Caching mechanism, label feeding device and labeling system

Abstract

The invention relates to a temporary storage mechanism, a label feeding device and a labeling system. The temporary storage mechanism comprises a supporting base, a plurality of first guide rollers, a sliding base, a plurality of second guide rollers and an elastic piece. All the first guide rollers are fixedly arranged on the supporting base. The sliding seat is slidably arranged on the supporting seat. And the plurality of second guide rollers are connected with the sliding seat. The elastic piece is connected between the sliding seat and the supporting seat. According to the caching mechanism, the label feeding device and the labeling system, due to the fact that the number of the first guide rollers and the number of the second guide rollers are more than one, backing paper is wound around the caching mechanism in an S shape, the overall size is small, the caching amount is large, the caching requirement of the labeling device can be met, continuous non-stop work can be achieved, and the working efficiency is improved; and on the other hand, the sliding seat drives the second guide rollers to move synchronously when sliding along the supporting seat, so that the situation that the buffering amount is reduced due to the fact that the single second guide roller moves to the limiting position due to overlarge tension at the label discharging mechanism is avoided, and the operation stability is better.

Description

Technical Field

[0001] This application relates to the field of labeling technology, and in particular to a buffer mechanism, a label feeding device, and a labeling system. Background Technology

[0002] To reflect product brand attributes or to display essential information such as production date, ingredients, and manufacturer on the product exterior, products undergo labeling before leaving the factory. Specifically, labels with printed images or text are affixed to designated locations on the product surface; this labeling process is typically completed using a labeling system.

[0003] In this technology, multiple labels are sequentially adhered to a base paper. During use, the base paper, supported by a traction rod, moves the labels to the labeling position. At the labeling position, the labels are individually peeled from the base paper and affixed to the product surface by a labeling mechanism.

[0004] However, when the quality of the label paper is found to be substandard, the printing speed needs to be slowed down or even the machine needs to be stopped for maintenance to remove the substandard labels (i.e., defective labels). Similarly, if a product is missed at one or more stations of the feeding mechanism, the printing speed needs to be slowed down or the machine needs to be stopped. When the printing mechanism malfunctions, the labeling speed needs to be slowed down or the machine needs to be stopped for maintenance. Consequently, the labeling efficiency of the labeling device in this technology is relatively low. Summary of the Invention

[0005] Therefore, it is necessary to address the shortcomings of existing technologies by providing a buffer mechanism, label feeding device, and labeling system that can improve work efficiency and have high operational stability.

[0006] On the one hand, this application provides a caching mechanism, the caching mechanism comprising:

[0007] Support base;

[0008] Multiple first guide rods, all of which are fixedly mounted on the support base;

[0009] A sliding seat, which is slidably disposed on the support seat;

[0010] Multiple second guide rollers, each of which is connected to the sliding seat; and

[0011] An elastic element is connected between the sliding seat and the support seat.

[0012] In one embodiment, the buffer mechanism further includes a guide component mounted on the support base, and the sliding base is connected to the guide component.

[0013] In one embodiment, the guiding component includes a guide rail; the guide rail is connected to the support base, and the sliding base is slidably engaged with the guide rail.

[0014] In one embodiment, the guiding assembly further includes a guide rod connected to the support base, the guiding direction of the guide rod being parallel to the extension direction of the guide rail, the sliding base also being slidably engaged with the guide rod, and the elastic element being a spring sleeved on the outside of the guide rod.

[0015] In one embodiment, the bottom end of the second guide roller is connected to the sliding seat, and at least one of the top outer walls of the second guide roller is provided with a limiting part, which is used to abut and limit the bottom paper along the axial direction of the second guide roller.

[0016] In one embodiment, the outer diameter of the second guide rod is 30 mm to 50 mm.

[0017] In one embodiment, the support base includes a base body and a cover plate; the base body is provided with an installation groove, the sliding seat is disposed in the installation groove, the cover plate is connected to the base body and disposed at the opening of the installation groove, the cover plate is provided with a sliding groove corresponding to the second guide rod, the second guide rod passes through the sliding groove and extends into the installation groove to connect with the sliding seat.

[0018] On the other hand, this application also provides a label feeding device, which includes a first driving mechanism, a printing mechanism and the buffer mechanism; the printing mechanism, the first driving mechanism and the buffer mechanism are arranged sequentially along the movement direction of the base paper; the printing mechanism is used to print labels on the base paper, and the first driving mechanism is used to drive the base paper so that the base paper enters the buffer mechanism.

[0019] In one embodiment, the label feeding device further includes a damping roller; the damping roller is disposed between the buffer mechanism and the label dispensing mechanism, and the bottom paper at the outlet of the buffer mechanism is transmitted to the label dispensing mechanism via the damping roller.

[0020] On the other hand, this application also provides a labeling system, including a label dispensing mechanism, a second driving mechanism, and the label feeding device; the printing mechanism, the first driving mechanism, the buffer mechanism, the label dispensing mechanism, and the second driving mechanism are arranged sequentially along the movement direction of the base paper.

[0021] In one embodiment, the labeling system further includes a controller, and the buffer mechanism further includes a first sensor, a second sensor, and a third sensor; the first driving mechanism, the second driving mechanism, the first sensor, the second sensor, and the third sensor are all electrically connected to the controller; the first sensor, the second sensor, and the third sensor are sequentially and spaced apart from each other along the sliding direction of the sliding seat, the first sensor, the second sensor, and the third sensor are used to sense the sliding seat, and the controller is used to control the first driving mechanism and the second driving mechanism to work according to the sensing signals of the first sensor, the second sensor, and the third sensor.

[0022] In the aforementioned buffer mechanism, label feeding device, and labeling system, the base paper alternately passes through the first guide roller and the second guide roller in sequence, with the first and second guide rollers serving to guide the base paper. Since each of the first guide rollers is fixed to the support base, the movement of the sliding seat along the support base drives the synchronous movement of each of the second guide rollers, and the elastic element adaptably deforms or elastically returns to its original position. Therefore, on the one hand, because there are more than one first and second guide roller, the base paper is arranged in an S-shape around the buffer mechanism, resulting in a small overall size and a large buffer capacity, meeting the buffering requirements of the labeling device. Furthermore, when placed between the printing mechanism and the label dispensing mechanism, continuous operation without stopping is achieved, improving work efficiency. On the other hand, the synchronous movement of the second guide rollers as the sliding seat slides along the support base prevents individual second guide rollers from moving to their extreme positions due to excessive tension at the label dispensing mechanism, thus reducing the buffer capacity and improving operational stability. Attached Figure Description

[0023] Figure 1 This is a structural diagram of a caching mechanism in one embodiment of this application.

[0024] Figure 2 for Figure 1 The diagram shows the exploded structure of the cache mechanism.

[0025] Figure 3 This is a structural diagram of a label feeding device according to an embodiment of this application.

[0026] Figure 4 This is a structural diagram of the base paper and label paper in one embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Buffer mechanism; 11. Support base; 111. Base body; 1111. Mounting slot; 112. Cover plate; 1121. Slide groove; 12. First guide roller; 13. Sliding seat; 14. Second guide roller; 141. Limiting part; 15. Elastic element; 16. Guide rail; 17. Guide rod; 181. First sensor; 182. Second sensor; 183. Third sensor; 20. Backing paper; 21. Label paper; 30. First drive mechanism; 31. Drive wheel; 32. Pressure roller; 40. Printing mechanism; 50. Supporting roller; 60. First detector; 70. Damping roller. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] As described in the background section, labeling devices in related technologies require slowing down printing or label dispensing speeds, or even stopping for maintenance, during normal labeling operation, thus preventing continuous operation and resulting in low labeling efficiency. Even if a buffer mechanism exists in related technologies, placing it between the printing and dispensing mechanisms presents the following problems: Firstly, if the label paper buffer capacity is too large, it will occupy a lot of space, or the labels may easily detach from the backing paper prematurely due to their scattered nature, leading to subsequent labeling failures. Secondly, if the label paper buffer capacity is too small, it will not meet the demand. Furthermore, to meet the dispensing requirements, the tension of the label paper at the dispensing mechanism is usually high, which reduces the buffer capacity at the buffer mechanism, thus decreasing operational stability.

[0031] For the reasons mentioned above, this application provides a caching mechanism and labeling device, which can improve work efficiency and has high operational stability.

[0032] See Figure 1 , Figure 2 and Figure 4 , Figure 1 A structural diagram of the cache mechanism 10 in one embodiment of this application is shown. Figure 2 It shows Figure 1 The exploded structure diagram of the cache mechanism 10 shown. Figure 4This diagram illustrates the structure of the base paper 20 and label paper 21 in one embodiment of this application. One embodiment of this application provides a buffer mechanism 10, which includes: a support base 11, a plurality of first guide rollers 12, a sliding seat 13, a plurality of second guide rollers 14, and an elastic element 15. All the first guide rollers 12 are fixedly disposed on the support base 11. The sliding seat 13 is slidably disposed on the support base 11. The sliding direction of the sliding seat 13 is as follows... Figure 1 As shown by arrow X, multiple second guide rollers 14 are connected to the sliding seat 13. An elastic element 15 connects the sliding seat 13 and the support seat 11. The sliding seat 13 serves to support and bear the second guide rollers 14, causing them to slide back and forth along the length of the support seat 11. The elastic element 15 acts as a buffer. Specifically, when the base paper 20 wound around the second guide rollers 14 is tensioned, it will cause each second guide roller 14 and the sliding seat 13 to slide along arrow X, compressing or stretching the elastic element 15, causing it to elastically deform and store energy. Conversely, when the base paper 20 is relaxed, the sliding seat 13 and the second guide rollers 14 will slide in the opposite direction of arrow X under the restoring force of the elastic element 15, thus buffering the base paper 20.

[0033] In use, the aforementioned buffer mechanism 10 allows the base paper 20 to pass alternately through the first guide roller 12 and the second guide roller 14, which guide the base paper 20. Since each first guide roller 12 is fixed to the support base 11, the sliding seat 13 moves along the support base 11, causing each second guide roller 14 to move synchronously. The elastic element 15 adaptably deforms or returns to its original position. Therefore, on the one hand, because there are multiple first guide rollers 12 and second guide rollers 14, the base paper 20 is arranged in an S-shape around the buffer mechanism 10, resulting in a small overall size and a large buffer capacity, meeting the buffering requirements of the labeling device. Furthermore, when placed between the printing mechanism 40 and the label dispensing mechanism, it enables continuous operation without stopping, improving work efficiency. On the other hand, when the sliding seat 13 slides along the support base 11, it causes each second guide roller 14 to move synchronously, preventing excessive tension at the label dispensing mechanism from causing a single second guide roller 14 to move to its limit and reducing the buffer capacity, thus improving operational stability.

[0034] The number of first guide rollers 12 and second guide rollers 14 may be the same, differ by one, or be set in other ways. This is not limited and can be flexibly adjusted and set according to actual needs. The number of each of the first guide rollers 12 and the second guide rollers 14 may include, but is not limited to, two, three, four, five, or more. Specifically, in this embodiment, three first guide rollers 12 and four second guide rollers 14 are used.

[0035] For example, the buffer mechanism 10 also includes a guide component. The guide component is mounted on the support base 11. The slide 13 is connected to the guide component. In this way, the guide component guides the slide 13, ensuring stable and reliable operation of the slide 13.

[0036] Based on the aforementioned embodiments, the guide assembly includes a guide rail 16. The guide rail 16 is connected to the support base 11, and the sliding base 13 is slidably engaged with the guide rail 16.

[0037] Specifically, two guide rails 16 are provided, arranged side by side with a gap between them. In this way, under the guidance of the two guide rails 16, the sliding seat 13 operates stably and reliably.

[0038] To further optimize guiding performance and buffer stability, the guiding assembly, based on the aforementioned embodiments, also includes a guide rod 17. The guide rod 17 is connected to the support base 11, and its guiding direction is parallel to the extension direction of the guide rail 16. The sliding seat 13 also slides with the guide rod 17. The elastic element 15 is a spring and is sleeved around the guide rod 17.

[0039] Optionally, the guide rod 17 and the elastic element 15 are both located between the two guide rails 16. In this way, when the buffer mechanism 10 is working, the middle part of the sliding seat 13 is subjected to the spring force, the force is relatively balanced, and the operation is stable and reliable.

[0040] Optionally, both the guide rail 16 and the guide rod 17 extend along the length of the support base 11. All the first guide rods 12 are arranged sequentially at one end of the support base 11 along the width direction of the support base 11. All the second guide rods 14 are arranged sequentially on the sliding seat 13 along the width direction of the support base 11.

[0041] Wherein, the length direction of the support 11 is as follows Figure 1 As shown by arrow X in the diagram, the width direction of support base 11 is as follows: Figure 1 As indicated by the arrow Y in the diagram.

[0042] During the operation of the buffer mechanism 10, the sliding seat 13 and the second guide roller 14 reciprocate along the sliding direction X, which can easily cause the bottom paper 20 to move away from the second guide roller 14 along its axial direction. For example, the bottom end of the second guide roller 14 is connected to the sliding seat 13, and at least one of the top outer walls of the second guide roller 14 is provided with a limiting portion 141. Optionally, the limiting portion 141 is arranged around the outer periphery of the second guide roller 14. In this embodiment, limiting portions 141 are provided on the top outer walls of the two second guide rollers 14 arranged at the beginning and end along the movement direction of the bottom paper 20. The limiting portion 141 is used to abut and limit the bottom paper 20 along its axial direction. Thus, during the operation of the buffer mechanism 10, the limiting portion 141 can effectively prevent the bottom paper 20 from moving away from the second guide roller 14 along its axial direction.

[0043] It should be noted that the "limiting part 141" in this embodiment can be a part of the second guide rod 14, that is, the "limiting part 141" and the other parts of the second guide rod 14 are integrally formed; or it can be an independent component that can be separated from the other parts of the second guide rod 14, that is, the "limiting part 141" can be manufactured independently and then combined with the other parts of the second guide rod 14 to form a whole.

[0044] For example, the outer diameter of the second guide roller 14 is, but is not limited to, 30mm to 50mm, specifically, 30mm, 33mm, 35mm, 40mm, 43mm, 45mm, 48mm, or 50mm. When the outer diameter of the second guide roller 14 is less than 30mm, the label paper 21 on the base paper 20 will easily detach when it passes through the second guide roller 14; when the outer diameter of the second guide roller 14 is greater than 50mm, the outer diameter of the second guide roller 14 is large, resulting in a large overall volume of the buffer mechanism 10.

[0045] For example, the support base 11 includes a base body 111 and a cover plate 112. The cover plate 112 is detachably connected to the base body 111. The base body 111 is provided with a mounting groove 1111, and a sliding seat 13 is disposed within the mounting groove 1111. The cover plate 112 is disposed at the opening of the mounting groove 1111, and the cover plate 112 is provided with a sliding groove 1121 corresponding to the second guide rod 14. The second guide rod 14 passes through the sliding groove 1121 and extends into the mounting groove 1111 to connect with the sliding seat 13.

[0046] Specifically, the sliding seat 13, guide rail 16, guide rod 17, and elastic element 15 are all disposed within the mounting groove 1111. The support seat 11 prevents the sliding seat 13, guide rail 16, guide rod 17, and elastic element 15 from being exposed, thus protecting them.

[0047] Please see Figures 1 to 3In some embodiments, this application also provides a label feeding device, which includes a first driving mechanism 30, a printing mechanism 40, and a buffer mechanism 10 as described in any of the above embodiments. The printing mechanism 40, the first driving mechanism 30, and the buffer mechanism 10 are arranged sequentially along the movement direction of the base paper 20. The first driving mechanism 30 provides power to drive the base paper 20 to move. On one hand, the first driving mechanism 30 enables each label 21 on the base paper 20 to move to a position opposite to the printing mechanism 40, allowing the printing mechanism 40 to print each label 21 on the base paper 20 sequentially. On the other hand, the first driving mechanism 30 enables the base paper 20 and label 21 printed by the printing mechanism 40 to enter the buffer mechanism 10, which buffers the base paper 20 and label 21, thus eliminating the need for the printing mechanism 40 to stop, resulting in higher working efficiency. Furthermore, when the printing mechanism 40 malfunctions, the buffer mechanism 10 still stores the base paper 20 and label 21, allowing it to continue supplying the label feeding mechanism normally, thus eliminating the need for the label feeding mechanism to stop, resulting in higher working efficiency.

[0048] The aforementioned label feeding device includes a buffer mechanism 10, and the technical effect is brought about by the buffer mechanism 10. The beneficial effects include the beneficial effects of the buffer mechanism 10, which will not be elaborated here.

[0049] In some embodiments, the label feeding device further includes a support roller 50. The support roller 50 is disposed opposite to the printing mechanism 40 and is used to carry and guide the base paper 20. The first drive mechanism 30 provides power to pull the base paper 20, causing the base paper 20 to run past the support roller 50. When the label paper 21 on the base paper 20 moves to the support roller 50, the printing mechanism 40 can print the label paper 21 on the base paper 20 that has moved to the support roller 50. The printed label paper 21 continues to enter the buffer mechanism 10 along with the base paper 20, and is output by the buffer mechanism 10 to the label dispensing mechanism.

[0050] Based on the aforementioned embodiments, the label feeding device further includes a first detector 60. The first detector 60 is located upstream of the support roller 50. The first detector 60 is used to detect the position of the label paper 21. The first detector 60 is electrically connected to a controller. The controller is electrically connected to the printing mechanism 40, and the controller is used to control the printing mechanism 40 to perform printing operations based on the detection signal from the first detector 60. In this way, the printing accuracy of the label paper 21 can be improved.

[0051] Optionally, the first drive mechanism 30 includes a first motor, a drive wheel 31, and a pressure roller 32. The first motor is connected to the drive wheel 31 and drives the drive wheel 31 to rotate. The drive wheel 31 abuts against the bottom paper 20 and drives the bottom paper 20 to move. The pressure roller 32 abuts against the drive wheel 31 to press the bottom paper 20.

[0052] In this system, the bottom paper 20 at the outlet of the buffer mechanism 10 is usually in a relaxed state, which affects the dispensing efficiency of the dispensing mechanism. To improve the dispensing efficiency, the bottom paper 20 at the dispensing mechanism needs to be in a tensioned state. For example, the dispensing device also includes a damping roller 70. The damping roller 70 has a large rotational resistance; when the force between the bottom paper 20 and the damping roller 70 is higher than the rotational resistance, the damping roller 70 rotates; when the force between the bottom paper 20 and the damping roller 70 is lower than the rotational resistance, the damping roller 70 cannot rotate. The damping roller 70 is located between the buffer mechanism 10 and the dispensing mechanism. That is, the bottom paper 20 at the outlet of the buffer mechanism 10 is transmitted to the dispensing mechanism via the damping roller 70. Thus, even if the bottom paper 20 at the outlet of the buffer mechanism 10 is in a relaxed state, the damping roller 70 has a large rotational resistance, which can prevent the relaxed bottom paper 20 at the outlet of the buffer mechanism 10 from having an adverse effect on the bidding at the bidding mechanism. The bottom paper 20 between the damping roller 70 and the bidding mechanism can be in a tensioned state under the force of the second driving mechanism, thereby ensuring the bidding efficiency of the bidding mechanism.

[0053] In other embodiments, this application also provides a labeling system, including a label dispensing mechanism, a second driving mechanism, and a label feeding device as described in any of the above embodiments. The printing mechanism 40, the first driving mechanism 30, the buffer mechanism 10, the label dispensing mechanism, and the second driving mechanism are arranged sequentially along the movement direction of the base paper 20. The structure of the second driving mechanism is similar to that of the first driving mechanism 30, as long as it can provide power to drive the movement of the base paper 20. When the product moves to the labeling position, the second driving mechanism operates, providing power to drive the movement of the base paper 20, causing the label paper 21 on the base paper 20 to be peeled off and adhered to the surface of the product when it passes the label dispensing mechanism.

[0054] The labeling system described above includes a label feeding device. The technical effect is brought about by the technical effect of the label feeding device, and the beneficial effect is brought about by the label feeding device, which will not be elaborated here.

[0055] Based on the aforementioned embodiments, the buffer mechanism 10 further includes a first sensor 181, a second sensor 182, and a third sensor 183. Each of the first sensor 181, second sensor 182, and third sensor 183 includes, but is not limited to, a laser sensor, a magnetic sensor, or an ultrasonic sensor. The first sensor 181, second sensor 182, and third sensor 183 are sequentially and spaced apart from each other on the support base 11 along the sliding direction of the sliding seat 13. Specifically, the first sensor 181 is disposed at a first end of the support base 11 along its length, and the third sensor 183 is disposed at a second end of the support base 11 along its length. The second sensor 182 is disposed at the middle portion of the support base 11 along its length. The first sensor 181, second sensor 182, and third sensor 183 are used to sense the sliding seat 13. Specifically, when the sliding seat 13 moves to the first end of the support seat 11 along the length direction, the first sensor 181 can sense the sliding seat 13, indicating that the sliding seat 13 has moved to the first limit position; when the sliding seat 13 moves to the second end of the support seat 11 along the length direction, the third sensor 183 can sense the sliding seat 13, indicating that the sliding seat 13 has moved to the second limit position; when the sliding seat 13 moves to the middle part of the support seat 11 along the length direction, the second sensor 182 can sense the sliding seat 13, indicating that the sliding seat 13 has moved to the middle part of the support seat 11.

[0056] Optionally, the first end is as follows: Figure 3 The upper end of the support base 11 shown is the end of the support base 11 that is away from the first guide rod 12; the second end is as follows: Figure 3 The lower end of the support base 11 shown is the end on which the first guide rod 12 is mounted.

[0057] Specifically, when the sliding seat 13 is in the first extreme position, the buffer amount of the bottom paper 20 in the buffer mechanism 10 reaches the maximum value and cannot be increased; when the sliding seat 13 is in the second extreme position, the buffer amount of the bottom paper 20 in the buffer mechanism 10 reaches the minimum value and cannot be decreased.

[0058] Based on the foregoing embodiments, the labeling system further includes a controller. The first drive mechanism 30, the second drive mechanism, the first sensor 181, the second sensor 182, and the third sensor 183 are all electrically connected to the controller. The controller is used to control the operation of the first drive mechanism 30 and the second drive mechanism according to the sensing signals of the first sensor 181, the second sensor 182, and the third sensor 183.

[0059] When the sliding seat 13 is at its first extreme position, the controller controls the first drive mechanism 30 to decrease its speed and controls the second drive mechanism to increase its speed. When the sliding seat 13 is at its second extreme position, the controller controls the first drive mechanism 30 to increase its speed and controls the second drive mechanism to decrease its speed. When the sliding seat 13 is positioned opposite the second sensor 182, the sliding seat 13 is located in the middle of the support base 11. The controller controls the first drive mechanism 30 to maintain its current operating speed and controls the second drive mechanism to maintain its current operating speed. In this way, the sliding seat 13 and the second guide roller 14 are positioned in the middle of the support base 11 along its length, thereby improving the operational stability of the buffer mechanism 10.

[0060] In some embodiments, the labeling system further includes a second detector and a label rejection mechanism. Both the second detector and the label rejection mechanism are electrically connected to the controller. The second detector is disposed between the buffer mechanism 10 and the label dispensing mechanism. The second detector is used to detect whether the label 21 on the base paper 20 is acceptable. When the label 21 on the base paper 20 is unacceptable, the controller controls the label rejection mechanism to operate based on the unacceptable signal detected by the second detector, and the label rejection mechanism removes the unacceptable label 21 from the base paper 20.

[0061] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0062] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0063] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0064] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0065] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0066] 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.

[0067] The embodiments described above are merely illustrative of several implementation methods of this application, and 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 those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A caching mechanism, characterized in that, The caching mechanism includes: Support base; Multiple first guide rods, all of which are fixedly mounted on the support base; A sliding seat, which is slidably disposed on the support seat; Multiple second guide rollers, each of which is connected to the sliding seat; and An elastic element is connected between the sliding seat and the support seat.

2. The caching mechanism according to claim 1, characterized in that, The buffer mechanism further includes a guide component, which is mounted on the support base, and the sliding base is connected to the guide component.

3. The caching mechanism according to claim 2, characterized in that, The guiding component includes a guide rail; the guide rail is connected to the support base, and the sliding base is slidably engaged with the guide rail.

4. The caching mechanism according to claim 3, characterized in that, The guiding assembly further includes a guide rod connected to the support base. The guiding direction of the guide rod is parallel to the extension direction of the guide rail. The sliding base also slides with the guide rod. The elastic element is a spring and is sleeved on the outside of the guide rod.

5. The caching mechanism according to claim 1, characterized in that, The bottom end of the second guide rod is connected to the sliding seat, and at least one of the top outer walls of the second guide rod is provided with a limiting part, which is used to abut and limit the bottom paper along the axial direction of the second guide rod.

6. The caching mechanism according to claim 1, characterized in that, The outer diameter of the second guide rod is 30mm to 50mm.

7. The caching mechanism according to claim 1, characterized in that, The support base includes a base body and a cover plate; the base body is provided with an installation groove, the sliding seat is disposed in the installation groove, the cover plate is connected to the base body and is disposed at the opening of the installation groove, the cover plate is provided with a sliding groove corresponding to the second guide rod, the second guide rod passes through the sliding groove and extends into the installation groove to connect with the sliding seat.

8. A label feeding device, characterized in that, The label feeding device includes a first driving mechanism, a printing mechanism, and a buffer mechanism as described in any one of claims 1 to 7; the printing mechanism, the first driving mechanism, and the buffer mechanism are arranged sequentially along the movement direction of the base paper; the printing mechanism is used to print labels on the base paper, and the first driving mechanism is used to drive the base paper so that the base paper enters the buffer mechanism.

9. The label feeding device according to claim 8, characterized in that, The bidding device further includes a damping roller; the damping roller is disposed between the buffer mechanism and the bidding mechanism, and the bottom paper at the outlet of the buffer mechanism is transmitted to the bidding mechanism via the damping roller.

10. A labeling system, characterized in that, It includes a bidding mechanism, a second driving mechanism, and a bidding device as described in claim 8 or 9; the printing mechanism, the first driving mechanism, the buffer mechanism, the bidding mechanism, and the second driving mechanism are arranged sequentially along the movement direction of the base paper.

11. The labeling system according to claim 10, characterized in that, The labeling system further includes a controller, and the buffer mechanism further includes a first sensor, a second sensor, and a third sensor; the first driving mechanism, the second driving mechanism, the first sensor, the second sensor, and the third sensor are all electrically connected to the controller; the first sensor, the second sensor, and the third sensor are sequentially and spaced apart from each other along the sliding direction of the sliding seat, the first sensor, the second sensor, and the third sensor are used to sense the sliding seat, and the controller is used to control the first driving mechanism and the second driving mechanism to work according to the sensing signals of the first sensor, the second sensor, and the third sensor.

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