EP3618667B1 - Buerstenstopfvorrichtung - Google Patents

Buerstenstopfvorrichtung Download PDF

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Publication number
EP3618667B1
EP3618667B1 EP18721968.8A EP18721968A EP3618667B1 EP 3618667 B1 EP3618667 B1 EP 3618667B1 EP 18721968 A EP18721968 A EP 18721968A EP 3618667 B1 EP3618667 B1 EP 3618667B1
Authority
EP
European Patent Office
Prior art keywords
brush
cam
tufting device
cams
camshaft
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.)
Active
Application number
EP18721968.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3618667A1 (de
Inventor
Enzo Ferrari
Iader Roversi
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.)
Borghi SpA
Original Assignee
Borghi SpA
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Publication date
Application filed by Borghi SpA filed Critical Borghi SpA
Publication of EP3618667A1 publication Critical patent/EP3618667A1/de
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Publication of EP3618667B1 publication Critical patent/EP3618667B1/de
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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/04—Machines for inserting or fixing bristles in bodies
    • A46D3/042—Machines for inserting or fixing bristles in bodies for fixing bristles using an anchor or staple
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/04—Machines for inserting or fixing bristles in bodies

Definitions

  • the invention relates to a brush stuffing device with at least one stuffing tool.
  • Brush stuffing devices are used to push one or more bristles or tufts of bristles into associated openings in a bristle carrier or a magazine.
  • the brush tufting device can be designed so that it works with or without an anchor.
  • an anchor a wire loop or a type of knife
  • the bristle or the tuft of bristles is folded into a U and an anchor (a wire loop or a type of knife) engages the center bar of the U and drives the folded bristle or the folded tuft of bristles into the opening and thereby cuts into the opening wall in order to anchor the bristle or the bristle tuft in the opening.
  • the tamping tool for this tamping process comprises several sub-tools that are responsible for individual work steps. These sub-tools for the individual work steps and their movements, be it the separating movement of a circular arc segment on a bristle magazine, the movement to feed the armature, the movement to form the wire loop, the movement of the so-called bundle hammer, the movement of the tool slide or the movement of the so-called tongue for inserting the armature, to name just a few, are all derived from a rotational movement of one or more motor shafts. For this purpose, cams and subsequent intermediate gears are usually provided.
  • intermediate gear includes, inter alia, coupling gears, lever mimics, crank gears, cam gears, wheel gears such as gear, friction, chain or belt gears, and roller gears, via which a rotary movement is converted into a reciprocating movement.
  • Another option for driving the individual tool parts are individual servo motors that replace the cams.
  • cam drives In the case of cam drives, the cams are usually exposed due to their size. The size of the cams is mainly determined by the stroke. Due to this open construction, there is a relatively higher noise emission and slight contamination from loose bristles and dust. The lubrication of the cam surfaces is relatively problematic because the oil would fly away due to the high speeds. Because of the high moving masses, there are vibrations in the entire system that must be controlled.
  • the DE 297 16 874 U1 describes a brush stuffing device with a cam drive that acts on a lever mechanism.
  • Brush tampers with cam drives are also from the CN 202 233 784 U and CN 104 510 158 B known.
  • the object of the invention is to create a brush tufting device which is characterized by a high number of revolutions, a reduced noise level, low maintenance and a relatively small size. In addition, vibrations should be reduced.
  • a brush stuffing device with at least one stuffing tool, which has several tool parts that can be moved back and forth on tracks, a drive with a rotary motor and a gear unit that converts the rotary movement of the rotary motor into the reciprocating movement of at least one tool part, which the Converts the rotary motion of the motor shaft into a reciprocating motion and has a camshaft, the camshaft having at least one drive pair with two adjacent cams, the two cams extending along a radial plane to the axis of rotation of the camshaft and having a cam surface forming the circumferential surface of the cam, Each cam surface runs radially outward on the one hand and inclined obliquely to the radial plane on the other hand, with a cam follower running along each of the two cam surfaces and the two cam followers sitting on a rocker whose rocker axis lies between the radial planes of the two cams, each cam follower one Causes pivoting of the rocker axis in a pivoting
  • a special type of gear is provided.
  • the cams are designed similar to disks or rollers that extend radially to the camshaft.
  • the circumferential surfaces of these disks or rollers are inclined when viewed from the side.
  • the cam followers ensure that the rocker is always exactly positioned, because both cam followers preferably rest permanently on their assigned cam surfaces.
  • the cam followers are preferably rollers that are mounted on the rocker. These rollers can have a relatively large diameter and thus absorb large forces.
  • the rollers should sit on the same central axis and, in particular, have the same diameter.
  • the imaginary axis of rotation of the rocker axis runs in particular in its own radial plane to the axis of rotation of the cam, ie it does not intersect the radial plane, but lies in the radial plane. This reduces the manufacturing effort for the cam surfaces.
  • the rocker axis more precisely the output shaft formed by it, can be coupled to its own intermediate gear at its two opposite end sections, so that two drives can be derived from one rocker. This creates additional options for deriving multiple movements from a compact, central gear.
  • the stuffing device can be a multiple stuffing device with two or more stuffing tools for the simultaneous stuffing of two or more brushes, each of the two stuffing tools being provided for processing its own brush, so that two or more brushes are produced at the same time.
  • the structural effort and the cost are thus considerably reduced compared to previous brush tufting devices.
  • a drive motor and a gear ensure at least double the output of brushes.
  • all of the camshafts can be coupled with pairs of structurally identical tool parts in order to machine two brushes at the same time.
  • the at least one camshaft is preferably accommodated in a housing from which at least one end of the at least one output shaft, preferably both ends of the output shaft or output shafts, protrude in order to then be coupled to the intermediate gear outside the housing.
  • the housing is preferably a closed housing, so that the transmission is protected from dirt and can have integrated lubrication. This also reduces maintenance. In addition, the noise emission is lower.
  • the lubrication in the housing can be splash lubrication so that the cam surfaces run in an oil bath.
  • an internal or external oil pump can be provided, through which oil is targeted at the cam surfaces is pumped, or a built-in paddle wheel can be provided, which transports oil from the oil sump to predetermined points of the transmission.
  • a tamping tongue, a tool slide, a bundle hammer, a loop former and / or a bundle separator, which represent examples of partial tools, can each be driven by their own pair of drives.
  • the two cams of a drive pair can also be stabilized to one another by an intermediate wall, in which case even the intermediate wall can merge into the two cams in such a way that optionally even the two cam surfaces merge into the intermediate wall without a shoulder.
  • the individual cam surfaces are defined by the track of the cam follower.
  • FIG. 1 shows a brush tufting device with a tamping tool 8 with several sub-tools.
  • the stuffing device comprises a drum 10 with several holders for bristle carriers 12, a bristle magazine 14, a so-called bundle remover 16 as a part tool and a tongue 18 for stuffing as a further part tool.
  • a feed device 19 also a tool part
  • Anchor 20 for so-called Anchor 20
  • Anchor 20 for example in the form of a wire loop or a metal plate (also called a knife) is present.
  • Bristle carriers 12 for example small plates with openings, which are later part of the finished brush, or bristle carriers in the form of a complete brush body as in FIG Figure 1 shown, stuffed.
  • the drum 10 is designed as a rotating holding tool in which a plurality of bristle carriers 12 are accommodated on a carrier 26 which is rotatable about an axis 24 and are fed to and removed from the carrier 26 at certain positions and stuffed in one position.
  • the bristle carrier is moved in two axes by moving the carrier 26, so that the opening to be tamped subsequently is always opposite the next, brought up tuft of bristles.
  • the bristle magazine 14 comprises a bearing with mechanically pretensioned bristles 28 standing next to one another.
  • the bundle remover 16 which can be pivoted about a vertical axis 30 and which comprises a plate-shaped circular arc segment, moves along the magazine 14 with the bristles 28 and removes a bundle by the bundle remover 16 has a notch 32 on its outer edge moving along, into which a tuft of bristles is pressed.
  • the stuffing tool itself comprises a displaceable slide 34 (which represents a part tool) with a tip 36 which is positioned between a bundle transfer position and an in Figure 1 is moved back and forth. This movement is shown by the double arrow. The movement can take place along a linear axis or a circular arc segment.
  • the tip 36 contacts the bristle carrier 12 or remains close to its surface.
  • the tip 36 In the bundle transfer position, the tip 36 is on the dash-dotted line 44.
  • the stroke of the tip 36 is usually in length adapted to the bristle material. With toothbrushes this stroke would be up to 20 mm, with brooms much more (e.g. 100 mm).
  • a slot-like guide is provided in the slide 34, along which the tongue 18 is moved back and forth.
  • a tuft of bristles is also supplied in such a way that, as is known in the prior art, the tufts are folded and the anchor 20 comes to rest at the lower end of the "U" -shaped folded tuft of bristles.
  • the tongue 18 can then push the unit of the folded tuft of bristles and anchor 20 towards the tip 36 and finally push it into the corresponding opening.
  • the individual work steps are carried out using so-called partial tools.
  • All movements are extremely fast back and forth movements that have to be precisely coordinated with one another, sometimes with more than 1000 cycles per minute. This coordination of the individual movements can take place through a mechanical coupling of the individual moving parts, as is described below.
  • Figure 2 the brush tufting device with drive is shown.
  • the individual tool parts can be designed identically for the upper and lower tamping tools 50, 52, so that two tool sets result (each for the top and bottom).
  • the ones already related to Figure 1 illustrated and described parts keep their reference numerals.
  • Some parts in Figure 1 which is intended as a schematic overview, are shown in Figure 2 no longer shown. In particular, the parts of the drive in Figure 2 shown, but not in Figure 1 .
  • the drive for all movements of the individual tool parts which can be moved back and forth, includes a rotary motor 54 and a gear 56 driven thereby with an outer housing 58 which is closed.
  • a plurality of output shafts 60 to 68 emerge from the outer housing 58, namely with their two opposite ends.
  • the upper ends that are in the Figure 2 are provided with the reference numerals are provided for driving the numerous tool parts of the upper stuffing tool 50 and the opposite lower ends of the output shafts 60 to 68 for driving the tool parts of the lower stuffing tool 52.
  • the output shafts 60 to 68 make a rotary movement, not a circumferential rotary movement, but a rotary movement over angles ⁇ 360 °, whereby they are alternately moved back and forth clockwise and counterclockwise, as shown in FIG Figures 3 and 4 will be explained below.
  • Each output shaft 60 to 68 drives its own intermediate gear, here in the form of a lever mechanism. This is explained with reference to the output shaft 60.
  • the output shaft 60 drives the lever mechanism with a first lever 70 and a second lever 72 pivotably attached to it.
  • the lever 72 is in turn coupled directly or indirectly to the tongue 18.
  • the output shaft 60 is therefore responsible for the back and forth movement of the tongue 18 and the corresponding lever mechanism converts the constantly changing rotary movement of the output shaft 60 into an essentially linear or web-shaped back and forth movement of the tongue 18.
  • the output shaft 62 is responsible for moving the slide 34.
  • a lever mechanism 76 is provided which translates the rotary movement of the output shaft 64 into a back and forth movement.
  • the output shaft 64 is responsible for the so-called bundle hammer 77.
  • the corresponding lever mimic 78 is in Figure 2 indicated.
  • the bundle hammer 77 is used to knock an excessively long tuft of bristles out of the tip 34 when the total stroke of the tip 34 is so short that the bristle tuft already plugged into the opening in the bristle carrier 12 is still partially seated in the tip 34 in the retracted position.
  • the output shaft 66 is a drive for forming the loops of the armature, as shown in FIG Figure 5 will be explained later.
  • the output shaft 68 is provided for moving the bundle remover 16. If the output shaft 68 coincides exactly with the axis 30, no translations or lever mimics are necessary here.
  • the transmission 56 is shown in its interior.
  • the rotary motor 54 is coupled to a camshaft 80 from which all movements for the output shafts 60 to 68 are picked up.
  • cams 82 to 100 are provided on the camshaft 80 which extend in an assigned radial plane R to the axis of rotation A of the camshaft 80.
  • R is the plane of a cam 82 to 100, which runs through it centrally based on the thickness of the cam.
  • Each cam 82 to 100 has a circumferential surface, hereinafter referred to as cam surface 102, 104 (to improve clarity, only the cam surfaces 102, 104 are provided with reference numerals).
  • the cam surfaces 102, 104 extend predominantly at an incline to the radial plane R, but there are also sections on the circumference that run parallel to the axis A, which can be seen on the cams 94, 96 using the sections 106, 108. However, these sections are only transition sections between sections of the cam surface that run at an angle to the radial plane.
  • the cam surface 102, 104 has each cam 82-100, based on FIG Figure 3 , a section inclined to the left and a subsequent section inclined to the right and, in between, the transition sections parallel to the axis A corresponding to the sections 106, 108.
  • the rocker 114 has a rocker axis with an imaginary, central one Axis of rotation 116, which lies between the radial planes R of a drive pair of cams.
  • the rocker axis also forms the output shaft 60.
  • the other output shafts 62 to 68 are correspondingly the rocker axes of the rockers 114 provided there.
  • bearing pieces 118 are attached to the rocker axles or, in other words, the output shafts 60 to 68, so that the fastening and mounting of the rollers 110 and 112 on them is simplified and made possible.
  • rollers 110, 112 also have identical diameters and at the same time rest on the cam surfaces 102, 104 of their respective cams 82, 84.
  • cam surfaces 102, 104 lie in each axial section through the axis A on a straight line G.
  • these straight lines are G in Figure 3 drawn.
  • This alignment of the cam surfaces 102, 104 and cam surface sections enables the respective rocker 114 to be free of play while its rollers 110, 112 roll on the cam surfaces.
  • camshaft 80 When the camshaft 80 rotates, the cams revolve with their sections that are unequally spaced from the axis A.
  • the cams are arranged in such a way and have such dimensions and eccentricities for each drive pair that the rollers 110, 112 are in permanent contact with the respective cam surfaces 102, 104.
  • the dimensions of the cams must also be chosen so that the rocker 114 with its axis of rotation 116 does not have to be at different distances from the axis A, on the one hand not to be pushed outwards and on the other hand to be permanently in contact with the cam surfaces via the rollers 110, 112 102, 104 available.
  • rollers 110, 112 run exclusively on the circumferential surfaces (cam surfaces) and not, for example, on the side surfaces of the cams, as can be the case with globoidal gears. These also have a helical cam shape, whereas the cam shape in the invention is disk-shaped or roller-shaped, with inclined peripheral surfaces.
  • the housing 58 which is closed to the outside, there is an oil lubrication, either with a pump or via guide vanes, scrapers or the like.
  • the embodiment according to Figure 4 corresponds functionally to the embodiment according to Figure 3 .
  • the two cams 82, 84 are integrally connected to an intermediate wall 120.
  • the partition 120 continues the cam surfaces 102, 104 of the cams 82, 84 without a step, so that the impression of only one cam is created.
  • the partition 120 has no functional significance for the output shaft.
  • the cams 82, 84 are the portions of the "entire" cam on which the rollers 110, 112 roll.
  • FIG. 5 a) to d) a non-restrictive example is shown how anchors 20, when it comes to wire loops, are fed and deformed.
  • the tongue 18 is in the front position.
  • the armature 20, here in the form of a straight piece of wire, is then supplied laterally via a back and forth movement which can also be derived from the drive.
  • Reference number 140 denotes a bent part and reference number 180 denotes a deformation pin.
  • the bending part 140 is then pushed forward in the direction of the arrow (this movement can or is derived from the drive).
  • the armature 20, here the piece of wire, is bent into a U-shape due to the shape of the front end of the bending part 140 and a corresponding complementary shape of the deformation pin 180 (see FIG Figure 5 b) ).
  • the tongue 18 is then retracted further until it is withdrawn under the anchor 20, so that a scraper 130, which is indicated by arrows in FIG Figure 5 c) is symbolized, presses the armature 20 down into the plane of the tongue, so that then, when the tongue 18 is advanced, it can push the armature 20 in front of it and fold a bundle 150 of a tuft of bristles and take it along.
  • the movement of all these sub-tools can also be picked up by the drive.
  • the two individual stuffing tools 50, 52 can be equipped with structurally identical or identical lever mimics, so that the manufacture of the brush stuffing device is very much simplified. In addition, the device is extremely compact and runs smoothly.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Brushes (AREA)
EP18721968.8A 2017-05-02 2018-04-18 Buerstenstopfvorrichtung Active EP3618667B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017109365.6A DE102017109365B3 (de) 2017-05-02 2017-05-02 Bürstenstopfvorrichtung
PCT/EP2018/059947 WO2018202427A1 (de) 2017-05-02 2018-04-18 Buerstenstopfvorrichtung

Publications (2)

Publication Number Publication Date
EP3618667A1 EP3618667A1 (de) 2020-03-11
EP3618667B1 true EP3618667B1 (de) 2021-02-24

Family

ID=62111024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18721968.8A Active EP3618667B1 (de) 2017-05-02 2018-04-18 Buerstenstopfvorrichtung

Country Status (7)

Country Link
EP (1) EP3618667B1 (pt)
CN (1) CN110636777B (pt)
BR (1) BR112019022846A2 (pt)
DE (1) DE102017109365B3 (pt)
ES (1) ES2868143T3 (pt)
TW (1) TWI759474B (pt)
WO (1) WO2018202427A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019125692A1 (de) * 2019-09-24 2021-03-25 Borghi S.P.A. Borstenmagazin für eine Bürstenstopfmaschine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1145139B (de) 1960-05-13 1963-03-14 Herbert Schmidt Automatische Buerstenfertigungsmaschine
DE1230394B (de) 1965-06-02 1966-12-15 Zahoransky Anton Fa Schaltvorrichtung zum Verstellen von Buersten-koerpertraegern an Buerstenherstellungsmaschinen
DE29716874U1 (de) * 1997-09-19 1999-01-28 G.B. Boucherie N.V., Izegem Antrieb für Stopfwerkzeug einer Bürstenherstellungsmaschine
JP4715762B2 (ja) * 2007-02-06 2011-07-06 マツダ株式会社 エンジンの可変動弁装置
IT1395946B1 (it) * 2009-10-15 2012-11-02 Borghi S P A Testa di punzonatura per un apparato per la produzione di spazzole o scope con punzone a corsa variabile
CN202233784U (zh) * 2011-08-31 2012-05-30 扬州市海星数控制刷设备有限公司 一种立式扁丝机
CN202354734U (zh) * 2011-11-28 2012-08-01 扬州市海星数控制刷设备有限公司 一种植毛机
BE1023541B1 (de) * 2014-06-05 2017-04-28 Bart Gerard Boucherie Bürstenstopfvorrichtung
BE1022749B1 (de) * 2014-12-22 2016-08-29 Gb Boucherie Nv Bürsten-Stopfmaschine
CN104510158B (zh) * 2014-12-26 2016-08-17 台州市路桥鸿跃机械厂(普通合伙) 植毛机机头以及植毛机
CN205885024U (zh) * 2016-07-04 2017-01-18 台州市路桥鸿跃机械厂(普通合伙) 植毛机及机头驱动机构

Also Published As

Publication number Publication date
CN110636777B (zh) 2021-06-08
WO2018202427A1 (de) 2018-11-08
TW201842868A (zh) 2018-12-16
ES2868143T3 (es) 2021-10-21
BR112019022846A2 (pt) 2020-05-26
CN110636777A (zh) 2019-12-31
EP3618667A1 (de) 2020-03-11
DE102017109365B3 (de) 2018-08-16
TWI759474B (zh) 2022-04-01

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