Wire number printer

Abstract

The utility model discloses a wire number printer which comprises a main machine, a cover body, a printing assembly and a conveying assembly, the cover body is rotationally installed on the main machine and has a closing position and an opening position, and the printing assembly is installed on the main machine and used for printing ink on the surface of a wire number pipe. The conveying assembly is located on the upstream of the printing assembly in the moving direction of the line number pipe and comprises a conveying rubber roller, a floating rubber roller and a linkage structure, the conveying rubber roller is rotationally installed on the main machine, the floating rubber roller is rotationally installed on the linkage structure, and the linkage structure is installed on the main machine. The linkage structure is configured to be in linkage with the cover body in the process that the cover body moves from the opening position to the closing position and drive the floating rubber roller to be close to the conveying rubber roller so as to clamp the wire marking pipe, and the conveying rubber roller and the floating rubber roller rotate oppositely so as to be used for conveying the wire marking pipe to the printing assembly. According to the technical scheme, the wire marking pipe can be smoothly arranged in the wire marking printer, and the good printing effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of line number printing equipment, and particularly relates to a line number printer. BACKGROUND

[0002] The line number printer is also called a line number printing machine, and is abbreviated as a line number machine or a number printing machine. The line number printer adopts a thermal transfer printing technology, and printing precision can reach 300 dpi. The line number printer can print characters on materials such as PVC sleeves, heat-shrinkable tubes and adhesive labels. The line number printer is generally used for secondary line identification of electric control and power distribution equipment, is a special equipment for line identification of electric control, power distribution equipment and comprehensive wiring engineering, and can meet the needs of power plant, electric equipment factory, substation and power industry for line identification.

[0003] In the prior art, when the line number printer prints, the line number tube is pushed by rotation of a printing rubber roller. Because the friction between the printing rubber roller and the line number tube is limited, and in the case of long time or large resistance, the printing rubber roller may slip, so that the line number tube cannot be accurately pushed, which not only affects the consistency of the printing position, but also may damage the printing pattern and cause the printing information to accumulate. CONTENT OF THE UTILITY MODEL

[0004] Embodiments of the present application provide a line number printer, which can facilitate smooth tube feeding of the line number tube and ensure good printing effect.

[0005] In a first aspect, the embodiments of the present application provide a line number printer, which comprises a host, a cover, a printing assembly and a conveying assembly. The cover is rotationally installed on the host and has a closed position and an open position. The printing assembly is installed on the host and is used for printing ink on the surface of the line number tube. The conveying assembly is located upstream of the printing assembly in the moving direction of the line number tube. The conveying assembly comprises a conveying rubber roller, a floating rubber roller and a linkage structure. The conveying rubber roller is rotationally installed on the host. The floating rubber roller is rotationally installed on the linkage structure. The linkage structure is installed on the host. The linkage structure is configured to be linked with the cover and drive the floating rubber roller to move close to the conveying rubber roller to clamp the line number tube during movement of the cover from the open position to the closed position. The conveying rubber roller and the floating rubber roller rotate towards each other to convey the line number tube to the printing assembly.

[0006] In some embodiments, the cover is rotationally installed on the host about a direction perpendicular to the axial direction of the conveying rubber roller. The linkage structure is configured to be linked with the cover and positively actuated to drive the floating rubber roller to move close to the conveying rubber roller in the direction perpendicular to the axial direction of the conveying rubber roller during movement of the cover from the open position to the closed position.

[0007] In some embodiments, the cover includes a first rotating block; the linkage structure includes a second rotating block and a rubber roller mounting plate connected to the second rotating block, the rubber roller mounting plate being rotatably mounted to the main machine about a direction parallel to the axial direction of the conveying rubber roller, and the floating rubber roller being mounted to the rubber roller mounting plate; wherein the second rotating block is rotatably mounted to the main machine about a direction perpendicular to the axial direction of the conveying rubber roller, and during movement of the cover from the open position to the closed position, the first rotating block acts on the second rotating block and drives the second rotating block to rotate, so as to drive the rubber roller mounting plate to rotate relative to the main machine about the direction parallel to the axial direction of the conveying rubber roller, and further drive the floating rubber roller to approach the conveying rubber roller.

[0008] In some embodiments, the second rotating block includes a pressing portion and a driving portion, the pressing portion being rotatably mounted to the main machine, the pressing portion including a first end for contacting the first rotating block, and the driving portion being connected to a portion of the pressing portion away from the first end, and the driving portion being movably connected to the rubber roller mounting plate.

[0009] In some embodiments, the main machine includes a fixed column, an axial direction of the fixed column being parallel to the axial direction of the conveying rubber roller, and the rubber roller mounting plate being rotatably mounted to the fixed column about the fixed column.

[0010] In some embodiments, the main machine has a first guide portion, and the rubber roller mounting plate has a second guide portion, the first guide portion and the second guide portion cooperating to guide the rubber roller mounting plate to rotate about a rotation center of the rubber roller mounting plate; the first guide portion being located in a region between the rotation center of the rubber roller mounting plate and the conveying rubber roller.

[0011] In some embodiments, one of the first guide portion and the second guide portion is a guide column, and the other is a guide groove, the guide groove being in the shape of a circular arc with the rotation center of the rubber roller mounting plate as the center, and the guide column being arranged through the guide groove to guide the rubber roller mounting plate to rotate about the rotation center of the rubber roller mounting plate.

[0012] In some embodiments, the linkage structure further includes a linkage elastic member, and the second rotating block is movably connected to the rubber roller mounting plate through the linkage elastic member.

[0013] In some embodiments, the linkage structure is configured to gradually separate from the cover and move reversely during movement of the cover from the closed position to the open position, and further drive the floating rubber roller to move away from the conveying rubber roller in the direction perpendicular to the axial direction of the conveying rubber roller.

[0014] In some embodiments, the linkage structure further includes a reset elastic member, one end of the reset elastic member being connected to the main machine, and the other end of the reset elastic member being connected to a portion of the linkage structure on which the floating rubber roller is mounted.

[0015] In some embodiments, the conveying rubber roller comprises a first gear portion, and the floating rubber roller comprises a second gear portion; the yarn tube printing machine further comprises a driving assembly, the driving assembly comprising a driving motor and a transmission wheel set, the driving motor being connected to the transmission wheel set and configured to drive the transmission wheel set to rotate, so that the transmission wheel set drives the first gear portion and the second gear portion to rotate synchronously.

[0016] In some embodiments, when the floating rubber roller and the conveying rubber roller are used to clamp the yarn tube, the first gear portion and the second gear portion are in meshing engagement; the transmission wheel set comprises a first gear, the first gear being in meshing engagement with the first gear portion, or the first gear being in meshing engagement with the second gear portion, and the driving motor being connected to the first gear.

[0017] In some embodiments, when the floating rubber roller and the conveying rubber roller are used to clamp the yarn tube, the first gear portion and the second gear portion are spaced apart; the transmission wheel set comprises a second gear and a third gear in meshing engagement with each other, the second gear being in meshing engagement with the first gear portion, the third gear being in meshing engagement with the second gear portion, and the driving motor being connected to the second gear.

[0018] In some embodiments, the transmission wheel set comprises two fourth gears, one of the fourth gears being in meshing engagement with the first gear portion, and the other fourth gear being in meshing engagement with the second gear portion; the driving assembly comprises two driving motors, each of the driving motors being connected to one of the fourth gears, and the two driving motors driving the two fourth gears to rotate synchronously.

[0019] In some embodiments, the host machine comprises a machine housing, the machine housing having a conveying space, a tube placing groove and a tube moving groove in communication with the conveying space, the tube placing groove and the tube moving groove being in communication, and the floating rubber roller moving in the tube moving groove to approach or move away from the conveying rubber roller; the conveying rubber roller and the floating rubber roller are both arranged in the conveying space.

[0020] In some embodiments, the tube placing groove has a tube placing support surface, in the axial direction of the conveying rubber roller, the first gear portion and the second gear portion are both located below the tube placing support surface, and the distance between the first gear portion and the second gear portion is M, 0.5mm≤M≤20mm.

[0021] In some embodiments, the floating rubber roller has a first limit position and a second limit position, in the first limit position, the distance between the floating rubber roller and the conveying rubber roller is the largest, and in the second limit position, the distance between the floating rubber roller and the conveying rubber roller is the smallest; the floating rubber roller reciprocally moves between the first limit position and the second limit position by a stroke X1, 10mm≤X1≤12mm; and / or, in the second limit position, the radial distance between the floating rubber roller and the conveying rubber roller is X2, 0.1mm≤X2≤0.5mm.

[0022] The line number printer in the application comprises a host, a cover body, a printing assembly and a conveying assembly. When the cover body is in the closed position, the floating rubber roller of the conveying assembly can jointly clamp the line number tube with the conveying rubber roller to ensure that the floating rubber roller and the conveying rubber roller provide a certain pressure for the line number tube. When the floating rubber roller and the conveying rubber roller rotate towards each other, the corresponding direction friction force can be provided to drive the line number tube to run the tube, so that the line number tube has a certain initial speed, thereby reducing the tube feeding pressure of the printing assembly, facilitating smooth tube running, and the printing assembly can uniformly print at the corresponding position of the line number tube, realizing excellent printing effect. At the same time, the linkage structure can link the activities of the cover body and the floating rubber roller. When the cover body moves from the open position to the closed position, the activity of the floating rubber roller can be linked, thereby simplifying the manual operation steps of the line number printer and improving the working efficiency of the line number printer. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 It is a schematic diagram of the partial structure of the line number printer in the application in the open position;

[0025] Figure 2 It is a schematic diagram of the partial structure of the line number printer in the application in the open position; Figure 1

[0026] Figure 3 It is a schematic diagram of the partial structure of the line number printer in the application in the open position; Figure 2

[0027] Figure 4 It is a schematic diagram of the partial structure of the line number printer in the application in the open position;

[0028] Figure 5 It is a schematic diagram of the partial structure of the line number printer in the application in the open position;

[0029] Figure 6 It is a schematic diagram of the partial structure of the line number printer in the application in the open position; Figure 1

[0030] Figure 7 It is a schematic diagram of the partial structure of the line number printer in the application in the open position. Figure 6

[0031] Figure 8 It is a schematic diagram of the partial structure of the line number printer in the application in the open position; Figure 4 ​​​​​

[0032] Figure 9 For Figure 5 Enlarged view at D in Figure 1 ;

[0033] Reference Signs:

[0034] 100, thread number printer;

[0035] 1, main machine; 11, fixed column; 12, first guide part; 121, guide column; 13, machine shell; 131, pipe placing groove; 131a, pipe placing support surface; 132, thread moving groove;

[0036] 2, cover; 21, first rotating pressing block;

[0037] 3, printing assembly;

[0038] 4, conveying assembly; 41, conveying rubber roller; 411, first gear part; 42, floating rubber roller; 421, second gear part; 43, linkage structure; 431, second rotating pressing block; 431a, pressing part; 431b, driving part; 432, rubber roller mounting plate; 4321, second guide part; 4321a, guide groove; 433, linkage elastic member; 434, reset elastic member;

[0039] 5, driving assembly; 51, transmission wheel set;

[0040] 200, thread number pipe. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0042] The thread number printer is also called thread number printing machine, and is simply referred to as thread number machine or marking machine. The thread number printer adopts heat transfer printing technology, and the printing precision can reach 300 dpi. The thread number printer can print characters on materials such as PVC sleeve, heat shrink tube and adhesive label. The thread number printer is generally used for secondary wire identification of electric control and power distribution equipment, and is a special equipment for wire identification of electric control, power distribution equipment and comprehensive wiring engineering. The thread number printer can meet the needs of wire identification of power plants, electric equipment plants, substations and power industry.

[0043] The thread number printer in the prior art mainly pushes the thread number pipe by the rotation of the printing rubber roller during printing. Since the friction between the printing rubber roller and the thread number pipe is limited, and in the case of long time or large resistance, the printing rubber roller may slip, which leads to inaccurate pipe feeding, affects the consistency of the printing position, and may damage the printing pattern, resulting in the accumulation of printed information.

[0044] Please refer toFigures 1 to 3 In order to solve the above technical problems, the application provides a line printer 100, comprising: a host 1, a cover 2, a printing assembly 3 and a conveying assembly 4.

[0045] Specifically, the cover 2 is rotatably installed on the host 1 and has a closed position and an open position, the printing assembly 3 is installed on the host 1 and is used for printing ink on the surface of the line number tube 200, and the conveying assembly 4 is located upstream of the printing assembly 3 in the moving direction of the line number tube 200, wherein the conveying assembly 4 comprises a conveying rubber roller 41, a floating rubber roller 42 and a linkage structure 43, the conveying rubber roller 41 is rotatably installed on the host 1, the floating rubber roller 42 is rotatably installed on the linkage structure 43, the linkage structure 43 is installed on the host 1, the linkage structure 43 is configured to be linked with the cover 2 during the movement of the cover 2 from the open position to the closed position and drive the floating rubber roller 42 to move close to the conveying rubber roller 41 to clamp the line number tube 200, and the conveying rubber roller 41 and the floating rubber roller 42 rotate towards each other to convey the line number tube 200 to the printing assembly 3.

[0046] The line printer 100 in the application can clamp the line number tube 200 by the floating rubber roller 42 and the conveying rubber roller 41 when the cover 2 is in the closed position, so as to ensure that the floating rubber roller 42 and the conveying rubber roller 41 provide a certain pressure for the line number tube 200 and provide corresponding friction force in the direction of rotation of the floating rubber roller 42 and the conveying rubber roller 41 to drive the line number tube 200 to move, so that the line number tube 200 has a certain initial speed, thereby reducing the conveying pressure of the printing assembly 3 and facilitating smooth movement of the line number tube 200, the printing assembly 3 can uniformly print on the corresponding position of the line number tube 200 to achieve excellent printing effect, and at the same time, the linkage structure 43 can link the activities of the cover 2 and the floating rubber roller 42, so that the activity of the floating rubber roller 42 can be linked when the cover 2 moves from the open position to the closed position, thereby simplifying the manual operation steps of the line printer 100 and improving the working efficiency of the line printer 100.

[0047] In actual application, the host 1 provides a mounting basis for various components of the line printer 100, and the host 1 integrates a corresponding electrical control system while providing relevant structures for mounting other components, so as to ensure that the line printer 100 can normally operate.

[0048] Correspondingly, the cover 2 has a closed position in which the cover 2 is closed on and cooperates with the main machine 1, and the cover 2 can cover the number tube 200 and other internal components in the closed position, effectively preventing external interference and ensuring normal operation of the number printer 100. The cover 2 also has an open position in which the cover 2 is arranged at an angle with the main machine 1, and the cover 2 rotates relative to the main machine 1 to switch between the two positions. When the cover 2 is in the closed position, the distance between the conveying rubber roller 41 and the floating rubber roller 42 of the conveying assembly 4 is the smallest, and when the cover 2 is in the open position, the distance between the conveying rubber roller 41 and the floating rubber roller 42 is the largest, thereby realizing clamping and loosening of the number tube 200.

[0049] In the embodiment of the present application, the conveying assembly 4 is located upstream of the printing assembly 3 in the moving direction of the number tube 200. It can be understood that, in the printing process of the number printer 100, the number tube 200 is divided into a printed end and an unprinted end, and the conveying assembly 4 is located on the unprinted side. In some embodiments, the rotating speed of the conveying assembly 4 is slightly greater than that of the printing assembly 3, thereby further ensuring smooth feeding of the conveying assembly 4. The conveying assembly 4 is used to provide a certain initial speed for the number tube 200 and ensure that the number tube 200 can move smoothly to the printing assembly 3. In this way, it is ensured that the printed number tube 200 can be conveyed out of the main machine 1 without being stretched, so as not to damage the printed number tube 200, and the printing effect of the number tube 200 is better.

[0050] In addition, the linkage structure 43 can drive the floating rubber roller 42 to move when the cover 2 moves. This process does not require manual adjustment of the operation of the floating rubber roller 42 and the conveying rubber roller 41, thereby simplifying the operation and improving the automation level of the number printer 100.

[0051] Please refer to Figures 2 to 3 , the cover 2 is rotatably installed on the main machine 1 about a direction perpendicular to the axial direction of the conveying rubber roller 41; and the linkage structure 43 is configured to move forward in linkage with the cover 2 during movement of the cover 2 from the open position to the closed position, so as to drive the floating rubber roller 42 to move close to the conveying rubber roller 41 about the direction perpendicular to the axial direction of the conveying rubber roller 41. It can be understood that the linkage structure 43 can move forward in linkage with the cover 2, and the forward movement herein refers to that at least part of the linkage structure 43 can move in the closing direction of the cover 2. In this way, it is ensured that the floating rubber roller 42 can quickly respond to the action of the cover 2. The linkage effect is achieved through the connection relationship on the mechanical structure, which can improve the consistency of each linkage process, reduce unstable factors caused by electrically controlled linkage, and enhance the reliability of the number printer 100.

[0052] In some embodiments, please refer to Figures 4 to 5, the axial direction of the conveying rubber roller 41 is a vertical direction, the rotating direction of the cover body 2 is a rotating direction around a horizontal direction, the linkage structure 43 is driven by the cover body 2, and therefore at least part of the linkage structure 43 also rotates around the horizontal direction, and the floating rubber roller 42 approaches the conveying rubber roller 41 along the horizontal direction. It can be understood that part of the linkage structure 43 in the application has a movement stroke around the horizontal direction, and part has a movement stroke along the horizontal direction. The linkage structure 43 can realize the conversion of the direction during the driving process, and has a driving effect on the floating structure.

[0053] Please refer to Figure 3 The cover body 2 comprises a first rotating pressing block 21. The linkage structure 43 comprises a second rotating pressing block 431 and a rubber roller mounting plate 432 connected to the second rotating pressing block 431. The rubber roller mounting plate 432 is rotatably mounted on the main machine 1 around a direction parallel to the axial direction of the conveying rubber roller 41. The floating rubber roller 42 is mounted on the rubber roller mounting plate 432. The second rotating pressing block 431 is rotatably mounted on the main machine 1 around a direction perpendicular to the axial direction of the conveying rubber roller 41. During the movement of the cover body 2 from the open position to the closed position, the first rotating pressing block 21 acts on the second rotating pressing block 431 and drives the second rotating pressing block 431 to rotate, so as to drive the rubber roller mounting plate 432 to rotate relative to the main machine 1 around the direction parallel to the axial direction of the conveying rubber roller 41, and then drive the floating rubber roller 42 to approach the conveying rubber roller 41.

[0054] Specifically, the first rotating pressing block 21 can rotate around the direction perpendicular to the axial direction of the conveying rubber roller 41 together with the cover body 2. The second rotating pressing block 431 is also rotatably mounted on the main machine 1 around the direction perpendicular to the axial direction of the conveying rubber roller 41. In the embodiment of the application, the first rotating pressing block 21 has a movement stroke along the direction approaching the second rotating pressing block 431. During the movement of the cover body 2 from the open position to the closed position, the first rotating pressing block 21 gradually approaches and abuts against the second rotating pressing block 431. After the abutment, the first rotating pressing block 21 continues to rotate and drives the second rotating pressing block 431 to rotate, until the cover body 2 is closed on the main machine 1. During this process, since the second rotating pressing block 431 is connected with the rubber roller mounting plate 432, the movement of the second rotating pressing block 431 can drive the movement of the rubber roller mounting plate 432. The rubber roller mounting plate 432 further drives the floating rubber roller 42 to approach the conveying rubber roller 41.

[0055] It can be understood that the rubber roller mounting plate 432 can provide stable support for the installation of the floating rubber roller 42. The rubber roller mounting plate 432 is rotatably mounted on the main machine 1, which is convenient for stably conveying the floating rubber roller 42 to the position close to the conveying rubber roller 41. In this way, the cooperation between various components is efficient, which is convenient for realizing a more precise mechanical linkage mechanism of the thread printing machine 100, simplifies the operation of the user, and improves the reliability and printing quality of the thread printing machine 100.

[0056] In some embodiments, the cover 2 comprises a cover plate, a shaft body, and a first rotating pressing block 21 connected to the shaft body and protruding radially from the shaft body, facilitating contact with the second rotating pressing block 431, the first rotating pressing block 21 rotating in an axial direction parallel to the second rotating pressing block 431, facilitating driving of the second rotating pressing block 431 by the first rotating pressing block 21.

[0057] It can be understood that, in order to realize different movement paths between the second rotating pressing block 431 and the rubber roller mounting plate 432, the linkage structure 43 further comprises a reversing linkage member for converting the movement stroke of the second rotating pressing block 431 rotating around the horizontal direction into the movement stroke of the rubber roller mounting plate 432 rotating around the vertical direction, the reversing linkage member being any one of a linkage assembly, a gear assembly, a sprocket assembly, etc., as long as it can achieve the reversing effect, which is not limited in the present application.

[0058] Please refer to Figure 3 The second rotating pressing block 431 comprises a pressing portion 431a and a driving portion 431b, the pressing portion 431a being rotatably mounted on the main machine 1, the pressing portion 431a comprising a first end for contacting the first rotating pressing block 21, the driving portion 431b being connected to a portion of the pressing portion 431a away from the first end, and the driving portion 431b being movably connected to the rubber roller mounting plate 432. Specifically, the pressing portion 431a is fixed to the main machine 1 by a rotating shaft or the like, so that the pressing portion 431a can rotate in linkage with the first rotating pressing block 21 around a direction perpendicular to the axial direction of the conveying rubber roller 41, thereby ensuring that the first end of the pressing portion 431a can contact the first rotating pressing block 21 when the cover 2 moves to the closed position and rotate with the first rotating pressing block 21, ensuring the instantaneity and reliability of the triggering action and maintaining the stability of the cord marking printer 100.

[0059] Correspondingly, the driving portion 431b can convert the rotation of the pressing portion 431a into the movement of the rubber roller mounting plate 432, the rotation of the pressing portion 431a having a movement component along the direction perpendicular to the axis of the conveying rubber roller 41, and at least a portion of the driving portion 431b having a reversing function, which can convert the rotation of the pressing portion 431a around the axial direction perpendicular to the conveying rubber roller 41 into the rotation of the rubber roller mounting plate 432 around the axial direction parallel to the conveying rubber roller 41, achieving the driving effect on the floating rubber roller 42 and ensuring the clamping effect on the cord tube 200, facilitating smooth tube feeding.

[0060] Please refer to Figures 4 to 5The host 1 comprises a fixed column 11, the axial direction of the fixed column 11 is parallel to the axial direction of the conveying rubber roller 41, and the rubber roller mounting plate 432 is rotatably mounted on the fixed column 11. Specifically, the fixed column 11 is fixedly mounted on a part of the host 1 and does not move with the movement of the rubber roller mounting plate 432, and the axial direction of the fixed column 11 is parallel to the axial direction of the conveying rubber roller 41, so that the rubber roller mounting plate 432 connected thereto can rotate around the direction parallel to the axial direction of the conveying rubber roller 41, and further drive the floating rubber roller 42 to move close to the conveying rubber roller 41. The arrangement of the fixed column 11 can ensure that the rubber roller mounting plate 432 can remain stable during rotation around its axial direction, reduce shaking or deviation during rotation, thereby ensuring the accuracy of the floating rubber roller 42 during movement, and maintaining the stability of the movement of the line number tube 200 during subsequent movement of the floating rubber roller 42 and the conveying rubber roller 41.

[0061] In other embodiments, the rubber roller mounting plate 432 can be movably mounted on the host 1 through a guide rail structure or other similar movable structure. In the embodiment of the present application, the fixed column 11 is arranged to enable the entire linkage structure 43 to effectively utilize the space parallel to the axial direction of the conveying rubber roller 41, reducing the occupation of the position of the host 1, and facilitating the miniaturization of the line number printer 100.

[0062] Please continue to refer to Figures 4 to 5 The host 1 has a first guide portion 12, and the rubber roller mounting plate 432 has a second guide portion 4321, and the first guide portion 12 cooperates with the second guide portion 4321 to guide the rotation of the rubber roller mounting plate 432 around the rotation center of the rubber roller mounting plate 432; the first guide portion 12 is located in the region between the rotation center of the rubber roller mounting plate 432 and the conveying rubber roller 41. It can be understood that, in order to further realize the accurate driving of the rubber roller mounting plate 432 to the floating rubber roller 42, the host 1 is provided with the first guide portion 12, and the rubber roller mounting plate 432 is provided with the second guide portion 4321, wherein the cooperation between the first guide portion 12 and the second guide portion 4321 can ensure that the rubber roller mounting plate 432 can maintain an accurate movement path when rotating around its rotation center, and can always remain on the predetermined movement path during multiple rotations, thereby ensuring that the floating rubber roller 42 can accurately move to the corresponding position to realize the clamping of the line number tube 200. In the embodiment of the present application, the cooperation of the first guide portion 12 and the second guide portion 4321 can drive the floating rubber roller 42 to move along the preset path to the corresponding position, thereby improving the stability and reliability of the floating rubber roller 42 during movement.

[0063] Further, since the first guide part 12 is located between the rotation center of the rubber roller mounting plate 432 and the conveying rubber roller 41, the first guide part 12 and the corresponding second guide part 4321 do not occupy too much space, which is conducive to the miniaturization design of the line marking printer 100 as a whole. In some embodiments, the first guide part 12 is provided as a sliding rail, and the second guide part 4321 is provided as a sliding block corresponding to the sliding rail, and the guiding effect of the rubber roller mounting plate 432 is achieved in a sliding fit manner. In other embodiments, other guiding methods can also be used, which are not limited in the present application.

[0064] Specifically, please continue to refer to Figures 4 to 5 , one of the first guide part 12 and the second guide part 4321 is a guide column 121, and the other is a guide groove 4321a. The guide groove 4321a is in the form of a circular arc with the rotation center of the rubber roller mounting plate 432 as the center, and the guide column 121 penetrates the guide groove 4321a to guide the rotation of the rubber roller mounting plate 432 around the rotation center of the rubber roller mounting plate 432. It should be noted that the guide column 121 is fixedly installed on the main machine 1, and its position will not change with the change of the position of the rubber roller mounting plate 432, and can be used as a reference point for its movement, and has good stability. Correspondingly, the second guide part 4321 includes a circular arc-shaped guide groove 4321a, the guide column 121 penetrates the guide groove 4321a and at least partially extends to the outside of the guide groove 4321a, which ensures that the rubber roller mounting plate 432 can move according to the circular arc shape of the guide groove 4321a when rotating around its rotation center, effectively reducing the risk of shaking or deviation of the rubber roller mounting plate 432 during movement, and correspondingly improving the stability and reliability of the floating rubber roller 42 during movement.

[0065] Further, in combination with the above-mentioned embodiments, the main machine 1 includes a fixed column 11, the floating rubber roller 42 rotates along the axial direction of the fixed column 11, and the axial direction of the fixed column 11 and the axial direction of the guide column 121 are both parallel to the axial direction of the conveying rubber roller 41. In this embodiment, the guide column 121 is at least partially movably connected with the rubber roller mounting plate 432, and to some extent also plays a supporting effect on the rubber roller mounting plate 432. The fixed column 11 and the guide column 121 support and fix the rubber roller mounting plate 432 along the two ends of the rubber roller mounting plate 432, which not only ensures the accurate sliding of the rubber roller mounting plate 432 along a certain movement path, but also plays a supporting and protecting effect on the rubber roller mounting plate 432, thereby enhancing the stability of the line marking printer 100 as a whole.

[0066] Please refer to Figures 3 to 5, the linkage structure 43 further comprises a linkage elastic piece 433, and the second rotating pressing block 431 is movably connected with the rubber roller mounting plate 432 through the linkage elastic piece 433. Specifically, the linkage elastic piece 433 has an elastic movement stroke along the length direction thereof, and provides elastic connection between the second rotating pressing block 431 and the rubber roller mounting plate 432. It can be understood that the movement directions of the second rotating pressing block 431 and the rubber roller mounting plate 432 are different, the second rotating pressing block 431 rotates around the direction perpendicular to the conveying rubber roller 41, and the rubber roller mounting plate 432 rotates around the direction parallel to the conveying rubber roller 41. The two are connected through the linkage elastic piece 433 to convert the distance of the second rotating pressing block 431 rotating around the direction perpendicular to the conveying rubber roller 41 into the elastic force of the linkage elastic piece 433, and the elastic force has a component around the direction parallel to the conveying rubber roller 41, which can pull the rubber roller mounting plate 432 to move, thereby realizing the conveying of the floating rubber roller 42.

[0067] In addition, the linkage elastic piece 433 has a certain elasticity, which ensures that there is a certain relative displacement between the second rotating pressing block 431 and the rubber roller mounting plate 432. Therefore, when the cover 2 is located at the closed position, the distance between the floating rubber roller 42 and the conveying rubber roller 41 also has a certain adjustment space. On the one hand, the relative adjustment space between the floating rubber roller 42 and the conveying rubber roller 41 can facilitate the floating rubber roller 42 and the conveying rubber roller 41 to adapt to more different sizes of the cable number tube 200, thereby improving the versatility of the cable number printer 100. On the other hand, the relative adjustment space between the floating rubber roller 42 and the conveying rubber roller 41 enables the cable number printer 100 to better adapt to the requirements under different working conditions. For example, when the diameter of the cable number tube 200 changes or encounters greater resistance, the linkage elastic piece 433 can automatically adapt and adjust the position of the floating rubber roller 42 to ensure that the clamping force is always appropriate, thereby ensuring that the cable number tube 200 can move smoothly.

[0068] In addition, the linkage structure 43 is configured to gradually separate from the cover 2 and move reversely during the movement of the cover 2 from the closed position to the open position, thereby driving the floating rubber roller 42 to move away from the conveying rubber roller 41 in the direction perpendicular to the axial direction of the conveying rubber roller 41. It can be understood that in the embodiment of the present application, the floating rubber roller 42 can also move between the clamping position and the release position with the movement of the cover 2 between the closed position and the open position. Specifically, when the cover 2 is in the closed position, the floating rubber roller 42 is located at the clamping position, and at this time, the distance between the floating rubber roller 42 and the conveying rubber roller 41 is the shortest. When the cover 2 is in the open position, the floating rubber roller 42 is located at the release position, and at this time, the distance between the floating rubber roller 42 and the conveying rubber roller 41 is the farthest. In the embodiment of the present application, the linkage structure 43 can be used to realize the bidirectional movement of the floating rubber roller 42, thereby reducing the manual operation of the cable number tube 200 before and after printing, further enhancing the automation level of the cable number printer 100, and improving the reliability of the cable number printer 100.

[0069] It can be understood that, in some embodiments, the linkage structure 43 comprises a second rotating block 431, a rubber roller mounting plate 432, and a linkage elastic member 433. It can be understood that, when the floating rubber roller 42 is in the clamping position, the linkage elastic member 433 is in a stretched state, and thus, when the cover 2 is gradually opened, the linkage elastic member 433 has a movement stroke from the stretched state to the original state, and the linkage elastic member 433 can drive the floating rubber roller 42 to return from the clamping position to the release position, thereby achieving bidirectional driving of the floating rubber roller 42.

[0070] In some other embodiments, please refer to Figures 3 to 5 , the linkage structure 43 further comprises a reset elastic member 434, one end of which is connected to the main machine 1 and the other end of which is connected to the part of the linkage structure 43 on which the floating rubber roller 42 is mounted. It can be understood that, when the cover 2 moves between the closed position and the open position, the floating rubber roller 42 can also move between the clamping position and the release position along with the movement of the cover 2. Specifically, when the cover 2 is in the closed position, the floating rubber roller 42 is in the clamping position, at which time the floating rubber roller 42 is closest to the conveying rubber roller 41, and when the cover 2 is in the open position, the floating rubber roller 42 is in the release position, at which time the floating rubber roller 42 is farthest from the conveying rubber roller. The reset elastic member 434 is used to drive the floating rubber roller 42 to move from the clamping position to the release position, so as to reduce the manual operation of the thread number tube 200 during the post-printing process, further enhance the automation level of the thread number printer 100, and improve the reliability of the thread number printer 100.

[0071] In some embodiments, the linkage structure 43 simultaneously comprises the reset elastic member 434 and the linkage elastic member 433, and the reset elastic member 434 and the linkage elastic member 433 are located at both ends of the rubber roller mounting plate 432. It can be understood that, according to the above-mentioned embodiments, the linkage elastic member 433 can also have a certain reset effect, and the linkage elastic member 433 and the reset elastic member 434 jointly act on the rubber roller mounting plate 432, which can ensure that the floating rubber roller 42 can move to the release position more quickly and stably. Even if one of the reset elastic member 434 and the linkage elastic member 433 weakens, the other can also have a complementary effect, so that the thread number printer 100 can maintain good stability during long-term use.

[0072] Please refer to Figure 4 or Figure 7, the conveying rubber roller 41 comprises a first gear portion 411, and the floating rubber roller 42 comprises a second gear portion 421; the line pipe 200 printer further comprises a driving assembly 5, the driving assembly 5 comprises a driving motor and a transmission wheel set 51, the driving motor is connected to the transmission wheel set 51 and is used to drive the transmission wheel set 51 to rotate, so that the transmission wheel set 51 drives the first gear portion 411 and the second gear portion 421 to rotate synchronously. In the embodiment of the present application, the driving motor is used to provide stable power output, and the power is transmitted to the first gear portion 411 and the second gear portion 421 through the transmission wheel set 51, the first gear portion 411 is used to drive the conveying rubber roller 41 to rotate, and the second gear portion 421 is used to drive the floating rubber roller 42 to rotate, thereby ensuring that the conveying rubber roller 41 and the floating rubber roller 42 can rotate synchronously, and the smoothness of the line pipe 200 sent by the conveying rubber roller 41 and the floating rubber roller 42 is improved.

[0073] In some embodiments, when the cover 2 is in the closed position and the floating rubber roller 42 and the conveying rubber roller 41 are used to clamp the line pipe 200, the first gear portion 411 and the second gear portion 421 are also engaged; the transmission wheel set 51 comprises a first gear, the first gear is engaged with the first gear portion 411, or the first gear is engaged with the second gear portion 421, and the driving motor is connected with the first gear. It can be understood that, in the embodiment of the present application, when the first gear portion 411 and the second gear portion 421 are engaged, the floating rubber roller 42 and the conveying rubber roller 41 can rotate synchronously.

[0074] The transmission wheel set 51 comprises a first gear, the first gear can be engaged with the first gear portion 411, or the first gear is engaged with the second gear portion 421. In some embodiments, the driving motor transmits power to the first gear portion 411 through the first gear, thereby driving the conveying rubber roller 41 to rotate, and since the first gear portion 411 is engaged with the second gear portion 421, the floating rubber roller 42 also rotates synchronously; in other embodiments, the driving motor transmits power to the second gear portion 421 through the first gear, thereby driving the floating rubber roller 42 to rotate. Since the first gear portion 411 is engaged with the second gear portion 421, the conveying rubber roller 41 also rotates synchronously. In the above-mentioned embodiments, either the first gear portion 411 or the second gear portion 421 is a driving gear, and the other is a driven gear, the driving motor can drive the driven gear to rotate by driving the driving gear, thereby reducing the number of driving motors for driving the driven gear and the number of gears of the transmission wheel set 51 connected therewith, thereby simplifying the design of the driving assembly 5 and facilitating subsequent maintenance and repair.

[0075] In other embodiments, please refer to Figures 5 to 7, the first gear part 411 and the second gear part 421 are spaced apart when the floating rubber roller 42 and the conveying rubber roller 41 are used to clamp the line number tube 200; the transmission wheel set 51 comprises a second gear and a third gear which are engaged with each other, the second gear is engaged with the first gear part 411, the third gear is engaged with the second gear part 421, and the driving motor is connected with the second gear. It can be understood that when the line number printer 100 is used to print the line number tube 200 with a large outer diameter, the distance between the floating rubber roller 42 and the conveying rubber roller 41 is large, and in some cases, the first gear part 411 and the second gear part 421 are spaced apart, at this time, in order to realize the driving of the opposite rotation of the first gear part 411 and the second gear part 421, the transmission wheel set 51 comprises a second gear and a third gear which are engaged with each other, it can be understood that the second gear rotates forward, thereby driving the first gear part 411 and the third gear to rotate reversely, the reverse rotation of the third gear further drives the forward rotation of the second gear part 421, thereby ensuring the opposite rotation between the first gear part 411 and the second gear part 421. The driving motor drives the rotation of the third gear, the first gear part 411 and the second gear part 421 through the driving of the second gear, thereby simplifying the design of the driving assembly 5 and facilitating the subsequent maintenance and repair.

[0076] In some embodiments, the transmission wheel set 51 comprises two fourth gears, one of which is engaged with the first gear part 411, and the other of which is engaged with the second gear part 421; the driving assembly 5 comprises two driving motors, each of which is connected with one of the fourth gears, and the two driving motors drive the two fourth gears to rotate synchronously. It can be understood that the driving assembly 5 comprises two motors which drive two fourth gears respectively, one of the fourth gears is engaged with the first gear part 411, and the other of the fourth gears is engaged with the second gear part 421, the two fourth gears do not interfere with each other, and the rotation speed of the conveying rubber roller 41 and the floating rubber roller 42 is ensured to be consistent by adjusting the two driving motors. In the embodiments of the application, redundancy is provided by setting two driving motors and two fourth gears, even if one of the driving motors or gears fails, the other can still work, thereby reducing the transmission failure caused by single motor failure and improving the reliability and fault tolerance performance of the line number printer 100.

[0077] Please refer to Figure 1 、 Figure 6 and Figure 7The host 1 comprises a casing 13 having a conveying space and a pipe placing groove 131 and a floating groove 132 communicating with the conveying space, the pipe placing groove 131 and the floating groove 132 communicate, and the floating rubber roller 42 moves in the floating groove 132 to approach or move away from the conveying rubber roller 41; the conveying rubber roller 41 and the floating rubber roller 42 are both arranged in the conveying space. In the embodiment, the casing 13 is used to provide an internal mounting space, and the casing 13 is used in cooperation with the cover 2 to reduce the influence of the outside on the internal structure of the line number printer 100. Specifically, the pipe placing groove 131 is used to place the line number pipe 200 to support the movement of the line number pipe 200, and the pipe placing groove 131 can facilitate user operation. In actual use, only the line number pipe 200 needs to be placed in the pipe placing groove 131, and the pipe placing groove 131 can guide the line number pipe 200 to smoothly enter the conveying assembly 4. It can be understood that the floating rubber roller 42 has a moving stroke relative to the casing 13. In order not to hinder the movement of the floating rubber roller 42, the casing 13 is provided with the floating groove 132, the floating rubber roller 42 is arranged in the floating groove 132 and located in the conveying space, and the floating rubber roller 42 can move along the floating groove 132 to clamp and release the line number pipe 200.

[0078] Further, referring to Figure 7 The pipe placing groove 131 has a pipe placing support surface 131a, and the first gear part 411 and the second gear part 421 are both located below the pipe placing support surface 131a in the axial direction of the conveying rubber roller 41, and the distance is M, 0.5mm≤M≤20mm. It should be noted that in some embodiments, the heights of the first gear part 411 and the second gear part 421 are equal, and at this time the distance M is defined as the distance from the pipe placing support surface 131a to the upper side of the first gear part 411 or the second gear part 421 in the axial direction of the conveying rubber roller 41. In other embodiments, the heights of the first gear part 411 and the second gear part 421 are not equal, and at this time the distance M is defined as the distance from the upper side of the gear part closer to the pipe placing support surface 131a of the first gear part 411 or the second gear part 421 to the pipe placing support surface 131a in the axial direction of the conveying rubber roller 41.

[0079] Further, in the embodiment, 0.5mm≤M≤20mm, which can increase the gap between the line number pipe 200 and the first gear part 411 or the second gear part, thereby reducing the risk of the line number pipe 200 being wound into the corresponding first gear part 411 or second gear part 421 of the conveying assembly 4, and ensuring smooth pipe feeding.

[0080] In addition, referring to Figure 8 and Figure 9, the floating rubber roller 42 has a first limit position and a second limit position, at the first limit position, the distance between the floating rubber roller 42 and the conveying rubber roller 41 is maximum, at the second limit position, the distance between the floating rubber roller 42 and the conveying rubber roller 41 is minimum, the stroke of the floating rubber roller 42 reciprocating between the first limit position and the second limit position is X1, 10mm≤X1≤12mm, and / or, at the second limit position, the radial distance between the floating rubber roller 42 and the conveying rubber roller 41 is X2, 0.1mm≤X2≤0.5mm. It can be understood that when the cover 2 is opened, the linkage structure 43 drives the floating rubber roller 42 to move to the first limit position, so that the cable number tube 200 can be smoothly put in or taken out, at this time, the distance between the floating rubber roller 42 and the conveying rubber roller 41 is larger, which avoids excessive clamping of the cable number tube 200 and ensures that the cable number tube 200 can be stably released; when the cover 2 is closed, the linkage structure 43 drives the floating rubber roller 42 to move to the second limit position, so that the floating rubber roller 42 is close to the conveying rubber roller 41, clamps the cable number tube 200 and pushes it through the conveying space, the stroke of the floating rubber roller 42 reciprocating between the first limit position and the second limit position is X1, and 10mm≤X1≤12mm, the stroke range ensures that the floating rubber roller 42 can flexibly adjust the distance between the floating rubber roller 42 and the conveying rubber roller 41 under different conditions, which can meet the clamping requirement of the cable number tube 200 and ensure the stability of the cable number tube 200 in the transmission process.

[0081] In another embodiment, at the second limit position, the radial distance between the floating rubber roller 42 and the conveying rubber roller 41 is X2, 0.1mm≤X2≤0.5mm, which ensures that the floating rubber roller 42 has a certain gap with the conveying rubber roller 41 at the second limit position, avoids the friction between the floating rubber roller 42 and the conveying rubber roller 41, and at the same time, the gap is not too large and can clamp and convey the cable number tube 200.

[0082] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction relationship of two elements, unless another definite limitation. For ordinary skilled in the art, the above terms can be understood according to the specific meaning of the utility model.

[0083] In addition, the terms "first", "second", etc. are used only for descriptive purposes and do not connote or imply relative importance or an ordering between or among the indicated technical features. Accordingly, a feature identified as "first" or "second" can include at least one of the feature, explicitly or implicitly. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0084] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "on", "above" and "on the surface" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0085] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present application and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0086] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A thread number printer (100), characterized by, The yarn printer (100) comprises: a main body (1); a cover (2) rotatably mounted on the main body (1) and having an open position and a closed position; a printing assembly (3) mounted on the main body (1) and configured to print ink on a surface of a yarn tube (200); and a conveying assembly (4) located upstream of the printing assembly (3) in a moving direction of the yarn tube (200); wherein the conveying assembly (4) comprises a conveying rubber roller (41), a floating rubber roller (42) and a linkage structure (43), the conveying rubber roller (41) is rotatably mounted on the main body (1), the floating rubber roller (42) is rotatably mounted on the linkage structure (43), the linkage structure (43) is mounted on the main body (1), the linkage structure (43) is configured to be linked with the cover (2) and drive the floating rubber roller (42) to move close to the conveying rubber roller (41) to clamp the yarn tube (200) during movement of the cover (2) from the open position to the closed position, and the conveying rubber roller (41) and the floating rubber roller (42) are configured to rotate towards each other to convey the yarn tube (200) to the printing assembly (3). The cover (2) is rotatably mounted on the main body (1) about a direction perpendicular to an axial direction of the conveying rubber roller (41); 2. The thread counter printer (100) of claim 1, characterized in that, The linkage structure (43) is configured to be linked with the cover (2) and positively actuated to drive the floating rubber roller (42) to move close to the conveying rubber roller (41) about the direction perpendicular to the axial direction of the conveying rubber roller (41) during movement of the cover (2) from the open position to the closed position.

3. The yarn printer (100) according to claim 1, wherein: the cover (2) comprises a first rotary block (21); the linkage structure (43) comprises a second rotary block (431) and a rubber roller mounting plate (432) connected to the second rotary block (431), the rubber roller mounting plate (432) is rotatably mounted on the main body (1) about a direction parallel to an axial direction of the conveying rubber roller (41), and the floating rubber roller (42) is mounted on the rubber roller mounting plate (432); wherein the second rotary block (431) is rotatably mounted on the main body (1) about a direction perpendicular to the axial direction of the conveying rubber roller (41), and during movement of the cover (2) from the open position to the closed position, the first rotary block (21) acts on the second rotary block (431) and drives the second rotary block (431) to rotate, so as to drive the rubber roller mounting plate (432) to rotate relative to the main body (1) about the direction parallel to the axial direction of the conveying rubber roller (41), and further drive the floating rubber roller (42) to move close to the conveying rubber roller (41). ​ 4. The thread counter printer (100) of claim 3, wherein, The second rotating pressing block (431) comprises a pressing part (431a) and a driving part (431b), the pressing part (431a) is rotatably installed on the main machine (1), the pressing part (431a) comprises a first end for contacting the first rotating pressing block (21), the driving part (431b) is connected to a part of the pressing part (431a) away from the first end, and the driving part (431b) is movably connected with the rubber roller mounting plate (432).

5. The thread counter printer (100) of claim 3, wherein, The main machine (1) comprises a fixed column (11), the axial direction of the fixed column (11) is parallel to the axial direction of the conveying rubber roller (41), and the rubber roller mounting plate (432) is rotatably installed on the fixed column (11) around the fixed column (11).

6. The thread counter printer (100) of claim 3, wherein, The main machine (1) has a first guide part (12), the rubber roller mounting plate (432) has a second guide part (4321), and the first guide part (12) cooperates with the second guide part (4321) to guide the rotation of the rubber roller mounting plate (432) around the rotation center of the rubber roller mounting plate (432). The first guide part (12) is located in a region between the rotation center of the rubber roller mounting plate (432) and the conveying rubber roller (41).

7. The thread counter printer (100) of claim 6, wherein, One of the first guide part (12) and the second guide part (4321) is a guide column (121), and the other is a guide groove (4321a), the guide groove (4321a) is in the shape of a circular arc with the rotation center of the rubber roller mounting plate (432) as the center, and the guide column (121) penetrates the guide groove (4321a) to guide the rotation of the rubber roller mounting plate (432) around the rotation center of the rubber roller mounting plate (432).

8. The thread counter printer (100) of claim 3, wherein, The linkage structure (43) further comprises a linkage elastic member (433), and the second rotating pressing block (431) is movably connected with the rubber roller mounting plate (432) through the linkage elastic member (433).

9. The thread counter printer (100) of claim 1, wherein, The linkage structure (43) is configured to gradually separate from the cover (2) and reversely move during the movement of the cover (2) from the closed position to the open position, thereby driving the floating rubber roller (42) to move away from the conveying rubber roller (41) in a direction perpendicular to the axial direction of the conveying rubber roller (41).

10. The thread counter printer (100) of claim 1, wherein, The linkage structure (43) further comprises a reset elastic member (434), one end of the reset elastic member (434) is connected to the main machine (1), and the other end is connected to a part of the linkage structure (43) on which the floating rubber roller (42) is installed.

11. The thread label printer (100) of claim 1, wherein, The conveying rubber roller (41) comprises a first gear part (411), and the floating rubber roller (42) comprises a second gear part (421). The line number printer (100) further comprises a driving assembly (5), the driving assembly (5) comprising a driving motor and a transmission wheel set (51), the driving motor being connected to the transmission wheel set (51) and used to drive the transmission wheel set (51) to rotate, so that the transmission wheel set (51) drives the first gear part (411) and the second gear part (421) to rotate synchronously.

12. The line number printer (100) according to claim 11, characterized in that, when the floating rubber roller (42) and the conveying rubber roller (41) are used to clamp the line number tube (200), the first gear part (411) and the second gear part (421) are in meshing; the transmission wheel set (51) comprises a first gear, the first gear is in meshing with the first gear part (411), or the first gear is in meshing with the second gear part (421), and the driving motor is connected to the first gear.

13. The line number printer (100) according to claim 11, characterized in that, when the floating rubber roller (42) and the conveying rubber roller (41) are used to clamp the line number tube (200), the first gear part (411) and the second gear part (421) are spaced apart; the transmission wheel set (51) comprises a second gear and a third gear in meshing with each other, the second gear is in meshing with the first gear part (411), the third gear is in meshing with the second gear part (421), and the driving motor is connected to the second gear.

14. The line number printer (100) according to claim 11, characterized in that, the transmission wheel set (51) comprises two fourth gears, one of the fourth gears is in meshing with the first gear part (411), and the other fourth gear is in meshing with the second gear part (421); the driving assembly (5) comprises two driving motors, each of the driving motors is connected to one of the fourth gears, and the two driving motors drive the two fourth gears to rotate synchronously.

15. The thread counter printer (100) of claim 11, wherein, the main machine (1) comprises a machine shell (13), the machine shell (13) has a conveying space, a tube placing groove (131) and a line moving groove (132) which are in communication with the conveying space, the tube placing groove (131) and the line moving groove (132) are in communication, and the floating rubber roller (42) moves in the line moving groove (132) to approach or move away from the conveying rubber roller (41); the conveying rubber roller (41) and the floating rubber roller (42) are both arranged in the conveying space.

16. The thread counter printer (100) of claim 15, wherein, the tube placing groove (131) has a tube placing support surface (131a), in the axial direction of the conveying rubber roller (41), the first gear part (411) and the second gear part (421) are both located below the tube placing support surface (131a) with a spacing M, and 0.5mm≤M≤20mm.

17. The line number printer (100) according to claim 1, characterized in that, The floating rubber roller (42) has a first limit position and a second limit position, at the first limit position, the distance from the floating rubber roller (42) to the conveying rubber roller (41) is maximum, at the second limit position, the distance from the floating rubber roller (42) to the conveying rubber roller (41) is minimum; The floating rubber roller (42) reciprocatingly moves a stroke X1 of 10mm≤X1≤12mm between the first limit position and the second limit position; and / or, At the second limit position, the radial distance between the floating rubber roller (42) and the conveying rubber roller (41) is X2, 0.1mm≤X2≤0.5mm.

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