CN100399954C

CN100399954C - A tobacco feed and transport unit in a machine for manufacturing tobacco products

Info

Publication number: CN100399954C
Application number: CNB2004100956793A
Authority: CN
Inventors: F·德拉盖笛
Original assignee: Jidi Co
Current assignee: Jidi Co; GD SpA
Priority date: 2003-11-21
Filing date: 2004-11-19
Publication date: 2008-07-09
Anticipated expiration: 2024-11-19
Also published as: EP1532880B1; RU2346631C2; RU2004134663A; JP2005151987A; ATE361003T1; EP1532880A1; DE602004006215T2; ITBO20030703A1; CN1618357A; DE602004006215D1; US20050109354A1

Abstract

Shredded tobacco is fed into and transported through a cigarette maker (1) by a unit (2) that will include at least one transport roller (27), driven in rotation about a longitudinal axis (27a) and equipped with a plurality of radial pins (28) projecting radially from a peripheral surface (29), by which the flow of tobacco (9) is taken up and directed along a predetermined feed path toward a unit (25) that forms it ultimately into at least one continuous stream (26); the feed and transport unit (2) is also equipped with at least one sensing device (30), offered to the peripheral surface (29) of the roller (27) and serving to detect any points where pins (28) may be missing or damaged.

Description

Be used for making the tobacco feeding and the transfer unit of the machine of tobacco product

Technical field

The present invention relates to be used for make the tobacco feeding and the transfer unit of the machine of tobacco product.

Background technology

Prior art comprises the cigarette-making machine that is equipped with a feeding and transfer member, and these parts comprise a feeding chamber, is obtained tobacco chopped and transmit from this chamber by a comb unit to enter a decline pipeline or a groove.In the bottom of this groove, there is the inlet assembly of tooth to obtain tobacco and it is placed on the conveyer belt by one, this conveyer belt transmits its lower inlet end towards an increase in pipeline or vertical tube.The top of vertical tube is consistent with the output of tobacco feeding and transfer unit, and sealed by a conveyer of the absorbing gas belt of the Tou Guoed air of a ring, this absorbing gas belt will be drawn tobacco, and tobacco just rises by vertical tube as the Continuous Flow of a special particulate, and little by little form a Continuous Flow.

At the outside flow of tobacco that so forms of vertical tube by air-breathing band towards a chopper assembly apparatus or the guiding of arrangement station, the function of this station be flow of tobacco is contracted to regulation with the uniform cross-sectional area size.Discharge the entry position that the flow of tobacco that is organized arrives a station that forms a continuous cigarette rods by this absorbing gas belt then.

Comb unit is generally a comber cylinder, and the surface of revolution of this cylinder has many nails that are used as the tobacco that obtains and pick up chopping.

In addition, the output precision that tooth is arranged in the lower end of groove comprises that another carding roller and promotes roller, and this two rollers tool one has the surface that nail is arranged of rotation.

At last, in fact also use another roller, it structurally is similar to those above-mentioned rollers, as transmitting the device of tobacco by feeding and transfer unit.

Interaction between nail and the tight agglomerate of tobacco can cause the local fracture of nail, perhaps in addition they and roller break away from fully.Any disconnected broken or whole nail that separates with roller can enter in the agglomerate of tobacco, must remove them by the step that the skilled person was familiar with for this field then.

Compared and will be a lower grade with the tobacco character of being carried by the roller that has whole complete nails by the tobacco character that the roller that has the nail of losing or damage transmits, this will influence the quality of final cigarette.

For the tobacco feeding of discerning traditional embodiment and the possible damage of the roller in the transfer unit, must the teardown of engine and use the eye test nail singly, find out the position of any nail that may rupture or lose.Cigarette manufacturing machine must keep dallying and checks a period that prolongs subsequently, therefore just causes production loss.

Summary of the invention

The tobacco feeding and the transfer unit that the purpose of this invention is to provide a machine that is used for making tobacco product, and these parts will not be subjected to the influence of above-mentioned shortcoming.

A purpose of the present invention especially provides a kind of tobacco feeding and induction system that will allow promptly and easily to find out the position of combing nail damage or that lose.

In order suitably to reach described purpose, the invention provides a kind of tobacco feeding and transfer unit that is used for making the machine of tobacco product, it comprises and is configured at least one conveying roller of rotating around separately a longitudinal axis, many nails that this roller has on the circumferential surface that is positioned at its rotation and is orientated by the direction of radially leaving longitudinal axis, thereby can obtain tobacco and make tobacco advance to a unit along a predetermined path, make tobacco form a Continuous Flow by this unit, wherein, it is equipped with and is used to discern the existence of these nails and/or at least one checkout gear of integrality, nail is formed by ferromagnetic material, and this at least one checkout gear comprises and being placed in very close to nail, can detect at least one inductive pick-up of the variation in magnetic field.

Description of drawings

Below by means of accompanying drawing, be described in detail the present invention, in the accompanying drawings with way of example:

Fig. 1 shows the biopsy cavity marker devices schematic perspective view of the part of a cigarette-making machine, and it comprises according to tobacco feeding of the present invention and transfer unit;

Fig. 2 is the stereogram of a details of these parts in the presentation graphs 1;

Fig. 3 is the amplification longitudinal sectional view of presentation graphs 2 details.

The specific embodiment

With reference to Fig. 1, it shows a feeding part of a cigarette-making machine, and this feeding part is overall to be represented and comprise that being used to transmit the tobacco that a large amount of tobaccos chopped enter a Continuous Flow of tobacco particles feeds and transfer unit 2 with 1.

The member of feeding and transfer unit 2 is installed in the vertically extending housing 3, and this housing the top is all formed by two

vertical walls

5,6 by a horizontal wall 4 with in both sides.

Feeding part 1 has from horizontal wall 4 upwardly extending inlet ducts 7, and below this pipeline, the inside of housing 3 has one powerdriven discaling roll 8 to be arranged, have discaling roll that the tobacco 9 of chopping is transmitted, enters a lower chambers 10 downwards by this, this chamber is delimited by a conveyer belt 11 in the bottom.

Chamber 10 is installed in around laterally 5 and 6 rotating comber cylinder of an axis 12a or roller 12 to the two side, and this cylinder has formed the part of comb unit 13 and occupied near the position with 11 downstream.

Except carding roller 12, unit 13 also comprises and is configured to the dosage roller 14 tangent basically and that rotate with equidirectional with carding roller 12.

By this structure, the tobacco 9 of chopping is had discaling roll 8 guiding being with on 11, be transferred into carding roller 12 then, its thickness tobacco 9 of one deck chopping of being substantially equal to the radial dimension of combing tooth is transmitted by roller 12 and leaves chamber 10 and surpass position with tangent it of dosage roller 14 subsequently.

What also be associated with comb unit 13 is to advance roller 15 around the axis of the axis 12a that is parallel to carding roller 12 rotating, its function is to strip this layer of tobacco 9 and this composition particulate is descended with direction F1 from this same roller 12 to enter in vertical substantially the decline pipeline or groove 16, and this pipeline is by being parallel to each other and delimiting with a pair of

transverse wall

17 and 18 that the axis 12a of carding roller 12 extends in parallel.

The lower end of groove 16 is oriented to the periphery of accepting assembly 19 in the face of one, and this assembly comprises that accepting roller 20 and advances roller 21, and this accepts the effect that roller plays a combing or pick-up roller, and this propellings roller and accept roller 20 combinations leaves groove 16 with tobacco 9 transmission that will chopping.

Accept the axis 20a rotation of roller 20 around the axis 12a that is parallel to carding roller 12, and be designed to and the tobacco 9 that is the special particles shape can be thrown on a conveyer belt 22, the moving from right to left and being inclined upwardly as seen in Figure 1 of this conveyer belt, and projecting end is positioned under the inlet of an increase in pipeline or VERTICAL TUBE 23.

The top exit end 24 of VERTICAL TUBE 23 links to each other with a unit 25, forms at least one Continuous Flow 26 of tobacco 9 by this unit, is perhaps having as in the example of Fig. 1 in the situation of two tobacco rod processing lines, and unit 25 forms two such Continuous Flow 26.

The Continuous Flow 26 of tobacco 9 is advanced towards a decorative components (not shown), and this assembly is formed a continuous cigarette rods with this Continuous Flow.

All above-mentioned

rollers

8,12,14,15,20 that are used to feed with carrying tobacco 9 of parts 2 all have identical architectural feature with 21.Hereinafter

central roll

8,12,14,15,20 and each root roller of 21 on attribute, be called a conveying roller 27 and be illustrated in Fig. 2 and 3 in, roller 27 is rotatable and have many nails 28 that occupy circumferential surface 29 around a relevant longitudinal axis 27a.

Nail 28 is oriented as the longitudinal axis 27a that radially leaves roller 27, can obtain tobacco 9 and can be formed the Continuous Flow of tobacco 9 by unit 25 along 25 projected routes of extending transmit tobacco 9 towards the unit from inlet duct 7 to form.

Though

roller

8,12,14,15,20 and 21 structurally is similar in an example shown, but the tobacco particles that is transmitted is can be different aspect size, thus therefore according to along projected route each stage handled tobacco type and state select to follow closely 28 axial and circumferential spacing, and select their density.

For favourable, feeding and transfer unit 2 comprise also that being used to of being associated with at least one conveying roller 27 of parts 2 discerned and follow closely 28 existence and/or at least one checkout gear 30 of integrality.

Preferably, every roller in the roller shown in Fig. 18,12,14,15,20 and 21 is equipped with separately a checkout gear 30 of the integrality of the nail 28 that is used to discern separately.In order to clearly show that the structure of parts 2, Fig. 1 show such checkout gear 30 of being associated with the cylinder or the roller 12 of comb unit 13 and with accept another device 30 that roller 20 is associated.

Nail 28 is formed by ferromagnetic material in a conventional manner, and in a preferred embodiment, checkout gear 30 will comprise at least one inductive pick-up 31.Can detect the magnetic field that produced by identical nail 28 and detect losing or any variation of the magnetic field intensity aspect that causes of rupturing near the inductive pick-ups 31 of nail 28 location owing to one or more nails.

Consult Fig. 2 and 3, this two illustrates general conveying roller 27, and device 30 comprises at least one detecting unit 32, and this unit has is arranged to one and be close to many sensors 31 of arranging and being positioned to face the nail 28 of roller 27 against another.Detecting unit 32 occupies a fixed position, and nail 28 will move under sensor 31 when being positioned at roller 27 and rotating.

Under the situation of a roller 27 of quite growing, device 30 will be combined with being close to of side at another of longitudinal size that is configured to along roller 27 and arrange a plurality of detecting units 32 that also preferably stagger at circumferencial direction, as shown in Figure 2.

Each detecting unit 32 extends around the circumference of respective rollers 27 partly.

Nail 28 is configured to many row 28a usually, and every row passes through around the circumference of roller 27.Many row 28a of nail 28 come another row's other arrangement again along the axis 27a one of roller 27.

Advantageously, in order to discern the perhaps many nails 28 of nail damage or that lose exactly, each sensor 31 that belongs to a certain detecting unit 32 just is placed on the corresponding circumferential row 28a, so that the sensitivity maximum in the magnetic field that it is produced for described row's nail 28.

And, in order to guarantee to isolate with the sensor 31 of monitoring one adjacent row 28a by the caused magnetic field of a row 28a of nail 28, surface 33 towards nail 28 detecting unit 32 will have many grooves 34, for each sensor 31 groove is arranged, the not end that the nail 28 of respective row 28a is had during the rotation of roller 27 can freely insert in this groove.

Can be at one of device 30 for transferring in the pattern of selecting for use (not being shown specifically), many sensors 31 of an individual unit 32 are aligned to the many row of the axis 27a that is parallel to respective rollers 27 and the many row that extend transverse to axis 27a.Each biographies sensor 28 is consistent with an associated recesses 34, and a corresponding circumferential row 28a of nail 28 can freely be inserted in this groove during this roller rotates.

Sensor 31 is connected in the processing unit (not shown) in the master controller that for example is combined in cigarette-making machine.The signal that the monitoring of described processing unit is accepted from sensor has the situation of interruption detecting continuous signal, sends an alarm output signal, and this signal also will guide feeding and transfer unit 2 automatically to shut down and indicate to lose or damage the position of following closely.

The nail 28 that lose or that damage that so only also needs the operator to change to have been gone out by machine recognition does not need to seek the nail of losing or damage by a large amount of nail that roller 27 is had.

Because can detect the fracture of nail and the nail that damage and that lose of transposing promptly and downtime in real time only is to carry out the required time of transposing; so in according to parts of the present invention, just can be implemented in the described purpose of beginning of this paper, and suitably solve the problem that is associated with prior art.

Obviously, preferably for whole roller installation and measuring devices 30 of this machine, the occasion that is restricted at funds is at least to having those roller installation and measuring devices than elongated nail.

Claims

1. a tobacco feeding and transfer unit that is used for making the machine of tobacco product, it comprises and is configured at least one conveying roller (27) of rotating around separately a longitudinal axis (27a), many nails (28) that this roller has that a circumferential surface (29) that is positioned at its rotation is gone up and is orientated by the direction of radially leaving longitudinal axis (27a), thereby can obtain tobacco (9) and make tobacco advance to a unit (25) along a predetermined path, make tobacco form a Continuous Flow (26) by this unit, it is characterized in that:

It is equipped with and is used to discern the existence of these nails (28) and/or at least one checkout gear (30) of integrality, nail (28) is formed by ferromagnetic material, and this at least one checkout gear (30) comprises and being placed in very close to following closely (28), can detecting at least one inductive pick-up (31) of the variation in magnetic field.

2. as the parts in the claim 1, it is characterized in that: checkout gear (30) comprises at least one detecting unit (32), and this unit has the many sensors (31) that are configured to a tight arrangement in the side at and face the nail (28) of at least one roller (27).

3. as the parts in claim 2, it is characterized in that: at least one detecting unit (32) occupies a fixed position, and moves under sensor (31) at nail (28) during the rotation of at least one roller (27).

4. as the parts in claim 2, it is characterized in that: at least one detecting unit (32) extends around at least one roller (27) partly.

5. as the parts in claim 2, it is characterized in that: nail (28) is set to many single rows (28a), each row extends and many rows arrange along side at another of axis (27a) of same roller around the circumference of roller (27), and each sensor (31) of at least one detecting unit (32) is positioned at one of nail (28) and arranges on (28a).

6. as the parts in claim 2, it is characterized in that: at least one detecting unit (32) has the surface (33) pointing to nail (28) and be processed with many grooves (34), and each circumferential row (28a) of nail (28) is moved in a corresponding grooves (34) when being in rotation.

7. as the parts in the claim 2, it is characterized in that: comprise many described detecting units (32) of longitudinal size that are configured to along at least one roller (27) on another side.

8. the parts as in claim 7 is characterized in that: along be staggered all individual units of many detecting units (32) of the circumferential size of at least one roller (27).