Transport mechanism for a double-sided document printing device

Abstract

The application discloses a transmission mechanism of a double-sided certificate printing device, which is used for transmitting a printing medium and comprises a base, a mounting cavity defined in the base, a guide outlet arranged at the bottom of the base, a transmission assembly arranged in the mounting cavity, a guide assembly cooperated with the transmission assembly to define a transmission channel, a driving assembly arranged at opposite sides of the base, a plurality of detection pieces arranged on the base and located in the transmission direction of the transmission channel, and a reversing assembly arranged in the mounting cavity and switchable relative to the position of the base when the detection pieces detect that the printing medium is transmitted to a preset position, so as to change the transmission path of the printing medium. The transmission mechanism can change the transmission path of the printing medium, facilitate the automatic double-sided printing of the printing medium by the double-sided certificate printing device, effectively improve the printing efficiency, and reduce the time cost and labor cost.

Description

Technical Field

[0001] This application relates to the field of printer manufacturing technology, and more specifically, to a transmission mechanism for a double-sided document printing device. Background Technology

[0002] Driver's licenses and vehicle registration certificates are usually made of soft media. When these soft media are used as printing media, they are small in size. Conventional printers cannot change the transmission path of the printing media during the transmission process, which is not conducive to the subsequent realization of automatic duplex printing of the printing media. This results in low printing efficiency and waste of time and labor costs. Summary of the Invention

[0003] One objective of this application is to provide a new technical solution for the transmission mechanism of a double-sided document printing device, which can at least solve the problem that existing printer transmission mechanisms cannot change the transmission path of the printing medium during the transmission of the printing medium.

[0004] This application provides a transmission mechanism for a duplex document printing device, used for transmitting printing media, comprising: a base, wherein the base defines a mounting cavity and the bottom of the base has an outlet; a transmission assembly disposed within the mounting cavity and rotatable relative to the base; a guide assembly disposed within the mounting cavity and cooperating with the transmission assembly to define a transmission channel for transmitting printing media; a drive assembly disposed on opposite sides of the base and used to drive the transmission assembly and the guide assembly to move, thereby transmitting printing media; a plurality of detection elements disposed on the base and located in the transmission direction of the transmission channel; and a reversing assembly disposed within the mounting cavity, wherein when the detection elements detect that the printing media has been transmitted to a preset position, the position of the reversing assembly relative to the base can be switched to change the transmission path of the printing media, and the printing media is discharged through the outlet.

[0005] Optionally, the first end of the base extends downward, the second end of the base extends upward, the middle portion of the base extends horizontally, one of the detection elements is disposed at the second end of the base, the reversing assembly is disposed on the middle portion of the base, and the reversing assembly extends toward the second end of the base.

[0006] Optionally, the base includes two base bodies, which are spaced apart and disposed opposite to each other, defining the mounting cavity, and the transmission assembly and the guide assembly are disposed between the two base bodies.

[0007] Optionally, the transmission assembly includes: multiple sets of transmission elements, which are spaced apart in the transmission direction. Each set of transmission elements passes through the base and is connected to the drive assembly. In each set of transmission elements located at the downward and upward extension portions of the base, every two rollers constitute a set of transmission elements, and the two rollers are spaced apart to form a transmission gap for transmitting printing media. In each set of transmission elements located at the middle portion of the base, each roller constitutes a set of transmission elements.

[0008] Optionally, the guiding assembly includes: multiple sets of guide members, each set of guide members being disposed between two adjacent sets of transmission members, the guide members and the transmission members cooperating to form a transmission channel for conveying printing media.

[0009] Optionally, each group of guide members includes one or two guide plates, and the number of guide plates in each group of guide members corresponds to the number of rollers in each group of transmission members.

[0010] Optionally, the guide assembly further includes a connecting plate disposed at the first end of the base, the connecting plate being located between the two sets of the transmission components.

[0011] Optionally, the drive assembly includes: two drive motors, which are spaced apart on one side of the base, wherein one end of each of the two transmission members is connected to the drive motors; a plurality of synchronous pulleys, which are spaced apart on the other side of the base, and each transmission member is connected to a corresponding synchronous pulley; and a plurality of synchronous belts, with one synchronous belt disposed between two adjacent synchronous pulleys.

[0012] Optionally, the detection element includes a mounting base and a sensor, wherein the mounting base is disposed on the base and the sensor is disposed on the mounting base, and the sensor is used to detect the transmission position of the printing medium.

[0013] Optionally, the commutation assembly includes: a magnet base disposed on the base; an electromagnet disposed on the magnet base; a commutation plate connected to the electromagnet to drive the commutation plate to switch positions via the electromagnet; and a rotating shaft connected to the commutation plate, the commutation plate being pivotable about the rotating shaft.

[0014] According to an embodiment of the present invention, the transmission mechanism of the document duplex printing apparatus defines a transmission channel for transmitting the printing medium within a base, comprising a transmission component and a guide component. A detection component can detect the position of the printing medium on the transmission channel, and when the printing medium is detected to have been transmitted to a preset position, the transmission path of the printing medium can be changed by switching the position of the reversing component. This facilitates subsequent automatic duplex printing of the printing medium by the document duplex printing apparatus, effectively improving printing efficiency and reducing time and labor costs.

[0015] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0017] Figure 1 This is a schematic diagram of the transmission mechanism according to an embodiment of the present invention;

[0018] Figure 2 This is an exploded view of the transmission mechanism according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the transmission mechanism of the printing medium according to an embodiment of the present invention;

[0020] Figure 4 This is another schematic diagram of the transmission mechanism for printing media according to an embodiment of the present invention.

[0021] Figure label:

[0022] Transmission mechanism 100;

[0023] Base 10; Substrate 11;

[0024] Transmission assembly 20; Transmission component 21;

[0025] Guide assembly 30; guide component 31; connecting plate 32;

[0026] Drive assembly 40; drive base 41; drive motor 42; synchronous pulley 43; synchronous belt 44;

[0027] Detection component 50; Mounting base 51; Sensor 52;

[0028] Commutation assembly 60; magnet base 61; electromagnet 62; commutation plate 63; rotating shaft 64. Detailed Implementation

[0029] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0030] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0031] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0032] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0034] The transmission mechanism 100 of the document duplex printing device according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0035] like Figure 1 and Figure 2 As shown, the transmission mechanism 100 of the document duplex printing device according to an embodiment of the present invention includes a base 10, a transmission component 20, a guide component 30, a drive component 40, a plurality of detection components 50, and a reversing component 60.

[0036] Specifically, the base 10 defines a mounting cavity, and the bottom of the base 10 has an outlet. A transmission assembly 20 is disposed within the mounting cavity and is rotatable relative to the base 10. A guide assembly 30 is disposed within the mounting cavity, and cooperates with the transmission assembly 20 to define a transmission channel for transmitting the printing media. Drive assemblies 40 are disposed on opposite sides of the base 10, and drive the transmission assembly 20 and guide assembly 30 to move, thereby transmitting the printing media. A detection element 50 is disposed on the base 10, and is located in the transmission direction of the transmission channel. A reversing assembly 60 is disposed within the mounting cavity; when the detection element 50 detects that the printing media has been transmitted to a preset position, the position of the reversing assembly 60 relative to the base 10 can be switched to change the transmission path of the printing media, and the printing media is discharged through the outlet.

[0037] In other words, see Figure 1 and Figure 2As shown, the transmission mechanism 100 of the document duplex printing device according to an embodiment of the present invention is mainly used for transmitting printing media, which can be square soft media used to produce driver's licenses or vehicle registration certificates, etc. The transmission mechanism 100 mainly consists of a base 10, a transmission assembly 20, a guide assembly 30, a drive assembly 40, a detection element 50, and a reversing assembly 60. The base 10 has a mounting cavity, and its bottom has an outlet communicating with the transmission channel. After printing on either the front or back of the printing media, it is exported to the device body (e.g., [device name missing]) through the outlet. Figure 3 and Figure 4 As shown), the printing medium is then exported to the flipping mechanism through the device body. After the flipping mechanism flips the printing medium, it is reintroduced into the transmission channel on the base 10 for printing on the reverse or front side of the printing medium, thus realizing automatic double-sided printing of the document double-sided printing device.

[0038] The transmission assembly 20 is installed within the mounting cavity and is rotatable relative to the base 10. The guide assembly 30 is also installed within the mounting cavity, and cooperates with the transmission assembly 20 to define a transmission channel. Under the action of the guide assembly 30 and the transmission assembly 20, the printing media can be transported within the transmission channel. The drive assembly 40 is installed on opposite sides of the base 10, and is used to drive the transmission assembly 20 and the guide assembly 30 to facilitate the transport of the printing media.

[0039] Multiple detectors 50 are mounted on the base 10, with the detectors 50 positioned along the transport direction of the transport channel. A reversing assembly 60 is mounted within the mounting cavity. When a detector 50 detects that the print media has been transported to a preset position, the reversing assembly 60 can be switched relative to the base 10, thereby changing the transport path of the print media (see [reference]). Figure 3 and Figure 4 , Figure 3 and Figure 4 The direction of the middle arrow indicates the transmission direction of the printing medium, allowing the printing medium to be exported to the device body through the outlet, so that the other side of the printing medium can be printed subsequently, thus achieving double-sided printing of the printing medium.

[0040] Therefore, according to the embodiment of the present invention, the transmission mechanism 100, transmission component 20, and guide component 30 of the document duplex printing device define a transmission channel for transmitting the printing medium within the base 10. The detection component 50 can detect the position of the printing medium on the transmission channel, and when the printing medium is detected to have been transmitted to a preset position, the transmission path of the printing medium can be changed by switching the position of the reversing component 60, which facilitates the subsequent automatic duplex printing of the printing medium by the document duplex printing device, effectively improving printing efficiency and reducing time and labor costs.

[0041] According to one embodiment of the present invention, a first end of a base 10 extends downward, a second end of a base 10 extends upward, and a middle portion of a base 10 extends horizontally. One of the detection elements 50 is disposed at the second end of the base 10, and a reversing assembly 60 is disposed on the middle portion of the base 10, extending toward the second end of the base 10.

[0042] In other words, such as Figure 1 and Figure 2 As shown, the first end of the base 10 extends downward, the second end of the base 10 extends upward, and the middle portion of the base 10 extends generally horizontally. One detection element 50 is mounted on the second end of the base 10, and a reversing assembly 60 is mounted on the middle portion of the base 10, approximately located near the upwardly extending portion of the base 10. The reversing assembly 60 extends towards the second end of the base 10. When the printing medium is transported along the transport channel and the front side of the reversing assembly 60 to the upwardly extending portion of the second end of the base 10, the detection element 50 detects the printing medium, and the position of the reversing assembly 60 changes, causing the printing medium to be transported downward along the back side of the reversing assembly 60, thereby changing the transport path of the printing medium (the transport path of the printing medium is changed from...). Figure 3 The direction of the arrow in the middle changes Figure 4 (In the direction of the arrow in the image), the printing medium is transmitted downwards and exported to the device body through the export port.

[0043] According to one embodiment of the present invention, such as Figure 2 As shown, the base 10 includes two bases 11, which are spaced apart and arranged opposite each other, defining a mounting cavity. One end of each base 11 extends downward and the other end of each base 11 extends upward. The transmission assembly 20 and the guide assembly 30 are installed between the two bases 11, and the base 10, the transmission assembly 20, and the guide assembly 30 form a semi-enclosed medium transmission channel.

[0044] In some specific embodiments of the present invention, the transmission assembly 20 includes: multiple sets of transmission members 21, which are spaced apart in the transmission direction, and each set of transmission members 21 passes through the base 10 and is connected to the drive assembly 40. Specifically, in each set of transmission members 21 located at the downward and upward extension portions of the base 10, every two rollers constitute a set of transmission members 21, and the two rollers are spaced apart to form a transmission gap for transmitting the printing medium. In each set of transmission members 21 located at the middle portion of the base 10, each roller constitutes a set of transmission members 21.

[0045] In other words, see Figure 2The transmission assembly 20 mainly consists of multiple sets of transmission components 21, which are spaced apart in the direction of printing medium transport. Each set of transmission components 21 passes through the base 10 and is connected to the drive assembly 40, which can drive each set of transmission components 21 to rotate. In each set of transmission components 21 located at the downward and upward extension portions of the base 10, every two rollers form a set of transmission components 21. The two rollers are arranged vertically and spaced apart to form a transport gap for transporting the printing medium. The printing medium moves along the transport direction under the friction of the two rollers. In each set of transmission components 21 located in the middle portion of the base 10, each roller forms a set of transmission components 21. When the printing medium is transported along the transport channel and the front side of the reversing assembly 60 to the upward extension portion of the second end of the base 10, the detection element 50 detects the printing medium, and the position of the reversing assembly 60 changes, causing the printing medium to be transported downward along the back side of the reversing assembly 60. This changes the transport path of the printing medium, which is then transported downward and exported to the device body through the outlet.

[0046] According to one embodiment of the present invention, see Figure 2 The guide assembly 30 mainly consists of multiple sets of guide members 31. Each set of guide members 31 is installed between two adjacent sets of transmission members 21. The guide members 31 and the transmission members 21 cooperate to form a transmission channel for conveying printing media. Each set of guide members 31 may consist of one or two guide plates, and the number of guide plates in each set of guide members 31 corresponds to the number of rollers in each set of transmission members 21.

[0047] According to one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the guide assembly 30 also includes a connecting plate 32, which is installed at the first end of the base 10. The connecting plate 32 is located between the two sets of transmission components 21 and is used to support the flipping mechanism and the transmission mechanism 100.

[0048] In some specific embodiments of the present invention, see Figure 1 and Figure 2 The drive assembly 40 includes two drive motors 42, multiple synchronous pulleys 43, and multiple synchronous belts 44. Specifically, the two drive motors 42 are spaced apart and mounted on one side of the base 10, each drive motor 42 being connected to the base 10 via a drive seat 41. One end of each of the two transmission components 21 is connected to a drive motor 42, and the drive motor 42 drives the transmission component 21 to rotate. The multiple synchronous pulleys 43 are spaced apart and mounted on the other side of the base 10, each transmission component 21 being connected to a corresponding synchronous pulley 43. A synchronous belt 44 is disposed between two adjacent synchronous pulleys 43. The drive motors 42, synchronous belts 44, and synchronous pulleys 43 enable the movement of the transmission assembly 20 and the guide assembly 30.

[0049] According to one embodiment of the present invention, such as Figure 2 As shown, the detection element 50 includes a mounting base 51 and a sensor 52. The mounting base 51 is disposed on the base 10, and the sensor 52 is disposed on the mounting base 51. The sensor 52 is used to detect the transmission position of the printing medium. When the detection element 50 detects that the printing medium has been transmitted to the second end of the base 10, the position of the reversing component 60 relative to the base 10 can be switched, thereby changing the transmission path of the printing medium and allowing the printing medium to be exported to the device body through the outlet, so as to facilitate subsequent printing on the other side of the printing medium, thus realizing double-sided printing of the printing medium.

[0050] According to one embodiment of the present invention, see Figure 1 and Figure 2 The commutation assembly 60 includes a magnet base 61, an electromagnet 62, a commutation plate 63, and a rotating shaft 64. The magnet base 61 is mounted on the base 10, and the electromagnet 62 is mounted on the magnet base 61. The commutation plate 63 is connected to the electromagnet 62 to drive the commutation plate 63 to switch positions. The rotating shaft 64 is connected to the commutation plate 63 and can be a D-shaft. The commutation plate 63 is pivotable around the rotating shaft 64.

[0051] See also in this application. Figure 3 When the printing medium is located in the horizontal portion of the base 10, the top of the reversing plate 63 is positioned to the right, allowing the printing medium to enter between the two rollers on the upper part of the base 10. Once the end of the printing medium leaves and is no longer in contact with the reversing plate 63, see [link to relevant documentation]. Figure 4 The reversing plate 63 rotates counterclockwise under the drive of the electromagnet 62. The top of the reversing plate 63 is located on the left side. At this time, the drive motor 42 (motor) reverses and drives the printing medium to move downward into the printer body, realizing the switching of the transmission path of the printing medium.

[0052] Of course, other structures and working principles of the transmission mechanism 100 are understandable and achievable by those skilled in the art, and will not be described in detail in this application.

[0053] In summary, according to embodiments of the present invention, the transmission mechanism 100, transmission component 20, and guide component 30 of the document duplex printing apparatus define a transmission channel for transmitting the printing medium within the base 10. The detection component 50 can detect the position of the printing medium on the transmission channel, and when the printing medium is detected to have been transmitted to a preset position, the transmission path of the printing medium can be changed by switching the position of the reversing component 60. This facilitates subsequent automatic duplex printing of the printing medium by the document duplex printing apparatus, effectively improving printing efficiency and reducing time and labor costs.

[0054] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A transmission mechanism for a double-sided document printing device, used for transmitting a printing medium, wherein the printing medium is a square flexible medium for producing driver's licenses or vehicle registration certificates, characterized in that, include: A base, wherein an installation cavity is defined within the base, and an outlet is provided at the bottom of the base, the base comprising two base bodies, the two base bodies being spaced apart and disposed opposite to each other and defining the installation cavity; A transmission assembly is disposed within the mounting cavity and located between the two bases. The transmission assembly is rotatable relative to the base. The transmission assembly includes multiple sets of transmission elements, which are spaced apart in the transmission direction. Each set of transmission elements located in the downward and upward extension portions of the base includes two rollers, which are spaced apart to form a transmission gap for adapting to the square flexible medium. Each set of transmission elements located in the middle portion of the base includes one roller. A guide assembly is disposed within the mounting cavity and between the two substrates. The guide assembly cooperates with the transmission assembly to define a transmission channel for transmitting printing media. The guide assembly includes multiple sets of guide members, each set of guide members being disposed between two adjacent sets of transmission members. Each set of guide members includes one or two guide plates, and the number of guide plates in each set of guide members is consistent with the number of rollers in the corresponding transmission member. A drive assembly is provided on opposite sides of the base. The drive assembly includes two drive motors, multiple synchronous pulleys, and multiple synchronous belts. The two drive motors are spaced apart on one side of the base and are respectively connected to two transmission components. The multiple synchronous pulleys are spaced apart on the other side of the base, and each transmission component is correspondingly connected to one synchronous pulley. A synchronous belt is sleeved between adjacent synchronous pulleys. The drive assembly is used to drive the transmission assembly and the guide assembly to move in order to transmit the square flexible medium. Multiple detection elements are provided on the base and located in the transmission direction of the transmission channel. Each detection element includes a mounting base and a sensor. The mounting base is fixed on the base body of the base, and the sensor is provided on the mounting base. The sensor is used to detect the transmission position of the square flexible medium. A reversing assembly is disposed within the mounting cavity and located in the middle part of the base. The reversing assembly includes a magnet base, an electromagnet, a reversing plate, and a rotating shaft. The magnet base is fixed on the base body of the base. The electromagnet is disposed on the magnet base. The reversing plate is connected to the electromagnet. The rotating shaft is connected to the reversing plate and the reversing plate is pivotable around the rotating shaft. When the sensor detects that the square soft medium has been transmitted to a preset position, the position of the reversing component relative to the base can be switched to change the transmission path of the square soft medium, and the square soft medium is exported through the outlet.

2. The transmission mechanism of the double-sided document printing device according to claim 1, characterized in that, The first end of the base extends downward, the second end of the base extends upward, the middle portion of the base extends horizontally, one of the detection elements is disposed at the second end of the base, the reversing assembly is disposed on the middle portion of the base, and the reversing assembly extends toward the second end of the base.

3. The transmission mechanism of the double-sided document printing device according to claim 1, characterized in that, The guide assembly further includes a connecting plate, which is disposed at the first end of the base and is located between the two sets of the transmission components.

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