Tobacco shred high-precision boxing metering system and boxing method

Abstract

The system comprises a boxing station A and a boxing station B. A reciprocating material distributing machine is arranged between the boxing station A and the boxing station B. The boxing station A and the boxing station B are each provided with a compaction mechanism and a weighing module. The boxing station A and the boxing station B further comprise a tobacco shred fine feeding mechanism, a tobacco shred metering mechanism, a tobacco shred metering mechanism, a tobacco shred metering mechanism and a tobacco shred metering mechanism. A feeding port of the fine tobacco shred feeding mechanism is located on the spreading face of the reciprocating spreader, a feeding unit is arranged at one end of a discharging port and located in a hopper of the compaction mechanism, an outlet of the feeding unit is configured to be of an openable structure, and the fine tobacco shred feeding mechanism feeds materials into the feeding unit in a negative pressure mode. According to the tobacco shred quantitative boxing device, the boxing density uniformity and the boxing precision are improved while the integrity of the tobacco shred quantitative boxing process is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tobacco packing, in particular to a high-precision tobacco packing and metering system and a packing method. BACKGROUND

[0002] Achieving high-capacity packing, high-precision metering and uniform feeding of tobacco is a key technical link in the packing process of tobacco processing, which includes specific links such as automatic cover taking and covering of tobacco boxes, high-precision feeding, uniform material distribution, and flexible compaction of tobacco in the box. How to achieve these four specific links in one system while improving the packing accuracy, automation level, realizability and reliability of the system is one of the important problems that tobacco processing related units need to solve. Although some related units have proposed methods for automatic quantitative packing of tobacco, most of them have defects such as low packing accuracy, poor uniformity of tobacco in the box, and low automation level.

[0003] CN109080864A discloses a method for quantitative packing of tobacco and a production line used, but lacks the links of tobacco box cover taking, uniform material distribution, and flexible compaction of tobacco in the box.

[0004] A tobacco packing system and packing method are disclosed in CN119527668A, which can achieve functions such as uniform material distribution and cover taking, but when packing tobacco quantitatively, it uses an ordinary reciprocating belt feeder to directly distribute material into the box, which makes it difficult to control the uniformity of the material and to achieve the required accuracy of feeding. Under the condition of not changing the existing mature and user-accepted feeding and weighing mode (i.e., the electronic ground scale is used to determine whether the feeder continues to distribute material, and when the weighing reaches the specified weight accuracy range, the feeder stops distributing material), this process has the following disadvantages:

[0005] On the one hand, when the tobacco in the box only needs a small amount of tobacco to reach the required value, it is difficult for the ordinary reciprocating belt feeder to achieve the distribution of a small amount of material, and it is also difficult for the reciprocating belt feeder to achieve the addition of only the required amount of material if it continues to be used.

[0006] On the other hand, the conventional distribution mode does not have a uniform material distribution mechanism, and the tobacco packed into the box falls randomly by gravity, resulting in low uniformity of the material packed into the box, which leads to a large deviation in the density of the compacted material in the box, and is not conducive to the storage and aging of the material.

[0007] Therefore, there is a need for a high-precision tobacco packing system. SUMMARY

[0008] To solve the above problems, the present application provides a high-precision tobacco packing and metering system and a packing method, which improves the uniformity of packing density and packing accuracy while ensuring the integrity of the quantitative packing process of tobacco.

[0009] In particular, the present application is implemented as follows:

[0010] A high-precision tobacco packing and metering system comprises a packing station A and a packing station B, a reciprocating distributor is arranged between the packing station A and the packing station B, the packing station A and the packing station B are both provided with a compaction mechanism and a weighing module, and the packing station A and the packing station B further comprise:

[0011] A tobacco fine feeding mechanism is arranged between a tobacco box and the compaction mechanism and is used for feeding the tobacco box; a feeding inlet of the tobacco fine feeding mechanism is arranged on a paving surface of the reciprocating distributor, a feeding outlet is provided with a feeding unit, the feeding unit is arranged in a hopper of the compaction mechanism, an outlet of the feeding unit is configured as an openable and closable structure, and the tobacco fine feeding mechanism sends the material into the feeding unit in a negative pressure mode;

[0012] When the reciprocating distributor feeds the tobacco box to a set weight of the weighing module, the reciprocating distributor stops, the feeding unit is opened, and the tobacco box is fed until the weight of the tobacco in the tobacco box reaches a specified weight precision range; the set weight is a negative deviation;

[0013] A material limiting rake roller device is arranged at both ends of the reciprocating distributor, and the material limiting rake roller device is used for limiting the feeding amount of the reciprocating distributor;

[0014] A material distributing mechanism is arranged in the hopper of the compaction mechanism, and the material distributing mechanism is configured as a swingable structure and is used for making the upstream tobacco evenly fall into the tobacco box.

[0015] Further, the tobacco fine feeding mechanism is provided with two groups, i.e., a first feeding mechanism and a second feeding mechanism, and the first feeding mechanism and the second feeding mechanism both comprise:

[0016] A wind pipe, a feeding inlet is arranged on a paving surface of the reciprocating distributor, and a feeding outlet is connected with the feeding unit at one end; the wind pipe is used for sucking the material into the feeding unit in a negative pressure mode;

[0017] A tobacco suction power source is connected with the wind pipe and is connected with the feeding unit through a separator;

[0018] When the reciprocating distributor feeds the tobacco box to the set weight of the weighing module, the reciprocating distributor stops, the feeding unit of the first feeding mechanism is opened, and the tobacco box is fed; if the weight of the tobacco in the tobacco box reaches the specified weight precision range, the first feeding mechanism stops feeding the tobacco box, otherwise, the feeding unit of the first feeding mechanism is closed, the feeding unit of the second feeding mechanism is opened, and the tobacco box is fed, and the cycle is repeated until the weight of the tobacco in the tobacco box reaches the specified weight precision range.

[0019] Further, the feeding unit comprises:

[0020] A storage box is arranged in the hopper of the compaction mechanism and is connected with the suction power source. A push-pull bottom plate is arranged at the bottom of the storage box. The push-pull bottom plate is used for opening and closing the storage box.

[0021] Further, the material limiting rake roller device is configured to be height-adjustable to adjust the paving thickness of the reciprocating material distributing machine.

[0022] Further, the boxing station A and the boxing station B are provided with a lifting conveyor for conveying the tobacco boxes. The boxing station A and the boxing station B are both provided with a cover taking and capping machine.

[0023] Further, the cover taking and capping machine comprises:

[0024] A cover clamping mechanism is arranged for clamping the box cover.

[0025] A cover moving mechanism is arranged with the cover clamping mechanism. The cover moving mechanism is used for driving the cover clamping mechanism to move in the horizontal direction.

[0026] Further, the material distributing mechanism comprises:

[0027] A material distributing plate is arranged in the hopper of the compaction mechanism. In the initial state, the material distributing plate is in the vertical state.

[0028] A material distributing plate driving source is connected with the material distributing plate and is used for driving the material distributing plate to swing.

[0029] Further, a plurality of gaps are arranged at the lower part of the material distributing plate to form a ventilation structure.

[0030] Further, the pressure head of the compaction mechanism is in the form of a grid structure.

[0031] The application further provides a high-precision tobacco boxing method, which comprises:

[0032] Step 1: The empty tobacco box is conveyed to the lifting conveyor of the compaction station of the boxing station A and the boxing station B via the chain conveyor and is positioned.

[0033] Step 2: The cover taking and capping machine takes out the cover of the tobacco box and moves to the capping station. The weighing module weighs the empty tobacco box and records.

[0034] Step 3: The reciprocating material distributing machine starts to distribute the tobacco from the upstream equipment to the boxing station A. The material distributing mechanism of the side starts to swing to perform the material distributing action. Meanwhile,

[0035] The tobacco precision feeding mechanism sucks the tobacco into the feeding unit through negative pressure.

[0036] Step 4: When the reciprocating distributor feeds the tobacco box to the weighing module to the set weight value, the reciprocating distributor stops the distribution on this side, reverses to feed the box station B, starts the box filling operation of the box station B, and the compaction mechanism of the box station A compacts the tobacco in the tobacco box; after compaction, the feeding unit is opened for secondary fine feeding until the weight of the tobacco in the tobacco box reaches the specified weight accuracy range;

[0037] The set weight value is a negative deviation;

[0038] Step 5: The real tobacco box that has been compacted and weighed to meet the accuracy requirements is conveyed to the capping position by the chain conveyor, and the cap taking capping machine is used for capping the tobacco box. After capping is completed, the cap taking capping machine returns to the initial position; the real tobacco box that has completed capping is handed over to the downstream conveying equipment;

[0039] The box station B repeats steps 4 and 5 to complete the capping operation of the box station A and the box station B.

[0040] Compared with the prior art, the beneficial effects of the present application are:

[0041] (1) The tobacco high-precision capping and metering system and the capping method provided by the present application control the material within the set negative deviation during initial feeding, and supplement the quantitative material by using the tobacco fine feeding mechanism after the material is added to the preset value, so as to ensure that the weight of the tobacco in the box is within the allowable deviation range, and fine production is realized, thereby effectively improving the capping accuracy.

[0042] (2) The adjustable material limiting rake roller device is designed at both ends of the reciprocating distributor, so that the distribution of the material is effectively controlled, and excessive material is no longer "out of control" and falls into the tobacco box, so as to limit the distributed material within the set negative deviation.

[0043] (3) The material uniformizing plate adopts a ventilation structure, air can pass freely from the gap when the material is uniformly distributed, the pressure difference before and after the material uniformizing plate is eliminated, and negative pressure is not formed in the hopper, so that the tobacco is only subjected to the action of gravity and mechanical flow guide, thereby avoiding the suspension or abnormal accumulation of the tobacco caused by negative pressure. Moreover, the material uniformizing plate is not affected by air resistance during swinging, the swinging track of the material uniformizing plate is more stable each time, thereby ensuring the uniformity of the distribution of the material and improving the quality of the subsequent compaction process. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 It is a structure schematic view of the tobacco high-precision capping and metering system in embodiment 1;

[0045] Figure 2 It is a top view of the tobacco high-precision capping and metering system in embodiment 1;

[0046] Figure 3 It is a front view of the reciprocating distributor in embodiment 1;

[0047] Figure 4 This is a side view of the reciprocating fabric placing machine in Example 1;

[0048] Figure 5 This is a side view of the capping and capping machine in Example 1;

[0049] Figure 6 This is a front view of the capping and capping machine in Example 1;

[0050] Figure 7 This is a schematic diagram of the compaction mechanism in Example 1;

[0051] Figure 8 This is a top view of the pressure head in Example 1;

[0052] Figure 9 This is a schematic diagram of the material distribution mechanism in Example 1;

[0053] Figure 10 This is a schematic diagram of the tobacco refining mechanism in Example 1.

[0054] Figure label:

[0055] 1-Chain conveyor; 2-Electronic floor scale; 3-Lifting conveyor; 4-Lid removal and capping machine; 41-Lid clamping mechanism; 42-Lid moving mechanism; 5-Compacting mechanism; 51-Hopper; 52-Pressure head; 53-Servo electric cylinder; 54-Equalizing material distribution mechanism; 55-Equalizing material drive component; 56-Equalizing material plate; 6-Pressure bearing support body; 7-Reciprocating material distributor; 71-Limiting material rake roller device; 8-Tobacco shreds refining mechanism; 81-Air duct; 82-Negative pressure fan; 83-Storage bin; 84-Push-pull bottom plate; 9-Main frame. Detailed Implementation

[0056] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0057] In this invention, the negative deviation refers to a weight lower than the set weight of tobacco shreds in the tobacco box.

[0058] Example 1

[0059] like Figures 1-2 As shown, this embodiment provides a high-precision packing and metering system for tobacco shreds, including: a main frame 9 and packing stations A and B set on the main frame 9. A reciprocating feeding machine 7 is set between packing stations A and B. Packing stations A and B adopt the same structure. The reciprocating feeding machine 7 feeds the tobacco shreds. After the reciprocating feeding machine 7 finishes feeding packing station A, it feeds the tobacco shreds to packing station B. This cycle is repeated to realize the continuous packing of tobacco shreds.

[0060] like Figures 3-4As shown, the two ends of the reciprocating distributor 7 are provided with material limiting rake roller devices 71, the rake roller height of which is adjustable, for limiting the paving height of the reciprocating distributor 7, thereby limiting the material flow of the reciprocating distributor 7, avoiding the situation of too much material, so as to limit the material within the set negative deviation.

[0061] The packing station A and the packing station B are both provided with an electronic platform scale 2 (a weighing module), a lifting conveyor 3, a cover taking and covering machine 4, a compaction mechanism 5, a pressure bearing support body 6 and a cut tobacco fine material adding mechanism 8, wherein the electronic platform scale 2 is installed on the pressure bearing steel plate of the main body frame 9, the lifting conveyor 3 is installed above the electronic platform scale 2, and the lifting of the lifting chain conveyor 3 is realized by driving the rotation of the connecting rod mechanism through the cam.

[0062] The front and rear ends of the lifting conveyor 3 are connected with the chain conveyor 1, and the chain conveyor 1 is connected with the upstream and downstream equipment. Figures 5-6 As shown, the cover taking and covering machine 4 is provided with a cover taking position and a cover adding position, the cover taking position is the packing position, and the cover adding position is located downstream of the packing position and is connected with the downstream conveying equipment.

[0063] As shown, the cover taking and covering machine 4 includes a cover clamping mechanism 41 and a cover moving mechanism 42, the cover clamping mechanism 41 adopts a jacking clamping box cover mode, the cover moving mechanism 42 is a guide rail transverse moving mechanism, the cover clamping mechanism 41 is arranged on the cover moving mechanism 42, when the cover clamping mechanism 41 clamps the box cover, the cover moving mechanism 42 drives the cover clamping mechanism 41 and the box cover to move to the cover adding position to wait for covering the tobacco box, and after the covering is completed, it returns to the original position to take the cover of the next tobacco box. Figures 7-9 As shown, the compaction mechanism 5 includes a hopper 51, a pressure head 52, a servo cylinder 53 and a material uniformizing and distributing mechanism 54, the servo cylinder 53 is installed on the frame and is connected with the pressure head 52, the servo cylinder 22 drives the pressure head 24 to lift, thereby realizing the compaction function.

[0064] The material uniformizing mechanism 54 comprises a material uniformizing driving member 55 (a cylinder) arranged outside the hopper 51 and a material uniformizing plate 56 arranged inside the hopper 51, the material uniformizing driving member 55 being used to drive the material uniformizing plate 56 to swing at a certain angle, the falling tobacco being guided, so as to realize uniform spreading of the material. In the initial state, the material uniformizing plate 56 is in the vertical state, after the feeding is finished (i.e. after the tobacco in the tobacco box reaches the specified weight), the material uniformizing plate 56 is returned to the initial state, so as to leave the pressing space of the pressing head 52, avoiding interference between the two. The lower part of the material uniformizing plate 56 is provided with a plurality of notches, so as to form the air permeable structure, avoiding the re-pressing condition in the hopper 51.

[0065] The tobacco fine feeding mechanism 8 is arranged between the tobacco box and the compacting mechanism 5, and is provided with two groups, i.e. a first feeding mechanism and a second feeding mechanism, the first feeding mechanism and the second feeding mechanism being the same in structure, and each comprising a wind pipe 81, a negative pressure fan 82, a separator and a feeding unit, the feeding inlet of the wind pipe 81 being located on the paving surface of the reciprocating distributing machine 7, one end of the feeding outlet being connected with the feeding unit 83, the feeding unit 83 being arranged in the hopper 51 and comprising a storage box 83 and a push-pull bottom plate 84, the material is separated from the gas after being sucked into the separator from the reciprocating distributing machine 7 by the negative pressure, and then falls into the storage box 83 for storage. The storage box 83 is provided with different capacities according to the material bulk density, such as 0.2 kg, 0.4 kg, 0.6 kg, 0.8 kg, 1 kg and the like, different specifications of the to-be-fed modes can be stored, or the storage amount can be controlled by detecting the material height, i.e. a material height sensor is arranged in the storage box 83, and when the material accumulation height reaches the set value, the material suction is stopped, so as to control the storage amount. When the tobacco fine feeding mechanism 8 needs to be replenished, the push-pull bottom plate 84 is opened, and the material in the storage box 83 falls into the tobacco box.

[0066] Specifically, the tobacco boxing process comprises:

[0067] Step 1: the empty tobacco box is conveyed to the lifting type conveyor 3 of the compacting station of the boxing station A and the boxing station B by the chain conveyor 1 and is positioned.

[0068] Step 2: the cover of the cover taking and covering machine 4 is lifted, the cover of the tobacco box is clamped and taken out and is moved to the covering position, and the electronic platform scale 2 weighs the empty tobacco box and records.

[0069] Step 3: the reciprocating distributing machine 7 starts to distribute the tobacco delivered from the upstream equipment to the boxing station A, the material uniformizing plate 56 on the side starts to swing to perform the material uniformizing action, and simultaneously,

[0070] The first feeding mechanism and the second feeding mechanism suck the tobacco into the storage box 83 by the negative pressure.

[0071] Step 4: When the reciprocating feeder 7 feeds the tobacco box to the electronic ground scale 2 to the set weight value (the set weight value is a negative deviation), the reciprocating feeder 7 stops feeding on this side, reverses to feed the boxing station B, starts the boxing operation of the boxing station B, and the compaction mechanism 5 of the boxing station A compacts the tobacco in the tobacco box. After the compaction and pressure maintaining are completed, the pressure head 52 of the compaction mechanism 5 rises back to the original height, the storage box 83 of the first feeding mechanism is opened, and all the tobacco in the storage box 83 falls into the tobacco box through the hopper 51. If the weight of the tobacco in the tobacco box reaches the specified weight accuracy range, the tobacco fine feeding mechanism 8 stops feeding the tobacco into the tobacco box. If the weight is not within the required accuracy, the storage box 83 of the second feeding mechanism is opened, and all the tobacco in the storage box 83 falls into the tobacco box through the hopper 51. The above process is repeated until the weight of the tobacco in the tobacco box reaches the specified weight accuracy range.

[0072] Step 5: After the real tobacco box is compacted and the weight reaches the required accuracy, the lifting conveyor rises to lift the real tobacco box on the pressure support 6 to the same height as the conveying surface of the upstream and downstream chain conveyors 1, and is conveyed to the capping position by the downstream chain conveyor 1. The capping mechanism 41 is lowered to cap the tobacco box. After capping is completed, the capping mechanism 41 returns to the initial position. The real tobacco box that has completed boxing and capping is delivered to the downstream conveying equipment.

[0073] The steps 4 and 5 are repeated for the boxing station B, and the boxing operations of the boxing station A and the boxing station B are completed.

[0074] The above process is repeated to realize continuous production of tobacco boxing.

[0075] The above application of specific examples is used to help understand the present application and does not limit the present application. For those skilled in the art to which the present application belongs, according to the idea of the present application, a number of simple deductions, deformations or substitutions can be made.

Claims

1. A high precision baling system for tobacco, comprising: The packaging station A and the packaging station B are provided with a reciprocating distributing machine (7) between the packaging station A and the packaging station B, and the packaging station A and the packaging station B are both provided with a compaction mechanism (5) and a weighing module, characterized in that the packaging station A and the packaging station B further comprise: A tobacco fine feeding mechanism (8) is located between the tobacco case and the compaction mechanism (5) and is used for feeding the tobacco case; the feeding inlet of the tobacco fine feeding mechanism (8) is located on the laying surface of the reciprocating distributing machine (7), the feeding outlet is provided with a feeding unit, the feeding unit is located in the hopper (51) of the compaction mechanism (5), the outlet of the feeding unit is configured as an openable and closable structure, and the tobacco fine feeding mechanism (8) sends the material into the feeding unit in a negative pressure mode; When the reciprocating distributing machine (7) feeds the tobacco case to the weighing weight setting value of the weighing module, the reciprocating distributing machine (7) stops, the feeding unit is opened, fine feeding is performed on the tobacco case, and the weight of the tobacco in the tobacco case reaches the specified weight precision range; the weighing weight setting value is a negative deviation; The reciprocating distributing machine (7) is provided with a material limiting rake roller device (71) at both ends, and the material limiting rake roller device (71) is used for limiting the feeding amount of the reciprocating distributing machine (7); The hopper (51) of the compaction mechanism (5) is provided with a material distributing mechanism (54), and the material distributing mechanism (54) is configured as a swing structure and is used for making the upstream tobacco evenly fall into the tobacco case.

2. The tobacco precision baling metering system of claim 1, wherein, The tobacco fine feeding mechanism (8) is a storage structure and is provided with two groups of first and second feeding mechanisms, and the first and second feeding mechanisms both comprise: A wind pipe (81) is provided with a feeding inlet on the laying surface of the reciprocating distributing machine (7) and a feeding outlet connected with the feeding unit; the wind pipe (81) sucks the material into the feeding unit in a negative pressure mode; A tobacco suction power source is connected with the wind pipe (81) and connected with the feeding unit through a separator; When the reciprocating distributing machine (7) feeds the tobacco case to the weighing weight setting value of the weighing module, the reciprocating distributing machine (7) stops, the feeding unit of the first feeding mechanism is opened, and the tobacco case is fed; if the weight of the tobacco in the tobacco case reaches the specified weight precision range, the first feeding mechanism stops feeding the tobacco case, otherwise, the feeding unit of the first feeding mechanism is closed, the feeding unit of the second feeding mechanism is opened, and the tobacco case is fed, and the cycle is repeated until the weight of the tobacco in the tobacco case reaches the specified weight precision range.

3. The high precision tobacco baling metering system of claim 2, wherein, The feeding unit comprises: A storage box (83) is arranged in the hopper (51) of the compaction mechanism (5) and connected with the tobacco suction power source, the bottom of the storage box (83) is provided with a push-pull bottom plate (84), and the push-pull bottom plate (84) is used for opening and closing the storage box (83); The storage box (83) is provided with different volumes according to the material bulk density or uses the detection of the material height to control the storage amount.

4. The tobacco precision baling metering system of claim 1, wherein, The material limiting rake roller device (71) is configured to be height-adjustable to adjust the laying thickness of the reciprocating distributing machine (7).

5. The tobacco precision baling metering system of claim 1, wherein, The packaging station A and the packaging station B are provided with a lifting conveyor (3) for conveying the tobacco case, and the packaging station A and the packaging station B are both provided with a cover taking and covering machine (4).

6. The tobacco precision baling metering system of claim 5, wherein, The cover taking and capping machine (4) comprises: a cover clamping mechanism (41) for clamping the box cover; a cover moving mechanism (42) on which the cover clamping mechanism (41) is arranged, and the cover moving mechanism (42) is used to drive the cover clamping mechanism (41) to move in the horizontal direction.

7. The high precision tobacco baling metering system of claim 1, wherein, The uniform material distributing mechanism (54) comprises: a uniform material plate (56) arranged in the hopper (51) of the compaction mechanism (5); in the initial state, the uniform material plate (56) is in the vertical state; a uniform material plate driving source connected with the uniform material plate (56) and used to drive the uniform material plate (56) to swing.

8. The high precision tobacco baling metering system of claim 7, wherein, The lower part of the uniform material plate (56) is provided with a plurality of notches to form a ventilation structure.

9. The high precision tobacco baling metering system of claim 1, wherein, The pressure head (52) of the compaction mechanism (5) is in the grid structure.

10. A method of high precision baling of tobacco, characterised in that, Comprise: Step 1: the empty cigarette case is conveyed to the lifting conveyor (3) of the compaction station of the packing station A and the packing station B via the chain conveyor (1) and positioned; Step 2: the cover taking and capping machine (4) takes out the cigarette case cover and moves to the capping station, and the weighing module weighs the empty cigarette case and records; Step 3: the reciprocating material distributor (7) starts to distribute the tobacco from the upstream equipment to the packing station A, and the uniform material distributing mechanism (54) on this side starts to swing to perform the uniform material action, at the same time, the tobacco fine feeding mechanism (8) sucks the tobacco into the feeding unit by negative pressure; Step 4: when the reciprocating material distributor (7) feeds the tobacco to the weighing module to the set value of the weighing weight, the reciprocating material distributor (7) stops the distribution on this side, reverses to feed the packing station B, starts the packing action of the packing station B, and the compaction mechanism (5) of the packing station A compacts the tobacco in the cigarette case; after compaction, the feeding unit is opened, and secondary fine feeding is performed until the weight of the tobacco in the cigarette case reaches the specified weight precision range; The set value of the weighing weight is a negative deviation; Step 5: the real cigarette case that meets the compaction and weighing precision requirements is conveyed to the capping position by the chain conveyor (1), the cover taking and capping machine performs capping on the cigarette case, and after capping is completed, the cover taking and capping machine returns to the initial position; the real cigarette case that completes the packing and capping is handed over to the downstream conveying equipment; The packing station B repeats steps 4 and 5 to complete the packing operation of the packing station A and the packing station B. The cover taking and capping machine (4) comprises: a cover clamping mechanism (41) for clamping the box cover; a cover moving mechanism (42) on which the cover clamping mechanism (41) is arranged, and the cover moving mechanism (42) is used to drive the cover clamping mechanism (41) to move in the horizontal direction. The uniform material distributing mechanism (54) comprises: a uniform material plate (56) arranged in the hopper (51) of the compaction mechanism (5); in the initial state, the uniform material plate (56) is in the vertical state; a uniform material plate driving source connected with the uniform material plate (56) and used to drive the uniform material plate (56) to swing. The lower part of the uniform material plate (56) is provided with a plurality of notches to form a ventilation structure. The pressure head (52) of the compaction mechanism (5) is in the grid structure.

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