A printer feed limit unit
By using an innovative design of support frame and limiting components in the printer's feeding structure, the problems of uneven frictional resistance and inaccurate limiting are solved, achieving efficient and stable material feeding and printing accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI GRANDO DIGITAL TECH CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional printers suffer from uneven frictional resistance in their feeding structure, leading to jamming and wrinkling. They also lack an effective lateral guiding mechanism, and the limiting components cannot adapt to materials of different sizes, resulting in low printing accuracy and efficiency.
The material conveying roller and guide plate are connected by equal intervals on the inner surface of the support frame. The support frame has a right-angled triangular cross section. It works with the cylinder to push the limit plate for precise positioning. The slider and slide rail are symmetrically distributed to improve stability.
Reduce frictional resistance, avoid jamming, improve feeding efficiency, achieve precise lateral positioning of materials, adapt to materials of different sizes, extend the life of the conveyor roller, and improve printing accuracy and efficiency.
Smart Images

Figure CN224429135U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printer technology, specifically to a printer feeding limit unit. Background Technology
[0002] As an indispensable output device in modern offices and homes, the printer's development has evolved alongside the advancement of information technology. The core function of a printer is to convert digital information from electronic devices into visible images or text on physical media such as paper. Its origins can be traced back to ancient copying techniques, but the birth of the modern printer is inseparable from the integration of mechanical engineering and electronic technology. In the automated production process of printers, the stability of feeding and limiting directly affects printing accuracy and production efficiency, and is one of the core performance indicators of the equipment.
[0003] Traditional feeding structures often employ a single conveyor roller or flat slide design. During the conveying process, the material is prone to jamming and wrinkling due to uneven frictional resistance. Furthermore, the lack of an effective lateral guiding mechanism results in a large initial positional deviation of the material, directly affecting the accuracy of subsequent printing processes. In addition, current limit components mostly use fixed blocks or manual adjustment structures, which cannot adapt to materials of different sizes, leading to deviations in limit accuracy, lateral offset of the material, or vertical tilting. In severe cases, this can even cause misalignment of the printed pattern, resulting in material waste. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a printer feeding limit unit, which can effectively solve the problems in the prior art.
[0005] The technical solution adopted by this utility model is as follows: a printer feeding limiting unit includes a base plate and a bracket located on the top of the base plate. A feeding component is provided at one end of the base plate near the bracket. A conveying unit is provided on one side of the feeding component near the bracket. A Y-axis displacement module is provided at one end of the conveying unit near the feeding component. A clamping component is fixedly installed at one end of the Y-axis displacement module away from the conveying unit. A limiting component fixedly installed on the base plate is provided between the feeding component and the conveying unit. A Z-axis displacement module is fixedly installed at one end of the conveying unit near the base plate. A printing unit is slidably installed at one end of the bracket near the base plate. An X-axis displacement module is provided between the printing unit and the bracket. An output unit is fixedly installed at the top of the base plate away from the feeding component.
[0006] Preferably, the feeding assembly includes a fixed frame, a support frame is fixedly installed at one end of the fixed frame away from the base plate, a plurality of conveying rollers are rotatably connected at equal intervals on the inner surface of the support frame, and guide plates are fixedly installed at both ends of the support frame away from the fixed frame.
[0007] Through the above technical solution, several sets of conveying rollers are rotatably connected at equal intervals on the inner surface of the support frame. When the material to be printed is put into the feeding component, the multiple sets of conveying rollers can reduce the frictional resistance during material conveying, and together with the guide plate, avoid jamming during material transportation and improve the feeding efficiency.
[0008] Preferably, the cross-section of the support frame is a right-angled triangle, and the inclined surface of the support frame is close to one end of the guide plate and is inclined downward from the feed port to the limiting component.
[0009] The above technical solution uses a right-angled triangle structure for the cross-section of the support frame. This structure effectively improves the support strength of the support frame and prevents the material from being too heavy and affecting the printing effect. The downward-sloping surface at the top of the support frame allows the material to be transported by its own weight, reducing the power requirements of the conveying roller and thus extending its service life.
[0010] Preferably, the limiting component includes a second fixing frame, a connecting block is fixedly installed at one end of the second fixing frame near the feeding component, an mounting plate is fixedly installed at the end of the connecting block away from the second fixing frame, a cylinder and a fixing seat are fixedly installed at the end of the mounting plate near the second fixing frame, a push plate is fixedly installed at the movable end of the cylinder, a slider is fixedly installed at the end of the fixing seat away from the mounting plate, a limiting plate is fixedly installed at the end of the push plate away from the mounting plate, and a slide rail is fixedly installed at the end of the limiting plate near the mounting plate.
[0011] The above technical solution effectively limits the material on the feeding component by setting a limiting component, thereby cooperating with the clamping component to clamp the material.
[0012] Preferably, the slide rails are provided in two identical sets, and the two sets of slide rails are symmetrically distributed on the limiting plate. The sliders are provided in two identical sets, and the two sets of sliders are provided in two identical sets on the mounting plate. Each set of sliders has two identical sliders, and the sliders are slidably connected to the slide rails.
[0013] The above technical solution facilitates the rapid adjustment of the limiting plate by using two sets of symmetrically distributed sliders and slide rails, avoiding tilting of the limiting plate due to unilateral force. Furthermore, the inclusion of two identical sliders in each set increases the contact area between the limiting plate and the mounting plate, thereby improving the stability of the limiting plate during movement.
[0014] Preferably, the limiting plate is perpendicular to the feeding assembly, and the limiting plate can extend above the feeding assembly.
[0015] The above technical solution, with the limiting plate and the feeding component vertically distributed, can accurately limit the material laterally to prevent it from falling. In addition, the length of the cylinder extending from the limiting plate makes it easy to limit materials of different sizes, thus broadening the applicability of the device.
[0016] Compared with the prior art, the present invention provides a printer feeding limit unit, which has the following advantages:
[0017] 1. The printer's feeding limit unit has a support frame with a right-angled triangle cross-section. The right-angled triangle structure can effectively improve the support strength of the support frame and prevent the material from being too heavy and affecting the printing effect. Through the downward inclined surface at the top of the support frame, the material can be conveyed towards the limit component by its own weight, reducing the power demand of the conveying roller and thus extending the service life of the conveying roller.
[0018] 2. The printer's feeding limit unit uses a start cylinder. The moving end of the cylinder pushes the push plate, causing the limit plate to move. Because the limit plate is perpendicular to the feeding component, it can accurately limit the material laterally, preventing the material from falling. Two sets of symmetrically distributed sliders and slide rails facilitate quick adjustment of the limit plate, avoiding tilting of the limit plate due to unilateral force. The fact that each set of sliders has two identical ones increases the contact area between the limit plate and the mounting plate, improving the stability of the limit plate during movement. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;
[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;
[0021] Figure 3 This is a schematic diagram of the internal structure of the base plate of this utility model;
[0022] Figure 4 This is a three-dimensional structural diagram of the feeding assembly of this utility model;
[0023] Figure 5 This is a three-dimensional structural diagram of the limiting component of this utility model. Figure 1 ;
[0024] Figure 6 This is a three-dimensional structural diagram of the limiting component of this utility model. Figure 2 .
[0025] The components are as follows: 1. Base plate; 2. Feeding assembly; 201. Fixing frame one; 202. Support frame; 203. Feeding roller; 204. Guide plate; 3. Feeding unit; 4. Y-axis displacement module; 5. Clamping assembly; 6. Limiting assembly; 601. Fixing frame two; 602. Connecting block; 603. Mounting plate; 604. Cylinder; 605. Push plate; 606. Fixing seat; 607. Slider; 608. Limiting plate; 609. Slide rail; 7. Z-axis displacement module; 8. Bracket; 9. X-axis displacement module; 10. Printing unit; 11. Discharge unit. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Example 1: As Figure 1-6 As shown, the present invention provides a printer feeding limiting unit, including a base plate 1 and a bracket 8 located on the top of the base plate 1. A feeding component 2 is provided at one end of the base plate 1 near the bracket 8. A conveying unit 3 is provided on one side of the feeding component 2 near the bracket 8. A Y-axis displacement module 4 is provided at one end of the conveying unit 3 near the feeding component 2. A clamping component 5 is fixedly installed at the end of the Y-axis displacement module 4 away from the conveying unit 3. A limiting component 6 fixedly installed on the base plate 1 is provided between the feeding component 2 and the conveying unit 3. A Z-axis displacement module 7 is fixedly installed at one end of the conveying unit 3 near the base plate 1. A printing unit 10 is slidably installed at one end of the bracket 8 near the base plate 1. An X-axis displacement module 9 is provided between the printing unit 10 and the bracket 8. An output unit 11 is fixedly installed at the top of the base plate 1 away from the feeding component 2.
[0028] Specifically, the feeding assembly 2 includes a fixed frame 201, a support frame 202 fixedly mounted at the end of the fixed frame 201 away from the base plate 1, a plurality of conveying rollers 203 rotatably connected at equal intervals on the inner surface of the support frame 202, and guide plates 204 fixedly mounted at both ends of the support frame 202 away from the fixed frame 201. The advantage is that, by rotatably connecting the plurality of conveying rollers 203 at equal intervals on the inner surface of the support frame 202, when the material to be printed is placed into the feeding assembly 2, the multiple sets of conveying rollers 203 can reduce the frictional resistance during material conveying, and, in conjunction with the guide plates 204, prevent jamming during material transport, thereby improving feeding efficiency.
[0029] Specifically, the support frame 202 has a right-angled triangle cross-section. The inclined surface of the support frame 202 is near the end of the guide plate 204 and is inclined downwards from the feed inlet to the limiting component 6. The advantage is that by setting the cross-section of the support frame 202 to a right-angled triangle structure, the support strength of the support frame 202 can be effectively improved, preventing excessive material weight from affecting the printing effect. Furthermore, the downward-sloping top surface of the support frame 202 allows for material transport aided by its own gravity, reducing the power demand on the conveyor roller 203 and thus extending its service life.
[0030] Example 2: Figure 2-6 As shown, this is an improvement on the previous embodiment.
[0031] Specifically, the limiting component 6 includes a second fixing frame 601. A connecting block 602 is fixedly installed at one end of the second fixing frame 601 near the feeding component 2. An mounting plate 603 is fixedly installed at the end of the connecting block 602 away from the second fixing frame 601. A cylinder 604 and a fixing seat 606 are fixedly installed at the end of the mounting plate 603 near the second fixing frame 601. A push plate 605 is fixedly installed at the movable end of the cylinder 604. A slider 607 is fixedly installed at the end of the fixing seat 606 away from the mounting plate 603. A limiting plate 608 is fixedly installed at the end of the push plate 605 away from the mounting plate 603. A slide rail 609 is fixedly installed at the end of the limiting plate 608 near the mounting plate 603. The advantage is that by setting the limiting component 6, the material on the feeding component 2 can be effectively limited, thereby cooperating with the clamping component 5 to clamp the material.
[0032] Specifically, two identical sets of slide rails 609 are provided, symmetrically distributed on the limiting plate 608. Two identical sets of sliders 607 are also provided on the mounting plate 603, with two identical sliders in each set. The sliders 607 are slidably connected to the slide rails 609. The advantages are that the symmetrically distributed sliders 607 and slide rails 609 facilitate rapid adjustment of the limiting plate 608, preventing tilting of the limiting plate 608 due to unilateral force. Furthermore, the inclusion of two identical sliders in each set increases the contact area between the limiting plate 608 and the mounting plate 603, improving the stability of the limiting plate 608 during movement.
[0033] Specifically, the limiting plate 608 is perpendicular to the feeding assembly 2, and the limiting plate 608 can extend above the feeding assembly 2. The advantage is that by perpendicularly positioning the limiting plate 608 to the feeding assembly 2, the material can be precisely limited laterally to prevent it from falling. Furthermore, the extension of the limiting plate 608 by the cylinder 604 facilitates the limiting of materials of different sizes, thus expanding the applicability of the device.
[0034] Working principle: In use, the material is first placed into the feeding assembly 2. The fixing frame 201 provides stable support for the entire feeding assembly 2. By setting the cross-section of the support frame 202 to a "right-angled triangle" structure, the right-angled triangle structure can effectively improve the support strength of the support frame 202 and prevent the material from being too heavy and affecting the printing effect. Through the downward inclined surface of the top of the support frame 202, the material can be conveyed towards the limiting assembly 6 by its own gravity, reducing the power requirement of the conveying roller 203 and thus extending the service life of the conveying roller 203. At this time, the cylinder 604 is activated. The moving end of the cylinder 604 pushes the push plate 605 to move the limiting plate 608. The limiting plate 608 is perpendicular to the feeding assembly 2. It can precisely limit the material laterally to prevent it from falling. Two sets of symmetrically distributed sliders 607 and slide rails 609 facilitate the quick adjustment of the limiting plate 608, avoiding tilting of the limiting plate 608 due to unilateral force. The fact that each set of sliders 607 has two identical ones increases the contact area between the limiting plate 608 and the mounting plate 603, improving the stability of the limiting plate 608 during movement. Subsequently, the clamping component 5 clamps the material and sends it to the printing unit 10 for printing. The printing unit 10 can achieve free lateral displacement in the X-axis displacement module 9. The printed material is transported to the discharge unit 11 through the Z-axis displacement module 7, completing the entire printing process.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A printer feeding limiting unit, comprising a base plate (1) and a bracket (8) located on top of the base plate (1), characterized in that: A feeding assembly (2) is provided at one end of the base plate (1) near the support (8). A conveying unit (3) is provided on one side of the feeding assembly (2) near the support (8). A Y-axis displacement module (4) is provided at one end of the conveying unit (3) near the feeding assembly (2). A clamping assembly (5) is fixedly installed at one end of the Y-axis displacement module (4) away from the conveying unit (3). A limiting assembly (6) fixedly installed on the base plate (1) is provided between the feeding assembly (2) and the conveying unit (3). A Z-axis displacement module (7) is fixedly installed at one end of the conveying unit (3) near the base plate (1). A printing unit (10) is slidably installed at one end of the support (8) near the base plate (1). An X-axis displacement module (9) is provided between the printing unit (10) and the support (8). A discharge unit (11) is fixedly installed at the top of the base plate (1) away from the feeding assembly (2).
2. The printer feeding limiting unit according to claim 1, characterized in that: The feeding assembly (2) includes a fixed frame (201), a support frame (202) is fixedly installed at one end of the fixed frame (201) away from the bottom plate (1), a number of conveying rollers (203) are rotatably connected at equal intervals on the inner surface of the support frame (202), and guide plates (204) are fixedly installed at both ends of the support frame (202) away from the fixed frame (201).
3. The printer feeding limiting unit according to claim 2, characterized in that: The cross-section of the support frame (202) is a right triangle structure. The inclined surface of the support frame (202) is close to one end of the guide plate (204) and is inclined downward from the feed port to the limiting component (6).
4. The printer feeding limiting unit according to claim 1, characterized in that: The limiting component (6) includes a second fixing frame (601). A connecting block (602) is fixedly installed at one end of the second fixing frame (601) near the feeding component (2). An mounting plate (603) is fixedly installed at the end of the connecting block (602) away from the second fixing frame (601). A cylinder (604) and a fixing seat (606) are fixedly installed at one end of the mounting plate (603) near the second fixing frame (601). A push plate (605) is fixedly installed at the movable end of the cylinder (604). A slider (607) is fixedly installed at one end of the fixing seat (606) away from the mounting plate (603). A limiting plate (608) is fixedly installed at one end of the push plate (605) away from the mounting plate (603). A slide rail (609) is fixedly installed at one end of the limiting plate (608) near the mounting plate (603).
5. A printer feeding limiting unit according to claim 4, characterized in that: The slide rails (609) are provided in two identical sets, and the two sets of slide rails (609) are symmetrically distributed on the limiting plate (608). The sliders (607) are provided in two identical sets, and the two sets of sliders (607) are provided on the mounting plate (603). Each set of sliders (607) has two identical sliders. The sliders (607) and the slide rails (609) are slidably connected.
6. A printer feeding limiting unit according to claim 4, characterized in that: The limiting plate (608) is perpendicular to the feeding assembly (2), and the limiting plate (608) can extend above the feeding assembly (2).