A slitting device for adhesive labels and adhesive label

Abstract

This invention relates to the field of slitting equipment, and particularly to a slitting device for self-adhesive labels and the self-adhesive labels themselves. The slitting device includes a loading rod, a planar moving platform, a slitting mechanism, and a control console. The loading rod is installed within the equipment body and is used to mount self-adhesive labels wound in a disc shape. The planar moving platform is located on one side of the loading rod and can move horizontally. The slitting mechanism is fixed to the planar moving platform and is used to slit the self-adhesive labels. The control console is mounted on the equipment body and electrically connected to the loading rod, the planar moving platform, and the slitting mechanism. It controls the planar moving platform to a preset position and activates the slitting mechanism and the loading rod, thereby slitting the disc-shaped self-adhesive labels. This achieves automated control of the slitting operation, replacing manual adjustment and operation, and significantly improving the production efficiency of the slitting operation. The control console precisely controls the movement position of the planar moving platform.

Description

Technical Field

[0001] This invention relates to the field of slitting equipment, and in particular to a slitting device for self-adhesive labels and a self-adhesive label. Background Technology

[0002] Self-adhesive labels are widely used in various fields such as product packaging, logistics identification, and information labeling due to their convenient application and wide applicability. The market demands increasing specifications, processing precision, and production efficiency. Slitting is one of the core processes in the production and processing of self-adhesive labels, requiring the entire roll of labels to be cut into widths and lengths that meet usage requirements.

[0003] The existing self-adhesive label slitting equipment has the following problems in practical applications: the loading and fixing structure of the disc-shaped wound self-adhesive labels is not reasonably designed. It often adopts a simple sleeve set and bolt tightening method, which has poor fixing firmness to the inner circle of the label. During the slitting process, the label is prone to rotation and displacement, resulting in low slitting accuracy and high defect rate.

[0004] In addition, the loading structure has poor adaptability and cannot flexibly adapt to disc-shaped self-adhesive labels with different inner diameters and widths. Different specifications of loading components need to be replaced, which increases processing costs and reduces production efficiency. Summary of the Invention

[0005] Therefore, it is necessary to provide a self-adhesive label slitting device and self-adhesive labels to address the above-mentioned technical problems, so as to realize the automated control of the slitting operation, replace manual adjustment and operation, and greatly improve the production efficiency of the slitting operation.

[0006] This invention provides a cutting device for self-adhesive labels, comprising: Loading rods, installed inside the equipment body, are used to mount self-adhesive labels that are wound in a disc shape; A planar moving platform, located on one side of the loading rod, can move horizontally; The slitting mechanism, fixed to the planar moving platform, is used to slit self-adhesive labels; The control console, mounted on the device body and electrically connected to the loading rod, the planar moving platform, and the slitting mechanism, is used to control the planar moving platform to move to a preset position and to start the slitting mechanism and the loading rod, thereby slitting the self-adhesive labels that are wound in a disc shape.

[0007] In one embodiment, the loading rod includes an outer tube, an inner top rod, and a telescopic limiting member; the outer tube has multiple mounting holes on its surface, and each mounting hole is into which a telescopic limiting member is inserted. When a disc-shaped self-adhesive label is placed on the outer tube, the inner top rod is inserted into the inner part of the outer tube and pushes the multiple telescopic limiting members to move away from the central axis of the outer tube, thereby abutting and fixing the inner ring of the disc-shaped self-adhesive label.

[0008] In one embodiment, multiple sets of mounting ports are provided, with multiple mounting ports in the same set distributed around the central axis of the outer sleeve, and the multiple sets of mounting ports are partially along the central axis of the outer sleeve.

[0009] In one embodiment, the telescopic limiting member includes an insert block and a limiting plate; the insert block is inserted into the mounting port, the limiting plate is located at the end of the insert block outside the outer tube, and the size of the limiting plate is larger than the size of the mounting port. The surface of the limiting plate is provided with an anti-slip groove, and the other end of the insert block is provided with a curved surface at the connection point with the side facing the central axis of the outer tube.

[0010] In one embodiment, a first limiting rod is provided in the mounting port, and a first slot is opened at one side end of the insert block, extending to the other side end, and the first limiting rod passes through the first slot.

[0011] In one embodiment, a second slot is provided at the top of the first slot, and a spring is provided inside the second slot. The two ends of the spring are respectively connected to the top of the second slot and the first limiting rod.

[0012] In one embodiment, the same group of mounting ports are distributed at intervals along the central axis of the outer sleeve, while also surrounding the central axis of the outer sleeve.

[0013] In one embodiment, the inner surface of the outer sleeve is provided with a plurality of positioning grooves in a ring array. One end of each positioning groove passes through the end of the outer sleeve, while the other end does not pass through. Each positioning groove is connected to one of the mounting ports in the same group.

[0014] In one embodiment, the inner top rod includes an end plate, a second limiting rod, and an insert rod; two second limiting rods are disposed on the surface of the insert rod, the insert rod is inserted into the inside of the outer sleeve, the second limiting rod is engaged in the positioning groove, and is used to abut against the curved surface of the insert block in the mounting port communicating with the positioning groove, and the end plate is disposed at one end of the second limiting rod.

[0015] The present invention also provides a self-adhesive label, which is processed using the self-adhesive label slitting equipment described in any of the above embodiments, and includes a fixing ring and a self-adhesive label body wound on the fixing ring.

[0016] The aforementioned self-adhesive label slitting equipment and self-adhesive labels include a loading rod that pre-assembles and secures the self-adhesive labels in a disc shape. After receiving preset slitting parameters, the control console sends a control signal to the planar moving platform, driving the platform to move precisely horizontally to the preset slitting position. Once the planar moving platform is in place, the control console simultaneously sends a start signal to the slitting mechanism and the loading rod. The loading rod drives the disc-shaped self-adhesive labels to rotate at a uniform speed, and the slitting mechanism continuously slits the rotating self-adhesive labels. Throughout the process, the control console centrally controls the timing and operating status of each component. The system automates the slitting process, replacing manual adjustment and operation, and significantly improving production efficiency. The control console precisely controls the movement of the planar moving platform, ensuring accurate slitting and improving the slitting precision of self-adhesive labels. The modular design of the overall structure allows the loading rods, planar moving platform, and slitting mechanism to each perform their respective functions with clear coordination logic, facilitating installation, maintenance, and repair. All components are electrically connected to the same control console, ensuring high synchronization of actions and avoiding slitting errors caused by individual component operation, thus reducing the defect rate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A three-dimensional structural diagram of the self-adhesive label slitting device provided by the present invention; Figure 2 One of the three-dimensional structural schematic diagrams of the loading rod provided by the present invention; Figure 3 A schematic diagram of the planar structure of the loading rod provided by the present invention; Figure 4 A partial structural schematic diagram of the loading rod provided by the present invention; Figure 5 A cross-sectional structural diagram of the telescopic limiting member provided by the present invention; Figure 6 A second three-dimensional structural schematic diagram of the loading rod provided by the present invention; Figure 7 This is a schematic diagram of the outer sleeve provided by the present invention; Figure 8This is a schematic diagram of the internal push rod provided by the present invention.

[0019] Figure label: 100. Equipment body; 200. Loading rod; 210. Outer sleeve; 211. Mounting port; 212. First limiting rod; 213. Positioning groove; 220. Inner top rod; 221. End plate; 222. Second limiting rod; 223. Insert rod; 230. Telescopic limiting component; 231. Insert block; 2311. Curved surface; 2312. First slot; 2313. Second slot; 232. Limiting plate; 2321. Anti-slip groove; 233. Spring; 300. Planar moving platform; 400. Cutting mechanism; 500. Control console. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The following is combined Figures 1 to 8 This invention describes a cutting device for self-adhesive labels and a self-adhesive label.

[0022] like Figure 1 As shown, in one embodiment, a self-adhesive label slitting device includes a loading rod 200, a planar moving platform 300, a slitting mechanism 400, and a control console 500. The loading rod 200 is installed inside the device body 100 and is used to load self-adhesive labels wound in a disc shape. The planar moving platform 300 is located on one side of the loading rod 200 and can move horizontally. The slitting mechanism 400 is fixed to the planar moving platform 300 and is used to slit the self-adhesive labels. The control console 500 is disposed on the device body 100 and electrically connected to the loading rod 200, the planar moving platform 300, and the slitting mechanism 400. It is used to control the planar moving platform 300 to move to a preset position and to start the slitting mechanism 400 and the loading rod 200, thereby slitting the self-adhesive labels wound in a disc shape.

[0023] In the aforementioned self-adhesive label slitting equipment, the loading rod 200 pre-mounts and fixes the self-adhesive labels in a disc shape. After receiving the preset slitting parameters, the control console 500 sends a control signal to the planar moving platform 300, driving the planar moving platform 300 to move precisely in the horizontal direction to the preset slitting position. After the planar moving platform 300 is in place, the control console 500 simultaneously sends a start signal to the slitting mechanism 400 and the loading rod 200. The loading rod 200 drives the disc-shaped self-adhesive labels to rotate at a uniform speed, and the slitting mechanism 400 performs continuous slitting operations on the rotating self-adhesive labels. Throughout the entire process, the control console 500 centrally controls the timing and operating status of each component. The system achieves automated control of the slitting operation, replacing manual adjustment and operation, and significantly improving the production efficiency of the slitting operation. The control console 500 precisely controls the movement position of the planar moving platform 300, ensuring the accuracy of the slitting position and improving the slitting precision of the self-adhesive labels. The overall structure of the equipment is modularly designed, with the loading rod 200, the planar moving platform 300, and the slitting mechanism 400 each performing their respective functions, with clear coordination logic, which facilitates the installation, maintenance, and repair of the equipment. All components are electrically connected to the same control console 500, with high synchronization of action sequence, avoiding slitting errors caused by individual operation of components and reducing the defect rate.

[0024] like Figure 2 and Figure 3 As shown, in one embodiment, the loading rod 200 includes an outer tube 210, an inner top rod 220, and a telescopic limiting member 230. The outer tube 210 has multiple mounting holes 211 on its surface, and a telescopic limiting member 230 is inserted into each mounting hole 211. When a self-adhesive label wound in a disc shape is placed on the outer tube 210, the inner top rod 220 is inserted into the outer tube 210 and pushes the multiple telescopic limiting members 230 to move away from the central axis of the outer tube 210, thereby abutting and fixing the inner ring of the self-adhesive label wound in a disc shape.

[0025] Specifically, the loading rod 200 consists of an outer tube 210, an inner push rod 220, and a telescopic limiting member 230. The disc-shaped self-adhesive label is first fitted onto the outside of the outer tube 210. Then, the inner push rod 220 is axially inserted into the inside of the outer tube 210. During the insertion process, the inner push rod 220 abuts against the telescopic limiting member 230, pushing multiple telescopic limiting members 230 to move radially away from the central axis of the outer tube 210 along the mounting port 211 until the telescopic limiting member 230 is tightly abutted against the inner ring of the self-adhesive label, thus completing the coaxial fixation of the label and preventing the label from rotating relative to the outer tube 210 during cutting.

[0026] The inner ring of the label is fixed by pushing the telescopic limiting component 230 outward with the inner push rod 220. The fixing process does not require additional bolts, clips or other accessories, making it easy to operate. The telescopic limiting component 230 and the inner ring of the label have a surface contact abutment, which provides strong fixation and effectively prevents the label from rotating or shifting during cutting, ensuring cutting accuracy. The telescopic limiting component 230 can move radially, which can adapt to disc-shaped self-adhesive labels with different inner diameters, improves the adaptability of the loading rod 200 and reduces the cost of component replacement.

[0027] In one embodiment, multiple sets of mounting ports 211 are provided, with multiple mounting ports 211 in the same set distributed around the central axis of the outer sleeve 210, and multiple sets of mounting ports 211 partially along the central axis direction of the outer sleeve 210.

[0028] Specifically, the mounting ports 211 on the outer sleeve 210 are configured as multiple sets of structures. Multiple mounting ports 211 in the same set are evenly distributed in a ring around the central axis of the outer sleeve 210. Multiple sets of mounting ports 211 are axially spaced along the central axis of the outer sleeve 210. Each set of mounting ports 211 is inserted with a telescopic limiting member 230, so that the telescopic limiting member 230 abuts and fixes the inner ring of the self-adhesive label from multiple angles in the circumferential direction and multiple segments in the axial direction.

[0029] The circumferentially distributed telescopic limiting members 230 ensure uniform circumferential force on the inner ring of the label, preventing deformation of the inner ring due to excessive local force. The axially multi-segmented telescopic limiting members 230 achieve multi-point axial fixation of the inner ring of the label, preventing the label from moving axially along the outer sleeve 210 during cutting, further improving the fixation stability. The layout design of multiple sets of mounting ports 211 is suitable for disc-shaped self-adhesive labels of different widths. The corresponding set of telescopic limiting members 230 can be selected according to the label width, further improving adaptability.

[0030] like Figure 4 As shown, in one embodiment, the telescopic limiting member 230 includes an insert block 231 and a limiting plate 232; the insert block 231 is inserted into the mounting port 211, the limiting plate 232 is located at the end of the insert block 231 outside the outer tube 210, and the size of the limiting plate 232 is larger than the size of the mounting port 211. The surface of the limiting plate 232 is provided with an anti-slip groove 2321, and the other end of the insert block 231 is provided with a curved surface 2311 at the connection between it and the side facing the central axis of the outer tube 210.

[0031] Specifically, the telescopic limiting component 230 consists of an insert block 231 and a limiting plate 232. The insert block 231 is inserted into the mounting port 211 to achieve the basic installation of the telescopic limiting component 230. The limiting plate 232 is located on the outer end of the insert block 231 and its size is larger than the mounting port 211 to prevent the insert block 231 from falling completely into the outer sleeve 210 when pushed by the inner push rod 220. The connection between the inner end of the insert block 231 and the central axis of the outer sleeve 210 is provided with a curved surface 2311 so that when the inner push rod 220 is inserted, the contact between it and the insert block 231 is a curved surface 2311, which reduces the pushing resistance and achieves smooth contact. The surface of the limiting plate 232 is provided with an anti-slip groove 2321 to increase the contact friction between the limiting plate 232 and the inner ring of the label and improve the fixing effect.

[0032] The curved surface 2311 design of the insert block 231 makes the pushing process of the inner push rod 220 smoother, avoiding component jamming and wear caused by hard contact, and improving the service life of the equipment; the anti-drop design of the limiting plate 232 ensures the structural reliability of the telescopic limiting component 230 and avoids processing interruption caused by component detachment; the anti-slip groove 2321 increases the contact friction, further preventing relative sliding between the label and the loading rod 200 during cutting, and improving the fixing firmness; the integrated structural design of the insert block 231 and the limiting plate 232 makes processing and assembly convenient and reduces production and manufacturing costs.

[0033] like Figure 5 As shown, in one embodiment, a first limiting rod 212 is provided in the mounting port 211, and a first slot 2312 extending to the other side is provided on the side end of the insert block 231, through which the first limiting rod 212 passes.

[0034] Specifically, a first limiting rod 212 is provided in the installation port 211, and a through first slot 2312 is opened on the side end of the insert 231. The first limiting rod 212 is inserted into the first slot 2312, so that the radial movement of the insert 231 is along the extension direction of the first limiting rod 212. At the same time, the first limiting rod 212 restricts the insert 231 from circumferential rotation, tilting or other offset during the movement.

[0035] The first limiting rod 212 provides precise guidance for the movement of the insert 231, ensuring that the telescopic limiting member 230 always moves in a straight line along the radial direction, avoiding uneven label fixation caused by offset; it restricts the circumferential rotation of the insert 231, preventing the telescopic limiting member 230 from getting stuck in the mounting port 211, and improving the operational stability of the component; the cooperation structure between the first limiting rod 212 and the first slot 2312 is simple, requiring no complex guiding components, reducing the difficulty of structural design and processing.

[0036] In one embodiment, a second slot 2313 is provided at the top of the first slot 2312, and a spring 233 is provided inside the second slot 2313. The two ends of the spring 233 are respectively connected to the top of the second slot 2313 and the first limiting rod 212.

[0037] Specifically, a second slot 2313 is opened at the top of the first slot 2312. A spring 233 is installed in the second slot 2313, and the two ends of the spring 233 are respectively connected to the top of the second slot 2313 and the first limiting rod 212. When the inner push rod 220 is inserted and pushes the insert block 231 to move outward, the insert block 231 drives the second slot 2313 to move relative to the first limiting rod 212. The spring 233 is compressed and stores elastic potential energy. When the cutting is completed and the inner push rod 220 is pulled out, the spring 233 releases elastic potential energy and generates a rebound force, which drives the insert block 231 to reset along the first limiting rod 212 towards the central axis of the outer sleeve 210 and retract into the mounting port 211.

[0038] The elasticity of spring 233 enables the automatic reset of telescopic limit component 230, eliminating the need for manual reset and greatly simplifying the disassembly and assembly of self-adhesive labels, thus improving processing efficiency. The stable rebound force of spring 233 ensures a smooth and uniform reset process for insert block 231, preventing component collisions and wear caused by excessively rapid reset. Spring 233 is built into the second slot 2313, effectively protecting it from dust, label debris, and other impurities that could affect its elasticity, thereby improving the service life and operational reliability of the component.

[0039] like Figure 6 As shown, in one embodiment, the same set of mounting ports 211 are distributed at intervals along the central axis of the outer sleeve 210 while surrounding the central axis of the outer sleeve 210.

[0040] Specifically, the layout of the same set of mounting ports 211 is optimized so that they are distributed circumferentially around the central axis of the outer sleeve 210, and also spaced out along the axial direction of the central axis of the outer sleeve 210. This allows multiple telescopic limiting members 230 in the same set to not only abut against the inner ring of the label circumferentially, but also form multi-point support in a small segment in the axial direction. Combined with the axial distribution of multiple sets of mounting ports 211, this achieves full circumferential coverage of the inner ring of the label and multi-segment three-dimensional abutment and fixation in the axial direction.

[0041] The axial spacing of the same set of mounting ports 211 further improves the uniformity of force on the inner ring of the label, avoiding label deformation caused by local stress concentration; it achieves three-dimensional fixation of the inner ring of the label, and the fixation stability is far superior to the single-direction contact fixation, completely eliminating the circumferential rotation and axial movement of the label during cutting; it is compatible with narrower disc-shaped self-adhesive labels, and even if the label width is small, it can achieve multi-point fixation, improving the compatibility range of the loading rod 200.

[0042] like Figure 7As shown, in one embodiment, the inner surface of the outer sleeve 210 is provided with a plurality of positioning grooves 213 in a ring array. One end of the positioning groove 213 passes through the end of the outer sleeve 210, and the other end does not pass through. Each positioning groove 213 is connected to a mounting port 211 in the same group.

[0043] Specifically, multiple positioning grooves 213 are arranged in a ring array on the inner surface of the outer sleeve 210. One end of the positioning groove 213 passes through the end of the outer sleeve 210 to facilitate the insertion and guidance of the inner push rod 220, while the other end does not pass through to form a limit and prevent the inner push rod 220 from being over-inserted. Each positioning groove 213 is connected to a mounting port 211 in the same group, so that the extension direction of the positioning groove 213 matches the movement direction of the corresponding mounting port 211 inner insert block 231. When the inner push rod 220 moves along the positioning groove 213, it can be accurately aligned with the curved surface 2311 of the insert block 231.

[0044] The positioning groove 213 provides precise circumferential and axial guidance for the insertion of the inner push rod 220, ensuring that the inner push rod 220 and the curved surface 2311 of the insertion block 231 are precisely fitted, avoiding uneven pushing and component jamming caused by misalignment. The closed end of the positioning groove 213 limits the insertion depth of the inner push rod 220, preventing excessive insertion that could cause damage to the telescopic limit member 230 due to excessive pushing, while ensuring that the extension length of each telescopic limit member 230 is consistent, so that the inner ring of the label is subjected to uniform force. The structural design of the positioning groove 213 communicating with the mounting port 211 allows the thrust of the inner push rod 220 to be directly transmitted to the insertion block 231, reducing force loss and improving pushing efficiency.

[0045] like Figure 8 As shown, in one embodiment, the inner top rod 220 includes an end plate 221, a second limiting rod 222, and an insert rod 223; the two second limiting rods 222 are disposed on the surface of the insert rod 223, the insert rod 223 is inserted into the outer sleeve 210, the second limiting rods 222 are engaged in the positioning groove 213, and are used to abut against the curved surface 2311 of the insert block 231 in the mounting port 211 communicating with the positioning groove 213, and the end plate 221 is disposed at one end of the second limiting rod 222.

[0046] Specifically, the inner push rod 220 is integrally formed by the end plate 221, the second limiting rod 222, and the insertion rod 223. The insertion rod 223 is the main structure for axially inserting into the outer sleeve 210. The two second limiting rods 222 are set on the surface of the insertion rod 223 and are adapted to the positioning groove 213 of the outer sleeve 210. When the insertion rod 223 is inserted into the outer sleeve 210, the second limiting rods 222 are engaged in the positioning groove 213 and move along the extension direction of the positioning groove 213. During the movement, the end of the second limiting rod 222 precisely abuts against the curved surface 2311 of the insertion block 231, pushing the insertion block 231 to move outward. The end plate 221 is set on the outer end of the second limiting rod 222, providing a force point for the operator, facilitating the insertion and removal operation of the inner push rod 220, and limiting the maximum insertion depth of the inner push rod 220.

[0047] The snap-fit ​​between the second limiting rod 222 and the positioning groove 213 ensures that the movement of the inner push rod 220 is free from circumferential deviation, guaranteeing consistent pushing force on each insertion block 231 and enabling synchronous extension of the telescopic limiting component 230, thus improving the uniformity of label fixing. The integrated design of the insertion rod 223 and the second limiting rod 222 provides high structural strength, enabling it to withstand greater thrust and preventing bending or breakage during use. The design of the end plate 221 significantly improves the convenience of inserting and removing the inner push rod 220, while also achieving dual depth limiting, further ensuring the safety of the equipment and labels. The structural design of the inner push rod 220 is highly compatible with the outer sleeve 210 and the telescopic limiting component 230, resulting in high compatibility among components, smooth operation, and improved overall equipment reliability.

[0048] In one embodiment, a self-adhesive label, processed using a self-adhesive label slitting device according to any of the above embodiments, includes a retaining ring and a self-adhesive label body wound on the retaining ring.

[0049] Specifically, the precise cutting and secure fixing of the slitting equipment ensures that the processed label body is of accurate specifications, free from issues such as offset, burrs, and warping, significantly improving label quality. The label body is wound around the fixing ring, ensuring neat winding of the finished label and preventing unraveling or tangling, thus improving the convenience of label storage, transportation, and use. The design of the fixing ring allows for smooth unwinding of the label during subsequent application, preventing label sticking and tearing. The fixing ring is compatible with the loading rod 200 of the slitting equipment, eliminating the need for additional fixing accessories during processing, achieving integrated label processing and forming, and improving production efficiency.

[0050] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A self-adhesive label slitting device, characterized in that, include: Loading rods, installed inside the equipment body, are used to mount self-adhesive labels that are wound in a disc shape; A planar moving platform, located on one side of the loading rod, can move horizontally; The slitting mechanism, fixed to the planar moving platform, is used to slit self-adhesive labels; The control console, mounted on the device body and electrically connected to the loading rod, the planar moving platform, and the slitting mechanism, is used to control the planar moving platform to move to a preset position and to start the slitting mechanism and the loading rod, thereby slitting the self-adhesive labels that are wound in a disc shape.

2. The self-adhesive label slitting equipment according to claim 1, characterized in that, The loading rod includes an outer tube, an inner top rod, and a telescopic limiting member. The outer tube has multiple mounting holes on its surface, and a telescopic limiting member is inserted into each mounting hole. When a self-adhesive label wound in a disc shape is placed on the outer tube, the inner top rod is inserted into the inner part of the outer tube and pushes the multiple telescopic limiting members to move away from the central axis of the outer tube, thereby abutting and fixing the inner ring of the self-adhesive label wound in a disc shape.

3. The self-adhesive label slitting equipment according to claim 2, characterized in that, The mounting ports are provided in multiple sets, and multiple mounting ports in the same set are distributed around the central axis of the outer sleeve, with the multiple sets of mounting ports partially along the central axis of the outer sleeve.

4. The self-adhesive label slitting equipment according to claim 3, characterized in that, The telescopic limiting component includes an insert block and a limiting plate; the insert block is inserted into the mounting port, the limiting plate is located at the end of the insert block outside the outer tube, and the size of the limiting plate is larger than the size of the mounting port. The surface of the limiting plate is provided with an anti-slip groove, and the other end of the insert block is provided with a curved surface at the connection point with the side facing the central axis of the outer tube.

5. The self-adhesive label slitting equipment according to claim 4, characterized in that, A first limiting rod is provided inside the installation port, and a first slot is opened on the side end of the insertion block, which extends to the other side end. The first limiting rod passes through the first slot.

6. The self-adhesive label slitting equipment according to claim 5, characterized in that, A second slot is provided at the top of the first slot, and a spring is provided in the second slot. The two ends of the spring are respectively connected to the top of the second slot and the first limiting rod.

7. The self-adhesive label slitting equipment according to claim 6, characterized in that, The mounting ports in the same group are distributed at intervals along the central axis of the outer sleeve, while also surrounding the central axis of the outer sleeve.

8. The self-adhesive label slitting equipment according to claim 7, characterized in that, The inner surface of the outer sleeve is provided with multiple positioning grooves in a ring array. One end of each positioning groove passes through the end of the outer sleeve, while the other end does not pass through. Each positioning groove is connected to one of the mounting ports in the same group.

9. The self-adhesive label slitting equipment according to claim 8, characterized in that, The inner top rod includes an end plate, a second limiting rod, and an insert rod; two second limiting rods are disposed on the surface of the insert rod, the insert rod is inserted into the inside of the outer sleeve, the second limiting rod is engaged in the positioning groove, and is used to abut against the curved surface of the insert block in the mounting port communicating with the positioning groove, and the end plate is disposed at one end of the second limiting rod.

10. A self-adhesive label, processed using the self-adhesive label slitting equipment according to any one of claims 1 to 9, characterized in that, Includes a retaining ring and an adhesive label body wound around the retaining ring.

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