Processing circuit and device for directional card identification and card production line

Abstract

The utility model relates to a processing circuit and device for directional card identification and a card production line, which belong to the technical field of card production and manufacture, and the directional card identification processing circuit is composed of a transmitting optical fiber, a receiving optical fiber, an optical fiber amplifier, a light source and a signal processing circuit, light emitted by the light source is amplified by the optical fiber amplifier and then input into the input end of the transmitting optical fiber, the receiving optical fiber receives light emitted by the transmitting end of the transmitting optical fiber, amplified by the optical fiber amplifier and then input into the signal processing circuit, the signal processing circuit is connected with identification result indicating equipment, and the PLC outputs identification results. The transmitting optical fiber and the receiving optical fiber are arranged on the two sides of the card through fixing tools and fixed to corresponding recognition positions on a card production line, and the problems of low production efficiency and low error rate caused by manual positioning of the position of the to-be-machined card in the existing card production and manufacturing process are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of card production and manufacturing, and particularly relates to a processing circuit, a device and a card production line for directional card recognition. Background Art

[0002] In the process of card production and manufacturing, it usually includes a whole material cutting link. Due to the lack of a directional card recognition device in the current equipment, the card position is installed in the wrong direction due to human error during the loading process. Taking the production and manufacturing of telecom cards as an example, most telecom cards have two chips on one card, and each small card has an independent serial number and the serial numbers are connected to each other. If the card position is installed in the wrong direction, the serial numbers of the cards will be chaotic after milling, and manual review is required, which is difficult to solve the problems of low efficiency and high error probability. Content of the Utility Model

[0003] In view of the above analysis, the utility model aims to provide a directional card recognition device to solve the problems of low production efficiency and high error rate caused by manually positioning the position of the card to be processed in the existing card production and manufacturing process.

[0004] The purpose of the utility model is mainly achieved through the following technical solutions:

[0005] A processing circuit for directional card recognition, the processing circuit includes a transmitting optical fiber, a receiving optical fiber, an optical fiber amplifier, a light source and a signal processing circuit. Among them, the light emitted by the light source is amplified by the optical fiber amplifier and then input to the input end of the transmitting optical fiber. The receiving optical fiber is used to receive the light emitted from the transmitting end of the transmitting optical fiber, and after being amplified by the optical fiber amplifier, it is input to the signal processing circuit. The transmitting optical fiber and the receiving optical fiber are arranged on both sides of the card, and the transmitting end of the transmitting optical fiber is arranged opposite to the receiving end of the receiving optical fiber.

[0006] The beneficial effects of the above solution are as follows: The connection structure in which the light emitted by the light source is amplified by the optical fiber amplifier and then input to the input end of the transmitting optical fiber, and the receiving optical fiber is used to receive the light emitted from the transmitting end of the transmitting optical fiber and then input to the signal processing circuit after being amplified by the optical fiber amplifier, and the setting structure in which the transmitting end of the transmitting optical fiber and the receiving end of the receiving optical fiber are arranged opposite to each other on both sides of the card can conveniently and quickly automatically identify whether there is a problem with the card orientation without manual identification, improving the efficiency of directional card recognition.

[0007] Based on the further improvement of the above solution, the signal processing circuit includes an MCU, an analog-to-digital converter, and an optoelectronic converter. Among them, the input end of the optoelectronic converter is connected to the output end of the receiving optical fiber, the input end of the analog-to-digital converter is connected to the output end of the optoelectronic converter, and the output end of the analog-to-digital converter is connected to the MCU.

[0008] The beneficial effects of the above further improvement scheme are as follows: The optical - electrical converter converts the optical signals emitted by the transmitting optical fiber and the optical signals received at the input end of the receiving optical fiber into analog electrical signals. The analog - to - digital converter then converts the two analog electrical signals into digital electrical signals and outputs them to the MCU. The MCU outputs a processing signal indicating whether the position of the orientation card is correct based on the two digital electrical signals, enabling automatic judgment without manual identification, thus improving the efficiency of orientation card recognition.

[0009] On the other hand, the present utility model also discloses an orientation card recognition device, which includes all the technical features of the above - mentioned processing circuit for orientation card recognition, and further includes a processing circuit for orientation card recognition and a fixing fixture. Among them, the transmitting optical fiber and the receiving optical fiber are fixed on the fixing fixture, and the transmitting end of the transmitting optical fiber is arranged opposite to the receiving end of the receiving optical fiber, and they are jointly aligned with the edge marking position of the card.

[0010] The beneficial effects of the above - mentioned scheme are as follows: Based on the structure and setting method of the fixing fixture that aligns the transmitting optical fiber and the receiving optical fiber with the edge marking position of the card, it is ensured that the edge marking position of the card can be accurately recognized, which is beneficial to improving the efficiency of orientation card recognition.

[0011] Based on a further improvement of the above - mentioned scheme, the fixing fixture includes a first fixing structure and a second fixing structure. The two fixing structures are arranged in parallel, and one end of the first fixing structure and the second fixing structure is correspondingly provided with mounting holes for respectively fixing the receiving optical fiber and the transmitting optical fiber.

[0012] The beneficial effects of the above - mentioned further improvement scheme are as follows: The structure of the fixing fixture ensures that the transmitting optical fiber and the receiving optical fiber can be accurately set at the corresponding positions.

[0013] Based on a further improvement of the above - mentioned scheme, the transmitting optical fiber and the receiving optical fiber further include end - point fixing components; the transmitting optical fiber and the receiving optical fiber are respectively arranged in the mounting holes of the first fixing structure and the second fixing structure through the end - point fixing components.

[0014] The beneficial effects of the above - mentioned further improvement scheme are as follows: The fixing components ensure that the transmitting optical fiber and the receiving optical fiber can be stably arranged in the mounting holes of the first fixing structure and the second fixing structure.

[0015] Based on a further improvement of the above - mentioned scheme, the plane where the card is located is perpendicular to the connection line of the opposite ends of the transmitting optical fiber and the receiving optical fiber, and coincides with the mid - point of the connection line of the opposite end points of the transmitting optical fiber and the receiving optical fiber.

[0016] The beneficial effect of the above further improvement scheme is that the relative position setting structure of the plane where the card is located and the connecting line of the transmitting optical fiber and the receiving optical fiber avoids errors and ensures that the optical directional recognition of the card position can achieve the best effect.

[0017] Based on the further improvement of the above solution, the length of the line connecting the end points of the transmitting optical fiber and the receiving optical fiber is 20 mm.

[0018] The beneficial effect of the above further improvement scheme is to avoid errors caused by the transmitting optical fiber and the receiving optical fiber being too far or too close to the endpoints, thereby ensuring that the optical directional recognition of the card position can achieve the best effect.

[0019] Based on the further improvement of the above scheme, the device also includes a recognition result indication device and a PLC, and the MCU output end is connected to the recognition result indication device input end and the PLC input end; the PLC outputs a processing signal.

[0020] The beneficial effects of the above-mentioned further improvement scheme are: the MCU output end is connected to the result indication device, which can immediately display the recognition result to the production personnel, helping to prompt and warn the production personnel to take immediate action; the MCU output end is connected to the PLC, and the PLC outputs a processing signal, which helps to make immediate processing based on the recognition result to avoid losses or errors.

[0021] On the other hand, the utility model also discloses a card production line, which includes the directional card recognition device and a platform, wherein positioning strips are provided on both side edges of the platform, and the fixed tooling is fixed on the positioning strips on either side, so that the two fixed structures of the fixed tooling are respectively located on the upper and lower sides of the platform and parallel to the platform; through holes corresponding to the mounting holes on the first and second fixed structures are provided on the platform, and the center of the through hole is collinear with the center of the first and second mounting holes.

[0022] The beneficial effects of the above scheme are as follows: the platform structure included in the production line enables the directional card recognition device to be stably set on the production line, and enables the transmitting end of the transmitting optical fiber and the receiving end of the receiving optical fiber to be directly opposite without being blocked, ensuring that the card position can be identified.

[0023] Based on the further improvement of the above solution, the card production line also includes two synchronous stepping conveyor belts, the two conveyor belts are respectively located on the platform inside the positioning edge strip, and the two conveyor belts are placed in parallel.

[0024] The beneficial effects of the above further improvement scheme are as follows: the structure and the set position of the synchronous stepping conveyor belt enable the emission end of the transmitting optical fiber and the receiving end of the receiving optical fiber to be directly opposite without being blocked, and can be aligned with the edge mark of the card on the synchronous stepping conveyor belt.

[0025] In the present utility model, the above technical solutions can also be combined with each other to achieve more preferred combination schemes. Other features and advantages of the present utility model will be described in the following content. Moreover, some advantages can be made obvious from the description or can be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained from the content specifically pointed out in the description and the drawings. Description of the Drawings

[0026] The drawings are only used for the purpose of showing specific embodiments, and are not considered as a limitation to the present utility model. Throughout the drawings, the same reference signs represent the same components.

[0027] Figure 1 Schematic structural diagram of the directional card recognition processing circuit in Embodiment 1 of the present utility model

[0028] Figure 2 Schematic structural diagram of the directional card recognition device in Embodiment 2 of the present utility model Detailed Description of the Embodiments

[0029] The following will specifically describe the preferred embodiments of the present utility model with reference to the drawings. The drawings form a part of this application and are used together with the embodiments of the present utility model to explain the principles of the present utility model, rather than to limit the scope of the present utility model.

[0030] Embodiment 1:

[0031] A specific embodiment of the present utility model discloses a processing circuit for directional card recognition, as Figure 1 shown. The processing circuit includes a transmitting optical fiber, a receiving optical fiber, an optical fiber amplifier, a light source, and a signal processing circuit. Among them, the light emitted by the light source is amplified by the optical fiber amplifier and then input to the input end of the transmitting optical fiber. The receiving optical fiber is used to receive the light emitted from the emission end of the transmitting optical fiber, and after being amplified by the optical fiber amplifier, it is input to the signal processing circuit. The transmitting optical fiber and the receiving optical fiber are arranged on both sides of the card, and the emission end of the transmitting optical fiber and the receiving end of the receiving optical fiber are arranged directly opposite.

[0032] Generally, before the card blank is milled into individual cards, it is in the form of a sheet structure with the same shape and including positioning marks. Among them, the positioning marks are transmissive structures such as notches or through holes provided on one side edge of the card blank. The remaining sides of the card blank are generally straight edges. Therefore, when the card blank is placed incorrectly, the transmissive structure where the positioning mark should be located is blocked or partially blocked. This problem can be effectively solved by performing optical detection on the transmissive structure.

[0033] To achieve this technical purpose, specifically, the light source included in the processing circuit disclosed in this embodiment is used to generate an optical signal. The optical signal meets the required light intensity for detection and will not damage the card surface due to excessive light intensity. Preferably, it is an LED light source. The optical signal emitted by the light source is amplified by the fiber optic amplifier and then input to the input end of the transmitting optical fiber. The transmitting end of the transmitting optical fiber and the receiving end of the receiving optical fiber are arranged opposite each other on both sides of the card and are opposite the edge mark position of the card, aiming to establish an optical propagation path structure between the transmitting end of the transmitting optical fiber and the receiving end of the receiving optical fiber. The receiving optical fiber receives the optical signal emitted by the transmitting end of the transmitting optical fiber, and after being amplified by the fiber optic amplifier, it is input to the signal processing circuit, forming an optical signal loop structure.

[0034] Furthermore, the signal processing circuit includes an MCU, an analog-to-digital converter, and an optoelectronic converter. Among them, the input end of the optoelectronic converter is connected to the output end of the receiving optical fiber, the input end of the analog-to-digital converter is connected to the output end of the optoelectronic converter, and the output end of the analog-to-digital converter is connected to the MCU.

[0035] Specifically, the output end of the receiving optical fiber is connected to the optoelectronic converter, aiming to convert the optical signal output by the receiving optical fiber into an analog electrical signal by the optoelectronic converter. The optoelectronic converter is connected to the analog-to-digital converter to convert the analog electrical signal into a digital electrical signal and output it to the MCU. The MCU pre-stores the intensity value of the optical signal output by the transmitting optical fiber. The MCU obtains the intensity value of the optical signal output by the receiving optical fiber based on the received digital signal, and then obtains a comparison result based on the intensity value of the optical signal output by the transmitting optical fiber and the intensity value of the optical signal output by the receiving optical fiber. If the difference between the two exceeds the threshold, it indicates that the optical path is blocked and the card is placed incorrectly. On the contrary, if the difference between the two does not exceed the threshold, it indicates that the optical path is a through path and the card is placed correctly.

[0036] The processing circuit structure disclosed in this embodiment establishes an optical signal loop for detecting the light transmission of the card edge flag bit, which consists of the transmitting optical fiber, receiving optical fiber, light source, and optical fiber amplifier, based on the light transmission characteristics of the card edge flag bit. Then, the output end of the receiving optical fiber is connected to the photoelectric converter, the photoelectric converter is connected to the analog-to-digital converter, and the connection structure of the analog-to-digital converter connected to the MCU sequentially converts the received optical signal through photoelectric conversion and analog-to-digital conversion into a digital electrical signal recognizable by the MCU, thereby outputting the detection result of whether the card is placed correctly, solving the problems of low efficiency and high error rate of manually orienting the card position in the prior art.

[0037] It should be noted that the algorithm for calculating the received optical signal intensity from the digital signal in the MCU is a commonly used algorithm in the prior art, and the method of logical judgment based on the threshold also belongs to the prior art method. This application does not involve any improvement in software.

[0038] Embodiment 2:

[0039] The second specific embodiment of the present utility model discloses an orientation card recognition device, as Figure 2 shown. The device includes a processing circuit and a fixing fixture for orientation card recognition disclosed in Embodiment 1. Among them, the transmitting optical fiber and the receiving optical fiber are fixed on the fixing fixture, and the transmitting end of the transmitting optical fiber is arranged opposite to the receiving end of the receiving optical fiber, and they are jointly aligned with the card edge flag bit.

[0040] Specifically, the orientation card recognition device disclosed in this embodiment is based on the processing circuit for orientation card recognition disclosed in Embodiment 1, and a fixing fixture for fixing the transmitting end of the transmitting optical fiber and the receiving end of the receiving optical fiber is added.

[0041] Generally, in the milling process of card production and manufacturing, the whole card stock to be processed advances in a step-by-step manner on the production line, and will stop briefly at a certain fixed position and then continue to move forward. Therefore, in this embodiment, the transmitting end of the transmitting optical fiber and the receiving end of the receiving optical fiber are fixed and arranged opposite to each other at the fixed position through the fixing fixture, and are jointly aligned with the card edge flag bit.

[0042] The fixing fixture includes a first fixing structure and a second fixing structure. The two fixing structures are arranged in parallel, and one end of the first fixing structure and the second fixing structure is correspondingly provided with mounting holes for respectively fixing the receiving optical fiber and the transmitting optical fiber.

[0043] Specifically, to achieve the purpose of respectively disposing the transmitting end of the transmitting optical fiber and the receiving end of the receiving optical fiber on both sides of the card, the first fixing structure and the second fixing structure of the fixing tooling can be two parallel sheet-shaped, rib-shaped or wire-columnar structures, or any combination structure of two different shapes with the same length. One end of the first fixing structure and the second fixing structure is correspondingly provided with mounting holes for respectively fixing the receiving optical fiber and the transmitting optical fiber, and the other end includes a self-fixing structure. For example, the first fixing structure and the second fixing structure can be fixed to each other by means of connection, such as bolt fixing or buckle fixing, or the first fixing structure and the second fixing structure are respectively fixed. The purpose is to ensure that the mounting hole positions for fixing the transmitting optical fiber and the structural optical fiber are correct and correspond to each other, and the first fixing structure and the second fixing structure are fixedly arranged.

[0044] Further, the transmitting optical fiber and the receiving optical fiber further include end-point fixing components; the transmitting optical fiber and the receiving optical fiber are respectively disposed in the mounting holes of the first fixing structure and the second fixing structure through the end-point fixing components.

[0045] Exemplarily, the end-point fixing components of the transmitting optical fiber and the receiving optical fiber are nut fixing structures. Specifically, one end is a protective tube for sleeving one end of the optical fiber, the protective tube is connected to one end of the body shell, the other end of the body shell extends out a threaded tube, and a tooth lock washer that is helically fixed to the threaded tube is arranged on the threaded tube; the end-point fixing components of the transmitting optical fiber and the receiving optical fiber can also be fixed by clips or adhesives. The transmitting optical fiber and the receiving optical fiber are respectively inserted into and fixed in the mounting holes of the first fixing structure and the second fixing structure to form a facing arrangement structure.

[0046] Further, the plane where the card is located is perpendicular to the connection line of the facing ends of the transmitting optical fiber and the receiving optical fiber, and coincides with the midpoint of the connection line of the facing end points of the transmitting optical fiber and the receiving optical fiber.

[0047] Further, the length of the connection line of the facing end points of the transmitting optical fiber and the receiving optical fiber is 20 mm.

[0048] Specifically, in order to obtain the best positioning detection effect, the transmitting end of the transmitting optical fiber and the receiving end of the receiving optical fiber are arranged in a vertically symmetric structure with the card plane as the center, that is, the connection line of the transmitting end point of the transmitting optical fiber and the receiving end point of the structural optical fiber is perpendicular to the card plane and the distances from the transmitting end point of the transmitting optical fiber and the receiving end point of the structural optical fiber to the card plane are the same, and the connection line of the transmitting end point of the transmitting optical fiber and the receiving end point of the structural optical fiber is 10 mm.

[0049] Further, the device further includes an identification result indicating device and a PLC. The output end of the MCU is connected to the input end of the identification result indicating device and the input end of the PLC; the PLC outputs a processing signal.

[0050] Specifically, the orientation card recognition device disclosed in this embodiment, based on the orientation card recognition processing circuit disclosed in Embodiment 1, further includes a PLC and a recognition result indicating device. Both the PLC and the recognition result indicating device are connected to the output end of the MCU. When the MCU output end outputs the card orientation detection and recognition result to the recognition result indicating device, the recognition result indicating device issues a corresponding result indication. For example, the recognition result indicating device is a red-green indicator light, a display screen, or an alarm, and different result indications are issued based on different recognition results. When the MCU output end outputs the card orientation detection and recognition result to the PLC, the PLC outputs a processing signal based on different recognition results. Generally, the processing signal is related to controlling the production and manufacturing of the card and the incorrect placement of the recognized card position. For example, a stop instruction is sent to the card production mechanism or an instruction to remove the card with an incorrect position is sent, aiming to perform corresponding processing on the orientation card recognition result of the MCU.

[0051] The orientation card recognition device disclosed in this embodiment includes the orientation card recognition processing circuit of Embodiment 1, as well as a fixing tooling for fixing the transmitting optical fiber and the receiving optical fiber, a PLC and a recognition result indicating device connected to the output end of the MCU. It solves the problem of fixing the positions of the transmitting optical fiber and the receiving optical fiber, as well as the problems of displaying and subsequent processing based on the orientation card recognition result. Compared with the prior art, it can further improve the positioning card recognition efficiency and production efficiency.

[0052] Embodiment 3:

[0053] The second specific embodiment of the present utility model discloses a card production line. The production line includes an orientation card recognition device and a platform disclosed in Embodiment 2. Positioning side strips are provided on both side edges of the platform. The fixing tooling is fixed on the positioning side strip on either side, and the two fixing structures of the fixing tooling are respectively located on the upper and lower sides of the platform and are parallel to the platform. Through holes corresponding to the mounting holes on the first and second fixing structures are provided on the platform, and the centers of the through holes are collinear with the centers of the first and second mounting holes.

[0054] Specifically, the card production line includes a platform and positioning side strips. One side of the first fixing structure and the second fixing structure of the fixing tooling is fixed to the positioning side strips on both sides of the platform, and the installation holes on the other side are arranged opposite to the emitting end of the transmitting optical fiber and the receiving end of the receiving optical fiber. A through hole is also provided on the platform, and the position of the through hole on the platform is exactly the detection position of the edge mark of the card. The installation holes of the first fixing structure and the second fixing structure correspond to the position of the through hole on the platform and are on the same straight line perpendicular to the plane of the platform, aiming to complete the setting of the optical detection path position of the directional card recognition device and ensure the best directional card recognition effect.

[0055] Further, the card production line further includes two synchronous stepping conveyor belts, and the two conveyor belts are respectively located on the platform inside the positioning side strips and are placed in parallel.

[0056] Specifically, the synchronous stepping conveyor belt is used to place the cards and travels in a stepping manner, with a short pause after each step. During each pause, the through hole on the platform, the installation holes of the first fixing structure and the second fixing structure are in the same straight line as the card mark, so as to complete the detection.

[0057] The card production line disclosed in this embodiment includes a platform, a through hole provided on the platform, and positioning side strips. One end of the first fixing structure and the second fixing structure of the fixing tooling is fixed to the positioning side strips, and the installation holes at the other end are collinear with the through hole on the platform. It also includes a synchronous stepping conveyor belt. Each edge of the cards placed on the synchronous stepping conveyor belt will pass through the position where the through hole on the platform, the installation holes of the first fixing structure and the second fixing structure are collinear and pause to complete the directional card recognition, solving the problem in the prior art that the card production line does not have the ability of directional card recognition, and the correct placement of the card position depends entirely on manual detection, resulting in low efficiency and high error rate.

[0058] Those skilled in the art can understand that the programs / software involved in the above embodiments are common methods in the prior art, and the present invention does not involve any improvement in software. The present invention only needs to connect the devices with corresponding functions through the connection relationships given in the embodiments of the present invention, and does not involve any improvement in program software. As for the connection methods between the hardware devices with corresponding functions, those skilled in the art can all implement them using the prior art and will not be described in detail here.

[0059] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A processing circuit for directional card recognition, characterized in that: The processing circuit includes a transmitting optical fiber, a receiving optical fiber, an optical fiber amplifier, a light source and a signal processing circuit, wherein the light emitted by the light source is amplified by the optical fiber amplifier and then input to the input end of the transmitting optical fiber, and the receiving optical fiber is used to receive the light emitted by the transmitting end of the transmitting optical fiber, and is amplified by the optical fiber amplifier and then input to the signal processing circuit, wherein the transmitting optical fiber and the receiving optical fiber are arranged on both sides of the card, and the transmitting end of the transmitting optical fiber and the receiving end of the receiving optical fiber are arranged opposite to each other; the signal processing circuit includes an MCU.

2. A processing circuit for directional card recognition according to claim 1, characterized in that: The signal processing circuit includes an analog-to-digital converter and a photoelectric converter, wherein the input end of the photoelectric converter is connected to the output end of the receiving optical fiber, the input end of the analog-to-digital converter is connected to the output end of the photoelectric converter, and the output end of the analog-to-digital converter is connected to the MCU.

3. A directional card recognition device based on a processing circuit for directional card recognition according to claim 1 or 2, characterized in that: The device includes a processing circuit and a fixed tooling for directional card identification, wherein the transmitting optical fiber and the receiving optical fiber are fixed on the fixed tooling, and the transmitting end of the transmitting optical fiber and the receiving end of the receiving optical fiber are arranged opposite to each other and are aligned with the card edge mark position together; the fixed tooling includes a first fixed structure and a second fixed structure.

4. A directional card recognition device according to claim 3, characterized in that: The first fixing structure and the second fixing structure are arranged in parallel, and mounting holes are correspondingly arranged at one end of the first fixing structure and the second fixing structure for fixing the receiving optical fiber and the transmitting optical fiber respectively.

5. A directional card recognition device according to claim 4, characterized in that: The transmitting optical fiber and the receiving optical fiber also include an endpoint fixing component; the transmitting optical fiber and the receiving optical fiber are respectively arranged in the mounting holes of the first fixing structure and the second fixing structure through the endpoint fixing component.

6. A directional card recognition device according to claim 5, characterized in that: The plane where the card is located is perpendicular to the line connecting the opposite ends of the transmitting optical fiber and the receiving optical fiber, and coincides with the midpoint of the line connecting the opposite ends of the transmitting optical fiber and the receiving optical fiber.

7. A directional card recognition device according to claim 6, characterized in that: The length of the connecting line between the transmitting optical fiber and the receiving optical fiber at the opposite end points is 20 mm.

8. A directional card recognition device according to claim 7, characterized in that: The device also includes a recognition result indicating device and a PLC. The MCU output end is connected to the recognition result indicating device input end and the PLC input end; the PLC outputs a processing signal.

9. A card production line, characterized in that: The card production line includes a directional card recognition device and a platform as described in any one of claims 3-8, wherein positioning strips are arranged on the edges of both sides of the platform, and the fixing tool is fixed on the positioning strips on either side, and the two fixing structures of the fixing tool are respectively located on the upper and lower sides of the platform and parallel to the platform; through holes corresponding to the mounting holes on the first fixing structure and the second fixing structure are arranged on the platform, and the center of the through hole is collinear with the center of the mounting holes on the first fixing structure and the second fixing structure.

10. A card production line according to claim 9, characterized in that: The card production line also includes two synchronous stepping conveyor belts, which are respectively located on platforms inside the positioning edge strips, and the two conveyor belts are placed in parallel.

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