Drive Structure and Printing Device

Abstract

An embodiment of the present invention discloses a driving structure and a printing device, including a transmission component, a functional component, a camshaft, a first transmission component, and a driving member. The functional component has an operating position and a raised position. A partial structure of the camshaft can abut against the functional component. The camshaft has a first position that can make the functional component located at the operating position and a second position that can force the functional component to be located at the raised position. The first transmission component includes a first transmission part and a second transmission part that are rotatably arranged. The second transmission part and the camshaft are synchronously rotatably arranged. Driving the first transmission part to rotate in two opposite directions respectively can drive the second transmission part to rotate in two corresponding opposite directions through two one-way rotation structures respectively. The driving force output by the driving member can act on the first transmission part and the transmission component simultaneously. The structure is simpler, which can not only save manufacturing costs but also reduce the size of the whole machine.

Description

Technical Field

[0001] The present invention relates to the technical field of drive structures, and in particular to a drive structure and a printing device. Background Art

[0002] In some existing drive structures, there are both drive and functional roles, and the surface of the transported object is processed by using the set functional structure. These drive structures can be widely used in related equipment, including but not limited to printing equipment and lottery prize redemption terminals. Now take the printing equipment as an example to illustrate, the printing equipment is provided with a drive structure, and the drive structure can realize the printing of the information to be printed on the surface of the paper while the paper is transported inside the printing equipment. At this time, the print head set in the printing equipment serves as a functional structure.

[0003] The driving structure in these devices generally has a functional component and a transmission component. When working, the functional component needs to be driven to the working position, and then the transmission component transports the items while processing the surface of the items. After the processing is completed, the functional component is driven away from the working position, and then the transmission component is used to output the items.

[0004] However, in the related art, different driving components are often used to drive the transmission component and the functional component to move respectively, which will increase the structural complexity of the whole machine, not only increase the manufacturing cost, but also increase the size of the whole machine. Summary of the invention

[0005] Based on this, it is necessary to propose a driving structure and a printing device with a simple structure and reduced cost to address the above problems.

[0006] An embodiment of the present invention provides a driving structure, including:

[0007] A transport component, used to transport items;

[0008] A functional component having an operating position capable of cooperating with the transmission component to process the surface of an object and a lifting position capable of being separated from the operating position;

[0009] A camshaft, rotatably arranged, a part of the camshaft structure being capable of abutting against the functional component, the camshaft having a first position capable of placing the functional component in the working position and a second position capable of forcing the functional component to be in a raised position;

[0010] The first transmission assembly includes a first transmission part and a second transmission part that are rotatably arranged. The second transmission part and the camshaft are synchronously rotatably arranged. Two one-way rotation structures with opposite rotation directions are connected to the first transmission part. Connecting parts and disengaging parts are respectively arranged on the second transmission part corresponding to the two one-way rotation structures. When one of the two one-way rotation structures disengages from the second transmission part, the other one-way rotation structure is connected to the second transmission part, driving the first transmission part to rotate in two opposite directions respectively, and capable of driving the second transmission part to rotate in two corresponding opposite directions through the two one-way rotation structures respectively. When the two one-way rotation structures are respectively disengaged from the second transmission part, the camshaft is respectively located at the first position and the second position;

[0011] And a driving member, the driving force output by the driving member can act on the first transmission part and the transmission assembly simultaneously.

[0012] In some embodiments, the two one-way rotation structures are respectively a forward gear and a reverse gear. Teeth capable of meshing with the forward gear and the reverse gear are arranged on the outer wall of the second transmission part. A first smooth section for disconnecting the connection between the forward gear and the second transmission part is arranged on the path where the second transmission part meshes with the forward gear. A second smooth section for disconnecting the connection between the reverse gear and the second transmission part is also arranged on the path where the second transmission part meshes with the reverse gear. The first smooth section and the second smooth section are arranged staggeredly.

[0013] In some embodiments, the first transmission part further includes a forward and reverse rotating shaft, and both the forward gear and the reverse gear can be connected to the forward and reverse rotating shaft through a one-way bearing or a one-way ratchet.

[0014] In some embodiments, the functional assembly includes an abutting part, the abutting part can abut on the camshaft, a groove for making way is formed at the position of the camshaft corresponding to the abutting part, the functional assembly is elastically rotatably arranged. When the camshaft rotates to the first position, the groove faces the abutting part, and the functional assembly rotates under the action of elastic force until the abutting part abuts on the bottom of the groove, so that the functional assembly rotates to the working position. When the camshaft rotates until the abutting part disengages from the groove, it can force the functional assembly to rotate in the reverse direction and disengage from the working position.

[0015] In some embodiments, the functional component includes a mounting seat, a functional head and a rotating shaft. The functional head and the abutment portion are both arranged on the mounting seat. The mounting seat is rotatably connected to the rotating shaft. A torsion spring is also arranged on the rotating shaft. The torsion spring acts on the mounting seat to drive the functional head to the working position in a free state.

[0016] In some embodiments, a second transmission assembly is also included, and the second transmission assembly includes a first transmission wheel, a second transmission wheel, a third transmission wheel, a first transmission belt and a second transmission belt. A driving wheel is provided on the output end of the driving member, the first transmission wheel and the driving wheel are connected by the first transmission belt, the first transmission wheel and the second transmission wheel are connected by the second transmission belt, one end of the second transmission wheel is meshed with the third transmission wheel, the second transmission wheel is connected to the transmission assembly to drive the transmission assembly to move, and the third transmission wheel is connected to the first transmission part to drive the first transmission part to move.

[0017] In some embodiments, the first transmission wheel includes a first connection portion and a second connection portion that are arranged opposite to each other, the first transmission belt is connected to the first connection portion, and the second transmission belt is connected to the second connection portion.

[0018] In some embodiments, the transmission component includes a rotatably arranged transmission shaft, a transmission rubber roller sleeved on the transmission shaft, and a driven rubber roller cooperating with the transmission rubber roller. The transmission shaft is connected to the second transmission wheel, and the driving member can drive the second transmission wheel to rotate to drive the transmission shaft to rotate.

[0019] In some embodiments, one end of the transmission shaft is inserted into the transmission wheel, a clearance groove is provided on the transmission wheel at a position corresponding to the end of the transmission shaft, a protrusion is provided on the transmission wheel and is located in the clearance groove, and a pin is provided on the transmission shaft at a position corresponding to the protrusion and can abut against the protrusion.

[0020] An embodiment of the present invention further provides a printing device, comprising a housing and the above-mentioned driving structure.

[0021] The embodiments of the present invention have the following beneficial effects:

[0022] According to the driving structure and printing device in the above embodiments, by setting up a first transmission component, only one driving member can be used to drive the functional component to the working position to process the object and simultaneously drive the transmission component to transport the object. It can also be possible to drive the functional component to a raised position to stop processing the object and drive the transmission component to transport the paper out of the driving structure after the object processing is completed.

[0023] The lifting of the functional component (lowering to the working position and rising to the lifting position) and the transportation of articles (driving the transmission component to transport articles) can be achieved by a single driving member. Compared with the related art in which different driving structures are used to drive the article transportation and the lifting of the functional component respectively, the structure of the solution of the present invention is fewer in number and simpler in structure, which can not only save the manufacturing cost but also reduce the size of the whole machine.

[0024] When the driving structure is applied to a printing device, the lifting of the functional component (lowering to the working position and rising to the lifting position) and the transportation of paper (driving the transmission component to transport paper) can be achieved by a single driving member. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0026] Among them:

[0027] Figure 1 shows a schematic structural diagram of the driving structure provided by the present invention;

[0028] Figure 2 shows an exploded view of the driving structure provided by the present invention;

[0029] Figure 3 shows a side view of the driving structure provided by the present invention;

[0030] Figure 4 shows Figure 3 an enlarged schematic view of part A in

[0031] Figure 5 shows a schematic structural diagram of the printing device provided by the present invention.

[0032] MAIN SYMBOL DESCRIPTION OF ELEMENTS:

[0033] 100. Driving structure; 200. Housing; 1. Transmission assembly; 11. Transmission shaft; 111. Pin; 12. Transmission rubber roller; 13. Driven rubber roller; 2. Functional assembly; 21. Mounting seat; 211. Contact portion; 22. Functional head; 23. Rotating shaft; 24. Torsion spring; 3. Camshaft; 31. Groove; 4. First transmission assembly; 41. First transmission part; 411. Forward gear; 412. Reverse gear; 413. Forward and reverse shaft; 42. Second transmission part; 421. First smooth section; 422. Second smooth section; 5. Driving member; 51. Driving wheel; 6. Second transmission assembly; 61. First transmission wheel; 611. First connection portion; 612. Second connection portion; 62. Second transmission wheel; 621. Relief groove; 622. Protrusion; 63. Third transmission wheel; 64. First transmission belt; 65. Second transmission belt. Detailed implementation manners

[0034] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0037] On the one hand, the present invention provides a driving structure 100, which has the functions of both transporting articles and processing the surfaces of articles, and can be applied to devices that can print on paper, including but not limited to printers, lottery redemption terminals, etc.

[0038] For the convenience of description, the driving structure is taken as an example applied to a printer below. In one embodiment, please refer to Figure 1 and Figure 2, the driving structure 100 includes a transmission component 1, a functional component 2, a camshaft 3, a first transmission component 4, and a driving member 5.

[0039] The transmission component 1 is used to transport paper. Specifically, the transmission component 1 has two directions for transporting paper, and these two directions are opposite. The transmission component 1 can transport the paper in a certain direction to the functional component 2 for printing the paper. When the printing is completed, the transmission component 1 can transport the paper out of the driving structure 100 in the opposite direction to complete the printing of the paper.

[0040] The functional component 2 has an operating position that can cooperate with the transmission component 1 to print paper and a raised position that can be disengaged from the operating position. The functional component 2 is in the raised position when not in use for printing. When it is necessary to print the paper, an external force drives the functional component 2 to move to the operating position for printing the paper.

[0041] The camshaft 3 is rotatably arranged, and a part of the structure of the camshaft 3 can abut against the functional component 2. The camshaft 3 can stay at two positions during rotation, namely the first position and the second position. When the camshaft 3 stays at the first position, it can make the functional component 2 located at the operating position. When the camshaft 3 is at the second position, it can force the functional component 2 to move to the raised position.

[0042] The first transmission component 4 includes a rotatably arranged first transmission part 41 and a second transmission part 42. The second transmission part 42 is synchronously rotatably arranged with the camshaft 3, that is, driving the second transmission part 42 can drive the camshaft 3 to rotate. Two one-way rotation structures with opposite rotation directions are connected to the first transmission part 41. The two one-way rotation structures can rotate relative to the first transmission part 41 in two opposite directions respectively and are locked in the other direction. Corresponding connection parts and disengagement parts are provided on the second transmission part 42 for the two one-way rotation structures, so that both one-way rotation structures can be connected to the second transmission part 42 through the corresponding connection parts. When the one-way rotation structure is connected to the second transmission part 42, driving the one-way rotation structure can drive the second transmission part 42 to rotate. Since the two one-way rotation structures are locked in different directions, when one one-way rotation structure is locked, the other one-way rotation structure is in an idling state. At this time, even if the idling one-way rotation structure is connected to the second transmission part 42, it will not apply a driving force to the second transmission part 42.

[0043] It should be noted that when one of the two one-way rotation structures is disengaged from the second transmission part 42, the other one-way rotation structure is connected to the second transmission part 42, that is, there is no situation where the two one-way rotation structures are simultaneously disengaged from the second transmission part 42. When the first transmission part 41 is driven to rotate in two opposite directions respectively, the second transmission part 42 can be driven to rotate in two corresponding opposite directions through the two one-way rotation structures respectively. When the two one-way rotation structures are disengaged from the second transmission part 42 respectively, the camshaft 3 is located at the first position and the second position respectively. When the first transmission part 41 is driven to rotate in a certain direction, the second transmission part 42 can be driven to rotate through one of the two one-way rotation structures. When this one-way rotation structure rotates to the disengaged part from the second transmission part 42, it will no longer drive the second transmission part 42 to rotate. At this time, the second transmission part 42 can just drive the camshaft 3 to be in the first position or the second position. Similarly, the other one-way rotation structure can also drive the camshaft 3 to be in the other position.

[0044] Please refer to Figure 2 , in order to more clearly understand the relationship between the rotation direction of the first transmission part 41 and the position where it drives the camshaft 3 to move, the rotation direction of the first transmission part 41 when it can drive the camshaft 3 to rotate to the first position is defined as the "forward rotation" direction, and the rotation direction of the first transmission part 41 when it can drive the camshaft 3 to rotate to the second position is defined as the "reverse rotation" direction. Figure 1 The solid arrow in

[0045] In this application, only one driving part 5 is provided, and the driving force output by the driving part 5 can act on the first transmission part 41 and the transmission component 1 simultaneously.

[0046] It should be noted that the driving part 5 can drive the first transmission part 41 to rotate forward and reverse. The driving part 5 can act on the transmission component 1 simultaneously and can correspondingly drive the transmission component 1 to transport the paper in different directions. For example, when printing paper, the driving part 5 can drive the first transmission part 41 to rotate forward, driving the camshaft 3 to be in the first position, so that the functional component 2 is in the working position. At this time, the camshaft 3 is disconnected from the first transmission part 41. When the driving part 5 continues to drive the first transmission part 41 to rotate forward, the camshaft 3 remains stationary, while the driving part 5 can drive the transmission component 1 to move, so that the transmission component 1 can transport the paper on the printing path, facilitating the functional component 2 to print on the paper.

[0047] When it is necessary to output the printed paper after printing is completed, the driving member 5 needs to drive the first transmission part 41 to rotate in the reverse direction. At this time, the first transmission part 41 can drive the camshaft 3 to rotate in the reverse direction to the second position, so as to force the functional component 2 to lift to the legend operation position. At this time, the driving member 5 can simultaneously drive the transmission component 1 to transport the paper in the reverse direction and transport the paper out of the driving structure 100.

[0048] Therefore, by setting the first transmission component 4, only one driving member 5 can be used to drive the functional component 2 to the operation position to print the paper and drive the transmission component 1 to transport the paper when printing the paper. It can also realize driving the functional component 2 to move to the lifted position to stop printing the paper when printing is completed and driving the transmission component 1 to transport the paper out of the driving structure 100 after printing the paper is completed. Only one driving member 5 can realize the lifting (lowering to the operation position and rising to the lifted position) of the functional component 2 and the transportation of the paper (driving the transmission component 1 to transport the paper). Compared with the related art in which different driving structures are used to drive the paper transportation and drive the lifting of the functional component 2, the structure of the solution of the present invention is smaller in number and simpler in structure, which can not only save the manufacturing cost, but also reduce the size of the whole machine.

[0049] In one embodiment, please refer to Figure 1 and Figure 2 , the two one-way rotation structures are respectively a forward gear 411 and a reverse gear 412. The forward gear 411 and the reverse gear 412 are coaxially rotatably arranged, and the rotation directions of the two gears are opposite. The radial dimensions of the forward gear 411 and the reverse gear 412 are equal. The second transmission part 42 is also a gear structure, and its outer wall is provided with teeth that can mesh with the forward gear 411 and the reverse gear 412. The forward gear 411 and the reverse gear 412 can be simultaneously meshed with the second transmission part 42. However, since the forward gear 411 and the reverse gear 412 are one-way rotation gears with opposite rotation directions, even if the two gears are simultaneously meshed with the second transmission part 42, only one gear can act on the second transmission part 42.

[0050] A first smooth section 421 for disconnecting the forward-direction gear 411 and the second transmission part 42 is provided on the path where the second transmission part 42 meshes with the forward-direction gear 411. A second smooth section 422 for disconnecting the reverse-direction gear 412 and the second transmission part 42 is further provided on the path where the second transmission part 42 meshes with the reverse-direction gear 412. No teeth are provided on both the first smooth section 421 and the second smooth section 422. When the connection position between the forward-direction gear 411 or the reverse-direction gear 412 and the second transmission part 42 is located at the smooth section, the forward-direction gear 411 and the reverse-direction gear 412 will disengage from the second transmission part 42, and thus will no longer drive the second transmission part 42 to rotate. It should be noted that the first smooth section 421 and the second smooth section 422 are arranged staggeredly. The purpose of this arrangement is to ensure that the forward-direction gear 411 and the reverse-direction gear 412 are not simultaneously at the smooth section, that is, when one of the two gears is at the smooth section, the other needs to mesh with the second transmission part 42.

[0051] Preferably, the first transmission part 41 further includes a forward-and-reverse rotating shaft. The forward-direction gear 411 and the reverse-direction gear 412 are both coaxially connected to the forward-and-reverse rotating shaft. The rotation of the forward-and-reverse rotating shaft can drive the forward-direction gear 411 or the reverse-direction gear 412 to rotate. The forward-direction gear 411 and the reverse-direction gear 412 can both be connected to the forward-and-reverse rotating shaft through a one-way bearing or a one-way ratchet to achieve the one-way rotation of the forward-direction gear 411 and the reverse-direction gear 412.

[0052] The rotation directions of the forward-direction gear 411 and the reverse-direction gear 412 are not limited. That is, the forward-direction gear 411 can rotate forward relative to the forward-and-reverse shaft 413 or can also rotate backward relative to the forward-and-reverse shaft 413, as long as it is ensured that the rotation direction of the reverse-direction gear 412 is opposite to that of the forward-direction gear 411. In the embodiment of the present invention, the case where the forward-direction gear 411 can rotate forward relative to the forward-and-reverse shaft 413 and is locked against reverse rotation relative to the forward-and-reverse shaft 413 is taken as an example for description.

[0053] By providing the forward-direction gear 411 and the reverse-direction gear 412, and connecting the two gears to the forward-and-reverse shaft 413 in a one-way rotation manner, it is possible to lock the two gears in one direction and let them idle in the other direction. At the same time, two smooth sections are provided on the second transmission part 42 connected to the two gears, and the two smooth sections are respectively provided on the paths where it meshes with the two gears. In this way, the second transmission part 42 can be alternately driven by the forward-direction gear 411 and the reverse-direction gear 412 to drive the camshaft 3 to change between the first position and the second position.

[0054] In one embodiment, the functional component 2 includes an abutting portion 211 which can always abut against the camshaft 3. A groove 31 for making way is provided at the position of the camshaft 3 corresponding to the abutting portion 211. The functional component 2 is elastically rotatably arranged. By applying an elastic force to the functional component 2, the functional component 2 can be in the working position in the free state. When the camshaft 3 rotates to the first position, the groove 31 is directly opposite to the abutting portion 211, and the functional component 2 rotates under the action of the elastic force until the abutting portion 211 abuts against the bottom of the groove 31, so that the functional component 2 rotates to the working position. When the camshaft 3 rotates until the abutting portion 211 disengages from the groove 31, it can force the functional component 2 to rotate in the reverse direction and disengage from the working position. Before printing, the peripheral wall of a certain position of the camshaft 3 can abut against the abutting portion 211. At this time, the camshaft 3 supports the abutting portion 211, so that the functional component 2 disengages from the working position. When printing is required, only need to drive the camshaft 3 to rotate until the groove 31 is directly opposite to the abutting portion 211. Since the groove 31 provides a space for making way, under the action of the elastic force, the functional component 2 will rotate, drive the abutting portion 211 towards the bottom of the groove 31 until the abutting portion 211 abuts against the bottom of the groove 31. At this time, the functional component 2 just rotates to the working position.

[0055] When the camshaft 3 is in the first position, it is necessary to abut the abutting portion 211 in the groove 31. However, to disengage the functional component 2 from the working position, only need to disengage the abutting portion 211 from the groove 31. Therefore, the rotation angle required to drive the camshaft 3 to rotate to the second position is not limited, as long as the abutting portion 211 is disengaged from the groove 31.

[0056] In a specific embodiment, the functional component 2 includes a mounting base 21, a functional head 22 and a rotating shaft 23. Both the functional head 22 and the abutting portion 211 are arranged on the mounting base 21. The mounting base 21 is rotatably connected to the rotating shaft 23. A torsion spring 24 is also arranged on the rotating shaft 23. The torsion spring 24 can act on the mounting base 21 and can drive the mounting base 21 to rotate around the rotating shaft 23 to the position where the functional head 22 is in the working position in the free state. By arranging the torsion spring 24, an elastic force can be provided to drive the mounting base 21 to rotate to the working position. If you want to disengage the functional head 22 from the working position, only need to apply an external force to drive the mounting base 21 to rotate in the reverse direction away from the working position. In this application, the camshaft 3 is used to lift the mounting base 21 so that the functional head 22 disengages from the working position. When the camshaft 3 rotates until the groove 31 is directly opposite to the abutting portion 211, the groove 31 provides a space for the rotation of the mounting base 21, and then it can rotate to the working position under the action of the elastic force of the torsion spring 24.

[0057] In one embodiment, please refer to Figure 1 and Figure 2, the driving structure 100 further includes a second transmission assembly 6. The second transmission assembly 6 includes a first transmission wheel 61, a second transmission wheel 62, a third transmission wheel 63, a first transmission belt 64, and a second transmission belt 65. The driving member 5 is a driving motor, and a driving wheel 51 is coaxially and rotatably provided on the output end of the driving member 5. The first transmission wheel 61 and the driving wheel 51 can be connected by the first transmission belt 64. When the driving member 5 drives the driving wheel 51 to rotate, the driving force can be transmitted to the first transmission wheel 61 through the first transmission belt 64 to drive the first transmission wheel 61 to rotate. The first transmission wheel 61 and the second transmission wheel 62 are connected by the second transmission belt 65. When the first transmission wheel 61 rotates, it can drive the second transmission wheel 62 to rotate by using the second transmission belt 65. The second transmission wheel 62 is connected to the transmission assembly 1 to drive the transmission assembly 1 to move.

[0058] One end of the second transmission wheel 62 has teeth. The third transmission wheel 63 is a gear. The end of the second transmission wheel 62 with teeth can mesh with the third transmission wheel 63. Further, the second transmission wheel 62 can drive the third transmission wheel 63 to rotate. The third transmission wheel 63 is connected to the first transmission part 41. Specifically, the third transmission wheel 63 is coaxially and fixedly connected to the forward and reverse shaft 413. When the third transmission wheel 63 rotates, it can drive the forward and reverse shaft 413 to rotate.

[0059] By providing the second transmission assembly 6, the driving force output by the driving member 5 can be respectively transmitted to the transmission assembly 1 and the first transmission part 41.

[0060] It should be noted that the first transmission wheel 61 includes a first connection part 611 and a second connection part 612 arranged opposite to each other. The first transmission belt 64 is connected to the first connection part 611, and the second transmission belt 65 is connected to the second connection part 612. By providing the first connection part 611 and the second connection part 612, the first transmission belt 64 and the second transmission belt 65 can be respectively connected.

[0061] In one embodiment, please refer to Figures 1 to 4 , the transmission assembly 1 includes a rotatably arranged transmission shaft 11, a transmission rubber roller 12 sleeved on the transmission shaft 11, and a driven rubber roller 13 cooperating with the transmission rubber roller 12. A transmission wheel is connected to the transmission shaft 11. The driving member 5 can drive the transmission wheel to rotate to drive the transmission shaft 11 to rotate.

[0062] As can be seen from the above, this transmission wheel is the second transmission wheel 62. The second transmission wheel 62 is coaxially connected to the transmission shaft 11. By driving the second transmission wheel 62 to rotate, the transmission shaft 11 can be driven to rotate. The transmission rubber roller 12 and the driven rubber roller 13 on the transmission shaft 11 cooperate to clamp the paper. By driving the transmission shaft 11 to rotate, the paper can be driven to move. The specific movement direction of the paper is determined according to the rotation direction of the transmission shaft 11.

[0063] It should be noted that one end of the transmission shaft 11 is inserted into the second transmission wheel 62, or this end of the transmission shaft 11 can be connected to the second transmission wheel 62 through structures such as bearings, so that the second transmission wheel 62 can rotate relative to the transmission shaft 11. A relief groove 621 is provided at the position of the second transmission wheel 62 corresponding to the end of the transmission shaft 11, and a protrusion 622 located in the relief groove 621 protrudes from the second transmission wheel 62. A pin 111 that can abut against the protrusion 622 protrudes from the transmission shaft 11 at the position corresponding to the protrusion 622.

[0064] When the second transmission wheel 62 is driven, it needs to rotate until the protrusion 622 abuts against the pin 111 to drive the transmission shaft 11 to rotate.

[0065] The entire printing process of the driving structure 100 will be described below: First of all, it should be noted that since the second transmission wheel 62 and the third transmission wheel 63 are meshed and connected, the rotation directions of the second transmission wheel 62 and the third transmission wheel 63 are opposite. That is, when the third transmission wheel 63 drives the positive and negative shaft 413 to rotate forward, the second transmission wheel 62 drives the transmission shaft 11 to rotate in the reverse direction. The forward rotation of the positive and negative shaft 413 can drive the camshaft 3 to rotate to the first position, and the reverse rotation of the positive and negative shaft 413 can drive the camshaft 3 to rotate to the second position.

[0066] Before printing the paper, the paper needs to be transported to the working position of the function head 22. At this time, the function head 22 is in the raised position. To transport the paper, it is necessary to drive the second transmission wheel 62 to rotate forward until the protrusion 622 abuts against the pin 111 to drive the transmission shaft 11 to rotate forward, and the paper is transported to the lower part of the function head 22 through the cooperation of the transmission rubber roller 12 and the driven rubber roller 13. It is worth mentioning that when transporting the paper, the reverse gear 412 is located in the second smooth section 422, and the forward gear 411 can rotate relative to the positive and negative shaft 413 in the forward direction. Therefore, the forward gear 411 is in an idling state at this time, and the camshaft 3 remains in the raised position.

[0067] When transporting the paper to the working position, the second driving wheel 62 is driven to rotate in the reverse direction. At this time, the convex block 622 disengages from the pin 111, and the transmission shaft 11 is in a stationary state. The reverse rotation of the second driving wheel 62 can drive the positive and negative shaft 413 to rotate in the positive direction. At this time, the reverse gear 412 is still located in the second smooth section 422 and remains stationary. Since the positive gear 411 is reversely locked relative to the positive and negative shaft 413, when the positive and negative shaft 413 rotates in the positive direction, the positive gear 411 can be driven to rotate together. At this time, through the meshing action between the positive gear 411 and the second transmission part 42, the second transmission part 42 can be driven to rotate in the reverse direction until the camshaft 3 rotates to a position where the groove 31 is directly opposite to the abutting part 211. At this time, the mounting seat 21 rotates to the working position under the action of the torsion spring 24, and the functional head 22 also abuts against the paper to print on the paper;

[0068] It should be noted that when the positive gear 411 drives the second transmission part 42 to rotate, the reverse gear 412 can mesh with the second transmission part 42. However, since the reverse gear 412 rotates in the reverse direction relative to the positive and negative shaft 413, the reverse gear 412 is in an idling state at this time. When the mounting seat 21 is in the working position, the positive gear 411 just rotates to the first smooth section 421, so that the positive gear 411 is disconnected from the second transmission part 42, thereby keeping the camshaft 3 stationary and keeping the functional head 22 in the working position;

[0069] It is worth mentioning that when the second driving wheel 62 rotates in the reverse direction as mentioned above, the convex block 622 disengages from the pin 111, and the transmission shaft 11 is in a stationary state. When the functional head 22 abuts against the paper and is ready to print, after the convex block 622 rotates one circle, it abuts against the other end face of the pin 111 again. At this time, when the second transmission is continuously driven to rotate in the reverse direction, the transmission shaft 11 can be driven to rotate in the reverse direction through the cooperation of the convex block 622 and the pin 111, so as to drive the paper to move in the direction opposite to the transportation direction. While the paper is moving, the functional head 22 prints on the paper at the same time.

[0070] After printing is completed, the second driving wheel 62 is driven to rotate in the forward direction again. At this time, the convex block 622 and the pin 111 disengage again, and the transmission shaft 11 is temporarily in a stationary state. The second driving wheel 62 drives the third driving wheel 63 to rotate in the reverse direction. As can be seen from the above, at this time, the positive gear 411 is located in the first smooth section 421 and is disconnected from the positive and negative shaft 413. However, the reverse gear 412 meshes with the second transmission part 42. When the positive and negative shaft 413 rotates in the reverse direction, the reverse gear 412 has a tendency to rotate in the positive direction relative to the positive and negative shaft 413. Since the reverse gear 412 is positively locked relative to the positive and negative shaft 413, the reverse gear 412 can rotate in the reverse direction along with the positive and negative shaft 413;

[0071] The reverse rotation of the reverse gear 412 can drive the second transmission part 42 to rotate forward, so as to drive the camshaft 3 to rotate, and enable the abutting part 211 to disengage from the groove 31, thereby forcing the mounting seat 21 to rotate away from the working position to the raised position (restore to the original position). When the mounting seat 21 returns to the raised position, the reverse gear 412 is just located at the second smooth section 422, and the forward gear 411 meshes with the second transmission part 42. At this time, the reverse gear 412 is disconnected from the second transmission part 42, and the rotation of the forward and reverse shaft 413 can no longer drive the camshaft 3 to rotate;

[0072] And when the mounting seat 21 returns to the raised position, the convex block 622 rotates one circle and then abuts against the pin 111 again. Continuing to drive the second transmission wheel 62 to rotate forward can drive the transmission shaft 11 to rotate forward, so as to transport the paper out of the driving structure 100.

[0073] By arranging the convex block 622 and the pin 111, the second transmission wheel 62 and the transmission shaft 11 are driven through the convex block 622 and the pin 111. In the initial state, there is a certain distance between the convex block 622 and the pin 111. When driving the second transmission wheel 62 to rotate, the transmission shaft 11 can be in a static state. Only when the convex block 622 abuts against the pin 111 can the transmission shaft 11 be driven to rotate. Such a setting can provide a delay transmission structure between the second transmission wheel 62 and the transmission shaft 11, so that when the transmission shaft 11 needs to rotate, the transmission shaft 11 can be driven to rotate. In this way, it can be realized that when the functional head 22 moves to the working position and starts to print the paper, the paper can be driven to be transported along the printing path at the same time, so as to avoid the phenomenon of the initial working position shifting caused by transporting the paper in advance. And when the paper needs to be transported in the reverse direction after printing is completed, it can also be realized that after the functional head 22 completely disengages from the working position (that is, the functional head 22 completely disengages from the paper), the paper is then driven to be transported towards the output path. In this way, it can be avoided that the paper is transported before the functional head 22 disengages from the paper, thereby avoiding the pulling or squeezing of the paper by the functional head 22, which is beneficial to ensuring the integrity and flatness of the paper.

[0074] On the other hand, please refer to Figure 5 This invention also provides a printing device, which includes a housing 200 and the above-mentioned driving structure 100, and the driving structure 100 is installed on the housing 200.

[0075] The technical features of the above-mentioned embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0076] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A driving structure, characterized in that, Comprising: A transmission component for transmitting articles; A functional component having an operating position capable of cooperating with the transmission component to process the surface of an article and a raised position capable of disengaging from the operating position; A camshaft rotatably arranged, a partial structure of the camshaft being capable of abutting against the functional component, the camshaft having a first position capable of positioning the functional component at the operating position and a second position capable of forcing the functional component to the raised position; A first transmission component including a first transmission part and a second transmission part rotatably arranged, the second transmission part being synchronously rotatably arranged with the camshaft, two one-way rotation structures with opposite rotation directions being connected to the first transmission part, connection parts and disengagement parts being respectively arranged on the second transmission part corresponding to the two one-way rotation structures, when one of the two one-way rotation structures disengages from the second transmission part, the other one-way rotation structure is connected to the second transmission part, driving the first transmission part to rotate in two opposite directions respectively, capable of driving the second transmission part to rotate in two corresponding opposite directions respectively through the two one-way rotation structures, when the two one-way rotation structures respectively disengage from the second transmission part, the camshaft is respectively located at the first position and the second position; And a driving member, the driving force output by the driving member being capable of acting on the first transmission part and the transmission component simultaneously; The two one-way rotation structures are respectively a forward-direction gear and a reverse-direction gear, teeth capable of meshing with the forward-direction gear and the reverse-direction gear are arranged on the outer wall of the second transmission part, a first smooth section for disconnecting the forward-direction gear and the second transmission part is arranged on the path of the second transmission part meshing with the forward-direction gear, a second smooth section for disconnecting the reverse-direction gear and the second transmission part is further arranged on the path of the second transmission part meshing with the reverse-direction gear, and the first smooth section and the second smooth section are arranged staggeredly.

2. The drive structure according to claim 1, characterized in that, The first transmission part further includes a forward-and-reverse rotating shaft, and both the forward-direction gear and the reverse-direction gear can be connected to the forward-and-reverse rotating shaft through a one-way bearing or a one-way ratchet.

3. The drive structure according to claim 1, wherein The functional component includes an abutting part capable of abutting against the camshaft, a groove capable of serving as a relief is formed at the position of the camshaft corresponding to the abutting part, the functional component is elastically rotatably arranged, when the camshaft rotates to the first position, the groove faces the abutting part, and the functional component rotates to the abutting part abutting against the bottom of the groove under the action of elastic force, so that the functional component rotates to the operating position, when the camshaft rotates to the abutting part disengaging from the groove, the functional component can be forced to rotate reversely to disengage from the operating position.

4. The drive structure according to claim 3, characterized in that The functional component includes a mounting seat, a functional head and a rotating shaft. The functional head and the abutment portion are both arranged on the mounting seat. The mounting seat is rotatably connected to the rotating shaft. A torsion spring is also arranged on the rotating shaft. The torsion spring acts on the mounting seat to drive the functional head to the working position in a free state.

5. The drive structure according to claim 1, characterized in that The invention also includes a second transmission assembly, which includes a first transmission wheel, a second transmission wheel, a third transmission wheel, a first transmission belt and a second transmission belt. A driving wheel is arranged on the output end of the driving member. The first transmission wheel and the driving wheel are connected by the first transmission belt, and the first transmission wheel and the second transmission wheel are connected by the second transmission belt. One end of the second transmission wheel is meshed with the third transmission wheel. The second transmission wheel is connected to the transmission assembly to drive the transmission assembly to move. The third transmission wheel is connected to the first transmission part to drive the first transmission part to move.

6. The drive structure according to claim 5, characterized in that, The first transmission wheel includes a first connection portion and a second connection portion that are arranged opposite to each other, the first transmission belt is connected to the first connection portion, and the second transmission belt is connected to the second connection portion.

7. The drive structure according to any one of claims 5-6, characterized in that, The transmission component includes a rotatably arranged transmission shaft, a transmission rubber roller sleeved on the transmission shaft, and a driven rubber roller cooperating with the transmission rubber roller. The transmission shaft is connected to the second transmission wheel, and the driving member can drive the second transmission wheel to rotate to drive the transmission shaft to rotate.

8. The drive structure according to claim 7, wherein One end of the transmission shaft is inserted into the transmission wheel, a clearance groove is provided on the transmission wheel at a position corresponding to the end of the transmission shaft, a bump located in the clearance groove is convexly provided on the transmission wheel, and a pin capable of abutting against the bump is convexly provided on the transmission shaft at a position corresponding to the bump.

9. A printing device, characterized in that, It comprises a housing and a driving structure as claimed in any one of claims 1 to 8.

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