US1982004A - Gluing machine - Google Patents

Description

Nov. 27, 1934. c, l.. HUMPHREY Er AL GLUING MACHINE Filed Feb. 17, 1930 5 Sheets-Sheet l Nov. 27, 1 934. c. L.. HUMPHREY ET AL GLUING MACHINE Filed Feb. 1 7, 19H30 A INVENTORS Roem K. LEE AND BY CARROLL L. HUMPHREX Z 7 A TT ORNE Y Nov. 27, 1934. c, 1 HUMPHREY ET AL 1,982,004

GLUING MACHINE Filed Feb. 17, 1930 5 Sheets-Sheet 3 INVENTORS ROG-ER hi LEE.' AND BY CARROLL L. HUMPHRE'X A TT ORNE Y Nov. 27, 1934. c. 1 HUMPHREY Er AL GLUING MACHIN 5 sheets-smet 4 Filed Feb. 17, 1930 EE.' AND L.

I ORS ROGER lf. L VENT CARROLL. BY

HUMPHREY ATTORNEY c. L. HUMPHREY ET AL 1,982,004

GLUING MACHINE Filed Feb. 17, 1950 5 Sheets-Sheet 5 INVENTORS HGER K. LEE. AND

CARROLL L.. HUMPHREY. BY

ATTORNEY Nov. 27, 1934.

.2 h2 m\ QQ Q2 m2 WS m3 mw E m" m5 Nnl miv mi IL WQ?! Patented Nov. 27, 1934 UNITED STATES PATENT OFFICE GLUING MACHINE Delaware Application February 17, 1930, Serial No. 429,008

Claims.

This invention relates to a machine for spreading glue or other liquid on the surface of articles passed through the machine.

The main objects of this invention are to pro- 5 vide an' improved machine adapted for continuous operation, which will apply glue or other liquid to the surface of articles passed through and then partially dry the treated article in an oven; to provide a combined gluer and dryer, each having continuously moving conveyors for handling the work in timed relationship so that work passed through the gluer will be received and handled properly by the dryer; to provide a machine of this character particularly suitable for applying glue to running boards used in the construction of motor vehicles; to provide a device of 'this kind which will apply glue to running boards and subject the same and previously glue coated running board mats, to drying treatments of related duration; and to provide a device of this kind for conveying glue coated running board mats and glue coated running boards through respective drying chambers and delivering the same within close proximity of each other so as to facilitate convenient assembly of the mats and running boards by a single attendant.

An illustrative embodiment of this invention is shown in the accompanying drawings, in which:

- Fig. l is a view partly in elevation and partly in vertical longitudinal section of our improved apparatus.

Fig. 2 is a top plan view of the same, with the oven shown in section, taken on the line 2-2 of Fig. 1.

Fig. 3 is an enlarged sectional view taken on the line 3-3 of Fig. 2.

Fig. 4 is an enlarged fragmentary detail View taken on line 4-4 of Fig. 2.

Fig. 5 is an enlarged fragmentary view taken on line 5-5 of Fig. 2 showing adjusting means for regulating the scraper blade which removes excess liquid from the work.

Fig. 6 is an elevation of the side of our improved apparatus which is illustrated at the top of Fig. 2.

Fig. '7 is an elevation of the side of the device which is illustrated at the bottom of Fig. 2.

Fig. 8 is a fragmentary' elevation of parts shown in Fig. 1.

In the construction Shown in the drawings, the apparatus comprises a frame work 6 which supports a trough 7 adapted to contain a quantity of glue or other liquid. An elongated, rectangular, longitudinally disposed table 8 is mounted on the frame 6 and trough 7, with one end thereof 9 projecting over one side of thetrough and terminating closely adjacent to a liquid conveying and applying roller 10. The roller 10 is mounted on the rim of the trough 7 at the opposite ends thereof. The outer peripheral surface of the roller 10 60 is provided with a plurality of longitudinally extending, radially projecting ns 14, preferably formed of rubber or the like and which are adapted to convey liquid, such as glue, from the trough when the roller is rotated. The roller 10 is posi- 65 tioned so that its top side is substantially in the same horizontal plane as the plane of the top of the table 8.

Means yare provided for rotating the roller l0 and comprise an electric motor 15, the pulley wheel of which drives the belt 16, which passes around and rotates a pulley wheel 1'7. The pulley Wheel 17 is fast on a stub shaft 18, which carries a spur gear 19 keyed thereto and which meshes with and drives a gear wheel 20 keyed to one end 75 of the roller shaft 11. The opposite end of the roller shaft 11 is provided with a sprocket gear 21 which carries and drives an endless sprocket chain 22. The chain 22 passes around and drives a sprocket gear 23 keyed on one end of a shaft 24, 30 which is journaled on a frame work 25 which is bolted or otherwisesuitably secured to the trough 7 and supporting structure 6.

The shaft 24 extends transversely of the frame 25 and near its medial part carries a sprocket g5 gear 26 which supports one end of and drives a Work conveyor chain 27. The conveyor chain 27 extends longitudinally of the work table 8 in spaced parallel relation thereabove and the opposite end of the loop of said conveyor chain is engaged 'and supported by a sprocket wheel 28 fast on the shaft 29, the ends of which are journaled in bearings 30 and 31 secured to the table 8 at opposite sides thereof closely adjacent the end of said table which is opposite to the roller 10. The conveyor chain is provided with a series of spaced lugs 32 on the outer surface thereof, which are adapted to engage pieces of work 33 and move such work longitudinally of the table 8 and over and in contact with the 100 liquid conveying roller 10.

The table 8 near its medial part is provided with a transversely disposed shaft 34 journaled at its ends on the upper ends of arms 35 and 36, which are pivoted at 37 and 38, respectively, 105 so as to permit the shaft 34 to swing toward and away from the top surface of the table 8. The shaft 34 carries a Weighted roller 39, which is adapted to hold down on articles of work being passed through the machine. 'Ihe shaft 34 110 also carries a roller` 40 in position to contact with the lower portion of the conveyor chain 27 and aid in holding said conveyor chain in denite spaced relationship with respect to the table top so that the lugs 32 will not become disengaged from the work when moving the work along said table. A guiding arm 41 is pivotally mounted on the top .surface of the table 8 adjacent one side thereof and medially of its ends for guiding articles of work along the table. A tension spring 42 is provided for one end of the arm 41 so as to cause the arm to yieldingly engage the articles of work and shift them to one side of the work table 8.

The table 8 adjacent its discharge end is provided with a pivoted lever 43, one end of which is provided with a rubber brush or wiper 44, which is adapted to scrape out excess glue when urged into contact with the side marginal edge of the article or work being passed through 'the machine. Yielding contact with the brush 44 against the work is secured by means of a tension spring 45, one end of which is secured to the lever 43 at the end opposite vto the brush 44 and the other end of which is secured to the frame work 25.

At a point in the same horizontal plane and directly opposite to the brush 44 is a similar Abrush or scraper 46, which is stationarily mounted on the frame work in position to engage the edge of the piece of work opposite to the edge engaged by the brush 44 for performing the same func-,- tion.

Means are provided for scraping or wiping off excess glue from the under surface of the piece of -work passed through this machine and comprises a transversely disposed bar 47 journaled at its ends on the frame 25 and which carries a piece of angle rubber 48, one vflange of which is clamped to a laterally extending web 49 on the bar 47 and the other flange of which extends upwardly and is tapered, as shown at 50 in Fig. 5. One end of the bar 47 extends through the side frame 25 and is provided with an arm 51 secured thereto by a pin 52. The outer or free end of the arm 51 is embraced at diametrically opposite sides by set screws 53 and 54, which are threaded through outstanding lugs 55 and 56, respectively. Lock nuts. 57 and 58 are provided fo'r the set screws 53 and 54, respectively, for securing the screws rigidly in an adjusted position.

When pieces of work have been passed along the table 8 and over the gluing roller 10 they are supported on a pair of sharp edged disk shaped rollers 59 and 60 carried in spaced coaxial relation on a shaft 61, which is journaled at its opposite ends in inwardly facing bearings 62 and 63 mounted on the inner faces of the side frame 25. From there the work .passes to a similar set of sharp edged rollers 64 and 65 carried in spaced coaxial relation on a shaft 66, one end of which is journaled on an inwardly facing bearing 67 secured to the inner face of the side frame 25 and the other end of which passes through the side frame 25 and is journaled in a bearing 68 secured on the inner. side of said side frame. The end of the shaft 66 which extends through the side frame 25 protrudes therebeyond andlis provided with a sprocket wheel 69, keyed thereto, around which passes an endless sprocket chain 70, the outer periphery of which meshes .with av sprocket gear 71 keyed on the shaft 24.

Approximately midway between the shafts 61 posed shafts 78 and 79 disposed in spaced parallel relation, one above the other. The shafts 78 and 79 carry axially spaced sprocket gears 80 and 81, respectively, which support an endless chain conveyor formed of a plurality of links 82 pivotally connected together at their ends. The pivot pins 83 for the links 82 are in the form of slender rods which extend from one of the chain belts to the other and the ends of which protrude said links and have rollers 84 journaled thereon. The rollers 84 are adapted to travel in `an inwardly facing track of U shaped cross section so that the links 82 are rigidly held in vertical position except when passing around the 1 sprocket wheels upon which they are carried, at which time said links are substantially perpenl dicular to the radius of the sprocket wheels.

Each of the'links 82- midway of their ends is provided with a rigid arm 85, which extends out- 1 wardly perpendicularly to the link and which is adapted to receive and convey the articles of work passed into the drying oven 77.

Closely adjacent the entrance thereof the oven 77 is provided with a shaft 86 and carries a pair 1 of spaced sharp edged disk rollers 87 and 88 for receiving the work when passed into the oven. The shaft 86 is journaled on suitable bearings 89 and 90. One end thereof protrudes through the wall of the oven and is provided with a 1 sprocket gear 91 and 92. The sprocket chain 70 passes around the sprocket 91, providing adriving connection between the shafts 24 and 86. The oven 77 is also provided with another shaft 93 which carries a pair of axially spaced sharp 1 edged disk rollers 94 and 95 for supporting the work when passed completely into the oven and prior to its being picked up by the oven conveyor. The shaft 93' is journaled in suitable bearings 96 and 97 and one end thereof projects 1 through the lside of the oven andv is provided with a sprocket gear 98, which receives a sprocket drive chain 99, the other end of the loop of which passes around a sprocket gear 92 keyed on the outer end of the shaft 86. A 1

'I'he oven 77 may also be provided with additional shafts and 1supporting rollers for holding the work, if desired, such as the shaft 101 whichy is driven by a sprocket chain 102.

Means are provided for driving the oven con- 1 veyor and comprise a worm gear 103 keyed on one end of the shaft 79. The gear 103 is driven by a worm 104 keyed on shaft 24 and the ratio is such that standard sized articles of work, such as steel running boards, will pass into the 1 oven in timed relationship so that the arms of the oven conveyor will pick up the running boards at the present time so as to lift them out of the way of succeeding pieces of work.

-A suitable heater 105 is provided at the lower 1 part of the oven 77 so that the heat therefrom passes up from the oven and partially dries the glue which has been applied to the pieces of work.

In the operation of this machine pieces of work, such as steel running boards, are placed 1 on the work table 8 with their upper sides turned face down; glue is placed in the trough 7, steam turned into the heater and the electric motor 15 yis started. The motor 15 through the belt 16, pulley wheel 17 and gears 19 and 20, rotates the roller' 10, the lower portion of which dips into the glue in the trough 7 and carries some of the glue up to the side thereof. Rotation of the roller 10 and shaft 11 cause the sprocket wheel 21 to drive sprocket chain 22, which in turn drives sprocket wheel 23 keyed on shaft 24. Rotation of the shaft 24 drives the table work conveyor belt 27 through the mediumof sprocket gear 26 keyed thereon. Movement of the conveyor chain 27 causes one of the lugs 32 thereon to engage the running board and either push or pull the same along the table 8. When the running board 33 contacts with the spring actuated arm 41 it is pushed to one side of the table and aligned therewith.

As the piece of work passes over the roller 10, the fins 14 thereon apply a coating of glue to the under side thereof and as the piece of work passes over the rubber scraper 48 the upstanding flange 50 thereof removes excess glue, which drains and drips back into the trough 7. The piece of work then passes on to the rollers 59 and 60 and thence to the rollers 64 and 65.

In proper timed relationship the piece of work is then passed into the drying oven on the rollers 87, 88, 94 and 95 and any additional ones which may be provided. Rotation of the shaft 24 causes the worm 104 to drive the worm gear 103, thereby rotating shaft 79 and thus moving the oven conveyor in proper timed relationship. As the arms 85 move up into longitudinal position from a downward hanging position they pick up the piece of work which has been discharged into the oven and carry the same slowly upwardly into the oven, thus allowing the glue to partially dry. As the arms 85 pass over the upper conveyor supporting sprocket 80 the pieces of Awork supported thereon drop over to the preceding arm, as shown in Fig. 3 of the drawings, and are thus lowered into the oven right side up.

The weighted rollers 36 and 79 hold the pieces of work firmly down onto the table and supporting rollers, respectively, and the rollers 40 and 75 engage the inner side of the lower strand of the table conveyor chain so as to insure the lugs 32 remaining in engagement with the pieces of work.

At the same time the pieces of work have the excess glue scraped from the under side` thereof by the rubber scraper 48, the side scrapers 44 and 46 remove the glue from the lateral edges of the running board and cause it todrain back into the trough 7.

Apparatus for conveying glue coated running board mats 107 through a drying chamber 108 and delivering themwithin close proximity of the outlet of the oven 77 is provided on the front side of the machine as illustrated at the lower portion of Fig. 2. This apparatus comprises a supporting structure 109 having upright legs 109. Mounted on one end of the supporting structure is a table 110 and on the other end is the drying chamber 108 which is supplied with heated air from the oven 77 through a conduit 111. An endless belt conveyor 112 extends through the drying chamber 108 and is disposed around spaced pulleys 113, 114, 115 and 116 and over an adjustable pulley 117.

" The belt 112 extends between an idler pulley 1&8, and a driving pulley 119 which is mounted 'vertical conveyor.

on an extension of the driving shaft 11. The belt passes over the driving pulley 119 and extends between the latter and an adjacent idler pulley 121. The pulleys 118, 119 and 121 are mounted on shafts 122, 120 and 123 respectively, which are journaled on the supporting structure 109 and the shaft 120 is secured to the shaft 11 by a flexible connection 124.

Mounted on the table 110, is a switch having an actuating member 126 located in the path of the running boards 33 at the outlet of the oven 77. When the running boards 33 approach the outlet of the oven 77 they are urged outwardly by inclined bars 127 which are located within the oven 77 on the opposite sides of the As the running boards approach the table 110 they engage the member 126 of the switch 125 and urge it downwardly so as to open the circuit of the electric motor 15. This stops the operation of the horizontal conveyor27, the vertical conveyor and the endless belt 112. When the lowermost running board 33 is removed from the arms 85 and from engagement with the switch actuating member 126, the circuit of the motor 15 is closed and the conveyors operate until the next successive running board reaches the member 126.

A partition 128 having an opening 129 ,is mounted between the upper and lower portions of the drying chamber 108 for providing upper 105 and lower compartments. The conduit 111 communicates with the lower compartment into which heated air from the oven 77 is drawn by a fan 130. The fan 130 drives the heated air through the opening 129 in the partition 128 and 110 into the upper compartment of the chamber through which the mats 107 travel.

Pivotally mounted on the front wall 131 of the machine is a metal slab 132 which has pins 133 on its opposite sides that coact with catches 115 l34vfor retaining the slab in a vertical position.

A substantially air tight bag 135 is located between the slab 132 and the front wall 131 and is provided with an air inlet 136.

In operation, one attendant places running 120 boards on. the conveyor chain 27 and glue coated running board mats on the endless belt 112. The chain l27 and arms 85 carry the running boards over the gluing roller and through the drying oven 77 as described above and deliver the running 125 boards to the outlet of the oven. 'Ihe endless belt 112 carries the glue coated running board 'mats through the drying chamber 108 to a position which is in close proximity to the outlet of the oven. A second attendant standing in front 130 of the table 110, removes one running board mat from the conveyor 112 at a time and places it on the table with its glued side'up adjacent the sides of the form 137. He then removes a running board from the vertical conveyor and places it 135 in inverted position upon the running board mat. The partially dried coatings of glueon the running board and mat cause the mat to adhere to the board. i

The mat and board are lifted from the table 110 and mounted on the support 138 of the slab 132 while the latter is in an open position. The slab is then rotated to a closed position and air or other fluid under pressure is admitted into the bag 135 through the outlet 136 by suitable valve mechanism, not shown in the drawing. Ination of the bag 135 causes the running board and mat to be subjected to a tremendous pressure which firmly secures the two together.

As each running board-.is removed from the 150 vertical conveyor the switch 125 closes the circuit of the motor 15, thereby driving the conveyors until .the next successive running board is in position .to be removed from the arms 85 by the second mentioned attendant.

Although but one specific embodiment of this invention has been herein shown and described, it will be understood that numerous detailsv of construction shown may be altered or omitted without departing from the spirit of our inven-4 tion as defined by the following claims.

What we claim is:

1. In apparatus for moving glue coated running boards and mats through respective chambers of an oven to adjacent outlets thereof; a conveyor in one chamber for carrying glue coated running boards from the inlet to the outlet thereof, means in the other chamber of said oven-for feeding glue coated running board mats from the inlet to the outlet of the latter chamber, mechanism for driving said conveyor and mat feeding means in timed relation so as to substantially simultaneously supply an attendant with a running board and mat, each having a partially dry glue coating thereon, and means operable by engagement with said running boards for stopping the movements of said conveyor and mat carrying means simultaneously when a running board is in registration with an outlet of said oven.

2. In apparatus for moving glue coated articles through respective drying chambers of an oven to adjacent outlets thereof; a conveyor in one drying chamber for transferring a glue coated article therethrough from its inlet to its outlet', means in the other chamber for feeding glue coated articles therethroughfrom its inletto its outlet, driving mechanism adapted to move said conveyor and feeding means in a predetermined timed relation, and apparatus engageable with one of said articles when the latter is in registration with an outlet of said oven for simultaneously deenergizing said driving mechanism.

3. Conveying mechanism including a pair of related conveyors, means for feeding an article onto Athe loading end of one of said conveyors, mechanism vfor driving said feeding means and conveyors, in a predetermined timed relation, a movable support at the unloading end of one of said conveyors for receiving said article, said support being susceptible of movement under the iniiuence of the weight of said article, and control apparatus including means operable by movement of said support under the influence of one of said articles for rendering said driving mechanism and both of said conveyors inoperative until said article is removed from said support.

4. In apparatus for moving glue coated running boards and mats through respective drying chambers to adjacent outlets of the latter; an endless conveyor in one chamber extending to Within close proximity of its outlet andhaving spaced arms adapted to receive and contact with only limited areas of said glue coated runningv boards, an endless belt type conveyor in the other chamber extending beyond its outlet, mechanism for driving said conveyors in timed relation 4so as to .substantially simultaneously present a partially dried glue coated running board and mat at said outlets, and control apparatus for said driving mechanism located at the outlet of one of said chambers having means operable by engagement with a running board for interrupting the movement of said conveyors when a running board is disposed atsaid outlet.

5. In apparatus for moving glue coated articles through respective drying chambers of an oven from spaced inlets to adjacent outlets thereof, a conveyor in one drying chamber for transfer ring a glue coated article continuously in one direction from the inlet to the outlet of said chamber, a second conveyor in another drying chamber having oppositely moving sides adjacent the inlet and outlet thereof respectively adapted to move articles in respectively opposite directions through adjacent paths normal to the path of movement of said first conveyor from the inlet of said second mentioned chamber to the outlet thereof, driving mechanism adapted to move said conveyors in'a predetermined timed relation, and apparatus engageable with one of said articles when the latter is in registration with an outlet of said oven for simultaneously deenergizing said driving mechanism.

ROGER K. LEE.

vCARROLL L. HUMPHREY.

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