Box body pushing device and tobacco packaging equipment

Abstract

The invention belongs to the technical field of tobacco packaging, and discloses a box pushing device and tobacco packaging device.A pushing assembly of the box pushing device comprises a pushing piece and a connecting piece connected to the pushing piece, and the pushing piece is provided with a pushing face abutting against a tobacco bale; a first gear set of the planet wheel assembly comprises a planet carrier, an inner gear and a first gear shaft, the inner gear and the first gear shaft are meshed with each other, the planet carrier drives the first gear shaft to axially rotate around the inner gear and axially rotate around itself, the input end of a second gear set is connected to the first gear set, and the output end of the second gear set is connected to a connecting piece. The first gear set drives the second gear set to act so that the pushing face can be parallel to the first direction all the time. The axial direction of the connecting piece and the axial direction of the first gear shaft are parallel and are not collinear, when the first gear shaft rotates around the axial direction of the inner gear, the connecting piece moves in the first plane in the third direction so as to push the cigarette packets on the first conveying line to the second conveying line, and included angles are formed between the third direction and the first direction and between the third direction and the second direction. By means of the structure, the cigarette packets can be continuously and stably pushed.

Description

Technical Field

[0001] The 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 box transparent paper packaging workstation uses transparent film to wrap the cigarette packs and adds a beauty function. The outer box transparent paper packaging machine uses a vertical conveyor belt to beautify the cigarette packs during the vertical lifting process, and then pushes the vertically lifted cigarette packs into the horizontal conveyor belt and enters the strip box packaging machine. Since the movement direction of the cigarette packs changes between the two conveyor belts, it is difficult for the pushers of the existing cigarette pack pushing equipment 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 vertical conveyor belt is generally used. After the vertical conveyor belt lifts the cigarette packs vertically into place, it pauses, and the cigarette pack pushing equipment pushes the cigarette packs into the horizontal conveyor belt. The pause of the vertical conveyor belt is 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 but 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, which is used to push cigarette packets on a first conveyor line to a second conveyor line, wherein the first conveyor line conveys cigarette packets along a first direction, and the second conveyor line conveys the cigarette packets along a second direction, the first direction is perpendicular to the second direction, and the first direction and the second direction are both located in a first plane, the box pushing device comprises a planetary gear assembly and a pushing assembly, the pushing assembly comprises a pushing member and a connecting member, the pushing member is connected to the connecting member, the pushing member has a pushing surface, the pushing surface is used to abut the side of the cigarette packet, the planetary gear assembly comprises a driving motor, a first gear set and a second gear set, the first gear set comprises a planet carrier and an internal gear and a first gear shaft meshing with each other, the axial direction of the internal gear is perpendicular to the first plane, the driving motor is transmission-connected to the planet carrier, the planet carrier is used to drive the first gear shaft to rotate around the axial direction of the internal gear and rotate around its own axial direction at the same time, the input end of the second gear set is transmission-connected to the first gear set, the output end of the second gear set is connected to the connecting member, and the first gear set is used to drive the second gear set to move so that the pushing surface is always parallel to the first direction;

[0007] Among them, the axial direction of the connecting member and the axial direction of the first gear shaft are parallel to each other and are not arranged in a colinear manner, and the axial direction of the connecting member is perpendicular to the first plane. 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, 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, the first transmission gear is transmission-connected to the second gear shaft, and 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 between 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 meshed with the first transmission gear and the second gear shaft at the same time 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 internal 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, the second gear set also includes a second cover plate, the second cover plate is provided with a second mounting hole, the second cover plate is covered on the second side panel, 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 between 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 set and the pushing assembly are each provided, the planetary carrier extends radially along the internal gear, two first gear shafts are symmetrically hinged at both ends of the planetary carrier, and two groups of the second gear sets and 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 approaching 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 conveys cigarette packs along a first direction, and the second conveyor line conveys the cigarette packs along a second direction, 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 packs on the first conveyor line to the second conveyor line.

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

[0019] Beneficial effects of the present invention:

[0020] The box pushing device provided by the present invention comprises a planetary gear assembly and a pushing assembly, wherein the pushing assembly comprises a pushing member and a connecting member. The pushing member is connected to the connecting member, and the pushing member has a pushing surface, and the pushing surface is used to abut the side of the cigarette pack. The planetary gear assembly comprises a driving motor, a first gear set and a second gear set, wherein the first gear set comprises a planetary carrier, an inner gear and a first gear shaft meshing with each other, and the axial direction of the inner gear is perpendicular to the first plane. The planetary carrier is used to drive the first gear shaft to rotate around the axial direction of the inner gear and rotate around its own axial direction at the same time, 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, and the first gear set is used to drive the second gear set to move so that the pushing surface is always parallel to the first direction, that is, the pushing member always maintains a vertical state, so that it can contact the surface of the cigarette pack. Among them, the axial direction of the connecting member and the axial direction of the first gear shaft are parallel to each other and are not arranged in a colinear manner, and the axial direction of the connecting member is perpendicular to the first plane. When the first gear shaft rotates around the axial direction of the inner gear, the connecting member moves along the third direction in the first plane to push the cigarette pack on the first conveyor line to the second conveyor line. Since the connecting member moves along the third direction in the first plane, and the third direction is set at an angle to the first direction and the second direction, the movement of the connecting member has a partial speed in the first direction and the second direction. The partial speed in the first direction enables the push member to follow the cigarette pack on the first conveyor line in the first direction, ensuring that the position of the push surface matches the position of the cigarette pack. The push surface and the cigarette pack are relatively stationary in the first direction to avoid the vertical friction between the push member and the cigarette pack. The partial speed in the second direction enables the push member to smoothly push the cigarette pack to the second conveyor line. During the pushing process, the first conveyor line and the second conveyor line always maintain a conveying state without pausing, meeting the high-speed flow requirements and avoiding affecting the production rhythm. The push surface and the cigarette pack are always in surface contact, no impact will be generated, the pushing action is smooth, and the reliability of the box pushing device is improved.

[0021] The tobacco packaging equipment provided by the present invention includes the above-mentioned box body pushing device. The box body 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, and no pause is required, 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 1It is a partial structural schematic diagram of a tobacco packaging device provided by an embodiment of the present invention;

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

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

[0025] Figure 4 It 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 It is a schematic diagram of the motion trajectory of the connecting member provided in an embodiment of the present invention.

[0028] In the figure:

[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 plate; 12. Second gear set; 121. Follower wheel; 1211. Second side panel; 122. First transmission gear; 123. Second gear shaft; 1231. Second shaft end; 124. Second transmission gear; 125. Second cover plate;

[0030] 2. Pushing component; 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 described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot 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 "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates 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 clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Embodiments of the present invention are described in detail below, examples of which 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 only used to explain the present invention, and cannot be understood 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, illustratively, the first direction is the vertical direction, that is, Figure 1 The second direction is the horizontal direction, i.e. 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, wherein 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 the pushing member 21 has a pushing surface 211, and the pushing surface 211 is used to abut the side of the cigarette pack 10. The planetary gear assembly 1 includes a driving motor (not shown in the figure), a first gear set 11 and a second gear set 12, wherein the first gear set 11 includes a planetary carrier 111 and an internal gear 112 and a first gear shaft 113 that mesh with each other, and the axial direction of the internal gear 112 is perpendicular to the first plane. The driving motor is connected to the planetary frame 111 in a transmission manner. The planetary frame 111 is used to drive the first gear shaft 113 to rotate around the axial direction of the internal gear 112 and 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 in a transmission manner. 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 move so that the pushing surface 211 is always parallel to the first direction, that is, the pushing member 21 is always kept in a vertical state, so that it can contact the surface of the cigarette pack 10. Among them, 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 in the same line. 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 the 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.

[0038] In the box pushing device of the embodiment of the present invention, the connecting member 22 moves along the third direction in the first plane. Since the third direction is set at an angle with 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, ensuring 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, avoiding the generation of vertical friction between the pushing member 21 and the cigarette pack 10; the component speed in the second direction enables the pushing member 21 to smoothly push the cigarette pack 10 to the second conveyor line 200. During the pushing process, the first conveyor line 100 and the second conveyor line 200 always maintain a conveying state without pausing, meeting the high-speed flow requirements and avoiding affecting the production rhythm; the pushing surface 211 and the cigarette pack 10 are always in surface contact, no impact is generated, the pushing action is smooth, and the reliability of the box pushing device is improved.

[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 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 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 rotates around its own axis and revolves around the axis of the internal gear 112 at the same time. 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 by 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 planet carrier 111 through the follower rod 114, therefore, 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 achieveω 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] In order to realize the same rotation direction of the first transmission gear 122 and the second gear shaft 123, the second gear set 12 further includes a second transmission gear 124, and the second transmission gear 124 is hinged to the follower wheel 121. The second transmission gear 124 is meshed with the first transmission gear 122 and the second gear shaft 123 at the same time, and after the intermediate transmission of the second transmission gear 124, the first transmission gear 122 and the second gear shaft 123 have the same direction of rotation.

[0046] like Figure 5 As shown, in the operation of the first gear set 11, the first gear set 11 is a planetary gear system consisting of a planet 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 on 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 is used as a planetary gear, and the motion trajectory of a certain point M thereon is a regular polygon. When the gear ratio between 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 approximately an equilateral triangle, and on the other hand, the position of the approximately equilateral triangle on the first plane relative to the first conveyor line 100 and the second conveyor line 200 is changed, 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 movement direction of the connecting member 22. When the connecting member 22 moves along the first side 221 to move the pushing member 21 toward the second conveyor line 200, the connecting member 22 abuts against the cigarette pack 10 on the first conveyor line 100 and pushes the cigarette pack 10 to the second conveyor line 200 during the movement along the first side 221. 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 realizes the next pushing action during the next movement along the first side 221.

[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 is arranged around the internal gear 112, a first mounting hole is opened on the first cover plate 116, the first cover plate 116 is rotatably covered on the first side panel 1151, and the first shaft end 1131 of the first gear shaft 113 passes through the first mounting hole to connect to the input end of the second gear set 12. During the process of the first gear shaft 113 rotating and revolving, the first cover plate 116 is always covered on the first side panel 1151 to provide protection to prevent dust and impurities from entering the interior of the first gear set 11 and affecting the transmission accuracy.

[0049] Similarly, the driven wheel 121 has a second side panel 1211 around it, and the second gear set 12 further includes a second cover plate 125. The second cover plate 125 has a second mounting hole, and 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. While the connecting member 22 rotates with the second gear shaft 123, the second cover plate 125 is always covered on the second side panel 1211 to prevent dust and impurities from entering the second gear set 12 and affecting the transmission accuracy.

[0050] like Figure 2 As shown, two groups of first gear shafts 113, second gear sets 12 and pusher assemblies 2 are provided, the planet carrier 111 extends along the radial direction of the inner gear 112, two first gear shafts 113 are symmetrically hinged at both ends of the planet carrier 111, and two groups of second gear sets 12 and two groups of pusher assemblies 2 correspond to two first gear shafts 113 respectively. In this way, through the action of the planet carrier 111, the motion control of the two groups of pusher assemblies 2 can be realized at the same time, and the two pushers 21 of the two groups of pusher assemblies 2 are arranged at intervals along the circumference of the inner gear 112, and push the adjacent cigarette packs 10 on the first conveyor line 100 in turn, further improving the push efficiency.

[0051] The embodiment of the present invention further provides a tobacco packaging device, which includes a box pushing device of any of the above embodiments. The tobacco packaging device also includes 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 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 packs 10 on the first conveyor line 100 to the second conveyor line 200. The box pushing device realizes the movement of the connecting member 22 in the third direction in the first plane through the planetary gear system formed by the planetary gear assembly 1. Since the third direction is set at an angle with 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, ensuring 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, avoiding the generation of vertical friction between the pushing member 21 and the cigarette pack 10; the component speed in the second direction enables the pushing member 21 to smoothly push the cigarette pack 10 to the second conveyor line 200. During the pushing process, the first conveyor line 100 and the second conveyor line 200 always maintain a conveying state without pausing, meeting the high-speed flow requirements and avoiding affecting the production rhythm of the tobacco packaging equipment; the pushing surface 211 and the cigarette pack 10 are always in surface contact, no impact is generated, the pushing action is smooth, and the packaging quality of the tobacco packaging equipment is improved.

[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 prior art, which is not the focus of this application and will not be described in detail in this embodiment.

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

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

Claims

1. A box pushing device, used for pushing cigarette packs (10) on a first conveyor line (100) to a second conveyor line (200), wherein the first conveyor line (100) conveys the cigarette packs (10) along a first direction, and the second conveyor line (200) conveys the cigarette packs (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 surface of the cigarette pack (10), wherein the planetary gear assembly (11) 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 ... second gear set (12) are configured to abut against the side surface of the cigarette pack (10), wherein the planetary gear assembly (11) comprises a planetary carrier (111) and a pushing surface (211) and a second gear set (12) The axial direction of the gear (112) is perpendicular to the first plane, the driving motor is connected to the planet carrier (111) in a transmission manner, the planet 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), 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 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 in a colinear manner. 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 packs (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.

2. The box pushing device according to claim 1, characterized in that: 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 planet 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); 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.

3. The box pushing device according to claim 2, characterized in that: The gear ratio between the first transmission gear (122) and the second gear shaft (123) is 2:

3.

4. The box pushing device according to claim 2, characterized in that: The second gear set (12) further comprises a second transmission gear (124), wherein the second transmission gear (124) is hinged to the follower wheel (121), and the second transmission gear (124) is simultaneously meshed with the first transmission gear (122) and the second gear shaft (123), so that the first transmission gear (122) and the second gear shaft (123) have the same direction of rotation.

5. The box pushing device according to claim 2, characterized in that: The first gear set (11) further comprises 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) being provided with a first mounting hole, the first cover plate (116) being rotatably covered on the first side panel (1151), the first shaft end (1131) of the first gear shaft (113) passing through the first mounting hole to be connected 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, and 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) is covered on the second side panel (1211), and 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).

6. The box pushing device according to any one of claims 1 to 5, characterized in that: The gear ratio between the internal gear (112) and the first gear shaft (113) is 3:

1.

7. The box pushing device according to any one of claims 1 to 5, 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 planet carrier (111) extends radially along the internal gear (112), the two first gear shafts (113) are symmetrically hinged at two ends of the planet carrier (111), and the two groups of the second gear sets (12) and the two groups of the pushing assemblies (2) correspond to the two first gear shafts (113) respectively.

8. The box pushing device according to any one of claims 1 to 5, characterized in that: The movement trajectory of the connecting member (22) in the first plane is approximately an 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 conveying line (200). The connecting member (22) moves along the first side (221) so that the pushing member (21) moves toward a direction approaching the second conveying line (200), and the connecting member (22) moves along the second side (222) so that the pushing member (21) moves toward a direction away from the second conveying line (200).

9. Tobacco packaging equipment, characterized in that The box pushing device comprises the box pushing device according to any one of claims 1 to 8, and further comprises a first conveyor line (100) and a second conveyor line (200), wherein the first conveyor line (100) conveys cigarette packs (10) along a first direction, and the second conveyor line (200) conveys the cigarette packs (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 for pushing the cigarette packs (10) on the first conveyor line (100) to the second conveyor line (200).

10. The tobacco packaging device according to claim 9, characterized in that: The first conveying line (100) has two cigarette packs (10) arranged in parallel along the first direction, and the pushing member (21) can simultaneously abut against the sides of the two cigarette packs (10) to simultaneously push the two cigarette packs (10).

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