Children camera paper feeding guide structure and printing device
By employing a rounded transition design with R-angle 1 and R-angle 2 and a paper guide ramp in the children's camera, combined with a positioning component, the problems of paper feeding jamming and inaccurate recognition in the children's camera are solved, achieving smooth paper feeding and accurate printing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-04
- Publication Date
- 2026-04-07
AI Technical Summary
Existing children's cameras suffer from issues such as jamming and uneven paper feeding, and inaccurate paper recognition, leading to a decline in image quality.
A paper feeding guide structure for children's cameras was designed, which adopts an arc transition design with R-angle 1 and R-angle 2, combined with a paper guide ramp and an adaptive baffle, and with positioning components such as sensors or reflective photocouplers, to achieve accurate paper recognition and guidance.
It effectively reduces frictional resistance during paper feeding, improves paper feeding smoothness, and ensures that the printed content does not shift or overlap through precise positioning components, thereby improving image quality.
Smart Images
Figure CN224089919U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to camera technical field especially relates to children camera paper feeding guide structure. BACKGROUND
[0002] Children camera refers to the photographic equipment specially designed for children, which has the characteristics of safety and easy operation. This kind of camera usually considers the physical characteristics, usage habits and needs of children, and optimizes the design to facilitate children to use and operate.
[0003] At present, there are various types of children cameras on the market, among which the Polaroid camera is deeply loved by children because of its instant printing imaging feature. However, although the existing children camera has been optimized in design, in the actual use process, some children cameras have the problems of paper feeding jam and unsmoothness, which not only affects the use experience, but also may cause paper damage, thereby affecting the imaging quality. The existing children camera does not support self-adhesive printing, and the recognition of paper is not accurate, and the problem of photo printing content deviation or overlapping often occurs. INVENTION CONTENTS
[0004] Therefore, the purpose of the utility model is to provide a children camera paper feeding guide structure, which solves the problems of paper feeding jam, unsmoothness and inaccurate recognition of printing paper of the existing part of children camera.
[0005] To achieve the above technical purpose, the utility model provides a children camera paper feeding guide structure:
[0006] It comprises a mounting frame, a motor is arranged below the mounting frame, a gear box driven by the motor is fixed on one side of the mounting frame, a paper feeding rubber roller is fixedly connected to the output end of the gear box, and the paper feeding rubber roller is rotatably connected to the mounting frame, a baffle is arranged in the mounting frame, a thermal print head is installed on the baffle, a paper guide plate is fixed in the mounting frame, and the paper guide plate is located below the paper feeding rubber roller, one side of the paper guide plate is a paper guide slope for guiding paper, a paper feeding channel is formed between the paper feeding rubber roller and the paper guide slope, the junction of the side of the paper guide plate away from the baffle and the paper guide slope is an R angle one, an R angle two is formed between the paper feeding rubber roller, the baffle and the top of the paper guide plate, an installation groove is formed in the paper guide plate, and a positioning assembly is arranged in the installation groove.
[0007] Preferably, the positioning assembly comprises a sensor installed in the installation groove for identifying the printing paper mark.
[0008] Preferably, the positioning assembly comprises a reflective light coupler installed in the installation groove for identifying the self-adhesive gap.
[0009] Preferably, both sides of the top of the baffle are fixed with protrusions, and both sides of the mounting bracket are provided with grooves, with the protrusions slidingly engaged in the corresponding grooves.
[0010] Preferably, a plurality of springs are fixed at equal intervals on the back of the baffle, and the end of the spring away from the baffle is fixed to the inner wall of the mounting bracket.
[0011] Preferably, the baffle and thermal printhead are tilted, and the angle between the baffle, thermal printhead and the horizontal plane is 15° to 30°.
[0012] Preferably, the radius of the first R-angle is in the range of 0.5mm to 2.0mm, and the radius of the second R-angle is in the range of 0.3mm to 1.5mm.
[0013] Preferably, the angle between the thermal printhead and the horizontal plane is 25°.
[0014] This utility model also provides a children's camera printing device, which adopts the above-mentioned children's camera paper feeding guide structure.
[0015] As can be seen from the above technical solutions, this application has the following beneficial effects:
[0016] 1. By setting R-angle 1 and R-angle 2, the friction and resistance of paper during the feeding process are effectively reduced. The rounded transition design of R-angle 1 reduces the frictional resistance of thermal paper or self-adhesive materials during the feeding process, avoiding paper jams, scratches, or adhesive detachment caused by right angles or sharp angles. In addition, the rounded transition design of R-angle 2 further reduces the contact resistance between the inner wall of the paper feeding channel and the paper after it enters the paper feeding channel, thereby further avoiding paper feeding jams and uneven feeding. Furthermore, R-angle 1 and R-angle 2 are connected by a paper guide ramp, which also facilitates paper transport. The cooperation of these three elements can greatly improve the smoothness of paper feeding.
[0017] 2. Because the baffle and thermal printhead are at an angle of 15° to 30° to the horizontal plane, and because the baffle and thermal printhead are under the action of springs, they can adapt to different paper thicknesses. In addition, because the inclination angle of the paper guide ramp is 25°, the paper guide ramp can guide the thermal paper put in by the user to smoothly enter the internal transmission path.
[0018] 3. Two positioning components are set up to determine the paper status, thereby achieving precise printing control to ensure that a complete image is printed, and that the printed content is not offset, overlapped, or blank, thus saving costs. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0020] Figure 1 A schematic diagram of the paper feeding guide structure for the children's camera provided by this utility model;
[0021] Figure 2 A cross-sectional schematic diagram of the paper feeding guide structure for a children's camera provided by this utility model;
[0022] Figure 3 A cross-sectional schematic diagram of the paper feed guide structure for the children's camera provided by this utility model in use;
[0023] Figure 4 A schematic diagram of the paper feed guide structure for the children's camera provided by this utility model in use.
[0024] Figure descriptions: 1. Mounting bracket; 2. Motor; 3. Gearbox; 4. Paper feed roller; 5. Guide plate; 6. Baffle; 7. Thermal printhead; 8. Paper guide ramp; 9. Radius 1; 10. Radius 2; 11. Mounting slot; 12. Sensor; 13. Protrusion; 14. Groove; 15. Spring; 16. Thermal paper; 17. Reflective optocoupler. Detailed Implementation
[0025] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of the various embodiments of this disclosure. Certain details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures.
[0026] Reference Figures 1-4 :
[0027] In embodiment 1, the paper feeding guide structure for a children's camera of this utility model includes a mounting frame 1, a motor 2 disposed below the mounting frame 1, a gearbox 3 driven by the motor 2 fixed on one side of the mounting frame 1, a paper feeding roller 4 fixedly connected to the output end of the gearbox 3, and the paper feeding roller 4 and the mounting frame 1 being rotatably connected, a baffle 6 disposed inside the mounting frame 1, a thermal printhead 7 mounted on the baffle 6, a guide plate 5 fixed inside the mounting frame 1, and the guide plate 5 being located below the paper feeding roller 4, one side of the guide plate 5 forming a paper guiding ramp 8 for guiding paper, a paper feeding channel being formed between the paper feeding roller 4 and the paper guiding ramp 8, an R-angle 9 being set at the junction of the side of the guide plate 5 away from the baffle 6 and the paper guiding ramp 8, i.e., the R-angle of the guide plate edge; an R-angle 10 being formed between the paper feeding roller 4, the baffle 6 and the top of the guide plate 5, i.e., the R-angle of the inner wall of the paper feeding channel; an installation groove 11 is opened inside the guide plate 5, and a positioning component is disposed in the installation groove 11.
[0028] The baffle 6 has protrusions 13 fixed on both sides of its top, and grooves 14 are provided on both sides of the mounting bracket 1. The protrusions 13 slide within the corresponding grooves 14. Multiple springs 15 are fixed at equal intervals on the back of the baffle 6. The end of each spring 15 away from the baffle 6 is fixed to the inner wall of the mounting bracket 1. The baffle 6 and the thermal printhead 7 are tilted, and the angle between the baffle 6, the thermal printhead 7, and the horizontal plane is 15 degrees. 0 ~30 0 The radius of R-angle 1 ranges from 0.5mm to 2.0mm, and the radius of R-angle 2 ranges from 0.3mm to 1.5mm; the angle between the thermal printhead 7 and the horizontal plane is 25°.
[0029] It should be noted that the settings of R-angle 1 (9) and R-angle 2 (10) refer to the rounded transition design of the edges of the guide plate 5 and the inner walls of the paper feeding channel between the paper feed roller 4, the baffle 6, and the guide plate 5. The paper feeding channel is also the guide channel. The rounded transition design of R-angle 1 (9) reduces the frictional resistance of the thermal paper 16 or self-adhesive material during the feeding process, avoiding paper jams, scratches, or adhesive detachment caused by right angles or sharp angles. For example, when the radius of R-angle 1 is within the range of 2.0mm, it is suitable for thicker self-adhesive materials to prevent edge detachment. Additionally, the R-angle... The rounded transition design of R10 further reduces the contact resistance between the paper and the inner wall of the paper feeding channel after the paper enters the paper feeding channel, thereby further avoiding problems such as paper jamming and uneven feeding. For example, when R2 is 1.55mm, it is used for high-friction materials such as self-adhesive labels, while when R2 is a smaller R, it is suitable for narrow channel designs to ensure guiding accuracy. Furthermore, R19 and R210 are connected by a paper guide ramp, which further promotes paper feeding. The cooperation of the three can greatly improve the smoothness of paper feeding.
[0030] It is worth adding that, because the baffle 6 and the thermal printhead 7 are at a 15-degree angle to the horizontal plane... 0 ~30 0 Furthermore, the baffle 6 and the thermal printhead 7 are adapted to different paper thicknesses by the action of the spring 15. In addition, since the tilt angle of the paper guide ramp 8 is 25°, the paper guide ramp 8 can guide the thermal paper 16 placed by the user to smoothly enter the internal transmission path.
[0031] In this first embodiment, a positioning component installed in the mounting slot 11 is also included. Specifically, the positioning component can be a sensor 12, used to locate the markings on the printing paper, such as identifying the black markings on the printing paper, so as to achieve complete printing of a single image. In this embodiment, the sensor 12 is a reflective photoelectric sensor, which determines the paper state by emitting light and detecting the intensity of the reflected light. The sensor 12 is provided with a light-emitting diode and a photosensitive element. The light-emitting diode is used to emit light to illuminate the paper surface and to reflect the light; the photosensitive element is used to receive the reflected light and to generate a current signal.
[0032] For example, in continuous printing scenarios, a mark (such as a black mark) is printed on the paper at intervals to locate a camera photo. The printer uses a reflective photoelectric sensor to identify the marks on the paper to determine the precise position of each sheet, thereby achieving precise printing control and ensuring that the printed content does not shift or overlap. Specifically, when light emitted by an LED shines on the paper surface, if the paper surface is white (or light-colored), most of the light is reflected back and received by the photosensitive element. At this time, the photosensitive element generates a certain current. However, when light shines on the black mark (black or dark mark), because the black mark has a strong ability to absorb light, very little light is reflected back, and the light received by the photosensitive element is greatly reduced. The current generated by the photosensitive element will also change accordingly. By detecting this change in current, the mark can be identified, thereby determining the precise position of each sheet of paper, thus achieving precise printing control and ensuring that the printed content does not shift or overlap. Furthermore, since reflective black marks typically use PET substrate and high-reflectivity ink coating, the requirements for material specialization are lower, and the reflective black mark positioning technology uses a reflective photoelectric sensor, which is also less expensive.
[0033] In the second embodiment of the paper feed guide structure for children's cameras, the positioning component further includes a reflective optical coupler 17 installed in the mounting groove 11 for identifying the gaps in the self-adhesive labels. The reflective optical coupler 17 is provided with a transmitter and a receiver. The transmitter and receiver in the reflective optical coupler 17 detect the gaps in the self-adhesive labels through a penetrating optical means.
[0034] It should be noted that in continuous printing scenarios, there are sections of transparent backing paper or gaps with continuous circular holes at intervals on the paper. The printer uses a penetrating optical method to detect these gaps, which is particularly suitable for adhesives with transparent backing paper or those that directly penetrate the material. This method determines the precise position of each sheet of paper, thereby achieving precise printing control and ensuring that the printed content does not shift or overlap. Specifically, the transmitter emits light into the label gap area. The transmitter can be an infrared LED or a visible light laser diode. The receiver receives the light penetrating the gap. The receiver can be a phototransistor or a photodiode with a response wavelength matched to the transmitter. When the adhesive gap moves to the alignment area between the transmitter and receiver, the light penetrates the transparent backing paper, and the receiver detects a high-level signal, thus identifying the adhesive gap and ensuring that the printed content does not shift or overlap.
[0035] In embodiment three, this utility model also provides a children's camera printing device, specifically including the children's camera paper feeding guide structure in embodiment one and embodiment two.
[0036] The exemplary implementation of the solution proposed in this disclosure has been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.
Claims
1. A paper feed guide structure for a children's camera, comprising a mounting bracket (1) fixed inside the camera housing, characterized in that, The mounting frame (1) is equipped with a motor (2). A gearbox (3) driven by the motor (2) is located on one side of the mounting frame (1). A paper feed roller (4) is fixedly connected to the output end of the gearbox (3), and the paper feed roller (4) and the mounting frame (1) are rotatably connected. A baffle (6) is provided inside the mounting frame (1), and a thermal printhead (7) is installed on the baffle (6). A guide plate (5) is fixed inside the mounting frame (1), and the guide plate (5) is located below the paper feed roller (4). The guide plate (5) has a paper guide ramp (8) on one side for guiding paper. A paper feeding channel is formed between the paper feeding roller (4) and the paper guide ramp (8). The boundary between the side of the guide plate (5) away from the baffle (6) and the paper guide ramp (8) is set at an R angle one (9). An R angle two (10) is formed between the paper feeding roller (4), the baffle (6) and the top of the guide plate (5). An installation groove (11) is opened in the guide plate (5). A positioning component is provided in the installation groove (11).
2. The paper feeding guide structure for a children's camera according to claim 1, characterized in that, The positioning component includes a sensor (12) installed in the mounting slot (11) for positioning the printed paper markings.
3. The paper feeding guide structure for a children's camera according to claim 1 or 2, characterized in that, The positioning component includes a reflective optical coupler (17) installed in the mounting slot (11) for identifying the gaps in the adhesive tape.
4. The paper feeding guide structure for a children's camera according to claim 1, characterized in that, Both sides of the top of the baffle (6) are fixed with protrusions (13), and both sides of the mounting bracket (1) are provided with grooves (14). The protrusions (13) slide in the corresponding grooves (14).
5. The paper feeding guide structure for a children's camera according to claim 1, characterized in that, Multiple springs (15) are fixed at equal intervals on the back of the baffle (6), and the end of the spring (15) away from the baffle (6) is fixed to the inner wall of the mounting bracket (1).
6. The paper feeding guide structure for a children's camera according to claim 1, characterized in that, The baffle (6) and the thermal print head (7) are inclined, and the angle between the baffle (6), the thermal print head (7) and the horizontal plane is 15° to 30°.
7. The paper feeding guide structure for a children's camera according to claim 1, characterized in that, The radius of the first R-angle (9) ranges from 0.5 mm to 2.0 mm, and the radius of the second R-angle (10) ranges from 0.3 mm to 1.5 mm.
8. The paper feeding guide structure for a children's camera according to claim 1, characterized in that, The thermal printhead (7) has an angle of 25° with the horizontal plane.
9. A children's camera printing device, characterized in that, Includes the paper feed guide structure for a children's camera as described in any one of claims 1 to 8.