Assembly line printing material high-precision direction selection device

Abstract

The utility model discloses an assembly line printing material high-precision direction selecting device which comprises a feeding bin (1), a lifting feeding device and a conveying device, the conveying device is provided with a material blocking part (2) only allowing a single row of materials to pass through, and a height limiting part (3) only allowing a single material to pass through is arranged above the discharging position of the material blocking part (2); an air nozzle (4) used for blowing materials out of the conveying device is arranged on one side of the material blocking part (2), a visual sensor (5) is arranged between the air nozzle (4) and the material blocking part (2), and a controller capable of controlling the air nozzle (4) to blow air is electrically connected to the visual sensor (5); the material blocking part (2), the height limiting part (3), the visual sensor (5) and the air tap (4) are sequentially arranged in the conveying direction of the conveying device. The direction selecting device not only can improve the direction selecting accuracy, but also has the advantages of being high in working efficiency, high in working stability, convenient to use and high in use flexibility.

Description

Technical Field

[0001] This utility model relates to a material orientation device for automated printing, and more particularly to a high-precision material orientation device for automated printing. Background Technology

[0002] When producing accessories or embellishments for clothing, bags, etc., the base material of these accessories or embellishments is injection molded with a flat back and a textured front. The textured front surface lacks specific patterns or graphics; for example, a teddy bear accessory doesn't have facial features on its base material. Therefore, automated printing equipment is needed to print the required patterns or graphics onto the front of each accessory's base material. While automated printing equipment can automatically detect the position and angle of the incoming base material compared to traditional printing equipment, and then adjust the printable patterns or graphics accordingly, allowing for precise printing without the need for neat arrangement of the base material, it still requires orientation selection for base materials with textured fronts.

[0003] Currently, orientation selection is mainly divided into two methods: manual orientation selection and detection orientation selection. Detection orientation selection makes better use of existing detection and control equipment compared to manual selection, achieving rapid orientation selection and improving work efficiency. However, in actual use, the detection equipment is prone to data errors transmitted to the control equipment due to factors such as a large number of materials passing through or materials piling up together. This can lead to some forward-moving materials being incorrectly rejected along with reverse-moving materials, or reverse-moving materials passing through directly because they are covered by forward-moving materials. Overall, the probability of incorrect orientation selection is relatively high, resulting in low accuracy. Therefore, the detection orientation selection method used in existing automated printing equipment suffers from low orientation accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision orientation device for printing materials on an assembly line. This invention has the advantage of high orientation accuracy.

[0005] The technical solution of this utility model: A high-precision orientation device for printing materials on a production line, comprising a feeding hopper for storing materials, a lifting and feeding device connected to the feeding hopper, a conveying device arranged below the material dropping position of the lifting and feeding device, a baffle for only allowing a single row of materials to pass through the conveying device, and a height limiting device for only allowing a single material to pass through the baffle above the material discharge position; an air nozzle for blowing materials out of the conveying device is arranged on one side of the baffle, a vision sensor is arranged between the air nozzle and the baffle, and a controller for controlling the air blowing from the air nozzle is electrically connected to the vision sensor; the baffle, the height limiting device, the vision sensor, and the air nozzle are arranged along... The conveying direction of the conveying device is set sequentially. By setting up a material stop and a height limiter, the material stop ensures that only a single row of materials can pass through at the material stop's discharge position. The height limiter limits the height of the passing materials, blocking materials stacked on top, so that only a single material can pass through. Ultimately, the materials passing through the material stop's discharge position are single and move along the same path. This effectively avoids the phenomenon of multiple rows of materials passing through simultaneously or multiple materials stacked through, which would cause errors in the subsequent detection and rejection of reversed materials when inspecting and screening the front and back of the materials. This improves the overall accuracy of the direction selection.

[0006] In the aforementioned high-precision orientation device for printing materials on a production line, the distance between the discharge end of the baffle and the edge of the conveying device is greater than the width of a single material but less than the width of two materials. By setting the distance between the discharge end of the baffle and the edge of the conveying device to be greater than the width of a single material but less than the width of two materials, it ensures that only a single material passes through, while also allowing the single material to pass through the discharge end of the baffle in a horizontal or vertical manner. This avoids the phenomenon of the material blocking the discharge end due to tilting or lateral movement, thus ensuring the stable operation of the orientation selection.

[0007] In the aforementioned high-precision orientation device for printing materials on a production line, a rotary motor is connected to the height limiting component, which drives the height limiting component to rotate. The rotary motor can drive the height limiting component to rotate, so that the rotating height limiting component can rotate materials exceeding the height limit to both sides, avoiding the accumulation of materials exceeding the height limit above the discharge end, which would prevent subsequent materials from moving forward, and further ensuring the stability of use.

[0008] In the aforementioned high-precision orientation device for printing materials on a production line, the rotation direction of the rotary motor is the direction that causes materials exceeding the height limit to be rotated away from the conveying device. Setting the rotation direction of the rotary motor to cause materials exceeding the height limit to be rotated away from the conveying device ensures that materials exceeding the height limit can be re-transported to the conveying device for orientation selection, and will not remain above other materials, thus ensuring the stable operation of the orientation selection.

[0009] In the aforementioned high-precision orientation device for printing materials on an assembly line, the part of the height limiting member that contacts the material is a brush structure. Setting the part of the height limiting member that contacts the material as a brush can reduce the collision or wear between the height limiting member and the material, reduce unnecessary damage to the material, and lower production costs.

[0010] In the aforementioned high-precision orientation device for printing materials on an assembly line, the brush structure is disposed on the bottom or side of the height limiting member.

[0011] In the aforementioned high-precision orientation device for printing materials on a production line, the conveying device includes a conveyor frame on which two parallel conveyor belts, a first conveyor belt and a second conveyor belt, are mounted. Both ends of the first and second conveyor belts are equipped with a drive shaft and a driven shaft, and each drive shaft is connected to a drive motor. The conveying directions of the first and second conveyor belts are opposite. A guide component for pushing materials onto the second conveyor belt is provided on the first conveyor belt, which is positioned below the material dropping position of the lifting and feeding device. The material stop, height limit component, vision sensor, and air nozzle are all mounted on the second conveyor belt. When multiple materials on the second conveyor belt simultaneously pass the material stop... The material stop allows only one material to pass along the second conveyor belt at a time, while pushing multiple materials onto the first conveyor belt. By using the first and second conveyor belts arranged side by side, the lateral path of the entire conveying device can be reduced, thus reducing the floor space. By providing a gap between the guide and the edge of the first conveyor belt, and by placing the feed bin directly below the output end of the first conveyor belt and the input end of the second conveyor belt, materials located at the edge that cannot be moved onto the second conveyor belt by the guide will return to the feed bin for collection. This eliminates the need for manual collection and sorting, making it convenient to use and preventing unnecessary damage to the materials.

[0012] In the aforementioned high-precision orientation device for printing materials on a production line, a material baffle is provided on the first conveyor belt at the position corresponding to the air nozzle; a gap is provided between the side of the guide member away from the second conveyor belt and the edge of the first conveyor belt; the feeding bin is located directly below the output end of the first conveyor belt; by providing a material baffle on the first conveyor belt, the material baffle can be used to blow the material back onto the first conveyor belt from the air nozzle and perform the feeding operation again.

[0013] In the aforementioned high-precision orientation device for printing materials on a production line, the lifting and feeding device includes a lifting frame with an inclined lifting conveyor belt. Multiple evenly distributed baffles are arranged on the surface of the lifting conveyor belt. A lifting drive shaft and a lifting driven shaft are respectively arranged at both ends of the lifting conveyor belt, and a lifting motor is connected to the end of the lifting drive shaft. A receiving hopper is located directly below the material drop position of the lifting conveyor belt, and an inclined discharge channel is provided at the bottom end of the receiving hopper. The first conveyor belt is located below the discharge port of the discharge channel, and a baffle to prevent material from falling out is provided on the top surface of the discharge channel.

[0014] In the aforementioned high-precision orientation device for printing materials on a production line, the conveyor frame is equipped with a lifting servo motor for adjusting the height of the height limiter. A ball screw is connected to the lifting servo motor, and a lifting seat for installing the height limiter is slidably mounted on the ball screw. The conveyor frame is equipped with a first adjusting seat for adjusting the distance between the discharge end of the material stop and the edge of the second conveyor belt. A translation ball screw is installed on the first adjusting seat. A translation servo motor is connected to the end of the translation ball screw, and a translation seat for installing the material stop is slidably connected to the translation ball screw. A second adjusting seat is provided on one side of the first adjusting seat for adjusting the distance between the discharge end of the guide and the edge of the first conveyor belt.

[0015] Compared with existing technologies, this invention improves upon existing material selection devices for automated printing lines. By incorporating a baffle and a height limiter on the conveyor, when numerous scattered materials move towards the baffle's outlet position, the baffle causes them to gather together. The height limiter then restricts the passage of materials, preventing stacked materials from passing through and ensuring only single pieces pass. Ultimately, each piece passing the baffle's outlet follows a single, identical path, facilitating subsequent inspection and screening of the material's front and back sides. This system effectively avoids errors in subsequent detection and removal of reversed materials caused by multiple rows of materials passing through simultaneously or multiple materials stacked together, thus improving the overall accuracy of orientation selection. By setting up vision sensors, controllers, and air nozzles, the vision sensors first photograph the passing materials during orientation selection, and then transmit the photos to the controller. The controller then determines the front or back of the passing materials and controls whether to activate the air nozzles to push the flipped materials out of the conveyor, achieving automated orientation selection and improving work efficiency. At the same time, by setting up a lifting and feeding device, the materials in the feed hopper can be automatically transported to the conveyor for orientation selection, eliminating the need for manual feeding and further improving work efficiency.

[0016] Furthermore, this invention sets the distance between the discharge end of the baffle and the edge of the conveying device to be greater than the width of a single material but less than the width of two materials. This ensures that only a single material can pass through, while also allowing the material to pass through the discharge end of the baffle in a horizontal or vertical manner. This prevents the material from blocking the discharge end due to tilting or lateral movement, ensuring stable operation of the direction selection process. A rotary motor is connected to the top surface of the height limiting component, which rotates the height limiting component. This rotation causes materials exceeding the height limit to be displaced to both sides, preventing them from accumulating above the discharge end and hindering the movement of subsequent materials. The system's design further ensures operational stability. By setting the rotation direction of the rotary motor to deflect materials exceeding the height limit away from the conveyor, these materials can be re-conveyed onto the conveyor for orientation selection, preventing them from remaining above other materials and ensuring stable orientation. Using a brush as the contact point between the height limiter and the material reduces collisions and wear, minimizing unnecessary material damage and lowering production costs. The system employs two parallel conveyor belts (first and second) with opposite conveying directions, along with a guide to guide and push materials from the first belt onto the second belt. This design reduces the overall length of the conveyor system, thus decreasing its footprint. By limiting the distance between the first and second conveyor belts, when multiple materials pass the stop on the second conveyor belt simultaneously, only one material is allowed to pass at a time. The stop pushes multiple materials onto the first conveyor belt, while the height limiter rotates materials exceeding the height limit back onto the first conveyor belt. This allows the pushed-out materials to automatically return to the second conveyor belt and stop via the first and guide belts for single-row, single-column limiting operation, eliminating the need for manual collection and loading, thus improving efficiency. Furthermore, by installing material baffles on the first conveyor belt, the materials blown back by the air nozzles can be controlled. The material is fed onto a conveyor belt and reloaded. By creating a gap between the guide and the edge of the first conveyor belt, and positioning the feed hopper directly below the output end of the first conveyor belt and the input end of the second conveyor belt, material located at the edge that cannot be moved to the second conveyor belt by the guide will return to the feed hopper for collection. This eliminates the need for manual collection and sorting, simplifying use and preventing unnecessary damage to the material. Multiple evenly distributed baffles are installed on the lifting conveyor belt. These baffles work in conjunction with the lifting conveyor belt to lift the material in the feed hopper and accumulate it in the receiving hopper. The material is then transported to the first conveyor belt through the discharge channel, achieving automatic feeding.By setting a lifting servo motor to drive the height limiting component to move up and down, the vertical distance between the height limiting component and the second conveyor belt can be adjusted. Combined with the first adjusting seat, the distance between the discharge end of the material stop and the edge of the second conveyor belt can be adjusted, allowing the width and height of the material stop's discharge position to be adjusted according to different material sizes, improving operational flexibility. Furthermore, the second adjusting seat can adjust the distance between the discharge end of the guide component and the edge of the first conveyor belt, thereby adjusting the guide component's position on the second conveyor belt, further improving operational flexibility. Therefore, this invention not only improves the accuracy of direction selection but also has the advantages of high working efficiency, high working stability, ease of use, and high operational flexibility. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a top view of the present invention;

[0019] Figure 3 yes Figure 1 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the transmission device.

[0021] The labels in the attached diagram are as follows: 1-feed hopper, 2-material stop, 3-height limiter, 4-air nozzle, 5-vision sensor, 6-rotary motor, 7-first conveyor belt, 8-second conveyor belt, 9-guide, 11-material baffle, 12-lifting frame, 13-lifting conveyor belt, 14-partition, 15-receiving hopper, 16-lifting servo motor. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0023] Example. A high-precision orientation device for printing materials on an assembly line, configured as follows: Figures 1 to 4The vegetarian food includes a feeding hopper 1 for storing materials, a lifting and feeding device connected to the feeding hopper 1, and a conveying device located below the material dropping position of the lifting and feeding device. The conveying device is characterized by having a baffle 2 for single-row material passage, and a height limiting device 3 for single-item material passage located above the discharge position of the baffle 2. An air nozzle 4 for blowing material out of the conveying device is located on one side of the baffle 2. A vision sensor 5 is located between the air nozzle 4 and the baffle 2, and the vision sensor 5 is electrically connected to a controller capable of controlling the air blowing from the air nozzle 4. The baffle 2, height limiting device 3, vision sensor 5, and air nozzle 4 are arranged sequentially along the conveying direction of the conveying device.

[0024] The distance between the discharge end of the baffle 2 and the edge of the conveying device is greater than the width of a single material but less than the width of two materials; a rotary motor 6 is connected to the height limiting component 3, which drives the height limiting component 3 to rotate; the rotation direction of the rotary motor 6 is the direction that will cause materials exceeding the height limit to be rotated away from the conveying device; the part of the height limiting component 3 that contacts the material is a brush structure; the brush structure is set on the bottom or side of the height limiting component 3; the conveying device includes a conveying frame, on which two parallel first conveyor belts 7 and second conveyor belts 8 are installed. Both ends of the first conveyor belts 7 and second conveyor belts 8 are provided with a drive shaft and a driven shaft, and each drive shaft is connected to... The first conveyor belt 7 and the second conveyor belt 8 are driven by a motor and have opposite conveying directions. The first conveyor belt 7 is equipped with a guide 9 for pushing materials onto the second conveyor belt 8. The first conveyor belt 7 is positioned below the material dropping position of the lifting and feeding device. The material stop 2, height limiter 3, vision sensor 5, and air nozzle 4 are all mounted on the second conveyor belt 8. When multiple materials pass the material stop 2 simultaneously on the second conveyor belt 8, the material stop 2 allows only one material to pass along the second conveyor belt 8 at a time, pushing more than one material onto the first conveyor belt 7. A material baffle 11 is located on the first conveyor belt 7 at a position corresponding to the air nozzle 4. The guide 9 is positioned away from the second conveyor belt. A gap is provided between one side of conveyor belt 8 and the edge of the first conveyor belt 7; the feeding bin 1 is located directly below the output end of the first conveyor belt 7; the lifting and feeding device includes a lifting frame 12, on which an inclined lifting conveyor belt 13 is provided; multiple evenly distributed partitions 14 are provided on the surface of the lifting conveyor belt 13, and a lifting drive shaft and a lifting driven shaft are respectively provided at both ends of the lifting conveyor belt 13, with a lifting motor connected to the end of the lifting drive shaft; a receiving hopper 15 is located directly below the material dropping position of the lifting conveyor belt 13, and an inclined discharge channel is provided at the bottom end of the receiving hopper 15; the first conveyor belt 7 is located below the discharge port of the discharge channel, and the top surface of the discharge channel... A baffle is provided to prevent materials from falling out; a lifting servo motor 16 for adjusting the height of the height limiter 3 is provided on the conveyor frame, a ball screw is connected to the lifting servo motor 16, and a lifting seat for installing the height limiter 3 is slidably installed on the ball screw; a first adjusting seat for adjusting the distance between the discharge end of the stopper 2 and the edge of the second conveyor belt 8 is provided on the conveyor frame, and a translation ball screw is provided on the first adjusting seat; a translation servo motor is connected to the end of the translation ball screw, and a translation seat for installing the stopper 2 is slidably connected on the translation ball screw; a second adjusting seat for adjusting the distance between the discharge end of the guide 9 and the edge of the first conveyor belt 7 is provided on one side of the first adjusting seat.

[0025] Working Principle: Before operation, the entire device needs to be connected to an external safe mains power supply to power on the vision sensor 5 and the rotary motor 6 (the vision sensor 5 in this invention can be a camera, specifically MV-CU013-A0GC; the controller used in this invention can be a programmable controller such as AFMC_V1.3, FX2C-20MRD, or Cortex-R8). After the rotary motor 6 is powered on, it will drive the height limiter 3 to rotate, and pour the material to be oriented into the feed hopper 1, completing the preparation work. During the actual orientation selection, the lifting motor is first started. After starting, the lifting motor will drive the lifting drive shaft to rotate, which in turn drives the lifting conveyor belt 13 to move. During the movement of the lifting conveyor belt 13, the driven lifting shaft will rotate. This causes the lifting conveyor belt 13 to move in a cyclical manner. Because the entire lifting conveyor belt 13 is inclined, and multiple evenly distributed partitions 14 are provided on the lifting conveyor belt 13, and one end of the lifting conveyor belt 13 is located in the feed hopper 1, when the lifting conveyor belt 13 moves upward together with the partitions 14, the partitions 14 will lift the material in the feed hopper 1 and move it between the partitions 14 and the lifting conveyor belt 13, thus realizing the lifting of the material. As the lifting conveyor belt 13 continues to move upward, the material will be moved above the receiving hopper 15. At this time, as the conveyor belt 13 continues to move, the conveyor belt 13 will change from upward movement to downward movement, so that the material between the partitions 14 and the lifting conveyor belt 13 is poured into the receiving hopper 15. The material will then flow to the first conveyor belt 7 through the discharge channel on the receiving hopper 15, completing the lifting and feeding work.

[0026] After the material is conveyed onto the first conveyor belt 7, the drive motors connected to the first conveyor belt 7 and the second conveyor belt 8 are started. The drive motors then drive their corresponding drive shafts to rotate. The rotation of these drive shafts, in turn, drives the first conveyor belt 7 and the second conveyor belt 8 to rotate. This rotation, in turn, drives their corresponding driven shafts to rotate, ultimately enabling the first conveyor belt 7 and the second conveyor belt 8 to move in a cyclical manner. As the first conveyor belt 7 moves, it carries the material that has fallen onto it towards the guide member 9. When the material reaches the position of the guide member 9, it... Because the guide 9 is inclined and its two ends are respectively located on the first conveyor belt 7 and the second conveyor belt 8, when the material comes into contact with the guide 9, the material entering the guide 9 on the side closer to the second conveyor belt 8 will be moved towards the second conveyor belt 8 under the action of the guide 9, and finally move from the first conveyor belt 7 to the second conveyor belt 8 (that is, from the output end of the first conveyor belt 7 to the input end of the second conveyor belt 8). At the same time, because the feed bin 1 is located directly below the output end of the first conveyor belt 7, some of the material that has moved to the side of the guide 9 away from the second conveyor belt 8 will return to the feed bin 1 along the first conveyor belt 7 for re-feeding.

[0027] When the material moves onto the second conveyor belt 8 under the action of the guide 9, the moving second conveyor belt 8 will drive the material towards the stop 2. Under the combined action of the guide 2 and the conveying action of the second conveyor belt 8, the material will move to the discharge position of the stop 2. Because there is only a gap between the discharge position of the stop 2 and the edge of the second conveyor belt 8, which is between the width of a single material and the width of two materials, only a single row of materials can pass through this gap. When multiple rows of materials pass through this gap, the materials exceeding a single row will be pushed onto the first conveyor belt 7 on one side for re-loading and reorientation. At the same time, when a single row of materials passes through the discharge position of the stop 2, the height limiter 3 above the discharge position will block the materials piled up above, ultimately achieving the goal of one material at a time passing through the discharge position of the stop 2. The material position moves sequentially towards the vision sensor 5. When the height limiting component 3 is working, the rotary motor 6 starts and drives the height limiting component 3 to rotate. In addition, the surface of the height limiting component 3 that contacts the material is a brush, which allows the rotating height limiting component 3 to push the material above to one side. In addition, by limiting the rotation direction of the rotary motor 6, the rotation of the height limiting component 3 can rotate the material from the second conveyor belt 8 onto the first conveyor belt 7 for re-loading and orientation selection. With the cooperation of the material blocking component 2 and the height limiting component 3, the material moves one by one to the area below the vision sensor for material orientation determination. This avoids the phenomenon of multiple rows of material passing through the vision sensor at the same time or multiple materials being stacked, which would cause errors in material orientation determination and ensure the accuracy of subsequent orientation selection.

[0028] When a single piece of material passes through the stop 2, it moves along the second conveyor belt 8 to directly below the vision sensor 5. As the material passes directly below the vision sensor 5, the sensor takes a picture of the top surface of the material and transmits the image to the external controller. Upon receiving the image data, the controller uses an internally set image determination formula to determine whether the material is facing up or down (the front of the material has different protrusions or convexities, while the back is flat). If the material is facing up, the controller does not activate the air nozzle 4, allowing the material to pass directly through the air nozzle 4 to the output end of the second conveyor belt 8 and move to the next station. However, if the material is facing down, the controller activates the air nozzle 4 after a certain time (exactly the distance the material travels from the vision sensor 5 to the air nozzle 4), using the air nozzle 4 to blow the material off the second conveyor belt 8 onto the first conveyor belt 7 for re-loading and reorientation. The entire reorientation process is then complete.

[0029] When the height or width of the material requiring orientation changes, the distance between the bottom surface of the height limiting component 3 and the top surface of the second conveyor belt 8 needs to be adjusted, or the distance between the stop component 2 and the edge of the second conveyor belt 8 needs to be adjusted. After adjusting the distance between the bottom surface of the height limiting component 3 and the top surface of the second conveyor belt 8, it is only necessary to start the lifting servo motor 16. After the lifting servo motor 16 starts, it will drive the ball screw to rotate. After the ball screw rotates, it will drive the lifting seat to move up or down. During the process of the lifting seat moving up or down, it will... The moving height limiter 3 and the rotary motor 6 move up and down together to accommodate the passage of individual materials of different heights. When the distance between the stopper 2 and the edge of the second conveyor belt 8 is adjusted, the translation servo motor is started. After the translation servo motor starts, it drives the translation ball screw to rotate. After the translation ball screw rotates, it drives the translation seat to move in a direction perpendicular to the moving direction of the second conveyor belt 8. During the movement of the translation seat, the stopper 2 moves together, thereby adjusting the distance between the stopper 2 and the edge of the second conveyor belt 8.

Claims

1. A high-precision orientation device for printing materials on a production line, comprising a feeding hopper (1) for storing materials, a lifting and feeding device connected to the feeding hopper (1), and a conveying device disposed below the material dropping position of the lifting and feeding device, characterized in that: The conveying device is provided with a baffle (2) for only one row of materials to pass through, and a height limiting member (3) for only one material to pass through is provided above the discharge position of the baffle (2); a nozzle (4) for blowing the material out of the conveying device is provided on one side of the baffle (2), and a vision sensor (5) is provided between the nozzle (4) and the baffle (2), and a controller that can control the air blowing of the nozzle (4) is electrically connected to the vision sensor (5); the baffle (2), the height limiting member (3), the vision sensor (5) and the nozzle (4) are arranged in sequence along the conveying direction of the conveying device.

2. The high-precision orientation device for automated printing materials according to claim 1, characterized in that: The distance between the discharge end of the baffle (2) and the edge of the conveying device is greater than the width of a single material but less than the width of two materials.

3. The high-precision orientation device for automated printing materials according to claim 1, characterized in that: A rotary motor (6) is connected to the height limiting member (3), and the rotary motor (6) drives the height limiting member (3) to rotate.

4. The high-precision orientation device for automated printing materials according to claim 3, characterized in that: The rotation direction of the rotary motor (6) is the direction in which materials exceeding the height limit are rotated away from the conveying device.

5. The high-precision orientation device for automated printing materials according to claim 1, characterized in that: The part of the height limiting member (3) that contacts the material is a brush structure.

6. The high-precision orientation device for automated printing materials according to claim 5, characterized in that: The brush structure is set on the bottom or side of the height limiting member (3).

7. A high-precision orientation device for automated printing materials according to any one of claims 1 to 6, characterized in that: The conveying device includes a conveyor frame on which two parallel first conveyor belts (7) and second conveyor belts (8) are installed. Both ends of the first conveyor belts (7) and second conveyor belts (8) are provided with a drive shaft and a driven shaft. Each drive shaft is connected to a drive motor. The conveying directions of the first conveyor belts (7) and the second conveyor belts (8) are opposite. The first conveyor belts (7) are provided with guides (9) for pushing materials onto the second conveyor belts (8). The first conveyor belts (7) are located below the material dropping position of the lifting and feeding device. The material stop (2), height limiter (3), vision sensor (5), and air nozzle (4) are all located on the second conveyor belts (8). When multiple materials pass through the material stop (2) on the second conveyor belts (8) at the same time, the material stop (2) allows only one material to pass along the second conveyor belts (8). The material stop (2) pushes more than one material onto the first conveyor belts (7).

8. The high-precision orientation device for automated printing materials according to claim 7, characterized in that: A material baffle (11) is provided on the first conveyor belt (7) at the position corresponding to the air nozzle (4); a gap is provided between the side of the guide member (9) away from the second conveyor belt (8) and the edge of the first conveyor belt (7); the feed bin (1) is located directly below the output end of the first conveyor belt (7).

9. A high-precision orientation device for automated printing materials according to claim 7, characterized in that: The lifting and feeding device includes a lifting frame (12), on which an inclined lifting conveyor belt (13) is provided; multiple evenly distributed partitions (14) are provided on the surface of the lifting conveyor belt (13), and a lifting drive shaft and a lifting driven shaft are respectively provided at both ends of the lifting conveyor belt (13), and a lifting motor is connected to the end of the lifting drive shaft; a receiving hopper (15) is provided directly below the material dropping position of the lifting conveyor belt (13), and an inclined discharge channel is provided at the bottom end of the receiving hopper (15); the first conveyor belt (7) is located below the discharge port of the discharge channel, and a baffle to prevent material from falling out is provided on the top surface of the discharge channel.

10. A high-precision orientation device for automated printing materials according to claim 7, characterized in that: The conveyor frame is equipped with a lifting servo motor (16) for adjusting the height of the height limiter (3). A ball screw is connected to the lifting servo motor (16), and a lifting seat for installing the height limiter (3) is slidably installed on the ball screw. The conveyor frame is equipped with a first adjusting seat for adjusting the distance between the discharge end of the stopper (2) and the edge of the second conveyor belt (8). A translation ball screw is provided on the first adjusting seat. A translation servo motor is connected to the end of the translation ball screw, and a translation seat for installing the stopper (2) is slidably connected on the translation ball screw. A second adjusting seat for adjusting the distance between the discharge end of the guide (9) and the edge of the first conveyor belt (7) is provided on one side of the first adjusting seat.

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