A protective structure for printing on shoe tongues
By protecting the printed material on the shoe tongue with a PE film in the limiting frame and protective components, the problem of tearing and exposing the white material during sewing is solved, achieving an efficient and stable sewing process and improving the aesthetics and production efficiency of the shoe tongue.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG ZHANCHENG YANCHUANG TECH CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-06-30
AI Technical Summary
The existing printed material on shoe tongues is prone to tearing and exposing the white part during the sewing process, resulting in low sewing efficiency and reduced aesthetics. In addition, it requires additional ink treatment to cover up the defects, which affects production efficiency and cost.
The system employs a limiting frame and protective components, particularly PE film. The protective components include an unwinding frame, a rewinding frame, and the PE film. The limiting frame provides stable positioning, and the PE film protects the printed material during the sewing process, preventing pinhole damage. The PE film is automatically rewound by a motor, reducing manual operation.
It effectively prevents the printed material from tearing and showing white during the sewing process, improves the appearance of the shoe tongue and product quality, increases sewing efficiency, reduces production costs and time, and ensures the accuracy and stability of the sewing.
Smart Images

Figure CN224430918U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shoe manufacturing, specifically a protective structure for printing on shoe tongues. Background Technology
[0002] Decorative prints on the shoe tongue are an indispensable element in footwear design. They not only significantly enhance the aesthetics of the shoes but also effectively convey brand information or meet consumers' personalized needs. When designing, attention should be paid to the coordination with the overall style of the shoes, and the details such as the lines, colors, and fonts of the prints should be carefully handled. At the same time, durability should be considered to ensure that the prints are not easily detached or worn during frequent use.
[0003] Currently, shoe tongues are all sewn with printed text, mostly decorative pieces or information carriers, to enhance their appearance and display shoe size and label information. In actual production, the shoe tongue needs to be sewn to the printed text to quickly install these pieces and improve the shoe tongue's marketability. However, a problem exists: the printed text uses an oil-based printing process, which can cause damage and exposed areas at the pinholes after sewing, reducing the aesthetic appeal of the printed text. To avoid production stoppages, production must continue while the exposed areas are treated with ink, which takes a long time, reducing the efficiency of sewing the printed text on the shoe tongue and consequently lowering overall shoe production efficiency. Utility Model Content
[0004] Based on this, the purpose of this utility model is to provide a protective structure for printing on shoe tongues, in order to solve the technical problem that when traditional printed materials are sewn, there are issues such as tearing and white exposure, which require additional personnel to apply ink to repair the exposed areas. This is not only time-consuming, but also significantly reduces the sewing efficiency of the printed shoe tongue.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective structure for printing on shoe tongues, including a workbench, a shoe tongue, and a printing body. A limiting frame is installed on the workbench, and protective components are installed on both sides of the limiting frame. The protective components include an unwinding frame, a rewinding frame, and a PE film. The unwinding frame and the rewinding frame realize the unwinding and rewinding operations of the PE film. A pressure frame is provided above the limiting frame. The limiting frame, shoe tongue, printing body, PE film, and pressure frame are arranged sequentially from bottom to top.
[0006] By adopting the above technical solution, a limiting frame is installed on the workbench, providing a stable positioning base for the placement of the shoe tongue and the printed body, ensuring accuracy during the sewing process. At the same time, the protective components installed on both sides of the limiting frame, especially the introduction of PE film, provide an effective protective layer for the printed body, avoiding direct damage to the printed body from pinholes during sewing, and significantly improving the aesthetics of the shoe tongue and the quality of the product.
[0007] Furthermore, a first shaft and a second shaft are rotatably mounted on the inner sides of the unwinding frame and the winding frame, respectively, and the first shaft is rotatably connected to the unwinding frame through a damping bearing.
[0008] By adopting the above technical solutions, the unwinding and rewinding process of PE film becomes smoother, reducing jamming and pulling phenomena and protecting the integrity of PE film.
[0009] Furthermore, a motor is installed on one side of the winding frame, and the output end of the motor is connected to the second shaft for transmission.
[0010] By adopting the above technical solution, the PE film winding process has been automated, which greatly improves production efficiency. Operators can drive the motor through an external controller to realize the PE film winding operation.
[0011] Furthermore, the outer sides of the first shaft and the second shaft are respectively fitted with an unwinding drum and a winding drum, and one side of the unwinding frame and the winding frame are open, forming a channel for the drum to access the inner side of the unwinding frame and the winding frame.
[0012] By adopting the above technical solution, a stable support structure is provided for the unwinding and rewinding of PE film, ensuring the flatness and stability of PE film during transmission.
[0013] Furthermore, a sliding plate is engaged and slidable on the limiting frame, and a limiting groove is provided on the sliding plate to limit the position of the shoe tongue. A protruding strip is provided on one side of the sliding plate as the point where the operator applies force to the sliding plate.
[0014] By adopting the above technical solution, the limiting groove can accurately limit the position of the shoe tongue, ensuring the accuracy and stability of the shoe tongue during the sewing process. At the same time, the protrusion on one side of the sliding plate provides the operator with a clear point of force application, which facilitates quick and accurate adjustment of the position of the sliding plate and improves the operating efficiency.
[0015] Furthermore, one side of the pressure frame is detachably connected to the pneumatic drive mechanism on the computer vehicle via a mounting plate, thereby controlling the longitudinal position movement of the pressure frame.
[0016] By adopting the above technical solution, the longitudinal position movement of the pressure frame becomes more flexible and precise. At the same time, it is also convenient to quickly replace or adjust the pressure frame according to production needs, thereby improving the adaptability and versatility of the equipment.
[0017] In summary, the present invention has the following main advantages:
[0018] 1. This utility model, through its protective component, prevents the printed material from being directly pulled by the needle holes of the printed material during the sewing process. This is because the printed material is placed between the shoe tongue and the PE film, and the PE film plays a crucial role in resisting pressure and protecting the material. This effectively prevents defects such as tearing, white exposure, and flipping up from occurring. This not only significantly improves the aesthetics of the shoe tongue but also strengthens the bond between the printed material and the shoe tongue, extending the lifespan of the shoes. At the same time, the application of this protective structure greatly reduces the ink application process in traditional operations. In the past, in order to cover up possible tearing or white exposure during the sewing process, additional ink application was required, which not only increased production costs but also reduced production efficiency. Now, thanks to the protective effect of the PE film, this step is effectively omitted, thereby significantly improving the sewing efficiency between the shoe tongue and the printed material, reducing production costs, and improving overall production efficiency.
[0019] 2. This utility model uses a sliding plate that engages and slides on the limiting frame, making the placement and positioning of the shoe tongue more precise and convenient. The limiting groove on the sliding plate can strictly limit the position of the shoe tongue, ensuring that the shoe tongue will not shift or move during the sewing process, thereby improving the accuracy and stability of sewing, avoiding sewing errors or defective products caused by improper shoe tongue position, and improving product quality. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a schematic diagram showing the position and structure of the shoe tongue and printed body of this utility model;
[0022] Figure 3 This is a schematic diagram of the main structure of this utility model;
[0023] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.
[0024] In the diagram: 1. Workbench; 2. Limiting frame; 3. Shoe tongue; 4. Printed body; 5. Pressing frame; 6. Protective components; 601. Unwinding frame; 602. Rewinding frame; 603. Unwinding drum; 604. PE film; 605. Motor; 606. First shaft; 607. Second shaft; 7. Mounting plate; 8. Sliding plate; 9. Raised strip. Detailed Implementation
[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0026] Example 1:
[0027] A protective structure for printing on shoe tongues, such as Figure 1-4 As shown, the device includes a workbench 1, a shoe tongue 3, and a printed body 4. A limit frame 2 is installed on the workbench 1, and protective components 6 are installed on both sides of the limit frame 2. The protective components 6 include an unwinding frame 601, a winding frame 602, and a PE film 604. The unwinding frame 601 and the winding frame 602 realize the unwinding and winding operations of the PE film 604. A pressure frame 5 is set above the limit frame 2. The limit frame 2, shoe tongue 3, printed body 4, PE film 604, and pressure frame 5 are arranged in order from bottom to top. The limit frame 2 is installed on the workbench 1 to protect the shoe tongue 3 and the shoe tongue 4. The placement of the printed body 4 provides a stable positioning base, ensuring accuracy during the sewing process. Meanwhile, the protective components 6 installed on both sides of the limiting frame 2, especially the introduction of PE film 604, provide an effective protective layer for the printed body 4, avoiding direct damage to the printed body from pinholes during sewing, significantly improving the aesthetics of the shoe tongue and product quality. In addition, the pressure frame 5 set above the limiting frame 2, arranged sequentially from bottom to top with the components below, ensures tight cooperation between the components during sewing, further enhancing the protective effect.
[0028] See Figure 1 , Figure 3 , Figure 4 The unwinding frame 601 and the rewinding frame 602 are respectively rotatably mounted with a first shaft 606 and a second shaft 607. The first shaft 606 is rotatably connected to the unwinding frame 601 through a damping bearing, which makes the unwinding and rewinding process of the PE film 604 smoother, reduces jamming and pulling phenomena, protects the integrity of the PE film, and also makes it easy for operators to adjust the tension of the PE film through the damping bearing, ensuring that the PE film can tightly adhere to the printed body 4 during the sewing process, providing the best protective effect.
[0029] See Figure 1 , Figure 3 A motor 605 is installed on one side of the winding frame 602. The output end of the motor 605 is connected to the second shaft 607 for transmission, realizing the automation of the PE film 604 winding process, which greatly improves production efficiency. The operator can drive the motor 605 through an external controller to realize the winding operation of the PE film 604. At the same time, the precise control of the motor 605 also ensures the uniformity of PE film winding, avoiding the loosening or wrinkling of PE film caused by uneven winding, further improving the protective effect. In addition, the use of motors also reduces the tediousness and error of manual operation, and improves the stability and reliability of the production process.
[0030] See Figure 3 , Figure 4The first shaft 606 and the second shaft 607 are respectively fitted with an unwinding drum 603 and a take-up drum. One side of the unwinding frame 601 and the take-up frame 602 are open, forming a channel for the drum to access the inside of the unwinding frame 601 and the take-up frame 602. This provides a stable support structure for the unwinding and take-up of the PE film 604, ensuring the flatness and stability of the PE film during transmission. At the same time, the open structure on one side of the unwinding frame 601 and the take-up frame 602 forms a channel for the drum to access the inside, which facilitates the replacement and maintenance of the unwinding and take-up drums by the operators, improving the flexibility and service life of the equipment.
[0031] Example 2:
[0032] See Figure 1 , Figure 2 A sliding plate 8 is engaged and slids on the limiting frame 2. The sliding plate 8 has a limiting groove that limits the position of the shoe tongue 3. A protruding strip 9 is provided on one side of the sliding plate 8, which is the point of force application for the operator on the sliding plate 8. The limiting groove can accurately limit the position of the shoe tongue 3, ensuring the accuracy and stability of the shoe tongue during the sewing process. At the same time, the protruding strip 9 on one side of the sliding plate 8 provides the operator with a clear point of force application, which facilitates quick and accurate adjustment of the position of the sliding plate 8 and improves the operating efficiency. In addition, the sliding plate 8 also makes the placement and removal of the shoe tongue more convenient and reduces the downtime in the production process.
[0033] See Figure 1 , Figure 2 One side of the pressure frame 5 is detachably connected to the pneumatic drive mechanism on the computer car via the mounting plate 7, which controls the longitudinal position movement of the pressure frame 5, making the longitudinal position movement of the pressure frame more flexible and precise. At the same time, it is also convenient to quickly replace or adjust the pressure frame according to production needs, improving the adaptability and versatility of the equipment. In addition, the use of the pneumatic drive mechanism reduces the effort and fatigue of manual operation, improving the comfort and safety of the production process. During the sewing process, the precise control of the pressure frame also ensures the tight cooperation between the components, further improving the protective effect and product quality.
[0034] The implementation principle of this embodiment is as follows: First, by applying force to the convex strip 9, the sliding plate 8 is slid to one side. Then, the shoe tongue 3 is positioned in the limiting groove formed on the surface of the sliding plate 8. Next, the sliding plate 8 is pushed back to the inside of the limiting frame 2, so that the shoe tongue 3 and the pressure frame 5 are in a vertically opposite structure. Then, the printed body 4 is placed between the PE film 604 and the shoe tongue 3, and the printed body 4 is positioned opposite the pressure frame 5. Then, the driving mechanism is used to press the pressure frame 5 downward to press the shoe tongue 3, the printed body 4, and the PE film 604 together. Then, the computer sewing machine is used to sew the shoe tongue 3, the printed body 4, and the PE film 604 together. During the sewing process, the position of the printed body 4 is adjusted accordingly. Between the shoe tongue 3 and the PE film 604, the PE film 604 provides pressure protection for the printed body 4, preventing the needle from pulling on the needle hole of the printed body 4 during the sewing process, thus avoiding tearing, exposure, or flipping. After the sewing is completed, the pressure frame 5 is moved upward to relieve pressure on the shoe tongue 3, the printed body 4, and the PE film 604. Then, the shoe tongue 3 and the printed body 4 are removed, and the PE film 604 is cleaned to prevent the PE film 604 from adhering to the shoe tongue 3 during sewing. Subsequently, the motor 605 drives the second shaft 607 to perform a winding operation on the PE film 604, aligning the undamaged portion of the PE film 604 with the pressure frame 5 to facilitate the next sewing operation.
[0035] In this embodiment, the pneumatic drive mechanism used to control the longitudinal position movement of the pressure frame is a conventional technology application, and therefore will not be described in detail here.
[0036] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A protective structure for printing on shoe tongues, comprising a worktable (1), a shoe tongue (3), and a printing body (4), characterized in that: A limiting frame (2) is installed on the workbench (1). Protective components (6) are installed on both sides of the limiting frame (2). The protective components (6) include an unwinding frame (601), a winding frame (602), and a PE film (604). The unwinding frame (601) and the winding frame (602) realize the unwinding and winding operation of the PE film (604). A pressure frame (5) is provided above the limiting frame (2). The limiting frame (2), the shoe tongue (3), the printed body (4), the PE film (604), and the pressure frame (5) are arranged in order from bottom to top.
2. The protective structure for printing on the shoe tongue according to claim 1, characterized in that: The unwinding frame (601) and the winding frame (602) are respectively rotatably mounted with a first shaft (606) and a second shaft (607). The first shaft (606) is rotatably connected to the unwinding frame (601) through a damping bearing.
3. The protective structure for printing on the shoe tongue according to claim 1, characterized in that: A motor (605) is installed on one side of the winding frame (602), and the output end of the motor (605) is connected to the second shaft (607) for transmission.
4. The protective structure for printing on the shoe tongue according to claim 2, characterized in that: The first shaft (606) and the second shaft (607) are respectively fitted with an unwinding drum (603) and a winding drum. One side of the unwinding frame (601) and the winding frame (602) are open, forming a channel for the drum to access the inside of the unwinding frame (601) and the winding frame (602).
5. The protective structure for printing on the shoe tongue according to claim 1, characterized in that: The limiting frame (2) has a sliding plate (8) that is engaged and slidable. The sliding plate (8) has a limiting groove that limits the position of the shoe tongue (3). A protrusion (9) is provided on one side of the sliding plate (8) as the point where the operator applies force to the sliding plate (8).
6. The protective structure for printing on the shoe tongue according to claim 1, characterized in that: One side of the pressure frame (5) is detachably connected to the pneumatic drive mechanism on the computer vehicle via the mounting plate (7) to control the longitudinal position movement of the pressure frame (5).