Feeding device of metal plate laser cutting machine

Abstract

The utility model discloses a feeding device of a sheet metal laser cutting machine, which belongs to the technical field of laser cutting machines and comprises a rack, a cutting mechanism is movably arranged on the rack, transmission rollers are rotatably arranged at two ends of the rack, a plurality of transmission belts which are distributed in parallel are sleeved on the two transmission rollers in a transmission manner, and the transmission belts are arranged on the rack. An electric push rod is arranged at the bottom of the rack, a mounting plate is arranged at the piston end of the electric push rod and located between the upper conveying section and the lower conveying section of the conveying belts, a plurality of sawtooth pieces are arranged on the mounting plate through supporting rods, and the sawtooth pieces and the conveying belts are distributed in a staggered mode.

Description

Technical Field

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

[0002] Laser cutting machines use an optical system to focus a laser beam emitted from a laser source into a high-power-density laser beam. Laser cutting uses an invisible beam of light instead of a traditional mechanical blade, offering advantages such as high precision, fast cutting speed, no limitation on cutting patterns, automatic layout to save materials, smooth cuts, and low processing costs. It will gradually improve upon or replace traditional metal cutting equipment. When cutting sheet metal, a feeding device is needed to place the sheet metal on the cutting table for laser cutting.

[0003] A search of the utility model patent with publication number CN218575292U reveals a sheet metal feeding device for a laser cutting machine. This device, through a connection structure of a negative pressure pump and a silicone suction cup, along with limiting components, ensures the stability and firmness of the sheet metal during feeding by both adsorption and clamping. However, it has certain shortcomings in use. Because it uses a flipping feeding method, new material can only be fed after the sheet metal has been completely unloaded. After cutting, the sheet metal is not a single piece but multiple pieces, and the adsorption and clamping methods cannot quickly remove these multiple pieces, resulting in significant time delays during unloading. This delay affects the subsequent feeding efficiency, which in turn impacts the processing efficiency of laser cutting. Therefore, this application proposes a feeding device for a sheet metal laser cutting machine. Utility Model Content

[0004] The purpose of this invention is to address the issue that existing laser cutting machines can only reload after the material has been completely unloaded, which takes a considerable amount of time and thus affects loading efficiency and the processing efficiency of the laser cutting machine. This invention provides a loading device for a sheet metal laser cutting machine.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A feeding device for a sheet metal laser cutting machine, comprising:

[0007] A frame is provided with a cutting mechanism. Both ends of the frame are rotatably equipped with transmission rollers. Several parallel transmission belts are driven and sleeved on the two transmission rollers. An electric push rod is provided at the bottom of the frame. The piston end of the electric push rod is equipped with a mounting plate, which is located between the upper and lower transmission sections of the transmission belts. Several saw blades are provided on the mounting plate through support rods. The saw blades are distributed alternately with the several transmission belts.

[0008] Furthermore, a first grinding rod is rotatably mounted on one end of the frame, and a spherical gear is fixed on both the first grinding rod and one of the transmission rollers, with the teeth of the two spherical gears meshing.

[0009] Furthermore, one end of the frame is connected to an arc-shaped cover plate, and the first grinding rod is located inside the arc-shaped cover plate.

[0010] Furthermore, the inner walls of the frame are provided with connecting plates on opposite sides, and a plurality of second grinding rods are rotatably arranged between the two connecting plates. The plurality of second grinding rods are respectively distributed with a plurality of saw blades. The frame is provided with a driving component for driving the plurality of second grinding rods to rotate synchronously.

[0011] Furthermore, the driving component includes a guide rod rotatably mounted on the frame, a pulley assembly connecting the guide rod to another transmission roller, and a bevel gear assembly drivingly connecting the guide rod to several second grinding rods respectively.

[0012] Furthermore, both the mounting plate and the inner bottom wall of the frame are inclined, and a collection frame is provided at one end of the frame.

[0013] Furthermore, a sponge strip is provided at the end of the connecting plate with a lower inclination.

[0014] Furthermore, the cutting mechanism includes a first lead screw rotatably mounted on a frame, a gantry frame slidably mounted on the frame, a protrusion connected to the gantry frame and threaded onto the first lead screw, a second lead screw rotatably passing through the gantry frame, a movable block threaded onto the second lead screw, and a laser cutting head mounted on the movable block.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the saw blade is set on the mounting plate by a support rod, and the saw blade is driven to rise and fall by an electric push rod. Several saw blades are distributed alternately with several conveyor belts. The height of the saw blades relative to the conveyor belts is switched by the electric push rod driving the saw blades to rise and fall. The conveyor belts transport the board, and the saw blades lift the board to facilitate cutting. This ensures that there is no excessive delay between loading, cutting, and unloading, and the three processes are well connected, reducing delay time and thus improving processing efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural cross-sectional view of the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the cutting mechanism of this utility model;

[0019] Figure 4 This is a partial three-dimensional structural diagram of the present utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of another part of the present utility model.

[0021] In the diagram: 1. Frame; 2. Cutting mechanism; 3. Conveyor roller; 4. Conveyor belt; 5. Electric push rod; 6. Mounting plate; 7. Saw blade; 8. First grinding rod; 9. Circular gear; 10. Arc-shaped cover plate; 11. Connecting plate; 12. Second grinding rod; 13. Drive component; 14. Collection frame; 15. Sponge strip; 201. First lead screw; 202. Gantry frame; 203. Second lead screw; 204. Movable block; 205. Laser cutting head; 1301. Guide rod; 1302. Pulley assembly; 1303. Bevel gear assembly. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0023] This embodiment provides a feeding device for a sheet metal laser cutting machine, mainly to solve the problem that existing laser cutting machines can only reload after the material has been completely unloaded, which is time-consuming and affects feeding efficiency and the processing efficiency of the laser cutting machine. The following technical solution is provided, which will be discussed in conjunction with... Figures 1-5 Please provide a detailed explanation:

[0024] A feeding device for a sheet metal laser cutting machine, comprising:

[0025] A frame 1 is movably mounted with a cutting mechanism 2 for cutting sheet metal. Both ends of the frame 1 are rotatably mounted with transmission rollers 3. Several parallel transmission belts 4 are driven onto the two transmission rollers 3. Preferably, one end of one transmission roller 3 is connected to a motor mounted on the frame 1. The motor drives the transmission roller 3 to rotate, thereby driving the several transmission belts 4 to move synchronously. An electric push rod 5 is located at the bottom of the frame 1. A mounting plate 6 is mounted on the piston end of the electric push rod 5, and the mounting plate 6 is located between the upper and lower transmission sections of the transmission belts 4. Several saw blades 7 are mounted on the mounting plate 6 via support rods. The saw blades 7 are staggered with the several transmission belts 4. When the electric push rod 5 is powered, its piston end drives the mounting plate 6 to rise and fall, thereby driving the saw blades 7 to rise and fall. Preferably, as... Figure 1As shown, the cutting mechanism 2 is located in the middle of the frame 1, and several saw blades 7 are also located in the middle of the frame 1. The left end of the frame 1 is the loading area, and the right end is the unloading area. When loading the sheet material, the electric push rod 5 works, and its piston end drives the mounting plate 6 to descend. At this time, the saw blades 7 descend, so that their tops are lower than the upper conveying surface of the conveyor belt 4. Then, the sheet material is placed on the top left end of the several conveyor belts 4. The motor works to drive the several conveyor belts 4 to transport to the right. When the sheet material is transported to the middle of the frame 1 (that is, below the cutting mechanism 2), the transport of the conveyor belts 4 stops. Then, the electric push rod 5 works to drive the mounting plate 6 to rise, thereby causing the several saw blades 7 to rise. The saw blades 7 lift and support the sheet material, causing it to detach from the conveyor belts 4. At this time, the cutting mechanism 2 can cut the plate held up by the saw blade 7. Preferably, the conveyor belt 4 is made of a rubber belt or steel belt with good corrosion resistance so that the debris splashed during cutting will not damage the conveyor belt 4. At this time, when cutting the plate, the plate to be cut can be placed on the left end of several conveyor belts 4. After the plate held up by the saw blade 7 is cut, the electric push rod 5 drives the mounting plate 6 to descend, thereby driving the saw blade 7 to descend, so that the cut plate is placed on the conveyor belt 4 again. At this time, the conveyor belt 4 transports again, moving the cut plate to the right end for unloading, while the plate located at the left end is transported to the middle for cutting. This ensures that the loading, cutting and unloading do not delay each other too much, and the three have good continuity, thereby improving the processing efficiency.

[0026] In this solution, the saw blade 7 is mounted on the mounting plate 6 via a support rod. The electric push rod 5 drives the saw blade 7 to rise and fall. Several saw blades 7 are staggered with several conveyor belts 4. The electric push rod 5 drives the saw blades 7 to rise and fall to switch their height relative to the conveyor belts 4. The conveyor belts 4 transport the sheet material, and the saw blades 7 lift the sheet material to facilitate cutting. This ensures that there is not much delay between loading, cutting, and unloading, and the three processes are well connected, reducing delay time and improving processing efficiency.

[0027] like Figure 1 and Figure 2As shown in this embodiment, a first grinding rod 8 is rotatably mounted on one end of the frame 1. Preferably, the first grinding rod 8 is located at the right end (feeding end) of the frame 1. The outer surface of the first grinding rod 8 is constructed with tough metal bristles. Both the first grinding rod 8 and one of the transmission rollers 3 are fixed with a sprocket 9, and the teeth of the two sprockets 9 mesh. When the plate is cut, the cutting debris will splash downwards. Due to the high temperature generated by laser cutting, the debris is easy to stick to the surface of the transmission belt 4. After long-term use, more and more metal shavings will accumulate on the surface of the transmission belt 4. By rotatably mounting the first grinding rod 8, and setting the teeth of the sprockets 9 meshing on the first grinding rod 8 and the transmission roller 3, when the transmission belt 4 is conveying, the teeth of the two sprockets 9 mesh, thereby driving the first grinding rod 8 to rotate, so that the bristles on it grind the surface of the transmission belt 4, thereby grinding away the metal shavings attached to it, thus ensuring the cleanliness of the transmission belt 4, so as to better place the plate, facilitate the batch continuous feeding and cutting of the plate, and thus improve practicality.

[0028] like Figure 2 As shown in this embodiment, one end of the frame 1 is connected to an arc-shaped cover plate 10, and the first grinding rod 8 is located inside the arc-shaped cover plate 10. Since the grinding is located at the unloading end, and the material is unloaded at the unloading end, the arc-shaped cover plate 10 is set to shield and protect the material, so as to prevent the debris from being splashed by the grinding of the first grinding rod 8. When the worker unloads the material at the unloading end, it plays a role in protecting the worker.

[0029] like Figure 4As shown, in this embodiment, connecting plates 11 are provided on opposite sides of the inner wall of the frame 1. A plurality of second grinding rods 12 are rotatably arranged between the two connecting plates 11. These second grinding rods 12 are staggered with a plurality of saw blades 7. A driving component 13 is provided on the frame 1 to drive the plurality of second grinding rods 12 to rotate synchronously. Preferably, the outer surface of the second grinding rods 12 is constructed with tough metal bristles. The height of the second grinding rods 12 is lower than the upper transmission section of the conveyor belt 4, so that it does not affect the normal transmission of the sheet metal. When the saw blades 7 descend below the conveyor belt 4, the saw blades 7 are positioned just between two adjacent second grinding rods 12. During cutting, the metal fragments generated during cutting will also splash onto the saw blades 7, and will also be affected by high temperature. Iron lumps form on the saw blade 7. After prolonged use, these lumps grow larger and larger. Since the saw blade 7 and the conveyor belt 4 are interleaved, the growing lumps can affect the normal interleaved movement of the saw blade 7 and the conveyor belt 4. By rotating several second grinding rods 12, when the saw blade 7 descends to allow the conveyor belt 4 to transport the sheet material, the saw blade 7 is positioned between two adjacent second grinding rods 12. The driving component 13 drives the several second grinding rods 12 to rotate synchronously, thereby grinding the two sides of the saw blade 7. This removes the iron lumps attached to its sides, preventing excessive accumulation of iron lumps from affecting the normal interleaved movement of the saw blade 7 and the conveyor belt 4, and ensuring the normal operation of the entire cutting machine.

[0030] like Figure 1 and Figure 4 As shown, in this embodiment, the driving component 13 includes a guide rod 1301 rotatably mounted on the frame 1. A pulley assembly 1302 connects the guide rod 1301 to another transmission roller 3. The guide rod 1301 is connected to several second grinding rods 12 via a bevel gear assembly 1303. When the transmission roller 3 drives the transmission belt 4 to transmit the material, the guide rod 1301 rotates under the linkage of the pulley assembly 1302. Under the linkage of the bevel gear assembly 1303, the second grinding rods 12 are synchronously transmitted, so that when the transmission belt 4 transmits the material above, the second grinding rods 12 grind the saw blade 7 below without interfering with each other, thus improving practicality.

[0031] like Figure 2 As shown, in this embodiment, the inner bottom walls of the mounting plate 6 and the frame 1 are both inclined. A collection frame 14 is provided at one end of the frame 1. Preferably, the collection frame 14 is located below the arc-shaped cover plate 10 and at the end of the inner bottom wall of the frame 1 with a lower inclination. The debris from the first grinding rod 8 will fall into the collection frame 14. By making the inner bottom walls of the mounting plate 6 and the frame 1 inclined, the debris from the second grinding rod 12 and the small pieces of waste that fall off during the conveyor belt 4 will also fall into the collection frame 14, thereby improving practicality.

[0032] like Figure 5 As shown, in this embodiment, a sponge strip 15 is provided at the end of the connecting plate 11 with a lower inclination. When the electric push rod 5 drives the connecting plate 11 to descend, the saw blade 7 also descends. At this time, the sponge strip 15 just overlaps with the top surface of the lower section of the conveyor belt 4. When the upper section of the conveyor belt 4 conveys the board, some small pieces of waste and debris will fall downwards and land on the top surface of the lower section of the conveyor belt 4. The sponge strip 15 scrapes and cleans the top surface of the lower section of the conveyor belt 4, preventing small pieces of waste and debris from affecting the transmission cooperation between the conveyor belt 4 and the conveyor roller 3, so as to ensure the normal and stable transmission of the conveyor belt 4.

[0033] like Figure 3 As shown, in this embodiment, the cutting mechanism 2 includes a first lead screw 201 rotatably mounted on a frame 1, a gantry frame 202 slidably mounted on the frame 1, a protrusion connected to the gantry frame 202 and threaded onto the first lead screw 201, a second lead screw 203 rotatably passing through the gantry frame 202, a movable block 204 threaded onto the second lead screw 203, and a laser cutting head 205 mounted on the movable block 204. Preferably, the frame 1 has two slide rails, and both ends of the gantry frame 202 are provided with sliding sleeves. The sliding sleeves are respectively slidably mounted on two slide rails. The first lead screw 201 and the second lead screw 203 are both driven to rotate by a motor. When the first lead screw 201 rotates, it drives the gantry frame 202 to slide, thereby adjusting the laser cutting head 205 to move along the length direction of the frame 1. When the second lead screw 203 rotates, it drives the movable block 204 to move, thereby driving the laser cutting head 205 to move along the width direction of the frame 1. This can meet more cutting needs and make it more convenient to cut and process sheet metal, thereby improving practicality.

[0034] The working process of this utility model is as follows: When cutting the sheet material, the electric push rod 5 is first activated, causing it to lower the saw blades 7 so that their tops are below the upper conveying surface of the conveyor belts 4. The sheet material is then placed on the top left end of several conveyor belts 4. The motor drives the several conveyor belts 4 to the right, and the conveying stops when the sheet material is transported to the middle of the frame 1. Then, the electric push rod 5 drives the several saw blades 7 to rise, lifting the sheet material and causing it to detach from the conveyor belts 4. At this point, the cutting mechanism 2 cuts the sheet material supported by the saw blades 7. After the board material supported by the saw blade 7 is cut, the electric push rod 5 drives the saw blade 7 to descend, thus placing the cut board material back onto the conveyor belt 4. At this time, the conveyor belt 4 transports the cut board material to the right end for unloading. The electric push rod 5 drives the saw blade 7 to rise and fall to switch its height with the conveyor belt 4. The conveyor belt 4 transports the board material, and the saw blade 7 lifts the board material for cutting. This ensures that there is not too much delay between loading, cutting and unloading, and the three processes are well connected, thereby improving processing efficiency.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A feeding device of a sheet metal laser cutting machine, characterized in that, include: A frame (1) is provided with a cutting mechanism (2) movably mounted on it. Both ends of the frame (1) are provided with rotatable transmission rollers (3). Several parallel transmission belts (4) are driven on the two transmission rollers (3). An electric push rod (5) is provided at the bottom of the frame (1). An installation plate (6) is provided at the piston end of the electric push rod (5) and the installation plate (6) is located between the upper and lower transmission sections of the transmission belts (4). Several saw blades (7) are provided on the installation plate (6) through support rods. The saw blades (7) are interleaved with the several transmission belts (4).

2. The feeding device of the sheet metal laser cutting machine according to claim 1, characterized in that: One end of the frame (1) is rotatably provided with a first grinding rod (8), and both the first grinding rod (8) and one of the transmission rollers (3) are fixed with a spur gear (9) and the teeth of the two spur gears (9) mesh.

3. The feeding device of the sheet metal laser cutting machine according to claim 2, characterized in that: One end of the frame (1) is connected to an arc-shaped cover plate (10), and the first grinding rod (8) is located inside the arc-shaped cover plate (10).

4. The feeding device of the sheet metal laser cutting machine according to claim 1, characterized in that: The inner walls of the frame (1) are provided with connecting plates (11) on opposite sides. A number of second grinding rods (12) are rotatably arranged between the two connecting plates (11). The number of second grinding rods (12) are respectively distributed with a number of saw blades (7). The frame (1) is provided with a driving component (13) for driving the number of second grinding rods (12) to rotate synchronously.

5. The feeding device of the sheet metal laser cutting machine according to claim 4, characterized in that: The drive unit (13) includes a guide rod (1301) rotatably mounted on the frame (1), and a pulley assembly (1302) is connected between the guide rod (1301) and another transmission roller (3). The guide rod (1301) is connected to several second grinding rods (12) via bevel gear assemblies (1303).

6. The feeding device of the sheet metal laser cutting machine according to claim 1, characterized in that: The inner bottom wall of the mounting plate (6) and the frame (1) are both inclined, and a collection frame (14) is provided at one end of the frame (1).

7. The feeding device of the sheet metal laser cutting machine according to claim 4, characterized in that: A sponge strip (15) is provided at the end of the connecting plate (11) with a low inclination.

8. The feeding device of the sheet metal laser cutting machine according to claim 1, characterized in that: The cutting mechanism (2) includes a first lead screw (201) rotatably mounted on a frame (1), a gantry frame (202) slidably mounted on the frame (1), a protrusion connected to the gantry frame (202) and threaded onto the first lead screw (201), a second lead screw (203) rotatably passing through the gantry frame (202), a movable block (204) threaded onto the second lead screw (203), and a laser cutting head (205) mounted on the movable block (204).

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