Laser heating device for cigarette bar

Abstract

The utility model discloses a laser heating device for a cigarette bar, and relates to the technical field of heating devices. According to the main technical scheme, the device comprises a laser, a bottom plate and a connecting plate, wherein the bottom plate is used for being connected to a discharge port of a cigarette bar crimping device; a smoke guide groove is formed in the upper plate surface of the bottom plate, the smoke guide groove is used for corresponding to a discharge port of a cigarette bar crimping device, and a groove opening of the smoke guide groove corresponds to a gluing part on a cigarette bar; the connecting plate is arranged on the bottom plate; the laser device is arranged on the connecting plate, corresponds to a notch of the cigarette guide groove, and is used for heating a gluing part on the cigarette bar. And when the cigarette bar passes through the laser along the cigarette guide groove, a laser beam emitted by the laser directly acts on a gluing part of the cigarette bar. The purposes that the temperature is increased instantly, then glue is promoted to be rapidly cured, and cigarette strips are rapidly dried and sealed are achieved. And meanwhile, the risk that the heating temperature fluctuates is effectively reduced, the probability that the heating temperature needs to be adjusted to the normal value for a long time is further reduced, and therefore the purpose of improving the drying effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating devices, and particularly relates to a laser heating device for cigarette rods. Background Art

[0002] A cigarette making unit is a special device used to wrap a tobacco strip that meets the process requirements conveyed by a feeding and strip-forming machine with cigarette paper printed with trademarks, and then perform gluing, sealing, drying, and cutting. Among them, the pasting process of cigarette paper is an important link in cigarette production, ensuring that the cigarette paper can effectively wrap the tobacco and form a complete cigarette.

[0003] Existing cigarette making units mainly use an electric soldering iron device to heat and dry tandem or single pre-coated cigarette rods. The cigarette making unit includes a selection switch, a monitor, a solenoid valve arranged at an air jet port, and an electric soldering iron device including a first sealer and a second sealer. When the selection switch is placed in "I" and the machine starts, the first sealer automatically descends onto the cigarette rod according to the program. At the same time, the solenoid valve at the air jet port is briefly opened. The cylinder pushes the first sealer to descend. When the monitor detects that the first sealer has descended to a preset position and the running speed of the cigarette rod reaches 130 - 260 m / min, the second sealer descends according to the program.

[0004] During the heating process, the heating temperature of the electric soldering iron device is prone to large fluctuations. When the heating temperature of the electric soldering iron device fluctuates, it takes a long time to adjust the heating temperature back to the normal value, greatly reducing the drying effect. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a laser heating device for cigarette rods. When the cigarette rod passes through the laser through the smoke guide groove, the high-energy density laser beam emitted by the laser directly acts on the glued part of the cigarette rod. It effectively reduces the risk of fluctuations in the heating temperature, and further reduces the probability of taking a long time to adjust the heating temperature back to the normal value, thereby achieving the purpose of improving the drying effect.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A laser heating device for cigarette rods includes a laser, a bottom plate, and a connecting plate. The bottom plate is used to connect to the discharge port of a cigarette rod crimping device; a smoke guide groove is formed on the upper plate surface of the bottom plate. The smoke guide groove is used to correspond to the discharge port of the cigarette rod crimping device, and the groove opening of the smoke guide groove corresponds to the glued part on the cigarette rod; the connecting plate is arranged on the bottom plate; wherein, the laser is arranged on the connecting plate, the laser corresponds to the groove opening of the smoke guide groove, and the laser is used to heat the glued part on the cigarette rod.

[0008] A further solution is that the connecting plate includes a first plate body and a second plate body; the first plate body is disposed on the upper plate surface of the bottom plate; the first plate body extends along the length direction of the smoke guide groove; the second plate body is connected to the first plate body, and the second plate body is located directly above the smoke guide groove; the laser is disposed on the second plate body.

[0009] A further solution is that an installation groove is formed on the second plate body; the laser is installed in the installation groove; a light-transmitting hole is provided at the bottom of the installation groove; the light-transmitting hole corresponds to the smoke guide groove.

[0010] A further solution is that a receiving groove is formed on the groove wall of the installation groove; the receiving groove extends from the upper end of the groove wall of the installation groove to the lower end of the groove wall of the installation groove; the connector of the laser is located in the receiving groove.

[0011] A further solution is that the number of the second plate bodies is two; the two second plate bodies are arranged in sequence along the length direction of the smoke guide groove; the two lasers are respectively disposed on the two second plate bodies.

[0012] A further solution is that the two second plate bodies are oppositely disposed on the first plate body; the receiving grooves on the second plate bodies are located on the sides where the two second plate bodies are away from each other.

[0013] A further solution is that one second plate body is attached to the other second plate body.

[0014] A further solution is that the laser includes a plurality of laser heating units arrayed in a horizontal plane.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] When the cigarette bar passes through the laser along the smoke guide groove, the high-energy density laser beam emitted by the laser directly acts on the glue-applied part of the cigarette bar. On the one hand, the temperature is instantaneously increased, thereby promoting the rapid curing of the glue, so as to quickly dry and seal the cigarette bar. On the other hand, compared with the traditional electric soldering iron device, the laser heating has higher temperature control accuracy and faster response speed. Once it is detected that the glue-applied part needs to be heated, the laser can be quickly started and provide stable heat, effectively reducing the risk of temperature fluctuation during heating, and further reducing the probability of taking a long time to adjust the heating temperature back to the normal value, thereby achieving the purpose of improving the drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of a laser heating device for cigarette bars in this embodiment;

[0018] Figure 2 This is the front view structural schematic diagram of the laser for a laser heating device for cigarette rods in this embodiment.

[0019] Marks in the accompanying drawings and corresponding component names:

[0020] 1 - Laser; 101 - Laser heating unit; 2 - Base plate; 3 - Cigarette rod crimping device; 4 - Smoke guiding groove; 5 - Cigarette rod;

[0021] 6 - Connecting plate; 61 - First plate body; 62 - Second plate body;

[0022] 7 - Installation groove; 8 - Light transmission hole; 9 - Accommodation groove. Specific implementation manners

[0023] The present utility model will be further described below in conjunction with the accompanying drawings.

[0024] Embodiment 1

[0025] This embodiment provides a laser heating device for cigarette rods. As Figure 1 shown, it includes a laser 1, a base plate 2 and a connecting plate 6. The base plate 2 is used to be connected to the discharge port of the cigarette rod crimping device 3. A smoke guiding groove 4 is formed on the upper plate surface of the base plate 2. The smoke guiding groove 4 is used to correspond to the discharge port of the cigarette rod crimping device 3, and the notch of the smoke guiding groove 4 corresponds to the glue - applying part on the cigarette rod 5. The connecting plate 6 is arranged on the base plate 2. Among them, the laser 1 is arranged on the connecting plate 6, the laser 1 corresponds to the notch of the smoke guiding groove 4, and the laser 1 is used to heat the glue - applying part on the cigarette rod 5.

[0026] Exemplarily, during implementation, a smoke guiding groove 4 is formed on the upper plate surface of the base plate 2, and the smoke guiding groove 4 extends from one end of the upper plate surface of the base plate 2 to the other end of the upper plate surface of the base plate 2. The connecting plate 6 is connected to the upper plate surface of the base plate 2 by means of welding fixation, screw connection fixation or integral molding, etc.

[0027] The laser 1 can adopt a CO2 laser, a YAG laser, a fiber laser, a high - power direct semiconductor laser, etc.

[0028] Among them, the wavelength of the CO2 laser is usually λ = 10.6μm (IR). In order to obtain better absorbance of the material, some CO2 lasers can obtain wavelengths of λ = 9.3 and 10.2μm by adjusting the gas composition. Most non - metallic materials or oxidized materials can adopt CO2 lasers. From the aspects of encapsulation and excitation methods, there are also DC / axial - flow CO2 lasers in glass tubes and radio - frequency all - metal CO2 lasers on the market. The main differences between the CO2 laser and the radio - frequency all - metal CO2 laser lie in the different electro - optical conversion efficiencies and beam qualities.

[0029] The wavelength of the YAG laser is λ = 1.06 μm (NIR). The YAG laser is a typical solid-state laser. The basic components of the YAG laser include a laser working medium, a pump source, and a resonator cavity. The full name of YAG is yttrium aluminum garnet, and its chemical formula is Y3Al5O15. The most commonly used Nd:YAG in the market is obtained by doping the activation ion Nd3+ (about 1%) into the YAG matrix to become Nd:YAG. Since the threshold of Nd:YAG is much lower than that of ruby and neodymium glass, and the Nd:YAG crystal also has excellent thermal properties, the YAG laser has the characteristics of obtaining higher power and high repetition frequency. Therefore, it has been widely used in industry and scientific research.

[0030] The wavelength of the fiber laser is λ = 1.06 μm (NIR). The fiber laser is also a solid-state laser. The pump medium is the cladding fiber, not the crystal rod, and the doped medium is in the fiber core. The optical amplifier is a fiber laser without cavity mirrors.

[0031] HPDD (high-power direct diode): Most of the wavelengths of HPDD in industry are between 900 nm and 1000 nm (NIR). Usually, HPDD is not a single emission source. The latest technology is to combine many LDs into a laser stack to obtain high-power output. The spot mode of HPDD is different from the traditional Gaussian spot, but a "flat-top" spot with a relatively uniform end face.

[0032] The laser 1 is connected to the connecting plate 6 by means of welding fixation, screw fixation, clamping fixation, etc. The laser 1 is located directly above the guiding groove, and the laser beam emission direction of the laser 1 is aligned with the notch of the smoke guiding groove 4, so as to achieve the purpose that the laser beam of the laser 1 can accurately act on the notch of the smoke guiding groove 4.

[0033] When using this laser heating device, the laser heating device is connected to the discharge port of the cigarette rod crimping device 3 by means of welding fixation, screw fixation, etc., and one end of the smoke guiding groove 4 is corresponding to the discharge port of the cigarette rod crimping device 3, and the extending direction of the guiding groove is consistent with the discharge direction of the cigarette rod crimping device 3. Among them, the cigarette rod crimping device 3 is a device in the prior art for winding cigarette paper with glue around a tobacco rod bundle to form a cylindrical structure. When the cigarette rod 5 coated with adhesive passes through the cigarette rod crimping device 3 to bond and press the tipping paper and filter rod paper of the cigarette rod 5, the cigarette rod 5 enters the smoke guiding groove 4 on the bottom plate 2 from the discharge port of the crimping device. The purpose is to ensure that the cigarette rod 5 slides into the smoke guiding groove 4 stably and accurately during the transmission process. When the cigarette rod 5 slides into the smoke guiding groove 4, the glue-coated part on the cigarette rod 5 corresponds to the notch of the smoke guiding groove 4. The purpose is to ensure that when the cigarette rod 5 passes through the laser beam heating area of the laser 1, the laser 1 can heat the glue-coated part on the cigarette rod 5 located at the notch of the smoke guiding groove 4. When the cigarette rod 5 passes through the laser 1 along the smoke guiding groove 4, the high-energy density laser beam emitted by the laser 1 directly acts on the glue-coated part of the cigarette rod 5. On the one hand, the purpose is to instantly increase the temperature, thereby promoting the rapid curing of the glue, so that the cigarette rod 5 can be quickly dried and sealed. On the other hand, compared with the traditional soldering iron device, the laser heating has higher temperature control accuracy and faster response speed. Once it is detected that the glue-coated part needs to be heated, the laser 1 can be quickly started and provide stable heat, effectively reducing the risk of fluctuations in the heating temperature, and further reducing the probability of taking a long time to adjust the heating temperature back to the normal value, so as to achieve the purpose of improving the drying effect.

[0034] Embodiment 2

[0035] As Figure 1 shown, on the basis of the above-mentioned Embodiment 1, in this embodiment, the connecting plate 6 includes a first plate body 61 and a second plate body 62; the first plate body 61 is arranged on the upper plate surface of the bottom plate 2; the first plate body 61 extends along the length direction of the smoke guiding groove 4; the second plate body 62 is connected to the first plate body 61, and the second plate body 62 is located directly above the smoke guiding groove 4; the laser 1 is arranged on the second plate body 62.

[0036] Exemplarily, during implementation, the above-mentioned connecting plate 6 includes a first plate body 61 and a second plate body 62. Among them, the first plate body 61 is directly installed on the upper plate surface of the bottom plate 2 by means of welding fixation, screw fixation, or integral molding, etc., and extends along the length direction of the smoke guide groove 4. The second plate body 62 is connected to the first plate body 61 by means of welding fixation, screw fixation, or integral molding, etc., and the second plate body 62 is located directly above the smoke guide groove 4. The laser 1 is fixed on the second plate body 62 by means of welding fixation, screw fixation, etc. The purpose is to ensure that the laser beam emitted by the laser 1 can directly align with the notch of the smoke guide groove 4, so as to accurately heat the glue-applied part on the cigarette rod 5.

[0037] Embodiment 3

[0038] As Figure 1 shown, on the basis of the above-mentioned Embodiment 2, in this embodiment, an installation groove 7 is provided on the second plate body 62; the laser 1 is installed in the installation groove 7; a light-transmitting hole 8 is provided at the bottom of the installation groove 7; the light-transmitting hole 8 corresponds to the smoke guide groove 4.

[0039] Exemplarily, during implementation, an installation groove 7 is provided on the upper plate surface of the second plate body 62. The laser 1 is installed in the installation groove 7 by means of welding fixation, screw fixation, etc., and the side wall of the laser 1 is attached to the wall of the installation groove 7. The purpose is to reduce the risk of displacement of the laser 1 caused by vibration or external interference, and thus ensure the continuity and stability of the heating process. A light-transmitting hole 8 is provided at the bottom of the installation groove 7, and the light-transmitting hole 8 corresponds to the smoke guide groove 4. The purpose is to ensure that the laser beam can pass through the second plate body 62 unobstructed and directly irradiate the glue-applied part of the cigarette rod 5 in the smoke guide groove 4.

[0040] Among them, the second plate body 62 can be formed by two relatively arranged "L" plates.

[0041] Embodiment 4

[0042] As Figure 1 shown, on the basis of the above-mentioned Embodiment 3, in this embodiment, a receiving groove 9 is provided on the wall of the installation groove 7; the receiving groove 9 extends along the direction from the upper end of the wall of the installation groove 7 to the lower end of the wall of the installation groove 7; the connector of the laser 1 is located in the receiving groove 9.

[0043] Exemplarily, during implementation, a receiving groove 9 is provided on the wall of the installation groove 7, and the receiving groove 9 extends from the upper end of the wall of the installation groove 7 to the lower end of the wall of the receiving groove 9. When the laser 1 is installed in the installation groove 7 on the second plate body 62, the connector on the laser 1 is located in the receiving groove 9. The purpose is to reduce the contact between the connector on the laser 1 and the wall of the installation groove 7, thereby reducing the risk of damaging the connector on the laser 1 and the probability of inconvenient wiring of the connector on the laser 1.

[0044] Example 5

[0045] As Figure 1 shown, on the basis of the above Example 4, in this example, the number of the second plate bodies 62 is set to two; the two second plate bodies 62 are arranged in sequence along the length direction of the smoke guide groove 4; the two lasers 1 are respectively arranged on the two second plate bodies 62.

[0046] Exemplarily, during implementation, the number of the above second plate bodies 62 is set to two, and the two second plate bodies 62 are arranged in sequence along the length direction of the smoke guide groove 4. The number of the lasers 1 is also set to two, and the two lasers 1 are respectively installed on the corresponding second plate bodies 62. When the discharging speed of the cigarette rod crimping device 3 is too high and a single laser 1 is difficult to meet the heating requirement, the two lasers 1 can be started to heat the gluing part on the cigarette rod 5 twice, so as to effectively ensure that even under high-speed production conditions, the glue can be fully cured, and further ensure the quality of the cigarette rod 5.

[0047] Example 6

[0048] As Figure 1 shown, on the basis of the above Example 5, in this example, the two second plate bodies 62 are oppositely arranged on the first plate body 61; the accommodating grooves 9 on the second plate bodies 62 are located on the sides of the two second plate bodies 62 away from each other.

[0049] Exemplarily, during implementation, the above two second plate bodies 62 are oppositely arranged on the first plate body 61, and the accommodating grooves 9 on the two second plate bodies 62 are located on the sides of the two second plate bodies 62 away from each other. The purpose of reducing the risk of mutual interference between the connectors on the two lasers 1 is achieved.

[0050] Example 7

[0051] As Figure 1 shown, on the basis of the above Example 6, in this example, one of the second plate bodies 62 is attached to the other second plate body 62.

[0052] Exemplarily, during implementation, one of the second plate bodies 62 is attached to the other second plate body 62. That is to say, the two second plate bodies 62 are in close contact with each other, thereby effectively shortening the distance between the two lasers 1. When both of the two lasers 1 are working, when the cigarette rod 5 slides from the heating area of the laser 1 close to the cigarette rod crimping device 3 into the heating area of the other laser 1, the continuity of the heating process is ensured, the temperature loss of the gluing part of the cigarette rod 5 is reduced, and the purpose of improving the glue curing efficiency and further improving the production efficiency is achieved.

[0053] Example 8

[0054] AsFigure 2 As shown, on the basis of any one of the above-mentioned Embodiments 1 to 7, in this embodiment, the laser 1 includes a plurality of laser heating units 101 distributed in an array.

[0055] Exemplarily, during implementation, the above-mentioned laser 1 includes laser heating units 101, and the plurality of laser heating units 101 are distributed in an array. The purpose is to be able to provide a wider and more uniform heating coverage, thereby ensuring the heating uniformity and efficiency of the glue application part of the cigarette rod 5 during the heating process.

[0056] Although the present invention has been described herein with reference to multiple illustrative embodiments of the present invention, it should be understood that those skilled in the art can design many other modifications and implementation manners, and these modifications and implementation manners will fall within the scope of the principles and spirit disclosed in this application. More specifically, within the scope of the present application disclosure, the drawings and the claims, various variations and improvements can be made to the components and / or the layout of the subject combination layout. In addition to the variations and improvements made to the components and / or the layout, other uses will also be obvious to those skilled in the art.

Claims

1. A laser heating device for tobacco rods, comprising a laser (1), characterized in that: Also includes: A bottom plate (2), the bottom plate (2) being used to be connected to the discharge port of the cigarette rod crimping device (3); a smoke guide groove (4) is provided on the upper plate surface of the bottom plate (2), the smoke guide groove (4) being used to correspond to the discharge port of the cigarette rod crimping device (3), and the notch of the smoke guide groove (4) corresponds to the glue coating portion on the cigarette rod (5); A connecting plate (6), wherein the connecting plate (6) is arranged on the bottom plate (2); The laser (1) is arranged on the connecting plate (6), the laser (1) corresponds to the notch of the smoke guide groove (4), and the laser (1) is used to heat the glue-coated part on the cigarette rod (5).

2. The laser heating device according to claim 1, characterized in that: The connecting plate (6) comprises a first plate body (61) and a second plate body (62); The first plate body (61) is arranged on the upper plate surface of the bottom plate (2); The first plate (61) extends along the length direction of the smoke guide groove (4); The second plate body (62) is connected to the first plate body (61), and the second plate body (62) is located directly above the smoke guide groove (4); The laser (1) is arranged on the second plate (62).

3. The laser heating device according to claim 2, characterized in that: The second plate (62) is provided with a mounting groove (7); The laser (1) is installed in the installation groove (7); The bottom of the installation groove (7) is provided with a light-transmitting hole (8); The light-transmitting hole (8) corresponds to the smoke-guiding groove (4).

4. The laser heating device according to claim 3, characterized in that: The groove wall of the installation groove (7) is provided with an accommodating groove (9); The accommodating groove (9) is arranged along the direction from the upper end of the groove wall of the installation groove (7) to the lower end of the groove wall of the installation groove (7); The connector of the laser (1) is located in the accommodation groove (9).

5. The laser heating device according to claim 4, characterized in that: The number of the second plates (62) is two; The two second plates (62) are arranged in sequence along the length direction of the smoke guide groove (4); The two lasers (1) are respectively arranged on the two second plates (62).

6. The laser heating device according to claim 5, characterized in that: The two second plates (62) are arranged opposite to each other on the first plate (61); The accommodating groove (9) on the second plate body (62) is located on a side of the two second plate bodies (62) that is away from each other.

7. The laser heating device according to claim 6, characterized in that: One of the second plates (62) is attached to another of the second plates (62).

8. The laser heating device according to any one of claims 1 to 7, characterized in that: The laser (1) comprises a plurality of laser heating units (101) distributed in an array.

Images