Box pushing device and tobacco packaging equipment

Abstract

The present invention belongs to the technical field of tobacco packaging and discloses a box pushing device and tobacco packaging equipment. The pushing assembly of the box pushing device includes a pushing member and a connecting member connected to the pushing member. The pushing member has a pushing surface that abuts against cigarette packs. The first gear set of the planetary gear assembly includes a planetary carrier and an internal gear and a first gear shaft that mesh with each other. The planetary carrier drives the first gear shaft to rotate around the axial direction of the internal gear while rotating around its own axial direction. The input end of the second gear set is connected to the first gear set, and the output end is connected to the connecting member. The first gear set drives the second gear set to move so that the pushing surface is always parallel to the first direction. The axial direction of the connecting member is parallel to the axial direction of the first gear shaft and is not colinear. When the first gear shaft rotates around the axial direction of the internal gear, the connecting member moves along a third direction in the first plane to push the cigarette packs on the first conveyor line to the second conveyor line. The third direction is set at an angle to the first direction and the second direction. The above structure can achieve continuous and smooth pushing of cigarette packs.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco packaging, in particular to a box pushing device and tobacco packaging equipment. Background Art

[0002] The cigarette box packaging production line includes multiple workstations, among which the outer transparent paper packaging station uses transparent film to wrap the cigarette packs and adds a cosmetic function. The outer transparent paper packaging machine uses an upright conveyor belt to beautify the cigarette packs while vertically lifting them, and then pushes the vertically lifted cigarette packs onto a horizontal conveyor belt and enters the strip box packaging machine. Because the movement direction of the cigarette packs changes between the two conveyor belts, the pushing parts of the existing cigarette pack pushing equipment are difficult to keep in sync with the cigarette packs during the pushing process, and friction will be generated between the cigarette packs and the cigarette packs, affecting the packaging effect. Therefore, an intermittent upright conveyor belt is generally used. After the upright conveyor belt lifts the cigarette packs vertically into place, it pauses, and the cigarette pack pushing equipment pushes the cigarette packs onto the horizontal conveyor belt. The pause of the upright conveyor belt makes it difficult to meet the high-speed flow requirements, affecting the production rhythm of the cigarette box packaging production line.

[0003] Moreover, the existing cigarette pack pushing equipment generally realizes the regular swing of the pushing member by driving the connecting rod through a cam. The cam connecting rod mechanism has a complex structure, a large impact, and poor pushing stability of the pushing member. Summary of the Invention

[0004] The purpose of the present invention is to provide a box pushing device and tobacco packaging equipment, which can solve the problems that the existing cigarette package pushing equipment needs to use intermittent upright conveyor belts and horizontal conveyor belts, which cannot meet the high-speed flow requirements and affect the production rhythm, and the pushing parts use a cam connecting rod mechanism for transmission, which has a complex structure, large impact, and poor pushing stability.

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

[0006] On the one hand, a box pushing device is provided for pushing cigarette packets on a first conveyor line to a second conveyor line, the first conveyor line conveying cigarette packets along a first direction, and the second conveyor line conveying the cigarette packets along a second direction, the first direction being perpendicular to the second direction, and the first direction and the second direction are both located in a first plane, the box pushing device comprising a planetary gear assembly and a pushing assembly, the pushing assembly comprising a pushing member and a connecting member, the pushing member being connected to the connecting member, the pushing member having a pushing surface, the pushing surface being used to abut against the side surface of the cigarette packet, the planetary gear assembly comprising a driving motor, a first gear set and a second gear set, the first gear set comprising a planetary carrier and an internal gear and a first gear shaft meshing with each other, the axial direction of the internal gear being perpendicular to the first plane, the driving motor being transmission-connected to the planetary carrier, the planetary carrier being used to drive the first gear shaft to rotate around the axial direction of the internal gear while rotating around its own axial direction, the input end of the second gear set being transmission-connected to the first gear set, the output end of the second gear set being connected to the connecting member, the first gear set being used to drive the second gear set to move so that the pushing surface is always parallel to the first direction;

[0007] In which, the axial direction of the connecting member and the axial direction of the first gear shaft are parallel to each other and are not collinear, the axial direction of the connecting member is perpendicular to the first plane, and when the first gear shaft rotates around the axial direction of the internal gear, the connecting member moves along the third direction within the first plane to push the cigarette packs on the first conveyor line to the second conveyor line, and the third direction is set at an angle to the first direction and the second direction.

[0008] As an optional structure of the present invention, the first gear set further includes a follower rod, the planet carrier and the internal gear are coaxially arranged, one end of the follower rod is fixedly connected to the planet carrier, the first gear shaft is hinged to the planet carrier, and the follower rod and the first gear shaft are coaxially arranged;

[0009] The second gear set includes a follower wheel, a first transmission gear and a second gear shaft, the follower wheel is fixedly connected to the output shaft of the first gear shaft, the first transmission gear and the second gear shaft are both hinged to the follower wheel, and the first transmission gear is fixedly connected to the other end of the follower rod away from the planetary carrier, the second gear shaft is fixedly connected to the connecting member, and the first transmission gear is transmission-connected to the second gear shaft. When the follower wheel rotates around the axial direction of the internal gear, the angular velocity of the second gear shaft relative to the internal gear is always zero.

[0010] As an optional structure of the present invention, the gear ratio of the first transmission gear and the second gear shaft is 2:3.

[0011] As an optional structure of the present invention, the second gear group also includes a second transmission gear, which is hinged to the follower wheel, and the second transmission gear is simultaneously engaged with the first transmission gear and the second gear shaft so that the first transmission gear and the second gear shaft have the same direction of rotation.

[0012] As an optional structure of the present invention, the first gear set further includes a frame and a first cover plate, the frame has a first side panel, the internal gear is connected to the frame and the first side panel is arranged around the inner gear, a first mounting hole is opened on the first cover plate, the first cover plate is rotatably covered on the first side panel, and a first shaft end of the first gear shaft passes through the first mounting hole to connect to the input end of the second gear set; and / or,

[0013] The circumference of the follower wheel is provided with a second side panel, and the second gear set further includes a second cover plate, which has a second mounting hole. The second cover plate is covered on the second side panel, and the connecting member passes through the second mounting hole to be connected to the second shaft end of the second gear shaft.

[0014] As an optional structure of the present invention, the gear ratio of the internal gear and the first gear shaft is 3:1.

[0015] As an optional structure of the present invention, two groups of the first gear shaft, the second gear group and the pushing assembly are provided, the planetary carrier extends radially along the internal gear, the two first gear shafts are symmetrically hinged at both ends of the planetary carrier, and the two groups of the second gear groups and the two groups of the pushing assemblies correspond to two first gear shafts respectively.

[0016] As an optional structure of the present invention, the movement trajectory of the connecting member in the first plane is an approximate equilateral triangle, and the approximate equilateral triangle includes a first side, a second side, and an angle between the first side and the second side, and the angle is toward the second conveyor line. The connecting member moves along the first side to move the pushing member toward the direction close to the second conveyor line, and the connecting member moves along the second side to move the pushing member toward the direction away from the second conveyor line.

[0017] On the other hand, a tobacco packaging device is provided, comprising a box pushing device as described in any of the above items, and also comprising a first conveyor line and a second conveyor line, the first conveyor line conveying cigarette packets along a first direction, and the second conveyor line conveying the cigarette packets along a second direction, the first direction being perpendicular to the second direction, and the first direction and the second direction are both located in a first plane, the box pushing device being used to push the cigarette packets on the first conveyor line to the second conveyor line.

[0018] As an optional structure of the present invention, the first conveyor line has two cigarette packs arranged side by side along the first direction, and the pushing member can simultaneously abut against the sides of the two cigarette packs to push the two cigarette packs simultaneously.

[0019] Beneficial effects of the present invention:

[0020] The present invention provides a box pushing device, comprising a planetary gear assembly and a pushing assembly, the pushing assembly comprising a pushing member and a connecting member. The pushing member is connected to the connecting member and has a pushing surface for contacting the side surface of a cigarette packet. The planetary gear assembly comprises a drive motor, a first gear set, and a second gear set. The first gear set comprises a planetary carrier, an internal gear and a first gear shaft meshing with each other, the axial direction of the internal gear being perpendicular to a first plane. The planetary carrier is configured to drive the first gear shaft to rotate about the axial direction of the internal gear while also rotating about its own axial direction. The input end of the second gear set is transmission-connected to the first gear set, and the output end of the second gear set is connected to the connecting member. The first gear set is configured to drive the second gear set to operate so that the pushing surface is always parallel to the first direction, that is, the pushing member always remains in a vertical position, thereby enabling contact with the surface of the cigarette packet. The axial direction of the connecting member and the axial direction of the first gear shaft are parallel to each other and non-colinear, and the axial direction of the connecting member is perpendicular to the first plane. When the first gear shaft rotates about the axial direction of the internal gear, the connecting member moves in a third direction within the first plane to push the cigarette packets on the first conveyor line to the second conveyor line. Because the connecting member moves along the third direction within the first plane, and the third direction is set at an angle to the first and second directions, the movement of the connecting member has a component speed in both the first and second directions. The component speed in the first direction enables the pushing member to follow the cigarette pack on the first conveyor line in the first direction, ensuring that the pushing surface matches the position of the cigarette pack. The pushing surface and the cigarette pack are approximately relatively stationary in the first direction, avoiding vertical friction between the pushing member and the cigarette pack. The component speed in the second direction enables the pushing member to smoothly push the cigarette pack to the second conveyor line. During the pushing process, the first and second conveyor lines always maintain a conveying state without the need for pause, meeting the high-speed flow requirements and avoiding affecting the production rhythm. The pushing surface and the cigarette pack are always in surface contact, without any impact, and the pushing action is smooth, improving the reliability of the box pushing device.

[0021] The tobacco packaging equipment provided by the present invention includes the above-mentioned box pushing device. The box pushing device forms a planetary gear system through a planetary gear assembly, so that the first conveyor line and the second conveyor line always maintain a conveying state during the pushing process of the pushing member, without the need to pause, thereby meeting the high-speed flow requirements of the tobacco packaging equipment and ensuring the production rhythm; the pushing action of the pushing member is smooth, thereby improving the packaging quality of the tobacco packaging equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is a partial structural diagram of a tobacco packaging device provided by an embodiment of the present invention;

[0023] Figure 2 This is a partial structural diagram of a box pushing device provided by an embodiment of the present invention;

[0024] Figure 3 This is a partial structural cross-sectional view of a box pushing device provided by an embodiment of the present invention;

[0025] Figure 4 This is a transmission principle diagram of the box pushing device provided by an embodiment of the present invention;

[0026] Figure 5 is a working principle diagram of the first gear set provided by an embodiment of the present invention;

[0027] Figure 6 Schematic diagram of the motion trajectory of the connecting member provided by an embodiment of the present invention.

[0028] In the picture:

[0029] 1. Planetary gear assembly; 11. First gear set; 111. Planet carrier; 112. Internal gear; 113. First gear shaft; 1131. First shaft end; 114. Follower rod; 115. Frame; 1151. First side panel; 116. First cover; 12. Second gear set; 121. Follower gear; 1211. Second side panel; 122. First transmission gear; 123. Second gear shaft; 1231. Second shaft end; 124. Second transmission gear; 125. Second cover.

[0030] 2. Pushing assembly; 21. Pushing member; 211. Pushing surface; 22. Connecting member; 221. First side; 222. Second side;

[0031] 10. Cigarette pack; 100. First conveyor line; 200. Second conveyor line. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0035] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0036] like Figure 1 and Figure 2 As shown, the box pushing device is used to push the cigarette packs 10 on the first conveyor line 100 to the second conveyor line 200. The first conveyor line 100 conveys the cigarette packs 10 along the first direction, and the second conveyor line 200 conveys the cigarette packs 10 along the second direction. The first direction is perpendicular to the second direction, and the first direction and the second direction are both located in the first plane. For ease of understanding, for example, the first direction is the vertical direction, that is, Figure 1 The second direction is the horizontal direction, that is, Figure 1 The first plane is the vertical plane where X and Y are located.

[0037] The box pushing device includes a planetary gear assembly 1 and a pushing assembly 2. The pushing assembly 2 includes a pushing member 21 and a connecting member 22. The pushing member 21 is connected to the connecting member 22 and has a pushing surface 211 for contacting the side of the cigarette pack 10. The planetary gear assembly 1 includes a drive motor (not shown), a first gear set 11, and a second gear set 12. The first gear set 11 includes a planetary carrier 111 and a meshing internal gear 112 and a first gear shaft 113. The axial direction of the internal gear 112 is perpendicular to the first plane. The drive motor is transmission-connected to the planetary carrier 111. The planetary carrier 111 is used to drive the first gear shaft 113 to rotate about the axial direction of the internal gear 112 while also rotating about its own axial direction. The input end of the second gear set 12 is transmission-connected to the first gear set 11, and the output end of the second gear set 12 is connected to the connecting member 22. The first gear set 11 is used to drive the second gear set 12 to operate so that the pushing surface 211 is always parallel to the first direction, that is, the pushing member 21 is always maintained in a vertical position, so that it can contact the surface of the cigarette pack 10. The axial direction of the connecting member 22 and the axial direction of the first gear shaft 113 are parallel to each other and are not collinear. The axial direction of the connecting member 22 is perpendicular to the first plane. When the first gear shaft 113 rotates about the axial direction of the internal gear 112, the connecting member 22 moves in a third direction within the first plane to push the cigarette packs 10 on the first conveyor line 100 to the second conveyor line 200. The third direction is set at an angle to both the first and second directions.

[0038] In the box pushing device of the embodiment of the present invention, the connecting member 22 moves along a third direction within a first plane. Because the third direction is arranged at an angle to both the first and second directions, the movement of the connecting member 22 has component velocities in both the first and second directions. The component velocity in the first direction enables the pushing member 21 to follow the cigarette packs 10 on the first conveyor line 100 in the first direction, ensuring that the pushing surface 211 matches the position of the cigarette packs 10. The pushing surface 211 and the cigarette packs 10 remain approximately stationary relative to each other in the first direction, thus avoiding vertical friction between the pushing member 21 and the cigarette packs 10. The component velocity in the second direction enables the pushing member 21 to smoothly push the cigarette packs 10 to the second conveyor line 200. During the pushing process, the first and second conveyor lines 100 remain in a continuous conveying state without pausing, meeting high-speed flow requirements and avoiding affecting production tact. The pushing surface 211 and the cigarette packs 10 are in constant surface contact, preventing impact and ensuring a smooth pushing action, thereby improving the reliability of the box pushing device.

[0039] In order to realize the transmission connection between the first gear set 11 and the second gear set 12, the first gear set 11 further includes a follower rod 114 (refer to Figure 3 and Figure 4), the planet carrier 111 and the internal gear 112 are coaxially arranged. One end of the follower rod 114 is fixedly connected to the planet carrier 111. The first gear shaft 113 is hingedly connected to the planet carrier 111. The follower rod 114 and the first gear shaft 113 are coaxially arranged. The second gear set 12 includes a follower wheel 121, a first transmission gear 122, and a second gear shaft 123. The follower wheel 121 is fixedly connected to the output shaft of the first gear shaft 113 and moves with the first gear shaft 113, that is, it simultaneously rotates about its own axis and revolves about the axis of the internal gear 112. The first transmission gear 122 and the second gear shaft 123 are both hinged to the follower wheel 121, and the first transmission gear 122 is fixedly connected to the other end of the follower rod 114 away from the planetary carrier 111. The first transmission gear 122 follows the follower rod 114 in the axial revolution around the internal gear 112. Since the first transmission gear 122 is also hinged to the follower wheel 121 that can rotate on its own, there is relative rotation between the first transmission gear 122 and the follower wheel 121. The second gear shaft 123 is fixedly connected to the connecting member 22, the first transmission gear 122 is transmission-connected to the second gear shaft 123, and the second gear shaft 123 and the connecting member 22 are fixedly connected. Therefore, when the driven wheel 121 rotates around the axial direction of the internal gear 112, the planetary carrier 111 simultaneously drives the first gear shaft 113, thereby realizing that the first transmission gear 122 drives the second gear shaft 123 to rotate; and because the second gear shaft 123 simultaneously revolves around the axial direction of the internal gear 112 with the driven wheel 121, the angular velocity of the second gear shaft 123 relative to the axial direction of the internal gear 112 is always zero, thereby realizing that the angular velocity of the connecting member 22 is always zero, the pushing member 21 always remains in a vertical state, and the pushing surface 211 is always parallel to the first direction.

[0040] In the above structure, the gear ratio of the first transmission gear 122 and the second gear shaft 123 is 2:3, and the gear ratio of the internal gear 112 and the first gear shaft 113 is 3:1.

[0041] The calculation process is as follows:

[0042] The transmission ratio is calculated using the conversion mechanism method. When the follower wheel 121 is fixed, the transmission ratio from the first transmission gear 122 to the second gear shaft 123 is:

[0043]

[0044] In the above formula, since the follower wheel 121 is fixedly connected to the first gear shaft 113, and the first transmission gear 122 is fixedly connected to the planetary carrier 111 through the follower rod 114, ω 121 =ω 113 ,ω 122 =ω 111 In the operation of the first gear set 11, when the gear ratio of the internal gear 112 and the first gear shaft 113 is 3:1, ω 113=-2ω 111 Need to achieve ω 123 =0, we can conclude 123=3 / 2. That is, the gear ratio of the first transmission gear 122 and the second gear shaft 123 is 2:3, and the first transmission gear 122 and the second gear shaft 123 rotate in the same direction.

[0045] To ensure that the first transmission gear 122 and the second gear shaft 123 rotate in the same direction, the second gear set 12 further includes a second transmission gear 124, which is hinged to the follower wheel 121. The second transmission gear 124 is simultaneously engaged with the first transmission gear 122 and the second gear shaft 123. After intermediate transmission by the second transmission gear 124, the first transmission gear 122 and the second gear shaft 123 rotate in the same direction.

[0046] like Figure 5 As shown, during the operation of the first gear set 11, the first gear set 11 is a planetary gear train consisting of a planetary carrier 111, an internal gear 112, and a first gear shaft 113. Since the follower wheel 121 is fixedly connected to the output shaft of the first gear shaft 113, and the second gear shaft 123 is hinged to the follower wheel 121, the center position of the second gear shaft 123 can be simplified to a certain point M on the first gear shaft 113. Figure 5 In the figure, A represents the axis of the internal gear 112, B represents the axis of the first gear shaft 113, and M is eccentrically arranged relative to the axial direction of the first gear shaft 113. The first gear shaft 113 serves as a planetary gear, and the motion trajectory of a certain point M on it is a regular polygon. When the gear ratio of the internal gear 112 and the first gear shaft 113 is 3:1, the motion trajectory of M is approximately a triangle, that is, the motion trajectory of the connecting member 22 in the first plane is approximately a triangle. In order to match the mutually perpendicular positional relationship between the first conveyor line 100 and the second conveyor line 200, the position of point M relative to point B is adaptively adjusted. On the one hand, the motion trajectory of point M is made into an approximately equilateral triangle. On the other hand, the position of the approximately equilateral triangle on the first plane is changed relative to the first conveyor line 100 and the second conveyor line 200, so that when the connecting member 22 moves along the side length of the approximately equilateral triangle, it can match the position and conveying speed of the first conveyor line 100 and the second conveyor line 200.

[0047] Specifically, if Figure 6 As shown, the movement trajectory of the connecting member 22 in the first plane is an approximate equilateral triangle, which includes a first side 221, a second side 222, and an angle between the first side 221 and the second side 222. The position of point M relative to point B is adjusted so that the angle is toward the second conveyor line 200. Figure 6The middle arrow indicates the direction of movement of the connecting member 22. When the connecting member 22 moves along the first side 221, the pushing member 21 moves toward the second conveyor line 200. During this movement along the first side 221, the connecting member 22 abuts against the cigarette packets 10 on the first conveyor line 100 and pushes the cigarette packets 10 to the second conveyor line 200. When the connecting member 22 moves along the second side 222, the pushing member 21 moves away from the second conveyor line 200, completing one pushing action. The connecting member 22 circulates along an approximately equilateral triangle, and during its next movement along the first side 221, the next pushing action is completed.

[0048] In one embodiment, the first gear set 11 further includes a frame 115 and a first cover plate 116. The frame 115 has a first side panel 1151. The internal gear 112 is connected to the frame 115 and the first side panel 1151 surrounds the internal gear 112. The first cover plate 116 has a first mounting hole defined therein and is rotatably mounted on the first side panel 1151. The first shaft end 1131 of the first gear shaft 113 extends through the first mounting hole to connect to the input end of the second gear set 12. During the rotation and orbital revolution of the first gear shaft 113, the first cover plate 116 remains mounted on the first side panel 1151, providing protection against dust and impurities that could enter the interior of the first gear set 11 and affect transmission accuracy.

[0049] Similarly, the follower wheel 121 is surrounded by a second side panel 1211. The second gear set 12 also includes a second cover plate 125. The second cover plate 125 has a second mounting hole. The second cover plate 125 covers the second side panel 1211. The connector 22 passes through the second mounting hole and connects to the second shaft end 1231 of the second gear shaft 123. While the connector 22 rotates with the second gear shaft 123, the second cover plate 125 remains attached to the second side panel 1211, preventing dust and impurities from entering the interior of the second gear set 12 and affecting transmission accuracy.

[0050] like Figure 2 As shown, two first gear shafts 113, two second gear sets 12, and two pusher assemblies 2 are each provided. The planet carrier 111 extends radially along the inner gear 112. Two first gear shafts 113 are symmetrically hinged to the ends of the planet carrier 111. The two second gear sets 12 and the two pusher assemblies 2 each correspond to two first gear shafts 113. In this way, the movement of the planet carrier 111 can simultaneously achieve motion control of the two pusher assemblies 2. The two pushers 21 of the two pusher assemblies 2 are spaced apart along the circumference of the inner gear 112 and sequentially push adjacent cigarette packs 10 on the first conveyor line 100, further improving pusher efficiency.

[0051] The present invention also provides a tobacco packaging device, comprising a box pushing device according to any of the above embodiments. The tobacco packaging device further comprises a first conveyor line 100 and a second conveyor line 200. The first conveyor line 100 conveys cigarette packs 10 along a first direction, and the second conveyor line 200 conveys cigarette packs 10 along a second direction. The first direction is perpendicular to the second direction, and both the first and second directions lie within a first plane. The box pushing device is configured to push cigarette packs 10 from the first conveyor line 100 to the second conveyor line 200. The box pushing device uses a planetary gear system formed by the planetary gear assembly 1 to enable the connecting member 22 to move along the third direction within the first plane. Because the third direction is set at an angle to the first and second directions, the movement of the connecting member 22 has component velocities in both the first and second directions. The component velocity in the first direction enables the pushing member 21 to follow the cigarette packs 10 on the first conveyor line 100 in the first direction, ensuring that the pushing surface 211 matches the position of the cigarette packs 10. The pushing surface 211 and the cigarette packs 10 remain approximately relatively stationary in the first direction, avoiding vertical friction between the pushing member 21 and the cigarette packs 10. The component velocity in the second direction enables the pushing member 21 to smoothly push the cigarette packs 10 to the second conveyor line 200. During the pushing process, the first and second conveyor lines 100 remain in a continuous conveying state without pausing, meeting high-speed flow requirements and avoiding affecting the production cycle of the tobacco packaging equipment. The pushing surface 211 and the cigarette packs 10 are in constant surface contact, eliminating impact and ensuring a smooth pushing action, thereby improving the packaging quality of the tobacco packaging equipment.

[0052] The structure and conveying principle of the first conveyor line 100 and the second conveyor line 200 can be set with reference to the existing technology. This is not the focus of this application and will not be described in detail in this embodiment.

[0053] In one embodiment, two cigarette packs 10 are arranged side by side along a first direction on the first conveyor line 100. The pusher 21 can simultaneously abut the sides of the two cigarette packs 10 to push the two cigarette packs 10. The pusher 21 can push both cigarette packs 10 in one push, further improving packaging efficiency.

[0054] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A box pushing device, used for pushing cigarette packets (10) on a first conveyor line (100) to a second conveyor line (200), wherein the first conveyor line (100) conveys the cigarette packets (10) along a first direction, and the second conveyor line (200) conveys the cigarette packets (10) along a second direction, wherein the first direction is perpendicular to the second direction, and the first direction and the second direction are both located in a first plane, characterized in that: The box pushing device comprises a planetary gear assembly (1) and a pushing assembly (2), wherein the pushing assembly (2) comprises a pushing member (21) and a connecting member (22), wherein the pushing member (21) is connected to the connecting member (22), wherein the pushing member (21) has a pushing surface (211), wherein the pushing surface (211) is used to abut against the side of the cigarette pack (10), wherein the planetary gear assembly (1) comprises a driving motor, a first gear set (11) and a second gear set (12), wherein the first gear set (11) comprises a planetary carrier (111) and an internal gear (112) and a first gear shaft (113) meshing with each other, wherein the internal gear (112) and the first gear shaft (113) mesh with each other, wherein the internal gear (112) and the first gear shaft (113) mesh with each other, wherein the internal gear (112) and the first gear shaft (113) mesh with each other, wherein the planetary gear (1 ... The axial direction of the gear (112) is perpendicular to the first plane, the driving motor is connected to the planetary carrier (111), the planetary carrier (111) is used to drive the first gear shaft (113) to rotate around the axial direction of the internal gear (112) and to rotate around its own axial direction at the same time, the input end of the second gear set (12) is connected to the first gear set (11), the output end of the second gear set (12) is connected to the connecting member (22), and the first gear set (11) is used to drive the second gear set (12) to move so that the pushing surface (211) is always parallel to the first direction; The first gear set (11) further comprises a follower rod (114), the planet carrier (111) and the internal gear (112) are coaxially arranged, one end of the follower rod (114) is fixedly connected to the planet carrier (111), the first gear shaft (113) is hinged to the planet carrier (111), and the follower rod (114) and the first gear shaft (113) are coaxially arranged; the second gear set (12) comprises a follower wheel (121), a first transmission gear (122) and a second gear shaft (123), the follower wheel (121) is fixedly connected to the output shaft of the first gear shaft (113), the first transmission gear (122) and the second gear shaft (123) are both hinged to the follower wheel (121). The first transmission gear (122) is fixedly connected to the other end of the follower rod (114) away from the planetary carrier (111), the second gear shaft (123) is fixedly connected to the connecting member (22), the first transmission gear (122) is transmission-connected to the second gear shaft (123), the gear ratio of the first transmission gear (122) and the second gear shaft (123) is 2:3, and the first transmission gear (122) and the second gear shaft (123) have the same direction of rotation, and when the follower wheel (121) rotates around the axial direction of the internal gear (112), the angular velocity of the second gear shaft (123) relative to the internal gear (112) is always zero; The axial direction of the connecting member (22) and the axial direction of the first gear shaft (113) are parallel to each other and are not arranged collinearly. The axial direction of the connecting member (22) is perpendicular to the first plane. When the first gear shaft (113) rotates around the axial direction of the internal gear (112), the connecting member (22) moves along a third direction in the first plane to push the cigarette pack (10) on the first conveyor line (100) to the second conveyor line (200). The third direction is arranged at an angle to the first direction and the second direction. The movement of the connecting member (22) has a component speed in the first direction and the second direction. The component speed in the first direction enables the pushing member (21) to follow the cigarette pack (10) on the first conveyor line (100) in the first direction, so that the pushing surface (211) matches the position of the cigarette pack (10). The pushing surface (211) and the cigarette pack (10) are approximately relatively stationary in the first direction.

2. The box pushing device according to claim 1, characterized in that: The second gear set (12) further includes a second transmission gear (124), the second transmission gear (124) is hinged to the follower wheel (121), and the second transmission gear (124) is simultaneously engaged with the first transmission gear (122) and the second gear shaft (123).

3. The box pushing device according to claim 1, characterized in that: The first gear set (11) further includes a frame (115) and a first cover plate (116), the frame (115) having a first side panel (1151), the internal gear (112) being connected to the frame (115), and the first side panel (1151) being arranged around the internal gear (112), the first cover plate (116) having a first mounting hole, the first cover plate (116) being rotatably arranged on the first side panel (1151), and the first shaft end (1131) of the first gear shaft (113) passing through the first mounting hole to connect to the input end of the second gear set (12); and / or, The follower wheel (121) has a second side panel (1211) arranged around its circumference. The second gear set (12) further includes a second cover plate (125). The second cover plate (125) has a second mounting hole. The second cover plate (125) is covered on the second side panel (1211). The connecting member (22) passes through the second mounting hole to be connected to the second shaft end (1231) of the second gear shaft (123).

4. The box pushing device according to any one of claims 1 to 3, characterized in that: The gear ratio between the internal gear (112) and the first gear shaft (113) is 3:

1.

5. The box pushing device according to any one of claims 1 to 3, characterized in that: The first gear shaft (113), the second gear set (12) and the pushing assembly (2) are each provided with two groups, the planetary carrier (111) extends along the radial direction of the internal gear (112), the two first gear shafts (113) are symmetrically hinged to the two ends of the planetary carrier (111), and the two groups of the second gear set (12) and the two groups of the pushing assemblies (2) respectively correspond to the two first gear shafts (113).

6. The box pushing device according to any one of claims 1 to 3, characterized in that: The movement trajectory of the connecting member (22) in the first plane is an approximately equilateral triangle, and the approximately equilateral triangle includes a first side (221), a second side (222), and an angle between the first side (221) and the second side (222), and the angle is toward the second conveyor line (200). The connecting member (22) moves along the first side (221) to move the pushing member (21) toward the second conveyor line (200), and the connecting member (22) moves along the second side (222) to move the pushing member (21) toward the direction away from the second conveyor line (200).

7. Tobacco packaging equipment, characterized in that The invention comprises a box pushing device according to any one of claims 1 to 6, and further comprises a first conveyor line (100) and a second conveyor line (200), wherein the first conveyor line (100) conveys cigarette packets (10) along a first direction, and the second conveyor line (200) conveys the cigarette packets (10) along a second direction, wherein the first direction is perpendicular to the second direction, and the first direction and the second direction are both located in a first plane, and the box pushing device is used to push the cigarette packets (10) on the first conveyor line (100) to the second conveyor line (200).

8. The tobacco packaging device according to claim 7, characterized in that: The first conveying line (100) has two cigarette packs (10) arranged side by side along the first direction, and the pushing member (21) can simultaneously abut against the sides of the two cigarette packs (10) to push the two cigarette packs (10) at the same time.

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