CN212823409U - On-line laser perforating device for rod-shaped articles - Google Patents
On-line laser perforating device for rod-shaped articles Download PDFInfo
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- CN212823409U CN212823409U CN202021504354.7U CN202021504354U CN212823409U CN 212823409 U CN212823409 U CN 212823409U CN 202021504354 U CN202021504354 U CN 202021504354U CN 212823409 U CN212823409 U CN 212823409U
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Abstract
The utility model belongs to the technical field of laser beam drilling, in particular to an online laser beam drilling device for bar-shaped article. The online laser drilling device comprises: the device comprises a receiving drum (1), a transfer drum (4), a rubbing roller (6) and a laser (7); the laser (7) is arranged in a mode that laser emitted by the laser is vertically downward; the rubbing roller (6) is arranged between the receiving drum (1) and the transfer drum (4); the rotation directions of the receiving drum (1) and the transmission drum (4) are opposite, and a distance exists between the roll surfaces of the receiving drum and the transmission drum; the minimum distance between the roller surface of the receiving drum (1) and the roller surface of the rubbing roller (6) is slightly smaller than the cross-sectional diameter of the rod-shaped articles. The utility model discloses an online laser perforating device can punch to the global of bar-shaped article, because the appeal effect of negative pressure, but bar-shaped article accurate positioning, the precision of punching is high, and the design is simple, and need not stir the device of bar-shaped article rotation in addition.
Description
Technical Field
The utility model belongs to the technical field of laser beam drilling, in particular to an online laser beam drilling device for bar-shaped article.
Background
In the current market of heating cigarettes, in order to reduce the adsorption effect of the filter stick on smoke and substances in the smoke, materials such as shortened acetate fiber and the like are adopted in the cigarettes to manufacture the solid filter stick, and an acetate fiber hollow tube or a paper tube is used as a transition section for connecting a smoke medium section of the heating cigarettes with the filter stick. The acetate fiber hollow pipe or the paper pipe not only has the function of supporting and connecting, but also has a certain cooling effect, and is generally called as a hollow supporting section. Meanwhile, in order to reduce the smoke temperature in the heated cigarette to a proper smoking taste, a temperature reduction section is often arranged between the hollow support section and the filter stick so as to effectively reduce the smoke temperature, such as the cigarette structure disclosed in the fimi international CN 201280061528.9 patent. However, if the heating temperature is raised, the temperature of the smoke entering the oral cavity is obviously raised, the current cigarette structure cooling mode cannot meet the current cooling requirement, and holes can be formed in the hollow pipe section of the cigarette supporting section so as to supplement external air to the air flow in the cigarettes and reduce the temperature of the smoke entering the oral cavity.
At present, the laser is used for punching cigarettes, and the tipping paper is arranged on a plane and is beaten into one row or more than one row according to the design requirements of products, and then is rolled and connected. However, if the hollow pipe section for heating cigarettes needs to be perforated, the current perforation method cannot be used for perforating the circumferential surface of the hollow pipe section.
In order to solve the above problems, the present invention is provided.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the first aspect provides an online laser beam drilling device for bar-shaped article, online laser beam drilling device includes: the device comprises a receiving drum 1, a transfer drum 4, a rubbing roller 6 and a laser 7;
the roller surface of the receiving drum 1 is circumferentially provided with a plurality of conveying teeth 2, and each conveying tooth 2 is provided with at least one second air opening 9;
a plurality of air suction grooves 5 are circumferentially arranged on the roller surface of the transfer drum 4, and at least one first air opening 8 is arranged in each air suction groove 5;
the laser 7 is arranged in a mode that laser emitted by the laser is vertically downward;
the rubbing roller 6 is arranged between the receiving drum 1 and the transfer drum 4;
the rotation directions of the receiving drum 1 and the transmission drum 4 are opposite, and a distance exists between the roller surfaces of the receiving drum 1 and the transmission drum 4;
the minimum distance between the roller surface of the receiving drum 1 and the roller surface of the rubbing roller 6 is slightly smaller than the cross-sectional diameter of the rod-shaped article.
Preferably, at least one second tuyere 9 is provided at each of the conveying teeth 2 in contact with the roll surface of the receiving drum 1. Alternatively, at least a part of the profile of the conveying tooth is an arc-shaped curved surface and the second tuyere 9 is arranged on the arc-shaped curved surface so as to be matched with the cylindrical profile of the rod-shaped article and be suitable for sucking the rod-shaped article.
Preferably, the relative positions of the receiving drum 1, the transfer drum 4 and the rubbing roller 6 are set as follows:
the rotating shaft position of the transfer drum 4 is lower than that of the receiving drum 1, and the rotating shaft position of the receiving drum 1 is lower than that of the pickup roller 6.
Preferably, the rubbing roller 6 has a first rubbing mechanism on the roller surface for rubbing the rod-shaped article, and the receiving drum 1 has a second rubbing mechanism on the roller surface for rubbing the rod-shaped article.
Preferably, the first twisting mechanism is a rough surface or a tooth pattern surface arranged on the roller surface of the twisting roller 6, and the second twisting mechanism is a rough surface or a tooth pattern surface arranged on the roller surface of the receiving drum 1.
The rough or toothed surfaces of the roller 6 and the roll surface of the receiving drum 1 can be arranged independently of one another.
Preferably, the minimum distance between the roller surface of the receiving drum 1 and the roller surface of the rubbing roller 6 is 95% to 100% of the cross-sectional diameter of the rod-shaped article, and may be, for example, 95%, 96%, 97%, 98%, 99%.
Preferably, the minimum distance between the roller surface of the receiving drum 1 and the roller surface of the rubbing roller 6 is 98% to 100% of the cross-sectional diameter of the rod-shaped article.
Preferably, the first tuyere 8 and the second tuyere 9 are independently of each other pores or through holes.
The first tuyere 8 and the second tuyere 9 are both communicated with a negative pressure generating device, and both provide a negative pressure around the tuyere to attract the rod-shaped articles to be held on the roll surface.
The negative pressure generating device is selected from vacuum pumps and other equipment.
The utility model discloses the second aspect provides an online laser beam drilling method for bar-shaped article, its use the utility model discloses the first aspect online laser beam drilling device go on, online laser beam drilling method includes following step:
A. conveying the rod-shaped articles to an air suction groove 5 of a transfer drum 4, stably keeping the rod-shaped articles on the air suction groove by means of negative pressure, transferring the rod-shaped articles to conveying teeth 2 of a receiving drum 1 along with the rotation of the transfer drum 4, and stably keeping the rod-shaped articles on the conveying teeth by means of negative pressure;
B. when the rod-shaped articles are conveyed to be in contact with the rubbing rollers 6 along with the rotation of the receiving drum 1, the rod-shaped articles are slightly compressed and deformed under the combined action of the receiving drum 1 and the rubbing rollers 6 and then conveyed to a punching position a;
C. at the punching position a, along with the rotation of the receiving drum 1, the second air ports 9 are far away from the rod-shaped articles, and the rod-shaped articles no longer receive negative pressure and rotate under the action of the rubbing roller 6, the receiving drum 1 and the self gravity;
D. during the rotation of the rod-shaped article, a laser 7 emits laser and perforates the peripheral surface of the rod-shaped article;
E. after the completion of punching a round of the rod-shaped article, the next conveying tooth 2 of the receiving drum 1 conveys the rod-shaped article to a subsequent process;
the laser 7 emits laser light vertically downward in the direction of gravity and passes through the rod-shaped article in the diameter direction.
Preferably, the frequency of emitting laser light by the laser 7 is adjusted to adjust the number of holes punched on the circumferential surface of the rod-like article.
Preferably, the power output by the laser 7 is more than or equal to 450W.
Preferably, the rod-shaped article is a cigarette 3 with a hollow pipe section, and the laser 7 is arranged to perforate the hollow pipe section.
Preferably, in step E, the next conveying tooth 2 brings along the next rod-shaped article to be punched at the same time.
Preferably, the hollow pipe section is a hollow paper pipe with the wall thickness of 0.2-0.8 mm.
The third aspect of the present invention provides the first aspect of the present invention, wherein the method is used for punching the circumferential surface of a rod-shaped article and improving the punching accuracy.
The technical scheme can be freely combined on the premise of no contradiction.
The utility model discloses following beneficial effect has:
the utility model discloses an online laser perforating device can punch to the global of bar-shaped article, because the appeal effect of negative pressure, but bar-shaped article accurate positioning, bar-shaped article rely on gravity and the rotatory relative fixation of device to punch the position, but the rotation again simultaneously, the precision of punching is high, the design is simple, is convenient for maintain, and need not stir the device of bar-shaped article rotation in addition.
In addition, the laser emits laser light vertically downward, in line with the direction of gravity. As the rod-shaped articles can jump upwards with small amplitude in the process of autorotation. Therefore, when the laser emitting position of the laser 7 is set obliquely above the rod-shaped article, the punching position may be shifted, for example, the hole diameter may be varied, the hole shape may be varied, and the laser passing path may not be in the diameter direction. When the laser emitting position of the laser is arranged right above the rod-shaped article, even if the rod-shaped article jumps upwards, the punching position does not deviate, and the aperture and the hole shape are kept consistent in the punching process of one rod-shaped article.
Drawings
FIG. 1 is a schematic view of an on-line laser drilling apparatus for rod-shaped articles according to example 1.
Figure 2 shows a tobacco rod 3 to be perforated according to example 2.
List of reference numerals:
1. the cigarette smoking device comprises a receiving drum, 2 parts of conveying teeth, 3 parts of cigarettes, 3-1 parts of smoking medium sections, 3-2 parts of hollow paper tube sections, 3-3 parts of filter rod sections, 4 parts of transfer drums, 5 parts of air suction grooves, 6 parts of rubbing rollers, 7 parts of lasers, 8 parts of first air ports, 9 parts of second air ports.
Detailed Description
The present invention will be further described with reference to the following detailed description.
Example 1
Referring to fig. 1, an in-line laser drilling apparatus for rod-shaped articles, the in-line laser drilling apparatus comprising: the device comprises a receiving drum 1, a transfer drum 4, a rubbing roller 6 and a laser 7;
a plurality of conveying teeth 2 are circumferentially arranged on the roller surface of the receiving drum 1, and at least one second air opening 9 is arranged at the contact part of each conveying tooth 2 and the roller surface of the receiving drum 1;
a plurality of air suction grooves 5 are circumferentially arranged on the roller surface of the transfer drum 4, and at least one first air opening 8 is arranged in each air suction groove 5;
the laser 7 is arranged in a mode that laser emitted by the laser is vertically downward;
the rubbing roller 6 is arranged between the receiving drum 1 and the transfer drum 4;
the rotation directions of the receiving drum 1 and the transmission drum 4 are opposite, and a distance exists between the roller surfaces of the receiving drum 1 and the transmission drum 4;
the minimum distance between the roller surface of the receiving drum 1 and the roller surface of the rubbing roller 6 is slightly smaller than the cross-sectional diameter of the rod-shaped article.
The relative positions of the receiving drum 1, the transfer drum 4 and the rubbing roller 6 are set as follows:
the center position of the cross section of the transfer drum 4 is lower than that of the cross section of the receiving drum 1, and the center position of the cross section of the receiving drum 1 is lower than that of the cross section of the rubbing roller 6.
The roller surface of the rubbing roller 6 is a tooth-grain surface, and a first rubbing mechanism capable of rubbing and rotating the rod-shaped article is formed. The roller surface of the receiving drum 1 is rough, and a second twisting mechanism capable of twisting rod-shaped articles is formed.
The minimum distance between the roller surface of the receiving drum 1 and the roller surface of the rubbing roller 6 is 98% of the cross-sectional diameter of the rod-shaped article.
The first tuyere 8 and the second tuyere 9 are both through holes.
12 air suction grooves 5 are circumferentially arranged on the roller surface of the transfer drum 4, and a through hole, namely a first air port 8, is formed in the bottom of each air suction groove 5, and only one air port is shown in fig. 1 as an example.
12 convex conveying teeth 2 are circumferentially arranged on the roller surface of the receiving drum 1, at least one through hole, namely a second air port 9, is arranged at the contact position of each conveying tooth 2 and the roller surface of the receiving drum 1, only 2 air ports are shown in fig. 1 as an example, and the 2 second air ports 9 are respectively arranged at the upstream and the downstream of the same conveying tooth 2;
the rotation direction of the receiving drum 1 is described as from downstream to upstream.
The conveying drum 4 and the receiving drum 1 are internally provided with negative pressure pumping devices, so that the first air openings 8 and the second air openings 9 are in a negative pressure state, and the rod-shaped articles can be sucked.
The shape design of air suction groove 5 is as follows: at least a part of the volume of the rod-shaped articles can be kept in the air suction grooves 5, so that the rod-shaped articles can be stably kept on the transfer drum 4 by the force of the negative pressure in the air suction grooves 5 when the transfer drum 4 rotates.
The cross section of the air suction groove 5 is arc-shaped.
The conveying tooth 2 has at least one arc-shaped side surface, so that at least partial volume of the rod-shaped articles can be kept in the arc-shaped part of the side surface of the conveying tooth 2, and the rod-shaped articles can be stably kept on the receiving drum 1 by means of the force of negative pressure generated by the second air openings 9 at the conveying tooth 2 when the receiving drum 1 rotates.
Fig. 1 is a schematic diagram of an on-line laser drilling device for rod-shaped articles according to embodiment 1, wherein the rotation directions of the receiving drum 1, the transfer drum 4 and the rubbing roller 6 are shown in the arrow directions on the cross section of the roller surfaces in fig. 1, and in fig. 1, the receiving drum 1 and the transfer drum 4 only show part of the roller surfaces.
Example 2
As shown in fig. 1 and 2, the on-line laser drilling method for the rod-shaped article is carried out by using the on-line laser drilling device in the embodiment 1, the rod-shaped article in the embodiment 2 is a cigarette 3, and the cigarette 3 comprises a smoking medium section 3-1, a hollow paper tube section 3-2 and a filter stick section 3-3 which are sequentially abutted.
The wall thickness of the hollow paper tube section 3-2 is 0.8mm, and the circumference is 16.8 mm. Adjusting the output power of the laser 7 to 500W, punching the hollow paper tube section 3-2, wherein the punched hole diameter is 0.2mm, and each cigarette 3 is punched in a single row, so that the total number of the punched holes is 12.
The online laser drilling method comprises the following steps:
A. starting the transfer drum 4, the receiving drum 1 and the rubbing roller 6, enabling the transfer drum 4 and the rubbing roller 6 to rotate clockwise, and enabling the receiving drum 1 to rotate anticlockwise;
B. after the cigarettes 3 of the hollow paper pipe section 3-2 are rubbed and connected with tipping paper, the hollow paper pipe section 3-2 is perforated, the cigarettes 3 are cut and turned around and then are conveyed to an air suction groove 5 of a transfer drum 4, and the cigarettes 3 are transferred to an arc-shaped part on the side surface of the conveying teeth 3 of the receiving drum 1 along with the rotation of the transfer drum 4;
C. the cigarettes 3 rotate along with the receiving drum 1, and when the cigarettes 3 are conveyed to be in contact with the rubbing roller 6, the cigarettes 3 are slightly deformed and conveyed to a punching position a under the combined action of the receiving drum 1 and the rubbing roller 6;
D. at the punching position a, because the conveying teeth 2 and the second air ports 9 around the conveying teeth 2 start to be far away from the cigarettes 3, the receiving drum 1 does not apply negative pressure to the cigarettes 3 any more, and the cigarettes 3 rotate under the action of the tooth grain surface of the rubbing roller 6, the rough surface of the receiving drum 1 and the self gravity of the cigarettes;
E. in the rotating process of the cigarette 3, the laser 7 emits laser and punches the paper tube 3-2, and the laser 7 emits laser vertically downwards and in the same direction as the gravity;
F. and after the hollow paper pipe section is punched for 3-2 weeks, the next conveying tooth 2 of the receiving drum 1 pushes the cigarette 3 to be conveyed to the subsequent process.
Fig. 1 shows the operation of the on-line laser drilling device during the drilling process, wherein three cigarettes 3 are held on the drilling device.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. An on-line laser drilling device for rod-shaped articles, characterized in that the on-line laser drilling device comprises: the device comprises a receiving drum (1), a transfer drum (4), a rubbing roller (6) and a laser (7);
the roller surface of the receiving drum (1) is circumferentially provided with a plurality of conveying teeth (2), and each conveying tooth (2) is provided with at least one second air opening (9);
a plurality of air suction grooves (5) are circumferentially arranged on the roller surface of the transfer drum (4), and at least one first air opening (8) is arranged in each air suction groove (5);
the laser (7) is arranged in a mode that laser emitted by the laser is vertically downward;
the rubbing roller (6) is arranged between the receiving drum (1) and the transfer drum (4);
the rotation directions of the receiving drum (1) and the transmission drum (4) are opposite, and a distance exists between the roll surfaces of the receiving drum and the transmission drum;
the minimum distance between the roller surface of the receiving drum (1) and the roller surface of the rubbing roller (6) is slightly smaller than the cross-sectional diameter of the rod-shaped articles.
2. The on-line laser drilling device according to claim 1, wherein the relative positions of the receiving drum (1), the transfer drum (4) and the rubbing roller (6) are set as follows:
the position of a rotating shaft of the delivery drum (4) is lower than that of the receiving drum (1), and the position of the rotating shaft of the receiving drum (1) is lower than that of the rubbing roller (6).
3. The on-line laser drilling device as claimed in claim 1, wherein the rubbing roller (6) has a first rubbing mechanism on the roller surface for rubbing the rod-shaped article, and the receiving drum (1) has a second rubbing mechanism on the roller surface for rubbing the rod-shaped article.
4. The on-line laser drilling device as claimed in claim 3, wherein the first twisting mechanism is a rough surface or a toothed surface arranged on the roll surface of the rubbing roll (6), and the second twisting mechanism is a rough surface or a toothed surface arranged on the roll surface of the receiving drum (1).
5. The in-line laser drilling device according to claim 1, wherein the minimum distance between the roller surface of the receiving drum (1) and the roller surface of the rubbing roller (6) is 95-100% of the cross-sectional diameter of the rod-shaped article.
6. The online laser drilling device according to claim 1, wherein the first tuyere (8) and the second tuyere (9) are independently a hole or a through hole, and the first tuyere (8) and the second tuyere (9) are both communicated with a negative pressure generating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021504354.7U CN212823409U (en) | 2020-07-27 | 2020-07-27 | On-line laser perforating device for rod-shaped articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021504354.7U CN212823409U (en) | 2020-07-27 | 2020-07-27 | On-line laser perforating device for rod-shaped articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212823409U true CN212823409U (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021504354.7U Active CN212823409U (en) | 2020-07-27 | 2020-07-27 | On-line laser perforating device for rod-shaped articles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212823409U (en) |
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2020
- 2020-07-27 CN CN202021504354.7U patent/CN212823409U/en active Active
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