Visual punching machine

Abstract

The utility model belongs to the technical field of punching machines, and particularly relates to a visual punching machine which comprises a feeding mechanism, a machining mechanism and a discharging mechanism which are sequentially arranged, the feeding mechanism comprises a feeding conveying belt, a mechanical arm is arranged above the feeding conveying belt, and a camera is arranged above the mechanical arm; the machining mechanism comprises a hydraulic machine, the discharging mechanism comprises a discharging conveying belt, and an X module and a Y module are arranged above the discharging conveying belt. The laser cutting device is used for carrying out hollow punching on finished paper boxes or paperboards, the efficiency is higher than that of traditional laser cutting, and no matter how many complex patterns exist, the patterns can be completed within several seconds; the precision and the efficiency of product processing are greatly improved, three-dimensional box types and thicker paper can be processed, edge positioning is not needed, limitation of the product outline is avoided, and the effect which cannot be achieved by a traditional process is achieved due to the fact that the processed paper is thicker, the embossing effect is better and more three-dimensional, and the paper has higher strength; and automatic feeding, automatic punching and automatic discharging are achieved, and safety and convenience are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of stamping machine technology, and in particular to a vision stamping machine. Background Technology

[0002] Die-cutting machines can punch, emboss, and hot stamp products, but they rely on the paper edges for positioning during printing. This not only results in significant positional errors but also prevents the processing of three-dimensional boxes. The processing speed is also relatively slow, and most of these machines require manual operation, leading to poor safety. For existing paper boxes or cardboard products requiring cutouts, laser cutting is generally used. However, cutting complex designs takes a long time and is extremely inefficient. Furthermore, manual positioning and material placement, as well as processing and unloading, are necessary, posing safety hazards and reducing efficiency. Summary of the Invention

[0003] To overcome the shortcomings of the existing technology, this utility model proposes a vision-based stamping machine, which is more efficient than traditional laser cutting. No matter how complex the pattern, it can be completed in just a few seconds. Furthermore, it features automatic feeding, automatic stamping, and automatic unloading, making it safer and more convenient. The technical problem to be solved by this utility model is achieved through the following technical solution:

[0004] A vision-based stamping machine includes a feeding mechanism, a processing mechanism, and a discharging mechanism arranged in sequence. The feeding mechanism includes a feeding conveyor belt, a robot arm is arranged above the feeding conveyor belt, and a camera is arranged above the robot arm. The processing mechanism includes a hydraulic press, and the discharging mechanism includes a discharging conveyor belt, with an X module and a Y module arranged above the discharging conveyor belt.

[0005] Furthermore, the camera is fixedly connected by a clamp, which is fixedly connected to the frame by a crossbar.

[0006] Furthermore, the hydraulic press is a three-plate four-column hydraulic press, including an upper plate, a middle plate and a lower plate. The upper plate and the lower plate are fixed plates. A hydraulic cylinder is set above the upper plate. The middle plate is connected to the telescopic shaft of the hydraulic cylinder. The four corners of the middle plate are slidably connected to four guide columns respectively. A mold is set on the lower plate, and several suction cups are set on the mold.

[0007] Furthermore, the X module includes two X guide rails, with at least one X slider on each X guide rail. The X sliders are fixedly connected by a first connecting plate. A timing belt is provided between the two X guide rails and is fixedly connected to the first connecting plate. The Y module is fixedly connected to the first connecting plate and includes two Y guide rails. At least one Y slider is provided on each Y guide rail and is fixedly connected by a second connecting plate. A lead screw is provided between the two Y guide rails, and the lead screw is equipped with a nut. The nut is fixedly connected to the second connecting plate, and the second connecting plate is fixedly connected to the first suction cup frame.

[0008] Specifically, the synchronous belt is driven by the first servo motor, and the lead screw is driven by the second servo motor.

[0009] Specifically, the robotic arm is a four-axis robotic arm, with a second suction cup frame installed at the end of the robotic arm, and the robotic arm is fixedly connected to the second suction cup frame through a third connecting plate.

[0010] Specifically, the suction cup frame includes two parallel aluminum profiles, with several suction cup mounting plates on the aluminum profiles. One end of the suction cup mounting plate is fixedly connected to the suction cup, and the other end of the suction cup mounting plate is provided with an elongated hole. The suction cup mounting plate is fixedly connected to the aluminum profile by screws passing through the elongated hole.

[0011] Even better, a sensor is installed at the end of the feeding conveyor belt, and the sensor is fixed to a universal joint, which is fixedly connected to a bracket on one side of the feeding conveyor belt.

[0012] Even better, the robotic arm, X-module, and frame are fixedly connected, the feeding conveyor belt is driven by the third servo motor, and the unloading conveyor belt is driven by the fourth servo motor.

[0013] Even better, it also includes an automatic control system, which is connected to the robotic arm, the first servo motor, the second servo motor, the third servo motor, the fourth servo motor, and the sensors.

[0014] This invention performs perforation and punching on finished paper boxes or cardboard, which is more efficient than traditional laser cutting. No matter how complex the pattern, it can be completed in a few seconds. It greatly improves the precision and efficiency of product processing, and can process three-dimensional boxes and thicker paper. It does not require edge positioning and is not limited by the product outline. Because the processed paper is thicker, the embossing effect is better, more three-dimensional, and has higher strength, which is an effect that traditional processes cannot achieve. In addition, it is safer and more convenient with automatic feeding, automatic punching, and automatic unloading. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 Top view;

[0017] Figure 3 for Figure 1 Enlarged view of part A;

[0018] Figure 4 This is a schematic diagram of the structure of a hydraulic press;

[0019] Figure 5 This is a schematic diagram of the XY module structure;

[0020] Figure 6 This is a schematic diagram of the suction cup holder structure;

[0021] Figure 7 This is a schematic diagram of the sensor connection. Detailed Implementation

[0022] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A top view. (e.g.) Figure 1 and Figure 2 As shown, a vision stamping machine includes a feeding mechanism, a processing mechanism, and a discharging mechanism arranged in sequence. The feeding mechanism and the discharging mechanism are respectively located on the left and right sides of the processing mechanism. The feeding mechanism includes a feeding conveyor belt 1, a robot arm 2 is arranged above the feeding conveyor belt 1, and a camera 3 is arranged above the robot arm 2. The processing mechanism includes a hydraulic press 4, and the discharging mechanism includes a discharging conveyor belt 5, with an X module and a Y module arranged above the discharging conveyor belt 5.

[0023] Figure 3 for Figure 1 Enlarged view of part A, as shown Figure 3 As shown, the camera 3 is fixedly connected by the clamp 6, and the clamp 6 is fixedly connected to the frame 8 by the crossbar 7. The position of the camera 3 can be adjusted by the clamp 6. Once adjusted, it does not need to be moved. In this embodiment, the crossbar 7 is an aluminum profile. The clamp 6 can slide on the groove of the aluminum profile to change its position. After adjusting the position, the camera 3 can be fixed by tightening the clamp 6 with screws.

[0024] Figure 4 This is a schematic diagram of the structure of a hydraulic press, such as... Figure 4 As shown, the hydraulic press 4 is a three-plate four-column hydraulic press, including an upper plate 4.1, a middle plate 4.2 and a lower plate 4.3. The upper plate 4.1 and the lower plate 4.3 are fixed plates. A hydraulic cylinder 4.4 is set above the upper plate 4.1. The middle plate 4.2 is connected to the telescopic shaft of the hydraulic cylinder 4.4. The four corners of the middle plate 4.2 are slidably connected to four guide columns 4.5 respectively. A mold 4.6 is set on the lower plate 4.3, and several suction cups 9 are set on the mold 4.6.

[0025] Figure 5 This is a schematic diagram of the XY module, as shown below. Figure 5As shown, the X module includes two X guide rails 10, with at least one X slider 11 mounted on each X guide rail 10. The X slider 11 is fixedly connected via a first connecting plate 12. A timing belt 13 is positioned between the two X guide rails 10 and is fixedly connected to the first connecting plate 12. The Y module is fixedly connected to the first connecting plate 12 and includes two Y guide rails 14. At least one Y slider 15 is mounted on each Y guide rail 14 and is fixedly connected via a second connecting plate 16. A lead screw 17 is positioned between the two Y guide rails 14, and the lead screw 17 has a nut fixedly connected to the second connecting plate 16. The second connecting plate 16 is fixedly connected to the first suction cup frame 18. In this embodiment, the second connecting plate 16 is fixedly connected to the support frame 19, the support frame 19 is fixedly connected to the support rod 20, and the support rod 20 is fixedly connected to the first suction cup frame 18. The synchronous belt 13 is driven by the first servo motor 30, and the lead screw 17 is driven by the second servo motor 31. The first servo motor 30 drives the synchronous belt 13 to drive the first connecting plate 12 to move horizontally. The second servo motor 31 rotates the lead screw 17 to make the nut slide on the lead screw 17. The nut drives the second connecting plate 16 to move up and down. The first suction cup frame 18 picks up the product from the processing area to the unloading area.

[0026] The robotic arm 2 is a four-axis robotic arm that can move in the XYZR directions. XY represents the two horizontal directions, Z represents the vertical direction, and R represents the rotation direction. A second suction cup frame 21 is set at the end of the robotic arm 2, and the robotic arm 2 is fixedly connected to the second suction cup frame 21 through a third connecting plate 22.

[0027] Figure 6 This is a schematic diagram of the suction cup holder structure, such as... Figure 6 As shown, the suction cup frame includes two parallel aluminum profiles 23. Several suction cup mounting plates 24 are provided on the aluminum profiles 23. One end of the suction cup mounting plate 24 is fixedly connected to the suction cup 9, and the other end of the suction cup mounting plate 24 is provided with an elongated hole 24.1. The suction cup mounting plate 24 is fixedly connected to the aluminum profile 23 by screws passing through the elongated hole 24.1. The position of the suction cup 9 can be adjusted through the elongated hole 24.1 to adapt to products of different sizes. In this embodiment, one suction cup mounting plate 24 is provided on each of the two aluminum profiles of the first suction cup frame 18, and three suction cup mounting plates 24 are provided on each of the two aluminum profiles of the second suction cup frame 21. In this embodiment, all suction cups 9 are connected to a vacuum pump through an air pipe 29. A solenoid valve (not shown in the figure) is provided on the air pipe 29. The suction and release of the suction cup 9 are achieved by controlling the vacuum through the solenoid valve.

[0028] Figure 7 This is a schematic diagram of the sensor connection, such as... Figure 7As shown, a sensor 25 is installed at the end of the feeding conveyor belt 1. The sensor 25 is fixed on the universal rod 26. The universal rod 26 is fixedly connected to the bracket 1.1 on one side of the feeding conveyor belt 1. When the sensor 25 senses the product, the conveyor belt stops conveying. When the robot arm 2 takes away the product, the sensor 25 no longer senses the product, and the conveyor belt starts again.

[0029] This invention can also employ other feeding methods, such as a lifting platform, to transport a whole stack of cardboard. The robotic arm picks up the top cardboard each time. The lifting platform is also equipped with a sensor, which is set at the position of the top cardboard. As long as the cardboard is taken away and the sensor can no longer detect the product, the platform will rise until the sensor detects the product.

[0030] The robotic arm 2 and the X module are fixedly connected to the frame 8. The feeding conveyor belt 1 is driven by the third servo motor 27, and the unloading conveyor belt 5 is driven by the fourth servo motor 28. The third servo motor 27 and the fourth servo motor 28 can also be replaced by stepper motors. It also includes an automatic control system, which is connected to the robotic arm 2, the first servo motor 30, the second servo motor 31, the third servo motor 27, the fourth servo motor 28, and the sensor 25.

[0031] When processing three-dimensional boxes, this utility model requires the creation of a mold that matches the cardboard box. The mold is set to be at least 3mm smaller than the internal dimensions of the cardboard box. During processing, the box is placed on the mold, and the box is positioned by suction cups on the mold. This utility model achieves automated stamping through the interaction of robotic arms and vision signals, eliminating the need for manual operation of the hydraulic press.

[0032] The working process of this utility model is as follows: The product, such as a mooncake box lid with a pattern, enters the feeding conveyor belt 1 through the previous process. When the product is delivered to the bottom of the robot arm 2, the sensor 25 detects the product and the feeding conveyor belt 1 stops. The robot arm 2 picks up the product through the suction cup 9 of the second suction cup frame 21 and moves it to a set height. The camera 3 takes pictures of the pattern on the product to locate it, thereby obtaining the real coordinates of the product. Then the robot arm places the product in the processing area of ​​the hydraulic press. After the suction cup 9 on the mold picks up the product, the robot arm 2 returns. Then the hydraulic press performs stamping processing. The X module stays on the outside of the hydraulic press. After the stamping is completed, the X module moves into the processing area to pick up the material. The Y module picks up the product using the suction cup 9 of the first suction cup frame 18 and moves it to the unloading conveyor belt 5 through the X module, and puts the product on the unloading conveyor belt 5 so that it can enter the next process.

[0033] The loading area can accommodate multiple products side by side, the robotic arm 2 can also pick up multiple products at the same time, the processing area can also be equipped with multiple molds to process multiple products at the same time, and the unloading mechanism can unload multiple products at the same time, which can multiply the production efficiency.

[0034] In summary, this invention enables high-efficiency die-cutting of finished paper boxes or cardboard compared to traditional laser cutting. No matter how complex the pattern, it can be completed in just a few seconds. It greatly improves the precision and efficiency of product processing, and can process three-dimensional boxes and thicker paper without the need for edge positioning or product outline limitations. Due to the thicker paper being processed, the embossing effect is better, more three-dimensional, and has higher strength, which is an effect that traditional processes cannot achieve. Furthermore, it features automatic feeding, automatic punching, and automatic unloading, making it safer and more convenient.

Claims

1. A vision punching machine, characterized in that, The device includes a loading mechanism, a processing mechanism, and a unloading mechanism arranged in sequence. The loading mechanism includes a loading conveyor belt, a robotic arm is mounted above the loading conveyor belt, and a camera is mounted above the robotic arm. The processing mechanism includes a hydraulic press, and the unloading mechanism includes an unloading conveyor belt, with an X module and a Y module mounted above the unloading conveyor belt.

2. The vision stamping machine according to claim 1, characterized in that, The camera is fixedly connected by a clamp, and the clamp is fixedly connected to the frame by a crossbar.

3. The vision stamping machine according to claim 1, characterized in that, The hydraulic press is a three-plate four-column hydraulic press, including an upper plate, a middle plate and a lower plate. The upper plate and the lower plate are fixed plates. A hydraulic cylinder is set above the upper plate. The middle plate is connected to the telescopic shaft of the hydraulic cylinder. The four corners of the middle plate are slidably connected to four guide columns respectively. A mold is set on the lower plate. Several suction cups are set on the mold.

4. The vision stamping machine according to claim 1, characterized in that, The X module includes two X guide rails, and at least one X slider is provided on each X guide rail. The X slider is fixedly connected by a first connecting plate. A timing belt is provided between the two X guide rails, and the timing belt is fixedly connected to the first connecting plate. The Y module is fixedly connected to the first connecting plate. The Y module includes two Y guide rails, and at least one Y slider is provided on each Y guide rail. The Y slider is fixedly connected through the second connecting plate. A lead screw is provided between the two Y guide rails. The lead screw is provided with a nut. The nut is fixedly connected to the second connecting plate. The second connecting plate is fixedly connected to the first suction cup frame.

5. The vision stamping machine according to claim 4, characterized in that, The synchronous belt is driven by a first servo motor, and the lead screw is driven by a second servo motor.

6. The vision stamping machine according to claim 1, characterized in that, The robotic arm is a four-axis robotic arm, with a second suction cup frame installed at the end of the robotic arm. The robotic arm is fixedly connected to the second suction cup frame via a third connecting plate.

7. The vision punching machine according to claim 4 or 6, characterized in that, The suction cup frame includes two parallel aluminum profiles, and several suction cup mounting plates are provided on the aluminum profiles. One end of each suction cup mounting plate is fixedly connected to a suction cup, and an elongated hole is provided at the other end of the suction cup mounting plate. The suction cup mounting plate is fixedly connected to the aluminum profile by screws passing through the elongated hole.

8. The vision stamping machine according to claim 1, characterized in that, A sensor is installed at the end of the feeding conveyor belt, and the sensor is fixed on a universal rod, which is fixedly connected to a bracket on one side of the feeding conveyor belt.

9. The vision punching machine according to claim 1, characterized in that, The robotic arm and X module are fixedly connected to the frame. The feeding conveyor belt is driven by a third servo motor, and the unloading conveyor belt is driven by a fourth servo motor.

10. The vision stamping machine according to claim 1, characterized in that, It also includes an automatic control system, which is connected to the robotic arm, the first servo motor, the second servo motor, the third servo motor, the fourth servo motor, and the sensors.

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