US1926152A - Impression coating machine - Google Patents

Description

Sept. 12, 1933. F. D. KINNEY IMPRESSION COATING MACHINE Filed June 29, 1929 5 Sheets-Sheet l p 1933. F. D. KINNEY IMPRESSION COATING MACHINE 3 Sheets-Sheet 2 Filed June 29, 1929 ...L i---ri-- 7 A/w Z4 Sept. 12, 1933.

F. D. KINNQEY 1,926,152

IMPRESS ION COATING MACHINE Filed June 29, 1929 3 Sheets-Sheet 3 I -i 74 r a 00 I I ma 4 9490 86 Patented Sept. 12, 1933 I r p i U-NlTED STATES PATENT o FIcs 1,926,152 nuPaEssroN COATING MACHINE Fay D. Kinney, Southbridge, Mass, assignor to. United Shoe Machinery Corporation, Paterson, N. J., a corporation of New Jersey Application June 29, 1929. Serial No. 374,693 15 Claims. (Cl. 91- -47) This invention relates to machines for coating of an excess amount of paste to the applying defined areas of sheet material with paste, cemember which may be reduced subsequently as ment, solvent or other medium. It may be desired without danger of leaving bare spots. utilized with particular advantage in the manu- The advantageous uniform distribution of paste facture of boots and shoes for coating shoe parts within the limits of its zone is thus reliably 60 with paste, and under the term paste I include effected. broadly all types of liquid adhesive. These'and other features of the invention will In the manufacture of rubber-soled shoes, it e best understood and pp ia d o t f0 is the practice to apply a coating of rubber cement w g d p Of a preferred embodiment to the margin of the vamp in a defined band or thereof, selected for purposes of illustration and 65 zone extending'about the forepart thereof. The h wn in h c mp wi in whi h location and boundary of such zone of cement l s a t i e in ide vamust be determined'with extreme accuracy for M011; if any portion thereof shows in the finished shoe Fig 2 is a 101ml V 1 1 Carrier 0 th past above the line of the foxing, the shoe is regarded pply member;

as a second and cannot be disposed of at full Fig. is e View of'llhe machine in frontrelevaprice. It is equally important to ensure uniform tion, With Certain DeYBS'ShOWII in o distribution of the cement within the limits of 4 8a Sectional View on the line 4-4 of the desired zone as otherwise it is impossible to i i i secure complete vulcanization of the sole and I 5 is a p View Of a P Q Of'the W k' v upper. One important field of use of my invenp tion is the handling of such work although its vFig- 6 is a detail Sectional VieW Of One Of the application is not limited to this or to any paru d a ticular type of ork, Fig. 7 is a View in perspective of the paste- In one aspect, my invention consists in a maapp membel p chine having a ork support a d presser plate The invention is herein shown as embodied in relatively movable to engage and flatten a piece e molding D n machine of W OW of sheet material, such as a shoe part, associated type, eemplising a frame 0, St nary Side rods with a member having paste-applying face of 12 carrying a stationary cross head 14 and guiddefinedarea movable through a slot in the presser a v i y moving Cross head 16 Which is plate to apply it charge of paste in Zone of raised and lowered by the action of toggle links, correspondingly defined area to the accurately a Portion of one 1111K 13 being Shown in l t d d flattened k piece The work may The movable cross head 16 is shown in its lower be thus positioned with a high degree of accuracy position in Fig$ 1 and 3, Where it is maintained and maintained'in the most favorable condition at rest when the maehinecomes t rest In t 90 for the reception of the paste while the paste is initial position it efiolde the p a ree a d delivered in a uniformly distributed zone of sharp unobstructed acce$s to the platen which it e1] defined t1 ries, for the purpose of removing the coated work Among other features, I provide a novel work and for Presenting and locating a fresh piece 40 support employing suction openings for holding positign to be Coatedthe work in place after it has been accurately The platen'ol Work Support 19 a d by the located thereon, thus preventing inaccuracies due movable Cross head 16 includes a on a t di l t of th work her 24 surrounded by an outer'wall and covered,

The paste-applying mechanism includes a deby a Perforated top Plate 22 which Supports a tacha ble and replaceable member having a, paste... covering 20 0f yielding material, such as fibre O l applying face of defined area, d t is refer rubber, upon which the work is directly placed.

ably bounded by b which limit th applied Perforations 26 extend through the covering 20 paste to a zone of clean-cut outlin I supplyand the plate '22 and constitute suction openings ing paste to the applying member, 1 preferably by which the work is held in position upon the utilize a transferring roll which is bodily movable. p during the p pp y g p ration.

across the face of the applying member and Atiits rear side, the suction chamber 24'com-.

driven in a direction reverse tothe direction in municates With an eXhauSt p p 23 (Fig;

which it would be turned by rolling contact with through a valve 30 which is operated automatithe applying member during its travel across said orally to cut off the suction when the cross head 110 member. This construction ensuresthe delivery 16 is moved into its lowermost position and to establish the suction connection when this cross head is elevated toward its operative position. To'this end, an operating rod 32 is connected to the valve arm and is arranged to bear against a stationary portion 33 of the machine frame when the crosshead 16 is in its lower position. The rod is provided with a collar 36 upon which acts a compression. spring 34, positioned between said collar and a bracket 3'7 attached to the head 16 and tending always to hold the lower end of the rod 32 in contact with the frame. When the cross head 16 is elevated, the rod 32 drops under the impulse of the spring 34 until stopped by contact of a collar 35 with the bracket 37, swinging the-valve in an anti-clockwise direction and openingthe connection so that the work will be held in place by suction throughout the movement of the cross head.

The platen is provided with suitable gauge pins 38 to assist the operator in accurately locating the work thereon. Each of the gauge pins is mounted in a casing 40 and is backed up by a compression spring, allowing the gauge to retract when it encounters the overhead presser plate but maintaining it in elevated position, as shown in Fig. 6, while the cross head occupies its lower or work-receiving position. The gauge pins areshown in Fig. 5 as located to position a vamp by reference to its longitudinal axis, the vamp being indicated in dotted lines. It will be apparent, however, that the platen may be equipped with additional gauge pins, located at appropriate points, for positioning work pieces of any desired shape or size.

The paste-applying mechanism is mounted upon the upper stationary cross head 14 in a frame which comprises a plate 42, to which is bolted a pair of side plates 44, and the flange 50 f of a stationary, centrally-located post 52. The

post 52 has a collar 62 secured thereto and is surrounded by a cylindrical sleeve 58 having a circular flange 66 formed integral with its lower end. The sleeve 58 is spaced from thepost 52 by the stationary collar 62 and by an inwardly extending circular flange formed at the upper end of the sleeve, and in the chamber thus formed is located a compressionspring which tends at all times to hold the sleeve 58 in its uppermost position and in contact with the flange 50. The lower end I 70 having a pair of marginal ridges or ribs '72 (Fig. 7) bounding its lower or paste-applying face and with its intermediate surface corrugated, as shown in Fig. '7. A series of screws are threaded into the upper face of the bar '70 and extend 65 l through approximately radially positioned undercut slots 69 in'the carrier ring 68, as shown in Fig. 2. The bar 70 is, therefore, securely mounted upon its carrier ring 68 and it will be apparent that other bars of different contour may be conveniently substituted by being placed beneath the slots 69 and drilled for the reception of attaching screws.

The lower end of the post 52 is reduced to re- 7 ceive adisk-shaped head 54 which fitswithin'the bore of the sleeve 58 and carries a stationary work-engaging or presser plate 48 brazed or oth- When, therefore, the operator erwise secured thereto. This plate 48 is reinforced and supported aboutits edges against upward pressure by a filler plate 46 secured by brazing, or in any other suitable manner, to the lower edges of the side plates 44, above referred to. The presser plate 48 is slotted to receive the paste-applying bar '70, as shown in Figs. 3 and 4. The parts are so arranged and proportioned that normally the tops, here the lower faces of the limiting ribs 72 of the paste-applying bar, are flush with the lower surface of the presser plate 48 as shown in Fig. 3. When the sleeve 58 is depressed, the bar 70 is moved downwardly and protrudes through the slot in the presser plateand in this position engages the surface of the work and deposits its charge of paste thereon, as will presently appear.

Paste is delivered to the operative face of the bar '70 by a roller 96, mounted upon a transverse shaft 94 in a paste receptacle '76. The paste receptacle is provided at its corners with upwardly-extending arms 78, each of which carries a short shaft 86 having secured thereto a roller and a pinion 82. The rollers 80 run upon tracks formed in the outer faces of the side plates 44 and constitute trucks for carrying the receptacle '76 back and forth in a horizontal path beneath the presser plate 48. The receptacle is provided with a wire bail 77 (Fig. 1) extending forwardly and across the front of the machine head, which the operator may grasp in effecting the movement of the receptacle. The pinions 82 mesh with racks 74 secured to the side plates 44 adjacent tothe tracks for the rollers. One of the rearmost studs 86 carries at its outer end a sprocket wheel 88, upon which runs a sprocket chain 90 which drives a smaller sprocket wheel 92 upon the shaft 94 of the paste-applying roller 96. This roller 96 is thus rotated reversely to the direction in which it would be turned by rolling contact with the presser plate 48 during its travel acrossthe bar 70 and at a fairly high linear speed, so that the upper surface of the roller 96 wipes over the bar 70 and acts to supply an excess amount of paste'to the surface of that bar.

The receptacle "76 contains also a scraper 99 comprising a transverse plate or blade carried between the forwardly-extending arms of a pair of bell crank levers 98 (Fig. 1) pivotally mounted within the receptacle and normally urged in an anti-clockwise direction by tension springs 95, so as'to maintain the scraper yieldingly against the lower face of the stationary presser plate 48. When the receptacle is pulled forwardly by the operator, the paste-carrying face of the bar 70 is filled with paste by the action of the roller 96 and the face of the presser plate 48 is more or' less coated at the same time. When the receptacle is moved rearwardly, the scraper 99 acts to clean the face of the presser plate and remove 13 all paste except that retained between the marginal ribs of the paste-applying member 70.

In order to cause the paste-applying bar to protrude through the presser plate 48, a hand lever 61 is pivotally mounted upon a bracket 140 63 on the stationary cross head and connected to a downwardly-extending rod 65 which passes through a central bore within the post 52 and engages the cross pin 64 which is set in the sleeve 58 and slides in the slot 59 of the post 52. 145

depresses the hand lever 61, the sleeve 58 is lowered and the paste-applying bar projected downwardly beyond the surface of the presser plate 48.

In using the machine herein disclosed for 2113- 150 ply-ingaband or zone of paste to a vamp'such asthat illustrated in Fig. 5, the operator positions the vamp in fiat'condition upon the platen with theassistance of the gauge pins 38 while the crosshead is in its lower position, as shown in Fig. 1. He then moves the paste receptacle forwardly and rearwardly, delivering a charge of paste to the paste-applying bar 70. The machineis then started, whereupon the lower cross' head is elevated to a position in which the work is located close to or in touch with the presser plate 48, which tends to flatten the. work and remove any wrinkles that may occur in it. The machine comes to rest in this position, whereupon ,the operator swings the hand lever 61, forcing the paste-applying bar '70 downwardly and into contact with the surface of the work; As the latter is supported in a yielding manner, a perfect contact is secured throughout the extent of the pasteapplying member and substantially all of the paste on the bar is transferred to the surface of the vamp in a definite curved zone determined accurately by the limiting ridges '72 of the bar because of the greater adhesion of the paste to the work than to the metal bar 70. The lever 61 is then released and the machine started again to return the platen and the coated work to initial position. v

It will be understood that the illustrated machine is adapted to be interchangeably equipped with paste-applying members of any desired outline and with correspondingly slotted presser plates. The curved V-shaped bar '70 is illustrated merely as an example of the type of paste-applying member useful in the operation of cementing Vamps and its design is, therefore, of secondary importance.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

l. A machine of the class described, having in combination, a support movably mounted in the machine to carry the work into paste-receiving position, and a recessed paste-applying mem- I her having a paste-carrying face bounded by spaced marginal ribs disposed in a plane parallel to said support and arranged to engage the work and apply paste thereto in a defined zone.

2. A machine of the class described, having in combination, a movable work support, means for moving said support to carry the work into paste-receiving position, and a normally inverted recessed paste-applying member having spaced marginal ribs limiting an elongated paste-carrying face on which a charge of paste is carried, said member being arranged to engage the work and deposit the charge of paste thereon in a zone defined by said marginal ribs, said'work-supportmoving means acting to raise the work into coir tact with the inverted paste-applying member.

3. A machine of the class described, having in combination, a work support and a pasteapplying member of defined area arranged for relative movement to effect the application of paste to the work, and a paste-supplying roll movable forward across the face of said applying member and being rotated to move the contacting face of the roll in the direction of forward travel.

4. A machine of the class described, having in combination, a Work support and a recesed pasteapplying member of defined area arranged for relative movement to effect the application of paste to the work, a paste-supplying roll movable forward across the recessed face of said applying member, and means for rotating said roll in a direction reverse, to that which would be imparted by simple rolling contact and at such linear speed as to deliver an excessof paste to said recessed member.

apply. paste in a zone of corresponding shape to i the work while so engaged.

6. A machine of the class. described, having in combination, a presser plate and a work support relatively movable to engage the work, said presser plate having a curvedslot therein,

means for positioning a vamp on the work support in predetermined relation to said slot, and a curved elongated paste-applying member movcurved zone to the vamp while so engaged.

7. A machine of the class described, having in combination, a presser plate having a slot, apaste applying member havinga ribbed face the tops of the ribs of which are initially disposed fiush with said plate, a paste-supplying roll movable across said presser plate and applying member to coat both, filling the spaces between the ribs of said applying member, and a scraper movable across said plate and applying member to clean the face of the plate and level the paste upon the paste-applying member.

8. A machine of the class described, having in combination, a work support, ,a cooperating presser plate having a slot, a paste-applying member having spaced marginal ribs located flush with said plate and defining a paste-supplying face, a paste-supplying roll movable across said plate and applying member, and a scraper arranged to follow said roll to clean the presser plate while leaving a charge of paste between the ribs of the paste-applying member.

9. A machine of the class described, having in combination, a work support and paste-applying mechanism relatively movable toward and from each other, a suction chamber associated With the work support and means responsive to said relative movement arranged automatically to render operative said suction chamber to hold the work in position on the support during such relative movement.

10. A machine of the class described, having in combination, a work support and paste-applying mechanism relatively movable from separated work-receiving position to adjacent paste-applying position, suction means associated with the work support, being shut off to permit the work to be freely positioned upon the work support in the separated position thereof, and means for automatically rendering the suction effective as the work support approaches paste-applying position.

11. A machine of the class described, having in combination, a work support and a presser plate movable to engage and flatten a piece of sheet material over substantially its entire area, said able through the slot to apply paste in a defined.

presser plate having a slot in its surface, and a in combination, a work support, and paste-ap plying mechanism including a yieldingly mounted flanged sleeve, aslotted ring secured to the flange of the sleeve, and a curved bar detachably secured to said slotted ring and having a applying face of defined area.

13. A machine of the-class described, having in combination, a work support, and paste-applying mechanism including a stationary slotted post, a sleeve yieldingly mounted thereon and having a cross pin extending through the slot in the post, a paste-applying member of defined area carried by the sleeve, and means acting axially of the post upon said cross pin to move the sleeve and its associated paste-applying member toward the work support. I

14. A machine of the class described, having in combination, a work support, a presser plate, a member associated therewith having a paste-applying face of defined area, a paste container havpasteing a transferring roll movable bodily across the face of said presser plate and said applying member, means for rotating the roll to cause its periphery to wipe over the applying member, and means for scraping the face of the presser plate.

15. A machine of the class described, having in combination, a vertically movable head having a Work support, and. a stationary head having paste-applying mechanism including a post carrying a yieldingly mounted member having a defined paste-containing face, a carriage movable transversely across said face and having a paste container and a transferring roll, and. means for positively driving said roll when the carriage is reciprocated.

FAY D. KINNEY.

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