Power transformation device of puffing cold drying box
The expansion cold drying box modification device with dual hydraulic system and PLC control solved the problems of uneven moisture content and unstable discharge of materials, achieved uniform material distribution and smooth discharge, and improved product quality and equipment reliability.
Patent Information
- Application Number
- CN202423023610.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-12-09
AI Technical Summary
The moisture distribution of materials in the existing puffing cold drying box is uneven, which affects the product quality, makes the discharging process unstable, and is prone to material blockage or poor discharge.
It adopts a dual hydraulic system, including two independent hydraulic drives, equally spaced joint bearings and flap doors on the mounting plate, equipped with lubricating oil holes, inspection ports, movable adjustment plates, paddle level gauges and alarms, and realizes material level monitoring and automatic management through the PLC control system.
It achieves uniform moisture distribution in the material, stable material discharge, reduces component wear and failure, improves production efficiency and equipment reliability, ensures operational safety, and simplifies maintenance work.
Smart Images

Figure CN223318175U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of food processing equipment, in particular to a power transformation device for an expansion cold drying box. Background Art
[0002] The puffing freezer is a food processing equipment that integrates puffing and freeze-drying (freeze-drying) technologies. It is primarily used to produce high-quality puffed foods. It preserves the nutrients and natural flavor of the ingredients while imparting a unique taste to the product. It is suitable for a variety of ingredients, such as vegetables, fruits, and grains.
[0003] Prior art Chinese patent document 201210573992.8 discloses a non-fried vacuum freeze-puffing dryer, a dryer comprising a cold trap, a refrigeration unit, a vacuum tank, a vacuum unit, a puffing tank, and a plate heat exchanger. The vacuum unit is connected to the cold trap and vacuum tank, respectively. The cold trap, vacuum tank, and puffing tank are connected via a tee. The refrigeration unit is connected to the cold trap via a condenser pipe. The puffing tank is connected to the plate heat exchanger via a water inlet pipe and a water outlet pipe, respectively. The plate heat exchanger is connected to a heating water tank and a cooling circulation unit, respectively. A material tray is provided within the puffing tank, which is connected to an oil-free air compressor. A sterile air filter is provided between the puffing tank and the oil-free air compressor. The present invention has the quality comparable to that of vacuum freeze-dried products in terms of color, flavor, and nutritional content. At the same time, the product obtained through puffing and drying has a porous, spongy structure inside the raw material, resulting in excellent crispness, a complete appearance, and a crispy taste, thereby increasing the added value of the product.
[0004] However, the above solution has at least the following technical problems during implementation: uneven moisture distribution of the material, which affects product quality, unstable discharging process, and easy material blockage or poor discharge. Therefore, it is urgent to propose a power transformation device for the expansion cold drying box. Summary of the Invention
[0005] In view of the above technical problems, the present disclosure provides a power transformation device for an expansion cold drying box, which solves the technical problems in the prior art such as uneven moisture distribution of materials, affecting product quality, unstable discharging process, and easy material blockage or poor discharge.
[0006] According to one aspect of the present disclosure, a power transformation device for an expanded cold-drying box is provided, comprising a dual hydraulic structure installed on a box body, wherein the dual hydraulic structure comprises two independently arranged hydraulic drivers, wherein the power output end of the hydraulic driver is rotatably connected to a mounting plate, wherein a plurality of mounting holes are evenly spaced on the mounting plate for mounting spherical bearings, wherein the spherical bearings are mounted on a flap door via a rotating plate, and a discharge box is supported below the flap door.
[0007] In some embodiments of the present disclosure, a lubricating oil hole is drilled above the mounting hole, and an internal thread is provided in the lubricating oil hole to install a grease nipple, and a spherical bearing is supported below the lubricating oil outlet of the grease nipple.
[0008] In some embodiments of the present disclosure, an inspection port is provided on a side of the box body, and a movable adjustment plate is installed in the inspection port.
[0009] In some embodiments of the present disclosure, a rotary paddle level meter, a middle level alarm, and a high level alarm are respectively installed at different heights of the box.
[0010] In some embodiments of the present disclosure, a material blockage alarm is installed at the bottom of the discharge port of the discharge box.
[0011] In some embodiments of the present disclosure, a material level control switch is also included, which is connected to a PLC that carries a control program to receive sensing signals from a rotary level meter, a middle level alarm, a high level alarm, and a blockage alarm to achieve start and stop control of the hydraulic pump.
[0012] In some embodiments of the present disclosure, the hydraulic driver comprises an NLG3535 NZ-10-14-2-TP54 hydraulic pump.
[0013] In some embodiments of the present disclosure, the mounting plate is a Q235A carbon steel plate, and 11 holes are punched on the surface of the carbon steel plate at an equal distance of 230 mm, with a diameter of φ42+0.02 mm; the size of the grease nipple is M10*1 mm.
[0014] In some embodiments of the present disclosure, the inspection port is a 1050*50 mm rectangular inspection port, and the size of the movable adjustment plate is 1400*150*5 mm.
[0015] In some embodiments of the present disclosure, the rotary paddle level meter is 700 mm away from the flap door, the middle level alarm is 1000 mm away from the flap door, and the high level alarm is 1400 mm away from the flap door.
[0016] The beneficial effects of the present invention are:
[0017] This new model utilizes a dual hydraulic system, avoiding the limitations of traditional single hydraulic systems. This allows for separate control and discharge on both sides, improving material handling efficiency, ensuring even moisture distribution and stable discharge. The carbon steel plate offers excellent mechanical properties, ensuring precise installation, and the plate-type connection reduces connecting rod failure. The flap door opens and closes flexibly and smoothly, ensuring smooth material flow in and out of the discharge bin. Evenly spaced spherical bearings ensure smooth and reliable flap door operation, evenly distributing force, reducing localized stress concentration, and extending component life. Grease fittings ensure adequate lubrication of the spherical bearing components, reducing wear and extending service life. They also effectively prevent rust. Sensors monitor material levels in real time, providing accurate information and improving product quality. They can also trigger corresponding alarms, prompting operators to take timely action to prevent overfilling or underfilling. A material blockage alarm detects material blockage at the discharge port and issues a prompt warning, preventing production interruptions or equipment damage due to blockage, thereby improving system reliability. A PLC control system implements a startup interlock to ensure safe system operation, prevent risks from misoperation, and safeguard operator safety. This achieves automated management. Inspection ports and adjustment plates provide convenient access for routine inspections and maintenance, reducing downtime. Specific distance settings for the paddle-rotating level gauge and alarm ensure accurate monitoring of material levels, avoiding misjudgments due to improper sensor placement and helping to promptly detect and address abnormalities. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the power transformation device structure of the expansion cold drying box;
[0019] Figure 2 for Figure 1 A magnified view of the structure of part A;
[0020] Figure 3 This is the left view of the power transformation device of the expansion cold drying box;
[0021] The names of the components in the figure are: 1. Hydraulic driver; 2. Mounting plate; 3. Mounting hole; 4. Spherical bearing; 5. Rotating plate; 6. Discharge box; 7. Rotary paddle level meter; 8. Middle material level alarm; 9. High material level alarm; 10. Material blockage alarm. DETAILED DESCRIPTION
[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention. Example 1
[0023] This example discloses a power transformation device for an expansion cold drying box, see Figures 1 to 3; It includes a dual hydraulic structure installed on the box body, and the dual hydraulic structure includes two independently set hydraulic drivers 1. The power output end of the hydraulic driver 1 is rotatably connected to the mounting plate 2. A plurality of mounting holes 3 are evenly spaced on the mounting plate 2 to install the spherical bearing 4. The spherical bearing 4 is installed on the flap door through the rotating plate 5, and the flap door is connected to the discharge box 6 below.
[0024] A lubricating oil hole is drilled above the mounting hole 3, and an internal thread is provided in the lubricating oil hole to install a grease nipple, and a spherical bearing is connected to the lower portion of the lubricating oil outlet of the grease nipple.
[0025] An inspection port is provided on the side of the box, and a movable adjustment plate is installed in the inspection port.
[0026] Rotary paddle level meter 7, middle material level alarm 8 and high material level alarm 9 are respectively installed at different heights of the box.
[0027] A material blocking alarm 10 is installed at the bottom of the discharge port of the discharge box.
[0028] It also includes a material level control switch, which is connected to the PLC carrying the control program to receive the sensing signals of the rotary level meter 7, the middle material level alarm 8, the high material level alarm 9 and the blockage alarm 10 to realize the start and stop control of the hydraulic pump.
[0029] The hydraulic drive includes an NLG3535 NZ-10-14-2-TP54 hydraulic pump.
[0030] The mounting plate is Q235A carbon steel plate, with 11 holes punched on the surface of the carbon steel plate at an equal distance of 230mm, with a diameter of φ42+0.02mm; the grease nipple size is M10*1mm.
[0031] The inspection port is a 1050*50mm rectangular inspection port, and the size of the movable adjustment plate is 1400*150*5mm.
[0032] The paddle level meter is 700mm away from the flap door, the middle level alarm is 1000mm away from the flap door, and the high level alarm is 1400mm away from the flap door.
[0033] During operation, in the power conversion unit of the expansion cold drying box, the operator uses a movable adjustment panel to open the inspection port and conduct routine pre-startup checks to ensure that all components are in normal condition. After the PLC control system is powered on, it automatically checks the status of various sensors, including the paddle level gauge, middle level alarm, high level alarm, and material blockage alarm, to confirm that there are no abnormal alarm signals. This allows the hydraulic pump to start. Hydraulic driver 1 activates according to preset logic or operator commands, driving the flap door open or close via the rotating connecting mounting plate 2. Discharge bin 6, located below the flap door, directs material to the discharge port for orderly discharge. Paddle level gauge 7, middle level alarm 8, and high level alarm 9 monitor material levels at different heights and transmit this information in real time to the PLC. If the material level reaches a set threshold, the corresponding alarm is triggered. A material blockage alarm 10, mounted at the bottom of the discharge bin outlet, continuously monitors for material blockage. If a blockage is detected, an alarm is immediately sounded and the current discharge operation is stopped to prevent further damage. Grease nipples ensure that moving parts such as the spherical bearing 4 are fully lubricated. Regularly injecting lubricating oil through the grease nipples reduces wear and extends service life, while simplifying daily maintenance work.
[0034] Although some preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including all changes and modifications that fall within the scope of the present invention as well as the preferred embodiments.
[0035] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of this application and their equivalents, the present invention is intended to include such modifications and variations.
Claims
1. A power transformation device for an expansion cold drying box, characterized by: It includes a dual hydraulic structure installed on the box body, and the dual hydraulic structure includes two independently arranged hydraulic drivers. The power output end of the hydraulic driver is rotatably connected to the mounting plate. A plurality of mounting holes are evenly spaced on the mounting plate to install joint bearings. The joint bearings are installed with a flap door through a rotating plate, and the flap door supports the discharge box below.
2. The power transformation device for the expansion cold drying box according to claim 1, characterized in that: A lubricating oil hole is drilled above the mounting hole, and an internal thread is provided in the lubricating oil hole for installing a grease nipple, and a spherical bearing is received below the lubricating oil outlet of the grease nipple.
3. The power transformation device for an expansion cold drying box according to claim 1, characterized in that: An inspection port is provided on the side of the expansion cold drying box, and a movable adjustment plate is installed in the inspection port.
4. The power transformation device for an expansion cold drying box according to claim 1, characterized in that: Rotary paddle level gauges, middle level alarms and high level alarms are respectively installed at different heights of the box body.
5. The power transformation device for an expansion cold drying box according to claim 4, characterized in that: A material blocking alarm is installed at the bottom of the discharge port of the discharge box.
6. The power transformation device for an expansion cold drying box according to claim 5, characterized in that: It also includes a material level control switch, which is connected to the PLC carrying the control program to receive the sensing signals of the paddle level meter, the middle material level alarm, the high material level alarm and the blockage alarm to realize the start and stop control of the hydraulic pump.
7. The power transformation device for an expansion cold drying box according to claim 1, characterized in that: The hydraulic drive includes an NLG3535 NZ-10-14-2-TP54 hydraulic pump.
8. The power transformation device for an expansion cold drying box according to claim 2, characterized in that: The mounting plate is a Q235A carbon steel plate, and 11 holes are punched on the surface of the carbon steel plate at an equal distance of 230 mm, with a diameter of φ42+0.02 mm; the size of the grease nipple is M10*1 mm.
9. The power transformation device for an expansion cold drying box according to claim 3, characterized in that: The inspection port is a 1050*50mm rectangular inspection port, and the size of the movable adjustment plate is 1400*150*5mm.
10. The power transformation device for an expansion cold drying box according to claim 4, characterized in that: The distance between the rotary paddle level meter and the flap door is 700 mm, the distance between the middle level alarm and the flap door is 1000 mm, and the distance between the high level alarm and the flap door is 1400 mm.
Citation Information
Patent Citations
Non-fried vacuum freeze puffing dryer
CN103005651B