US1880804A

US1880804A - Side taping machine

Info

Publication number: US1880804A
Application number: US289016A
Authority: US
Inventors: Christiansen Christian
Original assignee: ROTARY MACHINE CO
Current assignee: ROTARY MACHINE CO
Priority date: 1928-06-28
Filing date: 1928-06-28
Publication date: 1932-10-04
Anticipated expiration: 1949-10-04

Description

Oct. 4, 1932.

c. CHRISTIANSEN 1,880,804

SIDE TAPING MACHINE Filed June 28. 1928 s sheets-sheet 1 Zizveniar:

u ttarn eys.

1932- c. CHRISTIANSEN 1,880,804

SIDE TAPING MACHINE Filed June 28, 1928 3 Sheets-Sheet 2 In ventor: 3! I TJ W, W$m

Oct. 4, 1932. c. CHRISTIANSEN SIDE TAPING MACHINE Filed June 28, 1928 3 Sheets-Sheet 3 Jnventar ctorneys.

F work.

Patented Got. 4, 1932 AENT Fries CHRISTIAN QEIR-ISJIANSEN, OF LYNN, MASSACHUSETTS, ASSIGNORTO ROTARY MA- CHINE COMPANY, GF LYNN, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS SIDE TAPING MACHINE Application filed June 28,

l his invention relates to machines for applying adhesive tape to the side portions of shoe uppers.

Considerable force or pull must be applied to the end of adhesive tape in order to remove a strip of the tape from the roll. If the adhesive tape is removed from the roll by the pull offered by feed r lls when applying the tape to the work, considerable tension is placed upon the tape causing it to stretch. As a result, when the work is removed from the machine there is a tendency for the tape to assume its normal condition free of tension thereby causing wrinkles and buckling of the It is diiiicult if not impossible to remove such wrinkles from shoe uppers wien they are formed.

It is an object of the present invention to provide a machine of this general type which is ad pted to apply the tape to the work substantially free from tension and thereby overcome these difliculties.

It is a further object of the invention to provide a machine of this type which is arranged with a taoe cutting device adapted to sever the tape accurately at the edge of the work and thereby render subsequent trimming unnecessary.

In a machine embodying the invention the tape may be applied to the work While the latter is being fed between cooperating feed members of any usual construction. In accordance with one feature of the invention the tape is removed from the roll of adhesive tape by a special device interposed between the roll of adhesive tape and the cooperating feed members which may comprise a movable member adapted to engage relatively small spaced areas upon the tape. This device is driven in unison with the feed members but is so constructed and arranged that tape is not removed from the roll unless the free end of tape is held slightly. In accordance with the preferred construction, cooperatingrolls are provided for applying the tape while the work is being fed therebetween and one is so mounted that it may move toward and away from the other. A knife retainer is provided which may be moved substantially to the region of contact of the feed rolls when the 1928. Serial No. 289,016.

latter are separated. The knife retainer is provided with a knife movably mounted therein for severing the tape at the edge of the work, the tape being held against projections upon the retainer during the cutting operation to prevent lateral movement there- Before explaining in detail the present invention and the method or mode of operation embodied therein, it is to be understood that the invention is not limited in its application to the details of construction and arrange ment of parts illustrated in the accompanying drawings, since the invention is capable of other embodiments and of being practiced or carried out in various ways. Also it is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation, and it is not intended to limit the invention beyond the terms of the several claims hereto appended or the requirements of the prior art.

The invention will be more clearly understood from the following description in conjunction with the accompanying drawings; in which: i

Fig. 1 is a front elevational view of a portion of a machine embodying the invention;

Fig. 2 is a side elevational view of the same;

Fig. .3 is a side elevational view of aportion of the machine showing the relation of the parts when the work feed members. are separated;

Fig. i is a front elevational view of the mechanism shown in Fig. 3;

Fig. 5 is a detail plan view of a portion of the tape guide member, and Fig. 6 is a detail view of the work after the tape has been applied thereto.

The machine illustrated in the drawings comprises a frame 10 having an overhanging frame arm or projection 11 which is bored toreceive a shaft 12 for rotation therein. A

.work feed roll 14 is mounted upon the outer end of the shaft 12 and has a gear 15 secured to its outer face, as by screws 16. bracket 17 is adj ustably mounted upon the projection 11, as by set screws 18, and is provided at its free end with a stud 19 for rotatably supporting a roll of adhesive tape. The rotation of the roll 20 upon the stud 19 may be resisted by a suitable tension device comprising a spider having a hub 21 adjustably mounted on the shaft 19 and provided with radial arms 21a: bearing against springs 215.

A bracket 25 is adjustably mounted upon the projection 11 adjacent the roll 14 and for this purpose is provided with a split bearing 26 which is clamped upon the projection 11 by'screws 27.

Shafts

28 and 29 are rotatably mounted in suitable bearings in the bracket 25 and are provided with paddle wheels 30 iand 3l respectively having radially extending blades 24." Suitable lIltQ-

llllEShiP ears

32 and 33 are mounted upon the

shafts

28 and 29, respectively. A shaft 35 is also mounted for rotation in suitable hearings in the bracket 25 and is provided with a suitable gear 36 adapted to mesh with the gear 32 and a pinion 37 adapted to mesh with the gear 15. The

paddle wheels

30 and 31 are so arranged that the tape may pass therebetween with the blades 24 thereon alternately engaging and feeding relatively small spaced areas of the tape. Preferably, the edge 38 of each blade 24 is concaved to center the tape therein as shown in Fig. 4.

A rock shaft 41 is mounted for rotation in suitable bearings in the frame 10 and has a bracket or arm 42 secured upon its outer end as by a pin 43. The outer end of the arm 42 is offset inwardly to provide a crank 42a terminating in a hub 45 adapted to receive a shaft 46 for rotation therein. The outer end of the shaft 46 is provided with a suitable feed member, such as a roll 47, and its inner end is connected by a universal connection 48 with a shaft 49 mounted for rotation in suitable bearings in the frame 10. The

shafts

12 and 49, through the medium of which the upper and lower feeding and

tape applying rolls

14 and 47 are. driven, are driven by mechanism at the rear of the machine, preferably in the manner shown and described in my companion application Serial No. 289,017, filed June 28, 1928. The rock shaft 41 is rocked so as to swing the crank arm 42a preferably by mechanism similar to that more fully shown in the above application. This mechanism comprises a depending wedge shaped arm 100 fixed to the rock shaft 41 at the rear of the machine. Beneath this arm is a stud 101 secured in the frame and carrying a swinging lever 102. The latter is provided with a cam 103 cooperating with the tapered arm 100. The arm 100 and lever 102 are connected by a spring 104, and secured at 105 to'the outer end of the lever 102 is a rod 106 connected at its lower end to a suitable floor treadle.

When the treadle rod 106 is depressed the lever 102 will beswung downwardly thereby swinging the arm 100 outwardly through the spring connection, the arm riding up on the cam 103. This operation results in rocking the shaft 41 thereby swinging the crank 42a downwardly in the direction of the arrow and depressing the feed roll 47 which is permitted through the universal connection 48 as shown in Fig. 4.

Secured to the rock shaft 41 by set screws 51 is an upwardly extending arm carrying a forwardly extending rod 52. Journalled on the frame member 11 is a rock arm 55 having at its lower or outer end a split bearing 56 adapted to receive a sleeve or knife retainer 57 which is secured therein by set screws 58. The rock arm 55 is provided with an arcuate cam slot 73 within which is located a cam roll 74 journalled on the end of the rod 52. It will be seen that when the rock shaft 41 is rocked to depress the roll 47 the arm 50 will be swung at the same time resulting in rocking the arm 55 by virtue of the cam roll and

slot connection

74, 73.

The outer end of the tubular sleeve 57 is provided with a slot 59 adapted to receive a circular cutter or knife 60 mounted upon one end of a cylindrical cutter bar or rod 61 extending through the sleeve 57 and adapted to be reciprocated therein. The portion of the sleeve 57 adjacent one of the lower edges of the slot 59 is provided with relatively sharp projections or teeth 63 adapted to engage and hold the tape when the knife is shifted to sever the tape. The cutter bar 61 is normally held in retracted position by a spring 65 within the sleeve 57 interposed between shoulders 66 and 67 upon the sleeve 57 and bar 61 respectively. A knife operating handle 68 provided with a finger piece 68a is pivotally mounted by means of a lost motion connection within a slot 69 formed in the end of the rod 61 and extends therethrough. One end of the handle 68 is pivotallymounted, as by a pin 71, upon the free end of a bracket 7 2 fixed to the sleeve 57.

A tape guide is mounted-in a slot 75 in the bracket 25 and comprises relatively adjustable members 76 and 77 having offset guide

fingers

78 and 79 depending therefrom. The member 77 is secured in fixed position within the slot 75 by a set screw 80 engaging a threaded opening in the bracket 25 and extending into the slot 75. An adjusting screw 85 is swivelled in an ear 86 upon one end of the member 77 and is provided with a threaded portion 87 adapted to engage a tapped hole in an ear 89 upon the member 76. The adjusting screw 85 may be turned. in order to space the guides different distances apart to accommodate different widths of tape. The bracket 25 carries a projecting work guide 90 which is in the form of a spring plunger acting against a spring 90a (Fig. 2) and adapted to project below the upper edgevof the feed roll 47 along the face thereof so as to guide and aline the edge of the work when applying a line of tape along the edge of the leather, as at T in Fig. 6. When the tape is being applied along a line spaced from the edge ofthe leather, as at T in Fig. 6, the plunger will be forced upwardly against the springs and will bear against the marginal edge portion of the leather. 7

In operation the tape is removed from the roll 20 and threadedbetween the inclined converging edges of the blades 24 upon the cooperating

paddle wheels

30 and 31 and thence downwardly between the tape guide

fingers

78 and 79 into the throat between the feed rolls 1d and 47. The driving mechanism for the

feed roll shafts

12 and 49 is then connected up causing the rotation of the

paddle wheels

30 and 31 in unison with and preferably at a slightly greater speed than the feed rolls 14 and 47. If it is desired to apply the tape at the edge of the work W, as shown at T in Fig. 6, the latter is guided to the throat between the feed rolls by the guide 90. However, if it is desired to apply the tape to an intermediate portion of the work, as shown at T, Fig. 6, the guide 90 may be pushed up against the spring 9011 so as to rest against the face of the leather. As the work vV is fed between the rolls the tape is applied thereto by the pressure of the rolls substantially free from tension, the rolls serving merely to feed and apply the tape supplied by the feed paddles 30 and 31, and to hold the tape at one point so that the edges of'the blades 24 will not move relatively to the tape. The

paddle wheels

80 and 31 rotate to bring the edges of the blades 24 into contact with relatively small spaced areas of the tape and thereby remove the latter from the roll 20. The. tape is centered upon the engaging edges of the blades '24, by the concave surface thereof. When the tape has been applied to the full length of the work the feed roll t? is depressed by the treadle operated mechanism to permit removal of the work WV.

As above described, when the lower roll a7 is depressed the lever 50 will be swung forwardly, swinging the rock arm and bringing the knife holder 57 into the region of contact between the feed rolls, as shown in Fig. 3. The operator then grasps the taped work W with his left hand and pulls it outwardly so as to force or press the tape, at the edge of the work, firmly against the teeth 63 causing them to bite into the tape. The operator then pushes the finger piece 68a with his right hand toward the left in Fig. 4, sliding the cutter bar 61 forwardly and causing the cutter to sever the tape adjacent the line of teeth 63, the latter holding the tape While the cutter is operating. The cutter is retracted by the spring 65.

It will be observed that the invention enables the tape to beremoved from the tape reel and delivered and applied to the work substantially free from tension. In the embodiment illustrated, the blades 24 are so constructed and arranged as to center the tape thereon. The blades 24 will operate to pull off the tape from the reel only when the tape is being fed out by the rolls 14; and 47 so as to take up the slack between the wheel 31 and feed rolls. hen the rolls 1% and 47 are separated and the length of tape beyond the reel-31 is loose, thetape will not be pulled off by the blades. The feed rolls therefore act to hold the free end of the tape so as to permit the tape to, engage the edges of blades 24. When the tape has been applied to the work,

the severing knife is moved into the region ofcontact between the feed members so that it may be operated to sever the tape at the edge of the work and thus make subsequent trimming unnecessary.

It will be noted that the toothed edge 63 of the member 57 acts to grip the tape While the cutter blade moves transversely to the tape to sever it. The cutter acts from the back of the tape, on the non-adhesive face thereof, so that the edge of the blade will not become gummed or coated with adhesive during use. Furthermore the relation of the cutting edge to the gripping edge 63 is such that the cutter will only cut to a depth corresponding to the thickness of the tape, so that the tape may be severed at any point on the face of the leather without cutting the leather.

I claim:

1. In a machine for applying adhesive tape to a piece of work, the combination of means for applying the tape to the work, means for rotatably supporting a roll of adhesive tape, and a pair of rotatable devices having projecting members alternately engaging opposite sides of the tape at spaced points for pulling off the tape from the roll.

2. In a machine for applying adhesive tape to a piece of work, the combination of means for applying the tape to the work, means for rotatably supporting a roll of adhesive tape, and a pair of rotary devices having intermeshing blades for pulling off the tape from the roll.

3. In a machine of the class described, the

combination of a pair of taping rolls for applying tape to the work, means for rotatably supporting a roll of adhesive tape, and a pair of rotary devices having intermeshing proj ections for pulling off the tape from the tape roll.

4. In a machine of the class described, the combination of a pair of taping rolls for applying tape to the work, means for rotatably supporting a roll of adhesive tape, a pair of rotary devices having intermeshing projections for pulling off the tape from the tape roll and means for rotating said device from said taping rolls.

5. In a machine for applying adhesive tape, the combination of cooperating members for feeding work and applying tape thereto, means for rotatably mounting a roll of adhesive tape, and cooperating separately driven members interposed between said roll and feed members adapted to engage simultaneously spaced relatively small areas on opposite sides of said tape for pulling off the tape from the roll.

6. In a machine for applying adhesive tape, the combination of cooperating members for feeding work and applying tape thereto, means for rotatablymountinga roll of adhesive tape, and cooperating movable devices interposed between said roll and feed members adapted to engage successive spaced relatively small areas on opposite sides of said tape to pull off the tape from the roll, said devices each having a concave tape engaging edge for centering the tape.

7. In a machine for applying adhesive tape to the side portions of a shoe upper, the combination of means for rotatably mounting a roll of adhesive tape, a series of revoluble blades adapted to engage relatively small spaced areas on opposite sides of the tape to remove the same from said roll, and means for holding said tape, to prevent movement thereof relative to said blades when said tape is being applied to the work.

8. In a machine for applying adhesive tape to the side portions of a shoe upper, the combination of means for rotatably mounting a roll of adhesive tape, cooperating revoluble blades adapted toengage relatively small spaced areas on opposite sides of the tape to remove the same from said roll, and means for holding said tape to prevent movement thereof relative to said blades when said tape is being applied to the work, each of said blades having a concave tape engaging edge.

9. In a machine for applying adhesive tape to the side portions of a shoe upper, the combination of cooperating members for feeding work and applying tape thereto, means for rotatively mounting a roll of adhesivetape,

' means for moving one of said members into and out of operative relation with the other, and a movable member interposed between said roll and feed members adapted to engage relatively small spaced areas of the tape to remove the same from said roll when said feed members are in operative relation.

10. In a machine for applying adhesive tape to the side portions of a shoe upper, the combination of cooperating members for feeding work and applying tape thereto, one of said members being movable towards and away from the other, a movable knife retainer, a knife movably mounted in said retainer, and means for moving said retainer substantially to the region of contact between said members when said members are separated.

11. In a machine for applying adhesive tape to the side portions of a shoe upper, the combination of cooperating members for feeding work and applying tape thereto, means for rotatably mounting a roll of adhesive tape, means for removing tape from said roll and permitting the same to pass between said cooperating members substantially free from tension, a knife retainer having projections adapted to engage said tape and prevent lateral movement thereof, and a knife movable in said retainer to cut said tape.

12. In a machine for applying adhesive tape to the side portions of a shoe upper, the combination of cooperating members for feeding work and applying tape thereto, one of said members bein movable towards and away from the other, means for rotatably mounting a roll of adhesive tape, means for removing tape from said roll and permitting the same to pass between said cooperating members substantially free from tension, a movable knife retainer, a knife movably mounted in said retainer, and means for moving said retainer substantially to the region of contact between said members when one of said members is moved away from the other. 7 I

13. In a machine for applying adhesive tape to the side portions of a shoe upper, the combination of cooperating members for feeding work and applying tape thereto, one of said members being movable towards and away from the other, means for rotatably mounting a roll of adhesive tape, means for removing tape from said roll and permitting the same to pass between said cooperating members substantially free from tension, a movable knife retainer having projections adapted to engage said tape, a knife mov ably mounted in said retainer, and means for moving said retainer substantially to the region of contact between said members when one of said members is moved away from the other.

14. In a machine for applying adhesive tape to the side portions'of a shoe upper, the combination of cooperating members for feeding work and applying tape thereto, one of said members being movable towards and away from the other, means for rotatably mounting a roll of adhesive tape, cooperating revoluble blades adapted to engage relatively small spaced areas on opposite sides of the tape to remove the same from said roll, a movable knife retainer, a knife movably mounted in said retainer, and means for moving said retainer substantially to the region ofcontact' between said members when one of said members is moved away from the other. I

15'. In a machine for applying adhesive tape to the side portions of a shoe upper, the combination of cooperating members for feeding work and applying tape thereto, one of said members being movable towards and away from the other, means for rotatably mounting a roll of adhesive tape, cooperating revoluble blades adapted to engage relatively small spaced areas on opposite sides of the tape to remove the same from said roll, a movable knife retainer having projections adapted to engage said tape, a knife movably mounted in said retainer, and means for moving said retainer substantially to the region of contact between said members when one of said members is moved away from the other. I

16. In a taping machine, the combination of upper and lower rolls for feeding the stock and applying tape thereto, means for feeding tape between the rolls, a tape cutter support, a cutter carried thereby, means for depressing said lower roll and for moving said outter support into cutting position, and means for operating said cutter.

17. In a taping machine, a rotatable support for a roll of adhesive tape, upper and lower members for feeding the stock and applying the tape thereto, a tape pull off device interposed between said support and members comprising movable blades alternately engaging opposite sides of the tape, and means for depressing said lower member and rendering said device inoperative.

18. In a taping machine a device for pulling off adhesive tape from a roll, comprising a pair of rotary wheels having spaced projections intermeshing and alternately engaging the tape at spaced points on opposite sides of the tape, and means for rotating said wheels.

In testimony whereof I my signature.

CHRISTIAN CHRISTIANSEN.