Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H23/00—Registering, tensioning, smoothing or guiding webs
  • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
  • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
  • B65H23/182—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H23/00—Registering, tensioning, smoothing or guiding webs
  • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
  • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
  • B65H23/195—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2402/00—Constructional details of the handling apparatus
  • B65H2402/50—Machine elements
  • B65H2402/53—Guideways
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2402/00—Constructional details of the handling apparatus
  • B65H2402/50—Machine elements
  • B65H2402/54—Springs, e.g. helical or leaf springs

Definitions

• the present invention relates to a constructive system regarding a roller device for unwinding/winding and for tensioning of a flexible tape.
• the object of the present invention is to solve the above drawbacks.
• _a tubular roller wherein said tubular roller defines an outer surface on which is wound the flexible tape and an inner surface, wherein said tubular roller extends axially with respect to a first axis; _one or more first guide means, wherein said first guide means are fixed in the vicinity of the inner surface of said tubular roller, wherein said first guide means extend axially and configure axial sliding tracks, wherein said axial sliding tracks extend parallel with respect to said first axis; _a central support pin, wherein said central support pin configures a second axis which extends coaxially with respect to the first axis, wherein said central support pin comprises at least a threaded portion having an axial extension; _helicoidal coupling means, wherein said mechanical helicoidal coupling means are positioned around said thread
• the constructive system of the present invention mainly but not exclusively, comprises: a tubular roller 15, one or more first guide means 9, a support central pin 7, mechanical helicoidal coupling means 11 , a first tubular support 14, one or more second guide means 13, a second tubular support 17, anti-friction means 16, a third tubular support 19, and elastic means 18.
• tubular roller 15 With reference to said tubular roller 15, it comprises an outer surface 15a on which is wound the flexible tape and an inner surface 15b, and said tubular roller 15 extends axially with respect to a first axis 15x.
• first guide means 9 With reference to said one or more first guide means 9, they are fixed in the vicinity of the inner surface 15b of said tubular roller 15, they extend axially, and substantially they constitute an axial sliding tracks, wherein said axial sliding tracks extend parallel with respect to said first axis 15x.
• central support pin 7 With reference to said central support pin 7, it configures a second axis 7x that extends coaxially with respect to said first axis 15x, and said central support pin 7 comprises at least a threaded portion 7a having a determined axial extension.
• mechanical helicoidal coupling means 11 preferably comprise a support nut (ball bushing) 11 of a recirculating ball system, or an antifriction support-nut female screw 11 of the type "Delrin" with low friction coefficient, positioned around said threaded portion 7a, in order to form a mechanical helicoidal coupling kinematic screw pair between said support-nut (ball bushing) 1 1 or said support-nut antifriction female screw 1 1 and said threaded portion 7a.
• first tubular support 14 With reference to said first tubular support 14, it extends axially and configures a first axial end portion 14sx and a second axial end portion 14dx, as well as a third axis 14x positioned coaxially with respect to said first axis 15x.
• said first tubular support 14 is disposed around said central support pin 7 by means of an axially slidable and rotatable coupling, and the first axial end portion 14sx of said first tubular support 14 is coupled in a fixed manner with the support nut (ball bushing) 1 1 or with said antifriction support-nut female screw 1 1.
• first tubular support 17 With reference to said second tubular support 17, it extends axially and configures a first axial end portion 17sx and a second axial end portion 17dx , as well as a third axis 17x positioned coaxially with respect to said first axis 15x.
• said second tubular support 17 is positioned around said central support pin 7 by means of an axially sliding coupling, and furthermore it is positioned axially to the side with respect to said second axial end portion 14dx of said first tubular support 14.
• said anti-friction means 16 are axially interposed between said first tubular support 14 and said second tubular support 17, and they are functionally able to allow and facilitate the relative rotation motion between said first tubular support 14 and said second tubular support 17 when said two tubular supports 14 and 17 are pressed axially against one another.
• first axial end portion 19sx and a second axial end portion 19dx extends axially and configures a fourth axis 19x positioned coaxially with respect to said first axis 15x.
• said third tubular support 19 is positioned around said central support pin 7 by means of a fixed coupling, i.e. not axially sliding, and positioned axially to the side and axially spaced with respect to said second axial end portion 17dx of said second tubular support 17.
• said first guide means 9 preferably have a cross section in the shape of a "T ", with the free end of the stem of said "T “ fixed against the inner surface 15b of said tubular roller 15, and with the horizontal portion of said "T” projecting cantilevered towards the interior of said tubular roller 15.
• said first guide means 9 have a cross section in the form of a double "T", with a horizontal portion of said double “T “ fixed against the inner surface 15b of said tubular roller 15, and with the other horizontal portion of said double "T” that is projected cantilevered towards the interior of said tubular roller 15.
• its first axial end portion 14sx includes an interior circular housing for housing the nut/female-screw 11 , in which by means of screws 10 said nut/female-screw 11 is fixed with respect to said first tubular support 14.
• said first guide means 9 and said second guide means 13 form between them a prismatic coupling, wherein said prismatic coupling allow the relative axial movement between said tubular roller 15 and said first tubular support 14 and does not allow relative radial movement between said tubular roller 15 and said first tubular support 14.
• a prismatic coupling by means of said first guide means 9 and by said second guide means 13 is formed a prismatic coupling, in which said prismatic coupling allows relative axial movement between said tubular roller 15 and said first tubular support 14 keeping the inner surface of the first tubular support 14 radially spaced with respect to the outer surface configured by the outer diameter of the threaded portion 7a of the central support 7.
• said anti-friction means 16 preferably comprise a bearing 16, such as a rolling bearing and/or an axial bearing, in which said bearing 16 is mounted and/or disposed around said central support pin 7 in a axially sliding manner, configuring an axis 16x disposed coaxially with respect to the first axis 15x.
• a bearing 16 such as a rolling bearing and/or an axial bearing, in which said bearing 16 is mounted and/or disposed around said central support pin 7 in a axially sliding manner, configuring an axis 16x disposed coaxially with respect to the first axis 15x.
• said bearing 16 comprises a first ring 16sx and a second ring 16dx, pivotally movable relative to one another, in which the first ring 16sx is associated with the second end portion 14dx of the first tubular member 14 and in which the second ring 16dx is associated with the first end portion 14sx of the second tubular support 17.
• anti-friction tubular support 17 adapted to slide axially along the central pin 7 with minimum friction and, preferably, a tubular support 17 made of antifriction material (for example Teflon, polyzene, etc.), or a tubular support comprising an inner skirt made with antifriction material.
• antifriction material for example Teflon, polyzene, etc.
• said elastic means 18 preferably comprise an axial/compression spring 18, which extends axially and is arranged to fit around said central support pin 7.
• said axial spring 18 has a first end portion 18sx associated with the second axial portion 17dx of the second tubular element 17, and a second axial portion 18dx associated with the first axial end portion 19sx of the third tubular support 19.
• said axial spring 18 has a wire adapted to form the coils having a square, or rectangular, or elliptical or circular cross section.
• the system described above may also include a spacer 6, axially positioned at the side of the first end portion 14sx of the first tubular support 14, wherein said spacer 6 provides to define the end position to the left to the axial feed nut 1 1 and/or to the first tubular support 14, wherein said spacer 6 is preferably axially movable and axially fixable in an adjustable manner, and so determine the end stroke of the nut 1 1 and/or of said tubular support 14.
• said spacer 6 comprises a tubular element 6 fitted around said central pin 7, as well as fixing/releasing means 28 able to fix/release said spacer 6 with respect to said central pivot 7.
• roller 15 On the outer surface 15a of the roller 15 shall be fixed the end of the roll tape and rolled an end portion of the same roll tape (not shown) and the system is fixed into two stationary support-housing (elements not illustrated) by one or two square connections 1 and 26, so that the central support pin 7 should not rotating.

Landscapes

• Friction Gearing (AREA)
• Adhesive Tape Dispensing Devices (AREA)
• Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
• Preliminary Treatment Of Fibers (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=48046510

Family Applications (1)

Country Status (3)

Family Cites Families (1)

• 2012
  • 2012-09-27 IT IT000096U patent/ITBO20120096U1/it unknown
• 2013
  • 2013-09-17 EP EP13802720.6A patent/EP2900578A1/de not_active Withdrawn
  • 2013-09-17 WO PCT/IT2013/000250 patent/WO2014049626A1/en active Application Filing

Non-Patent Citations (2)

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