A paper tube marking device

Abstract

The present invention relates to the technical field of paper tube marking, and particularly relates to a paper tube marking device, which includes a bottom plate. The upper surface of the bottom plate is fixedly connected with a first mounting plate, and the upper surface of the bottom plate is fixedly connected with a second mounting plate. One end edge of the upper surface of the bottom plate is fixedly connected with a fixed base, and a driving motor is fixedly connected to the upper surface of the fixed base. A conveying mechanism is installed on one side of the second mounting plate, and the conveying mechanism is used for conveying paper tubes. A transmission mechanism is installed on the upper surface of the bottom plate. In the paper tube marking device disclosed by the present invention, the rotation of the rotating cylinder drives the pressing rod to rotate around one end of the fixed rod. During the continuous rotation of the pressing rod, the pressing rod continuously lifts the marking belt so that the marking block on the outer wall of the marking belt approaches the inner wall of the marked paper tube. The marking block is provided with characters and marks, and the marking block continuously prints the characters and marks on the inner wall of the marked paper tube, achieving the effect of marking on the inner wall of the marked paper tube.

Description

Technical Field

[0001] The present invention relates to the technical field of paper tube marking, and particularly relates to a paper tube marking device. Background Art

[0002] In production, marking is to carry out markings such as words and pictures on products according to relevant national regulations or the management needs of enterprises themselves, such as production date, expiration date, product number, etc. This process is called marking. A marking machine is a general concept, which is mainly divided into several types: mechanical, pneumatic, laser, and electro-corrosion. Pneumatic: controlled by a computer, the printing needle makes high-frequency impact movements under the action of compressed air, so as to print marks with a certain depth on the workpiece. The characteristics of the marks are relatively large depth, and delicate patterns, trademarks, and words can be engraved. It is mainly used to print fixed trademarks.

[0003] Paper tubes are applied in various industries, such as tubes for the chemical fiber industry, tubes for the film industry, tubes for the printing industry, tubes for the paper industry, tubes for the leather industry, tubes for food packaging, tubes for the construction industry, tubes for the exhibition industry, etc. The types of paper tubes are also diverse. The demand for paper tube marking is extremely large. When using a general paper tube marking machine, it can only mark the outer wall of the paper tube. After the paper tube is used later, various materials continuously wear the outer wall of the paper tube, causing wear to the marking content on the outside of the paper tube, making it difficult to check the marking content of the paper tube and unable to trace the model and production information of the paper tube. Therefore, it cannot meet the actual needs. Summary of the Invention

[0004] In order to overcome the technical problems that when using a general paper tube marking machine, it can only mark the outer wall of the paper tube. After the paper tube is used later, various materials continuously wear the outer wall of the paper tube, causing wear to the marking content on the outside of the paper tube, making it difficult to check the marking content of the paper tube and unable to trace the model and production information of the paper tube, the present invention provides a paper tube marking device.

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] A paper tube marking device includes a bottom plate. The upper surface of the bottom plate is fixedly connected with a first mounting plate. The upper surface of the bottom plate is fixedly connected with a second mounting plate. One end edge of the upper surface of the bottom plate is fixedly connected with a fixed base, and a driving motor is fixedly connected to the upper surface of the fixed base;

[0007] A conveying mechanism is installed on one side of the second mounting plate, and the conveying mechanism is used for conveying paper tubes;

[0008] A transmission mechanism is installed on the upper surface of the bottom plate, and the transmission mechanism is used for clamping paper tubes.

[0009] The conveying mechanism includes a plurality of conveying rollers rotatably connected to one side of the second mounting plate. One end of each conveying roller is fixedly connected with a driven wheel. On the other side of the second mounting plate, two conveying motors are fixedly connected. One end of the output shaft of the conveying motor is fixedly connected with a driving wheel. A marking paper tube is arranged on the upper surface of the conveying rollers.

[0010] By placing the marking paper tube on the conveying rollers and starting the conveying motor, the driven wheels on both sides are driven to rotate by the rotation of the conveying motor, causing the plurality of conveying rollers to rotate and forwardly convey the marking paper tube, achieving the effect of starting automatic feeding.

[0011] As a preferred technical solution of the present invention, the transmission mechanism includes a slide rail fixedly connected to the upper surface of the bottom plate. Two sliders are slidably connected inside the slide rail. One end of the output shaft of the transmission motor is fixedly connected with a threaded rod. One end of the threaded rod is threadedly connected with a fixed block. The top of the fixed block is fixedly connected with a mounting frame.

[0012] One end of the threaded rod is provided with a clamping mechanism for abutting against the marking paper tube.

[0013] One end of the mounting frame is provided with a rolling mechanism for stabilizing the marking paper tube.

[0014] One side of the mounting frame is provided with a linkage mechanism for providing a pre-tightening force for the rolling mechanism.

[0015] One side of the mounting frame is provided with a rotating mechanism for internal transmission of the marking paper tube.

[0016] The clamping mechanism includes an auxiliary block threadedly connected to one end of the threaded rod. The upper surface of the auxiliary block is fixedly connected with a connecting block. One side of the connecting block is fixedly connected with a clamping block.

[0017] By starting the transmission motor, driving the threaded rod to rotate, the fixed block and the slider slide towards one side of the marking paper tube. Due to the symmetrical design of the threaded rod, the auxiliary block slides towards one side of the marking paper tube, and the other end of the marking paper tube is abutted by the connecting block and the clamping block, abuting one end of the marking paper tube to achieve the effect of restricting the position of the marking paper tube.

[0018] As a preferred technical solution of the present invention, the rolling mechanism includes a sliding rod slidably connected to the top end of the mounting frame. The bottom end of the sliding rod is fixedly connected with a lifting frame. One end of the sliding rod is sleeved with a return spring. The bottom end of the lifting frame is rotatably connected with a pressing wheel. One side of the lifting frame is fixedly connected with a plug rod.

[0019] The linkage mechanism includes a rotating plate rotatably connected to one side of the mounting frame. A sliding groove is provided at one end of the rotating plate. One end of the rotating plate is rotatably connected to a connecting rod, and one side of the fixed block is rotatably connected to a linkage rod.

[0020] By sliding the fixed block towards one side of the labeling paper tube, when one end of the linkage rod contacts one side of the first mounting plate, the linkage rod rotates, driving the connecting rod to move upward, driving the rotating plate to rotate, causing the insertion rod to slide inside the sliding groove, causing the lifting frame and the sliding rod to slide downward, compressing the return spring, and making the pressing wheel contact the upper surface of the labeling paper tube, achieving the effect of fixing the position of the labeling paper tube and preventing the labeling paper tube from rolling.

[0021] As a preferred technical solution of the present invention, the rotating mechanism includes a fixed rod fixedly connected to one side of the mounting frame. One end of the conveying roller is fixedly connected to a transmission wheel, and one end of the fixed rod is rotatably connected to a rotating cylinder;

[0022] A labeling mechanism is installed at one end of the fixed rod, and the labeling mechanism marks on the inner wall of the labeling paper tube.

[0023] The labeling mechanism includes a mounting ring fixedly connected to one end of the fixed rod. A labeling belt is provided on the outer wall of the mounting ring. A plurality of labeling blocks are fixedly connected to the outer wall of the labeling belt. One end of the rotating cylinder is fixedly connected to a pressing rod. A plurality of sliding friction blocks are provided on one side of the labeling belt, and a plurality of fixed friction blocks are provided at the edge of one end of the fixed rod.

[0024] The fixed block is fixedly connected to the slider, the auxiliary block is fixedly connected to the slider, the pressing rod is inserted into the inner side of the labeling belt, and the fixed friction block contacts the sliding friction block.

[0025] The insertion rod slides inside the sliding groove. The connecting rod and the linkage rod are slidably connected. The transmission wheel contacts the rotating cylinder, and the driving wheel contacts the driven wheel.

[0026] By making the rotating cylinder contact the transmission wheel, the rotation of the transmission wheel drives the rotation of the rotating cylinder. The rotation of the rotating cylinder drives the pressing rod to rotate around one end of the fixed rod. Since the pressing rod is inserted into the inner side of the labeling belt, during the continuous rotation of the pressing rod, the pressing rod continuously lifts the labeling belt, making the labeling blocks on the outer wall of the labeling belt approach the inner wall of the labeling paper tube. The labeling blocks are provided with characters and marks, and the labeling blocks continuously print the characters and marks on the inner wall of the labeling paper tube, achieving the effect of marking on the inner wall of the labeling paper tube. The design of a plurality of labeling blocks makes the design of characters and marks more flexible and convenient for replacing the labeling content.

[0027] Furthermore, due to the design of the fixed friction block and the sliding friction block, during the rotation of the pressing rod, friction occurs between the fixed friction block and the sliding friction block, stabilizing the position of the marking belt and preventing it from rotating with the pressing rod, thus avoiding blurred or incorrect markings inside the marking area.

[0028] Compared with the prior art, the beneficial effects that the present invention can achieve are as follows:

[0029] 1. The rotation of the driving wheel drives the rotation of the rotating cylinder, and the rotation of the rotating cylinder drives the pressing rod to rotate around one end of the fixed rod. Since the pressing rod is inserted into the inner side of the marking belt, during the continuous rotation of the pressing rod, the pressing rod continuously lifts the marking belt, bringing the marking block on the outer wall of the marking belt close to the inner wall of the marking paper tube. The marking block is provided with characters and marks, and the marking block continuously prints the characters and marks on the inner wall of the marking paper tube, achieving the effect of marking on the inner wall of the marking paper tube.

[0030] 2. The fixed block slides towards one side of the marking paper tube. One end of the linkage rod contacts one side of the first mounting plate, causing the linkage rod to rotate, driving the connecting rod to move upward, driving the rotating plate to rotate, causing the insertion rod to slide inside the sliding groove, causing the lifting frame and the sliding rod to slide downward, compressing the return spring, and bringing the pressing wheel into contact with the upper surface of the marking paper tube, achieving the effect of fixing the position of the marking paper tube and preventing the marking paper tube from rolling. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a front view structural schematic diagram of a paper tube marking device proposed by the present invention.

[0032] Figure 2 is a rear view structural schematic diagram of a paper tube marking device proposed by the present invention.

[0033] Figure 3 is a partial structural schematic diagram of a paper tube marking device proposed by the present invention.

[0034] Figure 4 is a sectional structural schematic diagram of a paper tube marking device proposed by the present invention.

[0035] Figure 5 is an internal structural schematic diagram of a paper tube marking device proposed by the present invention.

[0036] Figure 6 is a structural schematic diagram of the fixed rod of a paper tube marking device proposed by the present invention.

[0037] Figure 7 is a structural schematic diagram of the driving wheel of a paper tube marking device proposed by the present invention.

[0038] Figure 8Schematic diagram of the marking belt structure of a paper tube marking device proposed by the present invention.

[0039] Among them: 1. Bottom plate; 2. First mounting plate; 3. Second mounting plate; 4. Marked paper tube; 5. Conveyor roller; 6. Mounting frame; 7. Fixed block; 8. Threaded rod; 9. Driving motor; 10. Fixed base; 11. Slide rail; 12. Slide block; 13. Rotating cylinder; 14. Rotating plate; 15. Sliding groove; 16. Driving wheel; 17. Linking rod; 18. Connecting rod; 19. Fixed rod; 20. Auxiliary block; 21. Connecting block; 22. Clamping block; 23. Pressing wheel; 24. Lifting frame; 25. Return spring; 26. Sliding rod; 27. Pressing rod; 28. Marking belt; 29. Mounting ring; 30. Fixed friction block; 31. Marking block; 32. Driven wheel; 33. Conveyor motor; 34. Driving wheel; 35. Sliding friction block. Detailed implementation manners

[0040] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all belong to the protection scope of the present invention. The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified.

[0041] A paper tube marking device disclosed by the present invention is mainly applied to the situation where in the use of a general paper tube marking machine, it can only mark the outer wall of the paper tube. After the paper tube is used later, various materials of the materials continuously wear the outer wall of the paper tube, causing wear to the marked content on the outer wall of the paper tube, making it difficult to check the marked content of the paper tube and unable to trace the model and production information of the paper tube.

[0042] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 7 , a paper tube marking device includes a bottom plate 1, a first mounting plate 2 is fixedly connected to the upper surface of the bottom plate 1, a second mounting plate 3 is fixedly connected to the upper surface of the bottom plate 1, a fixed base 10 is fixedly connected to one end edge of the upper surface of the bottom plate 1, and a driving motor 9 is fixedly connected to the upper surface of the fixed base 10;

[0043] A conveying mechanism is installed on one side of the second mounting plate 3, and the conveying mechanism is used for conveying the paper tube;

[0044] A driving mechanism is installed on the upper surface of the bottom plate 1, and the driving mechanism is used for clamping the paper tube.

[0045] The conveying mechanism includes a plurality of conveying rollers 5 rotatably connected to one side of the second mounting plate 3, one end of the conveying roller 5 is fixedly connected to a driven wheel 32, the other side of the second mounting plate 3 is fixedly connected to two conveying motors 33, one end of the output shaft of the conveying motor 33 is fixedly connected to a driving wheel 34, and a marking paper tube 4 is provided on the upper surface of the conveying roller 5.

[0046] It should be noted that one end of the conveying roller 5 is rotatably connected to the second mounting plate 3 , and the other end of the conveying roller 5 is rotatably connected to the first mounting plate 2 . The driven wheel 32 is installed on one end of the conveying roller 5 close to the second mounting plate 3 .

[0047] In this embodiment, the marking paper tube 4 is placed on the conveying roller 5, and the conveying motor 33 is started. The driving wheel 34 is in contact with the driven wheel 32, and power is transmitted through the friction between the surfaces. The conveying motor 33 rotates to drive the driven wheels 32 on both sides to rotate. Since the driving wheel 34 on the conveying motor 33 is located between the driven wheels 32 on both sides, it can drive the driven wheels 32 on both sides to rotate in the same direction, so that multiple conveying rollers 5 rotate. When marking the marking paper tube 4, the two conveying motors 33 are turned off to stop the rotation of the marking paper tube 4, and the marking paper tube 4 is conveyed forward to start the automatic feeding effect.

[0048] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 In a preferred embodiment, the transmission mechanism includes a slide rail 11 fixedly connected to the middle position of the upper surface of the base plate 1 near the fixed base 10. Two sliders 12 are slidably connected inside the slide rail 11. One end of the output shaft of the transmission motor 9 is fixedly connected to a threaded rod 8. The end of the threaded rod 8 near the transmission motor 9 is threadedly connected to a fixed block 7. The top of the fixed block 7 is fixedly connected to a mounting bracket 6.

[0049] A clamping mechanism is installed on the end of the threaded rod 8 away from the transmission motor 9, and the clamping mechanism is used to support the marking paper tube 4;

[0050] One end of the mounting frame 6 is located above the marking paper tube 4 and is provided with a rolling mechanism for stabilizing the marking paper tube 4;

[0051] A linkage mechanism is installed on one side of the mounting frame 6, and the linkage mechanism is used to provide pre-tightening force for the rolling mechanism;

[0052] A rotating mechanism is installed on one side of the mounting frame 6, and the rotating mechanism is used for internal transmission of the marking paper tube 4.

[0053] The clamping mechanism includes an auxiliary block 20 threadedly connected to the end of the threaded rod 8 away from the transmission motor 9. The upper surface of the auxiliary block 20 is fixedly connected to a connecting block 21, and one side of the connecting block 21 is fixedly connected to a clamping block 22.

[0054] In this embodiment, the driving motor 9 is started to drive the threaded rod 8 to rotate, causing the fixed block 7 and the slider 12 to slide toward one side of the marking paper tube 4. Since the thread directions at both ends of the threaded rod 8 are opposite, the auxiliary block 20 slides toward one side of the marking paper tube 4, and the other end of the marking paper tube 4 is abutted through the connecting block 21 and the clamping block 22, and one end of the marking paper tube 4 is abutted, achieving the effect of restricting the position of the marking paper tube 4.

[0055] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 5 In a preferred embodiment, the rolling mechanism includes a sliding rod 26 slidably connected to the top of the mounting frame 6 above the marking paper tube 4. The bottom end of the sliding rod 26 is fixedly connected to a lifting frame 24. One end of the sliding rod 26 is sleeved with a return spring 25. The bottom end of the lifting frame 24 is rotatably connected to a pressing wheel 23, and one side of the lifting frame 24 is fixedly connected to a plug rod.

[0056] The linkage mechanism includes a rotating plate 14 rotatably connected to one side of the mounting frame 6. A sliding groove 15 is provided at one end of the rotating plate 14. One end of the rotating plate 14 is rotatably connected to a connecting rod 18, and one side of the fixed block 7 is rotatably connected to a linkage rod 17.

[0057] In this embodiment, the fixed block 7 slides toward one side of the marking paper tube 4. During this process, one end of the linkage rod 17 continuously approaches the first mounting plate 2 until one end of the linkage rod 17 contacts the first mounting plate 2. By contacting one side of the first mounting plate 2 with one end of the linkage rod 17, the linkage rod 17 rotates, driving the connecting rod 18 to move upward, driving the rotating plate 14 to rotate, causing the plug rod to slide inside the sliding groove 15, causing the lifting frame 24 and the sliding rod 26 to slide downward, compressing the return spring 25, and bringing the pressing wheel 23 into contact with the upper surface of the marking paper tube 4, achieving the effect of fixing the position of the marking paper tube 4 and preventing the marking paper tube 4 from rolling.

[0058] Refer to Figure 1 、 Figure 2 、 Figure 6 and Figure 8 In a preferred embodiment, the rotating mechanism includes a fixed rod 19 fixedly connected to one side of the mounting frame 6. One end of the conveying roller 5 close to the first mounting plate 2 is fixedly connected to a transmission wheel 16, and one end of the fixed rod 19 is rotatably connected to a rotating cylinder 13;

[0059] A marking mechanism is installed at one end of the fixed rod 19, and the marking mechanism marks on the inner wall of the marking paper tube 4.

[0060] The marking mechanism includes a mounting ring 29 fixedly connected to one end of the fixed rod 19, a marking belt 28 is provided on the outer wall of the mounting ring 29, and a plurality of marking blocks 31 are fixedly connected to the outer wall of the marking belt 28. A pressing rod 27 is fixedly connected to one end of the rotating cylinder 13, a plurality of sliding friction blocks 35 are provided on one side of the marking belt 28, and a plurality of fixed friction blocks 30 are provided on the edge of one end of the fixed rod 19.

[0061] The fixed block 7 is fixedly connected to the slider 12 , the auxiliary block 20 is fixedly connected to the slider 12 , the pressing rod 27 is inserted into the inner side of the marking belt 28 , and the fixed friction block 30 is in contact with the sliding friction block 35 .

[0062] The insertion rod slides inside the sliding groove 15 , the connecting rod 18 and the linkage rod 17 are slidably connected, the transmission wheel 16 contacts the rotating cylinder 13 , and the driving wheel 34 contacts the driven wheel 32 .

[0063] In this embodiment, during the sliding of the fixed block 7 toward one side of the marking paper tube 4, the rotating cylinder 13 contacts the transmission wheel 16, and the rotation of the transmission wheel 16 drives the rotating cylinder 13 to rotate. The rotation of the rotating cylinder 13 drives the pressing rod 27 to rotate around one end of the fixed rod 19. Since the pressing rod 27 is inserted into the inner side of the marking belt 28, during the continuous rotation of the pressing rod 27, the pressing rod 27 continuously lifts the marking belt 28 so that the marking block 31 on the outer wall of the marking belt 28 is close to the inner wall of the marking paper tube 4. Text and marks are provided on the marking block 31. The marking block 31 continuously prints the text and marks on the inner wall of the marking paper tube 4, which has the effect of marking on the inner wall of the marking paper tube 4. The design of multiple marking blocks 31 makes the design of text and marks more flexible and convenient for changing the marking content.

[0064] Furthermore, due to the design of the fixed friction block 30 and the sliding friction block 35, during the rotation of the pressing rod 27, the fixed friction block 30 and the sliding friction block 35 rub against each other, so that the position of the marking belt 28 is stable and does not rotate with the pressing rod 27, so that the marking inside will not have blurred text or errors.

[0065] Working principle: When in use, place the marking paper tube 4 on the conveying roller 5, start the conveying motor 33, the conveying motor 33 rotates to drive the driven wheels 32 on both sides to rotate, so that multiple conveying rollers 5 rotate, and the marking paper tube 4 is conveyed forward, starting the automatic feeding effect, starting the transmission motor 9, driving the threaded rod 8 to rotate, so that the fixed block 7 and the slider 12 slide to one side of the marking paper tube 4. Due to the symmetrical design of the threaded rod 8, the auxiliary block 20 slides to one side of the marking paper tube 4, and the other end of the marking paper tube 4 is supported by the connecting block 21 and the clamping block 22, and the marking paper tube 4 is supported. The fixing block 7 slides toward one side of the marking paper tube 4, and contacts one side of the first mounting plate 2 through one end of the linkage rod 17, so that the linkage rod 17 rotates, driving the connecting rod 18 to move upward, driving the rotating plate 14 to rotate, and causing the insertion rod to slide inside the sliding groove 15, causing the lifting frame 24 and the sliding rod 26 to slide downward, compressing the return spring 25, and causing the squeezing wheel 23 to contact the upper surface of the marking paper tube 4, thereby fixing the position of the marking paper tube 4 and preventing the marking paper tube 4 from rolling. When the fixing block 7 slides toward one side of the marking paper tube 4, the marking paper tube 4 is prevented from rolling. During the process, the rotating cylinder 13 contacts the transmission wheel 16, and the rotation of the transmission wheel 16 drives the rotating cylinder 13 to rotate. The rotation of the rotating cylinder 13 drives the pressing rod 27 to rotate around one end of the fixed rod 19. Since the pressing rod 27 is inserted into the inner side of the marking belt 28, during the continuous rotation of the pressing rod 27, the pressing rod 27 continuously lifts the marking belt 28 so that the marking block 31 on the outer wall of the marking belt 28 is close to the inner wall of the marking paper tube 4. The marking block 31 is provided with text and marks. The marking block 31 continuously prints the text and marks on the inner wall of the marking paper tube 4, which plays a role in marking the paper. The effect of marking on the inner wall of the tube 4 and the design of multiple marking blocks 31 make the design of text and marks more flexible and convenient to change the marking content. Due to the design of the fixed friction block 30 and the sliding friction block 35, during the rotation of the pressing rod 27, the fixed friction block 30 and the sliding friction block 35 rub against each other, so that the position of the marking belt 28 is stable and does not rotate with the pressing rod 27, so that the inside of the marking will not have blurred writing and errors. Similarly, the transmission motor 9 is reversed, the marking paper tube 4 is loosened, and the marking paper tube 4 continues to be transported forward to continue marking the next marking paper tube 4.

[0066] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A paper tube marking device, comprising a bottom plate (1), characterized in that, The upper surface of the base plate (1) is fixedly connected to a first mounting plate (2), the upper surface of the base plate (1) is fixedly connected to a second mounting plate (3), one end edge of the upper surface of the base plate (1) is fixedly connected to a fixed base (10), and the upper surface of the fixed base (10) is fixedly connected to a transmission motor (9); A conveying mechanism is installed on one side of the second mounting plate (3), and the conveying mechanism is used to convey the paper tube; A transmission mechanism is installed on the upper surface of the base plate (1), and the transmission mechanism is used to clamp the paper tube; The conveying mechanism comprises a plurality of conveying rollers (5) rotatably connected to one side of the second mounting plate (3), one end of the conveying rollers (5) being fixedly connected to a driven wheel (32), the other side of the second mounting plate (3) being fixedly connected to two conveying motors (33), one end of the output shaft of the conveying motor (33) being fixedly connected to a driving wheel (34), and a marking paper tube (4) being provided on the upper surface of the conveying rollers (5); The transmission mechanism comprises a slide rail (11) fixedly connected to the upper surface of the base plate (1), two sliders (12) are slidably connected inside the slide rail (11), one end of the output shaft of the transmission motor (9) is fixedly connected to a threaded rod (8), one end of the threaded rod (8) is threadedly connected to a fixed block (7), and the top of the fixed block (7) is fixedly connected to a mounting frame (6); One end of the threaded rod (8) is provided with a clamping mechanism, which is used to support the marking paper tube (4); The clamping mechanism comprises an auxiliary block (20) threadedly connected to one end of the threaded rod (8), a connecting block (21) is fixedly connected to the upper surface of the auxiliary block (20), and a clamping block (22) is fixedly connected to one side of the connecting block (21); A rolling mechanism is installed at one end of the mounting frame (6), and the rolling mechanism is used to stabilize the marking paper tube (4); The rolling mechanism comprises a sliding rod (26) slidably connected to the top of the mounting frame (6), the bottom end of the sliding rod (26) is fixedly connected to the lifting frame (24), one end of the sliding rod (26) is sleeved with a return spring (25), the bottom end of the lifting frame (24) is rotatably connected to the extrusion wheel (23), and one side of the lifting frame (24) is fixedly connected to the insertion rod; A linkage mechanism is installed on one side of the mounting frame (6), and the linkage mechanism is used to provide a pre-tightening force for the rolling mechanism; A rotating mechanism is installed on one side of the mounting frame (6), and the rotating mechanism is used for internal transmission of the marking paper tube (4); The rotating mechanism comprises a fixed rod (19) fixedly connected to one side of the mounting frame (6), one end of the conveying roller (5) is fixedly connected to the transmission wheel (16), and one end of the fixed rod (19) is rotatably connected to the rotating cylinder (13); A marking mechanism is installed at one end of the fixing rod (19), and the marking mechanism marks the inner wall of the marking paper tube (4); The marking mechanism includes a mounting ring (29) fixedly connected to one end of a fixed rod (19). A marking belt (28) is provided on the outer wall of the mounting ring (29). A plurality of marking blocks (31) are fixedly connected to the outer wall of the marking belt (28). One end of the rotating cylinder (13) is fixedly connected to a pressing rod (27). A plurality of sliding friction blocks (35) are provided on one side of the marking belt (28). A plurality of fixed friction blocks (30) are provided at the edge of one end of the fixed rod (19). The linkage mechanism includes a rotating plate (14) rotatably connected to one side of a mounting frame (6). A sliding groove (15) is provided at one end of the rotating plate (14). One end of the rotating plate (14) is rotatably connected to a connecting rod (18). One side of the fixed block (7) is rotatably connected to a linkage rod (17). The fixed block (7) is fixedly connected to the slider (12). The auxiliary block (20) is fixedly connected to the slider (12). The pressing rod (27) is inserted into the inner side of the marking belt (28). The fixed friction block (30) is in contact with the sliding friction block (35). The insertion rod slides inside the sliding groove (15). The connecting rod (18) and the linkage rod (17) are slidably connected. The transmission wheel (16) is in contact with the rotating cylinder (13). The driving wheel (34) is in contact with the driven wheel (32).

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