Automatic film covering equipment for packaging box

Abstract

The invention relates to the technical field of packaging box film covering processing, in particular to automatic packaging box film covering equipment which comprises a rack, a conveying belt, a film covering device and a positioning and flattening device. The packaging box laminating device has an efficient laminating assembly line mode, through cooperation of the conveying belt and the limiting plate, it can be guaranteed that the packaging box enters the laminating device accurately, the laminating device can evenly attach the packaging box to the outer portion of the packaging box, meanwhile, through cooperation of the edge cutting device, redundant films can be cut off, the edge laminating flatness of the packaging box is improved, and before the packaging box is fed, the packaging box is not prone to falling off. The automatic film laminating machine has the advantages that the automatic film laminating machine can be matched with the intermittent pushing effect of the aligning plates arranged on the two sides to achieve middle feeding and conveying, meanwhile, the adjusted packaging box can be connected with the lower end of the pressing roller to achieve intermittent flattening machining of the whole packaging box, bending and wrinkling are reduced, and therefore the effects of improving the packaging box film laminating automation degree, reducing manual intervention and improving the production efficiency are achieved.

Description

Technical Field

[0001] The present application relates to the field of packaging box laminating processing, and in particular to an automatic packaging box laminating device. Background Art

[0002] The current laminating equipment still has much room for improvement in terms of film flatness, fit, and edge processing.

[0003] Existing semi-automatic laminating machines complete the laminating operation by manually placing the packaging box and starting the machine. They can adapt to packaging boxes of different sizes, but they are inefficient and rely on manual operation, which is prone to errors. Hot-press laminating machines use heating and pressurizing to make the film adhere tightly to the surface of the packaging box. They have good laminating effects, but they have high requirements for temperature control and are prone to damage to the film.

[0004] Regarding the above-mentioned related technologies, the laminating activity of packaging boxes is generally achieved through automatic laminating machines. Automatic laminating machines are a type of equipment used to cover the surface of items with a protective film and are widely used in printing, packaging, manufacturing and other industries.

[0005] However, the automatic laminating machines currently used have low combined processability for the steps of feeding, positioning, laminating, cutting and discharging of packaging box cardboard during use, resulting in low laminating quality of packaging box cardboard, poor flatness and fit. At the same time, during the feeding process, the side edges of the packaging box cardboard are more easily affected by the transmission position, resulting in bending problems, resulting in low side lamination quality during subsequent laminating activities. Summary of the Invention

[0006] The purpose of this application is to provide an automatic film laminating device for packaging boxes to solve the problems raised in the above background technology.

[0007] The present application provides an automatic packaging box laminating equipment that adopts the following technical solution: it includes a frame, which is characterized in that a bracket is provided at the upper end of the frame, a controller is installed at the left front end of the frame, a conveyor belt is installed at the upper end of the bracket, and limit plates are sequentially provided on both sides of the upper end of the bracket, and the limit plates are opposite to the sides of the conveyor belt, and a laminating device is installed in the middle of the upper end of the frame, and a transmission frame is relatively provided on the right side of the frame, and the left side of the transmission frame is rotatably connected to the first guide roller, and the upper end of the transmission frame is respectively provided with a second guide roller and a third guide roller from left to right, and a cutting device is installed on the right side of the upper end of the transmission frame, and the right side of the transmission frame is docked with a receiving frame, and an adjusting frame is installed on the upper end of the receiving frame, cylinders are provided on both sides of the bottom of the adjusting frame, and the telescopic ends of the cylinders are connected to the push plate, a tensioning roller is installed on the upper end of the frame, and the tensioning roller is opposite to the laminating device on the left and right, and a positioning and flattening device is provided on the left side of the frame.

[0008] Preferably, the coating device includes support frames docked at both sides of the middle of the upper end of the frame, a roller installed between the support frames on both sides, a first frame installed at both sides of the upper end of the frame, a first spring arranged on the outer side of the lower end of the first frame, a coating roller docked between the lower ends of the first frames on both sides, a second frame docked at both sides of the upper end of the frame, a second spring installed on the outer side of the lower end of the second frame, a guide roller arranged between the second frames on both sides, a mounting rod fastened to both sides of the upper end of the frame, a third spring connected to the outer side of the lower end of the mounting rod, a connecting rod docked at the lower end of the mounting rod, and a pressure wheel rotatably connected to the lower end of the connecting rod.

[0009] By adopting the above technical solution, the packaging box cardboard to be laminated can be accurately delivered to the laminating area, ensuring that the position of the packaging box cardboard before laminating is accurate, and during the laminating process, the film is evenly covered on the surface of the packaging box cardboard. Subsequently, the excess film is cut off to ensure neat edges and high efficiency of the overall laminating of the packaging box cardboard, thereby improving the degree of automation of packaging box laminating, reducing manual intervention, and improving production efficiency.

[0010] Preferably, the positioning and flattening device includes a feed rack relatively arranged on the left side of the frame, a fixing rack bolted to the upper end of the feed rack, a servo motor installed on one side of the middle of the upper end of the fixing rack, a main bevel gear connected to the output end of the servo motor, a secondary bevel gear engaged on both sides of the main bevel gear, a rotating shaft connected to the middle of the secondary bevel gear and rotatably connected to the upper end of the fixing rack, a first transmission wheel connected to one side of the rotating shaft, a second transmission wheel engaged at the lower end of the first transmission wheel, an alignment component installed on both sides of the upper end of the feed rack and connected to the middle of the second transmission wheel, a transmission roller group respectively arranged on the left and right sides of the upper end of the feed rack, a support plate fixed to the right side of the upper end of the feed rack, and a flattening component relatively arranged on the upper end of the support plate and connected to the middle of the main bevel gear.

[0011] Preferably, the alignment assembly includes a turntable rotatably connected to both sides of the upper end of the feed rack, a connecting shaft docked at the middle of the turntable and connected to the middle of the second transmission wheel, a transmission groove opened inside the turntable, a first connecting shaft inserted into the transmission groove, a swing arm installed at the upper end of the first connecting shaft and rotatably connected to the upper end of the feed rack, a second connecting shaft inserted at the other side of the swing arm, a push-pull plate docked at the lower end of the second connecting shaft, and an alignment plate fastened to the side of the push-pull plate.

[0012] Preferably, the auxiliary bevel gear, the rotating shaft, the first transmission wheel and the second transmission wheel are symmetrically arranged on both sides of the main bevel gear, and the transmission directions of the first transmission wheel and the second transmission wheel on both sides are in opposite states.

[0013] Preferably, the transmission groove is opened in a convex groove shape along the interior of the turntable, and the width of the transmission groove matches the overall diameter of the first connecting shaft.

[0014] Preferably, the push-pull plate is slidably embedded along both sides of the upper end of the feed rack, and a long hollow groove is integrally provided on one side of the push-pull plate where it docks with the second connecting shaft.

[0015] By adopting the above technical solution, the alignment component intermittently pushes the alignment to ensure that the feeding and conveying position of the packaging box cardboard is centered, further enhancing the accuracy of its lamination position and reducing the occurrence of lamination deviation or non-standard phenomenon.

[0016] Preferably, the flattening assembly includes left and right beams symmetrically installed, side plates fixed to the sides of the beams on both sides, a transmission rod docked at the middle of the beams on both sides and connected to the middle of the main bevel gear, a connecting frame docked at the right side of the side plate, a connecting tube installed on both sides of the outer end of the connecting frame, a compression spring built into the connecting tube, a docking shaft inserted into the lower end of the connecting tube, a pressure roller docked at the lower end of the docking shaft, and a flattening structure arranged on one side of the transmission rod and connected to the middle of the connecting frame.

[0017] Preferably, the flattening structure includes a first rotating block connected to one side of the transmission rod, a pin shaft inserted into the upper end of the first rotating block, a bearing connected to the outside of the pin shaft, a clamp installed on the outside of the bearing, a second rotating block connected to the side of the pin shaft, a fixed arm connected to the outside of the second rotating block and connected to the left side of the upper end of the frame, a push-pull shaft fastened to the lower end of the clamp, and a docking plate connected to the lower end of the push-pull shaft and connected to the middle of the connecting frame.

[0018] Preferably, the connecting frame is arranged in a sliding butt-jointed manner on one side close to the side panels on both sides, and the middle portion of the connecting frame is arranged to be concave downward.

[0019] Preferably, the push-pull shaft is vertically fastened to the middle part of the lower end of the clamp, and the lower end of the push-pull shaft is arranged in a smooth spherical shape as a whole.

[0020] By adopting the above technical solution, when the intermittent pushing and alignment activities of the packaging box cardboard are carried out, the packaging box cardboard that has completed the alignment activities can be squeezed and flattened to ensure the flatness of the side edges of the packaging box cardboard, avoid bending and wrinkling of the side edges of the packaging box cardboard due to the alignment push, and ensure the quality of the subsequent lamination of the packaging box cardboard.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The present application forms an efficient packaging box laminating production line by means of a conveyor belt, a laminating device, a first guide roller, a second guide roller, a third guide roller, a trimming device and a receiving frame, so that the packaging box can be accurately conveyed to the lower end of the laminating device for efficient laminating. Moreover, through the transmission and coordination of the first guide roller, the second guide roller and the third guide roller, the laminating-finished packaging box can be quickly entered into the trimming device, thereby achieving the removal of excess film at the edge of the packaging box, improving the laminating flatness and the laminating quality, thereby achieving the goal of improving the degree of automation of packaging box laminating, reducing manual intervention and improving production efficiency. 2. The present application forms an efficient intermittent pushing and aligning structure through the main bevel gear, the secondary bevel gear, the rotating shaft, the first transmission wheel, the second transmission wheel and the alignment component, that is, after the packaging box enters the feed rack, the connecting shaft inside the alignment component can rotate synchronously with the second transmission wheel, so that the synchronous rotation of the turntable can be realized. As the turntable rotates, the transmission groove provided in the turntable can, through its own shape, enable the first connecting shaft inserted into it to drive the externally connected swing arm as the transmission groove rotates, so that the swing arm can achieve intermittent push-pull transmission of the push-pull plate through the docking effect of the second connecting shaft and the push-pull plate. In this way, the alignment plate docked with the side of the push-pull plate will intermittently push and align the packaging box being fed and transported, so that it maintains a centered transmission state, thereby improving the subsequent laminating quality and avoiding the deviation of the packaging box during transmission, which leads to the occurrence of laminating deviation or non-standard problems; 3. The present application sets a flattening component, that is, when the main bevel gear rotates, the synchronous rotation of the transmission rod can also be achieved. As the transmission rod rotates, the first rotating block connected to one side of the transmission rod can rotate at the same time, and the docking effect of the coordinated pin shaft and the second rotating block can make the first rotating block and the second rotating block rotate synchronously. In this way, the coupling effect of the bearing connected to the outer side of the middle part of the pin shaft can make the clamp achieve the up and down reciprocating movement of the connecting frame through the combined push-pull shaft and the docking plate at the bottom. In this way, the pressure roller installed between the docking shafts on both sides will perform intermittent flattening activities on the packaging boxes that have completed intermittent pushing and alignment, so that the packaging boxes can be kept flat during feeding, avoiding the occurrence of external bending and wrinkles, and ensuring the flatness and fit of the subsequent packaging box lamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of this application; Figure 2 It is a partial structural diagram of this application; Figure 3 It is a schematic diagram of the overall structure of the coating device of the present application; Figure 4 This is a schematic diagram of the overall structure of the positioning and flattening device of the present application; Figure 5 It is a schematic diagram of the overall structure of the alignment component of this application; Figure 6 It is a schematic diagram of the overall structure of the flattening component of this application; Figure 7 This application Figure 6 A in the middle is an enlarged structural diagram; Figure 8 It is a schematic diagram of the exploded structure of the flattened structure of this application.

[0023] Explanation of the accompanying symbols: 1. frame; 2. bracket; 3. controller; 4. conveyor belt; 5. limit plate; 6. laminating device; 61. support frame; 62. reel; 63. first frame; 64. first spring; 65. laminating roller; 66. second frame; 67. second spring; 68. guide roller; 69. mounting rod; 610. third spring; 611. connecting rod; 612. pressure wheel; 7. transmission frame; 8. first guide roller; 9. second guide roller; 10. third guide roller; 11. trimming device; 12. receiving frame; 13. adjusting frame; 14. cylinder; 15. push plate; 16. tensioning roller; 17. positioning and flattening device; 171. feeding frame; 172. fixing frame; 173. servo motor; 174. main bevel gear; 175. secondary bevel gear; 176. rotating shaft; 177. first transmission Wheel; 178, second transmission wheel; 179, alignment assembly; 1791, turntable; 1792, connecting shaft; 1793, transmission groove; 1794, first connecting shaft; 1795, swing arm; 1796, second connecting shaft; 1797, push-pull plate; 1798, alignment plate; 1710, transmission roller group; 1711, support plate; 1712, flattening assembly; 17121, beam; 171 22. Side plate; 17123. Transmission rod; 17124. Connecting frame; 17125. Connecting cylinder; 17126. Compression spring; 17127. Docking shaft; 17128. Pressure roller; 18. Flattening structure; 181. First rotating block; 182. Pin; 183. Bearing; 184. Clamp; 185. Second rotating block; 186. Fixed arm; 187. Push-pull shaft; 188. Docking plate. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1 -Attached Figure 8 , further details of this application are given.

[0025] An automatic film laminating device for packaging boxes, referring to Figure 1 、 Figure 2 and Figure 3, including a frame 1, which is characterized in that a bracket 2 is provided at the upper end of the frame 1, a controller 3 is installed at the front end of the left side of the frame 1, a conveyor belt 4 is installed at the upper end of the bracket 2, and limit plates 5 are provided on both sides of the upper end of the bracket 2 in sequence, and the limit plates 5 are opposite to the sides of the conveyor belt 4, a laminating device 6 is installed at the middle part of the upper end of the frame 1, and a transmission frame 7 is provided on the right side of the frame 1. The left side of the transmission frame 7 is rotatably connected to the first guide roller 8, and the upper end of the transmission frame 7 is respectively provided with a second guide roller 9 and a third guide roller 10 from left to right, a trimming device 11 is installed on the right side of the upper end of the transmission frame 7, and a receiving frame 12 is docked on the right side of the transmission frame 7, and an adjusting frame 13 is installed on the upper end of the receiving frame 12. Cylinders 14 are provided on both sides of the bottom of the adjusting frame 13, and the telescopic end of the cylinder 14 is connected to the push plate 15. A tensioning roller 16 is installed on the upper end of the frame 1, and the tensioning roller 16 is opposite to the laminating device 6 on the left and right, and a positioning and flattening device 17 is provided on the left side of the frame 1.

[0026] The coating device 6 includes a support frame 61 docked at both sides of the middle part of the upper end of the frame 1, a reel 62 installed between the support frames 61 on both sides, a first frame body 63 installed at both sides of the upper end of the frame 1, a first spring 64 provided on the outer side of the lower end of the first frame body 63, a coating roller 65 docked between the lower ends of the first frame bodies 63 on both sides, a second frame body 66 docked at both sides of the upper end of the frame 1, a second spring 67 installed on the outer side of the lower end of the second frame body 66, a guide roller 68 provided between the second frame bodies 66 on both sides, a mounting rod 69 fastened to both sides of the upper end of the frame 1, a third spring 610 connected to the outer side of the lower end of the mounting rod 69, a connecting rod 611 docked at the lower end of the mounting rod 69, and a pressure wheel 612 rotatably connected to the lower end of the connecting rod 611.

[0027] The trimming device 11 is a prior art, which uses a cutter to cut off excess packaging film to ensure the neatness of the edges of the packaging box cardboard film. Therefore, its specific structure is not described in detail.

[0028] By adopting the above technical solution, the packaging box cardboard to be laminated can be accurately delivered to the laminating area, ensuring that the position of the packaging box cardboard before laminating is accurate, and during the laminating process, the film is evenly covered on the surface of the packaging box cardboard. Subsequently, the excess film is cut off to ensure neat edges and high efficiency of the overall laminating of the packaging box cardboard, thereby improving the degree of automation of packaging box laminating, reducing manual intervention, and improving production efficiency.

[0029] An automatic film laminating device for packaging boxes, referring to Figure 1 、 Figure 4 and Figure 5The positioning and flattening device 17 includes a feed frame 171 for feeding support provided on the left side of the frame 1, a fixing frame 172 bolted to the left side of the upper end of the feed frame 171, a servo motor 173 installed on the left side of the middle of the upper end of the fixing frame 172, a main bevel gear 174 connected to the output end of the right side of the servo motor 173, and symmetrically meshed with the auxiliary bevel gears 175 on both sides of the outer end of the main bevel gear 174. A rotating shaft 176 correspondingly connected to the middle of the auxiliary bevel gears 175 on both sides and rotatably connected to the upper end of the fixing frame 172, a first transmission wheel 177 connected to the side of the rotating shaft 176 away from the auxiliary bevel gear 175, and meshed with the first transmission wheel 177. The second transmission wheel 178 at the lower end of the driving wheel 177 is installed on both sides of the upper end of the feed rack 171 and is connected to the alignment components 179 in the middle of the second transmission wheels 178 on both sides. In this way, the simultaneous transmission of the alignment components 179 on both sides can be realized to meet the intermittent push and alignment activities of the packaging box cardboard feeding. The transmission roller group 1710 is respectively arranged on the left and right sides of the upper end of the feed rack 171 to assist in the feeding and transmission of the packaging box cardboard. The support plate 1711 for transmission and support cooperation is fixedly connected to the right side of the upper end of the feed rack 171, and the flattening component 1712 is relatively arranged on the upper end of the support plate 1711 and connected to the middle of the main bevel gear 174.

[0030] The alignment assembly 179 includes a turntable 1791 rotatably connected to both sides of the upper end of the feed rack 171, and the turntables 1791 on both sides rotate in opposite directions, a connecting shaft 1792 vertically connected to the middle of the turntable 1791 and connected to the middle of the second transmission wheel 178, a corresponding transmission groove 1793 is opened inside the turntable 1791, and the overall trajectory of the transmission groove 1793 can meet the intermittent push-pull transmission effect, a first connecting shaft 1794 correspondingly inserted into the transmission groove 1793, installed at the upper end of the first connecting shaft 1794 and connected to the feed rack 1 The swing arm 1795 rotatably connected to the upper end of 71 is inserted into the second connecting shaft 1796 on the side of the swing arm 1795 away from the first connecting shaft 1794. In this way, the first connecting shaft 1794, the swing arm 1795 and the second connecting shaft 1796 can realize the composition of a stable intermittent swinging structure, and the push-pull plate 1797 connected to the lower end of the second connecting shaft 1796 is fastened to the alignment plate 1798 on the side of the push-pull plate 1797. The alignment plate 1798 is arranged in a rectangular plate shape as a whole, which can meet the efficient intermittent push and alignment cooperation of the packaging box cardboard feeding.

[0031] The secondary bevel gear 175, the rotating shaft 176, the first transmission wheel 177 and the second transmission wheel 178 are all symmetrically arranged on both sides of the main bevel gear 174, and the transmission directions of the first transmission wheel 177 and the second transmission wheel 178 on both sides are in opposite states, ensuring the synchronization and stability of the intermittent push alignment activities on both sides.

[0032] The transmission groove 1793 is opened in a convex groove shape along the inside of the turntable 1791, and the width of the transmission groove 1793 matches the overall diameter of the first connecting shaft 1794, ensuring that the transmission groove 1793 can realize the intermittent movement of the first connecting shaft 1794 during the rotation process through its own convex groove shape, thereby quickly realizing the intermittent swinging movement of the swing arm 1795.

[0033] The push-pull plate 1797 is slidably embedded along both sides of the upper end of the feed rack 171, and a long hollow groove is integrally provided on the side where the push-pull plate 1797 is docked with the second connecting shaft 1796 to ensure that the second connecting shaft 1796 can move with intermittent swinging and stably push and pull the push-pull plate 1797.

[0034] By adopting the above technical solution, the alignment component 179 pushes the feed intermittently to align, which can ensure that the feeding and conveying position of the packaging box cardboard is centered, further enhance the accuracy of its laminating position, and reduce the occurrence of laminating deviation or non-standard phenomenon.

[0035] An automatic film laminating device for packaging boxes, referring to Figure 1 、 Figure 7 and Figure 8 The flattening assembly 1712 includes a left and right symmetrically installed crossbeam 17121 for enhancing structural stability, and a side plate 17122 symmetrically fixedly connected to the sides of the crossbeam 17121 on both sides, and one end of the side plate 17122 on both sides is fastened to the fixing frame 172. In this way, the crossbeams 17121 on both sides can be combined with the side plates 17122 on both sides to achieve the formation of a stable connection structure, and the transmission rod 17123 is laterally connected to the middle of the crossbeams 17121 on both sides and connected to the middle of the main bevel gear 174. In this way, the transmission rod 17123 can rotate synchronously with the main bevel gear 174 and docking There are a connecting frame 17124 on the right side of the side panels 17122 on both sides, a connecting tube 17125 symmetrically installed on both sides of the outer end of the connecting frame 17124, a compression spring 17126 built into the connecting tube 17125 for providing elastic support, a docking shaft 17127 vertically movably inserted into the lower end of the connecting tube 17125 and connected to the lower end of the compression spring 17126, a pressing roller 17128 docked between the lower ends of the docking shafts 17127 on both sides for flattening the side edges of the packaging box cardboard, and a flattening structure 18 arranged on one side of the transmission rod 17123 and connected to the middle part of the connecting frame 17124.

[0036] The flattening structure 18 includes a first rotating block 181 docked to the right side of the transmission rod 17123, a pin 182 for connection inserted laterally at the upper end of the first rotating block 181, a bearing 183 docked to the outside of the pin 182 to enhance the smoothness of rotation, a clamp 184 installed on the outside of the bearing 183, a second rotating block 185 connected to the right side of the pin 182, and the second rotating block 185 has the same structure as the first rotating block 181, and the bearing 183 and the clamp 184 are located between the second rotating block 185 and the first rotating block 181, a fixed arm 186 docked to the outside of the second rotating block 185 and connected to the left side of the upper end of the frame 1, so as to ensure that the second rotating block 185 as a whole can be in a stable and synchronous rotation state, a push-pull shaft 187 at the lower end of the vertically fastened clamp 184, a docking plate 188 docked to the lower end of the push-pull shaft 187 and connected to the middle of the connecting frame 17124.

[0037] The connecting frame 17124 is arranged in a sliding docking shape near the side panels 17122 on both sides, and the middle part of the connecting frame 17124 is arranged downwardly concave. In this way, the connecting frame 17124 can move up and down smoothly along the sides of the side panels 17122 on both sides to meet the intermittent extrusion effect.

[0038] The push-pull shaft 187 is vertically fastened to the middle of the lower end of the clamp 184, and the lower end of the push-pull shaft 187 is set in a smooth spherical shape as a whole, ensuring that the push-pull shaft 187 can achieve efficient intermittent extrusion transmission cooperation through the movable docking effect of the spherical end at the bottom and the middle of the upper end of the docking plate 188.

[0039] By adopting the above technical solution, when the intermittent pushing and alignment activities of the packaging box cardboard are carried out, the packaging box cardboard that has completed the alignment activities can be squeezed and flattened to ensure the flatness of the side edges of the packaging box cardboard, avoid bending and wrinkling of the side edges of the packaging box cardboard due to the alignment push, and ensure the quality of the subsequent lamination of the packaging box cardboard.

[0040] The implementation principle of the embodiment of this application is: The film that is wound on the outside of the film roller 65 is then adhered to the outside of the film roller 62, and the film that is wound on the outside of the film roller 65 is then adhered to the outside of the film roller 62, thereby achieving continuous film coating. At the same time, after the film roller 65 completes the film coating activity on the film roller 65, it can cooperate with the guide roller 68 to achieve rightward transmission and film coating pressure cooperation, and with the auxiliary transmission of the pressure wheel 612, it can ensure the accurate rightward transmission of the film-coated ... When the belt 4 is output on the right side, the right-hand discharging transmission activity can be realized through the first guide roller 8 provided on the left side of the transmission frame 7 and the second guide roller 9 and the third guide roller 10 provided on the upper end in sequence. When it is transmitted to the inside of the trimming device 11, the trimming device 11 will cut off the excess film to ensure the flatness of the film edge of the packaging box and improve the laminating quality. The packaging box that has completed the trimming will fall to the middle of the upper end of the receiving frame 12 to realize the collection activity. At the same time, the cylinder 14 and the push plate 15 installed on both sides of the lower end of the adjusting frame 13 will cooperate with each other to realize the push and alignment of the collected packaging boxes, thereby improving the overall collection of the film packaging boxes. Secondly, during the laminating process, the film will be connected with the tensioning roller 16. Through the cooperation of the tensioning roller 16, the film tension can be flexibly adjusted to adapt to different laminating conditions, so that the packaging box laminating effect is stable and reliable, and the film flatness and fit are high. 2. Before the packaging box is fed, the packaging box can be placed inside the positioning and flattening device 17, that is, connected to the transmission rollers 1710 provided on the left and right sides of the feeding frame 171, so that the transmission rollers 1710 on both sides cooperate with each other to ensure that the packaging box is smoothly input to the upper end of the conveyor belt 4. When the packaging box is fed and transmitted with the transmission rollers 1710 on both sides, the servo motor 173 provided at the middle part of the upper end of the fixing frame 172 can be driven to make the servo motor 173 realize the rotation of the main bevel gear 174 connected to the output end. As the main bevel gear 174 rotates, the secondary bevel gear 175 engaged with the two sides of the main bevel gear 174 will rotate synchronously in the opposite direction, and cooperate with the corresponding internally connected rotating shaft 176 to realize the synchronous rotation of the first transmission wheel 177 connected on the other side. In this way, the second transmission wheel 178 engaged with the lower end of the first transmission wheel 177 will rotate accordingly to realize the rotation drive of the connecting shaft 1792 connected in the middle. In this way, the connection The turntable 1791 at the bottom of the connecting shaft 1792 will rotate, and during the rotation of the turntable 1791, the first connecting shaft 1794 connected to the transmission groove 1793 opened inside the turntable 1791 will perform intermittent movement through the shape opened by the transmission groove 1793. In this way, as the first connecting shaft 1794 moves, the swing arm 1795 connected to the outer side of the upper end of the first connecting shaft 1794 and rotatably connected to the upper end of the feed rack 171 will realize intermittent swinging movement. In this way, in conjunction with the second connecting shaft 1796 connected on the other side, the intermittent push-pull drive of the push-pull plate 1797 connected at the bottom will be realized. In this way, the alignment plate 1798 installed on one side of the push-pull plate 1797 can realize the intermittent push and alignment of the packaging boxes transmitted between the transmission rollers 1710 on both sides, so that the feeding and transmission position of the packaging boxes is centered, thereby improving the subsequent laminating standard and avoiding the deviation of the packaging box transmission, which leads to the occurrence of laminating deviation or non-standard problems. 3. When the main bevel gear 174 rotates, the transmission rod 17123 connected to the middle part of the right side of the main bevel gear 174 will rotate at the same time. As the transmission rod 17123 rotates, the first rotating block 181 connected to the right side of the transmission rod 17123 will rotate at the same time and cooperate with the pin 182 connected to the upper end to synchronously realize the simultaneous rotation of the second rotating block 185 connected to the right side. As the first rotating block 181 and the second rotating block 185 rotate simultaneously, the bearing 183 located between the first rotating block 181 and the second rotating block 185 and connected to the outer side of the middle part of the pin 182 will drive the external clamp 184, so that the clamp 184 can be connected to the docking plate 188 through the push-pull shaft 187 provided at the bottom, thereby achieving the upward and downward push-pull movement of the connecting frame 17124 as a whole. The connecting frame 17124 as a whole will slide up and down along the right end of the side plates 17122 on both sides. As the connecting frame 17124 slides up and down, the connecting tubes 17125 installed on both sides of the connecting frame 17124 can realize intermittent extrusion of the bottom connecting docking shafts 17127 through the internal compression springs 17126. In this way, the pressure rollers 17128 docked between the docking shafts 17127 on both sides can perform intermittent flattening activities on the packaging boxes transmitted to the upper end of the support plate 1711, thereby improving the flatness of the packaging box feed coating and avoiding the occurrence of bending or wrinkles in the packaging box transmission feed. In this way, the intermittent flattening processing of the packaging box can be realized simultaneously during the process of pushing and aligning the packaging box, which greatly enhances the subsequent overall coating quality of the packaging box and improves the overall production efficiency.

[0041] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. An automatic packaging box laminating device, comprising a frame (1), characterized in that: The upper end of the frame (1) is provided with a bracket (2), the left front end of the frame (1) is provided with a controller (3), the upper end of the bracket (2) is provided with a conveyor belt (4), both sides of the upper end of the bracket (2) are provided with limit plates (5) in sequence, and the limit plates (5) are opposite to the sides of the conveyor belt (4), a laminating device (6) is installed in the middle of the upper end of the frame (1), a transmission frame (7) is provided on the right side of the frame (1), and the left side of the transmission frame (7) is rotatably connected to a first guide roller (8), and the transmission A second guide roller (9) and a third guide roller (10) are respectively provided at the upper end of the frame (7) from left to right, a trimming device (11) is installed on the right side of the upper end of the transmission frame (7), a receiving frame (12) is docked on the right side of the transmission frame (7), an adjusting frame (13) is installed on the upper end of the receiving frame (12), cylinders (14) are provided on both sides of the bottom of the adjusting frame (13), and the telescopic end of the cylinder (14) is connected to the push plate (15), a tensioning roller (16) is installed on the upper end of the frame (1), and the tensioning roller (16) is installed on the upper end of the frame (1). 6) Opposite to the laminating device (6) on the left and right, a positioning and flattening device (17) is provided on the left side of the frame (1), and the laminating device (6) comprises a support frame (61) connected to both sides of the middle of the upper end of the frame (1), a reel (62) installed between the support frames (61) on both sides, a first frame body (63) installed on both sides of the upper end of the frame (1), a first spring (64) provided on the outer side of the lower end of the first frame body (63), and a laminating roller (65) connected between the lower ends of the first frame bodies (63) on both sides. , a second frame (66) docked at both sides of the upper end of the frame (1), a second spring (67) installed on the outer side of the lower end of the second frame (66), a guide roller (68) arranged between the second frame (66) on both sides, a mounting rod (69) fastened to both sides of the upper end of the frame (1), a third spring (610) connected to the outer side of the lower end of the mounting rod (69), a connecting rod (611) docked at the lower end of the mounting rod (69), and a pressure wheel (612) rotatably connected to the lower end of the connecting rod (611).

2. The automatic film laminating equipment for packaging boxes according to claim 1, characterized in that: The positioning and flattening device (17) comprises a feed frame (171) arranged on the left side of the frame (1), a fixing frame (172) bolted to the upper end of the feed frame (171), a servo motor (173) installed on one side of the middle part of the upper end of the fixing frame (172), a main bevel gear (174) connected to the output end of the servo motor (173), a secondary bevel gear (175) meshed with both sides of the main bevel gear (174), a rotating shaft (176) connected to the middle part of the secondary bevel gear (175) and rotatably connected to the upper end of the fixing frame (172), and a servo motor (173) connected to the rotating shaft (174). The invention relates to a first transmission wheel (177) on one side of the feed frame (176), a second transmission wheel (178) meshed with the lower end of the first transmission wheel (177), an alignment assembly (179) installed on both sides of the upper end of the feed frame (171) and connected to the middle of the second transmission wheel (178), a transmission roller group (1710) respectively arranged on the left and right sides of the upper end of the feed frame (171), a support plate (1711) fixedly arranged on the right side of the upper end of the feed frame (171), and a flattening assembly (1712) arranged at the upper end of the support plate (1711) and connected to the middle of the main bevel gear (174).

3. The automatic film laminating equipment for packaging boxes according to claim 2, characterized in that: The alignment component (179) comprises a turntable (1791) rotatably connected to both sides of the upper end of the feed rack (171), a connecting shaft (1792) docked at the middle of the turntable (1791) and connected to the middle of the second transmission wheel (178), a transmission slot (1793) opened inside the turntable (1791), a first connecting shaft (1794) plugged into the transmission slot (1793), a swing arm (1795) installed at the upper end of the first connecting shaft (1794) and rotatably connected to the upper end of the feed rack (171), a second connecting shaft (1796) plugged into the other side of the swing arm (1795), a push-pull plate (1797) docked at the lower end of the second connecting shaft (1796), and an alignment plate (1798) fastened to the side of the push-pull plate (1797).

4. The automatic film laminating equipment for packaging boxes according to claim 2, characterized in that: The flattening assembly (1712) comprises a horizontal beam (17121) symmetrically arranged on the left and right sides, a side plate (17122) fixedly arranged on the sides of the horizontal beam (17121) on both sides, a transmission rod (17123) connected to the middle of the horizontal beam (17121) on both sides and connected to the middle of the main bevel gear (174), a connecting frame (17124) connected to the right side of the side plate (17122), a connecting tube (17125) installed on both sides of the outer end of the connecting frame (17124), a compression spring (17126) built into the connecting tube (17125), a docking shaft (17127) inserted into the lower end of the connecting tube (17125), a pressure roller (17128) connected to the lower end of the docking shaft (17127), and a flattening structure (18) arranged on one side of the transmission rod (17123) and connected to the middle of the connecting frame (17124).

5. The automatic film laminating equipment for packaging boxes according to claim 4, characterized in that: The flattening structure (18) comprises a first rotating block (181) connected to one side of the transmission rod (17123), a pin shaft (182) inserted into the upper end of the first rotating block (181), a bearing (183) connected to the outer side of the pin shaft (182), a clamp (184) installed on the outer side of the bearing (183), a second rotating block (185) connected to the side of the pin shaft (182), a fixed arm (186) connected to the outer side of the second rotating block (185) and connected to the left side of the upper end of the frame (1), a push-pull shaft (187) fastened to the lower end of the clamp (184), and a docking plate (188) connected to the lower end of the push-pull shaft (187) and connected to the middle of the connecting frame (17124).

6. The automatic film laminating equipment for packaging boxes according to claim 2, characterized in that: The secondary bevel gear (175), the rotating shaft (176), the first transmission wheel (177) and the second transmission wheel (178) are all symmetrically arranged along the two sides of the main bevel gear (174), and the transmission directions of the first transmission wheel (177) and the second transmission wheel (178) on the two sides are in opposite states.

7. The automatic film laminating equipment for packaging boxes according to claim 3, characterized in that: The transmission groove (1793) is opened in a convex groove shape along the inside of the rotating disk (1791), and the width of the transmission groove (1793) matches the overall diameter of the first connecting shaft (1794).

8. The automatic film laminating equipment for packaging boxes according to claim 3, characterized in that: The push-pull plate (1797) is slidably embedded along both sides of the upper end of the feed frame (171), and a long hollow groove is integrally formed on one side of the push-pull plate (1797) where it is connected to the second connecting shaft (1796).

9. The automatic film laminating equipment for packaging boxes according to claim 4, characterized in that: The connecting frame (17124) is arranged in a sliding butt joint shape close to one side of the side panels (17122) on both sides, and the middle part of the connecting frame (17124) is arranged to be concave downward.

10. The automatic film laminating equipment for packaging boxes according to claim 5, characterized in that: The push-pull shaft (187) is vertically and firmly connected to the middle part of the lower end of the clamp (184), and the lower end of the push-pull shaft (187) is configured in a smooth spherical shape as a whole.

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