CA1038281A - Perforating machine for forming side flanged openings - Google Patents
Perforating machine for forming side flanged openingsInfo
- Publication number
- CA1038281A CA1038281A CA236,699A CA236699A CA1038281A CA 1038281 A CA1038281 A CA 1038281A CA 236699 A CA236699 A CA 236699A CA 1038281 A CA1038281 A CA 1038281A
- Authority
- CA
- Canada
- Prior art keywords
- roll
- punch
- discs
- die
- 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
Landscapes
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
S P E C I F I C A T I O N
ABSTRACT OF THE DISCLOSURE
A machine for manufacturing corrugated mat-erial having successive sets of corrugation forming roll means preceded or succeeded by rotating punch and die roll means cooperatively correlated with the corrugated roll means in a manner for forming openings in material in positions such that the openings will have side flanges extending outwardly from the crests of the finished cor-rugated material, the punch roll being formed of discs, the discs being of a sufficient width as to need no spacers, the die roll means being cylindrical and formed of a mater-ial indentable by rotation of said discs thereagainst to form a female die roll.
ABSTRACT OF THE DISCLOSURE
A machine for manufacturing corrugated mat-erial having successive sets of corrugation forming roll means preceded or succeeded by rotating punch and die roll means cooperatively correlated with the corrugated roll means in a manner for forming openings in material in positions such that the openings will have side flanges extending outwardly from the crests of the finished cor-rugated material, the punch roll being formed of discs, the discs being of a sufficient width as to need no spacers, the die roll means being cylindrical and formed of a mater-ial indentable by rotation of said discs thereagainst to form a female die roll.
Description
1CX3U32 ~
FI~LD OF l~ VENTION
;
This invention is in the field of machines for pro-duciDg corrugated and perforated material for such u~es as well casings, and especially for use as sub-soil drainage pipe.
DESCRIPTION OF THE PRIOR ART
~ his application provides ~pecific improvements over the machine for this same purpose which is described in my earlier United States of America patent 3,698,222, issued 10. October 17, 1972 to Darrell N. Blake, titleds ~ -~
^~i PERFORATING MASHINE.
The perforating machine of my earlier patent provided important improvements and yet it ls the purpose of this ;l invention to provide improvements on th~t machine. Q~e J~ of the improvements is the elimination of the co~t of manu-factura of spacers which had been used between the punch- ~ ;
iDg discs. -Another improvem~nt advantage is in the reduction of the labor required in the original assembly of the punch-20. ing roll by the ellm~nation of the discs so that thereare fewer parts to put in place. Much more importantly, since ~harpening of the pu~ching discs is accomplish~d by disc-assembly of the punching roll with its m~ny discs a~d spacers, and then sharpe~ing the disc~ as the next ~tep, and thQn placing all the discs and spacers back on the punching roll axle again, ~ith the alignme~t above each disc carefully so that its key slot registers with the key of the punching roll axle. Therefore, it is an objective to eliminate the need to place a spacer between 30. each succe~ive disc.
, ,~ .
: ,: . ~ . . . .
Special costs had been l~nv ~ve ~ the older machine of the above-mentioned United States of America patent 3,698,222 because the female die was itself made of many discs, some of larger diameter spaced apart by other discs or spacers of lesser diameter, all requiring special m~nufacturing costs because of the need for pre-cisision dimensions and all requiring assembly costs be-cause of the ma~y parts.
SU~ARY or r~ ~
` 10. ~ particular ob~ect is to provide a machine for manu-facturing corrugated perforated material having successive sets of corrugation forming roll means preceded or suc-ceeded by rotating punch and die roll means cooperatively correlated with the corrugated roll means in a manner for forming openings i~ material in positions such that the . .
~` ope~lDgs will have side flanges e~tending outwardly from ~, ~
the crests of the finished corrugated material, the punch ~: roll being formed of discæ, in which the punching die is -- formed of many discs disposed side by side, the discs not ,........................................................................ .
'r~' 20. being separated by spacers whereby the cost and assembly ~. problems associated with spacers are eliminated, as ac-complished by my discovery of the possibility of making the male die discs each of an unusual thickness at its center portion so that each is of the thickness neces-. sary to eliminate the need for spacers, the punching ;
wedges of the discs are of the same size as in the ~` eRrlier patent issued in the U~ited StRtes of America . 3,698,222, but portions of the discs which are of annular shape and which are immediately inwardly of the wedges ~`: 30. are particularly formed of much thin~er dimension ~ . ~
'` .
1038Z~
than central portions of the discs so as to facilitate sharpening of the wedges themselves, the total result being the possibility of having both advantages at once, that is the ease of sharpening and also thick male discs, the latter making possible the elimination of the spacers.
A further objective is to achieve economy in the fe-male by making it of a material suitable for the informa-tion of recesses for receiving the punching wedges auto-matically as the two roll sets, male and female, are rolled 10. against each other, and without any other special forming of female die recesses in manufacture so that the female die can cimply be made from a cylindrical piece of material, preferably of a yielding thermoplastic material, such as polyurethane which I have discovered is very effective.
The advantages achieved are not only in the first cost of manufacture which is greatly reduced, but also in the r elimination of costly assembly costs.
BRIEF DESCRIPTION OF THE DRAWING
Figure 1 is a front end view of a portion of corrugat-20.ing and perforating machine of this invention, as seenalong the line 1--1 of Figure 2~ but diagrammatically shown with the punching discs on the left hand side being against each other and the punching discs on the right hand side illustrating an alter~ate usage die accomplish-a different spacing in which the punching discs are held spaced apart by a spacer between each two discs, portions of the male die-roll axle and portions of the femal~ die roll axle, and portions of the female die roll be~ng broken away, and axle portio~s of the machine not being 30. shown, a lower half of the female die roll and its axle not being shown.
Figure 2 is a side elevation of the corrugaSing and perforating machine of this invention as seen from a right hand side thereof, with the right hand frame portions re-moved and axles showing in section because their right ends are removed.
; Figure 3 is a side elevation detail of a m~le punching die.
Figure 4 is a side elevation detail of a male punch-10. ing die spacer.
Figure 5 is a sectional view ~aken along the line 5--5 of Figure 3.
DESCRIPTION OF THE PREFERR~D EMBODIMENT
The machine for man~facturing corrugated perforated material of this invention is generally indicated at 10 in Figure 2 and comprises successive sets of corrugation forming roll assemblies such as the first assembly 20 and a second assembly 24, suitably mounted on a frame 30.
The corrugation forming roll assemblies are formed in 20. a usual manner for roll-forming machines and as illustrated in the United States of America patent 3,698,222,earlier mentioned, whereby there is a plurality of corrugating rolls disposed on a first axle 42 of each set, such rolls being seen at 44 a~d also a plurality of corrugating rolls disposed on each axle 48 of each corrugation forming roll assembly or set 20 or 24~ the latter corrugation fonming - rolls being called second rolls 50, and being in alternate spaciDgs with respect to the rolls 44 disposed respectively there above so as to lap the rolls 44 as seen in cross 30. section in a vertical plane, and taken at a right angle ~03szm to the axes of the axles 42 and 48, respectively.
The axles 42 and 48 of each corrugation roll-fonm-ing assembly or set 20 and 24 are disposed preferably directly and vertically above each other, and parallel to each other in a usual manner.
The machine has cooperating male punch roll discs 90 arranged on an axle 92 and disposed above and opposite a female die roll 100 mounted on an axle 94 disposed dir-ectly below and parallel to the axle 92 and also parallel 10. to the other axle, such as the axle 42 of the machine.
All of the axles of the machine are mounted in bearings, not shown, and the frame 30 can be considered to be a frame and bearing assembly 30 having bearing and axle re-lationships conventional in roll-forming machines.
The punching roll assembly 90 has a plurality of male punching roll discs 120 which are best seen in detail by a sample shown in Figure 3, in which each disc has an axle opening 126 of cylindrical shape, generally, but hav- `
ing a key-way 128 therein for receiving a key 132, best 20. seen in Figure 2, and extending the length of the axle 92, as seen in Figure 1.
Each disc 120 has a plurality of equally spaced punches 160, protruding therefrom, each punch having a wedge-shap-ed tip 162. The discs 120 are disposed alongside each other with the circular row of punches around the exterior of each disposed in parallelism with the circular row~ of spaced punches disposed around the other ones of the disc 120, whereby the sharp outermost edges of a punch are dis-posed in a plane, and whereby the respective planes of 30. each punch are disposed in parallelism with each other.
103~2~
Each male punching roll disc 120 has two outermost side surfaces 182 and 184, which are dlsposed in paral-lism and at a right angle to the elongated axle 92 and at a right angle to the axis 194 of the axle 92. Be-cause of this, the side 182 of one disc can be placed against the side 184 of an ad3acent dlsc so that with the end most discsalong the axle 92 held for moving longitudinal-ly of the axle in any conventional manner, then the discs will all remain in place against each other in the manner 10. shown by the four discs illustrated on the left-hand side of Figure 1.
However, there are times when it is desired to perfor-ate the material being treated with openings that are somewhat more widely spaced and this is accomplished by inserting a spacer, shown at 250, in Figure 4, between two adjacent ones of the discs 120 in a manner shown at the right hand side o~ F~gure 1.
To assure go~d align~ent the spacer 250 is provided with two sides 252 and 254, which are disposed each in a 20. plane parallel to the axis 194, so as to engage respective ad~acent side surfaces 182 and 184 of respective ad3acent discs 120 tightly to maintain good spacing.
Each disc ~0 is further provided with a~ annular pro- -trusion or boss 272, having a circular and cylindrical outer surface 274, which latter snugly and slidably en-gages in a cylindrical recess 278 in each of the adja-cent discs 120.
The recess 278 has a cylindrical wall 279 disposed parallel to the axis 194 and concentric with the axle 30. opening 126 of the disc 120, both centered about the axis194.
1038Z~
The punches 160 each have wedge-shaped tip portions 162, as described, but in addition each disc 120 is pro-vided with a shape for facilitating the sharpening of the wedge-shaped tip portions, and this is accomplished by providing each disc with an annular section 300 intercon-necting its punching tip portion 162 with an annular re-mainder 302 of the respective discs 120, the intermediate portion 300 being of a much lesser thickness than the re-maining portio~ or annular inner portion 302 of each disc 10. to allow grinding tools easy access to the wedge-shape tip portions 162 for sharpening.
The intermediate portions 300 can be tapered from some-what thicker outer portions where they connect to the wedge-shaped t~p portions 162 i~wardly to somewhat thicker sec-tions 306 where the intermediate portions 300 connect to the inner remaining portions 302 of a respective disc~
The discs can further taper in thickness in a connecting annular section 342 of a disc, which latter connects the respective intermediate portion 300 with the main section 20. 354 of the disc, which is disposed between the connecting annular section 342 and the axis 194 and, therefore, is disposed between the flat parallel outermost sides 182 and 184, whereby it represents the thickest section of a male disc 120. :~
The construction defined is believed to provide a shape capable of giving good strength while serving the function of permitting ease of sharpening.
The female die-roll 100 is formed of a single piece of material, preferably of a yielding thermoplastic material, 30. such as polyurethane, which is cylindrical on its outer .
side, as seen at 602, and which has a cylindrical opening 604 extending therethrough, parallel to the cylindrical exterior 602, and parallel to the axis 610 of the axle 94 of the female die-roll lO0. While the opening 604 is substantially cylindrical, it does have a key-way 622 in one side thereof for receiving a key 624, best seen in Figure 2.
In operation it will be seen that as the male die-roll 90 with its many discs 120 rotates in pressure con-10. tact with the female die-roll 100, that the wedge-shaped tip portions 162 of the punches 160 will make indentations in the female die-roll 100 and at all times during rotation these indentations will be in exact alignment with the ~e-spective wedge-shaped tip portions 162 of the punches as they successfully become ad~acent them, it being understood that as seen looking along the axis 194, the discs 120 are so aligned that their punches 160 are in alignment in many rows equi-distantly spaced apart.
Sample indentations in the female die-roll 100 can 20. be seen at 730 in Figure 1, and disposed in rows of spaced apart indentations, such as the row 738 and the row 740 of Figure 1, which latter rows are parallel, and are disposed in planes, each at a right angle to the axis 610, and spaced apart along the axis 610, directly beneath - the wedge~shaped tip portions of the punches 160. For ,~ convenience of illustration, other indentations on the left portion of the female roll 100 are not shown in Figure 1.
In Figure 1, a dotted line can be seen at 742, and 30. it indicates a position of the exterior of a female die 100 ~'' .'- , ': ' ' ' , - - .
immediately after installation. However, the female die is then ad~usted toward the axis 194 of the male die until its outer circumference is indented by the wedge shaped tip portions 162 of the male die-rolls.
Thereafter the respective rolls need only be rotated and all of the other indentations 730 will be formed, as described, saving great amounts of cost in making in-dentations, such as would be necessary if made in any other way.
The die-roll lOO has a construction either entirely made, or at least its outermost portions are entirely made of the thermoplastic material called polyurethane of a shore durometer value of 72A to 95A, preferably sub-stantially 90A.
FI~LD OF l~ VENTION
;
This invention is in the field of machines for pro-duciDg corrugated and perforated material for such u~es as well casings, and especially for use as sub-soil drainage pipe.
DESCRIPTION OF THE PRIOR ART
~ his application provides ~pecific improvements over the machine for this same purpose which is described in my earlier United States of America patent 3,698,222, issued 10. October 17, 1972 to Darrell N. Blake, titleds ~ -~
^~i PERFORATING MASHINE.
The perforating machine of my earlier patent provided important improvements and yet it ls the purpose of this ;l invention to provide improvements on th~t machine. Q~e J~ of the improvements is the elimination of the co~t of manu-factura of spacers which had been used between the punch- ~ ;
iDg discs. -Another improvem~nt advantage is in the reduction of the labor required in the original assembly of the punch-20. ing roll by the ellm~nation of the discs so that thereare fewer parts to put in place. Much more importantly, since ~harpening of the pu~ching discs is accomplish~d by disc-assembly of the punching roll with its m~ny discs a~d spacers, and then sharpe~ing the disc~ as the next ~tep, and thQn placing all the discs and spacers back on the punching roll axle again, ~ith the alignme~t above each disc carefully so that its key slot registers with the key of the punching roll axle. Therefore, it is an objective to eliminate the need to place a spacer between 30. each succe~ive disc.
, ,~ .
: ,: . ~ . . . .
Special costs had been l~nv ~ve ~ the older machine of the above-mentioned United States of America patent 3,698,222 because the female die was itself made of many discs, some of larger diameter spaced apart by other discs or spacers of lesser diameter, all requiring special m~nufacturing costs because of the need for pre-cisision dimensions and all requiring assembly costs be-cause of the ma~y parts.
SU~ARY or r~ ~
` 10. ~ particular ob~ect is to provide a machine for manu-facturing corrugated perforated material having successive sets of corrugation forming roll means preceded or suc-ceeded by rotating punch and die roll means cooperatively correlated with the corrugated roll means in a manner for forming openings i~ material in positions such that the . .
~` ope~lDgs will have side flanges e~tending outwardly from ~, ~
the crests of the finished corrugated material, the punch ~: roll being formed of discæ, in which the punching die is -- formed of many discs disposed side by side, the discs not ,........................................................................ .
'r~' 20. being separated by spacers whereby the cost and assembly ~. problems associated with spacers are eliminated, as ac-complished by my discovery of the possibility of making the male die discs each of an unusual thickness at its center portion so that each is of the thickness neces-. sary to eliminate the need for spacers, the punching ;
wedges of the discs are of the same size as in the ~` eRrlier patent issued in the U~ited StRtes of America . 3,698,222, but portions of the discs which are of annular shape and which are immediately inwardly of the wedges ~`: 30. are particularly formed of much thin~er dimension ~ . ~
'` .
1038Z~
than central portions of the discs so as to facilitate sharpening of the wedges themselves, the total result being the possibility of having both advantages at once, that is the ease of sharpening and also thick male discs, the latter making possible the elimination of the spacers.
A further objective is to achieve economy in the fe-male by making it of a material suitable for the informa-tion of recesses for receiving the punching wedges auto-matically as the two roll sets, male and female, are rolled 10. against each other, and without any other special forming of female die recesses in manufacture so that the female die can cimply be made from a cylindrical piece of material, preferably of a yielding thermoplastic material, such as polyurethane which I have discovered is very effective.
The advantages achieved are not only in the first cost of manufacture which is greatly reduced, but also in the r elimination of costly assembly costs.
BRIEF DESCRIPTION OF THE DRAWING
Figure 1 is a front end view of a portion of corrugat-20.ing and perforating machine of this invention, as seenalong the line 1--1 of Figure 2~ but diagrammatically shown with the punching discs on the left hand side being against each other and the punching discs on the right hand side illustrating an alter~ate usage die accomplish-a different spacing in which the punching discs are held spaced apart by a spacer between each two discs, portions of the male die-roll axle and portions of the femal~ die roll axle, and portions of the female die roll be~ng broken away, and axle portio~s of the machine not being 30. shown, a lower half of the female die roll and its axle not being shown.
Figure 2 is a side elevation of the corrugaSing and perforating machine of this invention as seen from a right hand side thereof, with the right hand frame portions re-moved and axles showing in section because their right ends are removed.
; Figure 3 is a side elevation detail of a m~le punching die.
Figure 4 is a side elevation detail of a male punch-10. ing die spacer.
Figure 5 is a sectional view ~aken along the line 5--5 of Figure 3.
DESCRIPTION OF THE PREFERR~D EMBODIMENT
The machine for man~facturing corrugated perforated material of this invention is generally indicated at 10 in Figure 2 and comprises successive sets of corrugation forming roll assemblies such as the first assembly 20 and a second assembly 24, suitably mounted on a frame 30.
The corrugation forming roll assemblies are formed in 20. a usual manner for roll-forming machines and as illustrated in the United States of America patent 3,698,222,earlier mentioned, whereby there is a plurality of corrugating rolls disposed on a first axle 42 of each set, such rolls being seen at 44 a~d also a plurality of corrugating rolls disposed on each axle 48 of each corrugation forming roll assembly or set 20 or 24~ the latter corrugation fonming - rolls being called second rolls 50, and being in alternate spaciDgs with respect to the rolls 44 disposed respectively there above so as to lap the rolls 44 as seen in cross 30. section in a vertical plane, and taken at a right angle ~03szm to the axes of the axles 42 and 48, respectively.
The axles 42 and 48 of each corrugation roll-fonm-ing assembly or set 20 and 24 are disposed preferably directly and vertically above each other, and parallel to each other in a usual manner.
The machine has cooperating male punch roll discs 90 arranged on an axle 92 and disposed above and opposite a female die roll 100 mounted on an axle 94 disposed dir-ectly below and parallel to the axle 92 and also parallel 10. to the other axle, such as the axle 42 of the machine.
All of the axles of the machine are mounted in bearings, not shown, and the frame 30 can be considered to be a frame and bearing assembly 30 having bearing and axle re-lationships conventional in roll-forming machines.
The punching roll assembly 90 has a plurality of male punching roll discs 120 which are best seen in detail by a sample shown in Figure 3, in which each disc has an axle opening 126 of cylindrical shape, generally, but hav- `
ing a key-way 128 therein for receiving a key 132, best 20. seen in Figure 2, and extending the length of the axle 92, as seen in Figure 1.
Each disc 120 has a plurality of equally spaced punches 160, protruding therefrom, each punch having a wedge-shap-ed tip 162. The discs 120 are disposed alongside each other with the circular row of punches around the exterior of each disposed in parallelism with the circular row~ of spaced punches disposed around the other ones of the disc 120, whereby the sharp outermost edges of a punch are dis-posed in a plane, and whereby the respective planes of 30. each punch are disposed in parallelism with each other.
103~2~
Each male punching roll disc 120 has two outermost side surfaces 182 and 184, which are dlsposed in paral-lism and at a right angle to the elongated axle 92 and at a right angle to the axis 194 of the axle 92. Be-cause of this, the side 182 of one disc can be placed against the side 184 of an ad3acent dlsc so that with the end most discsalong the axle 92 held for moving longitudinal-ly of the axle in any conventional manner, then the discs will all remain in place against each other in the manner 10. shown by the four discs illustrated on the left-hand side of Figure 1.
However, there are times when it is desired to perfor-ate the material being treated with openings that are somewhat more widely spaced and this is accomplished by inserting a spacer, shown at 250, in Figure 4, between two adjacent ones of the discs 120 in a manner shown at the right hand side o~ F~gure 1.
To assure go~d align~ent the spacer 250 is provided with two sides 252 and 254, which are disposed each in a 20. plane parallel to the axis 194, so as to engage respective ad~acent side surfaces 182 and 184 of respective ad3acent discs 120 tightly to maintain good spacing.
Each disc ~0 is further provided with a~ annular pro- -trusion or boss 272, having a circular and cylindrical outer surface 274, which latter snugly and slidably en-gages in a cylindrical recess 278 in each of the adja-cent discs 120.
The recess 278 has a cylindrical wall 279 disposed parallel to the axis 194 and concentric with the axle 30. opening 126 of the disc 120, both centered about the axis194.
1038Z~
The punches 160 each have wedge-shaped tip portions 162, as described, but in addition each disc 120 is pro-vided with a shape for facilitating the sharpening of the wedge-shaped tip portions, and this is accomplished by providing each disc with an annular section 300 intercon-necting its punching tip portion 162 with an annular re-mainder 302 of the respective discs 120, the intermediate portion 300 being of a much lesser thickness than the re-maining portio~ or annular inner portion 302 of each disc 10. to allow grinding tools easy access to the wedge-shape tip portions 162 for sharpening.
The intermediate portions 300 can be tapered from some-what thicker outer portions where they connect to the wedge-shaped t~p portions 162 i~wardly to somewhat thicker sec-tions 306 where the intermediate portions 300 connect to the inner remaining portions 302 of a respective disc~
The discs can further taper in thickness in a connecting annular section 342 of a disc, which latter connects the respective intermediate portion 300 with the main section 20. 354 of the disc, which is disposed between the connecting annular section 342 and the axis 194 and, therefore, is disposed between the flat parallel outermost sides 182 and 184, whereby it represents the thickest section of a male disc 120. :~
The construction defined is believed to provide a shape capable of giving good strength while serving the function of permitting ease of sharpening.
The female die-roll 100 is formed of a single piece of material, preferably of a yielding thermoplastic material, 30. such as polyurethane, which is cylindrical on its outer .
side, as seen at 602, and which has a cylindrical opening 604 extending therethrough, parallel to the cylindrical exterior 602, and parallel to the axis 610 of the axle 94 of the female die-roll lO0. While the opening 604 is substantially cylindrical, it does have a key-way 622 in one side thereof for receiving a key 624, best seen in Figure 2.
In operation it will be seen that as the male die-roll 90 with its many discs 120 rotates in pressure con-10. tact with the female die-roll 100, that the wedge-shaped tip portions 162 of the punches 160 will make indentations in the female die-roll 100 and at all times during rotation these indentations will be in exact alignment with the ~e-spective wedge-shaped tip portions 162 of the punches as they successfully become ad~acent them, it being understood that as seen looking along the axis 194, the discs 120 are so aligned that their punches 160 are in alignment in many rows equi-distantly spaced apart.
Sample indentations in the female die-roll 100 can 20. be seen at 730 in Figure 1, and disposed in rows of spaced apart indentations, such as the row 738 and the row 740 of Figure 1, which latter rows are parallel, and are disposed in planes, each at a right angle to the axis 610, and spaced apart along the axis 610, directly beneath - the wedge~shaped tip portions of the punches 160. For ,~ convenience of illustration, other indentations on the left portion of the female roll 100 are not shown in Figure 1.
In Figure 1, a dotted line can be seen at 742, and 30. it indicates a position of the exterior of a female die 100 ~'' .'- , ': ' ' ' , - - .
immediately after installation. However, the female die is then ad~usted toward the axis 194 of the male die until its outer circumference is indented by the wedge shaped tip portions 162 of the male die-rolls.
Thereafter the respective rolls need only be rotated and all of the other indentations 730 will be formed, as described, saving great amounts of cost in making in-dentations, such as would be necessary if made in any other way.
The die-roll lOO has a construction either entirely made, or at least its outermost portions are entirely made of the thermoplastic material called polyurethane of a shore durometer value of 72A to 95A, preferably sub-stantially 90A.
Claims (8)
1. A machine for manufacturing corrugated perfor-ated material comprising a frame and bearing assembly, rotating and cooperating punch and die-roll means mounted rotatably in said frame and bearing assembly and disposed opposite each other and forming a stage of the machine, said punch and roll means having groups of punches thereon, the punches of a group being in substantially a same plane normal to the axis of said punch roll means for punching openings in material passing between said punch and die-roll means, said punches each having a wedge-shape at their outer tip portions, the said planes of said groups of punches being spaced along said punch roll axis, a plurality of sets of oppositely dis-posed corrugating roll means rotatably mounted on said frame members and spaced apart along said frame with respect to each other and with respect to said punch and die-roll means and defining corrugation forming stages of the machine, the-said corrugating roll means of a set having axially spaced annular protrusions meshing alongside each other, said corrugating roll means sets being cooperatively correlated within them-selves and with each other to corrugate material mov-ing continuously through the said stages of the machine, said punch roll means being formed of a plurality of punch roll discs, said punch roll discs having a group of said punches on and integral therewith and protruding from the exterior thereof, said punch roll means having an axle extending through each disc at a right angle to the plane of its punches, means interlocking the punch roll discs and the punch roll axle for preventing rotation of the punch roll discs with respect to the punch roll axle, said punch roll discs each having a pair of substantially planar parallel sides parallel to the plane of its punches, said punches having converging sides which converge to and join at a line at the outer edge of each punch, said punch roll discs thereby having tip portions which are wedge shaped, said discs each having intermediate portions, each of which latter connect one of said wedge-shape tip portions with the remainder of the respective disc, each of said intermediate portions being substantially thinner than that part of each disc which is disposed between its said planar parallel sides so as to facilitate sharpening of said wedge-shape tip portions while at the same time allowing portions of each disc disposed between said substantially parallel sides to be of a width making practical the disposition of said discs alongside each other in engagement with each other so that said wedge-shape tip portions of adjacent discs are in effect spaced apart by the thickness of the discs between said substantially planar parallel sides.
2. The machine of claim 1 in which said die-roll means is formed of a substantially cylindrical piece of material sufficiently yielding in nature such that when it is caused to rotate against said punch roll means in a manner receiving pressure from the wedge-shape tip portions of said punch roll means said die-roll means will means will have indentations formed therein adapted to reamain in registry with respective punches on said punch roll means during continued rotation of said punch and die-roll means.
3. The machine of claim 2 in which said material is preferably of thermoplastic nature.
4. The machine of claim 2 in which said die-roll material is polyurethane.
5. The machine of claim 2 in which said die-roll material is a thermoplastic material of a shore durometer value of 72A to 95A.
6. The machine of claim 5 in which said die-roll material is polyurethane.
7. The machine of claim 2 in which said die-roll material is a thermoplastic material of a shore durometer value of substantially 90A.
8. The machine of claim 7 in which said die-roll material is polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA236,699A CA1038281A (en) | 1975-09-30 | 1975-09-30 | Perforating machine for forming side flanged openings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA236,699A CA1038281A (en) | 1975-09-30 | 1975-09-30 | Perforating machine for forming side flanged openings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1038281A true CA1038281A (en) | 1978-09-12 |
Family
ID=4104171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA236,699A Expired CA1038281A (en) | 1975-09-30 | 1975-09-30 | Perforating machine for forming side flanged openings |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1038281A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985004827A1 (en) * | 1984-04-26 | 1985-11-07 | Glamagard Pty. Limited | Slotting machine |
-
1975
- 1975-09-30 CA CA236,699A patent/CA1038281A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985004827A1 (en) * | 1984-04-26 | 1985-11-07 | Glamagard Pty. Limited | Slotting machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4010831A (en) | Transmission friction plate and device | |
| DE2333426C3 (en) | Disc carrier drum, in particular for gear clutches and brakes | |
| EP0940514B1 (en) | Grid tee with integrally stitched web | |
| US5340221A (en) | Bearing ring with parallel flow internal structure | |
| DE2924812C2 (en) | ||
| US4329118A (en) | Centrifugal blower wheels | |
| US3921272A (en) | Blower wheel and method of making the same | |
| WO2019115124A1 (en) | Sheet-metal disk carrier and method for increasing the ability to withstand rotational speed | |
| CA1038281A (en) | Perforating machine for forming side flanged openings | |
| DE112015005205T5 (en) | Roller bearing support and method of manufacturing the holder | |
| WO1995018012A1 (en) | Embossing device | |
| DE10031878A1 (en) | Internally cogged element has first cylinder section and second cylinder section with larger diameter and with internal cogged areas protruding from inner circumferential surface | |
| DE2159911A1 (en) | Air-to-air energy exchange wheel and process for its manufacture | |
| DE3991692C2 (en) | Process for manufacturing a multiple V-belt pulley from sheet metal | |
| DE2228496C2 (en) | Process for corrugating a thin, flat sheet | |
| US6167601B1 (en) | Method for manufacturing ventilated sheet-metal floor members | |
| JP2999449B2 (en) | Method and apparatus for manufacturing press-formed pulley | |
| WO2010057319A1 (en) | Method for producing a cellular wheel | |
| CA2383843C (en) | Metal sheet perforating disk roll, metal sheet perforating device and metal sheet perforating method which use the disk roll, and perforated metal sheet produced by using the disk roll | |
| EP0780244A2 (en) | Rim and its manufacturing method | |
| DE2458451A1 (en) | PROCESS AND DEVICE FOR MANUFACTURING A PACKAGE FROM OVERLAYED, CLOSED METAL STRIPS | |
| DE60031873T2 (en) | INTERNALLY ROLLED HUB AND METHOD FOR THE PRODUCTION THEREOF | |
| DE602004012261T2 (en) | ROLLING DEVICE AND METHOD OF USE THEREOF FOR MANUFACTURING A PRODUCT OF DIFFERENT CROSS SECTIONS | |
| JPH0146216B2 (en) | ||
| US5375446A (en) | Rotary expanded grid cutter and related process |