摘要:
Roll stand for feeding paperweb to i.e. a printing press comprising a rotating reel (1) for a first roll (8), from which a web is fed, and a second roll (11), which is to replace the first roll (8) when its diameter has decreased to a previously determined value, and also comprising means for splicing of the expiring web (9) to the replacement roll (11), and means for cutting said web (9). The roll stand (1) comprises two roll spindles (7.1, 7.2). Each spindle (7.1, 7.2) is connected to an acceleration motor (16) by a free-wheel drive transmission (10) in a first frame end section (2), preferably arranged in direct connection to each spindle (7.1, 7.2).
摘要:
Film supply apparatus (2) has two film holders (22a, 22b) supporting two rolls of film as film (101) on a use side and film (100) on a stand-by side respectively, feed rollers (3) for feeding film (101) on the use side, film holding member (34) holding a leading end portion of film (100) on the stand-by side, sucker (36) pulling back film (100) on the stand-by side upstream in a feeding direction and heater bar (31) heat-sealing two films (100, 101). Sucker (36) attracts film (100) by suctioning and pulls film (100) back to a position where a leading end portion thereof faces heater bar (31).
摘要:
Film supply apparatus (2) has two film holders (22a, 22b) supporting two rolls of film as film (101) on a use side and film (100) on a stand-by side respectively, feed rollers (3) for feeding film (101) on the use side, film holding member (34) holding a leading end portion of film (100) on the stand-by side, sucker (36) pulling back film (100) on the stand-by side upstream in a feeding direction and heater bar (31) heat-sealing two films (100, 101). Sucker (36) attracts film (100) by suctioning and pulls film (100) back to a position where a leading end portion thereof faces heater bar (31).
摘要:
There is described an apparatus (1) for splicing a new web (3), provided with repeated patterns, to a web in use (2), also provided with repeated patterns and fed, at a working speed (W) and along a predetermined path (P), to a processing machine; the apparatus (1) comprises: a first and a second support hub (11, 10) respectively supporting in use a first and a second reel (5, 4) of the webs (2, 3) to be spliced and rotating about axes (E, D) parallel to one another; joining means (13) arranged adjacent to a working portion (P1) of the path (P) and selectively activated for adhesively bonding a segment (3a) of the new web (3) to a segment (2a) of the web in use (2) in an overlapped position; and cutting means (14) to perform a cutting operation on the web in use (2) at an area thereof located upstream of the overlapped and bonded segments (2a, 3a); the first and second support hub (11, 10) are independently rotated about their axes (E, D) by first and second actuator means (27, 26), respectively; the joining means (13) comprise pressing means (75) selectively activated to press the segments (2a, 3a) onto one another while passing along the working portion (P1) itself and while the segment (3a) of the new web (3) is advanced by the first actuator means (27) at the working speed (W) of the web in use (2). (Figure 3)
摘要:
The apparatus for combining tobacco sheets (3, 4) comprises a first shaft for carrying a first bobbin (30) of tobacco sheet (3) and a second shaft for carrying a second bobbin (40) of tobacco sheet (4). The apparatus also comprises a splicing unit (2) for combining an end portion of tobacco sheet from the first bobbin (30) to a head portion of tobacco sheet from the second bobbin. The splicing unit comprises a cutting device (20) for cutting the tobacco sheets such as to provide complementary cuts to the tobacco sheets (3) from the first bobbin and from the second bobbin (4), a dispensing device (23) for dispensing water to at least one of the tobacco sheets (3, 4), and a combining device (24) for applying force onto the tobacco sheets thereby producing a spliced tobacco sheet.
摘要:
A film feeding device etc. in which, even if film rolls in which tapes are applied to joint between films of the rolls are used, an occurrence of a bag making failure caused by the tape is prevented. A film feeding mechanism (10A) has a receiving member (72) for holding the leading edge of a film (1 B) of the standby side and a joining sealer (71) for joining films (1A, 1B). A tape (B) applied to the film (1A) on the use side is detected by a sensor (83), and according to the result of the detection, a cutter (81) cuts of the film (1A) at a portion on the downstream side of the tape. Then, the cut film (1A) and the film (1B) of the standby side are joined by the joining sealer (71), and the two films joined are sent as a long film.
摘要:
A device for changing reels (1) of film (2) on machines for wrapping products comprises a unit (12) for substituting a finished reel (le) with a new reel (1), the unit being mobile between a non-operating position in which it is distanced from an operating zone of a ring-shaped structure (5), and an operating position, in which it is close to the operating zone and to a wrapping unit (7); the unit (12) comprises first means (13) for detaching and picking up the finished reel (le) from a support shaft (8), a magazine zone (14) for at least one new or replacement reel (1) which can be stably attached to the support shaft (8), second means (15) for picking up the free end (2a) of film (2) from the replacement reel (1) and mobile along a path (P1) covering a preset film (2) path (P), to allow film (2) positioning close to a product (3) to be wrapped.
摘要:
Roll stand for feeding paperweb to i.e. a printing press comprising a rotating reel (1) for a first roll (8), from which a web is fed, and a second roll (11), which is to replace the first roll (8) when its diameter has decreased to a previously determined value, and also comprising means for splicing of the expiring web (9) to the replacement roll (11), and means for cutting said web (9). The roll stand (1) comprises two roll spindles (7.1, 7.2). Each spindle (7.1, 7.2) is connected to an acceleration motor (16) by a free-wheel drive transmission (10) in a first frame end section (2), preferably arranged in direct connection to each spindle (7.1, 7.2).