EP4149721A1 - Drive unit for a press collar - Google Patents
Drive unit for a press collarInfo
- Publication number
- EP4149721A1 EP4149721A1 EP21723665.2A EP21723665A EP4149721A1 EP 4149721 A1 EP4149721 A1 EP 4149721A1 EP 21723665 A EP21723665 A EP 21723665A EP 4149721 A1 EP4149721 A1 EP 4149721A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- press
- pressing
- drive unit
- sling
- marking
- 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.)
- Granted
Links
- 238000004049 embossing Methods 0.000 claims description 3
- 230000006378 damage Effects 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
- B21D39/048—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods using presses for radially crimping tubular elements
Definitions
- the present invention relates to a drive unit for use with a press sling for pressing two workpieces and a system with such a drive unit and such a press sling.
- a press sling is known in which several press elements are connected to one another in an articulated and chain-like manner by means of bolts.
- Each press element has a plurality of press strap segments arranged in parallel, which extend from one bolt to the next.
- the press sling segments of successive press elements of the press sling are arranged offset. A force is transmitted from one press element to the next via the press strap segments.
- a connecting bolt is provided with the first pressing element and the last pressing element.
- An in particular electrohydraulic drive unit can be connected to this connecting bolt.
- the drive unit has pressing tongs with two jaws.
- the jaws of the pressing tongs can be moved towards one another by means of a drive of the drive unit.
- the jaws each have a recess for receiving a connecting bolt, so that the movement of the jaws is transmitted to the press sling.
- the press sling is to be connected to the press tongs of the drive unit by the user himself, in particular by inserting the connecting bolts into the respective recess of the drive unit.
- This can lead to errors, in particular since the recess can under certain circumstances be covered by a press sling segment, so that a visual inspection of the correct seating of the connecting bolt in the respective recess may not be possible or only with difficulty.
- the connecting bolt is incompletely inserted into the recess of the jaw, this can lead to damage to the jaw of the pressing tongs, to complete destruction or, if the connecting bolt is suddenly loosened from the recess of the jaw, there is even a risk of injury to the user.
- the object of the present invention is therefore to create a drive unit in which a secure connection to a press sling is ensured.
- the object is achieved by the drive unit for use with a press sling for pressing two workpieces according to claim 1 and by the system with such a drive unit and a corresponding press sling according to claim 6.
- the drive unit according to the invention for use with a press sling for pressing two workpieces has a drive and pressing tongs connected to the drive, the pressing tongs having two jaws.
- the jaws of the pressing tongs can be moved towards one another in order to close the press loop and press the two workpieces.
- the two jaws each have a first connection element for connection to a second connection element of a press sling. This ensures that the force of the drive is transmitted via the pressing tongs to the pressing sling.
- at least one of the first connecting elements is at least partially surrounded by a marking. In particular, at least one of the first connecting elements is completely surrounded by a marking.
- the marking makes it easier to estimate the relative position between the second connecting element of the press sling and the first connecting element of the jaws of the pressing tongs. In this way it can be visually ensured by the user that a correct and complete connection of the second connecting element to the first The connecting element is guaranteed due to the visual indication by the applied marking.
- the size of the marking is preferably adapted to a press sling segment of the press sling, the marking being completely covered by the press sling segment only if the second connecting element of the press sling is completely connected to the first connecting element.
- the press sling segment which is connected to the second connecting element of the press sling, has a known width. If the second connection element of the press sling is now connected to the first connection element of the jaw of the drive unit, the press sling segment completely covers the marking. A visual cue is thus provided to the user. As long as the marking is still visible, the second connection element of the press sling is not completely connected to the first connection element of the jaw. A secure connection of the second connecting element to the first connecting element of the jaw is only ensured when the marking is completely covered by the press sling segment. This provides the user with simple and clear information that ensures the safe use of the press sling with the drive unit.
- both first connecting elements are each surrounded by a marking, so that the secure fit of both second connecting elements of the press sling in the respective first connecting elements can be clearly recognized.
- the first connecting element is preferably designed as a recess, in particular designed as a connecting bolt or the like for receiving a second connecting element.
- the first connecting element is designed as a pin, projection or the like, which can be connected to a second connecting element of the press sling, in particular designed as a recess.
- the marking is preferably a color marking, a surface embossing, a sticker or a lasered surface structure.
- surface embossing and lasered surface structure have the advantage that they cannot be rubbed off and are therefore permanently applied to the jaw of the pressing tongs.
- the marking is preferably surrounded by a further marking.
- the further marking is arranged radially around the original marking.
- the further marking has a size which is only completely covered by a press sling segment of a further press sling if a third connecting element of the further press sling is completely connected to the first connecting element. It is thus possible through the further marking to use a different press sling, the press sling segments of which have a different dimension.
- the original, first marking must be completely covered for a first press sling, whereas the further marking has to be completely covered for a second further press sling.
- the present invention further relates to a system with a drive unit as described above and a press sling for connecting to the drive unit.
- the press sling has a plurality of press elements connected to one another in an articulated, chain-like manner by means of bolts.
- Each press element has a plurality of press strap segments which are arranged in parallel and extend from one bolt to the next of the respective press element.
- a second connection element is provided on the first press element and the last press element of the press sling for connection to the first connection element of the drive unit.
- the press sling segments are preferably each plate-shaped and extend laterally over the second connecting element and likewise the respective bolts between the press elements.
- the drive unit is preferably connected to one another with the respective second connecting element below the respective uppermost press-ching segment.
- the uppermost press sling segment of the press hides the first connecting element of the jaw in a plan view. If the second connecting element is correctly and completely connected to the first connecting element of the jaw, at least the uppermost press sling segment also completely covers the intended marking.
- the jaw of the pressing tongs engages between two pressing belt segments and is connected to the second connecting element of the pressing belt between these two pressing belt segments.
- the system preferably has a large number of different press slings, whereby all press slings in the area of the respective connecting elements are identical, that is, the lateral extension of the respective press sling segments is identical, so that due to a complete coverage of the marking by the respective press sling segment of the different press slings, a correct one Connection of the second connecting element with the first connecting element of the jaw can be closed.
- the system has a large number of different press slings, with at least two press slings being designed differently in the area of the respective second connecting elements, so that a first marking is covered by a press sling segment of a first press sling, whereas a further marking, in particular the first Surrounding marking, is covered by a press sling segment of another press sling.
- Figure 1 is a schematic plan view of a drive unit with a
- Figure 2 shows a detailed view of the jaw of the drive unit
- FIGS. 3A and 3B show a detailed view.
- FIG. 1 shows the drive unit 10 as well as the press sling 12.
- the drive unit 10 has a drive (not shown) which can in particular be designed electrohydraulically.
- the drive causes a piston 14 to move, whereby the jaws 16 of a pressing tong 18 are moved about respective axes of rotation 19, so that the end of the pressing tongs 18 facing away from the drive, the jaws 16, are moved towards one another according to the arrows 22.
- the jaws 16 have first connecting elements, which are designed as recesses 24 (FIG. 2), for connecting to second connecting elements of the press sling 12, designed as connecting bolts 26.
- first connecting element and the second connecting element can have other shapes, the Shape of the first connecting element and the second connecting element is always designed to ensure a power transmission from the drive unit 10 to the press sling 12.
- the first connecting element and the second connecting element have congruent shapes, at least partially around one another To generate form fit.
- the press sling 12 has three press elements 28 which are connected to one another in a chain-like and articulated manner via bolts 30.
- the pressing elements 28 have a common pressing surface 32 lying on the inside, which come into contact with the workpieces 33 for pressing the workpieces 33.
- the pressing elements 28 have pressing strap segments 34 which extend between the bolts 26, 30.
- the press strap segments 34 are designed, in particular, in the shape of a plate.
- the jaw 16 of the pressing tongs 18 engages below the uppermost pressing sling segment 34 to connect the recess 24 of the jaw 16 to the respective connecting bolt 26, so that part of the jaw 16 is covered by the uppermost pressing sling segment 34.
- the recess 24 is at least partially and in particular completely surrounded by a marking 36.
- This marking has a size which is adapted to the size of the press sling segments 34 of the press sling 12.
- the press sling segment 34 completely covers the marking 36 when the connecting bolt 26 is correctly seated in the recess 24 of the jaw 16 . In this way, the user is given a visual indication that the connecting bolt 26 is correctly arranged in the recesses 24 and thus safe handling of the system is guaranteed.
- Figure 3B shows the situation when the connecting bolt 26 is not correctly in the Recess 24 is arranged. Furthermore, the press sling segment 34 of the press sling 12 partially covers the jaw 16, so that the recess 24 can only be seen with difficulty or not at all by the user. A control of the correct seating of the connecting bolt 26 in the recess 24 is thus made more difficult. However, by applying the marking 36, the user can clearly and immediately recognize that the connecting bolt has not yet been completely and correctly received in the recess 24. The user thus has the opportunity to adjust the seat of the connecting bolt 26 and in particular the connection between the press sling 12 and the drive unit 10. Damage to the jaw 16 or injury to the user is thus precisely avoided.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Press Drives And Press Lines (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202020102724.7U DE202020102724U1 (en) | 2020-05-14 | 2020-05-14 | Drive unit |
PCT/EP2021/061172 WO2021228556A1 (en) | 2020-05-14 | 2021-04-28 | Drive unit for a press collar |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4149721A1 true EP4149721A1 (en) | 2023-03-22 |
EP4149721B1 EP4149721B1 (en) | 2024-06-12 |
Family
ID=75801562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21723665.2A Active EP4149721B1 (en) | 2020-05-14 | 2021-04-28 | Drive unit for a press collar |
Country Status (7)
Country | Link |
---|---|
US (1) | US20230127551A1 (en) |
EP (1) | EP4149721B1 (en) |
KR (1) | KR20230005867A (en) |
CN (1) | CN115605320A (en) |
AU (1) | AU2021270710A1 (en) |
DE (1) | DE202020102724U1 (en) |
WO (1) | WO2021228556A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD906074S1 (en) * | 2018-11-21 | 2020-12-29 | Wezag Gmbh Werkzeugfabrik | Crimping pliers |
DE102021105243B4 (en) | 2021-03-04 | 2022-10-13 | Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg | pressing tool |
DE202021102613U1 (en) | 2021-05-12 | 2022-08-18 | Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft | Press ring, press tool and adapter elements |
DE102023100782B3 (en) | 2023-01-13 | 2024-05-02 | Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft | Press tool |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6044686A (en) | 1990-04-12 | 2000-04-04 | Dischler; Helmut | Compression tool for compression molding die |
WO1998040178A1 (en) * | 1997-03-11 | 1998-09-17 | Gustav Klauke Gmbh | Pressing tool |
DE10107579B4 (en) | 2000-10-19 | 2012-04-26 | Gustav Klauke Gmbh | Pressing tool for pressing pipe ends and press insert for a pressing jaw of a pressing tool |
US6923037B2 (en) | 2002-06-17 | 2005-08-02 | Emerson Electric Co. | Assembly for articulating crimp ring and actuator |
ATE372840T1 (en) * | 2003-11-27 | 2007-09-15 | Geberit Technik Ag | PRESS TOOL |
RU2007122629A (en) | 2004-11-24 | 2008-12-27 | Эмерсон Электрик Ко. (Us) | FITTING CLAMP (OPTIONS) |
DE202005008125U1 (en) | 2005-05-24 | 2006-10-05 | Herrle, Richard | Pressing tool, press ring and pressing tongs |
DE202007013586U1 (en) | 2006-09-30 | 2008-02-21 | Uponor Innovation Ab | Pressing system for pipe connections |
KR100762293B1 (en) * | 2007-03-30 | 2007-10-01 | 주식회사 다성테크 | Apparatus for press-connecting pipes |
DE202013007496U1 (en) | 2013-08-21 | 2014-11-28 | Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg | Pressing sling for connecting in particular tubular workpieces |
KR101911507B1 (en) * | 2018-05-03 | 2018-10-24 | 주식회사 다성테크 | Connection device and apparatus for press-connecting pipes using the same |
-
2020
- 2020-05-14 DE DE202020102724.7U patent/DE202020102724U1/en active Active
-
2021
- 2021-04-28 US US17/924,228 patent/US20230127551A1/en active Pending
- 2021-04-28 EP EP21723665.2A patent/EP4149721B1/en active Active
- 2021-04-28 CN CN202180034518.5A patent/CN115605320A/en active Pending
- 2021-04-28 WO PCT/EP2021/061172 patent/WO2021228556A1/en unknown
- 2021-04-28 KR KR1020227039296A patent/KR20230005867A/en unknown
- 2021-04-28 AU AU2021270710A patent/AU2021270710A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE202020102724U1 (en) | 2021-08-17 |
WO2021228556A1 (en) | 2021-11-18 |
EP4149721B1 (en) | 2024-06-12 |
KR20230005867A (en) | 2023-01-10 |
AU2021270710A1 (en) | 2022-12-15 |
CN115605320A (en) | 2023-01-13 |
US20230127551A1 (en) | 2023-04-27 |
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