Automatic cigarette packing line

Abstract

The automatic cigarette packing production line comprises a cigarette feeding machine, two filling machines arranged on the left and right opposite sides of the cigarette feeding machine, and two cigarette box feeding machines arranged on the side of the two filling machines in one-to-one correspondence. The two cigarette box feeding machines open the covers and the lining paper of at least two cigarette boxes at a time, and synchronously transfer the opened at least two cigarette boxes to the input end of the vertical circular conveying line of the corresponding filling machine. The two filling machines sequentially convey the cigarette boxes received at the input end to the filling end and the output end of the vertical circular conveying line in groups of at least two. The cigarette feeding machine conveys the cigarettes in groups of a certain number to the filling end of the two filling machines through the horizontal circular conveying line. The two filling machines synchronously insert at least two groups of cigarettes into the corresponding at least two cigarette boxes at the respective filling ends. The two filling machines also turn over the lining paper and the cover of each cigarette box filled with cigarettes at the respective discharge ends to be buckled on the box body and the lining paper.

Description

Technical Field

[0001] This invention relates to packaging equipment, and more particularly to an automatic cigarette packing production line that automatically packs loose cigarettes into cigarette boxes. Background Technology

[0002] When packaging cigarettes, the produced bulk cigarettes are often filled into corresponding cigarette boxes according to a certain direction and quantity. Although the cigarette box body has a certain rigidity, the inside of the box is often lined with relatively soft or thin linings, paper linings, protective films, or promotional paper. In traditional cigarette packaging machines, rows of cigarettes are first placed into the inner lining paper, and then the entire sheet of cigarette box is rolled up according to the stacking shape of the cigarettes by a mold according to a preset movement. Then it is folded and laminated to complete the packaging. However, for pre-formed flip-top cigarette boxes, during packaging, it is often necessary to first flip and open the cigarette box lid around the end connected to the box body, then flip and fix the inner lining paper inside the box, and also pull and fix the lining bag to fully open the cigarette box so that the cigarettes can be smoothly loaded. After that, the lining paper and the box lid need to be flipped to close the corresponding lining bag and box body, thus completing the packaging of the cigarettes.

[0003] During this packaging process, the lid and liner paper often rotate around the connection point to the box body after opening, making it impossible to maintain a fully open position. This affects the traction and fixation of the liner bag. Traditional cigarette packaging machines cannot adequately meet the operational requirements of directly placing cigarettes into the formed cigarette box, and they also cannot effectively prevent the lid and liner paper from rotating during the filling process. Therefore, the packaging of cigarettes in formed cigarette boxes is currently mostly done manually. However, manual operation takes a long time to open the cigarette box, insert the cigarettes, and close the lid after the cigarettes are inserted, resulting in relatively low efficiency and an inability to guarantee the accuracy of each process. Although some devices use multiple cylinders or motors to drive multiple grippers or suction cups to fix the box body, liner paper, and liner bag from different directions, the multi-drive setup increases production costs, and the entire device is large, requiring more installation space, which cannot adequately meet the needs of automated production lines.

[0004] Therefore, a simple, space-saving, and efficient automatic cigarette packing production line is needed to overcome the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an automated cigarette packing production line that is simple in structure, occupies little space, and is highly efficient.

[0006] To achieve the above objectives, this invention discloses an automatic cigarette packing production line for filling cigarettes into cigarette boxes. The cigarette box has a lid connected to its left side for closing onto the box. The box also contains a liner bag and a liner paper connected to the left side of the box or liner bag for covering the surface of the liner bag. The automatic cigarette packing production line includes a cigarette feeding machine, two filling machines arranged on opposite sides of the cigarette feeding machine, and two cigarette box feeding machines arranged correspondingly to the two filling machines. Each time, the two cigarette box feeding machines open the lids and liner paper of at least two cigarette boxes and simultaneously transfer the opened cigarette boxes. At the input end of the vertical circular conveyor line of the corresponding filling machine, the two filling machines sequentially convey the cigarette boxes received at the input end in groups of at least two towards the filling end and the output end of the vertical circular conveyor line. The cigarette feeding machine conveys cigarettes in groups of a certain quantity to the filling end of the two filling machines through the horizontal circular conveyor line. The two filling machines simultaneously insert at least two groups of cigarettes into the corresponding at least two cigarette boxes at their respective filling ends. The two filling machines also flip the lining paper and box lid of each cigarette box filled with cigarettes onto their respective unloading ends to fasten them onto their lining bag and box body, thereby completing the box lid operation.

[0007] Preferably, the automatic cigarette packing production line also includes two labeling machines arranged one-to-one at the output ends of the two filling machines. The two labeling machines receive and transport the cigarette boxes after packing through their respective vertical circular conveyor lines. During the transport process, the labeling mechanism affixes labels to the cigarette boxes, and the diversion mechanism detects, identifies, and diverts the labeled cigarette boxes.

[0008] Preferably, the cigarette box feeding machine includes a belt conveyor and a box opening device arranged at intervals along the left-right direction, and a conveying device erected between the two. The belt conveyor transports cigarette boxes to be opened in groups of at least two to the conveying device. The box opening device includes at least two box opening units arranged at intervals along the front-back direction. The conveying device travels back and forth between the belt conveyor, the box opening device, and the filling machine to transfer each cigarette box in the same group to the corresponding box opening unit. The box opening unit flips the lid of the cigarette box it receives away from the box body to open it, and flips the liner paper of the cigarette box away from the box body to open it. The conveying device is also used to synchronously transfer each cigarette box opened on each box opening unit to the filling machine.

[0009] Preferably, the belt conveyor includes a belt conveyor mechanism, a positioning platform connected to the belt conveyor mechanism on the side near the box-opening device, and at least two horizontal push blocks and at least two vertical push blocks arranged at equal intervals on the left and right opposite sides of the positioning platform in the front-back direction. The belt conveyor mechanism is used to convey the cigarette boxes to be opened with the lid facing upwards, and each time it conveys at least two cigarette boxes to at least two horizontal push blocks in a corresponding manner. Each horizontal push block is used to perform linear reciprocating motion in the left-right direction to push at least two cigarette boxes on the belt conveyor mechanism onto the positioning platform in a corresponding manner. Each vertical push block is used to perform linear reciprocating motion in the front-back direction to push each cigarette box on the positioning platform to a position that is convenient for the handling device to pick up and deliver.

[0010] Preferably, the conveying device includes a front picking-up mechanism and a rear picking-up mechanism arranged at intervals in the left-right direction. The front picking-up mechanism picks up at least two cigarette boxes from the belt conveyor and delivers them one-to-one to at least two opening units of the opening device using at least two grippers arranged at equal intervals in the front-back direction. During the picking-up and delivery process, the front and back of the cigarette boxes are identified by a bottom camera arranged at the bottom of each opening unit. The rear picking-up mechanism picks up each opened cigarette box from the corresponding opening unit and rotates it 90° before placing it on the filling machine using at least two suction cups arranged at equal intervals in the front-back direction.

[0011] Preferably, the box-opening unit includes a platform, a gear and rack mechanism disposed at the bottom end of the platform, a cam mechanism connected to the output end of the gear and rack mechanism, and a bracket connected to the output end of the cam mechanism and close to the platform, as well as a lid-opening mechanism, a flipping mechanism, and a shaping mechanism disposed at the top end of the platform. The platform is sequentially provided with a feeding position, a lid-opening position, a flipping position, a shaping position, and a discharging position. The lid-opening mechanism, the flipping mechanism, and the shaping mechanism are correspondingly arranged at the lid-opening position, the flipping position, and the shaping position, respectively. The cam mechanism and the... The gear and rack mechanism drives the bracket to reciprocate linearly in the up-down and back-forward directions, so that the bracket lifts each cigarette box at the feeding position, the opening position, the flipping position, and the shaping position upward and moves them backward to the corresponding opening position, the flipping position, the shaping position, and the discharging position. The opening mechanism and the flipping mechanism flip the lid and liner of the cigarette box away from the box body to open it. The shaping mechanism is used to press and shape the cigarette box from above, so that the cigarette box is kept in the open state with the lid and liner open.

[0012] Preferably, the cigarette feeding machine further includes a plurality of first carriers evenly distributed on the horizontal circular conveyor line, two pushing devices arranged at opposite rear ends of the horizontal circular conveyor line, and two transfer devices arranged on opposite outer sides of the horizontal circular conveyor line in a one-to-one correspondence with the two pushing devices. Each of the two transfer devices has at least two second carriers arranged at equal intervals. The first carriers are used to receive groups of cigarettes and drive the cigarettes to be conveyed on the horizontal circular conveyor line. The two pushing devices are used to perform linear reciprocating motion in the left-right direction, pushing the cigarettes in at least two of the first carriers to at least two of the corresponding second carriers of the transfer devices. The two transfer devices are used to perform linear reciprocating motion in the front-back direction to transfer the cigarettes in the second carriers to the filling machine.

[0013] Preferably, the filling machine further includes a plurality of third carriers evenly distributed on the vertical circular conveyor line, and a pushing device, a box-in device, and a lid-closing device arranged sequentially along the conveying direction of the vertical circular conveyor line, as well as another pushing device arranged on the opposite side of the lid-closing device. The third carriers are provided with a placement area for placing the cigarette box after opening, and a positioning element and a swinging element arranged at the edge of the placement area. The pushing device drives the positioning element to move or rotate through the pushing element, while also driving the swinging element to rotate, so that the positioning element... The positioning component can fix or release the cigarette box in the placement area, and the swinging component can press and position or release the liner and lid of the cigarette box. The box-insertion device uses the opening mechanism to adsorb and fix the liner of the cigarette box, and uses the filling mechanism arranged opposite to the opening mechanism to insert the group of cigarettes into the cigarette box in a group and at an angle. The lid-closing device is used to flip the lid and liner of the cigarette box filled with cigarettes toward the direction closer to the box body, so as to close the box body and the liner.

[0014] Preferably, the vertical circular conveyor line transports the third carrier in groups of at least two, and the number of pushing components, bag opening mechanisms, filling mechanisms, and cap closing devices in each pushing device corresponds to the number of carriers transported in the same group.

[0015] Preferably, the third carrier further includes a carrier plate, which has a square placement area and two limiting blocks protruding from the edges of adjacent sides of the placement area. The positioning member includes a first clamping plate and a second clamping plate that slide on the edges of the other two adjacent sides of the placement area, and each of the first clamping plate and the second clamping plate has a roller at its edge. The swinging member is rotatably mounted on the edge of the placement area and is linked to the second clamping plate through a gear and rack structure arranged at the bottom of the carrier plate, so that it can rotate into or out of the placement area under the drive of the sliding second clamping plate. The pushing member includes a pushing column and a pushing block that are arranged in a one-to-one correspondence with the two rollers and can move linearly in the vertical direction. The pushing surfaces on the pushing column and the pushing block that abut against the corresponding rollers are both inclined surfaces or arc surfaces.

[0016] Compared with the prior art, the automatic cigarette packing production line of the present invention feeds cigarettes to two filling machines arranged on its left and right sides through a cigarette feeding machine, and feeds cigarette boxes to the two filling machines through two cigarette box feeding machines. The two filling machines respectively fill the cigarettes provided by the cigarette feeding machine into the cigarette boxes provided by the two filling machines. The overall structure of the production line is simple, the layout is reasonable and compact, effectively reducing the footprint, and the cigarette packing efficiency and packing accuracy are high, which is suitable for meeting the needs of automated production lines. The cigarette box feeding machine opens the lids and liner paper of at least two cigarette boxes each time, and simultaneously transfers the opened cigarette boxes to the corresponding filling machines. The two filling machines receive and transport the cigarette boxes through vertical circular conveyor lines, so that the cigarette boxes are sequentially passed from the input end of the vertical circular conveyor line through its filling end and unloading end. The cigarette feeding machine transports cigarettes in groups of a certain number to the filling ends of the two filling machines through a horizontal circular conveyor line, so that the two filling machines simultaneously insert the groups of cigarettes into the corresponding cigarette boxes at their respective filling ends. In addition, the two filling machines also flip the liner paper and lid of each cigarette box at their respective unloading ends so that they are fastened to the box body and liner paper of the cigarette box. Thus, the simultaneous filling of cigarettes in multiple cigarette boxes can be achieved each time, further improving the efficiency of cigarette boxing. Attached Figure Description

[0017] Figure 1 This is a perspective view of the cigarette box of the present invention.

[0018] Figure 2 This is a plan view of the automatic cigarette packing production line of the present invention.

[0019] Figure 3 This is a perspective view of the cigarette box feeding machine of the present invention.

[0020] Figure 4 This is a top view of the cigarette box feeding machine of the present invention.

[0021] Figure 5This is a side view of the cigarette box feeding machine of the present invention.

[0022] Figure 6 This is a perspective view of the belt conveyor device of the present invention.

[0023] Figure 7 for Figure 6 Enlarged view of part A in the middle.

[0024] Figure 8 This is a perspective view of the filling unit of the present invention.

[0025] Figure 9 This is a top view of the cigarette feeding machine of the present invention.

[0026] Figure 10 This is a top view of the pushing device of the present invention.

[0027] Figure 11 This is a perspective view of the filling machine of the present invention.

[0028] Figure 12 for Figure 11 Enlarged view of section B.

[0029] Figure 13 for Figure 11 Enlarged view of section C.

[0030] Figure 14 This is a top view of the third vehicle of the present invention.

[0031] Figure 15 This is a bottom view of the third vehicle of the present invention.

[0032] Figure 16 This is a perspective view of the pushing device of the present invention.

[0033] Figure 17 This is a perspective view of the bag-opening mechanism of the present invention. Detailed Implementation

[0034] To illustrate the technical content, structural features, objectives, and effects of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0035] See Figure 1This invention relates to the filling of loose cigarettes 300 in a flip-top cigarette case 200. The cigarette case 200 has a certain rigidity and an internal storage space. The cigarettes 300 can be arranged in a certain number within the storage space, which is roughly square in shape. Specifically, the loose cigarettes 300 can be arranged in two rows of 10 each. Of course, the cigarette case 200 can also hold only one row or three rows of cigarettes 300, with the number of cigarettes 300 in each row depending on actual needs. Specifically, a lid 202 with a certain rigidity is connected to the opposite left end of the case 201. The lid 202 can be flipped around the connecting end of the case 201 to engage with the upper end of the case 201, thereby sealing the cigarettes 300 between them. Specifically, the box body 201 also includes a liner 203 within its accommodating space for further positioning and protection of the cigarettes 300 within the accommodating space. Additionally, the box body 201 contains a liner paper 204 to cover the liner paper 203 and the cigarettes 300, providing both good isolation and aesthetic appeal. The liner paper 204 is foldably attached to the opposite left side of the box body 201 or the liner paper 203, allowing it to be flipped over and cover the liner paper 203 and the cigarettes 300. The liner paper 204 and the liner paper 203 can be made of kraft paper, making them relatively thin and lightweight.

[0036] See Figure 1 and Figure 2The automatic cigarette packing production line 100 provided by the present invention is mainly used to fill cigarettes 300 into the box body 201 of cigarette box 200. In general, the automatic cigarette packing production line 100 provided by the preferred embodiment of the present invention includes a cigarette feeding machine 20, two filling machines 30 arranged on the left and right opposite sides of the cigarette feeding machine 20, and two cigarette box feeding machines 10 arranged on the sides of the two filling machines 30 respectively. The cigarette box feeding machine 10 mainly conveys the cigarette box 200 to the filling machine 30 through a belt conveyor structure. During the conveying process, the lid 202 and the liner paper 204 of the cigarette box 200 are flipped to the opening position away from the box body 201. At the same time, the cigarette feeding machine 20 conveys the cigarettes 300 to the filling machines 30 on both sides through the horizontal circular conveyor line 21. The filling machine 30 mainly receives and conveys the opened cigarette box 200 through the vertical circular conveyor line 31. During the conveying process, the liner bag 203 and the lid 202 are also positioned to accurately fill the cigarette box 200 with the cigarettes 300. After the cigarettes 300 are filled into the box, the filling machine 30 flips the liner paper 204 to cover the surface of the liner bag 203 and the cigarettes 300, and flips the lid 202 to fasten it onto the box body 201, thus completing the lid operation of the cigarette box 200. Specifically, the vertical circular conveyor line 31 has an input end 31a, a filling end 31b, and an output end 31c arranged sequentially along its conveying direction. Each time, the two cigarette box feeders 10 open the lids 202 and liner 204 of at least two cigarette boxes 200, and simultaneously move the opened cigarette boxes 200 to the input end 31a of the vertical circular conveyor line 31 of the corresponding filling machine 30. The two filling machines 30, through their respective vertical circular conveyor lines 31, convey the cigarette boxes 200 received at the input end 31a in groups of at least two towards the filling end 31b and the output end 31c. Simultaneously, the cigarette feeding machine 20... The flat circular conveyor line 21 transports cigarettes 300 in groups to the filling end 31b of the two filling machines 30. The two filling machines 30 simultaneously insert at least two groups of cigarettes 300 into the corresponding at least two cigarette boxes 200 at their respective filling ends 31b. The two filling machines 30 also flip the liner paper 204 and the box lid 202 of each cigarette box 200 filled with cigarettes 300 at their respective output ends 31c so that they are fastened to their liner bag 203 and box body 201 to complete the corresponding box lid operation.

[0037] See Figure 2In some embodiments, the automatic cigarette packing production line 100 of the present invention further includes two labeling machines 40, which are arranged one-to-one at the output ends 31c of the two filling machines 30. Each labeling machine 40 receives and transports the filled cigarette boxes 200 from the corresponding filling machines 30 via its own vertical circular conveyor line 41. During the transport process, labels are affixed to the cigarette boxes 200 by labeling mechanisms 42 located at the opposite front ends of the vertical circular conveyor line 41. Specifically, the labels are affixed... The labeling is applied to the box body 201, the lid 202, or at the connection between the box body 201 and the lid 202. Each labeling machine 40 also uses a diversion mechanism 43 located at the opposite rear end of its vertical circular conveyor line 41 to detect, identify, and divert the labeled cigarette boxes 200. Specifically, qualified products are transferred to the belt conveyor mechanism 44 located on the opposite side of the vertical circular conveyor line 41 for conveying and unloading, while unqualified products are transferred to the waste bin 45 located on the other side of the vertical circular conveyor line 41 for unloading. It should be noted that a material handling robot 46 is also arranged at the opposite front end of the vertical circular conveyor line 41. The material handling robot 46 is used to pick up cigarette boxes 200 at the output end 31c of the vertical circular conveyor line 41 in groups of at least two and send them to the vertical circular conveyor line 41. The vertical circular conveyor 41 has a portion of its front end overlapping with the output end 31c of the vertical circular conveyor 31, which facilitates material handling by the picking robot 46. Furthermore, the vertical circular conveyor 41 receives cigarette boxes 200 via evenly distributed receiving carriers 47, and transports the receiving carriers 47 in groups of at least two. The labeling mechanism 42 and the picking robot 46 each have a labeling head and a picking gripper corresponding to the number of receiving carriers 47 transported in the same group, thereby achieving efficient material handling and labeling operations. Preferably, the cigarette box feeder 10 simultaneously conveys four cigarette boxes 200 to be filled to the input end 31a of the filling machine 30 each time, and the cigarette stick feeder 20 conveys four groups of cigarette sticks 300 (20 sticks per group) to the filling end 31b of the filling machine 30 each time. The filling machine 30 fills the four groups of cigarette sticks 300 into the four cigarette boxes 200 in the same group each time. The labeling machine 40 removes four cigarette boxes 200 filled with cigarette sticks from the output end 31c of the filling machine 30 each time, and simultaneously performs labeling and diversion conveying operations on the four cigarette boxes 200, effectively improving production capacity.

[0038] Continue reading Figure 2Each cigarette box 200 stacked in the packaging box can be manually placed one by one into the cigarette box feeding machine 10. To improve efficiency, in some embodiments, a docking machine 50 is arranged at the input end of each of the two cigarette box feeding machines 10. This docking machine 50 automatically picks up each cigarette box 200 stacked in the packaging box and delivers it one by one to the cigarette box feeding machine 10. The docking machine 50 includes a feeding roller conveying mechanism 51, a return roller conveying mechanism 52, and a picking and delivering mechanism 53 located between the two. The feeding roller conveying mechanism 51 sequentially conveys each packaging box filled with cigarette boxes 200 to the picking and delivering mechanism 53, which then picks up each cigarette box 200 from the packaging box and delivers it to the input end of the cigarette box feeding machine 10. The empty packaging boxes after picking up the cigarette boxes are then moved to the return roller conveying mechanism 52 for reuse. Preferably, the labeling machine 40 and the docking machine 50 on each side are arranged parallel to each other in the left-right direction, thus sharing the frame and housing, effectively utilizing space, and further optimizing the structure. Of course, the automatic cigarette packing production line 100 of the present invention also includes a control system, which is connected to the cigarette box feeder 10, cigarette feeder 20, filling machine 30, labeling machine 40 and docking machine 50 respectively, and is used to control the coordinated actions between the machines. It should be noted that the specific structure and working principle of the control system are well known in the art and will not be described in detail here.

[0039] See Figures 2 to 8 The cigarette box feeding machine 10 includes a belt conveyor 11 and a box opening device 13 arranged alternately in a left-right direction, and a conveying device 12 erected between them. The belt conveyor 11 is used to convey cigarette boxes 200 to be opened, either conveyed by the docking machine 50 or manually loaded, in groups of at least two to the conveying device 12, thereby enabling the synchronous conveying of multiple cigarette boxes 200 at a time. The box opening device 13 includes at least two box opening units 13a arranged alternately in a front-back direction, the number of which corresponds to the number of cigarette boxes 200 conveyed by the belt conveyor 11 each time. The conveying device 12 travels back and forth between the belt conveyor 11 and the box-opening device 13, each time transferring the cigarette boxes 200 conveyed by the belt conveyor 11 to the corresponding box-opening unit 13a. The box-opening unit 13a flips the lid 202 of the cigarette box 200 it receives away from the box body 201 to open it, and flips the lining paper 204 of the cigarette box 200 with the lid 202 open away from the box body 201 to open it, so that the lining bag 203 in the box body 201 can be exposed and kept in the open state. The conveying device 12 also travels back and forth between the box-opening device 13 and the filling machine 30 to synchronously transfer the opened cigarette boxes 200 on the box-opening unit 13a to the filling machine 30.

[0040] Combination Figures 2 to 7The belt conveyor 11 includes a belt conveyor mechanism 111, a positioning platform 112 connected to the belt conveyor mechanism 111 on the side near the box opening device 13, at least two horizontal push blocks 113 arranged at equal intervals on the opposite left side of the positioning platform 112 in the front-back direction, and at least two vertical push blocks 114 arranged at equal intervals on the opposite right side of the positioning platform 112 in the front-back direction. The positioning platform 112 has a horizontal receiving surface that is flush with the conveying surface of the belt conveyor mechanism 111. The belt conveyor mechanism 111 is used to convey the cigarette boxes 200 to be opened with the lids 202 facing upwards. Each time, at least two cigarette boxes 200 are conveyed one-to-one to at least two horizontal push blocks 113. Each horizontal push block 113 moves in a straight line reciprocating motion in the left and right direction to push at least two cigarette boxes 200 on the belt conveyor mechanism 111 onto the positioning platform 112. Each vertical push block 114 is used to move in a straight line reciprocating motion in the front and back direction to push each cigarette box 200 on the positioning platform 112 into place, thereby aligning and adjusting it to a position that is convenient for the handling device 12 to pick up and deliver. Specifically, in some embodiments, the belt conveyor mechanism 111 has an adjustable inlet and outlet 111a at the position corresponding to each horizontal push block 113. By adjusting the size of the inlet and outlet 111a to match the length of the cigarette box 200, it is not only convenient for the horizontal push block 113 to push cigarette boxes 200 of different sizes, effectively improving the adaptability of the whole machine, but also plays a certain guiding and limiting role during the pushing process, effectively improving the accuracy of cigarette box 200 conveying and feeding.

[0041] In addition, each push block 113 can move synchronously under the drive of the same push motor 1131. At this time, the push motor 1131 can be a linear motor, and each push block 113 is connected to the output end of the linear motor at equal intervals, so as to perform linear reciprocating motion under the drive of the linear motor. Of course, each push block 113 can also move synchronously under the drive of each push motor 1131 connected in a one-to-one correspondence. At this time, the push motor 1131 can be a rotary motor. Each push motor 1131 is installed on a corresponding cantilever 1132. Each cantilever 1132 is arranged at equal intervals in the front-back direction and is arranged in the left-right direction, thus being erected above the belt conveyor mechanism 111 and the positioning platform 112 at intervals. Each cantilever 1132 is also wound with a synchronous belt 1133 connected to the output end of the push motor 1131 installed thereon. The push block 113 is connected to the synchronous belt 1133. When the synchronous belt 1133 rotates under the drive of the corresponding push motor 1131, it can drive the push block 113 connected thereon to make linear reciprocating motion in the left-right direction.

[0042] Similarly, each push block 114 can be connected at equal intervals to the output end of the same positioning motor 1141. Of course, each push block 114 can also move synchronously under the drive of at least two corresponding positioning motors 1141. Specifically, the positioning table 112 has a through slot 112a arranged along its length and at least two reference blocks 1142 arranged at equal intervals in the through slot 112a and corresponding to each push block 114. Each push block 114 slides in the through slot 112a and is connected at equal intervals to a lead screw or a synchronous belt. The lead screw or synchronous belt is connected to the output end of the same positioning motor 1141 installed on the bottom side of the positioning table 112. In this case, the positioning motor 1141 is a rotary motor, so that the rotation of a pair of positioning motors 1141 can realize the synchronous drive of multiple push blocks 114. Of course, each longitudinal push block 114 sliding in the through slot 112a can also be connected at equal intervals to a transition plate of a certain length, and connected to the output end of the same alignment motor 1141 installed on the bottom side of the positioning table 112 through the transition plate. At this time, the alignment motor 1141 can be a linear motor, so that the synchronous drive of multiple longitudinal push blocks 114 can be achieved through the telescopic movement of a pair of alignment motors 1141.

[0043] Combination Figures 2 to 5The conveying device 12 includes a front picking-and-feeding mechanism 121 and a rear picking-and-feeding mechanism 122 arranged at intervals along the left and right directions. The front picking-and-feeding mechanism 121 uses at least two grippers 1211, equidistantly arranged along the front and back directions, to pick up at least two cigarette boxes 200 from the positioning platform 112 of the belt conveyor 11 and place them one-to-one onto at least two opening units 13a of the opening device 13. During the picking-and-feeding process, a bottom camera 14 located on the left side of each opening unit 13a identifies the front and back of the cigarette box 200; if the lid 202 is facing upwards, it is the front; otherwise, it is the back. The rear picking-and-feeding mechanism 122 uses at least two suction cups 1221, equidistantly arranged along the front and back directions, to pick up the opened cigarette box 200 from the corresponding opening unit 13a, rotate it 90°, and place it onto the vertical circular conveyor line 31 of the filling machine 30. The grippers 1211, suction cups 1221, and opening units 13a are arranged in a one-to-one correspondence. Specifically, the front pick-up and delivery mechanism 121 also includes a transverse motor 1212, a vertical motor 1213 connected to the output end of the transverse motor 1212, at least two rotary motors 1214 connected at equal intervals along the front-back direction to the output end of the vertical motor 1213, and at least two clamping cylinders 1215 connected to the output ends of the at least two rotary motors 1214 in a corresponding manner. Each clamping cylinder 1215 has a gripper 1211 connected to its output end. The horizontal movement motor 1212 drives each gripper 1211 to simultaneously reciprocate in a straight line in the left and right direction, thereby synchronously moving back and forth between the positioning platform 112 of the belt conveyor 11 and each opening unit 13a of the opening device 13. The vertical movement motor 1213 drives each gripper 1211 to simultaneously reciprocate in a straight line in the up and down direction, so as to move closer to or away from the positioning platform 112 or the opening unit 13a. Each rotary motor 1214 can drive the corresponding gripper 1211 to rotate a certain angle, thereby adjusting the placement angle of the cigarette box 200, so that each gripper 1211 can accurately grip and place the cigarette box 200 under the drive of the corresponding clamping cylinder 1215. The rear pick-up and delivery mechanism 122 has a structure that is roughly the same as that of the front pick-up and delivery mechanism 121. The difference is that at least two suction cups 1221 are directly connected to the output ends of at least two corresponding rotary motors 1224. The horizontal motor 1222 is used to drive each suction cup 1221 to make linear reciprocating motion in the left and right direction, so as to synchronously move back and forth between each box opening unit 13a and the vertical circular conveyor line 31. The vertical motor 1223 connected to the output end of the horizontal motor 1222 drives each suction cup 1221 to make linear reciprocating motion in the up and down direction at the same time, so as to move closer to or further away from the box unit 13a or the vertical circular conveyor line 31. The at least two rotary motors 1224 connected at equal intervals in the front and back direction to the output end of the vertical motor 1223 drive the suction cups 1221 connected to them to rotate 90° so that they are placed on the vertical circular conveyor line 31 of the filling machine 30 in a direction that facilitates the filling of the cigarette stick 300.In some embodiments, the front pick-up and delivery mechanism 121 only transfers qualified products with the lid 202 facing upwards to the box-opening device 13, while transferring unqualified products with the lid 202 facing downwards to the inclined guide trough 15. The guide trough 15 and the box-opening unit 13a are also arranged in a one-to-one correspondence and are respectively arranged at an incline at the bottom of the belt conveyor 11, effectively utilizing space. Furthermore, the front pick-up and delivery mechanism 121 and the rear pick-up and delivery mechanism 122 are mounted on opposite sides of the same mounting plate, further optimizing the structure.

[0044] Combination Figures 3 to 5 and Figure 8 The box-opening unit 13a includes a platform 131, a gear and rack mechanism 132 located at the bottom end of the platform 131, a cam mechanism 133 connected to the output end of the gear and rack mechanism 132, and a bracket 134 connected to the output end of the cam mechanism 133 and close to the platform, as well as a lid-opening mechanism 135, a flipping mechanism 136, and a shaping mechanism 137 located at the top end of the platform 131. The platform 131 is provided with a feeding position 131a, a lid-opening position 131b, a flipping position 131c, a shaping position 131d, and a discharge position 131e, arranged equidistantly. The lid-opening mechanism 135, the flipping mechanism 136, and the shaping mechanism 137 are correspondingly arranged at the lid-opening position 131b, the flipping position 131c, and the shaping position 131d. The cam mechanism 133 and the rack and pinion mechanism 132 respectively drive the bracket 134 to reciprocate linearly in the up-down and left-right directions. This causes the bracket 134 to lift the cigarette boxes 200 at the feeding position 131a, opening position 131b, flipping position 131c, and shaping position 131d upwards and convey them to the next working position, thereby moving them to the corresponding opening position 131b, flipping position 131c, shaping position 131d, and discharging position 131e. The opening mechanism 135 and the flipping mechanism 136 respectively flip the lid 202 and the liner 204 of the cigarette box 200 away from the box body 201 to open it, so that the accommodating space of the box body 201 and the liner 203 are fully exposed. The shaping mechanism 137 is used to press and shape the cigarette box 200 from above, so that the cigarette box 200 is kept in the open state with the lid 202 and the liner 204 open, and to prevent the open lid 202 and the liner 204 from rotating back towards the box body 201 during the transfer process.

[0045] See Figure 8The platform 131 includes a base plate 1311 and two carrier plates 1312 symmetrically mounted on the base plate 1311 along the front-back direction. The two carrier plates 1312 are each arranged in the left-right direction and have a certain length, thereby forming a through space between the two carrier plates 1312. The cigarette box 200 is specifically attached to the two carrier plates 1312 along its length direction. The two carrier plates 1312 are also arranged on the base plate 1311 with adjustable spacing, thereby realizing the support of cigarette boxes 200 of different lengths. The feeding position 131a, the opening position 131b, the flipping position 131c, and the shaping position 131d are arranged sequentially along the longitudinal direction of the carrier plate 1312. The width of the bracket 134 is smaller than the width of the through space between the two carrier plates 1312. The bracket 134 only needs to move one station upward and backward each time to simultaneously lift the cigarette boxes 200 located at each station on the two carrier plates 1312 upward and drop them to the next station. This achieves efficient and accurate synchronous transfer of cigarette boxes 200 between multiple stations, effectively simplifies the structure, and provides high transfer efficiency and accurate positioning.

[0046] Specifically, the gear and rack mechanism 132 includes a support frame 1321 mounted on a base plate 1311 of the platform 131, a transfer motor 1322 arranged at the opposite bottom end of the support frame 1321, a gear 1323 connected to the output end of the transfer motor 1322, and a rack 1324 slidably mounted on the opposite top end of the support frame 1321 in the left-right direction and meshing with the gear 1323. The cam mechanism 133 includes a mounting base 1331 slidably mounted on the support frame 1321 in the left-right direction and connected to the rack 1324, a lifting motor 1332 arranged on the mounting base 1331, and a cam 1333 rotatably arranged on the mounting base 1331 and connected to the output end of the lifting motor 1332 via a synchronous belt 1334. The bracket 134 includes a support plate 1341 that slides on the mounting base 1331 in the vertical direction and slidably abuts against the cam 1333, a support plate 1342 mounted on the support plate 1341, and a plurality of vacuum suction cups 1343 that are equidistantly arranged on the support plate 1342 in the horizontal direction. The vacuum suction cups 1343 are used to adsorb and position the cigarette box 200 at the corresponding work station from the bottom, and their number is one less than the number of work stations set on the platform 131. In actual operation, the lifting motor 1332 drives the cam 1333 to rotate, causing the bracket 134 to be pushed against the mounting base 1331 and move back and forth in a straight line in the vertical direction. This pushes the cigarette boxes 200 at each station to be detached from the support of the platform 131. The transfer motor 1322 drives the gear 1323 to rotate, and the rack 1324 drives the mounting base 1331 to move back and forth in a straight line in the left and right direction. This causes the bracket 134 to move the cigarette boxes 200 at each station back one station simultaneously. Under the rotational force of the cam 1333, the bracket 134 can also lift the cigarette boxes 200 after moving back one station back down onto the platform 131 to complete the corresponding work at the corresponding station.

[0047] Specifically, the lid opening mechanism 135 drives the lid opening suction cup 1352 connected to the output end of the lid opening motor 1351, which is installed on the top outer side of the platform 131, to rotate. This causes the lid opening suction cup 1352 to pick up the lid 202 from the top and rotate the lid 202 away from the box body 201 until the lid 202 is rotated to a position that is flush with or slightly lower than the top surface of the box body 201, thus completing the lid opening operation. The flipping mechanism 136 drives the flipping suction cup 1362 connected to the output end of the flipping motor 1361 to rotate via the flipping motor 1361 installed on the top outer side of the platform 131. This causes the flipping suction cup 1362 to pick up the liner paper 204 from the top and flip the liner paper 204 in a certain angle away from the box body 201. Since the liner paper 204 is relatively thin, it does not need to be flipped to a position parallel to the box body 201 like the box lid 202. Instead, it can be flipped to a position that is upright or slightly greater than 90°. This not only does not affect the shaping action of the subsequent shaping mechanism 137, but also does not require too much rotation space, effectively optimizing the structure. The flipping mechanism 136 also includes an auxiliary plate 1363 mounted on the platform 131 and located on the opposite right side of the flipping suction cup 1362. This auxiliary plate 1363 guides and restricts the flipped-open liner paper 204 and the lid 202 during transfer, effectively preventing the liner paper 204 and lid 202 from rotating back towards the box body 201 during transfer to the shaping mechanism 137. The shaping mechanism 137 includes a pressure plate 1371 spanning the upper side of the flipping position 131c and the shaping position 131d. The pressure plate 1371 is sheet-shaped and connected to the support plate 1341 via a connecting plate 1372. This allows it to move up and down relative to the platform 131 under the influence of the support plate 1341, pressing and shaping the cigarette box 200 from the top side, and effectively preventing the lid 202 and liner paper 204 from rotating back towards the box body 201 during movement.

[0048] Specifically, a positioning component 138 is also provided on the platform 131 at the discharge position 131e, which is arranged at the edge of the platform 131. The positioning component 138 includes two vertical plates 1381 arranged on the outer side walls of the two carrier plates 1312 and two horizontal plates 1382 pivotally connected to the top side of the two vertical plates 1381. When the conveying device 12 picks up the cigarette box 200, the two horizontal plates 1382 rotate relative to the two vertical plates 1381 under the pushing force of the cigarette box 200 moving upward, so as to avoid it and simply and effectively relieve the pressure on the cigarette box 200. After the cigarette box 200 is removed, the two horizontal plates 1382 automatically return to the initial position that is relatively parallel to the carrier plate 1312, so as to press and position the edge of the cigarette box 200 at the discharge position 131e from above.

[0049] See Figure 2 , Figure 9 and Figure 10The cigarette feeding machine 20 also includes several first carriers 22 evenly distributed on the horizontal circular conveyor line 21, two pushing devices 23 staggered on the left and right opposite sides of the opposite rear end of the horizontal circular conveyor line 21, and two transfer devices 24 arranged on the opposite outer side of the horizontal circular conveyor line 21 in a one-to-one correspondence with the two pushing devices 23. Each of the two transfer devices 24 has at least two second carriers 25 arranged at equal intervals. The first carriers 22 are used to feed the cigarette feeding machine 300 or manually fed groups of cigarettes. The cigarette 300 is received and conveyed on the horizontal circular conveyor line 21. Two pushing devices 23 are used to reciprocate in a straight line in the left-right direction, pushing the cigarette 300 from at least two first carriers 22 to at least two second carriers 25 of the corresponding transfer device 24. The two transfer devices 24 reciprocate in a straight line in the front-back direction to synchronously transfer the cigarette 300 from their respective second carriers 25 to the filling end 31b of the corresponding filling machine 30. The first carriers 22 and second carriers 25 are arranged in a one-to-one correspondence, and the cigarettes 300 in them are arranged in two rows of 10 each. Specifically, the horizontal circular conveyor line 21 includes a circular guide rail 211 arranged horizontally on the machine base 101, two sprockets 212, a chain 213, and a servo motor that drives the two sprockets 212 to rotate. The two sprockets 212 are arranged at intervals on opposite sides of the circular guide rail 211. The servo motor is located in the frame below the machine base 101. The chain 213 is wound around the two sprockets 212. Each first carrier 22 is slidably mounted on the circular guide rail 211 at equal intervals and is connected to the chain 213. When the two sprockets 212 rotate under the drive of the servo motor, they drive each first carrier 22 to circulate and convey on the circular guide rail 211. The two pushing devices 23 are arranged in a staggered manner on the left and right sides of the inner side of the annular guide rail 211. Correspondingly, the two transfer devices 24 are arranged in a staggered manner on the left and right sides of the outer side of the annular guide rail 211. Thus, they are arranged facing each other on the inner and outer sides of the annular guide rail 211 with the corresponding pushing devices 23. The layout is reasonable and compact, which facilitates the efficient pushing of the cigarette 300 in the first carrier 22 into the second carrier 25.

[0050] like Figure 10As shown, the pushing device 23 includes a carrier plate 231 mounted on the machine base 101 in the front-back direction, a motor arranged at the opposite bottom end of the carrier plate 231, a cam 232 mounted on the opposite top end of the carrier plate 231 and connected to the output end of the motor, a transition plate 233 slidably mounted on the opposite top end of the carrier plate 231 in the left-right direction and slidably engaged with the cam 232, and at least two push plates 234 equally spaced on the transition plate 233. The motor for driving the cam 232 to rotate is specifically housed in the frame below the machine base 101 and is not exposed. Its output end passes through the carrier plate 231 and is connected to the cam 232. The cam 232 is disc-shaped and is an eccentric cam. A drive roller 2321 protrudes from the edge of its top end. The transition plate 233 has a strip groove 2331 arranged in the front-back direction, and the drive roller 2321 is slidably engaged in the strip groove 2331. When the cam 232 rotates under the drive of the connected motor, it can drive the adapter plate 233 to move left and right, causing at least two push plates 234 to move left and right and insert into or retract from the corresponding first carrier 22, thereby pushing the cigarette 300 in the first carrier 22 into the second carrier 25. Each carrier plate 231 is also provided with at least two linear slide rails 2311, specifically arranged in the left-right direction. The adapter plate 233 slides on the linear slide rails 2311 of the corresponding carrier plate 231, thereby achieving smooth movement in the left-right direction. Furthermore, the number of rotations of the cam 232 corresponds to the number of reciprocating motions of the corresponding adapter plate 233; that is, for every rotation of the cam 232, the push plate 234 reciprocates once. Of course, the two pushing devices 23 can also share the same carrier plate 231, further simplifying the structure.

[0051] Back Figure 9 The transfer device 24 includes a linear module 241 arranged in a front-to-back direction and a receiving plate 242 connected to the output end of the linear module 241. At least two second carriers 25 are arranged at equal intervals on the receiving plate 242, and the distance between each second carrier 25 corresponds to the distance between each push plate 234 to achieve one-to-one material receiving. In addition, a CCD camera 243 for detection is also mounted on the upper side of the linear module 241 for detecting and identifying the number and orientation of cigarettes 300 in the first carrier 22. In some embodiments, the output end of the flat circular conveyor line 21 is also provided with a rejection device 26 capable of linear reciprocating motion in the left-right direction, for pushing all cigarettes 300 in the first carrier 22 containing defective products together to detach from the first carrier 22. Further, the input end of the flat circular conveyor line 21 is also provided with a cigarette receiving device 27, which uses a detector 271 that reciprocates linearly in the left-right direction to detect the cigarette feeder 400 (see Figure 2The cigarettes 300 provided are inspected upon arrival. As the cigarettes 300 enter the first carrier 22, the tail end and / or top end of each cigarette 300 are pressed and positioned by a pressure plate that moves in a straight reciprocating motion in the up and down direction.

[0052] See Figures 11 to 17 The filling machine 30 also includes several third carriers 32 evenly distributed on the vertical circular conveyor line 31, and a pushing device 33, a box-feeding device 34, and a lid-closing device 35 arranged sequentially along the conveying direction of the vertical circular conveyor line 31. Another pushing device 33 is also provided on the opposite side of the lid-closing device 35. The third carriers 32 are provided with a placement area 32a for placing the opened cigarette box 200, and positioning members 321 and swinging members 322 arranged at the edge of the placement area 32a. The pushing device 33 drives the positioning member 321 to move or rotate through the pushing member 331, while also driving the swinging member 322 to rotate. This allows the moving or rotating positioning member 321 to fix or release the cigarette box 200 placed in the placement area 32a, and the rotating swinging member 322 to press and position or release the lining paper 204 and lid 202 of the cigarette box 200. The cigarette box insertion device 34 uses the opening mechanism 341 to adsorb and fix the liner 203 of the cigarette box 200, and the filling mechanism 342, which is arranged opposite to the opening mechanism 341, inserts the cigarettes 300 conveyed by the cigarette feeder 20 in groups into the cigarette box 200 at an angle. The lid closing device 50 is used to flip the lid 202 and the liner 204 of the cigarette box 200 containing the cigarettes 300 toward the box body 201, so as to close the lid onto the box body 201 and the liner 203, thereby completing the corresponding cigarette insertion operation. The vertical circular conveyor line 31 transports the third carriers 32 in groups of at least two. The number of pushing components 331, opening mechanisms 341, filling mechanisms 342, and closing devices 35 in each pushing device 33 corresponds to the number of third carriers 32 transported in the same group. This allows at least two third carriers 32 to be transported to the corresponding pushing device 33, box-filling device 34, and closing device 35 each time, enabling each device to operate on at least two cigarette boxes 200 simultaneously, effectively improving production efficiency. For example, if the vertical circular conveyor line 31 transports the third carriers 32 in groups of four, correspondingly, each pushing device 33 has four pushing components 331, opening mechanisms 341, filling mechanisms 342, and closing devices 35, thus achieving the filling operation of cigarettes 300 in four cigarette boxes 200 each time.

[0053] See Figure 11Specifically, the vertical circular conveyor line 31 includes a waist-shaped vertical plate 311 mounted on a bracket 102, an annular guide rail 312 surrounding the periphery of the waist-shaped vertical plate 311, two sprockets 313 arranged at the front and rear ends of the waist-shaped vertical plate 311, a chain 314 wound around the two sprockets 313, and a servo motor 315 mounted on the waist-shaped vertical plate 311 for driving the two sprockets 313 to rotate. Each third carrier 32 is slidably mounted on the annular guide rail 312 at equal intervals and is connected to the chain 314. When the two sprockets 313 rotate under the drive of the servo motor 315 to drive the chain 314 to rotate, each third carrier 32 slides on the annular guide rail 12 accordingly.

[0054] Combination Figures 14 to 16The third carrier 32 also includes a carrier plate 323, which has a square placement area 32a and two limiting blocks 324 protruding from the edges of adjacent sides of the placement area 32a. The positioning member 321 includes a first clamping plate 3211 and a second clamping plate 3212 slidably disposed at the edges of the other two adjacent sides of the placement area 32a. The first clamping plate 3211 has a roller 3213 at its edge, and the second clamping plate 3212 has a roller 3214 at its edge. The swing member 322 is rotatably mounted at the edge of the placement area 32a and is linked to the second clamping plate 3212 through a gear and rack structure arranged at the bottom of the carrier plate 323, so that it can rotate into the placement area 32a or exit from the placement area 20a under the drive of the sliding second clamping plate 3212. Correspondingly, the pusher 331 includes a pusher column 3311 and a pusher block 3312 that can move linearly in the vertical direction. The pusher column 3311 and the pusher block 3312 are respectively arranged with the roller 3213 and the roller 3214. The pushing surface 3313 on the pusher column 3311 that abuts against the roller 3213 is an inclined surface or an arc surface. Similarly, the pushing surface 3314 on the pusher block 3312 that abuts against the roller 3214 is also an inclined surface or an arc surface. When the pusher column 3311 and the pusher block 3312 move linearly in the up and down direction, the pusher surface 3313 pushes the roller 3213 and the pusher surface 3314 pushes the roller 3214, causing the first clamping plate 3211 and the second clamping plate 3212 to slide on the carrier plate 323. When they move closer to or away from the two limiting blocks 324 on the opposite side, the cigarette box 200 in the placement area 32a can be clamped and fixed or released. The swinging member 322 then rotates into the placement area 32a or exits from the placement area 32a under the drive of the sliding second clamping plate 3212, so as to press against the liner paper 204 and the box cover 202 to prevent them from rotating. Furthermore, reset springs 326 are respectively arranged between the first clamping plate 3211 and the carrier plate 323 and between the second clamping plate 3212 and the carrier plate 323, for constantly driving the first clamping plate 211 and the second clamping plate 3212 to move linearly towards the placement area 20a to reset. Specifically, the gear and rack structure includes a gear 327 sleeved on the bottom end of the swing member 322 and a rack 328 disposed on the bottom end of the second clamping plate 3212 and meshing with the gear 327. Specifically, the pushing device 33 also includes a cam 332, a servo motor 333 driving the cam 332 to rotate, a follower plate 334 slidably connected to the cam 332, and a mounting frame 335 that moves linearly back and forth in the up and down direction under the drive of the follower plate 334, and each pushing member 331 is equally spaced on the mounting frame 335.A vertical plate 336 is mounted on the waist-shaped vertical plate 311. A mounting bracket 335 is slidably mounted on the vertical plate 336 in the vertical direction. A waist-shaped sliding groove 3341 is provided on the follower plate 334 connected to the mounting bracket 335. A roller 3321 is protruding from the edge of the cam 332 on the side opposite to the follower plate 334. The roller 3321 is slidably engaged in the waist-shaped sliding groove 3341. When the cam 332 rotates under the drive of the servo motor 333, it drives the follower plate 334 to reciprocate in the vertical direction, so that each pusher 331 moves up and down accordingly.

[0055] See Figure 17The bag opening mechanism 341 includes a positioning plate 3417 and a vacuum suction cup 3418 arranged vertically and vertically above the vertical circular conveyor line 31. The positioning plate 3417 is used to press and fix the cigarette box 200 from above, and the vacuum suction cup 3418 is used to adsorb and fix the liner bag 203 from above. The vacuum suction cup 3418 is located above the positioning plate 3417, and the vacuum suction cup 3418 can move synchronously with the positioning plate 3417 in the vertical direction, so that when the positioning plate 3417 approaches the box body 201, it also approaches the liner bag 203. It can also move independently relative to the positioning plate 3417, so that the liner bag 203 can be pulled upward when the box body 201 is fixed. Specifically, the bag opening mechanism 341 also includes a support base 3411, a mounting base 3412 slidably disposed on the lower ends of the support base 3411 in the left-right direction, a rack 3413 mounted on the bottom of the mounting base 3412, a gear 3414 meshing with the rack 3413, and a lower lifting member 3415 and an upper lifting member 3416 slidably disposed on the upper left and upper right ends of the support base 3411 in the up-down direction. The front and rear opposite sidewalls of the mounting base 3412 are respectively equipped with… The upper lifting member 3415 has upper limit grooves 34a and lower limit grooves 34b with different shapes and arranged at different heights. The front and rear bottom ends of the lower lifting member 3415 are slidably engaged in the two lower limit grooves 34b via rollers 3419. The front and rear bottom ends of the upper lifting member 3416 are slidably engaged in the two upper limit grooves 34a via rollers 3419. The positioning plate 3417 is connected to the top side of the lower lifting member 3415, and the vacuum suction cup 3418 is connected to the top side of the upper lifting member 3416. The top of the lower lifting member 3415 is higher than the top of the support base 3411 but lower than the top of the upper lifting member 3416, so that the vertically moving positioning plate 3417 can contact the cigarette box 200 before the vacuum suction cup 3418. Preferably, there is only one servo motor 343 used to drive the gears 3414 of each bag opening mechanism 341 to rotate, thereby simplifying the structure and reducing costs. In this case, each gear 3414 is arranged sideways and is sleeved on the output shaft 3431 of the servo motor 343 at equal intervals, so as to mesh with the racks 3413 at the bottom of each mounting base 3412. Specifically, the front groove section 34b1 of the lower limiting groove 34b is an inclined groove and the rear groove section 34b2 is a flat groove. The upper limiting groove 34a has a front groove section 34a1 and a rear groove section 34a2 with different inclination directions. The intersection of the front groove section 34b1 and the rear groove section 34b2 of the lower limiting groove 34b and the intersection of the front groove section 34a1 and the rear groove section 34a2 of the upper limiting groove 34a are located on the same axis, so that the upper limiting groove 34a can provide a guiding force in one more direction.

[0056] In actual operation: the gears 3414 of each bag opening mechanism 341 rotate synchronously under the drive of the servo motor 343, and the racks 3413 move in the left and right directions, thereby driving each mounting base 3412 to slide left and right on the corresponding support base 3411. This causes the upper lifting member 3415 and the lower lifting member 3416 of each bag opening mechanism 341 to slide on the mounting base 3412 under the guiding force of the corresponding upper limit groove 34a and lower limit groove 34b, thereby driving each positioning plate 3417 and each vacuum suction cup 3418 to perform lifting and lowering actions, so as to move closer to or away from the cigarette box 200 on the corresponding third carrier 32. When the mounting base 3412 moves to the left, causing the positioning plate 3417 to move down and press against the body 201 of the cigarette box 200 on the third carrier 32, the vacuum suction cup 3418 also moves down synchronously to suction the liner 203. Then, as the mounting base 3412 continues to move to the left, under the guiding force of the lower limit groove 34b and the upper limit groove 34a, which have different shapes, the positioning plate 3417 remains stationary in the pressing position, while the vacuum suction cup 3418... Then, the vacuum suction cup 3418 moves upward in the opposite direction to pull the adsorbed liner 203 upward and keep it in a fully open state, so as to facilitate the insertion of the group of cigarettes 300. Then, as the mounting base 3412 moves to the right in the opposite direction, the vacuum suction cup 3418 first moves downward to release the pull on the liner 203. As the mounting base 3412 continues to move to the right to reset, the vacuum suction cup 3418 and the positioning plate 3417 move upward synchronously to reset, thereby releasing the pressure and fixation on the box body 201.

[0057] See Figure 11 and Figure 12The filling mechanism 342 includes a robot arm 3421, a filling seat 3422 connected to the output end of the robot arm 3421, a first cylinder 3423 and a second cylinder 3424 installed at the top and bottom opposite ends of the filling seat 3422, a third cylinder 3425 connected to the output end of the first cylinder 3423, a second gripper 3426 connected to the output end of the second cylinder 3424, a first gripper 3427 connected to the output end of the third cylinder 3425, and a pusher plate 3428 connected to the bottom of the second gripper 3426 or on the second cylinder 3424 and located on the opposite left side of the second gripper 3426. The first gripper 3427 and the second gripper 3426, driven by the third cylinder 3425 and the second cylinder 3424 respectively, open and close to grip the ends of the assembled cigarette sticks 300. The first gripper 3427 also moves vertically under the drive of the first cylinder 3423 to move closer to or further away from the cigarette sticks 300. The pusher plate 3428 pushes the tail end of the cigarette stick 300, which is essentially inserted into the cigarette case 200, to push the cigarette stick 300 until it is fully inserted into the cigarette case 200. When retrieving cigarettes, under the action of the robotic arm 3421, the third cylinder 3425, and the second cylinder 3424, the first gripper 3427 and the second gripper 3426 clamp the beginning and end of the cigarette sticks 300 in a group. When loading cigarettes, driven by the robotic arm 3421, the cigarette sticks 300 enter the cigarette box 200 at an angle. As the cigarette sticks 300 continue to enter, the first gripper 3427 releases its grip on the cigarette sticks 300 and moves upward under the drive of the first cylinder 3423 to make room. At this time, driven by the robotic arm 3421, the second gripper 3426 continues to insert the cigarette sticks 300 into the cigarette box 200. When only the end of the cigarette sticks 300 is not fully inserted, the second gripper 3426 correspondingly releases its grip on the cigarette sticks 300 and makes room, and the pusher plate 3428 pushes the cigarette sticks 300 completely into the cigarette box 200.

[0058] See Figure 11 and Figure 13 The lid-closing device 35 includes a base 351, a motor 352 mounted on the base 351, and a flipping rod 353 connected to the output end of the motor 352. The flipping rod 352 rotates under the drive of the motor 352 to flip the lid 202 onto the box body 201. At least two lid-closing devices 35 are arranged at equal intervals on opposite right sides of the vertical circular conveyor line 31. After the pusher device 33, which is arranged on opposite left sides of the vertical circular conveyor line 31, releases the fixing of the lining paper 204 and the lid 202 of the cigarette box 200 on each third carrier 32, each lid-closing device 35 operates synchronously, simultaneously performing lid-closing operations on the cigarette boxes 200 on each of the third carriers 32 in the same group, effectively improving efficiency.

[0059] See below. Figures 1 to 17The working principle of the automatic cigarette packing production line 100 of the present invention will be explained as follows:

[0060] Under the instruction of the control system, the two cigarette box feeding machines 10 operate, and their belt conveyor devices 11 transport the cigarette boxes 200 to be opened, which are conveyed by the corresponding docking machine 50 or manually fed, in groups of four to their respective transport devices 12. The front picking and delivering mechanism 121 of the transport device 12 simultaneously picks up four cigarette boxes 200 each time and places them onto the four opening units 13a of the corresponding opening device. During the picking and delivering process, the bottom camera 14 monitors the front and back of the cigarette boxes 200. The four cigarette boxes 13a then open the boxes by flipping the lids 202 of their respective boxes away from the box body 201, and flipping the liner paper 204 away from the box body 201 to avoid obstruction, thus exposing the liner bag 203 inside the box body 201 and keeping it open. The rear pick-up and delivery mechanism 122 of the conveying device 12 then removes the cigarette boxes from the four boxes 13a. After the cigarette box 200 is opened, it is simultaneously sucked up and rotated 90° before being placed on the four third carriers 32 at the input end 31a of the corresponding filling machine 30. During this process, the four pushing members 31 of the pushing device 33 located at the input end 31a of the filling machine 30 move upward simultaneously to drive the positioning members 321 in each third carrier 32 to move synchronously to make way, and also drive the swinging members 322 in each third carrier 32 to rotate synchronously to make way, thereby facilitating the subsequent pick-up and delivery mechanism 122. Four opened cigarette boxes 200 are placed on four third carriers 32. Then, as the four pushers 331 move down synchronously, the positioning members 321 and the swinging members 322 reset to clamp the cigarette boxes 200 and press against the liner paper 204 and the box lid 202. After that, each filling machine 30 conveys the four third carriers 32 carrying the cigarette boxes 200 at its input end 31a toward its respective filling end 31b through its own vertical circular conveyor line 31.

[0061] At the same time, the cigarette feeding machine 20 also operates under the instruction of the control system. Its flat circular conveyor line 21 conveys the first carriers 22 in groups of four to the cigarette feeding machine 400. The cigarette feeding machine 400 pushes the cigarettes 300 in groups of 20 into each of the first carriers 22. Then, when each of the first carriers 11 carrying cigarettes 300 passes through the two pushing devices 23 in groups, the two pushing devices 23 move back and forth in a straight line in the left and right direction to push the cigarettes 300 in the corresponding four first carriers 22 into the four second carriers 25 of the corresponding transfer device 24. The transfer device 24 moves back and forth in a straight line to simultaneously convey the cigarettes 300 in the four second carriers 25 toward the filling end 31b of the corresponding filling machine 30.

[0062] Subsequently, the four opening mechanisms 341 of the filling end 31b of each filling machine 30 operate, simultaneously pressing and fixing the boxes 201 of the four cigarette boxes 200 in the same group, and adsorbing and fixing the lining bags 203 of each cigarette box 200; next, the four filling mechanisms 342 of each filling machine 30 operate, simultaneously picking up the cigarettes 300 from the corresponding four second carriers 25 and inserting them obliquely into the cigarette boxes 200 of the four third carriers 32. After each group of cigarettes 300 is completely loaded into each cigarette box 202, each filling mechanism 342 and each opening mechanism 341 operate in opposite directions to reset; then, the cigarette boxes 200 of the four third carriers 32 are filled with cigarettes. A set of four third carriers 32 of the cigarette case 200 are conveyed to the output end 31c. The pusher 33 located there is activated. By moving the four pushers 331 upward, the positioning members 321 of the four third carriers 32 in the same group are moved, and the swinging members 322 are rotated to release the positioning of each cigarette case 200, its liner 204 and the lid 202. Then, the four lid devices 35 are activated simultaneously to flip the lid 202 and the liner 204 of the cigarette case 200 on the third carriers 32 in the same group upward so that they are closed on the box body 201 and the liner 203 to complete the lid operation.

[0063] Finally, the picking robot 46 moves the cigarette boxes 200 at the output end 31c in groups of four to the vertical circular conveyor line 41. The four pushing parts 31 of the pushing device 33, the positioning parts 21 and the swinging parts 22 on the third carrier 32 are then reset. The labeling mechanism 42 then labels the four cigarette boxes 200 at the same time and detects and identifies the labeled cigarette boxes 200. The qualified products are transferred to the belt conveyor mechanism 44 for conveying and unloading, and the unqualified products are transferred to the waste bin 45 for unloading.

[0064] By repeatedly performing the above operations, the processes of opening and feeding cigarette boxes, feeding cigarettes, inserting cigarettes into boxes, and labeling can be automated.

[0065] Compared with the prior art, the automatic cigarette packing production line 100 of the present invention feeds cigarettes 300 to two filling machines 30 arranged on opposite sides of the cigarette feeder 20, and feeds cigarette boxes 200 to the two filling machines 30 by two cigarette box feeders 10 arranged on the sides of the two filling machines 30 respectively. The two filling machines 30 respectively fill the cigarettes 300 provided by the cigarette feeder 20 into the cigarette boxes 200 provided by the two cigarette box feeders 10. The entire production line has a simple overall structure, reasonable and compact layout, effectively reduces the footprint, and has high cigarette packing efficiency and high packing accuracy, which is suitable for meeting the needs of automated production lines. The cigarette box feeding machine 10 opens the lids 202 and liner 204 of at least two cigarette boxes 200 each time, and simultaneously transfers the two opened cigarette boxes 200 to the corresponding filling machines 30. The two filling machines 30 receive and transport the cigarette boxes 200 through a vertical circular conveyor line 31, so that the cigarette boxes 200 are sequentially transferred from the input end 31a of the vertical circular conveyor line 31 through its filling end 31b and output end 31c. Meanwhile, the cigarette feeding machine 20 feeds a certain number of cigarettes 300 through a horizontal circular conveyor line 21. The cigarettes are fed in groups to the filling ends 31b of the two filling machines 30, so that the two filling machines 30 simultaneously insert the groups of cigarettes 300 into the corresponding cigarette boxes 200 at their respective filling ends 31b. The two filling machines 30 also flip the lining paper 204 and the box lid 202 of each cigarette box 200 at their respective output ends 31c so that they are fastened to the lining bag 203 and the box body 201 of the cigarette box 200. Thus, the cigarettes 300 in multiple cigarette boxes 200 can be filled simultaneously each time, further improving the efficiency of cigarette packing.

[0066] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A cigarette automatic cartoning line for filling cigarettes into cartons, characterized in that, The cigarette automatic boxing production line comprises a cigarette feeder, two filling machines arranged on the left and right opposite sides of the cigarette feeder, and two cigarette case feeders arranged on the sides of the two filling machines respectively, the two cigarette case feeders open the covers and the liners of at least two cigarette cases at a time respectively, and synchronously transfer the opened at least two cigarette cases to the input ends of the vertical circular conveying lines of the corresponding filling machines, the filling machines convey the cigarette cases received at the input ends to the filling ends and the output ends of the vertical circular conveying lines in groups of at least two in sequence, the cigarette feeder conveys the cigarettes in groups of a certain number to the filling ends of the two filling machines through the horizontal circular conveying line, the filling machines synchronously insert at least two groups of cigarettes into the corresponding at least two cigarette cases at the respective filling ends, and the filling machines further turn over the liners and the covers of the cigarette cases filled with cigarettes at the respective discharge ends to be buckled on the liner bags and the case bodies to complete the cover operation.

2. The cigarette automatic boxing production line according to claim 1, characterized in that, The cigarette case feeder comprises opening devices arranged at intervals along the left and right directions, the opening devices comprise at least two opening units arranged at intervals along the front and back directions, the opening units are used for turning over the covers of the received cigarette cases in the direction away from the case bodies to open, and turning over the liners of the cigarette cases in the direction away from the case bodies to open, the opening unit comprises a carrier, a gear rack mechanism arranged at the bottom side end of the carrier, a cam mechanism connected to the output end of the gear rack mechanism, a bracket connected to the output end of the cam mechanism and close to the carrier, and an opening cover mechanism, a turning mechanism and a shaping mechanism arranged at the top side end of the carrier, the carrier is sequentially provided with a feeding position, an opening cover position, a turning position, a shaping position and a discharging position, the opening cover mechanism, the turning mechanism and the shaping mechanism are arranged at the opening cover position, the turning position and the shaping position, the cam mechanism and the gear rack mechanism correspondingly drive the bracket to make linear reciprocating motion in the up and down direction and the front and back direction, so that the bracket lifts up and moves the cigarette cases at the feeding position, the opening cover position, the turning position and the shaping position to the corresponding opening cover position, the turning position, the shaping position and the discharging position, the opening cover mechanism and the turning mechanism turn over the covers and the liners of the cigarette cases away from the case bodies to open, and the shaping mechanism is used for pressing and shaping the cigarette cases from above to keep the cigarette cases in the opened state of the covers and the liners. Two labeling machines are arranged at the output ends of the two filling machines respectively, the labeling machines receive and convey the cigarette cases filled with cigarettes through the vertical circular conveying lines respectively, and paste labels on the cigarette cases through the labeling mechanisms during the conveying process, and detect, identify and discharge the labeled cigarette cases through the shunting mechanisms.

3. The cigarette automatic boxing production line according to claim 1, wherein, The cigarette case feeding machine further comprises a belt conveying device arranged at intervals along the left-right direction and a carrying device arranged between the belt conveying device and the case opening device, the belt conveying device conveying the cigarette cases to be opened in groups of at least two to the carrying device, the carrying device moving back and forth between the belt conveying device, the case opening device and the filling machine to move the cigarette cases conveyed in groups to the case opening units one by one, and the carrying device further moving the opened cigarette cases on the case opening units to the filling machine.

4. The cigarette automatic boxing production line according to claim 3, characterized in that, The belt conveying device comprises a belt conveying mechanism, a positioning table opposite to the belt conveying mechanism on the side close to the case opening device, at least two horizontal push blocks and at least two vertical push blocks arranged at equal intervals on the left and right opposite sides of the positioning table in the front-back direction, the belt conveying mechanism conveying the cigarette cases to be opened with the case covers upwards and conveying at least two cigarette cases to at least two horizontal push blocks one by one each time, each horizontal push block moving linearly back and forth in the left-right direction to push at least two cigarette cases on the belt conveying mechanism to the positioning table one by one, and each vertical push block moving linearly back and forth in the front-back direction to push the cigarette cases on the positioning table to a position convenient for the carrying device to take and deliver.

5. The cigarette automatic boxing production line according to claim 3, wherein, The carrying device comprises a front taking and delivering mechanism and a rear taking and delivering mechanism arranged at intervals along the left-right direction, the front taking and delivering mechanism taking and delivering at least two cigarette cases on the belt conveying device to at least two case opening units of the case opening device one by one each time through at least two clamps arranged at equal intervals in the front-back direction, and identifying the front and back of the cigarette cases through a bottom camera arranged at each case opening unit during the taking and delivering process, and the rear taking and delivering mechanism sucking the opened cigarette cases from the corresponding case opening units and placing them on the filling machine after rotating 90° through at least two suction cups arranged at equal intervals in the front-back direction each time.

6. The cigarette cartoning production line according to claim 1, wherein The cigarette rod feeding machine further comprises a plurality of first carriers uniformly arranged on the flat annular conveying line, two pushing devices arranged at the left and right opposite sides of the opposite rear end of the flat annular conveying line in a staggered manner, and two transfer devices arranged one by one on the opposite outer sides of the flat annular conveying line and the two pushing devices, each of the two transfer devices being arranged at equal intervals with at least two second carriers, the first carriers being used for receiving groups of cigarette rods and conveying the cigarette rods on the flat annular conveying line, the two pushing devices being used for moving linearly back and forth in the left-right direction to push the cigarette rods in at least two first carriers passing through to at least two second carriers of the corresponding transfer device, and the two transfer devices being used for moving linearly back and forth in the front-back direction to transfer the cigarette rods in the second carriers to the filling machine.

7. The cigarette cartoning production line according to claim 1, wherein The filling machine further comprises a plurality of third carriers uniformly arranged on the vertical annular conveying line, a pushing device, a box feeding device and a cover closing device arranged in sequence along the conveying direction of the vertical annular conveying line, and another pushing device arranged on the opposite side of the cover closing device, the third carrier is provided with a placement area for accommodating a box after opening and a positioning member and a swing member arranged at the edge of the placement area, the pushing device drives the positioning member to move or rotate through a pushing member, and also drives the swing member to rotate, so that the positioning member can fix or release the box in the placement area, and the swing member can press and position or release the lining paper and the cover of the box, the box feeding device adsorbs and fixes the lining bag of the box through a bag opening mechanism, and inserts a group of cigarettes into the box in a whole group and an inclined manner through a filling mechanism arranged opposite to the bag opening mechanism, and the cover closing device is used for turning the cover and the lining paper of the box filled with cigarettes towards the box body to cover the box body and the lining bag.

8. The cigarette automatic boxing production line according to claim 7, characterized in that, The vertical annular conveying line conveys the third carriers in groups of at least two, the number of pushing members in each pushing device, the number of bag opening mechanisms, the number of filling mechanisms and the number of cover closing devices correspond to the number of carriers conveyed in the same group.

9. The cigarette automatic boxing production line according to claim 7, characterized in that, The third carrier further comprises a carrier plate provided with a square placement area and two limiting blocks protruding from the edges of two adjacent sides of the placement area, the positioning member comprises a first clamping plate and a second clamping plate slidingly arranged at the edges of the other two adjacent sides of the placement area, and each edge of the first clamping plate and the second clamping plate is provided with a roller, the swing member is rotatably arranged at the edge of the placement area and is connected to the second clamping plate through a gear and rack structure arranged at the bottom of the carrier plate, so as to rotate into or out of the placement area under the driving of the sliding second clamping plate, the pushing member comprises a pushing column and a pushing block corresponding to the two rollers and arranged in a one-to-one correspondence and capable of moving linearly in the up-down direction, and the abutting surfaces of the pushing column and the pushing block corresponding to the rollers are inclined surfaces or arc surfaces.

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