Marking machine

Abstract

A marking machine (10), comprising an unwinding mechanism (100), a winding mechanism (500), and a buffer mechanism (200), a blocking mechanism (300) and a peeling mechanism (400) which are sequentially arranged between the unwinding mechanism (100) and the winding mechanism (500). The buffer mechanism (200) is used for accommodating or releasing a release liner (20), the peeling mechanism (400) is used for separating a label (21) from the release liner (20) and releasing the label (21) to a product, the blocking mechanism (300) can clamp the release liner (20), and the unwinding mechanism (100) releases the release liner (20) with the label (21). The release liner (20) enters the peeling mechanism (400) after passing through the buffer mechanism (200) and the blocking mechanism (300), the peeling mechanism (400) separates the label (21) from the release liner (20), and the release liner (20) having the label (21) peeled is wound by the winding mechanism (500).

Description

Marking machine

[0001] This disclosure claims priority to a Chinese patent application filed with the Patent Office of China on February 20, 2024, with application number 202420313707.7 and application name “Marking Machine,” the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the technical field of product marking, and in particular to a marking machine. Background Art

[0003] During the marking process, the label-bearing backing paper on the relevant marking machine needs to stop after each transport of a certain distance, waiting for the product to be marked. After marking is completed, the backing paper is rewound in the rewinding mechanism. When the rewinding mechanism stops, the unwinding mechanism continues to rotate due to inertia, causing the backing paper to continue to be released. This causes the tension of the backing paper to be unstable, resulting in missing labels during the marking process and preventing high-speed marking. Summary of the Invention

[0004] Based on this, it is necessary to provide a marking machine that can ensure the stability of the tension of the bottom paper, avoid missing labels, and thus achieve high-speed marking in order to solve the problem that the bottom paper in the relevant marking machine is unstable and causes missing labels during the marking process.

[0005] A marking machine, comprising:

[0006] An unwinding mechanism for releasing the backing paper with labels;

[0007] a buffer mechanism, disposed downstream of the unwinding mechanism, for receiving or releasing the bottom paper;

[0008] a peeling mechanism, disposed downstream of the buffer mechanism, for separating the label from the backing paper and releasing the label onto the product;

[0009] a winding mechanism, disposed downstream of the stripping mechanism, for winding the base paper; and

[0010] The blocking mechanism is arranged between the buffer mechanism and the peeling mechanism and can clamp the bottom paper.

[0011] In one embodiment, the unwinding mechanism includes an unwinding shaft and a damper. The unwinding shaft can release the base paper with the label. The damper is connected to the unwinding shaft to provide damping for the rotation of the unwinding shaft.

[0012] In one embodiment, the unwinding mechanism further includes a limiting structure, which is arranged on the unwinding shaft and has a winding space for accommodating the base paper.

[0013] In one embodiment, the buffer mechanism includes a fixed roller and a floating roller, the fixed roller is fixedly arranged, and the floating roller is movably arranged to approach or move away from the fixed roller, and the bottom paper passes around the fixed roller and the floating roller.

[0014] In one embodiment, the cache mechanism further includes an elastic member connected to the floating roller to provide a force to move the floating roller away from the fixed roller.

[0015] In one embodiment, the floating roller is movably arranged along a curved path.

[0016] In one embodiment, the blocking mechanism includes a support roller, a pressing structure and a pressing plate. The support roller is arranged between the cache mechanism and the peeling mechanism, and the base paper is wound around the support roller. The pressing structure is connected to the pressing plate so that the pressing plate is pressed against the base paper on the support roller.

[0017] In one embodiment, the clamping structure includes a rotating drum and a reset assembly. The rotating drum is rotatably arranged, and the pressing plate is connected to the rotating drum to press against the bottom paper on the supporting roller during the rotation of the rotating drum. The reset assembly is connected to the rotating drum to provide a force to press the pressing plate against the bottom paper.

[0018] In one embodiment, the pressing structure further includes an adjusting handle, which is connected to the rotating drum, and the adjusting handle can drive the rotating drum to rotate under the action of an external force, so as to separate the pressing sheet from the supporting roller.

[0019] In one embodiment, the marking machine further includes a label-out detection mechanism, which is arranged corresponding to the peeling mechanism to detect the distance between two adjacent labels.

[0020] In one embodiment, the marking machine further includes a pressure wheel and a mating roller, which are arranged downstream of the peeling mechanism. The mating roller is used for winding the product, and the peeling mechanism can release the label onto the product that has wound around the mating roller. The pressure wheel can press the label onto the product that has wound around the mating roller.

[0021] In one embodiment, the marking machine further includes a missing label detection mechanism, which is arranged corresponding to the matching roller to detect the label on the product.

[0022] In this marking machine, the unwinding mechanism releases the label-bearing backing paper. After passing through a buffering mechanism and a blocking mechanism, the backing paper enters a peeling mechanism, which separates the label from the backing paper without releasing it onto the product for marking. The backing paper, with the label peeled off, is then rewound by a rewinding mechanism. Because the buffering mechanism can accommodate and release the backing paper, and the blocking mechanism can block the tension of the backing paper on both its upstream and downstream sides, this ensures stable backing paper tension, prevents label leaks during marking, and enables high-speed marking. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] FIG1 is a schematic structural diagram of a base paper with a label;

[0025] FIG2 is a schematic structural diagram of a marking machine provided in one embodiment of the present disclosure;

[0026] FIG3 is a schematic structural diagram of the unwinding mechanism in the marking machine shown in FIG2 ;

[0027] FIG4 is a schematic structural diagram of the blocking mechanism in the marking machine shown in FIG2 . DETAILED DESCRIPTION

[0028] To make the above-mentioned objects, features, and advantages of the present disclosure more clearly understood, specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present disclosure. However, the present disclosure can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present disclosure. Therefore, the present disclosure is not limited to the specific embodiments disclosed below.

[0029] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present disclosure.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] In this disclosure, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise expressly limited. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0032] In the present disclosure, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0034] To facilitate understanding of the technical solution of the present disclosure, the base paper 20 processed by the marking machine provided by the present disclosure is described herein with reference to FIG1 : As shown in FIG1 , a plurality of labels 21 are provided on one side of the base paper 20, and the labels 21 are arranged at intervals along the length of the base paper 20. The marking machine is used to separate the labels 21 from the base paper 20 and release them onto the product.

[0035] As shown in FIG. 2 , an embodiment of the present disclosure provides a marking machine 10 , including an unwinding mechanism 100 , a buffering mechanism 200 , a blocking mechanism 300 , a peeling mechanism 400 , and a rewinding mechanism 500 .

[0036] The unwinding mechanism 100 is used to release the base paper 20 with the label 21 , the rewinding mechanism 500 is used to rewind the base paper 20 , and the buffer mechanism 200 , the blocking mechanism 300 and the peeling mechanism 400 are sequentially arranged between the unwinding mechanism 100 and the rewinding mechanism 500 .

[0037] The buffer mechanism 200 is used to accommodate or release the bottom paper 20, that is, when the rewinding mechanism 500 stops rewinding and the unwinding mechanism 100 continues to rotate due to inertia, the buffer mechanism 200 accommodates the bottom paper 20 that the unwinding mechanism 100 continues to release; when the bottom paper 20 in the unwinding mechanism 100 is replaced, or when the rewinding mechanism 500 starts rewinding, the buffer mechanism 200 releases the bottom paper 20 it accommodates, thereby ensuring the stability of the tension of the bottom paper 20.

[0038] It can be understood that the above-mentioned cache mechanism 200 accommodates the bottom paper 20 when the unwinding speed and the rewinding speed are inconsistent, for example, when the rewinding is slow and the unwinding is fast, and releases the accommodated bottom paper 20 when the rewinding is fast and the unwinding is slow, thereby ensuring the stability of the tension of the bottom paper 20.

[0039] The blocking mechanism 300 can clamp the bottom paper 20 to block the tension of the bottom paper 20 on both upstream and downstream sides to a certain extent, thereby further ensuring the stability of the tension of the bottom paper 20 on the downstream side of the blocking mechanism 300 .

[0040] It is understandable that the base paper 20 in the unwinding mechanism 100 , the buffer mechanism 200 and the blocking mechanism 300 all have labels 21 .

[0041] The peeling mechanism 400 is used to separate the label 21 from the base paper 20 and release the label 21 onto the product to achieve labeling of the product.

[0042] In the aforementioned marking machine, the unwinding mechanism 100 releases the backing paper 20 with the label 21. After passing through the buffer mechanism 200 and the blocking mechanism 300, the backing paper 20 enters the peeling mechanism 400. The peeling mechanism 400 separates the label 21 from the backing paper 20 without releasing the label 21 onto the product for marking. Subsequently, the backing paper 20, with the label 21 peeled off, is rewound by the rewinding mechanism 500. Because the buffer mechanism 200 can accommodate or release the backing paper 20, and the blocking mechanism 300 can block the tension of the backing paper 20 on both its upstream and downstream sides, this ensures the stability of the tension of the backing paper 20, prevents label omissions during the marking process, and enables high-speed marking.

[0043] It should be noted that the above-mentioned mechanism can be placed independently or arranged using a large plate 600. The following description will be made using the large plate 600 as an example.

[0044] Referring also to Figure 3 , in one embodiment, the unwinding mechanism 100 includes an unwinding shaft and a damper 110. The unwinding shaft is capable of releasing the backing paper 20 bearing the label 21. The damper 110 is connected to the unwinding shaft to provide damping to the unwinding shaft's rotation, thereby ensuring a more stable release of the backing paper 20. Furthermore, when the rewinding mechanism 500 stops rewinding and the unwinding shaft continues to rotate due to inertia, the unwinding shaft's rotation is reduced, thereby reducing the amount of backing paper 20 released during this process. This ensures that the buffer mechanism 200 can accommodate the released backing paper 20 and maintains the stability of the tension of the backing paper 20.

[0045] It needs to be explained that in order to ensure the compactness of the structure, the cache mechanism 200 has certain restrictions on the storage capacity of the base paper 20. If too much base paper 20 is released by the unwinding shaft when the reeling mechanism 500 stops rewinding, exceeding the storage capacity of the cache mechanism 200, the cache mechanism 200 will lose its caching function. Therefore, a damper 110 is set in the unwinding mechanism 100 to reduce the base paper 20 released by the unwinding shaft when the reeling mechanism 500 stops rewinding, thereby ensuring the normal operation of the caching function of the cache mechanism 200.

[0046] Optionally, the damper 110 may be in the form of an adjustable magnetic force, so that the damping of the damper 110 can be adjusted according to demand.

[0047] Furthermore, the unwinding mechanism 100 further includes a limiting structure 120 . The limiting structure 120 is disposed on the unwinding shaft and has a winding space 121 for accommodating the base paper 20 .

[0048] In one embodiment, the limiting structure 120 includes a first limiting plate 122, a reel 123 and a second limiting plate 124 which are sleeved on the unwinding shaft. The first limiting plate 122 and the second limiting plate 124 are arranged at intervals along the axial direction of the unwinding shaft. The reel 123 is connected between the first limiting plate 122 and the second limiting plate 124 to enclose the first limiting plate 122 and the second limiting plate 124 to form the above-mentioned winding space 121.

[0049] Furthermore, the first limiting plate 122 is located on the outside, and the second limiting plate 124 is located on the inside near the damper 110. The unwinding mechanism 100 also includes a self-locking structure 130, which is connected to the end of the unwinding shaft and is located on the outside of the first limiting plate 122 to prevent the limiting structure 120 from detaching from the unwinding shaft and preventing the limiting structure 120 from shaking.

[0050] It is understandable that a limiting portion is further provided on the unwinding shaft, which abuts against the side of the second limiting plate 124 away from the first limiting plate 122 , thereby cooperating with the self-locking structure 130 to fix the limiting structure 120 .

[0051] Optionally, the self-locking structure 130 is a double-layer nut structure, i.e., two stacked nuts are threadedly connected to the end of the unwinding shaft and abut against the first limiting plate 122. In this way, the double-layer nut structure can effectively prevent loosening, thereby further preventing the limiting structure 120 from shaking and preventing the limiting structure 120 from separating from the unwinding shaft.

[0052] In one embodiment, the buffer mechanism 200 includes a fixed roller 210 and a floating roller 220, around which the bottom paper 20 passes. The fixed roller 210 is fixed, and the floating roller 220 is movable to move away from or closer to the fixed roller 210, thereby accommodating or releasing the bottom paper 20.

[0053] It can be understood that, since the bottom paper 20 passes through the fixed roller 210 and the floating roller 220, when the floating roller 220 moves away from the fixed roller 210, the length of the bottom paper 20 between the fixed roller 210 and the floating roller 220 will increase to accommodate the bottom paper 20; conversely, the length of the bottom paper 20 between the fixed roller 210 and the floating roller 220 will decrease to release the bottom paper 20.

[0054] In addition, in the above-mentioned case, the bottom paper 20 may be sequentially wound around the fixed roller 210 and the floating roller 220, or sequentially wound around the floating roller 220 and the fixed roller 210, without limitation. The following description will take the case where the bottom paper 20 is sequentially wound around the fixed roller 210 and the floating roller 220 as an example.

[0055] In one embodiment, the buffer mechanism 200 further includes an elastic member connected to the floating roller 220 to provide a force that forces the floating roller 220 away from the fixed roller 210. Thus, when the tension of the bottom paper 20 remains stable, the force exerted by the bottom paper 20 on the floating roller 220 and the force exerted by the elastic member on the floating roller 220 are opposite to each other, thereby keeping the floating roller 220 fixed relative to the fixed roller 210. When the tension of the bottom paper 20 increases (when the rewinding mechanism 500 starts rewinding or the unwinding mechanism 100 replaces the bottom paper 20), the bottom paper 20 drives the floating roller 220 toward the fixed roller 210, overcoming the force of the elastic member, thereby releasing the bottom paper 20. When the tension of the bottom paper 20 decreases (when the rewinding mechanism 500 stops rewinding and the unwinding mechanism 100 continues to release the bottom paper 20 due to inertia), the floating roller 220 is moved away from the fixed roller 210 under the action of the elastic member, thereby accommodating the bottom paper 20.

[0056] Optionally, the elastic member is a spring.

[0057] Of course, in other embodiments, the floating roller 220 can be reciprocatingly movable in the vertical direction, and the fixed roller 210 is located above the floating roller 220. In this way, the floating roller 220 can be moved away from the fixed roller 210 under the action of gravity, and can be moved closer to the fixed roller 210 under the action of the tension of the bottom paper 20, thereby accommodating or releasing the bottom paper 20.

[0058] In one embodiment, the floating roller 220 is arranged to move along a curved path, so that during the movement of the floating roller 220, the distance between the floating roller 220 and the fixed roller 210 changes more gently, thereby enabling the cache mechanism 200 to more gently accommodate or release the bottom paper 20, further avoiding tension fluctuations in the bottom paper 20.

[0059] It is understandable that the floating roller 220 moves along a curved path. An arc groove 610 may be opened on the large plate 600, and the floating roller 220 moves back and forth along the arc groove 610, and the elastic member is connected between the large plate 600 and the floating roller 220; other methods may also be used, which are not limited here.

[0060] Referring to Figures 2 and 4 , in one embodiment, the blocking mechanism 300 includes a support roller 310, a pressing structure, and a pressing plate 320. The support roller 310 is disposed between the buffer mechanism 200 and the peeling mechanism 400, and the base paper 20 is wound around the support roller 310. The pressing structure is connected to the pressing plate 320, so that the pressing plate 320 presses against the base paper 20 on the support roller 310, thereby cooperating with the support roller 310 to clamp the base paper 20. This, to a certain extent, isolates the tension of the base paper 20 on the upstream and downstream sides of the blocking mechanism 300, thereby preventing tension fluctuations on the upstream side from affecting the tension on the downstream side, ensuring the stability of the tension of the base paper 20 at the peeling mechanism 400, and allowing the peeling mechanism 400 to stably release the label 21 onto the product.

[0061] In one embodiment, the pressing structure includes a rotating drum 330 and a reset assembly. The rotating drum 330 is rotatably mounted on the large plate 600. The pressing plate 320 is connected to the rotating drum 330 so as to press against the bottom paper 20 on the support roller 310 as the rotating drum 330 rotates. The reset assembly is connected to the rotating drum 330 to provide a force that presses the pressing plate 320 against the bottom paper 20. Furthermore, when the bottom paper 20 needs to be replaced, an external force can be applied to the pressing plate 320, causing it to rotate against the force of the reset assembly until the pressing plate 320 is separated from the support roller 310.

[0062] Optionally, the reset component is an elastic component, which may be connected to the rotating drum 330 via a tension spring, or may adopt other elastic structures, which is not limited here.

[0063] Furthermore, the pressing structure includes an adjustment handle 340, which is connected to the rotating drum 330. The adjustment handle 340 can drive the rotating drum 330 to rotate under the action of an external force to separate the pressing plate 320 from the support roller 310. Similarly, after the external force applied to the adjustment handle 340 is removed, the rotating drum 330, under the action of the reset assembly, drives the pressing plate 320 to rotate until it presses against the base paper 20 on the support roller 310.

[0064] As shown in Figure 4, the reset assembly can provide a clockwise rotation force to the drum 330, causing the pressing plate 320 to press the bottom paper 20 against the support roller 310. At the same time, the handle 340 can be adjusted to drive the drum 330 to rotate counterclockwise to overcome the force of the reset assembly, thereby releasing the bottom paper 20.

[0065] In one embodiment, the marking machine also includes a label detection mechanism 700, which is arranged corresponding to the peeling mechanism 400 to detect the distance between two adjacent labels 21, thereby facilitating the adjustment of the conveying speed of the base paper 20 according to the distance between the labels 21, and ensuring that the labels 21 are released to the correct position on the product.

[0066] It should be noted that after the peeling mechanism 400 separates the label 21 from the backing paper 20, the backing paper 20 and label 21 are transported for a distance within the peeling mechanism 400. The backing paper 20 is then transported to the downstream rewinding mechanism 500, and the label 21 is released onto the product. The label detection mechanism 700 can be located at the front end of the peeling mechanism 400 to detect the distance between two adjacent labels 21.

[0067] In one embodiment, the marking machine also includes a pressure wheel 810 and a mating roller 820, which are arranged downstream of the peeling mechanism 400. The mating roller 820 is used for winding the product. The peeling mechanism 400 can release the label 21 onto the product wound around the mating roller 820, and the pressure wheel 810 can press the label 21 onto the product of the mating roller 820.

[0068] Specifically in the embodiment shown in FIG. 2 , the marking machine further includes a pressing mechanism 830 , and the pressing wheel 810 is rotatably connected to the pressing mechanism 830 so as to be pressed against the mating roller 820 under the action of the pressing mechanism 830 , thereby ensuring that the label 21 is pressed tightly onto the product.

[0069] In one embodiment, the marking machine further includes a missing label detection mechanism 900, which is provided in correspondence with the mating roller 820 to detect the label 21 on the product. In this way, the presence of the label 21 on the product can be detected. If the label 21 is detected, it indicates that the marking was successful; otherwise, it indicates that the label was not successfully placed and the marking failed.

[0070] In order to facilitate understanding of the technical solution of the present disclosure, the marking process of the marking machine in the above embodiment is described here with reference to FIG2 :

[0071] The unwinding mechanism 100 releases the backing paper 20 with the label 21. The backing paper 20 then winds around the fixed roller 210 and floating roller 220 downstream of the unwinding mechanism 100, and then around the support roller 310. The pressing sheet 320 presses against the backing paper 20 on the support roller 310. The backing paper 20 then enters the peeling mechanism 400, where the label 21 is separated from the backing paper 20. The peeling mechanism 400 releases the label 21 onto the product that has been wound around the mating roller 820. The pressing roller 810 then presses the label 21 against the product. After winding around the rollers, the backing paper 20 is then conveyed to the rewinding mechanism 500.

[0072] When the rewinding mechanism 500 stops rewinding, the unwinding shaft continues to rotate due to inertia, the tension of the bottom paper 20 decreases, and the floating roller 220 moves away from the fixed roller 210 under the action of the elastic member, thereby accommodating the bottom paper 20 released by the unwinding mechanism 100; when the rewinding mechanism 500 starts rewinding, the tension of the bottom paper 20 increases, and the floating roller 220 overcomes the force of the elastic member and moves closer to the fixed roller 210, thereby releasing the bottom paper 20.

[0073] It should be noted that the winding mechanism 500 is controlled by a servo motor and winds the base paper 20 at equal intervals, that is, it pauses after winding for a period of time and then continues to wind the base paper 20 of the same length after a period of time.

[0074] In addition, when using the above-mentioned marking machine to mark defective products in the electrode, the marking speed can reach 17 per second, and the marking is stable.

[0075] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0076] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the patent disclosed herein shall be determined by the appended claims.

Claims

1. A marking machine, characterized in that: include: An unwinding mechanism for releasing the backing paper with labels; a buffer mechanism, disposed downstream of the unwinding mechanism, for receiving or releasing the bottom paper; a peeling mechanism, disposed downstream of the buffer mechanism, for separating the label from the backing paper and releasing the label onto the product; a winding mechanism, disposed downstream of the stripping mechanism, for winding the base paper; and The blocking mechanism is arranged between the buffer mechanism and the peeling mechanism and can clamp the bottom paper.

2. The marking machine according to claim 1, characterized in that: The unwinding mechanism includes an unwinding shaft and a damper. The unwinding shaft can release the base paper with the label. The damper is connected to the unwinding shaft to provide damping for the rotation of the unwinding shaft.

3. The marking machine according to claim 2, characterized in that: The unwinding mechanism further includes a limiting structure, which is arranged on the unwinding shaft and has a winding space for accommodating the base paper.

4. The marking machine according to any one of claims 1 to 3, characterized in that: The buffer mechanism includes a fixed roller and a floating roller. The fixed roller is fixedly arranged, and the floating roller is movably arranged to approach or move away from the fixed roller. The bottom paper passes through the fixed roller and the floating roller.

5. The marking machine according to claim 4, characterized in that: The buffer mechanism further includes an elastic member connected to the floating roller to provide a force to move the floating roller away from the fixed roller.

6. The marking machine according to claim 4, characterized in that: The floating roller is movably arranged along a curved path.

7. The marking machine according to any one of claims 1 to 3, characterized in that: The blocking mechanism includes a support roller, a pressing structure and a pressing plate. The support roller is arranged between the cache mechanism and the peeling mechanism. The base paper is wound around the support roller. The pressing structure is connected to the pressing plate so that the pressing plate is pressed against the base paper on the support roller.

8. The marking machine according to claim 7, characterized in that: The clamping structure includes a rotating drum and a reset assembly. The rotating drum is rotatably arranged. The pressing plate is connected to the rotating drum to press against the bottom paper on the supporting roller during the rotation of the rotating drum. The reset assembly is connected to the rotating drum to provide a force that presses the pressing plate against the bottom paper.

9. The marking machine according to claim 8, characterized in that: The pressing structure further includes an adjusting handle, which is connected to the rotating drum. The adjusting handle can drive the rotating drum to rotate under the action of an external force, so as to separate the pressing sheet from the supporting roller.

10. The marking machine according to any one of claims 1 to 9, characterized in that: The marking machine further comprises a label-out detection mechanism, which is arranged corresponding to the peeling mechanism to detect the distance between two adjacent labels.

11. The marking machine according to any one of claims 1 to 9, characterized in that: The labeling machine also includes a pressure wheel and a mating roller, which are arranged downstream of the peeling mechanism. The mating roller is used for winding the product, and the peeling mechanism can release the label onto the product that has wound around the mating roller. The pressure wheel can press the label onto the product that has wound around the mating roller.

12. The marking machine according to claim 11, characterized in that: The marking machine further comprises a label missing detection mechanism, which is arranged corresponding to the matching roller to detect the label on the product.

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