A cigarette pushing structure of a cigarette packing machine

Abstract

The present invention discloses a cigarette pushing structure of a cigarette packing machine, which includes a fixed push rod and a rotating push rod arranged side by side. The rotating push rod is provided with a rotating abutting portion for abutting the cigarette pack. The first rotating rod and the second rotating rod with different rotating centers are respectively arranged on the rotating push rod. The rotating center of the first rotating rod is fixedly arranged relative to the whole cigarette pushing structure, and the rotating abutting portion is located on the second rotating rod. The positions of the first rotating rod and the second rotating rod close to or abutting the edge cigarette pack are the ends. During the process of retracting the rotating push rod after the cigarette pack is pushed, the distance between the two ends gradually decreases. By adopting the present invention, since the rotating abutting portion retracts faster, the length of the rotating abutting portion can be extended to ensure sufficient contact between the end of the rotating abutting portion and the end cigarette pack in the cigarette pack to be pushed, effectively preventing the end cigarette pack from tipping over due to too small contact area during the cigarette pushing process, and ensuring the smooth progress of the cigarette pushing process.

Description

Technical Field

[0001] The present invention relates to the field of cigarette pushing devices, and particularly to a cigarette pushing structure of a cigarette packing machine. Background Art

[0002] A cigarette pushing structure is disclosed in the patent "A cigarette pushing mechanism for a cigarette packing machine" (Publication No.: CN114435672A). However, when pushing cigarettes with this structure, there are two movements. One is that the cigarette packets are continuously pushed forward horizontally, and the other is that multiple cigarette packets are grouped longitudinally and pushed forward by the cigarette pushing mechanism for packaging. Since the traveling speed of the cigarette packets remains unchanged, the length of the rotating end of the cigarette pushing mechanism needs to be made short to prevent the rotating end from hitting the newly entering cigarette packets in the working area horizontally when retracting, resulting in insufficient contact area between the end of the rotating end and the end cigarette packets. The end of the rotating end can only push half the width of the end cigarette packet, which will cause the end cigarette packets to be prone to tipping over. Summary of the Invention

[0003] The purpose of the present invention is to provide a cigarette pushing structure of a cigarette packing machine that increases the contact area between the tipping mechanism and the end cigarette packets and effectively prevents the end cigarette packets from tipping over, aiming at the problem that the cigarette pushing mechanism of the existing cigarette packing machine is prone to tipping over the end cigarette packets.

[0004] In order to achieve the above invention purpose, the present invention provides the following technical solutions:

[0005] A cigarette pushing structure of a cigarette packing machine includes a fixed push rod and a rotating push rod arranged side by side. The rotating push rod is provided with a rotating abutting portion for abutting the cigarette packets. The first rotating rod and the second rotating rod with different rotating centers are respectively arranged on the rotating push rod. The rotating center of the first rotating rod is fixedly arranged relative to the entire cigarette pushing structure, and the rotating abutting portion is located on the second rotating rod. The positions of the first rotating rod and the second rotating rod close to or abutting the edge cigarette packets are the ends. During the process of retracting the rotating push rod after the cigarette packets are pushed, the distance between the two ends gradually decreases.

[0006] The present invention adopting the above technical solution is provided with a fixed push rod and a rotating push rod arranged side by side. The rotating push rod is rotatable and is respectively provided with a first rotating rod and a second rotating rod. Since during the process of the end of pushing the cigarette packet and the retraction of the rotating push rod, the distance between the two ends located on the first rotating rod and the second rotating rod gradually decreases, it can be known that the rotation center of the second rotating rod is independently arranged and the center position is not fixed relative to the entire cigarette pushing structure. It can also be deduced that the second rotating rod retracts faster in the cigarette pushing direction relative to the first rotating rod fixed to the center; since the rotating abutting part is arranged on the second rotating rod, it can be known that during the retraction process of the rotating push rod after the cigarette pushing ends, compared with the existing rotating structure fixed to the center, the end of the rotating abutting part of the present application retracts faster, that is, the length of the rotating push rod in the cigarette pushing direction during rotation and retraction is reduced; in summary, compared with the original design, since the rotating abutting part of the present application retracts faster, the length of the rotating abutting part can be extended to ensure sufficient contact between the end of the rotating abutting part and the end cigarette packet in the cigarette packet being pushed, effectively preventing the end cigarette packet from tipping over due to too small contact surface during the cigarette pushing process and ensuring the smooth progress of the cigarette pushing process.

[0007] Further, the path of the rotation center of the second rotating rod is an arc-shaped first sliding groove. The first sliding groove is arc-shaped, making the movement of the second rotating rod have good continuity.

[0008] Further, the first sliding groove is arranged on the fixed push rod, and the first sliding groove is a section of involute. The involute structure meets the requirement that the ends of the first rotating rod and the second rotating rod gradually decrease when the rotating push rod rotates and retracts after the cigarette pushing ends.

[0009] Further, one end of the fixed push rod is a long strip-shaped fixed abutting part, and the other end is fixed on the base. One end of the rotating push rod is rotatably fixed on the base. The position of the fixed push rod is fixed relative to the entire cigarette pushing structure; after the cigarette pushing ends, it will retract backward together with the entire cigarette pushing structure to make room for a new cigarette packet to move to the position to be pushed.

[0010] Further, the first sliding groove is a thin-walled structure, and the two side walls of the first sliding groove are connected to the fixed abutting part and form a π shape, and a clearance groove is formed between the fixed push rod and the rotating push rod. The thin-walled first sliding groove reduces the weight of the entire cigarette pushing structure as much as possible while meeting the strength requirements of the first sliding groove, reduces the power requirement and ensures the movement smoothness; the clearance groove provides enough space for the movement of the rotating push rod.

[0011] Furthermore, the second rotating rod is Z-shaped. One end face of the second rotating rod is strip-shaped, arranged side by side with the fixed push rod and serves as the rotating abutting part; the other end face is U-shaped, fixed in the first chute through the first connecting shaft and serves as the connecting part. The rotating abutting part of the second rotating rod is parallel to the fixed push rod and functions to push the cigarette. The Z-shaped second rotating rod enables the connecting part to be arranged relatively closer to the inside than the rotating abutting part and not protrude from the cigarette-pushing plane, serving as the connection part of the entire second rotating rod. The rotation center of the second rotating rod is located at the end of the connecting part.

[0012] Furthermore, the first rotating rod is provided with a protruding clamping shaft that extends towards the second rotating rod. The first rotating rod is movably fixed on the second rotating rod in the length direction of the rotating abutting part. The clamping shaft is used to fix the first rotating rod. Since the retraction speeds of the ends of the first rotating rod and the second rotating rod are different, the first rotating rod and the second rotating rod need to be provided with a movable connection method so that the second rotating rod can move along the length direction of the rotating abutting part.

[0013] Furthermore, a transition piece is provided between the first rotating rod and the second rotating rod. The transition piece is in the shape of a boss and a connection hole is provided at the large end. The transition piece is fixed on the second rotating rod through the connection hole; a second chute is provided at the small end to accommodate the clamping shaft. By providing the transition piece, the second rotating rod can be made as thin as possible, achieving a lightweight effect. The first rotating rod and the second rotating rod are connected through the transition piece, and the fixing effect is good; the transition piece is screwed on the second rotating rod, and the second chute is also provided on the transition piece to movably fix the first rotating rod.

[0014] Furthermore, the second chute is arranged along the length direction parallel to the rotating abutting part and is a long strip-shaped counterbore, and the small hole end of the counterbore is arranged close to the second rotating rod. This facilitates connection.

[0015] Furthermore, the clamping shaft is movably fixed in the second chute through a bearing. The bearing connection reduces the jamming during relative sliding.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] There are a fixed push rod and a rotating push rod arranged side by side. The rotating push rod is rotatable and is respectively provided with a first rotating rod and a second rotating rod. Since during the process of ending the pushing of the cigarette packet and the rotating push rod retracting, the distance between the two ends located on the first rotating rod and the second rotating rod gradually decreases, it can be known that the rotation center of the second rotating rod is independently set and the center position is not fixed relative to the entire cigarette pushing structure. It can also be deduced that the second rotating rod retracts faster in the cigarette pushing direction relative to the first rotating rod fixed to the center. Since the rotating abutting part is arranged on the second rotating rod, it can be known that during the retracting process of the rotating push rod after the cigarette pushing ends, compared with the existing rotating structure fixed to the center, the end of the rotating abutting part of the present application retracts faster, that is, the length of the rotating push rod in the cigarette pushing direction during rotation and retraction is reduced. In summary, compared with the original design, due to the faster retraction of the rotating abutting part, the length of the rotating abutting part can be extended to ensure sufficient contact between the end of the rotating abutting part and the end cigarette packet in the pushed cigarette packet, effectively preventing the end cigarette packet from tipping over due to too small a contact surface during the cigarette pushing process and ensuring the smooth progress of the cigarette pushing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings forming a part of this application are used to provide a further understanding of the invention. The schematic embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation to the invention. In the drawings:

[0019] Figure 1 A schematic diagram showing the cigarette pushing structure of the cigarette packaging machine of the present invention in the first position.

[0020] Figure 2 Shows Figure 1 A schematic diagram of the push rod structure of

[0021] Figure 3 Shows Figure 1 A partial exploded view of

[0022] Figure 4 Shows Figure 1 A schematic diagram of the second rotating rod in

[0023] Figure 5 Shows Figure 1 A schematic diagram of the first embodiment of the fixed push rod in

[0024] Among them, the above-mentioned accompanying drawings include the following reference numerals:

[0025] 11 First chute; 12 Fixed abutting part;

[0026] 21 First rotating rod; 211 End; 212 Clamping shaft; 22 Second rotating rod; 221 Rotating abutting part; 222 Connecting part;

[0027] 30 Base; 40 Clearance groove; 50 First connecting shaft;

[0028] 60 Transition piece; 61 Connecting hole; 62 Second chute;

[0029] 70 Bearing. Specific embodiments

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0031] In order to enable those skilled in the art to better understand the solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of this application.

[0032] As Figures 1 to 4 , in this application, the entire component can be made of aluminum alloy or magnesium aluminum alloy. The fixed push rod includes a first chute 11 and a fixed abutting portion 12. The rotating push rod includes a first rotating rod 21, a second rotating rod 22, and a transition piece 60. The rotating push rod is rotatably fixed on the base 30, and the connection position between the two is the end of the first rotating rod 21; the first rotating rod 21 is provided with a terminal 211 and a clamping shaft 212, which is fixed on the miscellaneous transition piece 60 through the clamping shaft 212, and then fixed on the second rotating rod 22 through the transition piece 60; the second rotating rod 22 is provided with a rotating abutting portion 221 and a connecting portion 222 that abuts against the cigarette pack, and the second rotating rod 22 is fixed in the first chute 11 by passing through a first connecting shaft 50 at the connecting portion 222, so that during the retraction process of the rotating push rod after pushing the cigarette pack, the retraction speed of the end of the second rotating rod 22 is faster than that of the first rotating rod 21, and more space can be vacated as soon as possible for the subsequent advancement of the cigarette pack; the transition piece 60 is in the shape of a boss and is provided with a connecting hole 61 and a second chute 62. The transition piece 60 is located between the first rotating rod 21 and the second rotating rod 22 and connects the two together. Since the transition piece 60 is provided with a second chute 62, after the first rotating rod 21 is clamped into the second chute 62 through the clamping shaft 212, the first rotating rod 21 can slide relative to the second rotating rod 22 to meet the requirement that the end of the second rotating rod 22 retracts faster.

[0033] As Figure 1 , Figure 2 , Figure 1 is a schematic structural diagram when the rotating push rod and the fixed push rod are arranged in parallel, Figure 2 is a schematic diagram after the rotating push rod rotates relative to the fixed push rod. Figure 5 Shows an embodiment of this application, showing one set of specific data therein.

[0034] Specifically, in one embodiment, the current width of a single pack of cigarettes is 66 mm, the width of the fixed push rod 10 is 104 mm, and the existing width of the rotating abutting portion 221 is 156 mm; while in the old structure, the width of the rotating abutting portion 221 is 143 mm. It can be seen that in the existing structure compared with the original structure, the cigarette pushing width of the rotating abutting portion 221 is increased, and the contact width between the rotating abutting portion 221 and the cigarette pack at the end is increased (by 13 mm), effectively preventing the cigarette pack at the end from tipping over during the cigarette pushing process and ensuring the smooth progress of the cigarette pushing process.

[0035] When pushing cigarettes, it is set that the moving direction of the cigarette pack being pushed into the "cigarette to be pushed position" (the position where the cigarette pushing mechanism pushes the cigarette pack) is horizontal, and in this direction, the cigarette pushing speed of the machine remains consistent; it is set that the moving direction of the cigarette pack being pushed by the cigarette pushing mechanism is vertical, and the two directions are perpendicular to each other. During the process of gradually pushing the cigarette pack horizontally into the "cigarette to be pushed position", the cigarette pushing mechanism moving longitudinally moves towards the cigarette pack and pushes the first group of cigarette packs forward so that the packaging mechanism can package this group of cigarette packs; at this time, the cigarette pushing mechanism needs to retract to avoid the cigarette pack newly entering the "cigarette to be pushed position". Since the rotating abutting portion 221 on the second rotating rod 22 is closer to the cigarette pack newly entering the "cigarette to be pushed position", the rotating abutting portion 221 will rotate to avoid the cigarette pack newly entering the "cigarette to be pushed position"; by setting the rotation center of the rotating abutting portion 221 to move on an involute curve, compared with the original structure, the length of the rotating abutting portion 221 in the cigarette pushing direction when rotating and retracting is reduced; that is, it is equivalent to appropriately increasing the length of the rotating abutting portion 221 in the cigarette pushing direction to ensure sufficient contact width between the rotating abutting portion 221 and the cigarette pack at the end, ensure the stability of the cigarette pack at the end during the cigarette pushing process by the cigarette pushing mechanism, reduce the probability of the cigarette pack at the end tipping over, reduce the number of shutdowns, and improve the efficiency of cigarette pushing and packaging. In addition, after the rotating abutting portion 221 leaves the cigarette to be pushed position, it will rotate again according to the set position to be parallel to the fixed abutting portion 12, and then the rotating abutting portion 221 and the fixed abutting portion 12 will move towards the cigarette pack direction to perform the next cigarette pushing action.

[0036] The rotation of the rotating abutting portion 221 can be driven by a cam structure.

[0037] A cigarette pushing structure of a cigarette packaging machine includes a fixed push rod and a rotating push rod arranged side by side. The rotating push rod is provided with a rotating abutting portion 221 for pushing the cigarette pack. The first rotating rod 21 and the second rotating rod 22 with different rotation centers are arranged on the rotating push rod. The rotation center of the first rotating rod 21 is fixedly arranged relative to the entire cigarette pushing structure, and the rotating abutting portion 221 is located on the second rotating rod 22; the positions of the first rotating rod 21 and the second rotating rod 22 close to or abutting the edge cigarette pack are the ends 211. During the process of ending the pushing of the cigarette pack and the rotating push rod retracting, the distance between the two ends 211 gradually decreases.

[0038] The present invention adopting the above technical solution is provided with a fixed push rod and a rotating push rod arranged side by side. The rotating push rod is rotatable and is respectively provided with a first rotating rod 21 and a second rotating rod 22. Since during the process of ending the pushing of the cigarette packet and the rotating push rod retracting, the distance between the two ends 211 located on the first rotating rod 21 and the second rotating rod 22 gradually decreases, it can be known that the rotation center of the second rotating rod 22 is independently arranged and the center position is not fixed relative to the entire cigarette pushing structure. It can also be deduced that the second rotating rod 22 retracts faster in the cigarette pushing direction relative to the first rotating rod 21 with a fixed center; since the rotating abutting portion 221 is arranged on the second rotating rod 22, it can be known that during the retracting process of the rotating push rod after the cigarette pushing ends, relative to the existing rotating structure with a fixed center, the end 211 of the rotating abutting portion 221 of the present application retracts faster, that is, the length of the rotating push rod in the cigarette pushing direction during rotation and retraction is reduced; in summary, compared with the original design, since the rotating abutting portion 221 retracts faster, the length of the rotating abutting portion 221 can be extended to ensure sufficient contact between the end 211 of the rotating abutting portion 221 and the end cigarette packet in the cigarette packet being pushed, effectively preventing the end cigarette packet from tipping over due to too small a contact surface during the cigarette pushing process and ensuring the smooth progress of the cigarette pushing process.

[0039] Further, the path of the rotation center of the second rotating rod 22 is an arc-shaped first sliding groove 11. The first sliding groove 11 is arc-shaped, making the movement of the second rotating rod 22 have good coherence.

[0040] Further, the first sliding groove 11 is arranged on the fixed push rod, and the first sliding groove 11 is a section of involute. The involute structure meets the requirement that the ends 211 of the first rotating rod 21 and the second rotating rod 22 gradually decrease when the rotating push rod rotates and retracts after the cigarette pushing ends.

[0041] Further, one end of the fixed push rod is a long strip-shaped fixed abutting portion 12, and the other end is fixed on the base 30. One end of the rotating push rod is rotatably fixed on the base 30. The position of the fixed push rod is fixed relative to the entire cigarette pushing structure; after the cigarette pushing ends, it will retract backward together with the entire cigarette pushing structure to make way for a new cigarette packet to move to the position to be pushed.

[0042] Further, the first sliding groove 11 is a thin-walled structure, and the two side walls of the first sliding groove 11 are connected to the fixed abutting portion 12 and form a π shape, and a clearance groove 40 is formed between the fixed push rod and the rotating push rod. The thin-walled first sliding groove 11 reduces the weight of the entire cigarette pushing structure as much as possible while meeting the strength requirements of the first sliding groove 11, reduces the power requirement and ensures the movement stability; the clearance groove 40 provides sufficient space for the movement of the rotating push rod.

[0043] Further, the second rotating rod 22 is in a Z shape. One end face of the second rotating rod 22 is strip-shaped, arranged side by side with the fixed push rod and is a rotating abutting part 221; the other end face is U-shaped, fixed in the first sliding groove 11 through the first connecting shaft 50 and is a connecting part 222. The rotating abutting part 221 of the second rotating rod 22 is parallel to the fixed push rod and functions to push the cigarette. The Z-shaped second rotating rod 22 makes the connecting part 222 be arranged inward relative to the rotating abutting part 221 without protruding from the cigarette-pushing plane, serving as the connection part of the entire second rotating rod 22. The rotation center of the second rotating rod 22 is located at the end 211 of the connecting part 222.

[0044] Further, the first rotating rod 21 is provided with a protruding clamping shaft 212. The clamping shaft 212 extends towards the second rotating rod 22. The first rotating rod 21 is movably fixed on the second rotating rod 22 in the length direction of the rotating abutting part 221. The clamping shaft 212 is used to fix the first rotating rod 21. Since the retraction speeds of the ends 211 of the first rotating rod 21 and the second rotating rod 22 are different, the first rotating rod 21 and the second rotating rod 22 need to be provided with a movable connection method so that the second rotating rod 22 can move along the length direction of the rotating abutting part 221.

[0045] Further, a transition piece 60 is provided between the first rotating rod 21 and the second rotating rod 22. The transition piece 60 is in a convex platform shape and a connection hole 61 is provided at the large end. The transition piece 60 is fixed on the second rotating rod 22 through the connection hole 61; a second sliding groove 62 is provided at the small end to accommodate the clamping shaft 212. By providing the transition piece 60, the second rotating rod 22 can be made as thin as possible, achieving a light-weight effect. The first rotating rod 21 and the second rotating rod 22 are connected through the transition piece 60, and the fixing effect is good; the transition piece 60 is screwed on the second rotating rod 22, and the second sliding groove 62 is simultaneously provided on the transition piece 60 to movably fix the first rotating rod 21.

[0046] Further, the second sliding groove 62 is arranged along the length direction parallel to the rotating abutting part 221 and is a long strip-shaped counterbore, and the small hole end of the counterbore is arranged close to the second rotating rod 22. It is convenient for connection.

[0047] Further, the clamping shaft 212 is movably fixed in the second sliding groove 62 through a bearing 70. The connection of the bearing 70 reduces the jamming during relative sliding.

[0048] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cigarette pushing structure of a cigarette packing machine, characterized in that It includes a fixed push rod and a rotating push rod arranged side by side. The rotating push rod is provided with a rotating abutting part (221) for abutting against a cigarette packet. On the rotating push rod, a first rotating rod (21) and a second rotating rod (22) with different rotation centers are respectively provided. The rotation center of the first rotating rod (21) is fixedly arranged relative to the whole cigarette pushing structure. The rotating abutting part (221) is located on the second rotating rod (22). The positions of the first rotating rod (21) and the second rotating rod (22) close to or abutting against the edge cigarette packet are the ends (211). During the process of retracting the rotating push rod after finishing abutting against the cigarette packet, the distance between the two ends (211) gradually decreases. The path of the rotation center of the second rotating rod (22) is an arc-shaped first chute (11). The first chute (11) is arranged on the fixed push rod, and the first chute (11) is a section of an involute. The first rotating rod (21) is provided with a protruding clamping shaft (212). The clamping shaft (212) extends towards the direction of the second rotating rod (22). The first rotating rod (21) is movably fixed on the second rotating rod (22) in the length direction of the rotating abutting part (221). One end of the fixed push rod is a long strip-shaped fixed abutting part (12), and the other end is fixed on a base (30). One end of the rotating push rod is rotatably fixed on the base (30). The first chute (11) is a thin-wall structure, and the two side walls of the first chute (11) are connected to the fixed abutting part (12) and form a π shape, and a clearance groove (40) is formed between the fixed push rod and the rotating push rod. The second rotating rod (22) is in a Z shape. One end face of the second rotating rod (22) is long strip-shaped, arranged side by side with the fixed push rod and is the rotating abutting part (221). The other end face is U-shaped, fixed in the first chute (11) through a first connecting shaft (50) and is a connecting part (222). A transition piece (60) is arranged between the first rotating rod (21) and the second rotating rod (22). The transition piece (60) is in a boss shape and a connecting hole (61) is opened at the large end. The transition piece (60) is fixed on the second rotating rod (22) through the connecting hole (61). The small end is provided with a second chute (62) to accommodate the clamping shaft (212).

2. The pushing structure of the cigarette packing machine according to claim 1, characterized in that, The second chute (62) is arranged along the length direction parallel to the rotating abutting part (221) and is a long strip-shaped counterbore. The small hole end of the counterbore is close to the second rotating rod (22).

3. The pushing structure of the cigarette packing machine according to claim 1, wherein The clamping shaft (212) is movably fixed in the second chute (62) through a bearing (70).

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