A barrel surface labeling device

Abstract

The utility model relates to a label -sticking technical field, and disclose a kind of barrel surface label -sticking device, including workbench and vertical plate, the top surface of workbench is fixedly connected with vertical plate, the barrel lifting structure of being set on the vertical plate, barrel lifting structure is above the workbench, the barrel lifting structure includes clamping lifting assembly and barrel top fixed component, clamping lifting assembly is at the side of vertical plate, barrel top fixed component is at the other side of vertical plate, barrel label -sticking structure is set to the top surface of workbench, barrel label -sticking structure and the barrel top fixed component are on the same side of vertical plate, the barrel label -sticking structure includes label -sticking roller assembly and clamping roller assembly, label -sticking roller assembly and clamping roller assembly are respectively at the two sides of barrel top fixed component, adopt multi-dimension self-adapting fixed and collaborative drive design, different specifications barrel body can be accurately adapted.

Description

Technical Field

[0001] This utility model relates to the field of labeling technology, specifically to a labeling device for the surface of a barrel. Background Technology

[0002] In industries such as food, pharmaceuticals, daily chemicals, and chemicals, barrels are common material packaging carriers. The quality of the labels on their surfaces directly affects the product's labeling standardization, brand image, and traceability efficiency. With the popularization of automated production models, the barrel labeling process has gradually moved away from manual operation and towards mechanized and automated equipment operations.

[0003] Traditional labeling devices often employ rigid clamping or single-dimensional positioning designs for their barrel fixing structures. These designs lack adaptive adjustment capabilities for barrels of different shapes, such as round or irregular shapes. Some devices achieve positioning solely through side clamping, which can easily lead to radial displacement of the barrel during labeling. Other devices lack adjustable axial fixing mechanisms to accommodate differences in barrel height, causing vertical movement when the barrel rotates. This can result in label misalignment, wrinkles, or curling of the edges. To address these issues, we propose a barrel surface labeling device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a labeling device for barrel surfaces, which solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a labeling device for barrel surface, comprising a workbench and a vertical plate, wherein the vertical plate is fixedly connected to the top surface of the workbench;

[0006] A bucket lifting structure is installed on the vertical plate, and the bucket lifting structure is above the workbench;

[0007] The bucket clamping and lifting structure includes a clamping and lifting assembly and a bucket top fixing assembly. The clamping and lifting assembly is located on one side of the vertical plate, and the bucket top fixing assembly is located on the other side of the vertical plate.

[0008] The barrel labeling structure is located on the top surface of the workbench, and the barrel labeling structure and the barrel top fixing assembly are on the same side of the upright plate.

[0009] The labeling structure of the barrel includes a labeling roller assembly and a clamping roller assembly, which are respectively located on both sides of the barrel top fixing assembly.

[0010] Preferably, the clamping and lifting assembly includes a support plate, a second motor, a lead screw, and a second slider. The support plate is fixedly connected to one side of the upright plate near the top. The second motor is connected to the top surface of the worktable. The second motor is located on the side of the upright plate connected to the support plate. The bottom surface of the main body of the second motor is fixedly connected to the worktable. The output shaft of the second motor is connected to the lead screw through a coupling. The other end of the lead screw is rotatably connected to the bottom surface of the support plate. A threaded hole is opened through one side of the second slider. The second slider is sleeved on the lead screw and threadedly connected to the lead screw.

[0011] Preferably, a slotted hole is provided on the side of the upright plate opposite to the lead screw, the slotted hole corresponds to the lead screw, and a connecting rod is fixedly connected to the side of the slider two opposite to the slotted hole, the connecting rod passes through the slotted hole and is slidably connected to the slotted hole.

[0012] Preferably, the clamping and lifting assembly further includes an electric rotary table and a clamping box. The end of the connecting rod away from the second slider is fixedly connected to the side of the electric rotary table. The rotating surface of the electric rotary table is opposite to the top surface of the worktable. The clamping box is fixedly connected to the rotating surface of the electric rotary table.

[0013] Preferably, the barrel top fixing assembly includes a motor, a double-rotating lead screw, and a slider. The motor is connected to one side of the clamping box. The output shaft mounting surface of the motor is fixedly connected to the side of the clamping box. The output shaft of the motor passes through the clamping box and is rotatably connected to the clamping box. The output shaft of the motor is connected to the double-rotating lead screw through a coupling. The other end of the double-rotating lead screw is rotatably connected to the inner wall of the opposite side of the clamping box. One side of the slider has a threaded hole. Two sliders are respectively sleeved on the left and right rotating sections of the double-rotating lead screw and are threadedly connected to the double-rotating lead screw.

[0014] Preferably, the barrel top fixing assembly further includes a limiting rod and an arc-shaped rod. The clamping box has a through-hole two on the side facing away from the electric rotary table. The through-hole two corresponds to the double-screw screw. The side of the slider one opposite to the through-hole two is fixedly connected to the limiting rod. The limiting rod passes through the through-hole two and is slidably connected to the through-hole two. The end of the limiting rod facing away from the slider one is fixedly connected to the arc-shaped rod. The concave surfaces of the two arc-shaped rods face each other.

[0015] Preferably, the labeling roller assembly includes a rubber roller bracket and a labeling roller. The rubber roller bracket is a C-shaped bracket structure, and the labeling roller is rotatably connected inside the rubber roller bracket. One side of the rubber roller bracket is in contact with the top surface of the workbench, and the labeling roller is perpendicular to the top surface of the workbench. The rubber roller bracket and the arc-shaped rod are on the same side of the upright plate, and the rubber roller bracket is below the arc-shaped rod.

[0016] Preferably, a strip-shaped protrusion is fixedly connected to the side of the rubber roller bracket that is in contact with the worktable, and a strip-shaped groove is opened on the top surface of the worktable. The strip-shaped protrusion and the strip-shaped groove are slidably engaged. Two rubber roller brackets are slidably connected to the top surface of the worktable, and the open sides of the two rubber roller brackets are opposite to each other.

[0017] Preferably, the clamping roller assembly includes a clamping roller, a support platform, and a hydraulic cylinder. The clamping roller is clamped inside the rubber roller bracket, and both ends of the clamping roller are rotatably connected to the rubber roller bracket. The clamping roller is opposite to the labeling roller. A support platform is fixedly connected to one side of the worktable. The support platform and the clamping roller are on the same side of the worktable. A hydraulic cylinder is connected to the top surface of the support platform. The side of the cylinder body of the hydraulic cylinder is fixedly connected to the support platform. One end of the piston rod of the hydraulic cylinder faces the rubber roller bracket and is fixedly connected to the rubber roller bracket.

[0018] Compared with the prior art, the present invention provides a labeling device for the surface of a barrel, which has the following advantages:

[0019] The labeling device on the barrel surface adopts a multi-dimensional adaptive fixing and collaborative driving design, which can accurately adapt to barrels of different specifications, effectively avoid the problem of barrel offset and movement during the labeling process, significantly improve the flatness and positional accuracy of label pasting, and simplify the changeover and debugging process, reducing the difficulty of operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a cross-sectional schematic diagram of the labeling structure of the barrel of this utility model;

[0022] Figure 3 This is a cross-sectional schematic diagram of the bucket lifting structure of this utility model;

[0023] Figure 4 for Figure 3 A magnified view of part A in the diagram.

[0024] In the diagram: 1. Workbench; 2. Vertical plate; 3. Support platform; 4. Hydraulic cylinder; 5. Support plate; 6. Slotted hole one; 7. Connecting rod; 8. Electric rotary table; 9. Clamping box; 10. Motor one; 11. Limiting rod; 12. Arc rod; 13. Rubber roller bracket; 14. Labeling roller; 15. Clamping roller; 16. Slotted groove; 17. Slotted protrusion; 18. Double-rotating lead screw; 19. Slider one; 20. Slotted hole two; 21. Motor two; 22. Lead screw; 23. Slider two. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4 A labeling device for barrel surface includes a workbench 1 and a vertical plate 2, with the vertical plate 2 fixedly connected to the top surface of the workbench 1.

[0027] The bucket lifting structure is installed on the vertical plate 2, and the bucket lifting structure is above the worktable 1.

[0028] The bucket clamping and lifting structure includes a clamping and lifting assembly and a bucket top fixing assembly. The clamping and lifting assembly is on one side of the vertical plate 2, and the bucket top fixing assembly is on the other side of the vertical plate 2.

[0029] The barrel labeling structure is located on the top surface of the workbench 1, and the barrel labeling structure and the barrel top fixing component are on the same side of the vertical plate 2.

[0030] The labeling structure of the barrel includes a labeling roller assembly and a clamping roller assembly, which are located on both sides of the barrel top fixing assembly.

[0031] Furthermore, the clamping and lifting assembly includes a support plate 5, a second motor 21, a lead screw 22, and a second slider 23. The support plate 5 is fixedly connected to one side of the upright plate 2 near the top. The second motor 21 is connected to the top surface of the worktable 1. The second motor 21 is located on the side of the upright plate 2 connected to the support plate 5. The bottom surface of the main body of the second motor 21 is fixedly connected to the worktable 1. The output shaft of the second motor 21 is connected to the lead screw 22 through a coupling. The other end of the lead screw 22 is rotatably connected to the bottom surface of the support plate 5. A threaded hole is opened through one side of the second slider 23. The second slider 23 is sleeved on the lead screw 22 and threadedly connected to the lead screw 22. The support plate 5 is used to install the lead screw 22. The second motor 21 is used to connect the lead screw 22 and drive the lead screw 22 to rotate. The second slider 23 slides on the lead screw 22.

[0032] Furthermore, a slotted hole 6 is provided through the side of the upright plate 2 opposite to the lead screw 22. The slotted hole 6 corresponds to the lead screw 22. A connecting rod 7 is fixedly connected to the side of the slider 23 opposite to the slotted hole 6. The connecting rod 7 passes through the slotted hole 6 and is slidably connected to the slotted hole 6. The slotted hole 6 and the connecting rod 7 are slidably connected to prevent the slider 23 from rotating with the lead screw 22.

[0033] Furthermore, the clamping and lifting assembly also includes an electric rotary table 8 and a clamping box 9. The end of the connecting rod 7 away from the slider 23 is fixedly connected to the side of the electric rotary table 8. The rotating surface of the electric rotary table 8 is opposite to the top surface of the worktable 1. The clamping box 9 is fixedly connected to the rotating surface of the electric rotary table 8. The electric rotary table 8 is used to install the clamping box 9 and make the clamping box 9 rotate. The clamping box 9 is used to install the barrel top fixing assembly.

[0034] Furthermore, the barrel top fixing assembly includes a motor 10, a double-rotating lead screw 18, and a slider 19. The motor 10 is connected to one side of the clamping box 9. The mounting surface of the output shaft of the motor 10 is fixedly connected to the side of the clamping box 9. The output shaft of the motor 10 passes through the clamping box 9 and is rotatably connected to the clamping box 9. The output shaft of the motor 10 is connected to the double-rotating lead screw 18 through a coupling. The other end of the double-rotating lead screw 18 is rotatably connected to the inner wall of the opposite side of the clamping box 9. One side of the slider 19 has a threaded hole. Two sliders 19 are respectively sleeved on the left and right rotating sections of the double-rotating lead screw 18 and are threadedly connected to the double-rotating lead screw 18. The motor 10 is used to drive the double-rotating lead screw 18 to rotate, and the two sliders 19 slide on the double-rotating lead screw 18.

[0035] Furthermore, the barrel top fixing assembly also includes a limiting rod 11 and an arc rod 12. A strip hole 20 is provided through the side of the clamping box 9 facing away from the electric rotating table 8. The strip hole 20 corresponds to the double-rotating screw 18. The limiting rod 11 is fixedly connected to the side of the slider 19 opposite to the strip hole 20. The limiting rod 11 slides through the strip hole 20 and is slidably connected to it. An arc rod 12 is fixedly connected to the end of the limiting rod 11 facing away from the slider 19. The concave surfaces of the two arc rods 12 face each other. The limiting rod 11 and the strip hole 20 are slidably connected to prevent the slider 19 from rotating with the double-rotating screw 18. The arc rod 12 is used to clamp the top of the barrel. The position of the arc rod 12 is adjusted according to the outer diameter and height of the barrel.

[0036] Furthermore, the labeling roller assembly includes a rubber roller bracket 13 and a labeling roller 14. The rubber roller bracket 13 is a C-shaped bracket structure, and the labeling roller 14 is rotatably connected inside the rubber roller bracket 13. One side of the rubber roller bracket 13 is in contact with the top surface of the workbench 1, and the labeling roller 14 is perpendicular to the top surface of the workbench 1. The rubber roller bracket 13 and the arc rod 12 are on the same side of the upright plate 2, and the rubber roller bracket 13 is below the arc rod 12. The rubber roller bracket 13 is used to support the labeling roller 14, and the labeling roller 14 is wrapped with labeling tape.

[0037] Furthermore, a strip-shaped protrusion 17 is fixedly connected to the side of the rubber roller bracket 13 that is in contact with the worktable 1. A strip-shaped groove 16 is provided on the top surface of the worktable 1. The strip-shaped protrusion 17 and the strip-shaped groove 16 are slidably engaged. Two rubber roller brackets 13 are slidably connected on the top surface of the worktable 1. The open sides of the two rubber roller brackets 13 are opposite each other. The strip-shaped protrusion 17 and the strip-shaped groove 16 allow the rubber roller brackets 13 to slide on the worktable 1. The position of the labeling roller 14 on the worktable 1 is adjusted according to the outer diameter of the barrel. Then, the rubber roller brackets 13 are anchored on the worktable 1.

[0038] Furthermore, the clamping roller assembly includes a clamping roller 15, a support platform 3, and a hydraulic cylinder 4. The clamping roller 15 is snapped into the rubber roller bracket 13, and both ends of the clamping roller 15 are rotatably connected to the rubber roller bracket 13. The clamping roller 15 is opposite to the labeling roller 14. The support platform 3 is fixedly connected to one side of the worktable 1. The support platform 3 and the clamping roller 15 are on the same side of the worktable 1. The hydraulic cylinder 4 is connected to the top surface of the support platform 3. The side of the cylinder body of the hydraulic cylinder 4 is fixedly connected to the support platform 3. One end of the piston rod of the hydraulic cylinder 4 faces the rubber roller bracket 13 and is fixedly connected to the rubber roller bracket 13. The clamping roller 15 is used to clamp the barrel and rotates with the labeling roller 14. The support platform 3 is used to support the hydraulic cylinder 4. The hydraulic cylinder 4 pushes the clamping roller 15 to clamp the barrel.

[0039] Structural Description:

[0040] Workbench 1: It is flat and provides a support base for the installation of all structures of the device, supports the barrel and various functional components, and ensures the overall stability during operation;

[0041] Vertical plate 2: It is a vertical plate and is fixed to the top surface of the workbench 1. It serves as the installation carrier for the bucket lifting structure and realizes the spatial separation and positioning of different components.

[0042] Support platform 3: It has a small flat plate structure and is fixed on one side of the workbench 1. It is specifically used to support the installation of hydraulic cylinder 4 and provide a stable power installation reference for the clamping roller assembly.

[0043] Hydraulic cylinder 4: It has a cylindrical cylinder structure and is equipped with a telescopic piston rod. It serves as the power source for the clamping roller assembly and pushes the rubber roller bracket 13 to move so as to clamp or release the barrel.

[0044] Support plate 5: It is rectangular and fixed to the top of the upright plate 2. It is used to support the top of the lead screw 22 and keep the lead screw 22 in a stable vertical state.

[0045] Slotted hole 6: This is a long, narrow through hole opened on the vertical plate 2, corresponding to the position of the lead screw 22, through which the connecting rod 7 passes and provides sliding guidance, preventing the slider 23 from rotating with the lead screw 22;

[0046] Link 7: It is a long rod that connects slider 23 and electric rotary table 8, and transmits the lifting power of slider 23 to drive electric rotary table 8 to move synchronously.

[0047] Electric rotary table 8: It has a disc-shaped main structure and a rotation function. The clamping box 9 is installed on the top, which can drive the barrel to rotate at a constant speed to cooperate with the labeling action.

[0048] Clamping box 9: It has a square box structure and is fixed to the rotating surface of the electric rotary table 8. The inside carries the motor 10, double screw 18 and other components that are installed on the barrel top fixing assembly.

[0049] Motor 10: It has a cylindrical body structure, and its output shaft passes through the clamping box 9. It serves as the power source for the barrel top fixing component and drives the double screw 18 to rotate.

[0050] Limiting rod 11: It is in the shape of a long rod, connecting slider 19 and arc rod 12. As slider 19 moves, it drives arc rod 12 to move, and at the same time slides in the strip hole 20 to prevent rotation.

[0051] Arc rod 12: It is an arc rod with concave surfaces facing each other, which fits against the top side wall of the barrel and achieves clamping and fixing of the top of the barrel by relative movement;

[0052] The rubber roller bracket 13 has a C-shaped frame structure. The inner side can be equipped with the labeling roller 14 and the clamping roller 15. The bottom is slidably connected to the worktable 1 through the strip-shaped protrusion 17 to realize position adjustment.

[0053] Labeling roller 14: It has a cylindrical roller structure and is rotatably connected to the rubber roller bracket 13. The surface is wrapped with labeling tape, and the label is applied to the surface of the barrel by rolling.

[0054] Clamping roller 15: It has a cylindrical roller structure, is clamped in the rubber roller bracket 13 and is opposite to the labeling roller 14, and works with the labeling roller 14 to clamp the barrel and assist in label pressing;

[0055] Strip groove 16: A long strip-shaped groove opened on the top surface of the worktable 1, which cooperates with the strip-shaped protrusion 17 to provide guidance and positioning for the sliding of the rubber roller bracket 13;

[0056] Strip-shaped protrusion 17: It has a long strip-shaped protrusion structure, is fixed to the bottom of the rubber roller bracket 13, and slides and engages with the strip groove 16 to ensure that the rubber roller bracket 13 moves smoothly;

[0057] Double-rotor lead screw 18: It is in the shape of a lead screw, and the rod body is provided with left and right helical thread sections. It is driven to rotate by motor 10, which drives two sliders 19 to move relative to each other or in opposite directions.

[0058] Slider 19: It has a block-shaped structure and a threaded hole. It is sleeved on the double-rotor screw 18 and rotates with the screw through the threaded engagement, driving the limit rod 11 to move.

[0059] Strip-shaped hole 20: This is a long strip-shaped through hole opened on the side of the clamping box 9, corresponding to the double-rotor screw 18, through which the limiting rod 11 passes and provides sliding guidance to prevent the slider 19 from rotating with the double-rotor screw 18;

[0060] Motor 21: It has a cylindrical body structure and is fixed on the top surface of the worktable 1. It serves as the power source for the clamping and lifting assembly, driving the lead screw 22 to rotate to achieve the lifting action.

[0061] Lead screw 22: It is a vertical lead screw with the output shaft of motor 21 and support plate 5 connected at both ends. By rotating, it drives slider 23 to rise and fall along its axis.

[0062] Slider 23: It has a block-shaped structure with a threaded hole and is sleeved on the lead screw 22. It moves up and down by rotating with the lead screw 22 through the threaded engagement, which drives the connecting rod 7 and subsequent components to move.

[0063] Working principle: The operator inputs parameters such as the diameter, height, label length, and bonding pressure of the barrel to be labeled via the touch screen. The PLC system automatically matches the corresponding control program, driving each component back to its initial position. The slider 23 of the clamping and lifting component is located at the top of the lead screw 22, and the arc rod 12 of the barrel top fixing component is in its maximum open state. The position of the labeling roller 14 on the worktable 1 is manually adjusted according to the outer diameter of the barrel. Then, the glue roller bracket 13 is anchored on the worktable 1, and the distance between the labeling roller assembly and the clamping roller assembly is widened to the maximum to leave sufficient space for barrel loading. At the same time, the labeling roller 14 completes the label pre-wrapping, the sensor calibration is zeroed, and when the barrel is conveyed to the center of the worktable 1 via the conveyor line, the photoelectric sensor on the table immediately detects the barrel. The signal is transmitted to the PLC, triggering a fixed process. The PLC first starts the clamping and lifting assembly. After receiving the instruction, motor 21 drives the lead screw 22 to rotate at a constant speed. Slider 23 slides down along the lead screw through the threaded engagement. Connecting rod 7 slides synchronously in the slot 6, forming a guide constraint to prevent slider 2 from rotating with the lead screw. During this process, the electric rotary table 8, which is fixed to the connecting rod, drives the clamping box 9 to descend synchronously until the arc rod 12 of the barrel top fixing assembly drops to a preset height level with the top of the barrel. Motor 2 stops running, completing the axial height positioning of the barrel. After the axial positioning is completed, the barrel top fixing assembly starts, and motor 10 drives the double-rotating lead screw 18 to rotate. Since the two sliders 19 are respectively sleeved on the left and right helical sections of the double-rotating lead screw, they move with the lead screw. The rods rotate to bring them closer together. The limiting rod 11 on slider one slides within the slot 20, preventing slider one from spinning freely with the lead screw. At the same time, it drives the arc rod 12 to move closer to the top side wall of the barrel. When the concave surface of the arc rod contacts the barrel, its built-in pressure sensor provides real-time pressure data. The PLC controls motor one to cut off power and lock it. The arc rod firmly clamps the top of the barrel. After the barrel is fixed, the PLC activates the labeling structure. The hydraulic cylinder 4 on the support platform 3 receives the signal, and the piston rod extends at a constant speed, pushing the rubber roller bracket 13 to move along the guide structure formed by the slot 16 and the slot 17. This allows the labeling roller 14 and the clamping roller 15 to synchronously adhere to the surface of the barrel from both sides. After the labeling action is officially started, the PLC controls the electric rotary table 8 and the labeling roller to move together. The coordinated control of 14, the electric rotary table drives the barrel to rotate at a uniform speed, and its speed is precisely matched with the label feeding speed of the labeling roller through the PLC. The labeling roller rolls synchronously, uniformly affixing the label wrapped on the surface to the barrel surface. The clamping roller assists in pressing as the barrel rotates. When the rotary encoder of the electric rotary table detects that the barrel has been fully or partially labeled, the PLC sends a signal, the labeling roller stops feeding the label, and one labeling cycle is completed. After labeling is completed, each component resets in reverse order. The piston rod of the hydraulic cylinder retracts, driving the rubber roller bracket 13, labeling roller 14, and clamping roller 15 to detach from the barrel. Motor 10 reverses to open the arc rod 12, releasing the top of the barrel. Motor 21 reverses to drive slider 23 and electric rotary table 8 to move upward and return to the initial position.

[0064] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A labeling device for a barrel surface, characterized in that, It includes a workbench (1) and a vertical plate (2), with the vertical plate (2) fixedly connected to the top surface of the workbench (1). The bucket lifting structure is installed on the vertical plate (2) above the workbench (1); The bucket clamping and lifting structure includes a clamping and lifting assembly and a bucket top fixing assembly. The clamping and lifting assembly is located on one side of the vertical plate (2), and the bucket top fixing assembly is located on the other side of the vertical plate (2). The barrel labeling structure is set on the top surface of the workbench (1), and the barrel labeling structure and the barrel top fixing assembly are on the same side of the upright plate (2); The labeling structure of the barrel includes a labeling roller assembly and a clamping roller assembly, which are respectively located on both sides of the barrel top fixing assembly.

2. The labeling device for a barrel surface according to claim 1, characterized in that, The clamping and lifting assembly includes a support plate (5), a second motor (21), a lead screw (22), and a second slider (23). The support plate (5) is fixedly connected to one side of the upright plate (2) near the top. The top surface of the worktable (1) is connected to the second motor (21). The second motor (21) is located on the side of the upright plate (2) connected to the support plate (5). The bottom surface of the main body of the second motor (21) is fixedly connected to the worktable (1). The output shaft of the second motor (21) is connected to the lead screw (22) through a coupling. The other end of the lead screw (22) is rotatably connected to the bottom surface of the support plate (5). A threaded hole is opened through one side of the second slider (23). The second slider (23) is sleeved on the lead screw (22) and threadedly connected to the lead screw (22).

3. A labeling device for a barrel surface according to claim 2, characterized in that, The upright plate (2) has a through-hole (6) on the side opposite to the lead screw (22), the through-hole (6) corresponds to the lead screw (22), and the slider (23) is fixedly connected to a connecting rod (7) on the side opposite to the through-hole (6), the connecting rod (7) slides through the through-hole (6) and is connected to the through-hole (6).

4. A labeling device for a barrel surface according to claim 3, characterized in that, The clamping and lifting assembly also includes an electric rotary table (8) and a clamping box (9). The end of the connecting rod (7) away from the slider (23) is fixedly connected to the side of the electric rotary table (8). The rotating surface of the electric rotary table (8) is opposite to the top surface of the worktable (1). The clamping box (9) is fixedly connected to the rotating surface of the electric rotary table (8).

5. A labeling device for a barrel surface according to claim 4, characterized in that, The barrel top fixing assembly includes a motor (10), a double-rotating screw (18), and a slider (19). The clamping box (9) is connected to one side of the motor (10). The mounting surface of the output shaft of the motor (10) is fixedly connected to the side of the clamping box (9). The output shaft of the motor (10) passes through the clamping box (9) and is rotatably connected to the clamping box (9). The output shaft of the motor (10) is connected to the double-rotating screw (18) through a coupling. The other end of the double-rotating screw (18) is rotatably connected to the inner wall of the clamping box (9) on the opposite side. One side of the slider (19) is provided with a threaded hole. The two sliders (19) are respectively sleeved on the left and right rotating sections of the double-rotating screw (18) and are threadedly connected to the double-rotating screw (18).

6. A labeling device for a barrel surface according to claim 5, characterized in that, The barrel top fixing assembly also includes a limiting rod (11) and an arc rod (12). The clamping box (9) has a through-hole (20) on the side facing away from the electric rotary table (8). The through-hole (20) corresponds to the double-screw screw (18). The limiting rod (11) is fixedly connected to the side of the slider (19) opposite to the through-hole (20). The limiting rod (11) slides through the through-hole (20) and is slidably connected to the through-hole (20). The end of the limiting rod (11) facing away from the slider (19) is fixedly connected to an arc rod (12). The concave surfaces of the two arc rods (12) are opposite to each other.

7. A labeling device for a barrel surface according to claim 6, characterized in that, The labeling roller assembly includes a rubber roller bracket (13) and a labeling roller (14). The rubber roller bracket (13) is a C-shaped bracket structure. The labeling roller (14) is rotatably connected inside the rubber roller bracket (13). One side of the rubber roller bracket (13) is in contact with the top surface of the workbench (1). The labeling roller (14) is perpendicular to the top surface of the workbench (1). The rubber roller bracket (13) and the arc rod (12) are on the same side of the upright plate (2). The rubber roller bracket (13) is below the arc rod (12).

8. A labeling device for a barrel surface according to claim 7, characterized in that, A strip-shaped protrusion (17) is fixedly connected to the side of the rubber roller bracket (1) that is in contact with the workbench (1). A strip-shaped groove (16) is provided on the top surface of the workbench (1). The strip-shaped protrusion (17) and the strip-shaped groove (16) are slidably engaged. Two rubber roller brackets (13) are slidably connected on the top surface of the workbench (1). The opening sides of the two rubber roller brackets (13) are opposite to each other.

9. A labeling device for a barrel surface according to claim 8, characterized in that, The clamping roller assembly includes a clamping roller (15), a support platform (3), and a hydraulic cylinder (4). The clamping roller (15) is clamped in the rubber roller bracket (13). Both ends of the clamping roller (15) are rotatably connected to the rubber roller bracket (13). The clamping roller (15) is opposite to the labeling roller (14). The support platform (3) is fixedly connected to one side of the workbench (1). The support platform (3) and the clamping roller (15) are on the same side of the workbench (1). The hydraulic cylinder (4) is connected to the top surface of the support platform (3). The side of the cylinder body of the hydraulic cylinder (4) is fixedly connected to the support platform (3). One end of the piston rod of the hydraulic cylinder (4) faces the rubber roller bracket (13) and is fixedly connected to the rubber roller bracket (13).

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