Metal plate laser cutting equipment for lantern production

Abstract

The invention relates to the technical field of laser cutting, in particular to metal plate laser cutting equipment for lantern production, which comprises a workbench, a laser cutting head and two transmission belts, the upper end of the workbench is slidably provided with two brackets which are symmetrically arranged, and the lower side of the workbench is provided with a driving bevel gear which is in meshed connection with a driven bevel gear; a sliding rod connected with the driving bevel gear in an inserted mode is fixedly installed on the periphery of the second driving motor through an output shaft. Two transmission belts are arranged, the distance between the two transmission belts is adjusted, so that the two transmission belts can clamp the two sides of a metal plate, the two transmission belts can be driven to move through a second driving motor and a bevel gear set, and the effect of driving the metal plate to move is achieved; and the moving direction of the metal plate is completely perpendicular to the cutting direction of the laser cutting head, so that the cutting quality of the metal plate is guaranteed, and deviation of the lantern frame during installation is avoided.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, and in particular to a laser cutting device for metal plates used in lantern production. Background Technology

[0002] In lantern production, laser cutting of metal sheets is an advanced process that uses invisible light beams instead of traditional mechanical tools. It boasts advantages such as high precision, fast cutting speed, no limitation by pattern complexity, automatic layout to save materials, smooth cuts, and lower processing costs, and is gradually improving upon and even replacing traditional metal cutting equipment. In practice, the metal sheet is typically placed on the laser cutting machine's worktable, below the cutting head. However, the laser cutting head can cause sheet displacement during operation, leading to deviations in the cutting position and affecting cutting accuracy and efficiency. Furthermore, the cut metal sheet often falls directly onto the worktable, requiring manual removal, which not only increases labor intensity and reduces work efficiency but also poses a risk of injury to operators from the laser cutting head, compromising production safety and overall equipment performance. Therefore, when applying laser cutting technology in lantern manufacturing, it is crucial to emphasize positioning stability and proper material handling to improve processing quality and operational safety.

[0003] Existing technology, patent document CN114227004A, discloses a laser cutting device for metal plate production and processing. In use, the operator first places the metal plate on a support plate and then pulls a lever outwards. A locking lever is fixed to one end of the lever, initially engaged in a slot within the throttle handle, and surrounded by a telescopic spring. When pulled, the locking lever compresses the spring and slides out of the current slot, disengaging from the throttle handle. Rotating the lever at this time allows the locking lever to engage in another slot and contact a rubber pad, achieving positioning, while simultaneously releasing the throttle handle to allow rotation. The throttle handle is connected to gears via a shaft, with the gears meshing with racks on both sides. Each rack is fixed to a sliding rod. The sliding rods slide against the equipment mounting plate, and a pressing plate is mounted at the front end. When the throttle handle is rotated, the gears drive the two racks to move towards each other, causing the pressing plates on both sides to approach synchronously, clamping the metal plate from both sides. This structure not only facilitates quick clamping of the metal plate but also effectively suppresses vibration and displacement during the cutting process, avoiding cutting position deviations and ensuring processing quality.

[0004] The device's fixing mechanism lacks width adjustment, making it difficult to maintain the sheet metal's movement direction perpendicular to the laser cutting head's cutting trajectory during the metal sheet feeding process. This alignment deviation accumulates as the conveyor belt runs, especially when processing rectangular or highly symmetrical lantern components, easily causing cutting path offset and affecting workpiece forming accuracy. This is clearly a significant drawback. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the background art, and to propose a laser cutting equipment for metal plates for lantern production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a laser cutting device for metal plates used in lantern production, comprising a worktable, a laser cutting head, and two transmission belts. Two symmetrically arranged supports are slidably mounted on the upper end of the worktable. Driven wheels and driving wheels are rotatably mounted on both sides of the outer periphery of the supports. The transmission belts are sleeved around the driven wheels and driving wheels. A first drive motor and a second drive motor are fixedly mounted on both sides of the lower end of the worktable. A first threaded rod that is threadedly connected to the supports on both sides is fixedly mounted on the outer periphery of the first drive motor through an output shaft. A driven bevel gear is fixedly mounted on the lower end of the driving wheel. A driving bevel gear that meshes with the driven bevel gear is provided on the lower side of the worktable. A slide rod that is plugged into and connected to the driving bevel gear is fixedly mounted on the outer periphery of the second drive motor through an output shaft.

[0007] In the aforementioned laser cutting equipment for producing metal plates for lantern production, a first limiting groove is provided on the upper end of the worktable, a threaded slider is fixedly installed on the lower end of the bracket, and the first threaded rod is threadedly connected to the threaded slider.

[0008] In the aforementioned laser cutting equipment for producing metal plates for lanterns, a second limiting groove is provided on the other side of the upper end of the worktable, and a movable seat is slidably installed in the second limiting groove, with a drive wheel rotatably installed on the upper end of the movable seat.

[0009] In the aforementioned laser cutting equipment for metal plates used in lantern production, the movable seat is L-shaped, the driven bevel gear is rotatably mounted on the upper inner side of the movable seat, and the driving bevel gear is rotatably mounted on the lower inner side of the movable seat. A limit insertion hole is provided in the middle of the driving bevel gear, and the slide rod is inserted into the limit insertion hole.

[0010] In the aforementioned laser cutting equipment for metal plates used in lantern production, a fixed frame is fixedly installed at the middle of the upper end of the worktable, and a connecting seat is fixedly installed on the upper side of the inner cavity of the fixed frame. The lower end of the connecting seat is fixedly connected to the laser cutting head through a hydraulic push rod.

[0011] In the aforementioned laser cutting equipment for metal plates used in lantern production, the connecting seat has a threaded hole, a second threaded rod that is threadedly connected to the threaded hole is rotatably installed in the fixing frame, and a third drive motor is fixedly installed at the outer end of the fixing frame. One side of the third drive motor is fixedly connected to the shaft of the second threaded rod through its output shaft.

[0012] In the aforementioned laser cutting equipment for metal plates used in lantern production, a gas guide cavity is provided inside the connecting seat. The gas guide cavity is arranged in a ring shape and is located around the threaded hole. An external pipe that communicates with the gas guide cavity is fixedly installed at the upper end of the connecting seat. A gas guide cover is fixedly installed around the laser cutting head. The gas guide cover and the gas guide cavity are connected to each other through a telescopic sleeve.

[0013] In the aforementioned laser cutting equipment for producing metal plates for lanterns, a cavity is provided in the middle of the upper end of the worktable. The cavity is located on the lower side of the fixed frame. A discharge pipe is installed at the outer end of the cavity. A spiral rod is rotatably installed inside the cavity and the discharge pipe. A fourth drive motor is fixedly installed on the outer side of the cavity. One side of the fourth drive motor is fixedly connected to the spiral rod shaft through its output shaft.

[0014] Compared with existing technologies, the advantages of this laser cutting equipment for metal plates used in lantern production are: I. This invention features two transmission belts. The distance between the two transmission belts can be adjusted via a first drive motor and a first threaded rod, allowing the two transmission belts to clamp the metal plate on both sides. A second drive motor and a bevel gear set can drive the two transmission belts to move, thereby moving the metal plate. The direction of movement of the metal plate is completely perpendicular to the cutting direction of the laser cutting head, ensuring the cutting quality of the metal plate and preventing deviations during the installation of the lantern frame.

[0015] Second, the present invention is equipped with an air guide hood and an external pipe, which can guide outside air to the contact point between the laser cutting head and the metal plate during laser cutting. This can improve the combustion efficiency of the metal plate cutting point and remove the molten material at the cutting point, thus ensuring the laser cutting effect.

[0016] Third, the present invention has a concave cavity to collect the molten material removed from the surface of the metal plate, and a discharge pipe is provided. The molten material of the metal plate can be recycled through a fourth drive motor and a screw rod. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of the workbench and transmission belt of the present invention; Figure 2 This is a schematic diagram of the external structure of the workbench of the present invention; Figure 3 This is a schematic diagram of the external structure of the transmission belt and bracket of the present invention; Figure 4 This is a schematic diagram of the externally disassembled structure of the transmission belt and bracket of the present invention; Figure 5 This is a schematic diagram of the external structure of the threaded slider and the first threaded rod of the present invention; Figure 6 This is a schematic diagram of the externally disassembled structure of the movable seat and slide rod of the present invention; Figure 7 This is a schematic diagram of the fixing frame and the internal structure of the cavity of the present invention; Figure 8 This is a schematic diagram of the internal structure of the connecting seat and the air guide cover of the present invention.

[0018] In the picture: 1. Workbench; 2. Drive belt; 21. Bracket; 22. Driven pulley; 23. Drive pulley; 24. First drive motor; 241. First limiting groove; 242. Threaded slider; 243. First threaded rod; 25. Second drive motor; 251. Second limit slide groove; 252. Movable seat; 253. Driven bevel gear; 254. Driven bevel gear; 255. Limiting insertion hole; 256. Slide rod; 3. Fixture; 31. Laser cutting head; 310. Third drive motor; 311. Connecting seat; 312. Second threaded rod; 313. Hydraulic push rod; 314. Threaded hole; 315. Air guide shroud; 316. Air guide chamber; 317. Telescopic sleeve; 318. Outer pipe; 32. Cavity; 321. Discharge pipe; 322. Fourth drive motor; 323. Screw rod. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] Reference Figures 1-8A laser cutting device for producing metal plates for lantern production includes a worktable 1, a laser cutting head 31, and two transmission belts 2. Two symmetrically arranged supports 21 are slidably mounted on the upper end of the worktable 1. Driven wheels 22 and driving wheels 23 are rotatably mounted on the outer sides of the supports 21 respectively. The transmission belts 2 are sleeved around the driven wheels 22 and driving wheels 23. A first drive motor 24 and a second drive motor 25 are fixedly mounted on the lower two sides of the worktable 1 respectively. A first threaded rod 243 that is threadedly connected to the supports 21 on both sides is fixedly mounted on the outer side of the first drive motor 24 through an output shaft. A driven bevel gear 253 is fixedly mounted on the lower end of the driving wheel 23. A driving bevel gear 254 that meshes with the driven bevel gear 253 is provided on the lower side of the worktable 1. A slide rod 256 that is plugged into the driving bevel gear 254 is fixedly mounted on the outer side of the second drive motor 25 through an output shaft.

[0022] The upper end of the worktable 1 is provided with a first limiting slide groove 241, and a threaded slider 242 is fixedly installed at the lower end of the bracket 21, with a first threaded rod 243 threadedly connected to the threaded slider 242. A second limiting slide groove 251 is provided on the other side of the upper end of the worktable 1, and a movable seat 252 is slidably installed within the second limiting slide groove 251. A drive wheel 23 is rotatably installed on the upper end of the movable seat 252. The movable seat 252 is L-shaped, with a driven bevel gear 253 rotatably installed on the upper inner side of the movable seat 252, and a drive bevel gear 254 rotatably installed on the lower inner side of the movable seat 252. A limiting insertion hole 255 is provided in the middle of the drive bevel gear 254, and a slide rod 256 is inserted into the limiting insertion hole 255.

[0023] A fixed frame 3 is fixedly installed at the upper center of the worktable 1. A connecting seat 311 is fixedly installed on the upper side of the inner cavity of the fixed frame 3. The lower end of the connecting seat 311 is fixedly connected to the laser cutting head 31 via a hydraulic push rod 313. A threaded hole 314 is opened in the connecting seat 311. A second threaded rod 312, which is threadedly connected to the threaded hole 314, is rotatably installed in the fixed frame 3. A third drive motor 310 is fixedly installed at the outer end of the fixed frame 3. One side of the third drive motor 310 is fixedly connected to the shaft of the second threaded rod 312 via its output shaft. An air guide cavity 316 is opened in the connecting seat 311. The air guide cavity 316 is arranged in a ring shape and is located around the threaded hole 314. An outer pipe 318, which communicates with the air guide cavity 316, is fixedly installed at the upper end of the connecting seat 311. An air guide cover 315 is fixedly installed around the laser cutting head 31. The air guide cover 315 and the air guide cavity 316 are connected to each other via a telescopic sleeve 317. A cavity 32 is provided in the middle of the upper end of the workbench 1. The cavity 32 is located on the lower side of the fixed frame 3. A discharge pipe 321 is installed at the outer end of the cavity 32. A screw rod 323 is rotatably installed in the cavity 32 and the discharge pipe 321. A fourth drive motor 322 is fixedly installed on the outer side of the cavity 32. One side of the fourth drive motor 322 is fixedly connected to the shaft of the screw rod 323 through its output shaft.

[0024] The working principle and usage of this invention are explained in detail below: When the first drive motor 24 is started, its output shaft can drive the first threaded rod 243 to rotate. The first limiting slide groove 241, through its sliding connection with the threaded slider 242, restricts the movement direction of the threaded slider 242, so that the rotating first threaded rod 243 can drive the two side supports 21 to move towards or away from each other, thereby achieving the effect of adjusting the spacing of the two side transmission belts 2.

[0025] During the movement of the two side supports 21, the slide rod 256 can always be connected to the drive bevel gear 254 through the plug-in connection between the slide rod 256 and the limiting socket 255.

[0026] The lantern metal plate is installed between the two transmission belts 2. The second drive motor 25 is started, and its output shaft can drive the slide rod 256 to rotate. Through the insertion connection between the slide rod 256 and the driving bevel gear 254 and the meshing connection between the driving bevel gear 254 and the driven bevel gear 253, the driving wheel 23 can be driven to rotate. In conjunction with the driven wheel 22, the two transmission belts 2 on both sides can be driven to rotate in opposite directions, so as to achieve the effect of traction on the metal plate.

[0027] Through the threaded connection between the threaded hole 314 and the second threaded rod 312, the horizontal position of the laser cutting head 31 can be adjusted when the third drive motor 310 is started. The height of the laser cutting head 31 can be adjusted through the hydraulic push rod 313, so that the laser cutting head 31 can contact the metal plate and achieve the effect of laser cutting the metal plate. Furthermore, since the top of the fixed frame 3 is set perpendicular to the two supports 21, the laser cutting deviation can be reduced.

[0028] Connect the outer end of the outer pipe 318 to the external air pump, start the external air pump, and through the outer pipe 318, the air guide cavity 316 and the telescopic sleeve 317, air can be injected into the air guide cover 315, thereby guiding the air to the contact point between the laser cutting head 31 and the metal plate. During laser cutting, this can improve the combustion efficiency of the metal plate cutting point and remove the molten material at the cutting point, ensuring the laser cutting effect.

[0029] The recessed cavity 32 is provided to collect the molten material removed from the surface of the metal plate. When it is necessary to collect the molten material, the fourth drive motor 322 is started, and its output shaft can drive the screw rod 323 to rotate in the recessed cavity 32 and the discharge pipe 321 to guide the molten material. The molten material can be collected outside the discharge pipe 321.

[0030] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A laser cutting device for metal plates used in lantern production, comprising a worktable, a laser cutting head, and two transmission belts, characterized in that: Two symmetrically arranged brackets are slidably mounted on the upper end of the worktable. A driven wheel and a driving wheel are rotatably mounted on the outer sides of the brackets respectively. A transmission belt is sleeved around the driven wheel and the driving wheel. A first drive motor and a second drive motor are fixedly mounted on the lower ends of the worktable respectively. A first threaded rod that is threadedly connected to the brackets on both sides is fixedly mounted on the outer side of the first drive motor through the output shaft. A driven bevel gear is fixedly mounted on the lower end of the driving wheel. A driving bevel gear that meshes with the driven bevel gear is provided on the lower side of the worktable. A slide rod that is plugged into and connected to the driving bevel gear is fixedly mounted on the outer side of the second drive motor through the output shaft.

2. The laser cutting equipment for metal plates used in lantern production according to claim 1, characterized in that: The upper end of the workbench is provided with a first limiting groove, and the lower end of the bracket is fixedly installed with a threaded slider, and the first threaded rod is threadedly connected to the threaded slider.

3. The laser cutting equipment for metal plates used in lantern production according to claim 2, characterized in that: A second limiting groove is provided on the other side of the upper end of the workbench, and a movable seat is slidably installed in the second limiting groove, with the driving wheel rotatably installed on the upper end of the movable seat.

4. The metal plate laser cutting equipment for lantern production according to claim 3, characterized in that: The movable seat is L-shaped. The driven bevel gear is rotatably mounted on the upper inner side of the movable seat, and the driving bevel gear is rotatably mounted on the lower inner side of the movable seat. A limit hole is provided in the middle of the driving bevel gear, and the slide rod is inserted into the limit hole.

5. The laser cutting equipment for metal plates used in lantern production according to claim 1, characterized in that: A fixed frame is fixedly installed at the middle of the upper part of the workbench, and a connecting seat is fixedly installed on the upper side of the inner cavity of the fixed frame. The lower end of the connecting seat is fixedly connected to the laser cutting head through a hydraulic push rod.

6. The laser cutting equipment for metal plates used in lantern production according to claim 5, characterized in that: The connecting seat has a threaded hole, and a second threaded rod that is threadedly connected to the threaded hole is rotatably installed in the fixing frame. A third drive motor is fixedly installed at the outer end of the fixing frame, and one side of the third drive motor is fixedly connected to the shaft of the second threaded rod through its output shaft.

7. The laser cutting equipment for metal plates used in lantern production according to claim 6, characterized in that: The connecting seat has an air guide cavity, which is arranged in a ring shape and located around the threaded hole. An external pipe that communicates with the air guide cavity is fixedly installed on the upper end of the connecting seat. An air guide cover is fixedly installed around the laser cutting head. The air guide cover and the air guide cavity are connected to each other through a telescopic sleeve.

8. The laser cutting equipment for metal plates used in lantern production according to claim 7, characterized in that: A recessed cavity is provided in the middle of the upper part of the workbench. The recessed cavity is located on the lower side of the fixed frame. A discharge pipe is installed at the outer end of the recessed cavity. A screw rod is rotatably installed inside the recessed cavity and the discharge pipe. A fourth drive motor is fixedly installed on the outer side of the recessed cavity. One side of the fourth drive motor is fixedly connected to the screw rod shaft through its output shaft.

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