JPS60188051A - Rod-shaped article conveying and rotary feeding apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a device for transporting rod-shaped articles in a direction transverse to their axis and for rotating these articles about their axis.

Although the present invention is particularly useful in the manufacture of smoking articles, particularly cigarettes, the following description in this regard is merely a non-limiting example.

[Conventional technology]

Cigarette manufacturing machines are known in which cigarettes are fed on a conveying device in a direction transverse to its axis and through a number of operating stations in which the moving cigarettes are subjected to various operations.

In order to carry out many of the above operations, it is required that the cigarettes be rotated about their axis so that they run at the correct angle to the axis of the cigarettes.

In known manufacturing machines, said rotation of the cigarettes around their axis is usually carried out by rolling, and this rolling is usually carried out by
This is done by a fixed surface provided along the path followed by the cigarettes and brought into lateral contact with the cigarettes, whereby these cigarettes are transported on the conveying device for this purpose. is rotated inside each laterally widened recess.

If not carried out with great precision, said rolling action, which is still considered indispensable in modern cigarette manufacturing machines, can lead to a number of serious failures.

In fact, no expert knows that the rolling of a cigarette, if not without direct loss of tobacco material, at least significantly reduces the structural resistance of the cigarette, so that it is also safe to do so. It has been found that this significantly reduces the strength of the cigarettes to withstand such treatment.

[Problem that the invention seeks to solve]

The purpose of the present invention is to provide cigarettes without any transfer,
It is an object of the present invention to provide a device for rotating a transversely moving cigarette around its axis.

[Means for solving problems]

With this object in mind, the present invention provides an apparatus for conveying rod-shaped articles in a direction transverse to their axis and for rotating these cigarettes around their axis, including a conveyor and a conveyor in the direction of travel of the conveyor itself. a plurality of moving recesses carried on said conveyor in a direction transverse to said conveyor, each adapted to receive a respective said article; a number of gear trains connected and as the recess progresses over a given portion of the conveyor;
cam means adapted to continuously actuate said gear train in order to rotate said recesses forward and rearward by an angle given to said axial circumference; be.

〔Example〕

A non-limiting device of the invention will now be described with reference to the accompanying drawings.

In FIGS. 1 and 2, ■ indicates a conveyor or supply roller for storing cigarettes 2; this conveyor or supply roller 1 is shown in its entirety at 3 and, in addition to the row 21, further includes a supply roller 4 and a stacker. It forms part of a machine comprising a drop-off roller 5, which rollers 24 and 5 rotate in the same way and are arranged to abut the edge of the roller 1 at two different points.

Roller l, indicated in its entirety at 6, forms part of a conveyor adapted to transport cigarettes 2 transversely to its axis and at the same time rotate the cigarettes around its axis.

As shown in FIG. 2, the roller 1 is rotatably supported by a fixed shaft 7 which projects from the side wall 8 of the machine 3 and has an outer flange 9 at its free end. The inner ring of the first bearing lO supporting the first bearing 1O is engaged with the outer circumference of the inner ring. The row 21 has an essentially cylindrical bell 11 arranged coaxially with the shaft 7 and fitted with its concave side facing the wall 8 to this shaft.
It is equipped with The bell 11 provides a bottom wall "2" with an axial central bore 13 for receiving the bearing 10, and an essentially cylindrical side wall 14.

The side wall 14 of the bell 11 has a small diameter portion 1 adjacent to the flange 9.
5 and an enlarged portion 16 arranged facing the wall 8 and joined to the portion 15 by an annular nozzle 17. Extending radially inwardly from the inner surface of the wall 14 are two annular flanges 18.19, a first flange disposed on the shoulder 17 and a second flange disposed on the free end of the wall 14, A cylindrical hole 20 facing the shaft 7 and coaxial with the shaft 7 is defined, and a second bearing 21 for supporting the roller 1 on the shaft 7 is accommodated.

On the flange 19, the side wall 14 is provided with an external gear 22 which meshes with a gear 23, which is rotatably supported on the wall 8 and which rotates with the rollers 4 and 5 at a given constant speed. It is connected to a further drive (not shown) which rotates the roller 1 about its own axis in the opposite direction.

The roller 1 houses a rotating device 24 adapted to rotate the cigarettes 2 about their respective axes.

As shown in FIG. 3, this device 24 includes two sets of gear trains 25.
．． 26, each of which is associated with an alternating pair of recesses 27 arranged axially around the outer edge of the roller 1 and adapted to receive each cigarette 2 respectively. From the foregoing it can be seen that when one of said pair of recesses 27 corresponds, for example, to a gear train 25, two adjacent pairs of recesses 27 correspond to a gear train 26.

Each gear train 25 includes a rocker arm 28 with a pivot pin 29 having an @ line parallel to the axis of the bell 11. This pin 29 rotatably engages in a through hole 30 formed through the flange 18, and its end facing the wall 12 is integrally connected to a first arm 31 perpendicular to the pin 29. , this arm 31 is connected at its free end to tappet means having a roller 32 running along a cam 33.

The cam 33 is integral with the shaft 7 and has an active surface formed around the axis of the shaft 7 itself.

At the end facing the wall 8, the pin 29 is connected to a sector gear 34
This sector gear 34 is integrally connected to the second arm consisting of
are integral with tappet means comprising a roller 35 extending in a plane perpendicular to the axis of the shaft 7 and running along a cam 36. The cam 36 is integral with the shaft 7 and strikes an active surface formed around the axis of the shaft 7 itself.

Each sector gear 34 meshes with two gears 37, and each gear 3
7 is fitted onto each shaft 38 parallel to the shaft 7, which shaft 38 is rotatably mounted at one end through a hole 39 formed in the shoulder portion 17 of the bell 11 and at the other end is fitted on a flange 19. It passes through a hole 40 formed in and is rotatably attached.

The end of each shaft 38 facing the wall 12 extends out of the bell 11 through the hole 39 and extends outside the portion 15 on the wall 14 in the axial direction defining each time F9T27. It is integrally connected to an axial attachment 41 having 64 of. Along this recess 27 runs a discharge groove 42, which is connected to a duct 43 extending along each axis 38) and on the side facing wall 8 to an exhaust pipe (not shown). It communicates with the communicating drain groove 44 .

A groove 44 is formed on the front surface of the annular distribution plate 45 and
and extends around the axial circumference of the shaft 7 between the points essentially in contact between the rollers 5 and 1.

The distribution plate 45 is axially slidably mounted on a cylindrical bushing 46, which bushing 46 is coaxial with the shaft 7 and integral with the wall 8, and is flexible at the end of the shaft 38 by a number of springs 47. It is held in such a way that it can be freely contacted.

Each gear train 26 includes a rocker arm 48 having a pivot pin 49 rotatably mounted through a through hole 50 in the flange 19. The rocker arms 48 are essentially identical to the rocker arms 28, each comprising a first arm 51 and a sector gear 53;
This arm 51 is similar to the arm 31 and includes tappet means with a row 552, and the sector gear 53 is connected to the sector gear 34.
It has a tappet roller 54 which is similar to the above.

Each roller 54 is mounted in contact with a working surface of a cam 36, while each roller 52 is in contact with another cam 55 which is integral with the shaft 7 and has a working surface formed around the axis of the shaft 7 itself. installed.

Each sector gear 53 has two gears 37 mounted on each shaft 38, corresponding to a pair of recesses located between two adjacent pairs of recesses 27 controlled by each sector gear 34. meshes with

As shown in FIG. 3, a row 232 and a row 252 run along the cams 33 and 35, respectively, and these cams are identical and have a lower portion 56 and a higher portion 5, respectively.
7 and two inclined joint parts 58.

On the other hand, the cam 36 has rollers 3 arranged alternately.
5 and roller 54 run in the same way as cam 33.55,
This cam 36 has an active surface consisting of a low part 59, a high part 60 and two inclined joint parts 61.

When the bell 11 is rotated by the drive gear 23, the rollers 32 and 52 roll along the working surface of each cam 33 and 55, while the Cl-735 and 54 roll along the working surface of the cam 36. move.

When the roller 32 leaves the lower part 56 on the cam 33 and begins to roll along one of the inclined parts 58, the corresponding roller 35 leaves the corresponding lower part 59 on the cam 36 and begins to roll along one of the inclined parts 58. The transfer begins along the corresponding sloped portion 6e.

As rollers 32 and 35 roll along said respective sloped portions 58 and 61, corresponding rocker arms 28
and correspondingly the corresponding fan 34 is rotated stepwise around the axis of the corresponding bin 29 between two different end angular positions and thus the two corresponding appendages 41
is rotated around its axis.

The &1 dynamic ratio between each sector gear 34 and the corresponding wheel 37 is such that the angular movement of the sector gear 34 between said two end angular positions is typically greater than 360° around its axis. It is something that causes rotation.

As can be seen, when said rollers 32 and 35 travel along the other corresponding pair of inclined portions 58 and 61, the appendage 41 is rotated back in the opposite direction towards the starting position.

In the device described above, the use of three cams 33, 36 and 55 is all due to specific structural requirements, for example to provide positive two-way guidance of rollers 35 and 54 as shown. 1 with two grooves on opposite sides to
Two cams 36 are sufficient to provide angular control of sector gears 34 and 54, and cams 33 and 55 or rollers 3
I have no peace of mind about 2 and 52.

Furthermore, the provision of the two subassemblies 25 and 26 is based solely on the need to keep the diameter of the roller 1 within given limits. By making the actual FifK, o-ra l a large diameter, and the cam also having a large diameter accordingly,
This allows all of the rocker arms 28 and 48 to be placed on the same side of the cam 36.

The fact that each sector gear 34 and 53 is assigned two consecutive recesses 27 is also an arbitrary construction choice, as each recess 27 is assigned its own sector gear. Or each sector gear has three or more recesses 2
It is clear that a rotary device controlling 7 is well suited.

Finally, although in the device described above the rotary device 24 is convex to the row 21, the shape of the cams 33, 36 and 55 clearly allows the device 24 to be adapted to any shape, for example an elongated annular conveyor. You may change it to improve your performance.

Margin below

[Brief explanation of the drawing]

1 is a schematic front view of a portion of a filter assembly machine adapted to the conveying device of the present invention; FIG. 2 is a schematic sectional view of the conveying device of the present invention; FIG. It is a perspective view of the part of Figure 8JJ2 with the part removed. ■... Roller, 2... Cigarette, 4... Supply roller, 5... Loading/unloading roller, 6... Conveying device,
7...Fixed shaft, 25.26...Gear train, 27...
Recess, 33.36.55... cam, 32.35, 52.54... tappet. Patent Applicant C, D Socheta Bell Azioni Patent Attorney Akira Aoki Patent Attorney Kazuyuki Nishidate Patent Attorney Kyosuke Nakayama Patent Attorney Akira Yamaguchi Masaya Nishiyama

Claims (1)

[Claims] 1. A conveyor for transporting rod-shaped articles (2) in a direction transverse to the axis thereof and rotating these rod-shaped articles around the axis, comprising a conveyor (1); (1) carried on the conveyor (1) in a direction transverse to its own traveling direction, and each of the articles (
2) multiple moving recesses (27) adapted to receive
and a number of gear trains (25° 26) carried on said conveyor (1) and each connected to at least one respective said recess (27), and said recess (27) is connected to said conveyor (1). 1) said gear train (25) in order to rotate said recess (27) forward and backward by an angle given to the circumference of its axis as it advances over the stressed part;
, 26), the cam means (
33, 36, 55). 2. Each said gear train (25, 26) is pivotally connected to said conveyor (1) and has said cam means (33,
a rocker arm (28, 48) provided with tappet means (32° 52) cooperating with the rocker arm (28, 48) and provided at its other end with a sector gear (34° 53) connected to at least one said recess (27); An apparatus according to claim 1, characterized in that it comprises: 3. Each of the nine recesses (27) is integrally connected to each gear (37) coaxial with the recess (27) and connected to the gear train (25, 26). The device according to claim 2. 4. Each of the sector gears (34, 53) has at least two
4. Device according to claim 3, characterized in that it meshes with two gear wheels (37). 5. Further tappet means (35, 54) are carried on each said sector gear (34, 53), and further cam means (36) are provided for cooperation with said tappet means (35, 54). An apparatus according to claim 2, 3 or 4, characterized in that: 6. said conveyor comprises rollers (1) mounted for rotation around its own axis; said gear train (2);
5, 26) are arranged around the axis of rotation of the roller (1).