Label paper gluing wheel

Abstract

The invention provides a trademark paper gluing wheel which comprises a glue cylinder, a glue roller and a glue roller, the glue wheel set is rotatably arranged in the glue cavity and comprises a plurality of glue wheels which are coaxially arranged, each glue wheel is provided with a plurality of groups of gluing positions, and gluing pits in at least one group of gluing positions extend in the direction inclined to the axial direction of the glue wheel; the contrast wheel set is rotatably arranged on one side of the glue wheel set and comprises a plurality of contrast wheels which are coaxially arranged, and a clamping space for gluing the label paper is formed between the contrast wheels and the glue wheels which correspond to each other. According to the label paper gluing wheel provided by the invention, the gluing pit in the gluing position extends in the direction inclined to the axial direction of the glue wheel, so that the gluing wheel can more effectively smear glue, the gluing area is increased, and the gluing efficiency is improved. And meanwhile, the glue applied in the manner is more uniformly distributed on the label paper, so that the bonding strength between the label paper and the lining paper is enhanced, and the glue failure phenomenon is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cigarette making machinery, and particularly relates to a trademark paper glue coating wheel. BACKGROUND

[0002] In the existing trademark paper glue coating process, the traditional glue coating wheel design usually adopts dot matrix pits as glue coating positions. Such a design of glue coating wheel has many shortcomings.

[0003] Firstly, the glue coating area of the dot matrix pit is relatively small, which results in a limited amount of glue that can be coated each time. This not only affects the glue coating efficiency, but also makes it difficult to ensure sufficient adhesion between the trademark paper and the inner liner paper in actual application. Secondly, the structure of the dot matrix pit makes the glue inside the pit prone to dryness. Due to the limitation of the pit shape, the glue is prone to accumulate and dry inside the pit when not used for a long time, which not only increases the cleaning difficulty, but also may affect the subsequent glue coating effect. Thirdly, the traditional dot matrix pit glue coating method cannot guarantee the uniform distribution of glue between the trademark paper and the inner liner paper after glue coating, which results in poor adhesion. In addition, due to the poor adhesion, the trademark paper is prone to folding problems in the subsequent folding and processing, which not only affects the appearance quality of the product, but also may reduce the service life of the product. SUMMARY

[0004] The present application provides a trademark paper glue coating wheel to solve the problems of small glue coating area, glue dryness, poor adhesion and folding problems existing in the existing dot matrix pit glue coating wheel design.

[0005] The present application provides a trademark paper glue coating wheel, comprising: a glue cylinder formed with a glue cavity; a glue wheel group rotatably arranged in the glue cavity, comprising a plurality of coaxially arranged glue wheels, each of which is provided with a plurality of glue coating positions, and the glue coating pits in at least one group of the glue coating positions are arranged in a direction inclined to the axial direction of the glue wheel; a counter lining wheel group rotatably arranged on one side of the glue wheel group, comprising a plurality of coaxially arranged counter lining wheels, each of which is opposite to a glue wheel, and the counter lining wheels and the glue wheels correspond to each other to form a clamping space for trademark paper glue coating.

[0006] According to the trademark paper glue coating wheel provided by the present application, the glue wheel group further comprises a first driving member and a first rotating shaft; the first driving member is in transmission connection with the first rotating shaft, and each glue wheel is arranged on the first rotating shaft in sequence and at intervals.

[0007] The trademark paper glue wheel provided by the application further comprises a second driving element and a second rotating shaft. The second driving element is in transmission connection with the second rotating shaft, and each of the contrast wheels is arranged on the second rotating shaft in sequence.

[0008] The trademark paper glue wheel provided by the application comprises three glue wheels, namely a first glue wheel, a second glue wheel and a third glue wheel arranged in sequence. The trademark paper glue wheel provided by the application comprises three contrast wheels, namely a first contrast wheel, a second contrast wheel and a third contrast wheel arranged in sequence. The first glue wheel is arranged opposite to the first contrast wheel, and a clamping space for clamping one side of the trademark paper is formed. The second glue wheel is arranged opposite to the second contrast wheel, and a clamping space for clamping a middle position of the trademark paper is formed. The third glue wheel is arranged opposite to the third contrast wheel, and a clamping space for clamping the other side of the trademark paper is formed.

[0009] Each glue pit in the glue applying position on the first glue wheel is arranged in a direction inclined to the axial direction of the glue wheel. Each glue pit in the glue applying position on the third glue wheel is arranged in a direction inclined to the axial direction of the glue wheel.

[0010] Each glue pit in the glue applying position on the second glue wheel is arranged in the axial direction of the glue wheel.

[0011] The glue pits in the glue applying position on the first glue wheel and the third glue wheel are divided into strip-shaped glue pits and special-shaped glue pits, the strip-shaped glue pits are arranged in sequence and in parallel, and the special-shaped glue pits are arranged on both sides of the strip-shaped glue pits to form a square glue applying position.

[0012] Each of the contrast wheels is provided with an annular groove extending in the circumferential direction, the annular groove on the contrast wheel is matched with the corresponding glue wheel, and a part of the glue wheel extends into the annular groove.

[0013] The annular groove is provided with an elastic material layer on the groove bottom and / or the side surface, and the elastic material layer is used for providing buffering when the glue wheel and the contrast wheel clamp the trademark paper.

[0014] The trademark paper glue wheel provided by the application further comprises an adjusting mechanism for adjusting the relative position between the glue wheel set and the counter wheel set.

[0015] The trademark paper glue wheel provided by the application can more effectively apply glue, increase the glue application area and improve the glue application efficiency by arranging the glue application pits in the glue application position to extend in a direction inclined to the axis of the glue wheel. Meanwhile, the glue applied in this way is more evenly distributed on the trademark paper, the bonding strength between the trademark paper and the inner liner paper is enhanced, and the glue opening phenomenon is avoided. In addition, the inclined glue application pit design helps to reduce the risk of glue drying. This not only simplifies the cleaning process of the glue wheel, but also prolongs the service life of the glue wheel and ensures the stability of the glue application quality. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a schematic diagram of the trademark paper glue wheel provided by the application.

[0018] Figure 2 is a schematic diagram of the first glue wheel provided by the application.

[0019] Figure 3 is a schematic diagram of the third glue wheel provided by the application.

[0020] Figure 4 is a schematic diagram of the second glue wheel provided by the application.

[0021] Figure 5 is a schematic diagram of the glue wheel set provided by the application.

[0022] Figure 6 is a schematic diagram of the counter wheel provided by the application.

[0023] REFERENCE NUMERALS: 100, glue cylinder; 110, glue cavity; 200, glue wheel set; 210, first glue wheel; 220, second glue wheel; 230, third glue wheel; 240, first rotating shaft; 250, glue application position; 2510, glue application pit; 2520, strip-shaped glue application pit; 2530, special-shaped glue application pit; 300, counter wheel set; 310, first counter wheel; 320, second counter wheel; 330, third counter wheel; 340, second rotating shaft; 350, annular groove; 400, trademark paper. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0025] The following is combined Figures 1-6 The present invention describes a label paper 400 gluing wheel, which is used to apply glue to the label paper 400 of a cigarette, and after gluing, the inner lining paper can be pasted onto the label paper 400.

[0026] In some embodiments, such as Figure 1 As shown, the label paper 400 gluing roller includes: a glue cylinder 100, a glue wheel assembly 200, and a backing wheel assembly 300. The glue cylinder 100 forms a glue cavity 110; the glue wheel assembly 200 is rotatably disposed in the glue cavity 110, including multiple coaxially arranged glue wheels, each glue wheel having multiple sets of gluing positions 250, wherein at least one set of gluing positions 250 has a gluing pit 2510 extending in a direction inclined to the axial direction of the glue wheel; the backing wheel assembly 300 is rotatably disposed on one side of the glue wheel assembly 200, including multiple coaxially arranged backing wheels, each backing wheel being opposite to a glue wheel, and a clamping space for gluing the label paper 400 is formed between the corresponding backing wheels and the glue wheels.

[0027] In this embodiment, the glue cylinder 100 has an internal glue chamber 110. This glue chamber 110 is used to store and supply the glue required during the glue application process. The glue wheel assembly 200 is rotatable and is disposed inside the glue chamber 110 of the glue cylinder 100. The glue wheel assembly 200 consists of multiple coaxially arranged glue wheels, each glue wheel having multiple sets of glue application positions 250. Among these glue application positions 250, at least one set has its glue application pit 2510 designed to be inclined to the axial direction of the glue wheel. Therefore, during glue application, the glue can be evenly applied to the label paper 400, and it may also help reduce glue accumulation on the wheel, thereby improving the efficiency and quality of glue application. The backing wheel assembly 300 is also rotatable and is disposed on one side of the glue wheel assembly 200. The backing wheel assembly 300 consists of multiple coaxially arranged backing wheels, each backing wheel corresponding to one glue wheel. Between these corresponding counter-coating rollers and glue rollers, a clamping space is formed for applying glue to the label paper 400. When the label paper 400 passes through this clamping space, the glue in the glue application pit 2510 of the glue roller is evenly transferred onto the label paper 400, while the counter-coating rollers play a supporting and assisting role in the glue application.

[0028] Before applying glue using the label paper 400 gluing wheel, firstly, pour an appropriate amount of glue into the glue chamber 110 of the glue tank 100, ensuring sufficient glue supply in the glue chamber 110. Next, control the glue wheel assembly 200 and the counterweight wheel assembly 300 to begin rotating. At this time, the glue wheel will be immersed in the glue application pit 2510, while the counterweight wheel remains in a position opposite to the glue wheel.

[0029] When the label paper 400 is fed into the clamping space of the glue-applying roller system, it is clamped between the corresponding glue roller and the counterweight roller. As the glue roller rotates, it continuously absorbs and carries away a certain amount of glue, which is then evenly distributed in the glue-applying pits 2510 on its surface. As the label paper 400 passes through the glue-applying pits 2510, the glue is transferred to its surface. Because the glue-applying pits 2510 are angled, the glue can better cover the surface of the label paper 400 during transfer, reducing accumulation on the glue roller. Simultaneously, the presence of the counterweight rollers helps maintain the flatness of the label paper 400, ensuring that the glue is evenly applied to its entire surface.

[0030] After the adhesive is applied, the label paper 400 proceeds to the next step, which is usually drying or curing. During this process, the adhesive on the label paper 400 gradually dries and cures, forming a strong adhesive layer.

[0031] After the adhesive is applied, glue may accumulate on the surfaces of the glue wheel and the backing wheel. Therefore, these components need to be cleaned regularly to maintain their good working condition.

[0032] The adhesive applicator wheel for the label paper 400 provided by this invention features adhesive application pits 2510 in the adhesive application position 250 that extend in a direction inclined to the axial direction of the adhesive wheel. This allows the adhesive applicator wheel to apply adhesive more effectively, increasing the adhesive application area and thus improving adhesive application efficiency. Simultaneously, this method results in a more uniform distribution of adhesive on the label paper 400, enhancing the adhesion strength between the label paper 400 and the inner lining paper and preventing delamination. Furthermore, the inclined adhesive application pits 2510 design helps reduce the risk of adhesive drying out. This not only simplifies the cleaning process of the adhesive applicator wheel but also extends its service life while ensuring the stability of the adhesive application quality.

[0033] In some embodiments, such as Figure 1 As shown, the glue wheel assembly 200 also includes a first drive member and a first rotating shaft 240. The first drive member is connected to the first rotating shaft 240 for transmission, and each glue wheel is arranged sequentially at intervals on the first rotating shaft 240.

[0034] In this embodiment, the first driving member can be selected as an electric motor. The first driving member can drive each glue wheel to rotate through the first rotating shaft 240. The electric motor is selected as the power source. The electric motor is connected with the first rotating shaft 240 through a certain transmission mode (such as direct connection, belt transmission, chain transmission or gear transmission, etc.) to transmit torque and drive the first rotating shaft 240 to rotate. The first rotating shaft 240 is the central shaft of the glue wheel group 200, which supports all the glue wheels and allows them to rotate around it. Each glue wheel is arranged on the first rotating shaft 240 in sequence and at intervals, and each glue wheel is firmly mounted on the first rotating shaft 240 but keeps a certain distance from each other so that they can independently immerse in and rotate out of the glue.

[0035] When the electric motor is started, it will transmit power to the first rotating shaft 240 through the transmission mode. The first rotating shaft 240 starts to rotate after receiving the power and drives each glue wheel mounted thereon to rotate together. Since the glue wheels are arranged on the first rotating shaft 240 in sequence and at intervals, they will immerse in the glue in the glue cavity 110 in sequence and carry out a certain amount of glue for gluing as the first rotating shaft 240 rotates.

[0036] In some embodiments, as shown in Figure 1 The contrast wheel group 300 further comprises a second driving member and a second rotating shaft 340. The second driving member is in transmission connection with the second rotating shaft 340, and each contrast wheel is arranged on the second rotating shaft 340 in sequence and at intervals.

[0037] In this embodiment, the second driving member is also selected as an electric motor or other forms of rotating power device as the power source. The second driving member is connected with the second rotating shaft 340 through a certain transmission mode (such as direct connection, belt transmission, chain transmission or gear transmission, etc.) to transmit torque and drive the second rotating shaft 340 to rotate. The second rotating shaft 340 is the central shaft of the contrast wheel group 300, which supports all the contrast wheels and allows them to rotate around it. Each contrast wheel is arranged on the second rotating shaft 340 in sequence and at intervals, and each contrast wheel is firmly mounted on the second rotating shaft 340 but keeps a certain distance from each other so that they can form a clamping space with the corresponding glue wheel for gluing.

[0038] In some embodiments, as shown in Figures 1 to 5As shown, the glue wheels are provided with three, which are sequentially provided with the first glue wheel 210, the second glue wheel 220 and the third glue wheel 230. The contrast wheels are provided with three, which are sequentially provided with the first contrast wheel 310, the second contrast wheel 320 and the third contrast wheel 330. The first glue wheel 210 is provided opposite to the first contrast wheel 310, and a clamping space for clamping one side of the trademark paper 400 is formed. The second glue wheel 220 is provided opposite to the second contrast wheel 320, and a clamping space for clamping the middle position of the trademark paper 400 is formed. The third glue wheel 230 is provided opposite to the third contrast wheel 330, and a clamping space for clamping the other side of the trademark paper 400 is formed.

[0039] In the embodiment, the first glue wheel 210 is provided opposite to the first contrast wheel 310, and a clamping space for clamping one side of the trademark paper 400 is formed. When the trademark paper 400 is sent into the clamping space, it will be clamped between the first glue wheel 210 and the first contrast wheel 310, and the glue in the glue applying pit 2510 on the first glue wheel 210 will be uniformly transferred to the one side surface of the trademark paper 400. The second glue wheel 220 is provided opposite to the second contrast wheel 320, and a clamping space for clamping the middle position of the trademark paper 400 is formed. In the clamping space, the trademark paper 400 will be clamped between the second glue wheel 220 and the second contrast wheel 320, and the glue in the glue applying pit 2510 on the second glue wheel 220 will be uniformly transferred to the middle position of the trademark paper 400. The third glue wheel 230 is provided opposite to the third contrast wheel 330, and a clamping space for clamping the other side of the trademark paper 400 is formed. When the trademark paper 400 passes through the first two clamping spaces and completes the glue applying, it will be sent into the clamping space and clamped between the third glue wheel 230 and the third contrast wheel 330. The glue in the glue applying pit 2510 on the third glue wheel 230 will be uniformly transferred to the one side surface of the trademark paper 400, thereby completing the entire glue applying process.

[0040] By providing three glue wheels and three contrast wheels and sequentially arranging them to form three clamping spaces, the glue applying on different positions of the trademark paper 400 can be quickly completed at the same time.

[0041] In some embodiments, as shown in FIG. 2, the glue applying position 250 on the first glue wheel 210 is provided with a plurality of glue applying pits 2510, and the glue applying position 250 on the third glue wheel 230 is provided with a plurality of glue applying pits 2510. Figures 1 to 5 As shown, each glue applying pit 2510 in the glue applying position 250 on the first glue wheel 210 is provided in a direction oblique to the axial direction of the glue wheel; each glue applying pit 2510 in the glue applying position 250 on the third glue wheel 230 is provided in a direction oblique to the axial direction of the glue wheel. Each glue applying pit 2510 in the glue applying position 250 on the second glue wheel 220 is provided in the axial direction of the glue wheel.

[0042] By adopting different glue applying pit 2510 setting modes on different glue wheels, uniform glue application to different parts of the trademark paper 400 can be achieved. In particular, the inclined glue applying pit 2510 design on the first glue wheel 210 and the third glue wheel 230, this way of applying glue is more evenly distributed on the trademark paper 400, enhancing the bonding strength between the trademark paper 400 and the inner liner paper, avoiding the occurrence of glue opening phenomenon. In addition, the inclined glue applying pit 2510 design helps to reduce the risk of glue drying. This not only simplifies the cleaning process of the glue applying wheel, but also prolongs the service life of the glue applying wheel, while ensuring the stability of the glue applying quality.

[0043] The second glue wheel 220 adopts this way of setting the glue applying pit 2510 along the axial direction, which makes the glue application uniform in the middle position of the trademark paper 400. Uniform glue application can ensure that the bonding strength between the trademark paper 400 and the inner liner paper is enhanced, thereby avoiding the occurrence of glue opening phenomenon.

[0044] Different glue applying pit 2510 setting modes can also adapt to different glue applying needs. For example, if more glue needs to be applied to the middle part of the trademark paper 400, the depth or number of the glue applying pit 2510 on the second glue wheel 220 can be adjusted; if more glue needs to be applied to the edge part of the trademark paper 400, the inclination angle or depth of the glue applying pit 2510 on the first glue wheel 210 and the third glue wheel 230 can be adjusted.

[0045] As shown in Figure 2 and Figure 3 , the glue applying pit 2510 in the glue applying position 250 on the first glue wheel 210 and the third glue wheel 230 is divided into strip-shaped glue applying pit 2520 and special-shaped glue applying pit 2530, the strip-shaped glue applying pit 2520 is arranged in turn and in parallel, and the special-shaped glue applying pit 2530 is arranged on both sides of the strip-shaped glue applying pit 2520 to form a square glue applying position 250.

[0046] In this embodiment, the strip-shaped glue applying pits 2520 are the main glue applying pits 2510 on the first glue wheel 210 and the third glue wheel 230. These strip-shaped glue applying pits 2520 are arranged in sequence and side by side, forming a continuous and linear glue applying area. The design of the strip-shaped glue applying pits 2520 helps to evenly distribute the glue along the longitudinal direction of the trademark paper 400 during the glue applying process. In addition to the strip-shaped glue applying pits 2520, the first glue wheel 210 and the third glue wheel 230 are also provided with special-shaped glue applying pits 2530. These special-shaped glue applying pits 2530 are arranged on both sides of the strip-shaped glue applying pits 2520 and cooperate with the strip-shaped glue applying pits 2520 to form a square-shaped glue applying position 250. By combining the use of strip-shaped glue applying pits 2520 and special-shaped glue applying pits 2530, uniform glue application to different parts of the trademark paper 400 can be achieved. The overall square-shaped glue applying position 250 design helps to increase the contact area between the trademark paper 400 and the inner liner paper, thereby enhancing the bonding strength. Especially in application scenarios that require high bonding strength, the glue applying effect can be significantly improved.

[0047] In some embodiments, as shown in FIGS. 1A and 1B, each of the counter wheels is provided with an annular groove 350 extending along the circumferential direction thereof. The annular groove 350 on the counter wheel is adapted to the corresponding glue wheel. A portion of the glue wheel (usually the edge portion of the glue applying surface or glue applying pit 2510) can extend into the annular groove 350 to ensure that the counter wheel and the glue wheel are tightly and stably connected when they rotate relative to each other. When the counter wheel and the glue wheel rotate relative to each other, the glue can be evenly applied to the trademark paper 400. Figure 1 and Figure 6 In some embodiments, as shown in FIGS. 1A and 1B, each of the counter wheels is provided with an annular groove 350 extending along the circumferential direction thereof. The annular groove 350 on the counter wheel is adapted to the corresponding glue wheel. A portion of the glue wheel (usually the edge portion of the glue applying surface or glue applying pit 2510) can extend into the annular groove 350 to ensure that the counter wheel and the glue wheel are tightly and stably connected when they rotate relative to each other. When the counter wheel and the glue wheel rotate relative to each other, the glue can be evenly applied to the trademark paper 400.

[0048] In this embodiment, each of the counter wheels is provided with an annular groove 350 extending along the circumferential direction thereof. The annular groove 350 is continuously distributed along the circumferential direction of the counter wheel, forming a complete annular structure. The annular groove 350 on the counter wheel is adapted to the corresponding glue wheel. A portion of the glue wheel (usually the edge portion of the glue applying surface or glue applying pit 2510) can extend into the annular groove 350 to ensure that the counter wheel and the glue wheel are tightly and stably connected when they rotate relative to each other. When the counter wheel and the glue wheel rotate relative to each other, the glue can be evenly applied to the trademark paper 400.

[0049] Optionally, in some embodiments, the bottom and / or side of the annular groove 350 is provided with a layer of elastic material, which is used to provide cushioning when the glue wheel and the counter wheel hold the trademark paper 400.

[0050] In some embodiments, the elastic material layer can be provided on the bottom of the annular groove 350, or on both the bottom and the side. The elastic material layer on the bottom mainly provides vertical cushioning, while the elastic material layer on the side can provide additional support and protection.

[0051] When the glue wheel and the counter wheel clamp the trademark paper 400 for gluing, the elastic material layer on the bottom and / or the side of the groove can absorb and disperse the pressure from the glue wheel and the counter wheel, thereby avoiding excessive pressure on the trademark paper 400 and causing damage. At the same time, these elastic material layers can also increase the contact area between the glue wheel and the counter wheel, improving the uniformity and stability of the gluing. The elastic material layer on the side can also prevent the trademark paper 400 from sliding or shifting during the gluing process, ensuring the accuracy of the gluing position 250.

[0052] In some embodiments, as shown in FIG. 4, the trademark paper 400 gluing wheel also includes an adjustment mechanism for adjusting the relative position between the glue wheel set 200 and the counter wheel set 300. Figures 1 to 6

[0053] In this embodiment, the main function of the adjustment mechanism is to adjust the relative position between the glue wheel set 200 and the counter wheel set 300. This includes adjusting parameters such as the gap, angle, or parallelism between them to ensure that the glue can be uniformly and accurately applied to the trademark paper 400 during the gluing process.

[0054] Through the adjustment mechanism, it is also possible to adapt to trademark papers 400 of different thicknesses and materials, as well as to adjust parameters such as the width and thickness of the gluing to meet different gluing requirements.

[0055] The adjustment mechanism can adopt different structural forms such as mechanical, pneumatic, hydraulic, or electric. The choice of these forms depends on factors such as the specific needs of the equipment, cost budget, and operational convenience.

[0056] For example, a mechanical adjustment mechanism can achieve position adjustment through mechanical structures such as threads or sliding rails; a pneumatic or hydraulic adjustment mechanism may

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent replacements to some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.​

Claims

1. A gumming wheel for a trademark paper, characterized in that The application relates to a glue cylinder, a glue wheel group and a counter wheel group. The glue cylinder is provided with a glue cavity. The glue wheel group is rotatably arranged in the glue cavity and comprises a plurality of coaxially arranged glue wheels. The counter wheel group is rotatably arranged on one side of the glue wheel group and comprises a plurality of coaxially arranged counter wheels.

2. The gummed wheel of claim 1, wherein, Each counter wheel is opposite to a glue wheel and forms a clamping space for trademark paper glue coating with the corresponding glue wheel. The glue wheel group further comprises a first driving element and a first rotating shaft.

3. The gummed wheel of claim 2, wherein, The first driving element is in transmission connection with the first rotating shaft, and each glue wheel is arranged on the first rotating shaft in sequence. The counter wheel group further comprises a second driving element and a second rotating shaft.

4. The gummed wheel of claim 3, wherein, The second driving element is in transmission connection with the second rotating shaft, and each counter wheel is arranged on the second rotating shaft in sequence. The glue wheel group comprises three glue wheels, i.e. a first glue wheel, a second glue wheel and a third glue wheel arranged in sequence. The counter wheel group comprises three counter wheels, i.e. a first counter wheel, a second counter wheel and a third counter wheel arranged in sequence. The first glue wheel is opposite to the first counter wheel and forms a clamping space for clamping one side of the trademark paper. The second glue wheel is opposite to the second counter wheel and forms a clamping space for clamping a middle position of the trademark paper.

5. The gummed wheel of claim 4, wherein, The third glue wheel is opposite to the third counter wheel and forms a clamping space for clamping the other side of the trademark paper. Each glue pit in the glue coating position on the first glue wheel is arranged in a direction inclined to the axial direction of the glue wheel.

6. The gummed wheel of claim 5, wherein, Each glue pit in the glue coating position on the third glue wheel is arranged in a direction inclined to the axial direction of the glue wheel.

7. The gummed wheel of claim 5 wherein, Each glue pit in the glue coating position on the second glue wheel is arranged in the axial direction of the glue wheel.

8. The gummed wheel of claim 1 wherein, The glue pits in the glue coating position on the first glue wheel and the third glue wheel are divided into strip-shaped glue pits and special-shaped glue pits.

9. The gummed wheel of claim 8, wherein, Each counter wheel is provided with an annular groove extending in the circumferential direction of the counter wheel.

10. The gummed wheel of any one of claims 1 to 9, wherein, The annular groove on the counter wheel is matched with the corresponding glue wheel. The bottom and / or side of the annular groove is provided with an elastic material layer for providing buffering when the glue wheel and the counter wheel clamp the trademark paper. The adjusting mechanism is used for adjusting the relative position between the glue wheel group and the counter wheel group.

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