Automatic stacking device for laser cutting machine

Abstract

The utility model discloses a kind of automatic stacking devices of laser cutting machine, including rack, upper layer belt line, middle layer belt line, exchange platform and stacking platform, the upper layer belt line and the stacking platform are sequentially arranged along a straight line direction, the upper layer belt line is set on the rack, the exchange platform is detachably connected at the top of the stacking platform, the stacking platform is used to drive the exchange platform to lift, the middle layer belt line is located directly below the upper layer belt line and is slidably connected on the rack by a guide structure, driving assembly is provided on the rack, and the driving assembly is used to drive the middle layer belt line to move along the straight line direction. The automatic stacking device of laser cutting machine of the utility model is continuously circulated by two layers of belt line, matches the continuous cutting of front end laser cutting machine, can continuously operate, and is high in efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal stacking equipment, specifically to an automatic stacking device for a laser cutting machine. Background Technology

[0002] A common steel coil flying shear cutting line unwinds and levels the coiled material, then cuts it into sheets of a certain length and stacks them to a certain height for delivery to the customer. Its accompanying automatic stacking device has a flat bottom for storing the cut steel sheets, with swingable L-shaped brackets on the left and right sides above the flat bottom, and a baffle in front. After the flying shear mechanism cuts the steel sheet, the conveyor line feeds the cut sheet forward. At this point, the L-shaped brackets swing to support the steel sheet below. The conveyor line continues to feed the steel sheet until it hits the baffle in front, at which point the L-shaped brackets on the left and right sides quickly open outwards, allowing the cut steel sheet to fall downwards onto the flat bottom. The flying shear mechanism continuously cuts the coiled material into individual steel sheets, and the automatic stacking device stacks the steel sheets into piles. Once the set height is reached, the finished stack is removed. Its key feature is that during the stacking process after cutting, the steel sheets must move from the L-shaped brackets to the baffle in front, making it suitable for whole steel sheets. However, when a laser cutting machine cuts steel plates into various shapes, the steel plates are very prone to jamming or falling off when moving on the L-shaped bracket, resulting in low reliability.

[0003] Existing automated robotic palletizing lines for laser cutting machines are characterized by a conveyor line that delivers the laser-cut steel plate from the machine. When the plate reaches a designated position, robotic arms positioned on the side of the line move over, using suction cups or similar devices to grab the cut product, lift it, and then turn it to a stacking platform to form a pallet. This method uses multi-axis robots, each with a fixed arm length, limiting their movement to a specific area. When the steel plate is long, multiple robots are required, resulting in high costs. Furthermore, the robots' back-and-forth turning and grabbing motions are relatively slow. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides an automatic material stacking device for laser cutting machines. Through the continuous circulation of two layers of belt conveyors, it matches the continuous cutting of the front-end laser cutting machine, enabling continuous operation and high efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is: An automatic material stacking device for a laser cutting machine includes a frame, an upper conveyor belt, a middle conveyor belt, an exchange platform, and a stacking platform. The upper conveyor belt and the stacking platform are arranged sequentially along a straight line. The upper conveyor belt is mounted on the frame. The exchange platform is detachably connected to the top of the stacking platform and is used to drive the exchange platform to move up and down. The middle conveyor belt is located directly below the upper conveyor belt and is slidably connected to the frame through a guide structure. A drive assembly is provided on the frame to drive the middle conveyor belt to move along the straight line.

[0006] As a further improvement to the above technical solution, the guide structure includes a first guide rail and a first slider. The first guide rail includes two rails arranged parallel to each other on both sides of the frame. Each of the two first guide rails is provided with a plurality of first sliders. The two sides of the middle layer belt are respectively fixedly connected to the first sliders on the two guide rails.

[0007] As a further improvement to the above technical solution, the drive assembly includes a servo motor and a transmission mechanism. The transmission mechanism includes a drive sprocket, a driven sprocket, and a chain. The central shafts of the drive sprocket and the driven sprocket are rotatably connected to the frame. The chain is wound around the drive sprocket and the driven sprocket. A connector is provided on the chain. The connector is fixedly connected to the middle layer belt. The servo motor is mounted on the frame and is used to drive the central shaft of the drive sprocket to rotate.

[0008] As a further improvement to the above technical solution, the middle layer belt conveyor includes a first belt, a first frame, a first pulley, a first roller, and a first motor. There are two first pulleys and multiple first rollers located between two first pulleys. Both the first pulleys and the first rollers are rotatably connected to the first frame. The first belt is wound around the first pulleys. The first motor is mounted on the first frame and is used to drive one of the first pulleys to rotate. The first frame is fixedly connected to the first slider and the connecting member.

[0009] As a further improvement to the above technical solution, the upper belt conveyor includes a second belt, a second frame, a second pulley, a second roller, and a second motor. There are two second pulleys and multiple second rollers located between two second pulleys. Both the second pulleys and the second rollers are rotatably connected to the second frame. The second belt is wound around the second pulleys. The second motor is mounted on the second frame and is used to drive one of the second pulleys to rotate. The second frame is mounted on the machine frame.

[0010] As a further improvement to the above technical solution, the frame is equipped with a first sensor and a second sensor. The first sensor is used to detect the position of the steel plate being conveyed on the upper belt conveyor, and the second sensor is used to detect the position of the middle belt conveyor.

[0011] As a further improvement to the above technical solution, the speed at which the middle layer conveyor belt moves from the front end to the rear end is the same as the linear speed at which the upper layer conveyor belt drives the steel plate to move, and the speed at which the middle layer conveyor belt moves from the rear end to the front end is the same as the linear speed at which the middle layer conveyor belt drives the steel plate to move.

[0012] As a further improvement to the above technical solution, the stacking platform includes a base plate, a support plate, a vertical guide mechanism, and a lifting frame. The vertical guide mechanism and the lifting frame are disposed between the base plate and the shelf. The vertical guide mechanism is used to guide the support plate to move in the vertical direction, and the lifting frame is used to drive the support plate to move up and down. The exchange platform is detachably connected to the support plate.

[0013] As a further improvement to the above technical solution, the support plate is provided with multiple limiting angle plates, and the multiple limiting angle plates form a limiting space for accommodating the exchange platform.

[0014] As a further improvement to the above technical solution, a second guide rail is provided on the base plate, the rear end of the middle layer belt extends out of the frame and is connected to a support rod, and a second slider is provided at the bottom of the support rod, the second slider being slidably connected to the second guide rail.

[0015] The beneficial effects of this utility model are: 1. The upper and middle conveyor belts operate continuously in a cycle, matching the continuous cutting of the front-end laser cutting machine, enabling continuous operation and high efficiency. 2. Throughout the stacking process, the steel plates are transferred smoothly layer by layer from the upper conveyor belt to the middle conveyor belt and then to the exchange platform, utilizing the steel plates' own weight. This smooth and gentle process reduces damage to the steel plate surface. 3. This utility model uses common conveyor mechanisms such as belts / chains, which have a relatively simple structure and low manufacturing cost. The device makes full use of vertical space, stacking only within the width of the conveyor belt, without occupying the area on both sides, making workshop layout easier. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a front view of an automatic material stacking device for a laser cutting machine according to this utility model; Figure 2 This is an isometric view of an automatic material stacking device for a laser cutting machine according to this utility model; Figure 3This is a top view of an automatic material stacking device for a laser cutting machine according to this utility model; Figure 4 yes Figure 3 Sectional view of AA; Figure 5 yes Figure 4 Enlarged view of a portion of point A in the middle; Figure 6 This is a left view of an automatic material stacking device for a laser cutting machine according to this utility model.

[0018] Reference numerals: 100, frame; 200, upper conveyor belt; 201, second motor; 202, second belt; 203, second frame; 204, second pulley; 205, second roller; 300, middle conveyor belt; 301, first motor; 302, first belt; 303, first frame; 304, first pulley; 305, first roller; 400, exchange platform; 500, stacking platform; 501, base plate; 50 2. Support plate; 503. Limiting angle plate; 504. Vertical guide mechanism; 505. Lifting frame; 600. Auxiliary support structure; 601. Second guide rail; 602. Second slider; 603. Support rod; 700. Drive assembly; 701. Servo motor; 702. Drive sprocket; 703. Driven sprocket; 704. Chain; 705. Connector; 800. Guide structure; 801. First guide rail; 802. First slider. Detailed Implementation

[0019] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / connections involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / fixed installations can use screw connections, bolt connections, pin connections, key connections, adhesive connections, mortise and tenon connections, welding, riveting, etc., as needed. For detachable connections, screw connections, bolt connections, threaded connections, snap-fit ​​connections, mortise and tenon connections, Velcro connections, etc., can be used as needed. The various technical features in this utility model can be combined interactively without contradicting each other.

[0020] Reference Figures 1-6This utility model provides an automatic material stacking device for a laser cutting machine, including a frame 100, an upper conveyor belt 200, a middle conveyor belt 300, an exchange platform 400, and a stacking platform 500. The upper conveyor belt 200 and the stacking platform 500 are arranged sequentially along a straight line. The upper conveyor belt 200 is disposed on the frame 100. The exchange platform 400 is detachably connected to the top of the stacking platform 500 and is used to drive the exchange platform 400 to rise and fall. The middle conveyor belt 300 is located directly below the upper conveyor belt 200 and is slidably connected to the frame 100 through a guide structure 800. A drive assembly 700 is disposed on the frame 100, and the drive assembly 700 is used to drive the middle conveyor belt 300 to move along the straight line.

[0021] It can be understood that the front end of the upper conveyor belt 200 is close to the laser cutting machine. The steel plate cut by the laser cutting machine is placed on the upper conveyor belt 200 for conveying. When the steel plate is conveyed to the rear end of the upper conveyor belt 200, the drive assembly 700 drives the middle conveyor belt 300 to move towards the stacking platform 500. The steel plate is gradually transferred from the upper conveyor belt 200 to the middle conveyor belt 300. At this time, the steel plate is located directly above the exchange platform 400. Then, the middle conveyor belt 300 is started. As the steel plate moves, the drive assembly 700 drives the middle conveyor belt 300 to move backward, so that the steel plate is gradually transferred from the middle conveyor belt 300 to the exchange platform 400. Then, the stacking platform 500 drives the exchange platform 400 to descend by the height of one steel plate. The above operation is repeated to accumulate several steel plates on the exchange platform 400. Then, the exchange platform 400 is removed from the stacking platform 500 by a forklift or other equipment. After a new exchange platform 400 is installed, the steel plate stacking work continues.

[0022] The frame 100 is equipped with a first sensor and a second sensor. The first sensor detects the position of the steel plate conveyed on the upper conveyor belt 200, and the second sensor detects the position of the middle conveyor belt 300. In actual production, when the first sensor detects that the steel plate has been conveyed to the rear end of the upper conveyor belt 200, the drive assembly 700 starts to operate, driving the middle conveyor belt 300 to move. When the second sensor detects that the middle conveyor belt 300 has moved to a first predetermined position (the steel plate has been completely transferred from the upper conveyor belt 200 to the middle conveyor belt 300 and is located directly above the exchange platform 400), the drive assembly 700 drives the middle conveyor belt 300 to move in the opposite direction, and the middle conveyor belt 300 starts to run to move the steel plate. When the second sensor detects that the middle conveyor belt 300 has moved to a second predetermined position (the middle conveyor belt 300 has returned to its initial position), both the drive assembly 700 and the middle conveyor belt 300 stop operating.

[0023] Preferably, the speed at which the middle belt conveyor 300 moves from the front end to the rear end is the same as the linear speed at which the upper belt conveyor 200 moves the steel plate, and the speed at which the middle belt conveyor 300 moves from the rear end to the front end is the same as the linear speed at which the middle belt conveyor 300 moves the steel plate. This ensures that the process of the steel plate moving from the upper belt conveyor 200 to the middle belt conveyor 300 and then to the exchange platform 400 is smooth and gentle, thereby reducing the possibility of damage to the surface of the steel plate.

[0024] In this embodiment, refer to Figure 2 and Figure 4 The upper conveyor belt 200 includes a second belt 202, a second frame 203, a second pulley, a second roller 205, and a second motor 201. The second frame 203 is mounted on the frame 100. There are two second pulleys 204 and multiple second rollers 205 located between two second pulleys 204. Both the second pulleys 204 and the second rollers 205 are rotatably connected to the second frame 203. The second belt 202 is wound around the second pulleys 204. The second motor 201 is mounted on the second frame 203 and connected to the second pulley 204 on the side near the stacking platform 500. Thus, the second belt 202 is rotated by the second motor 201 to realize the conveying of steel plates.

[0025] The intermediate belt conveyor 300 includes a first belt 302, a first frame 303, a first pulley 304, a first roller 305, and a first motor 301. There are two first pulleys 304 and multiple first rollers 305 located between the two first pulleys 304. Both the first pulleys 304 and the first rollers 305 are rotatably connected to the first frame 303. The first belt 302 is wound around the first pulleys 304. The first motor 301 is mounted on the first frame 303 and rotates with the first pulleys 304 on the side near the stacking platform 500. Thus, the second belt 202 is rotated by the second motor 201 to realize the conveying of steel plates.

[0026] In this embodiment, refer to Figure 6 The guide structure 800 includes a first guide rail 801 and a first slider 802. The first guide rail 801 includes two rails and is arranged parallel to each other on both sides of the frame 100. Each of the two first guide rails 801 is provided with a plurality of first sliders 802. The long side of the first frame 303 is fixedly connected to the first sliders 802 on the two guide rails respectively, thereby realizing the sliding of the middle layer belt 300 on the frame 100.

[0027] In this embodiment, refer to Figure 4 and Figure 5The drive assembly 700 includes a servo motor 701 and a transmission mechanism. The transmission mechanism includes a drive sprocket 702, a driven sprocket 703, and a chain 704. The central shafts of the drive sprocket 702 and the driven sprocket 703 are rotatably connected to the frame 100. The chain 704 is wound around the drive sprocket 702 and the driven sprocket 703. A connector 705 is provided on the chain 704, and the connector 705 is fixedly connected to the bottom of the first frame 303. The servo motor 701 is mounted on the frame 100 and connected to the central shaft of the drive sprocket 702. Thus, when the servo motor 701 drives the drive sprocket 702 to rotate, it can drive the chain 704 to rotate, thereby driving the middle layer belt 300 to move.

[0028] In this embodiment, refer to Figure 2 and Figure 4 The stacking platform 500 includes a base plate 501, a support plate 502, a vertical guide mechanism 504, and a lifting frame 505. The vertical guide mechanism 504 and the lifting frame 505 are disposed between the base plate 501 and the shelf. The exchange platform 400 is detachably connected to the support plate 502. The lifting frame 505 drives the support plate 502 to move up and down, thereby adjusting the height of the exchange platform 400. The vertical guide mechanism 504 guides the support plate 502 to move vertically, ensuring the stability of the support plate 502 in the vertical direction.

[0029] The vertical guide mechanism 504 can be a guide column and a guide sleeve, and the lifting frame 505 can be a cylinder / hydraulic cylinder and a cross swing arm.

[0030] Furthermore, the support plate 502 is provided with a plurality of limiting angle plates 503, and the plurality of limiting angle plates 503 form a limiting space for accommodating the exchange platform 400. In this way, the exchange platform 400 can be directly placed into the limiting space in the vertical direction, avoiding the movement of the exchange platform 400 in the horizontal direction, and at the same time facilitating the picking and placing of the exchange platform 400.

[0031] In this embodiment, the intermediate belt conveyor 300 is also connected to an auxiliary support structure 600. The auxiliary support structure 600 includes a second guide rail 601, a second slider 602, and a support rod 603. The second guide rail 601 is disposed on the base plate 501. The rear end of the intermediate belt conveyor 300 extends out of the frame 100. The support rod 603 is disposed at the bottom of the first frame 303. The second slider 602 is disposed at the bottom of the support rod 603 and is slidably connected to the second guide rail 601. In this way, when the intermediate belt conveyor 300 moves above the stacking platform, the support rod 603 supports the intermediate belt conveyor 300, ensuring the stability of the movement of the intermediate belt conveyor 300 and avoiding damage due to force.

[0032] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. An automatic material stacking device for a laser cutting machine, characterized in that: The system includes a frame, an upper conveyor belt, a middle conveyor belt, an exchange platform, and a stacking platform. The upper conveyor belt and the stacking platform are arranged sequentially along a straight line. The upper conveyor belt is mounted on the frame. The exchange platform is detachably connected to the top of the stacking platform and is used to drive the exchange platform to move up and down. The middle conveyor belt is located directly below the upper conveyor belt and is slidably connected to the frame through a guide structure. A drive assembly is provided on the frame to drive the middle conveyor belt to move along the straight line.

2. The automatic material stacking device for a laser cutting machine according to claim 1, characterized in that: The guide structure includes a first guide rail and a first slider. The first guide rail includes two rails arranged parallel to each other on both sides of the frame. Each of the two first guide rails is provided with a plurality of first sliders. The two sides of the middle layer belt are respectively fixedly connected to the first sliders on the two guide rails.

3. The automatic material stacking device for a laser cutting machine according to claim 2, characterized in that: The drive assembly includes a servo motor and a transmission mechanism. The transmission mechanism includes a drive sprocket, a driven sprocket, and a chain. The central shafts of the drive sprocket and the driven sprocket are rotatably connected to the frame. The chain is wound around the drive sprocket and the driven sprocket. A connector is provided on the chain, and the connector is fixedly connected to the middle layer belt. The servo motor is mounted on the frame and is used to drive the central shaft of the drive sprocket to rotate.

4. The automatic material stacking device for a laser cutting machine according to claim 3, characterized in that: The middle layer belt conveyor includes a first belt, a first frame, a first pulley, a first roller, and a first motor. There are two first pulleys and multiple first rollers located between two first pulleys. Both the first pulleys and the first rollers are rotatably connected to the first frame. The first belt is wound around the first pulleys. The first motor is mounted on the first frame and is used to drive the rotation of one of the first pulleys. The first frame is fixedly connected to the first slider and the connecting member.

5. The automatic material stacking device for a laser cutting machine according to claim 1, characterized in that: The upper belt conveyor includes a second belt, a second frame, a second pulley, a second roller, and a second motor. There are two second pulleys and multiple second rollers located between two second pulleys. Both the second pulleys and the second rollers are rotatably connected to the second frame. The second belt is wound around the second pulleys. The second motor is mounted on the second frame and is used to drive one of the second pulleys to rotate. The second frame is mounted on the machine frame.

6. The automatic material stacking device for a laser cutting machine according to claim 1, characterized in that: The frame is equipped with a first sensor and a second sensor. The first sensor is used to detect the position of the steel plate being conveyed on the upper belt conveyor, and the second sensor is used to detect the position of the middle belt conveyor.

7. The automatic material stacking device for a laser cutting machine according to claim 1, characterized in that: The speed at which the middle layer conveyor belt moves from the front end to the rear end is the same as the linear speed at which the upper layer conveyor belt drives the steel plate, and the speed at which the middle layer conveyor belt moves from the rear end to the front end is the same as the linear speed at which the middle layer conveyor belt drives the steel plate.

8. The automatic material stacking device for a laser cutting machine according to claim 1, characterized in that: The stacking platform includes a base plate, a support plate, a vertical guide mechanism, and a lifting frame. The vertical guide mechanism and the lifting frame are disposed between the base plate and the shelf. The vertical guide mechanism is used to guide the support plate to move in the vertical direction, and the lifting frame is used to drive the support plate to move up and down. The exchange platform is detachably connected to the support plate.

9. The automatic material stacking device for a laser cutting machine according to claim 8, characterized in that: The support plate is provided with multiple limiting angle plates, and the multiple limiting angle plates form a limiting space for accommodating the exchange platform.

10. An automatic material stacking device for a laser cutting machine according to claim 8, characterized in that: A second guide rail is provided on the base plate. The rear end of the middle layer belt extends out of the frame and is connected to a support rod. A second slider is provided at the bottom of the support rod and is slidably connected to the second guide rail.

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