Label pressing and attaching mechanism with self-adaptive pressure adjustment and labeling equipment

Abstract

The utility model belongs to the field of labeling machines, in particular relates to a label pressing and laminating mechanism with self-adaptive pressure adjustment and labeling equipment, and aims to solve the problems that an existing label pressing mechanism lacks self-adaptive capacity and cannot be correspondingly adjusted according to the concave-convex change of the surface of a product during labeling, so that a gap is formed between a label and the surface of the product, and the labeling quality is influenced. In order to solve the problems in the prior art that the labeling machine is easy to generate bubbles, according to the scheme, the labeling machine comprises two supporting frames installed on the labeling machine, third guide rods are fixedly arranged in the supporting frames, the outer walls of the third guide rods are slidably sleeved with sliding blocks located in the supporting frames, and a pressing roller is rotationally arranged between the two sliding blocks through bearings; the compression roller is composed of a connecting shaft, a fixing ring, a compression ring, a rotating seat, a sleeve rod, a sliding rod, a second spring and the like, the outer wall of the compression roller can be adaptively attached to the concave-convex surface of an object through sliding connection of the sleeve rod and the sliding rod and arrangement of the second spring, and the compression roller can be effectively attached to objects with different shapes and concave-convex changes on the surface.

Description

Technical Field

[0001] This utility model relates to the field of labeling machine technology, and in particular to an adaptive pressure-adjustable labeling bonding mechanism and labeling equipment. Background Technology

[0002] In modern industrial production, labeling is an indispensable part of many product processing steps, widely used in industries such as food, pharmaceuticals, daily chemicals, and electronics. Labeling machines, as automated equipment, accurately affix labels to product surfaces to improve product identification, aesthetics, and enable product information traceability.

[0003] However, existing labeling machines still have some problems that need to be solved in practical applications.

[0004] In the labeling process, traditional labeling machines can usually handle the labeling task well for products with regular and flat surfaces. However, with the diversification of market demands and the increasing complexity of product shapes, many products and packaging with uneven surfaces have emerged, such as those with irregular shapes. Figure 6 The shape shown is an example. For this type of product, the labeling mechanism of traditional labeling machines often struggles to achieve a tight fit between the label and the product surface. Because the labeling mechanism lacks self-adaptability, it cannot adjust to the unevenness of the product surface during labeling, resulting in gaps between the label and the product surface, easily creating air bubbles. This severely affects the labeling quality, not only reducing the product's appearance but also potentially causing the label to detach during subsequent transportation, storage, and use due to poor adhesion, leading to inconvenience for product sales and use.

[0005] Meanwhile, different products have different materials and thicknesses, resulting in varying requirements for labeling pressure. Traditional labeling machines typically use a fixed pressure application method, which cannot be flexibly adjusted according to the characteristics of different products. When the labeling pressure is too high, it may damage the product surface, especially for products with fragile surfaces such as soft-packaged foods and thin-walled plastic products. Excessive pressure can damage the product's appearance and even affect its performance. Conversely, when the labeling pressure is too low, the label cannot adhere firmly to the product surface, also leading to labeling quality problems. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies where the labeling mechanism lacks self-adaptive capabilities and cannot adjust accordingly to the unevenness of the product surface during labeling, resulting in gaps between the label and the product surface, which easily leads to air bubbles and seriously affects the labeling quality. Therefore, this invention proposes an adaptive pressure-adjustable labeling and bonding mechanism and labeling equipment.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An adaptive pressure-adjustable label bonding mechanism is used in labeling equipment to press a label onto the surface of an object. It includes two support frames mounted on the labeling machine. A third guide rod is fixedly installed inside the support frame. A sliding block located inside the support frame is slidably sleeved on the outer wall of the third guide rod. A pressure roller is rotatably installed between the two sliding blocks through a bearing. The outer wall of the pressure roller can adaptively fit with the concave and convex surfaces of the object.

[0009] The outer wall of the third guide rod is fitted with a first spring. The two ends of the first spring are fixedly connected to one side of the inner wall of the support frame and one side of the sliding block, respectively. The elastic force of the first spring is used to apply pressure to the pressure roller.

[0010] In one possible design, the pressure roller includes a connecting shaft, the outer wall of which is fixedly fitted with multiple fixed rings by welding, the outer wall of which is fitted with a pressure ring, and a rotating seat welded to the adjacent side of the fixed ring and the pressure ring. A sleeve rod is rotatably mounted in the rotating seat located on the fixed ring by means of a pin and a bearing. A sliding rod is slidably mounted in the sleeve rod. A second spring is mounted in the sleeve rod, the two ends of which are fixedly connected to the bottom wall of the sleeve rod and the bottom of the sliding rod, respectively. The top end of the sliding rod is rotatably mounted in the rotating seat on the inner wall of the pressure ring by means of a pin and a bearing.

[0011] A labeling device includes the aforementioned adaptive pressure-adjustable labeling and bonding mechanism, and also includes a worktable. The top of the worktable is adjustablely provided with an adjustment frame, and one side of the adjustment frame is adjustablely provided with a labeling mechanism. One side of the labeling mechanism is fixedly provided with a mounting base by bolts, and both support frames are fixedly connected to the mounting base by welding.

[0012] The workbench is provided with a cutting assembly for cutting labels on one side. The cutting assembly includes a cylinder that is fixed to the labeling mechanism by bolts. A cutter is fixed to the output end of the cylinder by bolts. A pad is provided on one side of the labeling mechanism below the label tape. The label is cut using the cutter and the pad.

[0013] The top of the workbench is bolted to a conveyor located below the labeling mechanism.

[0014] In one possible design, two fixed seats are fixedly provided on the top of the workbench, and two first guide rods are welded between the two fixed seats. The adjustment frame is slidably mounted on the two first guide rods by means of a slider. A first screw is rotatably provided between the two fixed seats through a bearing, and the fixed seats are threadedly fitted onto the first screw through a nut block.

[0015] In one possible design, two second guide rods are fixedly welded to one side of the adjustment frame, and a movable seat is slidably mounted on the two second guide rods via a slider. The labeling mechanism is fixed to one side of the movable seat by bolts, and a second screw is rotatably mounted on the top of the adjustment frame via a bearing. The movable seat is threadedly fitted onto the second screw using a nut block.

[0016] In one possible design, a controller is bolted to the top of the workbench, and the controller is connected to the labeling mechanism and the conveyor via wires.

[0017] In this invention, the adaptive pressure-adjustable label-applying mechanism and labeling equipment comprises a pressure roller with a connecting shaft, a fixed ring, a pressure ring, a rotating seat, a sleeve rod, a sliding rod, and a second spring. The sliding connection between the sleeve rod and the sliding rod, along with the second spring, allows the outer wall of the pressure roller to adaptively fit the uneven surface of the object. This effectively applies to objects of different shapes and with varying surface textures, ensuring that the label adheres fully and tightly to the object's surface. This avoids problems such as poor adhesion and air bubbles, thereby improving labeling quality.

[0018] In this utility model, the adaptive pressure-adjustable labeling mechanism and labeling equipment apply pressure to the pressure roller through the elastic force of the first spring. Utilizing the elastic characteristics of the spring, the pressure can be automatically adjusted according to the actual situation of the object's surface, adapting to the labeling needs of objects of different materials and thicknesses, and enhancing the versatility and adaptability of the equipment.

[0019] In this invention, the labeling equipment features adaptive bonding and flexible pressure adjustment. Combined with the adjustable design of each component, the labeling equipment can adapt to the labeling needs of objects of different shapes, sizes, and materials, thus improving the equipment's versatility. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a labeling device proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the adjustment frame and labeling mechanism of a labeling device proposed in this utility model;

[0022] Figure 3 for Figure 1 Enlarged structural diagram of section A in the middle;

[0023] Figure 4 This is a three-dimensional structural diagram of an adaptive pressure-adjustable pressure-adhesive bonding mechanism proposed in this utility model;

[0024] Figure 5This is a schematic diagram of the pressure roller structure of an adaptive pressure-adjustable label bonding mechanism proposed in this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the object to be labeled.

[0026] In the diagram: 1. Workbench; 2. Conveyor; 3. Controller; 4. Adjusting frame; 5. Labeling mechanism; 6. Fixed seat; 7. First guide rod; 8. First screw; 9. Moving seat; 10. Second guide rod; 11. Second screw; 13. Cylinder; 14. Cutter; 15. Pad; 16. Mounting seat; 17. Support frame; 18. Pressure roller; 19. Third guide rod; 20. Sliding block; 21. First spring; 22. Connecting shaft; 23. Fixed ring; 24. Rotating seat; 25. Sleeve rod; 26. Second spring; 27. Sliding rod; 28. Pressure ring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Example 1

[0029] If the shape is Figure 6 Given the product's shape and appearance, traditional labeling machines often struggle to achieve a tight fit between the label and the product surface using their labeling mechanisms. Due to the lack of self-adaptability, the labeling mechanism cannot adjust to the unevenness of the product surface during labeling, resulting in gaps between the label and the product surface, easily creating air bubbles. This severely affects the labeling quality, not only reducing the product's appearance but also potentially causing labels to detach during subsequent transportation, storage, and use due to poor adhesion, leading to inconvenience for sales and use. To address this problem, this solution designs a new labeling and bonding mechanism.

[0030] Reference Figures 1-5 A label-pressing and bonding mechanism is used for installation on a labeling machine to press and bond a label to the surface of an object. It includes two 6061-T6 aluminum alloy support frames 17, which are fixedly installed at corresponding positions on the labeling machine using M8 stainless steel bolts or other suitable methods.

[0031] A chrome-plated hard steel third guide rod 19 (surface hardness HRC60) with a diameter of 9-15mm is fixedly installed inside the support frame 17. Both ends of the third guide rod 19 can be firmly fixed to the support frame 17 by welding or threaded connection. A sliding block 20 is slidably fitted onto the outer wall of the third guide rod 19. The sliding block 20 has through holes that match the third guide rod 19, ensuring smooth sliding on the third guide rod 19. A 304 stainless steel pressure roller 18 is rotatably mounted between the two sliding blocks 20 via a bearing, allowing the pressure roller 18 to rotate freely between the two sliding blocks 20, and the outer wall of the pressure roller 18 can adaptively conform to the uneven surface of the object.

[0032] To improve the pressing effect, a first spring 21 (stiffness 50 N / mm) is fitted onto the outer wall of the third guide rod 19. The two ends of the first spring 21 are fixedly connected to one side of the inner wall of the support frame 17 and one side of the sliding block 20, respectively, and can be fixed by welding or hooking. The elastic force of the first spring 21 applies pressure to the pressure roller 18, and the axis of the installed pressure roller 18 is flush with the upper surface of the object. When the object surface contacts the pressure roller 18, it can push the pressure roller 18 to move within the support frame 17. When the pressure roller 18 moves to the object surface, the first spring 21 can push the sliding block 20 to slide on the third guide rod 19, thereby adjusting the pressure between the pressure roller 18 and the object surface, ensuring that the label can adhere tightly to the object surface.

[0033] A labeling device includes the aforementioned adaptive pressure-adjustable label-applying mechanism and a worktable 1. An adjustable frame 4 is adjustablely mounted on the top of the worktable 1, and a labeling mechanism 5 is adjustablely mounted on one side of the adjustable frame 4. The labeling mechanism 5 is the same as that used in patent document CN119246414B. A mounting base 16 is bolted to one side of the labeling mechanism 5, and two support frames 17 are welded to the mounting base 16, enabling the label-applying mechanism to work collaboratively with the labeling mechanism 5.

[0034] A cutting assembly for label cutting is provided on one side of the workbench 1. The cutting assembly includes a cylinder 13 bolted to one side of the labeling mechanism 5. A cutter 14 (SKD11 tool steel (HRC58 hardness)) is bolted to the output end of the cylinder 13, and the cutter 14 corresponds to the mounting base 16. A pad 15 is provided on one side of the labeling mechanism 5, located below the label tape retraction bend. After the label is applied, the cylinder 13 drives the cutter 14 to move downward, cooperating with the pad 15 to cut off the excess label.

[0035] A conveyor 2 located below the labeling mechanism 5 is fixed to the top of the workbench 1 by bolts and is used to transport objects to be labeled.

[0036] To enable the labeling mechanism 5 to be adjusted forward and backward, two fixed seats 6 are fixedly installed on the top of the workbench 1, and two first guide rods 7 are welded between the two fixed seats 6. The adjusting frame 4 is slidably mounted on the two first guide rods 7 using a slider, ensuring that the adjusting frame 4 can move along the direction of the first guide rods 7. A first screw 8 is rotatably mounted between the two fixed seats 6 via a bearing, and the adjusting frame 4 is threaded onto the first screw 8 via a nut block. The first screw 8 can be driven by a motor or manually. When the first screw 8 is rotated, the adjusting frame 4 can be moved along the direction of the first guide rods 7 by the nut block, thus achieving forward and backward adjustment.

[0037] To enable vertical adjustment of the labeling mechanism 5 to accommodate objects of different heights, two second guide rods 10 are welded and fixed to one side of the adjusting frame 4. A movable seat 9 is slidably mounted on each of the two second guide rods 10 via sliders. The labeling mechanism 5 is bolted to one side of the movable seat 9. A second screw 11 is rotatably mounted on the top of the adjusting frame 4 via a bearing. The movable seat 9 is threaded onto the second screw 11 via a nut block. The second screw 11 can be driven by a motor or manually. When the second screw 11 is rotated, the nut block moves the movable seat 9 along the direction of the second guide rods 10, thus achieving vertical adjustment of the labeling mechanism 5.

[0038] The top of the workbench 1 is fixed with a controller 3 by bolts. The controller 3 is connected to the labeling mechanism 5 and the conveyor 2 by wires to realize the automated control of the entire labeling equipment.

[0039] This application can be used in the field of labeling machines, or in other fields applicable to this application.

[0040] Example 2

[0041] refer to Figure 4 and Figure 5An improvement upon Embodiment 1: An adaptive pressure-adjustable label-applying mechanism, applied to labeling machines, includes a pressure roller 18 comprising a connecting shaft 22, the two ends of which are connected to a sliding block 20 via bearings. Multiple fixing rings 23 are welded and fixedly fitted onto the outer wall of the connecting shaft 22, evenly distributed on the shaft. Pressure rings 28 are fitted onto the outer wall of each fixing ring 23, rotating with the fixing rings 23. Rotating seats 24 are welded to the sides of the fixing rings 23 and pressure rings 28 that are close to each other. A sleeve rod 25 is rotatably mounted within the rotating seat 24 on the fixing ring 23 via a pin and bearings, allowing the sleeve rod 25 to rotate freely within the rotating seat 24 on the fixing ring 23. A sliding rod 27 is slidably mounted within the sleeve rod 25, and a second spring 26 is provided within the sleeve rod 25. The two ends of the second spring 26 are fixedly connected to the bottom wall of the sleeve rod 25 and the bottom of the sliding rod 27, respectively, and can be fixed by welding or hooking. The top end of the sliding rod 27 is rotatably mounted in the rotating seat 24 on the inner wall of the pressure ring 28 via a pin and bearing. When the pressure roller 18 contacts the surface of an object, due to the unevenness of the object's surface, the pressure ring 28 will move relative to the fixed ring 23, forming an eccentricity. At the same time, the sliding rod 27 will slide within the sleeve 25, and the second spring 26 will undergo elastic deformation, thereby enabling the pressure roller 18 to better adapt to the shape of the object's surface, ensuring the quality of label adhesion. Furthermore, the pressure roller 18 is made of stainless steel, with a smooth surface that effectively prevents scratching the label.

[0042] When in use, the device is powered on, and the object to be labeled is placed on the conveyor 2 for conveying. The position of the labeling mechanism 5 is adjusted according to the labeling position of the object. By rotating the first screw 8, the adjusting frame 4 can be moved on the two first guide rods 7 to adjust the front and rear position of the labeling mechanism 5. Then, the second screw 11 is rotated to adjust the moving seat 9 to move up and down on the adjusting frame 4, thereby adjusting the height of the labeling mechanism 5 until the axis of the pressure roller 18 is parallel to the upper surface of the object.

[0043] Then, start the conveyor 2 to transport the object to the bottom of the labeling mechanism 5, and start the labeling mechanism 5 to apply the label. At the same time, continue to start the conveyor 2 to transport the object while labeling. When the object contacts the pressure roller 18, it can squeeze part of the pressure ring 28 to move upward. The upward movement of the pressure ring 28 can drive the sleeve rod 25 and the sliding rod 27 to rotate in the rotating seat 24, and drive the sliding rod 27 to move in the sleeve rod 25, so that the pressure ring 28 can fit tightly on the label and completely press the label onto the object.

[0044] When the label needs to be cut, the cylinder 13 is activated to extend, and during the extension process, it can drive the cutter 14 to move, which, together with the pad 15, can cut the label.

[0045] However, as is well known to those skilled in the art, the working principles and wiring methods of the conveyor 2, controller 3, labeling mechanism 5 and cylinder 13 are commonplace and are all conventional means or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adaptive pressure-adjustable label-adhesive mechanism, used in labeling equipment for pressing a label onto the surface of an object, characterized in that, The labeling machine includes two support frames (17) installed on the labeling machine. A third guide rod (19) is fixedly installed inside the support frame (17). A sliding block (20) located inside the support frame (17) is slidably sleeved on the outer wall of the third guide rod (19). A pressure roller (18) is rotatably installed between the two sliding blocks (20) through a bearing. The outer wall of the pressure roller (18) can adaptively fit the concave and convex surfaces of the object. The outer wall of the third guide rod (19) is fitted with a first spring (21). The two ends of the first spring (21) are fixedly connected to the inner wall of one side of the support frame (17) and the side of the sliding block (20), respectively. The elastic force of the first spring (21) is used to apply pressure to the pressure roller (18).

2. The adaptive pressure adjustment pressure label bonding mechanism according to claim 1, characterized in that, The pressure roller (18) includes a connecting shaft (22). The outer wall of the connecting shaft (22) is fixedly fitted with multiple fixing rings (23) by welding. The outer wall of the fixing rings (23) is fitted with a pressure ring (28). The fixing rings (23) and the pressure rings (28) are welded to each other on the side closest to each other. The rotating seat (24) located on the fixing rings (23) is rotatably fitted with a sleeve rod (25) by a pin and a bearing. The sleeve rod (25) is slidably fitted with a sliding rod (27). The sleeve rod (25) is fitted with a second spring (26). The two ends of the second spring (26) are fixedly connected to the bottom wall of the sleeve rod (25) and the bottom of the sliding rod (27) respectively. The top end of the sliding rod (27) is rotatably fitted in the rotating seat (24) on the inner wall of the pressure ring (28) by a pin and a bearing.

3. A labeling device, comprising an adaptive pressure-adjustable label-applying mechanism as described in claim 2, characterized in that, It also includes a workbench (1), the top of which is adjustablely provided with an adjustment frame (4), and one side of the adjustment frame (4) is adjustablely provided with a labeling mechanism (5). One side of the labeling mechanism (5) is fixedly provided with a mounting base (16) by bolts, and the two support frames (17) are fixedly connected to the mounting base (16) by welding. The workbench (1) has a cutting assembly for cutting labels on one side. The cutting assembly includes a cylinder (13) fixed to one side of the labeling mechanism (5) by bolts. The output end of the cylinder (13) is fixed with a cutter (14) by bolts. The labeling mechanism (5) has a pad (15) located below the label tape on one side. The cutter (14) and the pad (15) are used to cut the label. The top of the workbench (1) is bolted to a conveyor (2) located below the labeling mechanism (5).

4. A labeling device according to claim 3, characterized in that, The top of the workbench (1) is fixedly provided with two fixed seats (6), and two first guide rods (7) are welded between the two fixed seats (6). The adjustment frame (4) is slidably mounted on the two first guide rods (7) by means of a slider. A first screw (8) is rotatably provided between the two fixed seats (6) through a bearing. The fixed seat (6) is threadedly mounted on the first screw (8) through a nut block.

5. A labeling device according to claim 3, characterized in that, Two second guide rods (10) are fixedly welded to one side of the adjustment frame (4). A movable seat (9) is slidably mounted on the two second guide rods (10) by a slider. The labeling mechanism (5) is fixed to one side of the movable seat (9) by bolts. A second screw (11) is rotatably mounted on the top of the adjustment frame (4) by a bearing. The movable seat (9) is threaded onto the second screw (11) by a nut block.

6. A labeling device according to any one of claims 3-5, characterized in that, The top of the workbench (1) is fixed with a controller (3) by bolts. The controller (3) is connected to the labeling mechanism (5) and the conveyor (2) by wires.

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