A cigarette packer pusher device with overload protection

Abstract

The utility model discloses a kind of pusher of tobacco packer with overload protection, it is related to tobacco packaging equipment technical field.The device includes rack, rack is set on packer, and the drive mechanism on packer drives rack axial reciprocating motion to push tobacco pack;Rack and transmission rod are slidably connected through adjusting hole, rack position can be fixed by screw, adapt to different size tobacco pack;Push rod on rack passes through containing cavity, and limit mechanism makes push rod temporarily move with rack by the cooperation of marble and elastic groove, push rod slides to avoid damage when reaction force is over threshold value;Push rod and the disconnecting protection mechanism on rack send signal to make equipment shutdown when push rod moves.The device can be flexibly adjusted to adapt to different tobacco pack, with double protection mechanism, can reduce failure loss, improve production efficiency and continuity.

Description

Technical Field

[0001] This utility model relates to the field of tobacco packaging equipment technology, and more specifically, it relates to a pushing device for a tobacco packaging machine with overload protection. Background Technology

[0002] In the tobacco packaging industry, uniquely shaped cigarettes occupy a certain market share due to their distinctive shapes and diverse flavors. Their packaging process is more complex than that of regular cigarettes, especially the crucial step of pushing the cigarette pack (after the transparent paper covering) into the carton containing moisturizing paper, ribbons, and other accessories. This requires extremely high precision and stability from the pushing equipment. Currently, the industry generally uses mechanical pushing mechanisms to complete the cigarette pack filling. These mechanisms typically consist of drive components, transmission structures, and pushing components. They precisely deliver the cigarette pack into the carton along a preset trajectory to ensure both the airtightness and aesthetic appeal of the packaging.

[0003] Existing cigarette pack feeding equipment has significant limitations in adapting to cigarette packs of different sizes. Due to the diverse specifications of irregularly shaped cigarettes, with variations in pack length and width, the frame and transmission components of traditional feeding mechanisms are mostly fixedly connected, making it difficult to flexibly adjust the feeding distance and position. If it is necessary to change the cigarette pack specifications, a large-scale disassembly and adjustment of the equipment is required, which is not only time-consuming and labor-intensive, but also prone to affecting feeding accuracy due to assembly errors, resulting in low production efficiency and making it difficult to meet the production needs of multiple varieties and small batches.

[0004] Furthermore, existing equipment lacks effective overload protection and fault response mechanisms. During the cigarette pack feeding process, if the moisturizing paper inside the carton is not lifted in time, the carton is not pushed in place, or foreign objects cause blockage, the resistance between the cigarette pack and the carton will suddenly increase. At this time, the traditional feeding mechanism will continue to apply pushing force, which can easily cause deformation of the cigarette pack, damage to the transparent paper, and even equipment failures such as bending of transmission components and motor overload. More seriously, the equipment often cannot automatically stop after a failure occurs, and the continued feeding of subsequent cigarette packs will cause a chain of blockages, expand the scope of the failure, and increase maintenance costs and downtime.

[0005] Therefore, in order to solve the above-mentioned technical problems, this utility model proposes a cigarette packaging machine pusher with overload protection. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a pushing device for a cigarette packaging machine with overload protection.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cigarette packaging machine pusher with overload protection, comprising:

[0008] A frame, on which a connecting mechanism is provided, allows the frame to be installed inside a cigarette packaging machine;

[0009] The push rod has a receiving cavity on the frame through which it passes, and the push rod is slidably disposed in the frame through the receiving cavity;

[0010] A limiting mechanism is provided between the frame and the push rod. The limiting mechanism can increase the friction force of the push rod sliding within the frame, so that the push rod can move with the frame.

[0011] A disconnection protection mechanism is disposed between the frame and the push rod. The disconnection protection mechanism is connected to the controller. When the push rod overcomes the frictional force given by the limiting mechanism and moves based on the frame, the disconnection protection mechanism causes the controller to stop operating the equipment.

[0012] Furthermore, the frame is provided with adjustment holes and corresponding cavities. The connecting mechanism is a screw installed in the cavity. The screw is threaded onto the frame, and one end of the screw extends into the adjustment hole.

[0013] Furthermore, the limiting mechanism includes a fastening piece and a ball. The fastening piece is disposed on the frame, and the frame has a bullet hole for the ball to pass through. The push rod is provided with a bullet groove. The fastening piece squeezes the ball through the bullet hole and makes the ball embedded in the bullet groove.

[0014] Furthermore, the push rod has multiple spring grooves.

[0015] Furthermore, the disconnection protection mechanism includes a limit switch and a limit plate. The limit switch is mounted on the frame, and the limit plate is slidably mounted on the push rod. The limit plate is also provided with a fixing mechanism that can fix it to the push rod. When the limit switch and the limit plate are separated, the limit switch causes the controller to stop operating the equipment.

[0016] Furthermore, the limit switch and the limit plate are in contact with each other, and the limit switch and the limit plate are separated when the limit plate no longer contacts the limit switch.

[0017] Furthermore, the limit switch and the limit piece are inductively connected, and the limit switch and the limit piece are separated when the limit piece moves away from the limit switch beyond a set threshold.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This device significantly enhances equipment adaptability through its adjustable frame structure. Utilizing the combination of adjustment holes and screws, the position of the frame on the transmission rod can be flexibly adjusted. Combined with the multiple spring grooves on the push rod, it can quickly adapt to different sized tobacco packs, allowing for specification switching without large-scale disassembly. This reduces adjustment time and improves the equipment's versatility and production efficiency, making it particularly suitable for mixed production scenarios involving multiple varieties of irregularly shaped tobacco products.

[0020] The device's dual protection mechanism effectively ensures production safety and stability. The limit mechanism allows the push rod to slide relative to the frame when encountering resistance, preventing damage to the cigarette packs and equipment components from hard collisions. The disconnection protection mechanism can quickly trigger a shutdown when the push rod shifts, preventing the fault from escalating and reducing product scrap rates and equipment maintenance costs. Furthermore, after a fault, production can be resumed simply by resetting the push rod to re-engage the ball in the slot, simplifying operation, reducing downtime for maintenance, and further improving production continuity. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the frame in this utility model;

[0025] Figure 4 This is a schematic diagram of the installation of the pushing device.

[0026] 100. Frame; 101. Adjustment hole; 102. Cavity; 103. Receiving cavity; 104. Spring hole; 200. Push rod; 201. Spring groove; 300. Limiting mechanism; 301. Fastening piece; 302. Ball; 400. Disconnection protection mechanism; 401. Limit switch; 402. Limiting piece; 500. Screw; 800. Transmission rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] like Figures 1-4As shown, this utility model provides a cigarette packaging machine pushing device with overload protection, including a frame 100, which is mounted on a cigarette packaging machine. The cigarette packaging machine is equipped with a drive mechanism, and the drive end of the drive mechanism is connected to a transmission rod 800. An adjustment hole 101 is provided on the frame 100 for the transmission rod 800 to pass through. The drive mechanism can drive the frame 100 to reciprocate in the axial direction through the transmission rod 800, thereby pushing the cigarette pack into the carton. A cavity 102 is provided on the frame 100 at the position corresponding to the adjustment hole 101. A screw 500 is provided in the cavity 102. The screw 500 is threadedly connected to the frame 100, and one end of the screw 500 extends into the adjustment hole 101. The frame 100 is slidably connected to the transmission rod 800 through the adjustment hole 101. When the frame 100 is moved to a suitable position, the screw 500 is tightened so that one end of the screw 500 abuts against the surface of the transmission rod 800, thereby fixing the frame 100 to the transmission rod 800. This can accommodate cigarette packs of different sizes and also adjust the distance that the frame 100 pushes the cigarette pack.

[0033] To facilitate pushing the cigarette pack, a push rod 200 that abuts against the cigarette pack is also provided on the frame 100. The frame 100 has a receiving cavity 103 through which the push rod 200 passes. A limiting mechanism 300 is provided on the frame 100. The limiting mechanism 300 can create resistance between the frame 100 and the push rod 200, preventing the push rod 200 from sliding on the frame 100 through the receiving cavity 103. When the reaction force on the push rod 200 does not reach a certain threshold, the push rod 200 will move with the frame 100 under the restriction of the limiting mechanism 300. Therefore, the push rod 200 can push the cigarette pack into the carton under the drive of the frame 100.

[0034] When the moisturizing paper inside the carton is not opened in time by the relevant equipment, or when the carton is not pushed into place, the resistance to the cigarette pack entering the carton will increase. At this time, the push rod 200 will be subjected to a greater reaction force from the cigarette pack, thus overcoming the resistance given by the limiting mechanism 300. This allows the push rod 200 to slide on the frame 100 through the receiving cavity 103 and move away from the cigarette pack. At this time, the push rod 200 no longer forcibly pushes the cigarette pack, thereby avoiding damage to the product and also avoiding damage to the equipment parts.

[0035] The limiting mechanism 300 includes a fastening piece 301 and a ball 302 disposed on the frame 100. The fastening piece 301 is fixed to the frame 100 by bolts. The frame 100 has a bullet hole 104 for the ball 302 to pass through. The fastening piece 301 abuts against the ball 302 and presses the ball 302 into the bullet hole 104. The push rod 200 has a groove 201 for accommodating the ball 302. The limiting piece 402 is elastic and can be a tough steel sheet that can compress the ball 302, so that part of the ball 302 passes through the bullet hole 104 and is embedded in the bullet hole 104. Part of the ball 302 is stuck in the bullet hole 104, and the other part is embedded in the groove 201, which can form a temporary limit between the frame 100 and the push rod 200.

[0036] If the reaction force on the push rod 200 is greater than the frictional force exerted on the push rod 200 by the ball 302, the groove 201 will squeeze out the embedded ball 302 and cause the ball 302 to press against the fastening piece 301. At this time, the push rod 200 can slide in the receiving cavity 103, thereby allowing the push rod 200 to move based on the frame 100, achieving the purpose of protecting the equipment and products.

[0037] It is worth noting that multiple spring grooves 201 can be provided on the push rod 200 of different sizes of cigarette packs in order to accommodate different sizes.

[0038] However, when the equipment malfunctions, although the push rod 200 can move under the reaction force to avoid damaging the product and the equipment, the equipment is still operating normally at this time. When subsequent cigarette packs are delivered, they will interfere with the original cigarette packs that were stuck, which may also cause risks.

[0039] Based on the above, a disconnection protection mechanism 400 is provided on the push rod 200 and the frame 100. When the push rod 200 moves relative to the frame 100, the disconnection protection mechanism 400 can send a signal to stop the equipment and prompt the staff to maintain the equipment.

[0040] like Figure 2As shown, the disconnection protection mechanism 400 includes a limit switch 401 and a limit plate 402. The limit switch 401 is mounted on the frame 100, and the limit plate 402 is slidably mounted on the push rod 200. The limit plate 402 and the push rod 200 can be connected by a bolt structure. Typically, the limit plate 402 is located at the end of the push rod 200 that passes through the receiving cavity 103. The limit switch 401 is connected to the controller. In one scenario, the limit switch 401 abuts against the limit plate 402. When the limit switch 401 and the limit plate 402 are in contact, the equipment can operate normally. However, when the push rod 200 slides within the receiving cavity 103, the positional relationship between the frame 100 and the push rod 200 changes. At this time, the limit plate 402 moves along with the push rod 200, thereby separating the limit switch 401 and the limit plate 402. In this case, the limit switch 401 sends a command to the controller to stop the equipment.

[0041] In another case, an inductive proximity switch is used between the limit switch 401 and the limit piece 402. If a distance threshold is set between the limit piece 402 and the limit switch 401, when the limit piece 402 moves away from the limit switch 401 under the action of the push rod 200 and reaches the set threshold, the limit switch 401 sends a command to the controller to stop the equipment.

[0042] In summary, during the packaging of irregularly shaped cigarettes, when the cigarette box with transparent paper is pushed into the carton containing moisturizing paper and ribbons for filling, if a blockage occurs in the cigarette box, the push rod 200 experiences increased rebound force, causing it to disengage from the limiting mechanism 300 and detach from the frame 100, ceasing to push the cigarette box. Simultaneously, the push rod 200 slides backward, and the tail limit switch 401 fails to detect the limit piece 402, sending a signal to stop the equipment. This protects the product and related parts, avoiding maintenance difficulties caused by the lifting mechanism. Furthermore, in the event of a fault displacement, the disconnection protection mechanism 400 is highly sensitive and can respond quickly.

[0043] Furthermore, in the event of a malfunction, simply adjusting the relative position of the push rod 200 and the frame 100 will reposition the ball 302 within the ball hole 104 and the ball groove 201. This simple operation improves inspection and maintenance efficiency, thereby increasing production efficiency.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A pushing device for a cigarette packaging machine with overload protection, characterized in that: include: A frame (100) is provided with a connecting mechanism, which can set the frame (100) inside the cigarette packaging machine; The push rod (200) is provided with a receiving cavity (103) on the frame (100) for the push rod (200) to pass through. The push rod (200) is slidably disposed in the frame (100) through the receiving cavity (103). A limiting mechanism (300) is provided between the frame (100) and the push rod (200). The limiting mechanism (300) can increase the friction of the push rod (200) sliding in the frame (100), so that the push rod (200) can move with the frame (100). A disconnection protection mechanism (400) is disposed between the frame (100) and the push rod (200). The disconnection protection mechanism (400) is connected to the controller. When the push rod (200) overcomes the frictional force given by the limiting mechanism (300) and moves based on the frame (100), the disconnection protection mechanism (400) causes the controller to stop operating the equipment.

2. The overload protection pushing device for a cigarette packaging machine according to claim 1, characterized in that: The frame (100) is provided with an adjustment hole (101) and a cavity (102) corresponding to the adjustment hole (101). The connecting mechanism is a screw (500) set in the cavity (102). The screw (500) is threadedly connected to the frame (100), and one end of the screw (500) extends into the adjustment hole (101).

3. The overload protection pushing device for a cigarette packaging machine according to claim 1, characterized in that: The limiting mechanism (300) includes a fastening piece (301) and a ball (302). The fastening piece (301) is disposed on the frame (100). The frame (100) has a bullet hole (104) for the ball (302) to pass through. The push rod (200) is provided with a bullet groove (201). The fastening piece (301) squeezes the ball (302) through the bullet hole (104) and makes the ball (302) embedded in the bullet groove (201).

4. The overload protection pushing device for a cigarette packaging machine according to claim 3, characterized in that: The push rod (200) has multiple spring grooves (201).

5. The overload protection pushing device for a cigarette packaging machine according to claim 1, characterized in that: The disconnection protection mechanism (400) includes a limit switch (401) and a limit plate (402). The limit switch (401) is mounted on the frame (100), and the limit plate (402) is slidably mounted on the push rod (200). The limit plate (402) is provided with a fixing mechanism that can fix it to the push rod (200). When the limit switch (401) and the limit plate (402) are separated, the limit switch (401) causes the controller to stop operating the equipment.

6. The overload protection pushing device for a cigarette packaging machine according to claim 5, characterized in that: The limit switch (401) and the limit piece (402) are in contact with each other. When the limit piece (402) no longer contacts the limit switch (401), it means that the limit switch (401) and the limit piece (402) are separated.

7. A cigarette packaging machine pusher with overload protection according to claim 5, characterized in that: The limit switch (401) and the limit piece (402) are inductively connected. When the limit piece (402) moves away from the limit switch (401) beyond a set threshold, it indicates that the limit switch (401) and the limit piece (402) are separated.

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