Cleaning equipment and method for dipping type vacuum packaging bag for fresh litchis after freezing sleep

Abstract

The invention relates to the technical field of cleaning equipment, and particularly discloses a cleaning device and method for a fresh litchi dipping type after-freeze-sleep vacuum packaging bag, the cleaning device comprises a cleaning box and an overhauling plate, a soaking area, a cleaning area and an air drying area are sequentially arranged in the cleaning box from left to right, and a water inlet pipe is fixedly installed at an inlet of the soaking area; a drainage pipe is fixed to the tail end of the soaking area in a penetrating mode, a material lifting conveying belt is arranged in the soaking area, and the top of the material lifting conveying belt extends into the cleaning area. Through the steel mesh type conveying belt extending to the soaking liquid, soaked frozen sleep litchi bags are fished out, wiped and air-dried, manual operation is not needed, compared with a traditional mode, the efficiency is improved by ten times, the link of making contact with ice water manually is completely eliminated, the sanitation risk of the manual working procedure is completely eradicated, and meanwhile constant-temperature ice water updating is achieved through linkage of a water cooling machine and a water inlet and outlet valve; the food safety is effectively guaranteed, and meanwhile, the cleaning efficiency of the frozen sleep litchi bag is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning equipment, in particular to equipment and a method for cleaning a vacuum packaging bag of fresh lychees after being immersed in a frozen state. Background Art

[0002] Frozen lychees are designed to solve the problem of lychee preservation. The existing ultra-low temperature fresh-keeping and freezing technology can keep lychees fresh for 10 months. After the frozen lychees are thawed, the color, aroma and taste can be maintained at more than 80% to 90%, which can meet the needs of consumers to enjoy fresh lychees all year round.

[0003] Lychee immersion freezing is a method in which the lychees are first vacuum-packed and then immersed in a freezing liquid at -30°C for heat exchange, which quickly brings the core temperature of the lychees to a temperature of minus ten degrees Celsius. Because there is residual freezing liquid in the vacuum bag after immersion, it affects consumers' perception. The current practice is to hold the entire bag of lychees in ice water for 2 seconds, then wipe it dry with a cloth.

[0004] Manual wiping is inefficient. Workers' hands will lose flexibility if they are often soaked in ice water. Wearing thermal and waterproof gloves will also affect the flexibility of workers' hands. The air permeability and comfort are also low. Manual wiping is prone to operational errors, resulting in incomplete cleaning of the freezing liquid in some packaging bags. Wiping with cloth will easily cause the thread to fall off, which can easily lead to food safety problems. The ice water needs to be changed frequently, and the process is relatively cumbersome. Summary of the Invention

[0005] The purpose of the present invention is to provide a device and method for cleaning vacuum packaging bags of fresh lychees after immersion freezing, so as to solve the following technical problems: how to efficiently and comprehensively clean the freezing liquid on the vacuum packaging belts of lychees after immersion freezing, and avoid damaging the lychees during cleaning.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A device and method for cleaning vacuum packaging bags for fresh lychees after being immersed in frozen water comprises a cleaning box and an access panel. The cleaning box comprises a soaking area, a cleaning area, and an air-drying area, arranged from left to right. A water inlet pipe is fixedly installed at the inlet of the soaking area, and a drain pipe is fixed through the end of the soaking area. A material conveyor belt is arranged inside the soaking area, and the top of the material conveyor belt extends into the interior of the cleaning area.

[0008] A cleaning assembly is provided inside the cleaning area of the cleaning box, a flip assembly is provided at the unloading end of the cleaning assembly, a unloading conveyor belt is provided at the unloading end of the flip assembly which moves in the opposite direction to the loading conveyor belt, and an air knife assembly is provided on the top surface of the flip assembly and the unloading conveyor belt in the air-drying area of the cleaning box;

[0009] The cleaning component can alternately wipe the top and bottom of frozen lychee buns of different thicknesses;

[0010] A turning component is used to turn over the frozen lychee bag;

[0011] The wind knife component can dry the frozen lychee bags before and after they are turned over.

[0012] As a preferred solution of the present invention: the flipping assembly includes a flipping conveyor belt and an adsorption part, the flipping conveyor belt is installed inside the cleaning box at the unloading end of the starting conveyor belt, the flipping conveyor belt is a horizontally placed J-shape, and the adsorption part is provided inside the curved section of the flipping conveyor belt, which is used to adsorb and fix the packaging bag on the flipping conveyor belt at the curved section.

[0013] As a preferred solution of the present invention: the cleaning assembly includes a fixed scraper, a movable scraper and a drive conveyor belt, a liftable support frame is arranged above the top of the material conveyor belt, the top surface of the support frame is rotatably connected to a lifting screw, and the lifting screw is threadedly sleeved on the top of the cleaning box, a detachable fixed scraper is fixed inside the support frame, a drive conveyor belt is installed inside the support frame, a driving part is arranged on both sides of the support frame, and a detachable movable scraper is fixed inside the cleaning box between the material conveyor belt and the flipping conveyor belt.

[0014] As a preferred solution of the present invention: the adsorption part includes a panel, an air duct, an air supply duct and a fan, the interior of the curved section of the flip conveyor belt is sleeved with a panel, both ends of the panel are fixed on the inner wall of the cleaning box, one end of the panel is equidistantly penetrated and fixed with several air ducts, the ends of the air ducts extending to the outside of the cleaning box are penetrated and fixed on the air supply duct, one end of the air supply duct is penetrated and fixed on the air inlet end of the fan, and the fan is fixedly installed on the cleaning box.

[0015] As a preferred solution of the present invention: the wind knife assembly includes a control air duct, an air hood 1, an air hood 2 and a swinging part, and the air hood 1 and the air hood 2 placed perpendicular to each other are arranged above the flip conveyor belt and the unloading conveyor belt, the air hood 1 and the air hood 2 are both fixed with the air hood 2 on the top, and a corrugated air duct is fixed on the top of the air hood 2, and the sides of the air hood 1 and the air hood 2 are provided with a swinging part for controlling the swing of the air hood 1 and the air hood 2, and each group of two corrugated air ducts are fixed on the air outlet duct, and the other ends of the two air outlet ducts are fixed on the air outlet end of the fan.

[0016] As a preferred solution of the present invention: the swinging part also includes a connecting rod, a rotating rod, a swing plate and a bevel gear, each group of two control air duct side walls are fixed with a connecting rod, each of the connecting rods is fixed on a rotating rod, each of the connecting rods is rotatably sleeved inside the top plate, the top plate is fixed on the top surface inside the cleaning box, the other end of each rotating rod is rotatably connected to the swing plate, each swing plate is provided with a slide groove, each slide groove is slidably sleeved with a driving rod, one end of the driving rod is fixed on the bevel gear, the bevel gears are rotatably connected to the top plate, and each group of two bevel gears are perpendicular to each other and meshingly connected.

[0017] The transmission mechanism that this invention relates to is that this invention relates to a gear train which is mounted on a gear train and is designed to move relative to the gear train, and the gear train is designed to move relative to the gear train, and the gear train is designed to move relative to the gear train.

[0018] As a preferred solution of the present invention: a rotating shaft is fixed to the bevel gear horizontal to the movable pulley, and one end of the rotating shaft extends to the outside of the cleaning box and is connected to the fixed pulley through a belt and a pulley, and the upper and lower bevel gears are connected through another set of belts and pulleys, and the unloading conveyor belt is connected to the fixed pulley through a belt and a pulley, and the flip assembly belt and pulley are connected to the picking up conveyor belt.

[0019] As a preferred solution of the present invention: the material conveyor belt is configured as a Z-shape for conveying frozen lychee bags, and an inspection plate is installed inside the cleaning box above the material conveyor belt. One end of the inspection plate is rotatably connected to the cleaning box by a hinge, and the other end is detachably fixed to the top surface of the cleaning box by a fixing piece.

[0020] As a preferred embodiment of the present invention: a method for cleaning a vacuum packaging bag of fresh lychees after being immersed in frozen food, the cleaning method comprises the following steps:

[0021] S1: Cold water is poured into the soaking area through the water inlet pipe, and the frozen lychee bags are placed in the soaking area inside the cleaning box to soak, so that the freezing liquid dissolves in the water. During the soaking process, the drain pipe continuously drains the old water from the soaking area. The soaked frozen lychee bags are transported to the cleaning component through the material conveyor belt;

[0022] S2: The top surface of the frozen lychee bag arriving at the cleaning assembly is first wiped by a moving scraper under the conveyor belt, and then pushed by the drive conveyor belt to drive the frozen lychee bag to pass through the fixed scraper, and the bottom surface of the frozen lychee bag is wiped by the fixed scraper;

[0023] S3: After the initial wiping is completed, the frozen lychee bag enters the flip conveyor belt under the drive conveyor belt. The wind hood 1 and wind hood 2 on the top of the flip conveyor belt swing in two directions to blow and scrape the top surface of the frozen lychee bag. After the top surface of the frozen lychee bag is air-dried, the frozen lychee bag moves to the position of the coaming plate under the drive conveyor belt. Under the negative pressure adsorption inside the coaming plate, the frozen lychee bag is moved to the top surface of the unloading conveyor belt in contact with the flip conveyor belt;

[0024] S4: The frozen lychee bag that reaches the top of the unloading conveyor loses its adsorption force and falls on the top surface of the unloading conveyor. Driven by the unloading conveyor, it passes through another set of air knife components. The other set of air knife components blows and scrapes the top surface of the turned frozen lychee bag, so that both sides of the frozen lychee bag can be air-dried, and finally discharged from the unloading conveyor.

[0025] Beneficial effects of the present invention:

[0026] 1. The present invention uses a steel mesh conveyor belt extended to the soaking liquid. After soaking, the frozen lychee bags are fished out and wiped and air-dried without manual operation. Compared with the traditional method, the efficiency is improved ten times. The manual contact with ice water is completely eliminated, eliminating the health risks of manual processes. At the same time, the constant temperature of ice water is achieved by linking the water chiller with the inlet and outlet valves, effectively ensuring food safety and improving the cleaning efficiency of the frozen lychee bags.

[0027] 2. The present invention can scrape and clean both sides of the frozen lychee bag by staggered conveying and scraping. On the one hand, it can avoid residual freezing liquid on the surface of the frozen lychee bag, and on the other hand, it can scrape off the water droplets on the surface, which is convenient for subsequent air drying.

[0028] 3. The present invention uses staggered swing air drying. During the air drying, the air knives formed by two mutually perpendicular air hoods can blow and scrape the surface of the frozen lychee bag, which can dry the frozen lychee bag more comprehensively and quickly.

[0029] 4. The present invention adopts a movable design of the cleaning components. Under the premise of synchronous driving, the spacing of the cleaning components is adjusted according to the thickness of the frozen lychee bag, ensuring that the frozen lychee bag can be stably driven to move and the surface of the frozen lychee bag can be wiped and cleaned during wiping.

[0030] 5 The present invention adopts an adsorption-type turning-over design. When turning over during air drying, the frozen lychee bag is turned over after adsorption and then released, so as to avoid collision caused by the frozen lychee bag rolling directly from one conveyor belt to another. The frozen lychee bag can be better protected during cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below with reference to the accompanying drawings.

[0032] Figure 1 This is a front structural diagram of the vacuum packaging bag cleaning device of the present invention;

[0033] Figure 2 This is a schematic diagram of the back structure of the vacuum packaging bag cleaning device of the present invention;

[0034] Figure 3 This is a schematic cross-sectional view of a cleaning device for vacuum packaging bags according to the present invention;

[0035] Figure 4 This is a schematic diagram of the internal structure of the vacuum packaging bag cleaning equipment of the present invention;

[0036] Figure 5 This is a schematic diagram of the back structure of the cleaning component of the present invention;

[0037] Figure 6 It is a schematic structural diagram of the driving portion of the cleaning component in the present invention;

[0038] Figure 7 It is a schematic structural diagram of the adsorption part in the present invention;

[0039] Figure 8 It is a schematic structural diagram of the wind knife assembly in the present invention.

[0040] Reference numerals: 1, cleaning box; 2, water inlet pipe; 3, drainage pipe; 4, material conveyor belt; 5, cleaning assembly; 51, fixed scraper; 52, mobile scraper; 53, drive conveyor belt; 54, support frame; 55, lifting screw; 56, drive unit; 561, gear 1; 562, gear 2; 563, fixed pulley; 564, support plate; 565, adjustment belt; 566, mobile pulley; 567, pulley plate; 568, tension pulley; 569, drive motor; 6, flip assembly; 61 , flip conveyor belt; 62, adsorption part; 621, enclosure; 622, air guide duct; 623, air supply duct; 624, fan; 7, wind knife assembly; 71, control air duct; 72, air hood 1; 73, air hood 2; 74, corrugated air duct; 75, air outlet duct; 76, swing part; 761, connecting rod; 762, rotating rod; 763, top plate; 764, swing plate; 765, slide; 766, driving rod; 767, bevel gear; 768, rotating shaft; 8, unloading conveyor belt; 9, inspection plate. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0042] See also Figure 1-8 As shown, in one embodiment, the present application provides a device and method for cleaning vacuum packaging bags of fresh lychees after immersion and freezing, comprising a cleaning box 1 and an access panel 9. The cleaning box 1 is provided with a soaking area, a cleaning area, and an air-drying area from left to right. A water inlet pipe 2 is fixedly installed at the inlet of the soaking area, and the water inlet pipe 2 is externally connected to the water outlet of the chiller. A temperature sensor is installed inside the soaking area to monitor the temperature of the soaking area in real time. A drain pipe 3 is fixed through the end of the soaking area. The water inlet pipe 2 and the drain pipe 3 are controlled by a water valve. A material conveyor belt 4 is provided inside the soaking area, and the top of the material conveyor belt 4 extends to the inside of the cleaning area.

[0043] A cleaning assembly 5 is provided inside the cleaning area of the cleaning box 1. A turning assembly 6 is provided at the unloading end of the cleaning assembly 5. A unloading conveyor belt 8 that moves in the opposite direction to the starting conveyor belt 4 is provided at the unloading end of the turning assembly 6. An air knife assembly 7 is provided on the top surface of the turning assembly 6 and the unloading conveyor belt 8 in the air-drying area of the cleaning box 1.

[0044] Cleaning component 5, capable of alternately wiping the upper and lower surfaces of frozen lychee bags of different thicknesses;

[0045] A turning assembly 6 is used to turn over the frozen lychee bag;

[0046] The air knife assembly 7 can dry the frozen lychee bag before and after turning it over;

[0047] Among them, the material conveyor belt 4 is set to Z shape for conveying frozen lychee bags. An access plate 9 is installed inside the cleaning box 1 above the material conveyor belt 4. One end of the access plate 9 is rotatably connected to the cleaning box 1 through a hinge, and the other end is detachably fixed to the top surface of the cleaning box 1 through a fixing piece.

[0048] The flip assembly 6 includes a flip conveyor belt 61 and an adsorption portion 62. The flip conveyor belt 61 is installed inside the cleaning box 1 at the unloading end of the starting conveyor belt 4. The flip conveyor belt 61 is a J-shape placed horizontally. The adsorption portion 62 is provided inside the curved section of the flip conveyor belt 61 for adsorbing and fixing the packaging bag on the flip conveyor belt 61 at the curved section. The adsorption portion 62 includes a surrounding plate 621, an air guide pipe 622, an air supply pipe 623 and a fan 624. The curved section of the flip conveyor belt 61 is sleeved with a surrounding plate 621. Both ends of the surrounding plate 621 are fixed to the inner wall of the cleaning box 1. Several air guide pipes 622 are equidistantly fixed at one end of the surrounding plate 621. The ends of the air guide pipes 622 extending to the outside of the cleaning box 1 are all fixed on the air supply pipe 623. One end of the air supply pipe 623 is fixed on the air inlet end of the fan 624. The fan 624 is fixed on the cleaning box 1.

[0049] The cleaning assembly 5 includes a fixed scraper 51, a movable scraper 52 and a drive conveyor belt 53. A liftable support frame 54 is provided above the top of the feeding conveyor belt 4. The top surface of the support frame 54 is rotatably connected to a lifting screw 55. The lifting screw 55 is threadedly sleeved on the top of the cleaning box 1. A detachable fixed scraper 51 is fixed inside the support frame 54. The drive conveyor belt 53 is installed inside the support frame 54. A driving part 56 is provided on both sides of the support frame 54. A detachable movable scraper 52 is fixed inside the cleaning box 1 between the feeding conveyor belt 4 and the flip conveyor belt 61. Under the transportation of the feeding conveyor belt 4, the top surface of the frozen lychee bag that reaches the cleaning assembly 5 is first scraped by the movable scraper 52, driving the frozen lychee bag to pass through the fixed scraper 51, and the bottom surface of the frozen lychee bag is scraped by the fixed scraper 51;

[0050] The wind knife assembly 7 includes a control air duct 71, a wind cover 1 72, a wind cover 2 73 and a swinging portion 76. A wind cover 1 72 and a wind cover 2 73 are arranged perpendicular to each other above the flip conveyor 61 and the unloading conveyor 8. The wind cover 1 72 and the wind cover 2 73 are arranged in a T-shape. When swinging, they can blow the frozen lychee bag in the front, back, left and right directions. The tops of the wind cover 1 72 and the wind cover 2 73 are fixed with the wind cover 2 73, and the tops of the wind cover 2 73 are fixed with a corrugated wind cover 73. The tube 74 provides swing space for the control air duct 71. The sides of the air hood 1 72 and the air hood 2 73 are both provided with a swing part 76 for controlling the swing of the air hood 1 72 and the air hood 2 73. Each set of two corrugated air ducts 74 are fixed on the air outlet pipe 75. The other ends of the two air outlet pipes 75 are fixed on the air outlet end of the fan 624. This solves the problems of low efficiency of manual cleaning, long-term contact of employees' hands with ice water, sanitation hazards caused by drying with cloth, and frequent water changes in the ice water tank.

[0051] The swinging portion 76 also includes a connecting rod 761, a rotating rod 762, a swinging plate 764 and a bevel gear 767. The side walls of each group of two control air ducts 71 are fixed with a connecting rod 761, each connecting rod 761 is fixed on a rotating rod 762, each connecting rod 761 is rotatably sleeved inside the top plate 763, the top plate 763 is fixed to the top surface of the cleaning box 1, the other end of each rotating rod 762 is rotatably connected to the swinging plate 764, each swinging plate 764 is provided with a sliding groove 765, each sliding groove 765 is slidably sleeved with a driving rod 766, one end of the driving rod 766 is fixed on the bevel gear 767, the bevel gear 767 is rotatably connected to the top plate 763, and each group of two bevel gears 767 are perpendicular to each other and meshingly connected;

[0052] The driving part 56 includes a gear 1 561, a gear 2 562, a fixed pulley 563, an adjusting belt 565 and a movable pulley 566. Both ends of the internal transmission roller on one side of the material conveyor belt 4 extend to the outside of the cleaning box 1 and are fixed with a gear 1 561. The side of the gear 1 561 is meshed and connected with the gear 2 562. The gear 2 562 is rotatably connected to the cleaning box 1. A support plate 564 is fixed to the top surface of the cleaning box 1 above the gear 1 561. A fixed pulley 563 is fixed to the side of the gear 1 561. The side of the support plate 564 is rotatably connected to another fixed pulley 563. The two fixed pulleys 563 are fixed to the side of the gear 1 561. The fixed pulley 563 rotates and is connected to the drive through the adjusting belt 565. Both ends of the internal transmission roller on one side of the driving transmission belt 53 extend to the outside of the cleaning box 1 and are fixed with a moving pulley 566. The moving pulley 566 is wound around the side of the adjusting belt 565. The adjusting belts 565 on both sides of the moving pulley 566 are wound around the tension wheel 568. The tension wheel 568 is rotatably connected to the wheel plate 567. Each wheel plate 567 is slidably connected to the side wall of the cleaning box 1. The side of the gear 2 562 is fixed to the output end of the drive motor 569, and the drive motor 569 is fixedly installed on the cleaning box 1

[0053] A rotating shaft 768 is fixed to the bevel gear 767 horizontal to the moving pulley 566. One end of the rotating shaft 768 extends to the outside of the cleaning box 1 and is connected to the fixed pulley 563 through a belt and a pulley. The upper and lower bevel gears 767 are connected through another set of belts and pulleys. The unloading conveyor belt 8 is connected to the fixed pulley 563 through a belt and a pulley. The belt and pulley of the flip assembly 6 are connected to the picking conveyor belt 4. Through unified drive control, starting and stopping are more convenient and labor-saving during operation.

[0054] Working principle: First, turn the lifting screw 55 to drive the support frame 54 to move up and down, and then adjust the distance between the moving scraper 52, the driving transmission belt 53 and the fixed scraper 51 according to the thickness of the frozen lychee bag. When adjusting, pull the moving pulley 566 to move inside the adjustment belt 565, and at the same time drive the wheel plate 567 to move on the cleaning box 1. After the adjustment is completed, fill the soaking area with cold water through the water inlet pipe 2, and put the frozen lychee bag into the soaking area inside the cleaning box 1 to soak, so that the frozen liquid dissolves in the water. While soaking, the drain pipe 3 continuously drains the old water from the soaking area , forming a circulating water flow, and making the water temperature reach 2-5°, the soaked frozen lychee bag falls on the top surface of the material conveyor belt 4 under the action of gravity, and is transported to the bottom of the mobile scraper 52 through the material conveyor belt 4, and is scraped by the mobile scraper 52. After wiping, the frozen lychee bag is moved to the point where the driving conveyor belt 53 and the material conveyor belt 4 overlap. Driven by the driving conveyor belt 53 and the material conveyor belt 4, it moves to the top surface of the fixed scraper 51, and is wiped by the fixed scraper 51 under the drive of the driving conveyor belt 53, and then reaches the flip conveyor belt 61;

[0055] After the preliminary wiping is completed, the bag enters the flip conveyor 61 driven by the driving conveyor belt 53. When the material conveyor belt 4 moves, the flip conveyor belt 61 is driven to run synchronously. At the same time, the bevel gear 767 is driven to rotate through the belt and the pulley. The rotation of the bevel gear 767 drives the driving rod 766 to do a circular motion and pushes the swing plate 764 to swing, thereby driving the wind cover 1 72 and the control air duct 71 to swing horizontally and vertically respectively. The wind cover 1 72 and the wind cover 2 73 on the top of the flip conveyor belt 61 swing in two directions to blow and scrape the top surface of the frozen lychee bag. After the top surface of the frozen lychee bag is dried, the frozen lychee bag is moved to the position of the enclosure plate 621 under the drive of the flip conveyor belt 61. At this time, the fan 624 absorbs the air flow inside the enclosure 621 through the air supply pipe 623 and the air guide pipe 622, and blows the air flow into the wind cover 1 72 and the wind cover 2 73, forming a negative pressure inside the enclosure 621. Under the negative pressure adsorption inside the enclosure 621, the frozen lychee bag is attached to the flip conveyor belt 61 and moves to the top surface of the unloading conveyor belt 8. The frozen lychee bag that reaches the top of the unloading conveyor belt 8 loses the adsorption force and falls on the top surface of the unloading conveyor belt 8. Driven by the unloading conveyor belt 8, it passes through another set of wind knife components 7. The other set of wind knife components 7 blows and scrapes the top surface of the flipped frozen lychee bag, so that both sides of the frozen lychee bag can be air-dried and finally discharged from the unloading conveyor belt 8.

[0056] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A device for cleaning vacuum packaging bags of fresh lychees after being immersed in frozen water, comprising a cleaning box (1) and an inspection plate (9), characterized in that: The cleaning box (1) is provided with a soaking area, a cleaning area and an air-drying area in sequence from left to right. A water inlet pipe (2) is fixedly installed at the inlet of the soaking area, a drainage pipe (3) is fixed through the end of the soaking area, and a material conveyor belt (4) is provided inside the soaking area. The top of the material conveyor belt (4) extends to the inside of the cleaning area. A cleaning assembly (5) is provided inside the cleaning area of the cleaning box (1); a turning assembly (6) is provided at the unloading end of the cleaning assembly (5); a unloading conveyor belt (8) that moves in the opposite direction to the starting conveyor belt (4) is provided at the unloading end of the turning assembly (6); and a wind knife assembly (7) is provided on the top surface of the turning assembly (6) and the unloading conveyor belt (8) in the air-drying area of the cleaning box (1); A cleaning component (5) is capable of alternately wiping the upper and lower surfaces of frozen lychee bags of different thicknesses; A turning assembly (6) is used to turn over the frozen lychee bag; The wind knife assembly (7) can dry the frozen lychee bag before and after turning it over.

2. The cleaning device for vacuum packaging bags of fresh lychees after freezing after soaking according to claim 1, characterized in that: The flip assembly (6) comprises a flip conveyor belt (61) and an adsorption portion (62). The flip conveyor belt (61) is installed inside the cleaning box (1) at the unloading end of the starting conveyor belt (4). The flip conveyor belt (61) is J-shaped and placed horizontally. The adsorption portion (62) is provided inside the curved section of the flip conveyor belt (61) for adsorbing and fixing the packaging bag on the flip conveyor belt (61) at the curved section.

3. The cleaning device for vacuum packaging bags of fresh lychees after freezing and soaking according to claim 2, characterized in that: The cleaning assembly (5) comprises a fixed scraper (51), a movable scraper (52) and a driving transmission belt (53); a liftable support frame (54) is provided above the top of the material conveyor belt (4); a lifting screw (55) is rotatably connected to the top surface of the support frame (54); the lifting screw (55) is threadedly sleeved on the top of the cleaning box (1); a detachable fixed scraper (51) is fixed inside the support frame (54); a driving transmission belt (53) is installed inside the support frame (54); a driving part (56) is provided on both sides of the support frame (54); a detachable movable scraper (52) is fixed inside the cleaning box (1) between the material conveyor belt (4) and the flipping conveyor belt (61).

4. The cleaning device for vacuum packaging bags of fresh lychees after freezing and soaking according to claim 3, characterized in that: The adsorption portion (62) comprises a panel (621), an air guide pipe (622), an air supply pipe (623) and a fan (624); the panel (621) is sleeved inside the curved section of the flip conveyor belt (61); both ends of the panel (621) are fixed on the inner wall of the cleaning box (1); a plurality of air guide pipes (622) are fixed through one end of the panel (621) at equal intervals; one end of the air guide pipe (622) extending to the outside of the cleaning box (1) is fixed through the air supply pipe (623); one end of the air supply pipe (623) is fixed through the air inlet end of the fan (624); and the fan (624) is fixedly mounted on the cleaning box (1).

5. The cleaning device for vacuum packaging bags of fresh lychees after freezing and soaking according to claim 4, characterized in that: The wind knife assembly (7) includes a control air duct (71), an air hood 1 (72), an air hood 2 (73) and a swinging part (76). The wind hood 1 (72) and the wind hood 2 (73) are arranged vertically above the flip conveyor belt (61) and the unloading conveyor belt (8). The wind hood 1 (72) and the wind hood 2 (73) are fixed through the top of the wind hood 1 (72) and the wind hood 2 (73). The wind hood 2 (73) is fixed through the top of the wind hood 2 (73). The side of the wind hood 1 (72) and the wind hood 2 (73) is provided with a swinging part (76) for controlling the swing of the wind hood 1 (72) and the wind hood 2 (73). The two corrugated air ducts (74) in each group are fixed through the air outlet pipe (75). The other ends of the two air outlet pipes (75) are fixed through the air outlet end of the fan (624).

6. The cleaning device for vacuum packaging bags of fresh lychees after freezing after dipping according to claim 5, characterized in that: The swinging part (76) further comprises a connecting rod (761), a rotating rod (762), a swinging plate (764) and a bevel gear (767). The side walls of each group of two control air ducts (71) are fixed with a connecting rod (761). Each connecting rod (761) is fixed on a rotating rod (762). Each connecting rod (761) is rotatably sleeved inside a top plate (763). The top plate (763) is fixed on the top surface of the cleaning box (1). The other end of the rotating rod (762) is rotatably connected to a swing plate (764), each swing plate (764) is provided with a slide groove (765), each slide groove (765) is slidably sleeved with a driving rod (766), one end of each driving rod (766) is fixed on a bevel gear (767), and each bevel gear (767) is rotatably connected to the top plate (763), and each group of two bevel gears (767) are perpendicular to each other and meshingly connected.

7. The cleaning device for vacuum packaging bags of fresh lychees after freezing after soaking according to claim 3, characterized in that: The driving part (56) includes gear 1 (561), gear 2 (562), a fixed pulley (563), an adjusting belt (565) and a movable pulley (566). Both ends of the internal transmission roller on one side of the material conveyor belt (4) extend to the outside of the cleaning box (1) and are fixed with gear 1 (561). The side of the gear 1 (561) is meshed and connected with gear 2 (562). The gear 2 (562) is rotatably connected to the cleaning box (1). A support plate (564) is fixed to the top surface of the cleaning box (1) above the gear 1 (561). A fixed pulley (563) is fixed to the side of the gear 1 (561). The side of the support plate (564) is rotatably connected with another fixed pulley (563). The two The fixed pulley (563) is rotated and connected to the drive through the adjusting belt (565). Both ends of the internal transmission roller on one side of the driving transmission belt (53) extend to the outside of the cleaning box (1) and are fixed with a movable pulley (566). The movable pulley (566) is wound around the side of the adjusting belt (565). The adjusting belts (565) on both sides of the movable pulley (566) are wound around the tension wheel (568). The tension wheel (568) is rotatably connected to the wheel plate (567). Each of the wheel plates (567) is slidably connected to the side wall of the cleaning box (1). The side of the gear 2 (562) is fixed to the output end of the driving motor (569). The driving motor (569) is fixedly installed on the cleaning box (1).

8. The cleaning device for vacuum packaging bags of fresh lychees after freezing and soaking according to claim 7, characterized in that: A rotating shaft (768) is fixed to the bevel gear (767) horizontal to the movable pulley (566), and one end of the rotating shaft (768) extending to the outside of the cleaning box (1) is connected to the fixed pulley (563) through a belt and a pulley, and the upper and lower bevel gears (767) are connected through another set of belts and pulleys. The unloading conveyor belt (8) is connected to the fixed pulley (563) through a belt and a pulley, and the flip assembly (6) belt and pulley are connected to the starting conveyor belt (4).

9. The cleaning device for vacuum packaging bags of fresh lychees after freezing and soaking according to claim 1, characterized in that: The material conveyor belt (4) is configured in a Z-shape for conveying frozen lychee bags. An inspection plate (9) is installed inside the cleaning box (1) above the material conveyor belt (4). One end of the inspection plate (9) is rotatably connected to the cleaning box (1) via a hinge, and the other end is detachably fixed to the top surface of the cleaning box (1) via a fixing piece.

10. A method for cleaning vacuum packaging bags for fresh lychees after being immersed in frozen food, using the cleaning device for vacuum packaging bags for fresh lychees after being immersed in frozen food according to claim 8, characterized in that: The cleaning method comprises the following steps: S1: cold water is filled into the soaking area through the water inlet pipe (2), and the frozen lychee bag is placed in the soaking area inside the cleaning box (1) to soak, so that the freezing liquid dissolves in the water. During the soaking, the drain pipe (3) continuously drains the old water in the soaking area. The soaked frozen lychee bag is transported to the cleaning component (5) through the material conveyor belt (4); S2: Under the conveyance of the material conveyor belt (4), the top surface of the frozen lychee bag arriving at the cleaning assembly (5) is first wiped by the movable scraper (52), and then pushed and conveyed by the driving conveyor belt (53), driving the frozen lychee bag to pass through the fixed scraper (51), and the bottom surface of the frozen lychee bag is wiped by the fixed scraper (51); S3: After the preliminary wiping is completed, the frozen lychee bag enters the flip conveyor (61) under the drive of the driving conveyor (53), and the wind hood 1 (72) and the wind hood 2 (73) on the top of the flip conveyor (61) swing in two directions to blow and scrape the top surface of the frozen lychee bag. After the top surface of the frozen lychee bag is air-dried, the frozen lychee bag moves to the position of the enclosure (621) under the drive of the flip conveyor (61). Under the negative pressure adsorption inside the enclosure (621), the frozen lychee bag is attached to the flip conveyor (61) and moved to the top surface of the unloading conveyor (8); S4: The frozen lychee bag that reaches the top of the unloading conveyor belt (8) loses its adsorption force and falls on the top surface of the unloading conveyor belt (8). Driven by the unloading conveyor belt (8), it passes through another set of air knife components (7). The other set of air knife components (7) blows and scrapes the top surface of the turned frozen lychee bag, so that both sides of the frozen lychee bag are air-dried, and finally discharged from the unloading conveyor belt (8).

Images