EP2147126B1 - Clicking press - Google Patents

Clicking press Download PDF

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Publication number
EP2147126B1
EP2147126B1 EP07736781A EP07736781A EP2147126B1 EP 2147126 B1 EP2147126 B1 EP 2147126B1 EP 07736781 A EP07736781 A EP 07736781A EP 07736781 A EP07736781 A EP 07736781A EP 2147126 B1 EP2147126 B1 EP 2147126B1
Authority
EP
European Patent Office
Prior art keywords
arm
plane
press according
clicking
pressing
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.)
Not-in-force
Application number
EP07736781A
Other languages
German (de)
French (fr)
Other versions
EP2147126A1 (en
Inventor
Gianfranco Baldi
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.)
Ares (Italia) Srl
Original Assignee
Ares (Italia) Srl
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Filing date
Publication date
Application filed by Ares (Italia) Srl filed Critical Ares (Italia) Srl
Publication of EP2147126A1 publication Critical patent/EP2147126A1/en
Application granted granted Critical
Publication of EP2147126B1 publication Critical patent/EP2147126B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B5/00—Clicking, perforating, or cutting leather
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type

Definitions

  • the present invention relates to a clicking press for processing leather, hides, rubber and the like and in particular a turning arm clicking press (see for example DE-A-35 46 250 ).
  • Turning arm clicking presses generally comprise a base on the top of which a working plane is arranged allowing to place a work piece and the tool or tools provided for the processing.
  • the base is provided with a vertical support on which an arm is arranged supporting a pressing plane substantially parallel to the working plane.
  • the support is movable in the vertical direction and driven by driving means arranged inside the base such as, for example, a hydraulic servomechanism, and the turning arm is rotatable relative to the base around a substantially vertical axis.
  • the arm In order to carry out a clicking operation, the arm is so rotated to place the pressing plane over the work piece and the tools arranged on the working plane, then the support is driven pressing with a given force the pressing plane on the tools and the work piece, and finally the support is driven in the opposite direction in order to move the working plane away and thus enable the rotation of the turning arm and the access to the working plane for the removal of the work piece.
  • Turning arm clicking presses are extremely practical and inexpensive machines, however they exhibit the drawback of having pressing planes of a much lower size with respect to the size of the working plane and such to not allow to exploit their whole area even by rotating the pressing plane in several positions by means of the turning arm. This results in a remarkable limit to the size of the pieces processable on this type of machines.
  • the rotation of the turning arm in order to try to cover more zones of the working plane during the processing of a work piece often results in a low quality of the processing.
  • the turning arm clicking press is provided with rotation blocking means that define a working position of the turning arm in which the pressing plane is substantially overlapped with the working plane.
  • the pressing plane is longitudinally slidable relative to the turning arm and has a size substantially corresponding to the size of the working plane.
  • the main advantage of the clicking press according to the present invention is that through a single precise and repeatable positioning of the turning arm and a single driving of the pressing plane, it is possible to entirely cover the surface of the working plane, thus being able to process work pieces of a larger size with respect to the work pieces that can be processed on clicking presses of a similar size and to obtain processings with a high and uniform quality.
  • the possibility of making the pressing plane slide relative to the turning arm makes it possible to access the working plane with neither the need of rotating each time the turning arm, nor the need of positioning it again for the subsequent processing, resulting in remarkable time savings, especially in the case of mass production.
  • the sliding of the pressing plane relative to the turning arm may be driven both manually and automatically, thus providing the user with the maximum ease of handling in any situation.
  • the clicking press comprises in a known way a base 1 on the top of which a working plane 2 is arranged.
  • the base is provided with a vertical support 3 on which an arm 4 is fixed supporting a pressing plane 5 substantially parallel to the working plane 2.
  • the support 3 is movable in the vertical direction and is driven by driving means arranged inside base 1, a hydraulic servomechanism for instance, in order to carry out a clicking operation and arm 4 is rotatable relative to base 1 around a substantially vertical axis 6.
  • the clicking press also includes blocking means of arm 4, comprising a first blocking element 7 arranged on base 1 and a second blocking element 8 arranged on arm 4.
  • the first and the second blocking elements are suitable to engage one in the other, thus defining a working position of arm 4 wherein the pressing plane 5 is substantially overlapped with the working plane 2.
  • the pressing plane 5 is longitudinally slidable relative to arm 4, in order to enable the access to the working plane 2 between one clicking operation and the following one.
  • the first blocking element may be, for instance, a fork 7 fixed to base 1 and arranged in proximity to support 3, and the second blocking element may be, for instance, a vertical rod 8 fixed to arm 4, which rod engages fork 7 in the working position.
  • the pressing plane 5 has a size substantially corresponding to those of the working plane 2, for example typically 900x450 mm, 1000x500 mm or 1200x500 mm.
  • the arm 4 comprises two side walls 4a, 4b that are respectively provided with longitudinal guides 9a, 9b and the pressing plane 5 is slidable therealong by means of a pair of vertical supports 5a, 5b arranged in proximity to its opposite side edges and provided with bearing means 10a, 10b.
  • the bearing means 10a, 10b are ball bearings.
  • the pressing plane 5 is arranged under the longitudinal guides 9a, 9b, substantially contacting their lower surfaces.
  • the pressing load is transmitted from arm 4 to the pressing plane 5 through the longitudinal guides 9a, 9b.
  • the sliding of the pressing plane 5 relative to arm 4 is limited between a first and a second stop arranged on the longitudinal guides 9a, 9b.
  • the pressing plane 5 preferably further comprises centering means 11 a, 11b arranged on the vertical supports 5a, 5b. and slidable on the lateral surfaces of the longitudinal guides 9a, 9b.
  • the centering means 11a, 11b may comprise, for example, ball bearings urged against the longitudinal guides 9a, 9b by elastic means such as, for instance, Belleville springs, and serve to ensure the alignment of the pressing plane 5 with respect to the working plane 2 in the transverse direction.
  • the pressing plane 5 may be manually slid by acting upon pair of handles 12 arranged thereon and generally comprising the pressing drives of the clicking press.
  • the sliding of the pressing plane may be automatically driven by means of a servomechanism such as, for example, a gearmotor and a worm.
  • gearmotor 13 is arranged provided on the output shaft with a worm 14 fitted in a threaded collar 15, which is arranged in the back portion of the pressing plane 5.
  • the driving of gearmotor 13 generates a rotation of worm 14, which determines a sliding of the pressing plane 5 between the two end-stroke positions by means of the threaded collar 15.
  • the drive of servomechanism 13, 14, 15 may be advantageously arranged in the driving handles 12 fixed on the pressing plane 5 and position sensors, suitable to automatically block the pressing plane 5, may be placed at the end-stroke locations.
  • the side walls 4a, 4b of arm 4 may be provided with a truss structure made up of struts and tie rods, which provides arm 4 with a high flexural rigidity while maintaining at the same time a low weight of the structure.
  • transverse reinforcing elements may be arranged between the side walls 4a, 4b, suitable to provide arm 4 with an improved torsional rigidity, thus enabling arm 4 to withstand, without being deformed, pressing loads being higher than those of known turning arm clicking presses and typical of clicking presses of larger size.

Abstract

A clicking press comprises a base (1) on the top of which a working plane (2) is arranged. The base (1) is provided with a vertical support (3) on which an arm (4) is assembled supporting a pressing plane (5) substantially parallel to the working plane (2). The support (3) is movable in the vertical direction by driving means arranged inside the base (1) and the arm (4) is rotatable relative to the base (1) around a substantially vertical axis (6). The clicking press according to the present invention is also provided with blocking means (7, 8) of the arm (4), comprising a first blocking element (7) arranged on the base (1) and a second blocking element (8) arranged on the arm (4). The first and second blocking elements (7, 8) are suitable to engage one in the other defining a working position of the arm (4) in which the pressing plane (5) is substantially overlapped with the working plane (2). The pressing plane (5) is longitudinally slidable relative to the arm (4) in order to enable the access to the working plane (2) between a clicking operation and the following one.

Description

  • The present invention relates to a clicking press for processing leather, hides, rubber and the like and in particular a turning arm clicking press (see for example DE-A-35 46 250 ).
  • Turning arm clicking presses generally comprise a base on the top of which a working plane is arranged allowing to place a work piece and the tool or tools provided for the processing. The base is provided with a vertical support on which an arm is arranged supporting a pressing plane substantially parallel to the working plane. The support is movable in the vertical direction and driven by driving means arranged inside the base such as, for example, a hydraulic servomechanism, and the turning arm is rotatable relative to the base around a substantially vertical axis. In order to carry out a clicking operation, the arm is so rotated to place the pressing plane over the work piece and the tools arranged on the working plane, then the support is driven pressing with a given force the pressing plane on the tools and the work piece, and finally the support is driven in the opposite direction in order to move the working plane away and thus enable the rotation of the turning arm and the access to the working plane for the removal of the work piece.
  • Turning arm clicking presses are extremely practical and inexpensive machines, however they exhibit the drawback of having pressing planes of a much lower size with respect to the size of the working plane and such to not allow to exploit their whole area even by rotating the pressing plane in several positions by means of the turning arm. This results in a remarkable limit to the size of the pieces processable on this type of machines. In addition, the rotation of the turning arm in order to try to cover more zones of the working plane during the processing of a work piece often results in a low quality of the processing.
  • It is therefore an object of the present invention to provide a turning arm clicking press, which is free from said disadvantages. Said object is achieved with a turning arm clicking press, whose main features are disclosed in the first claim and other features are disclosed in the remaining claims.
  • The turning arm clicking press according to the present invention is provided with rotation blocking means that define a working position of the turning arm in which the pressing plane is substantially overlapped with the working plane. The pressing plane is longitudinally slidable relative to the turning arm and has a size substantially corresponding to the size of the working plane.
  • The main advantage of the clicking press according to the present invention is that through a single precise and repeatable positioning of the turning arm and a single driving of the pressing plane, it is possible to entirely cover the surface of the working plane, thus being able to process work pieces of a larger size with respect to the work pieces that can be processed on clicking presses of a similar size and to obtain processings with a high and uniform quality.
  • Further, the possibility of making the pressing plane slide relative to the turning arm makes it possible to access the working plane with neither the need of rotating each time the turning arm, nor the need of positioning it again for the subsequent processing, resulting in remarkable time savings, especially in the case of mass production.
  • The sliding of the pressing plane relative to the turning arm may be driven both manually and automatically, thus providing the user with the maximum ease of handling in any situation.
  • Further advantages and features of the turning arm clicking press according to the present invention will become clear to those skilled in the art from the following detailed and non-limiting description of an embodiment thereof with reference to the attached drawings, wherein:
    • figure 1 shows a schematic perspective view of the clicking press according to the present invention:
    • figure 2 shows a detail II of figure 1;
    • figure 3 shows a front view of the clicking press of figure 1; and
    • figure 4 shows a side view of the clicking press of figure 1.
  • Referring to figure 1, the clicking press according to the present invention comprises in a known way a base 1 on the top of which a working plane 2 is arranged. The base is provided with a vertical support 3 on which an arm 4 is fixed supporting a pressing plane 5 substantially parallel to the working plane 2. The support 3 is movable in the vertical direction and is driven by driving means arranged inside base 1, a hydraulic servomechanism for instance, in order to carry out a clicking operation and arm 4 is rotatable relative to base 1 around a substantially vertical axis 6.
  • According to the present invention, the clicking press also includes blocking means of arm 4, comprising a first blocking element 7 arranged on base 1 and a second blocking element 8 arranged on arm 4. The first and the second blocking elements are suitable to engage one in the other, thus defining a working position of arm 4 wherein the pressing plane 5 is substantially overlapped with the working plane 2. In addition, the pressing plane 5 is longitudinally slidable relative to arm 4, in order to enable the access to the working plane 2 between one clicking operation and the following one.
  • As shown in the detail of figure 2, the first blocking element may be, for instance, a fork 7 fixed to base 1 and arranged in proximity to support 3, and the second blocking element may be, for instance, a vertical rod 8 fixed to arm 4, which rod engages fork 7 in the working position.
  • The pressing plane 5 has a size substantially corresponding to those of the working plane 2, for example typically 900x450 mm, 1000x500 mm or 1200x500 mm.
  • As shown in figure 3, the arm 4 comprises two side walls 4a, 4b that are respectively provided with longitudinal guides 9a, 9b and the pressing plane 5 is slidable therealong by means of a pair of vertical supports 5a, 5b arranged in proximity to its opposite side edges and provided with bearing means 10a, 10b. Preferably, the bearing means 10a, 10b are ball bearings.
  • In order to enable a correct pressing action, the pressing plane 5 is arranged under the longitudinal guides 9a, 9b, substantially contacting their lower surfaces. Thus, once the arm 4 has been blocked in the working position and the pressing plane 5 has been positioned, the pressing load is transmitted from arm 4 to the pressing plane 5 through the longitudinal guides 9a, 9b.
  • The sliding of the pressing plane 5 relative to arm 4 is limited between a first and a second stop arranged on the longitudinal guides 9a, 9b.
  • The pressing plane 5 preferably further comprises centering means 11 a, 11b arranged on the vertical supports 5a, 5b. and slidable on the lateral surfaces of the longitudinal guides 9a, 9b. The centering means 11a, 11b may comprise, for example, ball bearings urged against the longitudinal guides 9a, 9b by elastic means such as, for instance, Belleville springs, and serve to ensure the alignment of the pressing plane 5 with respect to the working plane 2 in the transverse direction.
  • The pressing plane 5 may be manually slid by acting upon pair of handles 12 arranged thereon and generally comprising the pressing drives of the clicking press. Alternatively, the sliding of the pressing plane may be automatically driven by means of a servomechanism such as, for example, a gearmotor and a worm.
  • As shown in figure 4, in the back portion of arm 4 a gearmotor 13 is arranged provided on the output shaft with a worm 14 fitted in a threaded collar 15, which is arranged in the back portion of the pressing plane 5. The driving of gearmotor 13 generates a rotation of worm 14, which determines a sliding of the pressing plane 5 between the two end-stroke positions by means of the threaded collar 15.
  • The drive of servomechanism 13, 14, 15 may be advantageously arranged in the driving handles 12 fixed on the pressing plane 5 and position sensors, suitable to automatically block the pressing plane 5, may be placed at the end-stroke locations.
  • Possible variants and/or additions may be made by those skilled in the art to the hereinabove disclosed and illustrated embodiment while remaining within the scope of the following claims. In particular, for example, the side walls 4a, 4b of arm 4 may be provided with a truss structure made up of struts and tie rods, which provides arm 4 with a high flexural rigidity while maintaining at the same time a low weight of the structure. Further, transverse reinforcing elements may be arranged between the side walls 4a, 4b, suitable to provide arm 4 with an improved torsional rigidity, thus enabling arm 4 to withstand, without being deformed, pressing loads being higher than those of known turning arm clicking presses and typical of clicking presses of larger size.

Claims (16)

  1. A clicking press comprising a base (1) on the top of which a working plane (2) is arranged, said base (1) being provided with a vertical support (3) on which an arm (4) is assembled supporting a pressing plane (5) substantially parallel to the working plane (2), said support (3) being movable in the vertical direction by driving means arranged inside the base (1) and said arm (4) being rotatable relative to the base (1) around a substantially vertical axis (6), characterized by further comprising blocking means (7, 8) of the arm (4), said blocking means (7, 8) comprising a first blocking element (7) arranged on the base (1) and a second blocking element (8) arranged on the arm (4), said first and second blocking elements (7, 8) being suitable to engage one in the other defining a working position of the arm (4) in which the pressing plane (5) is substantially overlapped with the working plane (2), said pressing plane (5) being longitudinally slidable relative to the arm (4) in order to enable the access to the working plane (2) between a clicking operation and the following one.
  2. A clicking press according to the previous claim, characterized in that said first blocking element (7) is a fork fixed to the base (1) and arranged in proximity to the support (3) and said second blocking element (8) is a vertical rod fixed to the arm (4), said vertical rod (8) being suitable to engage the fork (7) in said working position.
  3. A clicking press according to one of the previous claims, characterized in that said pressing plane (5) has a size substantially corresponding to the size of the working plane (2).
  4. A clicking press according to the previous claim, characterized in that said working plane has a size of 900x450 mm, 1000x500 mm or 1200x500 mm.
  5. A clicking press according to one of the previous claims, characterized in that said arm (4) comprises two side walls (4a, 4b) respectively provided with longitudinal guides (9a, 9b), the pressing plane (5) being slidable along said longitudinal guides (9a, 9b) by means of a pair of vertical supports (5a, 5b) arranged in proximity to its opposite side edges and provided with bearing means (10a, 10b)
  6. A clicking press according to the previous claim, characterized in that said bearing means (10a, 10b) are ball bearings.
  7. A clicking press according to one of the previous claims, characterized in that the pressing plane (5) is arranged under the longitudinal guides (9a, 9b) substantially contacting their lower surfaces.
  8. A clicking press according to one of claims 5 to 7, characterized in that the sliding of the pressing plane (5) relative to the arm (4) is limited between a first and a second stop arranged on said longitudinal guides (9a, 9b).
  9. A clicking press according to one of claims 5 to 8, characterized in that the pressing plane (5) also comprises centering means (11a, 11b) arranged on the vertical supports (5a, 5b) and slidable on the lateral surfaces of the longitudinal guides (9a, 9b), said centering means (11a, 11b) being suitable to ensure the alignment of the pressing plane (5) to the working plane (2) in the transverse direction.
  10. A clicking press according to the previous claim, characterized in that said centering means (11a, 11b) comprise ball bearings urged against the longitudinal guides (9a, 9b) by spring means.
  11. A clicking press according to claim 1, characterized in that the pressing plane (5) is manually slidable relative to arm (4) by means of a pair of driving handles (12) arranged thereon, said handles (12) comprising the pressing drives of the clicking press.
  12. A clicking press according to claim 1, characterized in that the pressing plane (5) is automatically slidable relative to arm (4) by means of a servomechanism (13, 14, 15).
  13. A clicking press according to the previous claim, characterized in that said servomechanism (13, 14, 15) comprises a gearmotor (13) provided on the output shaft with a worm (14) suitable to engage a threaded collar (15) arranged in the back portion of the pressing plane (5).
  14. A clicking press according to the previous claim, characterized in that said servomechanism (13, 14, 15) is directly driven from the driving handles (12) fixed on the pressing plane (5).
  15. A clicking press according to the previous claim, characterized in that position sensors suitable to automatically block the pressing plane (5) are provided at the end-stroke positions.
  16. A clicking press according to one of the previous claims, characterized in that the side walls (4a, 4b) of the arm (4) comprise a truss structure and that transverse reinforcing elements are arranged between said side walls (4a, 4b), said truss structure and transverse reinforcing elements being suitable to provide the arm (4) with a high flexural and torsional rigidity.
EP07736781A 2007-04-17 2007-04-17 Clicking press Not-in-force EP2147126B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2007/000277 WO2008126115A1 (en) 2007-04-17 2007-04-17 Clicking press

Publications (2)

Publication Number Publication Date
EP2147126A1 EP2147126A1 (en) 2010-01-27
EP2147126B1 true EP2147126B1 (en) 2011-03-09

Family

ID=38535369

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07736781A Not-in-force EP2147126B1 (en) 2007-04-17 2007-04-17 Clicking press

Country Status (5)

Country Link
EP (1) EP2147126B1 (en)
CN (1) CN101668868B (en)
AT (1) ATE501281T1 (en)
DE (1) DE602007013113D1 (en)
WO (1) WO2008126115A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20130009A1 (en) * 2013-01-07 2014-07-08 Atom Spa ADJUSTABLE DEVICE FOR TEMPORARY STABILIZATION OF MATERIALS TO BE RECORDED ON CUTTING TABLES

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3546250A1 (en) * 1985-09-17 1987-03-26 Schoen & Cie Gmbh Swivel arm punch
DE4214513C1 (en) * 1992-05-01 1993-06-17 Schuhmaschinenbau Compart Gmbh, O-4850 Weissenfels, De Swivel arm punching press with easily movable pressure arm - has slide bearings for stationary column, with guide bar for pressure arm
CN2289824Y (en) * 1997-02-25 1998-09-02 新乡市第二机床厂 Paper pressing forming machine
ITBO20020683A1 (en) * 2002-10-31 2004-05-01 Sacmi DEVICE FOR THE COLLECTION OF DOSES OF PLASTIC MATERIAL FROM AN EXTRUDER
DE10306840A1 (en) * 2003-02-18 2004-09-02 Georg Leiritz Horizontal moulding machine comprises two sections which can move towards each other, guide bars, a removal unit, a chamber and a transport unit

Also Published As

Publication number Publication date
EP2147126A1 (en) 2010-01-27
CN101668868A (en) 2010-03-10
WO2008126115A1 (en) 2008-10-23
ATE501281T1 (en) 2011-03-15
DE602007013113D1 (en) 2011-04-21
CN101668868B (en) 2012-11-14

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