A device for straightening of in-line printer paper

Abstract

The utility model discloses a kind of straightening devices of inlay printer paper, it is related to inlay printer technical field, including supporting mechanism, straightening mechanism and cooperation mechanism;Straightening mechanism includes dustproof tube, double-end motor, bevel gear transmission pair, straightening cam and contact assembly with elastic buffer;Cooperation mechanism is used to drive straightening mechanism horizontal movement, the utility model is connected by setting elastic block contact plate, realize flexible buffer when preliminary compression, avoid paper indentation or breakage;Two sides straightening cam are synchronously driven by double-end motor, periodic pushing and shoving is carried out to paper four corners, effectively eliminate warping and edge curling;And by electric push rod and sliding slot guide structure, it realizes self-adapting positioning, solved the existing inlay printer when handling damp, storage deformation etc. Paper, due to insufficient straightening, resulting in paper jam, paper feeding skew and printing misregistration etc.

Description

Technical Field

[0001] This utility model relates to the field of embedded printer technology, specifically to a paper straightening device for embedded printers. Background Technology

[0002] Embedded printers are printing devices that are installed inside other devices and work together as a component of them. They are commonly found in self-service terminals, medical equipment, industrial control cabinets, smart retail machines, etc. Unlike stand-alone printers, embedded printers usually have dedicated interfaces and need to be adapted to the spatial layout and control of the host. They emphasize reliability, low maintenance and automated operation capabilities.

[0003] In existing technologies, some printers use fixed pressure plates or single-sided rollers to level paper. For example, they lack active adjustment capabilities and cannot adapt to paper of different thicknesses or degrees of warping. If a single motor drives a single-sided cam, the paper will be subjected to asymmetrical force, which can easily cause skewing or local wrinkles. When dealing with paper that has curled up after being stored in a humid environment, the straightening effect is insufficient, often causing paper jams or printing misalignments. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide an embedded printer paper straightening device that has the advantage of non-destructive straightening and solves the problem of paper warping and jamming.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a paper straightening device for an embedded printer, wherein the support mechanism includes a support base and a placement plate, and the upper end of the support base is fixedly connected to the lower end of the placement plate;

[0006] The upper sides of the placement plate are provided with straightening mechanisms, and the straightening mechanisms are provided with cooperating mechanisms. The straightening mechanisms are used to straighten the paper, and the cooperating mechanisms are used to cooperate with the straightening process.

[0007] In a preferred embodiment of this invention, the straightening mechanism includes a dustproof tube, a dual-head motor, transmission rods, a driving bevel gear, a driven bevel gear, a straightening cam, and a mounting plate. The inner wall of the dustproof tube is fixedly connected to the surface of the dual-head motor. The output ends on both sides of the dual-head motor are respectively fixedly connected to the inner ends of the two transmission rods. The outer ends of the transmission rods are fixedly connected to the inner wall of the driving bevel gear. The tooth surface of the driving bevel gear meshes with the tooth surface of the driven bevel gear. The surface of the driven bevel gear is fixedly connected to the upper end of the straightening cam. The inner wall of the straightening cam is rotatably connected to both sides of the upper end of the mounting plate via a rotating shaft.

[0008] As a preferred embodiment of this utility model, the mounting plate is provided with a buffer mechanism, which includes a bearing plate, an elastic block, a fixing plate and a contact plate. The inner wall of the bearing plate is fixedly connected to the inner two end surfaces of the elastic block, the outer surface of the elastic block is fixedly connected to the inner wall of the fixing plate, and the inner surface of the fixing plate is fixedly connected to the surface of the contact plate.

[0009] In a preferred embodiment of this invention, the surface of the dustproof tube is fixedly connected to the upper end of the bearing plate, the driving bevel gear and the driven bevel gear are both disposed inside the dustproof tube, and the lower surface of the mounting plate is slidably connected to the upper surface of the placement plate.

[0010] In a preferred embodiment of this invention, the upper end of the mounting plate is fixedly connected to the lower end of the bearing plate, the two straightening cams are respectively disposed on both sides of the bearing plate, and the outer surface of the contact plate is in contact with the inner surface of the bearing plate.

[0011] In a preferred embodiment of this invention, the mating mechanism includes an electric push rod and a connecting plate, wherein the output end of the electric push rod is fixedly connected to the inner wall of the connecting plate.

[0012] In a preferred embodiment of this invention, the surface of the electric push rod is fixedly connected to the lower end of the placement plate, the surface of the connecting plate is fixedly connected to the surface of the mounting plate, and the surface of the connecting plate is slidably connected to the inner wall of the placement plate via a sliding groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model solves the problems of paper jams and printing offset caused by paper warping, curling or inaccurate positioning during the paper feeding process of embedded printers by setting up a support mechanism, a straightening mechanism and a cooperating mechanism, thereby achieving the effect of fast, uniform, non-destructive straightening and stable feeding of paper.

[0015] 2. This utility model, by setting up a buffer mechanism including an elastic block and a contact plate, allows the contact force to be flexibly adjusted during the straightening process, effectively avoiding paper indentations or damage caused by squeezing, and solving the problem of paper damage caused by traditional straightening.

[0016] 3. This utility model solves the problem of uneven paper edge warping and difficulty in leveling by setting up a symmetrical bevel gear and cam straightening component driven by a dual-head motor to achieve synchronous periodic pushing of the four corners of the paper, thereby improving the straightening accuracy and adaptability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main three-dimensional structure provided in an embodiment of the present utility model;

[0018] Figure 2This is a three-dimensional structural diagram of the straightening mechanism provided in this embodiment of the utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the mating mechanism provided in an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the main body in vertical cross-section provided in this embodiment of the utility model.

[0021] In the diagram: 1. Support mechanism; 101. Support base; 102. Placement plate; 2. Straightening mechanism; 201. Dustproof pipe; 202. Dual-head motor; 203. Transmission rod; 204. Driving bevel gear; 205. Driven bevel gear; 206. Straightening cam; 207. Mounting plate; 3. Buffer mechanism; 301. Bearing plate; 302. Elastic block; 303. Fixing plate; 304. Contact plate; 4. Coordination mechanism; 401. Electric push rod; 402. Connecting plate. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] Example 1

[0027] Reference Figure 1-4In the first embodiment of this utility model, a support mechanism 1 is provided, including a support base 101 and a placement plate 102. The upper end of the support base 101 is fixedly connected to the lower end of the placement plate 102. A straightening mechanism 2 is provided on both sides of the upper end of the placement plate 102. A cooperating mechanism 4 is provided on the straightening mechanism 2. The straightening mechanism 2 is used to straighten the paper, and the cooperating mechanism 4 is used to cooperate in the straightening process.

[0028] Specifically, the support mechanism 1 provides a solid foundation for the entire straightening process through the stable connection between the support base 101 and the placement plate 102, ensuring that the paper remains horizontally positioned during the straightening process and avoiding straightening deviations caused by platform shaking or deformation. The placement plate 102 serves as the paper bearing surface, and the straightening mechanisms 2 and the cooperating mechanisms 4 set on both sides of it work together to achieve paper clamping and multi-point synchronous straightening. This structure effectively solves the problems of paper jams and printing misalignment caused by unstable support and paper positioning deviation in existing equipment, improves paper feeding reliability and straightening consistency, and provides a key guarantee for the stable operation of the embedded printer.

[0029] Furthermore, the paper needs to be straightened before entering the printer to ensure quality. During operation, the paper is first laid flat on the placement plate 102, and then straightened by the straightening mechanism 2, with the assistance of the mechanism 4.

[0030] Example 2

[0031] The second embodiment of this utility model provides a straightening mechanism 2 including a dustproof tube 201, a dual-head motor 202, transmission rods 203, a driving bevel gear 204, a driven bevel gear 205, a straightening cam 206, and a mounting plate 207. The inner wall of the dustproof tube 201 is fixedly connected to the surface of the dual-head motor 202. The output ends on both sides of the dual-head motor 202 are respectively fixedly connected to the inner ends of the two transmission rods 203. The outer ends of the transmission rods 203 are fixedly connected to the inner wall of the driving bevel gear 204. The tooth surface of the driving bevel gear 204 meshes with the tooth surface of the driven bevel gear 205. The surface of the driven bevel gear 205 is fixedly connected to the upper end of the straightening cam 206. The inner wall of the straightening cam 206 is rotatably connected to both sides of the upper end of the mounting plate 207 via a rotating shaft. A buffer mechanism 3 is provided on the mounting plate 207. The punching mechanism 3 includes a bearing plate 301, an elastic block 302, a fixed plate 303, and a contact plate 304. The inner wall of the bearing plate 301 is fixedly connected to the inner two end surfaces of the elastic block 302. The outer surface of the elastic block 302 is fixedly connected to the inner wall of the fixed plate 303. The inner surface of the fixed plate 303 is fixedly connected to the surface of the contact plate 304. The surface of the dustproof tube 201 is fixedly connected to the upper end of the bearing plate 301. The driving bevel gear 204 and the driven bevel gear 205 are both disposed inside the dustproof tube 201. The lower surface of the mounting plate 207 is slidably connected to the upper surface of the placement plate 102. The upper end of the mounting plate 207 is fixedly connected to the lower end of the bearing plate 301. Two straightening cams 206 are respectively disposed on both sides of the bearing plate 301. The outer surface of the contact plate 304 is in contact with the inner surface of the bearing plate 301.

[0032] Specifically, the straightening mechanism 2 is equipped with a dustproof tube 201, a dual-head motor 202, a bevel gear transmission pair, and an elastic buffer assembly. The contact plate 304 connected to the elastic block 302 can absorb the impact during the initial pressing, avoiding paper damage caused by squeezing. The symmetrical cam mechanism driven by the dual-head motor 202 can act synchronously on the four corners of the paper, effectively eliminating warping and curling. This solves the problems of easy paper damage, uneven straightening, and slow response of traditional straightening devices, improves straightening efficiency and adaptability, and provides reliable paper feeding for printing.

[0033] Furthermore, the contact plate 304 is flexibly connected to the bearing plate 301 via the elastic block 302. When the electric push rod 401 pushes, the elastic block 302 buffers the paper to avoid indentation and damage, completing the initial positioning and leveling. Then, the dual-head motor 202 inside the dustproof tube 201 is started. Its output shafts on both sides drive the active bevel gear 204 via the transmission rod 203, which meshes with the driven bevel gear 205 to drive the straightening cam 206 to rotate. The cam profile periodically pushes the paper edge, and the four cams at both ends squeeze diagonally and synchronously to eliminate warping and curling, achieving overall fast and uniform straightening.

[0034] Example 3

[0035] The third embodiment of this utility model provides a mating mechanism 4 including an electric push rod 401 and a connecting plate 402. The output end of the electric push rod 401 is fixedly connected to the inner wall of the connecting plate 402, the surface of the electric push rod 401 is fixedly connected to the lower end of the placement plate 102, the surface of the connecting plate 402 is fixedly connected to the surface of the mounting plate 207, and the surface of the connecting plate 402 is slidably connected to the inner wall of the placement plate 102 through a sliding groove.

[0036] Specifically, the cooperating mechanism 4, through the connection between the electric push rod 401 and the connecting plate 402, and the guide structure of the sliding groove between the connecting plate 402 and the inner wall of the placement plate 102, ensures that the straightening mechanism 2 moves stably and accurately in the horizontal direction. When the electric push rod 401 extends or retracts, its thrust is reliably transmitted to the entire straightening assembly through the connecting plate 402. At the same time, the sliding groove restricts the vertical offset, preventing the mechanism from shaking or jamming. This effectively solves the problems of inaccurate alignment and uneven paper force caused by insufficient guidance in traditional straightening devices, improves the repeatability and stability of the straightening process, and provides a structural foundation for subsequent non-destructive straightening.

[0037] Furthermore, the electric push rod 401 below the placement plate 102 is activated. The push rod drives the straightening mechanism 2 to move horizontally through the connecting plate 402, so that the contact plate 304 lightly touches the paper surface.

[0038] Working principle:

[0039] Before the paper enters the embedded printer, it needs to be straightened to ensure print quality. During operation, the paper is first placed stably on the placement plate 102. Then, according to the actual size of the paper, the electric push rod 401 located at the lower end of the placement plate 102 is activated. The output end of the electric push rod 401 drives the entire straightening mechanism 2 to move horizontally towards both sides of the paper through the connecting plate 402 until the contact plate 304 on the support plate 301, which is fixedly connected to the connecting plate 402, lightly touches the paper surface. The contact plate 304 is flexibly connected to the support plate 301 through the elastic block 302. During the continuous advancement of the electric push rod 401, the elastic block 302 provides necessary cushioning, effectively preventing indentations or damage to the paper due to contact, thus completing the initial positioning and flattening of the paper. After completing the initial contact and positioning, the dustproof tube 20 located at the upper end of the support plate 301 is further activated. The dual-head motor 202 inside the plate 102 has two output shafts connected to the drive bevel gear 204 via transmission rods 203. The drive bevel gear 204 meshes with the driven bevel gear 205 mounted on the upper end of the straightening cam 206. When the dual-head motor 202 is running, the power is transmitted through the bevel gear pair to drive the straightening cams 206 on both sides to rotate synchronously. The profile of the straightening cam 206 allows it to apply a periodic pushing action to the edge of the paper during rotation, achieving effective flattening of both ends of the paper. Since there are two straightening cams 206 at each end of the plate 102, a total of four cams work together to apply straightening force at the four corners of the paper simultaneously. On the basis of the contact plate 304 having initially flattened the paper as a whole, the four straightening cams 206 further eliminate possible warping, curling, and other deformations of the paper by diagonally and synchronously squeezing and pushing, achieving rapid and uniform overall straightening.

[0040] In summary, the combination of electric push rods, elastic contact plates, and a multi-cam straightening mechanism driven by dual-head motors enables adaptive clamping and straightening of paper of different sizes, effectively ensuring the stability of paper feeding and print quality during subsequent printing processes.

[0041] The dual-head motor and electric actuator used in this application can be additionally equipped with protective measures that are common knowledge in this technical field under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0042] It should be noted that (the dual-head motor, bevel gear, straightening cam, elastic block, and electric push rod) are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the device, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0043] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0044] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0045] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A paper straightening device for an embedded printer, characterized in that: Includes a support mechanism (1) for paper in an embedded printer, the support mechanism (1) including a support base (101) and a placement plate (102), the upper end of the support base (101) being fixedly connected to the lower end of the placement plate (102); The upper end of the placement plate (102) is provided with straightening mechanisms (2) on both sides, and the straightening mechanism (2) is provided with a cooperating mechanism (4). The straightening mechanism (2) is used to straighten the paper, and the cooperating mechanism (4) is used to cooperate with the straightening process.

2. The paper straightening device for an embedded printer according to claim 1, characterized in that: The straightening mechanism (2) includes a dustproof tube (201), a dual-head motor (202), a transmission rod (203), a driving bevel gear (204), a driven bevel gear (205), a straightening cam (206), and a mounting plate (207). The inner wall of the dustproof tube (201) is fixedly connected to the surface of the dual-head motor (202). The output ends on both sides of the dual-head motor (202) are fixedly connected to the inner ends of the two transmission rods (203), respectively. The outer ends of the transmission rods (203) are fixedly connected to the inner wall of the driving bevel gear (204). The tooth surface of the driving bevel gear (204) meshes with the tooth surface of the driven bevel gear (205). The surface of the driven bevel gear (205) is fixedly connected to the upper end of the straightening cam (206). The inner wall of the straightening cam (206) is rotatably connected to both sides of the upper end of the mounting plate (207) via a rotating shaft.

3. The paper straightening device for an embedded printer according to claim 2, characterized in that: The mounting plate (207) is provided with a buffer mechanism (3), which includes a bearing plate (301), an elastic block (302), a fixing plate (303), and a contact plate (304). The inner wall of the bearing plate (301) is fixedly connected to the inner two end surfaces of the elastic block (302), the outer surface of the elastic block (302) is fixedly connected to the inner wall of the fixing plate (303), and the inner surface of the fixing plate (303) is fixedly connected to the surface of the contact plate (304).

4. The paper straightening device for an embedded printer according to claim 3, characterized in that: The surface of the dustproof tube (201) is fixedly connected to the upper end of the bearing plate (301). The driving bevel gear (204) and the driven bevel gear (205) are both located inside the dustproof tube (201). The lower surface of the mounting plate (207) is slidably connected to the upper surface of the placement plate (102).

5. The paper straightening device for an embedded printer according to claim 3, characterized in that: The upper end of the mounting plate (207) is fixedly connected to the lower end of the bearing plate (301), and the two straightening cams (206) are respectively disposed on both sides of the bearing plate (301). The outer surface of the contact plate (304) is in contact with the inner surface of the bearing plate (301).

6. The paper straightening device for an embedded printer according to claim 3, characterized in that: The cooperating mechanism (4) includes an electric push rod (401) and a connecting plate (402), with the output end of the electric push rod (401) fixedly connected to the inner wall of the connecting plate (402).

7. The paper straightening device for an embedded printer according to claim 6, characterized in that: The surface of the electric push rod (401) is fixedly connected to the lower end of the placement plate (102), the surface of the connecting plate (402) is fixedly connected to the surface of the mounting plate (207), and the surface of the connecting plate (402) is slidably connected to the inner wall of the placement plate (102) through a sliding groove.

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