Machine for making pods containing infusion products
A machine for making pods ( 2 ) containing products for infusion including a first roll ( 3 ) for feeding a first web ( 4 ) of filtering paper material along a predetermined path (P), a second roll ( 5 ) for feeding a second web ( 6 ) of filtering paper material along a predetermined path (P′), a station ( 7 ) for dispensing and successively placing individual charges ( 8 ) of product on the first web ( 4 ), and a joining station ( 11 ) for superposing and joining the first web ( 4 ) and the second web ( 6 ) in such a way as to form a continuous succession ( 12 ) of pods ( 2 ); the machine also includes, upstream of the dispensing station ( 7 ), a magazine ( 13 ) for successively feeding a series of elements ( 14 ) for containing the infusion product and a station ( 21 ) for forming impressions in the first web ( 4 ) and positioning the elements ( 14 ) thereon.
1. A machine for making pods ( 2 ) containing products for infusion, the machine comprising at least: means ( 3 ) for feeding at least one first web ( 4 ) of filtering paper material along a predetermined path (P); means ( 5 ) for feeding at least one second web ( 6 ) of filtering paper material along a predetermined path (P′); a station ( 7 ) for dispensing and successively placing individual charges ( 8 ) of product on the first web ( 4 ), said charges ( 8 ) constituting the contents of the pods ( 2 ); means ( 11 ) for superposing and joining the first web ( 4 ) and the second web ( 6 ) to form a continuous succession ( 12 ) of pods ( 2 ); the machine further comprising, upstream of the dispensing station ( 7 ), relative to the path (P), means ( 20 , 13 , S) for successively feeding a series of elements ( 14 ) for containing the infusion product; and means ( 21 ) for forming impressions in the first web ( 4 ) and positioning the elements ( 14 ) thereon; each of the elements ( 14 ) being interposed between the first web ( 4 ) and the second web ( 6 ) to define a site ( 102 ) on the first web on which a charge ( 8 ) can be placed, wherein the positioning and impression forming means ( 21 ) comprise at least one piston ( 18 ) designed to push each of the elements ( 14 ) against a respective portion ( 10 ) of the first web ( 4 ) to form an impression in the portion ( 10 ) and to position each of the elements ( 14 ) inside a respective impressed portion ( 10 ).
2. The machine according to claim 1 , characterized in that the means ( 20 , 13 , S) for successively feeding the containment elements ( 14 ) comprise a magazine ( 13 , S) with a chute for containing the elements ( 14 ) in stacked form.
3. The machine according to claim 1 , characterized in that the machine comprises means ( 22 ) for scoring the first web ( 4 ) to make a plurality of crease lines ( 23 ) on the web ( 4 ), said crease lines ( 23 ) being made around each impressed portion ( 10 ) on the web ( 4 ).
4. The machine according to claim 3 , characterized in that the scoring means ( 22 ) are located upstream of the positioning and impression forming means ( 21 ) to prevent the positioning and impression forming means ( 21 ) themselves from tearing the first web ( 4 ).