CA1288291C - Apparatus for supporting a body for reciprocal movement - Google Patents
Apparatus for supporting a body for reciprocal movementInfo
- Publication number
- CA1288291C CA1288291C CA000510345A CA510345A CA1288291C CA 1288291 C CA1288291 C CA 1288291C CA 000510345 A CA000510345 A CA 000510345A CA 510345 A CA510345 A CA 510345A CA 1288291 C CA1288291 C CA 1288291C
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- CA
- Canada
- Prior art keywords
- ram
- roller
- frame
- contact
- planar
- Prior art date
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Abstract
Abstract A support for a reciprocating ram wherein a plurality of rollers having angularly related generally cylindrical support surfaces are mounted in a fixed location and the ram is provided with planar surfaces having the same corresponding angular relationship wherein the weight of the ram is utilized to maintain the planar surfaces in contact with the generally cylindrical support surfaces during reciprocal movement of the ram with dampening means being provided to minimize vibrations. An addi-tional force is applied to the ram to ensure a rolling relationship between the planar and generally cylindrical surfaces at all times during the reciprocal movement.
Description
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APPA~ATUS F~ SUPPORTING
~ BODY FOR RECIPROCAL MOV~MENT
Field of Invention ~ his invention relates to providing a support for an elongated body so that the elongated body may be subjected to reciprocating movement and more particularly to a ~ethod for supporting a ram for reciprocating movement such as a ram used in machines ~or forming metal such as a can forming machine.
Backqround of the Invention ..
There are many different processes and machines which utilize a body that is reciprocated bac~ and forth to perform work. There have always been problems in supporting such a reciprocating b~dy, particularly when ~he reciprocation is in a~horizontal direction. This problem exists in some of the machines used to form can ~odies.
A typical method manufacturing two piece cans consists of making a circular blank and then drawing the blank to form a shallow cup. ~he cup is fed in position ahead of a punch attached to the ram, and then is ormed by the ram through a redraw die and a plurality of ironing dies located in a tool pack housing.
~ Presses for directing the movement of the ram may ~e : either mechanical or hydraulic~ Exemplary of mechanical machines are U.S. Patent No. 3,702,559 to ~asselbac~ et al. entitled ~Can Bodymaking ~achine~ and ~,696,675 to . Maytag entitled ~Jetal Working Crank an2 Slide ~ress : Mechanismn. T~e ram in the HasselbacX invention slides on guides with an attached cam follower cooperating with cam grooves on a barrel cam. The barrel cam is mounted on a shaft driven by an electri~ motor. The ram in the Maytag invention is mounted on a carriage with wheels which run on the top and bottom surfaces of hardened way ' ~ '~8829~
~ . ` ~ (.
.:
; , . .~,~.
APPA~ATUS F~ SUPPORTING
~ BODY FOR RECIPROCAL MOV~MENT
Field of Invention ~ his invention relates to providing a support for an elongated body so that the elongated body may be subjected to reciprocating movement and more particularly to a ~ethod for supporting a ram for reciprocating movement such as a ram used in machines ~or forming metal such as a can forming machine.
Backqround of the Invention ..
There are many different processes and machines which utilize a body that is reciprocated bac~ and forth to perform work. There have always been problems in supporting such a reciprocating b~dy, particularly when ~he reciprocation is in a~horizontal direction. This problem exists in some of the machines used to form can ~odies.
A typical method manufacturing two piece cans consists of making a circular blank and then drawing the blank to form a shallow cup. ~he cup is fed in position ahead of a punch attached to the ram, and then is ormed by the ram through a redraw die and a plurality of ironing dies located in a tool pack housing.
~ Presses for directing the movement of the ram may ~e : either mechanical or hydraulic~ Exemplary of mechanical machines are U.S. Patent No. 3,702,559 to ~asselbac~ et al. entitled ~Can Bodymaking ~achine~ and ~,696,675 to . Maytag entitled ~Jetal Working Crank an2 Slide ~ress : Mechanismn. T~e ram in the HasselbacX invention slides on guides with an attached cam follower cooperating with cam grooves on a barrel cam. The barrel cam is mounted on a shaft driven by an electri~ motor. The ram in the Maytag invention is mounted on a carriage with wheels which run on the top and bottom surfaces of hardened way ' ~ '~8829~
~ . ` ~ (.
.:
-strips. The wheels are adjusted with a predetermined a~ount of preload to avoid ~lack in the wheels. The carriage i~ ~riven by a crank and connecting rod attached to a parallel motion assembly.
Typically, ~echanically dri~en rams can be driven at high speeds but do not always provide uniform punch speed or ~ravel in a straight line motion, which is critical to co~tinuously producing uniform can walls. The Maytag in~entiDn o~er~omes some of these problems ~ut the mouement of a hëavy carriage upon which the r~m rides inherently requires a significant amount of service time.
Wear items such as bearings ~nd cam followers must constantly be replaced. When such items are replace, the complete ram system must be calibrated and each wheel in~ividually loaded. Regrinding the hardened way strips al~o c~ntributes to the significant ~down time.~ ~educing ~do~wn time" and increasing efficiency is significant in light~of the fact that can bodymachines typically run 24 hours per day and can produce as many as~30 cans per minute.
Summary of the in~ention It is an object of this invention to support a body while permitting reciprocal movement of the body in a horizo~tal direction.
It is another object of this invention to supp~rt a body while permitting leciprocal movement of the ~ody at ; rates of hundreds of times a minute in a horizontal direction with a minimum of body rotation and deviation from a straight line motion.
It is a further object of this inventi~n to support a ~ody while permitting reciprocal ~ovement of the body at rates of hundreds of times a minute in a horizontal direction utilizing the weight of the body to maintain the body in contact with the support.
It i~ a further o~ject of thi~ invention to ~upp~rt a body while permitting reciprocal movement of the body at s~tes of hundreds ~f times a minute in a ~orizontal direction utilizing the weight of the bod~ to maintain the body in contact with the support and to dampen out vibrations caused by the change in direction of movement of the body and/or the work performed by the body.
The foregoing objects are accomplished by this invention by providing ~means for supporting a body while permi~ting reciprocal mo~ement of the ~ody and is particularly directed to means for supporting a recipro-cal ram used in apparatus for forming can bodies. The invention also provides means for dampening vibrations so as to limit damage to the apparatus normally resulting from such vibrations. Also, by minimizing ~ibrations, the can making efficiency is increased.
In the preferred embodiment of the invention a ram cradle assembly an~-a ram having an outer surface shaped to cooperate with angularly relàted surfaces on the ram cradle assembly are substituted for the carriage and hardened way strips ~f the apparatus disclosed in the Maytag patent. The ram cradle assembly comprises at least two spaced apart supports wherein each support c~mprises two angularly related rollers havin~ generally cylindrical surfaces. A ram is provided with two angular-ly related planar surfaces extending in a direction generally parallel *o the lon~itudinal axis of the r~m.
The angular relationship of the planar surfaces is the same as the angular relation5hip of the r~llers so that the ram may be supported by the ram cradle assembly with the planar surfaces on the ram in contact with the cylindrical surfaces of the rollers. The weight of the ram is generally sufficient to insure that the ram remains in contact with the rollers. ~owever, in the preferred embodiment, additional means are provided to apply a force urging the ram into firmer contact with the 9~
rollers. This for~e apply mg means comprises at least two spaced apart rollers, each of which has a qenerally cylindrical surface. The ram is provided with ancther planar surface extending in a direction generally parallel to the longitudlnal axis of the ram and located so that it will be contacted ~y the force applying rollers. Any means, such as a sprin3, may be used to apply the force to the force applying rollers.
In summary, therefore, the present invention may be considered as providing a machine for forming can bodies, the machine comprising a ram supported by a frame for reciprocal movem~nt along a horizontal path, the ralm being provided with support surfaces comprising at least tw~ planar surfaces extending in a direction parallel to the longitudinal axis of the ra~m, the planar surfaces being circumferentially spaced apart from each other, a pair of horizontally spaced apart supporting means each comprising roller means mounted to : the frame, the roller means being in contact with each of the spaced apart planar surfaces, each roller means being mounted for rotation, dampening means affixed to the frame and in contact with the outer - surface of the ram duri~g itg reaiprocal movement along the horizontal path, the can}erlnJ means ~eLng positioned between the roller means and the end of the ram, at least one freely rotatable roller secured to the frame and having a generally cylindrical outer surface, a thir~ planar surface on the ram ex*crding in a direction parallel to the longitudinal axis, an~ m~ans for urging the one freely rotatable roller into conta~t with the third planar surface whereby the means for supporting in conjunction with the means for urging provide straight jc ;~
A
329~
- 4a -horizontal line movement without deviation or rotation during the reciprocal movement of the ram.
~ he dampendna means, in the preferred e=bodim~nt of the invention, comprises a rope packing that is supported on the ram cradle assembly and is in circumferential contact with the adjacent portions of the cuter surface of the ram. m e preferred rope packing comprises Teflon coated cotton or fiberglass rope.
other objects and advantages of the invention will be apparent from the following more partic~lar description of preferred emkodiments as illustrated in the acccmpanying drawings in which like reference characters refer to the same parts throu~hout the various views. The drawings are nct neoe ssarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
Brief Description of the Drawing Fig. 1 is a top plan view of the apparatus of this invention; and Fig. 2 is an end elevation of the apEaratus of this i~vention.
Detailed Description of t~e Inventi,on In Fig. 1, there is illustrated a ram cLadle assembly 2 which, Ln the preferred em~odiment of the m vention, is mounted on the frame 10 illustrated in Fig. 2 of the Maytag patent. The end portion (not ~hown) of the ram 4 extendinf from the right side of Fig. 1 is connected to the straight line m~kion assembly 20 of Fig. 2 of the jc g~A
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Maytag patent. The end portion (not shown) of the ram 4 extending from the left side of Fig. 1 is connected to the redraw sleeve 40 of Fig. 2 of the Maytag patent. Thus, the ram cradle assembly 2 and the ram 4 of this in~ention S have been substituted for the ram carriage 26 and the ram 27 of the Maytag patent. While the preferred embodiment is illustrated for use in the apparatus disclosed in the Maytag patent, it is understood that the concepts of this invention may be used with any mechanism wherein a body needs to be supported so that the body can be reciprocated in a horizontal direction at various rates of reciprocation, such as hundreds of times a minute.
The ram cradle assembly 2 comprises a pair of rails 6 and 8 secured to the frame 2 in Fig. 6 of the Maytag patent. Support plates 10 and 12 extend between the rails 6 and ~ and are secured to each rail by suitable means such as the threaded bolts 14. A plurality of spacer blocks 16 extend between the support plates 10 and 12 and are secured in place by threaded bolts 18.
A pair of freely rotatable supp~rt rollers 20 and 22 having angularly related generally cylindrical surfaces 24 and 26 are mounted in recesses in each of the plates lO
and 12 and secured thereto by suitable means such as bolts (not shown). As illustrated in Fig. 2, the rollers 20 and 22 are mounted between a pair of spaced apart lugs 28 and held in position by nuts 30. Th~ ram 4 is provided with two angularly related planar surfaces 32 and 34, each of which extends in a direction generally parallel to the longitudinal axis of the ram 4. An opening 36 is provided in each of the plates 10 and 12 to provide for the passage of the ram 4 through the plates 10 and 12. The ram 4 is supported on the rollers 20 and 22 so that the planar surface 32 is in contact with and supported by generally cylindrical surface 24 and the .
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~.
planar surface 34 is in contact with and supported by generally cylindrical surface 26. The weight of the ~am 4 ~ooperates with the angula~ relationsh~p ~f the planar surfaces 32 and 34 and the angular relationship of the generally cylindrical surfaces 24 and 26 to retain the longitudinal axis of the xam 4 from movement in any direction perpendicular to the longitudinal axis during the reciprocal movement of the ram 4. Although only two rollers and two planar surfaces are ill~strated in ~ig. 2, it is to be understood that more than two ~ollers and two planar surfaces may be used. In all instances, the an~ular relationship of the planar surfaces corre-sponds to the angular relationship o~ the generally cylindrical surfaces of the rollers.
As stated a~ve, the weight o~ the ram is sufficient to hold it in position during the reciprocal movement.
Howe~er, it is highly desirable that there be n~ sliding movement be~ween the planar surface on the ram a~d the generally cylindrical surface on the roller. This is particularly so at the end of the reciprocal movement in the one direction and the start of movement in the opposite direction. Therefore, means ~re psovi~ed to ensure a relative rolling relationship ~etween the planar surface on the ram and the generally cylindrical surface on the roller. The preferred embodiment for accomplish-ing this rollins relationship is illustrated in Figs. 1 an8 2 and c~mp~ises ~ollers 38 and 40 ha~ing generally cylindrical surfaces 42 and 44 and mounted on the plates 10 and 12. The mounting means comprises a ~o~etailed recess 46 in the plates 10 and 12 ana a corresponding dovetailed proiection 48 on a support member ~0 which depends from a plate member ~2 which is secured to each plate 10 and 12 by threaded bolts 54. The support member 50 has two spaced apart proje~ting portions 56 each of which is provided with a vertically extending re~ess 58~ The rollers 38 an~ 40 are mounted in bearing blocks 60 which ~1 ~815~2~L
.
_,_ have projectfng portions 62 mounted for sliding movement in the recesses ~8. The relationship between the bearing blocks 60 and the ~ecesses 58 is ~uch ~o as ~o allow movement of the bearing block 60 in a vertical direction but to prevent relative movement in a horizontal direc-tion. The upper portion of the bearing block 60 is attached to the lower portion of a spring 64. The upper portion of the spring 64 is attac~ed to a plate 66 having a threaded mem~er 68 projecting therefro~ and extending through an opening in the plate member 52. A nut 70 is threaded on the member 68 so that the tension of the spring 64 may be adjusted. The ram 4 is provided with a planar ~urface 72 and, as illustrated in Fig. 2, is in contact with the generally cylindrical ~urface 42 of the rQller 38, The springs 64 function to ~aintain the the . -rollers 38 and 4D in contact with the planar surface 72 and to apply an additional force on the ram 4 to ensure - the desired rolling relationship between the planar sùrfaces and the generally cylindrical surfaces. The amount of force applied by rollers 38 and 40 is controlled by adjustment of the spring 64.
In the preferred embodime~t of t~e invention, the ram 4 is reciprocated at rates of hundreds of times per minute. In order to minimize vibr~tions, dampening.means are pro~i~ed. In the preferred embodi~ent, the dampening means comprises a rope packing 74 in contact with the outer surface of the ram 4. The ~Dpe pac~ing 74 is mounted in a holder 76 sec~red to a plate 78 mounted in spaced relationship to the plate 12 by spacing means 80.
A packing push plate 82 is ~ounted on the holaer 76 by threaded bolts 84. The rope packing 74 is a conve~tional half and half rope pac~ing formed frcm Teflon coated cotton or fiberglass.
While the preferred embodime~ts of the invention have been illustrated and described herein, it may be otherwise embodied and practiced within the scope of the claims.
Typically, ~echanically dri~en rams can be driven at high speeds but do not always provide uniform punch speed or ~ravel in a straight line motion, which is critical to co~tinuously producing uniform can walls. The Maytag in~entiDn o~er~omes some of these problems ~ut the mouement of a hëavy carriage upon which the r~m rides inherently requires a significant amount of service time.
Wear items such as bearings ~nd cam followers must constantly be replaced. When such items are replace, the complete ram system must be calibrated and each wheel in~ividually loaded. Regrinding the hardened way strips al~o c~ntributes to the significant ~down time.~ ~educing ~do~wn time" and increasing efficiency is significant in light~of the fact that can bodymachines typically run 24 hours per day and can produce as many as~30 cans per minute.
Summary of the in~ention It is an object of this invention to support a body while permitting reciprocal movement of the body in a horizo~tal direction.
It is another object of this invention to supp~rt a body while permitting leciprocal movement of the ~ody at ; rates of hundreds of times a minute in a horizontal direction with a minimum of body rotation and deviation from a straight line motion.
It is a further object of this inventi~n to support a ~ody while permitting reciprocal ~ovement of the body at rates of hundreds of times a minute in a horizontal direction utilizing the weight of the body to maintain the body in contact with the support.
It i~ a further o~ject of thi~ invention to ~upp~rt a body while permitting reciprocal movement of the body at s~tes of hundreds ~f times a minute in a ~orizontal direction utilizing the weight of the bod~ to maintain the body in contact with the support and to dampen out vibrations caused by the change in direction of movement of the body and/or the work performed by the body.
The foregoing objects are accomplished by this invention by providing ~means for supporting a body while permi~ting reciprocal mo~ement of the ~ody and is particularly directed to means for supporting a recipro-cal ram used in apparatus for forming can bodies. The invention also provides means for dampening vibrations so as to limit damage to the apparatus normally resulting from such vibrations. Also, by minimizing ~ibrations, the can making efficiency is increased.
In the preferred embodiment of the invention a ram cradle assembly an~-a ram having an outer surface shaped to cooperate with angularly relàted surfaces on the ram cradle assembly are substituted for the carriage and hardened way strips ~f the apparatus disclosed in the Maytag patent. The ram cradle assembly comprises at least two spaced apart supports wherein each support c~mprises two angularly related rollers havin~ generally cylindrical surfaces. A ram is provided with two angular-ly related planar surfaces extending in a direction generally parallel *o the lon~itudinal axis of the r~m.
The angular relationship of the planar surfaces is the same as the angular relation5hip of the r~llers so that the ram may be supported by the ram cradle assembly with the planar surfaces on the ram in contact with the cylindrical surfaces of the rollers. The weight of the ram is generally sufficient to insure that the ram remains in contact with the rollers. ~owever, in the preferred embodiment, additional means are provided to apply a force urging the ram into firmer contact with the 9~
rollers. This for~e apply mg means comprises at least two spaced apart rollers, each of which has a qenerally cylindrical surface. The ram is provided with ancther planar surface extending in a direction generally parallel to the longitudlnal axis of the ram and located so that it will be contacted ~y the force applying rollers. Any means, such as a sprin3, may be used to apply the force to the force applying rollers.
In summary, therefore, the present invention may be considered as providing a machine for forming can bodies, the machine comprising a ram supported by a frame for reciprocal movem~nt along a horizontal path, the ralm being provided with support surfaces comprising at least tw~ planar surfaces extending in a direction parallel to the longitudinal axis of the ra~m, the planar surfaces being circumferentially spaced apart from each other, a pair of horizontally spaced apart supporting means each comprising roller means mounted to : the frame, the roller means being in contact with each of the spaced apart planar surfaces, each roller means being mounted for rotation, dampening means affixed to the frame and in contact with the outer - surface of the ram duri~g itg reaiprocal movement along the horizontal path, the can}erlnJ means ~eLng positioned between the roller means and the end of the ram, at least one freely rotatable roller secured to the frame and having a generally cylindrical outer surface, a thir~ planar surface on the ram ex*crding in a direction parallel to the longitudinal axis, an~ m~ans for urging the one freely rotatable roller into conta~t with the third planar surface whereby the means for supporting in conjunction with the means for urging provide straight jc ;~
A
329~
- 4a -horizontal line movement without deviation or rotation during the reciprocal movement of the ram.
~ he dampendna means, in the preferred e=bodim~nt of the invention, comprises a rope packing that is supported on the ram cradle assembly and is in circumferential contact with the adjacent portions of the cuter surface of the ram. m e preferred rope packing comprises Teflon coated cotton or fiberglass rope.
other objects and advantages of the invention will be apparent from the following more partic~lar description of preferred emkodiments as illustrated in the acccmpanying drawings in which like reference characters refer to the same parts throu~hout the various views. The drawings are nct neoe ssarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
Brief Description of the Drawing Fig. 1 is a top plan view of the apparatus of this invention; and Fig. 2 is an end elevation of the apEaratus of this i~vention.
Detailed Description of t~e Inventi,on In Fig. 1, there is illustrated a ram cLadle assembly 2 which, Ln the preferred em~odiment of the m vention, is mounted on the frame 10 illustrated in Fig. 2 of the Maytag patent. The end portion (not ~hown) of the ram 4 extendinf from the right side of Fig. 1 is connected to the straight line m~kion assembly 20 of Fig. 2 of the jc g~A
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Maytag patent. The end portion (not shown) of the ram 4 extending from the left side of Fig. 1 is connected to the redraw sleeve 40 of Fig. 2 of the Maytag patent. Thus, the ram cradle assembly 2 and the ram 4 of this in~ention S have been substituted for the ram carriage 26 and the ram 27 of the Maytag patent. While the preferred embodiment is illustrated for use in the apparatus disclosed in the Maytag patent, it is understood that the concepts of this invention may be used with any mechanism wherein a body needs to be supported so that the body can be reciprocated in a horizontal direction at various rates of reciprocation, such as hundreds of times a minute.
The ram cradle assembly 2 comprises a pair of rails 6 and 8 secured to the frame 2 in Fig. 6 of the Maytag patent. Support plates 10 and 12 extend between the rails 6 and ~ and are secured to each rail by suitable means such as the threaded bolts 14. A plurality of spacer blocks 16 extend between the support plates 10 and 12 and are secured in place by threaded bolts 18.
A pair of freely rotatable supp~rt rollers 20 and 22 having angularly related generally cylindrical surfaces 24 and 26 are mounted in recesses in each of the plates lO
and 12 and secured thereto by suitable means such as bolts (not shown). As illustrated in Fig. 2, the rollers 20 and 22 are mounted between a pair of spaced apart lugs 28 and held in position by nuts 30. Th~ ram 4 is provided with two angularly related planar surfaces 32 and 34, each of which extends in a direction generally parallel to the longitudinal axis of the ram 4. An opening 36 is provided in each of the plates 10 and 12 to provide for the passage of the ram 4 through the plates 10 and 12. The ram 4 is supported on the rollers 20 and 22 so that the planar surface 32 is in contact with and supported by generally cylindrical surface 24 and the .
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~.
planar surface 34 is in contact with and supported by generally cylindrical surface 26. The weight of the ~am 4 ~ooperates with the angula~ relationsh~p ~f the planar surfaces 32 and 34 and the angular relationship of the generally cylindrical surfaces 24 and 26 to retain the longitudinal axis of the xam 4 from movement in any direction perpendicular to the longitudinal axis during the reciprocal movement of the ram 4. Although only two rollers and two planar surfaces are ill~strated in ~ig. 2, it is to be understood that more than two ~ollers and two planar surfaces may be used. In all instances, the an~ular relationship of the planar surfaces corre-sponds to the angular relationship o~ the generally cylindrical surfaces of the rollers.
As stated a~ve, the weight o~ the ram is sufficient to hold it in position during the reciprocal movement.
Howe~er, it is highly desirable that there be n~ sliding movement be~ween the planar surface on the ram a~d the generally cylindrical surface on the roller. This is particularly so at the end of the reciprocal movement in the one direction and the start of movement in the opposite direction. Therefore, means ~re psovi~ed to ensure a relative rolling relationship ~etween the planar surface on the ram and the generally cylindrical surface on the roller. The preferred embodiment for accomplish-ing this rollins relationship is illustrated in Figs. 1 an8 2 and c~mp~ises ~ollers 38 and 40 ha~ing generally cylindrical surfaces 42 and 44 and mounted on the plates 10 and 12. The mounting means comprises a ~o~etailed recess 46 in the plates 10 and 12 ana a corresponding dovetailed proiection 48 on a support member ~0 which depends from a plate member ~2 which is secured to each plate 10 and 12 by threaded bolts 54. The support member 50 has two spaced apart proje~ting portions 56 each of which is provided with a vertically extending re~ess 58~ The rollers 38 an~ 40 are mounted in bearing blocks 60 which ~1 ~815~2~L
.
_,_ have projectfng portions 62 mounted for sliding movement in the recesses ~8. The relationship between the bearing blocks 60 and the ~ecesses 58 is ~uch ~o as ~o allow movement of the bearing block 60 in a vertical direction but to prevent relative movement in a horizontal direc-tion. The upper portion of the bearing block 60 is attached to the lower portion of a spring 64. The upper portion of the spring 64 is attac~ed to a plate 66 having a threaded mem~er 68 projecting therefro~ and extending through an opening in the plate member 52. A nut 70 is threaded on the member 68 so that the tension of the spring 64 may be adjusted. The ram 4 is provided with a planar ~urface 72 and, as illustrated in Fig. 2, is in contact with the generally cylindrical ~urface 42 of the rQller 38, The springs 64 function to ~aintain the the . -rollers 38 and 4D in contact with the planar surface 72 and to apply an additional force on the ram 4 to ensure - the desired rolling relationship between the planar sùrfaces and the generally cylindrical surfaces. The amount of force applied by rollers 38 and 40 is controlled by adjustment of the spring 64.
In the preferred embodime~t of t~e invention, the ram 4 is reciprocated at rates of hundreds of times per minute. In order to minimize vibr~tions, dampening.means are pro~i~ed. In the preferred embodi~ent, the dampening means comprises a rope packing 74 in contact with the outer surface of the ram 4. The ~Dpe pac~ing 74 is mounted in a holder 76 sec~red to a plate 78 mounted in spaced relationship to the plate 12 by spacing means 80.
A packing push plate 82 is ~ounted on the holaer 76 by threaded bolts 84. The rope packing 74 is a conve~tional half and half rope pac~ing formed frcm Teflon coated cotton or fiberglass.
While the preferred embodime~ts of the invention have been illustrated and described herein, it may be otherwise embodied and practiced within the scope of the claims.
Claims (9)
1. A machine for forming can bodies, said machine comprising a ram supported by a frame for reciprocal movement along a horizontal path, said ram being provided with support surfaces comprising at least two planar surfaces extending in a direction parallel to the longitudinal axis of said ram, said planar surfaces being circumferentially spaced apart from each other, a pair of horizontally spaced apart supporting means each comprising roller means mounted to said frame, said roller means being in contact with each of said spaced apart planar surfaces, each roller means being mounted for rotation, dampening means affixed to the frame and in contact with the outer surface of said ram during its reciprocal movement along the horizontal path, said dampening means being positioned between said roller means and the end of said ram, at least one freely rotatable roller secured to the frame and having a generally cylindrical outer surface, a third planar surface on said ram extending in a direction parallel to said longitudinal axis, and means for urging said one freely rotatable roller into contact with said third planar surface whereby the means for supporting in conjunction with the means for urging provide straight horizontal line movement without deviation or rotation during the reciprocal movement of said ram.
2. An apparatus as recited in claim 1 in which the dampening means includes a rope packing mounted within a holder means for contact with the outer surface of said ram.
3. An apparatus as recited in claim 1 in which the means for urging said one freely rotatable roller includes spring means for applying a force to said roller to thereby urge said roller against said third planar surface.
4. In a machine for forming can bodies, said machine comprising a ram supported by a frame for reciprocal movement along a horizontal path, said ram being provided with support surfaces comprising at least two planar surfaces extending in a direction generally parallel to the longitudinal axis of said ram, said planar surfaces being circumferentially spaced apart from each other, a pair of horizontally spaced apart supporting means each comprising roller means mounted to said frame and in line contact across the width of each of said spaced apart planar surfaces, each roller means straddling the planar surfaces that lie adjacent to each roller means and extending to a width exceeding the adjacent width of the planar surface, each roller means mounted for rotation and openly exposed over substantially the full extent of said roller means, dampening means affixed to the frame and in contact with the outer surface of said ram during its reciprocal movement along the horizontal path, said dampening means being positioned between said roller means and the end of said ram, at least one freely rotatable roller secured to the frame and having a generally cylindrical outer surface, a third planar surface on said ram extending in a direction generally parallel to said longitudinal axis, the at least one freely rotatable roller straddling the third planar surface to a width exceeding the width of the third planar surface, said rotatable roller being openly exposed over substantially the full extent thereof, and means for urging said one freely rotatable roller into contact with said third planar surface whereby the means for supporting in conjunction with the means for urging provide straight horizontal line movement without deviation or rotation during the reciprocal movement of said ram.
5. An apparatus as recited in claim 4 in which the dampening means include a rope packing mounted within a holder means for contact-with the outer surface of said ram.
6. An apparatus as recited in claim 4 in which the means for urging said one freely rotatable roller includes spring means for applying a force to said roller to thereby urge said roller against said third planar surface.
7. In combination with a machine for forming can bodies comprising a ram supported by a frame for reciprocal movement along a horizontal path, said ram being provided with support surfaces extending in a direction generally parallel to the longitudinal axis of said ram, a pair of horizontally spaced apart supporting means each comprising roller means mounted to said frame and in contact with each of said pair of spaced apart planar surfaces, the improvement which comprises: each of said roller means straddling the planar surfaces that lie adjacent to each roller means and extending to a width exceeding the adjacent width of the planar surface, each roller means being mounted for rotation and openly exposed over substantially the full extent of said roller means, dampening means being affixed to the frame and in contact with the outer surface of said ram during its reciprocal movement along the horizontal path, said dampening means being positioned between said roller means and the end of said ram, at least one freely rotatable roller being secured to said frame and having a generally cylindrical cuter surface, a third planar surface on said ram extending in a direction generally parallel to said longitudinal axis, the at least one freely rotatable roller straddling the third planar surface to a width exceeding the width of the third planar surface, said rotatable roller being openly exposed over substantially the full extent thereof, and means for urging said one freely rotatable roller into contact with said third planar surface whereby the means for supporting in conjunction with the means for urging provide straight horizontal line movement without deviation or rotation during the reciprocal movement of said ram.
8. In a machine for forming can bodies, said machine comprising a ram supported by a frame for reciprocal movement along a horizontal path, said ram being provided with support surfaces comprising at least two planar surfaces extending in a direction parallel to the longitudinal axis of said ram, said planar surfaces being circumferentially spaced apart from each other, a pair of horizontally spaced apart supporting means each comprising roller means mounted to said frame and affixed thereto for non-reciprocal movement, said roller means being in contact with each of said spaced apart planar surfaces, each roller means mounted for rotation and openly exposed over substantially the full extent of said roller means, dampening means affixed to the frame and in contact with the outer surface of said ram during its reciprocal movement along the horizontal path, said dampening means being positioned between said roller means and the end of said ram, at least one freely rotatable roller secured to the frame and having a generally cylindrical cuter surface, a third planar surface on said ram extending in a direction parallel to said longitudinal axis, and means for urging said one freely rotatable roller into contact with said third planar surface whereby the means for supporting in conjunction with the means for urging provide straight horizontal line movement without deviation or rotation during the reciprocal movement of said ram.
9. In combination with a machine for forming can bodies comprising a ram supported by a frame for reciprocal movement along a horizontal path, said ram being provided with support surfaces extending in a direction generally parallel to the longitudinal axis of said ram, a pair of horizontally spaced apart supporting means each comprising roller means mounted to said frame and in contact with each of said pair of spaced apart planar surfaces, the improvement which comprises: each of said roller means straddling the planar surfaces that lie adjacent to each roller means and extending to a width exceeding the adjacent width of the planar surface, each roller means being mounted for rotation, dampening means being affixed to the frame and in contact with the outer surface of said ram during its reciprocal movement along the horizontal path, said dampening mean being positioned between said roller means and the end of said ram, at least one freely rotatable roller being secured to said frame and having a generally cylindrical outer surface, a third planar surface on said ram extending in a direction generally parallel to said longitudinal axis, the at least one freely rotatable roller straddling the third planar surface to a width exceeding the width of the third planar surface, and means for urging said one freely rotatable roller into contact with said third planar surface whereby the means for supporting in conjunction with the means for urging provide straight horizontal line movement without deviation or rotation during the reciprocal movement of said ram.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000510345A CA1288291C (en) | 1986-05-29 | 1986-05-29 | Apparatus for supporting a body for reciprocal movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000510345A CA1288291C (en) | 1986-05-29 | 1986-05-29 | Apparatus for supporting a body for reciprocal movement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1288291C true CA1288291C (en) | 1991-09-03 |
Family
ID=4133240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000510345A Expired - Fee Related CA1288291C (en) | 1986-05-29 | 1986-05-29 | Apparatus for supporting a body for reciprocal movement |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1288291C (en) |
-
1986
- 1986-05-29 CA CA000510345A patent/CA1288291C/en not_active Expired - Fee Related
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