A cigarette packet conveying device and a packing machine

Abstract

The present application belongs to the technical field of cigarette equipment, and discloses a cigarette package conveying device and a packaging machine. The cigarette package conveying device comprises a cigarette package output wheel and a cigarette package receiving wheel. The cigarette package output wheel comprises a first rotating shaft, a first cam assembly and a first adsorption assembly; the cigarette package receiving wheel comprises a receiving mother wheel and a receiving sub-wheel, the receiving mother wheel comprises a second rotating shaft and a second cam assembly, and the receiving sub-wheel abuts against the second cam assembly. In the process of cigarette package handover, after the receiving sub-wheel contacts the cigarette package, the receiving sub-wheel moves to the side close to the second rotating shaft and the first adsorption assembly moves to the side away from the first rotating shaft through the action of the first cam assembly and the second cam assembly. In the process of rotation of the cigarette package output wheel and the cigarette package receiving wheel, the distance between the receiving sub-wheel and the first adsorption assembly remains unchanged, so that the cigarette package output wheel and the cigarette package receiving wheel complete the handover of the cigarette package in a non-stop state, the operation efficiency and stability of the cigarette package conveying device are improved, and the service life thereof is prolonged.

Description

Technical Field

[0001] This invention relates to the field of cigarette equipment technology, and in particular to a cigarette pack conveying device and packaging machine. Background Technology

[0002] Cigarette packaging equipment widely uses rotary conveyors to transfer materials such as cigarette packs, cigarette bags, and cartons, and performs packaging tasks during the transfer process. When the material center curves of the two rollers intersect or are tangent, material transfer can be achieved through staggered clamping or negative pressure suction and release. When the material center curves are divergent, the material needs to undergo radial displacement between the material center curves of the two rollers. Since the two rollers are rotating in opposite directions, existing technologies employ intermittent motion mechanisms to achieve material transfer. During the pauses in the intermittent motion, when the two rollers are stationary, the radial displacement of the material is completed, and the set packaging actions are performed.

[0003] In existing technologies, commonly used intermittent motion mechanisms include Geneva mechanisms (Maltese mechanisms) and cam indexing mechanisms. Taking the packaging process of cigarette pack film in existing technology as an example: the cigarette pack is input from the upstream machine via a rotary wheel or synchronous belt, and is pushed into the intermittently moving packaging wheel by a push rod during the first pause of the intermittent motion. The packaging film with the attached strap is cut to a fixed length by a flying knife mechanism and pushed into the packaging wheel mold along with the cigarette pack, completing the folding of the front corners at both ends of the cigarette pack. During the second pause of the packaging wheel's rotation, the long side of the packaging film is folded and the seam is heat-sealed. During the third pause, the other corner at both ends of the cigarette pack is folded. During the fourth pause, the packaging film at both ends of the cigarette pack is heat-sealed, completing the entire packaging process of the cigarette pack film.

[0004] Existing packaging machines have significant inertial forces and impacts during operation. Frequent stops and starts during operation can easily lead to stress concentration and fatigue failure, causing vibration and noise, and preventing the equipment from achieving high-speed, efficient, and stable movement. Summary of the Invention

[0005] The purpose of this invention is to provide a cigarette pack conveying device and a packaging machine. The cigarette pack conveying device enables smooth and stable transfer of cigarette packs between rollers without interruption, improving the operating efficiency and stability of the cigarette pack conveying device, reducing vibration and noise, and extending the service life of the equipment.

[0006] To achieve this objective, the present invention adopts the following technical solution: On the one hand, a cigarette pack conveying device is provided, comprising: The cigarette pack output wheel includes a first rotating shaft, a first cam assembly, and a first adsorption assembly. The first rotating shaft is rotatable around its own axis. The first cam assembly is sleeved on the first rotating shaft and fixedly connected to the housing of the packaging machine. The first adsorption assembly is rotatably connected to the first rotating shaft and rotates synchronously with the first rotating shaft. The first adsorption assembly abuts against the first cam assembly and is used to adsorb cigarette packs. A cigarette pack receiving wheel includes a receiving mother wheel and a receiving daughter wheel. The receiving mother wheel includes a second rotating shaft and a second cam assembly. The second rotating shaft is arranged parallel to the first rotating shaft and can rotate around its own axis. The second cam assembly is sleeved on the second rotating shaft and fixedly connected to the housing. The receiving daughter wheel is slidably connected to the second rotating shaft along the radial direction of the second rotating shaft and rotates synchronously with the second rotating shaft. The receiving daughter wheel abuts against the second cam assembly. After the receiving sub-wheel contacts the tobacco pack, the receiving sub-wheel moves towards the side closer to the second rotating shaft, and the first adsorption component moves away from the first rotating shaft, while the distance between the receiving sub-wheel and the first adsorption component remains unchanged.

[0007] Optionally, the first cam assembly includes a first cam and a second cam, both of which are sleeved on the first rotating shaft and fixedly connected to the housing. The cigarette pack output wheel also includes a first wheel body. The first adsorption assembly includes a swing arm, a push rod, and a first suction cup. The first wheel body is connected to the first rotating shaft. The first suction cup is fixedly connected to the swing arm and rotatably connected to the push rod. The push rod is slidably connected to the first rotating shaft along the radial direction of the first wheel body. The swing arm abuts against the first cam, and the push rod abuts against the second cam.

[0008] Optionally, two of each of the first wheel, the push rod, and the second cam are provided, and they are arranged in a one-to-one correspondence. The two second cams are symmetrically arranged with respect to the first cam and the push rod.

[0009] Optionally, the second cam assembly includes a first conjugate cam, and the receiving sub-wheel includes a sub-wheel body, a first swing sleeve, a third rotating shaft, a first gear, and a connecting rod. The first swing sleeve is connected to the second rotating shaft and rotates synchronously with the second rotating shaft. Two first connecting rods are provided on the first swing sleeve, and the two first connecting rods respectively abut against the main cam and the secondary cam of the first conjugate cam. The third rotating shaft is connected to the first swing sleeve, and the swing of the first swing sleeve can drive the third rotating shaft to rotate around its own axis. The first gear and the connecting rod are both provided in the sub-wheel body. A first rack is provided on the connecting rod. The first gear is fixedly connected to the third rotating shaft, and the first rack meshes with the first gear and slides radially along the second rotating shaft to the sub-wheel body.

[0010] Optionally, the receiving sub-wheel further includes a first clamping assembly, which includes two clamping plates. The first ends of the two clamping plates are rotatably connected to the sub-wheel body, and the second ends of the two clamping plates can move closer to or further away from each other.

[0011] Optionally, a second rack is provided on both opposite sides of the connecting rod, and the first clamping assembly further includes two second gears. The clamping plate, the second gear and the second rack correspond one-to-one. The second gear and the second rack are meshed and connected, and the clamping plate is connected to the second gear.

[0012] Optionally, the receiving sub-wheel further includes a second clamping assembly, the second clamping assembly including a jaw, the first end of the jaw being rotatably connected to the sub-wheel body, and the second end of the jaw being able to abut against the side of the cigarette pack facing away from the second rotating shaft.

[0013] Optionally, the second cam assembly further includes a second conjugate cam, and the receiving sub-wheel further includes a second swing bushing. The second swing bushing is coaxially arranged with the third rotating shaft and fixedly connected to the sub-wheel body. The second swing bushing is provided with two second connecting rods, which respectively abut against the main cam and the secondary cam of the second conjugate cam. The second swing bushing is coaxially arranged with the sub-wheel body, and the swing of the second swing bushing can drive the sub-wheel body to rotate around its own axis.

[0014] On the other hand, a packaging machine is provided, including a box and the aforementioned cigarette pack conveying device, wherein the first cam assembly and the second cam assembly are both fixedly connected to the box.

[0015] Optionally, the packaging machine further includes a die-cutting mechanism, on which a single packaging film is disposed, and the first adsorption component is capable of adsorbing the single packaging film and making the single packaging film adsorbed by the first adsorption component cover the side of the cigarette pack facing away from the cigarette pack output wheel; The cigarette pack conveying device also includes a folding and heat sealing mechanism, which is used to fold and heat seal the single packaging film.

[0016] The beneficial effects of this invention are: This invention provides a cigarette pack conveying device and a packaging machine. The packaging machine includes a housing and a cigarette pack conveying device. The cigarette pack conveying device includes a cigarette pack output wheel and a cigarette pack receiving wheel. The cigarette pack output wheel includes a first rotating shaft, a first cam assembly, and a first adsorption assembly. The first rotating shaft is rotatable around its own axis. The first cam assembly is sleeved on the first rotating shaft and fixedly connected to the housing of the packaging machine. The first adsorption assembly is rotatably connected to the first rotating shaft and rotates synchronously with the first rotating shaft. The first adsorption assembly abuts against the first cam assembly and is used to adsorb cigarette packs. The cigarette pack receiving wheel includes a receiving mother wheel and a receiving daughter wheel. The receiving mother wheel includes a second rotating shaft and a second cam assembly. The second rotating shaft is parallel to the first rotating shaft and is rotatable around its own axis. The second cam assembly is sleeved on the second rotating shaft and fixedly connected to the housing. The receiving daughter wheel is slidably connected to the second rotating shaft along the radial direction of the second rotating shaft and rotates synchronously with the second rotating shaft. The receiving daughter wheel abuts against the second cam assembly. The cigarette pack output wheel transports the cigarette packs to the cigarette pack receiving wheel. During the cigarette pack transfer, after the receiving wheel contacts the cigarette pack, the first cam assembly and the second cam assembly cause the receiving wheel to move closer to the second rotating shaft, while the first adsorption assembly moves away from the first rotating shaft. As the cigarette pack output wheel and the cigarette pack receiving wheel rotate, the distance between the receiving wheel and the first adsorption assembly remains constant. Even when the cigarette pack output wheel and the cigarette pack receiving wheel are rotating continuously, the distance between the receiving wheel and the first adsorption assembly remains constant, thus completing the cigarette pack transfer. The cigarette pack conveying device of this embodiment enables smooth and stable transfer of cigarette packs between the rotating wheels without interruption, improving the operating efficiency and stability of the cigarette pack conveying device, reducing vibration and noise, and extending the service life of the cigarette pack conveying device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the packaging machine provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the working process of the packaging machine provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a single packaging film involved in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the cigarette pack output wheel according to an embodiment of the present invention; Figure 5 This is an exploded view of the first bearing seat, the first cam seat, the first positioning plate, and the first connecting key involved in the embodiments of the present invention; Figure 6 yes Figure 1 Cross-sectional view of CC in the middle; Figure 7 yes Figure 6 A magnified 3D view of point A in the middle; Figure 8 yes Figure 1 Cross-sectional view of DD in the middle; Figure 9 yes Figure 8 A 3D magnified view of point B in the middle; Figure 10 This is a schematic diagram of the connecting rod structure involved in the embodiment of the present invention; Figure 11 This is an exploded view of the tobacco pack transfer wheel involved in the embodiments of the present invention; Figure 12 yes Figure 1 Cross-sectional view of AA in the middle; Figure 13 yes Figure 1 Cross-sectional view of BB in the middle; Figure 14 This is an exploded view of the die-cutting mechanism involved in the embodiments of the present invention; Figure 15 This is a schematic diagram of the long-side folding wheel involved in the embodiments of the present invention; Figure 16 yes Figure 15 Cross-sectional view of the EE; Figure 17 This is a schematic diagram of the structure of the grid-type folder and the long-side folder involved in the embodiments of the present invention; Figure 18 This is a schematic diagram of the angled heat sealing wheel involved in the embodiments of the present invention; Figure 19 yes Figure 18 Cross-sectional view of FF in the middle; Figure 20 This is an exploded view of the fourth link, fifth link, sixth link, rotating angle lever, and first soldering iron involved in the embodiments of the present invention; Figure 21 This is a motion trajectory diagram of the fourth link, fifth link, sixth link, rotating angler, and first soldering iron involved in the embodiments of the present invention; Figure 22 This is a schematic diagram of the end heat sealing wheel involved in the embodiment of the present invention; Figure 23 yes Figure 22 Cross-sectional view of GG.

[0018] In the picture: 1. Tobacco pack output wheel; 11. First rotating shaft; 12. First cam assembly; 121. First cam; 122. Second cam; 13. First suction assembly; 131. Swing rod; 132. Push rod; 133. First suction cup; 134. First roller; 135. Connecting air pipe; 14. First wheel body; 141. Rib; 1411. Connecting air hole; 142. Wheel rim air hole; 143. First suction cup connecting air hole; 15. First bearing seat; 151. Keyway; 16. First cam seat; 17. First positioning plate; 18. First connecting key; 19. Third gear; 110. First fastening plate; 111. First hub; 2. Tobacco pack receiving wheel; 21. Receiving female wheel; 211. Second rotating shaft; 212. Second cam assembly; 2121. First conjugate cam; 2122. Second conjugate cam; 22. Receiving female wheel; 221. Female wheel body; 2211. Third cam; 2212. Fourth cam; 222. First swing bushing; 223. Third rotating shaft; 2231. Fourth gear; 224. First gear; 225. Connecting rod; 2251. First rack; 2252. 226. Second rack; 227. Clamping plate; 228. Second gear; 229. Clamping jaw; 2210. Second roller; 220. Second swing bushing; 2210. Box body; 23. Cam support; 24. Second bearing seat; 25. Second cam seat; 26. Second wheel body; 27. Third wheel body; 28. First wheel disc; 29. ​​Fixed support shaft; 210. Sixth gear; 2101. Second fastening disc; 2102. Second wheel hub; 2103. Second positioning disc; 3. Die-cutting mechanism; 31. Anvil roller shaft; 32. Anvil roller body; 321. Radial air hole; 322. Axial air hole; 33. Third bearing seat; 34. Third fastening plate; 35. Air distribution plate; 351. Positive pressure air distribution groove; 352. Negative pressure air distribution groove; 36. Protective cover; 361. Positive pressure air inlet; 362. Negative pressure air inlet; 37. Compression spring; 38. Pin shaft; 39. Anvil roller cover plate; 310. Knife roller shaft; 311. Strap knife; 312. Cutting knife; 313. Anvil plate; 314. Knife roller body; 315. Fourth bearing seat; 316. Fourth fastening plate; 317. Seventh gear; 318. Eighth gear; 4. Packaging film roll; 5. Input mechanism; 6. Cigarette pack transfer wheel; 61. Fourth rotating shaft; 62. Second suction cup; 621. Suction hole; 63. Ninth gear; 64. Fourth wheel body; 65. Gas distribution seat; 651. Positive pressure gas inlet; 652. Negative pressure gas inlet; 653. Positive pressure gas inlet groove; 654. Negative pressure gas inlet groove; 66. Connecting plate; 67. Fifth fastening plate; 7. Long-side folding wheel; 71. Fifth pivot; 72. Long-side folding mechanism; 73. Fifth wheel body; 74. Fifth cam; 75. Third connecting rod; 76. First swing shaft; 77. Third hub; 78. Second wheel disc; 79. Fifth bearing seat; 710. Third cam seat; 711. Sixth fastening disc; 712. Third positioning disc; 713. Tenth gear; 8. Angle-folding heat-sealing wheel; 81. Sixth pivot shaft; 82. Fourth connecting rod; 83. Fifth connecting rod; 84. Sixth connecting rod; 85. Second swing shaft; 86. Third swing shaft; 87. Seventh connecting rod; 88. Sixth cam; 89. Third conjugate cam; 810. Rotating angle-folding device; 811. Sixth wheel body; 812. First soldering iron; 813. Fourth hub; 814. Third wheel disc; 815. Sixth bearing seat; 816. Fourth cam seat; 817. Seventh fastening disc; 818. Fourth positioning disc; 819. Eleventh gear; 820. Protective shell; 9. End heat sealing wheel; 91. Seventh rotating shaft; 92. Second soldering iron; 93. Third soldering iron; 94. Seventh wheel body; 95. Eighth wheel body; 96. Guide rod; 97. Slider; 98. Seventh cam; 99. Seventh bearing seat; 910. Fifth cam seat; 911. Fifth positioning plate; 912. Twelfth gear; 913. Fifth hub; 1001, Grid-type folder; 1011, Plow-type folder; 100. Box body; 200. Cigarette pack; 300. Single packaging film; 400. Frame; 401. Gas connection hole. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 23 As shown, this embodiment provides a packaging machine, which includes a housing 100 and a cigarette pack conveying device. The cigarette pack conveying device includes a cigarette pack output wheel 1 and a cigarette pack receiving wheel 2. The cigarette pack output wheel 1 includes a first rotating shaft 11, a first cam assembly 12, and a first adsorption assembly 13. The first rotating shaft 11 is rotatable around its own axis. The first cam assembly 12 is sleeved on the first rotating shaft 11 and fixedly connected to the housing 100 of the packaging machine. The first adsorption assembly 13 is rotatably connected to the first rotating shaft 11 and rotates synchronously with the first rotating shaft 11. The first adsorption assembly 13 abuts against the first cam assembly 12 and is used to adsorb cigarette packs 200. The cigarette pack receiving wheel 2 includes a receiving mother wheel 21 and a receiving daughter wheel 22. The receiving mother wheel 21 includes a second rotating shaft 211 and a second cam assembly 212. The second rotating shaft 211 is arranged parallel to the first rotating shaft 11 and can rotate around its own axis. The second cam assembly 212 is sleeved on the second rotating shaft 211 and fixedly connected to the housing 100. The receiving daughter wheel 22 is slidably connected to the second rotating shaft 211 along the radial direction of the second rotating shaft 211 and rotates synchronously with the second rotating shaft 211. The receiving daughter wheel 22 abuts against the second cam assembly 212.

[0024] The cigarette pack output wheel 1 transports cigarette packs 200 to the cigarette pack receiving wheel 2. During the transfer of cigarette packs 200, after the receiving wheel 22 contacts the cigarette pack 200, the first cam assembly 12 and the second cam assembly 212 cause the receiving wheel 22 to move closer to the second rotating shaft 211, while the first adsorption assembly 13 moves away from the first rotating shaft 11. During the rotation of the cigarette pack output wheel 1 and the cigarette pack receiving wheel 2, the distance between the receiving wheel 22 and the first adsorption assembly 13 remains constant. Even with the continuous operation of the cigarette pack output wheel 1 and the cigarette pack receiving wheel 2, the distance between the receiving wheel 22 and the first adsorption assembly 13 remains unchanged, thus completing the transfer of cigarette packs 200. The cigarette pack conveying device of this embodiment can achieve a smooth and stable transfer of cigarette packs 200 between the wheels without stopping, improving the operating efficiency and stability of the cigarette pack conveying device, reducing vibration and noise, and extending the service life of the cigarette pack conveying device. Specifically, the first rotating shaft 11 and the second rotating shaft 211 are both rotatably mounted on the packaging machine's housing 100 and frame 400 via bearings.

[0025] Optionally, the cigarette pack conveying device also includes a die-cutting mechanism 3, on which a single packaging film 300 is provided. The rim air holes 142 provided on the two rims of the first wheel body 14 can pick up the single packaging film 300 from the die-cutting mechanism 3 and make the single packaging film 300 cover the side of the cigarette pack 200 facing away from the cigarette pack output wheel 1, so as to package the cigarette pack 200.

[0026] Optionally, such as Figure 1 , Figures 4 to 7As shown, the first cam assembly 12 includes a first cam 121 and a second cam 122. Both the first cam 121 and the second cam 122 are sleeved on the first rotating shaft 11 and fixedly connected to the housing 100. The cigarette pack output wheel 1 also includes a first wheel body 14. The first adsorption assembly 13 includes a swing rod 131, a push rod 132, and a first suction cup 133. The first wheel body 14 is connected to the first rotating shaft 11 and rotates synchronously with the first rotating shaft 11. The first suction cup 133 is fixedly connected to the swing rod 131 and rotatably connected to the push rod 132. The push rod 132 slides radially along the first rotating shaft 11 and is connected to the first wheel body 14. The swing rod 131 abuts against the first cam 121, and the push rod 132 abuts against the second cam 122. The first cam 121 and the second cam 122 are fixed in place. The first wheel body 14 rotates synchronously with the first rotating shaft 11, driving the first adsorption assembly 13 to rotate synchronously. The first suction cup 133 is used to adsorb the cigarette pack 200. When the first adsorption component 13 rotates with the first rotating shaft 11, under the action of the contour line of the first cam 121, the rocker arm 131 swings regularly, thereby driving the first suction cup 133 to swing regularly, thus changing the angle of the first suction cup 133; under the action of the contour line of the second cam 122, the push rod 132 makes regular radial reciprocating motion, thereby driving the first suction cup 133 to make regular radial reciprocating motion, that is, to extend or retract. Through the combined action of the rocker arm 131 and the push rod 132, the first suction cup 133 can realize the set periodic action of "retracting-extending-swinging-swinging".

[0027] Specifically, both the first cam 121 and the second cam 122 are provided with cam grooves, and the rocker arm 131 and the push rod 132 are rotatably connected with first rollers 134, which are rolled within their respective cam grooves. By providing the first rollers 134, the friction between the rocker arm 131 and the first cam 121, and between the push rod 132 and the second cam 122, is reduced. Furthermore, the rolling of the first rollers 134 within the cam grooves improves the stability of the rocker arm 131 and the push rod 132's swing. The push rod 132 is slidably connected to the rib 141 of the first wheel body 14 via a linear bearing. The first adsorption assembly 13 also includes a connecting air pipe 135. The connecting air pipe 135 communicates with the first suction cup 133 and the external air distribution groove, providing negative pressure to the first suction cup 133.

[0028] Optionally, two of each of the first wheel 14, push rod 132, and second cam 122 are provided and are arranged in a one-to-one correspondence. The two second cams 122 are symmetrically arranged about the first cam 121 and push rod 132. This arrangement makes the swing of the swing rod 131 and push rod 132 more stable, thereby improving the stability of the movement of the first suction cup 133. The two wheels of the first wheel 14 are fixedly connected by ribs 141 and screws, and the rims of the two wheels are machined with rim air holes 142 to symmetrically and stably adsorb single packaging film 300.

[0029] Optionally, the cigarette pack output wheel 1 further includes a first bearing seat 15 and a first cam seat 16. The first bearing seat 15 is fixed to the housing 100 by screws and locating pins and is rotatably connected to the first rotating shaft 11 via a bearing. The first cam seat 16 is sleeved on the first bearing seat 15 and fixedly connected to the first bearing seat 15. The first cam 121 and the second cam 122 are both fixedly connected to the first cam seat 16 by screws.

[0030] Specifically, the cigarette pack output wheel 1 also includes a first positioning disc 17 and a first connecting key 18. A keyway 151 is provided on the first bearing seat 15. The first connecting key 18 is connected to the first cam seat 16 and engaged within the keyway 151 to connect the first bearing seat 15 and the first cam seat 16. Both the first connecting key 18 and the keyway 151 are semi-circular. The first connecting key 18 is installed at one end of the first cam seat 16 along the axial direction of the first rotating shaft 11 and is inserted into the keyway 151 along the axial direction of the first rotating shaft 11. The first positioning disc 17 is located at the end of the first cam seat 16 away from the first connecting key 18. The first positioning disc 17 abuts against the end of the first cam seat 16 away from the first connecting key 18 and is connected to the first bearing seat 15 by screws, thereby achieving the positioning of the first cam seat 16 along the axial direction of the first rotating shaft 11. In this embodiment, four first connecting keys 18 and four keyways 151 are evenly distributed along the circumference of the first rotating shaft 11 and are engaged in a one-to-one correspondence.

[0031] Optionally, the cigarette pack output wheel 1 also includes a third gear 19 and a first fastening plate 110. The third gear 19 is fixedly connected to one end of the first rotating shaft 11. A flange is provided on the first rotating shaft 11. The first fastening plate 110 is provided on the side of the third gear 19 away from the flange. The first fastening plate 110 is connected to the flange by screws and presses the third gear 19 to be fixed.

[0032] Optionally, the cigarette pack output wheel 1 also includes a first hub 111. The first hub 111 is fixed to the first rotating shaft 11 by a second connecting key. Two first wheel bodies 14 are fixedly connected by ribs 141. One of the first wheel bodies 14 is fixedly connected to the first hub 111 by screws, so as to drive the first wheel body 14 to rotate with the first rotating shaft 11.

[0033] Optionally, each of the two first wheel bodies 14 is provided with a rim air hole 142, and the rib plate 141 is provided with a connecting air hole 1411, which connects the rim air holes 142 on the two first wheel bodies 14. The rim air holes 142 are used to adsorb single sheets of packaging film 300. The first wheel body 14 is also provided with a first suction cup connecting air hole 143, which connects to the rim air hole 142. The connecting air pipe 135 connects to the first suction cup 133 and the first suction cup connecting air hole 143. The frame 400 is provided with a gas connection hole 401, which connects to the connecting air hole 1411 and the external gas distribution groove.

[0034] Optionally, such as Figure 1 , Figures 8 to 10 As shown, the second cam assembly 212 includes a first conjugate cam 2121, and the receiving wheel 22 includes a wheel body 221, a first swing sleeve 222, a third rotating shaft 223, a first gear 224, and a connecting rod 225. The first swing sleeve 222 is connected to the second rotating shaft 211 and rotates synchronously with the second rotating shaft 211. The first swing sleeve 222 is provided with two first connecting rods and a third roller. The two first connecting rods abut against the main cam of the first conjugate cam 2121 through the two third rollers. The receiving sub-wheel and secondary cam, the third rotating shaft 223 is connected to the first swinging bushing 222. The swinging of the first swinging bushing 222 can drive the third rotating shaft 223 to rotate around its own axis. The first gear 224 and the connecting rod 225 are both set inside the sub-wheel body 221. The connecting rod 225 is provided with a first rack 2251. The first gear 224 is fixedly connected to the third rotating shaft 223. The first rack 2251 is meshed with the first gear 224 and is slidably connected to the sub-wheel body 221 along the radial direction of the second rotating shaft 211. When the receiving sub-wheel 22 rotates with the second rotating shaft 211, under the action of the contour line of the first conjugate cam 2121, the first swinging bushing 222 swings and drives the third rotating shaft 223 to swing regularly around its own axis, thereby driving the first gear 224 to swing regularly. The swinging of the first gear 224 drives the first rack 2251 to move radially along the second rotating shaft 211, thereby realizing the extension and retraction of the connecting rod 225.

[0035] Specifically, multiple receiving sub-wheels 22 are provided, and the multiple receiving sub-wheels 22 are evenly distributed and spaced around the second rotating shaft 211. In this embodiment, eight receiving sub-wheels 22 are provided. The rotation of the second rotating shaft 211 drives the receiving sub-wheels 22 to rotate around the second rotating shaft 211. A fifth gear is provided on the first swing bushing 222, and a fourth gear 2231 is provided on the third rotating shaft 223. The fourth gear 2231 is meshed with the fifth gear, and the diameter of the fifth gear is larger than the diameter of the fourth gear 2231. In this embodiment, the fifth gear is a sector gear. By providing the fifth gear and the fourth gear 2231, the swing of the first swing bushing 222 can accelerate the rotation of the third rotating shaft 223 around its own axis, realizing the rapid swing of the third rotating shaft 223. A guide groove extending radially along the second rotating shaft 211 is provided inside the sub-wheel body 221, and the connecting rod 225 is slidably connected in the guide groove. In this embodiment, the guide groove is a dovetail guide groove. The sub-wheel body 221 is provided with mounting holes for mounting the first gear 224 and the connecting rod 225. The receiving sub-wheel 22 also includes a sub-wheel cover plate, which is detachably connected to the sub-wheel body 221 and seals the mounting holes.

[0036] Optionally, the receiving wheel 22 further includes a first clamping assembly, which includes two clamping plates 226. The first ends of the two clamping plates 226 are rotatably connected to the wheel body 221. The second ends of the two clamping plates 226 can move closer to each other or further away from each other. When the second ends of the two clamping plates 226 move closer to each other, the two clamping plates 226 clamp the tobacco pack 200 and fix the tobacco pack 200. When the second ends of the two clamping plates 226 move further away from each other, the two clamping plates 226 release the tobacco pack 200.

[0037] Optionally, a second rack 2252 is provided on both opposite sides of the receiving rod 225. The first clamping assembly also includes two second gears 227. The clamping plate 226, the second gears 227, and the second racks 2252 correspond one-to-one. The second gears 227 and the second racks 2252 are meshed together, and the clamping plate 226 is connected to the second gears 227. The movement of the receiving rod 225 drives the movement of the second gears 227, thereby driving the second gears 227 to rotate, which in turn drives the two clamping plates 226 to perform regular opening and closing movements. With this configuration, no additional power is needed to drive the two clamping plates 226 to open and close, reducing the number of components in the cigarette pack receiving wheel 2 and making the overall structure of the cigarette pack receiving wheel 2 more compact. Specifically, the receiving sub-wheel 22 also includes a box body 2210. The box body 2210 has a cuboid structure. The box body 2210 is fixedly connected to the outer wall of the sub-wheel body 221. The two second gears 227 are rotatably connected to both opposite sides of the box body 2210.

[0038] Optionally, the receiving wheel 22 further includes a second clamping assembly, which includes a jaw 228. The first end of the jaw 228 is rotatably connected to the wheel body 221, and the second end of the jaw 228 can abut against the side of the cigarette pack 200 facing away from the second rotating shaft 211. By setting the jaw 228, the cigarette pack is gripped, and the fixing strength of the cigarette pack 200 and the single packaging film 300 is improved.

[0039] Optionally, two grippers 228 are provided, each rotatably connected to opposite sides of the housing 2210. The second gripping assembly also includes a third cam 2211 and a fourth cam 2212. The third cam 2211 is fixedly connected to the frame 400, and the fourth cam 2212 is fixedly connected to the housing 100. The third cam 2211 and the fourth cam 2212 each correspond to one gripper 228, and the grippers 228 are slidably disposed in the corresponding cam grooves of the third cam 2211 and the fourth cam 2212. With this configuration, when the receiving wheel 22 rotates, under the action of the third cam 2211 and the fourth cam 2212, the grippers 228 perform regular opening and closing movements, thereby clamping or releasing the cigarette pack 200.

[0040] Specifically, a second roller 2281 is provided on the gripper 228. The second roller 2281 is rotatably connected to the gripper 228 and is rolled in the cam grooves corresponding to the third cam 2211 and the fourth cam 2212. The cigarette pack receiving wheel 2 also includes a cam support 23, which is fixedly connected to the housing 100, and the fourth cam 2212 is fixedly connected to the cam support 23.

[0041] Optionally, the second cam assembly 212 further includes a second conjugate cam 2122, and the receiving wheel 22 further includes a second swing sleeve 229. The second swing sleeve 229 is coaxially arranged with the third rotating shaft 223 and fixedly connected to the wheel body 221. The second swing sleeve 229 is provided with two second connecting rods and two fourth rollers. The two fourth rollers and two second connecting rods respectively abut against the main cam and the auxiliary cam of the second conjugate cam 2122. The second swing sleeve 229 is coaxially arranged with the wheel body 221, and the swing of the second swing sleeve 229 can drive the wheel body 221 to rotate around its own axis. When the receiving wheel 22 rotates with the second rotating shaft 211, under the action of the contour line of the second conjugate cam 2122, the second swing sleeve 229 swings and drives the wheel body 221 to swing regularly around its own axis, thereby causing the receiving wheel 22 to swing regularly as a whole, thereby changing the angle of the receiving rod 225. During the handover process of the cigarette pack 200, the receiving rod 225 is always kept parallel to the first suction cup 133.

[0042] Specifically, the second swing sleeve 229 is mounted on the third rotating shaft 223 via bearings. The second swing sleeve 229 is provided with a semi-circular keyway, and the sub-wheel body 221 is provided with a semi-circular key. The semi-circular key is inserted into the semi-circular keyway, and the sub-wheel body 221 and the second swing sleeve 229 are locked and fixed along the axial direction of the third rotating shaft 223 by a nut.

[0043] Optionally, the cigarette pack receiving wheel 2 further includes a second bearing seat 24 and a second cam seat 25. The second bearing seat 24 is fixed to the housing 100 by screws and pins and is rotatably connected to the second rotating shaft 211 via a bearing. The second cam seat 25 is sleeved on the second bearing seat 24 and fixedly connected to the second bearing seat 24. The first conjugate cam 2121 and the second conjugate cam 2122 are both fixedly connected to the second cam seat 25 by screws.

[0044] Optionally, the cigarette pack receiving wheel 2 further includes a second wheel body 26, a third wheel body 27, a first wheel disc 28, and a fixed support shaft 29. The second wheel body 26, the third wheel body 27, and the first wheel disc 28 are sequentially arranged along the axial direction of the second rotating shaft 211 and are all connected to the second cam seat 25 via bearings. The third rotating shaft 223 is rotatably connected to the second wheel body 26, the third wheel body 27, and the first wheel disc 28 via bearings; this arrangement improves the stability of the third rotating shaft 223 installation. The fixed support shaft 29 is fixedly connected to the third wheel body 27 and the first wheel disc 28. The first swing sleeve 222 is rotatably connected to the fixed support shaft 29.

[0045] Optionally, the cigarette pack receiving wheel 2 further includes a sixth gear 210 and a second fastening disc 2101. The sixth gear 210 is fixedly connected to one end of the second rotating shaft 211, which is provided with a flange. The second fastening disc 2101 is located on the side of the sixth gear 210 away from the flange, and is connected to the flange by screws to press and fix the sixth gear 210.

[0046] Optionally, the cigarette pack receiving wheel 2 also includes a second hub 2102 and a second positioning disc 2103. The second hub 2102 is fixed to the second rotating shaft 211 via a third connecting key. The second wheel body 26 is fixedly connected to the second hub 2102 by screws to transmit power torque to the second wheel body 26, ensuring that it rotates together with the second rotating shaft 211. One end of the second cam seat 25 is inserted into the second bearing seat 24 via a fourth connecting key. The second positioning disc 2103 is disposed at the other end of the second cam seat 25, and the second positioning disc 2103 abuts against the end of the second cam seat 25 away from the fourth connecting key and is connected to the second bearing seat 24 by screws, thereby achieving the positioning of the second cam seat 25 along the axial direction of the second rotating shaft 211.

[0047] Optionally, such as Figure 1 , Figure 13 , Figure 14 As shown, the die-cutting mechanism 3 includes anvil roller shaft 31 and anvil roller body 32. The anvil roller shaft 31 is rotatably connected to the housing 100, and the anvil roller body 32 is fixedly connected to the anvil roller shaft 31. The anvil roller body 32 is correspondingly arranged with the first adsorption component 13. The anvil roller body 32 can adsorb a single packaging film 300 and make the single packaging film 300 cover the side of the cigarette pack 200 facing away from the cigarette pack output wheel 1, transferring the single packaging film 300 onto the cigarette pack 200.

[0048] Specifically, the die-cutting mechanism 3 also includes a third bearing seat 33 and a third fastening plate 34. The third bearing seat 33 is fixed to the housing 100 by screws. The anvil roller shaft 31 is rotatably connected to the third bearing seat 33 via a bearing. The anvil roller body 32 is fixedly connected to the anvil roller shaft 31 via the third fastening plate 34.

[0049] Optionally, the die-cutting mechanism 3 further includes an air distribution plate 35, a protective cover 36, a compression spring 37, and a pin 38. The protective cover 36, the air distribution plate 35, and the anvil roller body 32 are arranged sequentially along the axial direction of the anvil roller shaft 31. The protective cover 36 is fixedly connected to the third bearing seat 33. The air distribution plate 35 is connected to the protective cover 36 via the pin 38. A compression spring 37 is provided between the air distribution plate 35 and the protective cover 36, and the compression spring 37 presses the air distribution plate 35 against the anvil roller body 32 to ensure close contact between the two.

[0050] Optionally, the anvil roller body 32 is provided with radial air holes 321 and axial air holes 322. The radial air holes 321 communicate with the axial air holes 322. The air distribution plate 35 is provided with a positive pressure air distribution groove 351 and a negative pressure air distribution groove 352. The axial air holes 322 can communicate with either the positive pressure air distribution groove 351 or the negative pressure air distribution groove 352. The shapes of the positive pressure air distribution groove 351 and the negative pressure air distribution groove 352 are specifically set according to the on / off phase of the positive and negative pressure air. The protective cover 36 is provided with a positive pressure air inlet 361 and a negative pressure air inlet 362. The positive pressure air inlet 361 communicates with the positive pressure air distribution groove 351, and the negative pressure air inlet 362 communicates with the negative pressure air distribution groove 352. The die-cutting mechanism 3 also includes an anvil roller cover plate 39. The anvil roller cover plate 39 is connected to the end of the anvil roller body 32 away from the air distribution plate 35 and seals the axial air holes 322 to prevent air leakage.

[0051] Optionally, the cigarette pack conveying device also includes a packaging film roll 4. The packaging film roll 4 is rotatably connected to the housing 100. The anvil roller 32 can hold the packaging film roll 4. The die-cutting mechanism 3 also includes a cutting roller shaft 310, a belt-pulling knife 311, and a cutting knife 312. The belt-pulling knife 311 is a U-shaped knife. Both the belt-pulling knife 311 and the cutting knife 312 are fixedly connected to the cutting roller shaft 310. The belt-pulling knife 311 and the cutting knife 312 can abut against the anvil roller 32, thereby cutting the packaging film roll 4 into individual packaging films 300.

[0052] Specifically, an anvil plate 313 is fixedly connected to the anvil roller body 32. The pull-tab knife 311 and the cutting knife 312 abut against the anvil plate 313 to cut the pull-tab and the packaging film roll 4. The die-cutting mechanism 3 also includes a cutter roller body 314, a fourth bearing seat 315, and a fourth fastening plate 316. The fourth bearing seat 315 is fixed to the housing 100 by screws. The cutter roller shaft 310 is rotatably connected to the fourth bearing seat 315 via a bearing. The cutter roller body 314 is fixedly connected to the cutter roller shaft 310 via the fourth fastening plate 316.

[0053] Optionally, the die-cutting mechanism 3 further includes a seventh gear 317 and an eighth gear 318. The seventh gear 317 is fixedly connected to the anvil roller shaft 31, and the eighth gear 318 is fixedly connected to the cutter roller shaft 310. The seventh gear 317 is a double gear, and the eighth gear 318 meshes with the seventh gear 317. The seventh gear 317 is connected to an external drive mechanism to provide power. In other embodiments, the seventh gear 317 may also be a separate structure. The dimensions of the seventh gear 317 and the eighth gear 318 are set according to specific circumstances.

[0054] Optionally, such as Figure 1 , Figure 11 and Figure 12 As shown, the packaging machine also includes a cigarette pack input mechanism 5 and a cigarette pack transfer wheel 6. The cigarette pack input mechanism 5 is a conveyor belt that transports cigarettes horizontally. The cigarette pack transfer wheel 6 is used to pick up cigarette packs 200 from the cigarette pack input mechanism 5 and transport the cigarette packs 200 to the cigarette pack output wheel 1. Specifically, the cigarette pack transfer wheel 6 includes a fourth rotating shaft 61 and a second suction cup 62. The fourth rotating shaft 61 is rotatably connected to the housing 100. The second suction cup 62 is fixedly connected to the fourth rotating shaft 61. The second suction cup 62 can attract cigarette packs 200. A ninth gear 63 is fixedly connected to the fourth rotating shaft 61.

[0055] Optionally, the cigarette pack transfer wheel 6 also includes a fourth wheel body 64 and a gas distribution seat 65. The gas distribution seat 65 is fixedly connected to the housing 100. The fourth rotating shaft 61 is rotatably connected to the gas distribution seat 65 via bearings. The fourth wheel body 64 is rotatably mounted on the gas distribution seat 65. Four second suction cups 62 are arranged circumferentially along the axial direction of the fourth wheel body 64. The second suction cups 62 are provided with a plurality of suction holes 621, which are arranged in a trapezoidal shape. The gas distribution seat 65 is provided with a positive pressure gas inlet hole 651, a negative pressure gas inlet hole 652, a positive pressure gas inlet groove 653, and a negative pressure gas inlet groove 654. Among them, the positive pressure gas inlet hole 651 communicates with the positive pressure gas inlet groove 653, and the negative pressure gas inlet hole 652 communicates with the negative pressure gas inlet groove 654. Both the positive pressure gas inlet groove 653 and the negative pressure gas inlet groove 654 can correspond to the suction holes 621. Negative pressure air is drawn into the cigarette pack 200 through the negative pressure air inlet 652, the negative pressure air inlet groove 654, and the suction hole 621. The negative pressure air inlet groove 654 is also trapezoidal, corresponding to the distribution shape of the suction hole 621.

[0056] Optionally, the cigarette pack transfer wheel 6 also includes a connecting plate 66 and a fifth fastening plate 67. The fourth rotating shaft 61 is connected to the fourth wheel body 64 through the connecting plate 66 and the fifth fastening plate 67, so that the fourth wheel body 64 rotates synchronously with the fourth rotating shaft 61.

[0057] Optionally, such as Figure 1 , Figures 15 to 17As shown, the cigarette pack conveying device also includes a folding and heat-sealing mechanism, which is used to fold and heat-seal a single packaging film 300. Specifically, the folding and heat-sealing mechanism includes a long-side folding wheel 7, a corner heat-sealing wheel 8, and an end heat-sealing wheel 9. The long-side folding wheel 7, the corner heat-sealing wheel 8, and the end heat-sealing wheel 9 are all connected to the housing 100 and are arranged sequentially at intervals along the conveying direction of the cigarette pack receiving wheel 2, and each corresponds to a receiving sub-wheel 22.

[0058] Optionally, the folding and heat sealing mechanism further includes a grid folder 1001, which performs a large-area folding of the long side of a single packaging film 300. The grid folder 1001 is conventional technology in the art and will not be described in detail here. The grid folder 1001 is connected to the housing 100 and is located on the side of the long-side folding wheel 7 opposite to the angle heat-sealing wheel 8. The long-side folding wheel 7 includes a fifth rotating shaft 71 and a long-side folder 72. The fifth rotating shaft 71 is rotatably connected to the housing 100, and the long-side folder 72 is fixedly connected to the fifth rotating shaft 71. The long-side folder 72 is provided with a clearance groove. Rotation of the fifth rotating shaft 71 can drive the long-side folder 72 to rotate, and the clearance groove can pass through the grid folder 1001 to fold the long side of the single packaging film 300.

[0059] Furthermore, the long-side folder 72 is a pre-sealing soldering iron. After the long-side folder 72 completes the side folding of the single packaging film 300, it can heat the long-side overlap of the single packaging film 300 to achieve pre-sealing and prevent the folded single packaging film 300 from unfolding.

[0060] Optionally, the long-side folding wheel 7 also includes a fifth wheel body 73, a fifth cam 74, a third connecting rod 75, and a first swing shaft 76. The fifth wheel body 73 is fixedly connected to the fifth rotating shaft 71. The fifth cam 74 is sleeved on the fifth rotating shaft 71 and fixedly connected to the housing 100. The first swing shaft 76 is rotatably connected to the fifth wheel body 73 via a bearing. One end of the third connecting rod 75 is rotatably connected to the cam groove of the fifth cam 74 via a fifth roller, and the other end is rotatably connected to the first swing shaft 76. The long-side folder 72 is connected to the first swing shaft 76. The rotation of the fifth rotating shaft 71 drives the fifth wheel body 73, the third connecting rod 75, and the first swing shaft 76 to rotate synchronously. Under the action of the contour line of the fifth cam 74, the first swing shaft 76 swings regularly around its own axis, thereby driving the long-side folder 72 to rotate regularly. After the long-side folder 72 completes the folding of the single packaging film 300, it rotates to the side away from the cigarette pack 200, avoiding interference and collision with the cigarette pack 200 and other components. Specifically, four of each of the long-side folding device 72, the third connecting rod 75, and the first swing shaft 76 are provided, and they correspond one-to-one. The four are evenly distributed and spaced around the fifth rotating shaft 71.

[0061] Optionally, the long-side folding wheel 7 also includes a third hub 77, a second disc 78, a fifth bearing seat 79, a third cam seat 710, a sixth fastening disc 711, a third positioning disc 712, and a tenth gear 713. The fifth bearing seat 79 is fixed to the housing 100 by screws and pins and is rotatably connected to the fifth rotating shaft 71 via a bearing. The third cam seat 710 is sleeved on the fifth bearing seat 79 and fixedly connected to it. The fifth cam 74 is fixedly connected to the third cam seat 710 by screws. The second disc 78 is connected to the fifth wheel body 73, and the first swing shaft 76 is rotatably connected to the fifth wheel body 73 and the second disc 78 to improve the stability of the first swing shaft 76. The tenth gear 713 is fixedly connected to one end of the fifth rotating shaft 71. The fifth rotating shaft 71 is provided with a flange, and the sixth fastening disc 711 is provided on the side of the tenth gear 713 away from the flange. The sixth fastening disc 711 is connected to the flange by screws and presses the tenth gear 713 tightly and securely. The fixing method of the third wheel hub 77 and the third positioning plate 712 is similar to that of the fixing method of the second wheel hub 2102 and the second positioning plate 2103, and will not be described in detail here.

[0062] Optionally, such as Figure 1 , Figures 18 to 21 As shown, the folding and heat sealing mechanism also includes a fixed corner folder, which folds a single packaging film at a 300° angle. The fixed corner folder is conventional technology in this field and will not be described in detail here. The fixed corner folder is connected to the housing 100 and is located on the side of the folding heat sealing wheel 8 opposite to the long side folding wheel 7. The folding heat sealing wheel 8 includes a sixth rotating shaft 81, a fourth connecting rod 82, a fifth connecting rod 83, a sixth connecting rod 84, a second swing shaft 85, a third swing shaft 86, a seventh connecting rod 87, a sixth cam 88, a third conjugate cam 89, a rotating corner folder 810, and a sixth wheel body 811.

[0063] Specifically, the sixth rotating shaft 81 is rotatably connected to the housing 100, and the sixth cam 88 and the third conjugate cam 89 are sequentially sleeved on the sixth rotating shaft 81 and fixedly connected to the housing 100. The second swing shaft 85 and the third swing shaft 86 are both rotatably connected to the sixth wheel body 811. The fourth connecting rod 82 is rotatably connected to the second swing shaft 85, and the second swing shaft 85 abuts against the third conjugate cam 89. The third conjugate cam 89, the fourth connecting rod 82, and the second swing shaft 85 constitute the first cam rocker mechanism. The rotating angler 810 is rotatably connected to the fourth connecting rod 82. The rotation of the sixth rotating shaft 81 can drive the second swing shaft 85 to rotate around the sixth rotating shaft 81. Under the action of the contour line of the third conjugate cam 89, the second swing shaft 85 swings around its own axis, thereby driving the fourth connecting rod 82 to swing regularly, and then driving the rotating angler 810 to swing regularly. The fifth link 83 is rotatably connected to the sixth link 84, and the fifth link 83 is rotatably connected to the third swing shaft 86. The third swing shaft 86 is fixedly connected to the seventh link 87, and the end of the seventh link 87 is provided with a sixth roller inserted into the cam groove of the sixth cam 88. The sixth cam 88, the seventh link 87, the fifth link 83, the sixth link 84, and the third swing shaft 86 constitute the second cam rocker mechanism. The rotating angler 810 is rotatably connected to the sixth link 84. The rotation of the sixth rotating shaft 81 can drive the third swing shaft 86 to rotate around the sixth rotating shaft 81. Under the action of the contour line of the sixth cam 88 and the seventh link 87, the third swing shaft 86 swings around its own axis, thereby driving the fifth link 83 to swing regularly, and then driving the sixth link 84 and the rotating angler 810 to swing regularly. Under the combined action of the first cam rocker mechanism and the second cam rocker mechanism, a two-degree-of-freedom five-bar linkage is formed. After two independent motion inputs, the rotating angler 810 performs a regular and definite motion. In this embodiment, the motion trajectory of the rotating angle folder 810 is as follows: Figure 21 As shown.

[0064] Optionally, the corner heat-sealing wheel 8 also includes a first soldering iron 812, which is connected to the rotating corner folder 810. The first soldering iron 812 is used to shape and iron the long edge overlap of the preheat-sealed part.

[0065] Optionally, the angled heat-sealing wheel 8 also includes a fourth hub 813, a third disc 814, a sixth bearing seat 815, a fourth cam seat 816, a seventh fastening disc 817, a fourth positioning disc 818, and an eleventh gear 819. The sixth bearing seat 815 is fixed to the housing 100 by screws or pins and is rotatably connected to the sixth rotating shaft 81 by bearings. The fourth cam seat 816 is sleeved on the sixth bearing seat 815 and fixedly connected to the sixth bearing seat 815. The sixth cam 88 and the third conjugate cam 89 are both fixedly connected to the fourth cam seat 816 by screws. The third disc 814 is connected to the sixth wheel body 811, and the second swing shaft 85 and the third swing shaft 86 are both rotatably connected to the sixth wheel body 811 and the third disc 814. The eleventh gear 819 is fixedly connected to one end of the sixth rotating shaft 81. A flange is provided on the sixth rotating shaft 81. A seventh fastening disc 817 is located on the side of the eleventh gear 819 opposite to the flange. The seventh fastening disc 817 is connected to the flange by screws and presses the eleventh gear 819 tightly and securely. The fixing method of the fourth hub 813 and the fourth positioning disc 818 is similar to the fixing method of the second hub 2102 and the second positioning disc 2103, and will not be described in detail here.

[0066] Optionally, the angled heat-sealing wheel 8 also includes a protective housing 820. The protective housing 820 is connected to the third wheel disc 814, and a closed mounting cavity is formed between the protective housing 820 and the third wheel disc 814 to prevent dust and debris from damaging the lubrication of the wheel groove and rollers of the sixth cam 88.

[0067] Optionally, such as Figure 1 , Figure 22 and Figure 23 As shown, the folding and heat-sealing mechanism also includes a plow-shaped folder 1011, which folds the short side of the end of a single packaging film 300. The plow-shaped folder 1011 is conventional technology in the art and will not be described in detail here. The plow-shaped folder 1011 is connected to the housing 100 and positioned between the fixed corner folder and the end heat-sealing wheel 9. The end heat-sealing wheel 9 includes a seventh rotating shaft 91, a second soldering iron 92, and a third soldering iron 93. The seventh rotating shaft 91 is rotatably connected to the housing 100. The second soldering iron 92 and the third soldering iron 93 are slidably connected to the seventh rotating shaft 91 along its axial direction, and can move closer or further apart to heat-seal both ends of the cigarette pack 200.

[0068] Optionally, the end heat-sealing wheel 9 further includes a seventh wheel body 94, an eighth wheel body 95, a guide rod 96, a slider 97, and a seventh cam 98. The seventh wheel body 94 and the eighth wheel body 95 are fixedly connected to the seventh rotating shaft 91 and rotate synchronously with the seventh rotating shaft 91. The seventh cam 98 is fixedly connected to the housing 100. The seventh cam 98 has two cam grooves spaced apart along the axial direction of the seventh rotating shaft 91. Two sliders 97 are provided, and the sliders 97 are connected to the cam grooves of the seventh cam 98 one-to-one and slidably disposed in the corresponding cam grooves. The second soldering iron 92 and the third soldering iron 93 are each connected to one slider 97. The guide rod 96 is arranged parallel to the seventh rotating shaft 91 and fixedly connected to the seventh wheel body 94 and the eighth wheel body 95. The slider 97 is slidably connected to the guide rod 96 through a linear bearing. The rotation of the seventh rotating shaft 91 drives the seventh wheel body 94 and the eighth wheel body 95 to rotate, thereby driving the slider 97 to rotate. Under the action of the seventh cam 98, the slider 97 can move regularly along the guide rod 96, thereby driving the second soldering iron 92 and the third soldering iron 93 to move regularly, so as to heat seal both ends of the cigarette pack 200. In this embodiment, four second soldering irons 92 and four third soldering irons 93 are evenly distributed in a spaced ring along the circumference of the seventh rotating shaft 91.

[0069] Optionally, the end heat-sealing wheel 9 also includes a seventh bearing seat 99, a fifth cam seat 910, a fifth positioning plate 911, a twelfth gear 912, and a fifth hub 913. The seventh bearing seat 99 is fixed to the housing 100 by screws and positioning pins and is rotatably connected to the seventh rotating shaft 91 by bearings. The fifth cam seat 910 is sleeved on the seventh bearing seat 99 and fixedly connected to the seventh bearing seat 99. The seventh cam 98 is fixedly connected to the seventh bearing seat 99 by screws. The twelfth gear 912 is fixedly connected to one end of the seventh rotating shaft 91. The fixing method of the fifth hub 913 and the fifth positioning plate 911 is similar to the fixing method of the second hub 2102 and the second positioning plate 2103, and will not be described in detail here. The guide rod 96 is fixedly connected to the seventh wheel body 94 and the eighth wheel body 95 by nuts.

[0070] like Figures 1 to 23As shown, when the packaging machine in this embodiment is working, the cigarette pack transfer wheel 6 picks up the cigarette pack 200 from the cigarette pack input mechanism 5 and transfers it to the first adsorption component 13 of the cigarette pack output wheel 1. Under the action of the first cam 121 and the second cam 122, the first adsorption component 13 retracts inward; at station a, the packaging film roll 4 is cut into fixed-length single packaging film 300 by the die-cutting mechanism 3 and transferred and adsorbed onto the rim of the first wheel body 14 of the cigarette pack output wheel 1, covering the cigarette pack 200; Between workstations A and B, the receiving wheel 22 swings forward, and the connecting rod 225 of the cigarette pack receiving wheel 2 abuts against the single packaging film 300 and the cigarette pack 200, fixing the single packaging film 300 and preventing it from shifting during folding on its long side. The cigarette pack output wheel 1 and the cigarette pack receiving wheel 2 continue to rotate continuously, the connecting rod 225 retracts, the first adsorption component 13 swings outward, and the cigarette pack 200 moves horizontally between the cigarette pack output wheel 1 and the cigarette pack receiving wheel 2. The clamping plate 226 and the clamping... Claw 228 gradually closes. At station b, clamping plate 226 and claw 228 are completely closed, completing the folding of the single packaging film 300 along its long side. Simultaneously, the cigarette pack 200 detaches from the first adsorption component 13 and is gripped by the receiving wheel 22, completing the radial movement and transfer of the cigarette pack 200 between the cigarette pack output wheel 1 and the cigarette pack receiving wheel 2. Between stations b and c, grid-type folding device 1001 performs large-area folding of the long side of the single packaging film 300. At station c, long-side folding device 72 completes the single-sided folding. The packaging film 300 is folded and preheat-sealed along its long side overlap. At station d, the corner folding and preheat-sealing of the long side overlap are completed by fixing the corner folder, rotating the corner folder 810 and the first soldering iron 812. Between stations d and e, the plow-shaped folder 1011 folds the short sides of the single packaging film 300. At station e, the second soldering iron 92 and the third soldering iron 93 heat-seal both ends of the cigarette pack 200, completing the entire packaging process without interruption.

[0071] The rotational speeds of the cigarette pack output wheel 1, receiving mother wheel 21, receiving daughter wheel 22, die-cutting mechanism 3, cigarette pack transfer wheel 6, long side folding wheel 7, corner heat sealing wheel 8, and end heat sealing wheel 9 are set according to specific circumstances, so that the receiving daughter wheel 22 corresponding to the cigarette pack output wheel 1, long side folding wheel 7, corner heat sealing wheel 8, and end heat sealing wheel 9 works simultaneously, thereby improving work efficiency.

[0072] The packaging machine in this embodiment achieves high-speed continuous motion for the transfer and handover of cigarette packs 200 between the rollers. Unlike traditional intermittent motion packaging machines, the cigarette pack output roller 1, receiving mother roller 21, receiving daughter roller 22, die-cutting mechanism 3, cigarette pack transfer roller 6, long-side folding roller 7, corner heat-sealing roller 8, and end heat-sealing roller 9 do not frequently and continuously stop during the conveying and packaging process. This reduces the stress, impact, and fatigue failure of the moving parts of the packaging machine, significantly reduces the vibration and noise of the packaging machine, and improves the stability, speed, and efficiency of the packaging machine. Furthermore, the packaging machine has a high degree of automation. The all-wheel design enables automatic control of each component, reducing quality defects caused by burns from single packaging films 300 and minimizing instability caused by restarting the packaging machine. Meanwhile, the structure of the long-side folding wheel 7, the corner heat-sealing wheel 8, and the end heat-sealing wheel 9 in this embodiment ensures that the state of the single packaging film 300 and the cigarette pack 200 is controllable during the folding and wrapping process. Using a single long-side folding wheel 7, corner heat-sealing wheel 8, and end heat-sealing wheel 9 to package the single packaging film 300 throughout the entire process reduces process risks, thereby achieving better folding and packaging results. Furthermore, the all-wheel modular design shortens parts replacement and maintenance time, making operation and maintenance easier; it is easily expandable, more flexible, and has advantages such as quick grade and size changes, effectively meeting diverse combination needs. This packaging machine can package single packaging films 300 and cigarette packs 200 of any shape simply by changing the specifications and dimensions, and can be widely used for packaging food boxes, medicine boxes, gift boxes, etc., possessing high promotional and application value.

[0073] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A cigarette pack conveying device, characterized in that, include: The cigarette pack output wheel (1) includes a first rotating shaft (11), a first cam assembly (12) and a first adsorption assembly (13). The first rotating shaft (11) can rotate around its own axis. The first cam assembly (12) is sleeved on the first rotating shaft (11) and fixedly connected to the box (100) of the packaging machine. The first adsorption assembly (13) is rotatably connected to the first rotating shaft (11) and rotates synchronously with the first rotating shaft (11). The first adsorption assembly (13) abuts against the first cam assembly (12). The first adsorption assembly (13) is used to adsorb cigarette packs (200). The cigarette pack receiving wheel (2) includes a receiving mother wheel (21) and a receiving daughter wheel (22). The receiving mother wheel (21) includes a second rotating shaft (211) and a second cam assembly (212). The second rotating shaft (211) is parallel to the first rotating shaft (11) and can rotate around its own axis. The second cam assembly (212) is sleeved on the second rotating shaft (211) and fixedly connected to the housing (100). The receiving daughter wheel (22) is slidably connected to the second rotating shaft (211) along the radial direction of the second rotating shaft (211) and rotates synchronously with the second rotating shaft (211). The receiving daughter wheel (22) abuts against the second cam assembly (212). After the receiving sub-wheel (22) contacts the tobacco pack (200), the receiving sub-wheel (22) moves toward the side closer to the second rotating shaft (211), and the first adsorption component (13) moves away from the first rotating shaft (11). The distance between the receiving sub-wheel (22) and the first adsorption component (13) remains unchanged.

2. The tobacco pack conveying device according to claim 1, characterized in that, The first cam assembly (12) includes a first cam (121) and a second cam (122). The first cam (121) and the second cam (122) are both sleeved on the first rotating shaft (11) and fixedly connected to the housing (100). The cigarette pack output wheel (1) also includes a first wheel body (14). The first adsorption assembly (13) includes a swing rod (131), a push rod (132) and a first suction cup (133). The first wheel body (14) is connected to the first rotating shaft (11). The first suction cup (133) is fixedly connected to the swing rod (131) and rotatably connected to the push rod (132). The push rod (132) is slidably connected to the first rotating shaft (11) along the radial direction of the first wheel body (14). The swing rod (131) abuts against the first cam (121), and the push rod (132) abuts against the second cam (122).

3. The tobacco pack conveying device according to claim 2, characterized in that, The first wheel (14), the push rod (132) and the second cam (122) are each provided in two and are provided in a one-to-one correspondence. The two second cams (122) are symmetrically arranged with respect to the first cam (121) and the push rod (132).

4. The tobacco pack conveying device according to claim 1, characterized in that, The second cam assembly (212) includes a first conjugate cam (2121). The receiving sub-wheel (22) includes a sub-wheel body (221), a first swing sleeve (222), a third rotating shaft (223), a first gear (224), and a connecting rod (225). The first swing sleeve (222) is connected to the second rotating shaft (211) and rotates synchronously with the second rotating shaft (211). Two first connecting rods are provided on the first swing sleeve (222). The two first connecting rods respectively abut against the main cam and the secondary cam of the first conjugate cam (2121). The third rotating shaft (223) The first gear (224) and the connecting rod (225) are both located inside the sub-wheel body (221). The connecting rod (225) is provided with a first rack (2251). The first gear (224) is fixedly connected to the third rotating shaft (223). The first rack (2251) meshes with the first gear (224) and slides along the radial direction of the second rotating shaft (211) to the sub-wheel body (221).

5. The tobacco pack conveying device according to claim 4, characterized in that, The receiving sub-wheel (22) further includes a first clamping assembly, which includes two clamping plates (226). The first ends of the two clamping plates (226) are rotatably connected to the sub-wheel body (221), and the second ends of the two clamping plates (226) can move closer to or further away from each other.

6. The tobacco pack conveying device according to claim 5, characterized in that, The connecting rod (225) is provided with a second rack (2252) on both opposite sides. The first clamping assembly also includes two second gears (227). The clamping plate (226), the second gear (227) and the second rack (2252) correspond one-to-one. The second gear (227) and the second rack (2252) are meshed and connected. The clamping plate (226) is connected to the second gear (227).

7. The tobacco pack conveying device according to claim 5, characterized in that, The receiving sub-wheel (22) further includes a second clamping assembly, which includes a jaw (228). The first end of the jaw (228) is rotatably connected to the sub-wheel body (221), and the second end of the jaw (228) can abut against the side of the cigarette pack (200) facing away from the second rotating shaft (211).

8. The tobacco pack conveying device according to claim 4, characterized in that, The second cam assembly (212) further includes a second conjugate cam (2122), and the receiving sub-wheel (22) further includes a second swing bushing (229). The second swing bushing (229) is coaxially arranged with the third rotating shaft (223) and fixedly connected to the sub-wheel body (221). The second swing bushing (229) is provided with two second connecting rods, which respectively abut against the main cam and the secondary cam of the second conjugate cam (2122). The second swing bushing (229) is coaxially arranged with the sub-wheel body (221), and the swing of the second swing bushing (229) can drive the sub-wheel body (221) to rotate around its own axis.

9. A packaging machine, characterized in that, Includes a housing (100) and a cigarette pack conveying device as described in any one of claims 1-8, wherein the first cam assembly (12) and the second cam assembly (212) are both fixedly connected to the housing (100).

10. The packaging machine according to claim 9, characterized in that, The packaging machine also includes a die-cutting mechanism (3), on which a single packaging film (300) is provided. The first adsorption component (13) can adsorb the single packaging film (300) and make the single packaging film (300) cover the side of the cigarette pack (200) adsorbed by the first adsorption component (13) facing away from the cigarette pack output wheel (1). The cigarette pack conveying device also includes a folding and heat sealing mechanism, which is used to fold and heat seal the single packaging film (300).

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