Cargo batch disinfection device and control method

Abstract

The application discloses a kind of goods batch disinfection device, it is related to disinfection equipment field, especially a kind of goods batch disinfection device and control method;It includes: conveyor belt, irradiation disinfection bin, goods arrangement mechanism, sensor group and controller;Irradiation disinfection bin is built-in irradiation equipment, and irradiation equipment is used to disinfect goods;Conveyor belt is used to convey goods, and transmission belt passes through irradiation disinfection bin;Sensor group is used to measure goods;Controller is separately connected with sensor group, goods arrangement mechanism and irradiation equipment, for calculating the volume information of each goods according to the measurement signal fed back by sensor group, and according to the volume information of each goods, control goods arrangement mechanism arranges goods;Not only realize the rapid batch irradiation of multiple small goods, and by arranging goods into disinfection array, can effectively shorten the total length of radiation disinfection, substantially save resources and effectively reduce pollution to environment.

Description

Technical Field

[0001] This invention relates to the field of disinfection equipment, and in particular to a bulk disinfection device and control method for goods. Background Technology

[0002] Currently, there are many types of disinfection equipment, but both existing chemical disinfection devices and electron beam irradiation disinfection devices are mainly used for disinfecting large, uniformly sealed goods, and are not suitable for the batch processing of small packages. Chemical disinfection can only disinfect the surface of the package; although irradiation disinfection can also disinfect the inside of the package, it poses a high risk of environmental pollution, and continuous operation will seriously consume raw materials and electricity, and frequent operation is also detrimental to the lifespan of the equipment. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a bulk disinfection device and control method for goods.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] Therefore, according to one aspect of the present invention, a batch disinfection device for goods is provided, comprising: a conveyor belt, an irradiation disinfection chamber, a goods arrangement mechanism, a sensor group, and a controller; the irradiation disinfection chamber contains an irradiation device for disinfecting goods; the conveyor belt is used to transport goods, and the conveyor belt passes through the irradiation disinfection chamber; the sensor group is used to measure the goods; the controller is individually connected to the sensor group, the goods arrangement mechanism, and the irradiation device, and is used to calculate the volume information of each goods according to the measurement signals fed back by the sensor group, and to control the goods arrangement mechanism to arrange the goods according to the volume information of each goods, and to control the start and stop time of the irradiation device; wherein, the goods arrangement mechanism includes a stop baffle, a first push plate, and a second push plate; the stop baffle is vertically arranged above the conveyor belt and moves up and down reciprocating according to the control signal of the controller; the first push plate and the second push plate are respectively arranged on both sides of the conveyor belt and move back and forth towards the middle of the conveyor belt according to the control signal of the controller.

[0006] Specifically, the controller calculates the conveyor speed of the conveyor belt passing through the irradiation sterilization chamber based on the effective sterilization zone length and the preset sterilization time.

[0007] More specifically, the conveyor belt includes a first conveyor belt and a second conveyor belt; the first conveyor belt passes through the irradiation sterilization chamber; the exit end of the second conveyor belt is connected to the inlet end of the first conveyor belt; the sensor group and the cargo arrangement mechanism are both set on the second conveyor belt; and the stop baffle is set between the first conveyor belt and the second conveyor belt.

[0008] The sensor group is located at the inlet end of the conveyor belt. The sensor group includes a first distance sensor and a second distance sensor, which are respectively located on both sides of the conveyor belt and are positioned opposite each other. The controller calculates the length and width of the goods based on the measurement signals fed back by the first distance sensor and the second distance sensor.

[0009] Specifically, the sensor group includes a third distance sensor, which is positioned above the conveyor belt; the controller calculates the cargo height based on the measurement signal fed back by the third distance sensor.

[0010] More specifically, the controller simulates the arrangement of goods based on the volume information of each item and the corresponding acquisition order, and outputs corresponding control signals to the goods arrangement mechanism based on the simulated arrangement.

[0011] More specifically, the entrance to the irradiation sterilization chamber is also equipped with an infrared sensor for detecting goods.

[0012] According to another aspect of the present invention, a control method for a bulk cargo disinfection device is provided, applied to the aforementioned bulk cargo disinfection device, comprising the following steps:

[0013] The system identifies the volume information of the goods and generates a corresponding motion model based on the conveyor belt's speed. It controls the stop baffle to descend and simulates the arrangement of the identified goods to determine their position in the disinfection array, calculating the pusher drive information corresponding to the position information. It drives the first pusher and / or the second pusher based on the pusher drive information. It controls the stop baffle to rise, transferring the goods in the disinfection array to the irradiation disinfection chamber. It then starts the irradiation equipment to disinfect the goods in the disinfection array.

[0014] Specifically, the location information includes the distance between the side of the goods and one or both sides of the conveyor belt; the pusher drive information includes the pushing distance and the pushing time point; wherein, the pushing distance of the first pusher and / or the second pusher is calculated based on the corresponding location information; and the pushing time point of the goods passing the first pusher and / or the second pusher is calculated based on the corresponding motion model.

[0015] Another specific method involves judging based on the volume information of the goods, determining whether the bottom area of ​​the goods is greater than the set area threshold, and if so, disinfecting the goods separately; calculating the length of the disinfection array and determining whether the length of the disinfection array is greater than or equal to the set length threshold; if so, controlling the stop baffle to rise.

[0016] The beneficial effects of this invention are as follows: A batch disinfection device for goods includes: a conveyor belt, an irradiation disinfection chamber, a goods arrangement mechanism, a sensor group, and a controller; the irradiation disinfection chamber contains an irradiation device used to disinfect goods; the conveyor belt is used to transport goods, and the conveyor belt passes through the irradiation disinfection chamber; the sensor group is used to measure the goods; the controller is individually connected to the sensor group, the goods arrangement mechanism, and the irradiation disinfection chamber, and is used to calculate the volume information of each goods based on the measurement signals fed back by the sensor group, and control the goods arrangement mechanism to arrange the goods according to the volume information of each goods; it not only realizes rapid batch irradiation of multiple small goods, but also effectively shortens the total time of radiation disinfection by arranging the goods into a disinfection array, greatly saving resources and effectively reducing environmental pollution. Attached Figure Description

[0017] The invention can be better understood by describing exemplary embodiments disclosed herein in conjunction with the accompanying drawings, in which:

[0018] Figure 1 The diagram shown is a schematic block diagram of a bulk disinfection device for goods according to Embodiment 1 of the present invention.

[0019] Figure 2 The diagram shown is a schematic flowchart of a control method for a bulk disinfection device for goods according to Embodiment 1 of the present invention. Detailed Implementation

[0020] The following describes specific embodiments of the present invention. It should be noted that, in order to provide a concise description, this specification cannot exhaustively describe all features of the actual embodiments. It should be understood that, in the actual implementation of any embodiment, just as in any engineering or design project, various specific decisions are often made to achieve the developer's specific goals and to meet system-related or business-related constraints, and this can change from one embodiment to another. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this invention, some design, manufacturing, or production modifications based on the technical content disclosed in this invention are merely conventional technical means and should not be construed as insufficient content of this invention.

[0021] Unless otherwise defined, the technical or scientific terms used in the claims and description shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in the patent application description and claims of this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the element or object preceding "comprising" or "including" encompasses the element or object listed following "comprising" or "including" and its equivalents, and do not exclude other elements or objects. The terms "connected" or "linked" and similar terms are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.

[0022] Example 1

[0023] Please see Figure 1 This embodiment provides a bulk disinfection device for goods, including: a conveyor belt, an irradiation disinfection chamber, a goods arrangement mechanism, a sensor group, and a controller.

[0024] The irradiation sterilization chamber contains irradiation equipment used to sterilize goods.

[0025] The sensor array is used to measure the cargo.

[0026] The conveyor belt is used to transport goods, and the conveyor belt passes through the irradiation sterilization chamber.

[0027] The controller is connected separately to the sensor group, the cargo arrangement mechanism, and the irradiation equipment. It is used to calculate the volume information (i.e., the length, width, and height of the cargo) of each cargo based on the measurement signals fed back by the sensor group, and to control the cargo arrangement mechanism to arrange the cargo according to the volume information of each cargo, as well as to control the start and stop time of the irradiation equipment.

[0028] The cargo arrangement mechanism includes a stop baffle, a first push plate, and a second push plate. The stop baffle is vertically positioned above the conveyor belt and moves up and down reciprocally according to the control signal from the controller. The first push plate and the second push plate are respectively positioned on both sides of the conveyor belt and move back and forth towards the center of the conveyor belt according to the control signal from the controller.

[0029] Specifically, the conveyor belt includes a first conveyor belt and a second conveyor belt; the first conveyor belt passes through the irradiation sterilization chamber; the exit end of the second conveyor belt is connected to the inlet end of the first conveyor belt. The controller calculates the conveyor speed (i.e., the conveyor speed of the first conveyor belt) of the conveyor belt passing through the irradiation sterilization chamber based on the effective sterilization zone length within the chamber and the preset sterilization time. A sensor array is located at the inlet end of the second conveyor belt; both the sensor array and the cargo arrangement mechanism are mounted on the second conveyor belt. A stop baffle is positioned between the first and second conveyor belts, allowing the cargo to be arranged into a compact sterilization array on the second conveyor belt via the cargo arrangement mechanism.

[0030] The sensor array includes a first distance sensor, a second distance sensor, and a third distance sensor. The first and second distance sensors are respectively positioned on opposite sides of the conveyor belt. The controller calculates the length and width of the goods based on the measurement signals fed back by the first and second distance sensors. The third distance sensor is positioned above the conveyor belt; the controller calculates the height of the goods based on the measurement signal fed back by the third distance sensor.

[0031] Additionally, the sensor array includes an infrared sensor; the infrared sensor is located at the entrance of the irradiation sterilization chamber to sense the goods and determine whether the goods in the sterilization array have begun to enter the irradiation sterilization chamber, and whether all the goods in the sterilization array have entered the irradiation sterilization chamber.

[0032] Furthermore, the controller includes a data acquisition module, a model generation module, an arrangement module, and a drive module connected in sequence.

[0033] The acquisition module is connected to the sensor group and is used to acquire data from the sensor group.

[0034] The model generation module is used to generate a corresponding motion model based on the volume information of the goods and the moving speed of the conveyor belt.

[0035] The arrangement module is used to acquire the volume information of each item and the corresponding acquisition order, and to simulate the arrangement of the items in the motion model.

[0036] The drive module is connected separately to the conveyor belt, irradiation equipment and cargo arrangement mechanism, and is used to output corresponding control signals to the cargo arrangement mechanism according to the simulated arrangement, and send control signals to the corresponding equipment.

[0037] Please see Figure 2 This embodiment provides a control method for a bulk cargo disinfection device, applied to the aforementioned bulk cargo disinfection device, comprising the following steps:

[0038] S1: Determine the disinfection duration for batch disinfection (10-30 seconds), and then start the second conveyor belt;

[0039] S2: At this point, the staff begins to place goods continuously on the second conveyor belt, identify and calculate the volume information of the goods, and generate a corresponding motion model based on the moving speed of the second conveyor belt.

[0040] Specifically, the goods pass by the first distance sensor, the second distance sensor, and the third distance sensor simultaneously. The first and second distance sensors can measure the distance between the goods and the two sides of the conveyor belt, respectively, and thus calculate the width of the goods. The third distance sensor is used to measure the height of the goods. Since the goods are placed on the second conveyor belt, the length of the goods can be calculated based on the moving speed of the conveyor belt and the time it takes for the first and second distance sensors to identify the goods.

[0041] Additionally, since the goods placed on the conveyor belt are not neatly arranged and may be crooked, the distance values ​​(measurement signals) detected by the first and second distance sensors will change significantly. A corresponding motion model can be generated based on the distance values ​​actually obtained by the first and second distance sensors, and then the actual length and width of the goods can be calculated.

[0042] S3: Calculate the base area of ​​the goods and determine whether the base area of ​​the goods is greater than the area threshold; if yes, proceed to step S6; if no, proceed to step S4. That is, when the base area of ​​a single item is too large, the goods are not arranged, and the goods that have been arranged before are regarded as an array, and the goods are regarded as a separate disinfection array.

[0043] S4: Control the stop baffle to descend, simulate the arrangement of each identified item, determine the position information of each item in the disinfection array in sequence, and calculate the push plate driving information corresponding to the position information; drive the first push plate and / or the second push plate according to the push plate driving information.

[0044] The location information of the goods in the disinfection array includes the distance between the side of the goods and one or both sides of the conveyor belt; the pusher drive information includes the pushing distance and the pushing time. The controller calculates the pushing distance of the first pusher and / or the second pusher according to the corresponding location information, and calculates the pushing time of the goods passing the first pusher and / or the second pusher according to the corresponding motion model.

[0045] When the stop baffle descends, the goods are blocked from advancing further at the exit section of the second conveyor belt, and thus accumulate as they are transported by the second conveyor belt. To effectively improve the efficiency of radiation sterilization, the gaps between goods in a sterilization array should be minimized. Therefore, by adjusting the relative positions of each item in the direction perpendicular to the conveyor belt using the first push plate and / or the second push plate, multiple items can form an irregular sterilization array, effectively shortening the sterilization length.

[0046] S5: Calculate the length of the disinfection array and determine whether the length of the disinfection array is greater than or equal to the set length threshold. If yes, proceed to step S6; otherwise, repeat steps S2 to S5. In step S4, if the cutoff baffle is already in the descended state, there is no need to repeat the operation on the cutoff baffle.

[0047] S6: Control the rise of the stop baffle and start the first conveyor belt to transfer the goods in the current disinfection array to the irradiation disinfection chamber, and start the irradiation equipment to disinfect the goods in the disinfection array. During irradiation disinfection, the irradiation intensity is calculated based on the highest height of the goods in the disinfection array.

[0048] The conveying speed of the first conveyor belt is calculated based on the effective disinfection interval length in the irradiation disinfection chamber and the preset disinfection time. That is, the conveying speed of the first conveyor belt is equal to the effective disinfection interval length in the irradiation disinfection chamber divided by the preset disinfection time in step S1.

[0049] Considering the limited length of the second conveyor belt, and the large quantity of goods often being processed in batches, it is necessary to calculate the total length of the disinfection array generated during the simulation. When the total length of the disinfection array is greater than or equal to the set length threshold, the disinfection array needs to enter the irradiation disinfection chamber for disinfection, and the subsequent goods will be arranged into the disinfection array.

[0050] Furthermore, in this process, an infrared sensor installed at the entrance of the irradiation sterilization chamber is used to sense the goods and determine whether the goods in the sterilization array have begun to enter the irradiation sterilization chamber, or whether all the goods in the sterilization array have entered the irradiation sterilization chamber; an infrared sensor can also be installed at the exit of the irradiation sterilization chamber to sense the goods and determine whether all the goods in the sterilization array have been sterilized.

[0051] The irradiation equipment is activated only when the goods in the disinfection array begin to enter the irradiation disinfection chamber, and is promptly shut down once all the goods in the disinfection array have left the irradiation disinfection chamber, in order to further reduce the environmental pollution caused by irradiation.

[0052] Additionally, by setting several height ranges and corresponding irradiance levels, the system can automatically match the highest height of the cargo, thus simplifying the calculation.

[0053] S7: Determine whether the goods have been identified within the set time threshold. If yes, repeat steps S2 to S7; otherwise, proceed directly to S8.

[0054] S8: Determine if there are any unsterilized goods on the conveyor belt. If yes, repeat steps S3 to S8; otherwise, proceed to step S9.

[0055] S9: Enter standby mode; that is, the second conveyor belt operates at a speed lower than the operating speed until the sensor group detects that new goods have been placed on the second conveyor belt.

[0056] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0057] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of the invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as will be understood by those skilled in the art to which embodiments of the invention pertain.

[0058] Those skilled in the art will understand that all or part of the steps of the methods described in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable medium, and when executed, it includes one or a combination of the steps of the method embodiments.

[0059] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method.

[0061] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A bulk disinfection device for goods, characterized in that, include: Conveyor belt, irradiation sterilization chamber, cargo arrangement mechanism, sensor group and controller; The irradiation sterilization chamber is equipped with an irradiation device, which is used to sterilize goods. The conveyor belt is used to transport goods, and the conveyor belt passes through the irradiation sterilization chamber; The sensor array is used to measure the cargo; The controller is individually connected to the sensor group, the cargo arrangement mechanism, and the irradiation equipment. It is used to calculate the volume information of each cargo based on the measurement signals fed back by the sensor group, and to control the cargo arrangement mechanism to arrange the cargo based on the volume information of each cargo, as well as to control the start and stop time of the irradiation equipment. The cargo arrangement mechanism includes a stop baffle, a first pusher plate, and a second pusher plate. The stop baffle is vertically positioned above the conveyor belt and reciprocates up and down according to the control signal from the controller. The first and second pusher plates are respectively positioned on both sides of the conveyor belt and reciprocate back and forth towards the center of the conveyor belt according to the control signal from the controller. The conveyor belt includes a first conveyor belt and a second conveyor belt. The first conveyor belt passes through the irradiation sterilization chamber. The outlet end of the second conveyor belt is connected to the inlet end of the first conveyor belt. The sensor group and the cargo arrangement mechanism are both mounted on the second conveyor belt. The stop baffle is located between the first and second conveyor belts. The controller simulates the arrangement of the goods based on the volume information of each item and the corresponding acquisition order, and outputs corresponding control signals to the goods arrangement mechanism based on the simulated arrangement.

2. The bulk disinfection device for goods according to claim 1, characterized in that: The controller calculates the conveyor speed of the conveyor belt passing through the irradiation disinfection chamber based on the effective disinfection interval length and the preset disinfection time.

3. A bulk disinfection device for goods according to claim 1 or 2, characterized in that: The sensor array is located at the inlet end of the conveyor belt; The sensor group includes a first distance sensor and a second distance sensor, which are respectively arranged on both sides of the conveyor belt and are positioned opposite each other. The controller calculates the length and width of the cargo based on the measurement signals fed back by the first distance sensor and the second distance sensor.

4. A bulk disinfection device for goods according to claim 3, characterized in that: The sensor group includes a third distance sensor, which is disposed above the conveyor belt; The controller calculates the cargo height based on the measurement signal fed back by the third distance sensor.

5. A bulk disinfection device for goods according to claim 1, characterized in that: The entrance to the irradiation sterilization chamber is also equipped with an infrared sensor for sensing goods.

6. A control method for a bulk cargo disinfection device, applied to the bulk cargo disinfection device according to any one of claims 1 to 5, characterized in that, Includes the following steps: The volume information of the goods is identified and calculated, and a corresponding motion model is generated based on the moving speed of the conveyor belt. The control gate lowers, and the identified goods are simulated and arranged to determine the status of each goods in the elimination process. The position information in the poison array is obtained, and the pusher drive information corresponding to the position information is calculated; Drive the first push plate and / or the second push plate according to the push plate driving information; The control stop baffle rises, transferring the goods in the disinfection array to the irradiation disinfection chamber; The irradiation equipment is activated to disinfect the goods in the disinfection array.

7. The control method for a bulk disinfection device for goods according to claim 6, characterized in that, include: The location information includes the distance between the side of the goods and one or both sides of the conveyor belt; The pusher drive information includes the pushing distance and the pushing time point; The pushing distance of the first push plate and / or the second push plate is calculated based on the corresponding position information. The timing of the goods passing over the first push plate and / or the second push plate is calculated based on the corresponding motion model.

8. The control method for a bulk disinfection device for goods according to claim 6, characterized in that, include: Based on the volume information of the goods, it is determined whether the bottom area of ​​the goods is greater than a set area threshold. If so, the goods are disinfected separately. Calculate the length of the disinfection array and determine whether the length of the disinfection array is greater than or equal to a set length threshold; if so, control the cut-off baffle to rise.

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