Cigarette packet layered subpackaging and visual inspection equipment after cigarette carton unpackaging

Abstract

The invention relates to a cigarette packet layering subpackaging and visual inspection device after cigarette carton unpackaging, which comprises a cigarette packet layering lifting device, a cigarette packet subpackaging longitudinal conveying device and a cigarette packet turn-over transverse conveying device, the cigarette packet layering lifting device comprises a cigarette packet bin, an up-and-down movement mechanism, a fixed support and a horizontal movement mechanism, and an inlet layering guide plate is arranged in the cigarette packet bin; the inlet layering guide plate is located on the upper layer of the double-layer cigarette packet, when the double-layer cigarette packet is pushed into the cigarette packet bin through upstream cigarette unpacking equipment, the bottom layer of cigarette packet does linear motion in the pushing direction, and the upper layer of cigarette packet is guided by the inlet layering guide plate to achieve position dislocation of the upper layer and the lower layer. And then the tobacco bales sequentially pass through the tobacco bale sub-packaging longitudinal conveying device and the tobacco bale turn-over transverse conveying device, so that layered sub-packaging of the tobacco bales is completed, and six-side visual inspection is carried out. The device has the advantages that layering of double-layer cigarette packets and subpackaging of single-layer cigarette packets are achieved through structural improvement, and the problem that the failure rate is high in the layering subpackaging process is solved.

Description

Technical Field

[0001] The present invention relates to the field of sampling inspection and testing of finished cigarettes, and particularly to a cigarette packet layer separation, sub-packaging and visual inspection device after unpacking of cartons of cigarettes. Background Art

[0002] In the modern tobacco industry, relatively stable and reliable quality inspection means have been formed in various links of cigarette production. Machines and manual labor each perform their own functions and shoulder the heavy responsibility of quality control. Under the background of modernization and high speed, some manual inspection means have problems such as low efficiency, non-objective inspection, and high labor intensity, resulting in problems of production constraints between upstream and downstream. At present, before the cartons of cigarettes are packed, a final inspection close to consumers is still required, that is, the quality sampling inspection of the cigarette packets inside the cartons after packaging. At present, most of this process relies on manual inspection. This process requires manual removal of the outer packaging of the cartons of cigarettes, and then the cigarette packets inside the packaging are taken out, and the cigarette packets are specifically inspected manually.

[0003] At present, there has already been work on unpacking cartons of cigarettes and inspecting the cigarette packets after unpacking, but there are still many problems. Due to the adsorption problem between the oil-proof papers on the outer surface of the cigarette packets and the single intervention during the layer separation and sub-packaging process, the layer separation and sub-packaging work cannot be well completed, and there is a certain failure. In addition, in terms of visual inspection, the six-sided inspection of the cigarette packets has not been truly achieved. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a cigarette packet layer separation, sub-packaging and visual inspection device after unpacking of cartons of cigarettes, which has a simple structure and can realize layer separation and sub-packaging of double-layer cigarette packets. This device can also realize the six-sided inspection of cigarette packets.

[0005] The cigarette packet layer separation, sub-packaging and visual inspection device provided by the present invention has the following technical solution:

[0006] It includes a cigarette packet layer-lifting device (1), a cigarette packet sub-packaging longitudinal conveying device (2), and a cigarette packet turning-over transverse conveying device (3). The cigarette packet layer-lifting device (1) includes a cigarette packet bin (10), a vertical movement mechanism (11), a fixed support (12), and a horizontal movement mechanism (13). The fixed support (12) is stationary. The vertical movement mechanism (11), the horizontal movement mechanism (13), and the cigarette packet bin (10) are installed on the fixed support (12). An inlet layer guiding plate (14) is arranged in the cigarette packet bin (10). The inlet layer guiding plate (14) is located at the upper layer position of the double-layer cigarette packet (4). When the double-layer cigarette packet (4) is pushed into the cigarette packet bin (10) by an upstream strip cigarette unpacking device, the bottom-layer cigarette packet (4) moves in a straight line along the pushing direction. Under the guiding action of the inlet layer guiding plate (14), the upper-layer cigarette packet (4) realizes the position dislocation between the upper and lower layers. Then, it sequentially passes through the cigarette packet sub-packaging longitudinal conveying device (2) and the cigarette packet turning-over transverse conveying device (3) to complete the layer separation and sub-packaging of the cigarette packets and conduct six-sided vision inspection.

[0007] Further, after the double-layer cigarette packet (4) completely enters the cigarette packet bin (10), the vertical movement mechanism (11) drives the cigarette packet bin (10) to descend. After descending to the bottom of the stroke, the horizontal movement mechanism (13) extends horizontally. The horizontal movement mechanism (13) contacts the lower layer of the double-layer cigarette packet (4) and pushes the lower-layer cigarette packet (4) out from the cigarette packet layer outlet (15). After the horizontal movement mechanism (13) retracts, the upper-layer cigarette packet (4) descends to the lower layer by gravity and can be pushed out during the second push.

[0008] Further, the cigarette packet sub-packaging longitudinal conveying device (2) includes a single-layer cigarette packet access conveying section (20), a single-layer cigarette packet sub-packaging conveying section (21), and a first cigarette packet three-sided vision inspection group (22). The single-layer cigarette packet access conveying section (20) is connected to the single-layer cigarette packet sub-packaging conveying section (21). The first cigarette packet three-sided vision inspection group (22) is arranged on the single-layer cigarette packet sub-packaging conveying section (21).

[0009] Further, the single-layer cigarette packet access conveying section (20) includes a first conveyor belt (200), a first guiding frame (201), a first support structure (202), and a cigarette packet presence / absence detection sensor (203). The first support structure (202) is stationary. The first conveyor belt (200), the first guiding frame (201), and the cigarette packet presence / absence detection sensor (203) are all fixed on the first support structure (202). The single-layer cigarette packet access conveying section (20) is used for the access and forward conveying of the single-layer cigarette packet (4) pushed out by the cigarette packet layer-lifting device (1). When the cigarette packet (4) is pushed in, the presence / absence of the cigarette packet (4) is judged by the cigarette packet presence / absence detection sensor (203). It can be pushed in when no cigarette packet (4) is detected, and then conveyed. The first guiding frame (201) is used for guiding the cigarette packet (4), and the first conveyor belt (200) is used for the forward conveying of the cigarette packet (4).

[0010] Furthermore, the single-layer cigarette packet sub-packaging conveying section (21) includes a second conveyor belt (210), a second guide frame (211), a second support structure (212), and a differential structure. The second support structure (212) is fixed, and the second conveyor belt (210), the second guide frame (211), and the differential structure are all fixed to the second support structure (212). The single-layer cigarette packet sub-packaging conveying section (21) is used for the sub-packaging work and forward movement of the incoming single-layer cigarette packets (4). The second conveyor belt (210) is used for the forward conveying of the cigarette packets (4), the second guide frame (211) is used for guiding during the conveying of the cigarette packets (4), and the differential structure is used for the sub-packaging of the single-layer cigarette packets (4). The differential structure includes a large and small pulley set (213), a first power source (214), and a differential roller set (215). The small pulley in the large and small pulley set (213) provides power for the single-layer cigarette packet sub-packaging conveying section (21), and the large pulley provides power for the single-layer cigarette packet access conveying section (20). The differential speed of the front and rear conveying sections is achieved through the speed ratio of the large and small pulleys, realizing the sub-packaging of the cigarette packets (4). There is a height difference between the transition section of the single-layer cigarette packet access conveying section (20) and the single-layer cigarette packet sub-packaging conveying section (21).

[0011] Furthermore, the first three-side visual inspection group of cigarette packets (22) includes a camera lens group (220), a top light source (221), an auxiliary light source (222), a bottom diffuser (223), a bottom trigger sensor (224), and a support (225). The support (225) plays a fixing role. The camera lens group (220) is arranged on the top and both side faces in the advancing direction of the cigarette packet (4) and is responsible for taking pictures. The top light source (221) and the bottom diffuser (223) are used to provide illumination for the three sides of the cigarette packet (4) to be inspected. The diffuser reflects the light of the top light source (221) to the two side faces of the cigarette packet (4) to be inspected. The auxiliary light source (222) is used for illuminating the defects of the cellophane on the top surface of the cigarette packet (4). The triggering of the camera lens group (220) is set with a certain time delay after the first trigger. The bottom trigger sensor (224) is used to detect the cigarette packet (4) reaching the photographing position and provide a trigger signal for the camera lens group (220).

[0012] Furthermore, the cigarette packet turning and transverse conveying device (3) includes a turning and pushing mechanism (30), a cigarette packet transverse conveying device (31), a second three-side visual inspection group of cigarette packets (32), a cigarette packet outlet, and a rejection device (33). The turning and pushing mechanism (30) is connected to the cigarette packet transverse conveying device (31) and is used to turn the cigarette packet. The second three-side visual inspection group of cigarette packets (32) is arranged on the cigarette packet transverse conveying device (31), and the cigarette packet outlet and the rejection device (33) are located at the end of the cigarette packet turning and transverse conveying device (3).

[0013] Further, the turning and pushing mechanism (30) includes a pushing synchronous belt with a stop block (300), a fixing frame (301), a second power source (302), a cigarette pack arrival sensor (303), and a turning slideway (304). The fixing frame (301) is used for fixing the whole mechanism. The second power source (302) provides motive power for the synchronous belt with a stop block. When the sub-packaged cigarette pack (4) reaches the end position and is detected by the cigarette pack arrival sensor (303), the second power source (302) drives the pushing synchronous belt with a stop block (300) to perform intermittent movement, pushing the cigarette pack into the turning slideway (304). The cigarette pack (4) reaches the lower cigarette pack horizontal conveying device (31) through the arc-shaped slideway to complete the turning work of the cigarette pack (4), preparing for the subsequent image acquisition of the bottom of the cigarette pack (4).

[0014] Further, the cigarette pack horizontal conveying device (31) is a conveying belt including a guiding frame.

[0015] Further, the structure of the second three-sided visual inspection group (32) of the cigarette pack is the same as that of the first three-sided visual inspection group (22) of the cigarette pack, and is used for photographing images of the other three sides of the cigarette pack (4).

[0016] Further, the cigarette pack outlet and rejection device (33) includes a rejection guiding port (330), a rejection cigarette pack sensor (331), a rejection solenoid valve (332), and a rejection nozzle (333). When the defective cigarette pack (4) reaches the predetermined position and is detected by the rejection cigarette pack sensor (331), the rejection solenoid valve (332) is activated, and the cigarette pack (4) is blown to the rejection guiding port (330) through the nozzle connected to the solenoid valve. The qualified cigarette packs (4) flow into the downstream equipment.

[0017] The implementation of the present invention includes the following technical effects:

[0018] The cigarette pack layer separation, sub-packaging, and visual inspection equipment after unpacking a carton of cigarettes of the present invention performs multiple interventions on the double-layer cigarette packs connected after unpacking a carton of cigarettes (the first intervention by the inlet layer separation guiding plate and the pushing intervention by the horizontal movement mechanism), and the sub-packaged small packs also perform multiple interventions (accurate sub-packaging is achieved through speed difference and height difference), so as to better achieve the effect of layer separation and sub-packaging and solve the problem of high failure rate during the layer separation and sub-packaging process. Through structural improvement, multiple interventions are realized, and it has excellent effects on the layer separation of double-layer cigarette packs and the sub-packaging of single-layer cigarette packs. Description of the Drawings

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the cigarette pack layer separation, sub-packaging, and visual inspection equipment after unpacking a carton of cigarettes according to an embodiment of the present invention.

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the cigarette pack layer lifting device according to an embodiment of the present invention.

[0021] Figure 3 Schematic side view structure diagram of the cigarette packet layer lifting device according to an embodiment of the present invention.

[0022] Figure 4 Schematic three-dimensional structure diagram of the longitudinal conveying device for cigarette packet sub-packaging according to an embodiment of the present invention.

[0023] Figure 5 Schematic three-dimensional structure diagram of the single-layer cigarette packet access conveying section according to an embodiment of the present invention.

[0024] Figure 6 Schematic three-dimensional structure diagram of the single-layer cigarette packet sub-packaging conveying section according to an embodiment of the present invention.

[0025] Figure 7 Schematic three-dimensional structure diagram of the three-sided vision inspection group for cigarette packets according to an embodiment of the present invention.

[0026] Figure 8 Schematic three-dimensional structure diagram of the cigarette packet turning and horizontal conveying device according to an embodiment of the present invention.

[0027] Figure 9 Schematic three-dimensional structure diagram of the turning and pushing mechanism according to an embodiment of the present invention.

[0028] Figure 10 Schematic three-dimensional structure diagram of the cigarette packet outlet and rejection device according to an embodiment of the present invention.

[0029] In the figure:

[0030] 1. Cigarette packet layer lifting device; 10. Cigarette packet bin; 11. Up and down movement mechanism; 12. Fixed support; 13. Horizontal movement mechanism; 14. Inlet layer guiding plate; 15. Cigarette packet layer outlet; 2. Longitudinal conveying device for cigarette packet sub-packaging; 20. Single-layer cigarette packet access conveying section; 200. First conveyor belt; 201. First guiding frame; 202. First support structure; 203. Cigarette packet presence detection sensor; 21. Single-layer cigarette packet sub-packaging conveying section; 210. Second conveyor belt; 211. Second guiding frame; 212. Second support structure; 213. Large and small pulley group; 214. First power source; 215. Differential roller group; 22. First three-sided vision inspection group for cigarette packets; 220. Camera lens group; 221. Top light source; 222. Auxiliary light source; 223. Bottom diffuser; 224. Bottom trigger sensor; 225. Support; 3. Cigarette packet turning and horizontal conveying device; 30. Turning and pushing mechanism; 300. Pushing synchronous belt with blocks; 301. Fixed frame; 302. Second power source; 303. Cigarette packet arrival sensor; 304. Turning slideway; 31. Cigarette packet horizontal conveying device; 32. Second three-sided vision inspection for cigarette packets; 33. Cigarette packet outlet and rejection device; 330. Rejection guiding port; 331. Rejection cigarette packet sensor; 332. Rejection solenoid valve; 333. Rejection nozzle; 4. Cigarette packet. Specific Embodiments

[0031] The present invention will be described in detail below in conjunction with embodiments and the accompanying drawings. It should be noted that the described embodiments are only for facilitating the understanding of the present invention and do not impose any limitations on it.

[0032] See Figure 1 As shown, a cigarette packet layer separation, sub-packaging, and visual inspection device provided in this embodiment includes a cigarette packet layer lifting device 1, a cigarette packet sub-packaging longitudinal conveying device 2, and a cigarette packet turning transverse conveying device 3. See Figure 2 and Figure 3 As shown, the cigarette packet layer lifting device 1 includes a cigarette packet bin 10, a vertical movement mechanism 11, a fixed support 12, and a horizontal movement mechanism 13. The fixed support 12 is fixed. The vertical movement mechanism 11, the horizontal movement mechanism 13, and the cigarette packet bin 10 are installed on the fixed support 12. An inlet layer guiding plate 14 is arranged in the cigarette packet bin 10. The inlet layer guiding plate 14 is located at the upper layer position of the double-layer cigarette packet 4. When the double-layer cigarette packet 4 is pushed into the cigarette packet bin 10 by the upstream cigarette unpacking device, the bottom cigarette packet 4 moves in a straight line along the pushing direction, and the upper cigarette packet 4 makes a compound movement under the guiding action of the inlet layer guiding plate 14, so as to achieve the first layer intervention and realize the position dislocation of the upper and lower layers, providing help for subsequent layer separation; then it passes through the cigarette packet sub-packaging longitudinal conveying device 2 and the cigarette packet turning transverse conveying device 3 in sequence to complete the layer separation and sub-packaging of the cigarette packet and perform six-sided visual inspection. After the double-layer cigarette packet 4 completely enters the cigarette packet bin 10, the vertical movement mechanism 11 drives the cigarette packet bin 10 to move downward. After reaching the bottom of the stroke, the horizontal movement mechanism 13 makes a horizontal extension movement. The horizontal movement mechanism 13 contacts the lower layer of the double-layer cigarette packet 4, so as to push out the lower cigarette packet 4 from the cigarette packet layer separation outlet 15. When the horizontal movement mechanism 13 retracts, the originally upper cigarette packet 4 drops to the lower layer by gravity and can be pushed out during the second push. The pushing action here realizes the second layer separation work. The two-layer separation effects can better solve the problem of non-adhesion of the double-layer cigarette packet 4. Figures 1 to 3 Two cigarette packet bins 10 are shown in

[0033] See Figure 4 As shown, the cigarette packet sub-packaging longitudinal conveying device 2 includes a single-layer cigarette packet access conveying section 20, a single-layer cigarette packet sub-packaging conveying section 21, and a first cigarette packet three-sided visual inspection group 22. The single-layer cigarette packet access conveying section 20 is connected to the single-layer cigarette packet sub-packaging conveying section 21, and the first cigarette packet three-sided visual inspection group 22 is arranged on the single-layer cigarette packet sub-packaging conveying section 21. See Figure 5As shown in the figure, the single-layer cigarette packet access and conveying section 20 includes a first conveyor belt 200, a first guide frame 201, a first support structure 202, and a cigarette packet presence / absence detection sensor 203. The first support structure 202 is fixed. The first conveyor belt 200, the first guide frame 201, and the cigarette packet presence / absence detection sensor 203 are all fixed to the first support structure 202. The single-layer cigarette packet access and conveying section 20 is mainly used for the access and forward conveying of the single-layer cigarette packets 4 pushed out by the cigarette packet layer lifting device 1. When the cigarette packets 4 are pushed in, the cigarette packet presence / absence detection sensor 203 is used to judge the presence or absence of the cigarette packets 4. When no cigarette packet 4 is detected, it can be pushed in and then conveyed. The first guide frame 201 is used for guiding the cigarette packets 4, and the first conveyor belt 200 is used for the forward conveying of the cigarette packets 4; see Figure 6 As shown in the figure, the single-layer cigarette packet sub-packaging and conveying section 21 includes a second conveyor belt 210, a second guide frame 211, a second support structure 212, and a differential structure. The second support structure 212 is fixed. The second conveyor belt 210, the second guide frame 211, and the differential structure are all fixed to the second support structure 212. The single-layer cigarette packet sub-packaging and conveying section 21 is used for the sub-packaging and forward movement of the incoming single-layer cigarette packets 4. The second conveyor belt 210 is used for the forward conveying of the cigarette packets 4, the second guide frame 211 is used for guiding during the conveying of the cigarette packets 4, and the differential structure is used for the sub-packaging of the single-layer cigarette packets 4. The differential structure includes a large and small pulley set 213, a first power source 214, and a differential roller set 215. The small pulley in the large and small pulley set 213 provides power for the single-layer cigarette packet sub-packaging and conveying section 21, and the large pulley provides power for the single-layer cigarette packet access and conveying section 20. The differential speed between the front and rear conveying sections is achieved through the speed ratio of the large and small pulleys to realize the sub-packaging of the cigarette packets 4; there is a height difference between the transition sections of the single-layer cigarette packet access and conveying section 20 and the single-layer cigarette packet sub-packaging and conveying section 21. The differential rollers are used to transition between the single-layer cigarette packet access and conveying section 20 and the single-layer cigarette packet sub-packaging and conveying section 21, and initially provide a speed difference for sub-packaging. The differential speed at both places provides assistance for sub-packaging. In addition, the height difference is provided between the transition of the single-layer cigarette packet access and conveying section 20 and the single-layer cigarette packet sub-packaging and conveying section 21, and the gravity is relied on to provide a dislocation space for the connected cigarette packets 4. See Figure 7 As shown in the figure, the first three-sided visual inspection group 22 of cigarette packets includes a camera lens group 220, a top light source 221, an auxiliary light source 222, a bottom diffuse reflection plate 223, a bottom trigger sensor 224, and a support 225. The support 225 plays a fixing role. The camera lens group 220 is arranged on the top and both sides in the advancing direction of the cigarette packets 4 and is responsible for taking pictures. The top light source 221 and the bottom diffuse reflection plate 223 are used to provide illumination for the three sides of the cigarette packets 4 to be detected. The diffuse reflection plate will reflect the light of the top light source 221 to the two sides of the cigarette packets 4 to be detected. The auxiliary light source 222 is used for illuminating the defects of the top cellophane of the cigarette packets 4. The trigger of the camera lens group 220 is set with a certain time delay after the first trigger. The bottom trigger sensor 224 is used to detect that after the cigarette packets 4 reach the photographing position, it provides a trigger signal for the camera lens group 220.

[0034] See Figure 8 As shown, the cigarette pack turning and laterally conveying device 3 includes a turning and pushing mechanism 30, a cigarette pack lateral conveying device 31, a second three-sided cigarette pack vision detection group 32, and a cigarette pack outlet and rejection device 33. The turning and pushing mechanism 30 is connected to the cigarette pack lateral conveying device 31 for turning the cigarette pack. The second three-sided cigarette pack vision detection group 32 is arranged on the cigarette pack lateral conveying device 31, and the cigarette pack outlet and rejection device 33 is located at the end of the cigarette pack turning and laterally conveying device 3. See Figure 9 As shown, the turning and pushing mechanism 30 includes a pushing synchronous belt with a stopper 300, a fixing frame 301, a second power source 302, a cigarette pack arrival sensor 303, and a turning slideway 304. The fixing frame 301 is used for fixing the whole mechanism. The second power source 302 provides the motive power for the synchronous belt with a stopper. When the sub-packaged cigarette pack 4 reaches the end position and the cigarette pack arrival sensor 303 detects its arrival, the second power source 302 drives the pushing synchronous belt with a stopper 300 to perform intermittent movement, pushing the cigarette pack into the turning slideway 304. The cigarette pack 4 reaches the lower cigarette pack lateral conveying device 31 through the arc slideway, and then the turning of the cigarette pack 4 is completed, thus preparing for taking pictures of the bottom of the subsequent cigarette pack 4. The cigarette pack lateral conveying device 31 is a conveying belt including a guiding frame. The structure of the second three-sided cigarette pack vision detection group 32 is the same as that of the first three-sided cigarette pack vision detection group 22, and is used for taking pictures of the other three sides of the cigarette pack 4. The specific structure will not be elaborated here. See Figure 10 As shown, the cigarette pack outlet and rejection device 33 includes a rejection guiding port 330, a rejection cigarette pack sensor 331, a rejection solenoid valve 332, and a rejection nozzle 333. When the defective cigarette pack 4 reaches the predetermined position, the rejection cigarette pack sensor 331 detects the cigarette pack 4 and then starts the rejection solenoid valve 332. The cigarette pack 4 is blown to the rejection guiding port 330 through the nozzle connected to the solenoid valve, and the qualified cigarette pack 4 flows into the downstream equipment.

[0035] Due to the adsorption force on the contact surface of the cigarette pack after packaging with oil seal paper, when the adsorption force is strong, single direct pushing cannot well complete the work of layer separation and sub-packaging. In view of the above pain points of the problem, the present invention intervenes multiple times in the double-layer cigarette pack connected after unpacking the strip cigarette. The entrance layer separation guiding plate intervenes for the first time and is pushed out by the horizontal movement mechanism. The sub-packaged small packs after layer separation also undergo multiple interventions of differential sub-packaging and height difference to achieve accurate sub-packaging, thus better achieving the effect of layer separation and sub-packaging and solving the problem of high failure rate in the process of layer separation and sub-packaging. Through structural improvement, multiple interventions are realized, and it has excellent effects on the layer separation of double-layer cigarette packs and the sub-packaging of single-layer cigarette packs.

[0036] In the visual appearance detection method of the present invention, in the visual detection of cigarette packs, the way of puzzle assembly is required. First, three cameras detect three sides of the cigarette pack, and then the cigarette pack is turned over and the other three sides are detected, avoiding the puzzle assembly detection method in the existing detection process and truly realizing the complete detection of six sides of the cigarette pack.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A cigarette packet layering, sub-packaging and visual inspection device after unpacking of strip cigarettes, characterized in that: It includes a cigarette pack layer-lifting device (1), a cigarette pack sub-packaging longitudinal conveying device (2), and a cigarette pack turning-over transverse conveying device (3). The cigarette pack layer-lifting device (1) includes a cigarette pack bin (10), a vertical movement mechanism (11), a fixed support (12), and a horizontal movement mechanism (13). The fixed support (12) is stationary. The vertical movement mechanism (11), the horizontal movement mechanism (13), and the cigarette pack bin (10) are installed on the fixed support (12). An inlet layer guiding plate (14) is arranged in the cigarette pack bin (10). The inlet layer guiding plate (14) is located at the upper layer position of the double-layer cigarette pack (4). When the double-layer cigarette pack (4) is pushed into the cigarette pack bin (10) by the upstream cigarette unpacking device, the bottom cigarette pack (4) moves in a straight line along the pushing direction, and the upper cigarette pack (4) realizes the position dislocation of the upper and lower layers under the guiding action of the inlet layer guiding plate (14). Then, it sequentially passes through the cigarette pack sub-packaging longitudinal conveying device (2) and the cigarette pack turning-over transverse conveying device (3) to complete the layer separation and sub-packaging of the cigarette packs and conduct six-sided visual inspection.

2. The unpacking, cigarette packet layering, sub-packaging and visual inspection device for strip cigarettes according to claim 1, wherein: After the double-layer cigarette pack (4) completely enters the cigarette pack bin (10), the vertical movement mechanism (11) drives the cigarette pack bin (10) to descend. After descending to the bottom of the stroke, the horizontal movement mechanism (13) extends horizontally. The horizontal movement mechanism (13) contacts the lower layer of the double-layer cigarette pack (4) and pushes the lower cigarette pack (4) out from the cigarette pack layer separation outlet (15). After the horizontal movement mechanism (13) retracts, the upper cigarette pack (4) descends to the lower layer by gravity and can be pushed out during the second push.

3. The unpacking, cigarette packet layering, sub-packaging and visual inspection device for strip cigarettes according to claim 1, characterized in that: The cigarette pack sub-packaging longitudinal conveying device (2) includes a single-layer cigarette pack access conveying section (20), a single-layer cigarette pack sub-packaging conveying section (21), and a first cigarette pack three-sided visual inspection group (22). The single-layer cigarette pack access conveying section (20) is connected to the single-layer cigarette pack sub-packaging conveying section (21), and the first cigarette pack three-sided visual inspection group (22) is arranged on the single-layer cigarette pack sub-packaging conveying section (21).

4. The unpacking, cigarette packet stratification, sub-packaging and visual inspection device for strip cigarettes according to claim 3, wherein: The single-layer cigarette pack access conveying section (20) includes a first conveyor belt (200), a first guiding frame (201), a first support structure (202), and a cigarette pack presence / absence detection sensor (203). The first support structure (202) is stationary. The first conveyor belt (200), the first guiding frame (201), and the cigarette pack presence / absence detection sensor (203) are all fixed on the first support structure (202). The single-layer cigarette pack access conveying section (20) is used for the access and forward conveying of the single-layer cigarette pack (4) pushed out by the cigarette pack layer-lifting device (1). When the cigarette pack (4) is pushed in, the presence / absence of the cigarette pack (4) is judged by the cigarette pack presence / absence detection sensor (203). It can be pushed in when no cigarette pack (4) is detected, and then conveyed. The first guiding frame (201) is used for guiding the cigarette pack (4), and the first conveyor belt (200) is used for the forward conveying of the cigarette pack (4).

5. The strip cigarette unpacking, cigarette packet stratification, sub-packaging and visual inspection device according to claim 3, characterized in that: The single-layer cigarette packet sub-packaging and conveying section (21) includes a second conveyor belt (210), a second guiding frame (211), a second supporting structure (212), and a differential structure. The second supporting structure (212) is fixed. The second conveyor belt (210), the second guiding frame (211), and the differential structure are all fixed to the second supporting structure (212). The single-layer cigarette packet sub-packaging and conveying section (21) is used for the sub-packaging work and forward movement of the incoming single-layer cigarette packets (4). The second conveyor belt (210) is used for the forward conveying of the cigarette packets (4). The second guiding frame (211) is used for guiding during the conveying of the cigarette packets (4). The differential structure is used for the sub-packaging of the single-layer cigarette packets (4). The differential structure includes a large and small pulley group (213), a first power source (214), and a differential roller group (215). The small pulley in the large and small pulley group (213) provides power for the single-layer cigarette packet sub-packaging and conveying section (21), and the large pulley provides power for the single-layer cigarette packet access and conveying section (20). The differential speed between the front and rear conveying sections is achieved through the speed ratio of the large and small pulleys, realizing the sub-packaging of the cigarette packets (4). There is a height difference between the transition section of the single-layer cigarette packet access and conveying section (20) and the single-layer cigarette packet sub-packaging and conveying section (21).

6. The unpacking, cigarette pack stratification, sub-packaging and visual inspection device for strip cigarettes according to claim 3, wherein: The first three-side visual inspection group for cigarette packets (22) includes a camera lens group (220), a top light source (221), an auxiliary light source (222), a bottom diffuse reflection plate (223), a bottom trigger sensor (224), and a support (225). The support (225) plays a fixing role. The camera lens group (220) is arranged on the top and both sides in the advancing direction of the cigarette packets (4), responsible for taking pictures and collecting images. The top light source (221) and the bottom diffuse reflection plate (223) are used to provide illumination for the three sides of the cigarette packets (4) to be inspected. The diffuse reflection plate reflects the light of the top light source (221) to both sides of the cigarette packets (4) to be inspected. The auxiliary light source (222) is used for illuminating the defects of the cellophane on the top surface of the cigarette packets (4). The triggering of the camera lens group (220) is set with a certain time delay after the first trigger. The bottom trigger sensor (224) is used to detect the arrival of the cigarette packets (4) at the photographing position and provide a trigger signal for the camera lens group (220).

7. The unpacking, cigarette pack layering, sub-packaging and visual inspection equipment for strip cigarettes according to claim 1, wherein: The cigarette packet turning and horizontal conveying device (3) includes a turning and pushing mechanism (30), a cigarette packet horizontal conveying device (31), a second three-side visual inspection group for cigarette packets (32), a cigarette packet outlet, and a rejection device (33). The turning and pushing mechanism (30) is connected to the cigarette packet horizontal conveying device (31) and is used to turn the cigarette packets. The second three-side visual inspection group for cigarette packets (32) is arranged on the cigarette packet horizontal conveying device (31). The cigarette packet outlet and the rejection device (33) are located at the end of the cigarette packet turning and horizontal conveying device (3).

8. The unpacking and visual inspection equipment for cigarette packs and their stratified sub-packaging after unpacking a carton of cigarettes according to claim 7, characterized in that: The turnover and pushing mechanism (30) includes a pushing synchronous belt with a stop block (300), a fixing frame (301), a second power source (302), a cigarette pack arrival sensor (303), and a turnover slideway (304). The fixing frame (301) is used for fixing the whole mechanism. The second power source (302) provides the driving force for the synchronous belt with a stop block. When the sub-packaged cigarette pack (4) reaches the end position and is detected by the cigarette pack arrival sensor (303), the second power source (302) drives the pushing synchronous belt with a stop block (300) to perform intermittent movement, pushing the cigarette pack into the turnover slideway (304). The cigarette pack (4) reaches the lower cigarette pack horizontal conveying device (31) through the arc-shaped slideway, and then the turnover of the cigarette pack (4) is completed, preparing for the subsequent bottom image acquisition of the cigarette pack (4).

9. The cigarette packet layering and sub-packaging and visual inspection device after unpacking the strip cigarettes according to claim 7, characterized in that: The cigarette pack horizontal conveying device (31) is a conveying belt including a guiding frame; The structure of the second three-sided visual inspection group of cigarette packs (32) is the same as that of the first three-sided visual inspection group of cigarette packs (22), and is used for taking images of the other three sides of the cigarette pack (4).

10. A cigarette packet layer separation, sub-packaging and visual inspection device after unpacking a cigarette strip according to claim 7, characterized in that: The cigarette pack outlet and rejection device (33) includes a rejection guiding port (330), a cigarette pack rejection sensor (331), a rejection solenoid valve (332), and a rejection nozzle (333). When the defective cigarette pack (4) reaches the predetermined position and is detected by the cigarette pack rejection sensor (331), the rejection solenoid valve (332) is activated, and the cigarette pack (4) is blown to the rejection guiding port (330) through the nozzle connected to the solenoid valve, and the qualified cigarette packs (4) flow into the downstream equipment.

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