EP0504579A1 - Vorrichtung mit vielfachen Hammerplatten zum Stollen und Geschmeidigmachen von industriellen Fellen und dergleichen - Google Patents
Vorrichtung mit vielfachen Hammerplatten zum Stollen und Geschmeidigmachen von industriellen Fellen und dergleichen Download PDFInfo
- Publication number
- EP0504579A1 EP0504579A1 EP92102147A EP92102147A EP0504579A1 EP 0504579 A1 EP0504579 A1 EP 0504579A1 EP 92102147 A EP92102147 A EP 92102147A EP 92102147 A EP92102147 A EP 92102147A EP 0504579 A1 EP0504579 A1 EP 0504579A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plates
- machine according
- beating
- movable
- perching machine
- 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
- 238000010009 beating Methods 0.000 title claims abstract description 33
- 230000010355 oscillation Effects 0.000 claims abstract description 10
- 230000000295 complement effect Effects 0.000 claims abstract description 5
- 208000028804 PERCHING syndrome Diseases 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000033001 locomotion Effects 0.000 claims description 8
- 230000008901 benefit Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/40—Softening or making skins or leather supple, e.g. by staking, boarding, or crippling machines, by dry mills
-
- 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
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/26—Leather tensioning or stretching frames; Stretching-machines; Setting-out boards; Pasting boards
Definitions
- the present invention relates to a machine with multiple beating plates for softening and stretching industrial hides and the like, of the type which comprises hide advancement means interposed between a plurality of upper beating plates which face an equal number of lower beating plates so as to form adjacent pairs of plates in the hide advancement direction.
- hide advancement means interposed between a plurality of upper beating plates which face an equal number of lower beating plates so as to form adjacent pairs of plates in the hide advancement direction.
- one of the plates is fixed and the other one is movable; the movable plate moves alternatively toward and away from the facing fixed plate by virtue of adapted motor means.
- each plate is provided with protrusions which are adapted to cooperate with complementary recesses defined on the opposite plate.
- the Italian patent No. 883012 in the name of the same Applicant describes a perching machine having a single pair of beating plates.
- multiple beating plates arranged one after another in the hide advancement direction, have subsequently been used.
- An electric motor for each individual beating plate has also been used in order to limit the power and bulk of the installed motors.
- Machines of this type offer the advantage of considerable functionality and high productivity, but are not free from some acknowledged problems.
- the electric motors used to actuate each beating plate are identical, they differ in rotation rate and maximum delivered power, and therefore it is not possible to ensure strictly identical oscillation frequencies for the various beating plates.
- the supporting frame of the machine as a whole is subjected to considerable vibrations which are only partially damped by eccentric masses and vibration-damping supports. Because of the difference in oscillation frequency, the plates tend to progressively lose their synchronization until they are periodically in the same phase even if they are initially set in phase opposition. The machine is thus periodically subjected to a resonance peak accompanied by a sharp jolt and by a certain noise.
- This resonance can cause damage to the machine's supporting structure after sometime, especially at the welded joints, with a consequent reduction in the average life and sometimes with the need for repairs and interruptions of the machine's operation.
- a further negative consequence of this resonance is constituted by the limitation of the maximum frequency of the oscillation of the beating plates around values of approximately 550-570 beats per minute, in order to prevent dangerous vibrations in the structure of the machine.
- the aim of the present invention is to eliminate the problems described above by providing a perching machine with multiple beating plates which has high characteristics of reliability and productivity, as well as of maximum quietness and uniformity in operation.
- a particular object of the invention is to provide a perching machine with multiple beating plates which prevents resonance during the oscillation of the beating plates.
- a further object of the present invention is to provide a perching machine with multiple beating plates which can use higher oscillation frequencies than previous ones without thereby causing resonance.
- a perching machine with multiple beating plates for industrial hides and the like comprising a supporting frame, said supporting frame supporting means for the advancement of the hides, a plurality of upper beating plates, said upper beating plates facing respective lower beating plates so as to form adjacent pairs of plates in the hide advancement direction, each of said plates being provided with protrusions adapted to cooperate with complementary recesses, said recesses being formed on an opposite of said plates, each pair of facing plates having a movable plate and a fixed plate, motor means being provided for acting on said movable plates in order to move said movable plates alternatively toward and away from the fixed plates, characterized in that it is provided with synchronisation means which act on said motor means in order to equalize the oscillation frequencies of the adjacent movable plates.
- the synchronization means are selected so as to keep the alternating movement of the adjacent plates constantly in phase opposition.
- a perching machine generally designated by the reference numeral 1, comprises a supporting frame 2 which is formed by strong steel beams and supports hide advancement means constituted by a pair of conveyor belts 3 and 4 which have adjacent portions in mutual contact in order to entrain hides P to be treated.
- Pairs of beating plates are arranged on opposite sides with respect to the adjacent portions of the belts 3 and 4.
- each pair is constituted by an upper plate 6 and by a lower plate 7 which are arranged respectively on opposite sides with respect to the hides to be treated.
- the first pair of plates 5' is formed by an upper plate 6' which is arranged opposite to a lower plate 7', whereas the second pair 5'' is constituted by an upper plate 6'' which faces a lower plate 7''.
- the upper plates 6' and 6'' are hinged by means of arms 8'and 8'' to supports 9' and 9'' which are mounted on the supporting frame 2.
- the upper plates 6' and 6'' are furthermore provided with protrusions 10' and 10'' which cooperate with complementary recesses 11' and 11'' defined in the lower plates 7' and 7''.
- Motor means are provided for oscillating the movable plates 6' and 6'', for a selected extent and frequency, about the fulcrums 9 and 9'', so as to cause alternating approach and spacing with respect to the fixed plates 7' and 7'' in order to cause the mutual engagement and disengagement of the protrusions 10' and 10'' and of the recesses 11' and 11''.
- the motor means can be constituted by connecting rods 12 and 12'' which connect pivots 13' and 13'' to cranks 14' and 14''. Pivots 13' and 13'' are rigidly associated with the plates 6' and 6''.
- Cranks 14' and 14'' are rigidly associated with respective main shafts 15' and 15''.
- the shafts are rotatably mounted on the supporting frame 2 and are rotated by respective motors M' and M'' by means of adapted transmission belts 16' and 16''.
- respective flywheels 17' and 17'' are fixed to each main shaft 15' and 15'' and are provided with eccentric masses 18' and 18''.
- Flywheels 17', 17'' may optionally be provided with lightening holes 19' and 19'' which are arranged so as to balance the movements of the plates and at least partially reduce the vibrations of the machine.
- synchronization means 20 are provided which act on the motor means in order to equalize the oscillation frequency of the adjacent beating plates 6' and 6''.
- Figure 2 illustrates a first embodiment of said synchronization means 20, which comprises a pair of toothed pulleys 21' and 21'' which are respectively keyed on the shafts 15' and 15'' and are mutually coupled by an adapted toothed belt 22. It is possible to provide a tensioning roller 23 in order to keep the toothed belt 22 constantly under tension.
- the pulleys 21' and 21'' are chosen with an equal diameter and an equal number of teeth, so that the transmission ratio between the shafts 15' and 15'' is 1:1. It is furthermore noted that the pulleys are angularly keyed on the shafts 15' and 15'' so as to keep the cranks 14' and 14'' strictly in phase opposition.
- the synchronization means are constituted by a transmission shaft 24 on which terminal gears 25' and 25'' are keyed; said gears mesh with gears 26' and 26'' which are rigidly associated with the shafts 15' and 15''.
- the transmission ratio is chosen equal to 1:1, with the cranks 14' and 14'' in phase opposition.
- the rotation frequencies of the shafts 15' and 15'' and of any other main shafts are strictly identical, whereas the cranks are orientated so as to keep the oscillations of the beating plates 6', 6'' and 6''' in phase opposition during the operation of the machine.
- the machine according to the invention fully achieves the intended aim and objects, and in particular that it eliminates the resonance phenomena typical of previous multiple-plate machines. It has furthermore been possible to determine that the machine can operate at higher rates, with frequencies around 650 beats per minute, increasing productivity by approximately 20% without producing resonance phenomena.
- the machine thus conceived is susceptible to numerous modifications and variations, all of which are within the scope of the inventive concept defined by the accompanying claims.
- the transmission elements comprised in the synchronization means can be replaced with equivalent systems, such as Cardanic shafts and universal joints, or hydraulic or electronic transmissions, which are assumed to be within the scope of the claimed inventive concept.
- a plurality of motors connected to respective main shafts it is furthermore possible to provide a single motor connected to all the main shafts by means of appropriate transmission elements.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Press Drives And Press Lines (AREA)
- Treatment Of Fiber Materials (AREA)
- Noodles (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
- Reinforced Plastic Materials (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Soil Working Implements (AREA)
- Springs (AREA)
- Preliminary Treatment Of Fibers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITVI910040A IT1247078B (it) | 1991-03-14 | 1991-03-14 | Macchina a piastre battenti multiple per ammorbidire e stirare pelli industriali e similari. |
ITVI910040 | 1991-03-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0504579A1 true EP0504579A1 (de) | 1992-09-23 |
EP0504579B1 EP0504579B1 (de) | 1995-06-07 |
Family
ID=11424561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92102147A Expired - Lifetime EP0504579B1 (de) | 1991-03-14 | 1992-02-09 | Vorrichtung mit vielfachen Hammerplatten zum Stollen und Geschmeidigmachen von industriellen Fellen und dergleichen |
Country Status (14)
Country | Link |
---|---|
EP (1) | EP0504579B1 (de) |
JP (1) | JP3124817B2 (de) |
KR (1) | KR100198894B1 (de) |
CN (1) | CN1028766C (de) |
AT (1) | ATE123534T1 (de) |
BR (1) | BR9200817A (de) |
CZ (1) | CZ283448B6 (de) |
DE (1) | DE69202793T2 (de) |
ES (1) | ES2073198T3 (de) |
IT (1) | IT1247078B (de) |
MX (1) | MX9201126A (de) |
SK (1) | SK279983B6 (de) |
TW (1) | TW203101B (de) |
YU (1) | YU48604B (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996015275A2 (en) * | 1994-11-15 | 1996-05-23 | Officine Di Cartigliano S.P.A. | Semiautomatic feeder line particularly for setting-out/drying machines, vacuum-driers, and stakers for industrial hides |
US5970754A (en) * | 1996-09-13 | 1999-10-26 | Officine Di Cartigliano S.P.A. | Device for continuously adjusting the working pressure for staking machines with beating plates |
US6112559A (en) * | 1995-11-06 | 2000-09-05 | Emilio Buttazzi | Hide stretching apparatus |
EP1281893A2 (de) * | 2001-08-02 | 2003-02-05 | Hein, Lehmann Trenn- und Fördertechnik GmbH | Schubkurbeltrieb |
US8776554B2 (en) * | 2012-11-21 | 2014-07-15 | Lear Corporation | Method of processing leather material |
CN104894301A (zh) * | 2015-06-29 | 2015-09-09 | 南通思瑞机器制造有限公司 | 一种新型振荡拉软机 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITVI20010220A1 (it) * | 2001-10-23 | 2003-04-23 | Cartigliano Off Spa | Metodo e linea per l'allargamento continuo di pelli ed altri prodottisimilari |
CN101100695B (zh) * | 2007-07-14 | 2011-06-22 | 张复兴 | 全自动皮革揉纹机 |
KR101208589B1 (ko) | 2012-05-15 | 2012-12-06 | 유림산업 (주) | 가죽 가공용 세이밍 머신 |
KR101208593B1 (ko) | 2012-05-31 | 2012-12-06 | 유림산업 (주) | 가죽 가공용 세이밍 머신 |
WO2019106616A1 (en) * | 2017-11-30 | 2019-06-06 | Officine Di Cartigliano S.P.A. | Improved staking machine |
KR101993133B1 (ko) * | 2018-11-08 | 2019-09-30 | (주)코로나 | 습식 피혁 스트레칭 장치 |
GB2613006A (en) * | 2021-11-19 | 2023-05-24 | Duraida Ltd | A vehicle cover for protecting a road going vehicle |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB809179A (en) * | 1956-02-18 | 1959-02-18 | Moenus Maschf | A machine for pressing, smoothing or embossing leather |
FR2325718A1 (fr) * | 1975-09-29 | 1977-04-22 | Dokoupil Jiri | Procede et dispositif pour assouplir ou amollir du cuir |
EP0368233A2 (de) * | 1988-11-07 | 1990-05-16 | Giocondo Baggio | Maschine zum Geschmeidigmachen von Leder |
-
1991
- 1991-03-14 IT ITVI910040A patent/IT1247078B/it active IP Right Grant
-
1992
- 1992-02-09 ES ES92102147T patent/ES2073198T3/es not_active Expired - Lifetime
- 1992-02-09 DE DE69202793T patent/DE69202793T2/de not_active Expired - Fee Related
- 1992-02-09 AT AT92102147T patent/ATE123534T1/de not_active IP Right Cessation
- 1992-02-09 EP EP92102147A patent/EP0504579B1/de not_active Expired - Lifetime
- 1992-02-17 TW TW081101107A patent/TW203101B/zh active
- 1992-03-10 BR BR929200817A patent/BR9200817A/pt not_active IP Right Cessation
- 1992-03-11 JP JP04052684A patent/JP3124817B2/ja not_active Expired - Fee Related
- 1992-03-12 YU YU25092A patent/YU48604B/sh unknown
- 1992-03-12 KR KR1019920004050A patent/KR100198894B1/ko not_active IP Right Cessation
- 1992-03-13 SK SK758-92A patent/SK279983B6/sk not_active IP Right Cessation
- 1992-03-13 CN CN92101635A patent/CN1028766C/zh not_active Expired - Lifetime
- 1992-03-13 CZ CS92758A patent/CZ283448B6/cs not_active IP Right Cessation
- 1992-03-13 MX MX9201126A patent/MX9201126A/es unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB809179A (en) * | 1956-02-18 | 1959-02-18 | Moenus Maschf | A machine for pressing, smoothing or embossing leather |
FR2325718A1 (fr) * | 1975-09-29 | 1977-04-22 | Dokoupil Jiri | Procede et dispositif pour assouplir ou amollir du cuir |
EP0368233A2 (de) * | 1988-11-07 | 1990-05-16 | Giocondo Baggio | Maschine zum Geschmeidigmachen von Leder |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996015275A2 (en) * | 1994-11-15 | 1996-05-23 | Officine Di Cartigliano S.P.A. | Semiautomatic feeder line particularly for setting-out/drying machines, vacuum-driers, and stakers for industrial hides |
WO1996015275A3 (en) * | 1994-11-15 | 1996-06-27 | Cartigliano Off Spa | Semiautomatic feeder line particularly for setting-out/drying machines, vacuum-driers, and stakers for industrial hides |
US6112559A (en) * | 1995-11-06 | 2000-09-05 | Emilio Buttazzi | Hide stretching apparatus |
US5970754A (en) * | 1996-09-13 | 1999-10-26 | Officine Di Cartigliano S.P.A. | Device for continuously adjusting the working pressure for staking machines with beating plates |
EP1281893A2 (de) * | 2001-08-02 | 2003-02-05 | Hein, Lehmann Trenn- und Fördertechnik GmbH | Schubkurbeltrieb |
EP1281893A3 (de) * | 2001-08-02 | 2004-02-11 | Hein, Lehmann Trenn- und Fördertechnik GmbH | Schubkurbeltrieb |
US8776554B2 (en) * | 2012-11-21 | 2014-07-15 | Lear Corporation | Method of processing leather material |
CN104894301A (zh) * | 2015-06-29 | 2015-09-09 | 南通思瑞机器制造有限公司 | 一种新型振荡拉软机 |
Also Published As
Publication number | Publication date |
---|---|
ITVI910040A0 (it) | 1991-03-14 |
SK279983B6 (sk) | 1999-06-11 |
JPH0578700A (ja) | 1993-03-30 |
KR100198894B1 (ko) | 1999-06-15 |
EP0504579B1 (de) | 1995-06-07 |
ITVI910040A1 (it) | 1992-09-14 |
CZ283448B6 (cs) | 1998-04-15 |
CS75892A3 (en) | 1992-10-14 |
CN1028766C (zh) | 1995-06-07 |
YU25092A (sh) | 1995-10-03 |
DE69202793T2 (de) | 1995-11-30 |
KR920018230A (ko) | 1992-10-21 |
BR9200817A (pt) | 1992-11-17 |
DE69202793D1 (de) | 1995-07-13 |
YU48604B (sh) | 1998-12-23 |
TW203101B (de) | 1993-04-01 |
JP3124817B2 (ja) | 2001-01-15 |
CN1064894A (zh) | 1992-09-30 |
ES2073198T3 (es) | 1995-08-01 |
IT1247078B (it) | 1994-12-12 |
MX9201126A (es) | 1992-10-01 |
ATE123534T1 (de) | 1995-06-15 |
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