JP2004049167A - Apparatus for receiving filter rod of cigarette - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for receiving a filter rod of a cigarette preventing the adhesion of paste stain to essentially eliminate the cleaning work. <P>SOLUTION: The apparatus for receiving a filter rod of a cigarette contains a pair of upper and lower braking belts 16 to receive the filter rod FR delivered from an opening of a pneumatic transfer pipe 4 at a high speed and brake the motion of the filter rod FR and a pair of upper and lower acceleration rollers 30 accelerating the filter rod FR delivered from the breaking belts 16 toward a direction changing section. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a cigarette filter rod receiving device incorporated in a filter cigarette manufacturing facility.
[0002]
[Prior art]
The filter cigarette is manufactured with a so-called filter attachment. In this filter attachment, first, a filter plug is interposed between two cigarettes, and these are connected to each other by winding a tip paper piece to form a double filter cigarette. Molded into Thereafter, the double filter cigarette is cut equally from the center of the filter plug into individual filter cigarettes.
[0003]
More specifically, the filter attachment receives a supply of cigarette rods from a cigarette manufacturing machine, a so-called hoisting machine, receives a supply of filter rods in its hopper, and cuts the cigarette rods equally in the filter attachment. Then, two cigarettes are formed, and the filter rod is also sent out from the hopper, and then cut at predetermined lengths to form individual filter plugs.
[0004]
Since the filter rod in the hopper is gradually consumed during the operation of the filter attachment, it is necessary to replenish the filter rod in the hopper when the remaining amount in the hopper falls below a predetermined level.
[0005]
For this purpose, the hopper of the filter attachment is connected to a filter rod feeder via a filter rod air supply system, and an example of the air supply system is disclosed in, for example, Japanese Patent Publication No. 1-57951. This known air supply system includes an air supply pipe extending from a filter rod feeder to a hopper of a filter attachment, and a receiving device connecting between the air supply pipe and the hopper. And a braking section for applying a braking force to the filter rod delivered from the open end of the air duct.
[0006]
More specifically, the braking section has a transport trough for guiding the delivery of the filter rod, and an endless braking belt disposed immediately above the transport trough, and the filter rod delivered from the air pipe is transported by the transport trough. Is braked by being pinched between the brake belt and the brake belt, and is transported in a decelerated state as the brake belt travels.
[0007]
Thereafter, the decelerated filter rod is accelerated from the braking section toward the direction changing section as it passes through a pair of acceleration rollers, and the direction changing section changes the delivery direction of the filter rod from its axial direction to the side direction, It is supplied to the hopper of the filter attachment.
[0008]
If the receiving device is provided with the braking section as described above, the high-speed filter rod which is blown from the filter rod feeder through the air supply pipe is stably received, and the pair of the acceleration roller and the direction changing section are provided. Can be supplied to the hopper in a regular manner.
[0009]
[Problems to be solved by the invention]
In recent years, since filter cigarettes with a light taste have been in great demand, porous filter paper has been adopted for the filter plug, that is, the filter rod, and a wrapping material for wrapping the filter material has been adopted, and the filter rod has high air permeability.
[0010]
When such a porous molded paper is used, an adhesive (hot melt) used for connection between the molded paper and the filter material and for adhesion of the wrap portion of the molded paper when forming the filter rod. That is, there is a possibility that the rail glue or the wrap glue leaks out to the outer peripheral surface of the filter rod through the fine holes of the molded paper.
[0011]
Therefore, when the filter rod receives a large braking force in the braking section of the receiving device, the braking force causes the adhesive to seep out to the outer peripheral surface of the filter rod. The exudation of the adhesive adheres as scaling to the sliding guide surface of the transport trough, which is a fixed guide, and becomes a major factor in clogging of the filter rod in the receiving device.
For this reason, the transport trough of the braking section needs to be periodically cleaned to remove the scale, which lowers the operating efficiency of the receiving device.
[0012]
In addition, if the scale adhered to the transport trough peels off and is carried along with the filter rod, the scale will adhere to the rolling section of the filter rod guide rail and the tip paper piece in the filter attachment, so-called rolling section. This not only causes trouble but also causes the filter cigarette to get caught in the filter cigarette itself.
[0013]
The present invention has been made based on the above-described circumstances, and an object of the present invention is to prevent the adhesion of scale to the braking section, and to prevent a decrease in the operation rate and a manufacturing trouble due to the scale. An object of the present invention is to provide a cigarette filter rod receiving device.
[0014]
[Means for Solving the Problems]
In order to achieve the above object, a cigarette filter rod receiving device according to the present invention (claim 1) is provided along a delivery path extending from an open end of a blower tube, and is provided from the blower tube. And a pair of acceleration rollers provided downstream of the braking section in the delivery path and forming an acceleration path for accelerating the filter rod when passing the braked filter rod, and at the end of the delivery path. And a direction changing section for receiving the accelerated filter rod, changing the delivery direction of the filter rod in a direction orthogonal to the delivery path, and sending the filter rod into the hopper, and the braking section includes a delivery path. The filter rods are cooperated with each other to clamp the filter rod, and the clamped filter rod is decelerated to accelerate the pair of filter rods. It has a pair of endless braking belt for transporting toward the over la.
[0015]
According to the above-described receiving device, the filter rods sent out from the air supply pipe are braked by being sandwiched between a pair of endless braking belts, both of which are movable members. , Are transferred to a pair of acceleration rollers.
[0016]
Preferably, the braking section is rotatably disposed with the delivery path interposed between the open end of the air supply tube and the pair of endless braking belts, and when the filter rod comes out of the air supply tube, the pair of endless shapes is provided. It can further include a pair of holding rollers that cooperate with the brake belt and enable the filter rod to be held at two front and rear positions.
[0017]
When the rear end of the filter rod comes out of the open end of the air duct, the filter rod is held by the pair of endless braking belts and the pair of holding rollers, thereby suppressing the deflection of the rear end of the filter rod. Is done.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 schematically shows a wind system for a filter rod for cigarettes, the wind system comprising a wind tube 4 extending from a filter rod feeder 2, which is connected to a receiving device 6. The receiving device 6 is connected via a diverting section 8 to a hopper 10 of the filter attachment.
[0019]
The filter rod feeder 2 takes out the filter rod from the hopper 12 via upper and lower two-stage grooved drums (not shown), and when the lower grooved drum communicates with the air supply pipe 4, the groove is formed. When the compressed air is supplied to the filter, the filter rod in the groove is ejected into the air supply pipe 4, whereby the filter rod passes through the air supply pipe 4 together with the airflow and intermittently flows toward the receiving device 6. Sent.
[0020]
Here, as shown in FIG. 2, the filter rod FR is obtained by wrapping a filter material F made of an acetate fiber bundle with a porous molded paper P, and both side edges of the molded paper P are overlapped with each other to form a hot rod. A wrap portion L bonded through a wrap paste made of melt is formed. Further, the gap between the filter material F and the molded paper P is bonded via a rail glue made of hot melt at a portion X which is diametrically separated from the wrapped portion L. The escape of F is prevented.
[0021]
As shown in FIG. 3, the receiving device 6 includes a braking section 14, which is disposed in front of the open end of the air duct 4. The braking section 14 has a pair of endless braking belts 16, which sandwich the delivery path of the filter rod FR and extend along the delivery path. Note that the delivery path is defined in a horizontal plane extending from the open end of the wind pipe 4.
[0022]
An interval slightly smaller than the diameter of the filter rod FR is secured between the upper and lower braking belts 16, so that the upper and lower braking belts 14 define a horizontal braking path for the filter rod FR in the delivery path. .
[0023]
More specifically, each braking belt 16 is formed of a rubber belt having a V-shaped cross section, and is wound around the end pulleys 18 and 20. When rotational power is input to one of the end pulleys 18 and 20, the brake belt 16 travels from the end pulley 18 to the end pulley 20 at the forward belt portion on the side close to the delivery path. Further, an intermediate pulley 22 is disposed between the end pulleys 18 and 20, and the intermediate pulley 22 guides the traveling of the brake belt 16. In addition, as is clear from FIG. 3, the diameters of the end pulley 18, the intermediate pulley 22, and the end pulley 20 are increased in this order.
[0024]
Further, scrapers 24 are slidably contacted with the respective brake belts 14, and these scrapers 24 clean the corresponding brake belt surfaces of the brake belts 16.
The distance between the open end of the ventilation pipe 4 and the braking section 14 is shorter than the length of the filter rod FR, and a pair of holding rollers 26 are rotatably arranged between the open end and the braking section 14. The nipping rollers 26 are vertically separated from each other across the delivery path, and a circumferential groove having a V-shaped cross section is formed on the peripheral surface of each of the nipping rollers 26. Therefore, the upper and lower nipping rollers 26 allow the passage of the filter rod FR between the circumferential grooves, and define a nipping passage for nipping the filter rod FR in the delivery path.
[0025]
Further, as shown in FIG. 4, an inner diameter of the open end portion of the air pipe 4 is formed as an enlarged diameter portion 28 whose inner diameter is enlarged.
A pair of acceleration rollers 30 are rotatably arranged in front of the braking section 14, and these acceleration rollers 30 are also vertically separated from each other across the delivery path. The upper and lower acceleration rollers 30 also have a peripheral groove having a V-shaped cross section on the peripheral surface thereof. These acceleration rollers 30 allow the passage of the filter rod FR between the peripheral grooves, and An acceleration path for accelerating the filter rod FR is defined in the delivery path.
[0026]
More specifically, the upper and lower acceleration rollers 30 receive rotation power and rotate in opposite directions, and their peripheral speeds are set to be faster than the traveling speeds of the respective braking belts 16. In addition, scrapers 32 are slidably contacted with the circumferential grooves of the respective acceleration rollers 30, and these scrapers 32 clean the corresponding circumferential grooves of the acceleration roller 30.
[0027]
The distance between the acceleration path of the upper and lower acceleration rollers 30 and the braking path of the braking section 14 is equal to or slightly longer than the length of the filter rod FR, and the distance between these upper and lower acceleration rollers 30 and the braking section 14 is A pair of guide rollers 32 and 34 are rotatably arranged. Each of the pair of guide rollers 34, 36 also has a peripheral groove having a V-shaped cross section on its peripheral surface, and defines a guide support passage for the filter rod FR in the delivery path.
Referring to FIG. 5, power transmission paths for transmitting rotational power to the braking section 14 and the pair of acceleration rollers 30 are shown.
[0028]
First, a roller shaft 38 extends from each acceleration roller 30, and the roller shaft 38 is rotatably supported by a frame 42 via a bearing unit 40. A gear 44 is attached to the tip of the roller shaft 38, and the gears 44 of the upper and lower acceleration rollers 30 mesh with each other. Further, as shown in FIG. 5, the gear 44 of the upper acceleration roller 30 constitutes a two-stage gear in which another gear 46 is integrally provided, and the gear 46 is engaged with a drive gear 48. . The drive gear 48 is attached to the output shaft 52 of the electric motor 50. Therefore, when the electric motor 50 is driven, rotational power is transmitted from the electric motor 50 to the upper and lower acceleration rollers 30 via the gear train described above, and the acceleration rollers 30 rotate in opposite directions.
[0029]
In the braking section 14, a pulley shaft 54 extends from the end pulley 20 of the upper braking belt 16, and the pulley shaft 54 is rotatably supported by the frame 42 via a bearing unit 56. A gear 58 is attached to the tip of the pulley shaft 54, and the gear 58 meshes with a drive gear 60. The drive gear 60 is attached to an output shaft 64 of the electric motor 62.
[0030]
The end pulley 18 and the intermediate pulley 22 of the upper braking belt 16 are rotatably supported by pulley shafts 66 and 68 via bearings, and the pulley shafts 66 and 68 are supported by a support arm 70. The support arm 70 is fixed to the frame 42.
[0031]
Therefore, when the electric motor 62 is driven, rotational power is supplied from the electric motor 62 to the end pulley 20 via the gear train described above, whereby the end pulley 20 is rotated in one direction. That is, in the upper brake belt 16, the end pulley 20 becomes a drive pulley, and the brake belt 16 travels in one direction with its rotation.
[0032]
On the other hand, in the lower brake belt 16, the end pulley 18 is a drive pulley, and as shown by a two-dot chain line in FIG. 5, a pulley shaft 72 of the end pulley 18 is a bearing unit (not shown). ) Is rotatably supported on the frame 42 side, and a gear pulley 74 at the end thereof is connected to a gear pulley 78 via an endless gear belt 76. The gear pulley 78 is attached to an output shaft of an electric motor 80, and the electric motor 80 is supported on the frame 42 via a bracket 82 as shown in FIG. A timing pulley 84 for guiding the gear belt 76 is also rotatably supported by the bracket 82.
[0033]
The intermediate pulley 22 and the end pulley 20 of the lower braking belt 16 are rotatably supported by their pulley shafts via bearings, and these pulley shafts are attached to a frame 42.
[0034]
Therefore, when the electric motor 80 is driven, rotational power is transmitted from the electric motor 80 to the end pulley 18 via the gear belt 76 and the gear pulley 74, whereby the lower braking belt 16 also travels in one direction.
When the upper and lower brake belts 16 are driven by the separate electric motors 80 as described above, it is also possible to impart a difference between the running speeds of these brake belts 16.
[0035]
When the upper and lower brake belts 16 run at the same running speed, the end pulleys 20 of the lower brake belt 16 are used as drive pulleys as in the case of the upper brake belt 16, and the pulleys of the upper and lower end pulleys 20 are used. The shafts may be connected via gears that mesh with each other. With this configuration, the upper and lower braking belts 16 can be run only by the electric motor 62.
[0036]
When the upper and lower brake belts 16 run at the same running speed, and the pair of acceleration rollers 30 rotate at a peripheral speed higher than the running speed of the brake belt 16, When the filter rod FR is sent out at a high speed, the filter rod FR first passes between the pair of nipping rollers 26 and then enters between the upper and lower braking belts 16. The filter rod FR that has entered in this manner is sandwiched between the upper and lower brake belts 16, and as a result, receiving the braking force from these brake belts 16, the speed is reduced to the traveling speed of the brake belt 16. Thereafter, the filter rod FR is transported toward the pair of acceleration rollers 30 as the upper and lower brake belts 16 travel.
[0037]
Here, as schematically shown in FIG. 6, the outer peripheral surface of the filter rod FR only comes into line contact with the braking belt surface of the braking belt 16 only at the two upper and lower locations. Since the sliding area of the filter rod FR with respect to the brake belt 16 is small, and the upper and lower brake belts 16 are both running, the sliding resistance received by the filter rod FR is greatly reduced.
[0038]
Therefore, as described above, even if the forming paper P of the filter rod FR is porous and the wrap glue or the rail glue may seep out to the outer peripheral surface of the filter rod FR, the outer peripheral surface of the filter rod FR may be removed. Adhesion of scale to the upper and lower brake belts 16 can be almost eliminated without the adhesive oozing out.
[0039]
When the filter rod FR comes out of the open end of the air pipe 4, the filter rod FR is sandwiched between the upper and lower brake belts 16 and between the pair of sandwiching rollers 26. Is accurately positioned on the delivery path, and does not generate runout at the rear end of the filter rod FR. Therefore, the rear end of the filter rod FR does not rub against the opening end of the air pipe 4, so that the adhesive does not seep out to the outer peripheral surface of the filter rod FR, and the opening of the air pipe 4 Adhesion of the scale to the edges is also prevented. In addition, since the open end of the air duct 4 is formed as a diameter-enlarging portion 28 whose inner peripheral surface is enlarged, the contact between the rear end of the filter rod FR and the air duct 4 is more reliable. Is prevented.
[0040]
Further, after the filter rod FR is braked, when the filter rod FR is sent from the brake section 14 toward the pair of acceleration rollers 30, the filter rod FR is moved between the pair of guide rollers 34 and between the pair of guide rollers 36. , Are sequentially supplied between the pair of acceleration rollers 30.
[0041]
When the front end of the filter rod FR reaches the pair of acceleration rollers 30 and is sandwiched between the acceleration rollers 30 as shown in FIG. 7, the pair of acceleration rollers 30 accelerates the filter rod FR and moves in the subsequent direction. It is sent out to the conversion section 8.
[0042]
Here, as described above, the distance between the acceleration path of the pair of acceleration rollers 30 and the braking path of the braking section 14 is equal to or slightly longer than the length of the filter rod FR. At the time when the filter rod FR is sandwiched between the acceleration rollers 30, the rear end of the filter rod FR is substantially in a state of being pulled out from between the upper and lower braking belts 16. Therefore, when the filter rod FR is accelerated by the pair of acceleration rollers 30, the rear end of the filter rod FR is not in contact with the upper and lower brake belts 16, so that the filter rod FR rubs against these brake belts 16. Without this, this point also greatly contributes to the prevention of the adhesion of scale to each brake belt 16.
[0043]
As a result, the scale does not adhere to the upper and lower braking belts 16 and the open ends of the air pipe 4, so that the cleaning operation for removing the scale is substantially unnecessary, and the operation rate of the receiving device 6 is reduced. It can be greatly improved.
[0044]
The filter rod FR that has passed through the pair of acceleration rollers 30 is supplied to a direction changing section 8 shown in FIG. 8, and the direction changing section 8 changes the sending direction of the filter rod FR in a direction orthogonal to the sending path, that is, of the filter rod FR. Transform the feed direction to its horizontal direction.
[0045]
Specifically, the direction changing section 8 includes a pair of direction changing rollers 86, which are arranged in front of the pair of acceleration rollers 30. The axis of each of the direction change rollers 86 extends over a predetermined length in the sending direction of the filter rod FR, and a direction change passage allowing passage of the filter rod FR is defined between the pair of direction change rollers 86. .
[0046]
The filter rod FR sent from the pair of acceleration rollers 30 is guided by the guide 88 to a direction change passage between the pair of direction change rollers 86, and the filter rod FR is changed direction by air blow ejected from the guide 88. At the same time as being pushed laterally into the passage, the pair of direction change rollers 86 rotate in opposite directions to pass through the direction change passage and enter between the pair of endless transfer belts 90. Then, as the transport belt 90 travels, the filter rod FR is supplied to the hopper 10 of the filter attachment.
[0047]
The filter rods FR in the hopper 10 are taken out one by one by a take-out drum 92 formed of a grooved drum, and are used for manufacturing filter cigarettes.
As described above, the scale is prevented from adhering to the pair of brake belts 16 of the brake section 14 and the open ends of the air supply pipes 4, so that the separated scale is carried together with the filter rod FR, and the inside of the filter attachment is removed. It does not adhere to other parts or get caught in the filter cigarette itself.
[0048]
The present invention is not limited to the above-described embodiment, and various modifications are possible. For example, the number of the braking belts 16 of the braking section 14 is not limited to two, and may be three. In this case, the braking belt 16 can be disposed so as to surround the periphery of the filter rod FR.
[0049]
【The invention's effect】
As described above, according to the cigarette filter rod receiving device of the present invention (claim 1), since the braking section is constituted by a pair of endless braking belts, the filter sent at high speed from the air duct is provided. When braking the rod with the pair of braking belts, the filter rod does not receive a large sliding resistance. As a result, at the time of braking, the glue used as the wrap glue or the rail glue does not exude on the outer peripheral surface of the filter rod. As a result, the adhesion of the scale in the braking section is prevented, so that the cleaning operation for removing the scale is substantially unnecessary, and the operation rate of the receiving device can be greatly improved.
[0050]
Further, since the adhesion of the scale is prevented, the peeled scale is carried to the subsequent process together with the filter rod, and does not adversely affect the manufacture of the filter cigarette.
[0051]
When a pair of pinching rollers are rotatably arranged between the open end of the blower tube and the braking section (claim 2), when the filter rod comes out of the blower tube, the delivery posture of the filter rod is stabilized. Also, the rear end of the filter rod does not rub the open end of the air pipe. Therefore, when the filter rod comes out, the glue does not seep to the outer peripheral surface of the filter rod, and the scale does not adhere to the open end of the air supply pipe.
[Brief description of the drawings]
FIG. 1 is a schematic view showing an air feeding system for a filter rod.
FIG. 2 is a perspective view of a filter rod.
FIG. 3 is a diagram showing a configuration of a receiving device in the air blowing system of FIG. 1;
FIG. 4 is a cross-sectional view showing an open end of an air duct.
FIG. 5 is a sectional view showing a power transmission path to a braking belt and an acceleration roller.
FIG. 6 is a diagram for explaining the operation of a pair of brake belts.
FIG. 7 is a side view showing a pair of acceleration rollers.
FIG. 8 is a schematic diagram showing a path from the direction changing section of FIG. 1 to a hopper.
[Explanation of symbols]
4 Blower tube 6 Receiving device 8 Direction changing section 10 Hopper 14 Brake section 16 Brake belt 26 Nipping roller 30 Acceleration roller FR Filter rod

Claims (2)

A braking section provided along a delivery path extending from an open end of the blower tube and braking a filter rod delivered from the blower tube;
A pair of accelerating rollers provided downstream of the braking section in the delivery path and forming an acceleration passage for accelerating the filter rod when the filter rod is braked,
A direction conversion section that is provided at the end of the delivery path, receives the accelerated filter rod, converts the delivery direction of the filter rod into a direction orthogonal to the delivery path, and sends the filter rod to a hopper. Equipped,
The braking section comprises:
Including a pair of endless braking belts arranged to sandwich the delivery path, cooperating with each other to pinch the filter rod, and decelerating the pinched filter rod and transferring it toward the pair of acceleration rollers. Characteristic filter cigarette filter rod receiving device. The braking section comprises:
The pair of endless brakes are rotatably disposed between the open end of the blower tube and the pair of endless braking belts with the delivery path interposed therebetween, and when the filter rod comes out of the blower tube, The cigarette filter rod receiving device according to claim 1, further comprising a pair of holding rollers cooperating with a belt to enable the filter rod to be held at two front and rear positions.

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