US2612409A - Brush-making machine - Google Patents

Description

p 30, 1952 E. ABERLE 2,612,409

BRUSH-MAKING MACHINE Filed Aug. 20, 1947 3 Sheets-Sheet l Fig.2. 79 HA INvgNrbR a wamm,m

- YCUM E. ABERLE BRUSH-MAKING MACHINE Sept. 30, 1952 3 Sheets-Sheet 2 Filed Aug. 20, 1947 rllllllllllllll Sept. 30, 1952 E. ABERLE 2,612,409

BRUSH-MAKING MACHINE Filed Aug. 20, 1947 I5 Sheets-Sheet 3 Fig. 5.

INvLNToR Patented Sept. 30, 1952 UNITED PATENT:-' F i f? p Application Au'gt'st 20, "1947 Serial No. 769,561 In NorwayAugust 21, 1946 v The. present invention relates to brush-making machines (of the type comprising-devices forjthe drilling of holes in the brush stocks, for' the forming of. bristle tufts and ot staplesfand for. the lo-'- catingland's'ecuring of. the-bristles in' the'f'holes dr'ill'edin .the stockyand .it. is, the iobj ectof th invention to provide such arrangements that a greater production "capacityqinay be obtained at the same time enabling the mechanical and simple production of brushes of such high quality. and having .such thin ,tufts. which couldprev iously only be manufactured by'han'cl. I

According to the 'invent'on.this .,is accomplished thereby. that the various devices mentioned above are. pivotably mounted about a common axis, whereby. all operations may be performeddn the same position of the brush stock, the devices being combined in. 'atool head which is pivotably mountedfiab'outan axis; Thus by means of this arrangement it:is..possible automatically or semiautcmaticallytd'make abrush merely by bringing. the brush stock mechanically, or. manually against or awayfromthe toolhead, thereby moving and, if desired, "turning the brush stock in accordance with the distance and angle desired between the individual tufts. At thesame time the tendency to inaccuracy and the complexity of machinery consequent .to .thepreviously usual method, wherein separate tools have been used and thebrush stock has; had to -be moved or shifted from tool-to tool; or between operation-stations are avoided. a i v The invention may be embodied inan automaticor semi-automatic machine so that'theturning movement of the tool head andthereciprocating movement of the brush stock holder-to and from the toolhead are controlled by: means of a common camor curve disc, whereby angabsolute synchronismtis obtained as betweenthe separate movements. The control of the other movements ofthe stock holder in the interval between the 1 the machine and mechanical equipment of the same may be-reduced.

On the accompanying drawings a horizontal machine for the making of brushes, with arrangements in accordance with thepresent invention is schematically shown byway of example. "Parts which are not essential for the understanding are omittedforthe sake of simplicity of the drawings,

the same being presumed vtobe familiar to those stance of the friction type which is not shown and which may be operated bythe machine operator by means of a pedal extendin alongthe wholelength of the machine. 3

Two vertical shafts and one horizontalshaft are driven from the main shaft 2. The vertical shafts Land 5 are connected to the main shaft bymeans of bevel gears 6 and 1, respectively, and

drive the crank arrangements of the two tool heads 8 and 9.. In Figure 2 only the support of the tool head 8 is shown,- whereas the head '9 is shown witha tool It for the drillin of holes in the brush stock, which is shown at l I toI-the right in Figure 3,- and a 'tuftertool l2 for the making of bristle tufts and staples and for the securing of the tufts in holes drilled in thebrush stock I I. Further, each of the heads 8 and 9 is provided with a bristle passage 13 with a pressure member l4 as well as a device I5 for the feeding of formingofthe individual tufts may be accomplishedin any manner forinstance by means of a template. U

It is also convenient to provide the pivotable tool head with devices for the feeding of bristles and staple wire in dependence'upon the turning movement of the tool head,'so as to cause an accurate amount of bristles and length of staple wire to be presented at the exact moment-and point wherethe tuft is to be formed in order to be placedand secured in the holejust made in the brush stock at theother end-position of the turningmovement of the tool head. a 1

-Machines provided with arrangementswin accordance with the present invention are conveniently so made that two or more tool heads are controlled by means of one common cam or curve disc, whereby the production capacity of the machine is considerably increased and the size of wire for the production of staples. Each of these tools may be of any known type, for instance of the type described in the German patent specification'No. 524,709.

A disc. I6 isarranged on the shaft 2 between the gears 5 .and l for the control-of the movements, of the. tool heads and the spanner table for the brushstock. The disc 16 ismade with one exterior curved groove ll which, through the medium. of a lever IS-and a connecting link 19 controls theturning movements of the tool heads,

and a lateral groove 23 which, through the medium-of the lever system 2| controls the double reciprocating movement of the spanner table 22.

-The horizontal auxiliary shaft 23, which is connected to the shaft 2 through the gear 24 drives an eccentric disc 25, which in a manner known per se controls the movements of the template used for the locating of the individual and securing of a tuft is just finished in the brush stock H which is spanned on to altable which is not shown in the drawing, but is located perpendicularly to the plane of the paper in the Figures 1, 3, 4 and 5. Under the control of the curved groove 20 the table is moved backwards on the rack 22 perpendicularly to the tool [2 and by means of the eccentric disc 25 the template is moved on so as to cause the brush stock to be moved upwards or downwards and/or sidewards to'a position for the drilling of the next hole. Atthe same time the tool heads 8 and, 9 are turned from the position shown in Figure 4 to that shown in Figure 5, wherein the drilling tool is in working position. During this movement of the tool head the guide ruler 26 is moved together with the head in such a manner that the recess 27 enters into the bristle passage I3 and isfilled with the bristle material whichis subjected to a constant pressure by the spring actuated pressure member 14. During the last part of the movement the picker 28, which is pivotably mounted at 29 in the head I 2 and which is pressed against this head by means Of a spring 30, is turned against the action of this spring by the engagement of the fixed projection 3i on the picker with the nose -32 of the spring actuated holder member so that the point 34 of the picker 28 will pass under the wall 35 of the bristle channel 36 and the projection 31 will fall into the recess 3'! in the member 33.

In the position shown in Figure the drilling tool I0 is in working position so that the same under the action of a cord drive over the pulley 38 will drill a new hole in the brush stock II when the stock carrying table is again swung inwardly. The tufter tool 12 is in position for reception of the bristle for one tuft which is lying ready in a recess 39 in the channel wall 35,

and the conveyor device l5'has, by means of a spring'which is actuated in dependence of the state of movement of the tool head, fed staple wire so that the correct length of wire is present in the tool 12' when the staple forming is to be performed by means of devices (not shown) driven by the shafts 6 and 5.

When the drilling of the new hole is made and the table is again swung outwardly, the tool heads are again swung to tuft forming position. At the beginning of this movement the projection 3| will engage the nose 32 and, in sliding upon the same,press the holder member 33 away from the channel Wall 35 so that the point 34 may-enter the recess 39 and carry along the bristle lying therein. During the continued movement, the recess 2'!- will feed the bristle into the channel 36 and place it in the recess 39, the holder member being momentarily pushed away by a 4 the picker 28 the next time the tool head is swung to drilling position. In the meantime the staple is formed in the tool l2 soas tobeready to be laid around the new tuft just fetched, whereupon the tuft making tool 12 performs its function when the brush stock is again carried against the toolby a new turning of the table on the rack 22.

What I claim as new and desire to protect by 'LettersPatent of the United States is:

1. In a brush making machine comprising devices for the drilling of bristle tuft receiving holes in a brush stock, devices for the formation of bristle tufts to be inserted into the said holes, devices for the cutting and feeding of staple wire to bind the said tufts in the said holes and devices for the placing of'the said bristle tufts in the said holes and fixing the same by means of the saidstaple wire, said devices being combined into a tool head which is rotatably mounted on an axis, and means for moving said brush stock toward and away from said tool head in a path perpendicular to the "said v axis.

2. In a brush making machine comprising devices for the drilling of bristle tuft receiving holes in a brushstock, devices for the formation of bristle tufts to be inserted into the said holes, devices for the cutting and feeding of staple wire to bind the said tufts in the said holes and devices for the placing of the said bristle tufts in the said holes and fixing'the samebymeans of pin 40 on the ruler 26 entering into engagement the said staple wire, said devices being com-' bined into a tool head which is rotatably mounted on an axis, and means for moving said brush stock toward'andaway from said tool head in a path perpendicular to the said axis, a cam disc being provided forthe common control of the turning movement of the said tool head and the reciprocating movement of the said stock.

3. In a brush makingmachine comprising'devices for the drilling of bristle tuft receiving holes in a brush stock, devices for the formation of bristle tufts to be inserted into the said holes, devices for the cutting and feeding of staple wire to bind the said tufts in the said holes and devices for the placing'of the said bristle tufts in the said holes and fixing thesame by means of the said staple wire, said devices being combined into a tool head which is rotatablymounted on an axis, and means for moving said brush stock toward and away from said tool head in a path" perpendicular tothe said axis, a cam disc being provided for the common control of the turning movement of the said tool head and the reciprocating movement'of the said stock and means associated with the said tool head for feeding bristle material and staple wire in dependence upon the turning movement of the said tool head.

ERNST ABERLE.

. REFERENCES CITED The following references are of record in the file of this patent;

UNITED STATES PATENTS Number Name Date 828,473 Gruneberg Aug. 14, 1906 1,083,499 Klemann I. Jan. 6, 1914 1,426,382 Henning Aug. 22, 1922 1,664,420 *Jobst Apr. 3, 1928 2.415.083 Carlson Feb. 4. 1947

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