A device and method for easily identifying the size of a film cassette

By using a fixed plate and push rod assembly in the cartridge identification device, combined with a distance sensor to detect the side distance of the cartridge, the problem of low efficiency in manual identification is solved, achieving efficient and accurate cartridge specification identification and classification, and reducing equipment complexity and cost.

CN117339897BActive Publication Date: 2026-07-21SHANGHAI TUSHUANG PRECISION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI TUSHUANG PRECISION EQUIP CO LTD
Filing Date
2023-10-25
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing technologies, the identification and classification of chip box specifications rely on manual operation, which is inefficient and prone to errors, and sensor solutions increase the complexity and cost of the equipment.

Method used

By using a fixed plate and push rod assembly, combined with a distance sensor, the specifications are determined by detecting the distance to the side of the disc cassette, reducing the number of sensors and improving the accuracy and efficiency of identification and classification.

Benefits of technology

It achieves efficient and accurate identification and classification of tablet and cassette specifications, reduces equipment complexity and processing costs, and is suitable for the management needs of the pharmaceutical industry.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a simple and easy device and method for identifying the specifications of a film box, which comprises a fixed plate, a push rod assembly and a distance sensor, wherein the fixed plate is provided with a conveying roller and a discharging part, the push rod assembly is provided with a first baffle, a second baffle, a first rotating shaft and a second rotating shaft, the film box is operatively arranged between the first baffle and the second baffle, the first baffle can rotate along a first rotating direction with the first rotating shaft as the axis, the second baffle can rotate along a second rotating direction with the second rotating shaft as the axis, the distance sensor is arranged on the fixed plate, and the distance sensor is provided with a transmitting part, a first receiving part, a second receiving part and a chip, wherein the first receiving part and the second receiving part are connected with the chip. The fixed plate, the push rod assembly and the distance sensor are arranged, the number of sensors is reduced, the wiring workload is reduced, the distance from the distance sensor to the side edge of the film box is detected, the specifications of the film box are determined according to the distance, and the processing cost of the fixed plate is reduced.
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Description

Technical Field

[0001] This invention relates to the technical field of tablet cassette identification, and more particularly to a simple device and method for identifying tablet cassette specifications. Background Technology

[0002] In the pharmaceutical industry, tablets are one of the most common forms of medicine, and they are usually packaged in tablet cases for easy storage and use. However, due to the variety of tablet cases available in different sizes and specifications on the market, accurately identifying and classifying different sizes of tablet cases is an important task for pharmaceutical manufacturers and distributors.

[0003] Traditional methods for identifying chip cassette specifications rely primarily on manual operation, which presents several problems. First, manual operation is time-consuming and labor-intensive, resulting in low efficiency. Second, manual operation is prone to errors, leading to decreased accuracy in identification and classification. Furthermore, manual operation is susceptible to subjectivity and individual differences, hindering standardization and automation.

[0004] The most common approach in the existing technology is to install several sensors on the bottom of the chip box to be identified. While this increases the accuracy of identification and classification, it also increases the number of sensors, the amount of wiring work, and the processing cost of the mounting plate used to fix the chip box. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a simple device and method for identifying the specifications of tablet boxes.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A simple device for identifying the size of a tablet cassette, comprising:

[0008] A fixed plate is provided with a plurality of conveying rollers, which are arranged sequentially along the length of the fixed plate to form a conveying channel. All of the conveying rollers rotate synchronously. A discharge section is provided on the fixed plate.

[0009] A push rod assembly is rotatably mounted on the conveying roller. The push rod assembly has a first baffle, a second baffle, a first rotating shaft, and a second rotating shaft. There is a gap between the first baffle and the second baffle. A sheet box is operably placed in the gap. The two sides of the sheet box abut against the first baffle and the second baffle, respectively. The two ends of the first baffle are directly opposite to the two ends of the second baffle. The first rotating shaft is located on one end of the first baffle, and the second rotating shaft is located on the other end of the second baffle, which is directly opposite to the first baffle. The first baffle can rotate about the first rotating shaft in a first rotation direction, and the second baffle can rotate about the second rotating shaft in a second rotation direction. The first rotation direction is opposite to the second rotation direction.

[0010] A distance sensor is disposed on the fixed plate. The second baffle is closer to the distance sensor than the first baffle. The distance sensor has a transmitter, a first receiver, a second receiver, and a chip. A first ray path is formed between the transmitter and the first receiver, and a second ray path is formed between the transmitter and the second receiver. Both the first receiver and the second receiver are connected to the chip.

[0011] The aforementioned simple device for identifying cassette specifications, wherein the push rod assembly further includes:

[0012] A first card plate is provided along the length of the conveying roller, and a first slot is provided at the end of the first card plate away from the distance sensor. The first rotating shaft is fixedly disposed in the slot.

[0013] The second card plate is arranged opposite to the first card plate and is arranged along the length direction of the conveying roller. A second slot is provided at one end of the second card plate near the distance sensor. The second rotating shaft is fixedly arranged in the second slot. The side of the second baffle is operably abutted against the side wall of the second slot.

[0014] A reflector, the reflector being connected to the second baffle;

[0015] A connecting rod, which is rotatable about the second pivot axis in the second rotation direction, and the connecting rod is connected to the second baffle.

[0016] The aforementioned simple device for identifying cassette specifications, wherein the push rod assembly further includes:

[0017] A first spring portion, one end of which is connected to the first baffle, and the other end of which is operably abutted against the side wall of the first slot, the first spring portion having a first elastic force to drive the first baffle to rotate in the second rotation direction;

[0018] The second spring has its two ends connected to the second baffle and the connecting rod, respectively, and the second spring has a second elastic force that drives the second baffle to approach the first baffle;

[0019] The third spring, whose two ends are also connected to the second baffle and the connecting rod respectively, has a third elastic force that drives the second baffle to rotate in the first rotation direction.

[0020] In the aforementioned simple device for identifying the specifications of a cassette, the fixing plate has a first annular plate and a second annular plate. The first annular plate is sleeved around the second annular plate. A plurality of conveying rollers are disposed between the first annular plate and the second annular plate. Both ends of each conveying roller are rotatably connected to the first annular plate and the second annular plate, respectively. The distance sensor is connected to the second annular plate, and the discharge section is opened on the first annular plate.

[0021] The aforementioned simple device for identifying the specifications of a tablet box includes a discharge section comprising a first discharge port, a second discharge port, and a third discharge port, wherein the first discharge port, the second discharge port, and the third discharge port are sequentially disposed on the first annular plate.

[0022] The aforementioned simple device for identifying chip box specifications, wherein the distance sensor further includes: a housing connected to the second annular plate, a partition inside the housing dividing the interior of the housing into a first chamber and a second chamber, a transmitter and a first receiver both located in the first chamber, both facing the partition, a second receiver located in the second chamber, and a chip located at the upper end of the partition, with both the first receiver and the second receiver connected to the chip.

[0023] In the aforementioned simple device for identifying the specifications of a cartridge, the housing has a first through hole and a second through hole, the first through hole being located on one side of the transmitting part and the second through hole being directly opposite the second receiving part.

[0024] In the aforementioned simple device for identifying the specifications of a film cassette, a reflecting prism is provided inside the first through hole, and the reflecting prism is positioned on the second ray path.

[0025] In the aforementioned simple device for identifying chip cassette specifications, the housing is provided with several indicator lights, and each of the indicator lights is connected to the chip.

[0026] A simplified method for identifying cassette specifications, wherein the apparatus for using the aforementioned simplified method for identifying cassette specifications includes:

[0027] Step S1: An external robotic arm picks up the cassette to be identified and places it between the first baffle and the second baffle;

[0028] Step S2: The second spring pushes the second baffle, which in turn pushes the film box so that both ends of the film box abut against the first baffle and the second baffle respectively;

[0029] Step S3: The cassette and the pusher assembly move from one end of the conveying channel to the other end;

[0030] Step S4: The emitting part continuously emits rays. After being emitted from the emitting part, the rays are reflected by the partition and arrive at the first receiving part to form the first ray path. After being emitted from the emitting part, the rays are reflected by the partition and pass through the reflecting prism and the reflecting plate in sequence to the second receiving part to form the second ray path.

[0031] Step S5: The time when the first receiving unit receives a portion of the rays is recorded as the first time and fed back to the chip; the time when the second receiving unit receives another portion of the rays is recorded as the second time and fed back to the chip.

[0032] Step S6: The chip calculates the difference between the first time and the second time;

[0033] Step S7: Determine the specifications of the cassette based on the magnitude of the difference;

[0034] Step S8: The indicator light displays red, yellow, or green according to the specifications of the cassette determined by the judgment;

[0035] Step S9: The connecting rod can rotate about the second pivot axis in the second rotation direction to push the tablet box to move away from the second baffle, drive the first baffle to rotate about the first pivot axis in the first rotation direction, and push the tablet box to the discharge section;

[0036] Step S10: The first baffle rotates in the second rotation direction under the action of the first elastic force of the first spring, and the second baffle rotates in the first rotation direction under the action of the third elastic force of the third spring, thus completing the reset.

[0037] The present invention, by employing the above-mentioned technology, has the following positive effects compared with the prior art:

[0038] (1) The present invention sets up a fixing plate and push rod assembly, which reduces the number of sensors, reduces the wiring workload, and optimizes the processing cost of the fixing plate used to fix the chip box.

[0039] (2) This invention incorporates a distance sensor that detects the distance to the side of the tablet box and determines the size of the tablet box based on the distance, enabling rapid and accurate identification and classification of tablet boxes of different sizes. This device is highly efficient, accurate, and stable, and is suitable for the pharmaceutical industry's needs in managing and controlling tablet box specifications. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the simple device for identifying the size of a tablet box according to the present invention.

[0041] Figure 2 This is a schematic top view of the device for easily identifying the size of a cassette according to the present invention.

[0042] Figure 3 This is a schematic diagram of a partial cross-sectional view of the distance sensor of the present invention.

[0043] Figure 4 This is a schematic side view of the device for easily identifying the size of a cassette according to the present invention.

[0044] Figure 5 This is a schematic diagram of the distance sensor of the present invention.

[0045] Figure 6 This is a schematic diagram of a partial cross-sectional view of the simplified identification of the cartridge specifications according to the present invention.

[0046] Figure 7 This is a partial schematic diagram of a specific embodiment of the present invention.

[0047] In the attached diagram: 1. Fixing plate; 2. First annular plate; 3. Second through hole; 4. Distance sensor; 5. Signal light; 6. Housing; 7. First through hole; 8. Conveying roller; 9. Second annular plate; 10. Push rod assembly; 11. Third discharge port; 12. Discharge section; 13. Second discharge port; 14. First discharge port; 15. First rotating shaft; 16. Chip; 17. First chamber; 18. Second chamber; 19. Chip cassette; 20. Second receiving section; 1. Partition; 22. First receiving unit; 23. Transmitting unit; 24. Reflecting prism; 25. Bolt; 26. 4” cartridge; 27. 6” cartridge; 28. 8” cartridge; 29. ​​First spring unit; 30. First baffle; 31. Second baffle; 32. Second rotating shaft; 33. First locking plate; 34. First locking slot; 35. Second locking slot; 36. Second locking plate; 37. Second spring; 38. Connecting rod; 39. Reflector; 40. Third spring. Detailed Implementation

[0048] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention. Figure 1 This is a schematic diagram of the simplified device for identifying the size of a tablet cassette according to the present invention; Figure 2 This is a schematic top view of the device for easily identifying the size of a tablet cassette according to the present invention; Figure 3 This is a schematic diagram of a partial cross-sectional view of the distance sensor of the present invention; Figure 4 This is a schematic side view of the device for easily identifying the size of a tablet cassette according to the present invention; Figure 5 This is a schematic diagram of the distance sensor of the present invention; Figure 6 This is a schematic diagram of a partial cross-sectional view of the simplified identification of the cartridge specifications of the present invention; Figure 7 This is a partial schematic diagram of a specific embodiment of the present invention, see below. Figures 1 to 6The diagram illustrates a simplified device for identifying tablet cassette specifications according to a preferred embodiment. The device includes a fixed plate 1, a pusher assembly 10, and a distance sensor 4. The fixed plate 1 has several conveying rollers 8 arranged sequentially along its length to form a conveying channel. All conveying rollers 8 rotate synchronously. The fixed plate 1 has a discharge section 12. The pusher assembly 10 is rotatably mounted on the conveying rollers 8. The pusher assembly 10 has a first baffle 30, a second baffle 31, a first rotating shaft 15, and a second rotating shaft 32. A gap exists between the first baffle 30 and the second baffle 31, and a tablet cassette 19 is operably placed within this gap. The two sides of the tablet cassette 19 abut against the first baffle 30 and the second baffle 31, respectively. The two ends of the first baffle 30 are directly opposite the two ends of the second baffle 31. The first rotating shaft... 15 is disposed on one end of the first baffle 30, and the second rotating shaft 32 is disposed on the other end of the second baffle 31, which is directly opposite to the first baffle 30. The first baffle 30 can rotate about the first rotating shaft 15 in a first rotation direction, and the second baffle 31 can rotate about the second rotating shaft 32 in a second rotation direction. The first rotation direction is opposite to the second rotation direction. The distance sensor 4 is disposed on the fixed plate 1. The second baffle 31 is closer to the distance sensor 4 than the first baffle 30. The distance sensor 4 has a transmitting part 23, a first receiving part 22, a second receiving part 20, and a chip 16. A first ray path is formed between the transmitting part 23 and the first receiving part, and a second ray path is formed between the transmitting part 23 and the second receiving part 20. Both the first receiving part 22 and the second receiving part 20 are connected to the chip 16.

[0049] In a preferred embodiment, the distance sensor 4 can be selected from the first time-of-flight sensor and the second time-of-flight sensor in Chinese Utility Model CN114787652A, which directly measures the time between the emitted light and the detection of the reflection of light from the target.

[0050] Furthermore, the first direction of rotation is as follows: Figure 2 The clockwise rotation direction is shown, and the second rotation direction is as follows. Figure 2 The direction of counterclockwise rotation is shown.

[0051] Furthermore, the loading action of the disc cassette 19 is completed by an external robotic arm, which picks up the disc cassette 19 to be identified and places the disc cassette 19 between the first baffle 30 and the second baffle 31.

[0052] In a preferred embodiment, such as Figure 1 As shown, the push rod assembly 10 also includes:

[0053] The first card plate 33 is arranged along the length direction of the conveying roller 8. A first slot 34 is provided on the end of the first card plate 33 away from the distance sensor 4. The first rotating shaft 15 is fixedly installed in the slot.

[0054] The second card plate 36 is arranged opposite to the first card plate 33. The second card plate 36 is arranged along the length direction of the conveying roller 8. A second card groove 35 is opened on the second card plate 36 near the distance sensor 4. The second rotating shaft 32 is fixedly arranged in the second card groove 35. The side of the second baffle 31 is operablely abutted against the side wall of the second card groove 35.

[0055] Reflector 39, the reflector 39 is connected to the second baffle 31, such as Figure 7 As shown, the width of the film cassette 19 varies with different specifications, so the distance between the reflector 39 and the distance sensor 4 is different. The distance sensor 4 determines the specifications of the film cassette 19 based on the distance by detecting the distance of the reflector 39.

[0056] The connecting rod 38 is capable of rotating about the second pivot 32 in the second rotation direction, and the connecting rod 38 is connected to the second baffle 31.

[0057] Preferably, the first rotating shaft 15 is connected to the motor shaft of a motor. When the external robotic arm picks up the disc cassette 19 to be identified and places the disc cassette 19 between the first baffle 30 and the second baffle 31, the motor does not move, and the first rotation remains stationary.

[0058] In a preferred embodiment, the push rod assembly 10 further includes:

[0059] The first spring part 29 has one end connected to the first baffle 30 and the other end operable against the side wall of the first slot 34. The first spring part 29 has a first elastic force that drives the first baffle 30 to rotate in the second rotation direction.

[0060] The second spring 37 has two ends connected to the second baffle 31 and the connecting rod 38 respectively, and the second spring 37 has a second elastic force to drive the second baffle 31 closer to the first baffle 30.

[0061] The third spring 40 is connected at both ends to the second baffle 31 and the connecting rod 38 respectively. The third spring 40 has a third elastic force that drives the second baffle 31 to rotate in the first rotation direction.

[0062] Furthermore, when the external robotic arm grasps the disc cassette 19 to be identified and places it between the first baffle 30 and the second baffle 31, the first rotation remains fixed, and the second spring 37 pushes the second baffle 31, thereby pushing the disc cassette 19 so that both ends of the disc cassette 19 abut against the first baffle 30 and the second baffle 31 respectively, thereby changing the size of the gap between the first baffle 30 and the second baffle 31, which is equal to the width of the disc cassette 19 to be identified.

[0063] In a preferred embodiment, such as Figure 1As shown, the fixed plate 1 has a first annular plate 2 and a second annular plate 9. The first annular plate 2 is sleeved around the second annular plate 9. Several conveying rollers 8 are disposed between the first annular plate 2 and the second annular plate 9. Both ends of each conveying roller 8 are rotatably connected to the first annular plate 2 and the second annular plate 9, respectively. The distance sensor 4 is connected to the second annular plate 9. By installing a distance sensor 4, when a film box 19 passes by the distance sensor 4, the distance sensor 4 detects the distance of the reflector plate 39 and determines the specifications of the film box 19 based on the distance. This reduces the number of sensors and the amount of wiring work. The discharge part 12 is opened on the first annular plate 2.

[0064] In a preferred embodiment, chip 16 can be any commercially available chip 16 that has a measurement time interval capability.

[0065] Furthermore, chip 16 can be selected from the main control chip in Chinese Utility Model CN111707149A to realize the acquisition and measurement of time intervals.

[0066] In a preferred embodiment, the discharge section 12 includes a first discharge port 14, a second discharge port 13, and a third discharge port 11. The first discharge port 14, the second discharge port 13, and the third discharge port 11 are sequentially opened on the first annular plate 2. Based on the different specifications of the cassettes 19 determined by the distance sensor 4, the cassettes 19 are discharged from the first discharge port 14, the second discharge port 13, or the third discharge port 11 respectively, thereby realizing the classification of cassettes 19 of different specifications.

[0067] Furthermore, if the determined tablet cassette 19 is a 4” tablet cassette 26, the second baffle 31 will push the 4” tablet cassette 26 out of the first discharge port 14; if the determined tablet cassette 19 is a 6” tablet cassette 27, the second baffle 31 will push the 6” tablet cassette 27 out of the second discharge port 13; if the determined tablet cassette 19 is an 8” tablet cassette 28, the second baffle 31 will push the 8” tablet cassette 28 out of the third discharge port 11.

[0068] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.

[0069] In addition to the above, the present invention also has the following embodiments:

[0070] In a further embodiment of the present invention, the distance sensor 4 further includes: a housing 6, the housing 6 being connected to the second annular plate 9, as shown below. Figure 3As shown, a partition 21 is provided inside the housing 6, which divides the interior of the housing 6 into a first chamber 17 and a second chamber 18. The transmitting part 23 and the first receiving part 22 are both located in the first chamber 17, and both the transmitting part 23 and the first receiving part 22 are directly opposite the partition 21. The second receiving part 20 is located in the second chamber 18. The chip 16 is located at the upper end of the partition 21. The first receiving part 22 and the second receiving part 20 are both connected to the chip 16, which serves to isolate the light interference in the first chamber 17 and the second chamber 18, thereby improving the detection accuracy of the distance sensor 4.

[0071] In further embodiments of the present invention, such as Figure 5 As shown, the housing 6 has a first through hole 7 and a second through hole 3. The first through hole 7 is located on one side of the transmitting part 23, and the second through hole 3 is directly opposite the second receiving part 20.

[0072] In further embodiments of the present invention, such as Figure 5 As shown, a reflecting prism 24 is provided inside the first through hole 7, and the reflecting prism 24 is located on the second ray path.

[0073] Furthermore, such as Figure 6 As indicated by the arrow, the emitting part 23 continuously emits rays. After being emitted from the emitting part 23, the rays are reflected by the partition 21 to the first receiving part 22 to form a first ray path. After being emitted from the emitting part 23, the rays are reflected by the partition 21 and pass through the reflecting prism 24 and the reflecting plate 39 in sequence to the second receiving part 20 to form a second ray path.

[0074] In further embodiments of the present invention, such as Figure 5 As shown, a bolt 25 is provided at each of the four corners of the lower end of the housing 6. The housing 6 is installed on the second annular plate 9 by the bolts 25, which is both secure and convenient for disassembly and maintenance.

[0075] In a further embodiment of the present invention, the housing 6 is provided with a plurality of indicator lights 5, all of which are connected to the chip 16. According to the specifications of the chip box 19 determined by the determination, the indicator lights 5 can display different colors to serve as a prompt.

[0076] Furthermore, signal light 5 can be displayed in red, yellow, or green.

[0077] Furthermore, the specifications of the determined film cassette 19 are 4” film cassette 26, and several indicator lights 5 are all red; the specifications of the determined film cassette 19 are 6” film cassette 27, and several indicator lights 5 are all yellow; the specifications of the determined film cassette 19 are 8” film cassette 28, and several indicator lights 5 are all green.

[0078] A simplified method for identifying the specifications of a cassette 19, wherein the apparatus for using the aforementioned simplified identification device for the specifications of a cassette 19 includes:

[0079] Step S1: The external robotic arm picks up the disc cassette 19 to be identified and places the disc cassette 19 between the first baffle 30 and the second baffle 31;

[0080] Step S2: The second spring 37 pushes the second baffle 31, which in turn pushes the film box 19 so that both ends of the film box 19 abut against the first baffle 30 and the second baffle 31 respectively;

[0081] Step S3: The cassette 19 and the pusher assembly 10 move from one end of the conveying channel to the other.

[0082] Step S4: The emitting part 23 continuously emits rays. After the rays are emitted from the emitting part 23, they are reflected by the partition 21 to the first receiving part 22 to form a first ray path. After the rays are emitted from the emitting part 23, they are reflected by the partition 21 and pass through the reflecting prism 24 and the reflecting plate 39 in sequence to the second receiving part 20 to form a second ray path.

[0083] Step S5: The time when the first receiving unit 22 receives a portion of the rays is recorded as the first time and fed back to the chip 16; the time when the second receiving unit 20 receives another portion of the rays is recorded as the second time and fed back to the chip 16.

[0084] Step S6: Chip 16 calculates the difference between the first time and the second time;

[0085] Step S7: Determine the specifications of the cassette 19 based on the magnitude of the difference;

[0086] Step S8: The indicator light 5 displays red, yellow, or green according to the specifications of the disc cartridge 19 determined by the judgment;

[0087] Step S9: The connecting rod 38 can rotate about the second rotating shaft 32 in the second rotation direction to push the tablet box 19 to move away from the second baffle 31, drive the first baffle 30 to rotate about the first rotating shaft 15 in the first rotation direction, and the second baffle 31 pushes the tablet box 19 to the discharge section 12.

[0088] Step S10: The first baffle 30 rotates in the second rotation direction under the action of the first elastic force of the first spring 29, and the second baffle 31 rotates in the first rotation direction under the action of the third elastic force of the third spring 40, thus completing the reset.

[0089] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A simple device for identifying the specifications of a cassette, characterized in that, include: A fixed plate is provided with a plurality of conveying rollers, which are arranged sequentially along the length of the fixed plate to form a conveying channel. All of the conveying rollers rotate synchronously. A discharge section is provided on the fixed plate. A push rod assembly is rotatably mounted on the conveying roller. The push rod assembly has a first baffle, a second baffle, a first rotating shaft, and a second rotating shaft. There is a gap between the first baffle and the second baffle. A sheet box is operably placed in the gap. The two sides of the sheet box abut against the first baffle and the second baffle, respectively. The two ends of the first baffle are directly opposite to the two ends of the second baffle. The first rotating shaft is located on one end of the first baffle, and the second rotating shaft is located on the other end of the second baffle, which is directly opposite to the first baffle. The first baffle can rotate about the first rotating shaft in a first rotation direction, and the second baffle can rotate about the second rotating shaft in a second rotation direction. The first rotation direction is opposite to the second rotation direction. A distance sensor is disposed on the fixed plate. The second baffle is closer to the distance sensor than the first baffle. The distance sensor has a transmitter, a first receiver, a second receiver, and a chip. A first ray path is formed between the transmitter and the first receiver, and a second ray path is formed between the transmitter and the second receiver. Both the first receiver and the second receiver are connected to the chip. The push rod assembly also includes: A first card plate is provided along the length of the conveying roller, and a first slot is provided at the end of the first card plate away from the distance sensor. The first rotating shaft is fixedly disposed in the slot. The second card plate is arranged opposite to the first card plate and is arranged along the length direction of the conveying roller. A second slot is provided at one end of the second card plate near the distance sensor. The second rotating shaft is fixedly arranged in the second slot. The side of the second baffle is operably abutted against the side wall of the second slot. A reflector is connected to the second baffle; the distance sensor detects the distance to the reflector and determines the specifications of the cartridge based on the distance. A connecting rod, which is rotatable about the second pivot axis in the second rotation direction, and the connecting rod is connected to the second baffle. The push rod assembly also includes: A first spring portion, one end of which is connected to the first baffle, and the other end of which is operably abutted against the side wall of the first slot, the first spring portion having a first elastic force to drive the first baffle to rotate in the second rotation direction; The second spring has its two ends connected to the second baffle and the connecting rod, respectively, and the second spring has a second elastic force that drives the second baffle to approach the first baffle; The third spring, whose two ends are also connected to the second baffle and the connecting rod respectively, has a third elastic force that drives the second baffle to rotate in the first rotation direction.

2. The device for easily identifying the size of a cassette box according to claim 1, characterized in that, The fixed plate has a first annular plate and a second annular plate. The first annular plate is sleeved around the second annular plate. A plurality of conveying rollers are disposed between the first annular plate and the second annular plate. Both ends of each conveying roller are rotatably connected to the first annular plate and the second annular plate, respectively. The distance sensor is connected to the second annular plate. The discharge section is opened on the first annular plate.

3. The device for easily identifying the size of a cassette box according to claim 2, characterized in that, The discharge section includes a first discharge port, a second discharge port, and a third discharge port, which are sequentially opened on the first annular plate.

4. The device for easily identifying the size of a cassette box according to claim 3, characterized in that, The distance sensor further includes: a housing connected to the second annular plate, a partition inside the housing dividing the interior of the housing into a first chamber and a second chamber, a transmitter and a receiver both located in the first chamber and facing the partition, a second receiver located in the second chamber, and a chip located at the upper end of the partition, with both the first receiver and the second receiver connected to the chip.

5. The device for easily identifying the size of a cassette box according to claim 4, characterized in that, The housing has a first through hole and a second through hole. The first through hole is located on one side of the transmitting part, and the second through hole is directly opposite the second receiving part.

6. The device for easily identifying the size of a cassette box according to claim 5, characterized in that, A reflecting prism is provided inside the first through hole, and the reflecting prism is located on the second ray path.

7. The device for easily identifying the size of a cassette box according to claim 6, characterized in that, The housing is provided with several indicator lights, and each of the indicator lights is connected to the chip.

8. A simple method for identifying the specifications of a tablet cassette, characterized in that, The apparatus for using the simplified identification cassette size as described in claim 7, the method comprising: Step S1: An external robotic arm picks up the cassette to be identified and places it between the first baffle and the second baffle; Step S2: The second spring pushes the second baffle, which in turn pushes the film box so that both ends of the film box abut against the first baffle and the second baffle respectively; Step S3: The cassette and the pusher assembly move from one end of the conveying channel to the other end; Step S4: The emitting part continuously emits rays. After being emitted from the emitting part, the rays are reflected by the partition and arrive at the first receiving part to form the first ray path. After being emitted from the emitting part, the rays are reflected by the partition and pass through the reflecting prism and the reflecting plate in sequence to the second receiving part to form the second ray path. Step S5: The time when the first receiving unit receives a portion of the rays is recorded as the first time and fed back to the chip; the time when the second receiving unit receives another portion of the rays is recorded as the second time and fed back to the chip. Step S6: The chip calculates the difference between the first time and the second time; Step S7: Determine the specifications of the cassette based on the magnitude of the difference; Step S8: The indicator light displays red, yellow, or green according to the specifications of the cassette determined by the judgment; Step S9: The connecting rod can rotate about the second pivot axis in the second rotation direction to push the tablet box to move away from the second baffle, drive the first baffle to rotate about the first pivot axis in the first rotation direction, and push the tablet box to the discharge section; Step S10: The first baffle rotates in the second rotation direction under the action of the first elastic force of the first spring, and the second baffle rotates in the first rotation direction under the action of the third elastic force of the third spring, thus completing the reset.