Labeling machine and labeling equipment

Abstract

The invention belongs to the technical field of paper mold blank labeling. According to the labeling machine, the driving device provided with the driving motor, the gear transmission structure and the belt transmission mechanism is arranged, and the gear transmission structure is connected among the driving motor, the label paper adsorption rotary drum device, the label paper pressing mechanism and the conveying mechanism, so that when the driving motor drives the adsorption rotary drum body to operate, the label paper can be adsorbed; the label pressing mechanism and the conveying mechanisms are synchronously driven to work, and the belt transmission mechanism is connected between the conveying mechanisms and the transfer mechanism, so that when the conveying mechanisms are driven to operate, the transfer mechanism is synchronously driven to transfer labels on the storage mechanism to the conveying mechanisms; therefore, one driving motor drives the label paper adsorption drum device, the label paper pressing mechanism, the conveying mechanism and the transfer mechanism to synchronously run, and the full-process continuous operation that after the label paper is transferred to the conveying mechanism through the transfer mechanism from the storage mechanism, the label paper is received by the adsorption drum body and subjected to glue brushing, and finally the label paper is attached to a paper mold blank is achieved.

Description

Technical Field

[0001] This invention belongs to the field of labeling technology for paper mold blanks, specifically relating to labeling machines and labeling equipment. Background Technology

[0002] Existing paper mold blanks, such as egg cartons, typically require labeling before being supplied as finished products to serve as advertising or packaging for the product's appearance. Current labeling equipment generally requires several steps, including conveying, positioning, gluing, and labeling, to complete the labeling process. In the labeling process, the labeling machine itself has a separate drive unit for the label feeding mechanism, conveying mechanism, label suction drum, and label pressing mechanism. Furthermore, the connection between these mechanisms requires sensors, meaning downstream mechanisms need to receive signals before continuing operation. This results in intermittent pauses during labeling between mechanisms and on each paper mold blank, leading to low labeling efficiency. Summary of the Invention

[0003] The purpose of this invention is to overcome the problems of existing labeling machines, where the label feeding mechanism, conveying mechanism, label adsorption drum, and label pressing mechanism are all equipped with separate drive devices, and the connection between each mechanism requires the use of sensors, resulting in low working efficiency and high cost of the labeling machine. This invention provides a labeling machine and labeling equipment that improves working efficiency and reduces manufacturing costs.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The labeling machine includes a conveying mechanism, a label feeding mechanism, a label adsorption drum, a glue applicator, a label pressing mechanism, and a drive unit.

[0006] The conveying mechanism includes a conveying frame and conveying components, a driving wheel and a driven wheel disposed on the conveying frame. The driving wheel is rotatably connected to the conveying frame via a first transmission shaft. The conveying components are respectively wound around the driving wheel and the driven wheel. The upper surface of the conveying components is used to convey the label paper in the downstream direction.

[0007] The label feeding mechanism includes a storage mechanism and a transfer mechanism. The storage mechanism includes a material storage rack and a material stacking channel on the material storage rack for stacking labels. The storage mechanism is used to store labels. The transfer mechanism is used to place the labels from the storage mechanism one by one onto the upstream end of the conveyor. The material stacking channel has an inlet and an outlet on both sides. The outlet is surrounded by limiting baffles to prevent labels from falling. The transfer mechanism is located on the outlet side of the material stacking channel and is used to connect the outlet and the upstream end of the conveyor. The transfer mechanism includes a suction cup assembly for adsorbing labels from the outlet and a transfer transmission mechanism. The transfer transmission mechanism includes a drive disk, a drive rod, and a flipping guide structure. The two ends of the suction cup assembly are rotatably connected to the flipping guide structure. The flipping guide structure is set on the material storage rack and is drivenly connected to the suction cup assembly. The drive disk is rotatably connected to the storage rack, and its outer side is drivenly connected to the flipping guide structure through the drive rod, so that when the drive disk rotates in the same direction, the suction cup assembly can perform periodic back-and-forth flipping work between the outlet and the upstream end of the conveyor.

[0008] The label adsorption drum is located on the lower side of the downstream end of the label feeding mechanism. It includes a mounting frame and an adsorption drum body rotatably connected to the mounting frame via a first rotating shaft. The adsorption drum body has several adsorption stations along its outer periphery, and the bottom of each adsorption station has an adsorption hole.

[0009] The glue applicator is located on the side of the label adsorption drum and is used to apply adhesive to the labels flowing through the adsorption station.

[0010] The label pressing mechanism is located on the lower side of the label adsorption drum and is rotatably connected to the mounting frame via a second rotating shaft. Its outer periphery is provided with a pressing part with an arc-shaped surface, which is used to press the flowing paper mold blank from the bottom to the label paper located on the upper side of the adsorption station.

[0011] The drive device includes a drive motor, a gear transmission structure, and a belt transmission mechanism. The gear transmission structure includes a first drive wheel located at the front end of the first rotating shaft and a first follower wheel located at the rear end, a second follower wheel located at the rear end of the second rotating shaft and meshing with the first follower wheel, and a third follower wheel located at the rear end of the first transmission shaft and meshing with the first follower wheel. The drive disk is equipped with a second transmission shaft that is connected to it. The second transmission shaft and the first transmission shaft are connected by a belt transmission mechanism. The drive motor is used to drive the first drive wheel to rotate relative to each other.

[0012] Compared with the prior art, the labeling machine of the present invention, by setting up a drive device with a drive motor, a gear transmission structure and a belt transmission mechanism, and connecting the gear transmission structure between the drive motor, the label adsorption drum, the label pressing mechanism and the conveying mechanism, allows the drive motor to drive the adsorption drum to operate simultaneously, and simultaneously drive the label pressing mechanism and the conveying mechanism to work. Furthermore, by connecting the conveying mechanism and the transfer mechanism, the belt transmission mechanism allows the transfer mechanism to transfer the label from the storage mechanism to the conveying mechanism when the conveying mechanism is driven to operate. Thus, a single drive motor can drive the label adsorption drum, the label pressing mechanism and the conveying mechanism to operate synchronously. This achieves a continuous process where the label is transferred from the storage mechanism to the conveying mechanism, received by the adsorption drum, glued, and finally affixed to the paper mold blank. This significantly improves the labeling efficiency of the paper mold blank, simplifies the equipment structure and reduces manufacturing costs.

[0013] Furthermore, the conveying components, driving wheels, and driven wheels are provided in two sets. The driven wheels are rotatably connected to the conveyor frame via a second transmission shaft. The upper surface of the conveyor frame is provided with three conveyor platforms arranged at intervals along the length direction. The conveying components are correspondingly located between adjacent conveyor platforms. Each of the two conveying components is a transmission chain, and the upper surface of the transmission chain is at the same height as the upper surface of the conveyor platform. By setting two sets of synchronously operating conveying components, driving wheels, and driven wheels, and using transmission chains as conveying components, a stable conveying plane is formed in conjunction with the three spaced-apart conveyor platforms. This ensures that the upper surface of the transmission chain is at the same height as the conveyor platform, which not only enhances the load-bearing capacity and operational stability of the conveying mechanism, ensuring that the label paper remains flat and does not shift during the conveying process, but also improves the conveying power and synchronization through the double-chain transmission structure, effectively preventing the label paper from slipping or misaligning during high-speed conveying, thereby further improving the continuous operation reliability and labeling accuracy of the labeling machine.

[0014] Furthermore, the flipping guide structure includes a synchronizing rod, two sets of linkage frames, and a flipping drive arm. One linkage frame includes two arms, a first swing arm and a second swing arm, connected at their ends and forming a certain angle. The other linkage frame includes a third swing arm. The suction cup assembly is rotatably connected to the outer ends of the second and third swing arms, respectively. The rotation center of the linkage frame is rotatably connected to the material storage rack. The rotation centers of the two linkage frames are synchronously linked by the synchronizing rod to achieve synchronous rotation of the two linkage frames. The end of the drive rod is rotatably connected to the outer end of the first swing arm. One end of the flipping drive arm is rotatably connected to the material storage rack, and the other end of the flipping drive arm is fixedly connected to the suction cup assembly. This allows the suction cup assembly to swing relative to the linkage frame when it drives the linkage frame, and the flipping drive arm then links the suction cup assembly to rotate relative to the linkage frame. The suction cup assembly, after picking up the label paper at the outlet above the conveying mechanism, rotates to the lower side to release the label paper onto the conveying mechanism. By setting up a flipping guide structure consisting of a synchronizing rod, two sets of linkage frames, and a flipping drive arm, and utilizing the angled linkage design between the first and second swing arms, along with the transmission connection between the drive rod and the flipping drive arm, the suction cup assembly can synchronously complete the flipping action after picking up the label paper. This ensures that the label paper, after being picked up from the outlet, can be accurately rotated and stably released onto the conveying mechanism. This structure not only achieves synchronous coordination between the periodic reciprocating motion and rotational release of the suction cup assembly, improving the accuracy and stability of label paper transfer, but also simplifies the design of the transmission structure, reduces vibration and deviation during movement, thereby improving the reliability and efficiency of continuous operation of the labeling machine.

[0015] Furthermore, the belt drive mechanism includes a first pulley located at the front end of the first drive shaft, a second pulley located at the front end of the second drive shaft, and a drive belt wound around the second pulley and the second pulley. The drive belt is equipped with a tensioner. With this configuration, the belt drive mechanism is simple to set up and has a good transmission effect.

[0016] Furthermore, the rear end of the second drive shaft is connected to the drive disk via a commutator. By setting a commutator at the rear end of the second drive shaft to connect with the drive disk, the drive disk can achieve more flexible power transmission and directional control, ensuring that the flipping motion of the suction cup assembly is precisely matched with the conveying rhythm of the conveying mechanism, thereby improving the synchronization and stability of label transfer. At the same time, the use of the commutator optimizes the transmission path, simplifies the mechanical structure layout, makes the overall transmission system more compact and efficient, reduces energy loss during equipment operation, and further enhances the reliability and working efficiency of the labeling machine.

[0017] Furthermore, the upper and lower ends of the conveyor platform extend outward from the outside of the conveyor and extend to the top of the adsorption drum to form a guide slope. The mounting frame is rotatably connected to the upper side of the guide slope. By extending the conveyor platform outward from the conveyor and forming the guide slope, the label can smoothly transition to the top of the adsorption drum under the vacuum adsorption of the adsorption drum, avoiding conveying interruption or deviation. At the same time, the roller is set above the guide slope to ensure that the label is tightly attached to the adsorption position of the adsorption drum, preventing the label from lifting or misaligning, thereby improving the stability and positioning accuracy of label transfer, making the subsequent gluing and pressing processes more precise and reliable, and ultimately improving the labeling quality and production efficiency.

[0018] Furthermore, the first, second, and third follower wheels are gears, and the first drive wheel is a sprocket. The first drive wheel is connected to the drive sprocket at the output end of the drive motor via a drive chain. This configuration, using a chain drive to connect the drive motor and the first drive wheel, along with the gear-engaged first, second, and third follower wheels, achieves high efficiency and reliability in power transmission, ensuring the accuracy of synchronous operation of each mechanism. The chain drive structure has stronger load capacity and impact resistance, making it particularly suitable for labeling machines that require frequent start-stop and speed changes. Simultaneously, the gear meshing transmission ensures strict synchronization of the rotational speeds of each shaft, coordinating the conveying, drum adsorption, and pressing actions, thereby significantly improving labeling accuracy and equipment operational stability.

[0019] Furthermore, the surface of the adsorption station is arc-shaped, and four adsorption stations are evenly distributed around the outer circumference of the label adsorption drum. The adsorption stations of the adsorption drum rotate circumferentially along the direction of the conveying mechanism, the glue applicator, and the label adsorption drum. With this arrangement, by evenly distributing four arc-shaped adsorption stations around the outer circumference of the adsorption drum, the label paper forms a continuous and stable circumferential flow between the conveying, glue applicator, and pressing processes. The cyclical design of the four stations achieves seamless connection between each process, allowing the equipment to complete four complete labeling actions within a single rotation cycle, significantly improving labeling efficiency. At the same time, the arc-shaped adsorption surface naturally fits the curved surface of the paper mold blank, and the circumferential rotation method ensures that the label paper is subjected to uniform force during glue applicator and pressing processes, avoiding the generation of air bubbles or wrinkles. Thus, even under high-speed operating conditions, it can still ensure excellent labeling flatness and adhesion.

[0020] Furthermore, the pressing section is equipped with multiple points along its circumference, and the linear velocity of the pressing section during rotation is designed to be the same as that of the adsorption station. By setting multiple pressing points along the circumference of the pressing section and synchronizing its rotational linear velocity with that of the adsorption station, complete speed matching between the label and the paper mold blank during the pressing process is achieved, completely eliminating the label paper displacement, stretching deformation, or wrinkling caused by speed differences in traditional labeling machines. The design of multiple pressing points ensures that each labeling action can obtain a uniform and stable pressure distribution, which not only improves the accuracy of the labeling position but also ensures that the adhesive fully penetrates under pressure, enabling the label and the blank to achieve better bonding strength. At the same time, this dynamically balanced pressing method allows the equipment to maintain low vibration and low noise operating characteristics even when working continuously at high speed.

[0021] Furthermore, the suction cup assembly includes a rotating rod and several suction cup components arranged along the length of the rotating rod. By setting multiple suction cup components arranged along the length of the rotating rod, the label can be evenly adsorbed at multiple points during the transfer process, effectively preventing the label from bending, shifting, or falling off during high-speed flipping and transfer. The rotating rod structure allows the suction cup assembly to maintain overall synchronous movement during flipping, ensuring that the label remains flat. At the same time, the distribution design of multiple suction cup components can flexibly adjust the adsorption position according to different sizes of label, which not only improves the adaptability to different specifications of label, but also ensures the stability and accuracy of the label transfer process from the discharge port to the conveying mechanism, thereby significantly improving labeling quality and production efficiency.

[0022] The labeling equipment includes a conveying platform and a feeding mechanism arranged along the conveying direction of the conveying platform, a labeling machine, a label pressing mechanism, and a stacking mechanism; the feeding mechanism is used to place unlabeled paper mold blanks one by one on the conveying platform, the labeling machine is used to apply adhesive to the label paper and stick it on the paper mold blank, the label pressing mechanism is used to press the labels extending from both sides of the paper mold blank onto both sides of the paper mold blank, and the stacking mechanism is used to stack the labeled paper mold blanks. Attached Figure Description

[0023] Figure 1 A diagram of a labeling machine Figure 1 .

[0024] Figure 2 for Figure 1 A magnified view of the central rectangular region.

[0025] Figure 3 A diagram of a labeling machine Figure 2 .

[0026] Figure 4 A schematic diagram of the material removal mechanism for a labeling machine.

[0027] Figure 5 This is a schematic diagram of a labeling device.

[0028] Labeling Explanation: 1. Conveying Mechanism; 2. Label Feeding Mechanism; 3. Label Adsorption Drum; 4. Label Pressing Mechanism; 5. Drive Unit; 11. Conveying Component; 12. Driven Wheel; 13. First Drive Shaft; 14. Second Drive Shaft; 15. Conveying Frame; 21. Storage Mechanism; 22. Transfer Mechanism; 211. Material Storage Rack; 212. Material Stacking Channel; 213. Inlet; 214. Outlet; 215. Limiting Baffle; 221. Suction Cup Assembly; 222. Drive Disc; 223. Drive Rod; 31. Mounting Frame; 32. First Rotating Shaft; 33. Adsorption Drum Body; 34. Adsorption Station; 341. Adsorption Hole; 41. Second Rotating Shaft. 42, pressing part, first drive wheel 51, first follower wheel 52, second follower wheel 53, third follower wheel 54, conveyor table 16, synchronous rod 23, flip drive arm 24, linkage frame 25, first swing arm 251, second swing arm 252, third swing arm 253, first pulley 551, second pulley 552, transmission belt 553, tension wheel 554, commutator 224, guide slope 161, rolling wheel 162, rotating rod 2211, suction cup 2212, conveyor platform 61, feeding mechanism 62, labeling machine 63, stacking mechanism 64, label pressing mechanism 65. Detailed Implementation

[0029] The specific embodiments of the present invention are described below with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the present invention.

[0030] Example 1:

[0031] See Figures 1 to 5 The labeling machine 63 of the present invention includes a conveying mechanism 1, a label feeding mechanism 2, a label adsorption drum 3, a glue brush (not shown), a label pressing mechanism 4, and a driving device 5.

[0032] The conveying mechanism 1 includes a conveying frame 15 and a conveying component 11, a drive wheel (not shown) and a driven wheel 12 disposed on the conveying frame 15. The drive wheel is rotatably connected to the conveying frame 15 via a first transmission shaft 13. The conveying component 11 is respectively wound around the drive wheel and the driven wheel 12. The upper surface of the conveying component 11 is used to convey the label paper in the downstream direction.

[0033] The label feeding mechanism 2 includes a storage mechanism 21 and a transfer mechanism 22. The storage mechanism 21 includes a material storage rack 211 and a material stacking channel 212 for stacking labels, which is provided on the material storage rack 211. There are one or more material stacking channels 212. The two ends of the material stacking channel 212 are respectively provided with an inlet 213 and an outlet 214. The outlet 214 is surrounded by limiting baffles 215 to prevent the labels from falling. The transfer mechanism 22 is located on one side of the outlet 214 of the material stacking channel and is used to connect the outlet 214 and the upstream end of the conveyor 11. The transfer mechanism 22 includes a suction cup assembly for adsorbing the labels from the outlet 214. 221 and a transfer transmission mechanism, the transfer transmission mechanism includes a drive disk 222, a drive rod 223 and a flipping guide structure. The two ends of the suction cup assembly 221 are rotatably connected to the flipping guide structure. The flipping guide structure is set on the material storage rack 211 and is connected to the suction cup assembly 221 in a transmission connection. The drive disk 222 is rotatably connected to the storage rack. Its outer side is connected to the flipping guide structure in a transmission connection through the drive rod 223, so that when the drive disk 222 rotates in the same direction, the suction cup assembly 221 can perform periodic back-and-forth flipping work between the discharge port 214 and the upstream end of the conveyor 11, so as to place the label on the storage mechanism 21 at the upstream end of the conveyor 11 for conveying.

[0034] The label adsorption drum 3 is located on the lower side of the downstream end of the label feeding mechanism 2. It includes a mounting frame 31 and an adsorption drum body 33 rotatably connected to the mounting frame 31 via a first rotating shaft 32. The adsorption drum body 33 has several adsorption stations 34 along its outer periphery. The bottom of the adsorption station 34 is provided with an adsorption hole 341. The adsorption hole 341 is equipped with a vacuum pumping device (not shown) for generating a vacuum adsorption function.

[0035] The glue applicator (not shown in the figure) is located on the side of the label adsorption drum 3 and is used to apply adhesive to the labels flowing through the adsorption station 34.

[0036] The label pressing mechanism 4 is located below the label adsorption drum 3 and is rotatably connected to the mounting frame 31 via the second rotating shaft 41. Its outer periphery is provided with a pressing part 42 with an arc-shaped surface, which is used to adhere and press the paper mold blank flowing through from the bottom to the label paper located above it and flowing through the adsorption station 34. The labeling machine is externally equipped with a conveying platform 61 for inputting the paper mold blank. The conveying platform is designed to convey the paper mold blank to the label pressing mechanism 4 at the same frequency as the rotational action frequency of the pressing part 42 for adhering and pressing the paper mold blank and the label paper.

[0037] The drive device 5 includes a drive motor (not shown), a gear transmission structure, and a belt transmission mechanism. The gear transmission structure includes a first drive wheel 51 located at the front end of the first rotating shaft 32 and a first follower wheel 52 located at the rear end, a second follower wheel 53 located at the rear end of the second rotating shaft 41 and meshing with the first follower wheel 52, and a third follower wheel 54 located at the rear end of the first transmission shaft 13 and meshing with the first follower wheel 52. The drive disk 222 is equipped with a second transmission shaft 14 (not shown) that is connected to it. The second transmission shaft 14 and the first transmission shaft 13 are connected by a belt transmission mechanism. The drive motor is used to drive the first drive wheel 51 to rotate relative to each other.

[0038] Compared with the prior art, the labeling machine 63 of the present invention, by setting up a drive device 5 with a drive motor, a gear transmission structure and a belt transmission mechanism, and connecting the gear transmission structure between the drive motor, the label adsorption drum 3, the label pressing mechanism 4 and the conveying mechanism 1, so that when the drive motor drives the adsorption drum 33 to operate, it simultaneously drives the label pressing mechanism 4 and the conveying mechanism 1 to work, and the belt transmission mechanism is connected between the conveying mechanism 1 and the transfer mechanism 22, so that when the conveying mechanism 1 is driven to operate, it simultaneously drives the transfer mechanism 22 to transfer the label paper on the storage mechanism 21 to the conveying mechanism 1. Thus, one drive motor can drive the label adsorption drum 3, the label pressing mechanism 4 and the conveying mechanism 1 and the transfer mechanism 22 to operate synchronously, thereby realizing a continuous operation of the whole process after the label paper is transferred from the storage mechanism 21 to the conveying mechanism 1 by the transfer mechanism 22, received by the adsorption drum 33, and then applied with glue and finally affixed to the paper mold blank. This significantly improves the labeling efficiency of the paper mold blank, simplifies the equipment structure and reduces the manufacturing cost.

[0039] See Figures 1 to 4 In one embodiment, the conveying component 11, driving wheel, and driven wheel 12 are provided in two sets. The driven wheel 12 is rotatably connected to the conveying frame 15 through the second transmission shaft 14. The upper surface of the conveying frame 15 is provided with three conveying platforms 16 arranged at intervals along the length direction. The conveying component 11 is correspondingly arranged between adjacent conveying platforms 16. Each of the two conveying components 11 is a transmission chain, and the upper surface of the transmission chain is at the same height as the upper surface of the conveying platform 16. By setting two sets of synchronously operating conveying components 11, driving wheel, and driven wheel 12, and using transmission chains as conveying components 11, a stable conveying plane is formed in conjunction with the three spaced-apart conveying platforms 16. This ensures that the upper surface of the transmission chain is at the same height as the conveying platform 16, which not only enhances the load-bearing capacity and operational stability of the conveying mechanism 1 and ensures that the label paper remains flat and does not shift during the conveying process, but also improves the conveying power and synchronization through the double chain transmission structure, effectively preventing the label paper from slipping or misaligning during high-speed conveying, thereby further improving the continuous operation reliability and labeling accuracy of the labeling machine.

[0040] See Figures 1 to 4 In one embodiment, the flipping guide structure includes a synchronizing rod 23, two sets of linkage frames 25, and a flipping drive arm 24. One linkage frame 25 includes two first swing arms 251 and second swing arms 252 connected at their ends and forming a certain angle. The other linkage frame 25 includes a third swing arm 253. The suction cup assembly 221 is rotatably connected to the outer ends of the second swing arms 252 and the third swing arms 253 on both sides, respectively. The rotation center of the linkage frame 25 is rotatably connected to the material storage rack 211. The rotation centers of the two linkage frames 25 are synchronously linked by the synchronizing rod 23 to achieve synchronous rotation of the two linkage frames 25. The end of the drive rod 223 is rotatably connected to the outer end of the first swing arm 251. One end of the flipping drive arm 24 is rotatably connected to the material storage rack 211, and the other end of the flipping drive arm 24 is fixedly connected to the suction cup assembly 221, so that when the linkage frame 25 drives the suction cup assembly 221 to swing relative to each other, the flipping guide structure can achieve synchronous rotation of the two linkage frames 25. The rotating drive arm 24 and the suction cup assembly 221 rotate relative to each other, so that the suction cup assembly 221 picks up the label paper at the discharge port 214 above the conveying mechanism 1 and rotates to the lower side to release the label paper onto the conveying mechanism 1. By setting up a flipping guide structure composed of a synchronizing rod 23, two sets of linkage frames 25 and a flipping drive arm 24, and utilizing the angle linkage design of the first swing arm 251 and the second swing arm 252, and the transmission connection between the drive rod 223 and the flipping drive arm 24, the suction cup assembly 221 can complete the flipping action synchronously after picking up the label paper. This ensures that the label paper can be accurately rotated and stably released onto the conveying mechanism 1 after being picked up from the discharge port 214. This structure not only realizes the synchronous coordination of the periodic reciprocating motion and rotational release of the suction cup assembly 221, improving the accuracy and stability of the label paper transfer, but also simplifies the design of the transmission structure, reduces vibration and deviation during the movement, thereby improving the reliability and efficiency of the labeling machine in continuous operation.

[0041] See Figures 1 to 4 In one embodiment, the belt drive mechanism includes a first pulley 551 located at the front end of the first drive shaft 13, a second pulley 552 located at the front end of the second drive shaft 14, and a drive belt 553 wound around the second pulley 552 and the second pulley 552. The drive belt 553 is equipped with a tensioner 554. With this arrangement, the belt drive mechanism is simple to set and has a good transmission effect.

[0042] See Figures 1 to 4In one embodiment, the rear end of the second drive shaft 14 is connected to the drive disk 222 via a commutator 224. By setting the commutator 224 at the rear end of the second drive shaft 14 to connect with the drive disk 222, the drive disk 222 can achieve more flexible power transmission and direction control, ensuring that the flipping motion of the suction cup assembly 221 is precisely matched with the conveying rhythm of the conveying mechanism 1, thereby improving the synchronicity and stability of label transfer. At the same time, the use of the commutator 224 optimizes the transmission path, simplifies the mechanical structure layout, makes the overall transmission system more compact and efficient, reduces energy loss during equipment operation, and further enhances the reliability and working efficiency of the labeling machine.

[0043] See Figures 1 to 4 In one embodiment, the downstream end of the upper surface of the conveyor table 16 extends outward from the conveyor 11 and extends to the top of the adsorption drum 33 to form a guide slope 161. The mounting frame 31 is rotatably connected to a roller 162 on the upper side of the guide slope 161. The roller 162 is used to shape and flatten the label paper flowing to the guide slope 161. By extending the conveyor table 16 outward from the conveyor 11 and forming the guide slope 161, the label paper can smoothly transition to the top of the adsorption drum 33 under the vacuum adsorption of the adsorption drum 33, avoiding interruption or deviation of the conveying. At the same time, the roller 162 is set above the guide slope 161 to ensure that the label paper fits tightly against the adsorption station 34 of the adsorption drum 33, preventing the label paper from lifting or misaligning, thereby improving the stability and positioning accuracy of the label paper transfer, making the subsequent gluing and pressing processes more accurate and reliable, and ultimately improving the labeling quality and production efficiency.

[0044] See Figures 1 to 4 In one embodiment, the first follower wheel 52, the second follower wheel 53, and the third follower wheel 54 are gears, and the first drive wheel 51 is a sprocket. The first drive wheel 51 is connected to the drive sprocket (not shown) at the output end of the drive motor via a drive chain (not shown). With this configuration, by using a chain drive to connect the drive motor and the first drive wheel 51, and cooperating with the gears in the first follower wheel 52, the second follower wheel 53, and the third follower wheel 54, high efficiency and reliability of power transmission are achieved, ensuring the accuracy of synchronous operation of each mechanism. The chain drive structure has stronger load capacity and impact resistance, and is particularly suitable for labeling machines that require frequent start-stop and speed changes. At the same time, the gear meshing transmission ensures strict synchronization of the rotation speed of each shaft, making the conveying, drum adsorption, and pressing actions coordinated and consistent, thereby significantly improving labeling accuracy and equipment operation stability.

[0045] See Figures 1 to 4In one embodiment, the surface of the adsorption station 34 is arc-shaped, and four adsorption stations 34 are evenly distributed around the outer periphery of the label adsorption drum 33. The adsorption stations 34 of the adsorption drum 33 rotate circumferentially along the direction of the conveying mechanism 1, the glue brush, and the label adsorption drum 3. With this arrangement, by evenly distributing four arc-shaped adsorption stations 34 around the outer periphery of the adsorption drum 33, the label paper forms a continuous and stable circumferential flow between the conveying, glue brushing, and pressing processes. The cyclical design of the four stations realizes the seamless connection of each process, enabling the equipment to complete four complete labeling actions in a single rotation cycle, significantly improving labeling efficiency. At the same time, the arc-shaped adsorption surface naturally fits the curved surface of the paper mold blank, and the circumferential rotation method ensures that the label paper is subjected to uniform force during the glue brushing and pressing process, avoiding the generation of air bubbles or wrinkles, thereby ensuring excellent labeling flatness and adhesion even under high-speed operation conditions.

[0046] See Figures 1 to 4 In one embodiment, the pressing part 42 is provided with multiple points along the circumference, for example, two or four are evenly distributed. The pressing part 42 is designed so that its linear velocity during rotation is the same as that of the adsorption station 34. By setting multiple pressing points in the circumference of the pressing part 42 and synchronizing its rotational linear velocity with that of the adsorption station 34, complete speed matching between the label and the paper mold blank during the pressing process is achieved, completely eliminating the label paper displacement, stretching deformation or wrinkling caused by speed difference in traditional labeling machines. The design of multiple pressing points ensures that each labeling action can obtain a uniform and stable pressure distribution, which not only improves the accuracy of the labeling position, but also ensures that the adhesive fully penetrates under pressure, so that the label and the blank achieve better bonding strength. At the same time, this dynamic balance pressing method enables the equipment to maintain low vibration and low noise operating characteristics even when working continuously at high speed.

[0047] See Figures 1 to 4 In one embodiment, the suction cup assembly 221 includes a rotating rod 2211 and a plurality of suction cup components 2212 arranged along the length of the rotating rod 2211. By setting a plurality of suction cup components 2212 arranged along the length of the rotating rod 2211, the label can be uniformly adsorbed at multiple points during the transfer process, effectively preventing the label from bending, shifting or falling off during high-speed flipping and transfer. The structure of the rotating rod 2211 enables the suction cup assembly 221 to maintain overall synchronous movement when flipping, ensuring that the label is always in a flat state. At the same time, the distribution design of the multiple suction cup components 2212 can flexibly adjust the adsorption position according to different sizes of label, which not only improves the adaptability to different specifications of label, but also ensures the stability and accuracy of the label transfer process from the discharge port 214 to the conveying mechanism 1, thereby significantly improving the labeling quality and production efficiency.

[0048] In one embodiment, the paper mold blank is, for example, a lunch box or an egg carton.

[0049] Example 2:

[0050] See Figures 1 to 5 The main purpose of this embodiment is to provide a labeling device for the labeling machine 63 of the first embodiment, including a conveying platform 61 and a feeding mechanism 62 arranged along the conveying direction of the conveying platform 61, the labeling machine 63, the label pressing mechanism 65, and the stacking mechanism 64; the feeding mechanism 62 is used to place the stacked unlabeled paper mold blanks one by one on the conveying platform 61, the labeling machine 63 is used to apply adhesive to the label paper and stick it on the paper mold blank, the label pressing mechanism 65 is used to press the labels extending from both sides of the paper mold blank onto both sides of the paper mold blank, and the stacking mechanism 64 is used to stack the labeled paper mold blanks.

[0051] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A labeling machine, characterized in that, include: The conveying mechanism includes a conveying frame and a conveying component, a driving wheel and a driven wheel disposed on the conveying frame. The driving wheel is rotatably connected to the conveying frame via a first transmission shaft. The conveying component is respectively wound around the driving wheel and the driven wheel. The upper surface of the conveying component is used to convey the label paper in the downstream direction. The label feeding mechanism includes a storage mechanism and a transfer mechanism. The storage mechanism is used to store the labels, and the transfer mechanism is used to place the labels on the storage mechanism one by one at the upstream end of the conveyor. The label adsorption drum is located on the lower side of the downstream end of the label feeding mechanism. It includes a mounting frame and an adsorption drum body rotatably connected to the mounting frame via a first rotating shaft. The adsorption drum body has several adsorption stations along its outer periphery, and the bottom of each adsorption station has an adsorption hole. The glue applicator is located on the side of the label adsorption drum and is used to apply adhesive to the labels flowing through the adsorption station. The label pressing mechanism is located on the lower side of the label adsorption drum and is rotatably connected to the mounting frame via a second rotating shaft. Its outer periphery is provided with a pressing part with an arc-shaped surface, which is used to press the flowing paper mold blank from the bottom to the label paper located on the upper side of the adsorption station. The drive device includes a drive motor, a gear transmission structure, and a belt transmission mechanism. The gear transmission structure includes a first drive wheel located at the front end of the first rotating shaft and a first follower wheel located at the rear end, a second follower wheel located at the rear end of the second rotating shaft and meshing with the first follower wheel, and a third follower wheel located at the rear end of the first transmission shaft and meshing with the first follower wheel. The transfer mechanism is equipped with a second transmission shaft that is connected to it. The second transmission shaft and the first transmission shaft are connected by a belt transmission mechanism. The drive motor is used to drive the first drive wheel to rotate relative to each other.

2. The labeling machine according to claim 1, characterized in that, The conveying component, driving wheel, and driven wheel are provided in two sets. The driven wheel is rotatably connected to the conveying frame through a second transmission shaft. The upper surface of the conveying frame is provided with three conveying platforms arranged at intervals along the length direction. The conveying components are correspondingly arranged between adjacent conveying platforms. Each of the two conveying components is a transmission chain. The upper surface of the transmission chain is at the same height as the upper surface of the conveying platform.

3. The labeling machine according to claim 1, characterized in that, The storage mechanism includes a material storage rack and a material stacking channel on the material storage rack for stacking labels. The material stacking channel has an inlet and an outlet on both sides. The outlet is surrounded by a limiting baffle to prevent the labels from falling. The transfer mechanism is located on the outlet side of the material stacking channel and is used to connect the outlet and the upstream end of the conveyor. The transfer mechanism includes a suction cup assembly for adsorbing the labels from the outlet and a transfer transmission mechanism. The transfer transmission mechanism includes a drive disk, a drive rod, and a flipping guide structure that are connected to the second drive shaft. The suction cup assembly is rotatably connected to the flipping guide structure at both ends. The flipping guide structure is set on the material storage rack and is connected to the suction cup assembly. The drive disk is rotatably connected to the storage rack, and its outer side is connected to the flipping guide structure through the drive rod, so that when the drive disk rotates in the same direction, the suction cup assembly can perform periodic back-and-forth flipping work between the outlet and the upstream end of the conveyor. The flipping guide structure includes a synchronizing rod, two sets of linkage frames, and a flipping drive arm. One of the linkage frames includes a first swing arm and a second swing arm with their ends connected at a certain angle. The other linkage frame includes a third swing arm. The suction cup assembly is rotatably connected to the outer ends of the second and third swing arms, respectively. The rotation center of the linkage frame is rotatably connected to the material storage rack. The rotation centers of the two linkage frames are synchronously linked by the synchronizing rod to achieve synchronous rotation of the two linkage frames. The end of the drive rod is rotatably connected to the outer end of the first swing arm. One end of the flipping drive arm is rotatably connected to the material storage rack, and the other end of the flipping drive arm is fixedly connected to the suction cup assembly. When the linkage frame drives the suction cup assembly to swing relative to each other, the flipping drive arm links the suction cup assembly to rotate relative to each other, so that the suction cup assembly picks up the label paper at the discharge port above the conveying mechanism and then rotates to the lower side to release the label paper onto the conveying mechanism.

4. The labeling machine according to claim 3, characterized in that, The belt drive mechanism includes a first pulley located at the front end of the first drive shaft, a second pulley located at the front end of the second drive shaft, and a drive belt wound around the second pulley and the second pulley.

5. The labeling machine according to claim 4, characterized in that, The rear end of the second drive shaft is connected to the drive disc via a commutator.

6. The labeling machine according to claim 2, characterized in that, The upper and lower ends of the conveyor platform extend outward from the outside of the conveyor and extend to the top of the adsorption drum to form a guide slope. The mounting bracket is rotatably connected to the upper side of the guide slope with a rolling roller.

7. The labeling machine according to claim 1, characterized in that, The first follower wheel, the second follower wheel, and the third follower wheel are all gears, the first drive wheel is a sprocket, and the first drive wheel is connected to the drive sprocket at the output end of the drive motor via a drive chain.

8. The labeling machine according to claim 1, characterized in that, The surface of the adsorption station is arc-shaped. There are four adsorption stations evenly distributed around the outer periphery of the label adsorption drum. The adsorption stations of the adsorption drum rotate circumferentially along the direction of the conveying mechanism, the glue brush and the label adsorption drum. The suction cup assembly includes a rotating rod and several suction cup components arranged along the length of the rotating rod.

9. The labeling machine according to claim 8, characterized in that, The pressing section is provided with multiple parts along the circumference, and the pressing section is designed so that its linear velocity during rotation is the same as that of the adsorption station during rotation.

10. Labeling equipment, characterized in that, It includes a conveying platform and a feeding mechanism arranged along the conveying direction of the conveying platform, a labeling machine, a label pressing mechanism and a stacking mechanism as described in any one of claims 1 to 9; The feeding mechanism is used to place the stacked unlabeled paper mold blanks one by one on the conveying platform. The labeling machine is used to apply glue to the label paper and stick it on the paper mold blank. The pressing mechanism is used to press the labels extending from both sides of the paper mold blank onto both sides of the paper mold blank. The stacking mechanism is used to stack the labeled paper mold blanks.

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