Bread shelf life recognizer based on RFID

Abstract

The utility model relates to the technical field of shelf life recognizers, in particular to an RFID (Radio Frequency Identification Device)-based bread shelf life recognizer, which comprises a support frame, a left group of rotating rollers and a right group of rotating rollers are rotationally connected between a front plate body and a rear plate body of the support frame, and a first conveying belt is sleeved between the two rotating rollers in each group; a stepping motor is coaxially arranged at the tail end of one rotating roller in each set, an RFID reader-writer is arranged between the two first conveying belts, end plates are fixedly installed on the top faces of plate bodies on the front side and the rear side of the supporting frame, a left rotating shaft and a right rotating shaft are rotationally connected between the two end plates, and the two rotating shafts are sleeved with a second conveying belt. A plurality of stirring pieces are fixedly installed on the surface of the second conveying belt, a driving motor is coaxially arranged at the tail end of one rotating shaft, a falling hole is formed in a bottom plate body of the supporting frame, and the tail end of an output shaft of a servo motor is fixedly installed on an RFID reader-writer. The conveying and unloading device is convenient to convey and unload, and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of shelf life identifiers, in particular to a bread shelf life identifier based on RFID. Background Art

[0002] With the acceleration of the pace of modern life, food safety issues are increasingly attracting the attention of consumers. Among them, the shelf life management of food is particularly important, which is directly related to the health and rights of consumers. As a daily consumer food, the shelf life management of bread is particularly important. However, the traditional bread shelf life management method often relies on manual marking and inspection, which is not only inefficient but also prone to errors. At present, with the development of RFID technology, that is, wireless radio frequency identification technology, RFID technology has the advantages of non-contact, rapid identification, large data volume, and reusability. In order to achieve the effect of convenient and rapid detection of the shelf life of bread, RFID identifiers are usually used to perform bread shelf life identification operations. Specifically, an RFID tag is set on the bread packaging bag, and the RFID tag contains key information such as the production date and shelf life of the bread. When the RFID reader reads the RFID tag information, the shelf life detection operation is realized.

[0003] However, most of the RFID readers on the market are used to identify the shelf life of bread by manually attaching the bread packaging bag to the RFID reader and then performing the identification operation. This operation requires manual loading and unloading, which will delay a lot of time, is not conducive to mechanized transmission operations, affects the detection efficiency, and brings inconvenience to users. In view of this, we propose a bread shelf life identifier based on RFID. Utility Model Content

[0004] The purpose of the utility model is to provide a bread expiration date identifier based on RFID to solve the defects mentioned in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The RFID-based bread shelf life identifier includes a support frame, two groups of symmetrical rotating rollers are rotatably connected between the front and rear side plates of the support frame, a first conveyor belt is sleeved between the two rotating rollers in each group, a stepper motor is coaxially arranged at the end of one of the rotating rollers in each group, an RFID reader is arranged between the two first conveyor belts, end plates are fixedly installed on the top surfaces of the front and rear side plates of the support frame, two symmetrical rotating shafts are rotatably connected between the two end plates, a second conveyor belt is sleeved on the two rotating shafts, a plurality of equally spaced shifting plates are fixedly installed on the surface of the second conveyor belt, a driving motor is coaxially arranged at the end of one of the rotating shafts, and the second conveyor belt is located directly above the RFID reader.

[0007] Preferably, a plurality of support legs arranged in a matrix are fixedly mounted on the bottom surface of the support frame, and the support legs are used for supporting operation.

[0008] Preferably, the output shaft end of the stepper motor is fixedly mounted on the rotating roller, and the stepper motor is fixedly mounted on the side plate of the support frame.

[0009] Preferably, the surface of the first conveyor belt is flush with the surface of the RFID reader / writer, and is used to convey the bread to the RFID reader / writer for identification operation.

[0010] Preferably, the output shaft end of the drive motor is fixedly mounted on the rotating shaft, and the drive motor is fixedly mounted on the end plate.

[0011] Preferably, a drop hole is provided on the bottom plate of the support frame, the RFID reader is located directly above the drop hole, a servo motor is fixedly installed on the rear side plate of the support frame, the output shaft end of the servo motor is fixedly installed on the RFID reader, and the RFID reader is rotatably connected to the side plate of the support frame via a rotating shaft.

[0012] Preferably, the RFID reader-writer rotates downward to allow the bread on the surface to fall out of the drop hole, thereby completing the removal operation of expired bread.

[0013] Preferably, a data processor is fixedly mounted on the side plate of the support frame, a display is arranged on the surface of the data processor, and an alarm is also arranged on the data processor.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model provides two first conveyor belts, so that one first conveyor belt can be used to convey the bread to a position close to the RFID reader, and then the second conveyor belt is used to rotate to drive the paddle plate to rotate, so as to push the bread to the RFID reader for detection. After the detection is completed, the paddle plate moves to push the bread to the other first conveyor belt. As the first conveyor belt rotates, the bread is conveyed outward to complete the unloading, thereby achieving the effect of convenient loading, unloading and transportation detection.

[0016] 2. The utility model provides a drop hole and a servo motor. When the RFID reader detects that the bread is expired, the servo motor drives the RFID reader to rotate, so that the bread on the RFID reader can fall out of the drop hole, thereby completing the removal of the expired bread. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 3 It is one of the partial structural schematic diagrams of the utility model;

[0020] Figure 4 This is the second schematic diagram of the partial structure of the utility model;

[0021] Figure 5 This is a system module block diagram of the utility model.

[0022] The meaning of each number in the figure is:

[0023] 1. Support frame; 10. Rotating roller; 11. Stepping motor; 12. Support leg; 13. Drop hole; 14. RFID reader; 15. Servo motor; 16. Data processor; 161. Display; 17. Alarm; 18. First conveyor belt;

[0024] 2. End plate; 20. Rotating shaft; 21. Second conveyor belt; 22. Paddle plate; 23. Driving motor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 5 The utility model provides a technical solution: a bread shelf life identifier based on RFID, comprising a support frame 1, two groups of symmetrical rotating rollers 10 are rotatably connected between the front and rear side plates of the support frame 1, a first conveyor belt 18 is sleeved between the two rotating rollers 10 in each group, a stepper motor 11 is coaxially arranged at the end of one of the rotating rollers 10 in each group, the output shaft end of the stepper motor 11 is fixedly mounted on the rotating roller 10, and the stepper motor 11 is fixedly mounted on the side plate of the support frame 1, so as to drive the first conveyor belt 18 to rotate to transport the bread;

[0027] Specifically, an RFID reader 14 is arranged between the two first conveyor belts 18, and end plates 2 are fixedly installed on the top surfaces of the front and rear side plates of the support frame 1. Two left and right symmetrical rotating shafts 20 are rotatably connected between the two end plates 2. A second conveyor belt 21 is sleeved on the two rotating shafts 20. A plurality of equally spaced paddle plates 22 are fixedly installed on the surface of the second conveyor belt 21, and a driving motor 23 is coaxially arranged at the end of one of the rotating shafts 20. The second conveyor belt 21 is located directly above the RFID reader 14, so that the second conveyor belt 21 is rotated to drive the paddle plate 22 to move, thereby further pushing the bread.

[0028] In this embodiment, a plurality of support legs 12 arranged in a matrix are fixedly mounted on the bottom surface of the support frame 1 , and the support legs 12 are used for supporting operation.

[0029] Specifically, the surface of the first conveyor belt 18 is flush with the surface of the RFID reader 14, and is used to convey the bread to the RFID reader 14 for identification.

[0030] Furthermore, the output shaft end of the driving motor 23 is fixedly mounted on the rotating shaft 20 , and the driving motor 23 is fixedly mounted on the end plate 2 .

[0031] In addition, a drop hole 13 is provided on the bottom plate of the support frame 1, and the RFID reader 14 is located directly above the drop hole 13. A servo motor 15 is fixedly installed on the rear side plate of the support frame 1, and the end of the output shaft of the servo motor 15 is fixedly installed on the RFID reader 14. The RFID reader 14 is rotatably connected to the side plate of the support frame 1 through a rotating shaft; the RFID reader 14 rotates downward to allow the bread on the surface of the RFID reader 14 to fall out from the drop hole 13, thereby completing the removal operation of expired bread.

[0032] It is worth mentioning that a data processor 16 is fixedly installed on the side plate of the support frame 1, a display 161 is arranged on the surface of the data processor 16, and an alarm 17 is also arranged on the data processor 16; the RFID reader 14 is used to read the RFID tag information on the bread packaging bag, the data processor 16 is used to process and analyze the read RFID tag information, the display 161 is used to display the processing result, and the alarm 17 is used to send out an alarm signal when the bread is expired; the RFID tag on the bread packaging bag contains key information such as the production date and shelf life of the bread. When the RFID reader 14 reads the RFID tag information, the data processor 16 will calculate the remaining shelf life of the bread according to the production date and shelf life, and display the result on the display 161; if the calculated remaining shelf life is less than or equal to the set threshold value such as 1 day, the alarm 17 will send out an alarm signal to remind the management personnel to deal with the expired bread in time.

[0033] Finally, it should be noted that the components involved in the utility model, such as the display 161, the data processor 16, the RFID reader 14 and the alarm 17, are all universal standard parts or components known to technical personnel in this field, and their structures and principles are all known to technical personnel in this field through technical manuals or through conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and adapted controllers and power supplies, are connected through wires. The specific connection means should refer to the working principle of the utility model. The electrical connection between each electrical component is completed in a sequential working order, and the detailed connection means are all well-known technologies in the field.

[0034] When the RFID-based bread expiration date identifier of the utility model is used, the stepper motor 11 is connected to an external power supply and made to work. When the stepper motor 11 is working, the output shaft thereon rotates to drive the rotating roller 10 to rotate, and further drives the first conveyor belt 18 to rotate, so that the bread is conveyed to a position close to the RFID reader 14. When the drive motor 23 is connected to an external power supply and made to work, the output shaft thereon rotates to drive the rotating shaft 20 and the second conveyor belt 21 to rotate, and the second conveyor belt 21 rotates to drive the paddle 22 to move, so that the bread conveyed on the first conveyor belt 18 is pushed to the RFID reader 14 for detection operation.

[0035] When the detected bread is not expired, the paddle piece 22 continues to move to push the bread to the first conveyor belt 18 at the discharge end, and as the first conveyor belt 18 at the discharge end rotates, the conveying and unloading operation is performed; when the detected bread is expired, the servo motor 15 is connected to the external power supply and starts working, and the output shaft of the servo motor 15 rotates to drive the RFID reader 14 to rotate a certain angle. At this time, the bread on the RFID reader 14 can slide down and fall out from the drop hole 13.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A bread expiration date identifier based on RFID, comprising a support frame (1), characterized in that: Two groups of symmetrical rotating rollers (10) are rotatably connected between the front and rear side plates of the support frame (1), a first conveyor belt (18) is sleeved between the two rotating rollers (10) in each group, a stepper motor (11) is coaxially arranged at the end of one of the rotating rollers (10) in each group, an RFID reader (14) is arranged between the two first conveyor belts (18), end plates (2) are fixedly installed on the top surfaces of the front and rear side plates of the support frame (1), two symmetrical rotating shafts (20) are rotatably connected between the two end plates (2), a second conveyor belt (21) is sleeved on the two rotating shafts (20), a plurality of equally spaced shifting plates (22) are fixedly installed on the surface of the second conveyor belt (21), a driving motor (23) is coaxially arranged at the end of one of the rotating shafts (20), and the second conveyor belt (21) is located directly above the RFID reader (14).

2. The RFID-based bread expiration date identifier according to claim 1, characterized in that: A plurality of support legs (12) arranged in a matrix are fixedly mounted on the bottom surface of the support frame (1), and the support legs (12) are used for supporting operations.

3. The RFID-based bread expiration date identifier according to claim 1, characterized in that: The output shaft end of the stepper motor (11) is fixedly mounted on the rotating roller (10), and the stepper motor (11) is fixedly mounted on the side plate of the support frame (1).

4. The RFID-based bread expiration date identifier according to claim 1, characterized in that: The surface of the first conveyor belt (18) is flush with the surface of the RFID reader / writer (14), and is used to convey the bread to the RFID reader / writer (14) for identification.

5. The RFID-based bread expiration date identifier according to claim 1, characterized in that: The output shaft end of the driving motor (23) is fixedly mounted on the rotating shaft (20), and the driving motor (23) is fixedly mounted on the end plate (2).

6. The RFID-based bread expiration date identifier according to claim 1, characterized in that: A drop hole (13) is provided on the bottom plate of the support frame (1), and the RFID reader (14) is located directly above the drop hole (13). A servo motor (15) is fixedly mounted on the rear plate of the support frame (1), and the output shaft end of the servo motor (15) is fixedly mounted on the RFID reader (14). The RFID reader (14) is rotatably connected to the side plate of the support frame (1) via a rotating shaft.

7. The RFID-based bread expiration date identifier according to claim 6, characterized in that: The RFID reader (14) rotates downward to cause the bread on the surface to fall out of the drop hole (13), thereby completing the removal operation of expired bread.

8. The RFID-based bread expiration date identifier according to claim 1, characterized in that: A data processor (16) is fixedly mounted on the side plate of the support frame (1), a display (161) is arranged on the surface of the data processor (16), and an alarm (17) is also arranged on the data processor (16).

Images