A label roll for QR code label production

Abstract

This utility model discloses a label roll for QR code label production, including a base. A first receiving plate and a second receiving plate are fixedly connected to the upper surface of the base. A first rotating plate is clamped onto the second receiving plate via a transmission component, and a second rotating plate is clamped onto the first receiving plate via a clamping component. A roll frame for wrapping labels is provided between the first receiving plate and the second rotating plate. When the motor connected to the motor connector is started, the motor drives the connecting pin and the square clamping shaft to rotate. The square clamping shaft is tightly engaged with the square groove of the first rotating plate. Combined with the push force of the reset spring of the clamping component, the first rotating plate is ensured to rotate synchronously, thereby driving the roll frame to complete the label wrapping, achieving stable and efficient power transmission. When replacing the roll frame or maintaining the equipment, the clamping component pull rod is pulled to compress the reset spring, causing the circular clamping shaft to separate from the circular groove of the clamping device of the second rotating plate, and the second rotating plate can be removed.

Description

Technical Field

[0001] This utility model relates to the field of QR code label production technology, specifically a label roll for QR code label production. Background Technology

[0002] Currently, commercially available label rolls for QR code label production have several shortcomings in structural design and functional implementation. The power transmission structure of some label rolls is not stable enough, easily leading to problems such as uneven power transmission and slippage during label winding, resulting in uneven label winding and affecting production quality and efficiency. Furthermore, the installation and disassembly of the roll holder are cumbersome, requiring multiple tools for complex operations, increasing the time and labor costs of equipment maintenance and roll holder replacement. Therefore, those skilled in the art have provided a label roll for QR code label production to solve the problems mentioned in the background. Utility Model Content

[0003] The purpose of this invention is to provide a label roll for QR code label production, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A label roll for producing QR code labels includes a base, on the upper surface of which a first receiving plate and a second receiving plate are fixedly connected. A first rotating plate is clamped onto the second receiving plate via a transmission assembly, and a second rotating plate is clamped onto the first receiving plate via a clamping assembly. A roll frame for wrapping labels is provided between the first receiving plate and the second rotating plate.

[0006] Furthermore, the transmission assembly includes a motor connector, a square snap-fit ​​shaft, and a connecting pin. The motor connector is fixedly connected to the second receiving plate, and the connecting pin is rotatably connected inside the motor connector. A square snap-fit ​​shaft is provided at one end of the connecting pin.

[0007] Furthermore, the first rotating plate has a square groove for use with the square snap-fit ​​shaft, and the square snap-fit ​​shaft is placed in the square groove.

[0008] Furthermore, the snap-fit ​​assembly includes a first spring limiting sleeve, a fixing plate, a second spring limiting sleeve, a fixing sleeve, and a return spring. A fixing sleeve is fixedly connected to the surface of the first receiving plate, a fixing plate is fixedly connected to one end of the fixing sleeve, a first spring limiting sleeve is fixedly connected to the surface of the fixing plate, a second spring limiting sleeve is sleeved on the surface of the first spring limiting sleeve, and a return spring is provided inside the first spring limiting sleeve and the second spring limiting sleeve.

[0009] Furthermore, the snap-fit ​​assembly also includes a snap-fit ​​plate, a connecting plate, and a pull rod. One end of the second spring limiting sleeve is fixedly connected to the connecting plate, and the surface of the connecting plate is fixedly connected to the pull rod. The pull rod passes through the fixed plate, and the surface of the pull rod is fixedly connected to the snap-fit ​​plate, with the surface of the snap-fit ​​plate tightly attached to the fixed plate.

[0010] Furthermore, the snap-fit ​​assembly also includes a circular snap-fit ​​shaft and a positioning plate. The positioning plate is fixedly connected to the surface of the connecting plate, and a rotary bearing is provided on the inner side wall of the positioning plate. The positioning plate is rotatably connected to the snap-fit ​​shaft through this rotary bearing. A snap-fit ​​device is fixedly connected to the second rotary plate, and a circular groove for cooperating with the circular snap-fit ​​shaft is provided on the snap-fit ​​device.

[0011] Furthermore, the snap-fit ​​assembly also includes a sliding block, a sliding groove is provided on the surface of the first spring limiting sleeve, and a sliding block is fixedly connected to the inner side wall of the second spring limiting sleeve, and the sliding block is slidably connected in the sliding groove.

[0012] By adopting the above technical solution

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The first and second support plates fixedly connected to the base provide a stable support foundation for the entire roll frame, ensuring that the structure will not shake during the label wrapping process. The first and second rotating plates are snapped together by the transmission component and the snap-fit ​​component respectively, making the roll frame easy to install. When the roll frame needs to be replaced or the equipment needs to be maintained, the snap-fit ​​component is designed to facilitate quick disassembly, effectively improving the maintainability and flexibility of the equipment.

[0015] 2. The combined design of the motor connector, square snap-fit ​​shaft, and connecting pin in the transmission assembly achieves stable transmission of motor power. The rotational connection between the motor connector and the connecting pin ensures smooth power transmission, while the cooperation between the square snap-fit ​​shaft and the square groove on the first rotating plate forms a unique anti-slip structure. When the motor drives the connecting pin to rotate, the four planes of the square snap-fit ​​shaft are tightly fitted with the inner wall of the square groove, ensuring that the torque can be transmitted to the first rotating plate without loss. At the same time, the snap-fit ​​assembly further presses the square snap-fit ​​shaft into the square groove through the thrust generated by the return spring. Even under high-speed operation or load changes, it can effectively prevent relative slippage between the two, thereby ensuring that the roll holder can rotate smoothly and efficiently, providing reliable power for continuous label winding.

[0016] 3. The snap-fit ​​assembly, through the cooperation of the first spring limiting sleeve, the return spring, and other components, achieves rapid snap-fit ​​and precise positioning of the second rotating plate. Pulling the pull rod drives the snap-fit ​​plate, connecting plate, and other components to move, compressing the return spring, which can easily separate or snap the circular snap-fit ​​shaft from the circular groove of the snap-fit ​​device on the second rotating plate. The operation is simple and quick. At the same time, the positioning plate surrounds the outside of the snap-fit ​​shaft, further improving the stability and positioning accuracy of the snap-fit, ensuring that the position of the roll frame is fixed during operation, and avoiding the impact of loosening on the label wrapping quality. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of a label roll used for QR code label production;

[0018] Figure 2 A schematic diagram of a half-section structure of a label roll used for QR code label production;

[0019] Figure 3 This is a partial structural diagram of a label roll used for QR code label production;

[0020] Figure 4 In this utility model Figure 2 A magnified schematic diagram of the structure at point A;

[0021] In the diagram: 1. Base; 2. First receiving plate; 3. First rotating plate; 4. Roller frame; 5. Second rotating plate; 6. Second receiving plate; 7. Motor connector; 8. Square snap-fit ​​shaft; 9. Circular snap-fit ​​shaft; 10. Snap-fit ​​device; 11. Sliding groove; 12. First spring limiting sleeve; 13. Fixing plate; 14. Clamping plate; 15. Second spring limiting sleeve; 16. Connecting plate; 17. Positioning plate; 18. Sliding block; 19. Fixing sleeve; 20. Return spring; 21. Connecting pin; 22. Pull rod. Detailed Implementation

[0022] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] Please see Figures 1-4This utility model provides an embodiment of a label roll for QR code label production, including a base 1. A first receiving plate 2 and a second receiving plate 6 are fixedly connected to the upper surface of the base 1. A first rotating plate 3 is snapped onto the second receiving plate 6 through a transmission component. A second rotating plate 5 is snapped onto the first receiving plate 2 through a snapping component. A roll frame 4 for wrapping labels is provided between the first receiving plate 2 and the second rotating plate 5. The base 1 is prepared, and the first receiving plate 2 and the second receiving plate 6 are respectively installed on the upper surface of the base 1 by welding or bolting to ensure that the installation positions of the two are accurate, so as to ensure the stability of the overall structure after the subsequent components are installed.

[0024] In this embodiment, the transmission assembly includes a motor connector 7, a square snap-fit ​​shaft 8, and a connecting pin 21. The motor connector 7 is fixedly connected to the second receiving plate 6, and the connecting pin 21 is rotatably connected inside the motor connector 7. One end of the connecting pin 21 is provided with the square snap-fit ​​shaft 8. The first rotating plate 3 has a square groove for cooperating with the square snap-fit ​​shaft 8, and the square snap-fit ​​shaft 8 is placed in this square groove. The transmission assembly is installed on the second receiving plate 6. The motor connector 7 is fixed to the preset mounting hole position on the second receiving plate 6 with screws. Then, the connecting pin 21 is inserted into the motor connector 7, so that the connecting pin 21 can rotate freely in the motor connector 7. Finally, the square snap-fit ​​shaft 8 is installed at one end of the connecting pin 21. The square snap-fit ​​shaft 8 and the connecting pin 21 can be stably connected by key connection or interference fit. The square groove on the first rotating plate 3 corresponds to the square snap-fit ​​shaft 8 of the transmission assembly. The square snap-fit ​​shaft 8 is inserted into the square groove to complete the snap-fit ​​between the first rotating plate 3 and the transmission assembly.

[0025] In this embodiment, the snap-fit ​​assembly includes a first spring limiting sleeve 12, a fixing plate 13, a second spring limiting sleeve 15, a fixing sleeve 19, and a return spring 20. A fixing sleeve 19 is fixedly connected to the surface of the first receiving plate 2. A fixing plate 13 is fixedly connected to one end of the fixing sleeve 19. A first spring limiting sleeve 12 is fixedly connected to the surface of the fixing plate 13. A second spring limiting sleeve 15 is sleeved on the surface of the first spring limiting sleeve 12. A return spring 20 is disposed inside the first spring limiting sleeve 12 and the second spring limiting sleeve 15. The snap-fit ​​assembly also includes a snap-fit ​​plate 14, a connecting plate 16, and a pull rod. A connecting plate 16 is fixedly connected to one end of the second spring limiting sleeve 15. A pull rod is fixedly connected to the surface of the connecting plate 16, passing through the fixing plate 13. A snap-fit ​​plate 14 is fixedly connected to the surface of the pull rod, and the surface of the snap-fit ​​plate 14 is tightly attached to the fixing plate 13. On the fixed plate 13, the snap-fit ​​assembly also includes a circular snap-fit ​​shaft 9 and a positioning plate 17. The positioning plate 17 is fixedly connected to the surface of the connecting plate 16. A rotary bearing is provided on the inner side wall of the positioning plate 17, and the snap-fit ​​shaft is rotatably connected to the positioning plate 17 through this rotary bearing. A snap-fit ​​device 10 is fixedly connected to the second rotating plate 5. A circular groove for cooperating with the circular snap-fit ​​shaft 9 is opened on the snap-fit ​​device 10. The snap-fit ​​assembly also includes a sliding block 18. A sliding groove 11 is opened on the surface of the first spring limiting sleeve 12. A sliding block 18 is fixedly connected to the inner side wall of the second spring limiting sleeve 15, and the sliding block 18 is slidably connected in the sliding groove 11. The snap-fit ​​assembly is installed on the first receiving plate 2. First, the fixing sleeve 19 is fixed to the surface of the first receiving plate 2. The fixing plate 13 is installed at one end of the fixing sleeve 19, which can be connected by welding or bolts. A first spring limiting sleeve 12 is fixed on the surface of the fixing plate 13. The reset spring 20 is placed inside the first spring limiting sleeve 12. Then, the second spring limiting sleeve 15 is fitted over the first spring limiting sleeve 12, so that the sliding block 18 on the inner side wall of the second spring limiting sleeve 15 corresponds to and cooperates with the sliding groove 11 on the surface of the first spring limiting sleeve 12, ensuring that the second spring limiting sleeve 15 can slide along the direction of the sliding groove 11. A connecting plate 16 is fixed at one end of the second spring limiting sleeve 15. A pull rod is installed on the surface of the connecting plate 16. The pull rod passes through the fixing plate 13 and a clamping plate 14 is fixed at its end, so that the surface of the clamping plate 14 is in close contact with the fixing plate 13. A positioning plate 17 is installed on the other side, and the positioning plate 17 is rotatably connected to a circular clamping shaft 9 through a bearing, which can effectively reduce the friction of the circular clamping shaft 9. The circular groove of the clamping device 10 fixed on the second rotating plate 5 corresponds to the circular clamping shaft 9 of the clamping assembly. Pulling the pull rod causes the clamping plate 14 to move the connecting plate 16, the circular clamping shaft 9 and other components, compressing the return spring 20, inserting the circular clamping shaft 9 into the circular groove, and releasing the pull rod. Under the action of the return spring 20, the circular clamping shaft 9 is pressed into the circular groove, completing the clamping of the second rotating plate 5 and the clamping assembly.

[0026] Start the motor connected to motor connector 7. The motor drives the connecting pin 21 and the square snap-fit ​​shaft 8 to rotate. The square snap-fit ​​shaft 8 fits tightly with the square groove of the first rotating plate 3. Combined with the thrust of the snap-fit ​​assembly return spring 20, the first rotating plate 3 rotates synchronously, thereby driving the roll frame 4 to complete the label wrapping, achieving stable and efficient power transmission. When replacing the roll frame 4 or maintaining the equipment, pull the snap-fit ​​assembly pull rod to compress the return spring 20, causing the circular snap-fit ​​shaft 9 to separate from the circular groove of the snap-fit ​​device 10 of the second rotating plate 5, allowing the second rotating plate 5 to be removed. The first rotating plate 3 is then pulled out from the square snap-fit ​​shaft 8, completing the disassembly. Installation is performed in reverse order for quick and convenient installation.

[0027] The first receiving plate 2 and the second receiving plate 6, fixedly connected to the base 1, provide a stable support foundation for the entire roll frame 4, ensuring that the structure will not shake during label wrapping. The first rotating plate 3 and the second rotating plate 5 are snapped together by the transmission component and the snap-fit ​​component, respectively, making the roll frame 4 easy to install. When the roll frame 4 needs to be replaced or the equipment needs to be maintained, the snap-fit ​​component design facilitates quick disassembly, effectively improving the maintainability and flexibility of the equipment. The combination design of the motor connector 7, the square snap-fit ​​shaft 8 and the connecting pin 21 in the transmission component realizes the stable transmission of motor power. The rotational connection between the motor connector 7 and the connecting pin 21 ensures the smoothness of power transmission, while the cooperation between the square snap-fit ​​shaft 8 and the square groove on the first rotating plate 3 forms a unique anti-slip structure. When the motor drives the connecting pin 21 to rotate, the four planes of the square snap-fit ​​shaft 8 are tightly fitted with the inner wall of the square groove, ensuring that the torque is transmitted without loss. The energy is transferred to the first rotating plate 3. At the same time, the snap-fit ​​assembly, through the thrust generated by the return spring 20, further presses the square snap-fit ​​shaft 8 into the square groove. Even under high-speed operation or load changes, it can effectively prevent relative slippage between the two, thereby ensuring that the roll frame 4 can rotate smoothly and efficiently, providing reliable power for continuous label winding. The snap-fit ​​assembly, through the cooperation of the first spring limit sleeve 12, return spring 20 and other components, realizes the quick snap-fit ​​and precise positioning of the second rotating plate 5. Pulling the pull rod drives the snap-fit ​​plate 14, connecting plate 16 and other components to move, compressing the return spring 20, which can easily separate or snap the circular snap-fit ​​shaft 9 from the circular groove of the snap-fit ​​device 10 on the second rotating plate 5. The operation is simple and quick. At the same time, the positioning plate 17 surrounds the outside of the snap-fit ​​shaft, further improving the stability and positioning accuracy of the snap-fit, ensuring that the position of the roll frame 4 is fixed during the operation, and avoiding the impact of loosening on the label winding quality.

[0028] This specification describes embodiments, but not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A label roll for two-dimensional code label production, comprising a base (1), characterized in that, The base (1) has a first receiving plate (2) and a second receiving plate (6) fixedly connected to its upper surface. The second receiving plate (6) is connected to a first rotating plate (3) via a transmission assembly. The first receiving plate (2) is connected to a second rotating plate (5) via a snap-fit ​​assembly. A roll frame (4) for wrapping labels is provided between the first receiving plate (2) and the second rotating plate (5).

2. The label roll for two-dimensional code label production according to claim 1, wherein The transmission assembly includes a motor connector (7), a square snap-fit ​​shaft (8), and a connecting pin (21). The motor connector (7) is fixedly connected to the second receiving plate (6), and the connecting pin (21) is rotatably connected inside the motor connector (7). A square snap-fit ​​shaft (8) is provided at one end of the connecting pin (21).

3. The label roll for two-dimensional code label production according to claim 2, wherein The first rotating plate (3) has a square groove for use with the square snap-fit ​​shaft (8), and the square snap-fit ​​shaft (8) is placed in the square groove.

4. The label roll for two-dimensional code label production according to claim 3, wherein The snap-fit ​​assembly includes a first spring limiting sleeve (12), a fixing plate (13), a second spring limiting sleeve (15), a fixing sleeve (19), and a return spring (20). The fixing sleeve (19) is fixedly connected to the surface of the first receiving plate (2). The fixing plate (13) is fixedly connected to one end of the fixing sleeve (19). The first spring limiting sleeve (12) is fixedly connected to the surface of the fixing plate (13). The second spring limiting sleeve (15) is sleeved on the surface of the first spring limiting sleeve (12). The return spring (20) is provided inside the first spring limiting sleeve (12) and the second spring limiting sleeve (15).

5. The label roll for two-dimensional code label production according to claim 4, wherein The snap-fit ​​assembly also includes a snap-fit ​​plate (14), a connecting plate (16) and a pull rod. One end of the second spring limiting sleeve (15) is fixedly connected to the connecting plate (16), and the surface of the connecting plate (16) is fixedly connected to the pull rod. The pull rod passes through the fixed plate (13), and the surface of the pull rod is fixedly connected to the snap-fit ​​plate (14). The surface of the snap-fit ​​plate (14) is tightly attached to the fixed plate (13).

6. The label roll for two-dimensional code label production according to claim 5, wherein The snap-fit ​​assembly also includes a circular snap-fit ​​shaft (9) and a positioning plate (17). The positioning plate (17) is fixedly connected to the surface of the connecting plate (16). A rotary bearing is provided on the inner side wall of the positioning plate (17), and the snap-fit ​​shaft is rotatably connected to the positioning plate (17) through this rotary bearing. A snap-fit ​​device (10) is fixedly connected to the second rotating plate (5). A circular groove for cooperating with the circular snap-fit ​​shaft (9) is provided on the snap-fit ​​device (10).

7. The label roll for two-dimensional code label production according to claim 6, wherein The snap-fit ​​assembly also includes a sliding block (18), a sliding groove (11) is provided on the surface of the first spring limiting sleeve (12), and the sliding block (18) is fixedly connected to the inner side wall of the second spring limiting sleeve (15), and the sliding block (18) is slidably connected in the sliding groove (11).

Images