US1822984A

US1822984A - Arching mechanism

Info

Publication number: US1822984A
Application number: US384773A
Authority: US
Inventors: William E Watkins
Original assignee: COPPER PLATE SHEET AND TUBE CO
Current assignee: COPPER PLATE SHEET AND TUBE Co
Priority date: 1926-06-16
Filing date: 1929-08-09
Publication date: 1931-09-15
Anticipated expiration: 1948-09-15

Description

Sept. l5, 1931. w. E. wATKlNs ARCHING MECHANISM 2 Sheets-Sheet l Original Filed June 16 Sept., 15, 1931. W. E. wATKlNs ARCHING MECHANISM Original Filed June 16. 192e 2 sheets-sheer 2 Mu m m m m -l |.m s.

YPatented Sept. 15, 1931 UNITED STATES PATENT OFFICE 'WILLIAM E. WATKINS, OF NEW YORK, N. Y., ASSIGNOR TO COPPER PLATE SHEET AND TUBE COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY ARCHING MECI-IAN ISM 'Original application led June 16, 1926, Serial No. 116,486. Divided and this application filed August 9,

1929. Serial This invention relates to mechanism for arching metal sheets, and is a division of my copending application, Serial N 0. 116,486, filed J une 16, 1926.

In said application I have disclosed and claimed a process of treating metal sheets in which the sheets are fed Continuously and Ysuccessively through suitable apparatus by means of which they are first arched, then pickled, then washed to remove the pickling solution, then iiattened and dried, again arched, and then conveyed through an annealing furnace in arched form.

An object of the present invention is the provision of improvedrmeans for arching metal sheets.

In the accompanying drawings,

Fig. 1 is a vertical, sectional view of the arching mechanism;

Fig. 2 is a fragmentary elevation of part of the crowning mechanism shown in Fig. 1; and

Fig. 3 is a fragmentary, transverse, sectional view taken on line 3-3 of Fig. 1 showing details of the arching mechanism.

The arching mechanism comprises two coop erating sets of wheels or disks, one set being arranged above the other, and the two sets being adapted to force the center of each sheet upward as it progresses, while holding the side edges of the sheet down. v

In Fig. 1 I have illustrated a framework 101 having front upright portions 102 carrying an upper cross-beam 103. A screw- "i threaded adjusting rod 104 extends parallel to the beam 103 and is j ournaled at the ends of this beam. Two blocks 105 each have screwthreaded engagement with the adjusting rod 104. These blocks are each connected to an upper supporting beam 106. The two supporting beams, each designated by the numeral 106, are supported at their rear ends by a second adjusting rod 107 extending parallel with a second cross-beam 108. Each of the adjusting

rods

104 and 107 is provided wlth right and left hand screw-threads so that when either of these rods is turned, as by applying a crank to a squared end such as that shown at 109@ in Fig. 2, the adjacent ends of the supporting beams 106are brought closer together or spread further apart, depending upon the direction of rotation of the adj usting rods.

Upper front bearing beams 109 are pivoted to each of the upper supporting beams 106, as shown at 110. Each of the two beams 109 carries a plurality of stub shafts, each carrying a wheel or disk 111. These disks are inclined at an angle to the vertical, as shown in Figs. 2 and 3, and serve to engage the upper surface of each of the sheets passed through the arching mechanism, so as to hold the edges of the sheets down while the center is being forced up by the lower set of arching disks hereinafter described. The rear end of each of the upper bearing beams 109 is journaled in a bearing block 112, adjustably mounted on a corresponding supporting beam 106. The position of each bearing beam with respect to the corresponding supporting beam can be varied by adjusting the screw 113 having a squared end 114 and a lock nut 115. It Will be understood that a bearing block and an adjusting screw are provided for each of the bearing beams 109, as shown in Fig. 3. The blocks 112 can beV fixed to the supporting beams 106 in any adjusted position by tightening nuts 116 on boltspassing through slots 116@ in the bearing blocks. This provides independent adjustment of the rear ends of the two bearing beams 109.

A pair of upper rear bearing beams 117,'

each cal ryin'g four or five wheels or disks'lll, is arranged with the forward end of each bearing beam journaled to the corresponding bearing block 112, and with the rear end of each beam journaled to a rear bearing block 118. Each of the rear bearing blocks may be identical with the bearing blocks 112, and may be provided with the same adjusting and clalnping devices. The rear bearing blocks 118 may be adjusted for the purpose of adjusting each of the rear bearing beams 117 independently of each other and of the front bearing beams 109. The disks 111 carried by the upper front and rear bearing beams are not power driven; they are simply rotatably mounted on stub shafts carried by the bearing beams.

The lower set of disks (shown at 126) adapted to cooperate with the upper set of disks just described, comprises a plurality of wheels or disks of a diameter preferably larger than that of the disks 111 and each mounted ona shaft extending at right angles to the direction of travel ofthe sheets through the arching mechanism. In Fig. 1, I have shown eight of these shafts, the forward six, designated by the numeral 119, being journaled in front bearing beams 120.A Each of the two lower front bearing beams 120 is pivoted about the axis of the first shaft 119 and the rear end of each of these beams is detachably connected, as by means of a bolt 121 projecting through a slot in an integral extension 122 ofthe bearing beam, and secured to a lower supporting beam 123. An adjusting screw 124 can be used as a means for adjusting the position of the rear end of each lower bearing beam 120 with respect to the corresponding supporting beam 123. The two rear transverse shafts 119 are journaled in separate lower bearing beams 125, each having its forward end journaled on an axis concentric with lthe axisA of the last transverse shaft 119 carried by the front bearing beams 120. The rear end of each ofthe lower rear bearing beams 125 is detachably and adjustabl'y connected to the lower supporting beam 123 in a mannersimilar to that of the rear end of each front bearing beam 120, thus permittingindependent [adjusting of each of the lowerv rear bearing beams. Y

The disks 126 carried by the shafts 119 are somewhat larger than the disks 111 carried by vthe stub shafts on Athe upper bear-ing beams 109. Referring to Fig. 2, I have illustrated four disks 1:26 carried by the first shaft 119. These disks are arranged so that the horizontal plane includ-ing the upper edges of the 'disks 126 coincides at least approxima-rely with the horizontal plane including the lower edges of the upper disks 111. The first two or three shafts 119 may each carry four disks 126 arranged substantially as shown in Fig. 2; the remaining shafts 119 preferablycarry only two disks, as shown in Fig. 3. Where only two disks are provided they are arranged closer together than the outside disks -o-n the shafts carrying four 'disks apiece. All of the disks on the yshafts 119 are preferably of the fsame diameter. The rear ends of each upperfront bearing beam and the corresponding lower front bearing beam are cleser together than the front ends of these members, la'nd accordingly the cen-ters of the lower disks near the rear are `closer to the centers of the upper disks 111. Accordingly, as the sheets through the arching mechanism., the center of each sheet is forced upward, while the Aedges are held down, :and in this way the sheets are delivered in arched form from the rear of the arching mechanism. Y

Each of the lower disks 126 is power driven. The ends of the shafts 119 are pro vided with sprocket wheels 127 and adjacent sprocket wheels are connected by a sprocket chain passing over all of the sprocket wheels.

The front sprocket 128 is driven by means of a chain 129 connected to a sprocket wheel on a counter shaft 131 driven from any suitable source. An adjustable idler sprocket wheel 135 is mounted on the lower support-` ing beam 123 vand serves to take up. the slack in the sprocket chain passing over the sprocket wheels on the shafts 119.

I claim:

l. An arching mechanism vfor metal sheets of lower rollers 'and the lower peripheral, edge of the .first set of upper rollers being arranged in substantially the same plane, the distance between the centers of the rollers on yeach shaft and the adjacent upper rollers decreasing whereby the center `of al sheet passed between said rollers will be forced upwardly and the edges held down.

2. An arching mechanism for metal sheets comprising a plurality of shafts, ak set of lower rollers mounted on each 4of said shafts adjacent the center and adapted to engage the lower surface of the sheets, a .plurality of sets 'of upper rollers rotatably supported above said shafts and adapted to engage the upper surfaces of the sheets Aneareaoh edge, the upper peripheral edge of said first set of lower rollers and the lower peripheral edge 'of the first set yofv upper rollers being arranged in substantially the .sa-me plane, the distance between the centers of the rollers on each shaft land the adjacent upper rollers decreasing whereby the center of a sheet passed between said rollers will be forced upwardly and the edges held down and means for driving said shafts. l

'3. Arching mechanism for metal sheet comprising a frame, a plurality of shafts mounted `in said frame,V lower rollers carried by said shafts, bearing members pivotally mounted on said frame and' adj-ust'L able with respect thereto, yupper rollers carr-i'ed by 'said bearing members and arranged in sets, said lower rollers engaging the center lof :the under surface Yof said sheets 'and said upper :rollers engaging the upper surfaces of sai-'d sheets near the edges thereof, the upper peripheral edge Aof the first set of lower rollers and the lower peripheral edge of the first set of upper rollers being arranged in 4substantially the saine plane, the distance between the centers of the *upper and lower rollers decreasing whereby the icc CJI

center of a sheet fed through said rollers will be forced upwardly and the edges held down.

4. Arching mechanism for metal sheets comprising a frame, a plurality of shafts mounted in said frame, lower rollers carried by said shafts, bearing members pivotally mounted on said frame and adjustable with respect thereto, upper rollers carried by said bearing members and arranged in sets, said lower rollers engaging the center of the under surface of said sheets and said upper rollers engaging the upper surfaces of said sheets near the edges thereof, the upper peripheral edge of the first set of lower rollers and the lower peripheral edge of the first set of upper rollers being arranged in substantially the same plane, the distance between the centersof the upper and lower rollers decreasing whereby the center 0f a sheet fed through said rollers Will be forced upwardly and the edges held down, and means for driving said shafts.

5. Arching mechanism for metal sheets l comprising a frame, a plurality of shafts mounted in said frame, lower rollers carried by said shafts, bearinf.r members pivotally mounted on said frame and adjustable with respect thereto, inclined upper rollers carried by said bearing members and arranged in sets, said lower rollers engaging the center of the under surface of the sheets and said upper rollers engaging the upper surfaces of the sheets adjacent their edges, the upper peripheral edges of the first set of lower rollers and the lower peripheral edges of the first set of upper rollers being arranged in substantially the same plane, the distance between the centers of the upper and lower rollers decreasing whereby the center of a sheet passed between said rollers will be forced upwardly and the edges held down.

In testimony whereof I affix my signature.

WILLIAM E. WATKINS.