A limiting baffle for shoe tongue glue spraying

By designing a detachable limiting baffle structure, the problem of inaccurate adhesive spraying on shoe tongues in existing technologies has been solved, enabling precise positioning of shoe tongues of different thicknesses and shapes, meeting the production needs of diverse products, and improving the stability and efficiency of the adhesive spraying process.

CN224522492UActive Publication Date: 2026-07-21JIHUA 3514 LEATHER & FOOTWARE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIHUA 3514 LEATHER & FOOTWARE
Filing Date
2025-07-02
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing tongue glue spraying limiter cannot adapt to tongues of different thicknesses and shapes, resulting in inaccurate glue spraying range, affecting subsequent sewing processes, and making it difficult to meet the production needs of diverse products.

Method used

A detachable limiting baffle structure was designed, including a base plate and a front plate. Through the combination of connecting rods, nuts and springs, it can achieve precise positioning of shoe tongues of different thicknesses and shapes. Combined with adjustable placement space and anti-slip layer, it ensures that the shoe tongue does not shift or fall off during the glue spraying process.

Benefits of technology

It enables precise positioning of shoe tongues of different thicknesses and shapes, ensuring accurate glue spraying range, and is suitable for the production of diverse products, improving the stability and efficiency of the glue spraying process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a limiting baffle, specifically disclose a limiting baffle for shoe tongue glue spraying, including bottom plate, panel, panel detachable set in bottom plate top, be equipped with the placing space for the shoe tongue horizontal placement between panel and bottom plate, the recess for limiting the glue spraying area is set up on the panel, be connected with the connecting rod of vertical direction setting between bottom plate and panel, and the connecting rod lower extreme is fixedly connected with bottom plate, and the connecting rod upper extreme passes panel and is screw -threaded connection nut in the part of protruding panel upper surface. The spring is set up on the connecting rod between panel and bottom plate, and the gasket for increasing the height of placing space is equipped between the spring upper extreme and panel. The utility model structure is simple, convenient operation, and the limiting effect of glue spraying range is good, is applicable to the shoe tongue glue spraying of multiple specifications.
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Description

Technical Field

[0001] This utility model relates to a limiting baffle, belonging to the field of shoe manufacturing technology, specifically a limiting baffle for spraying adhesive on shoe tongue. Background Technology

[0002] The adhesive bonding process for the shoe tongue is a crucial step in shoe manufacturing, ensuring a strong bond between the various components of the tongue. During tongue production, to improve wearing comfort, a flexible, thickened design is incorporated at the top of the tongue (the end closest to the ankle / collar). This is achieved by adding a layer of foam to the top third of the tongue, rather than covering the entire area. Thus, above the foam is the visible outer leather layer, and below is the inner lining layer; the leather layer, lining layer, and foam together form the complete shoe tongue structure.

[0003] In the manufacturing process of the aforementioned shoe tongue, the foam is typically first temporarily bonded to one layer (e.g., the leather layer) using hot melt adhesive to form a pre-bonded functional layer. Then, adhesive is sprayed onto this pre-bonded functional layer, and it is then bonded to another layer (the lining layer). Finally, the bonded assembly is fixed by hot pressing. Figure 1 The diagram shows a pre-bonded functional layer with a U-shaped top tongue, i.e., the state after the foam layer 1 and leather layer 2 are bonded together. A certain width of stitching processing area 3 (the area enclosed by the dotted line in the diagram) is left between the edge of the foam layer 1 and the top edge of the leather layer 2. Specific sewing techniques are used in stitching processing area 3 to process the top of the tongue. To avoid affecting subsequent sewing processes, no glue should be sprayed in stitching processing area 3; that is, when spraying glue on the pre-bonded functional layer, the spraying area should be the rest of the tongue area excluding stitching processing area 3. Given the requirements for the spraying area in the above-mentioned tongue glue spraying process, factories generally use the method of directly holding the tongue by hand and controlling its position relative to the glue gun nozzle to control the spraying area. In this method, the glue spraying boundary at the edge of the area to be sprayed is inaccurate, and glue is easily sprayed into stitching processing area 3, affecting subsequent tongue sewing processes. Currently, some methods use limiting plates with glue spray nozzles to restrict the glue spraying area. Specifically, the item to be sprayed is placed between an upper baffle and a lower placement plate. However, existing limiting plates still have the following problems when used for spraying glue onto shoe tongues: they limit the thickness of the shoe tongue; if the tongue is too thick, it becomes difficult or impossible to insert, while if the tongue is too thin, it may shift or even fall off during the spraying process; and they are only suitable for spraying glue onto shoe tongues of a single shape. Therefore, existing glue spraying limiting methods are difficult to meet the needs of factories producing diverse products. Utility Model Content

[0004] To address the aforementioned shortcomings in the existing technology, this utility model aims to provide a limiting baffle for spraying adhesive on shoe tongues, which can accurately limit the spraying range and enable adhesive spraying on shoe tongues of different thicknesses and shapes of spraying areas.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A limiting baffle for spraying adhesive on shoe tongues includes a base plate for placing the shoe tongue and a panel for defining the adhesive spraying area. The panel is detachably disposed above the base plate. A placement space for placing the shoe tongue flat is provided between the panel and the base plate. A notch for defining the adhesive spraying area is provided on the panel. A vertically arranged connecting rod is connected between the base plate and the panel. The lower end of the connecting rod is fixedly connected to the base plate. The upper end of the connecting rod with external threads movably passes through the panel and extends out of the upper surface of the panel. A nut for defining the position of the panel is threaded onto the connecting rod extending out of the upper surface of the panel.

[0006] As a limitation of this utility model: a spring is sleeved on the connecting rod between the panel and the base plate, the lower end of the spring is fixedly connected to or movably abutting against the base plate, and the upper end of the spring is movably abutting against the panel.

[0007] As a limitation of this utility model: a pad for increasing the height of the placement space is provided between the upper end of the spring and the panel, and the pad is movably sleeved on the connecting rod.

[0008] As a limitation of this utility model: the shape of the notch is the same as the edge shape of the foam layer at the top of the shoe tongue.

[0009] As a limitation of this utility model: an anti-slip layer is fixedly provided on the upper surface of the base plate.

[0010] As a limitation of this utility model: a hand-held part is fixedly provided at the rear end of the base plate.

[0011] As a limitation of this utility model: the base plate is any one of wood, plastic, or metal, and the panel is any one of wood, plastic, metal, or cardboard.

[0012] By adopting the above technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows:

[0013] (1) The panel and the base plate of this utility model are detachably connected, which allows the panel to be disassembled and replaced at any time. That is, a base plate can be configured with multiple panels with different recesses to process products with different spraying area shapes. Furthermore, through the setting of connecting rods, threads, and nuts, the height of the placement space between the panel and the base plate can be adjusted, which can enable the spraying of adhesive on shoe tongues with different thicknesses, thus meeting the needs of the factory for the production of diverse products.

[0014] (2) This utility model has a spring between the panel and the bottom plate, which can ensure that the panel and the bottom plate have sufficient placement space so that the shoe tongue to be sprayed can be quickly placed in the placement space. The panel can also clamp the shoe tongue by pressing the spring, so that the shoe tongue will not shift or fall off during the spraying process. At the same time, an anti-slip layer is fixed on the top of the bottom plate to increase the friction between the shoe tongue and the bottom plate, which can more effectively limit the position of the shoe tongue.

[0015] (3) The pad provided by this utility model can increase the height of the placement space and expand the thickness range of the products that can be processed to a certain extent. When processing thicker products, a pad with a certain height can be added between the panel and the base plate. The height of the pad can be set according to different needs to meet the glue spraying processing of products of different thicknesses.

[0016] In summary, this utility model has a simple structure, is easy to operate, and has a good limiting effect on the glue spraying range, making it suitable for glue spraying on shoe tongues of various specifications. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of a pre-fitting functional layer with a U-shaped top tongue;

[0019] Figure 2 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0020] Figure 3 This is a side view of an embodiment of the present invention.

[0021] In the diagram: 1-foam layer, 2-leather layer, 3-sewing area, 4-base plate, 5-panel, 6-notch, 7-connecting rod, 8-nut, 9-spring, 10-pad, 11-handle. Detailed Implementation

[0022] The preferred embodiments of this utility model are described below with reference to the accompanying drawings. It should be understood that the limiting baffle for spraying adhesive on the shoe tongue described herein is a preferred embodiment and is only used for illustration and explanation of this utility model, and does not constitute a limitation on this utility model.

[0023] The directional terms or positional relationships used in this utility model, such as "up," "down," "left," and "right," are based on the positional relationships in the accompanying drawings of this utility model. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component must have a specific orientation, or that it must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the content protected by this utility model. Example

[0024] This implementation example Figure 2 , Figure 3 As shown, a limiting baffle for spraying adhesive on shoe tongue includes a base plate 4 and a front plate 5. The base plate 4 is used to place the shoe tongue, and the front plate 5 is used to define the area to be sprayed with adhesive. The front plate 5 is detachably mounted on top of the base plate 4, and a space is provided between the front plate 5 and the base plate 4 for placing the shoe tongue to be sprayed with adhesive flat.

[0025] like Figure 2 As shown, in this embodiment, the base plate 4 is rectangular in shape to support the shoe tongue. Of course, besides the shape in this embodiment, the base plate 4 can be any other shape suitable for placing the shoe tongue. The base plate 4 can be made of wood, plastic, metal, or any other material. The portion of the base plate 4 where the shoe tongue is placed is the front end. A vertical connecting rod 7 is fixed to the base plate 4 near the rear end. The lower end of the connecting rod 7 is fixedly connected to the base plate 4. The upper end of the connecting rod 7 has external threads, and the upper end of the connecting rod 7 movably passes through the panel 5 and extends beyond the upper surface of the panel 5. A nut 8 is threaded onto the connecting rod 7 extending beyond the upper surface of the panel 5. The distance between the panel 5 and the base plate 4 is limited by adjusting the nut 8.

[0026] A notch 6 is provided on the front-facing side of panel 5 to define the adhesive spraying area. The shape of the notch 6 is the same as the edge shape of the foam layer 1 near the top of the tongue. This allows the edge of the foam layer 2, which has a certain thickness, to abut against the edge of the notch 6, precisely positioning the tongue. During production, when a different tongue shape needs to be applied for adhesive spraying, the shape of the adhesive spraying area also changes. Since panel 5 is detachably mounted on the base plate 4 via a threaded structure on the connecting rod 7, only the panel 5 with the matching notch 6 needs to be replaced. Panel 5 is preferably made of low-cost cardboard, and it is easier to create notches of any shape on cardboard. Of course, panel 5 can also be made of wood, plastic, metal, etc.

[0027] When placing the shoe tongue into the placement space, the height of the placement space should be as close as possible to the thickness of leather layer 2. This allows for more effective restraint of the shoe tongue, but it can also affect the placement process to some extent, even making it difficult. Increasing the height of the placement space, while facilitating quick insertion, can make the shoe tongue more prone to shifting or falling off. Therefore, if... Figure 3As shown, in this embodiment, a spring 9 is sleeved on the connecting rod 7. The spring 9 is a compression spring. The lower end of the spring 9 is fixedly connected to or movably abuts against the base plate 4, and the upper end of the spring 9 is movably abuts against the panel 5. Due to the compression performance of the spring 9, the height of the placement space can be set slightly greater than the thickness of the leather layer 2. After the shoe tongue is inserted, the spring 9 is compressed by pressing the panel 5. Thus, the panel 5 and the base plate 4 can jointly clamp the shoe tongue, preventing it from shifting or falling off during the glue spraying process. At the same time, an anti-slip layer (not shown in the figure) is fixed on the top of the base plate 4. By increasing the friction between the shoe tongue and the base plate, the position of the shoe tongue can be more effectively limited. The anti-slip layer can be implemented using any of the existing technologies.

[0028] When the maximum height of spring 9 is insufficient to provide enough space for a thicker shoe tongue, in this embodiment, a pad 10 is provided between the upper end of spring 9 and panel 5 to increase the height of the placement space. The pad 10 is movably sleeved on connecting rod 7, with its upper end abutting against panel 5 and its lower end abutting against spring 9. The detachable pad 10 allows for increasing the height of the placement space without replacing spring 9, making the limiting baffle suitable for processing shoe tongues of different thicknesses, especially thicker ones. The thickness of the pad 10 can be designed according to actual needs.

[0029] To facilitate worker operation, a hand-held part 11 is fixed on the rear end of the base plate 4. The hand-held part 11 can be implemented using existing technology.

[0030] In this embodiment, a panel 5 matching the tongue to be glued is installed on the base plate 4, and the height of the placement space is adjusted to a suitable level using nuts 8 and pads 10. The tongue is placed into the placement space and laid flat on the base plate 4, and accurately positioned according to the shape of the notch 6. The panel 5 is pressed to compress the spring 9, clamping the tongue, which then moves back and forth under the glue spraying head of the glue spraying mechanism to complete the glue spraying. After the glue spraying is complete, the pressed panel 5 is released, and the tongue can be removed.

Claims

1. A limiting baffle for spraying adhesive on shoe tongues, characterized in that: The device includes a base plate for placing the shoe tongue and a panel for defining the adhesive spraying area. The panel is detachably mounted on top of the base plate. A space for placing the shoe tongue flat is provided between the panel and the base plate. The panel has a notch for defining the adhesive spraying area. A vertically arranged connecting rod is connected between the base plate and the panel. The lower end of the connecting rod is fixedly connected to the base plate. The upper end of the connecting rod, which has external threads, movably passes through the panel and extends out of the upper surface of the panel. A nut for defining the position of the panel is threaded onto the connecting rod extending out of the upper surface of the panel.

2. The limiting baffle for spraying adhesive on a shoe tongue according to claim 1, characterized in that: A spring is fitted on the connecting rod between the panel and the base plate. The lower end of the spring is fixedly connected to or movably abuts against the base plate, and the upper end of the spring is movably abuts against the panel.

3. A limiting baffle for spraying adhesive on a shoe tongue according to claim 2, characterized in that: A pad is provided between the upper end of the spring and the panel to increase the height of the placement space. The pad is movably sleeved on the connecting rod.

4. A limiting baffle for spraying adhesive on a shoe tongue according to any one of claims 1 to 3, characterized in that: The shape of the notch is the same as the edge shape of the foam layer at the top of the shoe tongue.

5. A limiting baffle for spraying adhesive on a shoe tongue according to claim 4, characterized in that: An anti-slip layer is fixed to the upper surface of the base plate.

6. A limiting baffle for spraying adhesive on a shoe tongue according to any one of claims 1, 2, 3, and 5, characterized in that: A hand-held part is fixed at the rear end of the base plate.

7. A limiting baffle for spraying adhesive on a shoe tongue according to claim 6, characterized in that: The base plate is any one of wood, plastic, or metal, and the face plate is any one of wood, plastic, metal, or cardboard.