US1416984A

US1416984A - Coating machine

Info

Publication number: US1416984A
Application number: US308134A
Authority: US
Inventors: Reinhold D Schoenwetter
Original assignee: National Manufacturing Co
Current assignee: National Manufacturing Co
Priority date: 1917-05-17
Filing date: 1919-07-02
Publication date: 1922-05-23
Anticipated expiration: 1939-05-23
Also published as: US1416985A

Description

R. D. SCHOENWETTER.

COATING MACHINE.

APPLICATION FILED JULY 2. I919.

Patented May 23, 1922;

3 SHEETSSHEET D. SCHOENWETTER COATING MACHINE.

APPLICATION mp0 JULY2 ]Patented May 23, 1922.

3 SHEETSSHEET 2.

R. D. SCHOENWETTER.

comma MACHINE. APPLICATION FILED JULYZ, I919.

Patented May 23, 11922.

3 SHEETS-SHEET 3.

RETNHOLD D. SCHOENWET'IEJR, 01F BALTIMORE, 1*

rnanp, Assrornon, er ransnn 'ASSIGNMENT$, TO THE NATIONAL MANUFACTURING COMPANY, 015 BALTIMORE,

MARYLAND, A CORPORATION OF MARYLAND.

GUATING MACHINE.

ill 446,934..

Patented llllay 23, T322.

original application filed May 17, 1917, Serial No. 169,246. Divided and this application filed July 2, 1919. Serial No. 308,134.

To all whom it may cance /m Be it known that T, REINHOLD D. SoHonN- WETTER, a citizenof the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful llmprovements in Coating Machines; and I do hereby declare the followlng to be a full, clear, and exact description of the nvention, such as will enable others skilled 1n the art to which it appertains to make and use the same.

My invention-relates to coating machines.

This is a divisional application from m co-pending application Ser. #169248, filed May 17, 1917, for cigar band ng mach ne.

he object of my invent1on 1s to provide an improved wetting mechanlsm for cigar banding machines though it shouldbe understood that I do not limit my invention to this specific application, as the principles thereof may be applied to labeling and analogous machines generally.

More specifically considered, my present invention relates to improvements in band wetting mechanisms for use with those cigar banding machines in which a supply of cigar bands, each having a dry gummed end, is carried in a magazine stacked one upon the other and delivered one at a time to a wetting mechanism and then to the bandapplying mechanism proper. Tn such machines, it is of great importance that the guamed portion of the band be so moistened that it will not be too wet or too dry when it reaches the band applying mechanism and that the moisture applying means shall not remove the gum from the band.

In order to fully describe my said invention, reference will be had to the accompanying drawings, wherein Fig. 1 is a fragmentary top plan view of my improved mechanism with parts omitted for the sake of clearness.

Fig. 2 is a vertical section, partly in elevation, of my improved mechanism.

Fig. 3 is a fragmentary elevation, partly in section, of the wetting mechanism.

Fig. 4 is a detail sectional view of the wetting mechanism, shown longitudinally.

Fig. 5 is a detail vertical line 6-6 of Fig. 4.

Tu the machine, the cigar bands are carried stacked in any suitable magazine, not shown,

section on the andthe bands 11 are removed therefrom by suction, asuction head 35 being provided rigidly mounted upon one end of a crooked metal tube 36, rigidly secured to a supporting y forward end of one of the cylinders 44 of a double air pump 44 driven from a disk 45 having an eccentric groove 46, in which travels a roller 47 carried by a lever 48., connected through a link 49 to the piston cross head 50 of the air pump. The disk 45 is mounted upon a shaft 51 which receives its motion from power shaft 34 through a

sprocket gearing

34, 52 and 53.

The bands are removed from the magazine by the above described suction mechanism and are delivered to a conveyor which comprises a pair of metal belts 59 and 60, traveling respectively upon

flanged rollers

61, 62, 63 and 64. The rollers 62 and 64 are provided with equally spaced peripheral pins 65 and 66 which are adapted to extend through equally spaced

openings

67 and 68 in the respective belts and thereby impart travel thereto. The rollers 62 and 64 are fast on the shaft 69 and are connected through

gears

70 and 71 to a ratchet 72 mounted on a stud shaft 73.

This ratchet is adapted to receive motion from a pawl 74 carried by an arm 7 5 mounted for rocking motion on shaft 73, which motion is imparted to said arm through a lever 76 connected thereto through a link 77, the lever 76 being integral with the collar 26,

and the collar 26 in turn being fast with the rock shaft 27. Also fast on this shaft is an arm 28 and this arm receives rocking motion from the lever 30 which carries a roller 31 traveling in a cam slot 32 in one face of the disk 33 fast on the power shaft 34, hereinbefore described. Arm 28 is connected to the lever30 by means of the link 29.

Fast on the conveyor belts 59 and 60, respectively, are a series of

spring clips

78 and 79 spaced at regular intervals thereon in such arrangement as to form pairs in which the till too

clips of the respective pairs lie exactly opposite each other and are in a line at right angles to the lengthwise direction of the bands. The function of these clips is to remove the bands one at a time from the suction head and hold them in position on the conveyor belts until they are removed there from, as hereinafter described.

The wetting mechanism comprises, amongst other parts, a trough or tank 80 in which is carried a supply of water 81 and into which is adapted to extend a roller 82 fast on a shaft 83, connected through the gearing 84, 85 and 86 to the shaft 69 so as to impart to the roller 82 the same surface velocity as that to the conveyor belts 59 and60. A presser roller 87 ournaIed in bearings 88 and 89 (see Fig. 4), vertically movable in an overhanging bracket 90, is normally held in peripheral engagement with the roller 82 under the compression of

springs

91 and 92, the tension of which may be regulated by

screws

93 and 94.

Rollers

82 and 87 are located at one side of the conveyor belt 60 (at the right in Fig. 1) at such distance that the gummed end of each cigar band carried by the conveyor belts will pass between'said rollers.

The tank 80 is mounted for horizontal movement in two guide supports 95 and 96 and is adjustable horizontally by a screw 97.

This arrangement affords a means for adjusting the wetting rollers horizontally.

The mechanism for removing the bands from the conveyor belts comprises, amongst other parts, a hinged or pivotally mounted stripper 98 consisting of a yoke having arms 99 and 100 carrying on their

outer ends rollers

101 and, 102, respectively, which travel upon

plates

103 and 104, rigidly secured to the machine frame and having their forward ends bent downward to form

inclined planes

105 and 106 on which the

rollers

101 and 102 travel as hereinafter more particularly described. The

arms

99 and 101 carry

pins

107 and 108 which, when said arms travel forward, engage a band on the conveyor belt and carry it forward until its forward edge engages with two stop pins 109 and 110 fast on

plates

103 and 104, respectively. hen the bands are brought to this position, a suction head 111 rises into engagement therewith, draws the engaged band 17 downward and delivers it to the banding unit 112 indicated by dottedlines in Fig. 2. The banding unit per so, however,- does not constitute any part of the present invention and for that reason need not here be described in detail.

The stripper or yoke 98 is hinged to the upper end of a rocker arm 113 and the

rollers

101 and 102 are held in engagement with the

plates

103 and 104 under the tension of a spring 114.. The rocker arm 113 receives motion from a lever 115 connected to it through a link 116. the lever 115 receiving its motion from a disk 117 having an eccentric or cam groove 118 in which travels a roller 119 carried by the lever 115. The disk 11? is fast on a shaft 120 driven by the sprocket gearing 53-421.

The suction head 111 is fast upon the upper end of a metal tube 122 fast to a slide 123 mounted for vertical reci 'irocating motion in the guides 124 and connected through a link 125 to a lever 126 having a roller 127 which travels in an eccentric groove 128 in one face of the disk 117. The lower end of'the suction tube 122 connects through a flexible tube 129 to one end of the pump cylinder 44". The suction heads 35 and 111 are similar, except in that the head 111 has but one suction opening 130 through its top, whereas the head 35 has two such openings.

For the purpose of forming an upper stop or anvil for the hands when engaged by the suction head 111 in rising, there is provided a plate 131 rigidly secured to the machine frame and extending forwardly between the conveyor belts. The operation of my improved coating machine is as follows It will be assumed that the shaft 34 is in rotation and continues so throughout a complete cycle of the machine. By means of the movement imparting mechanism described, the continued rotation of the shaft 34 results in the step-by-step travel of the conveyor belts 59 and 60; an up and down motion of the suction heads 35 and 111; a forward and backward movement of the stripper device 98, and reciprocating motion of the pump pistons.

At the beginning of the cycle, the tube 36 rises, thereby causing the suction head 35 to travel upward and bringing the top surface of the suction head into engagement with the lowermost band of the stack of bands in the magazine, not shown. This movement completely seals the suction head and at this instant the pistons of the pumps 44 and .44 start on their outward strokes, thereby creating suction against the band in engagement with the suction head and holding it firmly thereon. After pausing with the suction head in the position described, tube 36 travels downward, causing the suction head 35 to descend and carry the band held thereon by suction with it. The suction head 35 continues its travel downward until it reaches the position indicated in Fig. 2 with the band held just above the conveyor belts. the said band being still held on the suction head by suction. The conveyor belts now advance one step under the action of the ratchet and pawl mechanism 7277 hereinbefore described, whereupon a, pair of the

clips

78 and 79 engagethe cigar hand held by the suction head 35, remove it from said suction head and carry it to the next stopping position (A). After the clips release engage the band, as described, the pump pistons reverse their stroke, thereby'releasing the suction applied to the head35.

On the next step of the conveyor belts, the band is brought to position B when it stops again, and on the next succeeding step, passes between the wetting rollers and on to the next stopping position C, and is carried along step by step, through the action of the pawl 74 on the ratchet 72 to the position D, then the arm 113 rocks forward, whereupon the pins107 and 108 engage the band, push it forward out of its retaining clips and position its forward edge against the pins 109 and 110, thus correcting any displacement which the band may have undergone in transit and insuring its correctpositioning on the suction head 111. When the arm 113 reaches the limit of its forward stroke, it pauses for an instant. At this time, the suction head 111 moves up and engages the band held between the pins 107-108 and 109110, and the instant this takes place the piston of the pump cylinder as starts on its suction stroke, thereby creating a suction on the band in engagement with the suction head 111. Suction head 111 then travels downward, carrying the band with it, and

after it has reached the limit of its downward travel, the piston of the pump cylinder 14 reverses its stroke and relieves the suction on the band, whereupon it becomes free.

The instant the suction head 111 starts down with a band,-the arm 113 rocks back to the position shown in Fig. 2 and the belt conveyor advances another step.

It will be noted that the wetting of the gummed end of the band takes place far in advance of its delivery to the band applying mechanism. This gives ample time for the proper softening ofthe gum. It has also been found that soapstone is the best material of which to make the roller 82, such material having relatively little friction. The best material for the roller 87 is rubber, as this will yield when the bands pass between the two rollers. When these rollers travel at the same surface velocity as the band passing between them, removal of the gum in the wetting process is practically eliminated.

It should be understood that, while the expression cigar bands is used in the accompanying claims, this is intended to include other strips or sheets of flexible material, the. said expression being used merely for convenience.

I claim 1. The combination with a tank, of a pair of rollers one of which is adapted to extend into liquid in said tank, and the other constructed of yieldable material and pressed upon said first-named roller, and a belt conveyor having band holding means adapted to pass a portion of said bands between said rollers.

. 2. The combination witha tank, of a pair ing band holding means adapted to cause said'bands to pass between said rollers, and

means to drive said roller in said tank and said conveyor at the same surface speed.

3. In a..coating machine the combination with a tank, of a wetting roller for coating bands, the peripheral surface of which is composed of material having relatively little friction with said bands, said roller being mounted with respect to said tank to extend thereinto, a vpresser roller pressing upon said wetting roller, and a conveyor having band holding means adapted to pass a portion of the bands thereon between said rollers.

4. In a coating machine the combination with a tank, of a wetting roller for coating bands, the peripheral surface of which is composed of material having relatively little friction with said bands, said roller being mounted with respect to said tank to extend thereinto, a 'presser roller pressing upon said wetting roller, and a belt conveyor having band holding means adapted to pass a portion of the bands thereon between said rollers.

5. The combination with a wetting roller, the peripheral surface of which is composed of material having relatively little friction, means to wet said roller, a presser roller pressing upon said wetting roller, and a conveyor having band holding means and adapted to pass a portion of said bands held thereon between said rollers.

6. The combination with a wetting roller,

means to wet said roller, a presser roller, constructed of yieldable material, pressing upon said wetting roller, and a conveyor having band holding means and adapted to pass a portion of said bands held thereon between said rollers.

7. The combination with a wetting roller, means to wet said roller, a presser roller constructed of yieldable material pressing upon said wetting roller, and a belt conveyor having band holding means and adapted to pass a portion of said bands held thereon between said rollers.

8. The combination with a tank, of a wetting roller, the'peripheral surface of which is composed of soapstone, said roller being mounted with respect to said tank to extend thcreinto, a presser roller co-acting with said wetting roller, and a conveyor having band holding means adapted to cause the bands thereon to pass between said rollers.

9. The combination with a wetting roller,

the peripheral surface of which is composed bands held thereon to pass between said rollers.

10. The combination with a wetting roller, of means to wet said roller, i roller pressing against said wetting roller, a belt conveyor having band holding means for passing a portion of a hand held thereb between said rollers, and means to drive sai conveyor and wetting roller at substantially the same surface s eed.

11. he combination with a wetting roller, of means to wet said roller, a presser roller adapted to .co-act with said wetting roller, a belt conveyor having hand holding means, and means positively acting step by step to drive said conveyor and wetting roller at substantially the same surface speed.

12. In a coating machine the combination with a roller for coating bands, the peripheral surface of which is of material having a low coefiicient of friction with said bands, of means to wet said roller, a presser roller adapted to co-act with said Wetting roller and having a peripheral surface of material having a different coefiicient of friction with t said bands from the first mentioned roller,

and band conveying mechanism adapted to cause a gummed portion of the bands to pass between said rollers.

13. In a coating machine the combination with a roller for coating bands, the periph eral surface of which is of material having a low coefiicient of friction with said bands, of means to wet said roller, a presser roller adapted to co-act with said wetting roller and having a peripheral surface of material having a relatively high coefiicient of friction with said bands, and band conveying mechanism adapted to cause a gummed rtion of the bands to pass between said rollia rs.

14. The combination with a roller, the peripheral surface of which is composed of soapstone, of means to wet said roller, a presser roller adapted to co-act with said wetting roller and having a peripheral surface composed of soft rubber, and band conveying mechanism adapted to cause a gummed portion of the bands to pass between said rollers. I

In testimony whereof, I aflix my signaare.

REINHOLD D. SCHOENWETTER.