Cigarette pushing device of small box packaging machine

Abstract

The invention 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, it is necessary to use a cigarette pushing device to push the double boxes arranged up and down to the next station. The existing cigarette pushing devices are 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 front and rear small boxes, the two small boxes are arranged up and down, and then the cigarette pushing rod 1-1 drives the cigarette pushing plate 1-2 to move 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 upward 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 in 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 fatigue occurred due to the long-term expansion and contraction of the tension spring, which made 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 on the equipment to be stuck, affecting the normal progress of the process. Summary of the invention

[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 prior art.

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

[0005] frame;

[0006] A first arm is disposed on the frame so as to be reciprocatable along a first direction;

[0007] The second arm is connected to the first arm, the second arm can swing around the first axis relative to the first arm, and the first direction is located in the swing plane of the second arm relative to the first arm, the second arm is provided with a contact surface, the contact surface is used to contact with the small box to push the small box, and the contact surface is 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, and the third magnetic pole and the fourth magnetic pole cooperate to drive the second arm to be in a 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 is in contact with the first limiting portion, and when the second arm is in a second position relative to the first arm, the second abutting portion is in contact with the second limiting portion. 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 axis portion and a contact portion that are connected to each other, the axis portion and the first arm are rotationally connected, the first abutment portion and the second abutment portion are both arranged on the axis portion, and the contact portion is connected to a position on the axis portion close to the second abutment portion.

[0015] In some possible implementations, 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 abuts against the base, and a part of the second limit frame abuts 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 abuts against the base, and when the second movable end is in a horizontal state, the second connecting end abuts against the first connecting end.

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

[0018] In some possible implementations, an elastic component is disposed on the base, and the elastic component is used to drive the second movable end to restore 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, due to the interaction between 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, which avoids 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 schematic diagram of a cigarette pushing mechanism of a 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 the middle A;

[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] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work 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, the cigarettes 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 that are continuously transported in a 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 the two small boxes are arranged together. Then, the two arranged small boxes are pushed to the next station by relying on the cigarette pushing device. Then, the cigarette pushing device returns. During the returning 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 in 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 smoothly reset, 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, it is found in actual operation that due to fatigue of the tension spring after long-term use, the pulling force 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 smoothly pushed to the next station when pushing the double boxes, causing the double boxes to tilt, 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 the present 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 station, and avoid equipment jams.

[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 is constituted as a local part of the small box packaging machine. The first arm 100 can be reciprocated and arranged on the frame 90 along a first direction. The first direction is horizontally arranged. 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, 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 can be swingably connected to the first arm 100, and the second arm can swing around a first axis relative to the first arm 100. The first axis is horizontally arranged, and the first axis and the first direction are relative. They are perpendicular to each other. The first direction is the pushing direction of the cigarette pushing device when pushing 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. 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. There is no situation in the prior art that individual cigarette pushing plates cannot be reset. The state can be reset by resetting one second arm. The small box is pushed by contacting the surface contact surface with 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, so that the second arm swings 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 together, 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, and there is no negative effect of metal fatigue. The service life is longer, and the second arm can be restored to the initial state more smoothly, and the double boxes can be pushed more smoothly and stably, avoiding the jamming of the small box, which is beneficial to improving 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, and 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 restores 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, a 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, and for a 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, and 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 and the second limiting portion 102 are respectively located on both sides of the pivot axis. 01 are in contact with 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 one of the magnetic poles of the magnet.

[0035] Preferably, the second arm includes an axis portion 21 and a contact portion 22 that are connected to each other, the axis portion 21 and the first arm 100 are rotationally connected, the first abutment portion 201 and the second abutment portion 202 are both arranged on the axis portion 21, and the contact portion 22 is connected to a position on the axis portion 21 close to the second abutment portion 202, that is, the axis portion 21 and the first arm 100 are rotationally connected, and a pivot connection is formed between the axis portion 21 and the first arm 100, the first abutment portion 201 and the second abutment portion 202 are respectively located on both sides of the axis portion 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 portion 21 and is arranged close to the second abutment 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 a swing recovery effect, 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 a 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 in a 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 in a 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 maintain a horizontal state. 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. Based on this, it can be judged whether the small box is stuck. Preferably, a proximity switch 70 is set 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 jam.

[0038] Preferably, the first limiting 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 limiting 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 abuts on the base 91, when the second movable end 52 is in a horizontal state, the second connecting end 42 abuts on the first connecting end 41, so that the second connecting end 42 abuts on the first connecting end 41, and the first connecting end 41 abuts 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 small 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 downward at an angle, and one side of the middle part of the second connecting end 42 can abut against Leaning against one side of the first connection end 41, when the middle part of the second connection end 42 abuts against the first connection end 41, the second movable end 52 connected to the second connection end 42 is in a horizontal state, that is, the first movable end 51 is connected to the left side of the first connection end 41, the middle part of the second connection end 42 abuts against the right side of the top end of the first connection end 41, and the second movable end 52 is connected to the right side of the second connection end 42. If the first movable end 51 is pushed and swung upward by the small box, the second connection end 42 is pushed by the first connection 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, and a detection switch is used to simultaneously detect whether the first movable end 51 and the second movable end 52 are horizontal, so as to avoid the small box from getting stuck.

[0040] More preferably, an elastic component 80 may 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 which 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 the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

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

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

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

[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 it. 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 replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate 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 is disposed on the frame so as to be reciprocatable along a first direction; A second arm is connected to the first arm, the second arm can swing around a first axis relative to the first arm, and the first direction is located in a swing plane of the second arm relative to the first arm, the second arm is provided with a contact surface, the contact surface is used to contact the small box to push the small box, and the contact surface is 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 a first position relative to the first arm.

3. A cigarette pushing device for a 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. A cigarette pushing device for 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 is in contact with the first limiting portion, and when the second arm is in a second position relative to the first arm, the second abutting portion is in contact with the second limiting portion. 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. A cigarette pushing device for a 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 arranged on the shaft portion, and the contact portion is connected to a position on the shaft portion close to the second abutment portion.

6. A 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, and when the first limit frame and the second limit frame are both in a horizontal state, a part of the first limit frame abuts against the base, and a part of the second limit frame abuts against the first limit frame.

7. A cigarette pushing device for a 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 abuts against the base, when the second movable end is in a horizontal state, the second connecting end abuts against the first connecting end.

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

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