PCB drill bit cutting edge rod excess material cutting equipment
By designing a PCB drill bit edge rod residual material cutting equipment including feeding assembly and cutting assembly, the problems of non-continuous cutting and material skew in traditional equipment are solved, and continuous cutting and efficient production are achieved.
Patent Information
- Application Number
- CN202510490252.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2025-06-27
AI Technical Summary
Traditional cutting equipment has an efficiency bottleneck when processing the residual material of PCB drill bit edge rods. Discontinuous cutting leads to low equipment utilization, and axial deflection or circumferential rolling during cutting due to material vibration or inertia, which affects the subsequent drill bit sharpening accuracy.
A PCB drill bit edge rod residual material cutting equipment including feeding assembly and cutting assembly is designed. The feeding tray and feeding pipe are used to achieve continuous feeding and transport of materials. The material is fixed and positioned through the pressing belt and guide roller to ensure that the material does not deflect and roll during cutting.
Continuous cutting of residual material of PCB drill bit edge rod is achieved, operating efficiency is improved, product production yield is ensured, and cutting surface errors are avoided due to skew and rolling.
Smart Images
Figure CN120206576A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of machining equipment, and particularly relates to a device for cutting the waste material of the edge of a PCB drill bit rod. Background Art
[0002] In the complex manufacturing process of modern printed circuit boards (PCBs), the drill bit edge rod, as the core component for realizing drilling processing, its performance directly affects the quality and efficiency of the entire PCB manufacturing. With the continuous rapid development of electronic products towards high density and high precision, the precision requirements for PCB drilling have been raised to the micron or even nanometer level. At the same time, the production efficiency also needs to be greatly improved to meet the growing market demand. In this context, the production process of the drill bit edge rod is particularly crucial, and it needs to go through multiple extremely fine and rigorous processes, including cutting, grinding, coating, etc.
[0003] The traditional cutting equipment has the following technical defects in the treatment of the waste material of the PCB drill bit edge rod: the efficiency bottleneck caused by non - continuous cutting. Existing equipment mostly adopts single - time or intermittent cutting modes, and needs to frequently stop to adjust the material position, resulting in low equipment utilization rate. For example, a certain model of equipment takes 8 - 12 seconds for each single - time cutting, and 60% of the time is used for material calibration and clamping, which is difficult to match the continuous feeding requirements of the automated production line. Moreover, when cutting, since the waste material of the edge rod is mostly cylindrical or irregular polygon in cross - section, it is easy to generate axial deflection (the measured deflection angle reaches 3° - 5°) or circumferential rolling due to vibration or inertia during the conveying process. The traditional feeding mechanism relies on friction wheels or simple clamping devices and lacks dynamic deviation correction ability, resulting in the perpendicularity error between the cutting surface and the axis exceeding 0.1 mm, directly affecting the subsequent grinding accuracy of the drill bit. Summary of the Invention
[0004] In order to solve the above problems, the embodiment of the present invention provides a device for cutting the waste material of the PCB drill bit edge rod, which can complete the continuous cutting operation of the waste material of the PCB drill bit edge rod, improve the operation efficiency, and at the same time can position the material during the conveying process through the feeding component to ensure that the product will not be deflected and rolled during cutting, and improve the production yield of the product.
[0005] In order to achieve the above object, the embodiment of the present invention specifically adopts the following technical solutions: A device for cutting the waste material of the PCB drill bit edge rod includes a frame, an installation plate is arranged on the frame, a feeding component and a cutting component are arranged on the side wall of the installation plate, a loader is arranged on one side of the feeding component, a feeding pipe is arranged between the loader and the feeding component, the feeding component includes a feeding disk, a material groove for cooperating with the feeding pipe is arranged on the side wall of the feeding disk, a discharge pipe is arranged at the end of the feeding pipe close to the feeding disk, and a pushing device for applying a forward thrust to the material is arranged on the side wall of the discharge pipe.
[0006] As a further improvement of the above technical solution:
[0007] A limiting plate is arranged above the feed tray, and a receiving tray is arranged below the feed tray. A feeding area is formed on the feed tray, which is located between the limiting plate and the receiving tray and is used in conjunction with the cutting assembly. A pressing device corresponding to the position of the feeding area is arranged on one side of the feed tray.
[0008] The pressing device comprises a pressing belt, and the mounting plate is provided with guide rollers for mounting the pressing belt. The number of the guide rollers is at least two and they are respectively located outside the limiting plate and the receiving tray.
[0009] A guide tooth is arranged on the side of the pressing belt facing the guide roller, and a limiting groove used in cooperation with the guide tooth is arranged on the side wall of the guide roller.
[0010] The size of the limiting groove is the same as that of the material trough.
[0011] The cutting assembly comprises a driving disc horizontally distributed with the feeding disc, and cutting discs are arranged on two outer side walls of the driving disc, and a avoiding groove corresponding to the position of the feeding disc is formed between the two cutting discs.
[0012] A baffle is arranged on the side of the feeding tray facing away from the pushing device.
[0013] The pushing device comprises a mounting bracket, an air blowing pipe is arranged on the upper part of the mounting bracket, and a guide groove corresponding to the position of the air blowing pipe is arranged at the front end of the discharge pipe.
[0014] The opening of the guide groove faces the cutting assembly, and the length of the opening is half of the circumference of the cross section of the guide groove.
[0015] The feeder is a vibrating feeder, and a delivery hose connected to a discharge pipe is provided at the discharge end of the feeder.
[0016] The beneficial effects of the embodiment of the present invention are as follows: the PCB drill bit cutting edge bar excess material cutting device comprises a frame, a mounting plate is arranged on the frame, a feeding assembly and a cutting assembly are arranged on the side wall of the mounting plate, a feeder is arranged on one side of the feeding assembly, a feeding pipe is arranged between the feeder and the feeding assembly, and a pushing device for applying a forward thrust to the material is arranged on the side wall of the discharge pipe, and the pushing device can accelerate the speed of the material entering the feeding tray, improve the feeding efficiency, and cooperate with the feeding tray to realize continuous feeding and conveying operations;
[0017] A limiting plate is installed above the feeding tray, a receiving tray is installed below it, and the material is fixed by a pressure belt on the outside. At the same time, a baffle is installed on the side away from the pushing device to limit the material, ensuring that the area of the material that needs to be retained can be fixed in the trough. The remaining material to be cut is located on both sides. When the feeding tray rotates to the cutting assembly, the cutting operation is completed. The whole process has strong continuity, and the production yield can be ensured while continuously operating by accurately positioning the material. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;
[0019] Figure 2 is a schematic diagram of the installation structure of the feeding component of the present invention;
[0020] Figure 3 is Figure 2 an enlarged schematic diagram of part A in
[0021] Figure 4 is a schematic diagram of the installation structure of the feeding tray in the present invention;
[0022] Figure 5 is a schematic diagram of the structure of the cutting assembly;
[0023] Figure 6 is a schematic diagram of the installation structure of the pressure belt in the present invention;
[0024] Figure 7 is a schematic diagram of the structure of the feeding tray in the present invention;
[0025] Figure 8 is a schematic diagram of the structure of the pressure belt in the present invention.
[0026] In the figure: 1, frame; 2, mounting plate; 3, loader; 4, feeding pipe; 5, feeding tray; 6, trough; 7, discharge pipe; 8, limiting plate; 9, receiving tray; 10, feeding area; 11, pressure belt; 12, guide roller; 13, guide teeth; 14, limiting groove; 15, drive disk; 16, cutting tool disk; 17, avoidance groove; 18, baffle; 19, mounting bracket; 20, air blowing pipe; 21, guide groove; 22, conveying hose. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.
[0028] As Figures 1-4As shown in the figure, the PCB drill bit edge bar waste cutting equipment of this embodiment includes a frame 1. A vertically placed mounting plate 2 is provided on the frame 1. A feeding component and a cutting component are provided on the side wall of the mounting plate 2. Through the feeding component and the cutting component, the cutting operation of the drill bit edge bar can be completed, and the waste materials at both ends are continuously cut, improving the operation efficiency. A feeder 3 is connected to one side of the feeding component. A feeding pipe 4 is installed between the feeder 3 and the feeding component. Through the feeding pipe 4, materials can be continuously put into the feeding component. The feeding component includes a feeding disk 5 located on the mounting plate 2. A material groove 6 matching with the feeding pipe 4 is provided on the side wall of the feeding disk 5. The number of the material grooves 6 is multiple and they are evenly distributed along the circumferential direction of the feeding disk 5. The materials slide into the material groove 6 through the feeding pipe 4 and then rotate with the feeding disk 5. When rotating and passing through the cutting component, the waste materials at both ends are cut off. One end of the feeding pipe 4 close to the feeding disk 5 is provided with a discharge pipe 7. A pushing device for applying a forward thrust to the materials is installed on the side wall of the discharge pipe 7. The pushing device includes a mounting bracket 19 located outside the feeding disk 5. The lower part of the mounting bracket 19 is connected to the frame 1, and the upper part is installed with a blowing pipe 20 through a clamp. A guiding groove 21 corresponding to the position of the blowing pipe 20 is opened at the front end of the discharge pipe 7. The opening of the guiding groove 21 faces the cutting component, that is, the opening direction is the same as the rotation direction of the feeding disk 5. The opening length of the guiding groove 21 is half of the cross-sectional perimeter of the guiding groove 21. The guiding groove 21 is a semi-open design and its length is greater than the length of the material. The advantage of this design is that when the material collides with the side wall of the feeding disk 5 and fails to enter the material groove 6, it can fall from the opening. A recovery groove is installed on one side of the feeding disk below the blowing pipe 20 for collecting the materials falling in this step. The blowing pipe 20 blows high-pressure air on the opening side to accelerate the conveying of the materials. On the basis of the feeder 3 pushing the materials forward through the extrusion between the materials, the speed of the materials entering the material groove 6 is increased, the continuity of the material conveying is improved, and it is avoided that the materials fall due to the slow conveying speed and collide with the partition between the two material grooves 6, affecting the efficiency of the cutting operation.
[0029] As Figures 6-8As shown in the figure, a limit plate 8 is installed above the feeding tray 5. A positioning seat connected to the mounting plate 2 is provided inside the limit plate 8. An arc-shaped avoidance groove that matches the contour of the feeding tray 5 is provided at the lower part of the limit plate 8. The function of the limit plate 8 is to limit the material above the material groove 6 to prevent the material from falling off. A receiving tray 9 is installed below the feeding tray 5. The front end of the receiving tray 9 is provided with an arc-shaped extension plate that matches the outer contour of the feeding tray 5. A feeding area 10 is formed on the feeding tray 5 between the limit plate 8 and the receiving tray 9 and is used in cooperation with the cutting assembly. When the material rotates with the feeding tray 5 to this area, the cutting assembly cuts the excess at both ends of the material. After cutting, the material rotates into the receiving tray 9 below the feeding tray 5. A pressing device corresponding to the position of the feeding area 10 is provided on one side of the feeding tray 5, which is used to limit the material to prevent the material from falling off and skewing during the cutting process, resulting in unqualified product dimensions after cutting. During cutting, the feeding tray 5 and the cutting tool disc 16 are installed side by side and rotate in opposite directions. When the material comes into the feeding area 10 as the feeding tray rotates, the pressing belt 11 will apply a pressure towards the feeding tray 5 to ensure that the material does not skew. When the material rotates into contact with the cutting tool disc 16, that is, at the rightmost end of the feeding tray, the cutting tool disc 16 will cut off the excess at both ends of the material. After cutting, the excess falls off, and the material continues to move forward with the feeding tray. When it reaches the lowermost end, the material will fall into the receiving tray 9 for recycling.
[0030] The pressing device includes a pressing belt 11. The pressing belt 11 is made of rubber or wear-resistant PP material. Guide rollers 12 for installing the pressing belt 11 are provided on the mounting plate 2. The number of guide rollers 12 is four, and two of them are respectively located outside the limit plate 8 and the receiving tray 9, so that the pressing belt 11 forms an arc that matches the contour of the feeding tray 5 (i.e., the feeding area) at this place, applying an inward pressure to the material running to this place to make it fit with the bottom of the material groove 6 and prevent the material from sliding or skewing at this place, resulting in deviation of the cutting size.
[0031] Guide teeth 13 are provided on the side of the pressing belt 11 facing the guide roller 12, and the other side is a smooth surface. A limit groove 14 that cooperates with the guide teeth 13 is opened on the side wall of the guide roller 12. The size of the limit groove 14 is the same as that of the material groove 6. The advantage of this is that when the feeding tray 5 rotates, the friction with the pressing belt 11 will drive the pressing belt 11 to rotate. At this time, the size design of the limit groove 14 and the guide teeth 13 is the same as that of the material groove 6, which can ensure that the pressing belt 11 rotates synchronously with the feeding tray. The function is that while the material rotates with the feeding tray, the pressing belt 11 will not have a relative displacement with the material, thereby preventing the material from rotating on its own in the material groove 6 and affecting the yield of subsequent cutting operations.
[0032] As Figure 5As shown, the cutting assembly includes a driving disk 15 horizontally distributed with the feeding disk 5, and cutting blades 16 are installed on the two outer walls of the driving disk 15. A avoidance groove 17 corresponding to the position of the feeding disk 5 is formed between the two cutting blades 16. During operation, the right end of the feeding disk 5 in the horizontal direction has an overlapping area with the cutting assembly (i.e., the vertex position of the feeding area), and the feeding disk 5 in this area is located in the avoidance groove 17. When the material rotates to this area, the excess material at both ends is cut off by the cutting blades 16 on both sides, which can effectively improve the cutting efficiency, and through the continuous feeding of the loader 3 and the feeding assembly, the continuous excess material cutting operation is completed. The feeding assembly can also fix the position of the material while feeding the material, to ensure that the size after cutting meets the parameters set in advance, with high operating efficiency and strong continuity, and overall improved production capacity without affecting product quality.
[0033] A baffle 18 is provided on the side of the feed tray 5 facing away from the pushing device. The function of the baffle 18 is to fix the forward distance of the material. During operation, the material enters the trough 6 under the action of the pushing device, and the baffle 18 limits the end of the material on the other side to ensure that the size of the part of the material in the trough 6 does not change. The depth of the trough 6 is smaller than the diameter of the material, and the width (i.e., the thickness of the feed tray 5) is the same as the product setting value after cutting the allowance, and the opening width gradually increases from bottom to top.
[0034] The feeder 3 uses a vibrating feeder. The discharge end of the feeder 3 is provided with a conveying hose 22 connected to the discharge pipe 7. The conveying hose 22 is made of transparent PP material. Its function is to absorb the vibration force generated by the vibrating feeder to avoid affecting the feeding pipe 4. At the same time, the transparent material makes it easy to observe the material status and when blockage occurs.
[0035] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0036] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0037] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to these processes, articles, or apparatus / devices.
[0038] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.
Claims
1. A PCB drill bit cutting rod excess material cutting device, comprising a frame (1), characterized in that: The frame (1) is provided with a mounting plate (2), a feeding assembly and a cutting assembly are provided on the side wall of the mounting plate (2), a feeder (3) is provided on one side of the feeding assembly, and a feeding pipe (4) is provided between the feeder (3) and the feeding assembly; The feeding assembly comprises a feeding tray (5), a material trough (6) for use with a feeding pipe (4) is arranged on the side wall of the feeding tray (5), a discharge pipe (7) is arranged at one end of the feeding pipe (4) close to the feeding tray (5), and a pushing device for applying a forward thrust to the material is arranged on the side wall of the discharge pipe (7).
2. The PCB drill bit cutting edge bar excess material cutting device according to claim 1, characterized in that: A limiting plate (8) is arranged above the feed tray (5), and a receiving tray (9) is arranged below the feed tray (5). A feeding area (10) is formed on the feed tray (5) and is located between the limiting plate (8) and the receiving tray (9) and is used in conjunction with the cutting component. A material pressing device corresponding to the position of the feeding area (10) is arranged on one side of the feed tray (5).
3. The PCB drill bit cutting edge bar excess material cutting device according to claim 2, characterized in that: The material pressing device comprises a material pressing belt (11), and a guide roller (12) for installing the material pressing belt (11) is arranged on the mounting plate (2), and the number of the guide rollers (12) is at least two and they are respectively located outside the limiting plate (8) and the receiving tray (9).
4. The PCB drill bit cutting edge bar excess material cutting device according to claim 3, characterized in that: A guide tooth (13) is arranged on the side of the pressing belt (11) facing the guide roller (12), and a limiting groove (14) used in conjunction with the guide tooth (13) is arranged on the side wall of the guide roller (12).
5. The PCB drill bit cutting edge bar excess material cutting device according to claim 4, characterized in that: The limiting groove (14) and the material groove (6) have the same size.
6. The PCB drill bit cutting edge bar excess material cutting device according to claim 1, characterized in that: The cutting assembly comprises a driving disc (15) horizontally arranged with the feeding disc (5), and cutting discs (16) are arranged on two outer side walls of the driving disc (15), and a avoiding groove (17) corresponding to the position of the feeding disc (5) is formed between the two cutting discs (16).
7. The PCB drill bit cutting edge bar excess material cutting device according to claim 1, characterized in that: A baffle (18) is provided on the side of the feeding tray (5) facing away from the pushing device.
8. The PCB drill bit cutting edge bar excess material cutting device according to claim 1, characterized in that: The pushing device comprises a mounting bracket (19), an air blowing pipe (20) is arranged on the upper part of the mounting bracket (19), and a guide groove (21) corresponding to the position of the air blowing pipe (20) is arranged at the front end of the discharge pipe (7).
9. The PCB drill bit cutting edge bar excess material cutting device according to claim 8, characterized in that: The opening of the guide groove (21) faces the cutting assembly, and the length of the opening is half of the circumference of the cross section of the guide groove (21).
10. The PCB drill bit cutting edge bar excess material cutting device according to claim 1, characterized in that: The feeder (3) is a vibrating feeder, and a delivery hose (22) connected to a discharge pipe (7) is provided at the discharge end of the feeder (3).