US2289252A

US2289252A - Material working apparatus

Info

Publication number: US2289252A
Application number: US380757A
Authority: US
Inventors: Dorweiler Charles
Original assignee: Western Electric Co Inc
Current assignee: AT&T Corp
Priority date: 1941-02-27
Filing date: 1941-02-27
Publication date: 1942-07-07
Anticipated expiration: 1959-07-07

Description

July 7, 1942 c. DoRwElLER 2,289,252

MATERIAL WORKING APARATUS Filed Feb. 27, l1941 Sheets-Shet 1 @l We@ L v ma/ 770/?/VEY July 7,1942.

C. DORWEILER MATERIAL WORKING APPARATUS Filed Feb. 27. 1941 2 Sheets-Sheet 2 Patented July 7, 1942 MATERIAL WORKING APPARATUS Charles Dorweiler, Elmwood Park, Ill., assignor toy Western Electric Company,A Incorporated, New York, N. Y., a corporation of New York .Application February 27, 1941, Serial No. 380,757

14 Claims.

This invention relates to material working apparatus and more particularly to apparatus for removing blanked articles from sheet material.

An objectl of this invention is to provide a simple, practical and ecient apparatus for re-A moving blanked articles from sheet material.

In accordance with one embodiment of the invention, as used in connection with a compound punch and die, there is provided an apparatus arranged between the punch and die and a takeup device for blanked strip material, after the removal of `the articles therefrom, comprising a housing enclosing means for supporting and guiding the blanked material along a path providing'a plurality of horizontally moving spaced parallel lengths of taut material. Mountedin the housing are a plurality of independently ro tatable paddles or beaters extending laterally over an intermediate length of the taut material and each normally urged downwardly to engage the material by an associated spring. A conn tinuously rotating shaft journaled in the housing has fixed thereto a plurality of cams, one for each paddle, each cam being arranged to periodically engage the outer end of its associated paddle 'at diiferent intervals in the rotation of the shaft to rock the paddle upwardly against the tension of its spring and upon'the lobes of the cam being disengaged from the end of the paddle to be drawn downwardly by the spring to strike or beat the upper face of the material. Thus, as the Cil blanked strip material passes below the paddles,

it is repeatedly struck or vibrated by the paddles and the blanked articles are projected therefrom. Means is provided for limiting the downward movement of the paddles when no material is in position and for elevating the paddles to facilitate threading the blanked material through the apparatus. Downwardly inclined plates below the length of material, which is vibrated by the pad dles, serves to direct the removed articles out of the path of a length of material advancing therebelow into a funnel-shaped bottom portion of the housing and into a container thereunder.

Other objects and advantages of this invenn tion will more fully appear from the following detailed description, taken in connection with the accompanying drawings, in which:

Fig. l is a fragmentary front elevation of the apparatus embodying the features of this invention as used in connection with a compound punch and die, a device for drawing the strip material through the punchand die, and a takeup device for the material after the removal of the articles therefrom, which are illustrated diagrammatically;

Fig. 2 is a'fragmentary enlarged end view of the apparatus taken on the line 2-2 of Fig. l;

Fig. 3 is an enlarged plan sectional view taken on the line 3-3 of Fig. 4; and

Cal

Fig. 4 is a vertical sectional view taken on the line 4 4 of Fig. 3.

Referringto the drawings, particularly to Fig. l, one embodiment of this invention is illustrated as used in connection with a compound blanking punch and die, indicated at I0, which is operatively connected to a punch press frame I I and a reciprocatory ram I2 of the punch press, which is fragmentarily illustrated. Carried on the frame II is a set of feed rolls I3, by means of which blanked strip material, indicated at I4, is intermittently advanced from a supply in coil form (notshown) in a horizontal plane through the punch and die I il from right to left,y as shown in Fig, l. The scrap strip'material is taken up in coil form after the articles have been removed from the blanked material I4 by the article removing apparatus of this invention, indicated generally by the numeral I'I, by a suitable intermittently driven device I8. Since the compound punch and die I0, feed rolls I3 and the take-up device I8 are well-known in the art, a complete disclosure thereof is not believed necessary to a full understanding of the present invention. At the termination of each advance movement of the strip material I 4 by the feed rolls I3, the compound punch and die I0 is operated during an advance and return movement of the ram I2 to vblank articles I9 (Figs. 3 and 4) out of the material and reinsert the articles therein. After the articles I94 have been reinserted in the material I4 and during the continued return movement of the ram I2, the feed rolls I3 and the take-up device I8 are operated in timed relation to respectively advance the blanked material and take -up thestrip scrap thereof emerging from the article removing apparatus Il.

The article removing apparatus I7, which is arranged between the feed rolls I3 and the takeup device IS, comprises a housing 2i) of angle iron and plate construction which includes a hinged top wall 2|,

end walls

24 and 25 and front and

rear walls

26 and 21. The end wall 25 adjacent the feed rolls I3 is formed with a suitably arranged slot 28 (Fig. 4) for the entrance of the blanked material I4 from the feed rolls I3 into the housing Ziand the end wall 24 adjacent the take-up device I8 is provided with a hinged door 29. The opening in the end wall 24 closed by the door 29 extends below the lower edge of the door to provide a slot 3| (Fig. 2), when the door is closed during the operation of the apparatus, for the emergency of the scrap strip material from the,` housing 2Il. In the upper portion of the front wall 26 is a framed shatter-proof glass plate or window 32 which is slidable upon opposite vertical slideways 33 (Fig. 3) provided on the front wall. When the window 32 is in its upper position during the operation of the apparatus a pivoted catch 34 carried by the front wall 26 cooperates with a pin or handle 35 attached to the frame of the window to hold the window in its raised position. The hinged top wall 2|, door 29 and sliding window 32 serve to facilitate the threading of the strip blanlaed material I4 through the apparatus. Y

Extending between and secured to the inner faces of the

end walls

24 and 25 at the top of the housing 20 is a frame 36 of angle iron construction (Figs. 3 and 4) comprising horizontal and vertical spaced pairs of supporting members 31 and 33, respectively. Carried by the frame 36 are horizontally arranged

circular guide rolls

39, 49, 4I, and 42 over and around which the blanked strip material I4 is advanced in passing through the housing 20. The diameter of the guide rolls 39 and 40 over and under which the material I4 with the articles I9 still carried therein travels is such that the articles will not be deformed during their travel therepast, during which movement some of the articles may be dislodged from the material.

It will be observed referring to Fig. 1 that the material I4, in its passage through the housing 29 guided by the

rolls

39, 49, 4I and 42, takes on an S formation and results in three parallel

horizontal lengths

45, 46 and 4'I of material. The upper length 45 of the advancing material between the entrance slot 28 in the housing end wall 25 and the guide roll 39 is supported on a horizontal shelf 48 (Fig. 4) carried by the frame 35. It will be observed that the intermediate length 46 cf the material is supported solely by the

spaced guide rolls

40 and 4| and the lower length 4I of the material is drawn around the roll 42. Below the length 41 of the material is a guide plate 49 attached to the frame 36 upon which the material is supported during the threading of the material through the apparatus. By this arrangement of advancing the material through the apparatus the length 4G of the material from which the articles are removed is at all times held taut. Supported from the frame 36 between the

lengths

46 and 41 of material is a downwardly inclined plate 59 (Figs. 3 and 4) extending towards and spaced from the rear housing wall 2'I. Attached to the inner face of the door 29 and to the inner face of the end wall 24 are inclined

plates

52 and 53 which cooperate with the inclined plate 50 to receive and guide the articles I9 as they are removed from the advancing blanked material I4 in a manner to be presently described.

Upon each end of the frame 36 (Figs. 3 and 4) are secured vertical plates 54 and extending therebetween is a fixed shaft 55 which is arranged parallel to and adjacent an edge of the intermediate length 46 of blanked material I4. Independently rotatable upon the shaft 55 are a plurality of spaced paddle or beater supports 56. Rigidly secured to and extending from the inner end of each of the supports 56 is a rectangular shaped paddle or beater 6H of any suitable material. In the present instance, the paddles 69 are composed of hard phenol nbre board, the paddles extending laterially over the taut length 46 of the material I4. An individual coiled tension spring 9| (Fig. 4) is attached at one end to each of the paddle supports 56, the opposite ends of the springs being secured to a rod 62 carried on the frame 36.

The action of the springs I is to normally urge or snap the paddles 69 downwardly into engagement with the blanked material I4. In case no material is passing through the apparatus, the

rnot engage the pins 63.

bottom surfaces of the paddle supports 56 engage pins 63 carried by a rocker shaft 64 journaled in the plates 54, thus limiting the downward movement of the paddles. In the operation of the apparatus the paddle supports 56 do Also journaled in the plates 54 adjacent the outer ends of the paddle supports 56 and parallel to the fixed shaft 55 is a rotatable shaft 51 having fixed thereto a plurality of spaced cams 68, one for each paddle support. The cams 63 are spaced radially about the shaft 6'I at suitable points therearound with the result that cam lobes 69 on each of the cams engage the outer ends of the paddle supports 56 at different intervals during each rotation of the sam shaft. The cam shaft 61, during operation of the apparatus, is continuously rotated in a counter-clockwise direction, as viewed in Fig. 4, by means of a motor 'I0 and a speed reducer mechanism II mounted on a shelf 'I4 (Fig. 3) extending from the housing 23. A shaft I5 from the mechanism II drives the cam shaft 51 through pulleys I6 and 'I'I secured thereto, respectively, and a belt 'I8 interconnecting the pulleys.

In the operation of the article removing apparatus II the blanked strip material I4 is intermittently advanced therethrough in the direction of the arrows (Fig. l) and as the counterclockwise rotating cam lobes 69 are moved during each rotation of the shaft 61 and at different intervals into engagement with the outer ends of the independently rotatable paddle supports 56, the paddles or beaters 69 are consequently rocked upwardly against the tension of the associated springs I5 I. As each cam lobe 69 is disengaged from the end of its associated paddle support 55, the cone nected spring 6I acts thereon to draw the paddle 69 downwardly and it strikes or beats the upper face of the taut length 46 of the blanked material I4 and the articles I9 are projected therefrom. Thus, as the taut length 46 of the blanked material I4 passes below the paddles 69, it is repeatedly struck or vibrated by the paddles and the blanked articles I9 are knocked or removed therefrom.

The articles I9, projected from the blanked material I4 by the beating action of the paddles S9, fall onto the inclined plate 5l) and are thus prevented from dropping onto the bottom length of the material 4?. It will also be noted that any articles I9 which fall out of the blanked material during the latters advance over and under the

guide rolls

39 and 49 will fall onto the

inclined plates

52 and 53 carried on the inner face of the door 29 and the inner face of the end wall 24, respectively, and thus will be directed out of the path of the bottom length of the material 4l. The

inclined plates

53, 52 and 53, which receive the removed articles I9, direct them to a funnelshaped bottom portion B3 of the housing 29 and into a container 8I positioned thereunder.

In order to operate the rocker shaft 64 to cause the pins 63 carried thereby to swing the paddle supports 56 and the paddles 60 upwardly to facilitate the threading of the blanked material I4 through the apparatus, the following mechanism is provided: Attached to an end of the rocker shaft 64, which extends through the end wall 24 of the housing 2D, is alever 82 (Fig. 2) to which is connected the upper end of a link 83, which is connected at its lower end to a foot treadle B4 pivoted at 65. A coiled tension spring 89 connected to the foot treadle normally acts to hold the latter in an upper position in engagement with a stop surface B'I, in which position the rocker shaft pins 63 are maintained out of position to limit the downward movement of the paddles G, as shown in Fig. 4. By merely depressing and holding the foot treadle 84 down, the paddles E will be swung upwardly and held there while threading the blanked material M through the apparatus.

While the invention has been disclosed and described with reference to the removal of -lanked articles supported in blanked strip material advancing from a material working apparatus, such as a compound punch and die, it will be understood that it may be embodied in various forms and is capable of other applications limited only by the scope of the appended claims.

What is claimed is:

l. In an apparatus for removing blanked articles from sheet material, means for supporting the material, a plurality of blade-like paddles for engaging the material, and means for swinging said paddles in a to and fro movement into and out of engagement with the material to remove the blanked articles therefrom.

2. In an apparatus for removing blanked articles from strip material, means for supporting the material, a plurality of pivotally supported paddles for engaging the material, and means for alternately rocking said paddles away from the material and then snapping the same thereagainst to project the blanked articles therefrom.

3. In an apparatus for removing blanked articles from sheet material, means for supporting the material, and a plurality of individually pivotally supported beaters for engaging the material, and means for individually swinging said beaters into and out of engagement with the material for repeatedly beating the same to project the blanked articles therefrom.

4. In an apparatus for removing blanked articles from sheet material, spaced members for supporting a horizontal length of the material therebetween, a plurality of pivotally supported paddles extending across and arranged to engage said length of material, and means for raising said paddles away from the material and then snapping the same thereagainst to project the blanked articles therefrom.

5. In an apparatus for removing blanked articles from strip material, means for holding the material taut, a plurality of pivotally supported paddles for engaging the material, and means for rocking said paddles away from the material and then snapping the same thereagainst to project the blnnked articles therefrom.

6. In an apoaratus for removing blanked articles from blinked material, means for holding a length of the material taut, a plurality of pivotally supported paddles for engaging said length of material, and means for swinging said paddles into and out of engagement therewith for beating the same to project the blanked articles therefrom.

7. In an apparatus for removing blanked articles from blanked material, means for supporting the material, a plurality of pivotally supported spring pulled paddles extending across and engageable with the material, and rotating cams for periodically engaging said paddles for rocking the same away from the material and upon disengagement therefrom to permit the paddles to spring against the material to project the blanked articles therefrom.

8. In an apparatus for removing blanked articles from advancing blanked material, means for holding a length of the material taut, a plurality of pivotally supported paddles for engaging said length of material, and means for swinging said paddles into and out of engagement with the material for beating the same to project the blanked articles therefrom.

9. In an apparatus for removing blanked articles from advancing blanked material, spaced members for supporting a length of the material taut therebetween, a plurality of individually pivotally supported paddles for engaging said length of material, and means for individually swinging said paddles into and out of engagement therewith for repeatedly beating the material toV project the blanked articles therefrom.

lil. In an apparatus for removing blanked articles from advancing blanked material, a plurality of guide members for supporting and causing the material in its advance to travel alternately forward and backward to form spaced lengths of taut material, a plurality of paddles for engaging one of the lengths of material, and means for swinging said paddles into and out of engagement with said length of material for beating the same to project the blanked articles therefrom.

1l. In an apparatus for removing blanked articles from blanked material, means for supporting the material, and a plurality of individually pivotally supported paddles for engaging the material, stop means for normally limiting the .movement of the paddles past the material,

means for actuating said stop means to rock the paddles simultaneously away from the material, and means for individually swinging said paddles into and out of engagement with the material for repeatedly beating the same to project the blanked articles therefrom.

12. In an apparatus for removing blanked articles from advancing blanked material, means for holding a length of. the material taut, a plurality of individually pivotally supported paddles for engaging said length of material, a rock shaft supporting stop members for normally limiting the movement of the paddles past the material, means for rocking said shaft to cause said stop members to swing the paddles simultaneously away from the material, and a rotating shaft carrying radially disposed cams arranged at dierent points therearound for periodically engaging said paddles for swinging the same into and out of engagement with said length of material for repeatedly beating the same to project the blanked articles therefrom.

13. In an apparatus for removing blanked articles from material, means for supporting the material, rigid means for paddling the material, and means for swinging said paddling means in a to and fro movement into and out of engagement with the material to remove the articles therefrom.

14. In an apparatus for removing blanked articles from advancing blanked material, means for supporting and causing the material in its advance to travel alternately forward and backward to form spaced lengths of taut material, a plurality of paddles for engaging one of the lengths of material, means for swinging said paddles into and out of engagement with said length of material to remove the blanked articles therefrom, and inclined guide means arranged between said one length of material and an adjacent length of material and extending laterally thereof for directing the removed articles out of the path of said adjacent length of material.

CHARLES DORWEILER.