Intermittent rotating gluing-flanging machine for large format multiform metal caps

Abstract

The machine is characterized in that it comprises an upper platform ( 51 ) as a working table provided at its center with a cap-holder rotating disk ( 1 ) with intermittent rotation and equipped with several radial windows ( 61 ) into which respective caps ( 56 ) are housed, four workstations symmetrical and complementary being provided around the rotating disk ( 1 ) and placed with an offset angle of 90° there between, which includes: A cap feeder device ( 2 ), a flanging device ( 3 ), a gluing device ( 4 ) and a device for evacuating ( 5 ) said caps ( 56 ). It further comprises characteristic means for transmitting synchronized motions in order to perform various operations on the caps ( 56 ).

1 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, being intended to flange metal caps by stamping and then gluing said caps in proximity to the perimeter contour thereof, characterized in that it comprises an upper platform  51  as a working table provided at its center with a cap-holder rotating disk ( 1 ) with intermittent rotation and equipped with several radial windows  61  into which respective caps ( 56 ) are housed, four symmetrical and complementary workstations being provided around the rotating disk ( 1 ) and placed with an offset angle of 90° there between, which include:
 a feeder device ( 2 ) that individually deposits the caps ( 56 ) in each of the radial windows ( 61 ) of rotating disk ( 1 ) when the respective radial window ( 61 ) is faced with such a feeder device ( 2 ); 
 a flanging device ( 3 ) that deforms by stamping the cap ( 56 ) in order to configure its final geometry by modifying the perimeter profile in such a cap ( 56 ); 
 a gluing device ( 4 ) that fills the perimeter channel ( 60 ) with an injected rubber material; 
 an evacuation device ( 5 ) that removes the caps after being glued; 
 
       further comprising means for transmitting synchronized motions, through which the rotating disk ( 1 ) rotates with stops at four workstations in order to simultaneously perform different operations on the respective caps that are arranged in correspondence with such workstations, at least some of these four work operations being also carried out through the synchronized transmission means having continuous motion. 
     
     
         2 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 1 , characterized in that the means for transmitting synchronized motions are based on a motor element ( 9 ) which transmits its motion to a camshaft ( 11 ) and the rotation of the latter is transmitted to an indexer ( 8 ) by using a chain ( 50 ) coupled to a lower pinion ( 53 ) integral with said camshaft ( 11 ) and an upper pinion ( 52 ) integral with a side shaft ( 46 ) of the indexer ( 8 ), this including an upper shaft ( 49 ) that transmits motion to the cap-holder rotating disk ( 1 ). 
     
     
         3 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 2 , characterized in that the flanging device ( 3 ) comprises a matrix-holder casing ( 23 ) to which a matrix ( 16 ) as a female element faced with a punch ( 17 ) as a male element alternately moving up and down against the inner cavity of the matrix ( 16 ) in order to form the cap ( 56 ) by stamping is fixed, such punch ( 17 ) moving by a connecting rod-crank mechanism that receives motion from the camshaft ( 11 ). 
     
     
         4 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 3 , characterized in that the camshaft ( 11 ) has an anterior eccentric appendix ( 54 ) to which an anterior swivel joint ( 18 ) is attached, this being connected to a threaded end section of a threaded shaft ( 19 ) hingely connected at its free end to a cylindrical body ( 20 ) attached to a base ( 21 ) integral with the punch ( 17 ). 
     
     
         5 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 4 , characterized in that the hinged connection between the threaded shaft ( 19 ) and the cylindrical body ( 20 ) is a ball joint. 
     
     
         6 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 4 , characterized in that the upward/downward motion of the punch ( 17 ) is ensured by at least two shanks ( 22 ) in which the base ( 21 ) of the punch ( 17 ) is guided, which shanks ( 22 ) connected by one of their ends to the upper platform ( 51 ) as a working table. 
     
     
         7 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 3 , characterized in that the matrix-holder casing ( 23 ) is foldable, for such purpose being coupled to a transverse shaft ( 57 ), while having an anchor for locking its active position. 
     
     
         8 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 7 , characterized in that the anchoring means for locking the matrix-holder casing ( 23 ) comprise a lock shaft ( 24 ) with an extreme head ( 59 ) housed inside an inner box ( 58 ) of the matrix-holder casing ( 23 ), while such a lock shaft ( 24 ) is associated with a gear ( 25 ) provided with a locking/unlocking crank ( 26 ). 
     
     
         9 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 1 , characterized in that the gluing device ( 3 ) comprises a copying mechanism determined from at least one car ( 34 ) that includes at the bottom an injector ( 27 ) of rubber material, which car ( 34 ) is coupled and guided ( 35 ) in parallel rods, said car being provided at its top with at least one roller follower ( 31 ) housed in a groove ( 62 ) with closed contour according to the path of the perimeter channel ( 60 ) of the caps ( 56 ), said groove ( 62 ) being made in a static body of copying cam ( 63 ) disposed above a main pulley ( 33 ) that includes the rods ( 35 ) and cars ( 34 ). 
     
     
         10 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 9 , characterized in that the rotational motion of the main pulley ( 33 ) is transmitted by a servomotor ( 32 ) with the interposition of a major cogged belt ( 64 ) coupled to a perimeter cog of the main pulley ( 33 ) and minor pulleys ( 65 ) coupled to side shafts ( 66 ). 
     
     
         11 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 9 , characterized in that the main pulley ( 33 ) rotates around a main shaft ( 38 ) connected at its top to a frictionless rotating joint ( 7 ) that includes a reservoir ( 36 ) for containing the rubber material in liquid state, which reservoir ( 36 ) is connected to a distributor ( 37 ) associated with guns ( 28 ) including the injectors ( 27 ), which guns ( 28 ) are independently supplied with liquid rubber and air. 
     
     
         12 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 9 , characterized in that the groove ( 62 ) of the static body of the copying cam ( 63 ) comprises such a groove with an eccentric channel defined by two cam profiles ( 29 - 29 ′) according to two upper and lower bearings of the roller follower ( 31 ) and an outer countercam profile ( 30 ) consistent with an intermediate bearing of the roller follower ( 31 ). 
     
     
         13 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 9 , characterized in that the assembly of the gluing device ( 4 ) moves upward through a posterior lifting device ( 39 ) that includes a linear actuator to drag the gluing device ( 4 ) coupled to vertical guides. 
     
     
         14 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 9 , characterized in that the injectors ( 27 ) of rubber material and the roller followers ( 31 ) are arranged in the same vertical direction. 
     
     
         15 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 2  characterized in that the device ( 5 ) for evacuating caps ( 56 ) comprises:
 a pusher ( 40 ) with an upward/downward reciprocating motion that moves the respective cap ( 56 ) upwards from its location in the respective radial window ( 61 ) of the rotating disk ( 1 ); 
 a magnetic conveyor belt ( 41 ) coupled to pulleys. 
 
     
     
         16 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 15 , characterized in that the reciprocating motion of the pusher ( 40 ) is generated by a connecting rod/crank mechanism transmitted from the camshaft ( 11 ). 
     
     
         17 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 16 , characterized in that the connecting rod/crank mechanism to create the reciprocating motion of the pusher ( 40 ) is determined from an outer eccentric appendix ( 42 ) wherein a lower swivel joint ( 44 ′) that connects to a shaft ( 43 ) connected at its free end with another upper swivel joint ( 44 ) attached to the pusher ( 40 ) guided in vertical bars ( 55 ) is hinged. 
     
     
         18 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 1 , characterized in that the feeder device ( 2 ) comprises a tower ( 12 ) as a hopper for feeding the caps ( 56 ) stacked and faced with the respective radial window ( 61 ) of rotating disk ( 1 ), the base of such tower ( 12 ) including as bottom and support for the caps, upper blades ( 13 ) and lower blades ( 14 ) arranged in separate planes, with all these being connected to actuation devices, activation of which causes opposite and simultaneous linear displacements of the upper blades with respect to the lower ones and vice versa, such displacements being perpendicular to the gravity displacement of the caps ( 56 ) stacked on the tower ( 12 ). 
     
     
         19 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 18 , characterized in that it comprises an anterior lifting device ( 48 ) that vertically moves on two guides to the assembly of the device ( 2 ) for feeding caps ( 56 ), which displacement is performed by a linear actuator. 
     
     
         20 . Intermittent rotating gluing-flanging machine for large format multiform metal caps, according to  claim 18 , characterized in that the upper surface of a table ( 51 ) includes some boxes with magnets ( 47 ) for fixing the caps ( 56 ) in each of the substations wherein it is necessary to transport thereof.