point ,
  • the card could, for example, merely have attachment points where a holder of the grinding device can be attached.
  • the device itself could then be carried from card to card and mounted only when needed on a specific card and put into operation.
  • Such a device could have its own drive to rotate the carrier carrying the grinding elements or could merely have coupling to allow temporary connection with the drive of the machine.
  • a portable device could include a lid delivery device. However, this is not absolutely necessary for such a device. Firstly, it is the common practice of card manufacturers to provide and even install cap lifters to enable the grinding of the caps with a conventional grinder roller and, secondly, in growing a portable device, it is possible to determine the immersion depth by adjusting the device holder, i. without having to deliver the covers at all to the brush. It will also be understood that a portable device is more suitable for manual operation, although timers or deck counters could be readily used to control a grinding cycle.
  • a portable device could be designed for use with the card still running, but will normally be used on non-card makers. In the latter case, it is not absolutely necessary to apply the grinder in a specific relation to the lid cleaning, since the covers are cleaned during a "service” in any case, regardless of the cleaning device of the card.
  • FIGS. 5A and 5B are new and each have a free end section 70.
  • Each has two side surfaces 72 made by the side grinding which together form a straight edge 73 which gives a "sharp tip" 74 "forwardly”.
  • FIG. 5C The check marks of Figures 5C and 5D are worn and ground by a device according to EP-A-800 895. They have end portions 75 which differ significantly from the end portions 70. Although the grinder has created new side surfaces 76, which result in an end edge 77. In side view ( Figure 5C), this edge 77 is not straight but curved and viewed from the front ( Figure 5D) it is slender but more rounded than pointed. In any case, a tip 74 is missing (FIG. 5A). It is necessary, as possible, to arrive at the shape of the end parts of Fig. 5a and 5B again.
  • a rotatable support 80 is equipped with abrasive bristles 82 which strip at the free ends of the hook 84 of a flat bar 86.
  • the direction of rotation of the carrier 80 and the direction of movement of the rod 86 are indicated by arrows.
  • the bristles 82 are now brought into contact with the ends of the prongs without substantially penetrating them, they eliminate the curvature of the edge 77 ( Figure 5C) and reestablish a straight edge.
  • a certain contact pressure is required, wherein the bristles 82 must be selected such that they do not penetrate under this pressure between the hooks, but edit the "front sides" of the hook.
  • a clothing carrier 213 is sketched with a set 200.
  • the clothing carrier 213 is a flat bar.
  • the clothing 200 consists of a plurality of clothing elements 210. These may be hooks or in other embodiments also teeth.
  • the clothing carrier 213 slides on a guide 215.
  • the feed device 220 is shown when it is in the standstill position, and the roller 204 with the lateral surfaces 201, 202.
  • the feed device 220 consists in this outlined embodiment of a sliding element 222 which can be moved in guides 227 in the direction of the roller 204.
  • springs 223 are arranged on the sliding element 222.
  • a slide block 224 is attached on the springs 223, a slide block 224 is attached. In the illustrated position of the feed device, the springs 223 are in the pretensioned position. Because the sliding element 222 is in the lowest position, the slide block 224 has no contact with the clothing carrier 213 moved over it.
  • illustration c) it is shown how the clothing carrier 213 is located on a support surface 226 of the sliding block 224.
  • the clothing carrier 213 has been previously moved over ramps 225 onto the support surface 226.
  • the position c) shows the compression of the springs 223 by the load with the clothing carrier 213. It is here on the opposing force, which is applied in the application by the roller 204 is omitted for purposes of illustration.
  • the sliding element 222 is in the position c) in the extended position. This means that the guides 227 are here in maximum delivery position.
  • the actual state of the position of the clothing carrier 213 with the roller 204 arranged is shown at the position d).
  • the grinding elements 201 and 202 press against the clothing 200 or the clothing elements 210.
  • the delivery device is thus in the state of equilibrium, so that on the one hand counteracts the force of the springs 223 against the force corresponding to the contact pressure of the grinding elements 201 and 202, in particular the grinding elements 202. in the essentially, the shorter and stiffer face grinding elements 202 impart resistance to the spring force.
  • the system has the significant advantage that by the spring force and the resistance of the grinding elements 201 and 202, a self-adjustment of the device takes place. While the sliding element 222 only has to be conveyed from one stop position to the other stop position, the spring force ensures that the clothing elements 210 are always pressed against the grinding elements 201 and 202. By a different bias of the springs 223 different forces can be set here, whereby the immersion depth of the clothing elements 210 can be predetermined in the grinding elements 201 and 202.
  • the ground clothing carrier 213 is again arranged outside the engagement of the roller 204 and outside the engagement of the feed device 220 on the guide 215 after passing through the grinding device
  • Fig. 10 shows schematically an assembly of a grinding device SV with (only) one end part of a lid D, wherein the middle part of the grinding device SV has been cut out.
  • the grinding device SV comprises a roller 204, a drive motor 239 and half shells (not specifically indicated) provided with long bristles 201 and short bristles 202.
  • the lid D comprises a flat bar 13 with a garnish 14.
  • the bar 13 is connected at one end by means of an end cap 235 with a belt 236.
  • Compounds suitable for this purpose are shown, for example, in GB-B-870 424, DE-Gbm-7345579 and EP-A-627507.
  • the other end of the flat bar 13 is connected in the same way with a second belt, which is why only one end has to be shown and described.
  • the end head 235 is also provided with a sliding portion 237 which normally slides on a so-called return rail 238 as the lid approaches the grinder, or after the lid of the grinder has left. After actuation of the feed device, the end head 237 of a flat rod in the grinding position is no longer in contact with him associated return rail. Instead, an outer part of the end head slides on the slide block associated with this rod end. (or sliding plate) 224.
  • the grinding device is mounted between two side walls 240 which have been firmly attached to the card frame. Adjusting means (not shown) are provided to assure that the axis of the roller 204 is parallel to the longitudinal axis of the flat bar 13 when the flat bar 13 is resting on the return rails. After the operation of the grinding or feeding device, the longitudinal axis of the raised flat bar should now still be parallel to the longitudinal axis of the roller 204.
  • the feed device in FIG. 10 comprises a carrier part 230 which cooperates with a guide element 234 and a stub axle 236 of an eccentric shaft 237.
  • the shaft 237 itself is rotatably mounted in a wall-mounted bearing 241. Outside the side walls 240 are a rocker arm and a pneumatic cylinder for rotating the eccentric shaft 237.
  • the card control triggers the actuation of the pneumatic cylinder to actuate the feed device.
  • the programming calculates the grinding schedule and the number of grinding cycles.
  • the calculated number of grinding cycles depends on the selected speed of the lid.
  • Distributed over the life of the lid each of them is ground, for example, for 20 minutes. This corresponds to 63 to 163 grinding cycles, depending on the lid speed.
  • the programming starts a grinding cycle.
  • the brush starts. About pneumatic cylinder, the lid are raised by a spring-mounted plate of the device. At the same time the slide is opened to extract the dust, the long Scheifborsten dip into the clothing and ensure the side grinding. The short bristles touch the granite and ensure a sharp working edge.
  • the brush remains active only during a handling of all lids. This includes initiator of the lid monitoring the passing lids. After the end of the cycle, the pneumatic cylinders are relieved, the suction is closed and the motor of the brush is switched off.
  • each flat garnish is preferably ground once, which can normally be ensured simply by counting the passing covers. Problems arise in this context only when the counting is interrupted by a fault (for example, due to a power failure). There are several ways to consider such disturbances.
  • means are provided to identify at least one location on the movable portion of the traveling deck assembly so that the controller, by means of a license plate recognition fee, is able to determine which lids have already been ground during an interrupted cycle. In such a case, the cycle may be completed after the fault has been remedied.
  • Machine is provided with means to determine the current "position" of the traveling deck aggregate compared to a given reference point.
  • the reference point is provided with a sensor which responds to the lid running past it and cooperates with an evaluation to determine the said position of the unit.
  • each cover could be provided with a respective marking (eg with a "barcode"), so that each cover can be recognized as an "individual” by means of a suitable sensor.
  • a respective marking eg with a "barcode”
  • FIG. 11 The illustration in FIG. 11 is greatly simplified since the person skilled in the art is able to work out a practical solution on the basis of the basic principle.
  • lids D1 to D12 there are twelve lids D1 to D12 each shown as a "box".
  • a lid (“D1") is provided with a mark detectable by a sensor S, which is shown in Fig. 25 with a cross in the box D1.
  • the marker may take any recognizable shape, such as a piece of metal that can be magnetically scanned; an additional element which is scanned by means of a proximity sensor; a color mark that can be optically scanned. Non-contact scanning is preferred but is not essential to the principle.
  • the sensor S is preferably located in the vicinity of the grinding device SV and responds to the lid (in the example, D7) currently facing the device SV, even if the feed device is not activated, to deliver the passing cover of the grinding brush for sharpening ,
  • the output signal of the sensor S is supplied to the card control KS and the controller is in communication with the grinding device SV, which in Fig. 10 by the Line is indicated.
  • the card control is provided with a memory (not shown) which contains data relating to the design of the revolving flat unit, in particular with regard to the number of covers in this unit. It is initially assumed that the card is running from a standstill. There will then be no grinding cycle.
  • the cover transport means (not shown) drives the covers along their normal path without delivering them to the sander SV - this condition is shown in Fig. 11 with solid lines.
  • the sensor S responds to each passing lid and generates a corresponding output signal, for example a pulse, which is supplied to the card control KS.
  • the first pulse is generated by the cover D7 because it first passes the sensor S. Because "cover D7" is not recognizable as such, but the controller can not (yet) determine the current "position" of the Wanderdeckefaggregates.
  • the covers D8 to D12 then also run past the sensor S, with each cover triggering a pulse in the evaluation (in the card control KS) via the sensor. Since the covers D8 to D12 are also not marked, the pulses are indistinguishable from one another, which has been represented in the "time diagram" within the box KS in FIG. 11 by simple vertical lines.
  • the marked cover D1 passes the sensor S and generates a signal which differs significantly from the signals of the unlabeled lid.
  • this is schematically represented by the fact that the pulse corresponding to the cover D1 is wider and has a larger amplitude, which is not essential for the principle.
  • the card control KS now "knows” that both the lid D1 passes the sensor S and that the next eleven pulses are assigned to the respective lid D2 to D12, although the latter pulses do not differ from one another.
  • a counter Z indicated schematically within the box KS in FIG. 25
  • the card control KS is therefore now able to determine the aforementioned "position" of the revolving flat unit relative to the sensor S (as a reference point).
  • FIG. 11 may also serve to explain the control of a grinding cycle, for which reason only twelve pulses have been shown in the time diagram.
  • a grinding cycle of the covers D7 is first delivered to the grinder SV (dashed lines) by operation of the feed device (not shown in Fig. 11) and the grinder SV itself is put into operation via the line L one by one to hone.
  • the card control system Due to the continuous monitoring of the position of the revolving flat unit in relation to the sensor S, the card control system "knows" that this grinding cycle was triggered at the cover D7. According to the preferred embodiment, the card control is programmed so that each lid is ground once during a firing cycle. The initiated cycle must therefore continue until the lid D6 has been ground, after which the sander SV should be shut off via the line and the infeed device (not shown) should be returned to its original position.
  • the timing diagram in FIG. 25 represents the "signal image" for such a continuous grinding cycle.
  • the card control KS is provided with storage means SP, which holds both the first lid of a triggered grinding cycle and the "current" (currently processed) cover of the cycle - even in the event of a power failure. If e.g. the cycle shown in FIG. 11 would have to be interrupted after the grinding of only three covers (after the lid D9 has been sanded but before the cover D10 has been sanded), the card control KS can restart the broken cycle once the card has been rewound Take cover D10 and lead to the end with the lid D6 - after the cover recognition system has referenced again, if the memory in the card control KS are not able to save the current position of the revolving flat unit in case of an interruption.
  • a sensor is provided to detect the tag and generate a corresponding signal.
  • a controller provided to evaluate the signal and to control a maintenance program accordingly. This ensures that all (or only selected) covers in the maintenance program are considered (edited). It can be at least one lid, but possibly several lids are marked. If not all lids are marked, a counter can be provided to identify the other lids individually.
  • the maintenance program preferably includes grinding, but may also include other maintenance position, eg, cleaning.
  • the lid detection system could be linked to a quality inspection system that would allow the detection of faults in individual lids.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (6)

  1. Système de détection du couvercle d'un système de couvercle mobile d'une cardeuse, qui présente un repère, un détecteur et une commande, au moins un emplacement de la partie mobile du système étant repéré par un repère, le détecteur étant prévu pour constater la position relative de l'emplacement repéré par rapport à un point de référence prédéterminé, le détecteur répondant de plus au couvercle qui passe devant lui et coopérant avec une évaluation pour déterminer ladite position du système de manière à mettre une commande en mesure de constater quels couvercles ont déjà été entretenus pendant un cycle interrompu, pour que le cycle puisse être amené à sa fin après suppression de la perturbation.
  2. Système de détection de couvercle selon la revendication 1, dans lequel l'emplacement repéré, en particulier au moyen d'un repère coloré ou d'un élément supplémentaire, est repéré de telle sorte que le détecteur puisse le détecter individuellement.
  3. Système de détection de couvercle selon la revendication 2, dans lequel l'élément supplémentaire est un code à barres.
  4. Cardeuse dotée d'un système à couvercle mobile, d'une position d'entretien du couvercle et d'un système de détection de couvercle selon l'une des revendications 1, 2 ou 3.
  5. Cardeuse selon la revendication 4, dans laquelle la position d'entretien est un dispositif de meulage.
  6. Cardeuse selon la revendication 5, dans laquelle la position d'entretien est un système de contrôle de qualité qui permet la détection de défauts dans les couvercles individuels.
EP03004418A 1998-09-09 1999-09-08 Meulage de garnitures Expired - Lifetime EP1329287B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CH184098 1998-09-09
CH184098 1998-09-09
DE19908708 1999-02-26
DE19908708A DE19908708A1 (de) 1998-09-09 1999-02-26 Schärf- bzw. Schleifeinrichtung und Zustelleinrichtung
EP99939896A EP1112144B1 (fr) 1998-09-09 1999-09-08 Affutage des garnitures

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP99939896A Division EP1112144B1 (fr) 1998-09-09 1999-09-08 Affutage des garnitures

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EP1329287A1 EP1329287A1 (fr) 2003-07-23
EP1329287B1 true EP1329287B1 (fr) 2006-12-20

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EP03004417A Expired - Lifetime EP1329286B1 (fr) 1998-09-09 1999-09-08 Meulage de garnitures
EP03004418A Expired - Lifetime EP1329287B1 (fr) 1998-09-09 1999-09-08 Meulage de garnitures

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EP03004417A Expired - Lifetime EP1329286B1 (fr) 1998-09-09 1999-09-08 Meulage de garnitures

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DE (2) DE19908708A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007033511A1 (fr) * 2005-09-22 2007-03-29 Maschinenfabrik Rieter Ag Procede destine a un dispositif d'aiguisage
DE102007011984A1 (de) * 2007-03-09 2008-09-11 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Karde oder Krempel zum Schleifen einer Faserverarbeitungsgarnitur, die auf einer rotierenden Trommel oder einem Deckel angeordnet ist
EP2730370B1 (fr) 2012-11-13 2015-10-14 Siemens Aktiengesellschaft Procédé pour régler un jeu prédeterminé à l'extrémité d'une aube d'une turbomachine
CN110052921A (zh) * 2019-04-28 2019-07-26 江苏普隆磁电有限公司 一种烧结钕铁硼磁材用除锈装置
CN116276503B (zh) * 2022-12-23 2023-10-20 临沂成盛精机制造有限公司 双线轨式高速磨砺机及其控制方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6129614A (en) * 1996-04-12 2000-10-10 Maschinenfabrik Rieter Ag Apparatus for grinding clothing of a textile machine
EP1329288B1 (fr) * 1997-10-01 2005-07-06 Maschinenfabrik Rieter Ag Meulage de garnitures

Also Published As

Publication number Publication date
EP1329287A1 (fr) 2003-07-23
EP1329286B1 (fr) 2007-05-09
DE19908708A1 (de) 2000-03-16
DE59908316D1 (de) 2004-02-19
EP1329286A1 (fr) 2003-07-23

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