A label three-side laminating machine

Abstract

The application relates to the technical field of packaging machinery, in particular to a label three-side film covering machine which comprises a rack, a film covering assembly and a sensing assembly, the film covering assembly is arranged on the rack, and the sensing assembly is fixedly arranged on the two sides of the rack; the film covering assembly comprises a lifting drive which is fixedly connected with the rack, an installation plate is connected with the output end of the lifting drive, a guide rod is arranged on the installation plate, the guide rod is arranged through the installation plate, a label covering block is arranged at the end of the guide rod, and side film covering mechanisms are arranged at the two sides of the guide rod; the side film covering mechanism comprises a mounting seat and a swing arm, the mounting seat is movably connected with the installation plate, one end of the swing arm is hinged with the mounting seat, and a label covering wheel is arranged at the other end of the swing arm; the cooperation of the lifting drive, the guide rod and the label covering block realizes the upper surface film covering, the side film covering mechanisms realize the synchronous film covering of the two sides at the same time, and the problems that the traditional equipment cannot realize the three-side synchronous film covering, the positioning is not accurate, the film covering is not firm and the like are solved.

Description

Technical Field

[0001] This application relates to the field of packaging machinery technology, specifically to a label three-sided laminating machine. Background Technology

[0002] Currently, labeling machines on the market have significant limitations in labeling the top surface of products, mainly focusing on compatibility issues with large and small labels. Existing equipment performs poorly when handling special labeling needs, especially when large labels need to cover multiple surfaces of a product simultaneously; traditional equipment often cannot meet these requirements. Conventional labeling machines typically only perform single-sided labeling, and even when they can perform multi-sided labeling, problems such as inaccurate positioning and weak lamination persist. In applications requiring labels to cover the top surface and two sides of a product simultaneously, existing equipment lacks an effective three-sided synchronous lamination mechanism, causing label edges to easily lift, affecting product appearance and lifespan. Utility Model Content

[0003] This application provides a label three-sided laminating machine, the technical solution of which is as follows: The device includes a frame, a coating assembly, and a sensing assembly. The coating assembly is mounted on the frame, and the sensing assembly is fixedly mounted on both sides of the frame. The coating assembly includes a lifting drive, which is fixedly connected to the frame. The output end of the lifting drive is connected to a mounting plate, and a guide rod is mounted on the mounting plate. The guide rod passes through the mounting plate, and a labeling block is mounted at the end of the guide rod. Side coating mechanisms are mounted on both sides of the guide rod. The side coating mechanism includes a mounting base and a swing arm. The mounting base is movably connected to the mounting plate, one end of the swing arm is hinged to the mounting base, and the other end of the swing arm is equipped with a labeling wheel.

[0004] Furthermore, this application also proposes that two guide rods are provided in the vertical direction of the mounting plate, and the two guide rods are respectively connected to the two ends of the label block.

[0005] Furthermore, this application also proposes that a slot is provided in the label block along the length direction of the label block, a washer is fixed to the end of the guide rod by screws, the end of the guide rod abuts against the upper surface of the label block, the washer is located in the slot, and the movement of the label block is realized by the washer and the slot.

[0006] Furthermore, this application also proposes that a rubber pressure block is provided at the bottom of the labeling block, and the rubber pressure block is connected to the labeling block by means of a snap fastener.

[0007] Furthermore, this application also proposes that a limiting sleeve is fitted on the portion of the guide rod extending out of the mounting plate, a reset member is fitted on the middle portion of the guide rod, and one end of the reset member abuts against the lower surface of the mounting plate.

[0008] Furthermore, this application also proposes that the mounting plate is provided with a movable groove, the mounting base corresponds to the position of the movable groove, a screw is provided in the movable groove, the mounting base is connected to the mounting plate by the screw, and the mounting base moves along the setting direction of the movable groove.

[0009] Furthermore, this application also proposes that each of the mounting bases is provided with two swing arms, one end of each of the two swing arms is hinged to the mounting base, and a support fixing rod is provided between the two swing arms, with both ends of the support fixing rod being fixedly connected to the swing arms.

[0010] Furthermore, this application also proposes that a force adjustment rod is provided between the two swing arms, the force adjustment rod is movably connected to the swing arms, the swing arms are provided with countersunk grooves, both ends of the force adjustment rod are located in the countersunk grooves, the force adjustment rod is fixed to the outside of the swing arms by screws, a force adjustment component is provided between the mounting base and the force adjustment rod, one end of the force adjustment component is connected to the mounting base, and the other end of the force adjustment component is connected to the force adjustment rod.

[0011] Furthermore, this application also proposes that the swing arm is arranged in a "C" shape, with the opening of the swing arm facing the guide rod.

[0012] Furthermore, this application also proposes that the labeling wheel is a sponge wheel or has a sponge layer wrapped around its exterior.

[0013] As can be seen from the above, the label three-sided laminating machine provided in this application achieves upper surface lamination through the cooperation of lifting drive, guide rod and labeling block, and simultaneously achieves two-sided simultaneous lamination through adjustable side lamination mechanism. It solves the problems of traditional equipment being unable to achieve three-sided simultaneous lamination, inaccurate positioning, and weak lamination. It has the advantages of achieving accurate three-sided labeling, improving label adhesion firmness, and adapting to the needs of different material labels. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the laminating machine in this utility model; Figure 2 This is a schematic diagram of the structure of the product in this utility model; Figure 3 This is one of the overall structural schematic diagrams of the film-coating component in this utility model; Figure 4 for Figure 3 A magnified view of part A in the diagram; Figure 5 This is the second schematic diagram of the overall structure of the film-coating component in this utility model; Figure 6This is a schematic diagram showing the connection relationship between the guide rod and the label block in this utility model; Figure 7 This is a schematic diagram of the overall structure of the side coating mechanism in this utility model.

[0015] In the attached diagram: 1. Frame; 2. Coating assembly; 3. Sensing assembly; 4. Conveyor belt; 5. Product; 6. Label; 21. Lifting drive; 22. Mounting plate; 23. Guide rod; 24. Labeling block; 25. Side film covering mechanism; 26. Gasket; 221. Movable groove; 222. Limiting groove; 231. Limit sleeve; 232. Reset component; 241. Card slot; 242. Rubber pressure block; 251. Mounting base; 252. Swing arm; 253. Labeling wheel; 254. Support rod; 255. Force adjustment rod; 256. Countersunk groove; 257. Force adjustment component. Detailed Implementation

[0016] To facilitate understanding of this utility model by those skilled in the art, the specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0017] like Figures 1-7 As shown, this application proposes a three-sided label laminating machine, including a frame 1, a laminating assembly 2, and a sensing assembly 3. The laminating assembly 2 is mounted on the frame 1, and the sensing assembly 3 is fixedly mounted on both sides of the frame 1. The laminating assembly 2 includes a lifting drive 21, which is fixedly connected to the frame 1. The output end of the lifting drive 21 is connected to a mounting plate 22. A guide rod 23 is provided on the mounting plate 22, and the guide rod 23 passes through the mounting plate 22. A label-applying block 24 is provided at the end of the guide rod 23, and side laminating mechanisms 25 are provided on both sides of the guide rod 23. The side laminating mechanism 25 includes a mounting base 251 and a swing arm 252. The mounting base 251 is movably connected to the mounting plate 22, one end of the swing arm 252 is hinged to the mounting base 251, and the other end of the swing arm 252 is provided with a label-applying wheel 253.

[0018] This technical solution uses a lifting drive 21 to move the labeling block 24 to complete the labeling on the upper surface, while the adjustable side film-coating mechanism 25 simultaneously covers the label 6 on three sides. The cooperation between the guide rod 23 and the mounting plate 22 ensures the vertical accuracy of the labeling process, and the hinged design of the swing arm 252 allows the labeling wheel 253 to adapt to the angle changes of different product sides. Compared with traditional single-sided labeling equipment, this structure achieves multi-sided synchronous film coating of the label 6 through mechanical linkage, solving the technical problem of large labels 6 needing to cover multiple surfaces of product 5. The setting of the sensing component 3 can monitor the position of the label 6 in real time, ensuring the positioning accuracy of the three-sided film coating. At the same time, the linkage effect is achieved through the sensing component 3. After the conveyor belt 4 transports the product 5 to the sensing position of the sensing component 3, the conveyor belt 4 stops transporting, and at this time the film-coating component 2 performs the film coating work on the product 5.

[0019] Furthermore, this application also proposes that two guide rods 23 are provided in the vertical direction of the mounting plate 22, and the two guide rods 23 are respectively connected to the two ends of the label block 24.

[0020] This technical solution effectively solves the problem of label block 24 easily deflecting when supported by a single guide rod 23, through a symmetrical support structure with two guide rods 23. The two guide rods 23 share the weight and motion load of the label block 24, ensuring its horizontal stability during lifting and lowering. Compared to the single guide rod 23 structure, the double guide rod 23 layout significantly improves the rigidity and motion accuracy of the mechanism, avoiding jamming caused by unilateral force. Simultaneously, the double guide rod 23 structure ensures more even force distribution on the label block 24, extending the service life of related components.

[0021] Furthermore, this application also proposes that a slot 241 is provided in the label block 24 along the length direction of the label block 24, and a washer 26 is fixed to the end of the guide rod 23 by screws. The end of the guide rod 23 abuts against the upper surface of the label block 24, and the washer 26 is located in the slot 241. The movement of the label block 24 is realized by the washer 26 and the slot 241.

[0022] Specifically, the slot 241 can be configured as a T-slot or a dovetail slot, and the gasket 26 can be a metal gasket 26 or an engineering plastic gasket 26. In a preferred embodiment, the clearance between the gasket 26 and the slot 241 is controlled within the range of 0.1-0.3 mm. The contact surface between the end of the guide rod 23 and the upper surface of the label block 24 can be machined into a flat surface or a spherical surface, with spherical contact being beneficial in reducing frictional resistance.

[0023] Therefore, this technical solution achieves stable movement of the labeling block 24 on the guide rod 23 through the mating structure of the slot 241 and the gasket 26. The gasket 26 serves both as a limiting element and as a sliding component to reduce movement resistance. The direct contact between the end of the guide rod 23 and the labeling block 24 ensures the reliability of the force transmission path. Compared to traditional fixed connections, this structure guarantees the movement accuracy of the labeling block 24 while facilitating disassembly and maintenance. In practical applications, this structure effectively solves the jamming problem that occurs during the movement of the labeling block 24, improving the stability of the coating operation.

[0024] Meanwhile, when the surface area of ​​product 5 is greater than or less than 50% of the surface area of ​​label block 24, label block 24 can be replaced so that label block 24 can better press and adhere to label 6.

[0025] Furthermore, this application also proposes that a rubber pressure block 242 is provided at the bottom of the label block 24, and the rubber pressure block 242 is connected to the label block 24 by a snap-fit ​​mechanism.

[0026] The rubber pressure block 242 is made of an elastic material, specifically natural rubber, silicone rubber, or polyurethane rubber, which possesses appropriate elasticity and wear resistance. The snap-fit ​​connection methods include, but are not limited to, the following: a dovetail groove structure is provided at the bottom of the label block 24, and a corresponding dovetail tenon is provided at the top of the rubber pressure block 242; or a T-slot is provided at the bottom of the label block 24, and a matching T-shaped protrusion is provided at the top of the rubber pressure block 242; or an annular groove is provided at the bottom of the label block 24, and an annular flange is provided at the top of the rubber pressure block 242. As a preferred embodiment, the rubber pressure block 242 and the label block 24 employ a detachable plug-in snap-fit ​​structure, facilitating the replacement of rubber pressure blocks 242 of different hardness or shape to adapt to the label 6 lamination requirements of different materials.

[0027] This technical solution effectively solves the problem of indentations or damage to the label 6 surface caused by direct contact between the traditional metal labeling block 24 and the label 6 when an elastic rubber pressure block 242 is added to the bottom of the labeling block 24. The rubber pressure block 242 achieves quick assembly and disassembly through a snap-fit ​​connection, ensuring reliable connection and facilitating the replacement of pressure blocks with different characteristics according to actual working conditions. Specifically, when the labeling block 24 is pressed down, the rubber pressure block 242 can evenly distribute pressure, avoiding localized stress concentration. Simultaneously, its elastic deformation characteristics can automatically compensate for unevenness on the workpiece surface, ensuring a tight fit between the label 6 and the product 5 surface. Compared with existing technologies, this structure significantly improves the coating quality, and is particularly suitable for coating labels 6 with surfaces that are easily damaged or require high precision.

[0028] Furthermore, this application also proposes that a limiting sleeve 231 is fitted on the part of the guide rod 23 that extends out of the mounting plate 22, and a reset member 232 is fitted on the middle part of the guide rod 23, with one end of the reset member 232 abutting against the lower surface of the mounting plate 22.

[0029] The limiting sleeve 231 is used to limit the travel range of the guide rod 23 during the lifting process, preventing the guide rod 23 from extending excessively. The limiting sleeve 231 can be made of metal or plastic and is fixed to the guide rod 23 by threads or snaps. The reset element 232 is preferably a spring, the elastic coefficient of which can be adjusted according to the actual load. The reset element 232 is compressed when the guide rod 23 rises and releases its elastic force when the guide rod 23 falls, assisting the guide rod 23 in resetting. The limiting sleeve 231 and the reset element 232 work together to ensure that the label block 24 maintains a stable movement trajectory during the lifting process.

[0030] This technical solution effectively solves the problem of swaying or offset that may occur in the labeling block 24 during lifting and lowering by the synergistic action of the limiting sleeve 231 and the reset component 232. The limiting sleeve 231 precisely controls the lifting stroke to avoid mechanical interference; the reset component 232 provides buffering and reset force to reduce impact and vibration. Compared with the prior art, this structure is simple and reliable, achieving stable lifting and lowering without a complex control system, thus improving the coating accuracy and equipment lifespan. Specifically, when the lifting drive 21 pushes the mounting plate 22 down, the reset component 232 is compressed and stores energy; when the lifting drive 21 pushes the mounting plate 22 up, the reset component 232 slowly releases energy, helping the guide rod 23 return to its initial position, ensuring consistency in each coating action.

[0031] Furthermore, this application also proposes that the mounting plate 22 is provided with a movable groove 221, the mounting base 251 is positioned corresponding to the movable groove 221, a screw is provided in the movable groove 221, and the mounting base 251 is connected to the mounting plate 22 by the screw, while the mounting base 251 moves along the setting direction of the movable groove 221.

[0032] This technical solution achieves precise horizontal position adjustment of the mounting base 251 through the cooperation structure of the movable groove 221 and the screw. Specifically, when it is necessary to adjust the lateral position of the side laminating mechanism 25, simply loosen the screw to push the mounting base 251 to slide along the movable groove 221, and then tighten the screw again to complete the positioning. This design solves the problem that traditional fixed mounting structures cannot adapt to the laminating requirements of labels 6 of different widths, enabling the equipment to be quickly adjusted to adapt to three-sided laminating operations of products 5 of different specifications. Compared with existing technologies, this adjustment mechanism has the advantages of simple operation, reliable positioning, and low cost, achieving the adjustable function of key components through a simple mechanical structure.

[0033] Furthermore, this application also proposes that each mounting base 251 is provided with two swing arms 252, one end of each swing arm 252 is hinged to the mounting base 251, and a support fixing rod 254 is provided between the two swing arms 252, with both ends of the support fixing rod 254 fixedly connected to the swing arms 252.

[0034] Specifically, the support rod 254 is used to enhance the structural stability between the two swing arms 252, preventing deformation or displacement of the swing arms 252 during the lamination process. As a preferred embodiment, the support rod 254 can be made of metal, such as stainless steel or aluminum alloy, to ensure its strength and durability. Furthermore, the connection between the support rod 254 and the swing arms 252 can be welding, bolting, or snap-fit, with bolting facilitating disassembly and maintenance. Additionally, the length of the support rod 254 can be adjusted according to the spacing of the swing arms 252 to accommodate lamination requirements of labels 6 of different sizes.

[0035] Therefore, this technical solution, by setting up the support fixing rod 254, effectively improves the structural strength and stability of the swing arm 252, making the movement of the swing arm 252 more stable during the lamination process, thereby ensuring uniform pressure from the laminating wheel on the label 6. Compared with the prior art, this solution solves the problem of easy deformation or displacement of the swing arm 252 during the lamination process, improving the accuracy and consistency of lamination. Specifically, the introduction of the support fixing rod 254 enables the two swing arms 252 to work together, avoiding the degradation of lamination quality caused by uneven force on one side.

[0036] Furthermore, this application also proposes that a force adjustment rod 255 is provided between the two swing arms 252, the force adjustment rod 255 is movably connected to the swing arms 252, the swing arms 252 are provided with countersunk grooves 256, the two ends of the force adjustment rod 255 are located in the countersunk grooves 256, the force adjustment rod 255 is fixed to the outside of the swing arms 252 by screws, and a force adjustment component 257 is provided between the mounting base 251 and the force adjustment rod 255, one end of the force adjustment component 257 is connected to the mounting base 251, and the other end of the force adjustment component 257 is connected to the force adjustment rod 255.

[0037] When the mounting plate 22 pushes down the guide rod 23, the swing arm 252 opens along both sides of the product 5. At this time, the force adjustment component 257 is stretched. While the force adjustment component 257 is stretched, it will apply a certain pressure to the other end of the swing arm 252. Finally, the swing arm 252 applies pressure to both sides of the product 5, improving the adhesion of the label 6. At the same time, adjusting the up and down position of the force adjustment rod 255 can adjust the pressure of the swing arm 252 on the side of the product 5. For example, the closer the position of the force adjustment rod 255 is to the force adjustment component 257, the closer the force adjustment component 257 is to its initial state, and the smaller the tension generated, and the smaller the pressure during lamination. The farther the position of the force adjustment rod 255 is from the force adjustment component 257, the longer the force adjustment component 257 is stretched, the greater the tension generated, and the greater the pressure generated during lamination.

[0038] Furthermore, this application also proposes that the swing arm 252 is arranged in a "C" shape, with the opening of the swing arm 252 facing the guide rod 23.

[0039] Specifically, the C-shaped swing arm 252 structure, with its opening facing the guide rod 23, can better adapt to the space constraints during the labeling process. As a preferred embodiment, the C-shaped swing arm 252 can be formed by bending metal sheet, and its opening angle is controlled within the range of 90-120 degrees.

[0040] To address this issue, this technical solution utilizes a unique C-shaped structural design to effectively resolve the problem of interference between the traditional straight-arm structure and the product's shape during the lamination process. Specifically, when the swing arm 252 drives the labeling wheel 253 for side lamination, the C-shaped opening structure provides clearance for the middle section of the swing arm 252, preventing motion interference. Compared to existing technologies, this design simplifies the mechanism's complexity and improves the equipment's operational reliability.

[0041] Furthermore, this application also proposes that the label wheel 253 is a sponge wheel or has a sponge layer on the outside.

[0042] This technical solution addresses the issue of label 6 wrinkling caused by rigid labeling rollers 253 through elastic contact. When the labeling roller 253 contacts the label 6, the sponge layer undergoes compression deformation, which can both evenly transmit pressure and absorb mechanical vibration. Compared to traditional metal labeling rollers 253, the cushioning properties of the sponge material can adapt to label 6 materials of different thicknesses, making it particularly suitable for three-sided lamination scenarios requiring labeling across corners. Experiments show that using sponge labeling rollers 253 can improve the adhesion success rate of label 6 at corners by more than 15%, and will not cause label 6 to shift due to excessive pressure.

[0043] On the other hand, a limiting groove 222 is provided at the bottom of the installation, and the mounting base 251 is placed in the limiting groove 222. When the mounting base 251 moves, the limiting groove 222 guides the mounting base 251 to prevent the mounting base 251 from moving off-center and causing insufficient coating accuracy. At the same time, the limiting groove 222 can also limit the installation position of the mounting base 251 and position it.

[0044] In terms of usage environment, the laminating machine of this application has a wide range of installation range. The frame 1 allows the application to be assembled at any position on the machine conveyor line, and the overall structure does not occupy the installation space on both sides.

[0045] The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A label three-sided laminating machine, characterized in that, include: The frame (1), the coating assembly (2), and the sensing assembly (3) are provided on the frame (1), and the sensing assembly (3) is fixedly provided on both sides of the frame (1). The coating assembly (2) includes a lifting drive (21), which is fixedly connected to the frame (1). The output end of the lifting drive (21) is connected to a mounting plate (22). A guide rod (23) is provided on the mounting plate (22). The guide rod (23) passes through the mounting plate (22). A label block (24) is provided at the end of the guide rod (23). Side coating mechanisms (25) are provided on both sides of the guide rod (23). The side coating mechanism (25) includes a mounting base (251) and a swing arm (252). The mounting base (251) is movably connected to the mounting plate (22). One end of the swing arm (252) is hinged to the mounting base (251), and the other end of the swing arm (252) is provided with a label wheel (253).

2. The label three-sided laminating machine according to claim 1, characterized in that, Two guide rods (23) are provided in the vertical direction on the mounting plate (22), and the two guide rods (23) are respectively connected to the two ends of the label block (24).

3. The label three-side laminating machine according to claim 1, characterized by The label block (24) has a slot (241) along its length. The end of the guide rod (23) is fixed with a washer (26) by screws. The end of the guide rod (23) abuts against the upper surface of the label block (24). The washer (26) is located in the slot (241). The movement of the label block (24) is achieved by the washer (26) and the slot (241).

4. The label three-side laminating machine according to claim 1, characterized by The bottom of the label block (24) is provided with a rubber pressure block (242), which is connected to the label block (24) by a snap-fit.

5. The label three-side laminating machine according to claim 1, characterized by The portion of the guide rod (23) extending out of the mounting plate (22) is fitted with a limiting sleeve (231), and a reset member (232) is fitted in the middle of the guide rod (23). One end of the reset member (232) abuts against the lower surface of the mounting plate (22).

6. The label three-side laminating machine according to claim 1, characterized by The mounting plate (22) is provided with a movable groove (221), and the mounting base (251) is positioned corresponding to the movable groove (221). A screw is provided in the movable groove (221) to connect the mounting base (251) to the mounting plate (22) by means of the screw. At the same time, the mounting base (251) moves along the setting direction of the movable groove (221).

7. The label three-side laminating machine according to claim 1, characterized by Each of the mounting bases (251) is provided with two swing arms (252), one end of each swing arm (252) is hinged to the mounting base (251), and a support rod (254) is provided between the two swing arms (252), with both ends of the support rod (254) fixedly connected to the swing arms (252).

8. The label three-sided laminating machine according to claim 7, characterized in that, A force adjustment rod (255) is also provided between the two swing arms (252). The force adjustment rod (255) is movably connected to the swing arms (252). The swing arms (252) are provided with countersunk grooves (256). The two ends of the force adjustment rod (255) are located in the countersunk grooves (256). The force adjustment rod (255) is fixed to the outside of the swing arms (252) by screws. A force adjustment component (257) is provided between the mounting base (251) and the force adjustment rod (255). One end of the force adjustment component (257) is connected to the mounting base (251), and the other end of the force adjustment component (257) is connected to the force adjustment rod (255).

9. The label three-sided laminating machine according to claim 1, characterized in that, The swing arm (252) is arranged in a "C" shape, and the opening of the swing arm (252) faces the guide rod (23).

10. The label three-sided laminating machine according to claim 1, characterized in that, The label wheel (253) is a sponge wheel or has a sponge layer on the outside.

Images