A trademark valve type suction mechanism of a cigarette packaging machine

Abstract

The present application belongs to the technical field of cigarette production equipment, and particularly relates to a trademark paper valve body type suction mechanism of a cigarette packaging machine, which comprises a rotating shaft, a lifting rod, a first transmission mechanism installed between the rotating shaft and the lifting rod, a suction seat fixedly installed at the top end of the lifting rod, a suction disc and a suction pipe installed on the suction seat, a deflation mechanism installed on the suction seat, a valve installed on the suction pipe, a second transmission mechanism for driving the valve rod to reciprocating rotate, the deflation mechanism being in a closed state when the valve is in an open state, the valve being opened under the action of the second transmission mechanism to form adsorption of the trademark paper in the process of the contact between the suction disc and the trademark paper in a paper library, the deflation mechanism being opened to make the suction disc communicate with the external atmosphere when the trademark paper is driven by the suction disc to separate from the paper library and reach a box mold conveying belt, and the valve being closed under the action of the second transmission mechanism before the deflation mechanism is opened. The purpose is to solve the problem of excessive noise caused by structural defects of the existing suction mechanism.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of cigarette production equipment, and particularly relates to a trademark paper valve body type suction mechanism of a cigarette packaging machine. BACKGROUND

[0002] The ZB45 type cigarette packaging machine is a main machine type for producing hard box products in the factory, which integrates machine, electricity and gas, detects, monitors and processes raw material feeding, product packaging quality and equipment running state of the whole automatic production process, and displays on an OPC, and the production capacity can reach 8000 cigarettes per minute (i.e. 400 packs per minute), which is a cigarette packaging production line with high automation degree. The machine set has the characteristics of good packaging quality, high reliability, stable performance, easy operation and maintenance, and strong adaptability.

[0003] The trademark paper suction mechanism of the ZB45 type cigarette packaging machine is used for sucking the trademark paper in a stack in a paper warehouse to the bottom of the box mold conveying belt one by one, and conveying to the next process by the box mold conveying belt.

[0004] However, in the actual use process, after the trademark paper is placed on the box mold conveying belt, the suction cup needs to be separated from the trademark paper through the air release mechanism. In this process, the suction cup is in communication with the outside, and a large amount of gas from the outside passes through the suction cup under the action of the suction pipe, producing a large amount of wind noise, which causes great harm to the physical and mental health of workers. SUMMARY

[0005] The purpose of the present application is to provide a trademark paper valve body type suction mechanism of a cigarette packaging machine to solve the problem of excessive noise caused by structural defects of the existing suction mechanism.

[0006] To achieve the above technical purpose, the technical scheme adopted by the present application is as follows:

[0007] A trademark paper valve body type suction mechanism of a cigarette packaging machine, comprising:

[0008] A rotating shaft rotatably installed on a rack;

[0009] A lifting rod located below the paper warehouse and penetrating the box mold conveying belt, the lifting rod being vertically slidably installed on the rack;

[0010] A first transmission mechanism installed between the rotating shaft and the lifting rod, for driving the lifting rod to reciprocate up and down;

[0011] A suction seat fixedly installed at the top end of the lifting rod, the suction seat being provided with a suction cup and a suction pipe, and a communication hole being formed in the suction seat, the suction cup and the suction pipe being communicated through the communication hole;

[0012] An air release mechanism, wherein the air release mechanism is mounted on the suction seat;

[0013] A valve, the valve being mounted on the air suction pipe and comprising a valve stem;

[0014] a second transmission mechanism, the second transmission mechanism being installed between the rotating shaft and the valve stem, and being used to drive the valve stem to rotate back and forth to realize opening and closing of the valve;

[0015] When the valve is in an open state, the deflation mechanism is in a closed state;

[0016] When the suction cup is in contact with the trademark paper in the paper magazine, the valve is opened under the action of the second transmission mechanism to form suction on the trademark paper;

[0017] When the suction cup drives the trademark paper out of the paper storage and reaches the box mold conveyor belt, the degassing mechanism opens to connect the suction cup with the outside atmosphere;

[0018] Before the deflation mechanism opens, the valve is closed under the action of the second transmission mechanism.

[0019] It is further defined that a sliding sleeve is provided on the lifting rod, and the sliding sleeve is fixedly mounted on the frame;

[0020] A cross bar is horizontally arranged on the lifting rod, and a sliding groove is vertically arranged on the frame.

[0021] This structural design completes the vertical sliding installation of the lifting rod and the frame through the mutual cooperation between the lifting rod and the sliding sleeve, the cross bar and the sliding groove. It has a simple structure, is easy to install, and is highly practical.

[0022] It is further defined that a bearing is installed on the crossbar, and the bearing is located in the slide groove.

[0023] This structural design uses bearings instead of cross bars to contact the slides, thereby converting the sliding friction between the cross bars and the slides into rolling friction between the bearings and the frame, reducing frictional resistance while extending service life, and is highly practical.

[0024] There are multiple lifting rods, and a first transmission mechanism is provided between each lifting rod and the rotating shaft.

[0025] This structural design allows for the simultaneous absorption of stacks of trademark paper from multiple paper storage bins through multiple lifting rods, thereby improving work efficiency and being highly practical.

[0026] It is further defined that the first transmission mechanism includes a first cam plate, a first swing lever and a first connecting rod;

[0027] The first cam plate is fixedly mounted on the rotating shaft, and a first cam ring groove is formed on a side wall of the first cam plate;

[0028] The middle part of the first swing rod is rotatably installed on the frame, one end of the first swing rod is rotatably installed with a first roller, and the first roller is located in the first cam ring groove;

[0029] The first connecting rod is rotatably installed on the free end of the first swing rod, and the free end of the first connecting rod is rotatably connected with the lifting rod.

[0030] Such a structure design forms a first transmission mechanism through the first cam disc, the first swing rod and the first connecting rod, realizes the up-down reciprocating movement of the lifting rod, does not need to excessively occupy the space below the lifting rod, is convenient for the installation and maintenance of various parts, and has high practicability.

[0031] Further limitation, the deflation mechanism includes a reed fixedly installed on the suction seat, the reed is installed with a blocking plug, the suction seat is provided with a deflation hole communicated with the communication hole, and the free end of the deflation hole is communicated with the outside;

[0032] The free end of the reed is located outside the suction seat, the frame is installed with a stop block, the stop block is located on the movement path of the free end of the reed and below the free end of the reed;

[0033] When the free end of the reed is not in contact with the stop block, the blocking plug is located in the deflation hole to block the deflation hole;

[0034] When the free end of the reed is in contact with the stop block, the blocking plug is separated from the deflation hole, so that the suction disc is communicated with the outside through the deflation hole.

[0035] Such a structure design forms a deflation mechanism through the cooperation of the reed, the blocking plug, the deflation hole and the stop block, utilizes the elastic force of the reed itself to drive the blocking plug to block the deflation hole, utilizes the stop block to push the free end of the reed to realize the communication between the communication hole and the outside atmosphere, and then realizes the communication between the suction disc and the outside atmosphere, realizes automatic deflation, has simple structure, does not need to additionally arrange a control mechanism, and has high practicability.

[0036] Further limitation, the second transmission mechanism includes a second cam disc, a second swing rod, a second connecting rod and a rocker;

[0037] The second cam disc is fixedly installed on the rotating shaft, and the side wall of the second cam disc is provided with a second cam ring groove;

[0038] The middle part of the second swing rod is rotatably installed on the frame, one end of the second swing rod is rotatably installed with a second roller, and the second roller is located in the second cam ring groove;

[0039] The second connecting rod is rotatably installed at the free end of the second swing rod, the rocker is rotatably installed at the free end of the second connecting rod, and the rocker is fixedly connected with the valve rod.

[0040] The second transmission mechanism is composed of the second cam plate, the second swing rod, the second connecting rod and the rocker, the reciprocating rotation of the valve rod is realized, and then the opening and closing of the valve are realized, the structure is simple, the installation is convenient, and the practicality is high.

[0041] Further limited, the valve is a ball valve.

[0042] The structure design selects the ball valve as the valve, and the ball valve has the advantage of high control precision.

[0043] Further limited, the suction pipe is provided with a filter.

[0044] The structure design filters the external gas sucked by the suction disc through the suction pipe, avoids the dust in the gas from entering the suction mechanism through the suction pipe, and has high practicality.

[0045] The application adopting the above technical scheme has the following advantages:

[0046] 1. By the cooperation of the rotating shaft, the lifting rod, the first transmission mechanism, the suction seat, the suction disc, the suction pipe, the gas release mechanism, the valve and the second transmission mechanism, the valve is controlled to be closed when the suction disc is not in contact with the trademark paper, so that the wind noise generated during suction is avoided, the overall noise of the suction mechanism is reduced, and the noise during the suction of the trademark paper is reduced to within 85 decibels;

[0047] 2. The first transmission mechanism is composed of the first cam plate, the first swing rod and the first connecting rod, the up-down reciprocating motion of the lifting rod is realized, the space below the lifting rod is not occupied too much, the installation and maintenance of various parts are facilitated, and the practicality is high.

[0048] 3. The gas release mechanism is composed of the reed, the blocking plug, the gas release hole and the stop block, the reed is driven to block the gas release hole by the elastic force of the reed, the free end of the reed is pushed by the stop block, the communication hole is communicated with the atmosphere, the suction disc is communicated with the atmosphere, automatic gas release is realized, the structure is simple, and no additional control mechanism is needed, and the practicality is high.

[0049] 4. The second transmission mechanism is composed of the second cam plate, the second swing rod, the second connecting rod and the rocker, the reciprocating rotation of the valve rod is realized, and then the opening and closing of the valve are realized, the structure is simple, the installation is convenient, and the practicality is high.

[0050] 5. The ball valve is selected as the valve, and the ball valve has the advantage of high control precision. BRIEF DESCRIPTION OF DRAWINGS

[0051] The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

[0052] Figure 1 This is a structural schematic diagram of an embodiment of a label paper valve-type suction mechanism for a cigarette packaging machine according to the present invention;

[0053] Figure 2 This is a structural schematic diagram of the rotating shaft, the first cam plate and the second cam plate in an embodiment of a trademark paper valve-type suction mechanism of a cigarette packaging machine of the present invention;

[0054] Figure 3 This is a structural diagram of the valve portion of an embodiment of a label paper valve-type suction mechanism for a cigarette packaging machine according to the present invention;

[0055] Figure 4 This is a structural schematic diagram of the second transmission mechanism portion of an embodiment of a trademark paper valve-type suction mechanism of a cigarette packaging machine of the present invention;

[0056] Figure 5 This is a schematic diagram of the structure of the degassing mechanism of the trademark paper valve body suction mechanism of the cigarette packaging machine of the present invention. Figure 1 ;

[0057] Figure 6 This is a schematic diagram of the structure of the degassing mechanism of the trademark paper valve body suction mechanism of the cigarette packaging machine of the present invention. Figure 2 ;

[0058] The main component symbols are described as follows:

[0059] Rotating axis 1,

[0060] Lifting rod 2, sliding sleeve 21, cross bar 22, bearing 220, slide groove 23,

[0061] The first cam plate 3, the first cam ring groove 30, the first swing lever 31, the first roller 310, the first connecting rod 32,

[0062] Suction seat 4, suction cup 41, suction pipe 42, connecting hole 43, reed 44, sealing plug 440, stopper 441, filter 45,

[0063] Valve 5, valve stem 50,

[0064] The second cam plate 6, the second cam ring groove 60, the second swing lever 61, the second roller 610, the second connecting rod 62, the rocker 63,

[0065] Paper warehouse 7, trademark paper 70, box mold conveyor belt 71. DETAILED DESCRIPTION

[0066] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that in the drawings or descriptions, similar or identical parts are numbered the same. Implementations not shown or described in the drawings are forms known to those of ordinary skill in the art. In addition, directional terms mentioned in the embodiments, such as "upper," "lower," "top," "bottom," "left," "right," "front," and "back," are merely references to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0067] like Figures 1-6 As shown, the present invention provides a label paper valve-type suction mechanism for a cigarette packaging machine, comprising:

[0068] Rotate a rotating shaft 1 mounted on the frame;

[0069] A lifting rod 2 is located below the paper storage 7 and passes through the box mold conveyor belt 71. The lifting rod 2 is vertically slidably mounted on the frame;

[0070] The first transmission mechanism is installed between the rotating shaft 1 and the lifting rod 2, and is used to drive the lifting rod 2 to move up and down;

[0071] The suction base 4 is fixedly mounted on the top of the lifting rod 2. A suction cup 41 and a suction pipe 42 are mounted on the suction base 4. A connecting hole 43 is provided on the suction base 4. The suction cup 41 and the suction pipe 42 are connected via the connecting hole 43.

[0072] The deflation mechanism is installed on the suction seat 4;

[0073] Valve 5, valve 5 is installed on the suction pipe 42, valve 5 includes a valve stem 50;

[0074] The second transmission mechanism is installed between the rotating shaft 1 and the valve stem 50, and is used to drive the valve stem 50 to rotate back and forth to open and close the valve 5;

[0075] When valve 5 is in the open state, the deflation mechanism is in the closed state;

[0076] When the suction cup 41 is in contact with the label paper 70 in the paper bank 7, the valve 5 is opened by the second transmission mechanism, thereby adsorbing the label paper 70.

[0077] When the suction cup 41 drives the label paper 70 out of the paper bank 7 and reaches the box mold conveyor belt 71, the deflation mechanism opens, so that the suction cup 41 is connected to the outside atmosphere;

[0078] Before the deflation mechanism opens, the valve 5 is closed under the action of the second transmission mechanism.

[0079] like Figure 1As shown, the lifting rod 2 is provided with a sliding sleeve 21, and the sliding sleeve 21 is fixedly mounted on the frame;

[0080] A cross bar 22 is horizontally provided on the lifting rod 2, and a sliding groove 23 is vertically provided on the frame.

[0081] In fact, according to actual conditions, a lifting rod 2 with a rectangular cross-section can be used to cooperate with the rectangular through-hole opened on the frame to realize the vertical sliding installation of the lifting rod 2. In this embodiment, the lifting rod 2 and the sliding sleeve 21, the cross bar 22 and the sliding groove 23 cooperate with each other to complete the vertical sliding installation of the lifting rod 2 and the frame. It has a simple structure, is easy to install, and is highly practical.

[0082] like Figure 1 As shown, a bearing 220 is installed on the cross bar 22 , and the bearing 220 is located in the slide groove 23 .

[0083] The bearing 220 replaces the cross bar 22 in contact with the slide groove 23, thereby converting the sliding friction between the cross bar 22 and the slide groove 23 into rolling friction between the bearing 220 and the frame, reducing friction resistance while extending service life, and having strong practicality.

[0084] There are multiple lifting rods 2, and a first transmission mechanism is provided between each lifting rod 2 and the rotating shaft 1.

[0085] In fact, only one lifting rod 2 may be provided according to actual conditions. In this embodiment, multiple lifting rods 2 are used to simultaneously absorb the stacked trademark papers 70 in multiple paper storage bins 7, thereby improving work efficiency and having strong practicality.

[0086] like Figure 1 and Figure 2 As shown, the first transmission mechanism includes a first cam plate 3, a first swinging rod 31 and a first connecting rod 32;

[0087] The first cam disc 3 is fixedly mounted on the rotating shaft 1 , and a first cam ring groove 30 is formed on the side wall of the first cam disc 3 ;

[0088] The middle portion of the first swinging rod 31 is rotatably mounted on the frame, and one end of the first swinging rod 31 is rotatably mounted with a first roller 310 , which is located in the first cam ring groove 30 ;

[0089] The first connecting rod 32 is rotatably mounted on the free end of the first swing rod 31 , and the free end of the first connecting rod 32 is rotatably connected to the lifting rod 2 .

[0090] In fact, according to actual conditions, a rolling wheel can also be arranged at the lower end of the lifting rod 2, a cam is arranged on the rotating shaft 1, the rolling wheel is arranged to abut against the cam, and a compression spring is arranged between the lifting rod 2 and the frame, so that the compression spring presses the lifting rod 2 downward, and the up-and-down reciprocating movement of the lifting rod 2 is realized. The first cam disc 3, the first swing rod 31 and the first connecting rod 32 constitute the first transmission mechanism, the up-and-down reciprocating movement of the lifting rod 2 is realized, the space below the lifting rod 2 is not excessively occupied, the installation and maintenance of various parts are facilitated, and the practicability is high.

[0091] As shown in Figure 5 and Figure 6 , the air release mechanism comprises a reed 44 fixedly arranged on the suction seat 4, and a blocking plug 440 is arranged on the reed 44. An air release hole is arranged on the suction seat 4 and communicates with the communication hole 43. The free end of the air release hole communicates with the outside;

[0092] The free end of the reed 44 is located outside the suction seat 4, and a stop block 441 is arranged on the frame and located on the movement path of the free end of the reed 44 and below the free end of the reed 44;

[0093] When the free end of the reed 44 is not in contact with the stop block 441, the blocking plug 440 is located in the air release hole and blocks the air release hole;

[0094] When the free end of the reed 44 is in contact with the stop block 441, the blocking plug 440 is separated from the air release hole, so that the suction cup 41 communicates with the outside through the air release hole.

[0095] In fact, according to actual conditions, a travel switch and a piston rod can also be arranged on the suction seat 4, the travel switch is used to monitor the movement position of the suction seat 4, and the piston rod is controlled according to the monitoring data to open and block the air release hole. The reed 44, the blocking plug 440, the air release hole and the stop block 441 are matched to constitute the air release mechanism. The reed 44 is used to block the air release hole by the elastic force of the reed 44, the stop block 441 is used to drive the free end of the reed 44, the communication hole 43 is communicated with the atmosphere, the suction cup 41 is communicated with the atmosphere, the automatic air release is realized, the structure is simple, no additional control mechanism is needed, and the practicability is high.

[0096] As shown in Figures 2-4 , the second transmission mechanism comprises a second cam disc 6, a second swing rod 61, a second connecting rod 62 and a rocker 63;

[0097] The second cam disc 6 is fixedly arranged on the rotating shaft 1, and a second cam ring groove 60 is arranged in the side wall of the second cam disc 6;

[0098] The middle part of the second swing lever 61 is rotatably installed on the frame, and one end of the second swing lever 61 is rotatably installed with a second roller 610, which is located in the second cam ring groove 60;

[0099] The second connecting rod 62 is rotatably installed on the free end of the second swing lever 61, and the rocker 63 is rotatably installed on the free end of the second connecting rod 62, and the rocker 63 is fixedly connected with the valve rod 50.

[0100] The second transmission mechanism is composed of the second cam disc 6, the second swing lever 61, the second connecting rod 62 and the rocker 63, which realizes the reciprocating rotation of the valve rod 50, and then realizes the opening and closing of the valve 5, which is simple in structure, convenient to install and has strong practicability.

[0101] The second transmission mechanism includes a first gear, a door frame, a first rack, a second rack and a second gear;

[0102] The first gear is installed on the rotating shaft 1;

[0103] The door frame is vertically and slidably installed on the frame;

[0104] The first rack is two and is located on the two sides of the inner wall of the door frame, and the two first racks are located at different heights on the inner wall of the door frame;

[0105] The second rack is fixedly arranged at the top end of the door frame, and the second gear is fixedly installed on the valve rod 50 and engaged with the second rack.

[0106] Through the way that the two first racks are located at different heights on the inner wall of the door frame, the two first racks can be engaged with the first gear at different times, thereby driving the door frame to reciprocate, and then the second rack arranged at the upper end of the door frame is used in cooperation with the second gear installed on the valve rod 50 and engaged with the second rack, and the valve rod 50 is driven to reciprocate by using the way that the door frame drives the second rack to reciprocate, thereby realizing the opening and closing of the valve 5.

[0107] The valve 5 is a ball valve.

[0108] Actually, a butterfly valve can also be selected as the valve 5 according to the actual situation, and the ball valve is used as the valve 5 in the embodiment, which has the advantage of high control precision.

[0109] The filter 45 is installed on the suction pipe 42.

[0110] The external gas sucked into the suction pipe 42 through the suction disc 41 is filtered through the filter 45, so that the dust in the gas is prevented from entering the suction mechanism through the suction pipe 42, which has strong practicability.

[0111] In the embodiment, when in use, an external mechanism drives the rotating shaft 1 to rotate, thereby driving the first cam disc 3 and the second cam disc 6 to rotate;

[0112] When the first cam disk 3 rotates, the lifting rod 2 is driven to move up and down through the first transmission mechanism;

[0113] When the second cam disk 6 rotates, the valve rod 50 is driven to reciprocate through the second transmission mechanism;

[0114] When the lifting rod 2 rises to contact the suction disc 41 with the trademark paper 70 in the paper library 7, the valve 5 is opened under the action of the second transmission mechanism, the free end of the reed 44 is not in contact with the stop block 441, the sealing plug 440 is located in the air release hole, and the air release mechanism is in a closed state. At this time, the suction disc 41 is in a negative pressure state under the action of the suction pipe 42, and the trademark paper 70 in the paper library 7 is adsorbed;

[0115] After the adsorption is completed, the lifting rod 2 moves downward, and the trademark paper 70 adsorbed by the suction disc 41 moves downward, so that the trademark paper 70 is separated from the paper library 7, and the trademark paper 70 reaches the box mold conveying belt 71. At this time, the free end of the reed 44 is in contact with the stop block 441, and then the sealing plug 440 is separated from the air release hole, the negative pressure state in the suction disc 41 is destroyed, and the suction disc 41 no longer forms adsorption to the trademark paper 70;

[0116] At the same time, after the adsorption is completed, the valve 5 is closed under the action of the second transmission mechanism before the air release mechanism is opened;

[0117] When the suction disc 41 no longer forms adsorption to the trademark paper 70, the suction disc 41 is lowered to below the box mold conveying belt 71 under the driving of the lifting rod 2, and the trademark paper 70 is located on the box mold conveying belt 71. The trademark paper 70 is driven by the box mold conveying belt 71 to move to the next station;

[0118] When the box mold conveying belt 71 drives the trademark paper 70 to move away from above the suction disc 41, the lifting rod 2 moves upward again under the action of the first cam disk 3 and the first transmission mechanism. Before the valve 5 is opened again, the air release mechanism is closed again, and until the lifting rod 2 rises to contact the suction disc 41 with the trademark paper 70 in the paper library 7, the valve 5 is opened again to adsorb the trademark paper 70 in the paper library 7 for the second time.

[0119] The above describes a trademark paper valve body type suction mechanism of a cigarette packaging machine. The description of the specific embodiments is only used to help understand the method and its core idea. It should be pointed out that those skilled in the art can make some improvements and modifications without departing from the principles of the present application. These improvements and modifications also fall within the protection scope of the present application.

Claims

1. A valve-type suction mechanism for label paper of a cigarette packaging machine, characterized by: include: Rotating a rotating shaft (1) mounted on a frame; A lifting rod (2) located below the paper storage (7) and passing through the box mold conveyor belt (71), wherein the lifting rod (2) is vertically slidably mounted on the frame; A first transmission mechanism, the first transmission mechanism being installed between the rotating shaft (1) and the lifting rod (2) and being used to drive the lifting rod (2) to move up and down; A suction seat (4), the suction seat (4) is fixedly mounted on the top of the lifting rod (2), a suction cup (41) and a suction pipe (42) are mounted on the suction seat (4), a connecting hole (43) is provided on the suction seat (4), and the suction cup (41) and the suction pipe (42) are connected via the connecting hole (43); An air release mechanism, the air release mechanism being mounted on the suction seat (4); A valve (5), the valve (5) being mounted on the air suction pipe (42), the valve (5) comprising a valve stem (50); a second transmission mechanism, the second transmission mechanism being installed between the rotating shaft (1) and the valve stem (50), and being used to drive the valve stem (50) to rotate back and forth, thereby realizing the opening and closing of the valve (5); When the valve (5) is in an open state, the deflation mechanism is in a closed state; During the contact between the suction cup (41) and the trademark paper (70) in the paper bank (7), the valve (5) is opened under the action of the second transmission mechanism, thereby adsorbing the trademark paper (70); When the suction cup (41) drives the trademark paper (70) to leave the paper bank (7) and reach the box mold conveyor belt (71), the degassing mechanism opens to connect the suction cup (41) to the outside atmosphere; After the adsorption is completed and before the degassing mechanism is opened, the valve (5) is closed under the action of the second transmission mechanism; When the lifting rod (2) rises to the point where the suction cup (41) contacts the trademark paper (70) in the paper bank (7), the valve (5) reopens to suck the trademark paper (70) in the paper bank (7) for the second time; The degassing mechanism comprises a reed (44) fixedly mounted on the suction seat (4), a sealing plug (440) being mounted on the reed (44), a degassing hole communicating with the communicating hole (43) being provided on the suction seat (4), and a free end of the degassing hole communicating with the outside world; The free end of the reed (44) is located outside the suction seat (4), and a stopper (441) is installed on the frame. The stopper (441) is located on the movement path of the free end of the reed (44) and below the free end of the reed (44); When the free end of the reed (44) is not in contact with the stopper (441), the sealing plug (440) is located in the vent hole, thereby sealing the vent hole; When the free end of the reed (44) contacts the stopper (441), the sealing plug (440) is separated from the air release hole, so that the suction cup (41) is connected to the outside through the air release hole.

2. The label paper valve-type suction mechanism of a cigarette packaging machine according to claim 1, characterized in that: The lifting rod (2) is provided with a sliding sleeve (21), and the sliding sleeve (21) is fixedly mounted on the frame; A cross bar (22) is horizontally provided on the lifting rod (2), and a sliding groove (23) is vertically provided on the frame.

3. The label paper valve-type suction mechanism of a cigarette packaging machine according to claim 2, characterized in that: A bearing (220) is mounted on the crossbar (22), and the bearing (220) is located in the slide groove (23).

4. The valve-type suction mechanism for label paper of a cigarette packaging machine according to claim 1, characterized in that: There are a plurality of lifting rods (2), and a first transmission mechanism is provided between each lifting rod (2) and the rotating shaft (1).

5. The label paper valve-type suction mechanism of a cigarette packaging machine according to claim 1, characterized in that: The first transmission mechanism comprises a first cam plate (3), a first swinging rod (31) and a first connecting rod (32); The first cam disc (3) is fixedly mounted on the rotating shaft (1), and a first cam ring groove (30) is provided on the side wall of the first cam disc (3); The middle portion of the first swing lever (31) is rotatably mounted on the frame, and a first roller (310) is rotatably mounted on one end of the first swing lever (31), wherein the first roller (310) is located in the first cam ring groove (30); The first connecting rod (32) is rotatably mounted on the free end of the first swing rod (31), and the free end of the first connecting rod (32) is rotatably connected to the lifting rod (2).

6. The valve-type suction mechanism for label paper of a cigarette packaging machine according to claim 1, characterized in that: The second transmission mechanism comprises a second cam plate (6), a second swinging rod (61), a second connecting rod (62) and a rocking arm (63); The second cam disc (6) is fixedly mounted on the rotating shaft (1), and a second cam ring groove (60) is provided on the side wall of the second cam disc (6); The middle portion of the second swing lever (61) is rotatably mounted on the frame, and a second roller (610) is rotatably mounted on one end of the second swing lever (61), and the second roller (610) is located in the second cam ring groove (60); The second connecting rod (62) is rotatably mounted on the free end of the second swing rod (61), the rocking rod (63) is rotatably mounted on the free end of the second connecting rod (62), and the rocking rod (63) is fixedly connected to the valve stem (50).

7. The label paper valve-type suction mechanism of a cigarette packaging machine according to claim 1, characterized in that: The valve (5) is a ball valve.

8. The label paper valve-type suction mechanism of a cigarette packaging machine according to claim 1, characterized in that: A filter (45) is installed on the air suction pipe (42).

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