CN113398291B - Cold chain disinfection and sterilization transmission system and use method - Google Patents

Abstract

The invention discloses a cold chain sterilization and transmission system and a using method thereof, and the cold chain sterilization and transmission system comprises a plurality of transmission lines and a controller, wherein the first transmission line comprises a feeding section and a distributing section, the transmission speed of the distributing section is greater than that of the feeding section, the tail end of the distributing section is provided with a first moving mechanism, the second transmission line is vertical to the distributing section, and the second transmission line is provided with a first irradiator, a second irradiator, an upper irradiator and a lower irradiator and is used for sterilizing two opposite side surfaces, the top surface and the bottom surface of a cold chain packing box; the automatic six-face sterilization treatment device automatically realizes six-face sterilization treatment on the cold-chain packing box, has obvious treatment effect and saves manpower, only plays a role in external packing in the irradiation sterilization process, and cannot influence articles in the packing.

Description

Cold chain disinfection and sterilization transmission system and use method

Technical Field

The invention relates to the technical field of conveying, in particular to a cold chain disinfection and sterilization transmission system and a using method thereof.

Background

At present, cold chain food and outer packages are disinfected at normal temperature or even at high temperature, and the low-temperature imported cold chain food is disinfected at low temperature because the low temperature affects the disinfection effect, sometimes the low temperature can cause disinfectants, and some disinfection methods have obviously reduced disinfection effect, sometimes even can completely fail the common disinfection method, so equipment capable of disinfecting at low temperature and safely and effectively disinfecting the surface of food packages is needed under the condition.

The traditional disinfection scene of cold chain boxing equipment mainly has the following characteristics:

(1) the working strength of the equipment is high, and the machine body needs to be firm and corrosion resistant. The weight of the cold chain packing boxes is 30-50kg, calculated according to 8 hours and 100 tons of disinfection amount, the equipment needs to receive continuous loading of 5000 cold chain packing boxes, and the cold chain packing boxes are usually thrown to the equipment by a carrier due to high labor intensity in the period, so that the load of the equipment is increased invisibly.

(2) Cold chain packing box is import usually, and the centre is through multichannel transfer flow, and through erodeing or moist in disinfection process, can cause a lot of impurity to drop.

(3) The surface of the cold chain packaging box is easy to frost, and the effect of the disinfectant is influenced.

The radiation (or radiation) sterilization of food is an operation process that food is sterilized (including raw materials) by using a certain dose of ionizing radiation with extremely short wavelength to delay the development of certain physiological processes (germination and maturation) of fresh food, or the food is treated by insect killing, disinfection, sterilization, mildew prevention and the like to achieve the purposes of prolonging the preservation time, stabilizing and improving the food quality, and is particularly suitable for the surface sterilization treatment of the food.

Therefore, how to provide a cold chain sterilization and delivery system is a problem that needs to be solved by those skilled in the art.

Disclosure of Invention

The invention provides a cold chain disinfection and sterilization transmission system and a use method thereof, and aims to solve the technical problems in the prior art to a certain extent.

In order to achieve the purpose, the invention adopts the following technical scheme:

a cold chain disinfection and sterilization transmission system comprises a plurality of transmission lines and a controller, wherein the plurality of transmission lines are all connected with the controller, and the plurality of transmission lines comprise:

the first conveying line comprises a feeding section and a distributing section, the conveying speed of the distributing section is higher than that of the feeding section, and a first moving mechanism is arranged at the tail end of the distributing section and used for switching the conveying direction of the cold chain packing box;

the second conveying line is perpendicular to the material distribution section, the starting end of the second conveying line corresponds to the traveling mechanism, a first deviation mechanism which enables the cold chain packing box to approach to the other side is arranged in the middle of the second conveying line, a first irradiator and an upper irradiator are arranged at one end of the first deviation mechanism, a second irradiator and a lower irradiator are arranged at the other end of the first deviation mechanism, the first irradiator and the second irradiator are respectively located on two sides of the second conveying line and used for disinfecting two opposite side faces of the cold chain packing box, and the upper irradiator and the lower irradiator are located right above and below the second conveying line and used for disinfecting the top face and the bottom face of the cold chain packing box;

the second moving mechanism is arranged at the tail end of the second conveying line and used for switching the conveying direction of the cold chain packing boxes;

the starting end of the third conveying line is vertically connected with the tail end of the second conveying line and corresponds to the second moving mechanism; and a second deviation mechanism is arranged in the third conveying line, a third irradiator and a fourth irradiator are respectively arranged at two ends of the second deviation mechanism, and the third irradiator and the fourth irradiator are respectively positioned at two sides of the third conveying line.

According to the technical scheme, compared with the prior art, six surfaces of the cold chain packaging box are automatically sterilized, the treatment effect is obvious, manpower is saved, only the external packaging is acted in the irradiation sterilization process, and the objects in the packaging are not influenced.

Furthermore, the first conveying line, the second conveying line and the third conveying line respectively comprise a conveying rack, conveying rollers and a motor, the conveying rollers are installed on the conveying rack in an equidistant mode, the conveying rollers are linked through chains and chain wheels, the motor is electrically connected with the controller, and a rotating shaft of the motor is fixedly connected with any one of the conveying rollers.

Further, still include belt conveyor, belt conveyor includes conveyer belt and motor, the one end of conveyer belt with the end of the conveyer frame of third transfer chain is connected perpendicularly.

Furthermore, the first offset mechanism is the same as the second offset mechanism and comprises a driving motor and a plurality of inclined rollers which are arranged at equal intervals, and the driving motor is electrically connected with the controller.

Further, the conveying rollers in the feeding section are driven by a first motor, the conveying rollers in the material distribution section are driven by a second motor, and the rotating speed of the second motor is greater than that of the first motor.

Furthermore, the first moving mechanism and the second moving mechanism have the same structure and respectively comprise a servo motor, a moving machine frame, a driving chain wheel, a driven chain wheel, a chain, a push head positioning switch and a workpiece in-place detection switch;

the machine frame of the moving machine comprises a driving chain wheel shaft and a driven chain wheel shaft which are parallel to the first conveying line, the driving chain wheel shaft and the driven chain wheel shaft are respectively fixed on the conveying frame, the servo motor is electrically connected with the controller, a driving shaft of the servo motor is fixedly connected with the driving chain wheel shaft, and the driving chain wheels are in one-to-one correspondence with the driven chain wheels and are in transmission connection through chains; the chain sets up adjacent two between the conveying roller, the equipartition has two to push away the head on the chain, work piece detection switch that targets in place sets up divide the terminal tip of material section, and with the controller electricity is connected, push away first positioning switch setting is in driven sprocket's the outside, and with the controller electricity is connected for make another push away the head and stop in driven sprocket department after pushing away the cold chain packing box.

Furthermore, the number of the driving chain wheels and the number of the driven connections are three, the pushing head positioning switches are arranged between every two adjacent driven chain wheels, and the two pushing positioning switches are electrically connected with the controller.

Further, the pushing head is of a cylindrical structure.

Furthermore, the first traveling mechanism further comprises a chain tensioning device, the chain tensioning device comprises a fixed seat, a bearing, a screw rod, a guide sleeve and an adjusting nut, the fixed seat is fixedly installed on the conveying rack, the driven sprocket shaft is rotatably installed in the middle of the fixed seat, the two bearings are slidably connected onto the two side walls of the fixed seat, the two ends of the driven sprocket shaft are respectively arranged in the two bearings, the guide sleeve is fixedly connected to the front end of the side wall of the fixed seat, the screw rod is horizontally arranged in the guide sleeve in a penetrating mode, one end of the screw rod is connected with the bearing, the other end of the screw rod is in threaded connection with the adjusting nut, and the adjusting nut is located on the outer side of the guide sleeve and is abutted to the guide sleeve.

Furthermore, a plurality of guide wheels capable of rotating are uniformly arranged on two sides of the conveying rack of each conveying line, and two layers of guide wheels are arranged and are in rolling contact with the side faces of the cold chain packing boxes.

A use method of a cold chain disinfection and sterilization transmission system adopts the cold chain disinfection and sterilization transmission system and comprises the following steps:

(1) The cold chain packing boxes are horizontally placed on the conveying rollers of the feeding section, the cold chain packing boxes enter the conveying rollers of the material distribution section from the conveying rollers of the feeding section under the driving of the first motor, and the cold chain packing boxes entering the material distribution section are separated from the following cold chain packing boxes because the rotating speed of the second motor is greater than that of the first motor, so that the first moving mechanism can conveniently process the cold chain packing boxes one by one;

(2) The cold chain packing box enters the tail end of the material distribution section, a detection switch of the first traveling mechanism sends a signal, a pushing head pushes the cold chain packing box to enter a second conveying line, the cold chain packing box is driven by a conveying roller to complete left side surface disinfection through a first irradiator, and then the cold chain packing box runs through an upper irradiator to complete disinfection on the top surface;

(3) The cold chain packing box is deviated to the other side through the inclined roller, the inclination angle of the inclined roller is determined according to the size of the cold chain packing box, then the bottom surface sterilization is finished through the lower irradiator under the driving of the conveying roller, and the right side surface sterilization is finished through the second irradiator;

(4) The cold chain packing box enters the tail end of the second conveying line, a detection switch of the second traveling mechanism sends a signal, the pushing head pushes the cold chain packing box to enter a third conveying line, and the front part is disinfected through a third irradiator;

(5) The cold chain packing box is deflected to the other side through an inclined roller of the third conveying line, and the sterilization is finished under the action of a fourth irradiator;

(6) And the cold chain packing boxes which are sterilized in six directions drop onto the conveying belt of the belt conveying mechanism from the tail end of the third conveying line, and are loaded and conveyed away.

The invention has convenient operation, saves manpower, automatically finishes six-side sterilization treatment on the packing box only by placing the cold chain packing box on the feeding conveying roller, has obvious sterilization effect, can not damage the packing box and articles in the box, and greatly improves the working efficiency and the sterilization effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the first traveling mechanism according to the present invention.

Fig. 3 is a schematic view of the structure of the chain tensioner of the present invention.

Fig. 4 is a schematic structural view of the guide wheel of the present invention.

Wherein:

1-a first conveyor line; 2-a second conveyor line; 3-a third conveyor line; 4-a belt conveying mechanism; 5-chain tensioning device; 6-a guide wheel; 11-a first traverse mechanism; 12-a first electric machine; 13-a second electric machine; 21-a first biasing mechanism; 22-a second traverse mechanism; 31-a second biasing mechanism; 101-a first irradiator; 102-a second irradiator; 103-a third irradiator; 104-a fourth illuminator; 201-upper irradiator; 202-lower irradiator; 111-a servo motor; 112-a drive sprocket; 113-a chain; 114-a push head; 115-a push positioning switch; 116-workpiece in-position detection switch; 117 — driven sprocket shaft; 51-a fixed seat; 52-a bearing; 53-screw rod; 54-guide sleeve; 55-adjusting the nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The embodiment of the invention discloses a cold chain disinfection and sterilization transmission system, which comprises a plurality of transmission lines and a controller, wherein the controller adopts a PLC system and a touch screen, and a filter is added in a PLC power supply system for increasing the stability of the system; the multiple conveying lines are connected with the controller and comprise a first conveying line 1, a second conveying line 2, a third conveying line 3 and a belt conveying mechanism 4 which are vertically connected;

first transfer chain 1, second transfer chain 2 and third transfer chain 3 all include conveyor frame, conveying roller and motor, and the equidistant rotation of many conveying rollers is installed in conveyor frame, through chain and sprocket linkage between the conveying roller, and the motor is connected with the controller electricity, the pivot of motor and arbitrary conveying roller fixed connection wherein.

Wherein, the first and the second end of the pipe are connected with each other,

the first conveying line 1 comprises a feeding section and a distributing section, conveying rollers in the feeding section are driven by a first motor 12, conveying rollers in the distributing section are driven by a second motor 13, and the tail end of the distributing section is provided with a first moving mechanism 11 which is used for switching the conveying direction of the cold chain packing box and is vertical to the previous direction; the rotating speed of the second motor 13 is set to be greater than that of the first motor 12, so that the transmission speed of the material distribution section is greater than that of the material loading section, and the cold chain packing boxes entering the material distribution section are separated from the following cold chain packing boxes by a certain distance, so that the first moving mechanism 11 can process the cold chain packing boxes one by one conveniently;

the second conveying line 2 is perpendicular to the material distribution section, the starting end of the second conveying line corresponds to the first moving mechanism, the middle of the second conveying line 2 is provided with a first deviation mechanism 21 which enables the cold chain packing box to approach to the other side, one end of the first deviation mechanism 21 is provided with a first irradiator 101 and an upper irradiator 201, the other end of the first deviation mechanism 21 is provided with a second irradiator 102 and a lower irradiator 202, the first irradiator 101 and the second irradiator 102 are respectively located on two sides of the second conveying line 2 and used for disinfecting two opposite side faces of the cold chain packing box, the upper irradiator 201 and the lower irradiator 202 are located right above and right below the second conveying line 2 and used for disinfecting the top face and the bottom face of the cold chain packing box, and the second moving mechanism 22 is arranged at the tail end of the second conveying line 2 and used for switching the conveying direction of the cold chain packing box so that the conveying direction after entering the third conveying line 3 is perpendicular to the previous conveying direction;

the starting end of the third conveying line 3 is vertically connected with the tail end of the second conveying line 2 and corresponds to the second moving mechanism 22; a second deviation mechanism 31 is arranged in the third conveying line 3, a third irradiator 103 and a fourth irradiator 104 are respectively arranged at two ends of the second deviation mechanism 31, and the third irradiator 103 and the fourth irradiator 104 are respectively positioned at two sides of the third conveying line 3;

the belt conveying mechanism 4 comprises a conveying belt and a motor, and one end of the conveying belt is vertically connected with the tail end of the conveying rack of the third conveying line 3.

In one embodiment, the first shifting mechanism 21 is the same as the second shifting mechanism 31 and includes a driving motor and a plurality of equally spaced tilt rollers, and the driving motor is electrically connected to the controller.

In a specific embodiment, the first traveling mechanism 11 and the second traveling mechanism 22 are identical in structure and each include a servo motor 111, a frame of the traveling machine, a driving sprocket 112, a driven sprocket, a chain 113, a pushing head 114, a pushing head positioning switch 115 and a workpiece in-position detection switch 116;

the machine frame of the transfer machine comprises a driving chain wheel shaft and a driven chain wheel shaft 117 which are parallel to the first conveying line 1, the driving chain wheel shaft and the driven chain wheel shaft 117 are respectively fixed on the machine frame, the servo motor 111 is electrically connected with the controller, a driving shaft of the servo motor is fixedly connected with the driving chain wheel shaft, and the driving chain wheels 112 correspond to the driven chain wheels one by one and are in transmission connection through a chain 113; the chain 113 is arranged between two adjacent conveying rollers, two pushing heads 114 are uniformly distributed on the chain 113, the workpiece in-place detection switch 116 is arranged at the end part of the tail end of the material distribution section and is electrically connected with the controller, and the pushing head positioning switch 115 is arranged on the outer side of the driven chain wheel and is electrically connected with the controller and used for stopping the other pushing head 114 at the driven chain wheel after the cold chain packing box is pushed away.

In order to further optimize the technical scheme, the driving chain wheels 112 and the driven chain wheels are provided with three pushing heads 114, so that the cold chain packing boxes are pushed by the three pushing heads 114, the cold chain packing boxes are adaptive to packing boxes with different sizes, the situation that the packing boxes are inclined in the pushing process is avoided, the pushing head positioning switches 115 are arranged between every two adjacent driven chain wheels, the two pushing positioning switches 115 are electrically connected with the controller, and synchronous starting is achieved.

Preferably, the pushing head 114 is a cylinder structure, and a cylindrical surface acts on the packing box, and the contact surface is smooth and has no edges and corners, so that the packing box is not damaged.

Preferably, because the conventional photoelectric switch is influenced by the irradiation environment, the service life is shortened, the positioning switch 115 is pushed to select a magnetic control switch, the permanent magnet is arranged outside the push head 114, and the reed switch is arranged outside the driven chain wheel. When the push head 114 pushes a packing box, the chain rotates for half a turn, the next push head 114 moves to the driven chain wheel, the permanent magnet on the push head 114 corresponds to the reed pipe, so that the reed pipe sends a signal to the controller, and the controller stops the operation of the servo motor 111.

In order to further optimize the technical scheme, the first traveling mechanism 11 further comprises a chain tensioning device 5, the chain tensioning device 5 comprises a fixed seat 51, bearings 52, a screw 53, a guide sleeve 54 and an adjusting nut 55, the fixed seat 51 is fixedly installed on the conveying rack, a driven sprocket shaft 117 is arranged in the middle of the fixed seat 51, three driven sprockets are uniformly arranged on the driven sprocket shaft 117, sliding grooves are formed in two sides of the fixed seat 51, the two bearings 52 are symmetrically arranged and can be slidably installed on two side walls of the fixed seat 51, and two ends of the driven sprocket shaft 117 are respectively arranged in the two bearings 52; the guide sleeve 54 is fixedly connected to the front end of the side wall of the fixed seat 51, the screw 53 horizontally penetrates through the guide sleeve 54, one end of the screw is connected with the bearing 52, the other end of the screw is in threaded connection with the adjusting nut 55, and the adjusting nut 55 is located on the outer side of the guide sleeve 54 and is abutted to the guide sleeve 54; the screw 53 is extended or retracted by rotating the adjusting nut 55, so that the bearing 52 moves back and forth on the fixed seat 51, the driven sprocket shaft 117 is driven to move, and the chain 113 is pre-tightened.

Advantageously, in the system, the electric detection element and the motor are both arranged on the outer side of the conveying frame, so that the influence of the irradiator is avoided.

In order to further optimize the technical scheme, a plurality of guide wheels 6 capable of rotating are uniformly arranged on two sides of the conveying rack of each conveying line, and two layers of the guide wheels 6 are in rolling contact with the side surfaces of the cold chain packing boxes.

A method of using a cold chain sterilization transport system comprising the steps of:

(1) The cold chain packing boxes are horizontally placed on the conveying rollers of the feeding section, the cold chain packing boxes are driven by the first motor to enter the conveying rollers of the material distribution section from the conveying rollers in the feeding section, and because the rotating speed of the second motor is greater than that of the first motor, the cold chain packing boxes entering the material distribution section are separated from the following cold chain packing boxes, so that the first traveling mechanism can conveniently process the cold chain packing boxes one by one;

(2) The cold chain packing box enters the tail end of the material distribution section, a workpiece in-place detection switch of the first traveling mechanism sends a signal, the push head pushes the cold chain packing box to enter a second conveying line, the cold chain packing box (with the conveying direction of the second conveying line as the front part) is driven by the conveying roller to finish the left side surface disinfection through the first irradiator, and then the cold chain packing box runs through the upper irradiator to finish the disinfection of the top surface;

(3) The cold chain packing box is deflected to the other side through the inclined roller of the first deflection mechanism, the inclination angle of the inclined roller is determined according to the size of the cold chain packing box, then the bottom surface sterilization is finished through the lower irradiator under the driving of the conveying roller, and the right side surface sterilization is finished through the second irradiator;

(4) The cold chain packing box enters the tail end of the second conveying line, a workpiece in-place detection switch of the second traveling mechanism sends a signal, the pushing head pushes the cold chain packing box to enter a third conveying line, and the cold chain packing box is disinfected in the front through a third irradiator;

(5) The cold chain packing box is shifted to the other side through the inclined roller of the second shifting mechanism, and the sterilization at the back is finished under the action of a fourth irradiator;

(6) And the cold chain packing boxes which are sterilized in six sides fall onto the conveying belt of the belt conveying mechanism from the tail end of the third conveying line, and are loaded and conveyed away.

The invention uses PLC as the direct control level of the control system, the touch screen is used as a human-computer interaction interface, and the parameters such as irradiation speed, horizontal pushing speed of the moving machine and the like are set, so that six-side sterilization treatment of the cold chain packing box is automatically realized, the treatment effect is obvious, manpower is saved, only the external packing is acted in the irradiation sterilization process, the influence on articles in the packing is avoided, and when some equipment has a fault, an instruction can be sent through the PLC, so that the transmission system is immediately stopped.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed in the embodiment corresponds to the method disclosed in the embodiment, so that the description is simple, and the relevant points can be referred to the description of the method part.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. A cold chain disinfection and sterilization transmission system comprises a plurality of transmission lines and a controller, wherein the plurality of transmission lines are connected with the controller, and the cold chain disinfection and sterilization transmission system is characterized in that the plurality of transmission lines comprise:

the conveying device comprises a first conveying line (1), wherein the first conveying line (1) comprises a feeding section and a distributing section, the conveying speed of the distributing section is higher than that of the feeding section, and a first moving mechanism (11) is arranged at the tail end of the distributing section and used for switching the conveying direction of the cold chain packing box;

the second conveying line (2) is perpendicular to the material distribution section, the starting end of the second conveying line (2) corresponds to the first moving mechanism, a first deviation mechanism (21) which enables the cold chain packing box to be close to the other side from one side is arranged in the middle of the second conveying line (2), one end of the first deviation mechanism (21) is provided with a first irradiator (101) and an upper irradiator (201), the other end of the first deviation mechanism is provided with a second irradiator (102) and a lower irradiator (202), the first irradiator (101) and the second irradiator (102) are respectively located on two sides of the second conveying line (2) and used for disinfecting two opposite side faces of the cold chain packing box, and the upper irradiator (201) and the lower irradiator (202) are located right above and right below the second conveying line (2) and used for disinfecting the top face and the bottom face of the cold chain packing box; the second moving mechanism (22) is arranged at the tail end of the second conveying line (2) and used for switching the conveying direction of the cold chain packing boxes;

the starting end of the third conveying line (3) is vertically connected with the tail end of the second conveying line (2) and corresponds to the second moving mechanism (22); a second deviation mechanism (31) is arranged in the third conveying line (3), a third irradiator (103) and a fourth irradiator (104) are respectively arranged at two ends of the second deviation mechanism (31), and the third irradiator (103) and the fourth irradiator (104) are respectively positioned at two sides of the third conveying line (3);

the first deviation mechanism (21) is the same as the second deviation mechanism (31), and comprises a driving motor and a plurality of inclined rollers which are arranged at equal intervals, and the driving motor is electrically connected with the controller;

the first moving mechanism (11) and the second moving mechanism (22) are identical in structure and respectively comprise a servo motor (111), a moving machine frame, a driving chain wheel (112), a driven chain wheel, a chain (113), a push head (114), a push head positioning switch (115) and a workpiece in-place detection switch (116);

the machine frame of the moving machine comprises a driving chain wheel shaft and a driven chain wheel shaft (117) which are parallel to the first conveying line (1), the driving chain wheel shaft and the driven chain wheel shaft (117) are respectively fixed on the conveying frame, the servo motor (111) is electrically connected with the controller, a driving shaft of the servo motor is fixedly connected with the driving chain wheel shaft, and the driving chain wheels (112) are in one-to-one correspondence with the driven chain wheels and are in transmission connection through chains (113); a reed switch is arranged on the outer side of the driven chain wheel; the chain (113) is arranged between two adjacent conveying rollers, two pushing heads (114) are uniformly distributed on the chain (113), a permanent magnet is installed on the outer side of each pushing head (114), each pushing head (114) is of a cylindrical structure, the workpiece in-place detection switch (116) is a magnetic control switch, is arranged at the end part of the tail end of the material distribution section and is electrically connected with the controller, and the pushing head positioning switch (115) is arranged on the outer side of the driven chain wheel and is electrically connected with the controller and used for stopping the other pushing head (114) at the driven chain wheel after the cold chain packing box is pushed away;

the driving chain wheels (112) and the driven chain wheels are all provided with three, the push head positioning switches (115) are arranged between every two adjacent driven chain wheels, and the two push head positioning switches (115) are all electrically connected with the controller.

2. The cold chain sterilization and disinfection conveying system according to claim 1, wherein each of the first conveying line (1), the second conveying line (2) and the third conveying line (3) comprises a conveying frame, a plurality of conveying rollers and a motor, the plurality of conveying rollers are mounted on the conveying frame in an equidistant rotating manner, the conveying rollers are linked through chains and chain wheels, the motor is electrically connected with the controller, and a rotating shaft of the motor is fixedly connected with any one of the conveying rollers.

3. The cold chain sterilization and transfer system of claim 1, further comprising a belt conveyor (4), wherein the belt conveyor (4) comprises a conveyor belt and a motor, and one end of the conveyor belt is vertically connected with the end of the conveyor frame of the third conveyor line (3).

4. A cold chain sterilization conveyor system according to claim 1, wherein the conveyor rolls in the feeding section are driven by a first motor (12), and the conveyor rolls in the distribution section are driven by a second motor (13), the second motor (13) having a higher rotational speed than the first motor (12).

5. The cold chain disinfection and sterilization conveying system according to claim 1, wherein the first traveling mechanism (11) further comprises a chain tensioner (5), the chain tensioner (5) comprises a fixed seat (51), bearings (52), a screw (53), a guide sleeve (54) and an adjusting nut (55), the fixed seat (51) is fixedly mounted on the conveyor frame, the driven sprocket shaft (117) is rotatably mounted in the middle of the fixed seat (51), the two bearings (52) are slidably connected to two side walls of the fixed seat (51), two ends of the driven sprocket shaft (117) are respectively arranged in the two bearings (52), the guide sleeve (54) is fixedly connected to the front end of the side wall of the fixed seat (51), the screw (53) is horizontally inserted into the guide sleeve (54), one end of the screw is connected to the bearing (52), the other end of the screw is in threaded connection with the adjusting nut (55), and the adjusting nut (55) is located outside the guide sleeve (54) and abuts against the guide sleeve (54).

6. The cold chain sterilization and transmission system according to claim 1, wherein a plurality of guide wheels (6) capable of rotating are arranged on two sides of the conveyor frame of each conveyor line, and two layers of the guide wheels (6) are in rolling contact with the side surfaces of the cold chain packaging boxes.

7. A method of using a cold chain sterilization transport system, using a cold chain sterilization transport system as claimed in any of claims 1-6, comprising the steps of:

(1) The cold chain packing boxes are horizontally placed on the conveying rollers of the feeding section, the cold chain packing boxes are driven by the first motor to enter the conveying rollers of the material distribution section from the conveying rollers in the feeding section, and because the rotating speed of the second motor is greater than that of the first motor, the cold chain packing boxes entering the material distribution section are separated from the following cold chain packing boxes, so that the first traveling mechanism can conveniently process the cold chain packing boxes one by one;

(2) The cold chain packing box enters the tail end of the material distribution section, a detection switch of the first traveling mechanism sends a signal, a pushing head pushes the cold chain packing box to enter a second conveying line, the cold chain packing box is driven by a conveying roller to finish the left side surface disinfection through a first irradiator, and then the cold chain packing box runs through an upper irradiator to finish the top surface disinfection;

(3) The cold chain packing box is deviated to the other side through the inclined roller, the inclination angle of the inclined roller is determined according to the size of the cold chain packing box, then the bottom surface sterilization is finished through the lower irradiator under the driving of the conveying roller, and the right side surface sterilization is finished through the second irradiator;

(4) The cold chain packing box enters the tail end of the second conveying line, a detection switch of the second traveling mechanism sends a signal, the pushing head pushes the cold chain packing box to enter a third conveying line, and the cold chain packing box is disinfected in the front through a third irradiator;

(5) The cold chain packing box is deflected to the other side through an inclined roller of a third conveying line, and the sterilization is finished under the action of a fourth irradiator;

(6) And the cold chain packing boxes which are sterilized in six directions drop onto the conveying belt of the belt conveying mechanism from the tail end of the third conveying line, and are loaded and conveyed away.

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