Cigarette pushing device of small box packaging machine

Abstract

The utility model relates to a cigarette pushing device of a small box packaging machine. The first arm is arranged on the rack in a manner of reciprocating along a first direction; the second arm can swing around a first axis relative to the first arm, the first direction is located in a swing plane of the second arm relative to the first arm, and the second arm is provided with a contact surface; a first magnetic pole provided on the first arm; a second magnetic pole provided on the second arm; the second arm swings relative to the first arm within a range between a first position and a second position. According to the cigarette pushing device of the small box packaging machine, under the interaction of the first magnetic pole and the second magnetic pole, the second arm is driven to return to the first position relative to the first arm, the second arm is driven to return to the state through the magnetic acting force, the phenomenon that the second arm cannot return is avoided, and the second arm integrally swings relative to the first arm; and after the second arm restores to the first position state, the contact surface on the second arm cannot cause clamping stagnation of the small box in the process of pushing the small box, and the packaging process is smoother.

Description

Technical Field

[0001] The present application relates to the technical field of cigarette packaging, and in particular to a cigarette pushing device for a small box packaging machine. Background Art

[0002] In the production process of cigarette factories, after the cigarettes are produced, they are first packaged into small boxes, then the small boxes are packaged into cigarette rods, and then the cigarette rods are packaged into boxes. In the process of the small box packaging machine, a cigarette pushing device is needed to push the double boxes arranged up and down to the next station. The existing cigarette pushing device is as follows Figure 1 As shown, it includes a cigarette pushing rod 1-1, and the lower part of the cigarette pushing rod 1-1 is hinged with two cigarette pushing plates 1-2. The cigarette pushing rod 1-1 is driven by other driving devices to move back and forth repeatedly so that the cigarette pushing plate 1-2 contacts the small box and pushes the small box. At that time, other components of the small box packaging machine will lift the small box. After lifting the two small boxes in front and behind, the two small boxes are arranged up and down, and then the cigarette pushing rod 1-1 drives the cigarette pushing plate 1-2 forward. After pushing the double boxes to the next station, the cigarette pushing rod 1-1 returns again. At this time, since other components of the packaging machine continue to lift the small boxes one by one, the cigarette pushing plate 1-2 will touch the small box. Therefore, the cigarette pushing plate 1-2 and the cigarette pushing rod 1-1 are made into a swingable form, and the cigarette pushing plate 1-2 and the upper After the rising small boxes touch each other, the cigarette pushing plate 1-2 can move and swing to avoid jamming, and the cigarette pushing plate 1-2 is reset by relying on the tension spring between the cigarette pushing plate 1-2 and the cigarette pushing rod 1-1. However, during the overall operation of the equipment, it was found that as the tension spring expanded and contracted for a long time, fatigue occurred, making the reset of the cigarette pushing plate 1-2 not smooth enough. If the cigarette pushing plate 1-2 is not restored, the double boxes cannot be pushed into place smoothly in the subsequent process of pushing the small boxes. Moreover, it is possible that one of the two cigarette pushing plates 1-2 is reset while the other cannot be reset smoothly. In this way, the arranged double boxes cannot be pushed into place correctly, which can easily cause the small box packaging to be stuck on the equipment, affecting the normal progress of the process. Utility Model Content

[0003] The purpose of the present application is to provide a cigarette pushing device for a small box packaging machine, which can smoothly push the small box and smoothly restore the initial state, thereby effectively solving the shortcomings of the existing technology.

[0004] To this end, an embodiment of the present application provides a cigarette pushing device for a small box packaging machine, comprising:

[0005] frame;

[0006] a first arm, disposed on the frame and capable of reciprocating movement along a first direction;

[0007] a second arm connected to the first arm, the second arm being capable of swinging relative to the first arm about a first axis, and the first direction being located within a swinging plane of the second arm relative to the first arm, the second arm being provided with a contact surface, the contact surface being configured to contact the small box to push the small box, the contact surface being parallel to the first axis;

[0008] a first magnetic pole disposed on the first arm;

[0009] a second magnetic pole disposed on the second arm;

[0010] The second arm swings relative to the first arm within a range between a first position and a second position, and the first magnetic pole and the second magnetic pole cooperate to drive the second arm to be in the first position relative to the first arm.

[0011] In some possible implementations, a third magnetic pole and a fourth magnetic pole are further included, wherein the third magnetic pole is arranged on the first arm, and the fourth magnetic pole is arranged on the second arm. The third magnetic pole and the fourth magnetic pole cooperate to drive the second arm to be in the first position relative to the first arm.

[0012] In some possible implementations, the first magnetic pole and the second magnetic pole are the same, and / or the third magnetic pole and the fourth magnetic pole are different.

[0013] In some possible implementations, the first arm is provided with a first limiting portion and a second limiting portion, and the second arm is provided with a first abutting portion and a second abutting portion. When the second arm is in a first position relative to the first arm, the first abutting portion and the first limiting portion are in contact. When the second arm is in a second position relative to the first arm, the second abutting portion and the second limiting portion are in contact. The first magnetic pole is provided at the second limiting portion, the second magnetic pole is provided at the second abutting portion, the third magnetic pole is provided at the first limiting portion, and the fourth magnetic pole is provided at the first abutting portion.

[0014] In some possible implementations, the second arm includes an interconnected shaft portion and a contact portion, the shaft portion and the first arm are rotatably connected, the first abutment portion and the second abutment portion are both arranged on the shaft portion, and the contact portion is connected to a position on the shaft portion close to the second abutment portion.

[0015] In some possible implementations, a base is further included, which is arranged on the frame, and a first limit frame and a second limit frame are arranged on the base, one end of the first limit frame is hinged to the base, and the other end of the first limit frame extends in a direction close to the first arm, one end of the second limit frame is hinged to the base, and the other end of the second limit frame extends in a direction away from the first arm, when the first limit frame and the second limit frame are both in a horizontal state, a part of the first limit frame rests against the base, and a part of the second limit frame rests against the first limit frame.

[0016] In some possible implementations, the first limiting frame includes a first connecting end and a first movable end connected to each other, the first connecting end is hinged to the base, the second limiting frame includes a second connecting end and a second movable end connected to each other, the second connecting end is hinged to the base, when the first movable end is in a horizontal state, the first connecting end rests against the base, when the second movable end is in a horizontal state, the second connecting end rests against the first connecting end.

[0017] In some possible implementations, a proximity switch is provided on the base, and the proximity switch is used to detect the state of the second movable end.

[0018] In some possible implementations, an elastic component is provided on the base, and the elastic component is used to drive the second movable end to restore to a horizontal state.

[0019] In some possible implementations, the base is adjustably connected to the frame.

[0020] According to the cigarette pushing device of the small box packaging machine provided in the embodiment of the present application, under the interaction of the first magnetic pole and the second magnetic pole, there is a magnetic force between the first arm and the second arm, which can drive the second arm to return to the first position relative to the first arm. The magnetic force is used to drive the second arm to return to the state, and the action is more reliable and smooth, avoiding the phenomenon that the second arm cannot be restored. Moreover, the second arm swings as a whole relative to the first arm. After the second arm returns to the first position, the contact surface on the second arm will not cause the small box to get stuck during the process of pushing the small box, and the packaging process is smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the cigarette pushing mechanism of the small box packaging machine in the prior art;

[0022] Figure 2 A schematic diagram of the structure of a cigarette pushing device for a small box packaging machine provided in an embodiment of the present application;

[0023] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0024] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0025] Figure 5 for Figure 3 A partial enlarged view of point C in the middle;

[0026] Figure 6 for Figure 5 The schematic diagram of the structure after the base is partially cut away in the shown part;

[0027] Figure 7 for Figure 6Schematic diagram of the structure after removing the card board. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] The embodiment of the present application provides a cigarette pushing device for a small box packaging machine, which is applied to the small box packaging machine. In the process of producing cigarette products, after the cigarettes are rolled, they are packaged into small boxes, and then multiple small boxes are packaged into cigarette rods, and finally multiple cigarette rods are packaged into boxes. In the small box packaging process, the small box packaging machine needs to transform the small boxes conveyed in a continuous single row into a state of upper and lower double boxes. This action is completed by the cigarette pushing device, etc. The existing cigarette pushing device is as follows Figure 1 As shown, it includes a cigarette pushing rod 1-1 and a cigarette pushing plate 1-2. Two cigarette pushing plates 1-2 are provided. The small box packaging machine is also provided with a small box lifting mechanism. The small box lifting mechanism pushes up the small boxes one by one, first lifts up a small box, and the small box is maintained at a higher position. Then the lifting mechanism descends and lifts up the next small box, and arranges the two small boxes together. Then, the two arranged small boxes are pushed to the next station by the cigarette pushing device, and then the cigarette pushing device returns. During the return process, the lifting mechanism continues to lift the small box, so that the lower edge of the cigarette pushing plate 1-2 will touch the small box during the rising process. In order to avoid equipment jamming, the cigarette pushing plate 1-2 and the cigarette pushing rod 1-1 are arranged in a hinged form. After the cigarette pushing plate 1-2 touches the small box on the way back, it will swing with it, so that the pusher The cigarette device is reset smoothly, and then under the action of the tension spring between the cigarette pushing rod 1-1 and the cigarette pushing plate 1-2, the cigarette pushing plate 1-2 is restored to its initial state so as to push the next group of double boxes. However, in actual operation, it is found that due to fatigue of the tension spring after long-term use, the tension becomes smaller, and there is a situation where the cigarette pushing plate 1-2 cannot be reset immediately. In particular, when one cigarette pushing plate 1-2 is reset and the other cigarette pushing plate 1-2 is not reset, the double boxes cannot be pushed smoothly to the next workstation when pushing the double boxes, causing the double boxes to be skewed, etc., causing the equipment to jam and affecting the normal progress of the packaging process. The cigarette pushing device of the small box packaging machine of this application is intended to improve the smoothness of the reset of the cigarette pushing plate 1-2, push the double boxes smoothly to the next workstation, and avoid equipment jamming.

[0030] like Figure 2-Figure 7As shown, the cigarette pushing device of the small box packaging machine includes a frame 90, a first arm 100 and a second arm. The frame 90 constitutes a local part of the small box packaging machine. The first arm 100 is arranged on the frame 90 so as to be reciprocatingly movable along a first direction. The first direction is arranged horizontally. The movement of the first arm 100 can be achieved by a driving component such as a cylinder. Preferably, the first arm 100 is an elongated member. The top end of the first arm 100 is connected to the driving component, and the bottom end of the first arm 100 extends vertically downward. The second arm is connected to the bottom end of the first arm 100. The second arm is swingably connected to the first arm 100. The second arm can swing around a first axis relative to the first arm 100. The first axis is arranged horizontally, and the first axis and the first direction are parallel. They are perpendicular to each other, and the first direction is the pushing direction when the cigarette pushing device pushes the double boxes. The second arm can swing around the first axis relative to the first arm 100. The first direction is located in the swinging plane of the second arm relative to the first arm 100. A contact surface is provided on the second arm, and the contact surface is used to contact the small box to push the small box and push the small box to the next workstation. The contact surface is parallel to the first axis. In this embodiment, one second arm is provided, and there is no situation in the prior art where individual cigarette pushing plates cannot be reset. The state can be reset by resetting the second arm. The small box is pushed by the surface contact surface and the small box. The force area is larger, so that the force on the small box is more balanced, and the small box is pushed more steadily, so that the small box is smoothly pushed to the next workstation.

[0031] The second arm swings relative to the first arm 100 in a range between the first position and the second position. When the second arm is in the first position relative to the first arm 100, the first arm 100 can drive the second arm to move and push the small box through the contact surface. After pushing the small box, when the first arm 100 drives the second arm back to the initial position, the lower edge of the second arm touches the rising small box, causing the second arm to swing relative to the first arm 100. At this time, the swinging state is between the first position and the second position, and the maximum swinging range reaches the second position. After the first arm 100 drives the second arm back to the initial position, the state of the second arm relative to the first arm 100 is reset. A first magnetic pole 31 is set on the first arm 100, and a second magnetic pole 32 is set on the second arm. Relying on the magnetic force between the first magnetic pole 31 and the second magnetic pole 32, the second arm returns to the first position. In this way, the second arm is forced to return to the initial state by magnetic force. There is no negative effect of metal fatigue, and the service life is longer. It can make the second arm more smoothly restore to the initial state, push the double box more smoothly and stably, avoid the small box jamming phenomenon, and help improve the working efficiency of the equipment.

[0032] Preferably, it also includes a third magnetic pole 33 and a fourth magnetic pole 34. The third magnetic pole 33 is arranged on the first arm 100, and the fourth magnetic pole 34 is arranged on the second arm. The third magnetic pole 33 and the fourth magnetic pole 34 cooperate to drive the second arm to be in the first position relative to the first arm 100. In this way, through the joint action of the two groups of magnetic poles, the second arm is restored to its initial position relative to the first arm 100, making the recovery of the second arm smoother.

[0033] In this embodiment, the first magnetic pole 31 and the second magnetic pole 32 can be the same magnetic poles, acting between the first arm 100 and the second arm through a repulsive force, and / or the third magnetic pole 33 and the fourth magnetic pole 34 are different magnetic poles, acting between the first arm 100 and the second arm through an attractive force. Preferably, the first magnetic pole 31 and the second magnetic pole 32 are the same magnetic poles, and the third magnetic pole 33 and the fourth magnetic pole 34 are different magnetic poles. The repulsive force between the first magnetic pole 31 and the second magnetic pole 32 and the attractive force between the third magnetic pole 33 and the fourth magnetic pole 34 drive the second arm to return to its initial state.

[0034] Preferably, a first limiting portion 101 and a second limiting portion 102 are provided at the bottom end of the first arm 100, and the top end of the second arm is pivotally connected to the bottom end of the first arm 100. A first abutting portion 201 and a second abutting portion 202 are provided at the top end of the second arm. With respect to the pivot axis between the first arm 100 and the second arm, the first limiting portion 101 and the second limiting portion 102 are respectively located on both sides of the pivot axis, and the first abutting portion 201 and the second abutting portion 202 are respectively located on both sides of the pivot axis. When the second arm is in the first position relative to the first arm 100, the first abutting portion 201 and the first limiting portion 101 are in contact with each other. 01 contact each other, when the second arm is in the second position relative to the first arm 100, the first abutting portion 201 and the first limiting portion 101 are separated, and the second abutting portion 202 and the second limiting portion 102 are in contact, so the first magnetic pole 31 is arranged on the second limiting portion 102, the second magnetic pole 32 is arranged on the second abutting portion 202, the third magnetic pole 33 is arranged on the first limiting portion 101, and the fourth magnetic pole 34 is arranged on the first abutting portion 201, which is convenient for the arrangement of each magnetic pole. The first magnetic pole 31, the second magnetic pole 32, the third magnetic pole 33 and the fourth magnetic pole 34 can be a magnetic pole of a magnet.

[0035] Preferably, the second arm includes an axis 21 and a contact portion 22 connected to each other, the axis 21 and the first arm 100 are rotatably connected, the first abutting portion 201 and the second abutting portion 202 are both arranged on the axis 21, and the contact portion 22 is connected to the position on the axis 21 close to the second abutting portion 202, that is, the axis 21 and the first arm 100 are rotatably connected, and a pivot connection is formed between the axis 21 and the first arm 100, the first abutting portion 201 and the second abutting portion 202 are respectively located on both sides of the axis 21, and the two sides correspond to the two sides of the pivot, and the contact portion 22 is connected to the bottom end of the axis 21 and is arranged close to the second abutting portion 202. In this way, under the action of torque, the second arm can also rely on the self-weight torque of the contact portion 22 to generate the swing recovery effect of the second arm, so that the recovery of the second arm is smoother. In this embodiment, the contact surface is arranged on the contact portion 22, and the contact portion 22 is arranged in a plate shape. One side of the contact portion 22 constitutes the contact surface, which is used to contact the small box to push the small box.

[0036] In some embodiments, the cigarette pushing device of the small box packaging machine also includes a base 91, which is arranged on a frame 90, and a first limit frame and a second limit frame are arranged on the base 91. One end of the first limit frame is hinged on the base 91, and the other end of the first limit frame extends toward the direction close to the first arm 100. One end of the second limit frame is hinged on the base 91, and the other end of the second limit frame extends toward the direction away from the first arm 100. When the first limit frame and the second limit frame are both in a horizontal state, a part of the first limit frame rests on the base 91, and a part of the second limit frame rests on the first limit frame. In this embodiment, the lower space of the first limit frame and the second limit frame forms a space for the movement of the double boxes. The first arm 100 drives the second arm to push the double boxes into the space, and then the double boxes are continued to be transported by conveying equipment such as synchronous belts. The first limit frame and the second limit frame are both hinged on the base 91, and the first limit frame extends toward the first arm 100, and the second limit frame extends away from the first arm 100.

[0037] When the double boxes move normally in the space under the first limit frame and the second limit frame, the first limit frame and the second limit frame remain horizontal. If the small box is stuck, the small box pushes the first limit frame upward or pushes the second limit frame upward. In this way, the first limit frame and the second limit frame are no longer horizontal. This can be used to determine whether the small box is stuck. Preferably, a proximity switch 70 is provided on the base 91, and the state of the second limit frame is detected by the proximity switch 70. When the second limit frame is not horizontal, the proximity switch 70 detects the change in the state of the second limit frame, thereby realizing the detection of the small box being stuck.

[0038] Preferably, the first limit frame includes a first connecting end 41 and a first movable end 51 connected to each other, the first connecting end 41 is hinged on the base 91, and the second limit frame includes a second connecting end 42 and a second movable end 52 connected to each other, the second connecting end 42 is hinged on the base 91, when the first movable end 51 is in a horizontal state, the first connecting end 41 rests on the base 91, when the second movable end 52 is in a horizontal state, the second connecting end 42 rests on the first connecting end 41, so that the second connecting end 42 rests on the first connecting end 41, and the first connecting end 41 rests on the base 91, so that the first movable end 51 and the second movable end 52 are both in a horizontal state, and the space under the first movable end 51 and the second movable end 52 is the space for the double box to move. When the double box is stuck, the small box pushes the first movable end 51 or the second movable end 52 upward, and the proximity switch 70 detects the state of the second movable end 52, thereby realizing the detection of the small box jam.

[0039] In this embodiment, the first movable end 51 and the second movable end 52 are both components with a certain length. The bottom end of the first connecting end 41 is hinged on the base 91, and the top end of the first connecting end 41 can swing at a certain angle. When the top end of the first connecting end 41 abuts against the local structure on the base 91 to form a limit, for example, a card plate 911 can be set on the base 91, and the top end of the first connecting end 41 can abut against the card plate 911, so that the first movable end 51 connected to the first connecting end 41 is in a horizontal state, and the top end of the second connecting end 42 is hinged on the base 91, and the position of the hinge point of the second connecting end 42 and the base 91 is higher than the position of the hinge point of the first connecting end 41 and the base 91, and the bottom end of the second connecting end 42 extends obliquely downward, and one side of the middle of the second connecting end 42 can abut against Leaning on one side of the first connecting end 41, when the middle of the second connecting end 42 rests on the first connecting end 41, the second movable end 52 connected to the second connecting end 42 is in a horizontal state, that is, the first movable end 51 is connected to the left side of the first connecting end 41, the middle of the second connecting end 42 rests on the right side of the top of the first connecting end 41, and the second movable end 52 is connected to the right side of the second connecting end 42. If the first movable end 51 is pushed upward by the small box, the second connecting end 42 is pushed by the first connecting end 41, so that the second movable end 52 swings upward, and then the proximity switch 70 is used to detect whether the second movable end 52 is horizontal. A detection switch is used to simultaneously detect whether the first movable end 51 and the second movable end 52 are horizontal to avoid the small box from getting stuck.

[0040] More preferably, an elastic component 80 can be provided on the base 91, and the elastic component 80 is used to drive the second movable end 52 to restore to a horizontal state. For example, the elastic component 80 is a spring, one end of the spring is connected to the base 91, and the other end of the spring is connected to the second movable end 52. Under the action of the spring force, the second movable end 52 is driven to a horizontal state. After the small box stops getting stuck, the second movable end 52 is helped to restore to a normal working state.

[0041] More preferably, the base 91 is adjustably connected to the frame 90, and the height of the base 91 can be adjusted to facilitate adjustment of the space for the small box to move, improve the applicability of the equipment, and facilitate equipment adjustment and maintenance.

[0042] It should be noted that references in this specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," and the like indicate that the described embodiment may include a particular feature, structure, or characteristic, but not necessarily every embodiment includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0043] It should be readily understood that “on,” “above,” and “over” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something,” but also includes “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above” or “over,” but also includes “above” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0044] Additionally, spatially relative terms, such as "below," "beneath," "beneath," "above," and the like, may be used herein for ease of description to describe the relationship of one element or feature to other elements or features as depicted in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cigarette pushing device for a small box packaging machine, characterized in that: include: frame; a first arm, disposed on the frame and capable of reciprocating movement along a first direction; a second arm connected to the first arm, the second arm being capable of swinging relative to the first arm about a first axis, and the first direction being located within a swinging plane of the second arm relative to the first arm, the second arm being provided with a contact surface, the contact surface being configured to contact the small box to push the small box, the contact surface being parallel to the first axis; a first magnetic pole disposed on the first arm; a second magnetic pole disposed on the second arm; The second arm swings relative to the first arm within a range between a first position and a second position, and the first magnetic pole and the second magnetic pole cooperate to drive the second arm to be in the first position relative to the first arm.

2. A cigarette pushing device for a small box packaging machine according to claim 1, characterized in that: It also includes a third magnetic pole and a fourth magnetic pole. The third magnetic pole is arranged on the first arm, and the fourth magnetic pole is arranged on the second arm. The third magnetic pole and the fourth magnetic pole cooperate to drive the second arm to be in the first position relative to the first arm.

3. The cigarette pushing device of the small box packaging machine according to claim 2, characterized in that: The first magnetic pole and the second magnetic pole are the same, and / or the third magnetic pole and the fourth magnetic pole are different.

4. The cigarette pushing device of a small box packaging machine according to claim 2, characterized in that: The first arm is provided with a first limiting portion and a second limiting portion, and the second arm is provided with a first abutting portion and a second abutting portion. When the second arm is in a first position relative to the first arm, the first abutting portion and the first limiting portion are in contact. When the second arm is in a second position relative to the first arm, the second abutting portion and the second limiting portion are in contact. The first magnetic pole is provided at the second limiting portion, the second magnetic pole is provided at the second abutting portion, the third magnetic pole is provided at the first limiting portion, and the fourth magnetic pole is provided at the first abutting portion.

5. The cigarette pushing device of the small box packaging machine according to claim 4, characterized in that: The second arm includes a shaft portion and a contact portion connected to each other. The shaft portion is rotatably connected to the first arm. The first abutment portion and the second abutment portion are both provided on the shaft portion. The contact portion is connected to a position on the shaft portion close to the second abutment portion.

6. The cigarette pushing device for a small box packaging machine according to claim 1, characterized in that: It also includes a base, which is arranged on the frame, and a first limit frame and a second limit frame are arranged on the base, one end of the first limit frame is hinged to the base, and the other end of the first limit frame extends in a direction close to the first arm, one end of the second limit frame is hinged to the base, and the other end of the second limit frame extends in a direction away from the first arm, when the first limit frame and the second limit frame are both in a horizontal state, a part of the first limit frame rests against the base, and a part of the second limit frame rests against the first limit frame.

7. The cigarette pushing device of the small box packaging machine according to claim 6, characterized in that: The first limiting frame includes a first connecting end and a first movable end connected to each other, the first connecting end is hinged to the base, the second limiting frame includes a second connecting end and a second movable end connected to each other, the second connecting end is hinged to the base, when the first movable end is in a horizontal state, the first connecting end rests against the base, when the second movable end is in a horizontal state, the second connecting end rests against the first connecting end.

8. The cigarette pushing device of the small box packaging machine according to claim 7, characterized in that: The base is provided with a proximity switch, and the proximity switch is used to detect the state of the second movable end.

9. The cigarette pushing device of the small box packaging machine according to claim 8, characterized in that: The base is provided with an elastic component, which is used to drive the second movable end to restore to a horizontal state.

10. The cigarette pushing device of a small box packaging machine according to claim 6, characterized in that: The base is adjustably connected to the frame.

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