A fragrance thread tension control device

Abstract

The application provides a kind of incense line tension control device, belongs to tension control device technical field, including support, multiple guide wheels, drive motor, active friction roller and passive friction roller. Multiple guide wheels can be rotatably connected to the support. The drive motor is fixed on the support. The active friction roller is coaxially arranged with the output shaft of the drive motor and is fixedly connected. The passive friction roller is arranged in parallel with the active friction roller and is rotatably connected to the support. The passive friction roller is used to clamp the incense line with the active friction roller. The incense line tension control device provided by the application can avoid the problem of excessive tension of the incense line in the filter rod filament if the production speed of the filter rod is increased, as a part of the force of the original filter rod filament pulling the incense line is compensated by the active friction roller and the passive friction roller.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of tension control device, more particularly, to a flavor line tension control device. BACKGROUND

[0002] In the production of filter rods with flavor lines, the filter rods are produced by wrapping and pulling the flavor lines soaked with flavoring essence by filter rod tow, and then the filter rods reaching a certain length are cut off. The production speed of the existing filter rod production line cannot meet the capacity demand, and the production speed of the filter rod needs to be increased to increase the capacity. However, if the production speed of the filter rod is increased, the force of the filter rod tow pulling the flavor line will also be increased, so that the tension of the pulled flavor line will also be increased at the same time, and thus when the filter rod is cut off, the flavor line in the filter rod will be too large due to the excessive tension, resulting in excessive shrinkage of the flavor line and thus unqualified products. SUMMARY

[0003] The present application aims to provide a flavor line tension control device, which aims to solve the problem of excessive tension of the flavor line in the filter rod tow if the production speed of the filter rod is increased.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is to provide a flavor line tension control device, which comprises a support, a plurality of guide wheels, a driving motor, a driving friction roller and a driven friction roller. The plurality of guide wheels are rotatably connected to the support. The driving motor is fixedly arranged on the support. The driving friction roller is coaxially arranged with the output shaft of the driving motor and is fixedly connected thereto. The driven friction roller is arranged in parallel with the driving friction roller and is rotatably connected to the support, and the driven friction roller is used to clamp the flavor line in cooperation with the driving friction roller.

[0005] In a possible implementation manner, the flavor line tension control device further comprises a tension sensor. The tension sensor is fixedly arranged on the support. The flavor line between the driving friction roller and the driven friction roller passes through the tension sensor first.

[0006] In a possible implementation manner, the flavor line tension control device further comprises a support shaft, a follow-up adjusting member and an adjusting wheel. The support shaft is horizontally arranged and rotatably connected to the support. The follow-up adjusting member is fixedly sleeved on the support shaft. The adjusting wheel is rotatably connected to the follow-up adjusting member, and the rotation axis of the adjusting wheel is parallel to the support shaft. The flavor line between the driving friction roller and the driven friction roller passes through the adjusting wheel subsequently.

[0007] In a possible implementation manner, the flavor line tension control device further comprises a limiting rod. One end of the limiting rod is fixedly connected to the support, and the limiting rod is located on the rotation path of the follow-up adjusting member.

[0008] In a possible implementation, the follow-up adjusting member is provided with a plurality of first threaded holes, the first threaded holes are sequentially and spacedly arranged around the support shaft, and the tobacco thread tension control device further comprises a counterweight bolt. A screw rod of the counterweight bolt is capable of being arranged in and screwed with the first threaded holes.

[0009] In a possible implementation, the tobacco thread tension control device further comprises an encoder. The encoder is fixedly arranged on the support frame and connected with the support shaft.

[0010] In a possible implementation, the tobacco thread tension control device further comprises a fixing member, a tee joint, a first connecting pipe, a second connecting pipe, a connecting member and a hydraulic cylinder. The fixing member is fixedly arranged on the support frame. The tee joint is fixedly arranged on the fixing member, the tee joint has a first branch and a second branch arranged horizontally and a third branch arranged vertically, and the third branch is located above the first branch and the second branch. The first connecting pipe is sleeved on and fixedly connected with the first branch, one end of the first connecting pipe has a first end wall, and the first end wall is provided with a first threading hole. The second connecting pipe is sleeved on the second branch in a sliding manner, one end of the second connecting pipe has a second end wall, and the second end wall is provided with a second threading hole coaxially arranged with the first threading hole. The connecting member is fixedly arranged on the second connecting pipe. A cylinder body of the hydraulic cylinder is fixedly arranged on the fixing member, a piston rod of the hydraulic cylinder is capable of extending and retracting along a sliding direction of the second connecting pipe, and the piston rod of the hydraulic cylinder is fixedly connected with the connecting member.

[0011] In a possible implementation, the tobacco thread tension control device further comprises an injection hose and an injector. One end of the injection hose is sleeved and fixed on the third branch. An injection end of the injector is used to penetrate into the other end of the injection hose.

[0012] In a possible implementation, the tobacco thread tension control device further comprises a sliding assembly, a support plate, a take-up motor and a take-up wheel. The sliding assembly includes two groups, the sliding assembly includes a sliding rail and a sliding block, the sliding rail is arranged horizontally and fixedly connected with the support frame, a length direction of the sliding rail is perpendicular to a length direction of the second connecting pipe, and the sliding block is slidingly connected to the sliding rail. The support plate is arranged horizontally and fixedly connected with the two sliding blocks. The take-up motor is fixedly arranged on the support plate. The take-up wheel is sleeved and fixed on an output shaft of the take-up motor. Wherein, the sliding of the sliding block makes the take-up motor have a first station and a second station, when the take-up motor is in the first station, the rotation of the take-up wheel makes the take-up wheel wind up the tobacco thread passing through the second threading hole, and when the take-up motor is in the second station, the take-up wheel can avoid the moving path of the tobacco thread.

[0013] In one possible implementation, the slide rail has two second threaded holes, and the sliding assembly further includes a positioning element and a positioning bolt. The positioning element is fixedly connected to the slider. The thread of the positioning bolt passes through the positioning element. Specifically, when the take-up motor is in the first position, the thread of the positioning bolt is threaded into one of the second threaded holes; when the take-up motor is in the second position, the thread of the positioning bolt is threaded into the other second threaded hole.

[0014] In this embodiment, the output shaft of the drive motor drives the active friction roller to rotate, thereby causing the active and passive friction rollers to pull the incense thread held by them forward. The filter rod bundle wraps around and pulls the incense thread conveyed by the active and passive friction rollers. This is equivalent to a portion of the force that originally pulled the incense thread by the filter rod bundle being compensated by the active and passive friction rollers. Thus, even if the production speed of the filter rod is increased, the force that pulls the incense thread by the filter rod bundle does not need to increase, thereby avoiding the problem of excessive tension of the incense thread in the filter rod bundle if the production speed of the filter rod is increased. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a first isometric structural schematic diagram of a fragrance thread tension control device provided in the first embodiment of the present invention;

[0017] Figure 2 for Figure 1 A magnified structural diagram of part A in the diagram;

[0018] Figure 3 for Figure 1 A magnified structural diagram of part B in the diagram;

[0019] Figure 4 for Figure 1 A magnified structural diagram of a portion of C in the diagram;

[0020] Figure 5 This is a second isometric structural schematic diagram of a fragrance thread tension control device provided in the first embodiment of the present invention;

[0021] Figure 6 for Figure 5 A magnified schematic diagram of a local D section;

[0022] Figure 7 forFigure 5 Enlarged structural schematic view of local part E in

[0023] Figure 8 Axonometric structural schematic view of fixed part, three-way pipe, first connecting pipe and second connecting pipe, connecting part and hydraulic cylinder after connection in a fragrance line tension control device provided by the first embodiment of the present application;

[0024] Figure 9 Axonometric structural schematic view of local part F in Figure 8

[0025] Figure 10 Axonometric structural schematic view of local part G in Figure 8

[0026] Figure 11 Axonometric structural schematic view of a fragrance line tension control device provided by the second embodiment of the present application;

[0027] Figure 12 Axonometric structural schematic view of local part H in Figure 11

[0028] Figure 13 Axonometric structural schematic view of connecting crankshaft 250, push-up sleeve 260, mounting part 270, first C-shaped clamp 280, second C-shaped clamp 290, push shaft 300, push part 310, reset torsional spring 320 after connection in a fragrance line tension control device provided by the second embodiment of the present application;

[0029] Figure 14 Axonometric structural schematic view of connecting crankshaft 250, first C-shaped clamp 280, push shaft 300, push part 310, reset torsional spring 320 after connection in a fragrance line tension control device provided by the second embodiment of the present application;

[0030] Figure 15 Axonometric structural schematic view of push-up sleeve 260 in a fragrance line tension control device provided by the second embodiment of the present application.

[0031] ​​​In the figure: 1, support; 2, guide wheel; 3, drive motor; 4, active friction roller; 5, passive friction roller; 6, tension sensor; 7, support shaft; 8, follow-up adjusting part; 81, first threaded hole; 9, adjusting wheel; 10, counterweight bolt; 110, limiting rod; 120, encoder; 130, fixing part; 140, three-way pipe; 1401, first branch; 1402, second branch; 1403, third branch; 150, first connecting pipe; 1501, first end wall; 15011, first threading hole; 160, second connecting pipe; 1601, second end wall; 16011, second threading hole; 170, connecting part; 180, hydraulic cylinder; 190, injection hose; 200, injector; 210, sliding assembly; 2101, sliding rail; 21011, second threaded hole; 2102, sliding block; 2103, positioning part; 2104, positioning bolt; 220, support plate; 230, take-up motor; 240, take-up wheel; 250, connecting crankshaft; 2501, connecting section; 2502, connecting external thread; 260, push-on sleeve; 270, mounting part; 280, first C-shaped clamp; 290, second C-shaped clamp; 300, dial shaft; 310, dial part; 320, return torsional spring; 330, pull bolt. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application and not to limit the present application. It should be further understood that the drawings and embodiments of the present application mainly describe the concept of the present application, and on the basis of the concept, the specific forms and settings of some connection relationships, position relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be completely described, but those skilled in the art can realize the above-mentioned specific forms and settings in a well-known manner on the premise of understanding the concept of the present application. When an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. The terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. The terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, and the meaning of "several" is one or more, unless otherwise explicitly specified.

[0033] Please refer to Figure 1 , Figure 2 and Figure 5 , a kind of fragrance line tension control device provided by the present application will be described. The kind of fragrance line tension control device, including support 1, multiple guide wheels 2, drive motor 3, active friction roller 4 and passive friction roller 5. Multiple guide wheels 2 can be rotatably connected to support 1. Drive motor 3 is fixed on support 1. Active friction roller 4 is coaxially arranged with the output shaft of drive motor 3 and is fixedly connected. Passive friction roller 5 is arranged in parallel with active friction roller 4 and is rotatably connected to support 1, and passive friction roller 5 is used to hold fragrance line with active friction roller 4.

[0034] Compared with the prior art, the output shaft of the driving motor 3 drives the driving friction roller 4 to rotate, so that the driving friction roller 4 and the passive friction roller 5 pull the filter rod tow to forwardly convey the filter rod tow, and the filter rod tow wraps and pulls the filter rod tow conveyed by the driving friction roller 4 and the passive friction roller 5. It is equivalent that a part of the force of the filter rod tow pulling the filter rod is compensated by the driving friction roller 4 and the passive friction roller 5. Therefore, even if the production speed of the filter rod is increased, the force of the filter rod tow pulling the filter rod can not be increased, and the problem of excessive tension of the filter rod tow when the production speed of the filter rod is increased can be avoided.

[0035] In the embodiment, the filter tow moves through the plurality of guide wheels 2, and the plurality of guide wheels 2 can define the moving path of the filter tow.

[0036] As one of the connection modes of the passive friction roller 5 and the support 1, refer to Figures 11 to 15The support 1 is provided with a connecting threaded hole, and the incense thread tension control device further comprises a connecting crankshaft 250, a pushing sleeve 260, a mounting member 270, a first C-shaped clamp 280, a second C-shaped clamp 290, a driving shaft 300, a driving member 310 and a reset torsion spring 320. The connecting crankshaft 250 has a radially protruding connecting section 2501 in the middle, and the connecting section 2501 is arranged in parallel with the passive friction roller 5. The connecting crankshaft 250 is provided with a connecting external thread 2502, and the connecting crankshaft 250 is threadedly connected to the connecting threaded hole through the connecting external thread 2502. The pushing sleeve 260 is sleeved on the connecting crankshaft 250 and is provided with a connecting internal thread threadedly connected with the connecting external thread 2502. The pushing sleeve 260 is used for pressing the support 1, so as to limit the rotation of the connecting crankshaft 250. The mounting member 270 is rotatably sleeved on the connecting section 2501, and the passive friction roller 5 is rotatably connected to the mounting member 270. The rotation of the mounting member 270 enables the passive friction roller 5 to approach or move away from the driving friction roller 4. The first C-shaped clamp 280 and the second C-shaped clamp 290 are respectively sleeved and clamped on the connecting crankshaft 250 and the pushing sleeve 260. The first C-shaped clamp 280 and the second C-shaped clamp 290 are respectively located on the two sides of the mounting member 270, so as to limit the mounting member 270. The driving shaft 300 is parallel to the passive friction roller 5 and is fixedly connected with the mounting member 270. The driving member 310 is fixedly arranged on the side of the driving shaft 300. The reset torsion spring 320 is sleeved on the connecting crankshaft 250. The reset torsion spring 320 respectively abuts against the first C-shaped clamp 280 and the driving member 310. The rebound force of the reset torsion spring 320 pushes the mounting member 270 through the driving member 310 and the driving shaft 300, so that the passive friction roller 5 can approach the driving friction roller 4 through the rotation of the mounting member 270. Before the device is used, the second C-shaped clamp 290 is loosened to push the pushing sleeve 260, and then the pushing sleeve 260 is rotated to move away from the support 1. Subsequently, the connecting crankshaft 250 is driven to rotate, so that the connecting section 2501 is adjusted to a suitable position, that is, the rotation axis of the mounting member 270 is adjusted to a suitable position. Finally, the pushing sleeve 260 is pressed against the support 1, and the second C-shaped clamp 290 is clamped against the pushing sleeve 260 at the suitable position. Before the incense thread is passed between the passive friction roller 5 and the driving friction roller 4, the mounting member 270 is first driven to rotate, so that the passive friction roller 5 moves away from the driving friction roller 4. After the incense thread is passed between the passive friction roller 5 and the driving friction roller 4, the mounting member 270 is rotated under the elastic force of the reset torsion spring 320, so that the passive friction roller 5 approaches the driving friction roller 4 and cooperates with the driving friction roller 4 to clamp the incense thread. Further, the driving shaft 300 can be further threadedly connected with a pulling bolt 330 for pulling the mounting member 270 to rotate.

[0037] In some embodiments, referring to Figure 1The tension control device for the aroma thread further comprises a tension sensor 6. The tension sensor 6 is fixed on the support 1. The aroma thread between the active friction roller 4 and the passive friction roller 5 passes through the tension sensor 6. The tension sensor 6 can sense the tension of the aroma thread caused by the active friction roller 4 and the passive friction roller 5. When the tension of the aroma thread is too large, the speed of the aroma thread pulled by the active friction roller 4 and the passive friction roller 5 should be adjusted, that is, the output speed of the driving motor 3 should be adjusted, so as to avoid the aroma thread from being broken due to the too large tension. In addition, the value of the tension sensor 6 can be used to determine whether the aroma thread is broken.

[0038] In some embodiments, referring to Figure 1 and Figure 3 , the tension control device for the aroma thread further comprises a support shaft 7, a follow-up adjusting member 8 and an adjusting wheel 9. The support shaft 7 is horizontally arranged and rotatably connected to the support 1. The follow-up adjusting member 8 is sleeved and fixed on the support shaft 7. The adjusting wheel 9 is rotatably connected to the follow-up adjusting member 8, and the rotation axis of the adjusting wheel 9 is parallel to the support shaft 7. The aroma thread between the active friction roller 4 and the passive friction roller 5 passes through the adjusting wheel 9. When the force of the filter rod tow pulling the aroma thread changes, the force of the aroma thread acting on the adjusting wheel 9 will also change, so that the support shaft 7 rotates. Therefore, the size of the force of the filter rod tow pulling the aroma thread can be determined according to the rotation angle of the support shaft 7. In this embodiment, the active friction roller 4 is parallel to the support shaft 7. When the size of the force of the filter rod tow pulling the aroma thread changes, the speed of the driving motor 3 can be changed accordingly to adjust the force of the filter rod tow pulling the aroma thread.

[0039] In some embodiments, referring to Figure 3 , the tension control device for the aroma thread further comprises a limiting rod 110. One end of the limiting rod 110 is fixedly connected to the support 1, and the limiting rod 110 is located on the rotation path of the follow-up adjusting member 8. The limiting of the follow-up adjusting member 8 by the limiting rod 110 can support the rotation range of the support shaft 7, so as to avoid the follow-up adjusting member 8 from being overturned.

[0040] In some embodiments, referring to Figure 3 , the follow-up adjusting member 8 is provided with a plurality of first threaded holes 81, the plurality of first threaded holes 81 are sequentially and spacedly arranged around the support shaft 7, and the tension control device for the aroma thread further comprises a counterweight bolt 10. The shank of the counterweight bolt 10 can be inserted into and threadedly connected with the first threaded hole 81. By installing the counterweight bolt 10 on the follow-up adjusting member 8, the rotation amplitude of the support shaft 7 can be prevented from changing too much when the force of the filter rod tow pulling the aroma thread changes. During the debugging of the device, different numbers of counterweight bolts 10 can be installed on the follow-up adjusting member 8 until the rotation amplitude of the support shaft 7 is appropriate. For example, referring to Figure 1A plurality of first screw holes 81 and an adjusting wheel 9 are respectively located on both sides of the support shaft 7, and the plurality of first screw holes 81 are located below the adjusting wheel 9. The axis of the first screw holes 81 is parallel to the support shaft 7.

[0041] In some embodiments, referring to Figure 6 The thread tension control device further comprises an encoder 120. The encoder 120 is fixedly arranged on the bracket 1 and connected with the support shaft 7. The angular displacement of the rotation of the support shaft 7 can be read by the encoder 120.

[0042] Further, a control system can be further included, which is electrically connected with the driving motor 3, the tension sensor 6 and the encoder 120. The control system receives the electrical signal of the tension sensor 6, and judges whether to change the speed of the driving motor 3 according to the electrical signal of the tension sensor 6. The control system can also calculate the force of the filter tow pulling the thread according to the electrical signal provided by the encoder 120, and adjust the speed of the driving motor 3 according to the result, that is, adjust the speed of the thread delivered by the driving friction roller 4 and the passive friction roller 5.

[0043] In some embodiments, referring to Figure 1 , Figure 4 , Figure 8 , Figure 9 and Figure 10The fragrance thread tension control device further comprises a fixing member 130, a tee pipe 140, a first connecting pipe 150, a second connecting pipe 160, a connecting member 170 and a hydraulic cylinder 180. The fixing member 130 is fixedly arranged on the support 1. The tee pipe 140 is fixedly arranged on the fixing member 130, and the tee pipe 140 has a horizontally arranged first branch 1401 and a second branch 1402 and a vertically arranged third branch 1403 which is above the first branch 1401 and the second branch 1402. The first connecting pipe 150 is sleeved on the first branch 1401 and fixedly connected with the first branch 1401, and one end of the first connecting pipe 150 has a first end wall 1501 which is provided with a first thread hole 15011. The second connecting pipe 160 is sleeved on the second branch 1402, and one end of the second connecting pipe 160 has a second end wall 1601 which is provided with a second thread hole 16011 coaxially arranged with the first thread hole 15011. The connecting member 170 is fixedly arranged on the second connecting pipe 160. The cylinder body of the hydraulic cylinder 180 is fixedly arranged on the fixing member 130, the piston rod of the hydraulic cylinder 180 can be extended and retracted along the sliding direction of the second connecting pipe 160, and the piston rod of the hydraulic cylinder 180 is fixedly connected with the connecting member 170. The extension and retraction of the piston rod of the hydraulic cylinder 180 can drive the second connecting pipe 160 to slide through the connecting member 170. The fragrance thread is threaded into the first connecting pipe 150 through the first thread hole 15011, then threaded into the first branch 1401, the second branch 1402 and the second connecting pipe 160, and threaded out of the second connecting pipe 160 through the second thread hole 16011, and then the liquid fragrance is injected into the first branch 1401, the second branch 1402, the first connecting pipe 150 and the second connecting pipe 160 through the third branch 1403, so that the fragrance thread between the first thread hole 15011 and the second thread hole 16011 is soaked with the fragrance, and then the fragrance thread soaked with the fragrance is wrapped by the filter rod filament bundle and pulled. When the speed of the filter rod filament bundle pulling the fragrance thread becomes fast, the piston rod of the hydraulic cylinder 180 drives the second connecting pipe 160 to slide, so that the distance between the second thread hole 16011 and the first thread hole 15011 becomes larger, and then the fragrance thread has enough time to soak the fragrance. Of course, the time for the fragrance thread to soak the fragrance cannot be too long, so as to prevent the fragrance from exceeding the standard.

[0044] In the embodiment, the diameters of the first thread hole 15011 and the second thread hole 16011 match the diameter of the fragrance thread.

[0045] In some embodiments, referring to Figure 4 The fragrance thread tension control device further comprises an injection hose 190 and an injector 200. One end of the injection hose 190 is sleeved and fixed outside the third branch 1403. The injection end of the injector 200 is used to thread into the other end of the injection hose 190. The injector 200 injects the fragrance into the third branch 1403 through the injection hose 190.

[0046] In some embodiments, referring to Figure 1 , Figure 5 and Figure 7 , the incense line tension control device further comprises a sliding assembly 210, a support plate 220, a take-up motor 230 and a take-up wheel 240. The sliding assembly 210 is in two groups, and the sliding assembly 210 comprises a sliding rail 2101 and a sliding block 2102. The sliding rail 2101 is horizontally arranged and fixedly connected with the support 1. The length direction of the sliding rail 2101 is perpendicular to the length direction of the second connecting pipe 160. The sliding block 2102 is slidingly connected to the sliding rail 2101. The support plate 220 is horizontally arranged and fixedly connected with the two sliding blocks 2102. The take-up motor 230 is fixedly arranged on the support plate 220. The take-up wheel 240 is sleeved and fixedly arranged on the output shaft of the take-up motor 230. The sliding of the sliding block 2102 enables the take-up motor 230 to have a first working position and a second working position. When the take-up motor 230 is in the first working position, the rotation of the take-up wheel 240 enables the take-up wheel 240 to wind up the incense line passing through the second line hole 16011. When the take-up motor 230 is in the second working position, the take-up wheel 240 can avoid the moving path of the incense line. The take-up motor 230 is connected with the sliding block 2102 through the support plate 220, so that the take-up motor 230 can slide with the sliding block 2102. After the second connecting pipe 160 slides to a new position, the take-up motor 230 is in the first working position. The output shaft of the take-up motor 230 drives the take-up wheel 240 to rotate, so that the take-up wheel 240 winds up the incense line passing through the second line hole 16011, thereby simulating the incense line being pulled by the filter rod tow, and further judging whether the rotation speed of the driving motor 3 is appropriate and whether the incense line soaked with the incense is qualified. If the rotation speed of the driving motor 3 is appropriate and the incense line soaked with the incense is qualified, the take-up motor 230 is driven to the second working position, and then the filter rod tow is formally wrapped and pulls the incense line. In this embodiment, the take-up motor 230 is also electrically connected with the control system.

[0047] In some embodiments, referring to Figure 7 , the sliding rail 2101 is provided with two second threaded holes 21011. The sliding assembly 210 further comprises a positioning member 2103 and a positioning bolt 2104. The positioning member 2103 is fixedly connected with the sliding block 2102. The screw rod of the positioning bolt 2104 penetrates the positioning member 2103. When the take-up motor 230 is in the first working position, the screw rod of the positioning bolt 2104 is threadedly connected in one of the second threaded holes 21011. When the take-up motor 230 is in the second working position, the screw rod of the positioning bolt 2104 is threadedly connected in the other second threaded hole 21011. The threaded connection of the screw rod of the positioning bolt 2104 and the second threaded hole 21011 can limit the sliding of the sliding block 2102, so that the take-up motor 230 remains in the first working position or the second working position.

[0048] The above merely describes preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device for controlling the tension of incense thread, characterized in that, The device comprises a support, a plurality of guide wheels rotatably connected to the support, a driving motor fixed to the support, a driving friction roller coaxially arranged with the output shaft of the driving motor and fixedly connected to the driving motor, a passive friction roller arranged in parallel with the driving friction roller and rotatably connected to the support, the passive friction roller being used for clamping the incense wire together with the driving friction roller, a fixing member fixed to the support, a tee joint fixed to the fixing member, the tee joint having a horizontally arranged first branch and a second branch and a vertically arranged third branch, the third branch being located above the first branch and the second branch, a first connecting pipe sleeved on the first branch and fixedly connected to the first branch, one end of the first connecting pipe having a first end wall, the first end wall being provided with a first threading hole, a second connecting pipe slidably sleeved on the second branch, one end of the second connecting pipe having a second end wall, the second end wall being provided with a second threading hole coaxially arranged with the first threading hole, a connecting member fixed to the second connecting pipe, a hydraulic cylinder, the cylinder body of the hydraulic cylinder being fixed to the fixing member, the piston rod of the hydraulic cylinder being capable of extending and retracting along the sliding direction of the second connecting pipe, the piston rod of the hydraulic cylinder being fixedly connected to the connecting member, an injection hose one end of which is fixedly sleeved on the third branch, and a syringe, the injection end of the syringe being used for penetrating into the other end of the injection hose. The device further comprises a tension sensor fixed to the support, wherein the incense wire between the driving friction roller and the passive friction roller passes through the tension sensor. The device further comprises a support shaft horizontally arranged and rotatably connected to the support, a follow-up adjusting member fixedly sleeved on the support shaft, and an adjusting wheel rotatably connected to the follow-up adjusting member, the rotation axis of the adjusting wheel being parallel to the support shaft. The device further comprises a limiting rod one end of which is fixedly connected to the support, the limiting rod being located on the rotation path of the follow-up adjusting member. The follow-up adjusting member is provided with a plurality of first threaded holes, the first threaded holes being sequentially and spacedly arranged around the support shaft, and the device further comprises a plurality of adjusting screws, one end of each of the adjusting screws being fixedly screwed into one of the first threaded holes, the other end of each of the adjusting screws being provided with a second threaded hole, and a plurality of adjusting wires, one end of each of the adjusting wires being fixedly screwed into one of the second threaded holes, the other end of each of the adjusting wires being fixedly connected to the incense wire. The device further comprises a plurality of limiting members, one end of each of the limiting members being fixedly connected to the support, the limiting members being located on the rotation path of the follow-up adjusting member. The device further comprises a plurality of limiting members, one end of each of the limiting members being fixedly connected to the support, the limiting members being located on the rotation path of the follow-up adjusting member. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. A scent thread tension control device as defined in claim 1, wherein ​ ​ ​ 3. A thread tension control device for a fragrance cartridge as defined in claim 2, wherein ​ ​ ​ ​ ​ 4. A thread tension control device for a fragrance cartridge as defined in claim 3, wherein ​ ​ 5. A thread tension control device for a fragrance cartridge as defined in claim 4, wherein ​ A counterweight bolt, a screw rod of which is capable of being arranged in the first threaded hole and being threadedly connected with the first threaded hole.

6. A scent thread tension control device as defined in claim 3, wherein, Further comprising: An encoder, which is fixed on the bracket and connected with the support shaft.

7. A scent string tension control device as defined in claim 1, wherein, Two second threaded holes are arranged on the slide rail, and the slide assembly further comprises: A positioning member, which is fixedly connected with the slide block; A positioning bolt, a screw rod of which is arranged in the positioning member; When the take-up motor is in the first station, the screw rod of the positioning bolt is threadedly connected in one of the second threaded holes; when the take-up motor is in the second station, the screw rod of the positioning bolt is threadedly connected in the other second threaded hole.

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