US1648040A

US1648040A - Finishing machine

Info

Publication number: US1648040A
Application number: US597165A
Authority: US
Inventors: Charles A Bliss
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1922-10-26
Filing date: 1922-10-26
Publication date: 1927-11-08
Anticipated expiration: 1944-11-08

Description

C. A. BLISS FINISHING MACHINE Nov. 8, 1927..

` MM5/WGH Patented Nov. 8,` 1927.

UNITED sTA'riazs PATENT OFFICE.

OHARLESA. BLISS, orl BRADFORD, MASSACHUSETTS, AsSrGNOR To UNITED SHOE MACHINERY CORPORATION, OE rATERsON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

This invention relates to y finishing niachines and is herein shown as embodied in a machine for bufting skived box toes, lcounters or other articles having beveled edges.

Counters to be incorporated in shoes are usually comparatively thick throughout the central portion and are skived to a feather edge, thereby leaving a more or less abrupt shoulder aty the obtuse angle joining 'one surface of the body of the counter with the `beveled edge. The counter is then customarily bued to round off the shoulder and rsmooth thesurfa'ce so that no discomfort will be caused to the wearer of the finished shoe. One well-known machine for performin this Operation has a buffing roll rotatab e at high speed, a feed roll rotatable at a slower speed and provided with a yieldable facing 'which' allows the thicker portion of the counter tobe pressed into the roll, thereby presenting the whole surface of the counter to the roll. For al detailed description of said machine, reference may be had to United States Letters Patent No. 1,078,050, granted Nov. 11, 1913 on application of Elmer Lane. Such machines have been used satisfactorily for butting counters and box toes. Other machines ,used for this operation have had matrices on a feed roll to present the work to a Vbufling roll, the extent and character of the buiiing depending on ythe matrix shape, but these are expensive and necessitate the feeding of the work in proper time relation to the movable matrices. Accordingly, it is an object of this invention yto provide improved mechanism for rapidly finishing counters and similar articles over the whole surface including the entire beveled edge. To this p' end, inaccordance with a feature of the invention means is provided for turning up the beveled edge of the counter or other article into the plane of its central portion and guiding it in a plane tangent to the `buling roll so that no part'of the surface is slighted. In the illustrated construction, a fixed guide plate extends substantially tangentially towards a bufling roll and has a pair of spaced beveled arms to curl up the beveled edges of the work while the central portion of the plate is depressed or out out to allow the thicker parts of the work to sinkk into a yieldable vfeed roll under the EINISHING MACHINE.

action of a presser thus distorting the work and presenting it tothe rollin a distorted. condition. The guide plate being always in operative relation to thek rolls,the work pieces may be presented as fast as convenient without yany necessity for'ytiming the action. l" Referring to the drawings,

Fig. 1 is a` vertical, transverse section through the machine. Fig. 2 is a plan viewof a portion apparatus shown in Fig. 1.;

Fig. 3 is a perspective view offa with some parts in section.`

Fig. 4 is a detail sectional view showing the work being presented to a bufling roll. The buiiing roll 10, herein shown `as a split roll, is fast to a shaft 12 which lisfro'- of the c detail tatably mounted in slidable bearings'the` r .positions of which may be adjusted in any suit-able manner towards or` from a" kfeed roll 14 which has a facing Oflrubber or other yielding material and is fast to a shaft 16 rotatable in fixed bearings. The plane which includesthe axes of .both rolls is inclined and, slidably mountedfupon the frame of the machine parallel to this plane, is a throat plate 18 adjustably "held between upper and lower stop screws y20 and 22. The throat plate 18 hasan opening to allow insertion of the work, and fast tothe plate at the upper side of the Opening is a -presser 24 which vextends ink av direction `oblique to the direction of feed and extends within a short distance jof the bite of the rolls. The pressure 24 is adjustablyy held on the plate 18 by screws 26 whichpass through slots in the presser'` andV are threaded into the throat plate. The kpurpose of the presseris to press against the work and force it into the yielding face Of the feed roll 14.so that a drag may be applied to the work, thisl action being desirable by reason of the fact that the butiing roll 10 rotates at a. much .greater speed than the feed roll in a direction to advance y'the work between the rolls. Behind ther rolls, in the line of feed is a shaft 28having fast thereon the hub of a striker 30 .herein` shown as formed of stiff bristles andv consisting of a segmentofaoylindrical'brush angle toV detiect the pieceA ofv stock aftery it has vvpassed the ystriker and to 'turn it back towards the front of the machine to be i'e- Aextending `downwardly from eachy guide plate and passing through a'slot in the supporting bar 38 so that the positions of the fguidelplatesor matrices. may'lbe adjusted. Each guide plate has al pair ofspaced arms v5 0 extending in `fthe same general direction as the rib andvin a direction substantially ltangential withrespect to the periphery of the buffing roll 10. approximately to the Vpoint o f tangency,the central portion of the plate being cut out-to allow the presser 2t to depress the central portion of a piece of 4worlrinto'the yieldable facing 4of the feed troll.wfrThe`inner edges of the arms are i' .beveled as indicated at 52-and thisvbevel is ,continued aroundthe base of the U as indi# .cated at 54;. u

v ,Thereis :indicated at C a'counter skived atthe edges and havingV shoulders 56 at the junction of the. central portion with the Abevelededges 58., The counter isfed lengthwise to theV rolls, the thick central portion being forced into; the feed roll by the presser y.and the beveledfedges being. curled up by the 4underlying beveled surfacesQ on the arms v5() ofthe guide plate. They edges of the counter are thus supported in the plane of .,the body portion, or in other words, they are ypresented lto .the bufng roll in a plane which is substantially tangent to the roll. Hence 'the beveled4 edges yare .finished over their wholev surface ;v and the shoulders eliminated.

Thegedges 58 are not allowedfto sink .into- 'the facing of the feed roll under the action ofthe presser, although the thicker central portion of the countergisand should be dev,

pressedY intothe feed roll.

. Although the invention 1s set forth in yconnection vwith a particular machine, it should be understood that the invention is not limitedy in the scopeof its application tothe t particularmachine shown and described.

Whatl claimfas new, and desire tosecurc byLetters Patent of the United States is:

and co-voperating Work-guiding plates arranged to engage the oppositefaces of'pieces of work presented to the rolls, that plate 1.111 a machine for-butfing pieces of work l which engages the face ofthe work supported by the feed roll `being Iconstructed with spaced arms arranged to underlie the edges ofthe pieces of work, said plates being 'constructed and arranged Vto-"co-operateto distort the ypieces of work andvpre'sent them to the bufiing roll in a distorted condition so thatl all parts of one of the surfaces inofnorlrhaving beveled edges to the rolls,

said means comprising a fixed guide plate having'spaced armsextendmg between (the rolls and underlyingthe beveled edgesof `the work to hold-'said edges in a plane tangentto the abradingroll. f p A.

8. Ina machine of the class described. an abrading roll, a feed roll having a yieldable facing, a presser to forcethe work into the yieldable facing, and means for presenting a piece of work with beveled edges to the rolls, said means comprising a plate having a, cut-away central porticato. receive the body portionof the workA and raised sides to support the beveled edges inthe planeof the body portion. Y u

il. In .a machine for bufngwork `with beveled edges, a butiing roll, means for rotating the roll in a direction to advance and abradethe work, and a guide plate having a pair of spaced arms extending substantially tangent to the roll, said arms underlying i vthe beveled edges of thefworl; approximately to the point of 'tangency to guide them in a plane tangent to the roll Vas they lare advanced over the guide plate by the rotation of theroll. y I

5. In a machine of the class described, an operating tool, a guide plate for presenting work to the toch-'said plate 4having spaced arms extending towards the tool to support y the sides of the work, the inner edges of the arms being beveled to allow the central portion of the work to be depressed gradually below the sides, and means for passing work over said guide platey to present it to the tool. G. In a machine of the class described, an operating tool, and a guide plate for presenting work to the tool, .said plate being substantially U-shaped with the open'end of the U toward the tool, the inner edges of the U being beveled to allow the central portion of the work to be depressed below the sides as the work is guided over the v'plate to the tool.

7. In a machine of theclass described, an ahrading roll, a supporting barhaving a channel extending towards the roll, a guide plate provided with a work-receiving groove vand a rib extending in the same general direction, said rib being guided by and movable in the channel, and means for clamping the guide plate to the bar in different adjusted positions. n

8. In a machine of the class described, a

frame, an abrading roll journaled in the frame, a throat plate having an opening adjacent to the roll, a supporting bar fixed to the throat plate and extending across the opening, and a pair of guide plates one of which is adjustably secured tothe bar, said plates being spaced at a point within said opening and extending towards the roll to guide to the roll a. piece of work inserted through said opening and between the plates.

9. In a machine of the class described, an abrading roll journaled in kthev frame, a throat plate having an opening adjacent to the roll, a supporting bar von the'throat plate, means for adjusting the bar on the plate, a guide plate fixed to the bai' and extending towards the roll to guide'the work thereto, and means for clamping the' guide plate in different positions on the bai'.

l0. In a machine of the class described,an abrading roll, a feed roll having a yieldable facing, a presser to force tlie work into the facing, and a guide plate on the side of" the Work opposite the presser to modify the effect of the presser on predetermined portions ofthe work.

11. In a machine of the class described, an abrading roll and an opposing feed roll between which the work is passed, and means independent of said feed rollarranged to engage a face of the work opposite to that engaged by the abrading roll for distorting the other surface of the work in its passage through the rolls to vary the action of the j abrading roll on said surface. i

12. In a machine of the class described, a

finishing roll and a guide plate, the position finishing roll, a feed roll, means for rotatingr the rolls, and means for presenting a piece of work having beveled edges to the rolls, said means comprising a fixed guide plate having spaced arms extending between the rolls and underlying the beveled edges of the work to hold said edges in a plane tangent to the finishing roll. n In testimony whereof I have signed my name to this specification.

CHARLES A. BLISS.