US983924A - Brush-stapling machine. - Google Patents

Description

M'URDOCK. BRUSH STAPLING MACHINE. APPLIGAT'IQN PILED'AUG; l2, 1907..

Patented Feb. 14, 1911.

4 SHEETS-SHEET 1.

IMMEW wm. mm.. wm.,

WUTJNESSES:

TH: Nomzxs PsiERs ce., wAsymcroN, n. c.

lGqs. .MURDOGL BRUSH STAPLING MACHINE. APPLICATION FILED AUG. 2, 1907.

Patented Feb.14,191'1.

4 sHnBTs-smm'z.

INV'ENTOR WITNESES:

rss Nonms PETERS ca.. wAsumomN, n. c,

G'. s. MUR-1100K. BRUSH STAPLING MACHINE.

APPLICATION :FILED AUG. 2, 1907.

Patented Feb. 14, 1911.

4 SHEETS-SHEET a..

Zij?. 4'.

WITNESSES:

. S. MURDOCK.

Patented Feb. 14, 1911 4 SHEETS-SHEET 4.

WITNESSESI 1HE NoRnls PETERS CoA. wAsHmoroN, u c.

GIIFORD S. MURDOCK, OF DETROIT, MICHIGAN.

BRUSH-STAPLING MACHINE.

Specification of Letters Patent.

Patented Feb. 1li, 1911.

Original application filed January 7, 1904, Serial No. 188,023. Divided and this application filed August 2, 1907. Serial No. 386,722.'

To all whom it may concern:

Be it known that I, GILFORD S. MUBDOCK, a citizen of the United States of America, residing at Detroit, in the county of Tayne and State of Michigan, have invented certain new and useful Improvements in Brush- Stapling Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This application is divided out from my United States application for brush making machine, filed J an. 7, 1904:, Serial No. 188,023.

This invention relates to new and useful improvements in stapling mechanism for brush making machines and has for its object to make a machine which will automatically make and drive the staples into the brush block.

To this end the invention consists in the means for feeding and' cutting off the wire, the mechanism for forming and driving the staple into the brush block to secure the bunches therein and in` the peculiar construction, arrangement and combination of parts all as more fully hereinafter described and shown in the accompanying drawings, in which Figure 1, is a side elevation of a brush machine embodying my invention, Fig. 2, is a front elevation thereof, and Fig. 3, is a plan view of the same, Fig. 4, is a plan view of the vertically movable die block and guides therefor, Fig. 5, is a vertical central section through the die block on the line m-w Fig. fl, Fig. G, is a section at right angles thereto on the line g/-y Fig. 5, Fig. 7 is a perspective view of the feed mechanism and actuating means therefor, Fig. 8 is a similar view showing the mechanism in its forward position ready to release the bunch, Fig. 9, is a vertical central section through the lower portion of the hopper and feed mechanism, Fig. 10 is a perspective view showing the nger mechanism.

1 is the frame comprising the legs 2 and the top or bed 3 secured thereto in any suitable manner and provided with rearward extensions or brackets 1 formed with bearings in which the shaft 5 is journaled.

6 is a bracket secured to the frame in the upper end of which is pivoted the bell crank lever 7 connected with a foot lever 8 atone end by means of the rod 9 and at its opposite end loosely engaging the hub of the movable member 10, splined on the shaft and formed with a tapering face adapted to engage the internal taper face of the loose pulley 11 to form a friction clutch, a spring 12 being provided to normally hold said lever elevated to release the clutch.

13 is a bracket secured tothe bed of the machine near its forward edge and provided with vertical ways in which the plunger 14 reciprocates the latter being connected by means of a link 15 to a lever 16 pivoted at its middle in a double bracket 17 and with its rearwardly extending forked end riding on a cam 18 on the shaft 5 to move the plunger downward. An anti-friction roll 19 is journaled between the forked ends of said lever and a second roll 2O is also carried by said lever coperating with an internal cam 21 formed integral with the cam 18 to return the plunger.

22 is a vertically movable die block traveling in the guide pieces 23 and 241 secured to the machine bed directly below the plunger 14, the bracket 13 being cut away at this point.

25 is a lever fitting in a socket formed in the back of the die block and pivotally mounted between the two forwardly extending ears 26 of the bracket 17 and at its rear end carrying an anti-friction roll 27 coperating with an internal cam 28 on the shaft 5 for reciprocating the die block in timed relation to the plunger.

29 is the die proper made in two like halves preferably semi-circular in cross-section to form a rectangular passage between them for the hammer 30 carried by the plunger 14e each half of the die being longitudinally scored at 31 to receive the ribs 32 on the hammer and also form a space to hold the wire staple before being driven, the die having a transverse cut 33 at its lower end to receive a finger 34 over which the staples are formed, said finger is journaled on a shaft 35 carrying a rock arm 36 connected by a link 37 with the rod 38 guided in a casing 39 and carrying at its rear end an antifriction roller coperating with an internal cam 40 to reciprocatethe parts.

41 is a rod filed away at one side for a portion of its length to form a knife for cutting off the wire, the round face of said rod forming a key for the die.

42, 4:3 are set screws for holding the halves of the die in place and 44 is an angular block interposed between the kniferand set screw 43 to hold the knife at the proper angle.

Extending laterally from the guide piece 24 and integrally formed with the base thereof is the rib45 and 46 is an L shaped bracket secured to the block 47 by machine screws which in turn secure the block to -the bed.

48 is a rectangular bar fitting between the ribs 45 and 46 and clamped against Athe rib 45 by means of the set screws 49 said bar being cut oftn at an angle to correspond with that of the knife 41 and provided with a central'longitudinal aperture for the wire. By placing one or more shims 50 between the ribs and bar the point at which the wire will be cut o can be varied within certain limits to make different sized staples.

The mechanism for feeding the wire comprises a reciprocating plate 51 secured in place upon the bed by the guides 52 and carrying a roll 53 and cam lever 54 pivoted eccentric thereto between which the wire is fed, a spring 55 holding the cam against the roll.

56 and 57 are levers pivotally connected together at their adjacent overlapping ends and pivotally mounted upon the bed at their middle, the free end of the lever 5G being connected to the plate 51 and thc free end of the lever 57 coperating with a cam 58 to reciprocate the plate 5l to feed the wire, a second roll 59 and cam lever 60 similar to the roll 53 and lever 54 being arranged upon a. stationary part of the feed table so that these willl grip the wire while the plate 51 carrying the dogs 53, 54 moves back to take a new hold on the wire the dogs 59, 60 being released as the plate 51 moves forward Vto feed the wire.

61 is a slide made in two parts G2 and G3 guided upon the bed between the guides G4 and connected together free to have a limited movement in relation to each other by the screws 65 traveling in the slots 66, the part 62 being formed with a longitudinal rib 67 and connected at its rear end with the cam G8 on the shaft 5 through the medium of the levers 69 pivotally connected together at their adjacent overlapping ends and pivoted upon the bed at their middle, the part 63 of said slide being grooved at its forward end for the passage of the staple and at the same time forming' a guide for the rib 32 on the hammer when in its forward position at which time with the slides 61 on one side and the block 47 on the other a closed pocket will be formed for the brush material so that when the finger 34` is retracted and the hammer descends an unobstructed passage will be presented to double up and force the bunch through the openended spout 70 and drive the same into the socket in the wooden brush block and secure in place therein with a staple. The spout 70 is preferably provided with two pivoted spring backed lingers 71 to restrict the passage in starting so as to double up the bunches short in going through thus insuring more evenness in the material.

72 is a feed hopper above the slide 6l provided with a slitted bottom open at its front edge and composed of two springs 89 between which the finger 73 pivoted on the part 63 of the slide reciprocates.

74 is a trigger pivoted in the forward end of the finger and normally held in its closed position by a spring 75.

76 is an under cut slot in the block 47 cooperating with the curved end of the finger 7 and 77 is a flat leaf spring forming a stop to engage the lower end of the trigger and trip the same to release the bunch when in its forward position as shown in Fig. 8 suitable guides being formed in the front edge of the block 47 for the hammer 30.

78 is a rib on the feed table on which the finger 73 reciprocates to hold it in its elevated position as shown in Fig. 9, the un derside of said linger being cut away at an angle so that as it clears the inclined end of said rib it will permit the finger to drop with the bunch in front of the slide 6l.

79 is a cam on the shaft- 5 acting through c the medium of the levers 80 to finally move the part 63 of the slide forward the length of the slots 66 after the part 62 has reached its extreme forward movement in order to bring the bunch in front of the slide and dic rectly over the discharge opening.

81 is a forwardly project-ing finger integrally formed with the part 63 and with the finger 73 adapted to support the bunch on each side of its middle so that as the hammer 30 strikes the bunch between said fingers 73 and 8l it willwith the aid of the fingers 7l double up the bunch and force it through the spout into thesocket in the brush block. 82 is the work supporting table having a screw-threaded shank vertically adjustably secured in the arm 83 by the nuts 84 the table being adjustable to any angle by means of the slotted link 85 and clamping bolt 86.

Having thus fully described the invention it is intended to operate as follows: Motion being imparted to the shaft 5 and through the medium of the cam 58, levers 56, 57 and plate 51 the wire is fed under the die block. As soon as the block descends through the medium of the lever 25 and cam 28, the wire a staple. At the same time the slide 61 having moved backward across the slotted bottom of the feedhopper and the mouth of the finger 73 filled withV the corn or other 125 fibrous material commences its forward movement through the medium of the camV 68 and levers 69 connected to the part 62 of the slide which moves forward first from c the position shown in dotted lines Fig. 7 V130 lio is out off and formed over the finger 34 into until it abuts against the material in the mouth of the finger' 73 as shown in full lines which forms a stop and thus carries the part G3 with it and t-he whole slide 61 moves forward to the position shown in full lines Fig. 7. At this time the lever 8O strikes the projecting end 87 of the part 63 and moves it forward as shown in F ig. 8, so that the shoulder S8 on the underside of the finger 73 clears the end of the rib 78 and permits the finger 7 3 with the bunch to drop in front of the slide (Sl when the stop 77 will strike the lower end of the trigger 7 el and release the bunch. At this time the hammer 30 and die block 22 descend through the medium of the levers 16 and 25 and cut off', form and drive the staple over the bunch and into the brush block supported on the support 82, the bunch being doubled up in passing through the spout 70 by the spring fingers 7l.

lVhat I claim as my invention is l. A staple forming and driving mechanism comprising in combination a hammer, a die block sleeved on the hammer, means for moving the die block and hammer one in advance of'the other, a finger adapted to project beneath the hammer, means for reciprocating said finger, a two part die in the die block having a cut out portion adapted to straddle the finger', a cutter having a shank portion forming a key for said die, a set screw for said cutter and means for intermittently feeding' the wire to said cutter.

2. A staple forming and driving mechanism comprising in combination a reciprocating hammer having ribs, a finger adapted to be projected beneath the hammer, a two part die provided with grooves, sleeved on the hammer and having a cut out portion adapted to straddle said finger, a traveling die block carrying said die and a wire cutter having a shank portion forming a key for said die.

3. A staple forming and driving mechanism comprising in combination a reciprocating hammer having ribs, a finger adapted to be projected beneath the hammer, a two part die provided with grooves, sleeved on the hammer and having a cut out portion adapted to straddle said finger, a traveling die block carrying said die, a wire cutter having a shank portion forming a key for said die and set screws for said die and cutter, means for moving the die block and hammer one in advance of the other and means for intermittently feeding the wire to the cutter.

4l. A staple forming and driving mechanism comprising in combination a reciprocating hammer, a die block sleeved on the hammer, a two-part die carried by the die block, a cutter carried by the die block and forming a key for the die, and set screws whereby the die is held in position in the block.

A staple forming and driving mechanism comprising in combination a reciprocating hammer, a die block sleeved on the hammer, a finger adapted to project beneath the hammer, a two-part die carried by the die block adapted to straddle said finger, a cutter' forming a key for the die carried by the die block and a wire guide in proximity to the cutter.

6. A fastener inserting mechanism comprising a reciprocating hammer and a staple forming sleeve, a removable die in said sleeve and in contact with which the hammer moves, and a key for holding said die in place, said key forming a cutter.

In testimony whereof I afiiX my signature in presence of two witnesses.

GILFORD S. MURDOCK.

Vitnesses C. R. STICKNEY, O'r'ro F. BARTHEL.

Images