A displacement-preventing water bag for shoe pressing and a shoe pressing machine
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN TONGSHUN TECHNOLOGY CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-08-07
AI Technical Summary
然而该方式存在以下显著缺陷：压力分布不均，液压油同步作用于水袋四周，导致鞋底局部压强过大，引发大底移位或跑偏，尤其当鞋底边缘受力时，大底易被挤向一侧；鞋身变形风险，鞋身在未固定状态下直接承受全面压力，产生摆动或褶皱，影响黏合平整度，因此导致的不良率高达15%~20；因此，亟需一种能分步施压且通过结构设计优先定位鞋底的水袋方案
本实用新型中的一种压鞋用防移位水袋，通过在主袋体底部设置加强槽，在腔体内设置定位凸台；当水袋放入压鞋机加工时，液压油先进入加强槽，并通过定位凸台对鞋底进行上压浮底，随后液压油对水袋的侧边进行压紧，最后再对水袋的前后两侧进行压紧；通过设置加强槽和定位凸台引导液压油的加工方向，使加工时先对鞋子稳型定位，然后再按顺序挤压，鞋子在袋子里不会发生移动，大底也不会移位，减少鞋身皱褶问题，提高了加工的良品率。
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Figure CN224597654U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shoemaking equipment technology, and in particular to a water bag for preventing displacement of shoes and a shoe pressing machine. Background Technology
[0002] In shoe manufacturing, hydraulic water bag bonding technology is widely used due to its advantage of not requiring custom molds. The traditional method involves placing the shoe in a water bag and injecting hydraulic oil into a sealed chamber using a shoe press machine, causing the water bag to be evenly pressurized to bond the sole to the upper. However, this method has the following significant drawbacks: uneven pressure distribution, with hydraulic oil acting simultaneously around the water bag, leading to excessive local pressure on the sole, causing outsole displacement or misalignment, especially when the edges of the sole are under pressure, the outsole is easily squeezed to one side; risk of shoe deformation, as the shoe body directly bears the full pressure without being fixed, causing swaying or wrinkling, affecting the smoothness of the bonding, resulting in a defect rate as high as 15% to 20%. Therefore, there is an urgent need for a water bag solution that can apply pressure in stages and prioritize sole positioning through structural design. Utility Model Content
[0003] To address the shortcomings of existing technologies, this invention provides a water bag and a shoe pressing machine for preventing shoe displacement during processing, thereby reducing sole displacement, eliminating shoe wrinkles, and improving the yield rate.
[0004] To solve the above-mentioned technical problems, the present invention provides a water bag for preventing displacement of shoes in a first aspect, comprising: a main bag body, wherein the main bag body has a cavity for placing shoes; a positioning component, including an annular reinforcing groove formed on the outside of the main bag body with the bottom protruding outward, and a positioning boss formed in the cavity after the protrusion, wherein the shoes to be processed are placed on the positioning boss.
[0005] As an improvement to the above solution, the sidewall of the reinforcing groove is arranged in a ring around the outer edge of the bottom of the main bag body.
[0006] As an improvement to the above solution, the area of the positioning boss is larger than the area of the shoe sole to be processed.
[0007] As an improvement to the above solution, the positioning boss is provided with anti-slip texture.
[0008] As an improvement to the above solution, the top of the side of the reinforcing groove is provided with an arc surface.
[0009] As an improvement to the above solution, the depth of the reinforcing groove is 1 / 10 to 1 / 5 of the cavity depth.
[0010] As an improvement to the above solution, the cross-section of the cavity is a monolithic curved surface, and its sidewall profile matches the curved surface of the shoe last.
[0011] As an improvement to the above solution, the opening of the cavity is provided with a circumferential flange, which extends horizontally outward to form a sealing surface.
[0012] As an improvement to the above solution, the flange is provided with an annular protrusion, which is used to fit the sealing cover of the shoe pressing machine.
[0013] To solve the above-mentioned technical problems, the present invention provides a shoe pressing machine in a second aspect, wherein the processing chamber of the shoe pressing machine is provided with the aforementioned anti-displacement water bag for shoe pressing.
[0014] The beneficial effects of implementing this utility model are as follows: This utility model discloses a water bag for preventing displacement of shoes. It features a reinforcing groove at the bottom of the main bag body and a positioning boss inside the cavity. When the water bag is placed in the shoe pressing machine, hydraulic oil first enters the reinforcing groove and then presses the shoe sole upwards through the positioning boss. Subsequently, the hydraulic oil presses the sides of the water bag, and finally, the front and back sides of the water bag are pressed. By using the reinforcing groove and positioning boss to guide the processing direction of the hydraulic oil, the shoe is first stabilized and positioned during processing, and then pressed sequentially. This prevents the shoe from moving inside the bag, and the outsole does not shift, reducing shoe wrinkles and improving the yield rate. Attached Figure Description
[0015] Figure 1 This is one of the structural schematic diagrams of a shoe-pressing anti-displacement water bag in the embodiments of this application; Figure 2 This is a second schematic diagram of the structure of a shoe-pressing anti-displacement water bag in the embodiments of this application; Figure 3 This is the third schematic diagram of the structure of a shoe-pressing anti-displacement water bag in the embodiments of this application.
[0016] The reference numerals in the attached drawings are explained as follows: 100, main bag body; 110, cavity; 120, flange; 121, annular protrusion; 200, positioning component; 210, reinforcing groove; 211, arc surface; 220, positioning boss. Detailed Implementation
[0017] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.
[0018] See Figures 1-3 , Figure 1 This is one of the structural schematic diagrams of a shoe-pressing anti-displacement water bag in the embodiments of this application; Figure 2 This is a second schematic diagram of the structure of a shoe-pressing anti-displacement water bag in the embodiments of this application; Figure 3This is the third structural schematic diagram of a shoe-pressing anti-displacement water bag in this application embodiment. As shown in the figure, the anti-displacement water bag includes: a main bag body 100, the main bag body 100 having a cavity 110 for placing shoes; and a positioning component 200, including an annular reinforcing groove 210 formed on the outside of the main bag body 100 with an outward protrusion at the bottom of the main bag body 100, and a positioning boss 220 formed in the cavity 110 after the protrusion, on which the shoes to be processed are placed. By setting a reinforcing groove 210 at the bottom of the main bag body 100 and a positioning boss 220 in the cavity 110, when the water bag is put into the shoe press machine, the hydraulic oil first enters the reinforcing groove 210 and presses the sole of the shoe through the positioning boss 220. Then the hydraulic oil presses the sides of the water bag and finally presses the front and back sides of the water bag. By setting the reinforcing groove 210 and the positioning boss 220 to guide the processing direction of the hydraulic oil, the shoe is first stabilized and positioned during processing, and then squeezed in sequence. The shoe will not move in the bag and the sole will not shift, reducing the problem of shoe wrinkles and improving the yield rate of processing.
[0019] See Figure 1 and Figure 2 Furthermore, in this embodiment, the sidewall of the reinforcing groove 210 is arranged in a ring around the outer edge of the bottom of the main bag body 100. The reinforcing groove 210 arranged in a ring around the outer edge of the bottom of the main bag body 100 can maximize the oil collection volume, quickly collect oil in the initial stage of hydraulic pressure, form a ring support dam, complete the horizontal limitation of the sole before the main pressure at the bottom, limit the horizontal displacement of the sole, and press the sole upward; then, the side of the main bag body 100 is driven by the lateral oil circuit to clamp the shoe body, eliminating the pulling displacement when the bottom is compressed.
[0020] Furthermore, in this embodiment, the area of the positioning boss 220 is larger than the area of the shoe sole to be processed, ensuring the stability of shoe processing.
[0021] Preferably, the positioning boss 220 is provided with anti-slip texture. The anti-slip texture can increase the coefficient of friction between the sole and the positioning boss, preventing the sole from sliding horizontally during the initial pressing stage.
[0022] See Figure 2 Furthermore, in this embodiment, the top side of the reinforcing groove 210 is provided with an arc surface 211, which can better guide the oil into the reinforcing groove 210.
[0023] Preferably, the depth of the reinforcing groove 210 is 1 / 10 to 1 / 5 of the depth of the cavity 110; the width of the reinforcing groove 210 is 2 / 3 to 3 / 4 of the width of the bottom surface of the cavity 110.
[0024] Furthermore, in this embodiment, the cross-section of the cavity 110 is a monolithic curved surface, and its sidewall contour matches the curvature of the shoe last. The monolithic curved surface perfectly matches the curvature of the shoe last, allowing the hydraulic pressure to be transmitted along the curvature gradient of the sole, eliminating the local pressure spikes of traditional flat-soled water bags.
[0025] See Figure 1 Furthermore, in this embodiment, the opening of the cavity 110 is provided with a circumferential flange 120, which extends horizontally outward to form a sealing surface. The flange 120 is used to provide a full circumferential sealing surface, adapting to the planar pressing structure of the shoe press cover and reducing the risk of sealing failure.
[0026] See Figure 1 Furthermore, in this embodiment, the flange 120 is provided with an annular protrusion 121, which is used to fit the sealing cover of the shoe pressing machine. The sealing groove and the groove on the sealing cover are mechanically interlocked, preventing them from disengaging under hydraulic impact.
[0027] Preferably, the main bag body 100 and the reinforcing groove 210 are both made of thermoplastic polyurethane (TPU) or silicone rubber, which have strong resistance to deformation and long service life; while wrapping, they maintain the flexibility of the edge and avoid indentations on the shoe body.
[0028] Furthermore, in this embodiment, a shoe pressing machine is provided in the second aspect, including a frame, a hydraulic unit, and the aforementioned anti-displacement water bag for shoe pressing. The frame is provided with a processing cavity for accommodating the water bag, and the oil passage of the hydraulic unit faces the water bag inside the processing cavity.
[0029] As can be seen from the above, the anti-displacement water bag for pressing shoes in this utility model has a reinforcing groove at the bottom of the main bag body and a positioning boss in the cavity. When the water bag is put into the shoe pressing machine for processing, hydraulic oil first enters the reinforcing groove and presses the shoe sole upwards through the positioning boss. Then, the hydraulic oil presses the sides of the water bag and finally presses the front and back sides of the water bag. By setting the reinforcing groove and positioning boss to guide the processing direction of the hydraulic oil, the shoe is first stabilized and positioned during processing, and then squeezed in sequence. The shoe will not move in the bag, and the sole will not shift, reducing the problem of shoe wrinkles and improving the yield rate of processing.
[0030] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.
Claims
1. A water bag for preventing shoe displacement, characterized in that, include: The main bag body has a cavity for placing shoes. The positioning component includes an annular reinforcing groove that protrudes outward from the bottom of the main bag body and forms on the outside of the main bag body, and a positioning boss formed in the cavity after the protrusion, on which the shoe to be processed is placed.
2. The anti-displacement water bag for pressing shoes according to claim 1, characterized in that, The sidewall of the reinforcing groove is arranged in a ring around the outer edge of the bottom of the main bag body.
3. The anti-displacement water bag for pressing shoes according to claim 1, characterized in that, The area of the positioning boss is larger than the area of the shoe sole to be processed.
4. The anti-displacement water bag for pressing shoes according to claim 1, characterized in that, The positioning boss is provided with anti-slip texture.
5. The anti-displacement water bag for pressing shoes according to claim 1, characterized in that, The top side of the reinforcing groove has an arc surface.
6. The anti-displacement water bag for pressing shoes according to claim 3, characterized in that, The depth of the reinforcing groove is 1 / 10 to 1 / 5 of the cavity depth.
7. The anti-displacement water bag for pressing shoes according to claim 1, characterized in that, The cross-section of the cavity is a circular curved surface, and its sidewall contour matches the curved surface of the shoe last.
8. The anti-displacement water bag for pressing shoes according to claim 1, characterized in that, The cavity opening is provided with a circumferential flange, which extends horizontally outward to form a sealing surface.
9. The anti-displacement water bag for pressing shoes according to claim 8, characterized in that, The flange is provided with an annular protrusion, which is used to fit the sealing cover of the shoe pressing machine.
10. A shoe pressing machine, characterized in that... The processing chamber of the shoe pressing machine is equipped with a water bag for preventing displacement of shoes as described in any one of claims 1 to 9.