Efficient shoe sole glue drying box

Abstract

The utility model discloses an efficient drying box for sole glue, which relates to the technical field of production equipment in the shoe industry, reconstructs a three-dimensional thermal field through a dynamic rotary heating shaft and a hollow hot air circulating system, and solves the problems of non-uniform heat distribution, high energy consumption, poor compatibility and the like of the traditional static drying equipment. The core innovation points are as follows: a multi-axis linkage rotary heating technology is adopted, and an intelligent temperature control program is combined, so that uniform curing of glue is realized; the modularized sole support is matched with a sole of 200-350 mm, and quick remodeling is achieved through a sliding rail type loading and unloading and self-adaptive clamping mechanism. And the heat energy utilization efficiency (infrared reflection coating and variable frequency speed regulation) is optimized. Compared with the traditional equipment, the drying time is obviously shortened, the process compatibility and the environmental protection performance are improved, and the equipment is suitable for high-precision bonding scenes such as sports shoes and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to athletic shoes shoemaking technical field, especially a kind of shoe sole glue efficient drying oven. BACKGROUND

[0002] With the rapid development of athletic shoes manufacturing, the efficiency, precision and environmental protection of the glue bonding process are increasingly improved. The curing quality of shoe sole glue (such as EVA, TPU, polyurethane glue) directly affects the durability and safety of finished products, and the traditional drying technology has the following problems: 1. uneven curing: static heating leads to the difference in curing speed of inner and outer layers of glue, which is prone to problems such as air bubbles and cracking; 2. high energy consumption: the heat energy utilization rate of traditional equipment is less than 70%, and the single drying time is as long as 60-80 minutes; 3. fixed support is difficult to compatible with different sole sizes (200-350mm length range), and frequent mold replacement increases cost. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a shoe sole glue efficient drying oven.

[0004] To solve the above technical problems, the utility model provides the following technical scheme:

[0005] The utility model relates to a kind of shoe sole glue efficient drying oven, including box and hinged door, drying cavity is arranged in the box, electric heating box and axial flow fan are fixed on the outer wall of drying cavity, the outlet of electric heating box is connected with the inlet of axial flow fan;Drying cavity is equipped with hollow heating shaft distributed in rectangular matrix, the outlet of axial flow fan is communicated with the end of hollow heating shaft, one end of hollow heating shaft is communicated with the outlet of axial flow fan, and equidistant air outlet is arranged on the surface;Rotary drive device is arranged on the both sides of drying cavity, including bearing seat, synchronous wheel, synchronous belt and drive motor, for driving hollow heating shaft synchronous rotation;Uniformly distributed multiple fixing frames are further arranged on the side wall of drying cavity, and shoe sole support for placing shoe sole is slidably connected to the fixing frame;Illumination lamp and humidity probe are further installed on the inner wall of drying cavity, the humidity probe is communicatively connected with controller, and the power of electric heating box is adjusted according to temperature data by the controller;Adjustable exhaust valve is arranged at the bottom of drying cavity, and is linked with controller to adjust opening degree according to humidity data;Hollow heating shaft and axial flow fan are sealedly connected by high-temperature-resistant rotary joint.

[0006] As a preferred technical scheme of the utility model, the box is provided with a temperature and humidity display for real-time display of the temperature in the drying cavity, and the temperature and humidity display is data-connected with the temperature and humidity probe, and a double-layer anti-fog observation window is installed on the door.

[0007] As a preferred technical scheme of the utility model, the synchronous wheel is connected through the trapezoidal synchronous belt of modulus matching, the transmission ratio is adjustable 1:2~1:4, and the surface is provided with anti-skid lines.

[0008] As a preferred technical scheme of the utility model, the fixed frame top is provided with a U-shaped sliding groove, the U-shaped sliding groove is in sliding connection with the shoe sole support, and a spring buckle locking mechanism is arranged in the U-shaped sliding groove.

[0009] As a preferred technical scheme of the utility model, the hollow heating shaft adopts an aluminum alloy material, and an infrared reflection coating is sprayed on the outer wall, and the coating thickness is 50~100 μm.

[0010] As a preferred technical scheme of the utility model, the shoe sole support is compatible with the specifications of the shoe sole length of 200~300 mm and the width of 80~120 mm.

[0011] Compared with the prior art, the utility model has the beneficial effects as follows:

[0012] 1. Dynamic hot air circulation system: the hollow heating shaft forcibly transports the hot air of the electric heating box to the drying cavity through the axial flow fan, a design of equidistant air outlets on the surface of the hollow heating shaft is combined, a uniform three-dimensional hot air field is formed, the rotating driving device drives the synchronous rotation of the hollow heating shaft, the hot air dynamically covers each part of the shoe sole, and the drying efficiency is improved by 30%~40% (compared with the traditional static air duct);

[0013] 2. The temperature and humidity probe monitors the cavity environment in real time, the controller dynamically adjusts the power of the electric heating box according to the data, the temperature fluctuation is controlled within +2 ℃, the energy consumption is reduced by 15%~20%, the operator can quickly judge the glue state, and the bonding failure caused by over-drying or under-drying of the glue is avoided;

[0014] 3. The transmission ratio of the synchronous wheel and the trapezoidal synchronous belt can be adjusted in the range of 1:2~1:4, different shoe sole thicknesses or glue types are adapted, the rotation speed of the hollow heating shaft and the hot air diffusion rate are matched, and the uniformity of the glue curing is improved by 40%. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0016] Fig. 1 It is the overall structure schematic view of the utility model;

[0017] Fig. 2 It is the front view of the utility model;

[0018] Fig. 3 It is the internal front view structure schematic view of the utility model;

[0019] Fig. 4 is the internal side view structure schematic diagram of the utility model;

[0020] In the figure: 1, box; 2, box door; 3, drying cavity; 4, rotary drive device; 5, fixed frame; 6, shoe sole support; 7, illuminating lamp; 8, temperature and humidity probe; 9, temperature and humidity display; 10, double-layer anti-fog observation window; 11, electric heating box; 12, axial flow fan; 13, hollow heating shaft; 14, bearing seat; 15, synchronous wheel; 16, synchronous belt; 17, drive motor. DETAILED DESCRIPTION

[0021] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described here are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0022] Wherein the same reference numerals in the drawings all refer to the same parts.

[0023] As Figs. 1-4 Indicated, the utility model provides a shoe sole glue high -efficient drying box, including following core components:

[0024] Box 1 adopts the cold-rolled steel sheet welding of thickness 5mm, and forms rectangular drying cavity 3 inside, and the size is 1500mmx1000mmx1000mm.Box door 2 is hinged through stainless steel hinge, and high-temperature-resistant silica gel sealing strip is installed on door edge, to ensure airtightness.

[0025] Electric heating box 11 is built-in three groups 2kW nickel-chromium alloy heating pipe, and the highest heating temperature is 120 DEG C, and outlet is connected axial flow fan 12 (air volume 300m³ / h) through the high-temperature-resistant flexible pipe of diameter 150mm;Hollow heating shaft 13 adopts Φ50mm aluminium alloy pipe, and the surface is provided with Φ3mm air outlet, and the spacing is 50mm, and a total of 20 heating shafts are arranged, and are distributed in 5 rows 4 columns array.

[0026] Rotary drive device 4: drive motor 17 adopts 5kW variable frequency motor, and the rotating speed range is 50~200rpm, and is connected driving synchronous wheel 15 through shaft coupling;Synchronous transmission system: the modulus of synchronous wheel is 5, and the transmission ratio is set as 1:3, and anti-skid tooth groove is set on the surface, to ensure that 20 hollow heating shafts 13 rotate synchronously.

[0027] Temperature and humidity probe 8: precision ±0.3℃, ±2% RH, installed on the side of the drying cavity 3; controller: using PLC programmable controller, preset 3 groups of drying mode low temperature 30~40℃, medium temperature 40~60℃, high temperature 60~80℃, according to the probe data to automatically adjust the electric heating box power (0~100%) and the bottom exhaust valve opening 0~90°. Adjustable exhaust valve: diameter 200mm electric butterfly valve, response time ≤2 seconds, linked with temperature and humidity probe 8, humidity >60% RH, automatically open to 50% opening.

[0028] The top of the fixed frame 5 is provided with a U-shaped sliding groove with a cross-sectional size of 20mm*15mm, the length of the sliding groove is 1200mm, and a total of 4 groups are arranged, and each group is slidably installed with one sole support 6. Spring buckle locking mechanism: spring buckles are arranged at intervals of 100mm at the bottom of the sliding groove, and the quick locking and unlocking of the support is realized by pressing the button.

[0029] The main body of the sole support 6 is a stainless steel piece with adjustable height, the bottom surface of the support is provided with an anti-skid silica gel pad, and the suitable sole size is 200~300mm long*80~120mm wide.

[0030] Double-layer anti-fog observation window 10: the outer layer is 5mm tempered glass, and the inner layer is 3mm anti-fog electric heating glass with a power of 50W, which maintains the temperature difference between the inside and outside ≤5℃.

[0031] Illumination lamp 7: using IP65 waterproof LED lamp, installed on both sides of the top of the drying cavity.

[0032] The dynamic heating principle of the embodiment is that the hollow heating shaft 13 rotates at 150rpm, the shaft flow fan 12 delivers the airflow heated by the electric heating box 11 to 70℃ to the inside of the hollow heating shaft 13, forms a spiral hot air through the air outlet, and uniformly blows the surface of the sole. The excess heat radiation is reflected back to the drying cavity by the infrared reflective coating, reducing energy consumption.

[0033] The use mode of the utility model is as follows:

[0034] 1. The glued sole is placed on the sole support 6, and is fixed on the fixed frame 5 through the spring buckle;

[0035] 2. Select the drying mode according to the type of glue, such as PU glue selected high temperature 60℃, EVA glue selected medium temperature 50℃;

[0036] 3. The driving motor 17 drives the heating shaft to rotate, and the shaft flow fan 12 sends the airflow heated by the electric heating box 11 into the hollow heating shaft 13. The hot air is spirally sprayed out of the air outlet of the heating shaft, uniformly drying the glue of the sole, and the temperature and humidity probe 8 monitors the environmental parameters in real time.

[0037] 4. After reaching the preset drying time, usually 15-25 minutes, the system automatically turns off the heating, and the axial flow fan continues to run for 5 minutes to discharge the residual heat. Open the box door 2, and slide out the shoe sole support 6 through the U-shaped chute.

[0038] Through the above settings, compared with the traditional static drying equipment, the production efficiency is increased by 40%, and the number of shoe soles processed in a single batch reaches 72 pairs. The infrared reflective coating and the hot air circulation design make the unit energy consumption decrease by 25%, and the drying cost of each pair of shoes is ≤0.1 yuan. The rotary heating and intelligent temperature control ensure uniform glue curing.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included within the scope of the present application.

Claims

1. A shoe sole glue high-efficiency drying box, comprising a box body (1) and a hinged box door (2), characterized in that, The box (1) is provided with a drying cavity (3), the outer wall of the drying cavity (3) is fixed with an electric heating box (11) and an axial flow fan (12), the outlet of the electric heating box (11) is connected with the inlet of the axial flow fan (12); the drying cavity (3) is provided with hollow heating shafts (13) distributed in a rectangular array, the outlet of the axial flow fan (12) is communicated with the end of the hollow heating shaft (13), one end of the hollow heating shaft (13) is communicated with the outlet of the axial flow fan (12), and equidistant air outlets are formed on the surface of the hollow heating shaft (13); the two sides of the drying cavity (3) are provided with rotary driving devices (4) including bearing seats (14), synchronous wheels (15), synchronous belts (16) and driving motors (17), which are used for driving the hollow heating shafts (13) to rotate synchronously; a plurality of fixing frames (5) are uniformly arranged on the side wall of the drying cavity (3), the fixing frames (5) are slidably connected with sole supports (6) used for placing soles; an illuminating lamp (7) and a temperature and humidity probe (8) are arranged on the inner wall of the drying cavity (3), the temperature and humidity probe (8) is connected with a controller in communication, the controller adjusts the power of the electric heating box (11) according to temperature data; an adjustable exhaust valve is arranged at the bottom of the drying cavity (3) and is connected with the controller to adjust the opening degree according to humidity data; the hollow heating shaft (13) and the axial flow fan (12) are sealingly connected through a high-temperature-resistant rotary joint.

2. The shoe sole glue efficient drying oven according to claim 1, characterized in that, The box (1) is provided with a temperature and humidity display (9) for displaying the temperature in the drying cavity (3) in real time, the temperature and humidity display (9) is connected with the temperature and humidity probe (8) in data communication, and a double-layer anti-fog observation window (10) is arranged on the box door (2).

3. The shoe sole glue efficient drying oven according to claim 1, characterized in that, The synchronous wheels (15) are connected through the trapezoidal synchronous belts (16) matched in modulus, the transmission ratio is adjustable and is 1:2-1:4, and the surface is provided with anti-skid lines.

4. The high-efficiency drying oven for shoe sole glue according to claim 1, characterized in that, The fixing frame (5) is provided with a U-shaped sliding groove, the U-shaped sliding groove is slidably connected with the sole support (6), and a spring buckle locking mechanism is arranged in the U-shaped sliding groove.

5. The shoe sole glue efficient drying oven according to claim 1, characterized in that, The hollow heating shaft (13) is made of aluminum alloy, the outer wall is sprayed with an infrared reflection coating, and the thickness of the coating is 50-100 μm.

6. The high-efficiency drying oven for shoe sole glue according to claim 1, characterized in that, The sole support (6) is compatible with the specifications that the length of the sole is 200-300 mm and the width is 80-120 mm.

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