US3012261A

US3012261A - Tape applying machine

Info

Publication number: US3012261A
Application number: US789377A
Authority: US
Inventors: Edward F Small
Original assignee: Prime Manufacturing Co
Current assignee: Prime Manufacturing Co
Priority date: 1959-01-27
Filing date: 1959-01-27
Publication date: 1961-12-12
Anticipated expiration: 1978-12-12
Also published as: GB902252A

Description

4 Sheets-Sheet 1 Filed Jan. 27, 1959 FIG. I

E. F. SMALL 3,012,261

TAPE APPLYING MACHINE Dec. 12, 1961 Dec. 12, 1961 E. F. SMALL 3,012,261

TAPE APPLYING MACHINE Filed Jan. 27, 1959 4 Sheets-Sheet 5 IN VEN TOR.

Dec. 12, 1961 E. F. SMALL TAPE APPLYING MACHINE 4 Sheets-Sheet 4 Filed Jan. 27, 1959 FIG.

INVEVTOR. (S/vend United States Patent O 3,012,261 TAPE APPLYIN G MACHINE Edward F. Small, Newton, Mass., assigner to Prime Manufacturing Company, Lynn, Mass., a corporation of Massachusetts Filed Jan. 27, 1959, Ser. No. 789,377 10 Claims. (Cl. 12-59.5)

This invention comprises a new and improved machine for applying adhesive tape to parts of shoe uppers and is characterized by means for automatically setting the operating instrumentalities of the machine for action by the presentation of the work thereto.

Machines of this type have heretofore included a treadle or manual devices which must be depressed or moved by the operator in order to open guides for the work, space feeding devices, or make other preliminary settings of the machine parts. In accordance with the present invention all such devices are eliminated and instead means are provided for initially holding the instrumentalities of the machine in inoperative positions, in combination with a trigger operated by presentation of the work to the machine and connections for moving the instrumentalities into operative relation with the work and the tape.

For example, the machine here shown comprises a rotary work support, a cooperating presser member and a tape-cutting knife together with means for initially holding the presser member and knife in inoperative positions and also a trigger located so that it is naturally engaged by the work as it is presented to the rotary support and connected mechanism for moving the presser member and knife into operative positions. This not only facilitates the work of the operator but improves the accuracy of the operation and eliminates false starts and incidental damage that have been seriousk obstacles and the cause of considerable loss to manufacturers relying upon older types of tape laying machines.

These and other features of the invention will be best understand and appreciated from the following description of a preferred embodiment thereof, selected for purposes of illustration and shown in the accompanying drawings, in which:

FiG. 1 is a view of the machine in side elevation with its parts in working positions,

FiG. 2 is a similar view showing the parts of the machine in their initial inoperative positions,

3 is a fragmentary view of the machine in front elevation,

i233. 4 is a detailed view of the driving gear system,

FiG. 5 is a view in perspective of the tape cutting knife shown on an enlarged scale, l

PEG. 6 is a view in elevation of parts shown in FIGS. 1 and 2 with the spider omitted,

FiG. 7 is a fragmentary front view of the parts shown FIG. 6, and

EEG. 8 is a fragmentary View, partly in elevation and part y in section on the line 3-'3 of FIG. 7.

The frame of the machine takes the form of a hollow column or casing 1d to which is secured a forked bracket 11 in the upper end of which is mounted a work supporting roll 12 upon a transverse shaft 13. The roll 12 as shown in FIG. 3 has a central circumferential section of reduced diameter in which is located a stationary horn 14 having an angled or bevelled periphery which acts as a seam guide when the work comprises the back seam of an upper. In dealing with such work the horn 14 runs in the crease of the back seam of the upperwhile the adjacent margins of the counter are flattened and covered by a length of adhesive tape. The horn is shown as secured to a lug projecting from the bracket 11.

l 3,012,261 ratented Dec. 12, 1961 Also mounted in the bracket 11 is a trigger 15. This is arranged to swing about a pivot 16 and has an inwardly projecting ear which engages the operating button of a microswitch 17. The trigger 15 as shown in FIG. 3 has at its upper end a wide pad which, in the initial position of the trigger is located a short vdistance from lthe circumference of the work supporting roll 12. The spring of the operating button of the switch holds the trigger in this position as shown in FIG. 2 and the trigger is so located that it is engaged by presentation of the work W to the roll 12 and caused to move in an anti-clockwise direction from the position shown in FIG. 2 to the position shown in FIG. l. ln this movement the trigger opens an electric circuit through the microswitch 17 with results which will be presently described. The operator usually presents the work to the machine by holding it with both hands, one on each side of the back seam and of the trigger 15.

A large feed roll Zit is rotatably mounted upon a shaft 21 in cooperative feeding relation to the work supporting roll 12. Y The shaft 21 is rotated clockwise through several reducing gears from a small gear upon the shaft 22 as shown in FIG.. 4. The shaft 22 carries a driving pulley at its outer end not shown and a hand wheel 23. The main shaft 22 operates a second `

gear train

24, 25 secured to a small shaft continuously driving a small feed wheel 26 which as shown in FIGS. l and 2 cooperates with the work supporting roll 12 to engage and advance the work W and the tape T when these elements are introduced between the roll 12 and the small feed roll 26.

A shaft 3i) is mounted on top of the machine casing 10 and upon this is mounted a spider 32 biased always to rock in a clockwise direction by a torsion spring 31 which encircles the shaft 30. The operation of the spring 31 is to hold the machine parts in their operative position shown in FIG. 1. The spider has an arm eX- tending toward the left as shown in FIGS. 1 and 2 and to the outer end of this arm is connected a link 33 which is pivotally connected at its lower end to the plunger 34 of a solenoid 35 fast to the rear side of the casing 10. Electrical connections 36 run from the solenoid 35 to the microswitch 17 with the result that when the trigger 15 is rocked toward the work supporting roll 12 in the presentation of the work the switch 17 is open, the solenoid 35 de-energized and the machine parts are held in their operative positions as shown in FIG. 1 bythe action of the spring 31.

The spider is provided with an upwardly extending arm 37 which engages an adjustable stop 38 and thus limits the clockwise spring activated movement into operative position of the spider and its connected parts. The

spider has also a forwardly extending arm 40 carrying a pivot pin 42 upon which is mounted a rocker 41 of bell crank shape. The shaft 39 in addition to the spider carries an upstanding arm 43 upon which is mounted a spring 44 tending at all times to swing the rocker 41 in a clockwise direction. A downwardly extending arm 45 is pivotallyv mounted at its upper end upon an ear projecting from the machine frame, as best shownin FIG. 6. A cam follower roll 46 is operated byra cam 47 mounted to oscillate upon the shaft 21. The spider 32 has an arm 43 carrying at its lower end a roll which is engaged in a slot Jfig-in the cam 47. 'In FIG. 2 the spider is shown as being rocked into its eXtreme left hand or inoperative position by the action of the solenoid thereby oscillating the cam 47 so that its highest point engages the follower roll 46 and swings the rocker 41 outwardly. The rocker 41, with all the parts mounted thereon, may be swung approximately in an anticlockwise direction about the pivot 42 and will be held into theY machine.

sheet metal leaves as shown in FIG. 3 which are securedV Vthe tape passes.

to. LInrotber words, the .spring 474` is adapted to hold the rocker 41 in either of two positions on the arm 40 viz. that shown in FIGS. l and 2 or an outer position opening the elements of theV machine'for inspection, cleaning, etc,

The cam lfollower roll 46 is mounted upon an arm located behind the arm 45 and which is a part of the assembly mounted to rock about the pivot 42 including K the block 53 referred to hereinafter.

The machine is equipped with a forked presser or work guide 50 which cooperates with the work supporting roll 12 in holding and guiding the work as itis introduced This guide comprises two diverging Y guide 50. The block 53 is rigidly attached to the lower arm-of the belli crank rocker 41; accordingly, when the spider is swung by the Vspring 31 to the limit stop 38 the presser guide 50 is held inoperative position on the work by pressure of the spring'44 upon the rocker 41 backed by the holding pressure of the spring 31 on'the spider which yieldingly prevents :the guide from relaxing its en-` gagement with the work. Y

A tape severing knife 56, hest'shown in FIG. 5, is mounted. upon a shaft 57 journaled in an ear projecting 4 f extends upwardly from the shaft 30 and is pivotally connected at'its upper end tothe link 73.

In operation the advancing edge of the Work trips the trigger, thus causing therinstrumentalities ofthe machine to move into their operative position and holding them there so long as the work engages the trigger. At the instant when the trailing edge of the work passes beyond the trigger the latter swings outwardly closingz the microswitch 17, energizing the solenoid 35 and causing all parts of the machine to reassume their initial positions.

Having thus disclosed my Yinvention and described in detail an illustrative embodimentV thereof I claim as new Vand desire to secure by Letters Patent:

tactedby the work for automatically lowering the forked from the cam 47. Atits rear end the shaft 57 carries knifeY 56 out of the path of the tape tis-indicated in FIG.

guide into contactl with the' work.

2. VA machine for laying reinforcingtape, comprising a rotary work support, an overhead guide initially spaced from theV support and movable into guiding contact with work thereon, a trigger located inA advance of the support and in position to be engaged by work presented thereto, spring means tending to move the overhead guide into operative position, a solenoid connected with the guide and maintaining it normallyV in its overhead position, and connections operated bythe trigger fonde-energizingV the solenoid upon the presentation of the work.

3. Ak machine for laying adhesive tape comprising a work-supporting roll, and a cooperating pivotally mounted presser member, a spider to which said presser memi ber is connected', a spring tending to rock the spider and 1. The tape as best shown in ElG. Vl is led to the machine between guide rolls Vjournaled in the upper end of an arm 62 projecting upwardly from the rear side of the machine frame. From these rolls the tape passes through a wire guide 63 between guide rolls 64 and downwardly through a llat tape guide 39. y

The machine includes automatic means for advancing the tape to the bite of the feed roll 26 when-the'trigger '15 is tripped. and the presser 50 brought intoits operative position. VTo this end a rocker plate 7i) is pivotally mountedV to swing about the axis of a pin 71 in the top of thernachine frame. At its free end the rocker 70 carriesv ank intermittently oscillated feed wheel 72 over which This feed wheel is oscillated forwardpresser member in one direction, and a solenoid energized to rock the spider and presser member in the other direction. v l

4. A machine for laying adhesive tape as described in claim 3, further characterized by a trigger pivotally mounted adiacent to the work-supporting 'roll in position to` be tripped by the work as presented tojsaid roll, an

f electric switch operated by the trigger, and electric connections between the switch and the solenoid.

ly through connections with a horizontal link 73 which is activated by the arm 48. An adjusting'arm 74 con-l nected to the rocker 70'througl1 a curved slot permits adjustment regulating the throw of the feed wheel 72 by moving the point of connectionv of the arm 72 nearer to' or further from the axis of the rocker 70. A clampving plate 75 carried by an arm 76 is arranged to engage' the tape for feeding it and to hold it against retrogression.V The arm 76 is mounted on a pivot projecting transvers'ely4 fromithe rocker 70 and is urged downwardly'by a vertical tension spring 70 as shown in FIG. 6. Itis lifted by a drop-off cam 72 on theV shaft of the rollV 72 and when releasedV by this cam the plate 75 engages the' ly severed end of the tape so thatV it will be engaged ,beiV j tween. the feed roll 26 and the work which. is being-inf troduced upon thework-supportingA roll 12. The arm/48- 5. A machine for laying adhesive tape as described in claim 3, further characterized by an oscillating tape-cuttingi knife, 'and operating mechanism therefor controlled by the release of said trigger bythe Work.

6. A machine for laying adhesiveV tape as described in claim 5, further characterized by a cam oscillated by said spider, and operative connections between the cam on *thel one hand and both the pressure member and knife on the other hand for moving said presser member and knife simultaneously.

7:. A machine:v for applying tape to shoe parts and the `like,`comprisin'g a rotary work support, aV cooperating presser member, and a tape-cutting knife, means for initially holding the presser member and knife in inoperative positions, a trigger operated by presentation of the Work tothe work support and connected mechanism for moving said presser member and knife into operative positions'.

8. A machine for laying adhesive tape on parts of shoe Y uppers, comprising a rotary work'support, an overhead guide initially spacedl above `the support, a trigger located adjacent to the support, tape feeding means, and mechanism controlled by the triggerfor simultaneously lowering the guide into contact with work on the support and actuating the tape feeding means. A c

9. A machine' for laying adhesive tape on parts of shoe. uppers and the like, comprising a Ywork supporting roll, a cooperating feed roll, an oscillatory spider pivotally mounted above said feed roll and having arms eXd tending iny opposite directions from its axis of oscilla-- tion, a solenoid connected to one of said arms, a work guide cooperating with the' work supporting roll` and` con-4 trollably connected to the other of said arms, and a spring acting on the spider in opposition to the solenoid.

10. A machine for laying adhesive tape on shoe parts and the like, comprising a work-supporting roll, a cooperating feed roll, and a cam mounted for oscillation about the axis of the feed roll, a spider mounted to rock on an axis above the cam and having operating connections therewith, a trigger-controlled solenoid connected to the spider for rocking it in one direction and a spring for rocking it in the opposite direction, together with a Work guide movable toward and from the Work-supporting roll through the medium of the spider in accordance with the oscillation of said cam.

References Cited in the file of this patent 5 UNITED STATES PATENTS 2,203,977 Bennett June 11, 1940 2,223,209 Groh et al. Nov. 26, 1940 2,652,166 Johnson Sept. 15, 1953 10 2,871,493 Vachon Feb. 3, 1959