A feeding and discharging device for a carving machine

Abstract

The application discloses a feeding and discharging device for a carving machine and relates to the technical field of carving machines, which comprises an obliquely arranged feeding frame, driving rollers and driven rollers rotatably connected to the two ends of the feeding frame respectively, a rotary driving assembly arranged on the feeding frame, an output shaft of the rotary driving assembly fixedly connected to the center of the side surface of the driving roller, a conveying chain plate sleeved between the driving roller and the driven roller, the conveying chain plate comprising a plurality of discharging plates, adjacent discharging plates being rotatably connected through hinges, a partition plate fixedly arranged on one side of the working surface of each discharging plate, the partition plate being perpendicular to the discharging plate, and dust blowing mechanisms arranged on the two sides of the feeding frame and facing the conveying chain plate. The application can separate materials and has a dust removal effect, thereby ensuring the processing efficiency and effect.

Description

Technical Field

[0001] This invention relates to the field of sorting robot technology, and in particular to a loading and unloading device for an engraving machine. Background Technology

[0002] An engraving machine is a CNC machine that uses a high-speed rotating cutting tool to cut the surface of a workpiece. It is widely used in industries such as woodworking, advertising signage, mold manufacturing, and stone processing. Its working principle is based on a computer numerical control program that controls the movement trajectory and cutting depth of the cutting tool, thereby engraving the desired patterns, text, or three-dimensional shapes on the workpiece surface. It has advantages such as high processing accuracy, good repeatability, and a wide range of applicable materials.

[0003] However, existing engraving machines still have significant shortcomings in the loading and unloading process. Most engraving machines rely mainly on manual operation for workpiece loading and unloading. Operators need to place the workpieces to be processed one by one on the worktable and remove the finished products after processing. This is labor-intensive, inefficient, and difficult to meet production capacity requirements in mass production scenarios. The overall level of automation needs to be improved.

[0004] To address the aforementioned issues, several automated loading and unloading devices have emerged, using robotic arms or conveyor mechanisms to automatically pick up and place workpieces, thus improving production efficiency to some extent. However, these devices generally only focus on material handling and lack the ability to isolate materials and clean dust from the processing area, affecting processing efficiency and results. Summary of the Invention

[0005] In order to solve one of the above-mentioned technical problems, the purpose of this invention is to provide a loading and unloading device for a carving machine, which can separate materials and has a dust removal effect, thus ensuring processing efficiency and effect.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A loading and unloading device for an engraving machine includes an inclined feeding frame. A drive roller and a driven roller are rotatably connected to both ends of the feeding frame. A rotation drive assembly is mounted on the feeding frame, and the output shaft of the rotation drive assembly is fixedly connected to the center of the side of the drive roller. A conveyor chain plate is sleeved between the drive roller and the driven roller. The conveyor chain plate includes multiple feeding plates, and adjacent feeding plates are rotatably connected by hinges. A partition plate is fixedly mounted on one side of the working surface of each feeding plate, and the partition plate is perpendicular to the feeding plate. Dust blowing mechanisms facing the conveyor chain plate are provided on both sides of the feeding frame. The dust blowing mechanism includes a lifting assembly fixedly connected to the feeding frame. A high-pressure nozzle is connected to the top movable part of the lifting assembly, and the high-pressure nozzle is connected to an air pump through a flexible air supply pipe.

[0008] Preferably, the lifting assembly is an electric cylinder, the fixed part of the electric cylinder is fixedly connected to the feeding frame, and the movable part of the electric cylinder is connected to the high-pressure nozzle.

[0009] Preferably, the movable part of the electric cylinder is fixedly connected to an electric turntable, and the movable part of the electric turntable is fixedly connected to the outer surface of the high-pressure nozzle.

[0010] Preferably, the rotation drive component is a servo motor, and the output shaft of the servo motor is fixedly connected to the center of the side of the drive roller.

[0011] Preferably, both ends of the drive roller and the driven roller are rotatably connected to the feed frame via annular bearings.

[0012] Preferably, the angle between the feeding rack and the horizon is 25° to 75°.

[0013] Preferably, the feeding plate has a plurality of through holes evenly distributed.

[0014] Preferably, the bottom of the feeding rack is provided with a dust collection trough.

[0015] The present invention has the following beneficial effects:

[0016] 1. Automated loading and unloading reduces manual labor burden: This device uses a servo motor to drive the active roller, which in turn drives the feeding plate on the conveyor chain to rotate continuously, realizing the automatic conveying and loading / unloading of workpieces. Compared with traditional manual loading and unloading, it significantly reduces the labor intensity of operators, and at the same time, it can continuously supply materials in batch production scenarios, significantly improving production capacity.

[0017] 2. Material separation plates prevent collisions; each feeding plate has a perpendicular material separation plate fixed to one side of its working surface, and adjacent feeding plates are connected by hinges. The material separation plates physically isolate the workpieces in front and behind, preventing them from colliding or stacking due to vibration or inertia during transport, ensuring that the workpieces enter the engraving station in an orderly manner, and reducing processing abnormalities caused by material interference.

[0018] III. Dust-blowing mechanisms ensure processing quality; dust-blowing mechanisms are installed on both sides of the feeding rack, consisting of electric cylinder lifting components and high-pressure nozzles. The nozzles are connected to an air pump via flexible air supply pipes. The electric cylinders can adjust the nozzle height, allowing the high-pressure airflow to precisely target the workpiece surface on the conveyor chain, instantly blowing away dust and debris from the workpiece surface during loading and unloading. Combined with through holes in the unloading plate and dust collection troughs at the bottom of the feeding rack, dust can fall through the through holes and be collected in the dust collection troughs, forming a complete dust removal path and preventing dust from being stirred up again, affecting engraving accuracy and tool life.

[0019] IV. The inclined feeding rack utilizes gravity-assisted conveying; the angle between the feeding rack and the ground is set to 25 to 75 degrees. Under the action of gravity, the workpiece slides down the inclined plane naturally. Combined with the active conveying of the conveyor chain plate, it not only ensures that the material arrives smoothly at the engraving station, but also can be adjusted to accommodate workpieces of different sizes and weights, thus enhancing the applicability of the device.

[0020] 5. The combination of the lifting assembly and the electric turntable enhances the flexibility of dust blowing; the moving part of the electric cylinder is connected to the electric turntable, which in turn fixes the high-pressure nozzle. This combination allows the nozzle to not only move up and down, but also rotate horizontally to adjust the spray angle, enabling directional dust blowing on workpieces in different positions. Compared with fixed nozzles, it provides more comprehensive dust removal coverage and greater adaptability.

[0021] VI. Circular bearings ensure smooth transmission; both ends of the drive roller and driven roller are rotatably connected to the feed frame via circular bearings, which effectively reduces frictional resistance and wear when the rollers rotate, ensuring that the conveyor chain plate remains stable during long-term operation and reducing workpiece displacement or material drop caused by transmission vibration. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a side sectional view of an embodiment of the present invention.

[0024] Figure 2 This is a top view of an embodiment of the present invention (with the conveyor belt plate laid flat).

[0025] Figure 3 This is a schematic diagram of the feeding plate according to an embodiment of the present invention.

[0026] In the diagram: 1. Feeding rack; 201. Driven roller; 202. Driven roller; 203. Rotation drive assembly; 204. Conveyor chain plate; 241. Discharge plate; 242. Hinge; 243. Material separator plate; 301. Lifting assembly; 302. High-pressure nozzle; 303. Flexible air supply pipe; 304. Air pump; 305. Electric turntable; 4. Dust collection trough. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1 to 3 As shown, a loading and unloading device for an engraving machine includes an inclined feeding frame 1. A drive roller 201 and a driven roller 202 are rotatably connected to both ends of the feeding frame 1. A rotation drive assembly 203 is mounted on the feeding frame 1. The output shaft of the rotation drive assembly 203 is fixedly connected to the center of the side of the drive roller 201. A conveyor chain plate 204 is sleeved between the drive roller 201 and the driven roller 202. The conveyor chain plate 204 includes multiple feeding plates 241. Adjacent feeding plates 241 are rotatably connected to each other via hinges 242. A partition plate 243 is fixedly mounted on one side of the working surface of each feeding plate 241. The partition plate 243 is perpendicular to the feeding plate 241. Dust blowing mechanisms facing the conveyor chain plate 204 are mounted on both sides of the feeding frame 1. The dust blowing mechanism includes a lifting assembly 301 fixedly connected to the feeding frame 1. A high-pressure nozzle 302 is connected to the top movable part of the lifting assembly 301. The high-pressure nozzle 302 is connected to an air pump 304 via a flexible air supply pipe 303.

[0029] like Figures 1 to 3 As shown, the feeding frame 1 is placed at an angle on the ground, with the driving roller 201 and the driven roller 202 rotatably connected at both ends via ring bearings. The driving roller 201 is driven to rotate by the rotation drive assembly 203. A conveyor chain plate 204 is fitted between the driving roller 201 and the driven roller 202, and the chain plate is composed of multiple feeding plates 241 connected in sequence. The inclined placement of the feeding frame 1 allows the workpiece to slide naturally downwards along the incline under the action of gravity. At the same time, the rotation drive assembly 203 drives the driving roller 201 to rotate. The driving roller 201 drives the feeding plates 241 on the conveyor chain plate 204 to move continuously towards the engraving station through friction, realizing automatic conveying and continuous feeding of workpieces, and solving the problem of low efficiency of manual loading and unloading.

[0030] Adjacent feeding plates 241 are rotatably connected by hinges 242. This structure allows the feeding plates 241 to fold and bend over each other as they pass over the drive roller 201 and driven roller 202, ensuring that the chain plate can smoothly turn at the roller shaft without jamming. At the same time, each feeding plate 241 has a partition plate 243 fixed perpendicular to it on its working surface. The partition plate 243 forms a physical barrier between the front and rear workpieces, preventing the workpieces from colliding and stacking due to inertia or vibration during the conveying process, and ensuring that the workpieces enter the processing area one by one in an orderly manner.

[0031] Dust blowing mechanisms are installed on both sides of the feeding rack 1. Each dust blowing mechanism includes a lifting assembly 301 fixedly connected to the feeding rack 1. The top movable part of the lifting assembly 301 is connected to a high-pressure nozzle 302, which is connected to an air pump 304 via a flexible air supply pipe 303. The high-pressure airflow generated by the air pump 304 is delivered to the high-pressure nozzle 302 via the flexible air supply pipe 303. The lifting assembly 301 can adjust the height of the nozzle relative to the conveyor chain plate 204, allowing the high-pressure airflow to be directed at the workpiece surface for directional spraying, instantly removing dust and debris adhering to the surface before the workpiece enters the engraving station. Combined with the through holes on the unloading plate 241, the blown-off dust can fall through the through holes and be collected by the dust collection trough 4 at the bottom of the feeding rack 1, forming a complete dust removal path of blowing, falling, and collecting, preventing dust from being stirred up again and affecting engraving accuracy.

[0032] The lifting assembly 301 is preferably an electric cylinder, and the movable part of the electric cylinder is further fixedly connected to the electric turntable 305. The movable part of the electric turntable 305 is fixedly connected to the outer surface of the high-pressure nozzle 302. The electric cylinder is responsible for the up and down lifting of the nozzle, and the electric turntable 305 is responsible for the horizontal rotation of the nozzle. The two work together to allow the nozzle to adjust the spray position and angle in three-dimensional space, so as to accurately and directionally blow dust on the workpieces at different positions on the conveyor chain plate 204. Compared with a fixed nozzle, it has a wider coverage area and a more uniform dust removal effect.

[0033] The rotation drive assembly 203 is preferably a servo motor, and the output shaft of the servo motor is fixedly connected to the center of the side of the drive roller 201. The servo motor can precisely control the rotation speed and start / stop of the drive roller 201, thereby precisely controlling the conveying speed of the conveyor chain plate 204, so that the workpiece arrives at the engraving station at a stable rhythm, which is convenient for synchronizing with the processing rhythm of the engraving machine and improving the coordination of the overall automated production.

[0034] like Figures 1 to 3 As shown, the lifting assembly 301 is an electric cylinder. The fixed part of the electric cylinder is fixedly connected to the feeding frame 1, and the movable part of the electric cylinder is connected to the high-pressure nozzle 302. The electric cylinder is a linear drive device that can precisely control the extension and retraction stroke. Its fixed part is anchored on the feeding frame 1 to provide stable support, while the movable part drives the high-pressure nozzle 302 to move up and down in the vertical direction. By controlling the extension and retraction of the electric cylinder, the distance between the high-pressure nozzle 302 and the workpiece on the conveyor chain plate 204 can be adjusted so that the airflow spray height always matches the current position of the workpiece. When the workpiece size is large, the nozzle moves down closer to the workpiece surface to enhance the dust blowing force. When the workpiece is thin or needs to be avoided, the nozzle moves up to avoid airflow impact causing workpiece displacement, thereby achieving adaptive adjustment of the dust blowing height, ensuring the dust removal effect without interfering with the normal conveying of the workpiece.

[0035] like Figures 1 to 3As shown, an electric rotary table 305 is fixedly connected to the movable part of the electric cylinder, and the movable part of the electric rotary table 305 is fixedly connected to the outer surface of the high-pressure nozzle 302. The electric rotary table 305 can drive the high-pressure nozzle 302 to rotate horizontally around the vertical axis, allowing the spray angle of the nozzle to be freely adjusted within a certain range. Combined with the up-and-down lifting function of the electric cylinder, the high-pressure nozzle 302 has a two-degree-of-freedom adjustment capability of up-and-down and rotation, which can be used to directionally blow dust onto workpieces at any position on the conveyor chain 204. For example, when the workpiece is biased to one side of the chain, the electric rotary table 305 drives the nozzle to rotate horizontally so that the airflow is accurately directed to the surface of the workpiece on that side, avoiding the limitation of fixed nozzles that can only cover a fixed area, and greatly improving the adaptability of the dust blowing mechanism to workpieces in different positions.

[0036] like Figures 1 to 3 As shown, the rotation drive assembly 203 is a servo motor, and the output shaft of the servo motor is fixedly connected to the center of the side of the drive roller 201. A servo motor is a drive device capable of precisely controlling speed and angle. Its output shaft is directly connected to the center of the side of the drive roller 201, ensuring that the rotation of the drive roller 201 is strictly synchronized with the motor output. After receiving instructions from the engraving machine control system, the servo motor can precisely adjust the speed and start / stop sequence of the drive roller 201, thereby controlling the conveying speed of the conveyor chain 204 and the time when the workpiece arrives at the engraving station. This allows the feeding rhythm of the loading and unloading device to precisely match the processing rhythm of the engraving machine, avoiding workpiece accumulation due to excessively fast feeding or idle waiting due to excessively slow feeding, thus achieving coordinated operation between loading / unloading and engraving processing.

[0037] like Figures 1 to 3 As shown, both ends of the drive roller 201 and driven roller 202 are rotatably connected to the feed frame 1 via ring bearings. Ring bearings are special bearings that bear loads on both their inner and outer diameters. By placing them at both ends of the roller shaft, the roller shaft receives both radial and axial support during rotation. This structure effectively reduces frictional resistance during roller shaft rotation, minimizes wear during long-term operation, and ensures that the drive roller 201 and driven roller 202 maintain a stable axial position even at high speeds. It also prevents the conveyor chain plate 204 from slipping or vibrating due to roller shaft wobbling, thus ensuring that the workpiece does not shift or fall during conveying.

[0038] like Figures 1 to 3As shown, the angle between the feeder 1 and the horizon is 25° to 75°. After the feeder 1 is placed at an angle, the workpiece slides naturally downwards under the influence of the component of gravity along the inclined plane, achieving dual conveying in conjunction with the active drive of the conveyor chain plate 204. The angle is set in the range of 25° to 75°, with the lower limit of 25° ensuring that the workpiece has sufficient gravity to overcome friction and slide down, and the upper limit of 75° preventing the workpiece from accelerating out of the unloading plate 241 and falling due to excessive gravity. This angle range can be flexibly selected according to the weight and size of the workpiece, making the device adaptable to various processing scenarios.

[0039] like Figures 1 to 3 As shown, the feeding plate 241 has multiple through holes evenly distributed on it. The through holes provide a channel for dust to fall. When the high-pressure airflow of the dust blowing mechanism blows dust off the surface of the workpiece, the dust does not accumulate on the surface of the feeding plate 241, but falls directly through the through holes. At the same time, the through holes reduce the weight of the feeding plate 241 and lower the operating load on the conveyor chain plate 204. The even distribution of the through holes ensures consistent airflow across the entire working surface of the feeding plate 241, preventing localized dust accumulation from affecting the dust removal effect. A dust collection trough 4 is provided at the bottom of the feeding rack 1. Located below the feeding rack 1, the dust collection trough 4 is used to collect dust and debris falling from the through holes of the feeding plate 241. After falling through the through holes, the dust directly enters the dust collection trough 4, preventing it from scattering to the ground or being re-emitted into the air, thus avoiding secondary dust pollution of the engraving processing area at the source. The dust collection tank 4 can be cleaned regularly to collect and dispose of waste materials, keeping the working environment clean and extending the service life of the engraving machine's tools and guide rails.

[0040] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A loading and unloading device for a carving machine, characterized in that, The system includes an inclined feeding frame (1), with a drive roller (201) and a driven roller (202) rotatably connected to both ends of the feeding frame (1). A rotation drive assembly (203) is mounted on the feeding frame (1), and the output shaft of the rotation drive assembly (203) is fixedly connected to the center of the side of the drive roller (201). A conveyor chain plate (204) is sleeved between the drive roller (201) and the driven roller (202). The conveyor chain plate (204) includes multiple feed plates (241), and adjacent feed plates (241) are connected by hinges. 242) Rotary connection, a partition plate (243) is fixedly provided on one side of the working surface of each of the feeding plates (241). The partition plate (243) is perpendicular to the feeding plate (241). Dust blowing mechanism is provided on both sides of the feeding rack (1) facing the conveyor chain plate (204). The dust blowing mechanism includes a lifting component (301) fixedly connected to the feeding rack (1). The top movable part of the lifting component (301) is connected to a high-pressure nozzle (302). The high-pressure nozzle (302) is connected to an air pump (304) through a flexible air supply pipe (303).

2. The loading and unloading device for a carving machine according to claim 1, characterized in that, The lifting assembly (301) is an electric cylinder. The fixed part of the electric cylinder is fixedly connected to the feeding frame (1), and the movable part of the electric cylinder is connected to the high-pressure nozzle (302).

3. The loading and unloading device for a carving machine according to claim 2, characterized in that, The movable part of the electric cylinder is fixedly connected to an electric turntable (305), and the movable part of the electric turntable (305) is fixedly connected to the outer surface of the high-pressure nozzle (302).

4. The loading and unloading device for a carving machine according to claim 3, characterized in that, The rotation drive assembly (203) is a servo motor, and the output shaft of the servo motor is fixedly connected to the center of the side of the drive roller (201).

5. The loading and unloading device for a carving machine according to claim 4, characterized in that, Both ends of the active roller (201) and the driven roller (202) are rotatably connected to the feed frame (1) via ring bearings.

6. The loading and unloading device for a carving machine according to claim 1, characterized in that, The angle between the feed rack (1) and the horizon is 25° to 75°.

7. The loading and unloading device for a carving machine according to claim 1, characterized in that, The feeding plate (241) has multiple through holes evenly distributed on it.

8. The loading and unloading device for a carving machine according to claim 7, characterized in that, The bottom of the feeding rack (1) is provided with a dust collection trough (4).

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