CN1163078A

CN1163078A - Method and apparatus for continuously feeding strip material into a machine

Info

Publication number: CN1163078A
Application number: CN 97103456
Authority: CN
Inventors: 吉安·路易吉·盖拉尔迪; 菲奥伦佐·德拉盖蒂
Original assignee: G Co D
Current assignee: G Co D
Priority date: 1996-03-12
Filing date: 1997-03-11
Publication date: 1997-10-29

Abstract

Method and device (1) for continuously feeding a strip (2) to a machine (3), wherein the strip (2) is continuously fed along a given path (6) through a strip (2) The winding station (28) is extended, wherein the path (6) includes a curved part forming a loop (32); the strip (2) in the winding station (28) passes along the At least a portion of the ring (32) sucks the strip (2) causing it to flex.

Description

The method and apparatus of expecting to supply to continuously in the machine will be with

The present invention relates to band material is supplied to method in the machine continuously.

The present invention is particularly useful for being contained in cigarette manufacturing machine, particularly adorns filter-tip machine, although do not limit application possibility of the present invention, this machine will at length obtain explanation in explanation subsequently.

In known dress filter tip machine, filter tip uses band to be installed on the cigarette, and each band is reeled and wrapped on the part of a filter tip and cigarette to form a cigarette with filter tip.

Described band downcuts from a paper tape, and pulls out and sent into this continuously by a strip feeding device and adorn filter-tip machine from a spool usually.

With the paper roll winding apparatus is a kind of known technology, is used to reduce the rigidity of paper tape, band is wound in can be easy on corresponding filter tip and the cigarette carry out.

Known to U.S. Patent No. 3,962, the coiler device described in 957 comprises a coiling sheet, and its position makes it contact and make the horizontal warpage of this paper tape with this paper tape.Warpage realizes in a winder station, and this station is positioned at along a band material feeding path, the device of should band expecting at gluing and will be with the upstream of the device of expecting to be cut into this filter tip-cigarette band.

In the process of the above-mentioned coiler device of operation, the usually fracture of band material, this mainly is because in the downstream of this winder station, this band material bears very big load.

In this winder station, when this band material is shifted to dress filter tip and machine, be enough to increase suddenly and beyond control the tension force of this band material in the friction of this band material surface generation by this coiling sheet.

Moreover, damage this band material thereby the coiling sheet in described device bears rapid wearing, and need stop this dress filter tip machine continually so that the replacement of the sheet of reeling.

Purpose of the present invention is exactly that method with a kind of continuous supply band material is to overcome above-mentioned shortcoming.

The present invention relates to a kind ofly will supply with continuously the method for a machine with material, described method comprises along the band material feeding step in the path of extending by a band material winder station, band material sleeve warpage in this station, the method is characterized in that: in this winder station, described path comprises that one forms the sweep of a ring, described warpage comprises such stage, and this band material is sucked along the part of described ring at least.

The invention still further relates to and a kind ofly will supply to device on the machine continuously with material.

According to the present invention, provide a kind of and will supply to device on the machine continuously with material, described device comprises: drive unit, this drive unit are used for supplying with the band material along one by the path of a band material winder station; And bending device, being used to make this band material warpage, described bending device is contained in this winder station; This device is characterised in that: in this winder station, described path comprises a sweep that forms a ring; Described bending device comprises the aspirator that aspirates this band material along at least a portion of this ring.

The present invention will reference will be made to the accompanying drawings below, wherein several schematic embodiment only as an example, in the accompanying drawing:

Fig. 1 is the schematic diagram of a preferred embodiment of the disclosed feed arrangement of expression, and wherein a part is represented with sectional view and cutd open the part parts so that miscellaneous part is described better;

Fig. 2 is at the enlarged drawing of the modification of details from the device of Fig. 1; And

Fig. 3 is the schematic diagram of another disclosed preferred embodiment, partly represents with cross section and has cut the part parts so that other parts are described better.

With reference to Fig. 1, label 1 expression supplies to the device of a machine 3 continuously with a band material 2, so that the filter tip (not shown) is installed on the cigarette (not shown).

This device 1 has a line 4, make this band material 2 so that 6 direction of feed 5 is fed into machine 3 along the path, this band material 2 winds off from a spool 7, this spool 7 has a SMIS 8 and is contained on the axle 9, when being driven by a motor 10, himself vertical central shaft of this edge and direction 5 rotates (clockwise direction in Fig. 1).

This device 1 comprises two cylindrical shape pay-off roll 11 and 12 and install in such a way: pay-off roll 11 with 12 along the clockwise direction among Fig. 1, rotate around parallel to each other and

parallel trunnion axis

11a and 12a respectively with axle 9, particularly pay-off roll 11 is coupled by power drive and with motor M.

The drum surface of pay-off roll 11 has equally distributed SS 13, these SSs 13 are communicated with a suction source S by a fixed distributor 14 and a suction chamber 15 with known method, this suction chamber 15 extends along a curved portions 16, makes this band expect that 2 remain on the drum surface of pay-off roll 11 along curved portions 16.As shown in Figure 1, pay-off roll 11 and 12 is set up along a path 6 of overlapping the downstream of slewing rollers 17, the roller that turns to by 18 expressions of one of them is the known compensation roller that one one executing agency 19 connects, and this roller 11 and 12 is arranged on that a gluing station 20 and follows is used to cut off the path 6 of upstream of the station 22 of this band material 2, and this station 20 has the glue spreading apparatus 21 of band material 2.

Have one to drive and shearing device 23 at station 22, this device 23 comprises a power drive drum 24, this drum 24 is around its axle parallel with 12a with axle 11a, rotate with the clockwise direction among Fig. 1, this device 23 also together should be with material 2 to be cut into known method and the roller 25 that equidistant blade 26 is housed and be with section 27, and this band section 27 forms the band of the part of connection filter tip (not shown) and cigarette (not shown).

Also expression among Fig. 1, in the upstream of gluing station 20, this path 6 is also by a winder station 28, and wherein a bending device 29 makes this band expect the 2 direction warpages vertical with direction 5.

As illustrated in fig. 1 and 2: bending device 29 comprises that one is used to the guide 30 with material 2, this guide 30 comprises the bending part 30 that is positioned at pay-off roll 11 opposites, thereby a chamber 31 is formed between this roller 11 and this bending part 30, and the sweep in path 6 forms a ring 32 in described chamber; And can find out that this roller 11 contacts with the surperficial 2a of this band material 2 in the outside of this ring 32.

This bending part 30 has a free end 33 and an end 34 of keying in a pin 35, when being driven by motor 36 with the clockwise or inhour among Fig. 1 and 2, this pin 35 rotates around self axle 35a of the axle 11a that is parallel to roller 11, this bend 30 is rotated around axle 35a, and shift to or leave the drum surface of this roller 11 respectively, to regulate the size of this ring 32.

The length that the end 33 from this bending part 30 of this ring 32 records or the degree of depth are understood time to time change and are detected by a pair of optical pickocff that is contained on this bending part 30, this sensor sends the control device C of a signal to the motor that can control this roller 11 with known method, regulating the speed of this roller 11, thereby this described length always remains in the given scope.

In the embodiment shown in Figure 2, this bending part 30 has the hole 38 that is communicated with this suction source S, makes this ring be formed in the chamber 31 by vacuum, and the surperficial 2a of this band material 2 is sucked positioned against on the surface of the surface of roller 11 and this bending part 30.

When this band material 2 along the path 6 when supplying to this machine 3, this band material 2 is by this station 28, should band material warpage at this, reduce its rigidity by making it by the surface of this roller 11 and the ring 32 between this bending part 30.

Foregoing description clearly illustrates that the tension force in chamber 31 is constant, thereby also is constant basically along the tension force that this ring 32 is sent to this band material 2, and should band expects that 2 can not be subjected to causing rupturing or the unexpected variation of the load torn.

And this bending part 30 leaves or can make the size increase of this ring 32 respectively or reduce near the motion of this roller 11, thereby regulates curling degree according to the rigidity of used band material 2 and/or the radius of curvature of thickness or band.

And then, increase the possibility of the size of this ring 32 by rotating this bending part 30 simply, make when changing old spool into new spool, can be easily, operation and do not tear these band material 2 ground and will be with and expect that the bonding pad is correctly towards these winder station 28 feedings rapidly.

In the embodiment shown in fig. 3, this bending part 30 is replaced by a feed rolls 39, and this roller 39 is connected with suction source S and is installed like this, and when being driven by a motor M1, this roller rotates with the clockwise direction among Fig. 3 around its parallel with axis 11a self 39a.This roller 39 is positioned at the position relative with pay-off roll 11, thereby this two roller forms this chamber 31, has wherein formed this ring 32 by vacuum.

In described embodiment, the length of this ring 32 is detected by a pair of optical pickocff 40, and this sensor is connected on the control device C of this motor M, and the size of this ring 32 then is conditioned by the distance of regulating between this 11a and this 39a.

Claims

1. A method of continuously feeding a strip (2) to a machine (3), said method comprising the step of feeding the strip (2) along a path (6) through which the strip ( 2) at a winding station (28), wherein the strip (2) is bent; the method is characterized in that at the winding station (28), the path (6) includes forming a A curved portion of the ring (32); said bending includes a step in which the strip (2) is sucked at least along a part of the ring.

2. method as claimed in claim 1, is characterized in that: utilize suction device (S) to produce above-mentioned suction, this suction device acts on a surface of this belt material (2) outside this ring (32) (2a) on.

3. A method as claimed in claim 1 or 2, characterized in that the method further comprises a step for adjusting the size of the ring (32).

4. A method as claimed in any one of the preceding claims, characterized in that the method further comprises the step of controlling the length of the loop (32).

5. A device for continuously feeding a strip (2) to a machine (3), said device comprising: drive means (24) for feeding the strip (2) along a path (6), the said path (6) extends through a coiling station (28) of the strip (2); and flexure means (29) for flexing the strip (2), said flexure means (29 ) is mounted on the winding station (28); it is characterized in that: the path (6) includes a curved portion forming a ring (32); ) part of the suction device (S) that sucks the strip (2).

6. The device as claimed in claim 5, characterized in that: the deflection device (29) comprises two guide elements (11, 30) (11, 39) for the strip (2), at least guiding One of the parts (11; 30) (11; 39) is connected to the suction device (S); each guide part (11; 30) (11; 39) is connected to the other guide part (30; 11) (39; 11) opposite, and in contact with a surface (2a) of the strip (2) on the outside of the ring (32), form a cavity together with another guide member (30; 11) (39; 11) Chamber (31); said ring (32) is formed within this chamber (31).

7. The device as claimed in claim 6, characterized in that: said bending device (11, 30) comprises an uncoiling roller (11) and bending parts (30), said uncoiling roller and said suction device (S ) connected and mounted in such a way that the roller (11) rotates around its own axis (11a) when driven by a motor (M); said curved member (30) is pivoted around its free end (34) , when driven by an actuator device (36), the curved member (30) rotates about an axis (35a) parallel to the axis (11a) and the corresponding roller (11) to adjust the size of the ring (32).

8. Device according to claim 7, characterized in that the curved part (30) has a hole (38) communicating with the suction means (S).

9. Device as claimed in claim 6, characterized in that: said parts (11, 30) comprise an unwinding roll (11) and a feed roll (39); said unwinding roll (11) and feed roll (39) are connected to the suction device (S) and mounted in such a way that they rotate about respective axes (11a, 39a) parallel to each other when driven by respective motors (M, M1).

10. A device as claimed in any one of claims 6 to 9, characterized in that it comprises means (37, C) (40, C) for detecting and controlling the length of the loop (32).

11. The device as claimed in claims 7 and 10 or 9 and 10, characterized in that: the detection and control device (37, C) (40, C) is connected with the motor (M) of the uncoiling roller (11), so that The speed of the unwinding roller (11) is adjusted according to the length of the ring (32).