Double-roller synchronous counter-rotating device and thread label printer with same

Abstract

The application relates to a double-roller synchronous opposite-rotation device and a thread number printer with the same, wherein the double-roller synchronous opposite-rotation device comprises a fixed plate, a first mounting base, a second mounting base, a double-layer driven wheel, a single-layer driven wheel and a driving wheel; the first mounting base is mounted on the fixed plate, and a first roller is rotatably arranged on the first mounting base; the double-layer driven wheel is arranged on the side of the fixed plate away from the first mounting base, and the double-layer driven wheel is connected with the first roller through a first transmission shaft; the second mounting base is arranged on the same side of the fixed plate as the first mounting base and is oppositely arranged relative to the first mounting base, and a second roller is arranged on the second mounting base; the single-layer driven wheel is meshingly connected with the double-layer driven wheel, and the single-layer driven wheel is connected with the second roller through a second transmission shaft; the driving wheel is rotatably arranged on the fixed plate and is connected with a driving device of the thread number printer; and the driving wheel is also meshingly connected with the double-layer driven wheel.

Description

Technical Field

[0001] This application relates to the field of line marking printer technology, and more particularly to a dual-roller synchronous opposite-direction rotation device and a line marking printer having the same. Background Technology

[0002] Wire marking printers are used to print markings on various lines such as wires and cables. Traditional wire marking printers mostly rely on two drive units to drive the rollers. Specifically, one drive unit rotates in the forward direction while the other rotates in the reverse direction, causing the two rollers to rotate in opposite directions. However, in actual operation, errors inevitably occur in the rotation speeds of the two drive units, resulting in the rollers not rotating synchronously. This asynchronous rotation causes relative movement between the wires or cables and the sleeves on the wires or cables, leading to uneven tension and deformation. Consequently, the printed markings may deviate in position, reducing the printing accuracy of the wire marking printer. Summary of the Invention

[0003] In view of this, this application proposes a dual-roller synchronous opposite-direction rotation device, comprising: a fixed plate, a first mounting base, a second mounting base, a double-layer driven wheel, a single-layer driven wheel, and a driving wheel;

[0004] The first mounting base is mounted on the fixed plate, and the first mounting base is rotatably equipped with a first roller;

[0005] The double-layer driven wheel is located on the side of the fixed plate away from the first mounting base, and the double-layer driven wheel is connected to the first roller through the first transmission shaft;

[0006] The second mounting base is located on the same side of the fixed plate as the first mounting base and is opposite to the first mounting base. The second mounting base is provided with a second roller.

[0007] The single-layer driven wheel is meshed with the double-layer driven wheel, and the single-layer driven wheel is connected to the second roller through the second transmission shaft;

[0008] The drive wheel is rotatably mounted on the fixed plate and connected to the drive unit of the line number printer;

[0009] The driving wheel is also meshed with the double-layer driven wheel so that when the driving device drives the driving wheel to rotate, it synchronously drives the double-layer driven wheel and the single-layer driven wheel to rotate at the same speed but in opposite directions, thereby driving the first roller and the second roller to rotate synchronously in opposite directions.

[0010] In one possible implementation, the double-layer driven wheel includes: an upper gear and a lower gear;

[0011] The upper gear and the lower gear are coaxially fixed; the upper gear is meshed with the driving gear, and the lower gear is meshed with a single-layer driven gear.

[0012] In one possible implementation, the number of teeth on the driving gear is equal to the number of teeth on the upper gear, and the number of teeth on the single-layer driven gear is equal to the number of teeth on the lower gear.

[0013] In one possible implementation, a pivot is provided on the fixed plate;

[0014] The rotating shaft passes through the fixed plate and is located on the central axis of the fixed plate. The drive wheel is fixedly mounted at one end of the rotating shaft.

[0015] One possible implementation also includes: an installation unit;

[0016] The mounting part is fitted onto the outer wall of the rotating shaft and is fixedly connected to the fixing plate.

[0017] In one possible implementation, both the first mounting base and the second mounting base include: a connector and a bearing housing;

[0018] One end of the connector is provided with a fixing part, and the connector is connected to the mounting part through the fixing part. The other end of the connector is fixedly connected to the bearing housing.

[0019] In one possible implementation, the main body of the bearing housing has a U-shaped structure, with the openings of the two bearing housings facing each other toward opposite sides, and the first roller is rotatably disposed within the opening of the bearing housing.

[0020] In one possible implementation, the main body of the fixing part has a stepped structure.

[0021] According to another aspect of this application, a line number printer is provided, including any of the above-described dual-roller synchronous opposite-rotation device.

[0022] Beneficial effects of this application

[0023] When the drive device drives the driving wheel to rotate clockwise, the driving wheel drives the double-layer driven wheel to rotate, which in turn drives the single-layer driven wheel to rotate. According to the gear meshing principle, when the driving wheel rotates clockwise, since the driving wheel is meshed with the double-layer driven wheel, the double-layer driven wheel rotates counterclockwise. At the same time, the double-layer driven wheel meshes with the single-layer driven wheel. At this time, the double-layer driven wheel drives the single-layer driven wheel to rotate clockwise. The double-layer driven wheel drives the first roller to rotate counterclockwise through the first connecting shaft, and the single-layer driven wheel drives the second roller to rotate clockwise through the second connecting shaft, thereby realizing the synchronous and opposite rotation of the first roller and the second roller.

[0024] This application utilizes a gear meshing design between a driving wheel, a double-layer driven wheel, and a single-layer driven wheel. A single drive unit drives the driving wheel to rotate, which in turn synchronously drives the double-layer driven wheel and the single-layer driven wheel to rotate at the same speed but in opposite directions. Ultimately, this drives the first roller and the second roller to rotate synchronously in opposite directions. This solves the problem in traditional wire marking printers where the first and second rollers cannot rotate synchronously due to the inconsistent speeds of the two drive units. The synchronous, opposite-direction rotation of the first and second rollers provides continuous and stable power for the wire or cable, preventing the sheath on the wire or cable from being stretched and deformed due to uneven tension. This ensures that the wire marking printer can accurately print the markings at the predetermined positions on the wire or cable sheath during the printing process, improving the printing accuracy and quality of the wire marking printer. Furthermore, this application's rotating device uses one drive unit instead of the traditional two drive units. The driving wheel is driven by a single drive unit, and the synchronous, opposite-direction rotation of the first roller and the second roller is achieved through gear meshing between the driving wheel, the double-layer driven wheel, and the single-layer driven wheel. This simplifies the transmission structure of the rotating device and reduces the manufacturing cost of the wire marking printer.

[0025] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0026] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0027] Figure 1 An exploded view of the dual-roller synchronous opposite-rotation device of this application is shown;

[0028] Figure 2 Show Figure 1 A magnified view of a portion of the image;

[0029] Figure 3 This diagram shows the main structure of the dual-roller synchronous opposite-direction rotation device of this application;

[0030] Figure 4 This is a front view of the dual-roller synchronous opposite-rotation device of this application.

[0031] Fixed plate—100; Rotating shaft—110; Mounting part—120; First mounting seat—210; First drive shaft—220; First roller—230; Second mounting seat—310; Second drive shaft—320; Second roller—330; Connecting part—211; Bearing seat—212; Fixed part—213; Double-layer driven wheel—410; Upper gear—411; Lower gear—412; Single-layer driven wheel—420; Driving wheel—430. Detailed Implementation

[0032] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0033] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0036] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0037] This application proposes a dual-roller synchronous opposite-direction rotation device, such as... Figures 1 to 4As shown, it includes: a fixed plate 100, a first mounting base 210, a second mounting base 310, a double-layer driven wheel 410, a single-layer driven wheel 420, and a driving wheel 430; the first mounting base 210 is mounted on the fixed plate 100, and a first roller 230 is rotatably mounted on the first mounting base 210; the double-layer driven wheel 410 is located on the side of the fixed plate 100 away from the first mounting base 210, and the double-layer driven wheel 410 is connected to the first roller 230 through a first transmission shaft 220; the second mounting base 310 and the first mounting base 210 are located on the same side of the fixed plate 100 and are opposite to the first mounting base 210. The mounting base 310 is provided with a second roller 330; a single-layer driven roller 420 is meshed with a double-layer driven roller 410, and the single-layer driven roller 420 is connected to the second roller 330 through a second transmission shaft 320; the driving roller 430 is rotatably mounted on the fixed plate 100 and is connected to the drive device of the line number printer. The driving roller 430 is also meshed with the double-layer driven roller 410, so that when the drive device drives the driving roller 430 to rotate, it synchronously drives the double-layer driven roller 410 and the single-layer driven roller 420 to rotate at the same speed but in opposite directions, thereby driving the first roller 230 and the second roller 330 to rotate synchronously in opposite directions.

[0038] It should be noted that the fixed plate 100 is suitable for providing an installation and support platform for the overall rotating device. The first mounting base 210 is suitable for mounting the first roller 230, ensuring that the first roller 230 can be stably mounted on the fixed plate 100 and can rotate freely on the first mounting base 210. The second mounting base 310 is suitable for mounting the second roller 330, ensuring that the second roller 330 can be stably mounted on the fixed plate 100 and can rotate freely on the second mounting base 310. The second mounting base 310 and the first mounting base 210 are arranged opposite to each other, so that the installation positions of the two rollers are symmetrically arranged. The first roller 230 and the second roller 330 are suitable for clamping and conveying wires or cables. One end of the first drive shaft 220 passes through the first mounting base 210. The first roller 230 is sleeved on the first drive shaft 220. The end of the first drive shaft 220 away from the first roller 230 passes through the fixed plate 100 and is connected to the double-layer driven wheel 410 for transmission. The double-layer driven wheel 410 transmits power through the first drive shaft 220. Rotational power is transmitted to the first roller 230; one end of the second drive shaft 320 passes through the second mounting base 310, and the second roller 330 is sleeved on the second drive shaft 320. The end of the second drive shaft 320 away from the second roller 330 passes through the fixing plate 100 and is connected to the single-layer driven wheel 420. The single-layer driven wheel 420 transmits rotational power to the second roller 330 through the second drive shaft 320; the driving wheel 430 meshes with the double-layer driven wheel 410, and the driving wheel 430 transmits the rotational power output by the drive device. Force is transmitted to the double-layer driven wheel 410, thereby driving the entire rotating device to operate; the double-layer driven wheel 410 receives the power transmitted by the driving wheel 430 and transmits the power to the first roller 230 through the first transmission shaft 220. At the same time, the double-layer driven wheel 410 meshes with the single-layer driven wheel 420. The single-layer driven wheel 420 receives the power transmitted by the double-layer driven wheel 410 and transmits the power to the second roller 330 through the second transmission shaft 320, causing the second roller 330 to rotate in the opposite direction to the first roller 230.

[0039] When the drive device drives the driving wheel 430 to rotate clockwise, the driving wheel 430 drives the double-layer driven wheel 410 to rotate, which in turn drives the single-layer driven wheel 420 to rotate. According to the gear meshing principle, when the driving wheel 430 rotates clockwise, since the driving wheel 430 is meshed with the double-layer driven wheel 410, the double-layer driven wheel 410 rotates counterclockwise. At the same time, the double-layer driven wheel 410 meshes with the single-layer driven wheel 420. At this time, the double-layer driven wheel 410 drives the single-layer driven wheel 420 to rotate clockwise. The double-layer driven wheel 410 drives the first roller 230 to rotate counterclockwise through the first connecting shaft, and the single-layer driven wheel 420 drives the second roller 330 to rotate clockwise through the second connecting shaft, thereby realizing the synchronous and opposite rotation of the first roller 230 and the second roller 330.

[0040] This application utilizes a gear meshing design between the driving wheel 430, the double-layer driven wheel 410, and the single-layer driven wheel 420. A single drive unit drives the driving wheel 430 to rotate, which in turn synchronously drives the double-layer driven wheel 410 and the single-layer driven wheel 420 to rotate at the same speed but in opposite directions. Ultimately, this drives the first roller 230 and the second roller 330 to rotate synchronously in opposite directions. This solves the problem in traditional wire marking printers where the first roller 230 and the second roller 330 cannot rotate synchronously due to the inconsistent speeds of the two drive units. The synchronous opposite rotation of the first roller 230 and the second roller 330 provides continuous and stable power for the transmission of wires or cables, preventing the sheaths on the wires or cables from being stretched and deformed due to uneven tension. This ensures that the wire marking printer can accurately print the markings on the predetermined positions on the wire or cable sheaths during the printing process, improving the printing accuracy and quality of the wire marking printer. Meanwhile, the rotating device of this application uses one driving device instead of two traditional driving devices. The driving wheel 430 is driven by a single driving device. The driving wheel 430, the double-layer driven wheel 410 and the single-layer driven wheel 420 are driven by gear meshing to realize the synchronous and opposite rotation of the first roller 230 and the second roller 330. This simplifies the transmission structure of the rotating device and reduces the manufacturing cost of the line number printer.

[0041] In one possible implementation, such as Figure 4 As shown, the double-layer driven wheel 410 includes an upper gear 411 and a lower gear 412; the upper gear 411 and the lower gear 412 are coaxially fixedly arranged; the upper gear 411 is meshed with the driving wheel 430, and the lower gear 412 is meshed with the single-layer driven wheel 420.

[0042] It should be noted that the coaxial design of the upper gear 411 and the lower gear 412 ensures that their rotational speeds are completely consistent, thereby achieving synchronous rotation of the first roller 230 and the second roller 330. This avoids sleeve stretching deformation and printing position deviation caused by speed differences. When the driving wheel 430 drives the upper gear 411 to rotate, the lower gear 412 rotates at the same speed, and the lower gear 412 accurately transmits this speed to the single-layer driven wheel 420, ensuring that the first roller 230 and the second roller 330 always rotate at the same speed during the rotation process. This provides a stable and uniform conveying speed for the wires or cables, avoiding wire or cable stretching deformation or positional deviation caused by roller speed differences, and ensuring the printing accuracy of the wire number printer.

[0043] In one possible implementation, the number of teeth on the driving gear 430 is equal to the number of teeth on the upper gear 411, and the number of teeth on the single-layer driven gear 420 is equal to the number of teeth on the lower gear 412. It should be noted that the design of the equal number of teeth on the driving wheel 430 and the upper gear 411 ensures that the upper gear 411 rotates at the same speed when the driving wheel 430 rotates. Since the upper gear 411 and the lower gear 412 are coaxially fixed, the lower gear 412 rotates at the same speed as the upper gear 411. The design of the equal number of teeth on the single-layer driven wheel 420 and the lower gear 412 ensures that the single-layer driven wheel 420 and the lower gear 412 rotate at the same speed. The gear design with equal number of teeth ensures that the rotation speeds of the first roller 230 connected to the double-layer driven wheel 410 and the second roller 330 connected to the single-layer driven wheel 420 are completely consistent, thereby achieving synchronous and opposite rotation between the first roller 230 and the second roller 330, reducing transmission errors caused by differences in the number of teeth, and improving the transmission accuracy of the entire device.

[0044] In one possible implementation, such as Figure 1 As shown, a rotating shaft 110 is provided on the fixed plate 100; the rotating shaft 110 is disposed through the fixed plate 100 and is located on the central axis of the fixed plate 100. The driving wheel 430 is fixedly disposed at one end of the rotating shaft 110; the length direction of the rotating shaft 110 is perpendicular to the plane where the fixed part 213 is located. The main body of the rotating shaft 110 has a cylindrical structure. One end of the rotating shaft 110 is fixedly connected to the driving wheel 430. The end of the rotating shaft 110 away from the driving wheel 430 is suitable for connection with the drive device. The output speed and torque of the drive device are accurately transmitted to the driving wheel 430 through the rotating shaft 110, ensuring that the rotation speed of the driving wheel 430 is consistent with the output speed of the drive device.

[0045] In one possible implementation, such as Figure 1 As shown, it also includes: a mounting part 120; the mounting part 120 is sleeved on the outer side wall of the rotating shaft 110 and fixedly connected to the fixing plate 100; the mounting part 120 has a hollow columnar structure, the mounting part 120 is disposed through the fixing plate 100, and the fixing part 213 is coaxially disposed with the fixing plate 100; the mounting part 120 is suitable for providing a stable mounting base for the rotating shaft 110; the rotating shaft 110 matches the inner side wall of the mounting part 120, the rotating shaft 110 is disposed through the mounting part 120, and the rotating shaft 110 is rotatably disposed relative to the mounting part 120.

[0046] In one possible implementation, such as Figure 2 As shown, both the first mounting base 210 and the second mounting base 310 include: a connector 211 and a bearing seat 212; one end of the connector 211 is provided with a fixing part 213, the connector 211 is connected to the mounting part 120 through the fixing part 213, and the other end of the connector 211 is fixedly connected to the bearing seat 212.

[0047] It should be noted that the bearing housing 212 is suitable for mounting and supporting the first roller 230 / second roller 330, ensuring that the first roller 230 / second roller 330 can rotate freely within the bearing housing 212; the main body of the connecting member 211 is plate-shaped, and the fixing part 213 is fixedly installed on the side of the connecting member 211 away from the fixing plate 100 by welding. The fixing part 213 has a through hole, and by matching with the mounting part 120, one end of the connecting member 211 is sleeved on the mounting part 120 on the central shaft of the fixing plate 100 through the fixing part 213, thereby realizing the precise positioning of the first mounting seat 210 and the second mounting seat 310 on the fixing plate 100, and thus the relative position of the first roller 230 and the second roller 330 installed on the mounting seat can be precisely controlled, avoiding the deviation of the position of the first roller 230 and the second roller 330 due to installation errors.

[0048] In one possible implementation, the main body of the bearing housing 212 has a U-shaped structure, with the openings of the two bearing housings 212 facing opposite sides, and the first roller 230 is rotatably disposed within the opening of the bearing housing 212.

[0049] In one possible implementation, the main body of the fixing part 213 has a stepped structure. It should be noted that the fixing parts 213 of both the first mounting base 210 and the second mounting base 310 are sleeved on the mounting part 120, and the end of the fixing part 213 of the second mounting base 310 adjacent to the fixing part 213 of the first mounting base 210 is sleeved on the fixing part 213 of the first mounting base 210. This stepped structure design allows the fixing part 213 to achieve a stable connection within a limited space, reducing the overall volume of the device and effectively improving space utilization.

[0050] According to another aspect of this application, a line number printer is provided, including any of the above-described dual-roller synchronous opposite-rotation device.

[0051] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A dual-roller synchronous opposite-direction rotation device, characterized in that, include: Fixed plate, first mounting base, second mounting base, double-layer driven wheel, single-layer driven wheel and driving wheel; The first mounting base is mounted on the fixed plate, and the first mounting base is rotatably provided with a first roller; The double-layer driven wheel is disposed on the side of the fixed plate away from the first mounting base, and the double-layer driven wheel is connected to the first roller through the first transmission shaft; The second mounting base is disposed on the same side of the fixed plate as the first mounting base and is disposed opposite to the first mounting base. The second mounting base is provided with a second roller. The single-layer driven wheel is meshed with the double-layer driven wheel, and the single-layer driven wheel is connected to the second roller via the second transmission shaft; The drive wheel is rotatably mounted on the fixed plate and connected to the drive device of the line number printer; The driving wheel is also meshed with the double-layer driven wheel, so that when the driving device drives the driving wheel to rotate, it synchronously drives the double-layer driven wheel and the single-layer driven wheel to rotate at the same speed but in opposite directions, thereby driving the first roller and the second roller to rotate synchronously in opposite directions.

2. The dual-roller synchronous opposite-direction rotation device according to claim 1, characterized in that, The double-layer driven wheel includes: an upper gear and a lower gear; The upper gear and the lower gear are coaxially fixed; the upper gear is meshed with the driving gear, and the lower gear is meshed with the single-layer driven gear.

3. The dual-roller synchronous opposite-direction rotation device according to claim 2, characterized in that, The number of teeth on the driving gear is equal to the number of teeth on the upper gear, and the number of teeth on the single-layer driven gear is equal to the number of teeth on the lower gear.

4. The dual-roller synchronous opposite-direction rotation device according to claim 1, characterized in that, The fixing plate is equipped with a rotating shaft; The rotating shaft passes through the fixed plate and is located on the central axis of the fixed plate. The drive wheel is fixedly mounted at one end of the rotating shaft.

5. The dual-roller synchronous opposite-direction rotation device according to claim 4, characterized in that, Also includes: Installation Department; The mounting part is sleeved on the outer side wall of the rotating shaft and is fixedly connected to the fixing plate.

6. The dual-roller synchronous opposite-direction rotation device according to claim 5, characterized in that, Both the first mounting base and the second mounting base include: a connector and a bearing housing; One end of the connector is provided with a fixing part, and the connector is connected to the mounting part through the fixing part. The other end of the connector is fixedly connected to the bearing seat.

7. The dual-roller synchronous opposite-direction rotation device according to claim 6, characterized in that, The main body of the bearing housing is U-shaped, and the openings of the two bearing housings face each other and are opposite to each other. The first roller is rotatably disposed in the opening of the bearing housing.

8. The dual-roller synchronous opposite-direction rotation device according to claim 6, characterized in that, The main body of the fixing part has a stepped structure.

9. A line marking printer, characterized in that, Includes the dual-roller synchronous opposite-direction rotation device as described in any one of claims 1 to 8.

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