Equipment structure for packaging products in sleeve boxes

Abstract

This invention discloses a device structure for packaging sleeve boxes, including a stepping conveyor line, a feeding mechanism, a release film removal mechanism, a first folding mechanism, a second folding mechanism, and a sealing and shaping mechanism arranged sequentially along the conveying direction of the stepping conveyor line. The feeding mechanism includes a vertical feeding rack above the conveyor line and a suction mechanism below a fixed conveyor platform, which pulls the bottom cardboard from the vertical feeding rack onto the conveyor line. The release film removal mechanism removes the release film from the cardboard. The first folding mechanism includes a first movable folding plate that flips the right half of the cardboard upwards to an upright position. The second movable folding plate of the second folding mechanism flips the cardboard from an upright position downwards to an inclined position. The sealing and shaping mechanism surrounds the product with the cardboard. This invention provides the hardware foundation for automatic sleeve box packaging, facilitating the automation of sleeve box packaging.

Description

Technical Field

[0001] The present invention relates to the field of packaging, in particular to equipment for packaging products. Background Art

[0002] Sleeve box, similar to a sleeve, surrounds the product. The sleeve box is made of a folded cardboard, with the ends connected by gluing. Summary of the invention

[0003] The technical problem solved by the present invention is to provide a device structure for packaging products in a sleeve box, thereby providing a hardware basis for automatic packaging products in a sleeve box.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: an equipment structure for packaging products in a sleeve box, comprising a step-by-step conveyor line, a feeding mechanism, a release film separation mechanism, a primary folding mechanism, a secondary folding mechanism, and a packaging shaping mechanism sequentially arranged along the conveying direction of the step-by-step conveyor line;

[0005] The step-by-step conveyor line includes a fixed conveying platform, a movable conveying frame that is movably matched on the fixed conveying platform and reciprocates back and forth, and a plurality of pairs of lifting frames arranged on the movable conveying frame. The plurality of pairs of lifting frames are distributed along the conveying direction of the step-by-step conveyor line. When the lifting frames rise, they protrude upward from the fixed conveying platform, and when they fall, they are lower than the fixed conveying platform.

[0006] The feeding mechanism includes a vertical feeding rack located above the fixed conveying platform and a suction mechanism located below the fixed conveying platform, and the suction mechanism can pull the bottom cardboard in the vertical feeding rack down to the fixed conveying platform;

[0007] The release film separation mechanism includes a release film clamping jaw and a release film clamping jaw driving assembly for driving the release film clamping jaw to translate and lift;

[0008] The primary folding mechanism includes a vertical fixed plate located on the right side of the fixed conveying platform, and a first movable folding plate located on the right side of the vertical fixed plate and capable of being flipped upward to be in an upright state, and a gap for accommodating paperboard is provided between the vertical fixed plate and the fixed conveying platform;

[0009] The re-folding mechanism includes a second movable folding plate located on the right side of the fixed conveying platform, and the second movable folding plate can be flipped downward from an upright state to an inclined state;

[0010] The packaging shaping mechanism includes a vertical packaging cylinder located on the left side of the fixed conveying platform, a packaging pressure plate connected to the vertical packaging cylinder, an upper packaging roller arranged on the left side of the packaging pressure plate, and a lower packaging roller arranged on the left side of the fixed conveying platform. The upper packaging roller can descend and the lower packaging roller can rise.

[0011] The feeding mechanism is located at the feeding station, the release film separation mechanism is located at the film tearing station, the primary folding mechanism is located at the primary folding station, the secondary folding mechanism is located at the secondary folding station, and the packaging and shaping mechanism is located at the packaging and shaping station. Each station is equipped with at least one pair of lifting frames, all lifting frames rise synchronously, and the cardboards on all stations are lifted and separated from the fixed conveying platform. Afterwards, the movable conveying frame moves forward, all lifting frames move forward one station, and the cardboards on all lifting frames move forward one station. Afterwards, all lifting frames descend synchronously, and the cardboards fall on the fixed conveying platform. Afterwards, the movable conveying frame retreats one station, and when all lifting frames rise synchronously again, the cardboards on all stations move forward one station again. This is repeated, and the stepping conveyor line gradually conveys the cardboards on all stations forward.

[0012] A stack of cardboard is placed in the vertical loading rack. Each time the suction mechanism takes material, it pulls the bottom cardboard of the stack down to the loading station.

[0013] Under the conveyance of the step-by-step conveyor line, the cardboard comes to the film tearing station, and the release film clamps the edge of the release film on the cardboard. Driven by the release film clamp driving assembly, the release film is peeled off the cardboard. There is adhesive on the cardboard at the release film peeling point, which is used for the subsequent adhesion of the sleeve box head and tail.

[0014] Under the conveyance of the step-by-step conveyor line, the cardboard comes to the first folding station, the vertical fixed plate is located above the middle of the cardboard, and the first movable folding plate flips upward to fold the right half of the cardboard upward into a vertical position. Afterwards, under the conveyance of the step-by-step conveyor line, the cardboard moves along the gap between the first movable folding plate and the vertical fixed plate to the second folding station, and the second movable folding plate folds the right half of the vertical cardboard toward the left half of the cardboard, and the right half of the cardboard is tilted.

[0015] Under the conveyance of the step-by-step conveyor line, the right half of the cardboard comes to the packaging and shaping station along the second movable folding plate. The right half of the cardboard is limited by the packaging press plate, and the product is placed in the folded cardboard. After that, driven by the vertical cylinder for packaging, the packaging press plate descends and continues to fold the right half of the cardboard downward until the right half of the cardboard contacts the product. After that, the lower roller for packaging rises, folds the tongue of the left half of the cardboard (the tongue is the release film peeling place, with adhesive) upward, and the upper roller for packaging descends, folds the tongue of the right half of the cardboard downward, so that the tongue of the right half of the cardboard is bonded to the left half of the cardboard, forming a sleeve box, and completing the packaging of the product.

[0016] The invention provides an equipment structure for sleeve box packaging products, which provides a hardware basis for sleeve box automatic packaging products, is conducive to realizing the automation of sleeve box packaging products, and improves packaging efficiency.

[0017] The step-by-step conveyor line includes a short conveyor line and a long conveyor line arranged in parallel. Lifting frames are provided on both sides of the short conveyor line and the long conveyor line, and all lifting frames are installed on the movable conveyor frame; the release film detachment mechanism is located on the right side of the short conveyor line, the primary folding mechanism and the secondary folding mechanism are located on the right side of the long conveyor line, and the packaging shaping mechanism is located on the left side of the long conveyor line. The short conveyor line and the long conveyor line are aligned at the starting position of the conveyance, and the short conveyor line is located on the right side of the long conveyor line. At the primary folding mechanism, the cardboard has been separated from the short conveyor line and is only conveyed by the long conveyor line. The design of the long conveyor line and the short conveyor line provides space conditions for the primary folding mechanism and the secondary folding mechanism to fold the right half of the cardboard.

[0018] The movable conveyor frame is connected to the screw mechanism, and the screw mechanism and the matching motor are installed on the frame of the fixed conveying platform. The movable conveyor frame is provided with a lifting frame bracket, and the lifting frame bracket is provided with a lifting frame vertical guide rail. The lifting frame is movably matched on the lifting frame vertical guide rail, and the lifting frame is provided with a lifting roller; the movable conveyor frame is provided with a lifting horizontal cylinder, and the lifting horizontal cylinder is connected to the horizontal strip, and the horizontal strip is provided with a slope, and the roller cooperates with the slope. The lifting horizontal cylinder extends out, drives the horizontal strip forward, the roller goes up the slope, and the lifting frame rises along the lifting frame vertical guide rail. The lifting horizontal cylinder retracts, the horizontal strip retreats, the roller goes down the slope, and the lifting frame descends. After the lifting frame rises, the screw mechanism drives the movable conveyor frame to advance one station. After the lifting frame descends, the screw mechanism drives the movable conveyor frame to retreat one station.

[0019] The vertical loading rack is in the shape of a three-dimensional frame, and the stacked cardboards are located in the vertical loading rack. The vertical loading rack is provided with a block to prevent the cardboards from falling. The suction mechanism includes a vertical cylinder for suction and a vertical suction cup connected to the vertical cylinder for suction, and the vertical suction cup is located below the vertical loading rack. The two vertical loading racks are arranged above the fixed conveying platform in front and behind, and the suction mechanism includes a horizontal cylinder for suction, and the vertical cylinder for suction is connected to the horizontal cylinder for suction. Driven by the vertical cylinder for suction, the vertical suction cup rises and absorbs the bottom cardboard of a stack of cardboards. The vertical suction cup descends and pulls the bottom cardboard down to the fixed conveying platform. After the cardboards in one vertical loading rack are used up, the horizontal cylinder for suction drives the vertical cylinder for suction and the vertical suction cup to move to the bottom of another vertical loading rack, and pulls the cardboards in the vertical loading rack down to the fixed conveying platform.

[0020] The release film clamp adopts a pneumatic clamp, and the release film clamp driving assembly includes a film tearing rotary cylinder connected to the release film clamp, a film tearing horizontal cylinder connected to the film tearing rotary cylinder, and a film tearing vertical cylinder connected to the film tearing horizontal cylinder. After the release film clamp clamps the release film on the cardboard tongue, the release film clamp rotates a certain angle under the drive of the film tearing rotary cylinder, and the release film is peeled off the cardboard tongue under the drive of the film tearing horizontal cylinder and the film tearing vertical cylinder. A film suction tube is provided below the release film clamp, and the torn release film is sucked into the film suction tube.

[0021] A pair of guide and positioning mechanisms are provided on the left and right sides of the step-by-step conveyor line. The guide and positioning mechanisms are equipped with forward and backward guide plates and positioning vertical cylinders. There is a gap between the guide plates and the fixed conveying platform to accommodate cardboard. The positioning vertical cylinder is equipped with a lifting plate. The first and second pressing blocks are respectively provided at both ends of the lifting plate. The first and second pressing blocks are arranged front and back. The first pressing block presses on the cardboard at the film-tearing station, and the second pressing block presses on the cardboard at the detection station. A detection device for detecting whether there is a release film on the cardboard is provided on the right side of the fixed conveying platform. Before the release film clamp peels off the film, the first pressing block presses the cardboard on the fixed conveying platform. The detection device is located on the detection station, and the detection station is located next to the film-tearing station. When the cardboard at the film-tearing station is torn, the cardboard at the detection station is detected, and the first pressing block and the second pressing block act synchronously to press the cardboard at the corresponding station on the fixed conveying platform.

[0022] The vertical fixed plate includes a blocking portion used in conjunction with the first movable folding plate, and a limit bar extending forward. The vertical fixed plate is connected to a curved connecting arm, and the curved connecting arm is installed on a vertical folding bracket. The first movable folding plate is hinged on the first folding plate stand, the first movable folding plate is hinged to the first folding cylinder, and a folding pressure plate mechanism is provided on the left side of the vertical fixed plate. The second movable folding plate is located beside the first movable folding plate and above the limit bar. The second movable folding plate is hinged on the second folding plate stand, and the second movable folding plate is hinged to the second folding cylinder through an inclined plate. Under the drive of the first folding cylinder, the first movable folding plate flips upward to fold the right half of the cardboard into an upright shape, and the right half of the cardboard is located between the first movable folding plate and the blocking portion. Afterwards, under the conveyance of the step-by-step conveyor line, the cardboard moves forward, and the right half of the cardboard enters between the limit bar and the second movable folding plate. The rotation axis of the second movable folding plate is located above the limit bar. Driven by the second folding cylinder, the upright right half of the cardboard is folded toward the left half of the cardboard, so that the right half of the cardboard is in an inclined state.

[0023] A folding blocking frame is provided on the curved connecting arm, and the folding blocking frame is used in conjunction with the second movable folding plate to control the folding angle of the cardboard. The folding blocking frame is movably matched with a telescopic blocking plate, which is telescopic in the front-to-back direction through a telescopic cylinder. When extended forward, it is located below the packaging pressing plate. Under the conveyance of the step-by-step conveyor line, the right half of the cardboard passes through the transition of the telescopic blocking plate to the packaging finalization station, and is located below the packaging pressing plate. The packaging pressing plate limits the right half of the cardboard from resetting. When the packaging pressing plate continues to press down on the right half of the cardboard, the telescopic blocking plate retracts to make way for the descent of the packaging pressing plate.

[0024] The packaging platen is provided with an upper roller cylinder, which is connected to the upper roller bracket, and the upper roller for packaging is pivoted on the upper roller bracket; the lower roller for packaging is pivoted on the lower roller bracket, and the lower roller bracket is connected to the lower roller vertical cylinder. The front and rear sides of the packaging platen are provided with tilted cylinders, which are connected to the tilted pressing block. When the tilted cylinder is in an extended state, the tilted pressing block is lower than the packaging platen. Under the conveyance of the step-by-step conveyor line, the right half of the cardboard comes to the packaging finalization station through the transition of the telescopic blocking plate. When it is located below the packaging platen, the right half of the cardboard contacts the tilted pressing block, and the right half of the cardboard maintains its original folded state. When the packaging platen descends to fold the right half of the cardboard, the tilted cylinder retracts, and the right half of the cardboard contacts the packaging platen.

[0025] An edge baffle is provided on the right side of the fixed conveying platform. The edge baffle is located on the right side of the limit strip and is arranged in parallel with the limit strip. There is a gap between the edge baffle and the limit strip to accommodate the cardboard, and the front end of the edge baffle protrudes forward from the limit strip. A product top-pressing horizontal cylinder is provided on the left side of the fixed conveying platform. The product top-pressing horizontal cylinder is connected to the product top-pressing block. The product top-pressing block and the edge baffle protruding forward from the limit strip are arranged opposite to each other on the left and right. A pair of right-side product clamps and a vertical cylinder for the right-side product clamps for driving the right-side product clamps to rise and fall are provided below the fixed conveying platform, as well as a pair of left-side product clamps and a vertical cylinder for the left-side product clamps for driving the left-side product clamps to rise and fall. The part of the cardboard bent into a vertical shape (the right side wall of the sleeve box) moves along the limit strip and the edge baffle to the packaging and shaping station. After arriving at the packaging and shaping station, the cardboard has been separated from the limit strip but is still in contact with the edge baffle. After the product is placed in the encirclement of the cardboard, the product pressing horizontal cylinder drives the product pressing block to press the product, so that the product is close to the edge baffle of the forward protruding limit strip. At the same time, a pair of right product clamps clamp the front and back sides of the right half of the product, and a pair of left product clamps clamp the front and back sides of the left half of the product. In this way, the product is clamped and positioned from front to back and from left to right. When the lower roller for packaging rises and the tongue piece of the left half of the cardboard is folded upward, the product pressing block retreats and resets to make way, and then the upper roller for packaging descends, folding the tongue piece of the right half of the cardboard downward, so that the tongue piece of the right half of the cardboard is bonded to the left half of the cardboard, forming a sleeve box, and completing the packaging of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings:

[0027] Figure 1 A top view of the equipment structure for packaging products in sleeve boxes;

[0028] Figure 2 It is a three-dimensional schematic diagram of the equipment structure for packaging products in sleeve boxes;

[0029] Figure 3 is a schematic diagram of a step-by-step conveyor line 10;

[0030] Figure 4 is a schematic diagram of the step-by-step conveyor line 10 viewed from below;

[0031] Figure 5 It is a front view of the step-by-step conveyor line 10;

[0032] Figure 6 is a schematic diagram of a vertical loading rack 60;

[0033] Figure 7 is a schematic diagram of the material suction mechanism 70;

[0034] Figure 8is a schematic diagram of a release film separation mechanism 20;

[0035] Fig. 9 is a schematic diagram of the guiding and positioning mechanism 25;

[0036] Fig.10 It is a schematic diagram of the combined structure of the primary folding mechanism 30, the secondary folding mechanism 40, and the packaging shaping mechanism 50;

[0037] Fig.11 for Fig.10 The schematic diagram of the combined structure of the primary folding mechanism 30, the secondary folding mechanism 40, and the packaging shaping mechanism 50 is observed from the left side;

[0038] Fig.12 for Fig.10 The schematic diagram of the combined structure of the primary folding mechanism 30, the secondary folding mechanism 40, and the packaging shaping mechanism 50 is observed from the right side;

[0039] Fig.13 for Fig.10 FIG. 1 is a schematic diagram of the combined structure of the primary folding mechanism 30, the secondary folding mechanism 40, and the packaging shaping mechanism 50 as viewed from the rear.

[0040] Explanation of symbols in the figure:

[0041] 10. Step-by-step conveyor line; 101. Short conveyor line; 102. Long conveyor line; 11. Fixed conveyor platform; 12. Movable conveyor frame; 13. Lifting frame; 131. Lifting frame bracket; 132. Lifting roller; 14. Screw mechanism; 15. Horizontal strip; 151. Lifting horizontal cylinder; 152. Slope;

[0042] 20. Release film separation mechanism; 21. Release film clamping claw; 22. Rotary cylinder for film tearing; 23. Horizontal cylinder for film tearing; 24. Vertical cylinder for film tearing; 25. Guide positioning mechanism; 251. Guide plate; 252. Vertical cylinder for positioning; 253. Lifting plate; 254. First pressing block; 255. Second pressing block; 26. Detection device; 27. Film suction tube;

[0043] 30. Initial folding mechanism; 31. Vertical fixed plate; 311. Blocking part; 312. Limiting strip; 32. First movable folding plate; 321. First folding cylinder; 33. Curved connecting arm; 34. Vertical bracket for folding; 35. Pressing plate mechanism for folding; 36. Edge baffle;

[0044] 40. Re-folding mechanism; 41. Second movable folding plate; 411. Tilt plate; 412. Second folding cylinder; 42. Folding blocking frame; 43. Telescopic blocking plate; 44. Telescopic cylinder;

[0045] 50. Packaging shaping mechanism; 51. Vertical cylinder for packaging; 52. Packaging pressing plate; 53. Upper roller for packaging; 531. Cylinder for upper roller; 54. Lower roller for packaging; 541. Vertical cylinder for lower roller; 55. Inclined cylinder; 551. Inclined pressing block; 56. Horizontal cylinder for product top pressure; 57. Right product clamping jaw; 571. Vertical cylinder for right product clamping jaw; 58. Left product clamping jaw; 581. Vertical cylinder for left product clamping jaw;

[0046] 60. Vertical loading rack; 61. Stopper;

[0047] 70. Suction mechanism; 71. Vertical cylinder for suction; 72. Vertical suction cup; 73. Horizontal cylinder for suction. DETAILED DESCRIPTION

[0048] Combination Figure 2 , Figure 3 , Fig.10 , Fig.13 A device structure for packaging products in a sleeve box includes a stepping conveyor line 10, a feeding mechanism arranged in sequence along the conveying direction of the stepping conveyor line, a release film separation mechanism 20, a primary folding mechanism 30, a secondary folding mechanism 40, and a packaging and shaping mechanism 50.

[0049] The step-by-step conveyor line 10 includes a fixed conveying platform 11, a movable conveying frame 12 that is movably matched on the fixed conveying platform and reciprocates back and forth, and a plurality of pairs of lifting frames 13 arranged on the movable conveying frame. The plurality of pairs of lifting frames are distributed along the conveying direction of the step-by-step conveyor line. When the lifting frames rise, they protrude upward from the fixed conveying platform, and when they fall, they are lower than the fixed conveying platform. The feeding mechanism includes a vertical feeding frame 60 located above the fixed conveying platform and a suction mechanism 70 located below the fixed conveying platform. The suction mechanism can pull the bottommost cardboard in the vertical feeding frame down to the fixed conveying platform 11. The release film separation mechanism 20 includes a release film clamp 21 and a release film clamp driving assembly for driving the release film clamp to translate and lift. The primary folding mechanism 30 includes a vertical fixed plate 31 located on the right side of the fixed conveying platform 11, and a first movable folding plate 32 located on the right side of the vertical fixed plate and capable of being flipped upward to be upright. There is a gap between the vertical fixed plate and the fixed conveying platform to accommodate the cardboard. The refolding mechanism 40 includes a second movable folding plate 41 located on the right side of the fixed conveying platform 11, and the second movable folding plate can be turned downward from an upright state to an inclined state. The packaging shaping mechanism 50 includes a packaging vertical cylinder 51 located on the left side of the fixed conveying platform 11, a packaging pressing plate 52 connected to the packaging vertical cylinder, an upper packaging roller 53 arranged on the left side of the packaging pressing plate, and a lower packaging roller 54 arranged on the left side of the fixed conveying platform. The upper packaging roller can be lowered, and the lower packaging roller can be raised.

[0050] refer to Figures 3 to 5 The step-by-step conveyor line 10 includes a short conveyor line 101 and a long conveyor line 102 arranged in parallel. Lifting frames 13 are provided on both sides of the short conveyor line and the long conveyor line, and all lifting frames are installed on the movable conveyor frame 12; the release film detachment mechanism 20 is located on the right side of the short conveyor line, the primary folding mechanism 30 and the secondary folding mechanism 40 are located on the right side of the long conveyor line, and the packaging finalization mechanism 50 is located on the left side of the long conveyor line.

[0051] The movable conveying frame 12 is connected to the screw mechanism 14, and the screw mechanism and the matching motor are installed on the frame of the fixed conveying platform 11. The movable conveying frame 12 is provided with a lifting frame bracket 131, and the lifting frame bracket is provided with a lifting frame vertical guide rail, and the lifting frame is movably matched on the lifting frame vertical guide rail, and the lifting frame is provided with a lifting roller 132; the movable conveying frame is provided with a lifting horizontal cylinder 151, and the lifting horizontal cylinder is connected to the horizontal strip 15, and the horizontal strip is provided with a ramp 152, and the roller cooperates with the ramp.

[0052] like Figure 6 , Figure 7 The vertical loading rack 60 is in the shape of a three-dimensional frame, and the stacked paperboards are located in the vertical loading rack. The vertical loading rack is provided with a stopper 61 to prevent the paperboards from falling. The suction mechanism 70 includes a vertical cylinder 71 for suction and a vertical suction cup 72 connected to the vertical cylinder for suction. The vertical suction cup is located below the vertical loading rack. The two vertical loading racks 60 are arranged front and back above the fixed conveying platform 11. The suction mechanism includes a horizontal cylinder 73 for suction. The vertical cylinder 71 for suction is connected to the horizontal cylinder for suction.

[0053] like Figure 8 The release film clamp 21 adopts a pneumatic clamp, and the release film clamp driving assembly includes a film tearing rotary cylinder 22 connected to the release film clamp, a film tearing horizontal cylinder 23 connected to the film tearing rotary cylinder, and a film tearing vertical cylinder 24 connected to the film tearing horizontal cylinder.

[0054] like Figure 2 , Fig. 9 A pair of guide and positioning mechanisms 25 are provided on the left and right sides of the step-by-step conveyor line 10, and a front-to-rear guide plate 251 and a vertical positioning cylinder 252 are installed on the guide and positioning mechanism. There is a gap for accommodating cardboard between the guide plate and the fixed conveying platform 11, and a lifting plate 253 is installed on the positioning vertical cylinder. A first pressing block 254 and a second pressing block 255 are respectively provided at both ends of the lifting plate. The first pressing block and the second pressing block are arranged front and back. The first pressing block presses on the cardboard at the film tearing station, and the second pressing block presses on the cardboard at the detection station. A detection device 26 for detecting whether there is a release film on the cardboard is provided on the right side of the fixed conveying platform.

[0055] Combination Figures 10 to 13 The vertical fixed plate 31 includes a blocking portion 311 used in conjunction with the first movable folding plate 32, and a limit bar 312 extending forward. The vertical fixed plate is connected to a curved connecting arm 33, and the curved connecting arm is mounted on a folding vertical bracket 34. The first movable folding plate 32 is hinged on the first folding plate stand, and the first movable folding plate is hinged to the first folding cylinder 321. A folding pressing plate mechanism 35 is provided on the left side of the vertical fixed plate 31. The second movable folding plate 41 is located beside the first movable folding plate 32 and above the limit bar 312. The second movable folding plate is hinged on the second folding plate stand, and the second movable folding plate is hinged to the second folding cylinder 412 through the tilting plate 411.

[0056] The curved connecting arm 33 is provided with a folding blocking frame 42, which is used in conjunction with the second movable folding plate 41 to control the folding angle of the paperboard. The folding blocking frame 42 is movably matched with a telescopic blocking plate 43, which is telescopic in the front-to-back direction through a telescopic cylinder 44, and when extended forward, is located below the packaging pressing plate 52.

[0057] The packaging platen 52 is provided with an upper roller cylinder 531, which is connected to an upper roller bracket, and the upper roller for packaging is pivoted to the upper roller bracket; the lower roller for packaging 54 is pivoted to the lower roller bracket, and the lower roller bracket is connected to a lower roller vertical cylinder 541. The front and rear sides of the packaging platen 52 are provided with tilting cylinders 55, which are connected to tilting pressing blocks 551. When the tilting cylinder is in an extended state, the tilting pressing blocks are lower than the packaging platen.

[0058] An edge baffle 36 is provided on the right side of the fixed conveying platform 11. The edge baffle is located on the right side of the limit bar 312 and is arranged in parallel with the limit bar. There is a gap between the edge baffle and the limit bar to accommodate the cardboard, and the front end of the edge baffle protrudes forward from the limit bar. A product top-pressing horizontal cylinder 56 is provided on the left side of the fixed conveying platform 11. The product top-pressing horizontal cylinder is connected to the product top-pressing block. The product top-pressing block is arranged opposite to the edge baffle 36 protruding forward from the limit bar. A pair of right-side product clamps 57, a right-side product clamp for vertical cylinder 571 for driving the right-side product clamp to rise and fall, and a pair of left-side product clamps 58, and a left-side product clamp for vertical cylinder 581 for driving the left-side product clamp to rise and fall are provided below the fixed conveying platform 11.

[0059] The feeding mechanism is located at the feeding station, the release film separation mechanism 20 is located at the film tearing station, the primary folding mechanism 30 is located at the primary folding station, the secondary folding mechanism 40 is located at the secondary folding station, and the packaging and shaping mechanism 50 is located at the packaging and shaping station. Each station is equipped with at least one pair of lifting frames 13, all lifting frames rise synchronously, and the cardboards on all stations are lifted and separated from the fixed conveying platform 11. Afterwards, the movable conveying frame 12 moves forward, all lifting frames 13 move forward one station, and the cardboards on all lifting frames move forward one station. Afterwards, all lifting frames 13 descend synchronously, and the cardboards fall on the fixed conveying platform. Afterwards, the movable conveying frame 12 retreats one station, and when all lifting frames 13 rise synchronously again, the cardboards on all stations move forward one station again. This is repeated, and the stepping conveyor line 10 gradually conveys the cardboards on all stations forward. Among them, the lifting horizontal cylinder 151 extends, drives the horizontal strip 15 forward, the lifting roller 132 goes up the slope 152, and the lifting frame 13 rises along the lifting frame vertical guide rail. The lifting horizontal cylinder 151 retracts, the horizontal strip 15 retreats, the roller goes down the slope, and the lifting frame 13 descends. After the lifting frame rises, the screw mechanism 14 drives the movable conveying frame 12 forward one station. After the lifting frame 13 descends, the screw mechanism drives the movable conveying frame to retreat one station.

[0060] The short conveyor line 101 and the long conveyor line 102 are aligned at the starting position of conveyance, and the short conveyor line is located on the right side of the long conveyor line. At the primary folding mechanism 30, the cardboard has been separated from the short conveyor line and is only conveyed by the long conveyor line 102. The design of the long conveyor line and the short conveyor line provides space conditions for the primary folding mechanism 30 and the secondary folding mechanism 40 to fold the right half of the cardboard.

[0061] A stack of cardboards is placed in the vertical loading rack 60. Each time the suction mechanism 70 takes material, the bottom cardboard of the stack is pulled down to the loading station. Specifically, driven by the vertical suction cylinder 71, the vertical suction cup 72 rises and sucks the bottom cardboard of the stack. The vertical suction cup 72 descends and pulls the bottom cardboard down to the fixed conveying platform 11. After the cardboards in one vertical loading rack 60 are used up, the horizontal suction cylinder 73 drives the vertical suction cylinder 71 and the vertical suction cup 72 to move to the bottom of another vertical loading rack 60, and pulls the cardboards in the vertical loading rack down to the fixed conveying platform 11.

[0062] Under the conveyance of the step-by-step conveyor line 10, the cardboard comes to the film-tearing station, and the release film clamping jaw 21 clamps the edge of the release film on the cardboard. After the release film clamping jaw 21 clamps the release film on the cardboard tongue, the release film clamping jaw 21 rotates a certain angle under the drive of the film-tearing rotary cylinder 22, and the release film is peeled off the cardboard tongue under the drive of the film-tearing horizontal cylinder 23 and the film-tearing vertical cylinder 24. A film suction tube 27 is provided below the release film clamping jaw 21, and the torn release film is sucked into the film suction tube. Before the release film clamping jaw 21 peels off the film, the first lower pressing block 254 presses the cardboard tightly on the fixed conveying platform 11. The detection device 26 is located on the detection station, and the detection station is located next to the film tearing station. When the cardboard at the film tearing station is torn, the cardboard at the detection station is detected, and the first pressing block 254 and the second pressing block 255 act synchronously to press the cardboard at the corresponding station onto the fixed conveying platform 11.

[0063] Under the conveyance of the step-by-step conveyor line 10, the cardboard arrives at the initial folding station, the vertical fixed plate 31 is located above the middle of the cardboard, the first movable folding plate 32 is turned upward, and the right half of the cardboard is folded upward into a vertical position, and the right half of the cardboard is located between the first movable folding plate 32 and the blocking portion 311. Afterwards, under the conveyance of the step-by-step conveyor line 10, the cardboard moves forward, and the right half of the cardboard enters between the limit bar 312 and the second movable folding plate 41. The rotation axis of the second movable folding plate is located above the limit bar 312. Driven by the second folding cylinder, the vertical right half of the cardboard is folded toward the left half of the cardboard, and the right half of the cardboard is pressed against the folding blocking frame 42, and the right half of the cardboard is in an inclined state.

[0064] Under the conveyance of the step-by-step conveyor line 10, the right half of the cardboard passes through the transition of the telescopic blocking plate 43 and arrives at the packaging and shaping station. When it is located below the packaging pressing plate 52, the right half of the cardboard contacts the inclined pressing block 551, and the right half of the cardboard remains in the original folded state. At the same time, the part of the cardboard that is bent into an upright state (the right side wall of the sleeve box) moves along the limiting strip 312 and the edge baffle 36 and arrives at the packaging and shaping station. After arriving at the packaging and shaping station, the cardboard has been separated from the limiting strip 312 but is still in contact with the edge baffle 36.

[0065] After the product is placed in the encirclement of the cardboard, the product pressing horizontal cylinder 56 drives the product pressing block to press the product, so that the product is close to the edge baffle 36 of the forward protruding limit strip. At the same time, a pair of right product clamps 57 clamp the front and back sides of the right half of the product, and a pair of left product clamps 58 clamp the front and back sides of the left half of the product. In this way, the product is clamped and positioned in front, back, left and right. The packaging press plate 52 descends to fold the right half of the cardboard, and the tilting cylinder 55 retracts, and the right half of the cardboard contacts the packaging press plate. After that, the lower packaging roller 54 rises, and when the tongue piece (with adhesive) on the left half of the cardboard is folded upward, the product pressing block retreats and resets to make way. After that, the upper packaging roller 53 descends, and the tongue piece on the right half of the cardboard is folded downward, so that the tongue piece on the right half of the cardboard is bonded to the left half of the cardboard, forming a sleeve box, and completing the packaging of the product.

[0066] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A device structure for packaging products in a sleeve box, comprising a step-by-step conveyor line (10), a feeding mechanism, a release film separation mechanism (20), a primary folding mechanism (30), a secondary folding mechanism (40), and a packaging shaping mechanism (50) arranged in sequence along the conveying direction of the step-by-step conveyor line, characterized in that: The step-by-step conveyor line (10) comprises a fixed conveying platform (11), a movable conveying frame (12) movably matched on the fixed conveying platform and capable of reciprocating forward and backward motion, and a plurality of pairs of lifting frames (13) arranged on the movable conveying frame, wherein the plurality of pairs of lifting frames are distributed along the conveying direction of the step-by-step conveyor line, and when the lifting frames rise, they protrude upward from the fixed conveying platform, and when they fall, they are lower than the fixed conveying platform; The loading mechanism comprises a vertical loading rack (60) located above the fixed conveying platform and a suction mechanism (70) located below the fixed conveying platform, wherein the suction mechanism can pull the bottommost cardboard in the vertical loading rack down to the fixed conveying platform (11); The release film detachment mechanism (20) comprises a release film clamping jaw (21) and a release film clamping jaw driving component for driving the release film clamping jaw to translate and elevate; The primary folding mechanism (30) comprises a vertical fixed plate (31) located on the right side of the fixed conveying platform (11), and a first movable folding plate (32) located on the right side of the vertical fixed plate and capable of being flipped upwards to be in an upright position, and a gap for accommodating paperboard is provided between the vertical fixed plate and the fixed conveying platform; The refolding mechanism (40) comprises a second movable folding plate (41) located on the right side of the fixed conveying platform (11), and the second movable folding plate can be turned downward from an upright state to an inclined state; The packaging shaping mechanism (50) comprises a packaging vertical cylinder (51) located on the left side of the fixed conveying platform (11), a packaging pressing plate (52) connected to the packaging vertical cylinder, an upper packaging roller (53) arranged on the left side of the packaging pressing plate, and a lower packaging roller (54) arranged on the left side of the fixed conveying platform. The upper packaging roller can be lowered, and the lower packaging roller can be raised.

2. The device structure of the sleeve box packaging product according to claim 1, characterized in that: The step-by-step conveyor line (10) comprises a short conveyor line (101) and a long conveyor line (102) arranged in parallel, and lifting frames (13) are provided on both sides of the short conveyor line and the long conveyor line, and all lifting frames are installed on the movable conveyor frame (12); the release film detachment mechanism (20) is located on the right side of the short conveyor line, the primary folding mechanism (30) and the secondary folding mechanism (40) are located on the right side of the long conveyor line, and the packaging shaping mechanism (50) is located on the left side of the long conveyor line.

3. The device structure of the sleeve box packaging product according to claim 1, characterized in that: The movable conveying frame (12) is connected to the screw mechanism (14), and the screw mechanism and the matching motor are installed on the frame of the fixed conveying platform (11); The movable conveying frame (12) is provided with a lifting frame bracket (131), the lifting frame bracket is provided with a lifting frame vertical guide rail, the lifting frame is movably matched on the lifting frame vertical guide rail, and the lifting frame is provided with a lifting roller (132); the movable conveying frame is provided with a lifting horizontal cylinder (151), the lifting horizontal cylinder is connected to the horizontal strip (15), the horizontal strip is provided with a slope (152), and the roller cooperates with the slope.

4. The device structure of the sleeve box packaging product according to claim 1, characterized in that: The vertical loading rack (60) is in the shape of a three-dimensional frame, and the cardboards stacked up and down are located in the vertical loading rack. A stopper (61) for stopping the cardboards from descending is provided on the vertical loading rack. The suction mechanism (70) comprises a vertical cylinder (71) for suction and a vertical suction cup (72) connected to the vertical cylinder for suction, and the vertical suction cup is located below the vertical loading rack. Two vertical loading racks (60) are arranged front and rear above the fixed conveying platform (11); the material suction mechanism comprises a horizontal cylinder (73) for material suction; and the vertical cylinder (71) for material suction is connected to the horizontal cylinder for material suction.

5. The device structure for packaging products in a sleeve box according to claim 1, characterized in that: The release film clamp (21) adopts a pneumatic clamp, and the release film clamp driving assembly comprises a film tearing rotary cylinder (22) connected to the release film clamp, a film tearing horizontal cylinder (23) connected to the film tearing rotary cylinder, and a film tearing vertical cylinder (24) connected to the film tearing horizontal cylinder.

6. The device structure for packaging products in a sleeve box according to claim 1, characterized in that: A pair of guide and positioning mechanisms (25) are provided on the left and right sides of the step-by-step conveyor line (10), and a front-to-rear guide plate (251) and a positioning vertical cylinder (252) are installed on the guide and positioning mechanism. A gap for accommodating a cardboard is provided between the guide plate and the fixed conveyor platform (11), and a lifting plate (253) is installed on the positioning vertical cylinder. A first pressing block (254) and a second pressing block (255) are provided at both ends of the lifting plate, respectively. The first pressing block and the second pressing block are arranged front and back, and the first pressing block presses on the cardboard at the film tearing station, and the second pressing block presses on the cardboard at the detection station. A detection device (26) for detecting whether there is a release film on the cardboard is provided on the right side of the fixed conveyor platform.

7. The device structure for packaging products in a sleeve box according to claim 1, characterized in that: The vertical fixed plate (31) includes a blocking portion (311) used in conjunction with the first movable folding plate (32), and a limit strip (312) extending forward, the vertical fixed plate is connected to a curved connecting arm (33), and the curved connecting arm is mounted on a folding vertical bracket (34); The first movable folding plate (32) is hinged on the first folding plate stand, the first movable folding plate is hinged to the first folding cylinder (321), and a folding pressing plate mechanism (35) is provided on the left side of the vertical fixed plate (31); The second movable folding plate (41) is located beside the first movable folding plate (32) and above the limit bar (312). The second movable folding plate is hinged on the second folding plate stand. The second movable folding plate is hinged to the second folding cylinder (412) via the tilting plate (411).

8. The device structure for packaging products in a sleeve box according to claim 7, characterized in that: A folding blocking frame (42) is provided on the curved connecting arm (33), and the folding blocking frame cooperates with the second movable folding plate (41) to control the folding angle of the paperboard; The folding blocking frame (42) is movably matched with a telescopic blocking plate (43), which is telescopically telescopic in the front-rear direction through a telescopic cylinder (44) and is located below the packaging pressing plate (52) when extended forward.

9. The device structure for packaging products in a sleeve box according to claim 1, characterized in that: An upper roller cylinder (531) is provided on the packaging pressing plate (52), the upper roller cylinder is connected to an upper roller bracket, and the upper roller for packaging is pivotally connected to the upper roller bracket; a lower roller for packaging (54) is pivotally connected to the lower roller bracket, and the lower roller bracket is connected to a lower roller vertical cylinder (541); The front and rear sides of the packaging pressing plate (52) are provided with tilted cylinders (55), which are connected to tilted pressing blocks (551). When the tilted cylinders are in an extended state, the tilted pressing blocks are lower than the packaging pressing plate.

10. The device structure for packaging products in a sleeve box according to claim 7, characterized in that: An edge baffle (36) is provided on the right side of the fixed conveying platform (11), the edge baffle is located on the right side of the limiting strip (312), and is arranged in parallel with the limiting strip. There is a gap between the edge baffle and the limiting strip for accommodating a cardboard, and the front end of the edge baffle protrudes forward from the limiting strip. A product pressing horizontal cylinder (56) is provided on the left side of the fixed conveying platform (11), the product pressing horizontal cylinder is connected to a product pressing block, and the product pressing block is arranged opposite to the edge baffle (36) of the forward protruding limit strip. A pair of right product clamps (57), a vertical cylinder (571) for the right product clamps for driving the right product clamps to rise and fall, and a pair of left product clamps (58), a vertical cylinder (581) for the left product clamps for driving the left product clamps to rise and fall are provided below the fixed conveying platform (11).

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