A flat heating box for shoe upper body

Abstract

This utility model discloses a flat heating box for shoe uppers, including a body for controlling various components, and a heating cavity formed on the body for heating the shoe upper. A placement plate for placing the shoe upper is slidably connected within the heating cavity, and a fixing component for pressing the shoe upper is vertically mounted on the placement plate. A flip-up cover plate is disposed within the heating cavity, and the cover plate is connected to a steam generator on the body via a connecting pipe. This utility model achieves smooth movement of the placement plate through the cooperation of a slide rail and a slider, facilitating the placement of shoe uppers in open work areas. Simultaneously, the L-shaped placement plate conforms to the three-dimensional structure of the shoe upper, and the T-shaped rod drives the pressing plate down along the sliding groove, with a damping collar providing stable limiting and fixing. This ensures reliable and appropriate positioning of the shoe upper, effectively preventing positional displacement during subsequent processing and guaranteeing the basic stability of the flat shoe upper processing.

Description

Technical Field

[0001] This utility model relates to the field of shoe processing technology, and more specifically, to a flat heating box for shoe upper body. Background Technology

[0002] In the shoe manufacturing process, the stitching quality between the upper and the lining, as well as the bonding effect between the upper and the sole, directly determines the shoe's comfort and structural stability. On one hand, after cutting and sewing, the upper may retain residual fabric tension, forming localized wrinkles. If directly sewn to the lining, this can easily lead to misalignment of the seams, resulting in "crooked seams" or "misaligned edges," affecting the overall shape of the shoe. On the other hand, after the upper and lining are sewn together, the seams will naturally protrude due to the overlapping fabric. If this is not smoothed out, the protruding seams will be fixed inside the shoe during subsequent sole bonding, directly contacting the foot and creating uncomfortable bumps that severely reduce the wearing experience and may even cause foot abrasions. Furthermore, these internal seam protrusions can also lead to poor bonding between the upper and the sole, resulting in quality problems such as glue separation and sole detachment after prolonged wear, shortening the shoe's lifespan.

[0003] Currently, the industry commonly uses traditional steam heating tables for flattening uppers and upper-backing assemblies. These machines have a fixed table structure with built-in heating elements connected to steam pipes. They are equipped with a manual temperature control switch (typically set between 60-120℃) and steam valves. The procedure is as follows: Before sewing the upper, the upper is manually laid flat on the steam heating table. The steam valve and heating switch are turned on, allowing steam to be released and the temperature maintained. After heating for 3-5 minutes, the equipment is turned off, and the upper is removed for sewing. After sewing, the upper-backing assembly is laid flat on the table again, and the heating process is repeated, attempting to soften any protrusions at the seams and achieve flatness through steam and temperature.

[0004] In actual production, certain problems arise. On the one hand, existing equipment struggles to achieve stable and reliable positioning of the shoe upper. During the heating process, the upper is prone to displacement, directly resulting in poor final flatness. In some areas, this displacement can even create new wrinkles, failing to meet the stringent flatness requirements of subsequent processing steps. This ultimately affects the overall quality of the footwear and increases the probability of defective products. On the other hand, the heating methods of existing equipment have significant flaws. The distribution of heat or heating medium on the shoe upper surface is uneven, with some areas overheated while others are underheated. This not only easily damages the upper material, causing discoloration and hardening, but also results in significant differences in flatness across different parts of the upper. Therefore, we urgently need a flattening heating box with a sloping main body to solve these problems. Utility Model Content

[0005] One objective of this invention is to provide a new technical solution for a flat heating box for the main body of a shoe upper. By using an L-shaped placement plate in conjunction with a pressing plate and a damping collar, the shoe upper is stably positioned. Combined with a steam generator and ventilation holes, bidirectional heating is achieved. At the same time, a hydraulic cylinder is used to adjust the gap of the cover plate to achieve uniform heating of the shoe upper without deviation, ensuring a flat effect.

[0006] According to a first aspect of this utility model, a flat heating box for a shoe upper body is provided, including a body for controlling various components, and further including: a heating cavity formed on the body for heating the shoe upper, a placement plate for placing the shoe upper is slidably connected in the heating cavity, and a fixing member for pressing the shoe upper is raised and lowered on the placement plate; a cover plate that can be flipped in the heating cavity, the cover plate being connected to a steam generator on the body through a connecting pipe, and when the steam generator is working, steam is discharged along the air outlet on the cover plate and forms a heating zone.

[0007] Optionally, slides are symmetrically installed on the inner wall of the heating chamber, and sliders are slidably connected in both sets of slides. The two sides of the placement plate are fixedly installed with the corresponding sliders. When the placement plate moves out of the heating chamber, a first working area is formed, and when the placement plate enters the heating chamber, a second working area is formed.

[0008] Optionally, the placement plate is L-shaped, and the placement plate has a rectangular array of ventilation holes for air circulation.

[0009] Optionally, the fastener includes a rectangular through hole formed at the protrusion of the placement plate, and sliding grooves are formed on both sides of the inner wall of the rectangular through hole. A pressing plate for pressing the shoe upper is provided in the rectangular through hole, and both sides of the pressing plate are slidably connected in the sliding groove.

[0010] Optionally, damping collars for positioning are symmetrically installed on the placement plate. The damping collars are slidably connected to T-shaped rods, and the ends of the T-shaped rods are fixedly installed on the upper part of the pressing plate. When the T-shaped rods are pressed down, the pressing plate abuts against the shoe upper to form a limiting area.

[0011] Optionally, a hydraulic cylinder for driving the cover plate is hinged to the machine body. The output end of the hydraulic cylinder is hinged to the connection of the cover plate. When the hydraulic cylinder is working, the cover plate moves closer to or away from the placement plate.

[0012] Optionally, a soft baffle for heat insulation is fixedly installed on the body at the opening of the heating chamber.

[0013] 1. According to one embodiment of this disclosure, the flat heating box of the shoe upper body realizes the smooth movement of the placement plate through the cooperation of the slide and the slider, which makes it convenient for operators to place the shoe upper in an open work area. At the same time, with the design of the L-shaped placement plate conforming to the three-dimensional structure of the shoe upper, and the T-shaped rod driving the pressing plate to descend along the sliding groove, and the damping collar providing a stable limiting fixation method, a reliable and suitable positioning of the shoe upper can be formed, effectively avoiding the positional displacement of the shoe upper during subsequent processing, and ensuring the basic stability of the flat processing of the shoe upper.

[0014] 2. According to one embodiment of this disclosure, the flat heating box of the shoe upper body is driven by a hydraulic cylinder to flip the cover plate, which can precisely adjust the heating gap between the cover plate and the placement plate to adapt to shoe uppers of different thicknesses; at the same time, steam is generated by a steam generator, which is transported to the cover plate through a connecting pipe and evenly discharged through the air outlet. Combined with the ventilation holes on the placement plate, the steam acts on the bottom of the shoe upper, forming bidirectional heating from top to bottom, ensuring that the heat is evenly distributed on the surface of the shoe upper, avoiding local overheating or underheating, which protects the shoe upper material from damage and improves the overall flatness of the shoe upper.

[0015] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0017] Figure 1 This is a schematic diagram of the overall structure of a flat heating box for a shoe upper body in one embodiment;

[0018] Figure 2 This is a schematic diagram of the heating chamber structure of a flat heating box for a shoe upper body in one embodiment;

[0019] Figure 3 This is a schematic diagram of the cover structure of a flat heating box for a shoe upper body in one embodiment;

[0020] Figure 4 This is a partially enlarged structural diagram of a flat heating box for a shoe upper body in one embodiment.

[0021] The following are marked in the diagram: 1. Body; 2. Heating chamber; 3. Placement plate; 4. Cover plate; 5. Steam generator; 6. Slide rail; 7. Slider; 8. Vent hole; 9. Rectangular through hole; 10. Sliding groove; 11. Pressing plate; 12. Damping collar; 13. T-shaped rod; 14. Hydraulic cylinder; 15. Soft baffle. Detailed Implementation

[0022] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0023] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0024] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0025] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0026] like Figure 1-4 As shown, a flat heating box for a shoe upper body includes a body 1 for controlling various components, and a soft baffle 15 for heat insulation is fixedly installed on the body 1 at the opening of the heating chamber 2.

[0027] Here, the first body is a conventional technical solution, which will not be elaborated on further.

[0028] Furthermore, the soft baffle 15 is made of high-temperature resistant soft silicone material with a wide temperature range. It can fit tightly against the edge of the opening of the heating chamber 2, effectively blocking the heat from the chamber to the outside. It has good flexibility and adaptability. The soft material can naturally deform as the placement plate 3 slides, which does not affect the entry and exit of the placement plate 3, and can always maintain the heat insulation effect, avoiding damage to the rigid baffle caused by frequent collisions. At the same time, it has a good sealing effect, and fits tightly against the edge of the placement plate 3 to form a "flexible seal", reducing the loss of steam and heat, and ensuring the stability of the temperature and steam concentration inside the chamber.

[0029] It also includes a heating chamber 2 on the body 1 for heating the shoe upper. A placement plate 3 for placing the shoe upper is slidably connected in the heating chamber 2. Slides 6 are symmetrically installed on the inner wall of the heating chamber 2. Slider 7 is slidably connected in both sets of slides 6. The two sides of the placement plate 3 are fixedly installed with the corresponding slider 7. When the placement plate 3 moves out of the heating chamber 2, a first working area is formed. When the placement plate 3 enters the heating chamber 2, a second working area is formed. The placement plate 3 is L-shaped and has a rectangular array of ventilation holes 8 for ventilation.

[0030] Here, the placement plate 3 has a highly adaptable shape, with its horizontal edge supporting the shoe upper body, allowing the entire shoe upper to fit completely against the placement plate 3. During the heating process, all parts of the shoe upper can contact the placement plate 3, ensuring that the heat and pressure from the steam heating are evenly transferred to the shoe upper, avoiding heating blind spots caused by local suspension. The ventilation holes 8 have strong steam penetration, and the rectangular array of ventilation holes 8 allows the steam below the cover plate 4 to penetrate the placement plate 3 and act on the bottom of the shoe upper. Together with the steam discharged from the top of the cover plate 4, a "two-way heating circuit" is formed, ensuring that the upper and lower surfaces of the shoe upper have the same temperature, avoiding the inability to eliminate local wrinkles caused by "hot on top and cold on bottom". In addition, during the heating process, excess air between the shoe upper and the placement plate 3 can be discharged, preventing air stagnation from forming a "local pressure difference" that would cause the shoe upper to be lifted by air pressure and shift. At the same time, it ensures that the steam evenly covers every area of ​​the bottom of the shoe upper.

[0031] Furthermore, the slide 6 and slider 7 can achieve "dual working area switching". The first working area formed by the placement plate 3 moving out of the heating chamber 2 provides the operator with a wide operating space, which is convenient for precise adjustment of the shoe upper position. The second working area after entering the heating chamber 2 can ensure that the shoe upper is in a closed heating environment during processing, reducing external interference. Moreover, the two sets of slides 6 and sliders 7 are symmetrically arranged to ensure that the placement plate 3 does not tilt or shake during the sliding process, and to avoid the shoe upper from shifting due to bumps during sliding, which further enhances the positioning stability.

[0032] The placement plate 3 is equipped with a fixing component for pressing the shoe upper. The fixing component includes a rectangular through hole 9 opened at the protrusion of the placement plate 3. The inner walls of both sides of the rectangular through hole 9 are provided with sliding grooves 10. A pressing plate 11 for pressing the shoe upper is provided in the rectangular through hole 9. Both sides of the pressing plate 11 are slidably connected in the sliding grooves 10. A damping collar 12 for positioning is symmetrically installed on the placement plate 3. The damping collar 12 is slidably connected to a T-shaped rod 13, and the end of the T-shaped rod 13 is fixedly installed with the upper part of the pressing plate 11. When the T-shaped rod 13 is pressed down, the pressing plate 11 abuts against the shoe upper to form a limiting area.

[0033] Here, the height of the pressing plate 11 is adjustable. The pressing plate 11 moves up and down along the sliding groove 10, and the pressing height can be adjusted according to the thickness of the shoe upper to ensure that the pressing plate 11 fits tightly with the shoe upper and the pressing pressure is uniform, without local over-pressure. The pressing area is large, and the rectangular pressing plate 11 can cover the key positioning area of ​​the shoe upper, avoiding local force concentration caused by "point fixation", while expanding the positioning range and further reducing the risk of displacement.

[0034] Furthermore, the "damping characteristics" of the damping collar 12 enable the T-shaped rod 13 to remain in a fixed position after being pressed, without rebound or loosening. Even if it is subjected to steam impact or slight vibration of the equipment during the heating process, the pressing plate 11 can still continuously and stably press the shoe surface. It is highly convenient to operate. The "horizontal handle" of the T-shaped rod 13 makes it easy for operators to press or lift quickly without the need for tools. A single person can complete the fixing operation.

[0035] A flip-up cover plate 4 is installed inside the heating chamber 2. A hydraulic cylinder 14 for driving the cover plate 4 is hinged on the machine body 1. The output end of the hydraulic cylinder 14 is hinged to the connection of the cover plate 4. When the hydraulic cylinder 14 works, the cover plate 4 moves closer to or further away from the placement plate 3. The cover plate 4 is connected to the steam generator 5 on the machine body 1 through a connecting pipe. When the steam generator 5 works, steam is discharged along the air outlet on the cover plate 4 and forms a heating zone.

[0036] Here, the heating medium of the steam generator 5 has excellent characteristics, with stable and adjustable steam temperature, suitable for different shoe upper materials. It also has the characteristics of "strong diffusion and no local high temperature points". Combined with the evenly distributed air outlets on the cover plate 4, it can form a "surface heating zone", ensuring that the steam evenly covers every area of ​​the shoe upper without any heating blind spots. The heating temperature is high and the flatness is achieved through "heat conduction + humidity regulation". Compared with the "dry heat" of electric heating, it can prevent the shoe upper from hardening and cracking due to moisture loss, and protect the original texture of the shoe upper.

[0037] Furthermore, the gap between the hydraulic cylinder 14 driving the cover plate 4 is precisely adjustable. The extension and retraction stroke of the hydraulic cylinder 14 can be precisely adjusted by the control system of the machine body 1, which can match the optimal heating gap according to the thickness of the shoe upper, ensuring that the steam diffuses evenly in the gap without local accumulation or loss. The cover plate 4 has strong flipping stability. The flipping structure driven by the hydraulic cylinder 14 can ensure that the cover plate 4 does not shake or tilt when it approaches or moves away from the placement plate 3, avoiding the displacement caused by the local collision between the cover plate 4 and the shoe upper. Moreover, the flipping speed is smooth, reducing the impact of airflow on the shoe upper.

[0038] In this invention, the placement plate 3 is first moved out of the heating chamber 2 by the cooperation of the slide 6 and the slider 7, forming a working area that is easy to operate. The operator places the shoe upper to be processed on the L-shaped placement plate 3, so that the shoe upper is in contact with the horizontal and vertical sides of the placement plate 3. Then, the pressing plate 11 is driven down along the sliding groove 10 by the T-shaped rod 13. The pressing plate 11 is pressed stably by the limiting effect of the damping collar 12 to complete the positioning of the shoe upper. After positioning, push the placement plate 3 along the slide 6 into the heating chamber 2, start the hydraulic cylinder 14 to drive the cover plate 4 to flip, so that the cover plate 4 is close to the placement plate 3 and adjusted to a heating gap suitable for the thickness of the shoe upper; then start the steam generator 5, and the steam is delivered to the cover plate 4 through the connecting pipe, and then evenly discharged through the air outlet on the cover plate 4 to form a heating zone covering the shoe upper. At the same time, the steam can pass through the vent holes 8 on the placement plate 3 and act on the bottom of the shoe upper to achieve uniform heating of the shoe upper in both directions; during the heating process, the soft baffle 15 at the opening of the heating chamber 2 can not only prevent the heat in the chamber from leaking out, but also slide with the placement plate 3 to maintain a seal. After the heating and leveling operation is completed, the hydraulic cylinder 14 drives the cover plate 4 to open, move the placement plate 3 out of the heating chamber 2, lift the T-shaped rod 13 to release the pressing plate 11, and the processed shoe upper can be taken out.

[0039] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A flat heating box for a shoe upper body, comprising a body (1) for controlling various components, characterized in that: Also includes: A heating chamber (2) for heating the shoe upper is opened on the body (1). A placement plate (3) for placing the shoe upper is slidably connected in the heating chamber (2). A fixing piece for pressing the shoe upper is raised and lowered on the placement plate (3). A flip-up cover plate (4) is installed inside the heating chamber (2). The cover plate (4) is connected to the steam generator (5) on the machine body (1) through a connecting pipe. When the steam generator (5) is working, steam is discharged along the air outlet on the cover plate (4) and forms a heating zone.

2. The flat heating box for the main body of a shoe upper according to claim 1, characterized in that: The slides (6) are symmetrically installed on the inner wall of the heating chamber (2). Each of the two sets of slides (6) is slidably connected to a slider (7). The two sides of the placement plate (3) are fixedly installed with the corresponding slider (7). When the placement plate (3) moves out of the heating chamber (2), a first working area is formed. When the placement plate (3) enters the heating chamber (2), a second working area is formed.

3. The flat heating box for the main body of a shoe upper according to claim 2, characterized in that: The placement plate (3) is L-shaped, and the placement plate (3) has a rectangular array of ventilation holes (8) for ventilation.

4. The flat heating box for the main body of a shoe upper according to claim 3, characterized in that: The fastener includes a rectangular through hole (9) opened at the protrusion of the placement plate (3). The inner walls of both sides of the rectangular through hole (9) are provided with sliding grooves (10). A pressing plate (11) for pressing the shoe upper is provided in the rectangular through hole (9). Both sides of the pressing plate (11) are slidably connected in the sliding groove (10).

5. The flat heating box for the main body of a shoe upper according to claim 4, characterized in that: The placement plate (3) is symmetrically equipped with damping collars (12) for positioning. The damping collars (12) are slidably connected to a T-shaped rod (13), and the end of the T-shaped rod (13) is fixedly installed on the upper part of the pressing plate (11). When the T-shaped rod (13) is pressed down, the pressing plate (11) abuts against the shoe surface to form a limiting area.

6. The flat heating box for the main body of a shoe upper according to claim 1, characterized in that: A hydraulic cylinder (14) for driving the cover plate (4) is hinged on the body (1). The output end of the hydraulic cylinder (14) is hinged to the cover plate (4). When the hydraulic cylinder (14) works, the cover plate (4) moves closer to or further away from the placement plate (3).

7. The flat heating box for the main body of a shoe upper according to claim 1, characterized in that: A soft baffle (15) for heat insulation is fixedly installed on the body (1) at the opening of the heating chamber (2).

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