CN101390655A

CN101390655A - Tobacco shred distribution unit

Info

Publication number: CN101390655A
Application number: CNA2008102131632A
Authority: CN
Inventors: M·萨托尼; D·达罗索; F·曼戈利; U·詹尼笛
Original assignee: GD SpA
Current assignee: GD SpA
Priority date: 2007-09-17
Filing date: 2008-09-16
Publication date: 2009-03-25
Also published as: ITBO20070628A1; DE102008047626A1

Abstract

A tobacco distribution unit has a downward guided chimney (2) with an inlet part (3) and an outlet part (4) for tobacco (200). The inlet part (3) is provided in proximity of a carding roller (109) of a cigarette packing machine to receive cut tobacco. The outlet part (4) is provided in proximity of an extraction unit (112) of the cigarette packing machine to discharge the cut tobacco. Compacting devices (5) works along a vertical wall (6) of the chimney (2) to absorb the tobacco (200) in the chimney (2) and convey the tobacco to the outlet part (4), thereby assuring uniform density of tobacco collected by a picking unit (112).

Description

Tobacco shred distribution unit

Technical field

The present invention relates to a kind of tobacco shred distribution unit on cigarette manufacturing machine.

Background technology

Allocation units are arranged on cigarette manufacturing machine,, and pipe tobacco is fed to pickup unit forward so that accept the pipe tobacco of combing from carding roller.

These allocation units comprise the decline pipeline, and the top of decline pipeline is positioned near the carding roller, and the bottom is positioned near the pickup unit.

Pickup unit is accepted pipe tobacco from the bottom of decline pipeline, and pipe tobacco is fed on the conveyer belt, and this conveyer belt unloads the pipe tobacco of having carried in the bottom of increase in pipeline.

The suction or the action of blowing cause pipe tobacco to rise along increase in pipeline, and the below that is deposited on the suction tape cell then is to form continuous tobacco rod.

The form with pantostrat that it is highly important that for pipe tobacco is fed on the conveyer belt, and this pantostrat is consistent as much as possible aspect its thickness and density.

In fact, the uniformity of the continuous tobacco rod that will form depends on aforesaid tobacco layer, and this will influence interior pipe tobacco uniformity of cigarette and the pipe tobacco uniformity between the cigarette again.

In known maker, the down-comer road has the cross section of substantial rectangular, and extend transverse to the feed direction of conveyer belt on long limit.

Have been noted that a large amount of pipe tobaccos that are fed in the decline pipeline by carding roller can not stand any variable density when it falls by pipeline, therefore, it can be replicated in original all inconsistencies that have or that produced by carding roller in a large amount of pipe tobaccos.

This has adverse effect for the uniformity that is deposited on the tobacco layer on the conveyer belt, and finished product (cigarette) is also had adverse effect.

In order to overcome this problem, develop multiple device and be controlled at the pipe tobacco amount that has in the decline pipeline constantly, thereby increased or reduced the pipe tobacco amount that is fed into described pipeline, therefore realize constant pipeline pack condition.

Like this, can control the pipe tobacco volume in the pipeline, and therefore control the pipe tobacco volume that will be transported to conveyer belt constantly, control is deposited on the size of the tobacco layer on the conveyer belt thus.

Yet, the uncontrollable tobacco density that is transferred to conveyer belt, the constant density of the pipe tobacco in the tobacco layer that also can't guarantee on described conveyer belt, to deposit.

Summary of the invention

The purpose of this invention is to provide a kind of tobacco shred distribution unit, this tobacco shred distribution unit does not have above-mentioned problem.

More particularly, the objective of the invention is to propose a kind of tobacco shred distribution unit, in this tobacco shred distribution unit, the tobacco layer with constant volume and density can be transferred on the conveyer belt.

According to the present invention, a kind of tobacco shred distribution unit is provided, wherein, feature as one in the appended claims or multinomial as described in.

Description of drawings

To non-limiting example of the present invention be described referring to accompanying drawing now, wherein:

Fig. 1 shows the schematic isometric that comprises according to the cigarette manufacturing machine of tobacco shred distribution unit of the present invention;

Fig. 2 is the partial sectional view of details shown in Figure 1.

The specific embodiment

Referring to accompanying drawing, Reference numeral 1 is used for integrally indicating tobacco shred distribution unit.

Fig. 1 shows the part of cigarette manufacturing machine, more particularly, presents the unit 100 with feeding tobacco-thread 200, to be formed the Continuous Flow of pipe tobacco particle by a large amount of pipe tobaccos.Comprise that the part of presenting with supply unit 100 is comprised in the vertical shell 101, this housing is limited by horizontal wall 102 at the top, is limited by two vertical walls 103 at sidepiece.

Horizontal wall 102 has chamber 104, and to gather the pipe tobacco 200 that is connected to pipe tobacco treatment box (not shown), this pipe tobacco treatment box is commonly referred to as " primary device ".

Specifically, it is processed and be transported in the chamber 104 to pour tobacco leaf in the case into.

Removable wall 105 is arranged in gathering chamber 104, and this removable wall 105 can open or close chamber 104 discontinuously along the direction of comb unit 106, and this comb unit 106 is presented pipe tobacco 200 from aforementioned accumulation cavity chamber 104.

Comb unit 106 comprises motor-driven conveying roller, and this motor-driven conveying roller is towards underlying chamber 107 feeding tobacco-threads 200, and the bottom of this underlying chamber 107 is sealed by conveyer belt 108.

Chamber 107 holds carding roller 109, and the axis of this carding roller 109 is arranged to transverse to vertical wall 103, and is arranged on the downstream of conveyer belt 108.

Except carding roller 109, comb unit 106 also comprises feed roller 110, and this feed roller 110 rotates along the equidirectional with carding roller 109, and is tangential to carding roller 109 basically.

Because this device, deposit to pipe tobacco 200 on the conveyer belt 108 by conveying roller and be transferred and be with 108 to be pushed against on the carding roller 109, the pipe tobacco 200 that this carding roller 109 is identical with the radial dimension of the tooth of carding roller basically with a layer thickness move to chamber 107 the outside and with the downstream of feed roller 110 tangent positions.

Send the axis that roller 111 has the axis that is parallel to carding roller 109, send roller 111 and pick up tobacco layer 200, the form of pipe tobacco with discrete particles sent in the allocation units 1 from carding roller 109.

Allocation units 1 are transferred to pickup unit 112 with pipe tobacco 200, and this pickup unit 112 is transported to increase in pipeline 113 with pipe tobacco 200, and the top of this increase in pipeline 113 is communicated with the unit 114 that forms continuous tobacco rod 200.

In an illustrated embodiment, pickup unit 112 comprises pick-up roller 115 and sends roller 116 that they are worked together so that aforesaid pipe tobacco 200 is transferred to allocation units 1 outside.

Pick-up roller 115 sends to the form of pipe tobacco 200 with discrete particles on the conveyer belt 117, sees from Fig. 1, and this conveyer belt 117 moves from right to left obliquely, arrives up to its end till the inlet below of increase in pipeline 113.

The top of increase in pipeline 113 by two suctions be with 118 seal, be with on 118 in suction, the pipe tobacco particle builds up to form corresponding tobacco rod, finally produces cigarette.

According to the above, allocation units 1 are used for pipe tobacco 200 is transferred to conveyer belt 117, producing the layer with constant altitude and density along whole conveyer belt, thereby guarantee the formation of continuous tobacco rod, in this continuous tobacco rod, it is constant that tobacco density keeps on its whole length.

For this reason, allocation units 1 comprise decline pipeline 2, and this decline pipeline 2 has intake section 3 and the exit portion 4 that is used for pipe tobacco.

As mentioned above, intake section 3 is positioned near the carding roller 109 accepting pipe tobacco, and exit portion 4 is positioned near the pickup unit 112 to discharge pipe tobacco.

Advantageously, allocation units 1 comprise along the compaction apparatus 5 of vertical wall 6 work of decline pipeline 2.

When pipe tobacco 200 entered decline pipeline 2, these compaction apparatus 5 intercepting pipe tobaccos pinched pipe tobacco towards the exit position; Specifically, compaction apparatus 5 accumulates to pipe tobacco 200 mutually neat with exit portion 4, thereby produces the accumulation part of the pipe tobacco 200 with constant density at exit portion 4 places.

In this preferred embodiment, as shown in Figure 2, compaction apparatus 5 comprises several pins or pitches 7, these pins or pitch 7 and within decline pipeline 2, work, and move to exit portion 4 from intake section 2.

Specifically, fork 7 is to move to the exit portion 4 of decline pipeline 2 greater than the intake section 3 of pipe tobacco 200 along the speed of pipeline 2 free-falling speed from decline pipeline 2.

Should be emphasized that pipe tobacco 200 is the speed that pipe tobacco 200 moves through pipeline 2 when not having compaction apparatus 5 along the free-falling speed of pipeline 2 inboards.This speed depends on the speed that pipe tobacco 200 is sent to the intake section 3 of carding roller 109.

Because the speed of fork 7, is guaranteed pipe tobacco greater than the free-falling speed of pipe tobacco and is intercepted and pinch towards exit portion 4 by fork 7 effectively.

Like this, pipe tobacco accumulates in exit portion 4, and at these exit portion 4 places, pipe tobacco is " compression " or " compacting ", thereby when pipe tobacco arrived pickup unit 112, pipe tobacco had consistent and constant density.

As illustrated in fig. 1 and 2, decline pipeline 2 has box-like basically shape, comprises four vertical sidewalls, and one of them sidewall is limited by compaction apparatus 5, two borders that opening is respectively intake section 3 and exit portion 4 of end.

The fork 7 of compaction apparatus 5 stretches along the direction that extends substantially transversely to decline pipeline 2 bearing of trends, and promptly they protract along the direction of the vertical sidewall that extends substantially transversely to pipeline 2.

The vertical sidewall 6 that fork 7 extends from pipeline 2 is till they touch the opposing vertical sidewall and cover the whole volume of pipeline 2.

Like this, all pipe tobaccos 200 that enter decline pipeline 2 just guarantee to be pitched 7 interceptings.

Move along pipeline 2 in order to ensure fork 7, specifically, move along its bearing of trend, compaction apparatus 5 also comprises mobile device 8.

As mentioned above, described mobile device 8 preferably limits the whole vertical wall 6 of pipeline 2.

In this preferred embodiment of the present invention, mobile device 8 comprises a belt 9 or some belts that is arranged side by side each other 9, and belt 9 is reeled around belt pulley 10.

Belt 9 extends between the intake section 3 of pipeline 2 and exit portion 4, limits vertical wall 6 thus.

Fork 7 is attached to belt 9 and extends transverse to belt, and promptly they extend belt and away from belt along the direction that is substantially perpendicular to belt 9 self-supporting faces.

Advantageously, fork 7 is easily curved, thereby when reaching the maximum load of setting, fork 7 becomes and belt 9 concordant (line with), thereby transverse to the bearing of trend work of pitching 7.

In other words, fork 7 can be crooked under the effect of setting load, thereby become concordant with the bearing-surface of belt 9.

This feature can be guaranteed double action.

In fact, should be emphasized that, in use, fork 7 intercepting pipe tobaccos 200 (sheet form that more or less interweaves with the efficient according to carding roller 109 arrives), pipe tobacco 200 arrives the intake section 3 of pipeline 2, the pipe tobacco that fork 7 is intercepted towards exit portion 4 pullings of pipeline 2.

The action of fork 7 is little by little gathered pipe tobacco and is compressed on the bottom of pipeline 2, so that picked device 112 is collected.

When setting load and act on the fork 7, near existing resistance for pipe tobacco the exit portion 4 of pipeline is pitched 7 and is stepped down and become concordantly with belt 9, and the pipe tobacco that is transferred with release also interrupts aforesaid compaction actions.

Therefore, decided by near the density that has pipe tobacco exit portion 4, when reaching the setting load, fork 7 is stepped down, and sets at utmost thereby guarantee pipe tobacco to be compacted to by density.

And fork 7 rotates around belt pulley 10, and belt 9 is wound on this belt pulley 10.Therefore, in case arrive exit portion 4, described fork 7 rotates around belt pulley 10, exposes from pipeline 2 with the return path of beginning towards intake section 3.

This return path be parallel to fork 7 in pipeline 2 from intake section 3 to exit portion 4 descent path, and be arranged on fully outside the decline pipeline 2.In this case because fork 7 is easily curved, guarantee to pitch 7 the exit portion 4 of pipeline 2 near in the belt pulley rotating process, described fork 7 can not be transported to pipe tobacco outside the pipeline 2, this means that pipe tobacco can not scatter and so be wasted.

In fact, as mentioned above, easily curved fork 7 is thrown off with the pipe tobacco that has been transferred that accumulates in the exit portion 4.

Use two kinds of optional solutions to realize pitching 7 mutabililty.

In solution at first, fork 7 usefulness flexible materials are made, and are fixed firmly to belt 9 then.

In this embodiment, the load on the fork 7 makes their bendings, and the result becomes concordant with belt 9.

Be used for making the elasticity of material of fork 7 and the desired density that mutabililty therefore depends on pipe tobacco.

At second kind optionally or among the embodiment of coexistence, fork 7 usefulness rigid materials are made, and are fixed to belt 9 in the mode of flexibility, for example use torsionspring.

In this solution, set the rigidity of torsionspring according to required tobacco density.

Under any circumstance and be independent of the embodiment of the mutabililty of determining fork 7, allocation units 1 will comprise that being used for generation can cause the device 11 of the above-mentioned maximum load of fork 7 bendings.

These devices 11 are guaranteed to pitch 7 and are independent of and arrive near the existing setting tobacco densities exit portion 4 and bending prevents that thus aforesaid pipe tobacco from scattering, and dependently to align also be like this with pitching 9 even pitch 7.

An example of this device 11 is nails, and these nails are incorporated in the pipeline 2, and are positioned near the exit portion 4.

These nail intercepting forks 7, and cause that they are crooked and concordant with belt 9, rotate around belt pulley near exit portion 4 thereby guarantee to pitch 7, align with belt 9 basically.

Allocation units 1 also comprise sensor 12, and these sensors 12 are pipeline 2 inboard work to detect the pipe tobacco amount in the pipeline self.

Sensor 12 may be operably coupled to the processing unit (not shown), the motor (not shown) that this processing unit control is worked to belt 9.

Motor is according to changed the velocity of rotation of belt 9 around belt pulley 10 by sensor 12 detected pipe tobacco amounts.

Specifically, in case sensor 12 detects the quantity not sufficient of pipe tobacco in the pipeline 2, motor just will increase the velocity of rotation of belt 9 around belt pulley 10.

This cause pitching 7 from intake section 3 to exit portion 4 speed increases, increase the pipe tobacco amount that is conveyed in the pipeline 2 thus.

On the other hand, if sensor 12 detects too many pipe tobacco is arranged in the pipeline 2, motor just reduces the velocity of rotation of belt 9 around belt pulley 10.

This cause pitching 7 from intake section 3 to exit portion 4 speed reduces, reduce to be conveyed into the pipe tobacco amount in the pipeline 2 thus.

Claims

1. a tobacco shred distribution unit comprises decline pipeline (2), and described down-comer stage property is useful on the intake section (3) and the exit portion (4) of described pipe tobacco (200); Described intake section (3) is positioned near the carding roller (109) of cigarette manufacturing machine accepting pipe tobacco, and described exit portion (4) is positioned near the pickup unit (112) of described cigarette manufacturing machine to discharge pipe tobacco; It is characterized in that, described tobacco shred distribution unit comprises compaction apparatus (5), described compaction apparatus is along the work of the vertical wall (6) of described decline pipeline (2), intercepting the described pipe tobacco (200) in the described decline pipeline (2), and pinches described pipe tobacco towards described exit portion (4).

2. unit as claimed in claim 1 is characterized in that, described compaction apparatus (5) comprises one group of fork (7), and described fork is worked in described decline pipeline (2), and moves to described exit portion (4) from described intake section (3).

3. unit as claimed in claim 2, it is characterized in that described fork (7) is with mobile to the described exit portion (4) of described pipeline (2) from the described intake section (3) of described pipeline (2) along the speed of described pipeline (2) free-falling speed greater than described pipe tobacco (200).

4. as claim 2 or 3 described unit, it is characterized in that, described fork (7) is along the direction of the bearing of trend that extends substantially transversely to described decline pipeline (2), is stretched over basically and described vertical wall (6) opposing vertical wall from the vertical wall (6) of described pipeline (2).

5. as each described unit in the claim 2 to 4, it is characterized in that described compaction apparatus (5) comprises and is used for driving along described decline pipeline (2) mobile device (8) of described fork (7); Described mobile device (8) limits the vertical wall (6) of described pipeline (2) at least in part.

6. unit as claimed in claim 5 is characterized in that, described mobile device (8) comprises at least one belt (9) of reeling around belt pulley (10); Described belt (9) limits the vertical wall (6) of described pipeline (2) at least in part.

7. unit as claimed in claim 6 is characterized in that, described fork (7) is attached to described belt (9) and laterally extends from described belt (9); Described fork (7) is easily curved, thereby during the setting maximum load on reaching the bearing of trend that laterally acts on described fork (7), becomes concordant with described belt (9).

8. unit as claimed in claim 7 is characterized in that, the device (11) that is used for producing described maximum load is set near the described exit portion (4) of described pipeline (2).

9. as each described unit in the claim 5 to 9, it is characterized in that, have sensor (12), described sensor is worked in described decline pipeline (2) to detect the amount of the pipe tobacco (200) in the described pipeline (2); Motor may be operably coupled to described sensor (12), thereby increases or reduce the speed of described belt (9) according to the amount of the pipe tobacco (200) in the described pipeline (2).

10. unit as claimed in claim 6 is characterized in that, described belt pulley (10) is arranged near the described intake section (3) and described exit portion (4) of described pipeline (2); Be wound on described belt (9) on the belt pulley (10) and fully limit the vertical wall (6) of described pipeline (2).

11. unit as claimed in claim 6 is characterized in that, one group of belt (9) is provided with each other abreast, and reels around same belt wheel (10).