Marking machine

Abstract

The utility model relates to a marking machine which comprises an unwinding mechanism, a winding mechanism, a buffering mechanism, a blocking mechanism and a stripping mechanism. The buffering mechanism, the blocking mechanism and the stripping mechanism are sequentially arranged between the unwinding mechanism and the winding mechanism. The caching mechanism is used for accommodating or releasing backing paper; the stripping mechanism is used for separating the label from the backing paper and releasing the label to the product; and the blocking mechanism can clamp the backing paper. By the adoption of the marking machine, the unwinding mechanism releases the backing paper with the label, the backing paper enters the stripping mechanism after winding through the buffering mechanism and the blocking mechanism, the stripping mechanism separates the label from the backing paper, and the label is not released to a product so that marking can be conducted. And then, the bottom paper with the stripped label is wound through a winding mechanism. The buffering mechanism can accommodate or release the backing paper, and the blocking mechanism can block the tension of the backing paper on the upstream side and the downstream side, so that the tension stability of the backing paper is ensured, the marking missing condition in the marking process is avoided, and high-speed marking is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of product marking, in particular to a marking machine. Background Art

[0002] In the existing marking machine, the base paper with labels needs to stop after being transported for a certain distance, waiting for the product to be marked. After marking, the base paper is rolled up in the winding mechanism. When the winding mechanism stops, the unwinding mechanism continues to rotate due to inertia, resulting in the continued release of the base paper, making the tension of the base paper unstable, resulting in the problem of missing labels during the marking process, and high-speed marking cannot be achieved. Utility Model Content

[0003] 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 existing marking machine is unstable, resulting in missing labels during the marking process.

[0004] A marking machine, comprising:

[0005] An unwinding mechanism for releasing the base paper with labels;

[0006] A buffer mechanism, disposed downstream of the unwinding mechanism, for receiving or releasing the base paper;

[0007] a peeling mechanism, disposed downstream of the buffer mechanism, for separating the label from the base paper and releasing the label onto the product;

[0008] A winding mechanism, disposed downstream of the stripping mechanism, for winding the base paper; and

[0009] The blocking mechanism is arranged between the buffer mechanism and the peeling mechanism and can clamp the bottom paper.

[0010] In one embodiment, the unwinding mechanism includes an unwinding shaft and a damper, wherein the unwinding shaft can release the base paper with the label, and the damper is connected to the unwinding shaft to provide damping for the rotation of the unwinding shaft.

[0011] In one of the embodiments, the unwinding mechanism further includes a limiting structure, which is disposed on the unwinding shaft and has a winding space for accommodating the base paper.

[0012] 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.

[0013] In one embodiment, the cache mechanism further includes an elastic member, wherein the elastic member is connected to the floating roller to provide a force to move the floating roller away from the fixed roller.

[0014] In one of the embodiments, the floating roller is movably arranged along a curved path.

[0015] In one of the embodiments, the blocking mechanism includes a support roller, a clamping 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, and the clamping structure is connected to the pressing plate so that the pressing plate is pressed against the base paper on the support roller.

[0016] 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.

[0017] In one of the embodiments, the clamping 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.

[0018] In one of the embodiments, the marking machine further includes a label-out detection mechanism, and the label-out detection mechanism is arranged corresponding to the peeling mechanism to detect the distance between two adjacent labels.

[0019] In one embodiment, the marking machine also includes a pressure wheel and a mating roller, and the pressure wheel and the mating roller 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 wound around the mating roller, and the pressure wheel can press the label onto the product wound around the mating roller.

[0020] In one of the embodiments, the marking machine further includes a missing label detection mechanism, and the missing label detection mechanism is arranged corresponding to the matching roller to detect the label on the product.

[0021] With the above-mentioned marking machine, the unwinding mechanism releases the base paper with the label, and the base paper enters the peeling mechanism after passing through the buffer mechanism and the blocking mechanism. The peeling mechanism separates the label from the base paper and does not release the label onto the product for marking. Subsequently, the base paper with the peeled label is reeled in by the rewinding mechanism. Since the buffer mechanism can accommodate or release the base paper, the blocking mechanism can block the tension of the base paper on both the upstream and downstream sides, thereby ensuring the stability of the base paper tension, avoiding the situation of missing labels during the marking process, and achieving high-speed marking. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the base paper with a label;

[0024] Figure 2 A schematic diagram of the structure of a marking machine provided in one embodiment of the present application;

[0025] Figure 3 for Figure 2 The structural schematic diagram of the unwinding mechanism in the marking machine shown;

[0026] Figure 4 for Figure 2 The schematic diagram of the structure of the blocking mechanism in the marking machine is shown. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, 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 application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature 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. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] 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 a central 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 a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0033] In order to facilitate understanding of the technical solution of this application, Figure 1 The base paper 20 processed by the marking machine provided in this application is described as follows: Figure 1 As shown, a plurality of labels 21 are provided on one side surface of the base paper 20, and the plurality of labels 21 are arranged at intervals along the length direction of the base paper 20. The labeling machine is used to separate the labels 21 from the base paper 20 and release them on the product.

[0034] like Figure 2 As shown, an embodiment of the present application 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 .

[0035] 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 .

[0036] The buffer mechanism 200 is used to receive or release the bottom paper 20, that is, when the reeling mechanism 500 stops reeling and the unreeling mechanism 100 continues to rotate due to inertia, the buffer mechanism 200 receives the bottom paper 20 that the unreeling mechanism 100 continues to release; when the bottom paper 20 in the unreeling mechanism 100 is replaced, or the reeling mechanism 500 starts reeling, the buffer mechanism 200 releases the bottom paper 20 it receives, thereby ensuring the stability of the tension of the bottom paper 20.

[0037] It is understandable 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 when the rewinding is fast and the unwinding is slow, it releases the accommodated bottom paper 20, thereby ensuring the stability of the tension of the bottom paper 20.

[0038] The blocking mechanism 300 can clamp the bottom paper 20 to block the tension of the bottom paper 20 on both the upstream and downstream sides thereof 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 .

[0039] It is understandable that the base paper 20 in the unwinding mechanism 100 , the buffer mechanism 200 and the blocking mechanism 300 are all provided with labels 21 .

[0040] 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.

[0041] With the above-mentioned marking machine, the unwinding mechanism 100 releases the base paper 20 with the label 21, and the base paper 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 base paper 20, but does not release the label 21 onto the product for marking. Subsequently, the base paper 20 with the label 21 peeled off is reeled up by the rewinding mechanism 500. Since the buffer mechanism 200 can accommodate or release the base paper 20, the blocking mechanism 300 can block the tension of the base paper 20 on both the upstream and downstream sides thereof, thereby ensuring the stability of the tension of the base paper 20, avoiding the situation of missing labels during the marking process, and achieving high-speed marking.

[0042] 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.

[0043] Please also see Figure 3In one embodiment, the unwinding mechanism 100 includes an unwinding shaft and a damper 110. The unwinding shaft can release the base paper 20 with the label 21, and the damper 110 is connected to the unwinding shaft to provide damping for the rotation of the unwinding shaft, so that the release of the base paper 20 is more stable. At the same time, when the rewinding mechanism 500 stops rewinding and the unwinding shaft continues to rotate due to inertia, the rotation amount of the unwinding shaft is reduced, thereby reducing the release amount of the base paper 20 in the process, ensuring that the buffer mechanism 200 can accommodate the released base paper 20 and ensure the stability of the tension of the base paper 20.

[0044] 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 provided in the unwinding mechanism 100 to reduce the base paper 20 released by the unwinding shaft when the rewinding mechanism 500 stops rewinding, thereby ensuring the normal operation of the caching function of the cache mechanism 200.

[0045] Optionally, the damper 110 may be in the form of an adjustable magnetic force, so that the damping of the damper 110 may be adjusted according to demand.

[0046] Furthermore, the unwinding mechanism 100 further includes a limiting structure 120 , which is disposed on the unwinding shaft and has a winding space 121 for accommodating the base paper 20 .

[0047] 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.

[0048] 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 being separated from the unwinding shaft and to prevent the limiting structure 120 from shaking.

[0049] It is understandable that a limiting portion is further provided on the unwinding shaft, and the limiting portion abuts against a 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 .

[0050] Optionally, the self-locking structure 130 is a double-layer nut structure, that is, 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 detaching from the unwinding shaft.

[0051] In one embodiment, the buffer mechanism 200 includes a fixed roller 210 and a floating roller 220, and the bottom paper 20 passes through the fixed roller 210 and the floating roller 220. The fixed roller 210 is fixedly arranged, and the floating roller 220 is movably arranged to move away from or close to the fixed roller 210, thereby accommodating or releasing the bottom paper 20.

[0052] 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.

[0053] In addition, in the above case, the bottom paper 20 may be wound around the fixed roller 210 and the floating roller 220 in sequence, or may be wound around the floating roller 220 and the fixed roller 210 in sequence, which is not limited here. The following description will be made by taking the bottom paper 20 being wound around the fixed roller 210 and the floating roller 220 in sequence as an example.

[0054] In one embodiment, the buffer mechanism 200 further includes an elastic member, which is connected to the floating roller 220 to provide a force to move the floating roller 220 away from the fixed roller 210. In this way, when the tension of the bottom paper 20 remains stable, the force of the bottom paper 20 on the floating roller 220 and the force of the elastic member on the floating roller 220 are opposite to each other, so that the floating roller 220 can be fixed relative to the fixed roller 210; when the tension of the bottom paper 20 increases (the rewinding mechanism 500 starts to rewind or the unwinding mechanism 100 replaces the bottom paper 20), the bottom paper 20 drives the floating roller 220 to overcome the force of the elastic member and move toward the fixed roller 210, thereby releasing the bottom paper 20; when the tension of the bottom paper 20 decreases (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 moves away from the fixed roller 210 under the action of the elastic member, thereby accommodating the bottom paper 20.

[0055] Optionally, the elastic member is a spring.

[0056] 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 away from the fixed roller 210 under the action of gravity, and can be close to the fixed roller 210 under the action of the tension of the bottom paper 20, so as to achieve the storage or release of the bottom paper 20.

[0057] 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 of the bottom paper 20.

[0058] It is understandable that the floating roller 220 moves along a curved path. An arc groove 610 may be provided on the large plate 600, and the floating roller 220 reciprocates along the arc groove 610, and an elastic member is connected between the large plate 600 and the floating roller 220; other methods may also be adopted, which are not limited here.

[0059] See also Figure 2 and Figure 4 In one embodiment, the blocking mechanism 300 includes a support roller 310, a pressing structure and a pressing sheet 320. The support roller 310 is disposed between the buffer mechanism 200 and the peeling mechanism 400, and the bottom paper 20 is wound around the support roller 310; the pressing structure is connected to the pressing sheet 320, so that the pressing sheet 320 presses against the bottom paper 20 on the support roller 310, thereby cooperating with the support roller 310 to clamp the bottom paper 20, isolating the tension of the bottom paper 20 on both sides of the upstream and downstream of the blocking mechanism 300 to a certain extent, thereby preventing the tension fluctuation on the upstream side from affecting the tension on the downstream side, ensuring the stability of the tension of the bottom paper 20 at the peeling mechanism 400, and allowing the peeling mechanism 400 to stably release the label 21 onto the product.

[0060] In one embodiment, the pressing structure includes a rotating drum 330 and a reset assembly, wherein the rotating drum 330 is rotatably disposed on the large plate 600, the pressing sheet 320 is connected to the rotating drum 330 so as to press against the bottom paper 20 on the supporting roller 310 during the rotation of the rotating drum 330, and the reset assembly is connected to the rotating drum 330 so as to provide a force for pressing the pressing sheet 320 against the bottom paper 20. Meanwhile, when the bottom paper 20 needs to be replaced, an external force can be applied to the pressing sheet 320 so that the pressing sheet 320 overcomes the force of the reset assembly and rotates until the pressing sheet 320 is separated from the supporting roller 310.

[0061] 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.

[0062] Furthermore, the pressing structure further includes an adjusting handle 340, which is connected to the rotating drum 330, and the adjusting handle 340 can drive the rotating drum 330 to rotate under the action of an external force, so as to separate the pressing sheet 320 from the supporting roller 310. Similarly, after the external force applied to the adjusting handle 340 is removed, the rotating drum 330 drives the pressing sheet 320 to rotate to press the bottom paper 20 on the supporting roller 310 under the action of the reset assembly.

[0063] like Figure 4 As shown, the reset assembly can provide a clockwise rotation force to the drum 330, so that the pressing sheet 320 presses the bottom paper 20 against the supporting 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.

[0064] 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, so as to facilitate adjusting the conveying speed of the base paper 20 according to the distance between the labels 21, and ensure that the labels 21 are released to the correct position on the product.

[0065] It should be noted that after the peeling mechanism 400 separates the label 21 from the base paper 20, the base paper 20 and the label 21 are further transported for a distance in the peeling mechanism 400, and then the base paper 20 is transported to the downstream winding mechanism 500, and the label 21 is released onto the product. The label detection mechanism 700 may be located at the front end of the corresponding peeling mechanism 400 to detect the distance between two adjacent labels 21.

[0066] 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.

[0067] Specific to Figure 2 In the illustrated embodiment, the marking machine further comprises a pressing mechanism 830 , and the pressing wheel 810 is rotatably connected to the pressing mechanism 830 , so as to be pressed against the matching roller 820 under the action of the pressing mechanism 830 , thereby ensuring that the label 21 is pressed onto the product.

[0068] In one embodiment, the marking machine further includes a missing label detection mechanism 900, which is arranged corresponding to the matching roller 820 to detect the label 21 on the product. In this way, it can be detected whether there is a label 21 on the product. If the label 21 is detected, it means that the marking is successful, otherwise it means that the label is not successfully issued and the marking fails.

[0069] In order to facilitate understanding of the technical solution of this application, Figure 2 The marking process of the marking machine in the above embodiment is described as follows:

[0070] The unwinding mechanism 100 releases the base paper 20 with the label 21, and the base paper 20 is wound around the fixed roller 210 and the floating roller 220 downstream of the unwinding mechanism 100 in sequence, and then around the support roller 310, and the pressing sheet 320 presses the base paper 20 on the support roller 310. Next, the base paper 20 enters the peeling mechanism 400, and under the action of the peeling mechanism 400, the label 21 is separated from the base paper 20, and the peeling mechanism 400 releases the label 21 onto the product wound around the matching roller 820, and then the label 21 is pressed onto the product through the pressing wheel 810, and the base paper 20 is transported to the winding mechanism 500 after winding around the roller.

[0071] When the reeling mechanism 500 stops reeling, the unreeling shaft continues to rotate under the action of 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 unreeling mechanism 100; when the reeling mechanism 500 starts reeling, the tension of the bottom paper 20 increases, and the floating roller 220 overcomes the force of the elastic member and moves close to the fixed roller 210, thereby releasing the bottom paper 20.

[0072] It should be noted that the winding mechanism 500 is controlled by a servo motor to equidistantly wind the base paper 20 , 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.

[0073] 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.

[0074] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0075] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A marking machine, characterized in that: include: An unwinding mechanism for releasing the base paper with labels; A buffer mechanism, disposed downstream of the unwinding mechanism, for receiving or releasing the base paper; a peeling mechanism, disposed downstream of the buffer mechanism, for separating the label from the base 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 comprises an unwinding shaft and a damper. The unwinding shaft can release the base paper with labels. 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 comprises 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 claim 1, characterized in that: The buffer mechanism comprises a fixed roller and a floating roller. The fixed roller is fixedly arranged, and the floating roller is movably arranged to be close to or away from the fixed roller. The bottom paper passes around the fixed roller and the floating roller.

5. The marking machine according to claim 4, characterized in that: The cache mechanism further comprises an elastic member, wherein the elastic member is connected to the floating roller to provide a force for moving 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 claim 1, characterized in that: The blocking mechanism includes a supporting roller, a clamping structure and a pressing plate. The supporting roller is arranged between the buffer mechanism and the peeling mechanism. The base paper is wound around the supporting roller. The clamping structure is connected to the pressing plate so that the pressing plate is pressed against the base paper on the supporting 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 so as 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 so as to provide a force for pressing the pressing plate against the bottom paper.

9. The marking machine according to claim 8, characterized in that: The clamping structure further includes an adjusting handle, which is connected to the rotating drum and 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 stripping 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 matching roller, which are arranged downstream of the peeling mechanism. The matching roller is used for winding the product, and the peeling mechanism can release the label onto the product winding around the matching roller. The pressure wheel can press the label onto the product winding around the matching roller.

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

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