Automatic feeding and discharging structure for circulating cooling
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 湖州川源食品有限公司
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-26
Smart Images
Figure CN224410648U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vegetable processing technology, and in particular to an automatic loading and unloading structure with circulating cooling. Background Technology
[0002] Vegetable processing circulating drying and cooling technology is a crucial technological step in modern food processing, its background technology tracing back to the optimization and industrial transformation of traditional agricultural product drying methods. Early vegetable drying relied primarily on natural sun-drying, which was constrained by weather and environmental factors, resulting in low efficiency and difficulty in ensuring hygiene. With the development of mechanization in the food industry, hot air drying technology gradually replaced traditional methods, removing moisture through forced convection of hot air. However, this method suffered from drawbacks such as high energy consumption and easy loss of heat-sensitive nutrients. In the late 20th century, the concept of energy conservation and emission reduction promoted the application of heat pump drying technology, utilizing refrigeration cycles to recover waste heat, significantly improving energy efficiency. Simultaneously, the cooling process evolved from simple room temperature air-drying to forced ventilation cooling systems, combined with precise temperature and humidity control, preventing quality deterioration of vegetables due to residual heat after drying.
[0003] Chinese utility model patent application number CN202422006650.9 discloses a drying device for dehydrated vegetable processing, including a drying chamber. Mounting plates are installed on both the front and rear sides of the bottom of the drying chamber. A vegetable conveyor belt is installed between the two mounting plates. A protective cover, fixedly connected to the drying chamber, is installed on the rear side of the rear mounting plate. A control motor is installed on the rear side of the protective cover. A material feeding assembly, penetrating the protective cover and driven by the control motor, is installed inside the drying chamber. A support mechanism is installed between the bottoms of the two mounting plates. This drying device for dehydrated vegetables avoids the problem of uneven drying caused by stacking, thus significantly improving drying efficiency and effect. It allows users to adjust the height of the drying chamber according to actual needs, enabling the device to be used in conjunction with other equipment. This adjustability increases the flexibility and applicability of the equipment and facilitates user operation. However, the device has the following problems: firstly, it cannot alternate cooling cycles; secondly, it cannot improve cooling uniformity. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by setting up structured partitions, with the first, third, and fifth regions being both cooled and heated, while the second and fourth regions are only heated alternately. This solves the technical problem that the device cannot alternately cycle cooling. Furthermore, by setting up a guide vane at the lower end of the axial flow fan, the heat exchange efficiency is greatly enhanced, thus solving the technical problem that the device cannot improve cooling uniformity.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An automatic loading and unloading structure for circulating cooling includes a protective shell, a front support frame on the lower front side of the protective shell, a feeding box on the upper end of the front support frame, a feeding port on the upper front side of the feeding box, a rear support frame on the lower rear side of the protective shell, and a discharge ramp on the lower rear side of the rear support frame. The protective shell is evenly divided into five working areas, namely a first area, a second area, a third area, a fourth area, and a fifth area.
[0007] The protective housing is provided with protective doors evenly distributed on the right side. The number of protective doors corresponds to the number of working areas. A metal mesh belt conveyor is provided inside the protective housing. The front and rear sides of the metal mesh belt conveyor protrude from the protective housing, and the front and rear ends of the metal mesh belt conveyor are located on the front support frame and the rear support frame, respectively.
[0008] As a preferred embodiment, the first, third, and fifth regions are provided with axial flow fans at their upper ends, and the lower ends of the axial flow fans are provided with housings. The housings are located on the inner wall of the upper end of the protective housing. The housings are provided with fan blades, and the center of the fan blades is fixedly connected to a drive shaft. The center of the upper end of the drive shaft is connected to a drive motor, which is located at the upper end of the protective housing.
[0009] As a preferred embodiment, a lower heating device is provided at the lower end of the interior of the protective housing. The lower heating device is located in the first region, the third region, and the fifth region. The lower heating device is located at the upper end of the inner side of the center of the metal mesh belt conveyor. An upper heating device is provided at the upper end of the interior of the protective housing. The upper heating device is located in the second region and the fourth region. The upper heating device is located on the upper side of the metal mesh belt conveyor.
[0010] As a preferred embodiment, the lower heating device is provided with a fixing plate at its lower end, which is fixedly connected to the inner wall of the protective shell on both sides. The fixing plate has a heating box on its upper side, and heating tubes are evenly arranged inside the heating box. The upper heating device and the lower heating device have the same overall structure.
[0011] As a preferred embodiment, the upper part of the inner side of the protective housing is provided with a guide vane, the outer side of the guide vane is provided with an outer frame, the left and right sides of the outer frame are fixedly connected to the inner wall of the protective housing, the inner side of the outer frame is uniformly provided with inclined plates, the inclined plates are symmetrically arranged in pairs with gaps between them, and the center of the inclined plates is uniformly provided with holes.
[0012] As another preferred embodiment, the air guide vane is located at the lower end of the axial flow fan.
[0013] The beneficial effects of this utility model are:
[0014] (1) In this utility model, axial flow fans are provided at the upper ends of the first, third and fifth regions, and lower heating devices are provided at the lower ends of the first, third and fifth regions, and upper heating devices are provided at the upper ends of the second and fourth regions. When the axial flow fans are working, their blades rotate under the drive of the motor, which can generate a strong airflow that can quickly remove the heat from the surface of the vegetables and achieve efficient cooling. The heating tubes that are uniformly arranged inside the lower heating device and the upper heating device can provide the vegetables with a suitable processing temperature. During the vegetable processing, the cooling and heating functions of different regions can be carried out alternately, so that the vegetables can quickly complete the corresponding processing steps, greatly shorten the processing time and improve the overall processing efficiency.
[0015] (2) In this utility model, a guide plate is provided at the upper end of the inner side of the protective shell, and the outer frame of the guide plate is fixed to the inner wall of the protective shell. Two symmetrical inclined plates are evenly arranged inside, and there are even holes in the center of the inclined plates. When the airflow generated by the axial fan passes through the guide plate, the inclined plates achieve turbulence control of the airflow through the symmetrical arrangement and hole design, ensuring uniform distribution. The inclined plates guide and disperse the airflow, so that the airflow is evenly distributed inside the protective shell. In this way, all parts of the vegetables can be evenly contacted by the airflow and temperature during the processing, avoiding local overheating or overcooling. During the cooling process of the vegetables, the uniform airflow can make the overall cooling speed of the vegetables consistent, ensuring the uniformity of the quality of the vegetables. Similarly, during the heating process, the uniform temperature distribution can make all parts of the vegetables fully heated, achieving uniform processing and improving the quality of vegetable processing.
[0016] In summary, this device has the advantages of efficient cooling and heating, improved processing efficiency, optimized airflow by the guide vane, and ensure uniform processing quality, making it particularly suitable for the field of vegetable processing technology. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0019] Figure 2 This is a cross-sectional view of the overall structure of this utility model.
[0020] Figure 3 This is a schematic diagram showing the positions of the upper heating device, the lower heating device, and the metal mesh belt conveyor in this utility model.
[0021] Figure 4 This is a schematic diagram of the upper heating device in this utility model.
[0022] Figure 5 This is a schematic diagram of the air guide vane structure in this utility model. Detailed Implementation
[0023] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0024] Example 1
[0025] like Figures 1 to 5 As shown, this utility model provides a circulating cooling automatic loading and unloading structure, including a protective shell 1. A front support frame 2 is provided on the lower front side of the protective shell 1, and a feeding box 3 is provided on the upper end of the front support frame 2. The feeding box 3 is the inlet for materials entering the entire processing system. Its interior is a hollow cavity for feeding vegetables to be processed. A feeding port 31 is provided on the upper front side of the feeding box 3. The feeding port 31 is designed on the upper front side for easy loading of vegetables by the operator. The bottom of the feeding box 3 is typically designed to be inclined so that the vegetables can slide down naturally under their own weight. On the metal mesh belt conveyor 6, a rear support frame 4 is provided on the lower rear side of the protective shell 1, and a discharge ramp 9 is provided on the lower rear side of the rear support frame 4. The discharge ramp 9 is the discharge channel for the processed vegetables. Its inclined design uses gravity to allow the vegetables to slide out of the protective shell 1 naturally and enter the subsequent collection. The surface of the ramp is usually smoothed to reduce the friction when the vegetables slide down and ensure smooth discharge. The protective shell 1 is evenly divided into five working areas, namely the first area 11, the second area 12, the third area 13, the fourth area 14 and the fifth area 15.
[0026] Protective doors 16 are evenly distributed on the right side of the protective housing 1. The function of these protective doors 16 is to facilitate inspection and maintenance of the various working areas inside the protective housing 1. When the protective doors 16 are closed, they effectively prevent external dust and other impurities from entering the protective housing 1, ensuring a relatively clean processing environment. The number of protective doors 16 corresponds to the number of working areas. A metal mesh belt conveyor 6 is installed inside the protective housing 1. The metal mesh belt conveyor 6 consists of a metal mesh belt, a motor, a drive shaft, drive rollers, and driven rollers. The function of the metal mesh belt conveyor 6 is to carry and transport the vegetables to be processed. Driven by a motor, the mesh belt rotates cyclically, thereby transporting the vegetables from the feeding box 3. At the discharge ramp 9, the motor of the metal mesh conveyor 6 can be precisely controlled by the PLC control module to determine which working area the vegetables stay in for which time. The PLC control module sets the axial flow fan 5 of the first area 11, the third area 13, and the fifth area 15 to start synchronously with the lower heating device 7, so as to achieve simultaneous cooling and heating. The second area 12 and the fourth area 14 only use the upper heating device 10 for single-item heating. The operator can adjust the parameters through the PLC human-machine interface to adapt to the processing needs of different types of vegetables. The metal mesh conveyor 6 has protective shells protruding from both the front and rear sides, and the front and rear ends of the metal mesh conveyor 6 are located on the front support frame 2 and the rear support frame 4, respectively, to ensure the stability of the conveying process.
[0027] Furthermore, axial flow fans 5 are provided at the upper ends of the first region 11, the third region 13, and the fifth region 15. The axial flow fans 5 are located at the upper ends of the first region 11, the third region 13, and the fifth region 15 to achieve rapid cooling of vegetables in these regions. The airflow quickly removes heat from the surface of the vegetables, improving cooling efficiency. The lower end of the axial flow fan 5 is provided with a housing 51, which is located on the upper inner wall of the protective housing 1. The housing 51 contains fan blades. The drive motor 52 is located at the upper end of the protective housing 1. The working principle of the axial flow fan 5 is based on the drive motor 52 driving the drive shaft to rotate. The drive shaft drives the fan blades inside the housing 51 to rotate at high speed. When the fan blades rotate, the air flows along the axial direction of the fan blades, generating a strong airflow. The housing 51 serves to protect the fan blades and guide the airflow direction, ensuring that the airflow can blow vertically downwards onto the vegetables on the metal mesh conveyor 6.
[0028] Furthermore, a lower heating device 7 is provided at the lower end of the interior of the protective shell 1. The lower heating device 7 is located in the first region 11, the third region 13, and the fifth region 15. The lower heating device 7 is located at the upper end of the center of the metal mesh conveyor 6. An upper heating device 10 is provided at the upper end of the interior of the protective shell 1. The upper heating device 10 is located in the second region 12 and the fourth region 14. The upper heating device 10 is located on the upper side of the metal mesh conveyor 6. This layout allows vegetables to be cooled and heated alternately in different regions, meeting the process requirements of vegetable processing.
[0029] Furthermore, the lower heating device 7 is provided with a fixing plate 71 at its lower end. The fixing plate 71 is fixedly connected to the inner wall of the protective shell 1 on both sides to ensure the stability of the heating device. The upper side of the fixing plate 71 is a heating box 72. Heating tubes are evenly arranged inside the heating box 72. The working temperature range is 50-80℃. The heating tube is composed of a metal shell, insulating material and resistance wire. The resistance wire is the core component for heating. The insulating material is used to isolate the resistance wire and the metal shell to prevent leakage. The metal shell plays a role in protecting the resistance wire and heat dissipation, so that the heat generated by the resistance wire is evenly distributed into the interior of the heating box 72, thereby providing a suitable processing temperature for the vegetables. When the current passes through the resistance heating tube, the resistance generates heat, thereby raising the temperature inside the heating box 72 and providing a suitable processing temperature for the vegetables. The upper heating device 10 has the same overall structure as the lower heating device 7, and the working principle of the lower heating device 7 and the upper heating device 10 is the same.
[0030] Furthermore, a guide vane 8 is provided at the upper end of the inner part of the protective shell 1, and an outer frame 81 is provided on the outer side of the guide vane 8. The outer frame 81 is fixedly connected to the inner wall of the protective shell 1 on the left and right sides to ensure the stability of the guide vane 8. Inclined plates 82 are evenly provided inside the outer frame 81. The inclined plates 82 are symmetrically arranged in pairs with gaps between them. When the airflow passes through these gaps, it will be guided and dispersed, changing the flow direction of the airflow and making it more evenly distributed inside the protective shell 1. Holes 821 are evenly provided at the center of the inclined plates 82. The holes 821 further increase the dispersion effect of the airflow, so that the airflow can act on the vegetables more evenly. In this way, during the vegetable cooling process, the overall cooling speed of the vegetables can be kept consistent; during the heating process, all parts of the vegetables can be fully heated, achieving uniform processing and improving the quality of vegetable processing.
[0031] Furthermore, the air guide plate 8 is located at the lower end of the axial flow fan 5. When the airflow generated by the axial flow fan 5 flows downward, it will first come into contact with the air guide plate 8.
[0032] Working process: First, the operator puts the vegetables to be processed into the feeding box 3 through the feeding port 31. The vegetables fall to the front end of the metal mesh belt conveyor 6 under the action of gravity. Then, the metal mesh belt conveyor 6 is driven by the drive motor to rotate the drive shaft, so that the metal mesh belt runs in a cycle, and feeds the vegetables into the first area 11 of the protective shell 1 at a uniform speed. At this time, the axial flow fan 5 at the upper end of the first area 11 starts, and the drive motor 52 drives the fan blades to rotate at high speed to generate a strong vertical downward airflow. At the same time, the resistance heating tube in the heating box 72 of the lower heating device 7 is energized and heats up, cooling... Heat is applied alternately to the surface of the vegetables. The vegetables then enter the second zone 12, where the upper heating device 10 provides uniform radiant heat through heating pipes. The inclined plate 82 and holes 821 of the guide vane 8 disperse the airflow, ensuring uniform temperature coverage. The vegetables then sequentially pass through the third zone 13, the fourth zone 14, and the fifth zone 15, repeating the alternating cooling and heating process. The guide vane 8 continuously optimizes the airflow distribution. Finally, the processed vegetables are conveyed to the rear support frame 4 via the rear end of the metal mesh conveyor 6 and automatically slide out from the discharge ramp 9 to complete the unloading process.
[0033] In the description of this utility model, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. 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 referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.
[0034] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.
[0035] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.
Claims
1. A circulating cooling automatic loading and unloading structure, characterized in that: The protective housing (1) includes a front support frame (2) on the lower front side of the protective housing (1), a feeding box (3) on the upper end of the front support frame (2), a feeding port (31) on the upper front side of the feeding box (3), a rear support frame (4) on the lower rear side of the protective housing (1), and a discharge ramp (9) on the lower rear side of the rear support frame (4). The protective housing (1) is evenly divided into five working areas, namely the first area (11), the second area (12), the third area (13), the fourth area (14), and the fifth area (15). The protective housing (1) is uniformly provided with protective doors (16) on the right side. The number of protective doors (16) corresponds to the number of working areas. The protective housing (1) is provided with a metal mesh belt conveyor (6). The front and rear sides of the metal mesh belt conveyor (6) protrude from the protective housing (1), and the front and rear ends of the metal mesh belt conveyor (6) are located on the front support frame (2) and the rear support frame (4), respectively.
2. The circulating cooling automatic loading and unloading structure according to claim 1, characterized in that, An axial flow fan (5) is provided at the upper end of the first region (11), the third region (13) and the fifth region (15). The axial flow fan (5) is provided at the lower end of the housing (5). The housing (51) is located on the inner wall of the upper end of the protective housing (1). The housing (51) is provided with a fan blade. The center of the fan blade is fixedly connected to a drive shaft. The center of the upper end of the drive shaft is connected to a drive motor (52). The drive motor (52) is located at the upper end of the protective housing (1).
3. The circulating cooling automatic loading and unloading structure according to claim 1, characterized in that, The lower end of the protective housing (1) is provided with a lower heating device (7), which is located in the first region (11), the third region (13), and the fifth region (15). The lower heating device (7) is located at the upper end of the center of the metal mesh conveyor (6). The upper end of the protective housing (1) is provided with an upper heating device (10), which is located in the second region (12) and the fourth region (14). The upper heating device (10) is located on the upper side of the metal mesh conveyor (6).
4. The circulating cooling automatic loading and unloading structure according to claim 3, characterized in that, The lower heating device (7) is provided with a fixing plate (71) at its lower end. The fixing plate (71) is fixedly connected to the inner wall of the protective shell (1) on the left and right. The upper side of the fixing plate (71) has a heating box (72). The heating box (72) is uniformly provided with heating tubes. The upper heating device (10) and the lower heating device (7) have the same overall structure.
5. The circulating cooling automatic loading and unloading structure according to claim 1, characterized in that, The upper part of the protective housing (1) is provided with a guide plate (8), and the outer side of the guide plate (8) is provided with an outer frame (81). The outer frame (81) is fixedly connected to the inner wall of the protective housing (1) on the left and right sides. The outer frame (81) is provided with inclined plates (82) evenly inside. The inclined plates (82) are symmetrically arranged in pairs and gaps are left between them. Holes (821) are evenly arranged in the center of the inclined plates (82).
6. The circulating cooling automatic loading and unloading structure according to claim 5, characterized in that, The air guide vane (8) is located at the lower end of the axial flow fan (5).