US2091494A

US2091494A - Glass working machine

Info

Publication number: US2091494A
Application number: US81488A
Authority: US
Inventors: Harold H Snyder
Original assignee: Corning Glass Works
Current assignee: Corning Glass Works
Priority date: 1936-05-23
Filing date: 1936-05-23
Publication date: 1937-08-31
Anticipated expiration: 1954-08-31

Description

2 Sheets-Sheet l INVENTOR.

TORNEYS.

Ang 31, 1937. H. H. sNYDER GLASS WORKING MACH-INE Filed May 25, 1936 Aug. 31, 1937. H. H. sNYDERv GLASS WORKING MACHINE Filed May 23, 1936 2 Sheets-Sheet 2 nnn A TTORNE YS.

INVENTOR.

/ 5N YDER Patented Aug. 31, 1937 GLASS WOR@ MA. tl"

Harold H. Snyer C mi N. Y., assigner to Coming Glass Works, Cog, N. Y., a. corporation oi New York Application May`23, i936, Serial No. 31,488

Mi Claims.

This invention relates to glass working machines and more particularly to the improvement of machines of the type wherein the separation of nished articles from a travelling ribbon of glass is eiected by an ejector mechanism which strikes the articles as they reach a predetermined point in their travel.

In the instant disclosure the invention ernbodies the provision of an improved type of ejector mechanism as well as its application to a glass blowing machine ofthe general tym disclosed in Woods et al. Patent No. 1,790,397, granted January 27, 1931, although not necessarily limited to such a machine.

An object of the invention is to provide a striking mechanism which performs the article severing operation in a. more positive and effective manner than heretofore possible.

Another object of the invention is to provide a striking mechanism which is continuously driven in the same direction and strikes the articles to be severed a glancing blow which gives the articles a combination horizontal and downward movement.

A still further object of the invention is to provide a machine which has facilities for making precision adjustment of the timing oi the striking action with respect to the glass ribbon and the articles to be severed from it, as well as facilities for the adjustment oi the vertical and horizontal positions of the striking mechanism with respect to the ribbon.

Other objects and features have to do with. the provision of a mechanical arrangement wherein the striking action is uniform and positive at all speeds of operation of the machine, and is substantially free from vibration irrespective of its speed of operation. y

in the drawings:

Fig. 1 is a plan view of a portion oi a bulb blowing machine provided with a striking mechanism constructed in accordance with this invention, and its relation to an article receiving conveyor;

Fig. 2 is a rear elevation of Fig. l;

Fig. 3 is a side elevation of `Fig. l, partly in section, and also showing a sectional view of part of the article carrier of the machine, not illustrated in Fig. 1;

Figs. 4 and 5 are enlarged sections of certain of the parts not clearly illustrated in the other views;

Fig. 6 is an enlarged sectional view of part of the striker mechanism taken on the line 6-6 of Fig. 3;

Fig. 7 is an enlarged sectional elevational View gf the striker drive shaft and coupling assem- Fig. 8 is a view similar to Fig. 7, but shows an alternative position of the coupling with respect to the drive'shaft of thestriker assembly;

Fig. 9 is an enlarged sectional elevation of the transmission unit of the striker assembly, taken `on the line i--t of Fig. 3; and

Fig. i0 is a plan view of certain of the parts within the transmission casing.

Referring to the drawings in detail, the bulb blowing machine includes a, bed ii (Fig. 3) to which standards such as i2 are secured; These standards support, at their upper ends, rails i5 and il on which a. plate it is carried. The usual travelling article carrier lil is suspended from brackets i3. A main drive shaft it extends longitudinally of the machine near the lower ends oi the standards i2 and serves to transmit power -to the article carrier and. other moving parts of the machine, only those driving connections having to do with the present invention being shown.

A receiving conveyor, designated it, of any `well known form is so positioned with respect to the article carrier i i as to receive the formed articles 2i es they are severed from the ribbon oi glass 22 supported on the carrier it.

A casing 2li depends through a hole 2S in the previously mentioned plate it and has extension members 2li and 2i which slide in channels iorrned jointly by parts of plate it at points opposite hole 2e therein and members 2t, as best illustrated in Figs. 1 and 2. An adiusting screw 29 is threaded into a bracket Si@ secured to rail il and has a flanged end fixed to, but rotatable in, the sidewall of extension 2l of the casing 2d. ii'ithiri4 the casing 2li there is a worm wheel si having its bore threaded to receive the threaded end of a. vertically disposed shaft 33, having its unthreaded portion extending through the bottom of the casing for a purpose which will hereinaiter be made clear. A worm 32 within casing 2Q (see Fig. 5) and in mesh with Worm wheel ai is secured on an adjusting shaft 3d appropriately journalled in the sides of casing 2li. By examination of Figs. 1, 2, and 3, it will therefore become apparent that by turning adjusting screw 29 the casing 2t and shaft 33 may be moved toward or away from the article carrier it; and that, similarly, by rotation of worm 32 by means of its associated shaft 3d, the Worm wheel 3i may be rotated to raise or lower the shaft 33 with respect to the article carrier it. The purpose of providing the vertical and horizontal adjustment of the position of shaft 33 with respect to the article carrier will be explained subsequently.

. The lower end of shaft 33 is introduced into a bore 36 of a bifurcated bracket 35 and is held in place by suitable set screws. The bifurcated parts. of bracket 35 partially. surround a striker assembly casing 31 and are pierced to receive studs 38 threaded into the walls of this casing and on which the casing may rotate a limited extent. The bracket 35 is also provided with bores 39 for receiving guide rods 40 (Fig. 4) which are secured in appropriate sockets 4I (Fig. 5) depending from the lower portion of casing 24. These rods serve to prevent rotary movement of bracket 35 and its supporting shaft 33.

The casing 31 (Fig. 3), which supports the striker mechanism proper, is provided with a horizontally disposed striker shaft 42 journalled in suitable bearings in the -walls of casing 31. One end of this shaft extends outside the casing and has fixed thereto a` striker arm 43 carrying a roller 44 for severing the articles 2| from their supporting ribbon 22 as such articles are successively presented at a predetermined point in their travel. In the present instance, the severing operation is arranged to occur as the articles 2| are successively positioned over the moving conveyor 28. It will therefo-re be appreciated that the purposeof providing for vertical and horizontal adjustment of shaft 33 is toenable the proper positioning of the striker mechanism with respect to the articles carried by ribbon 22. Within the casing 31 a gear 45 is fixed to striker shaft 42 and meshes with a similar gear 46 carried by a shaft 41 also journalled in suitable bearings in the casing walls and having its lower end extending downward through the casing. Motion is transmitted to the shaft 41 by the main drive shaft I8 of the machine through the medium of a transmission within a casing 48 (Figs. 3 and 9) and a suitable striker drive shaft assembly which will be described later.

vThe transmission assembly includes a gear 49 (Fig. 3) within the transmission casing 48 secured for rotation with main shaft I8. The gear 49 meshes with a similar gear 5I) mounted for free rotation on a drive shaft 5| extending upwardly in axial alignment with shaft 41 also journalled in suitable bearings in the casing 48 (Fig. 9). The gear 50 is in turn connected to a bevel gear 52 and through the medium of a set of bevel gears 53 and a cooperating bevel gear 54 transmits motion to the shaft 5| to which the latter gear is fixed. The bevel gears 53, it will'be observed (Fig. 10) are arranged to rotate in bearings carried by a spider 56 and which also has fixed thereto a worm wheel 51 which, as illustrated in Fig. 9,*meshes with a worm 58 secured to a shaft 59 mounted in suitable bearings in the casing 48. The worm 58 and its cooperating worm wheel 51 are provided to enable the rotary position of shaft 5| to be varied with respect to that of shaft I8 for a reason which will be subsequently made clear.

It will be appreciated that the vertical as Well 4as the horizontal adjustment of the striker arm 43 will result in a variation in the distance between casing 31 and the transmission casing 48 and that, therefore, the driving connection between these casings must be arranged to take care of these variations. It is also desirable that the driving connection be relatively easily removed from the shaft 5I so as to enable easy removal of the unit canled by casing 31. These features as incorporated in the instant structure are best illustrated in Figs. 7 and 8 and include a tubular shaft 66, the top end of which slips over and is bolted to shaft 41 and the lower end of which slips over the shaft 5I. Surrounding and fixed to the lower end of shaft 68 is a bushing 6I a short distance above which are balls 62 introduced intoI holes in the tubular shaft 60. A cylindrical casing 63 is slid over the shaft 68 and, when in the position shown in Figs. 3 and 7, forces the balls 62 into channels 64 in shaft 5I. These channels run lengthwise along the shaft 5|, and while the balls and channels prevent rotary movement of the shaft 68 with respect to shaft 5| they permit the necessary endwise movement which occurs during adjustment of the position of casing 31 with respect to articles such as 2|. A bushing 65 closes the space between the bottom of casing 63 and shaft 68. I

When occasion requires, the removal of the casing 31 and the associated striker mechanism may bereadily accomplished by moving the casing 63 upward on tubular shaft 60 to the position in which it is illustrated in Fig. 8, thereby permitting the balls 62 to' move clear of the channels 64 so that by removing the studs 38 the casing 31 and that part of the assembly also including shaft 68 may be withdrawn from association with shaft 5I. As a convenience in holding the casing 63 in the position just described, the lower portion of the bushing 6I and the upper portion of bushing 65 are provided with

cooperative bayonet members

66 and 61 which when rotated slightly with respect to each other hold the casing 63 locked in the position with respect to the shaft 60 in which they are shown in Fig. 8.

In preparing for the operation of the glass working machine, adjusting screw 29 and adjust- 'ing shaft 34 are rotated as required to bring the striker mechanism proper, carried by casing 31, in the appropriate vertical and horizontal position with respect to ribbon 22 which is determined as the best position for eecting the article severing operation. As these adjustments are being made, a" slight necessary rotation of casing 31 occurs on the studs 38, while the transmission casing 48 is similarly slightly rotated about main shaft I8.

After the necessary adjustments in theposition of striker mechanism proper with respect to the articles 2| have been made, due to the slight rotation of the casing 31 thereof, the position of striker arm 43 in the arc traversed by it may not be that best suited to the effectivev severing of the articles. The proper positioning of this arm may however be readily obtained by its rotation with respect to main shaft I8 simply same time the roller. 44, carried by arm 43 and also rotated by power transmitted to it through the medium of the shaft I8, strikes the articlev a sharp glancing blow, thus separating it from the ribbon 22 by imparting a downward and r0- tating or horizontal motion to the article. The

motion transmitted to the article is such that it accurately directs the severed articles onto the conveyor 22.

While in the foregoing there has been shown and described the preferred embodiment of my invention, it is to be understood that minor l changes in the details of construction, combination and arrangement of parts may be made Without departing from the spirit and scope of cles from the ribbon and discharge them trans-y versely of the direction of travel of the carrier. 3. The combination with a travelling carrier supporting a glass ribbon from which articles are suspended, of a continuously rotating element arranged to strike and sever the articles from the ribbon, and means to regulate the movements of the element relative to the ribbon.

4. The combination with an article receiving conveyor and a travelling carrier supporting a glass ribbon from Which articles are suspended,

said carrier successively presenting the articles to said conveyor, of continuously rotating means for severing the articles from the ribbon, ejecting the articles as they are presented to the conveyor, and simultaneously transmitting a turning motion to them.

5. The combination with an article receiving conveyor and a travelling carrier supporting a glass ribbon from which articles are suspended, said carrier successively presenting the articles to said conveyor, of rotating means for severing the articles from the ribbon as they are presented to the conveyor, and means to adjust the position of said rotating means vertically and horizontally.

6. The combination with an article receiving conveyor and a travelling carrier supporting a glass ribbon from which articles are suspended, said carrier successively presenting the articles to said conveyor, of rotating means for severing the articles from the ribbon as they are presented to the conveyor, means to adjust the position of said rotating means vertically and horizontally and means for adjusting the timing of the severing operation with respect to the instant position of the articles. 4

7. The combination with an article receiving conveyor and a travelling carrier supporting a glass ribbon from which articles are suspended,

said carrier successively presenting the articles to the conveyor; of rotating means for severing the articles from the ribbon and ejecting them transversely of the direction of movement of the article carrier as they are presented by it to the receiving conveyor, and means to regulate the movements of the rotating means with respect to the articles.

8. The combination with an article receiving conveyor, and a travelling carrier supporting a glass ribbon from Which articles are suspended and successively presented to the conveyor, of a rotating striker for. severing the articles from the ribbon and ejecting them as they are presented to the conveyor.

9. The combination with an article receiving conveyor, a travelling carrier supporting a glass ribbon from which articles are suspended and successively presented to the conveyor, and of driving means for the carrier, a rotary striker for severing the articles from the ribbon and ejecting them as they are presented to the conveyor, and means associated With the carrier driving means for rotating the striker.

10. 'I'he combination with an article receiving conveyor, a travelling carrier supporting a glass ribbon from which articles are suspended and successively presented to the conveyor, and of driving means for the carrier, a rotating striker for severing the articles from the ribbon, means associated with the carrier driving means for continuously rotating the striker, and means for synchronizing the operation of the striker with the presentation of the articles to the 'conveyor by the carrier.

l-l. In a glass Working apparatus having a travelling carrier supporting a glass ribbon from which articles are suspended, a rotating striker arranged to pass through an arc intersected by the articles to sever them from the ribbon as they are presented at a given point, means for adjusting the position of the striker with respect to the article, and means -for timing the movement'o-f the striker.

12. The combination with a travelling carrier supporting a glass ribbon from which articles are suspended, of an ejector mechanism arranged to sever the articles from the ribbon, a drive shaft for transmitting operating power to said ejector mechanism, and means providing a telescopic action of said drive shaft so as to enable the position of said ejector mechanism to be varied with respect to the ribbon.

13. The combination with a travelling carrier supporting a glass ribbon from which articles are suspended, of an ejector mechanism arranged to sever the articles from the ribbon, and means providing a telescopic action of said drive shaft so as to enable the height and horizontal position of said ejector mechanism to be varied with respect to the ribbon.

14. The combination with a travelling carrier supporting a glass ribbon from which articles are suspended and successively presented to an ejector, of means for transmitting a continuous rotary motion to such ejector to successively sever the articles from the ribbon.

HAROLD' H. SNYDER.