CA1103096A - Drum seaming machine with column positioning and stroke limiting arrangement - Google Patents
Drum seaming machine with column positioning and stroke limiting arrangementInfo
- Publication number
- CA1103096A CA1103096A CA333,889A CA333889A CA1103096A CA 1103096 A CA1103096 A CA 1103096A CA 333889 A CA333889 A CA 333889A CA 1103096 A CA1103096 A CA 1103096A
- Authority
- CA
- Canada
- Prior art keywords
- column
- stripper
- bed
- drum
- 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.)
- Expired
Links
Classifications
-
- 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
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
- B21D51/30—Folding the circumferential seam
- B21D51/32—Folding the circumferential seam by rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Jigs For Machine Tools (AREA)
- Automatic Assembly (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A double-ended, drum seaming machine--which includes spaced, bed-supported columns carrying drum-engaging rotary chucks and drum seaming units--embodying a structural arrange-ment, in association with included stripper rods, which pro-vides for pre-adjustment of the relative positions of the columns on the bed (according to drum length), and for pre-determination of the limited-travel, working stroke of the in-dividual columns between a retracted clearance position and an advanced position with the corresponding rotary chuck in drum head engagement.
A double-ended, drum seaming machine--which includes spaced, bed-supported columns carrying drum-engaging rotary chucks and drum seaming units--embodying a structural arrange-ment, in association with included stripper rods, which pro-vides for pre-adjustment of the relative positions of the columns on the bed (according to drum length), and for pre-determination of the limited-travel, working stroke of the in-dividual columns between a retracted clearance position and an advanced position with the corresponding rotary chuck in drum head engagement.
Description
BACKG OUND OF THE INVENTION:
FIELD OF THE INVENTION
In the prior art, double-ended, drum seaming machines are known in sundry embodiment~ and wherein spaced columns are ad-justably mounted on a bed to properly space them to accommodate, between the columns and the working part~ thereon, drums of different lengths, and the columns each being power recipro-cated through a limited-travel, working stroke be~ween a re-tracted clearance position and an advanced position for engage-ment R the drum by such working parts. In the prior machines,the structural arrangements included to permit adjustment of the columns on the bed, and to provide for such limited-travel, working stroke of the individual columns, were--in many cases--too complex and costly or the necessary adjustments were in-convenient and time consuming to perform. The present invention was conceived in a succes~ful effort to overcome--in a machine of the type described--such deficiencies.
THE PRIOR ART
United states Patent No. 4,004,529 i8 exemplary of the prior art known to applicants.
SUMMARY aF THE INVENTION-. The present invention provides, as an important obJect, a drum seaming machine which embodies a novel structural arrangement--in association with included stripper rods--for ready and convenient pre-adjustment of the relative positions of the power-reciprocated columns on the ~` supporting bed (according to drum length), and for pre-determin-ation of the limited-travel, working stroke of the individual columns between a retracted clearance position and an advanced working position with the included column-mounted chuck in drum head engagement preparatory to initiation of the ~eaming oper-ations. The structural arrangement provided, to attain the `~
~3~
, above ob~ective~, is relatively simple and yet functionally effec~ive.
The present invention provides, as another important ob-~ect, a drum seam~ng machine, as above, wherein the normally stationary stripper rods--corresponding to each column--pass, with a running fit, through the latter; and said structural arrangement includes spaced stop elements on the rods adapted to engage with the column and limit the working stroke thereof to a predetermined, relati~ely ~hort distance.
me present invention provides9 as still another ob~ect, a drum seaming machine, as above, wherein the stripper rods are ad~ustably secured in connection with the bed, whereby--upon longitudinal ad1ustment of the stripper rods, corresponding pre-ad~ustment of the column on the bed is effected in a ready and facile manner, and for the purpose of accommodating drums of different lengths.
The present invention provides, as a further object, a drum seaming machine with the described improvements which is designed for ea~e and economy o manufacture The present invention provides, a~ a still further ob~ect, a practical, reliable, and durable drum seaming machine with the described improvements, and one which i8 exceedingly ef-fective for the purpose for which it i8 designed.
BRIEF DESCRIPTION OF THE DRAWINGS: Fig. 1 is a side elevation, :
partly in outline and omitting the drum elevating cradle unit, of a double-ended, drum seaming machine embodying the pxesent invention.
Fig. 2 is an enlarged, fragmentary, sectional plan view taken substantially on line 2-2 of Fig. 1.
Fig. 3 is a transverse, vertical section taken sub- ;
stantially on line 3-3 of Fig. 2.
FIELD OF THE INVENTION
In the prior art, double-ended, drum seaming machines are known in sundry embodiment~ and wherein spaced columns are ad-justably mounted on a bed to properly space them to accommodate, between the columns and the working part~ thereon, drums of different lengths, and the columns each being power recipro-cated through a limited-travel, working stroke be~ween a re-tracted clearance position and an advanced position for engage-ment R the drum by such working parts. In the prior machines,the structural arrangements included to permit adjustment of the columns on the bed, and to provide for such limited-travel, working stroke of the individual columns, were--in many cases--too complex and costly or the necessary adjustments were in-convenient and time consuming to perform. The present invention was conceived in a succes~ful effort to overcome--in a machine of the type described--such deficiencies.
THE PRIOR ART
United states Patent No. 4,004,529 i8 exemplary of the prior art known to applicants.
SUMMARY aF THE INVENTION-. The present invention provides, as an important obJect, a drum seaming machine which embodies a novel structural arrangement--in association with included stripper rods--for ready and convenient pre-adjustment of the relative positions of the power-reciprocated columns on the ~` supporting bed (according to drum length), and for pre-determin-ation of the limited-travel, working stroke of the individual columns between a retracted clearance position and an advanced working position with the included column-mounted chuck in drum head engagement preparatory to initiation of the ~eaming oper-ations. The structural arrangement provided, to attain the `~
~3~
, above ob~ective~, is relatively simple and yet functionally effec~ive.
The present invention provides, as another important ob-~ect, a drum seam~ng machine, as above, wherein the normally stationary stripper rods--corresponding to each column--pass, with a running fit, through the latter; and said structural arrangement includes spaced stop elements on the rods adapted to engage with the column and limit the working stroke thereof to a predetermined, relati~ely ~hort distance.
me present invention provides9 as still another ob~ect, a drum seaming machine, as above, wherein the stripper rods are ad~ustably secured in connection with the bed, whereby--upon longitudinal ad1ustment of the stripper rods, corresponding pre-ad~ustment of the column on the bed is effected in a ready and facile manner, and for the purpose of accommodating drums of different lengths.
The present invention provides, as a further object, a drum seaming machine with the described improvements which is designed for ea~e and economy o manufacture The present invention provides, a~ a still further ob~ect, a practical, reliable, and durable drum seaming machine with the described improvements, and one which i8 exceedingly ef-fective for the purpose for which it i8 designed.
BRIEF DESCRIPTION OF THE DRAWINGS: Fig. 1 is a side elevation, :
partly in outline and omitting the drum elevating cradle unit, of a double-ended, drum seaming machine embodying the pxesent invention.
Fig. 2 is an enlarged, fragmentary, sectional plan view taken substantially on line 2-2 of Fig. 1.
Fig. 3 is a transverse, vertical section taken sub- ;
stantially on line 3-3 of Fig. 2.
-2-k~
Fig. 4 i~ a transverse, vertical section taken sub-stantially on line 4-4 of Fig. 2.
Fig. 5 is a fragmentary, sectional plan view ~aken sub-stantially on line 5-5 of Fig. 4.
Fig. 6 is a vertical, end elevation taken substantially on line 6-6 of Fig. 4.
Fig. 7 is a fragmentary, vertical, sectional elevation taken substantially on line 7-7 of Fig. 2.
DESCRIPTION OF THE PREFER~ED EMBODIMENT: Referring now more particularly to the drawings and to the characters of reference marked thereon, the present invention is directed to a double-ended, drum seaming machine (shown in somewhat greater detail in co-pending application Serial No. 33 3, 4IS~ , filed Q ~4g ~S t ~, Iq ? 9 , embodying a longitudinal bed l which supports heavy duty columns 2 in spaced relation and for re-ception therebetween of a horizontal axis drum 3 supported in position, for drum head seaming, by a cradle unit ~not shown).
me columns 2 are mounted on the bed by slides 4 which permit the columns to be ad~usted i~ spacing and to accommodate there-between drums of different lengths. Such adjustment of each ofthe columns is efected by a ~orizontal, longitudinally extend-~ng, double-acting power cylinder S connected between a fixed tailstock 6 on the bed, and the corresponding column 2.
Ad~acent the working faces thereof, the individual columns each carry a circular chuck 7 ~ournaled on the column and driven, in suitable fashion, from a main shaft 8 in the bed 1 lengthwise thereof and powered by an endless drive 9 from an electric motor 10 mounted atop a related tailstock 6.
Above the driven ehuck 7 of each column 2, the latter : 30 supports a drum seaming unit indicated generally at 11 and shown in greater detail in the aforesaid co-pending application;
: -3-:
~ ~ 3i~
such drum seaming unit including a rotary cam 12 driven, in timed relation to the chuck 7, from the main shaft 8 and by means shown only in part at 13 and which i8 an endless timing cha~n.
Each chuc~ 7 i8 peripherally embraced, at least in the lower half thereof, by a drum stripper 14 disposed in a trans-verse, vertical plane; such stripper being substantially con-ventional. me stripper 14, corresponding to each column, is fixed on and supported by longitudinal, transversely spaced stripper rods 15 which extend from the stripper 14 in a rear-ward direction to normally fixed but releasable connection with the tailstock 6 by means of a clamping unit indicated generally at 16. Con~equently, when--in worklng position, pre-set as later described--each column 2 is retrac$ed by its power cylinder 5, ~he related stripper 14 relatively advances a ; short distance and then pro~ects slightly ahead of the chuck 7 to strip the drum (after seaming) from such chuck. See Fig. 1.
Conversely, when each column 2 is advanced by its power cylinder 5, the related stripper 14 pro~ects sligh~ly behind the chuck to permit the latter to enter the near head, of the drum, preparatory to initiation o~ the seaming operation on a drum head engaged on and spanning between the chucks 7.
The clamping unit 16 corresponding to each set or pair of stripper rods 15 (i.e., the set at each end of the machine) comprises the following:
A cross member 17 is included with the tailstock 6, and at each end such cross member is formed with an integral, split-type clamp 17 having a bore 18 through which the related stripper rod 15 extends; each clamp 17 being vertically and longitudinally split, as at 19, centrally above the correspond-ing bore 18, and, additionally, includes an integral ear 20 :;
Fig. 4 i~ a transverse, vertical section taken sub-stantially on line 4-4 of Fig. 2.
Fig. 5 is a fragmentary, sectional plan view ~aken sub-stantially on line 5-5 of Fig. 4.
Fig. 6 is a vertical, end elevation taken substantially on line 6-6 of Fig. 4.
Fig. 7 is a fragmentary, vertical, sectional elevation taken substantially on line 7-7 of Fig. 2.
DESCRIPTION OF THE PREFER~ED EMBODIMENT: Referring now more particularly to the drawings and to the characters of reference marked thereon, the present invention is directed to a double-ended, drum seaming machine (shown in somewhat greater detail in co-pending application Serial No. 33 3, 4IS~ , filed Q ~4g ~S t ~, Iq ? 9 , embodying a longitudinal bed l which supports heavy duty columns 2 in spaced relation and for re-ception therebetween of a horizontal axis drum 3 supported in position, for drum head seaming, by a cradle unit ~not shown).
me columns 2 are mounted on the bed by slides 4 which permit the columns to be ad~usted i~ spacing and to accommodate there-between drums of different lengths. Such adjustment of each ofthe columns is efected by a ~orizontal, longitudinally extend-~ng, double-acting power cylinder S connected between a fixed tailstock 6 on the bed, and the corresponding column 2.
Ad~acent the working faces thereof, the individual columns each carry a circular chuck 7 ~ournaled on the column and driven, in suitable fashion, from a main shaft 8 in the bed 1 lengthwise thereof and powered by an endless drive 9 from an electric motor 10 mounted atop a related tailstock 6.
Above the driven ehuck 7 of each column 2, the latter : 30 supports a drum seaming unit indicated generally at 11 and shown in greater detail in the aforesaid co-pending application;
: -3-:
~ ~ 3i~
such drum seaming unit including a rotary cam 12 driven, in timed relation to the chuck 7, from the main shaft 8 and by means shown only in part at 13 and which i8 an endless timing cha~n.
Each chuc~ 7 i8 peripherally embraced, at least in the lower half thereof, by a drum stripper 14 disposed in a trans-verse, vertical plane; such stripper being substantially con-ventional. me stripper 14, corresponding to each column, is fixed on and supported by longitudinal, transversely spaced stripper rods 15 which extend from the stripper 14 in a rear-ward direction to normally fixed but releasable connection with the tailstock 6 by means of a clamping unit indicated generally at 16. Con~equently, when--in worklng position, pre-set as later described--each column 2 is retrac$ed by its power cylinder 5, ~he related stripper 14 relatively advances a ; short distance and then pro~ects slightly ahead of the chuck 7 to strip the drum (after seaming) from such chuck. See Fig. 1.
Conversely, when each column 2 is advanced by its power cylinder 5, the related stripper 14 pro~ects sligh~ly behind the chuck to permit the latter to enter the near head, of the drum, preparatory to initiation o~ the seaming operation on a drum head engaged on and spanning between the chucks 7.
The clamping unit 16 corresponding to each set or pair of stripper rods 15 (i.e., the set at each end of the machine) comprises the following:
A cross member 17 is included with the tailstock 6, and at each end such cross member is formed with an integral, split-type clamp 17 having a bore 18 through which the related stripper rod 15 extends; each clamp 17 being vertically and longitudinally split, as at 19, centrally above the correspond-ing bore 18, and, additionally, includes an integral ear 20 :;
3~:~
upstanding to the out~ide of ~he split. The ears are alined laterally of the machine, and a cross rod 21 spans between and passes through coaxial bores in said ears.
At one end thereof, the cross rod 21 is secured to a hori-zontal, upwaxdly openlng yoke 22 which straddle~ a vertical block 23 fixedly secured to the adjacent ear 20 by bolts 24 and spacer collars 25. A transverse shat 26 spans between and is ~ournaled in the sides of yoke 22; such shaft--intermediate its ends and within the confines of the block~-being formed with an eccentric section 27 received in a bore 28 in said block. At one end, and beyond the yoke 22, the transverse shaft 26 i8 fitted with a radial hand lever 29 movable from a horizontal, outwardly projecting position to an upright po-sitionO A pln and stop array, indicated generally at 30, is $
: provided at the other exposed end of the transverse shaft 26 for the purpose of limiting the hand lever 29 against movement beyond the above positions.
; At the other end (i~e., the end opposite the above-described ;~ yoke, block, and transverse shaft assembly), the cross rod 21 is provided with a threaded-on nut 31 which bears againQt an inwardly opening cap 32 which surrounds the cross rod 21 and embraces a plurality of heavy-duty spring washers 33, on said rod~ disposed between such cap and the ad~acent ear 20.
When the hand lever 29 is manually swung from its hori-zontal, outwardly projecting position to an upright position, the eccentric section 27 of transverse shaft 26 turns in boxe 28 and the shaft ends act to cause slight but forceful motion of yoke 22 relative to the fixed block 23. Such relative motion is translated into an axially outward load or tension on the cross rod 21, and which tension--after compression of the spring washers 33--imposes a laterally inward force on both of the ears 20 and wh~ch force tends to narrow the splits 19, with the result that the clamps 17 grip both stripper rods 15 and hold the same against longitudinal movement. me stripper rods 15 are thu~ clampingly held in a fixed position during normal operation of the can seaming machine.
Both of the parallel stripper rods 15, at each end of the machine, extend through the corresponding column 2 loosely or with a running fit, and-dwithin the column--each stripper rod i~ provided with a threaded-on front stop nut 34, while a rear stop nut 35 i8 threaded on each stripper rod 15 rearwardly of column 2. Thus, the rear wall 36 of said column--in a thickened portion thereof--is disposed between the front stop nut 34 and rear ~top nut 35 on the individual stripper rods 15.
- Each of the stop nuts 34-35 includes, at the end adjacent the rear wall 36, a shock-absorbing collar 37--of rubber or the like--faced by a retention ring 38~ while at the opposite end each of said nuts 34-35 is provided with a locking ring 39 which holds the related nut in any ad~usted position on its stripper rod 15.
When the drum seaming machine is in operation, operation of each power cylinder 5--to extend its piston rod 40--causes the connected column 2 to advance a distance limited by en-gagement of the rear wall 36 of said column with the front stop nuts 34; such advance of the column 2 thrusting the rotary chuck 7 into the head 41 of the alined drum 3, whence the re-lated seaming unit 11 i8 brought into play to produce the seam 42. Thereafter, operation of the power cylinder to re-tract the piston rod 40 causes corresponding retro-motion of the column and which draws the rotary chuck 7 away from the drum, and at the same time the ~tationary stripper 14 frees the drum head from the chuck. Such retro-motion of the column . .
~ 3~
is limited by engagement of the rear stop nuts 35 with the rear wall 36 of ~aid column. From the above it will be understood that--with each cycle o operation of the drum seaming machine--the piston rod 40 i8 once reciprocated to impart corresponding advance and retraction of the corresponding column 2 through a working stroke of limited-travel, and which stroke is prede-termined by the adjusted position o~ the front and rear stop nuts 34-35 on the normal~y stationary stripper rod~ 15. While ; the arrangement is quite simple structurally, it provides for an effective and accurate limited-travel stroke of each column, and yet a stroke can be readily ad~usted to accommodate, for example, drum heads of varying depths.
Beyond their purpose to limit column travel, as above, the stop nuts 34-35 on the stripper rods 15 have another purpose.
More partlcularly, prior to operation of the drum seaming - machine, each column 2 is pre-ad~u~ted longitudinally on the bed and as necessitated by the length of the drums to be handled in the machine; such pre-adjustment being accomplished readily, easily, and quickly, as ~ollows:
Firstly, the clamping unit 16 corresponding to each column i~ quick-relea9ed by manual movement of the hand lever 29 to a "down" outwardly pro~ecting position, and which releases both of the clamps 17. Secondly, the power cyl~nder i8 actuated to cause advance (or retraction, as the case may be~ of the column on the bed and to the position requisite for the next drum seam-ing operation. Lastly, after such pre-adjustment of the column ha8 occurred, and at which time the stripper rods 15 have slid-ably moved in the clamps 17, ~aid clamp~ are re-engaged (by moving hand lever 29 back to its upright position) whereby the clamping unit 16 "lock~" the column in said pre-ad~usted po-sltion.
3 ~ ~
From the foregoing description, it will be readily seen . that there has been produced such a drum ~eaming machine with the described improvements as substantially fulfills the ob-~ects of the invention as set forth herein.
" 10 ~,, ,
upstanding to the out~ide of ~he split. The ears are alined laterally of the machine, and a cross rod 21 spans between and passes through coaxial bores in said ears.
At one end thereof, the cross rod 21 is secured to a hori-zontal, upwaxdly openlng yoke 22 which straddle~ a vertical block 23 fixedly secured to the adjacent ear 20 by bolts 24 and spacer collars 25. A transverse shat 26 spans between and is ~ournaled in the sides of yoke 22; such shaft--intermediate its ends and within the confines of the block~-being formed with an eccentric section 27 received in a bore 28 in said block. At one end, and beyond the yoke 22, the transverse shaft 26 i8 fitted with a radial hand lever 29 movable from a horizontal, outwardly projecting position to an upright po-sitionO A pln and stop array, indicated generally at 30, is $
: provided at the other exposed end of the transverse shaft 26 for the purpose of limiting the hand lever 29 against movement beyond the above positions.
; At the other end (i~e., the end opposite the above-described ;~ yoke, block, and transverse shaft assembly), the cross rod 21 is provided with a threaded-on nut 31 which bears againQt an inwardly opening cap 32 which surrounds the cross rod 21 and embraces a plurality of heavy-duty spring washers 33, on said rod~ disposed between such cap and the ad~acent ear 20.
When the hand lever 29 is manually swung from its hori-zontal, outwardly projecting position to an upright position, the eccentric section 27 of transverse shaft 26 turns in boxe 28 and the shaft ends act to cause slight but forceful motion of yoke 22 relative to the fixed block 23. Such relative motion is translated into an axially outward load or tension on the cross rod 21, and which tension--after compression of the spring washers 33--imposes a laterally inward force on both of the ears 20 and wh~ch force tends to narrow the splits 19, with the result that the clamps 17 grip both stripper rods 15 and hold the same against longitudinal movement. me stripper rods 15 are thu~ clampingly held in a fixed position during normal operation of the can seaming machine.
Both of the parallel stripper rods 15, at each end of the machine, extend through the corresponding column 2 loosely or with a running fit, and-dwithin the column--each stripper rod i~ provided with a threaded-on front stop nut 34, while a rear stop nut 35 i8 threaded on each stripper rod 15 rearwardly of column 2. Thus, the rear wall 36 of said column--in a thickened portion thereof--is disposed between the front stop nut 34 and rear ~top nut 35 on the individual stripper rods 15.
- Each of the stop nuts 34-35 includes, at the end adjacent the rear wall 36, a shock-absorbing collar 37--of rubber or the like--faced by a retention ring 38~ while at the opposite end each of said nuts 34-35 is provided with a locking ring 39 which holds the related nut in any ad~usted position on its stripper rod 15.
When the drum seaming machine is in operation, operation of each power cylinder 5--to extend its piston rod 40--causes the connected column 2 to advance a distance limited by en-gagement of the rear wall 36 of said column with the front stop nuts 34; such advance of the column 2 thrusting the rotary chuck 7 into the head 41 of the alined drum 3, whence the re-lated seaming unit 11 i8 brought into play to produce the seam 42. Thereafter, operation of the power cylinder to re-tract the piston rod 40 causes corresponding retro-motion of the column and which draws the rotary chuck 7 away from the drum, and at the same time the ~tationary stripper 14 frees the drum head from the chuck. Such retro-motion of the column . .
~ 3~
is limited by engagement of the rear stop nuts 35 with the rear wall 36 of ~aid column. From the above it will be understood that--with each cycle o operation of the drum seaming machine--the piston rod 40 i8 once reciprocated to impart corresponding advance and retraction of the corresponding column 2 through a working stroke of limited-travel, and which stroke is prede-termined by the adjusted position o~ the front and rear stop nuts 34-35 on the normal~y stationary stripper rod~ 15. While ; the arrangement is quite simple structurally, it provides for an effective and accurate limited-travel stroke of each column, and yet a stroke can be readily ad~usted to accommodate, for example, drum heads of varying depths.
Beyond their purpose to limit column travel, as above, the stop nuts 34-35 on the stripper rods 15 have another purpose.
More partlcularly, prior to operation of the drum seaming - machine, each column 2 is pre-ad~u~ted longitudinally on the bed and as necessitated by the length of the drums to be handled in the machine; such pre-adjustment being accomplished readily, easily, and quickly, as ~ollows:
Firstly, the clamping unit 16 corresponding to each column i~ quick-relea9ed by manual movement of the hand lever 29 to a "down" outwardly pro~ecting position, and which releases both of the clamps 17. Secondly, the power cyl~nder i8 actuated to cause advance (or retraction, as the case may be~ of the column on the bed and to the position requisite for the next drum seam-ing operation. Lastly, after such pre-adjustment of the column ha8 occurred, and at which time the stripper rods 15 have slid-ably moved in the clamps 17, ~aid clamp~ are re-engaged (by moving hand lever 29 back to its upright position) whereby the clamping unit 16 "lock~" the column in said pre-ad~usted po-sltion.
3 ~ ~
From the foregoing description, it will be readily seen . that there has been produced such a drum ~eaming machine with the described improvements as substantially fulfills the ob-~ects of the invention as set forth herein.
" 10 ~,, ,
Claims (19)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A drum seaming machine including a bed, a column supported by and movable along the bed, a drum-engaging chuck journaled on the column adjacent one face thereof, a tailstock on the bed spaced from the opposite face of the column, power means connected between the tailstock and column to reciprocate the latter on the bed, a drum stripper associated with the chuck, at least one longitudinal stripper rod fixed at one end to the stripper and thence extending toward and normally fixed in connection with the tailstock, and column stop means on the stripper rod operative in contact with the column to limit reciprocal travel thereof between a pre-selected ad-vanced position and a retracted position.
2. A machine, as in claim 1, in which the column stop means includes stop members in normally fixed, longitudinally spaced relation on the stripper rod, and said stop members be-ing positioned to individually contact the column in stop re-lation upon the column reaching a corresponding one of said positions.
3. A machine, as in claim 2, in which the stripper rod extends through a wall of the column, and said stop members being disposed with said wall therebetween whereby wall con-tact by said stop members effects said limit of travel of the column.
4. A machine, as in claim 3, in which the stop members are stop nuts threaded on the stripper rod in normally fixed but adjustable relation.
5. A machine, as in claim 4, in which each stop nut in-cludes a cushion collar which provides shock absorption when such stop nut contacts said wall of the column.
6. A machine, as in claim 1, including quick-release clamping means in the connection between the stripper rod and the tailstock; said quick-release clamping means permitting, when released, movement of the stripper rod and column rela-tive to the bed a distance greater than said limit of travel whereby the column may be pre-positioned on the bed.
7. A machine, as in claim 6, in which said quick-release clamping means includes a clamp through which the stripper rod extends, the clamp including a turnable eccentric which normally maintains the clamp in rod-gripping engagement, and a hand lever connected to the eccentric and adapted for movement to a position in which the eccentric is turned and releases the clamp.
8. A drum seaming machine including a bed, a column supported by and movable along the bed, a drum engaging chuck journaled on the column adjacent one face thereof, a tailstock on the bed spaced from the opposite face of the column, power means connected between the tailstock and column to recipro-cate the latter on the bed, a drum stripper associated with the chuck, a pair of transversely spaced, parallel, longitudinal stripper rods fixed at one end to the stripper and thence ex-tending toward the tailstock, means securing the stripper rods in connection with the tailstock in normally fixed relation, and column stop means on the stripper rods operative in contact with the column to limit reciprocal travel thereof between a pre-selected advanced position and a retracted position.
9. A machine, as in claim 8, in which the column stop means includes stop members in normally fixed, longitudinally spaced relation on each stripper rod, the corresponding stop members on said rods being laterally alined, and said stop members on each rod being positioned with a fixed part of the column therebetween.
10. A machine, as in claim 9, in which said fixed part of the column is a wall thereof; the stripper rods extending through the column, with said wall between the stop members on each rod.
11. A drum seaming machine including a bed, a column supported by and movable along the bed, a drum-engaging chuck journaled on the column adjacent one face thereof, a tailstock on the bed spaced from the opposite face of the column, power means connected between the tailstock and column to recipro-cate the latter on the bed, a drum stripper associated with the chuck, a pair of transversely spaced, parallel, longi-tudinal stripper rods fixed at one end to the stripper and thence extending toward the tailstock, means securing the stripper rods in connection with the tailstock in normally fixed relation, the stripper rods passing through the column, and a pair of stop nuts threaded on each stripper rod in longi-tudinally spaced relation and with a wall of the column dis-posed therebetween, corresponding stop nuts of the pairs being laterally alined and operative in contact with said wall to limit reciprocal travel of the column between a pre-selected advanced position and a retracted position.
12. A machine, as in claim 11, in which each stop nut includes a cushion collar which provides shock absorption when such nut contacts said wall of the column.
13. A drum seaming machine including a bed, a column supported by and movable along the bed, a drum-engaging chuck journaled on the column adjacent one face thereof, a tailstock on the bed spaced from the opposite face of the column, power means connected between the tailstock and column to reciprocate the latter on the bed, a drum stripper associated with the chuck, a pair of transversely spaced, parallel, longitudinal stripper rods fixed at one end to the stripper and thence ex-tending toward the tailstock, quick-releasable clamping means securing the stripper rods in connection with the tailstock in normally fixed relation, and stop means operative to limit reciprocal travel of the column between a pre-selected advanced position and a retracted position.
14. A machine, as in claim 13, in which the quick-releas-able clamping means includes clamps corresponding to and normally clamingly engaging the stripper rods, and means to simultan-ously release said clamps.
15. A machine, as in claim 14, in which said clamp-re-leasing means includes a hand lever adapted for movement to a position in which said clamps are released.
16. A machine, as in claim 13, in which the quick-releas-able clamping means includes clamps engaging the stripper rods, the clamps being of split-type and each having a bore through which the corresponding stripper rod extends and a projecting ear disposed to the outside o the split, the ears being alined laterally of the machine and having coaxial bores, a cross rod spanning between the ears and extending through the bores therein, stop means on one end of the cross rod engaging the adjacent ear, and releasable means between the other end of the cross rod and the related ear operative to normally impose tension on the cross rod whereby to then urge the ears toward each other and cause the clamps to grip the stripper rods.
17. A machine, as in claim 16, in which said releasable means includes a turnable eccentric which normally maintains the cross rod under tension, and a hand lever connected to the eccentric and adapted for movement to a position in which the eccentric is turned and relieves the tension on the cross rod.
18. A machine, as in claim 16, in which said releasable means includes a yoke on said other end of the cross rod, a block fixed to said related ear and disposed in the yoke, a transverse shaft journaled in and spanning the yoke, said transverse shaft having an eccentric section extending in turnable relation in the block, the eccentric normally being in a position with the transverse shaft imposing, through the yoke, said tension on the cross rod, and a hand lever on the cross shaft for movement to a position in which the eccentric is turned and said tension is relieved.
19. A machine, as in claim 16, in which said stop means includes a nut on the cross rod, and a heavy-duty spring washer on the rod between the nut and said adjacent ear.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US21,027 | 1979-03-16 | ||
| US06/021,027 US4218983A (en) | 1979-03-16 | 1979-03-16 | Single-cam actuated drum seaming mechanism |
| US06/026,363 US4218984A (en) | 1979-04-02 | 1979-04-02 | Drum seaming machine with column positioning and stroke limiting arrangement |
| US26,363 | 1979-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1103096A true CA1103096A (en) | 1981-06-16 |
Family
ID=26694172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA333,889A Expired CA1103096A (en) | 1979-03-16 | 1979-08-16 | Drum seaming machine with column positioning and stroke limiting arrangement |
Country Status (4)
| Country | Link |
|---|---|
| CA (1) | CA1103096A (en) |
| DE (2) | DE2950814A1 (en) |
| FR (1) | FR2451237A1 (en) |
| NL (1) | NL7907847A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU570007B2 (en) * | 1982-08-04 | 1988-03-03 | K D Binnie Engineering Pty Ltd | Joining an end plate to a hollow body |
| EP0377219B1 (en) * | 1989-01-04 | 1993-03-03 | Dtm Drucklufttechnik Maschinenbau Gmbh | Device for causing the edges of metallic kegs to bulge |
| DE4219622A1 (en) * | 1991-10-16 | 1993-04-22 | Beierling Annette | Former for hollow workpieces, eg barrels - has two axis-parallel forming tools, and forming roller with drive, located centrally between tools |
-
1979
- 1979-08-16 CA CA333,889A patent/CA1103096A/en not_active Expired
- 1979-10-25 NL NL7907847A patent/NL7907847A/en not_active Application Discontinuation
- 1979-12-17 DE DE19792950814 patent/DE2950814A1/en not_active Withdrawn
- 1979-12-17 DE DE19792950813 patent/DE2950813A1/en not_active Withdrawn
-
1980
- 1980-03-14 FR FR8005832A patent/FR2451237A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| NL7907847A (en) | 1980-09-18 |
| DE2950814A1 (en) | 1980-09-18 |
| FR2451237A1 (en) | 1980-10-10 |
| DE2950813A1 (en) | 1980-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1103096A (en) | Drum seaming machine with column positioning and stroke limiting arrangement | |
| CN210081241U (en) | Machine tool clamp with anti-crushing function for mechanical automation | |
| CN109175967A (en) | A kind of improved press mounting of car wheel device | |
| CN217192374U (en) | Automatic metal forging device of upset | |
| KR102365048B1 (en) | Differential case inner and outer diameter clamp jig system for lathe cutting | |
| US4218984A (en) | Drum seaming machine with column positioning and stroke limiting arrangement | |
| US5147085A (en) | Cold pressure welding method and machine | |
| CN112846501B (en) | Motor rotor welding jig | |
| US2451222A (en) | Coil former | |
| JP3583172B2 (en) | Automotive wheel tire fitting device | |
| CN210115690U (en) | Clamp for processing cylinder head and rod head of oil cylinder | |
| CN204339201U (en) | Shoes drum-type automatic welding machine | |
| CN210877335U (en) | Ring rolling mill with strong stability | |
| CN213135672U (en) | Novel tool clamp for welding of motor tricycle | |
| CN219484100U (en) | Feeding structure of rotary forging machine | |
| CN211248582U (en) | Coupling stock cutting band sawing machine | |
| CN219426071U (en) | Steel pipe welding machine | |
| CN216883842U (en) | Sliding type clamping tool | |
| CN215238250U (en) | Slotting tool suitable for parts with different diameters and holes | |
| CN213135274U (en) | Efficient open-close type rim cutting sawing machine | |
| CN210209012U (en) | Seam welder | |
| CN218926701U (en) | Double-cutter mowing disc welding tool | |
| SU527231A1 (en) | Clamping head for straightening machine | |
| CN210412035U (en) | Novel pneumatic bending device for retractable heating pipe | |
| SU542581A1 (en) | Device for fastening the tool to the body of the striker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |