JPH06327457A - Fluted trumpet guide for tobacco filter production unit - Google Patents

Abstract

PURPOSE:To provide the subject fluted trumpet guide so designed that a penetrating hole is provided through a tapered inner peripheral surface and circumferentially extending flutes are provided on the inner peripheral surface of said penetrating hole to ensure said inner peripheral surface to be resistant to stain adherence. CONSTITUTION:A penetrating hole is provided through the inner peripheral surface 2 tapered from its entrance 1a toward exit 1b. Circumferentially extended annular flutes 3 are provided at regular intervals on the inner peripheral surface 2 of the penetrating hole.

Description

Detailed Description of the Invention

[0001]

[Industrial applications]

The present invention relates to a grooved trumpet guide for a cigarette filter manufacturing apparatus.

[0003]

[Prior art]

In general, a cigarette filter manufacturing apparatus for producing a cylindrical cigarette filter plug is designed to stretch a band-shaped filter material made of a fibrous material such as cellulose or acetate with rollers having different peripheral speeds and to stretch the stretched filter material. In addition, the addition part for adding a plasticizer, an additive, etc., a band-shaped filter material to which the additive, etc. is added by the addition part, is molded into a cylindrical shape so as to wrap the additive, etc., and a molding part. A winding tube portion around which the winding paper is wound is provided around the cylindrical filter material.

The forming part of the cigarette filter manufacturing apparatus is arranged between the adding part and the winding part, and includes a trumpet guide,
It has a transfer jet or the like that sends out the filter material by compressed air, and forms the band-shaped filter material stepwise into a cylindrical shape while being conveyed from the adding section to the winding tube section.

The conventional trumpet guide has a truncated cone shape that gradually decreases from the inlet side (adding portion side) to the outlet side (winding tube side), and has a diameter inside, from the inlet side to the outlet side. The through hole is formed by the tapering inner peripheral surface that becomes gradually smaller.

According to the trumpet guide, as the belt-shaped filter material entering from the inlet side is conveyed to the outlet side, the inner peripheral surface of the through hole causes both end sides to contact the inner peripheral surface at high speed and gradually. It is rounded by being lifted to
Finally, it comes out from the outlet side in a rolled state so as to wrap the additives and the like.

[0008]

[Problems to be Solved by the Invention]

However, in the conventional trumpet guide, when the filter material is rolled, the mixture of the plasticizer, the additive and the like scattered from the filter material is continuously rubbed to become sticky stains on the inner peripheral surface. Adhere to.

Then, the dirt attached to the inner peripheral surface hinders the flow of the filter material, causing inconveniences such as loosening and winding of the filter material, and the tobacco filter manufacturing apparatus may stop after continuous use.

For this reason, in the conventional cigarette filter manufacturing apparatus equipped with the trumpet guide, it is necessary to stop the machine every 3 to 4 hours to perform periodic cleaning to remove dirt on the inner peripheral surface, which leads to manufacturing efficiency. The decline was inevitable.

Therefore, an object of the present invention is to provide a means for preventing dirt from adhering to the inner peripheral surface of the through hole of the trumpet guide, allowing the tobacco filter manufacturing apparatus to be continuously used, and improving manufacturing efficiency. .

[0013]

[Means for Solving the Problems]

Means for solving the problems of the present invention are as follows.

First, a band-shaped filter material in which a plasticizer, an additive and the like are added to a band-shaped filter material in which the crimp is stretched and a band-shaped filter material in which the plasticizer, the additive and the like are added by the addition section are provided. The cigarette filter manufacturing apparatus has a molding part that is molded into a cylindrical shape so as to wrap a plasticizer, an additive, and the like, and a winding tube part that winds a paper roll around the filter material that is cylindrically shaped by the molding part. A trumpet guide used for a forming part, in which a through hole is formed by a tapered inner peripheral surface whose diameter decreases from the inlet side toward the outlet side, and a groove extending in the circumferential direction is formed on the inner peripheral surface of the through hole. It is a grooved trumpet guide of a cigarette filter manufacturing apparatus, characterized in that.

Here, the groove extending in the circumferential direction may be any groove as long as it makes the contact between the filter material and the inner peripheral surface discontinuous,
In addition to forming a ring shape, it also includes a shape that is not a completely continuous ring shape, and is not limited to a shape that is formed strictly in the circumferential direction, but includes a shape that is formed slightly obliquely.

[0017]

[Action]

According to the grooved trumpet guide of the cigarette filter manufacturing apparatus of the present invention, the band-shaped filter material that has entered from the inlet side of the through hole is conveyed to the outlet side of the through hole, and thus the inner peripheral surface of the through hole is formed. By this, both ends are brought into contact with the inner peripheral surface at high speed and gradually lifted to be rounded,
Finally, it comes out from the outlet side in a rolled state so as to wrap the additives and the like.

At this time, the mixture of the plasticizer, the additive and the like scattered from the filter material has a groove formed on the inner peripheral surface of the through hole, so that the contact between the filter material and the inner peripheral surface becomes discontinuous. Since it is not rubbed continuously, the growth of sticky dirt is suppressed.

[0020]

【Example】

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view showing a cutout of a grooved trumpet guide of the cigarette filter manufacturing apparatus of the present invention, and FIG. 2 is a usage state of the grooved trumpet guide of the cigarette filter manufacturing apparatus of the present invention. FIG.

As shown in FIG. 1, the grooved trumpet guide 1 has a truncated cone shape that gradually decreases from the inlet side 1a to the outlet side 1b, and is internally provided from the inlet side 1a to the outlet side 1b.
The through hole is formed by the tapered inner peripheral surface 2 having a diameter that gradually decreases toward.

On the inner peripheral surface 2 of the through hole, an annular groove 3 extending in the circumferential direction is provided along the axial direction of the through hole, on the inlet side 1a.
So that the diameter gradually decreases from the outlet side 1b,
A plurality of them are formed at regular intervals.

The grooves 3 have a width of 4 mm and are formed at intervals of 2 mm, as an example of specific dimensions.

It is sufficient that at least one groove 3 is formed on the inner peripheral surface 2, and the number, size, etc. are not limited.

Next, with reference to FIG. 2, a usage state of the cigarette filter manufacturing apparatus having the grooved trumpet guide of the present invention will be described.

In the cigarette filter manufacturing apparatus, an addition section 10 for adding triacetin as a plasticizer 12 and activated carbon as an additive 13 to a band-shaped filter material 11 in which a crimp is stretched, and Agent 1
2 and the band-shaped filter material 11 to which the additive 13 is added,
It has a molding portion 20 that is formed into a cylindrical shape so as to wrap the plasticizer 12 and the additive 13, and a winding tube portion 30 that winds a paper roll 31 around the filter material 11 that is formed into a cylindrical shape by the molding portion 20. There is.

As the filter material 11, cellulose acetate tow, which has been crimped, folded in order, and packed in a compressed state, is moved laterally by the action of an air jet of a binding jet (not shown). After spreading and opening, rolls with different peripheral speeds (not shown)
The crimp is stretched in the longitudinal direction by the tension.

The adding section 10 adds the plasticizer 12 from the plasticizer storage hopper 14 to the filter material 11 and then rotates the additive roll 16 from the additive 13 stored in the additive storage hopper 15. Free fall and filter material 1
Add to 1.

The molding section 20 is composed of the winding section 3 from the addition section 10 side.
The grooved trumpet guide 1, the transfer jet 21, the guide 22, and the tongs 2 are arranged in this order toward the 0 side.
3 are installed.

In the grooved trumpet guide 1, the band-shaped filter material 11 that has entered from the inlet side (addition section side) 1a is
As it is conveyed to the outlet side (winding tube side) 1b, both ends are brought into contact with the inner peripheral surface 2 at high speed and gradually lifted up by the inner peripheral surface 2 of the through hole, and finally,
It comes out from the outlet side 1b in a rolled state so as to wrap the plastic material 12, the additive 13, and the like.

At this time, the mixture of the plasticizer 12 and the additive 13 scattered from the filter material 11 has the groove 3 formed in the inner peripheral surface 2 of the through hole, so that the filter material 11 and the inner peripheral surface 2 are formed.
Since the contact with was not discontinuous and was not continuously rubbed, the growth of sticky dirt was suppressed.

Therefore, the flow of the filter material 11 is not obstructed, and inconveniences such as slack and winding of the filter material 11 are unlikely to occur, and there is no need to stop the machine every 3 to 4 hours to perform regular cleaning. It was possible to use continuously.

The filter material 11 rounded by the grooved trumpet guide 1 is sent out by compressed air by the transfer jet 21 and molded, and then the guide 22.
And is formed into a predetermined diameter by the tongs 23.

The winding tube portion 30 is rolled by the molding portion 20 while applying the adhesive to the end of the winding paper 31 by the adhesive supply device 33 and holding the winding paper 31 coated with the adhesive with the ganiter tape 32. The filter material 11 is wrapped around.

Although not shown, the filter material 11 on which the winding paper 31 is wound by the winding tube portion 30 is formed into a continuous rod-like body by compression molding and sent out, and then cut into a predetermined length. Sent to the process.

[0038]

【The invention's effect】

The grooved trumpet guide of the cigarette filter manufacturing apparatus of the present invention has a groove formed on the inner peripheral surface of the through hole so that the contact between the filter material and the inner peripheral surface is discontinuous and continuously rubbed. Therefore, the growth of adhesive stains is suppressed, stains are less likely to adhere to the inner peripheral surface of the through hole, the cigarette filter manufacturing apparatus can be continuously used, and manufacturing efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a side view showing a grooved trumpet guide of a cigarette filter manufacturing apparatus of the present invention with a part cut away.

FIG. 2 is a schematic view showing a usage state of the grooved trumpet guide of the cigarette filter manufacturing apparatus of the present invention.

[Explanation of symbols]

 1 Groove Trumpet Guide 1a Inlet Side 1b Outlet Side 2 Inner Surface 3 Groove 10 Addition Part 11 Filter Material 12 Plasticizer 13 Additive 14 Plasticizer Storage Hopper 15 Additive Storage Hopper 16 Additive Roll 20 Forming Part 21 Transferjet 22 Guide 23 Tongue 30 Winding pipe part 31 Rolling paper 32 Garniture tape 33 Adhesive supply device

Claims (1)

[Claims] 1. A plastic filter and a band-shaped filter material, to which a plasticizer, an additive, etc. are added, are added to a band-shaped filter material having a crimped stretch. The molding part of the cigarette filter manufacturing apparatus, which has a molding part that is molded into a cylindrical shape so as to wrap the agent and additives, and a winding tube part around which the filter material is cylindrically shaped by the molding part and that winds a paper roll. A trumpet guide used for, in which a through hole is formed by a tapered inner peripheral surface whose diameter decreases from the inlet side to the outlet side, and a groove extending in the circumferential direction is formed on the inner peripheral surface of the through hole. A grooved trumpet guide for a cigarette filter manufacturing device.