A link mechanism for cigarette packaging, and a filling-in-box device

Abstract

The application relates to a connecting rod mechanism for cigarette packaging and a filling-in box device, the connecting rod mechanism comprising a connecting rod assembly and a connecting rod driving assembly, the connecting rod assembly comprising a cigarette connecting plate for contacting with an inner lining cigarette pack, and further comprising an air distribution part, the connecting rod assembly comprising an air pipe, a plurality of air suction openings being arranged on the cigarette connecting plate, one end of the air pipe being connected with the cigarette connecting plate and being communicated with the air suction openings, and the other end of the air pipe being communicated with the air distribution part, the air distribution part being capable of providing positive pressure or negative pressure to the air pipe. The connecting rod mechanism can avoid the problem of head planting of the inner lining cigarette pack when the inner lining cigarette pack is conveyed between a push rod and the connecting rod assembly, ensures the packaging quality, and simultaneously has low spacing control requirement between the cigarette connecting plate and the push rod, facilitates structure design and motion control, and is not prone to the problem of inner lining cigarette pack damage.

Description

TECHNICAL FIELD

[0001] The present application relates to the tobacco packaging technical field, and particularly relates to a connecting rod mechanism for cigarette packaging and a filling-in-box device. BACKGROUND

[0002] In the cigarette market, there are more and more types of cigarettes with special packaging, many of which are packed into the trademark box after being wrapped with the inner liner paper. The packaging method of the full-open type cigarette is shown in Fig. 1. The cigarette 001 is composed of a cigarette box 002, an inner liner paper 003 and a cigarette group 004. After passing through the cigarette group forming device and the liner paper packaging wheel, the inner liner paper 003 wraps the cigarette group 004, which is called the inner liner cigarette package 005 at this time, as shown in Fig. 2. The shape of the inner liner cigarette package 005 is shown in Fig. 3, and then the inner liner cigarette package 005 is filled into the cigarette box 002 in the filling-in-box device. Figure 1 Figure 2

[0003] In the existing packaging technology, after the inner liner cigarette package 005 is packaged in the packaging wheel, as shown in Fig. 4, the packaging wheel rotates counterclockwise, at this time, the cigarette box 002 has been transported to the position, the push rod 007 starts to push the inner liner cigarette package 005 out of the packaging wheel mold box 006, the connecting rod 008 cooperates with the push rod 007 to send the inner liner cigarette package 005 to the position above the cigarette box 002, and the supporting plate 009 is used to support the bottom of the inner liner cigarette package 005 in the process. During the movement of the push rod 007 and the connecting rod 008, the jacking mechanism simultaneously lifts the cigarette box 002, and after reaching the specified position, the filling-in-box action is performed, as shown in Fig. 5. The pressure rod 010 moves downward, and the drag rod 011 cooperates with the pressure rod 010 to fill the inner liner cigarette package 005 into the cigarette box 002. Figure 3 Figure 4

[0004] In the filling process, the most important thing is the movement coordination of the push rod 007 and the connecting rod 008. In the existing filling-in-box device, when the connecting rod 008 and the push rod 007 transport the inner liner cigarette package 005, it is necessary to ensure that the distance between the connecting rod 008 and the push rod 007 is a constant value. If the distance is too small, it will cause damage to the cigarettes in the inner liner cigarette package 005, and if the distance is too large, the inner liner cigarette package 005 will appear to be tilted during the filling process (at this time, the supporting plate 009 no longer supports), as shown in Fig. 6. After tilting, the pressure rod 010 will cause great damage to the cigarette group 004 when performing the downward action. Figure 5

[0005] ​​​​​In the prior art, there are two cases that make the distance setting between the push rod 007 and the connecting rod 008 complicated. One is that the length L of the inner-lining cigarette pack 005 itself has an error of ±0.5 mm, so the minimum distance between the push rod 007 and the connecting rod 008 is equal to L+0.5 mm+2*the thickness of the inner-lining paper 003. When L is a standard value or L-0.5 mm, the distance between the push rod 007 and the connecting rod 008 will be too large, and the inner-lining cigarette pack 005 will be skewed after being discharged from the packer wheel mold box 006. The other is that the push rod 007 and the connecting rod 008 are both controlled by a cam to realize the reciprocation of the connecting rod 008. The machining precision of the parts and the assembly gap will affect the distance between the push rod 007 and the connecting rod 008. In actual application, the distance between the push rod 007 and the connecting rod 008 will fluctuate by about 0.5 mm when the inner-lining cigarette pack 005 is conveyed, so the distance between the push rod 007 and the connecting rod 008 is generally set to L+1 mm+2*the thickness of the inner-lining paper 003. In this distance, the inner-lining cigarette pack 005 is conveyed, and the skewed phenomenon is prone to occur, especially when the machine speed is low, the skewed phenomenon is particularly serious. SUMMARY

[0006] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present application is to provide a connecting rod mechanism for cigarette packaging and a filling-in-box device, which can avoid the skewed problem of the inner-lining cigarette pack when conveyed between the push rod assembly and the connecting rod assembly, ensure the packaging quality, and facilitate the structural design and motion control, and is not prone to damage the inner-lining cigarette pack.

[0007] To achieve the above-mentioned purpose, the present application provides a connecting rod mechanism for cigarette packaging, which comprises a connecting rod assembly and a connecting rod driving assembly. The connecting rod assembly comprises a cigarette contacting plate for contacting with the inner-lining cigarette pack, and a gas distribution part. The connecting rod assembly comprises an air pipe. A plurality of air suction openings are arranged on the cigarette contacting plate. One end of the air pipe is connected with the cigarette contacting plate and communicates with the air suction openings, and the other end of the air pipe communicates with the gas distribution part. The gas distribution part can provide positive pressure or negative pressure to the air pipe.

[0008] Further, the connecting rod assembly further comprises a support and an elastic structure. The support is connected with the connecting rod driving assembly. The cigarette contacting plate is installed on the support and can move linearly relative to the support in the conveying motion direction. The elastic structure is arranged between the support and the cigarette contacting plate. When the cigarette contacting plate is extruded by the inner-lining cigarette pack, the cigarette contacting plate moves towards the support, and the elastic structure is in an elastic energy storage state.

[0009] Further, the connecting rod assembly further comprises a guide structure for guiding the linear movement of the cigarette contacting plate relative to the support. The guide structure comprises a sliding sleeve arranged on the support and a sliding rod installed in the sliding sleeve. The cigarette contacting plate is fixedly connected with the sliding rod.

[0010] Further, the elastic structure comprises a spring sleeved on the sliding rod. The two ends of the spring respectively abut against the support and the cigarette contacting plate.

[0011] Further, the connecting rod driving assembly comprises a linear motion driving rod, the driving rod is fixedly connected with the support of the connecting rod assembly, the driving rod is provided with a ventilation hole, one end of the air pipe is fixedly connected with the support and communicates with the ventilation hole, and the air distribution part communicates with the ventilation hole in the driving rod.

[0012] Further, the connecting rod driving assembly further comprises a cam and a gear, the driving rod comprises a rack part, the cam drives the gear to rotate, and the gear is engaged with the rack part.

[0013] Further, the air inlet connecting piece is further provided with an air chamber, the driving rod passes through the air chamber and can move in the air chamber, the ventilation hole communicates with the air chamber, the outer wall of the driving rod is sealed with the inner wall of the air chamber, and the air distribution part communicates with the air chamber.

[0014] Further, the air distribution part comprises an air distribution disc and a switching disc, the air distribution disc is provided with a negative pressure air distribution channel, an air outlet channel and a positive pressure air distribution channel, the end surface of the air distribution disc is provided with a negative pressure air distribution port, an air outlet port, a positive pressure air distribution port and a positive pressure air exhaust port, the negative pressure air distribution port communicates with the negative pressure air distribution channel, the air outlet port communicates with the air outlet channel, and the positive pressure air distribution port and the positive pressure air exhaust port both communicate with the positive pressure air distribution channel; the switching disc is tightly attached to the end surface of the air distribution disc and the contact surface between the two is sealed, the end surface of the switching disc attached to the air distribution disc is provided with a positive and negative pressure switching groove and a positive pressure pressure relief groove, the positive pressure pressure relief groove is provided with a pressure relief through hole, and the switching disc can move to a negative pressure position or a positive pressure position relative to the air distribution disc; when the switching disc is located at the negative pressure position, the negative pressure air distribution port and the air outlet port are both located in the positive and negative pressure switching groove, the positive pressure air distribution port is covered by the end surface of the switching disc, and the positive pressure air exhaust port is located in the positive pressure pressure relief groove; when the switching disc is located at the positive pressure position, the positive pressure air distribution port and the air outlet port are located in the positive and negative pressure switching groove, and the negative pressure air distribution port and the positive pressure air exhaust port are covered by the switching disc.

[0015] Further, the air distribution part further comprises a rotating shaft and a pressing assembly, the switching disc is installed on the rotating shaft and fixedly connected with the rotating shaft in the circumferential direction, and the pressing assembly is installed on the rotating shaft and fixedly connected with the rotating shaft in the axial direction, and the pressing assembly is pressed against the switching disc so that the switching disc is tightly attached to the end surface of the air distribution disc.

[0016] The application further provides a filling into box device for cigarette packaging, which comprises a push rod and the connecting rod mechanism.

[0017] As described above, the connecting rod mechanism and the filling into box device have the following beneficial effects:

[0018] By setting the air distribution part, air pipe and suction port in the connecting rod assembly, when in use, the connecting rod driving assembly drives the connecting rod assembly to reciprocate, and cooperates with the push rod to carry out the conveying and boxing of the inner-lining cigarette pack, when the push rod makes the inner-lining cigarette pack close to the cigarette receiving plate, the air distribution part provides negative pressure, the suction port on the cigarette receiving plate is negative pressure, the inner-lining paper of the inner-lining cigarette pack is adsorbed on the cigarette receiving plate, so that the problem of head planting does not occur in the conveying process, and the distance between the push rod and the cigarette receiving plate can be more conveniently controlled. When conveying to the position and needing to press the inner-lining cigarette pack into the carton, the air distribution part provides positive pressure, and the suction port is positive pressure, so as to prevent the friction force of the contact surface between the inner-lining paper and the cigarette receiving plate from being too large and causing the damage of the cigarette. The connecting rod mechanism of the present application can avoid the problem of head planting of the inner-lining cigarette pack when conveying between the push rod and the connecting rod assembly, ensure the packaging quality, and simultaneously control the distance between the cigarette receiving plate and the push rod with low requirement, facilitate the structure design and motion control, and are not prone to the problem of damage of the inner-lining cigarette pack. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a cigarette.

[0020] Figure 2 It is a structural schematic diagram of an inner-lining cigarette pack wrapped by inner-lining paper.

[0021] Figure 3 It is a schematic diagram of conveying the inner-lining cigarette pack by the push rod and the connecting rod in the prior art.

[0022] Figure 4 It is a schematic diagram of boxing the inner-lining cigarette pack conveyed by the push rod and the connecting rod in the prior art.

[0023] Figure 5 It is a schematic diagram of the problem of head planting of the inner-lining cigarette pack in the push rod and the connecting rod in the prior art.

[0024] Figure 6 It is a structural schematic diagram of the connecting rod mechanism in the present application.

[0025] Figure 7 It is a structural schematic diagram of the connecting rod assembly in the present application.

[0026] Figure 8 It is a sectional view of the air inlet connecting piece in the present application.

[0027] Figure 9 It is a structural schematic diagram of the air distribution part in the present application.

[0028] Figure 10 It is an exploded view of the air distribution part in the present application.

[0029] Figure 11 It is a structural schematic diagram of the switching disc in the present application.

[0030] Figure 12The structure diagram of the gas distribution plate in the present application.

[0031] Figure 13 The working diagram of the gas distribution plate in the present application when outputting negative pressure.

[0032] Figure 14 The working diagram of the gas distribution plate in the present application when outputting positive pressure.

[0033] Element number explanation

[0034] 001 cigarette

[0035] 002 cigarette box

[0036] 003 inner liner paper

[0037] 004 cigarette group

[0038] 005 inner liner cigarette pack

[0039] 006 packing wheel mold box

[0040] 007 push rod

[0041] 008 connecting rod

[0042] 009 supporting plate

[0043] 010 pressing rod

[0044] 011 pulling rod

[0045] 1 connecting rod assembly

[0046] 11 cigarette connecting plate

[0047] 111 air suction port

[0048] 112 internal air duct

[0049] 12 support

[0050] 13 air pipe

[0051] 14 pipe joint

[0052] 15 sliding sleeve

[0053] 16 sliding rod

[0054] 17 spring

[0055] 18 connecting sleeve

[0056] 2 connecting rod driving assembly

[0057] 21 driving rod

[0058] 211 rack portion

[0059] 212 optical axis portion

[0060] 213 vent hole

[0061] 22 gear

[0062] 23 shaft

[0063] 3 air inlet connector

[0064] 31 pipe joint

[0065] 32 air chamber

[0066] 33 sealing ring

[0067] 4 base

[0068] 5 air distribution portion

[0069] 51 air distribution disc

[0070] 511 negative pressure air distribution port

[0071] 512 air outlet port

[0072] 513 positive pressure air distribution port

[0073] 514 positive pressure air release port

[0074] 52 switching disc

[0075] 521 positive and negative pressure switching groove

[0076] 522 positive pressure pressure release groove

[0077] 523 pressure release through hole

[0078] 53 negative pressure connector

[0079] 54 air outlet connector

[0080] 55 positive pressure connector

[0081] 56 rotating shaft

[0082] 57 clamping block

[0083] 58 compression spring

[0084] 59 pressing plate DETAILED DESCRIPTION

[0085] The embodiments of the present application will be described in conjunction with the preferred specific embodiments herein. It is to be understood that other advantages can be obtained from the techniques disclosed in the present application that are apparent to those ordinarily skilled in the art and the present application is intended to cover any and all such advantages and equivalents.

[0086] It is to be understood that the structure, proportion, size and the like shown in the drawings of the present specification are only used to cooperate with the content disclosed in the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the limited conditions of the implementation of the present application, and therefore do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like in the present specification are only for clear description, and are not used to limit the scope of the present application, and the change or adjustment of the relative relationship is also considered as the implementation of the present application without changing the technical content.

[0087] Referring to Figures 6 to 14 The present application provides a rod connecting mechanism for cigarette packaging, comprising a rod connecting assembly 1 and a rod connecting driving assembly 2, the rod connecting assembly 1 comprises a cigarette connecting plate 11 for contacting with the inner lining cigarette package, and the rod connecting driving assembly 2 drives the rod connecting assembly 1 to reciprocate and cooperates with the push rod to transport the inner lining cigarette package. The rod connecting mechanism of the present application further comprises an air distribution part 5, the rod connecting assembly 1 comprises an air pipe 13, the cigarette connecting plate 11 is provided with a plurality of air suction ports 111, one end of the air pipe 13 is connected with the cigarette connecting plate 11 and communicates with the air suction ports 111, and the other end of the air pipe 13 communicates with the air distribution part 5, and the air distribution part 5 can provide positive pressure or negative pressure to the air pipe 13.

[0088] The basic working principle of the rod connecting mechanism of the present application is as follows: in use, the rod connecting driving assembly 2 drives the rod connecting assembly 1 to reciprocate and cooperates with the push rod to transport and pack the inner lining cigarette package, after the inner lining cigarette package is pushed out of the packaging wheel mold box by the push rod, the inner lining cigarette package approaches the cigarette connecting plate 11, at this time the air distribution part 5 provides negative pressure, the air suction ports 111 on the cigarette connecting plate 11 are negative pressure through the air pipe 13, the inner lining paper wrapping the outer part of the cigarette group of the inner lining cigarette package is adsorbed on the cigarette connecting plate 11, therefore when the distance between the push rod and the cigarette connecting plate 11 is slightly greater than the inner lining cigarette package, the problem of the head of the inner lining cigarette package shown in the drawing will not occur, and the distance between the push rod and the cigarette connecting plate 11 can be more conveniently controlled. Figure 5 When the inner lining cigarette package is transported to the position and the pressing rod needs to press the inner lining cigarette package into the paper box, the air distribution part 5 provides positive pressure, the air suction ports 111 on the cigarette connecting plate 11 are positive pressure, so as to prevent the friction force between the inner lining paper and the contact surface of the cigarette connecting plate 11 from being too large and causing damage to the cigarette. The rod connecting mechanism of the present application can avoid the problem of the head of the inner lining cigarette package when the inner lining cigarette package is transported between the push rod and the rod connecting assembly 1, and can ensure the packaging quality, and the distance between the cigarette connecting plate 11 and the push rod is low in control requirement, which is convenient for structure design and motion control, and is not prone to the problem of damage to the inner lining cigarette package.

[0089] Referring to Figures 6 to 14 The present application is further described below with one specific embodiment:

[0090] In the embodiment, referring to Figure 6 and Figure 7 , the rod assembly 1 further comprises a support 12 connected with the rod driving assembly 2, and a receiving plate 11 is installed on the support 12 and can move linearly relative to the support 12 in the conveying direction, and an elastic structure is arranged between the support 12 and the receiving plate 11. For the convenience of description, the conveying direction of the rod assembly 1 is taken as the left-right direction, and the receiving plate 11 is located at the front side of the support 12 and can move linearly relative to the support 12. When the receiving plate 11 is pressed by the inner-lining cigarette pack at the front side, the receiving plate 11 moves towards the support 12, and the elastic structure is in an elastic energy storage state. The receiving plate 11 is installed on the support 12 through a guide structure, the guide structure comprises a sliding sleeve 15 arranged on the support 12 and a sliding rod 16 installed in the sliding sleeve 15, the receiving plate 11 is fixedly connected to the sliding rod 16, and the sliding rod 16 is arranged in the front-rear direction and can move in the sliding sleeve 15. The guide structure can stably guide the front-rear linear movement of the receiving plate 11, and the elastic structure comprises a spring 17 sleeved on the sliding rod 16, and the two ends of the spring 17 abut against the support 12 and the receiving plate 11, respectively. In the above manner, the rod assembly 1 is telescopic, in use, the rod driving assembly 2 drives the entire rod assembly 1 to move forward and backward by driving the support 12, when no cigarette is received, the spring 17 is in a natural state, after the push rod pushes the inner-lining cigarette pack out of the module box of the packaging wheel, the inner-lining cigarette pack approaches the receiving plate 11, the position of the receiving plate 11 has a certain adjustment space, and the receiving plate 11 can move a certain distance towards the support 12 under pressure, so that the receiving plate 11 can be ensured to contact the inner-lining cigarette pack, the distance between the receiving plate 11 and the push rod does not need to be strictly kept as a specified distance in design, and slight changes can occur in the conveying movement, which facilitates the structure design and movement control, reduces the bruising of the inner-lining cigarette pack, and ensures that the rod assembly 1 is not damaged when the pack is blocked. Of course, in other embodiments, the guide structure and the mounting form of the receiving plate 11 and the support 12 can also adopt other suitable forms.

[0091] In the embodiment, referring to Figure 7 , the air suction port 111 in the receiving plate 11 is a plurality of air suction ports arranged at different positions to correspond to different positions of the side surface of the inner-lining cigarette pack. An internal air duct 112 is formed in the receiving plate 11 and is in communication with all the air suction ports 111, and the pipe joint 14 at the front end of the air pipe 13 is in communication with the internal air duct 112.

[0092] In the embodiment, referring to Figure 6 , Figure 7 and Figure 8As a preferred design, the connecting rod driving assembly 2 comprises a straight-line moving driving rod 21 fixedly connected with the support 12 of the connecting rod assembly 1 for driving the connecting rod assembly 1 to move straightly forward and backward, the driving rod 21 is provided with a ventilation hole 213, the rear end of the air pipe 13 is fixedly connected in the support 12 and communicates with the ventilation hole 213, and the air distribution part 5 communicates with the ventilation hole 213 in the driving rod 21. Specifically, the air pipe 13 is connected with the pipe joint 14 at both ends, which are fixedly connected with the connecting plate 11 and the support 12 respectively. A hollow connecting sleeve 18 is arranged on the support 12, the pipe joint 14 at the rear end of the air pipe 13 is connected with the connecting sleeve 18, and the front end of the driving rod 21 is connected with the connecting sleeve 18. The air pipe 13 in the connecting rod assembly 1 is fixedly connected at both ends and has a certain expansion space, and the connection is simple and stable.

[0093] In the embodiment, referring to Figure 6 and Figure 8 , the connecting rod driving assembly 2 further comprises a cam (not shown in the drawings) and a gear 22 for driving the driving rod 21 to move straightly forward and backward, the cam, the gear 22 and the driving rod 21 are all installed on a base 4, the driving rod 21 comprises a rack part 211, the cam drives the gear 22 to rotate through a shaft 23, the gear 22 is engaged with the rack part 211, the cam drives the gear 22 to rotate intermittently, and the gear 22 drives the driving rod 21 to move straightly forward and backward.

[0094] In the embodiment, in order to ensure that the ventilation hole 213 in the moving driving rod 21 keeps stable communication with the air distribution part 5, as a preferred design, the connecting rod mechanism further comprises an air inlet connecting piece 3, the air inlet connecting piece 3 is provided with an air chamber 32, the driving rod 21 passes through the air chamber 32 and can move in the air chamber 32, the ventilation hole 213 communicates with the air chamber 32, the outer wall of the driving rod 21 is sealed with the inner wall of the air chamber 32, specifically, the air inlet connecting piece 3 is fixed on the base 4, the driving rod 21 comprises a smooth light shaft part 212, the light shaft part 212 is located in the air chamber 32, a sealing ring 33 is sleeved on the light shaft part 212 to seal with the wall of the air chamber 32, so that a sealed space is formed in the air chamber 32, and the light shaft part 212 can move forward and backward in the air chamber 32, a pipe joint 31 is arranged on the air inlet connecting piece 3, the air distribution part 5 is connected with the pipe joint 31 through a pipeline, the connection is convenient, the air distribution part 5 communicates with the air chamber 32 well. The air distribution part 5 provides positive and negative pressure, enters the sealed space in the air chamber 32 through the pipe joint 31, then enters the ventilation hole 213, and then reaches the suction port 111 through the air pipe 13.

[0095] In the embodiment, referring to Figure 9 , Figure 10 , Figure 11 and Figure 12, as a preferred design, the gas distribution part 5 includes a gas distribution disc 51 and a switching disc 52, the gas distribution disc 51 is provided with a negative pressure gas distribution channel, an outlet gas channel and a positive pressure gas distribution channel, the end face of the gas distribution disc 51 is provided with a negative pressure gas distribution port 511, an outlet gas port 512, a positive pressure gas distribution port 513 and a positive pressure exhaust port 514, the negative pressure gas distribution port 511 is in communication with the negative pressure gas distribution channel, the outlet gas port 512 is in communication with the outlet gas channel, and the positive pressure gas distribution port 513 and the positive pressure exhaust port 514 are in communication with the positive pressure gas distribution channel; the switching disc 52 is tightly attached to the end face of the gas distribution disc 51 and the contact surface between the two is sealed, the switching disc 52 can cover the negative pressure gas distribution port 511, the outlet gas port 512, the positive pressure gas distribution port 513 and the positive pressure exhaust port 514, the contact between the end face of the gas distribution disc 51 and the end face of the switching disc 52 is sealed contact and there is no gas leakage; the end face of the switching disc 52 attached to the gas distribution disc 51 is provided with a positive and negative pressure switching groove 521 and a positive pressure relief groove 522, the positive pressure relief groove 522 is provided with a relief through hole 523; the switching disc 52 can move to a negative pressure position or a positive pressure position relative to the gas distribution disc 51; when the switching disc 52 is at the negative pressure position, the negative pressure gas distribution port 511 and the outlet gas port 512 are located in the positive and negative pressure switching groove 521, the positive pressure gas distribution port 513 is covered by the end face of the switching disc 52, and the positive pressure exhaust port 514 is located in the positive pressure relief groove 522; when the switching disc 52 is at the positive pressure position, the positive pressure gas distribution port 513 and the outlet gas port 512 are located in the positive and negative pressure switching groove 521, and the negative pressure gas distribution port 511 and the positive pressure exhaust port 514 are covered by the switching disc 52. Preferably, the gas distribution disc 51 is provided with a negative pressure connector 53, an outlet connector 54 and a positive pressure connector 55, which are respectively installed on the ports of the negative pressure gas distribution channel, the outlet gas channel and the positive pressure gas distribution channel, to facilitate connection with the pipeline.

[0096] In the embodiment, further, the switching disc 52 adopts a rotating mode to form a rotating disc. Specifically, the gas distribution part 5 further comprises a rotating shaft 56 and a pressing assembly. The rotating shaft 56 penetrates through the gas distribution disc 51, and the gas distribution pipe 13 is fixedly installed. The switching disc 52 is installed on the rotating shaft 56 and fixedly connected with the rotating shaft 56 in the circumferential direction, and rotates synchronously with the rotating shaft 56. The pressing assembly is installed on the rotating shaft 56 and fixedly connected with the rotating shaft 56 in the axial direction, and presses against the switching disc 52 to make the switching disc 52 tightly adhere to the end surface of the gas distribution disc 51. The pressing assembly comprises a clamping block 57, a pressing plate 59 and a plurality of compression springs 58. The clamping block 57 is clamped and fixed on the rotating shaft 56. The pressing plate 59 is arranged between the switching disc 52 and the clamping block 57. The compression springs 58 are arranged between the clamping block 57 and the pressing plate 59. The clamping block 57 applies pressure to the pressing plate 59 through the compression springs 58. The pressing plate 59 presses against the switching disc 52 to make the switching disc 52 tightly adhere to the end surface of the gas distribution disc 51, and a certain pressure is formed between the contact surfaces to form a sealing contact, so that the air leakage problem does not occur at the contact surface. The compression springs 58 make the switching disc 52 more stable and reliable under pressure. The pressing plate 59 makes the switching disc 52 more uniform under pressure. In the embodiment, the switching disc 52 preferably adopts a graphite disc, which can maintain good sealing contact during rotation when contacting the end surface of the gas distribution disc 51. Of course, in other embodiments, the switching disc 52 can also move in a relative linear motion or other motion on the gas distribution disc 51, as long as the position switching can be realized.

[0097] In the embodiment, referring to Figure 11 , the switching disc 52 is an annular disc. Since the rotating motion mode is adopted, the positive and negative pressure switching grooves 521 and the positive pressure relief grooves 522 on the switching disc 52 are preferably arc-shaped grooves and are located at different radii. The lengths of the two are set according to actual needs. The gas distribution disc 51 is an annular disc. The negative pressure gas distribution ports 511, the gas outlet ports 512 and the positive pressure gas distribution ports 513 are located at the same radius position on the gas distribution disc 51. The positive pressure gas discharge ports 514 are located at another radius position. There are two relief through holes 523 in the positive pressure relief grooves 522.

[0098] In the embodiment, the negative pressure gas distribution passages of the gas distribution part 5 are connected with a negative pressure gas source through the negative pressure joint 53 and the pipeline. The positive pressure gas distribution passages are connected with a positive pressure gas source through the positive pressure joint 55 and the pipeline. The gas outlet ports 512 are connected with the pipe joint 3114 of the air inlet connecting piece 3 through the gas outlet joint 54 and the pipeline. The switching disc 52 is switched between the positive pressure position and the negative pressure position by the rotating shaft 56. When negative pressure needs to be output, the switching disc 52 is rotated and switched to the negative pressure position, referring to Figure 12At this time, the negative pressure air distribution port 511 and the air outlet port 512 are located in the positive and negative pressure switching groove 521, and are kept in communication through the positive and negative pressure switching groove 521, the air outlet port 512 outputs negative pressure into the air chamber 32, and finally to the air inlet 111, the positive pressure air distribution port 513 is capped by the end face of the switching disc 52, so as to be sealed and not have gas entering, the positive pressure relief port 514 is located in the positive pressure relief groove 522, and the positive pressure is discharged through the positive pressure relief groove 522 and the relief through hole 523, so as to prevent the positive pressure gas from toppling the switching disc 52 and the air distribution disc 51, thereby causing air leakage and affecting the air distribution function. When it is necessary to output positive pressure, the switching disc 52 is rotated to switch to the positive pressure position, referring to Figure 13 , the positive pressure air distribution port 513 and the air outlet port 512 are located in the positive and negative pressure switching groove 521, and are kept in communication through the positive and negative pressure switching groove 521, the air outlet port 512 outputs positive pressure into the air chamber 32, and finally to the air inlet 111, the negative pressure air distribution port 511 and the positive pressure relief port 514 are capped by the switching disc 52, so as to seal the negative pressure air distribution port 511 and not have gas entering, and the positive pressure gas will not be discharged from the positive pressure relief port 514. The air distribution part 5 in the embodiment adopts a mechanical structure, and can switch the positive and negative pressure faster and more accurately.

[0099] Of course, the air distribution part 5 in the application is not limited to the form in the above embodiment, and in other embodiments, other existing suitable structures can also be adopted, for example, a high-speed electromagnetic valve can be adopted.

[0100] The application provides a filling-in-box device for cigarette packaging, and the filling-in-box device for cigarette packaging comprises a push rod and further comprises the connecting rod mechanism, the cigarette connecting plate 11 of the connecting rod mechanism is arranged opposite to the push rod, the inner lining cigarette package is clamped between the cigarette connecting plate 11 and the push rod to be output, and then the inner lining cigarette package is pressed down into the cigarette box through the pressing rod.

[0101] In the connecting rod mechanism in the application, in addition to being used in the filling-in-box device, the connecting rod mechanism can also be used in other occasions requiring cigarette connection and conveying in the cigarette packaging process.

[0102] It can be known that the connecting rod mechanism and the filling-in-box device have the following beneficial effects:

[0103] 1. The connecting rod assembly 1 can adsorb the inner lining cigarette package, avoid the inner lining cigarette package from appearing the problem of being planted in the head when being conveyed between the push rod and the connecting rod assembly 1, ensure the packaging quality, and prevent the friction force between the inner lining paper and the contact surface of the cigarette connecting plate 11 from being too large when being pressed down into the box, so as to cause the damage of the cigarette.

[0104] 2. The telescopic connecting rod assembly 1 can ensure the contact between the cigarette receiving plate 11 and the inner-lining cigarette package, the distance between the cigarette receiving plate 11 and the push rod does not need to be strictly kept as a specified distance in the design, the distance can slightly change in the movement process, the structure design and movement control can be facilitated, the inner-lining cigarette package can be prevented from being pressed, and the connecting rod assembly 1 can be prevented from being broken when the package is blocked.

[0105] 3. The mechanical air distribution part 5 can switch the positive pressure and the negative pressure more quickly and more accurately.

[0106] In summary, the present application effectively overcomes the shortcomings in the prior art and has a high industrial utilization value.

[0107] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and category of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A spigot mechanism for cigarette packaging, comprising a spigot assembly (1) and a spigot drive assembly (2), the spigot assembly (1) comprising a cigarette spigot plate (11) for contact with an inner lined cigarette pack, characterised in that: The gas distribution part (5) is connected with the air pipe (13) at one end and communicates with the air suction port (111) of the cigarette receiving plate (11), and communicates with the gas distribution part (5) at the other end, and the gas distribution part (5) can provide positive pressure or negative pressure to the air pipe (13); the cigarette receiving plate (11) is installed on the support (12) and can move linearly in the conveying direction relative to the support (12), and the elastic structure is arranged between the support (12) and the cigarette receiving plate (11), and when the cigarette receiving plate (11) is extruded by the inner lining cigarette pack, it moves towards the support (12), and the elastic structure is in an elastic energy storage state; the gas distribution part (5) includes a gas distribution disc (51) and a switching disc (52), the gas distribution disc (51) is provided with a negative pressure gas distribution channel, an air outlet channel and a positive pressure gas distribution channel, the end face of the gas distribution disc (51) is provided with a negative pressure gas distribution port (511), an air outlet port (512), a positive pressure gas distribution port (513) and a positive pressure exhaust port (514), the negative pressure gas distribution port (511) is in communication with the negative pressure gas distribution channel, the air outlet port (512) is in communication with the air outlet channel, and the positive pressure gas distribution port (513) and the positive pressure exhaust port (514) are in communication with the positive pressure gas distribution channel; the switching disc (52) is tightly attached to the end face of the gas distribution disc (51) and the contact surface therebetween is sealed, the end face of the switching disc (52) attached to the gas distribution disc (51) is provided with a positive and negative pressure switching groove (521) and a positive pressure relief groove (522), the positive pressure relief groove (522) is provided with a relief through hole (523), and the switching disc (52) can move to a negative pressure position or a positive pressure position relative to the gas distribution disc (51); when the switching disc (52) is located at the negative pressure position, the negative pressure gas distribution port (511) and the air outlet port (512) are located in the positive and negative pressure switching groove (521), the positive pressure gas distribution port (513) is covered by the end face of the switching disc (52), and the positive pressure exhaust port (514) is located in the positive pressure relief groove (522); when the switching disc (52) is located at the positive pressure position, the positive pressure gas distribution port (513) and the air outlet port (512) are located in the positive and negative pressure switching groove (521), and the negative pressure gas distribution port (511) and the positive pressure exhaust port (514) are covered by the switching disc (52).

2. The linkage of claim 1, wherein: The cigarette receiving plate (11) is fixedly connected to the sliding rod (16).

3. The linkage of claim 2, wherein: The elastic structure includes a spring (17) sleeved on the sliding rod (16), and the two ends of the spring (17) abut against the support (12) and the cigarette receiving plate (11) respectively.

4. The linkage of claim 1, wherein: The connecting rod driving assembly (2) comprises a straight-line motion driving rod (21), the driving rod (21) is fixedly connected with the support (12) of the connecting rod assembly (1), the driving rod (21) is provided with a ventilation hole (213), one end of the air pipe (13) is fixedly connected with the support (12) and is communicated with the ventilation hole (213), and the gas distribution part (5) is communicated with the ventilation hole (213) in the driving rod (21).

5. The linkage of claim 4, wherein: The connecting rod driving assembly (2) further comprises a cam and a gear (22), the driving rod (21) comprises a rack part (211), the cam can drive the gear (22) to rotate, and the gear (22) is engaged with the rack part (211).

6. The linkage of claim 4, wherein: Further comprising an air inlet connecting piece (3), the air inlet connecting piece (3) is provided with an air chamber (32), the driving rod (21) passes through the air chamber (32) and can move in the air chamber (32), the ventilation hole (213) is communicated with the air chamber (32), the outer wall of the driving rod (21) is sealed with the inner wall of the air chamber (32), and the gas distribution part (5) is communicated with the air chamber (32).

7. The linkage of claim 1, wherein: The gas distribution part (5) further comprises a rotating shaft (56) and a pressing assembly, the switching disc (52) is installed on the rotating shaft (56) and is fixedly connected with the rotating shaft (56) in the circumferential direction, the pressing assembly is installed on the rotating shaft (56) and is fixedly connected with the rotating shaft (56) in the axial direction, and the pressing assembly is pressed against the switching disc (52) to make the switching disc (52) tightly adhere to the end face of the gas distribution disc (51).

8. A cartoning apparatus for cigarette packs, comprising a pusher, characterised in that: Further comprising the connecting rod mechanism as claimed in any one of claims 1 to 7, and the cigarette connecting plate (11) of the connecting rod mechanism is oppositely arranged with the push rod.

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