A stacking servo feeding device

Abstract

This utility model discloses a stacking servo feeding device, including a belt feeder frame connected to the feeding end of a CNC drilling device. An adjustable height limiting mechanism is installed above the belt feeder frame. This stacking servo feeding device, through a liftable backplate in the height limiting mechanism and in conjunction with a height adjustment component, can precisely adjust the distance between the bottom of the backplate and the belt conveyor surface according to the workpiece thickness, leaving space for only a single workpiece to pass through. This allows batches of panel furniture workpieces of the same size to be directly stacked on the belt conveyor surface, eliminating the need to wait for the previous workpiece to finish processing and significantly reducing loading waiting time. Simultaneously, photoelectric sensors on the belt feeder frame detect the position of the workpiece during transportation in real time, feeding the position information back to the servo motor. The servo motor then precisely controls the belt's running distance, preventing multiple workpieces from simultaneously entering the drilling device and causing equipment jamming.

Description

Technical Field

[0001] This utility model relates to the field of panel furniture technology, and in particular to a stacking servo feeding device. Background Technology

[0002] With the rapid development of the panel furniture industry, panel CNC drilling equipment is increasingly favored by the market due to its high degree of automation and high processing efficiency. This type of equipment is typically equipped with conveyors before and after it to achieve automatic feeding and unloading of workpieces, ensuring the continuity of the processing flow and reducing manual intervention, while also helping to ensure the personal safety of operators.

[0003] However, existing feeding and conveying methods still have certain limitations. In practice, workers typically need to place workpieces onto the conveyor one by one, and must wait for the previous workpiece to be processed before placing the next one. This intermittent feeding method not only increases the labor intensity of workers but also limits the further improvement of equipment processing efficiency to some extent. Especially when batch processing small workpieces of the same size, repetitive manual handling operations are inefficient and difficult to meet the requirements of modern production lines for continuity and automation.

[0004] Therefore, it is necessary to propose a new type of conveying device that enables stable stacking and orderly supply of multiple workpieces within a limited space, thereby reducing the labor intensity of workers and improving equipment utilization and production cycle. Utility Model Content

[0005] This invention provides a stacking servo feeding device, which can solve the problem mentioned in the background art that the repetitive manual handling operation is inefficient and difficult to adapt to the requirements of modern production lines for continuity and automation when batch processing small workpieces of the same size.

[0006] A stacking servo feeding device is used in a CNC drilling machine for panel furniture. The CNC drilling machine includes a CNC drilling device and a conveyor located at the end of the CNC drilling device. The stacking servo feeding device includes a belt feeder frame connected to the feed end of the CNC drilling device. An adjustable height limiting mechanism is provided above the belt feeder frame. The height limiting mechanism includes a liftable back plate and a height adjustment component for driving the back plate to lift. The belt feeder frame is also equipped with photoelectric sensors for detecting the position of the workpiece.

[0007] Preferably, the belt feeder frame is provided with a drive roller and a driven roller, and a belt is provided on the drive roller and the driven roller. The drive roller is connected to a servo motor through a reducer.

[0008] Preferably, the height adjustment assembly includes a handwheel, a height adjustment screw, and an adjustment nut. The handwheel is connected to the height adjustment screw via a handwheel shaft. The height adjustment screw cooperates with the adjustment nut. The adjustment nut is fixedly connected to the back plate via a connecting seat.

[0009] Preferably, the back plate achieves vertical sliding through the cooperation of a slider and a guide rail, and the guide rail is fixed to the aluminum frame by a slider pad.

[0010] Preferably, the aluminum frame is slidably mounted on the optical shaft by a box-type slider and locked in position by a clamping block. The optical shaft is fixed to the aluminum plates on both sides of the belt feeder frame by an optical shaft support seat.

[0011] Preferably, a side support plate is installed on the side of the belt feeder frame, and bakelite is installed on both the side support plate and the back plate on the side facing the workpiece.

[0012] Preferably, the driven roller is mounted on the driven mounting plate via bearings, and an adjustable adjustment block is provided next to the driven mounting plate for adjusting the tension of the belt.

[0013] Preferably, at least two photoelectric sensors are provided, which are respectively mounted on both sides of the frame above the active roller via photoelectric mounting plates to form a through-beam detection structure.

[0014] Preferably, the belt feeder frame is provided with a pallet frame for supporting stacked workpieces.

[0015] Preferably, a sliding plate is installed on one side of the aluminum frame, and the sliding plate is connected to the optical axis through a sliding block and a locking block. The bottom support legs of the belt feeder frame are equipped with height-adjustable feet, and an electrical control box is installed at the bottom of the belt feeder frame.

[0016] The beneficial effects of this utility model are: This stacking servo feeding device, through a height-limiting mechanism with a liftable backplate and height adjustment components, can precisely adjust the distance between the bottom of the backplate and the belt conveyor surface according to the workpiece thickness, leaving space for only a single workpiece to pass through. This allows batches of panel furniture workpieces of the same size to be directly stacked on the belt conveyor surface, eliminating the need to wait for the previous workpiece to finish processing and significantly reducing loading time. It also avoids equipment jamming caused by multiple workpieces entering the drilling device simultaneously, ensuring continuous processing. The photoelectric sensor on the belt feeder frame can detect the workpiece's position in real time during transport and feed this information back to the servo motor, which then precisely controls the belt's running distance. By combining the belt feeder frame with the height-limiting mechanism, photoelectric sensor position detection, and servo motor distance control, the original conveyor's feeding function is optimized, thereby improving the processing flow of the CNC drilling device. Attached Figure Description

[0017] Figure 1 Schematic diagram of the stacking servo feeding device provided by this utility model Figure 1 ; Figure 2 Schematic diagram of the detection of the stacking servo feeding device provided by this utility model Figure 2 ; Figure 3 for Figure 1 Schematic diagram of the structure of the medium belt feeder frame; Figure 4 for Figure 2 Schematic diagram of the height adjustment component; Figure 5 for Figure 4 Schematic diagram of the structure of the middle slider pad; Figure 6 for Figure 1 A schematic diagram of the structure of the photoelectric sensor; Figure 7 for Figure 2 Schematic diagram of the middle box type slider; Figure 8 for Figure 1 Schematic diagram of the middle sliding plate; Figure 9 for Figure 1 Schematic diagram of the mounting plate of Zhongguang Optoelectronics; Figure 10 This is an installation diagram of the stacking servo feeding device provided by this utility model; Figure 11 This is a schematic diagram of the installation of the existing device.

[0018] Explanation of reference numerals in the attached figures: 1. Belt feeder frame; 2. CNC drilling equipment for panel furniture; 3. Height limiting mechanism; 4. Photoelectric sensor; 5. Driven roller; 6. Driven roller; 7. Belt; 8. Reducer; 9. Servo motor; 10. Aluminum frame; 11. Box-type slider; 12. Optical shaft; 13. Clamping block; 14. Optical shaft support; 15. Aluminum plate; 16. Side support plate; 17. Bakelite; 18. Bearing; 19. Driven mounting plate; 20. Adjusting block; 21. Photoelectric mounting plate 22. Pallet frame; 23. Sliding plate; 24. Sliding block; 25. Locking block; 26. Foot cup; 27. Electrical control box; 201. CNC drilling device; 202. Conveyor; 203. Industrial computer; 31. Back plate; 32. Height adjustment assembly; 33. Limit slider; 34. Guide rail; 35. Slider pad; 321. Handwheel; 322. Height adjustment screw; 323. Adjusting nut; 324. Handwheel shaft; 325. Connecting seat; 326. Fixed seat. Detailed Implementation

[0019] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0020] like Figure 1-6 As shown, this utility model proposes a stacking servo feeding device for a CNC drilling machine 2 for panel furniture. The CNC drilling machine 2 for panel furniture includes a CNC drilling device 201 and a conveyor 202 located at the end of the CNC drilling device 201. The stacking servo feeding device includes a belt feeder frame 1, which is connected to the feeding end of the CNC drilling device 201. An adjustable height limiting mechanism 3 is provided above the belt feeder frame 1. The height limiting mechanism 3 includes a liftable back plate 31 and a height adjustment component 32 for driving the back plate 31 to lift. A photoelectric sensor 4 for detecting the position of the workpiece is also provided on the belt feeder frame 1.

[0021] In the technical solution of this utility model, the height-limiting mechanism 3 has a liftable back plate 31, which, together with the height adjustment component 32, can precisely adjust the distance between the bottom of the back plate 31 and the belt conveyor surface according to the thickness of the workpiece, leaving only space for a single workpiece to pass through. This allows a batch of panel furniture workpieces of the same size to be directly stacked on the belt conveyor surface, without waiting for the previous workpiece to be processed. This significantly reduces the waiting time for feeding and avoids equipment jamming caused by multiple workpieces entering the drilling device at the same time, ensuring the continuity of the processing flow. The photoelectric sensor 4 on the belt feeder frame 1 can detect the position of the workpiece in real time during transportation and feed the position information back to the servo motor 9. The servo motor 9 then precisely controls the running distance of the belt 7. By using the belt feeder frame 1 in conjunction with the height-limiting mechanism 3 to limit the height of passage, the photoelectric sensor 4 to detect the position, and the servo motor 9 to control the running distance, the feeding function of the original conveyor 202 is optimized, thereby optimizing the processing flow of the CNC drilling device 201.

[0022] Specifically, the height adjustment component 32 supports the adjustment of the lifting stroke of the back panel 31 as needed, which can cover the conveying needs of common thin panels (such as 9mm decorative panels) to thick boards (such as 60mm cabinet side panels) in the panel furniture industry. It can quickly switch the processing of different specifications of workpieces without changing the adapter parts, making it more adaptable and especially suitable for customized panel furniture production scenarios with multiple varieties and small batches.

[0023] At least two photoelectric sensors 4 are installed on both sides of the frame above the drive roller 5 via photoelectric mounting plates 21, forming a photoelectric detection structure. The photoelectric sensors 4 on the belt feed frame 1 can detect the position of the workpiece in real time during the conveying process and feed the signal back to the industrial control computer 203 of the CNC drilling equipment 2 for panel furniture. After the CNC drilling device 201 finishes processing the previous workpiece, it can trigger the stacking servo feeding device to start through the sensor signal, accurately conveying the next workpiece. This achieves automated linkage of feeding as soon as processing is completed, avoiding rhythm disorder caused by manual judgment of feeding timing, and further improving the overall processing speed of the equipment. The workpiece does not need to be labeled or scanned. Processing can be carried out simply by inputting the size of the workpiece on the industrial control computer. It is efficient and economical.

[0024] like Figure 1 and Figure 3 As shown, the belt feeder frame 1 is equipped with a drive roller 5 and a driven roller 6, and a belt 7 is installed on the drive roller 5 and the driven roller 6. The drive roller 5 is connected to the servo motor 9 through a reducer 8. The transmission structure of the drive roller 5 connected to the servo motor 9 through the reducer 8 can accurately adjust the output speed and torque of the drive roller 5 according to the material, weight and thickness of the panel furniture workpiece. The servo motor 9 can receive the workpiece size signal sent by the CNC drilling device 201, and combine it with the workpiece position information detected by the photoelectric sensor 4 to accurately control the number of rotations of the drive roller 5, thereby realizing the precise control of the conveying distance of the belt 7, avoiding the processing blind zone or the workpiece exceeding the processing range caused by the deviation of the conveying distance, and greatly improving the coordination accuracy of conveying and processing.

[0025] The servo motor 9 and photoelectric sensor 4 are electrically connected to the industrial computer 203 on the CNC drilling device 201.

[0026] like Figure 4 and Figure 5 As shown, the height adjustment assembly 32 includes a handwheel 321, a height adjustment screw 322, and an adjustment nut 323. The handwheel 321 is connected to the height adjustment screw 322 via a handwheel shaft 324. The height adjustment screw 322 engages with the adjustment nut 323. The adjustment nut 323 is fixedly connected to the back plate 31 via a connecting seat 325. The handwheel shaft 324 is mounted on a fixed seat 326 via a thrust ball bearing. The fixed seat 326 is mounted on the aluminum frame 10. Through the threaded engagement between the height adjustment screw 322 and the adjustment nut 323, when the operator rotates the handwheel 321, the height adjustment screw 322 drives the adjustment nut 323 to move up and down via the thread, thereby driving the back plate 31 to rise and fall. For workpieces of different thicknesses, the distance between the bottom of the back plate 31 and the belt conveyor surface can be precisely adjusted to ensure that only a single workpiece is allowed to pass through, avoiding problems such as "multiple pieces being conveyed simultaneously and jamming" or "workpieces tilting due to excessive spacing" caused by height limitation errors, and ensuring the orderly conveying of batch stacked workpieces.

[0027] Specifically, the back plate 31 slides vertically through the cooperation of the limiting slider 33 and the guide rail 34. The guide rail 34 is fixed to the aluminum frame 10 through the slider pad 35. The guide rail 34 limits the limiting slider 33 and the back plate 31, thereby enhancing the stability of the back plate 31 moving up and down.

[0028] like Figure 1 and Figure 7 As shown, the aluminum frame 10 is slidably mounted on the optical shaft 12 via a box-type slider 11 and locked in position by a clamping block 13. The optical shaft 12 is fixed to the aluminum plates 15 on both sides of the belt feeder frame 1 via an optical shaft support seat 14. The aluminum frame 10 is slidably mounted on the optical shaft 12 via the box-type slider 11, forming a lateral adjustment structure for optical shaft guidance and slider sliding. By pushing the aluminum frame 10 to slide laterally along the optical shaft 12, the relative positions of components such as the height limiting mechanism 3 and the side support plate 16 on the aluminum frame 10 with the workpiece are adjusted to ensure that the height limiting mechanism 3 can accurately correspond to the workpiece conveying path.

[0029] like Figure 1 and Figure 2 As shown, a side support plate 16 is installed on the side of the belt feeder frame 1, and bakelite 17 is installed on both the side support plate 16 and the back plate 31 facing the workpiece. The side support plate 16 on the side of the belt feeder frame 1 forms a transverse guide channel, so that the workpiece is always in the middle of the channel during the conveying process, avoiding transverse movement caused by belt vibration and workpiece center of gravity shift, ensuring that the workpiece moves in a straight line from the conveying starting point to the feed port of the CNC drilling device 201. The bakelite 17 can prevent the workpiece from being scratched.

[0030] like Figure 1 and Figure 3 As shown, the driven roller 6 is mounted on the driven mounting plate 19 via bearing 18. An adjustable adjusting block 20 is provided next to the driven mounting plate 19 for adjusting the tension of the belt 7. The driven roller 6 is mounted on the driven mounting plate 19 via bearing 18, which significantly reduces the resistance when the driven roller 6 rotates. By adjusting the distance between the adjusting block 20 and the driven mounting plate 19, the driven mounting plate 19 can be pushed to drive the driven roller 6 to move laterally, thereby changing the distance between the driving roller 5 and the driven roller 6, and thus adjusting the tension of the belt 7.

[0031] like Figure 1 and Figure 3As shown, the belt feeder frame 1 is equipped with a pallet frame 22 for supporting stacked workpieces. The pallet frame 22 is fixed to the belt feeder frame 1 and hidden under the belt 7. It is made of high-strength steel or thickened aluminum and has excellent load-bearing capacity. It can directly bear the weight of the stacked workpieces, avoiding the problem of the belt 7 sagging in the middle and local deformation caused by the long-term pressure of multiple workpieces. It ensures that the belt 7 always maintains a flat conveying surface, completely solves the problem of collapse when multiple workpieces are stacked, and provides a structural foundation for batch feeding.

[0032] Among them, a sliding plate 23 is installed on one side of the aluminum frame 10. The sliding plate 23 is connected to the optical axis 12 through a sliding block 24 and a locking block 25. The bottom support legs of the belt feeder frame 1 are equipped with adjustable height feet 26. An electrical control box 27 is installed at the bottom of the belt feeder frame 1.

[0033] Working principle: Operators neatly stack multiple identical panel furniture workpieces onto belt 7. The bottom of the workpieces is supported by a support frame 22 hidden beneath belt 7. The support frame 22 evenly distributes the weight of the stacked workpieces, preventing belt 7 from sagging or deforming due to excessive load. As belt 7 rotates, the stacked workpieces move towards the CNC drilling device 201. When the bottommost workpiece contacts the back plate 31, the height limit effect of the back plate 31 blocks the stacked workpieces above, allowing only the first workpiece to pass through the gap between the bottom of the back plate 31 and belt 7. At this time, the photoelectric sensor 4 located above the drive roller 5 detects the workpiece position through a photoelectric sensor and sends a "workpiece in place" signal to the controller inside the control box 27. The controller inside the control box 27 then adjusts the position of the workpiece according to its length. The servo motor 9 is precisely adjusted to control the rotation parameters, ensuring that the distance traveled by the belt 7 is exactly equal to the length of the workpiece. Once the workpiece is fully inside the processing channel of the CNC drilling device 201, the servo motor 9 stops, completing a single-piece conveying cycle. After the workpiece enters the CNC drilling device 201, the device begins processing and simultaneously sends a "processing in progress" signal to the controller in the electrical control box 27. The controller in the electrical control box 27 does not initiate the next conveying cycle. When the CNC drilling device 201 completes processing and sends the workpiece away from the discharge end, it sends a "feed allowed" signal to the controller in the electrical control box 27 again, triggering the servo motor 9 to start again, repeating the "belt operation - photoelectric detection - precise stop" process to achieve continuous automated operation of "feeding immediately upon completion of processing".

[0034] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A stacking servo feeding device for a CNC drilling machine (2) for panel furniture, the CNC drilling machine (2) for panel furniture comprising a CNC drilling device (201) and a conveyor (202) disposed at the end of the CNC drilling device (201), characterized in that, include: A belt feeder frame (1) is connected to the feed end of the CNC drilling device (201), and an adjustable height limiting mechanism (3) is provided above the belt feeder frame (1). The height limiting mechanism (3) includes a liftable back plate (31) and a height adjustment component (32) that drives the back plate (31) to rise and fall. The belt feeder frame (1) is also equipped with a photoelectric sensor (4) for detecting the position of the workpiece. The belt feeder frame (1) is provided with a drive roller (5) and a driven roller (6), and a belt (7) is provided on the drive roller (5) and the driven roller (6). The drive roller (5) is connected to a servo motor (9) through a reducer (8).

2. The stacking servo feeding device as described in claim 1, characterized in that, The height adjustment assembly (32) includes a handwheel (321), a height adjustment screw (322), and an adjustment nut (323). The handwheel (321) is connected to the height adjustment screw (322) via a handwheel shaft (324). The height adjustment screw (322) cooperates with the adjustment nut (323). The adjustment nut (323) is fixedly connected to the back plate (31) via a connecting seat (325). The handwheel shaft (324) is mounted on a fixed seat (326), and the fixed seat (326) is mounted on the aluminum frame (10).

3. The stacking servo feeding device as described in claim 2, characterized in that, The back plate (31) slides vertically through the cooperation of the limiting slider (33) and the guide rail (34), and the guide rail (34) is fixed on the aluminum frame (10) through the slider pad (35).

4. The stacking servo feeding device as described in claim 3, characterized in that, The aluminum frame (10) is slidably mounted on the optical axis (12) by a box-type slider (11) and locked in position by a clamping block (13). The optical axis (12) is fixed on the aluminum plates (15) on both sides of the belt feeder frame (1) by an optical axis support seat (14).

5. The stacking servo feeding device as described in claim 3, characterized in that, The side of the belt feeder frame (1) is equipped with a side support plate (16), and bakelite (17) is installed on the side of the side support plate (16) and the back plate (31) facing the workpiece.

6. The stacking servo feeding device as described in claim 1, characterized in that, The driven roller (6) is mounted on the driven mounting plate (19) via a bearing (18). An adjustable adjustment block (20) is provided next to the driven mounting plate (19) for adjusting the tension of the belt (7).

7. The stacking servo feeding device as described in claim 1, characterized in that, At least two photoelectric sensors (4) are provided, which are respectively installed on both sides of the frame above the active roller (5) through photoelectric mounting plate (21) to form a photoelectric detection structure.

8. The stacking servo feeding device as described in claim 1, characterized in that, The belt feeder frame (1) is equipped with a pallet frame (22) for supporting stacked workpieces.

9. The stacking servo feeding device as described in claim 3, characterized in that, A sliding plate (23) is installed on one side of the aluminum frame (10), and the sliding plate (23) is connected to the optical axis (12) through a sliding block (24) and a locking block (25).

10. The stacking servo feeding device as described in claim 1, characterized in that, The bottom support legs of the belt feeder frame (1) are equipped with height-adjustable feet (26), and the bottom of the belt feeder frame (1) is equipped with an electrical control box (27).

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