A freezer thermostat cycle retrofit device for shoe production

Abstract

The utility model discloses a freezer constant temperature circulation retrofitting device for shoe production relates to freezer field, the utility model discloses a freezer main part is provided with the freezing room in the inside, freezer main part's both sides are provided with conveying device, conveying device all includes the support block of freezer main part both sides, the top of support block all is provided with the drive motor, the output of drive motor is connected with gear, the utility model discloses the meshing drive of conveying belt and gear realizes continuous feeding, ensures that shoe high -efficiently is sent into the freezing room inside, and the conical surface - concave contact structure of rotary block and fixed block is used simultaneously, forces the automatic rotation of shoe in transmission, breaks the one -way limitation of traditional translation freezing, makes the cold air even all surface of shoe body, and the bottom fan sends the vertical airflow upwards, and the bottom area is cooled directly through the transmission belt gap, and the temperature stratification phenomenon in freezing room inside is eliminated simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration machines, specifically a constant temperature circulation modification device for a refrigeration machine used in shoe production. Background Technology

[0002] The refrigeration unit for shoe production is a specialized industrial refrigeration equipment used in shoe manufacturing. It generates low temperatures through a compressor-based circulating refrigeration system, providing a precise and controllable cold source. Its core function is to supply a stable low temperature with a basic accuracy of ±0.5℃~±2℃ for key processes such as EVA / TPU material shaping, hot melt bonding, freeze trimming, and mold cooling. The equipment uses refrigerants such as brine or ethylene glycol aqueous solution to circulate to the production line, achieving rapid curing and shaping of shoe materials, preventing brittle edge peeling, and suppressing dust. This ensures accurate shoe dimensions, strong adhesion, and a clean appearance, significantly improving production efficiency and product qualification rate.

[0003] In existing shoe production freezing processes, shoes are placed on a conveyor belt in a freezing machine and frozen and shaped as they pass through the freezing chamber. However, only the temperature at the outlet reaches the required freezing temperature, and the cold air inside cannot be effectively distributed. Furthermore, the shoes can only move horizontally, resulting in poor freezing at the bottom of the shoes, which affects the freezing effect. Therefore, the inventor urgently needs to design a device that can freeze shoes evenly to improve the freezing effect. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a constant temperature circulation modification device for a refrigeration machine used in shoe production, so as to solve the technical problem of poor freezing effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a constant temperature circulation modification device for a refrigeration machine used in shoe production, comprising a refrigeration machine body, a freezing chamber inside the refrigeration machine body, conveying devices on both sides of the refrigeration machine body, each conveying device including support blocks on both sides of the refrigeration machine body, a drive motor above each support block, a gear connected to the output end of the drive motor, and a conveyor belt meshing with the outer side of the gear.

[0006] A groove is provided below the conveyor belt, and several fixing rods are fixedly installed inside the groove. A thrust bearing is provided at the lower end of each fixing rod, and a rotating block is connected to the lower part of the fixing rod. An installation rod is provided below the rotating block, and fixing blocks are provided on the inner walls of both sides of the freezer chamber.

[0007] Both sides of the main body of the freezer are fixedly equipped with inclined plates for removing shoes, and the inclined plates have through grooves inside.

[0008] By adopting the above technical solution, the meshing transmission design of the drive motor and gears realizes the stable cyclic movement of the conveyor belt, ensuring the continuous automated conveying of shoes in the freezing chamber, significantly improving production efficiency and reducing manual intervention. The cooperation mechanism between the rotating block and the fixed block triggers the rotation of the shoes during the conveying process, allowing cold air to wrap around the surface of the shoe from multiple angles, effectively breaking through the freezing dead angles caused by traditional parallel movement, and especially solving the problem of insufficient low temperature penetration on the sole and sides of the shoe.

[0009] Furthermore, the drive motor is electrically connected to an external power source via a controller.

[0010] By adopting the above technical solution, the drive motor can achieve precise adjustment of start / stop and speed through an independent controller, adapting to the flexible production needs of different shoe types requiring freezing time and conveying rhythm, and enhancing equipment compatibility.

[0011] Furthermore, the conveyor belt is arranged in a ring and runs through the interior of the freezer compartment.

[0012] By adopting the above technical solution, the layout of the circular conveyor belt running through the freezing chamber creates a closed loop path, enabling continuous feeding and unloading of shoes, significantly shortening the process interval time and reducing heat exchange loss.

[0013] Furthermore, the fixing rods are arranged at equal intervals inside the groove.

[0014] By adopting the above technical solution, the design of the fixing rods being arranged at equal intervals in the groove ensures that each rotating block receives equal force support, eliminating the problems of rotational jamming or bearing wear caused by uneven force.

[0015] Furthermore, the outer wall of the rotating block has a conical structure, and one side of the fixed block has a concave structure.

[0016] By adopting the above technical solution, the matching shape of the conical outer wall of the rotating block and the concave structure of the fixed block achieves smooth rotation with low resistance at the moment of contact through the mechanical guidance of the inclined plane, avoiding mechanical damage or vibration interference to the freezing process caused by rigid collision.

[0017] Furthermore, the mounting rod has an L-shaped structure, and a soft pad is fitted on the outer side of the mounting rod.

[0018] By adopting the above technical solution, the L-shaped mounting rod provides multi-point suspension support, which is suitable for the center of gravity balance requirements of irregularly shaped shoes such as high heels and boot shafts, and avoids swaying and tilting during rotation due to single-point suspension.

[0019] Furthermore, collection boxes are provided on both sides of the main body of the freezer, and one side of the collection box is fixed to the inclined plate.

[0020] By adopting the above technical solution, the fixed connection between the collection box and the inclined plate forms an integrated unloading channel, realizing the directional sliding and collection of frozen shoes, eliminating manual sorting operations and avoiding occupational health risks in low-temperature environments.

[0021] Furthermore, several fans are arranged at equal intervals below the freezer compartment, and doors are provided at both ends of the freezer compartment.

[0022] By adopting the above technical solution, fans arranged at equal intervals at the bottom form a vertically upward directional airflow matrix, which forces cold air to penetrate the gaps in the conveyor belt and flow around the sole area, thus solving the industry pain point of insufficient low-temperature penetration of the sole in traditional equipment.

[0023] In summary, the present invention has the following main advantages:

[0024] 1. This utility model achieves continuous feeding through the meshing transmission of conveyor belt and gears, ensuring that shoes are efficiently delivered into the freezer chamber. At the same time, with the help of the conical-concave contact structure of the rotating block and the fixed block, the shoes are forced to rotate automatically during transmission, breaking through the unidirectional limitation of traditional horizontal freezing. This allows cold air to evenly coat all surfaces of the shoe body, and the bottom fan delivers vertical airflow upwards, penetrating the gaps in the conveyor belt to directly cool the sole area, simultaneously eliminating the temperature stratification phenomenon inside the freezer chamber.

[0025] 2. This utility model uses the soft pad design of the L-shaped mounting rod to adapt to the suspension stability of different shoe types, preventing them from falling off or being damaged by collision during rotation. At the same time, the linkage structure between the inclined plate and the collection box realizes automatic guidance and unloading after freezing, reducing cold air leakage and temperature fluctuations caused by manual operation. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0028] Figure 3 This is a bottom view of the structure of this utility model;

[0029] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A;

[0030] Figure 5 This utility model Figure 3 A magnified structural diagram at point B in the middle.

[0031] In the diagram: 1. Refrigeration unit body; 2. Freezing chamber; 201. Fixing block; 202. Fan; 3. Conveying device; 301. Support block; 302. Drive motor; 303. Gear; 304. Conveyor belt; 305. Groove; 306. Fixing rod; 307. Thrust bearing; 308. Rotating block; 309. Mounting rod; 4. Collection box; 5. Inclined plate. Detailed Implementation

[0032] 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.

[0033] In this embodiment:

[0034] A temperature-controlled circulation modification device for a refrigeration machine used in shoe production, such as... Figure 1-5 As shown, the system includes a freezer body 1, with a freezer chamber 2 inside. Conveying devices 3 are located on both sides of the freezer body 1. Each conveying device 3 includes support blocks 301 on both sides of the freezer body 1. A drive motor 302 is located above each support block 301. A gear 303 is connected to the output end of the drive motor 302, and a conveyor belt 304 meshes with the outer side of the gear 303.

[0035] A groove 305 is provided below the conveyor belt 304. Several fixing rods 306 are fixedly installed inside the groove 305. A thrust bearing 307 is provided at the lower part of the fixing rod 306. A rotating block 308 is connected to the lower part of the fixing rod 306. An installation rod 309 is provided below the rotating block 308. Fixing blocks 201 are provided on the inner walls of both sides of the freezer chamber 2.

[0036] Both sides of the main body 1 of the freezer are fixedly equipped with inclined plates 5 for removing shoes. The inside of the inclined plate 5 is provided with a through groove. The meshing transmission design of the drive motor 302 and the gear 303 realizes the stable circulation of the conveyor belt 304, ensuring the continuous and automated conveying of shoes in the freezer chamber 2, significantly improving production efficiency and reducing manual intervention. The cooperation mechanism of the rotating block 308 and the fixed block 201 triggers the rotation of the shoes during the conveying process, so that cold air can wrap the surface of the shoe from multiple angles, effectively breaking through the freezing dead angle caused by traditional parallel movement, especially solving the problem of insufficient low temperature penetration on the sole and sides of the shoe. At the same time, the nested structure of the groove 305 and the fixed rod 306 provides stable support for the rotating parts, avoiding mechanical vibration and displacement in low temperature environment. The inclined plate 5 combined with the through groove realizes automatic unloading and guidance, eliminating the risk of cold air leakage when manually picking up shoes, and maintaining a constant temperature in the freezer chamber.

[0037] See Figure 1 , Figure 2The drive motor 302 is electrically connected to an external power supply through a controller. The drive motor 302 achieves precise adjustment of start-stop and speed through an independent controller, adapting to the flexible production needs of different shoe types requiring freezing time and conveying rhythm, and enhancing equipment compatibility. At the same time, the safety isolation design between the electrical control system and the external power supply avoids electrical short circuits caused by the high humidity environment in the freezing chamber, improving the reliability and safety of equipment operation. The real-time feedback function of the control signal can dynamically optimize freezing process parameters, reduce energy consumption fluctuations, and ensure the stability of the temperature curve.

[0038] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The conveyor belt 304 is arranged in a ring and runs through the interior of the freezing chamber 2. The layout of the ring conveyor belt 304 running through the freezing chamber 2 creates a closed loop path, realizing continuous feeding and unloading of shoes, greatly shortening the process interval time and reducing heat exchange loss. At the same time, the continuous ring structure avoids the loss of cold air caused by traditional intermittent conveying, maintaining the airtightness and temperature field uniformity inside the freezing chamber. The integrated conveyor belt reduces the gaps between segments and prevents shoes from falling off or shifting angle during transportation, which affects the uniformity of freezing.

[0039] See Figure 4 , Figure 5 The fixing rods 306 are arranged at equal intervals inside the groove 305. This design ensures that each rotating block 308 receives equal force support, eliminating rotational jamming or bearing wear caused by uneven force. At the same time, the equidistant arrangement forms regular rotation trigger points, allowing the shoes to rotate in segments at multiple angles within the freezing chamber, covering a complete freezing area. This structure also facilitates batch assembly and maintenance, reducing the complexity of parts replacement and downtime.

[0040] See Figure 4 The outer wall of the rotating block 308 has a conical structure, and one side of the fixed block 201 has a concave structure. The matching shape of the conical outer wall of the rotating block 308 and the concave structure of the fixed block 201 enables low-resistance smooth rotation through the mechanical guidance of the inclined surface at the moment of contact, avoiding mechanical damage caused by rigid collision or vibration interference to the freezing process. At the same time, the conical surface increases the friction contact area and disperses the pressure, preventing the risk of fracture caused by low-temperature metal embrittlement. The embedded positioning function of the concave structure makes the rotation trajectory more controllable, ensuring the accurate repeatability of the shoe's flipping angle and improving the freezing consistency of batch products.

[0041] See Figure 4 , Figure 5The mounting rod 309 has an L-shaped structure, and a soft pad is fitted on the outside of the mounting rod 309. The L-shaped mounting rod 309 provides multi-point suspension support, which can adapt to the center of gravity balance requirements of irregularly shaped shoes such as high heels and boots, and avoid swaying and tilting during rotation due to single-point suspension. At the same time, the soft padding layer increases the friction with the shoe upper, preventing the shoe from slipping after low-temperature hardening. Its elastic deformation characteristics also absorb the impact force when starting and stopping rotation, protect the shoe upper material from mechanical indentation damage, and maintain the integrity of the product's appearance.

[0042] See Figure 1 , Figure 2 , Figure 3 The main body 1 of the freezer is equipped with collection boxes 4 on both sides. One side of the collection box 4 is fixed to the inclined plate 5. The fixed connection between the collection box 4 and the inclined plate 5 forms an integrated unloading channel, which realizes the directional sliding and collection of shoes after freezing, eliminating manual sorting operations and avoiding occupational health risks in low temperature environments. At the same time, the matching design of the inclined plate angle and the height of the collection box controls the falling buffer distance to prevent the shoes from being deformed or scratched due to free fall and collision with the box wall.

[0043] See Figure 1 , Figure 2 Several fans 202 are arranged at equal intervals below the freezer chamber 2. Doors are set at both ends of the freezer chamber 2. The fans 202 arranged at equal intervals at the bottom form a vertically upward directional airflow matrix, which forces cold air to penetrate the gap of the conveyor belt and flow around the shoe sole area, solving the industry pain point of insufficient low temperature penetration of the shoe sole in traditional equipment. At the same time, multiple fans work together to form a uniform air pressure field, breaking the phenomenon of cold air stratification inside the freezer chamber and achieving a three-dimensional spatial temperature field balance. The door sealing structure, together with the airflow circulation, reduces the cold loss when opening and closing, maintains the stability of the process temperature zone, reduces the compressor load, and extends the equipment life.

[0044] The implementation principle of this embodiment is as follows: The worker is located at one end of the conveyor belt, hangs the shoes to be frozen on the outside of the mounting rod 309, operates the drive motor 302 to drive the gear 303 to rotate, drives the conveyor belt 304 to rotate, and transports the shoes to the inside of the freezing chamber 2. When the rotating block 308 passes the fixed block 201 inside the freezing chamber 2, it will rotate, causing the shoes to rotate and fully freeze the shoes. The fan 202 will further freeze the shoes. When the freezing is completed and the shoes are transported to the outside, they will be knocked down into the collection box 4 by the inclined plate 5, completing the entire freezing process.

[0045] 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 constant temperature circulation modification device for a refrigeration machine used in shoe production, characterized in that: The system includes a freezer body (1), inside which a freezer chamber (2) is provided. Conveying devices (3) are provided on both sides of the freezer body (1). Each conveying device (3) includes a support block (301) on both sides of the freezer body (1). A drive motor (302) is provided above each support block (301). The output end of the drive motor (302) is connected to a gear (303). A conveyor belt (304) meshes with the outer side of the gear (303). A groove (305) is provided below the conveyor belt (304), and a plurality of fixing rods (306) are fixedly provided inside the groove (305). A thrust bearing (307) is provided at the lower part of the fixing rod (306), and a rotating block (308) is connected below the fixing rod (306). An installation rod (309) is provided below the rotating block (308). Fixing blocks (201) are provided on the inner walls of both sides of the freezer chamber (2). Both sides of the main body (1) of the freezer are fixedly provided with inclined plates (5) for removing shoes, and the inside of the inclined plates (5) is provided with through grooves.

2. The constant temperature circulation modification device for a refrigeration machine used in shoe production according to claim 1, characterized in that: The drive motor (302) is electrically connected to an external power source via a controller.

3. The constant temperature circulation modification device for a refrigeration machine used in shoe production according to claim 1, characterized in that: The conveyor belt (304) is arranged in a ring and runs through the interior of the freezer compartment (2).

4. The constant temperature circulation modification device for a refrigeration machine used in shoe production according to claim 1, characterized in that: The fixing rods (306) are arranged at equal intervals inside the groove (305).

5. The constant temperature circulation modification device for a refrigeration machine used in shoe production according to claim 1, characterized in that: The outer wall of the rotating block (308) has a conical structure, and one side of the fixed block (201) has a concave structure.

6. The constant temperature circulation modification device for a refrigeration machine used in shoe production according to claim 1, characterized in that: The mounting rod (309) has an L-shaped structure, and a soft pad is fitted on the outside of the mounting rod (309).

7. The constant temperature circulation modification device for a refrigeration machine used in shoe production according to claim 1, characterized in that: The main body (1) of the freezer is provided with collection boxes (4) on both sides, and one side of the collection box (4) is fixed to the inclined plate (5).

8. The constant temperature circulation modification device for a refrigeration machine used in shoe production according to claim 1, characterized in that: Several fans (202) are arranged at equal intervals below the freezer compartment (2), and doors are provided at both ends of the freezer compartment (2).

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