Lifting structure for printing imaging
By designing a combination of concave shaped frame and push-sliding rod in a carbon tape printing equipment, using the conversion gear set and eccentric wheel structure, the problem of insufficient flexibility in paper pressure and distance control in traditional technology is solved, and the small size is achieved Flexible motion and efficient printing imaging in space.
Patent Information
- Application Number
- CN202420836372.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-22
AI Technical Summary
In the existing carbon tape printing and imaging technology, the traditional spring steel sheet and gear set structure cannot be flexibly adjusted when facing the need to control paper pressure and distance, and is inconvenient to use in a narrow space, which cannot meet complex operation and space limitations. Application scenarios.
A lifting structure including a concave shaped frame, a push-sliding rod, a conversion gear set and an eccentric wheel were designed. The compression and loosening control of paper is achieved through the combination of an eccentric wheel and a push-shuo, and the conversion gear set and The chute structure realizes flexible movement in a narrow space.
It realizes flexible control of paper in a small space, provides compression and loosening functions, reduces the space cost and production cost of the structure, is suitable for complex electronic control structures, and improves the flexibility and controllability of the equipment.
Smart Images
Figure CN222136281U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to printing equipment, in particular to a lifting structure used for printing imaging. Background Art
[0002] During the process of carbon ribbon printing and imaging, the paper to be printed needs to be in direct contact with the printing component, and there needs to be enough pressure between the two to utilize the printing component to transfer the color on the carbon ribbon to the paper and push the paper forward or backward at the same time. The whole process can proceed smoothly, so it is necessary to design a corresponding mechanism to provide pressure and driving force for the paper.
[0003] In the prior art, two commonly used technical solutions are: 1. Use rolled spring steel sheets to press the raw materials through the elasticity of the spring steel. When the raw materials pass through the spring steel sheets, the elastic force of the spring steel sheets is used to provide pressure for the raw materials. 2. Use a gear set structure, measure the required distance during design, so that the roller can press the raw materials, and then drive the raw materials to move forward and backward through the gears. For example, the prior art solutions: CN116373481A and CN116985537A are the embodiment of the above two technical solutions, but these two technical solutions have their own shortcomings. The shortcomings of the first technical solution are: 1. It is impossible to control the pressure and distance of the structure on the raw materials, because the solution 1 uses the ability of the spring steel sheet to undergo elastic deformation, so that the spring steel sheet presses the raw materials through its own elastic force after compression, which makes it impossible to use this technical solution on some printing mechanisms that need to perform forward and reverse operations. 2. The spring steel sheet cannot provide a driving force and requires an additional paper roll structure.
[0004] The disadvantages of the second technical solution are: 1. Since the axis spacing is determined at the beginning, the distance between the two sides cannot be changed, so it is not applicable to some application scenarios that require sufficient space for other operations. 2. The structural space cost of this solution is too high and the space required is too large, so this technical solution cannot be used in scenarios with small spaces.
[0005] Because of this, a new technical solution needs to be proposed to improve this problem, so that the structure can not only control the pressure and distance between the raw materials and the control parts, but also enable the structure to be used in narrow usage scenarios, making the structure more flexible and controllable. Summary of the invention
[0006] In order to improve the above defects, the purpose of the utility model is to provide a camera structure design scheme that can enable parts to move up and down in the vertical direction in a narrow camera space. Through the telescopic and folding design, the flexibility of the structure is increased, while the use space of the structure is reduced and a miniature design is achieved.
[0007] The purpose of the utility model is achieved by the following methods:
[0008] A lifting structure for printing imaging, including a frame in a concave shape, with push-stroke swing rods installed near the left and right sides, and a movable roller installed on the push-stroke swing rod. A conversion gear group is movably installed on the bottom surface of the frame, and an eccentric wheel is coaxially connected above the conversion gear group. The eccentric wheel is engaged in an eccentric groove on the pushing shovel, and the pushing shovel is driven to reciprocate in the horizontal direction under the joint action of the eccentric wheel and the eccentric groove.
[0009] In the above description, as a preferred solution, the structure of the pushing shovel also includes an eccentric slide groove, a slide rail, and a trapezoidal structure. The eccentric slide groove is arranged on the rear side of the pushing shovel for engaging the eccentric wheel. The slide rail is arranged on both sides of the front end of the pushing shovel for carrying the push-stroke rocker arm to slide therein. The trapezoidal structure is arranged at the front end of the pushing shovel for pushing the movable rotating shaft to lift.
[0010] In the above description, as a preferred solution, the pushing shovel is also provided with a sliding block, which extends from the left side near the rear end of the pushing shovel, and its function is to enable the pushing shovel to be movably mounted on the frame.
[0011] In the above description, as a preferred solution, the frame is further provided with a barb, which cooperates with the protrusion provided on the side of the pushing shovel to prevent the pushing shovel from detaching from the frame during movement.
[0012] In the above description, as a preferred solution, a slide groove is further provided at the bottom of the frame, and the slider can cooperate with the slide groove to slide back and forth in the frame.
[0013] In the above description, as a preferred solution, the conversion gear group is composed of a first conversion gear, a second conversion gear, and a third conversion gear. The first conversion gear is rotatably connected to the rear of the frame and is used to transmit the power of the motor to the second conversion gear. The second conversion gear is movably installed on the frame, and it is arranged in front of the first conversion gear and meshes with the first conversion gear. The function of the second conversion gear is to increase the gear transmission ratio and transmit the power of the first conversion gear to the third conversion gear. The third conversion gear is rotatably installed at the center position of the frame and meshes with the second conversion gear. Its function is to transmit the power of the second conversion gear to the eccentric wheel.
[0014] In the above description, as a preferred solution, the first conversion gear is divided into two rows of different tooth shapes, the upper layer is a helical gear tooth shape, and the lower layer is a spur gear tooth shape. The upper layer tooth shape is used to mesh with the motor transmission gear, and the lower layer gear is used to mesh with the second conversion gear to transmit the power of the motor to the second conversion gear.
[0015] In the above description, as a preferred solution, the number of teeth of the second conversion gear is greater than the number of teeth of the first conversion gear, which is used to increase the transmission ratio and reduce the gear rotation speed.
[0016] In the above description, as a preferred solution, the push-stroke rocker has two parts, which are respectively installed on both sides of the front end of the frame. The end close to the rear side of the frame is rotatably connected to the frame, and the end close to the front side of the frame is rotatably installed with the movable roller. The middle part is supported by the slide rail to ensure that the end close to the front side does not slide down. The function of the push-stroke rocker is to provide an installation basis for the installation of the movable roller.
[0017] The beneficial effects of the utility model are: the eccentric wheel structure arranged in the horizontal direction is used to control the push shovel so that it can reciprocate in the horizontal direction. At the same time, when the push shovel moves forward, its trapezoidal structure is used to make the push stroke swing rod move up and down, thereby realizing the two states of pressing the paper and releasing the paper. In addition, the installation space required is small and the applicable usage scenarios are many. Secondly, the structural design is simple, and the required production cost and design cost are very small. Finally, the structure is flexible and controllable, and can be applied to complex electric control structures. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 Schematic diagram of the overall structure of the lifting mechanism
[0019] Figure 2 Sectional view of the installation of the slider and the slideway
[0020] Figure 3 Schematic diagram of the overall structure of the conversion gear set
[0021] Figure 4 The initial motion diagram of the eccentric wheel in the eccentric chute
[0022] Figure 5 The motion state diagram of the eccentric wheel in the eccentric slideway
[0023] Figure 6 Motion state diagram of the lifting mechanism in the release state
[0024] Figure 7 This is the motion state diagram of the lifting mechanism in action
[0025] Figure 8 The motion state diagram of the lifting mechanism in the tightened state
[0026] Fig. 9 Schematic diagram of the bottom structure of the rack
[0027] Fig.10 Installation diagram of the rack and conversion gear set
[0028] Fig.11The overall structure diagram of the push shovel and the installation relationship diagram of the eccentric wheel
[0029] Fig.12 Installation diagram of push shovel and push travel swing arm
[0030] Fig.13 Cross-sectional view of the side structure of the push shovel
[0031] Fig.14 This is the relationship diagram between the bottom structure of the frame and the push-stroke swing arm and movable roller installation
[0032] In the figure, 1 is a frame, 11 is a hook, 12 is a slide, 2 is a conversion gear set, 21 is a first conversion gear, 22 is a second conversion gear, 23 is a third conversion gear, 3 is an eccentric wheel, 4 is a push shovel, 41 is an eccentric slide, 42 is a slide rail, 43 is a trapezoidal structure, 44 is a protrusion, 45 is a slider, 5 is a push range swing rod, 6 is a movable roller, and 7 is a thermal printing unit DETAILED DESCRIPTION
[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0034] This embodiment is a color printing camera used for instant photography. It realizes a miniaturized design through a special thermal imaging printing ribbon assembly and the yellow, red and blue ribbons are wound up in a circular manner in sequence. However, the use of ribbons for thermal transfer imaging requires a structure to drive the paper to move and to control the release or compression when necessary.
[0035] Example (reference Figure 1 ), a lifting structure for printing imaging, including a frame 1, a conversion gear set 2, an eccentric wheel 3, a pushing shovel 4, a push-stroke swing rod 5, a movable roller 6, and a thermal printing unit 7. The frame 1 is a concave structure for installing all parts of the lifting mechanism. The conversion gear set 2 is matched with the hole on the bottom surface of the frame 1 through an axis and is rotatably installed on the bottom surface of the frame 1. The eccentric wheel 3 is coaxially connected with the conversion gear set 2, and the power is transmitted to the rotating shaft through the conversion gear set 2. The rotating shaft drives the eccentric wheel 3 to rotate, and the eccentric wheel 3 performs eccentric movement in the eccentric slide groove 41 of the pushing shovel 4, (reference Figure 4 , Figure 5 ) The function of the eccentric wheel 3 is to control the reciprocating motion of the push shovel 4 in the forward and backward directions through the rotation trajectory of the eccentric wheel 3. A slide groove 12 is provided at the bottom of the frame 1 to provide a slide rail for the push shovel 4. (Refer to Figure 2 ) The push shovel 4 is slidably mounted on the frame 1 through the frame 1 slide slot 12, (refer to Fig.13The function of the push shovel 4 is to push the movable roller 6 up after the paper enters the gap between the movable roller 6 and the thermal printing unit 7 through the trapezoidal structure 43 at the front end of the push shovel 4, so that the movable roller 6 and the thermal printing unit 7 clamp the paper and generate vertical pressure on the paper, so that the thermal printing unit 7 transfers the image to the paper (the principle of thermal printing imaging is a prior art and will not be described in detail here), (reference Fig.14 The push-stroke swing rod 5 is rotatably mounted on both sides of the frame 1 through a rotating shaft near one end of the rear side of the frame 1, and one end near the front side of the frame 1 is used to install a movable roller 6, which is rotatably mounted on the push-stroke swing rod 5. Its function is to push the shovel 4 upward to press the paper to the bottom of the thermal printing part 7, and the thermal printing part 7 is fixedly mounted on the frame 1 for transferring images. In summary (reference Figure 6 , Figure 7 , Figure 8 ), a paper rolling mechanism (composed of two movable rollers) is also provided at the front end of the thermal printing section 7 and the movable roller 6. When the paper is rolled between the thermal printing section 7 and the movable roller 6, the motor connected to the conversion gear set 2 is started, and the motor drives the conversion gear set 2 to start rotating. The eccentric wheel 3 coaxially connected to the conversion gear set 2 rotates at the same time, and makes an eccentric motion in the eccentric slide groove 41 on the pushing shovel 4, so that the pushing shovel 4 moves forward in the front and rear directions. When the trapezoidal structure 43 at the front end of the pushing shovel 4 pushes the movable roller 6 to move upward, the movable roller 6 presses the paper to the bottom of the thermal printing section 7, and then the thermal printing section 7 starts to print images, and then the imaged paper is pulled forward by the front end paper rolling mechanism, and at the same time, the ribbon assembly colors the paper until all the imaging ranges on the paper are colored and the operation of the mechanism is stopped. When the paper coloring is completed, the eccentric wheel 3 enters the return state, and as the eccentric wheel 3 drives the pushing shovel 4 to move backward, the movable roller 6 drops and releases the paper, so that the paper is no longer transferred by the thermal printing section 7. Through three identical movements, all three colors are imaged on the paper, thus forming a color photo. Through this structure, the movable roller 6 can move up and down in a narrow space, which not only provides pressure upward and drives the paper, but also realizes a controlled descent, releases the paper, and allows the paper to return to its original position to prepare for the next printing.
[0036] Example (reference Figure 3 , Fig.10), the conversion gear set 2 also includes a first conversion gear 21, a second conversion gear 22, and a third conversion gear 23. The first conversion gear 21 is rotatably connected to the rear of the frame 1 through a corresponding rotating shaft, and its back is close to the bottom surface of the frame 1. The first conversion gear 21 is used to transmit the power of the motor to the second conversion gear 22. The second conversion gear 22 is rotatably installed on the frame 1, and its back is close to the bottom surface of the frame 1. It is located in front of the first conversion gear 21 and meshes with the first conversion gear 21. The function of the second conversion gear 22 is to increase the gear transmission ratio, reduce the number of gear rotation circles, and thus increase the stroke. At the same time, it also has the function of transmitting the power of the first conversion gear 21 to the third conversion gear 23. The third conversion gear 23 is rotatably installed at the center position of the frame 1 through a corresponding rotating shaft, and its back is close to the bottom surface of the frame 1 and meshes with the second conversion gear 22. The function of the third conversion gear 23 is to transmit the power of the second conversion gear 22 to the rotating shaft, and drive the eccentric wheel 3 to rotate through the rotating shaft.
[0037] Example (reference Fig.11 , Fig.12 ), the structure of the pushing shovel 4 also includes an eccentric slide groove 41, a slide rail 42, and a trapezoidal structure 43. The eccentric slide groove 41 is arranged at the rear side of the pushing shovel 4, and its diameter is consistent with the diameter of the eccentric wheel 3, and is used to engage the eccentric wheel 3, thereby driving the pushing shovel 4 to reciprocate through the eccentric movement of the eccentric wheel 3. The slide rail 41 is arranged on both sides of the pushing shovel 4, and is used to carry the sliding movement of the push-stroke swing rod 5 therein. The trapezoidal structure 43 is arranged at the front end of the pushing shovel 4, and is in the shape of a right-angle trapezoid, and its inclined surface is directly in contact with the movable roller 6. When the pushing shovel 4 moves forward, the movable roller 6 is lifted due to the increase in the inclination of the inclined surface, and when the pushing shovel 4 moves backward, the inclination of the inclined surface decreases, and the movable roller 6 also decreases accordingly.
[0038] Example (reference Figure 6 , Figure 7 , Figure 8 , Fig.14 ), the push-range swing rod 5 has two parts, which are respectively installed on both sides of the front end of the frame 1. It is a rocker arm. The end near the rear side of the frame 1 is rotatably connected to the frame 1 through the cooperation of the shaft and the hole, and the end near the front side is rotatably installed with the movable roller 6. The middle of the push-range swing rod 5 is supported by the slide rail 42 to ensure that the end near the rear side does not slide down. The function of the push-range swing rod 5 is to provide an installation foundation for the installation of the movable roller 6, and through the characteristics of its rocker arm, the movable roller 6 can follow the movement of the push shovel 4 to make a pendulum motion. Thus, the relaxation and compression functions are realized.
[0039] Example (reference Figure 2 , Fig. 9 , Fig.11), a protrusion 44 is also provided on the left side of the pushing shovel 4, which is used to fix the pushing shovel 4. The frame 1 is also provided with a barb 11, which cooperates with the protrusion 44 to fix the pushing shovel 4 and prevent the pushing shovel 4 from detaching from the frame 1 during movement. A slider 45 extends from the rear end of the left side of the pushing shovel 4, and the slider 45 cooperates with the slide groove 12, so that the pushing shovel 4 slides in the frame 1 in the front and rear directions.
Claims
1. A lifting structure for printing imaging, comprising a frame (1) in a concave shape, with push-stroke swing rods (5) installed on the left and right sides near the front end, and a movable roller (6) installed on the push-stroke swing rod (5), characterized in that: A conversion gear set (2) is movably mounted on the bottom surface of the frame (1), and an eccentric wheel (3) is coaxially connected above the conversion gear set (2). The eccentric wheel (3) is engaged in an eccentric groove (41) on the pushing shovel (4), and the pushing shovel (4) is driven to reciprocate in the horizontal direction by the combined action of the eccentric wheel (3) and the eccentric groove (41).
2. The lifting structure for printing and imaging as claimed in claim 1, characterized in that: The structure of the pushing shovel (4) further comprises an eccentric slide groove (41), a slide rail (42), and a trapezoidal structure (43). The eccentric slide groove (41) is arranged at the rear side of the pushing shovel (4) and is used to engage the eccentric wheel (3). The slide rail (42) is arranged on both sides of the front end of the pushing shovel (4) and is used to carry the push-stroke swing rod (5) to slide therein. The trapezoidal structure (43) is arranged at the front end of the pushing shovel (4) and is used to push the movable rotating shaft to rise.
3. The lifting structure for printing and imaging as claimed in claim 2, characterized in that: The pushing shovel (4) is also provided with a sliding block (45), which extends from the left side near the rear end of the pushing shovel (4) and has the function of enabling the pushing shovel (4) to be movably mounted on the frame (1).
4. The lifting structure for printing and imaging as claimed in claim 3, characterized in that: The frame (1) is also provided with a barb (11), and a protrusion (44) is also provided on the left side of the push shovel (4) to prevent the push shovel (4) from detaching from the frame (1) during movement.
5. The lifting structure for printing and imaging as claimed in claim 4, characterized in that: The bottom of the frame (1) is also provided with a slide groove (12), and the slider (45) can cooperate with the slide groove (12) to slide forward and backward in the frame (1).
6. The lifting structure for printing and imaging as claimed in claim 1, characterized in that: The conversion gear set (2) is composed of a first conversion gear (21), a second conversion gear (22), and a third conversion gear (23). The first conversion gear (21) is connected to the rear of the frame (1) by rotation and is used to transmit the power of the motor to the second conversion gear (22). The second conversion gear (22) is movably mounted on the frame (1) and is located in front of the first conversion gear (21) and meshes with the first conversion gear (21). The function of the second conversion gear (22) is to increase the gear transmission ratio and transmit the power of the first conversion gear (21) to the third conversion gear (23). The third conversion gear (23) is rotatably mounted at the center of the frame (1) and meshes with the second conversion gear (22). The function of the third conversion gear (23) is to transmit the power of the second conversion gear (22) to the eccentric wheel (3).
7. The lifting structure for printing and imaging as claimed in claim 6, characterized in that: The first conversion gear (21) is divided into two rows of upper and lower teeth with different tooth shapes, the upper layer having a helical gear tooth shape and the lower layer having a spur gear tooth shape, the upper layer having a tooth shape for meshing with the motor transmission gear and the lower layer having a tooth shape for meshing with the second conversion gear (22) to transmit the power of the motor to the second conversion gear (22).
8. The lifting structure for printing and imaging as claimed in claim 7, characterized in that: The number of teeth of the second conversion gear (22) is greater than the number of teeth of the first conversion gear, and is used to increase the transmission ratio and reduce the gear rotation speed.
9. The lifting structure for printing and imaging as claimed in claim 2, characterized in that: The push-range swing rod (5) comprises two parts, which are respectively mounted on both sides of the front end of the frame (1). One end close to the rear side of the frame (1) is rotatably connected to the frame (1), and the other end close to the front side of the frame (1) is rotatably mounted on the movable roller (6). The middle part is supported by the slide rail (42) to ensure that the end close to the front side does not slide down. The function of the push-range swing rod (5) is to provide an installation base for the installation of the movable roller (6).