Preprocessor for quickly unfreezing freeze-dried fruits

Abstract

The utility model discloses a preprocessor for quickly unfreezing freeze-dried fruits, which belongs to the technical field of fruit unfreezing, and is characterized in that the preprocessor comprises a shell, the front side of the shell is rotatably connected with a sealing door, and the front side of the shell is provided with a PLC (Programmable Logic Controller); a placement frame is arranged in the shell, a drainage hole is formed in the bottom of the inner wall of the placement frame, a swing assembly is arranged at the bottom of the placement frame, a spraying assembly is fixedly connected to the top of the placement frame, and by arranging the swing assembly, the placement frame can swing, so that freeze-dried fruits in the placement frame continuously change positions, and the freeze-dried fruits can be sprayed to the freeze-dried fruits. Compared with a standing state, all parts of the fruits can be heated and wetted more uniformly, the conditions that the surfaces of part of the fruits are dried and burnt due to local overheating and the interiors of the parts of the fruits are not completely unfrozen are effectively avoided, and it is ensured that each freeze-dried fruit can achieve the ideal unfreezing effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to fruit thawing technical field, especially in quick thawing freeze -dried fruit pretreater. BACKGROUND

[0002] In the modern food processing and preservation technology field, freeze -dried fruit is increasingly popular with consumers because of its significant advantages of retaining the original nutrients, color, flavor of fruit to the maximum extent, having a long shelf life and being convenient to store and transport.

[0003] The existing thawing device utilizes hot air distribution around the fruit to accelerate the flow speed, but the thawing method cannot improve the thawing speed, because the quick -frozen fruit quickly absorbs heat from the hot air, the outer layer is thawed quickly, the outer layer temperature is quickly raised to above 0 DEG C, there is a gap between the outer layer and the inner layer of the fruit pulp, the effect of heat transfer is discounted, and the internal part of the quick -frozen fruit is difficult to absorb heat and thaw, if the quick -frozen fruit is big, a hard block will be formed in the inside.

[0004] The existing patent (announcement number: CN218483685U) quick -frozen fruit thawing device utilizes normal temperature water to exchange heat, can thaw the inner layer and outer layer of quick -frozen fruit at the same time, and will not damage the fruit pulp, and guarantees the meat quality of fruit.

[0005] For the above problems, the existing patent provides a solution, but the hot water soaking thawing method can accelerate the thawing speed to a certain extent, but it is easy to cause the fruit to absorb water excessively, so that the taste of fruit becomes soft and rotten, loses the original crisp texture and unique flavor, and also can cause a large amount of nutrient loss.

[0006] Therefore, a quick thawing freeze -dried fruit pretreater is provided. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a quick thawing freeze -dried fruit pretreater, which can solve the problem that the existing hot water soaking thawing method can accelerate the thawing speed to a certain extent, but it is easy to cause the fruit to absorb water excessively, so that the taste of fruit becomes soft and rotten, loses the original crisp texture and unique flavor, and also can cause a large amount of nutrient loss.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a pre-processor for rapidly thawing freeze-dried fruit, comprising a housing, a sealing door rotatably connected to the front side of the housing, a PLC controller provided on the front side of the housing, a placement frame provided inside the housing with a drainage hole at the bottom of the inner wall of the placement frame, a swing assembly provided at the bottom of the placement frame, and a spray assembly fixedly connected to the top of the placement frame, the spray assembly including a U-shaped frame;

[0009] The swing assembly includes a drive motor, which is fixedly connected to the bottom of the inner wall of the housing. A turntable is fixedly connected to the output end of the drive motor. A crank is rotatably connected to the top of the turntable. A connecting plate is fixedly connected to the middle of the bottom of the placement frame. The other end of the crank is rotatably connected to the connecting plate.

[0010] Preferably, the output end of the drive motor is fixedly connected to a turntable, the top of the turntable is rotatably connected to a crank, the bottom center of the placement frame is fixedly connected to a connecting plate, and the other end of the crank is rotatably connected to the connecting plate.

[0011] Preferably, the surface of the fixed tube is fixedly connected with a plurality of atomizing nozzles, the number of atomizing nozzles is set to several and evenly distributed, and the atomizing nozzles are inclined.

[0012] Preferably, the top of the fixed pipe is fixedly connected to a metal corrugated pipe, the metal corrugated pipe penetrates the shell and is movably connected to the shell, the bottom of the surface of the metal corrugated pipe is fixedly connected to a connecting pipe, and the other end of the connecting pipe is fixedly connected to a water supply device.

[0013] Preferably, a heat collection chamber is fixedly connected to the top of the housing, and an industrial hot air blower is fixedly connected to the top of the heat collection chamber, with the output end of the industrial hot air blower fixedly connected to the heat collection chamber.

[0014] Preferably, the bottom of the heat collection cavity is fixedly connected to a heat outlet pipe, and the number of heat outlet pipes is set to multiple and evenly distributed.

[0015] Preferably, the inner wall of the housing has limit grooves on both sides, and the placement frame has limit wheels fixedly connected to both sides, with the limit wheels tumbling inside the limit grooves.

[0016] Preferably, a temperature sensor is fixedly connected to the inner wall of the housing, and the temperature sensor, drive motor, and industrial hot air blower are all electrically connected to the PLC controller.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application sets up a swing component, which can make the placement frame swing, allowing the freeze-dried fruit in the placement frame to continuously change position, so that the freeze-dried fruit can receive hot air thawing from all directions and multiple angles. Compared with the static state, the fruit is heated and moisturized more evenly in all parts, effectively avoiding the situation where the surface of some fruit dries and burns due to local overheating, while the inside is not completely thawed, ensuring that every freeze-dried fruit can achieve the ideal thawing effect;

[0019] 2. This application incorporates a spray assembly that atomizes water into tiny particles and sprays them evenly onto the surface of freeze-dried fruit at a specific angle. Because the atomizing nozzles are evenly distributed, each fruit receives an appropriate amount of water mist, resulting in more even moisture replenishment during the thawing process. This helps the freeze-dried fruit to fully and consistently regain moisture, improving the uniformity of taste and texture. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the rapid thawing freeze-dried fruit preprocessor of this utility model;

[0021] Figure 2 This is a cross-sectional view of the shell of this utility model;

[0022] Figure 3 This is a schematic diagram showing the connection between the placement frame and the swing assembly of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the swing assembly of this utility model;

[0024] Figure 5 This is a structural diagram of the spray assembly of this utility model.

[0025] In the diagram, 1. Housing; 2. Sealed door; 3. PLC controller; 4. Placement frame; 5. Drain hole; 6. Swing assembly; 601. Drive motor; 602. Turntable; 603. Crank; 604. Connecting plate; 7. Spray assembly; 701. U-shaped frame; 702. Fixing pipe; 703. Atomizing nozzle; 704. Metal corrugated pipe; 705. Connecting pipe; 8. Heat collection chamber; 9. Industrial hot air blower; 10. Heat outlet pipe; 11. Limiting groove; 12. Limiting wheel; 13. Temperature sensor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 The present invention provides the following technical solution:

[0028] A rapid defrosting freeze-dried fruit preprocessor includes a housing 1, a sealing door 2 rotatably connected to the front side of the housing 1, a PLC controller 3 on the front side of the housing 1, a placement frame 4 inside the housing 1 with a drainage hole 5 at the bottom of the inner wall of the placement frame 4, a swing assembly 6 at the bottom of the placement frame 4, and a spray assembly 7 fixedly connected to the top of the placement frame 4. The spray assembly 7 includes a U-shaped frame 701.

[0029] The swing assembly 6 includes a drive motor 601, which is fixedly connected to the bottom of the inner wall of the housing 1. The output end of the drive motor 601 is fixedly connected to a turntable 602. The top of the turntable 602 is rotatably connected to a crank 603. The middle of the bottom of the placement frame 4 is fixedly connected to a connecting plate 604. The other end of the crank 603 is rotatably connected to the connecting plate 604.

[0030] In this embodiment: by setting the swing component 6, after the drive motor 601 starts, it will drive the turntable 602 to make circular motion around the axis of the output shaft of the drive motor 601 at the same angular velocity. When the turntable 602 rotates, it will drive the crank 603 to make circular motion, so that the other end of the crank 603 can pull the connecting plate 604 to make linear reciprocating motion, thereby driving the placement frame 4 to swing back and forth in the horizontal direction. The swing of the placement frame 4 can make the freeze-dried fruit change position continuously, so that the hot air can cover all parts of the fruit more comprehensively and evenly, avoiding local overheating or over-humidification, ensuring that each fruit can be heated and humidified evenly, greatly improving the thawing uniformity, and making the quality of the thawed fruit more consistent. When the placement frame 4 swings back and forth under the drive of the crank 603, the limiting wheel 12 rolls along the limiting groove 11, limiting the displacement range of the placement frame 4 during the swing process, preventing it from shaking or deviating, and ensuring that the placement frame 4 can swing smoothly according to the predetermined trajectory.

[0031] Specifically, such as Figure 5 As shown, the U-shaped frame 701 is fixedly connected to both sides of the top of the placement frame 4, and the U-shaped frame 701 is fixedly connected to the inside of the fixing tube 702.

[0032] Specifically, such as Figure 5 As shown, a plurality of atomizing nozzles 703 are fixedly connected to the surface of the fixed tube 702. The number of atomizing nozzles 703 is set to several and evenly distributed, and the atomizing nozzles 703 are set at an angle.

[0033] Specifically, such as Figure 5As shown, a metal corrugated pipe 704 is fixedly connected to the top of the fixed pipe 702. The metal corrugated pipe 704 passes through the housing 1 and is movably connected to the housing 1. A connecting pipe 705 is fixedly connected to the bottom of the surface of the metal corrugated pipe 704. A water supply device is fixedly connected to the other end of the connecting pipe 705.

[0034] In this embodiment: With the above settings, the water supply equipment can deliver purified water to the metal corrugated pipe 704 through the connecting pipe 705. The metal corrugated pipe 704 has good flexibility, which can not only ensure stable water flow, but also adapt to the position changes of the placement frame 4 during the swinging process, ensuring that the water supply is not affected. Then, the purified water will flow from the metal corrugated pipe 704 into the fixed pipe 702. The fixed pipe 702 plays the role of collecting and distributing water flow. It can evenly distribute the water flowing from the metal corrugated pipe 704 to each atomizing nozzle 703. When the water flows through the atomizing nozzle 703, under the action of the atomizing nozzle 703, the water flow will be dispersed into tiny water mist particles. The inclined atomizing nozzle 703 can make the sprayed water mist cover the freeze-dried fruit in the placement frame 4 at a specific angle, ensuring that the water mist can be evenly sprinkled on the surface of the freeze-dried fruit. Whether the fruit is granular or flaky, it can fully contact the water mist, thereby achieving the purpose of replenishing moisture to the freeze-dried fruit, assisting thawing, and improving the thawing effect.

[0035] Specifically, such as Figure 1 , Figure 2 As shown, a heat collection chamber 8 is fixedly connected to the top of the interior of the housing 1, and an industrial hot air blower 9 is fixedly connected to the top of the heat collection chamber 8. The output end of the industrial hot air blower 9 is fixedly connected to the heat collection chamber 8.

[0036] Specifically, such as Figure 2 As shown, the bottom of the heat collection cavity 8 is fixedly connected to a heat outlet pipe 10, and the number of heat outlet pipes 10 is set to multiple and evenly distributed.

[0037] In this embodiment: Through the above settings, the industrial hot air blower 9 can quickly generate a large amount of hot air, efficiently converting electrical energy into heat energy, providing a sufficient heat source for the thawing process, ensuring that the temperature inside the heat collection chamber 8 is raised in a short time to meet the needs of rapid thawing. After the hot air generated by the industrial hot air blower 9 enters the heat collection chamber 8, it is evenly distributed to the space where the placement frame 4 is located through these heat outlet pipes 10. Multiple heat outlet pipes 10 ensure that the heat can cover the freeze-dried fruit in an all-round and even manner, avoiding local overheating or undercooling, ensuring that each freeze-dried fruit can be thawed at a suitable temperature, improving the uniformity of thawing, and ensuring the consistency of the fruit quality after thawing.

[0038] Specifically, such as Figure 2 As shown, limit grooves 11 are provided on both sides of the inner wall of the housing 1, and limit wheels 12 are fixedly connected to both sides of the placement frame 4. The limit wheels 12 are tumbling connected inside the limit grooves 11.

[0039] Specifically, such as Figure 1 , Figure 2 , Figure 3 As shown, a temperature sensor 13 is fixedly connected to the inner wall of the housing 1. The temperature sensor 13, the drive motor 601, and the industrial hot air blower 9 are all electrically connected to the PLC controller 3.

[0040] In this embodiment: With the above settings, the limiting groove 11 can cooperate with the limiting wheel 12. When the placement frame 4 swings back and forth under the drive of the swing component 6, the limiting wheel 12 rolls along the limiting groove 11, which can effectively limit the swing range of the placement frame 4 and prevent it from shaking or deviating during the swing process. This ensures that the placement frame 4 can swing smoothly along the predetermined trajectory, providing a stable and regular dynamic thawing environment for the freeze-dried fruit in the placement frame 4. The temperature sensor 13 can monitor the temperature change inside the shell 1 in real time, convert the collected temperature data into an electrical signal, and transmit it to the PLC controller 3. Then, the PLC controller 3 will control the heat output of the industrial hot air blower 9 to ensure that the temperature inside the shell 1 is always maintained in a suitable thawing temperature range, which greatly improves the accuracy and automation of the thawing process and ensures that the freeze-dried fruit can be thawed quickly, efficiently, and uniformly under the optimal temperature conditions.

[0041] Working Principle: When pre-treating freeze-dried fruit for thawing, first open the sealing door 2, and evenly place the freeze-dried fruit to be thawed in the placement frame 4. Then close the sealing door 2. The PLC controller 3 starts the industrial hot air blower 9 and the drive motor 601. The industrial hot air blower 9 can quickly generate a large amount of hot air. After the hot air enters the heat collection chamber 8, it will be evenly distributed to the space where the placement frame 4 is located through the heat outlet pipe 10. The drive motor 601 will drive the turntable 602 to rotate. When the turntable 602 rotates, it will drive the crank 603 to make a circular motion, so that the other end of the crank 603 can pull the connecting plate 604 to make a linear reciprocating motion. This will cause the placement frame 4 to swing back and forth in the horizontal direction. The swing of the placement frame 4 can make the freeze-dried fruit constantly change position, so that the hot air can reach the fruit. The spray system comprehensively and evenly covers all parts of the freeze-dried fruit, achieving a uniform thawing effect. Temperature sensor 13 monitors the temperature inside the housing 1 in real time and feeds the data back to PLC controller 3. When the temperature reaches the set range, PLC controller 3 will start the spray assembly 7 according to the preset program. The water supply equipment will deliver pure water to the atomizing nozzle 703 through the metal corrugated pipe 704 and the fixed pipe 702. Under the action of the atomizing nozzle 703, the water flow will be dispersed into tiny water mist particles, which will then cover the freeze-dried fruit in the placement frame 4 at a specific angle, ensuring that the water mist can be evenly sprinkled on the surface of the freeze-dried fruit. Whether the fruit is granular or flaky, it can fully contact the water mist, thereby achieving the purpose of replenishing moisture to the freeze-dried fruit, assisting thawing, and improving the thawing effect.

[0042] It should be noted that the specific structure, working principle and usage method of the water supply equipment in this application are all existing technologies, and therefore are not described in detail in the text.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick thawing lyophilized fruit pre-treater comprising a housing (1), characterized in that: The front side of the shell (1) is rotatably connected with a sealing door (2), the front side of the shell (1) is provided with a PLC controller (3), the inside of the shell (1) is provided with a placing frame (4), and the bottom of the inner wall of the placing frame (4) is provided with a drainage hole (5), the bottom of the placing frame (4) is provided with a swing assembly (6), and the top of the placing frame (4) is fixedly connected with a spraying assembly (7), and the spraying assembly (7) comprises a U-shaped frame (701). The swing assembly (6) comprises a driving motor (601), the driving motor (601) is fixedly connected to the bottom of the inner wall of the shell (1), the output end of the driving motor (601) is fixedly connected with a rotating disc (602), the top of the rotating disc (602) is rotatably connected with a crank (603), the middle of the bottom of the placing frame (4) is fixedly connected with a connecting plate (604), and the other end of the crank (603) is rotatably connected with the connecting plate (604).

2. A quick thawing lyophilized fruit pre-treater as claimed in claim 1, wherein: The U-shaped frame (701) is fixedly connected to the top of the placing frame (4) on both sides, and the inside of the U-shaped frame (701) is fixedly connected with a fixed pipe (702).

3. A quick thawing lyophilized fruit pre-treater as claimed in claim 2, wherein: A plurality of atomizing nozzles (703) are fixedly connected to the surface of the fixed pipe (702), the number of the atomizing nozzles (703) is several and is uniformly distributed, and the atomizing nozzles (703) are inclined.

4. A quick thawing lyophilized fruit pre-treater as claimed in claim 2, wherein: The top of the fixed pipe (702) is fixedly connected with a metal bellows (704), the metal bellows (704) penetrates through the shell (1) and is movably connected with the shell (1), the bottom of the surface of the metal bellows (704) is fixedly connected with a connecting pipe (705), and the other end of the connecting pipe (705) is fixedly connected with a water supply device.

5. A quick thawing lyophilized fruit pre-treater as claimed in claim 1, wherein: The top of the inside of the shell (1) is fixedly connected with a heat collecting cavity (8), the top of the heat collecting cavity (8) is fixedly connected with an industrial hot air blower (9), and the output end of the industrial hot air blower (9) is fixedly connected with the heat collecting cavity (8).

6. A quick thawing lyophilized fruit pre-treater as claimed in claim 5, wherein: The bottom of the heat collecting cavity (8) is fixedly connected with a heat outlet pipe (10), and the number of the heat outlet pipe (10) is multiple and is uniformly distributed.

7. A quick thawing lyophilized fruit pre-treater as claimed in claim 1, wherein: Both sides of the inner wall of the shell (1) are provided with limiting grooves (11), both sides of the placing frame (4) are fixedly connected with limiting wheels (12), and the limiting wheels (12) are rollingly connected in the limiting grooves (11).

8. A quick thawing lyophilized fruit pre-treater as claimed in claim 5 wherein: The inner wall of the shell (1) is fixedly connected with a temperature sensor (13), and the temperature sensor (13), the driving motor (601) and the industrial hot air blower (9) are electrically connected with the PLC controller (3).

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