Classifications

• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
  • D01G19/00—Combing machines
  • D01G19/06—Details
  • D01G19/28—Air draught or like pneumatic arrangements
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
  • D01G19/00—Combing machines
  • D01G19/06—Details
  • D01G19/14—Drawing-off and delivery apparatus
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
  • D01G19/00—Combing machines
  • D01G19/06—Details
  • D01G19/22—Arrangements for removing, or disposing of, noil or waste
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
  • D01G19/00—Combing machines
  • D01G19/06—Details
  • D01G19/24—Framework; Casings; Coverings

Definitions

• the invention relates to a cleaning device for a Kämmgarituren existing Kämmsegment one, rotatably mounted on a shaft round comb of a comber, which combs a, from a nip of a nipper aggregate outstanding tuft, arranged with at least one, in the region of the outer circle of the combing segment of the circular comb Cleaning element for cleaning the combings of the combing segment during a comb play.
• the combing machines customary today usually have eight combing heads arranged next to one another.
• the, in the form of Wattebahnen the respective nipper unit of each combing head supplied fiber mass is clamped by the nipper unit during the combing process.
• the end of the fiber mass which projects out of the respective nipper unit is usually called a fiber tuft and the tuft is grasped and combed out by a combing member of a combing segment of a circular comb
• the disintegrated components are transported downwards via the combing assembly, where they reach an area in which bristles of a brush roll enter the enveloping circle
• the direction of rotation of the brush roller is in the above-mentioned range usually the same as the direction of rotation of the circular comb, wherein the peripheral speed of the brush roller is greater than that of the circular comb Components were stripped and discharged under the action of a suction to a suction channel.
• the suction channel connected to a vacuum source is connected to a housing in which the brush roller is rotatably mounted.
• This housing at least partially encloses also the above the brush roller mounted combing cylinder.
• the applied negative pressure acts into the area above the circular comb and supports the retraction of the tuft in the combing during the combing process.
• a suction device is provided within the circular comb, which has radially outwardly guided suction openings.
• suction openings There are several suction openings provided, in which the clothing of the circular comb is interrupted.
• the suction openings which rotate with the rotation of the circular comb, exert a partial cleaning effect only there on the clothing, which they are directly assigned.
• the other clothing elements that are outside the effective range of the suction openings are not detected by the, applied to the suction vacuum and thus not cleaned of deposits.
• the device shown here is only intended for the removal of loose contaminants from the tuft presented by the tongs. For the removal (cleaning) of combed during combing and settled between the Kämmgarnur components, the embodiment described above is not suitable.
• the round comb (or round combs) of a combing machine is one of the essential components, which is responsible for the quality of the combing result. Therefore, it is necessary to maintain the full function, or the operation of the circular comb over as long a period as possible.
• the invention is therefore based on the object to propose a cleaning device for the entire combing a combing segment of a circular comb, which ensures optimum cleaning of the combing even at high Kammspiellibrary, and thus a constant Kämm suction of, or the circular combs over a long period guaranteed.
• At least one further (at least additionally a second) cleaning element is arranged in the region of the enveloping circle of the combing segment of the circular comb.
• cleaning element which also acts as a first cleaning element, from the periphery of the enveloping circle of Kämmsegmentes, acting on the clothing elements cleaning, the cleaning effect is significantly improved.
• the cleaning elements arranged one after the other in the region of the enveloping circle of the combing segment complement one another in the cleaning action. Due to the step-by-step cleaning process, the cleaning work is split over two cleaning elements, thus optimizing the cleaning effect.
• a cleaning element is a mechanical cleaning element and the further cleaning element is a pneumatic cleaning element, wherein - seen in the direction of rotation of the circular comb - the pneumatic cleaning element is connected downstream of the mechanical cleaning element.
• both cleaning levels can be coordinated with each other.
• the mechanical cleaning element consists of a, at a radial distance to the shaft of the circular comb rotatably mounted cleaning brush, which has cleaning elements whose outer circle intersects with the outer circle of Kämmsegmentes and the further cleaning element consists of a, connected to a vacuum source suction whose suction opening extends at a radial distance and over a partial region of the enveloping circle of the combing segment.
• the cleaning brush is surrounded by a housing which is connected to a further vacuum source. This ensures that the, stripped by the bristles of the brush roller from Kämmsegment material is sucked off and disposed of by the bristles on the, applied to the housing vacuum and connected to the housing channel of the bristles. That this material is discharged via the channel to a central collection point.
• the cleaning brush and at least portions of the circular comb is surrounded by a housing which is connected to the further vacuum source.
• the part of the circular comb is detected by the negative pressure, welpher directly adjacent to the outer circle of Kämmgarnur.
• material components eg fiber fly
• the negative pressure applied in the housing assists in pulling the tuft into the area of the furrows.
• the rear side wall of the suction channel which faces the upstream brush roller, extends in the direction of a tangent to the enveloping circle of the Kämmgarnitururen at an acute angle ⁇ to the suction opening of the suction channel.
• the suction opening can form an approximately flat surface, which is opposite to the enveloping circle of the Kämmgarnitur in the distance. It is also conceivable that the suction opening slightly curved to the contour of the outer circle of the Kämmgarnituren runs at a small distance. This distance between the suction opening and the enveloping circle of the combing set can be between 0.5 and 5 mm.
• the sensor is connected to a central control unit.
• the speed of the brush roller can be controlled via the control unit.
• Climb z For example, the amount of extracted material in the suction continuously, so this may be an indication that the cleaning work of the brush roller steadily decreases. This can be z. B. caused by wear of the bristles, whereby the radial feed of the brush roller to the axis of the circular comb is required. This can be done manually (with the machine off) or automatically during operation via an actuator.
• the rotational speed of the brush roller can also be increased to increase the cleaning effect, provided that the wear of the bristles is not the cause of the deterioration of the cleaning effect. That is, with the sensor in the suction, the cleaning effect of the upstream brush roller can be monitored.
• the shaft of the circular comb and the shaft of the cleaning brush are connected via drive means with a common drive motor and at least one gear stage between the common drive motor and the shaft of the cleaning brush and / or the shaft of the circular comb is provided.
• a common drive motor it is possible to make do only with a common drive motor, the different speed ratios over the or the intermediate gear stages are achieved.
• a compact design is achieved when the suction of the further cleaning element following the integrated vacuum in the suction channel opens into a common, connected to the other vacuum source suction channel which is connected to the housing which surrounds the cleaning brush at least partially.
• the material discharged from two cleaning points is combined to form a common disposal line, which transfers it to a central collection point.
• the cleaning device according to the invention can also be used for a circular comb on which in addition to the combing segment a tear-off segment (Heilmann design) is attached.
• the invention relates to a combing machine with at least one cleaning device.
• a comber knows eight combing heads, each with a combing cylinder and an associated brush roller, each combing cylinder is associated with an additional suction channel.
• the additional channels can be merged into a common channel, to which a common first vacuum source is attached.
• 1 is a schematic side view of a known combing a
• FIG. 2 shows a schematic side view of a combing head with an additional channel according to the invention
• Figure 3 is a schematic partial view of Figure 3 with another drive variant
• Figure 4 is a schematic side view X of Figure 3
• FIG. 1 shows a known embodiment of a combing head (of several) of a combing machine with a nipper unit 1 (called “pincer” for short), which is mounted in a pivotable manner via the crank arms 2, 3.
• a nipper unit 1 called "pincer” for short
• two crank arms 2 each side of a circular comb 4 (also called Kämmzylinder) pivotally mounted on the circular comb shaft 5.
• the other end of the pivot arms 2 is rotatably mounted on axes 13 on a clamp frame 8.
• the rear pivot arm 3 (there may also be two) is rotatably mounted on a gun shaft 10.
• the opposite free end of the pivot arm 3 is rotatably connected via a shaft 9 with the clamp frame 8.
• the circular comb 4 has on a part of its circumference a comb segment 7, which, as indicated schematically, is provided with Kämmgarnituren 6.
• the Kämmgarnituren 6 can consist of individually lined up next to each other clothing strips S.
• the sections may be provided with different numbers of teeth.
• the front clothing sections A1 bars
• the lane width of the alleys G (FIG. 4) decreases rearwardly between the individual clothing strips S of the clothing sections A1-A4.
• a round comb can be provided with a tear-off segment additionally mounted on its circumference, which forms a nip in the tear-off with a tear-off roller deliverable to the tear-off segment.
• a tear-off segment additionally mounted on its circumference, which forms a nip in the tear-off with a tear-off roller deliverable to the tear-off segment.
• Such a design Heilmann system
• the lower tong plate is fixedly mounted while the upper tong plate performs a pivotal movement to form a nip with the lower tong plate for the fiber material.
• a plurality of combing heads are arranged side by side on a combing machine, each combing head having a pair of pliers 1.
• each combing head having a pair of pliers 1.
• the inventive attachment of an additional suction device is shown and described only on a single combing head.
• the pliers 1 consists in the present example of one, with the pliers frame 8 fixedly connected lower pliers plate 12 and an upper pliers plate 14 (partially also called pliers blade), which is attached to two pivot arms 15, 15 '.
• pivoting arms are pivotally mounted on the tong frame 8 via a pivot axis 16.
• the pivot arms 15, 15 ' are each connected to a spring leg 18, which are mounted via an axis 20 in the machine frame.
• a first pair of rollers 24 is provided behind the forceps 1.
• This pair of rollers 24 is also referred to in practice as a "pair of unwinding rollers or a pair of detaching cylinders" and forms a tear-off clamping line K.
• the first pair of rollers 24 is followed by a second pair of rollers 25 in which the produced soldering point is still solidified.
• Schematically indicated is a fixed comb 11, which is fastened to the clamp frame 8 via means not shown.
• a feed roller 27 is rotatably mounted, which is connected via a drive not shown in detail and performs a discontinuous rotational movement in order to transport the supplied cotton W in sections.
• the feed cylinder 27 has a shaft 28, via which it is rotatably mounted at both ends via bearings not shown in detail in bearing receptacles of the nipper frame.
• the drive of the feed roller 27 may, for. B. via a known jack drive, which is controlled by the movement of the upper tong plate 14.
• the feed roller 27 conveys the fibrous material W discontinuously in the direction of the tong lip 30 of the lower tong plate 12.
• the combing takes place with the pliers 1 closed, in a rear position of the pliers, as shown in the embodiments of FIGS. 1 and 2.
• the end E of the fiber tuft FB protruding from the clamping point KS of the tongs 1 passes into the region of the Kämmgarnituren 6 of the Kämmsegments 7 of rotating in the direction of rotation D circular comb 4 and is combed out.
• the clamping force for holding the fiber W during the combing process is generated by the schematically illustrated strut 18, which is pivotally mounted on the machine frame MS via the axis 20.
• the pliers 1 is pivoted into a foremost position (not shown) and simultaneously opened.
• the combed end E of the fiber tuft FB is placed on the end E1 of a previously partially transported back fiber web V and then transferred by the transport movement of the fiber web to the nip K of the first pair of rollers 24.
• the tuft FB enters the area of the needles of a fixed comb 11 which is fixed to the forceps frame 8.
• the fibers of the tuft FB which get into the terminal point K pulled out of the tuft and soldered to the end of the web V.
• the tuft is pulled through the fixed comb 11, the nonwoven fabric is removed via the second subsequent roller pair 25 on a nonwoven table and then combined via known devices into a sliver and further transported.
• Auskmmvorgang components short fibers, Nissen, dirt, etc.
• the combed out during Auskmmvorgang components are stored in large part between the lanes of Kämmgarnitur and are transported down, where they reach the area of a brush roller 44.
• the brush roller 44 is rotatably mounted below the circular comb 4 via a shaft 46 in a housing 50, in which the circular comb 4 is located.
• the housing is completely closed and open towards the pliers 1.
• the brush roller 44 is connected to a motor MB via the drive element 33 and has bristles 45, with which they at an immersion point ET with its outer circle HB in the outer circle HK of the circular comb 4 and thus in the alleys G of the clothing strips S Kämmgarnur des Combing Kämmsegmentes 7 ( Figure 4) and remove the combed out components located therein.
• the direction of rotation B of the brush roller is aligned in the region of the tangent to the circular comb in the direction of rotation D of the circular comb 4.
• a suction channel 33 is mounted, which is in communication with the vacuum source P.
• the volume of air discharged through the suction air flow SA is returned to the housing 50 through the openings of the surrounding air of the comber located above the housing 50.
• the motor MB is controlled by a control unit ST, with which it is connected via the path 37. Furthermore, the control unit St is connected via a path 38 a further motor M (main motor) in connection via which further units of the comber are driven via corresponding drive connections and gear units. So z. B. the motor M via the drive member 40 with a transmission G1 (or transmission unit) in conjunction, which drives a tongs shaft 10 via the drive element 41.
• the transmission unit may be, for example, a slider-crank mechanism.
• the motor M is connected via the drive element 42 to a transmission G2, which drives the circular comb shaft 5 via the drive element 43. The portion of the combed components, which does not settle in the lanes of Kämmsegmente is sucked under the action of the suction flow SA directly inside the housing 50 down and transferred to the opening 51.
• an additional cleaning element in the form of an additional suction channel 60 is proposed, which is shown in the embodiment of FIG.
• the additional suction channel 60 is - seen in the direction of rotation D of the circular comb 4 - downstream of the brush roller 44 and located in the area between the immersion point ET of the brush roller 44 in the Hüll Vietnamese HK the Kämmgarnitur 6 and the clamping point KS of the pliers 1.
• the suction channel 60 opens into a suction pipe 61 communicating with another negative pressure source P1.
• the extracted under the action of the vacuum source P1 components are transferred via a channel 63 in the channel 35, via which they are supplied under the action of the suction source P of a central collection point, not shown.
• the opening 65 of the suction channel 60 projecting toward the circular comb 4 has a distance a of 0.5 to 5 mm from the enveloping circle HK of the combing sets 6 of the circular comb 4.
• the opening 65 can run in a plane which has a minimum distance a from the enveloping circle HK. It is also possible, as shown in Figure 2, that the opening 65 extends arcuately in accordance with the contour of the enveloping circle HK and has a constant distance a (0.5 to 5 mm) to the enveloping circle HK.
• X Figure 3 in Figure 4 refer, extends - seen in the axial direction of the circular comb shaft 5 - the dashed line shown opening 65 of the suction channel 60 with the width c over the entire width b of the combing segment 7, which the Kämmgarnuren 6 has. This ensures that the entire circumferential surface of the Kämmgarnitur 7, which is guided past the suction channel 60, is detected by the suction air flow SL. So that a collision between the suction channel 60 and the tips of the clothing teeth of the combing set is reliably avoided, the circular comb 4 can be provided with lateral guide disks (not shown) on which the suction channel is supported.
• the rear side wall 68 of the suction channel 60 is at an acute angle ⁇ to the opening 65 of the suction channel 60 is arranged. This results in a suction air flow SL in the direction of rotation D of the circular comb 4, which is aligned approximately tangentially to the base body GK of the circular comb. This suction air flow SL is aligned approximately vertically to the front tooth flanks, not shown, of the teeth of the combing set.
• the small distance between the suction opening 65 and the enveloping circle HK of the Kämmgarnuren ensures that the air flow generated by the suction channel 60 is substantially limited to the region of the suction opening 65 and no uncontrolled air currents are generated within the housing 50, which the Combing and soldering process could negatively influence.
• a triangular shielding element 22 is mounted within the housing 50, which extends parallel to the circular comb shaft 5 over the entire width of the housing.
• a sensor 55 is attached in the present embodiment, which is connected via the line 56 to the control unit ST.
• the mass per unit time is detected, which is sucked off through the suction channel 60.
• This value is transmitted to the control unit ST via the line 56.
• certain control processes can be triggered in the control unit ST in comparison with a desired value. Increases e.g. the sucked amount steadily, so this is an indication of the decreasing cleaning effect of the upstream brush roller. This can e.g. caused by the wear of the bristles 45 of the brush roller 44. That The penetration depth of the bristles into the lanes between the Kämmgarnituren 6 has decreased by the wear-related shortening of the bristle lengths.
• the distance between the circular comb shaft 5 and the shaft 46 of the brush roller is reduced manually or automatically via an adjusting device. That via the control unit ST can e.g. an acoustic or optical signal for an operator to be generated, which then makes this adjustment manually when the machine is stationary. Furthermore, on the basis of the generated control signal, an adjusting device can also be controlled directly, which carries out the adjustment automatically without manual intervention and during operation. Since such adjusting devices for brush rollers are already well known, this adjustment was indicated schematically by a double arrow in the region of the shaft 46.
• the cleaning work of the brush roller is supported. That is, the components not yet removed from the brush roller, which are still within the combing set, are detected and removed by the suction air flow of the subsequent suction channel.
• the combing effect of the combing set can be kept constant over a long period of time. That means the cleaning effect becomes so increased overall, whereby an increase in Kammspieliere is possible without reducing the combing effect.
• FIG 3 a simplified embodiment of the drive is shown.
• the circular comb 4 and the brush roller 44 are driven by a single motor M1.
• the motor M1 which is controlled by the control unit ST via the line 48, is connected via the drive element 49 to a transmission G2.
• the transmission G2 is on the one hand via the drive element 43 with the circular comb shaft 5 and on the other hand via the drive element 53 with a further gear G3 in combination.
• the gear G3 is in drive connection with the shaft 46 of the brush roller 44.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Environmental & Geological Engineering (AREA)
• Preliminary Treatment Of Fibers (AREA)

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Cited By (1)

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Citations (5)

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• 2013
  • 2013-08-06 CH CH13572013A patent/CH708416A2/de not_active Application Discontinuation
• 2014
  • 2014-07-08 WO PCT/IB2014/001287 patent/WO2015019139A1/de active Application Filing
  • 2014-07-08 JP JP2016532746A patent/JP2016529413A/ja not_active Withdrawn
  • 2014-07-08 EP EP14747129.6A patent/EP3030702B1/de active Active
  • 2014-07-08 CN CN201480044691.3A patent/CN105431580B/zh active Active

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