Drawstring conveying device and cigarette case packaging machine

Abstract

The invention belongs to the technical field of cigarette packing machines, and discloses a drawstring conveying device and a cigarette case packing machine. The drawstring conveying device is used for conveying a drawstring and conveying the drawstring and a strip in a transparent attaching mode and comprises a mounting assembly, a drawstring rotating shaft, a magnetic control assembly and a linkage assembly. The drawstring rotating shaft is rotationally connected to the mounting assembly, a drawstring winding drum is coaxially fixed to the drawstring rotating shaft, the magnetic control assembly comprises a rotating part and a magnetic control part, the rotating part is coaxially fixed to the drawstring rotating shaft, the magnetic control part is movably connected to the mounting assembly, and the magnetic control part can be close to or away from the rotating part so as to change the rotating resistance of the drawstring rotating shaft; the linkage assembly is movably connected to the installation assembly, a first guide part is arranged at the first end of the linkage assembly, a pressing part is arranged at the second end of the linkage assembly, the pull belt can pass through the first guide part and drive the first guide part to move, and the pressing part and the first guide part move synchronously so that the pressing part can abut against the magnetic control part. Friction abrasion in the drawstring conveying process is reduced, and the drawstring conveying stability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarette packaging machines, and particularly relates to a tape conveying device and a cigarette case packaging machine. Background Art

[0002] During the cigarette case packaging process, before the cigarette case is wrapped, the transparent paper supply device and the tape supply device will synchronously transport the tape and the transparent paper and paste and compound them at the set position, and then transport them to the next process for packaging the cigarettes. Since the cigarette cases are arranged at intervals, during the packaging process, the tape will be intermittently conveyed, causing the tape to cycle through four states: acceleration, constant speed, deceleration, and shutdown. This results in large speed fluctuations of the tape during the packaging process. Due to the poor plasticity of the tape, the tape is easily stretched or even broken during the acceleration to constant speed process because of the slow start, and is easily slackened during the deceleration to shutdown process because of the slow shutdown, making the conveyance of the tape unstable.

[0003] In the prior art, usually, the tape reel is installed on the frame, and a tape reel braking mechanism is provided on the frame. The tape reel braking mechanism is hinged to the frame. One end of the tape reel braking mechanism is provided with a brake pad, and the brake pad can abut against the tape reel. The other end of the tape reel braking mechanism is provided with a tape guide roller. The tape extending from the tape reel passes upward after passing under the tape guide roller. A spring is connected between the brake pad and the hinge point where the tape reel braking mechanism is hinged to the frame, and the other end of the spring is fixedly connected to the frame. When packaging, pulling the tape extending from the tape guide roller in the upward direction, the tape will apply an upward force to the tape guide roller under the action of the pulling force and drive the tape guide roller to move upward in the vertical direction. At this time, the end provided with the brake pad will move downward in the vertical direction to disengage from the abutment with the tape reel. At this time, the tape can drive the tape reel to rotate. After the tape reel starts to rotate, the brake pad is in abutment with the tape reel and does not brake the tape reel. The tape reel can rotate around the axis under the drive of the tape and is also stopped by the frictional force of the abutment of the brake pad. The tape will neither be slack nor be broken. However, during the rotation of the tape reel, the brake pad contacts the tape reel, and the long-term rotation will cause wear of the brake pad, resulting in the tape being loose during the packaging process and being unfavorable for the smooth operation of the packaging process. Summary of the Invention

[0004] The purpose of the present invention is to provide a tape conveying device and a cigarette case packaging machine, which can avoid the wear of the rotating parts and the magnetic control parts caused by the long-term rotation of the tape rotating shaft, reduce the frictional wear of the rotating parts during the tape conveying process, and improve the stability of the tape conveying.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A drawstring conveying device for conveying a drawstring, wherein the drawstring is conveyed in transparent lamination, comprising:

[0007] An installation component;

[0008] A drawstring rotating shaft rotatably connected to the installation component, and a drawstring reel is coaxially fixed to the drawstring rotating shaft;

[0009] A magnetic control component, the magnetic control component includes a rotating member and a magnetic control element, the rotating member is coaxially fixed to the drawstring rotating shaft, the magnetic control element is movably connected to the installation component, and the magnetic control element can approach or move away from the rotating member to change the rotational resistance of the drawstring rotating shaft;

[0010] A linkage component, the linkage component is movably connected to the installation component, a first guiding member is arranged at a first end of the linkage component, a pressing member is arranged at a second end of the linkage component, the drawstring can pass through the first guiding member and drive the first guiding member to move, and the pressing member moves synchronously with the first guiding member so that the pressing member can abut against the magnetic control element.

[0011] Preferably, the magnetic control component further includes:

[0012] A limiting sleeve fixedly connected to the installation component;

[0013] A first elastic member, one end of the first elastic member abuts or is connected to the magnetic control element, and the other end of the first elastic member abuts or is connected to the limiting sleeve.

[0014] Preferably, the linkage component includes:

[0015] A first swinging member rotatably connected to the installation component, and the first guiding member is arranged at a first end of the first swinging member;

[0016] An adjusting member connected to the first swinging member;

[0017] A driven member movably connected to the installation component, the adjusting member can abut against a first end of the driven member, and the pressing member is arranged at a second end of the driven member.

[0018] Preferably, the drawstring rotating shaft includes:

[0019] A rotating shaft body rotatably connected to the installation component, the rotating member is coaxially fixed to the rotating shaft body, and the drawstring reel is sleeved outside the rotating shaft body;

[0020] An elastic element fixedly installed on the rotating shaft body, and the elastic element can abut against the inner wall of the drawstring reel.

[0021] Preferably, the strap conveying device further comprises:

[0022] A buffer assembly, which is movably connected to the mounting assembly, the strap passes through the buffer assembly, and the buffer assembly can swing relative to the mounting assembly to buffer the strap.

[0023] Preferably, the buffer assembly comprises:

[0024] A buffer rotating shaft, the first end of the buffer rotating shaft is fixedly connected to the mounting assembly, and the second end of the buffer rotating shaft is rotatably connected with a first guiding member;

[0025] A second swinging member, which is rotatably connected to the buffer rotating shaft;

[0026] A second guiding member, which is rotatably connected to the second end of the second swinging member.

[0027] Preferably, the buffer assembly further comprises:

[0028] A locking member, which is connected to the first end of the buffer rotating shaft;

[0029] A second elastic member, which is coaxially sleeved on the buffer rotating shaft, one end of the second elastic member can abut against the second swinging member, and the other end can abut against the locking member.

[0030] Preferably, the strap conveying device further comprises:

[0031] An auxiliary conveying assembly, which is rotatably connected to the mounting assembly, and the auxiliary conveying assembly contacts the strap to convey the strap.

[0032] Preferably, the auxiliary conveying assembly comprises:

[0033] A driving member, which is connected to the mounting assembly;

[0034] An auxiliary conveying member, the first end of the auxiliary conveying member is in transmission connection with the output end of the driving member, the driving member rotates to drive the auxiliary conveying member to rotate, and the second end of the auxiliary conveying member is in frictional contact with the strap.

[0035] A cigarette case packing machine, comprising a cigarette case packing machine body and the strap conveying device as described above, and the strap conveying device is arranged on the cigarette case packing machine body.

[0036] Advantages of the present invention:

[0037] The present invention provides a strap conveying device and a cigarette case packaging machine. The strap conveying device is used to convey a strap, and the strap is transparently and adhesively conveyed with a strip. It includes a mounting assembly, a strap rotating shaft, a magnetic control assembly, and a linkage assembly. Among them, the strap rotating shaft is rotatably connected to the mounting assembly, a strap reel is coaxially fixed to the strap rotating shaft, the magnetic control assembly includes a rotating member and a magnetic control member, the rotating member is coaxially fixed to the strap rotating shaft, the magnetic control member is movably connected to the mounting assembly, and the magnetic control member can approach or move away from the rotating member to change the rotational resistance of the strap rotating shaft. The linkage assembly is movably connected to the mounting assembly. A first guiding member is provided at the first end of the linkage assembly, and a pressing member is provided at the second end of the linkage assembly. The strap can pass through the first guiding member and drive the first guiding member to move, and the pressing member moves synchronously with the first guiding member so that the pressing member abuts against the magnetic control member.

[0038] When starting to convey the strap and the strip transparently, pull the strap extending from the first guiding member. The strap will apply a force to the first guiding member and drive the first guiding member to move under the tensile force. At the same time, the pressing member at the second end of the adjusting assembly moves synchronously and abuts against the magnetic control member. As the strap moves, the pressing member always abuts against the magnetic control member, causing the magnetic control member to approach the rotating member, increasing the resistance of the magnetic control member to the rotating member, and further increasing the rotational resistance of the strap rotating shaft, so that the strap conveyed from the strap reel gradually tightens. When the strap and the strip are conveyed at a constant speed, the tensile force on the strap remains unchanged, and the distance between the magnetic control member and the rotating member remains unchanged. When the strap and the strip are conveyed at a reduced speed, the tensile force on the strap decreases, the pressing member fits against the magnetic control member, and the magnetic control member moves relatively away from the rotating member, reducing the resistance of the magnetic control member to the rotating member, and further reducing the rotational resistance of the strap rotating shaft. During the above process, during the conveying of the strap, the magnetic control member and the rotating member use a non-contact braking method, avoiding the wear of the rotating member and the magnetic control member caused by the long-term rotation of the strap rotating shaft, reducing the frictional wear of the rotating member during the strap conveying process, and improving the stability of the strap conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is the first schematic structural view of the magnetic control assembly of the strap conveying device provided by an embodiment of the present invention;

[0040] Figure 2 is the second schematic structural view of the magnetic control assembly of the strap conveying device provided by an embodiment of the present invention;

[0041] Figure 3 is the third schematic structural view of the magnetic control assembly of the strap conveying device provided by an embodiment of the present invention;

[0042] Figure 4 is a schematic view of the rotating member of the strap conveying device provided by an embodiment of the present invention;

[0043] Figure 5It is a schematic diagram of the pull - belt rotating shaft of the pull - belt conveying device provided by an embodiment of the present invention;

[0044] Figure 6 It is a schematic diagram of the buffer assembly of the pull - belt conveying device provided by an embodiment of the present invention;

[0045] Figure 7 It is the first schematic diagram of the guiding assembly of the pull - belt conveying device provided by an embodiment of the present invention;

[0046] Figure 8 It is a schematic diagram of the pull - belt conveying route of the pull - belt conveying device provided by an embodiment of the present invention;

[0047] Figure 9 It is the second schematic diagram of the guiding assembly of the pull - belt conveying device provided by an embodiment of the present invention;

[0048] Figure 10 It is the third schematic diagram of the guiding assembly of the pull - belt conveying device provided by an embodiment of the present invention;

[0049] Figure 11 It is a schematic diagram of the broken - belt detection assembly of the pull - belt conveying device provided by an embodiment of the present invention.

[0050] In the figure:

[0051] 1. Mounting assembly;

[0052] 2. Pull - belt rotating shaft; 21. Rotating shaft body; 22. Elastic element; 23. Fixing part;

[0053] 3. Magneto - control assembly; 31. Rotating part; 311. Rotating main body; 312. First magnetic part; 313. Through hole; 32. Magneto - control part; 321. Magneto - control main body; 322. Second magnetic part; 33. First elastic part; 34. Limiting sleeve; 35. Connecting part;

[0054] 4. Linkage assembly; 41. First swinging part; 411. Adjusting hole; 42. Adjusting part; 43. Driven part; 431. Rolling part; 44. Pressing part; 45. First counterweight;

[0055] 5. Guiding assembly; 51. First guiding part; 511. First guiding main body; 512. First inclined part; 52. Second guiding part; 53. Third guiding part; 531. Third guiding main body; 532. Second inclined part; 533. Third elastic part; 534. Sliding sleeve; 54. Fourth guiding part; 55. Fifth guiding part; 551. Fifth guiding main body; 552. Fifth elastic part; 553. Buffer sleeve;

[0056] 6. Buffer assembly; 61. First guiding member; 62. Second swinging member; 621. Limit hole; 63. Limiting member; 64. Second guiding member; 65. Second elastic member; 66. Locking restriction member; 67. Locking member; 68. Handle; 69. Buffer rotating shaft;

[0057] 7. Auxiliary conveying assembly; 71. Driving member; 72. Transmission member; 73. Auxiliary conveying member; 74. Sixth guiding member; 75. Seventh guiding member;

[0058] 8. Belt breakage detection assembly; 81. Belt pulling contact head; 82. Detector; 83. Detection head; 84. Linking rod; 85. Fixed rod; 86. Second counterweight member;

[0059] 91. First redirecting member; 92. Second redirecting member. Detailed implementation manners

[0060] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only parts related to the present invention rather than all structures are shown in the drawings.

[0061] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above and over", and "on the top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below and under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0063] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", etc. are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0064] This embodiment provides a tape conveying device. As Figures 1 - 3 shown, this tape conveying device is used to convey a tape. The tape is transparently adhered and conveyed with a strip, and includes a mounting assembly 1, a tape rotating shaft 2, a magnetic control assembly 3, and a linkage assembly 4. Among them, the tape rotating shaft 2 is rotatably connected to the mounting assembly 1. A tape reel is coaxially fixed to the tape rotating shaft 2. The magnetic control assembly 3 includes a rotating member 31 and a magnetic control member 32. The rotating member 31 is coaxially fixed to the tape rotating shaft 2. The magnetic control member 32 is movably connected to the mounting assembly 1. The magnetic control member 32 can approach or move away from the rotating member 31 to change the rotational resistance of the tape rotating shaft 2. The linkage assembly 4 is movably connected to the mounting assembly 1. A first guiding member 51 is provided at the first end of the linkage assembly 4. A pressing member 44 is provided at the second end of the linkage assembly 4. The tape can pass through the first guiding member 51 and drive the first guiding member 51 to move. And the pressing member 44 moves synchronously with the first guiding member 51 so that the pressing member 44 can abut against the magnetic control member 32.

[0065] When starting to convey the draw tape and the strip of transparency, drag the draw tape extending from the first guide member 51. The draw tape will apply a force to the first guide member 51 under the tensile force and drive the first guide member 51 to move. At the same time, the pressing member 44 at the second end of the linkage assembly 4 moves synchronously and abuts against the magnetic control member 32. As the draw tape moves, the pressing member 44 always abuts against the magnetic control member 32, causing the magnetic control member 32 to approach the rotating member 31, increasing the resistance of the magnetic control member 32 to the rotating member 31, and further increasing the rotational resistance of the draw tape shaft 2, so that the draw tape conveyed from the draw tape reel gradually tightens. When the draw tape and the strip of transparency are conveyed at a constant speed, the tensile force on the draw tape remains unchanged, and the distance between the magnetic control member 32 and the rotating member 31 remains unchanged. When the draw tape and the strip of transparency are conveyed at a reduced speed, the tensile force on the draw tape decreases, the pressing member 44 fits against the magnetic control member 32, and the magnetic control member 32 moves relatively away from the rotating member 31, reducing the resistance of the magnetic control member 32 to the rotating member 31, and further reducing the rotational resistance of the draw tape shaft 2. In the above process, during the conveyance of the draw tape, the magnetic control member 32 and the rotating member 31 use a non-contact braking method, avoiding the wear of the rotating member 31 and the magnetic control member 32 caused by the long-term rotation of the draw tape shaft 2, reducing the frictional wear of the rotating member 31 during the conveyance of the draw tape, and improving the stability of the draw tape conveyance. It should be noted that in this embodiment, the rotating member 31 is a disc structure. In other embodiments, the rotating member 31 can also be an annular structure or a cylindrical structure, etc. This is not limited here. At the same time, it should be noted that in this embodiment, the magnetic control member 32 is an arc structure. In other embodiments, the magnetic control member 32 can also be a polygonal structure, etc. This is not limited here.

[0066] Specifically, as Figure 1 and Figure 2 shown, in this embodiment, the linkage assembly 4 is arranged below the magnetic control assembly 3, and the draw tape passes under the bottom of the first guide member 51 and moves upward. In other embodiments, the linkage assembly 4 can also be arranged above the magnetic control assembly 3, and the draw tape passes over the top of the first guide member 51 and moves downward, etc. This is not limited here.

[0067] Specifically, as Figure 3 shown, in the embodiment, the magnetic control member 32 is slidably connected to the mounting assembly 1. In other embodiments, the magnetic control member 32 can also be rotatably connected to the mounting assembly 1. This is not limited here.

[0068] Specifically, as Figure 1 and Figure 3 shown, in this embodiment, the center of the magnetic control member 32 and the center of the rotating member 31 are on the same straight line, and the magnetic control member 32 can approach or move away from the rotating member 31 along the center direction of the rotating member 31. The above setting ensures that when the magnetic control member 32 approaches or moves away from the rotating member 31, the rotating member 31 can be uniformly stressed.

[0069] Optionally, asFigure 1 As shown, in this embodiment, the rotating member 31 includes a rotating main body 311 and a first magnetic part 312. The first magnetic part 312 is disposed on the outer peripheral surface of the rotating main body 311. The magnetic control member 32 includes a magnetic control main body 321 and a second magnetic part 322. The second magnetic part 322 is disposed on the side of the magnetic control main body 321 facing the rotating main body 311. The first magnetic part 312 and the second magnetic part 322 have opposite magnetic polarities. Since the first magnetic part 312 and the second magnetic part 322 disposed opposite to each other have opposite magnetic polarities, when the rotating member 31 rotates relative to the magnetic control member 32, the magnetic control member 32 and the rotating member 31 attract each other, and thus the magnetic control member 32 can provide a non-contact resistance for the rotating member 31. It should be noted that in this embodiment, both the first magnetic part 312 and the second magnetic part 322 are magnets. In other embodiments, the first magnetic part 312 and the second magnetic part 322 can also be neodymium iron boron alloy or silicon steel sheet, etc. There is no limitation here.

[0070] Optionally, in this embodiment, a plurality of the first magnetic parts 312 and a plurality of the second magnetic parts 322 are provided. The plurality of first magnetic parts 312 are evenly spaced along the circumferential direction of the rotating main body 311 on the outer peripheral surface of the rotating main body 311, and the plurality of second magnetic parts 322 are evenly spaced along the circumferential direction of the magnetic control main body 321 on the side of the magnetic control main body 321 facing the rotating main body 311. The evenly distributed plurality of first magnetic parts 312 and second magnetic parts 322 make the magnetic field distribution more uniform, and thus when braking the pulling belt rotating shaft 2, the force received by the pulling belt is more uniform, making the braking process of the pulling belt smoother.

[0071] Optionally, as Figure 1 and Figure 4 shown, in this embodiment, the rotating member 31 is provided with a plurality of through holes 313. The plurality of through holes 313 are evenly distributed on the surface of the rotating main body 311. The arrangement of the through holes 313 can not only reduce the weight of the rotating member 31 and the moment of inertia, but also facilitate air circulation and heat dissipation. It should be noted that in this embodiment, six through holes 313 are provided. In other embodiments, the number of through holes 313 can be three, four, five, etc. There is no limitation here.

[0072] Optionally, as Figure 1 and Figure 2 shown, in this embodiment, the linkage assembly 4 is slidably connected to the mounting assembly 1. In other embodiments, the linkage assembly 4 can also be rotatably connected to the mounting assembly 1, etc. There is no limitation here.

[0073] Optionally, as Figure 1 and Figure 2As shown, in this embodiment, the pressing member 44 is fixed to the second end of the linkage assembly 4, and the pressing member 44 is a pressing column. In other embodiments, the pressing member 44 may also be a pressing plate or a pressing rod, etc. There is no limitation here. It should be noted that, in this embodiment, the pressing member 44 can abut against the side of the magnetron body 321 away from the rotating body 311. In other embodiments, the pressing member 44 can also abut against any position of the magnetron body 321, as long as it can drive the magnetron body 321 to approach or move away from the rotating body 311.

[0074] Optionally, as Figure 1 and Figure 2 shown, the first guiding member 51 is a guide roller. In other embodiments, the first guiding member 51 may also be a structure with a curved guiding groove or a guide wheel, etc. There is no limitation here.

[0075] Furthermore, as Figure 3 shown, the magnetron assembly 3 further includes a limiting sleeve 34 and a first elastic member 33; wherein, the limiting sleeve 34 is fixedly connected to the mounting assembly 1, one end of the first elastic member 33 abuts against or is connected to the magnetron member 32, and the other end of the first elastic member 33 abuts against or is connected to the limiting sleeve 34. When the magnetron body 321 approaches the rotating body 311, the pressing member 44 abuts against the magnetron body 321, so that the magnetron body 321 overcomes the acting force of the first elastic member 33 and increases the rotational resistance to the rotating body 311; when the magnetron body 321 moves away from the rotating body 311, the pressing member 44 fits on the magnetron body 321, and the first elastic member 33 gradually returns to its original state by virtue of its elastic characteristics, and the rotational resistance of the magnetron body 321 to the rotating body 311 is reduced. The above setting has a simple structure and is easy to repair. It should be noted that, in this embodiment, the first elastic member 33 is a spring. In other embodiments, the first elastic member 33 may also be a rubber shock absorber, etc. There is no limitation here.

[0076] Optionally, as Figure 3 shown, in this embodiment, the magnetron assembly 3 further includes a connecting member 35. One end of the connecting member 35 is slidably connected inside the limiting sleeve 34, and the other end of the connecting member 35 is fixedly connected to the side of the magnetron member 32 facing the rotating member 31. The cooperation of the above connecting member 35 and the limiting sleeve 34 provides a guiding effect for the sliding of the magnetron member 32. In other embodiments, the other end of the connecting member 35 may also be fixedly connected to the side of the magnetron member 32 away from the rotating member 31, or the other end of the connecting member 35 may be fixedly connected to the side wall of the magnetron member 32. There is no limitation here, as long as the magnetron member 32 and the connecting member 35 can be fixed. It should be noted that, in this embodiment, the connecting member 35 is a square rod. In other embodiments, the connecting member 35 may also be a round rod, etc. There is no limitation here.

[0077] Specifically, asFigure 3 As shown, in this embodiment, the other end of the connecting member 35 is welded to the side of the magnet control body 321 facing the rotating body 311, and the strength of the welded connection is high. In other embodiments, the other end of the connecting member 35 may also be adhesively connected or integrally formed with the side of the magnet control body 321 facing the rotating body 311. No limitation is made here.

[0078] Specifically, in this embodiment, the first elastic member 33 is sleeved on the outer periphery of the connecting member 35. While providing sliding guidance for the magnet control member 32, it can also prevent the first elastic member 33 from being bent. In other embodiments, the first elastic member 33 may also be arranged side by side beside the connecting member 35, etc. No limitation is made here.

[0079] Optionally, in this embodiment, one end of the first elastic member 33 abuts against the magnet control member 32, the other end of the first elastic member 33 abuts against the limiting sleeve 34, and the first elastic member 33 is in a compressed state. In other embodiments, one end of the first elastic member 33 is connected to the magnet control member 32, the other end of the first elastic member 33 is connected to the limiting sleeve 34, and the first elastic member 33 is in a stretched state or a normal state. No limitation is made here.

[0080] Optionally, as Figure 3 shown, in this embodiment, the magnet control assembly 3 further includes a limiting member (not shown in the figure). The limiting member is fixedly connected to the mounting assembly 1. A limiting port is formed at the end of the connecting member 35 away from the magnet control body 321. The limiting member is inserted into the limiting port and can slide within the limiting port. When the magnet control body 321 infinitely approaches the rotating body 311, the limiting member moves to one end of the limiting port. At this time, the magnet control body 321 no longer moves relative to the rotating body 311, preventing the magnet control body 321 from colliding with the rotating body 311 and causing interference and dropping of the first magnetic part 312 or the second magnetic part 322.

[0081] Furthermore, as Figure 1 and Figure 2 shown, the linkage assembly 4 includes a first swinging member 41, an adjusting member 42, and a driven member 43. Among them, the first swinging member 41 is rotatably connected to the mounting assembly 1. A first guiding member 51 is provided at the first end of the first swinging member 41. The adjusting member 42 is connected to the first swinging member 41. The driven member 43 is movably connected to the mounting assembly 1. The adjusting member 42 can abut against the first end of the driven member 43. A pressing member 44 is provided at the second end of the driven member 43.

[0082] When conveying the pulling belt, pull the pulling belt extending from the first guiding member 51 in the upward direction. The pulling belt will apply an upward force to the first guiding member 51 under the pulling force and drive the first guiding member 51 to move upward in the vertical direction. At the same time, the first swinging member 41 rotates, and the connecting adjusting member 42 rotates simultaneously, thereby driving the driven member 43 to move on the mounting assembly 1, so that the pressing member 44 abuts against the magneto - control main body 321. The above - mentioned setting enables the coordinated work of each component, providing a strong guarantee for the stable operation of the pulling - belt conveying device and the precise adjustment during the pulling - belt conveying and braking. It should be noted that in this embodiment, the adjusting member 42 is a cam - plate structure. In other embodiments, the adjusting member 42 can also be a rectangular plate. One end of the rectangular plate is fixedly connected to the first swinging member 41, the second end of the rectangular plate is inclined towards the side of the first guiding member 51, and the second end of the rectangular plate can abut against the first end of the driven member 43. Or the adjusting member 42 can also be a rhombic plate. One of the apex angles of the rhombic plate is fixedly connected to the first swinging member 41, the opposite apex angle of the rhombic plate is inclined towards the side of the first guiding member 51, and the opposite apex angle of the rhombic plate can abut against the first end of the driven member 43, etc. There is no limitation here.

[0083] Specifically, as Figure 1 and Figure 2 shown, in this embodiment, the adjusting member 42 includes an adjusting part and a connecting part. The adjusting part can abut against and tightly press the first end of the driven member 43. One end of the connecting part is fixedly connected to the adjusting part, and the other end of the connecting part is connected to the first swinging member 41 in a position - adjustable manner. The above - mentioned setting enables the position of the adjusting part relative to the first swinging member 41 to be variable, thereby adjusting the contact time and contact point between the adjusting part and the driven member 43 when the first swinging member 41 rotates, and further changing the time when the magneto - control main body 321 approaches or moves away from the rotating main body 311, improving the versatility and applicability of the pulling - belt conveying device.

[0084] Optionally, as Figure 1 and Figure 2 shown, in this embodiment, the first swinging member 41 is a swinging connecting plate. In other embodiments, the first swinging member 41 can also be a swinging connecting rod, etc. There is no limitation here.

[0085] Optionally, as Figure 1 and Figure 2As shown, in this embodiment, the linkage assembly 4 further includes a first counterweight 45, and the first counterweight 45 is detachably connected to the second end of the first swing member 41. The setting of the first counterweight 45 can change the center of gravity position of the first swing member 41 when conveying the pulling belt, so that the first swing member 41 maintains balance under different positions and forces, facilitating operation and control. Specifically, in this embodiment, a plurality of first counterweights 45 are provided, and the plurality of first counterweights 45 can all be detachably connected to the second end of the first swing member 41 to adjust the balance between the two ends of the first swing member 41. It should be noted that the first counterweight 45 in this embodiment is a counterweight block, and the number of the first counterweights 45 is not limited, and can be two, three, four or more. There is no limit here.

[0086] Specifically, in this embodiment, as Figure 2 shown, the rotating shaft of the first swing member 41 is at any position between the first counterweight 45 and the first guide member 51, and there is no limit here.

[0087] Optionally, as Figure 2 shown, in this embodiment, the mounting assembly 1 is provided with a swing hole, the first swing member 41 is provided with an adjustment hole 411, the linkage assembly 4 further includes an adjustment rod, one end of the adjustment rod is fixedly connected to one of the adjustment hole 411 and the swing hole with adjustable position, and the other end of the adjustment rod can slide in the other of the two. The above setting can limit the swing amplitude of the first swing member 41. Specifically, in this embodiment, one end of the adjustment rod is fixedly connected to the adjustment hole 411 with adjustable position, and the other end of the adjustment rod can slide in the swing hole. In other embodiments, one end of the adjustment rod is fixedly connected to the swing hole with adjustable position, and the other end of the adjustment rod can slide in the adjustment hole 411. There is no limit here. It should be noted that in this embodiment, the adjustment hole 411 is an arc waist-shaped hole. In other embodiments, the adjustment hole 411 can also be a waist-shaped hole or a rectangular hole, etc. There is no limit here.

[0088] Optionally, as Figure 2 shown, in this embodiment, the driven member 43 is slidably connected to the mounting assembly 1. In other implementations, the driven member 43 can also be rotatably connected to the mounting assembly 1, etc. There is no limit here.

[0089] Optionally, as Figure 1 and Figure 2 shown, in this embodiment, the driven member 43 is a driven plate. In other embodiments, the driven member 43 can also be a driven rod or a driven column, etc. There is no limit here.

[0090] Optionally, as Figure 2As shown, in this embodiment, a rolling part 431 is provided at the first end of the follower 43. The rolling part 431 can abut and press against the adjusting part 42. By providing the rolling part 431, the coordinated movement between the adjusting part 42 and the follower 43 is made flexible. It should be noted that, in this embodiment, the rolling part 431 is rotatably connected to the first end of the follower 43. The rotatable connection makes the coordinated movement between the rolling part 431 and the adjusting part 42 more flexible. Specifically, as Figure 2 shown, in this embodiment, the rolling part 431 is a rolling wheel. In other embodiments, the rolling part 431 can also be a rolling shaft or the like. No limitation is made here.

[0091] Furthermore, as Figure 5 shown, the pull - belt rotating shaft 2 includes a rotating - shaft body 21 and an elastic element 22; wherein, the rotating - shaft body 21 is rotatably connected to the mounting assembly 1, the rotating part 31 is coaxially fixed to the rotating - shaft body 21, the pull - belt reel is sleeved outside the rotating - shaft body 21, and the elastic element 22 is fixedly installed on the rotating - shaft body 21. The elastic element 22 can abut against the inner wall of the pull - belt reel. The setting of the elastic element 22 enables the pull - belt reel to rotate synchronously with the rotating - shaft body 21 when the rotating - shaft body 21 rotates, avoiding the situation that the pull - belt reel and the rotating - shaft body 21 rotate at different speeds, and improving the stability of the pull - belt conveying device. It should be noted that, in this embodiment, the elastic element 22 is a spring plate. In other embodiments, the elastic element 22 can also be a disc spring or the like. No limitation is made here.

[0092] Specifically, as Figure 5 shown, in this embodiment, four elastic elements 22 are provided, and the four elastic elements 22 are evenly spaced along the axial direction of the rotating - shaft body 21. In other embodiments, the number of elastic elements 22 can also be two, three, five or the like. No limitation is made here.

[0093] Optionally, as Figure 5 shown, in this embodiment, the pull - belt rotating shaft 2 further includes a fixing part 23. The fixing part 23 is coaxially connected to the outer periphery of the rotating - shaft body 21, and one end of the fixing part 23 can abut against the pull - belt reel. By providing the fixing part 23, the displacement of the pull - belt reel in the axial direction is restricted, further ensuring the stability of the pull - belt conveying device.

[0094] Specifically, in this embodiment, the fixing part 23 is a nut. In other embodiments, the fixing part 23 can also be a buckle or the like. No limitation is made here.

[0095] Furthermore, as Figure 6As shown in the figure, the belt conveying device further includes a buffer assembly 6. The buffer assembly 6 is movably connected to the mounting assembly 1, and the belt passes through the buffer assembly 6. The buffer assembly 6 can swing relative to the mounting assembly 1 to achieve buffering of the belt. When the belt is accelerating and conveying at a constant speed, the belt passes through the buffer assembly 6, and the buffer assembly 6 is stressed. The belt drives the buffer assembly 6 to swing, thereby releasing the belt. When the belt is decelerating and conveying, the buffer assembly 6 swings in the opposite direction, so that the belt between the belt reel and the buffer assembly 6 is buffered, and thus the belt between the buffer assembly 6 and the belt reel is relaxed. The above settings can alleviate the influence of the intermittent movement during the belt conveying process on the belt quality and prevent the belt from being stretched or even broken.

[0096] Optionally, in this embodiment, the buffer assembly 6 is rotatably connected to the mounting assembly 1. In other embodiments, the buffer assembly 6 can also be slidably connected to the mounting assembly 1. There is no limitation here.

[0097] Furthermore, as Figure 6 shown, the buffer assembly 6 includes a buffer rotating shaft 69, a second swinging member 62 and a second guiding member 64. Among them, the first end of the buffer rotating shaft 69 is fixedly connected to the mounting assembly 1, the second end of the buffer rotating shaft 69 is rotatably connected with a first guiding member 61, the second swinging member 62 is rotatably connected to the buffer rotating shaft 69, and the second guiding member 64 is rotatably connected to the second end of the second swinging member 62. When conveying the belt, the belt passes through the first guiding member 61 and the second guiding member 64 in sequence and then is conveyed in transparent fit with the strip. During the acceleration and constant-speed conveying process of the belt, the force exerted by the belt on the second guiding member 64 can drive the second swinging member 62 to swing in the same direction as the belt conveying direction, thereby releasing the belt. During the deceleration conveying process of the belt, the second swinging member 62 will swing in the opposite direction to the belt conveying direction due to gravity, so that the belt between the buffer assembly 6 and the belt reel is relaxed. With the above settings, the buffer assembly 6 can store and absorb the belt through swinging, realizing the swinging buffering of the belt. It should be noted that in this embodiment, the first end of the buffer rotating shaft 69 is welded to the mounting assembly 1. In other embodiments, the first end of the buffer rotating shaft 69 can also be inserted and connected to the mounting assembly 1, etc. There is no limitation here.

[0098] Specifically, in this embodiment, a bearing is provided between the second swinging member 62 and the buffer rotating shaft 69. The bearing can reduce the rotational friction between the second swinging member 62 and the buffer rotating shaft 69.

[0099] Specifically, as Figure 6 shown, in this embodiment, both the first guiding member 61 and the second guiding member 64 are guide rollers and have the same structure as that of the first guiding member 51. In other embodiments, the first guiding member 61 and the second guiding member 64 can also be guide wheels, etc. There is no limitation here.

[0100] Specifically, as Figure 6 shown, in this embodiment, the second swinging member 62 is a bent plate. The bent plate can cause the pulling belt between the first guiding member 61 and the second guiding member 64 to form a Z shape, increasing the wrap angle of the pulling belt with the second guiding member 64, reducing the possibility of slipping, and ensuring the stability and accuracy of the pulling belt conveyance. In other embodiments, the second swinging member 62 can also be a bent block or a bent rod, etc. There is no limitation here.

[0101] Optionally, as Figure 6 shown, in this embodiment, a limiting hole 621 is formed at the first end of the second swinging member 62. The buffer assembly 6 further includes a limiting member 63. The limiting member 63 is movably connected to the mounting assembly 1. The limiting member 63 is inserted into the limiting hole 621, and the limiting member 63 can slide within the limiting hole 621. The settings of the limiting hole 621 and the limiting member 63 enable the second swinging member 62 to swing within a certain range, ensuring the smooth progress of the pulling belt conveyance process. At the same time, the limiting member 63 is movably connected to the mounting assembly 1, enabling the swinging range of the second swinging member 62 to be adjusted, further improving the versatility of the pulling belt conveying device. It should be noted that in this embodiment, the limiting hole 621 is an arc waist-shaped hole. In other embodiments, the limiting hole 621 can also be a rectangular hole or a waist-shaped hole, etc. There is no limitation here.

[0102] Furthermore, as Figure 6 shown, the buffer assembly 6 further includes a locking member 67 and a second elastic member 65; wherein, the locking member 67 is connected to the first end of the buffer rotating shaft 69, and the second elastic member 65 is coaxially sleeved on the buffer rotating shaft 69. One end of the second elastic member 65 can abut against the second swinging member 62, and the other end can abut against the locking member 67. When the second swinging member 62 swings around the buffer rotating shaft 69, due to the existence of the second elastic member 65, a force opposite to the force exerted by the pulling belt on the second swinging member 62 is provided to the second swinging member 62, enabling the second swinging member 62 to maintain a stable state during the conveyance process. The stability of the pulling belt conveyance is improved. It should be noted that in this embodiment, the second elastic member 65 is a spring. In other embodiments, the second elastic member 65 can also be an elastic structure such as a rubber shock absorber. There is no limitation here.

[0103] Specifically, as Figure 6 shown, in this embodiment, the locking member 67 is rotatably connected to the first end of the buffer rotating shaft 69, and the locking member 67 is in contact with the mounting assembly 1. In other embodiments, the locking member 67 can also be fixedly connected to the first end of the buffer rotating shaft 69, etc. There is no limitation here.

[0104] Optionally, as Figure 6As shown, in this embodiment, the buffer assembly 6 also includes a locking limit member 66, which includes a limit portion, a moving portion and a locking portion, the limit portion is connected to the moving portion, the moving portion is slidably connected to the second end of the second swinging member 62, the locking portion is elastically connected to the moving portion, and the locking portion can be inserted into the second end of the second swinging member 62.

[0105] When the drawstring is being transported, it passes through the second guide member 64 and then the limiting portion, and is then transmitted in conjunction with the transparent strip. Driven by the moving portion, the limiting portion can move on the second end of the second swinging member 62 along the extension direction of the second swinging member 62. When the drawstring is placed in the second guide member 64, the limiting portion moves upward to limit the drawstring to prevent the drawstring from moving left and right or deviating from the second guide member 64 due to jumping. When the limiting portion reaches the upper limit position, the locking portion is inserted into the second end of the second swinging member 62 due to the elastic force to fix the movement of the limiting portion.

[0106] Alternatively, if Figure 6 As shown, in this embodiment, the buffer assembly 6 further includes a handle 68, which is fixedly connected to the first end of the second swing member 62. The arrangement of the handle 68 facilitates manual installation of the drawstring and checking the flexibility of the second swing member 62.

[0107] Furthermore, if Figure 8 As shown, the belt conveying device also includes an auxiliary conveying component 7, which is rotatably connected to the mounting component 1, and the auxiliary conveying component 7 contacts the belt to convey the belt. By providing the auxiliary conveying component 7, not only the conveying efficiency of the belt is ensured, but also the problem of belt wear or conveying jamming caused by improper speed is avoided.

[0108] Furthermore, if Figure 8 As shown, the auxiliary conveying component 7 includes a driving member 71 and an auxiliary conveying member 73; wherein the driving member 71 is connected to the mounting component 1, and the first end of the auxiliary conveying member 73 is transmission-connected to the output end of the driving member 71, and the driving member 71 rotates to drive the auxiliary conveying member 73 to rotate, and the second end of the auxiliary conveying member 73 is in frictional contact with the drawstring. The frictional contact transmission drawstring provides a guarantee for the synchronous transmission of the drawstring and the transparent strip. Optionally, in this embodiment, the surface of the second end of the auxiliary conveying member 73 in contact with the drawstring is provided with an anti-slip material. The friction force with the drawstring is increased, and the synchronization of the drawstring transmission is improved. It should be noted that the anti-slip material is rubber. In other embodiments, the anti-slip material can also be silica gel, etc. This is not limited here.

[0109] Specifically, Figure 8As shown, in this embodiment, the driving member 71 is a strip-shaped transparent conveying roller. Before the pulling belt is adhered and conveyed to the strip-shaped transparent member, the conveying speed of the pulling belt is the same as that of the strip-shaped transparent member, so as to avoid the pulling belt from being slack, stretched or broken during conveying due to speed differences. In other embodiments, the driving member 71 can also be a separately provided rotating motor or a rotating cylinder, etc. There is no limitation here.

[0110] Optionally, as Figure 8 shown, in this embodiment, the auxiliary conveying assembly 7 further includes a transmission member 72. The transmission member 72 is coaxially connected to the output end of the driving member 71, and the transmission member 72 is in frictional transmission with the first end of the auxiliary conveying member 73. Specifically, in this embodiment, the transmission member 72 is a truncated cylinder. One rotation of the truncated cylinder corresponds to the packaging process of a cigarette case. During the process of conveying the pulling belt, the material of the transmission member 72 can be saved. In other embodiments, the transmission member 72 can also be a complete cylinder or a disc, etc. There is no limitation here.

[0111] Optionally, as Figure 8 shown, in this embodiment, the auxiliary conveying assembly 7 further includes a sixth guiding member 74 and a seventh guiding member 75. Along the conveying direction of the pulling belt, the sixth guiding member 74 and the seventh guiding member 75 are located on both sides of the second end of the auxiliary conveying member 73. During the conveying process of the pulling belt, the pulling belt sequentially passes through the seventh guiding member 75, the auxiliary conveying member 73 and the sixth guiding member 74, so that the pulling belt enters the second end of the auxiliary conveying member 73 at a certain angle, further increasing the friction between the pulling belt and the second end of the auxiliary conveying member 73.

[0112] Optionally, as Figure 1 、 Figure 2 、 Figure 7 and Figure 8As shown in the figure, in this embodiment, the strap conveying device further includes a guiding assembly 5. The guiding assembly 5 includes a first guiding member 51, a second guiding member 52, a third guiding member 53, a fourth guiding member 54, and a fifth guiding member 55. The first guiding member 51, the second guiding member 52, and the third guiding member 53 are all rotatably connected to the first swinging member 41. Along the extending direction of the first swinging member 41, the first guiding member 51, the second guiding member 52, and the third guiding member 53 are arranged at intervals. The fourth guiding member 54 and the fifth guiding member 55 are arranged at intervals and are rotatably connected to the mounting assembly 1. When conveying the strap, the strap wound on the strap reel sequentially passes through the third guiding member 53, the fourth guiding member 54, the second guiding member 52, the fifth guiding member 55, and the first guiding member 51, and finally is attached and transported with a strip of transparency. The arrangement of multiple guiding members enables the strap to gradually change its direction during transportation, realizing the conveyance of the strap. It should be noted that in this embodiment, the first guiding member 51, the second guiding member 52, the third guiding member 53, the fourth guiding member 54, and the fifth guiding member 55 are made of hard plastic, which can reduce the friction between the strap and the guiding members. In other embodiments, the first guiding member 51, the second guiding member 52, the third guiding member 53, the fourth guiding member 54, and the fifth guiding member 55 can also be made of ceramic, or the first guiding member 51, the second guiding member 52, and the third guiding member 53 are made of hard plastic, and the fourth guiding member 54 and the fifth guiding member 55 are made of ceramic, etc. No limitation is made here.

[0113] Specifically, in this embodiment, bearings are provided inside the first guiding member 51, the second guiding member 52, the third guiding member 53, the fourth guiding member 54, and the fifth guiding member 55, which improves the flexibility of rotation.

[0114] Specifically, in this embodiment, the second guiding member 52, the third guiding member 53, the fourth guiding member 54, and the fifth guiding member 55 are all guide rollers. In other embodiments, the second guiding member 52, the third guiding member 53, the fourth guiding member 54, and the fifth guiding member 55 can also be guide wheels, or the second guiding member 52 and the third guiding member 53 are guide rollers, and the fourth guiding member 54 and the fifth guiding member 55 are guide wheels, etc. No limitation is made here.

[0115] Specifically, in this embodiment, as Figure 2 and Figure 7As shown, along the extension direction of the first swing member 41, the first guide member 51, the second guide member 52, and the third guide member 53 are arranged in sequence. The first guide member 51 is at the end of the first swing member 41. Along the axial direction of the first guide member 51, the lengths of the first guide member 51, the second guide member 52, and the third guide member 53 increase in sequence. During the process of the belt being conveyed, the lengths of the third guide member 53, the second guide member 52, and the first guide member 51 gradually decrease, which can limit the movement of the belt along the axial direction of the first guide member 51 during the conveying process, and finally convey the belt on the preset route.

[0116] Specifically, as Figure 7 shown, in this embodiment, the first guide member 51 includes a first guide main body 511 and a first inclined portion 512. The first inclined portion 512 is fixedly connected to both ends of the first guide main body 511, and the first inclined portion 512 inclines towards the first guide main body 511. The above setting prevents the belt from falling off the first guide main body 511 during the conveying process.

[0117] It should be noted that in this embodiment, the second guide member 52, the fourth guide member 54, and the fifth guide member 55 have the same structure as the first guide member 51, and will not be elaborated here.

[0118] Specifically, as Figure 9 shown, in this embodiment, the third guide member 53 includes a third guide main body 531 and a second inclined portion 532. The second inclined portion 532 is fixedly connected to both ends of the third guide main body 531, and the second inclined portion 532 inclines towards the third guide main body 531. The above setting prevents the belt from falling off the third guide main body 531 during the conveying process.

[0119] Specifically, as Figure 9 shown, in this embodiment, at least one end of the third guide member 53 protrudes with a convex rod along the axial direction of the third guide main body 531. The third guide member 53 further includes a third elastic member 533 and a sliding sleeve 534. The sliding sleeve 534 is sleeved on the convex rod, and the sliding sleeve 534 is fixed on the mounting assembly 1. The third elastic member 533 is sleeved on the convex rod. One end of the third elastic member 533 abuts against the sliding sleeve 534, and the other end abuts against the third guide main body 531. When the belt deflects, the third guide main body 531 will move with the belt, preventing the belt from deflecting excessively and falling off. It should be noted that in this embodiment, third elastic members 533 are arranged on both sides of the sliding sleeve 534 along the axial direction of the third guide main body 531. At the same time, it should be noted that the third elastic member 533 is a spring.

[0120] Specifically, in this embodiment, one end of the third guiding member 53 is provided with a convex rod protruding along the axial direction of the third guiding main body 531. In other embodiments, both ends of the third guiding member 53 are provided with convex rods protruding along the axial direction of the third guiding main body 531. No limitation is made here.

[0121] Optionally, as Figure 8 shown, in this embodiment, the strap conveying device further includes a first deflecting member 91 and a second deflecting member 92. Both the first deflecting member 91 and the second deflecting member 92 are rotatably connected to the mounting assembly 1, and the first deflecting member 91 and the second deflecting member 92 can change the conveying direction of the strap. The arrangement of the first deflecting member 91 and the second deflecting member 92 makes the conveying direction of the strap parallel to the conveying direction of the strip transparency, facilitating the fitting and conveying of the strap and the strip transparency. It should be noted that, in this embodiment, both the first deflecting member 91 and the second deflecting member 92 are guide wheels. In other embodiments, the first deflecting member 91 and the second deflecting member 92 can also be guide rollers, etc. No limitation is made here.

[0122] Optionally, as Figure 8 shown, in this embodiment, the fifth guiding member 55 includes a fifth guiding main body 551, a fifth elastic member 552 and a buffer sleeve 553. The fifth guiding main body 551 is rotatably connected to the buffer sleeve 553, the buffer sleeve 553 is slidably connected to the mounting assembly 1, one end of the fifth elastic member 552 is fixedly connected to the buffer sleeve 553, and the other end is fixedly connected to the mounting assembly 1. The fifth guiding main body 551 can rotate freely and also move up and down along the mounting assembly 1. When the strap is conveyed too tightly, the fifth guiding main body 551 is buffered by the fifth elastic member 552, thereby releasing the strap. It should be noted that the third elastic member 533 is a spring.

[0123] Optionally, as Figure 11 shown, in this embodiment, the strap conveying device further includes a broken strap detection assembly 8. The broken strap detection assembly 8 is arranged at a position before the strap and the strip transparency are fitted and conveyed, and the broken strap detection assembly 8 is used to detect whether the strap is broken.

[0124] Specifically, in this embodiment, the broken strap detection assembly 8 includes a strap contact head 81, a detector 82, a detection head 83, a linkage rod 84 and a fixing rod 85; wherein, the fixing rod 85 is fixedly connected to the mounting assembly 1, the linkage rod 84 is rotatably connected to the fixing rod 85, one end of the linkage rod 84 is provided with the strap contact head 81, the strap contact head 81 can be lapped on the strap, and the detection head 83 is connected to the linkage rod 84. The detector 82 is arranged at a relative position of the detection head 83.

[0125] The drawstring contact head 81 presses on the drawstring under the action of gravity, always maintaining its position at a certain height. Since the height change alters the position of the detection head 83, the set value of the detector 82 can be adjusted according to the position of the detection head 83 and the detector 82. When the height decreases and the value exceeds the limit, a signal indicating drawstring breakage is sent, a shutdown message appears, and a signal is sent for reminder. The above settings prevent the equipment from suddenly shutting down. It should be noted that in this embodiment, the detector 82 is a capacitive detector. In other embodiments, the detector 82 can also be a resistive detector or an ultrasonic detector, etc. No limitation is made here.

[0126] Optionally, in this embodiment, a second counterweight 86 is provided at the other end of the linkage rod 84, and the second counterweight 86 can move on the linkage rod 84 along the extension direction of the linkage rod 84. The setting of the second counterweight 86 can adjust the pressure between the drawstring contact head 81 and the drawstring, preventing the drawstring from fluctuating up and down when the pressure is too tight, which may cause the drawstring contact head 81 to jump.

[0127] Specifically, in this embodiment, a fixing hole is formed in the second counterweight 86, and the drawstring conveying device includes a fastener (not shown in the figure). The fastener passes through the fixing hole and is fixed to the linkage rod 84. In this embodiment, the fastener is a screw. In other embodiments, the fastener can also be a bolt, etc. No limitation is made here.

[0128] Optionally, in this embodiment, the drawstring conveying device further includes an offset detection component (not shown in the figure). The offset detection component is arranged at a position before the drawstring and the transparent strip are conveyed in a bonded manner. The offset detection component is used to detect the degree of offset between the actual conveying route of the drawstring and the preset conveying path. If the actual conveying route of the drawstring deviates too much from the preset conveying path, the drawstring conveying device stops. It should be noted that the offset detection component is a prior art. In this embodiment, any offset detection component in the prior art can be used to detect the degree of offset between the actual conveying route of the drawstring and the preset conveying path. No further limitation is made here.

[0129] Optionally, in this embodiment, the drawstring conveying device further includes a drawstring presence detection component. The drawstring presence detection component is arranged at a position after the guiding component 5. The drawstring presence detection component is used to detect whether the drawstring exists. The drawstring detection component is a prior art. In this embodiment, any drawstring presence detection component in the prior art can be used to detect whether the drawstring exists. No further elaboration is made here.

[0130] This embodiment also provides a cigarette case packaging machine, including a cigarette case packaging machine body and a drawstring conveying device. The drawstring conveying device is arranged on the cigarette case packaging machine body. By applying the drawstring conveying device, the wear of the rotating part 31 and the magnetic control part 32 caused by the long-term rotation of the drawstring rotating shaft 2 is avoided, the frictional wear during the drawstring conveying process is reduced, and the stability of the drawstring conveying is improved.

[0131] The following is an introduction to the belt conveying path of the conveying device:

[0132] The draw tape is led out from the draw tape reel mounted on the shaft body 21, and then passes through the third guide member 53, the fourth guide member 54, the second guide member 52, the fifth guide member 55 and the first guide member 51 in sequence, and then passes through the draw tape existence detection component, and then passes through the seventh guide member 75, the auxiliary conveying member 73 and the sixth guide member 74, and then passes through the first direction-changing member 91 and the second direction-changing member 92, so that the conveying direction of the draw tape is parallel to the conveying direction of the transparent strip, and then passes through the first guide member 61, the second guide member 64 and the limiting part to enter the offset detection component, and determines the conveying path of the draw tape before it is about to be conveyed in conjunction with the transparent strip, and finally the draw tape is conveyed in conjunction with the transparent strip.

[0133] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A drawstring conveying device, used for conveying drawstrings, wherein the drawstrings are conveyed in a transparently laminated manner with strips, characterized in that: include: Install the components (1); A drawstring rotating shaft (2) is rotatably connected to the mounting assembly (1), and a drawstring reel is coaxially fixed to the drawstring rotating shaft (2); A magneto control assembly (3), the magneto control assembly (3) comprising a rotating member (31) and a magnetic control member (32), the rotating member (31) being coaxially fixed to the drawstring shaft (2), the magnetic control member (32) being movably connected to the mounting assembly (1), the magnetic control member (32) being able to approach or move away from the rotating member (31) to change the rotational resistance of the drawstring shaft (2); A linkage component (4), wherein the linkage component (4) is movably connected to the mounting component (1), a first guide member (51) is disposed at a first end of the linkage component (4), a clamping member (44) is disposed at a second end of the linkage component (4), the drawstring can pass through the first guide member (51) and drive the first guide member (51) to move, and the clamping member (44) moves synchronously with the first guide member (51) so that the clamping member (44) can abut against the magnetic control member (32).

2. The belt conveyor device according to claim 1, characterized in that: The magnetron assembly (3) further comprises: A limiting sleeve (34), wherein the limiting sleeve (34) is fixedly connected to the mounting assembly (1); A first elastic member (33), one end of the first elastic member (33) abuts against or is connected to the magnetic control member (32), and the other end of the first elastic member (33) abuts against or is connected to the limiting sleeve (34).

3. The belt conveyor device according to claim 1, characterized in that: The linkage component (4) comprises: A first swinging member (41), the first swinging member (41) being rotatably connected to the mounting assembly (1), and the first end of the first swinging member (41) being provided with the first guide member (51); An adjusting member (42), the adjusting member (42) being connected to the first swinging member (41); A follower (43), wherein the follower (43) is movably connected to the mounting assembly (1), the adjusting member (42) is capable of abutting against a first end of the follower (43), and the pressing member (44) is provided at a second end of the follower (43).

4. The belt conveyor device according to claim 1, characterized in that: The drawstring rotating shaft (2) comprises: The rotating shaft body (21) is rotatably connected to the mounting assembly (1), the rotating member (31) is coaxially fixed to the rotating shaft body (21), and the pull belt reel is sleeved outside the rotating shaft body (21); An elastic element (22), wherein the elastic element (22) is fixedly mounted on the rotating shaft body (21), and the elastic element (22) can abut against the inner wall of the drawstring reel.

5. The belt conveyor device according to any one of claims 1 to 4, characterized in that: The belt conveyor device also includes: A buffer component (6), wherein the buffer component (6) is movably connected to the mounting component (1), the drawstring is passed through the buffer component (6), and the buffer component (6) can swing relative to the mounting component (1) to achieve buffering of the drawstring.

6. The belt conveyor device according to claim 5, characterized in that: The buffer component (6) comprises: a buffer rotating shaft (69), wherein a first end of the buffer rotating shaft (69) is fixedly connected to the mounting assembly (1), and a second end of the buffer rotating shaft (69) is rotatably connected to a first guide member (61); A second swinging member (62), the second swinging member (62) being rotatably connected to the buffer rotating shaft (69); A second guide member (64), the second guide member (64) is rotatably connected to the second end of the second swing member (62).

7. The belt conveyor device according to claim 6, characterized in that: The buffer component (6) further comprises: A locking member (67), wherein the locking member (67) is connected to a first end of the buffer shaft (69); A second elastic member (65), wherein the second elastic member (65) is coaxially sleeved on the buffer shaft (69), one end of the second elastic member (65) can abut against the second swing member (62), and the other end can abut against the locking member (67).

8. The belt conveyor device according to any one of claims 1 to 4, characterized in that: The belt conveyor device also includes: An auxiliary conveying component (7), wherein the auxiliary conveying component (7) is rotatably connected to the mounting component (1), and the auxiliary conveying component (7) contacts the drawstring to convey the drawstring.

9. The belt conveyor device according to claim 8, characterized in that: The auxiliary conveying component (7) comprises: A driving member (71), the driving member (71) being connected to the mounting assembly (1); An auxiliary conveying member (73), wherein the first end of the auxiliary conveying member (73) is transmission-connected to the output end of the driving member (71), the driving member (71) rotates to drive the auxiliary conveying member (73) to rotate, and the second end of the auxiliary conveying member (73) is in frictional contact with the drawstring.

10. A cigarette packing machine, characterized in that: It comprises a cigarette box packaging machine body and a belt conveying device as claimed in any one of claims 1 to 9, wherein the belt conveying device is arranged on the cigarette box packaging machine body.

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