A steel bar feeding mechanism of a centerless grinder
By designing a steel bar feeding mechanism for a centerless grinder, the automatic feeding of steel wire is achieved using cylinders and pusher plates, solving the problem of workers waiting during the steel wire grinding process and improving work efficiency and time utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAIYAN MASCH CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-26
AI Technical Summary
During the processing of steel wires in a centerless grinder, workers need to wait for the steel wire to be ground before they can put in the next one, which wastes working time and makes it impossible to perform other tasks at the same time.
Design a steel bar feeding mechanism for a centerless grinder. The mechanism uses a cylinder and a pusher plate to automatically feed steel wire in a V-groove. Through the cooperation of the slide plate and the pusher plate, the continuous feeding and grinding of the steel wire is achieved, reducing manual intervention.
This technology enables continuous conveying and grinding of steel wires, allowing workers to perform other tasks while waiting, thus improving work efficiency and saving time.
Smart Images
Figure CN224407257U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fastener manufacturing and processing, and in particular to a steel bar feeding mechanism for a centerless grinder. Background Technology
[0002] Steel wire is a raw material used to manufacture screws. When processing steel wire, it is necessary to use a centerless grinder to remove oxides and other impurities from the surface of the steel wire. Then, threads are machined on the surface of the steel wire. During grinding, the worker puts the steel wire between two rows of conveyor rollers located at the inlet of the centerless grinder. The conveyor rollers at the inlet rotate and drive the steel wire into the centerless grinder. The centerless grinder grinds the steel wire. After grinding, the conveyor rollers at the inlet of the centerless grinder then transport the steel wire between two rows of conveyor rollers at the outlet of the centerless grinder. The conveyor rollers at the outlet drive the steel wire to move and transport the ground steel wire to a collection box.
[0003] Because it takes time to grind a steel wire, workers can only put the next one into the conveyor wheel after the previous one is ground. Moreover, many wires need to be ground, which gives workers a lot of free time. Workers cannot do other work while grinding steel wires, otherwise they cannot put the next steel wire into the conveyor wheel in time, thus wasting working time. Utility Model Content
[0004] The purpose of this invention is to provide a steel bar feeding mechanism for a centerless grinder to solve the above-mentioned problems.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] A steel bar feeding mechanism for a centerless grinder includes a base with conveyor wheels rotatably connected to it. Two rows of conveyor wheels are mounted on the base, with at least two wheels in each row. A transmission component is provided between adjacent conveyor wheels. A mounting plate is detachably connected to the upper part of the base, located at one end between the two rows of conveyor wheels. Two limiting plates are fixedly connected to the upper part of the mounting plate, forming a channel with a height and width equal to the diameter of the steel bar being ground. Support plates are fixedly connected to the two opposite sides of the two limiting plates, and ramps are fixedly connected to the two support plates, with the ramp surfaces facing each other. A V-shaped groove is formed between the two ramps. There is a gap between the bottom surface of the ramp and the upper surface of the limiting plate. There is a second channel between the bottom surfaces of the two ramps. The first channel and the second channel are aligned, and the second channel is aligned with the two rows of conveyor wheels. The widths of the first channel and the second channel are the same. The mounting plate is provided with a moving device on the side of one ramp. A sliding plate is provided between the bottom surface of the ramp and the bottom surface of the limiting plate. The sliding plate is slidably connected to the limiting plate. The sliding plate has a third channel. The width of the third channel is the same as the widths of the first channel and the second channel. The moving device is connected to the sliding plate. A pushing device is provided at one end of the mounting plate of the limiting plate.
[0007] Using the above technical solution, several steel bars are placed in the V-shaped groove formed by two ramps. A sliding plate blocks channels one and two to prevent the steel bars from falling out of channel two. During operation, the moving device drives the sliding plate to align channel three with channels one and two. The bottom steel bar in the V-shaped groove falls from channel one into channel three of the sliding plate, and then from channel three back into channel one. Simultaneously, the bottom steel bar in channel two falls into channel three. The bottom steel bar in channel one abuts against the bottom steel bar in channel three to prevent it from falling into channel one, ensuring the bottom steel bar is positioned in channel three. The moving device drives a baffle to move, causing the steel bars in channel three to move away from above the steel bars in channel one. Simultaneously, the portion of baffle three without a channel blocks channels one and two. The pushing device pushes the steel bars in channel one between two rows of conveyor wheels. The conveyor wheels rotate, causing the steel bars to leave channel one and enter the centerless grinder for processing. During the grinding process, as the steel wire moves through channel one, the sliding plate blocks channels one and two, preventing the steel wire in the V-groove from falling out and pressing down on the steel wire being ground in channel one, thus affecting the conveying and grinding of the steel wire. Once the steel wire in channel one has completely left and been ground, the moving device drives the sliding plate to move, and the sliding plate moves the steel wire in channel three to above channel one and below channel two. The steel wire in channel three falls back into channel one, and the steel wire in the V-groove falls back into channel three. The output shaft of cylinder two drives the sliding plate to return, and channel three carries the steel wire inside it away from channel one. The sliding plate blocks channels one and two again, and then the pushing device pushes the steel wire in channel one into the conveying wheel for conveying and grinding. During the conveying and grinding of the steel wire in the V-groove, the worker has more time to do other work. Once the steel wire in the V-groove is ground, the worker only needs to put the steel wire back in, and then can continue other work, saving working time.
[0008] Preferably, the moving device is a cylinder, which is horizontally fixedly connected to the side of one of the support plates. The output shaft of the cylinder passes through the support plate and is located between the bottom surface of the slope and the upper surface of the limiting plate. The output shaft of the cylinder is fixedly connected to the sliding plate.
[0009] Using the above technical solution, the cylinder output shaft extends or retracts to drive the slide plate to move.
[0010] Preferably, the pushing device includes a second cylinder, which is located at one end of the limiting plate and aligned with the first channel. The second cylinder is fixedly connected to the mounting plate, and a push plate is fixedly connected to the output shaft of the second cylinder. The push plate slides with the mounting plate.
[0011] Using the above technical solution, the output shaft of cylinder two extends to drive the push plate into channel one, and the push plate pushes the steel bar in channel one to move, so that the steel bar enters between the two rows of conveyor wheels.
[0012] Preferably, the third channel is wider at the top and narrower at the bottom, with a V-shaped cross-section, and the bottom opening width of the third channel is the same as that of the first channel.
[0013] Using the above technical solution, the moving device drives the slide plate to move, and the lower opening of the slide plate's channel three is aligned with channel one, increasing the width of the upper opening of channel three, which allows the steel wire in channel two to fall into channel two better.
[0014] Preferably, a baffle is placed in the V-groove, with its two sides contacting two ramps respectively, and the baffle is detachably connected to the ramps.
[0015] Using the above technical solution, the position of the baffle in the V-groove is adjusted according to the length of the steel wire to be ground, so that when the steel wire is placed in the V-groove and one end of the steel wire abuts against the baffle, the steel wire can be aligned with the part between the two ends of the channel three, so that the steel wire can fall into the channel three. Attached Figure Description
[0016] Figure 1 This is an overall schematic diagram of the embodiment;
[0017] Figure 2 This is a top view of an embodiment;
[0018] Figure 3 This is a side view of the feeding mechanism;
[0019] Figure 4 This is a front view of the feeding mechanism;
[0020] Figure 5 This is a rear view of the feeding mechanism;
[0021] Figure 6 This is a schematic diagram of the overall feeding mechanism;
[0022] Figure 7 This is a schematic diagram of the overall structure between the bottom surface of the slope and the upper surface of the limiting plate.
[0023] Attached reference numerals: 1. Base; 2. Conveyor wheel; 3. Mounting plate; 4. Limiting plate; 5. Channel 1; 6. Support plate; 7. Ramp; 8. Channel 2; 9. Slide plate; 10. Channel 3; 11. Cylinder 1; 12. Cylinder 2; 13. Push plate; 14. Baffle; 15. Centerless grinder; 16. Guide tube 1; 17. Guide tube 2. Detailed Implementation
[0024] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model should be considered within the protection scope of this utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
[0025] See Figure 1 , Figure 2 A steel bar feeding mechanism for a centerless grinder includes a base 1, on which conveyor wheels 2 are rotatably connected. There are two rows of conveyor wheels 2, with at least two in each row. Two conveyor wheels 2 in the same row are interconnected via pulleys; two conveyor wheels 2 in different columns of the same row are interconnected via gears. A motor is fixedly connected to the base 1, and the motor output shaft is connected to one of the conveyor wheels 2 via a pulley or gear. A guide tube 16 is bolted to the front of the conveyor wheels 2 on the base 1. A centerless grinder 15 is located in front of the guide tube 16 on the base 1. The opening of the guide tube 16 aligns with the two grinding wheels of the centerless grinder 15. The conveyor wheels 2 on the base 1 are located at the feed end of the centerless grinder 15. A conveyor wheel 2 is located in front of the discharge end of the centerless grinder 15. A second guide tube 17 is located in front of the conveyor wheels 2 on the centerless grinder 15.
[0026] See Figure 1 , Figure 4 and Figure 7 A mounting plate 3 is detachably connected to the upper part of the base 1. Multiple threaded holes are made in the base 1, and multiple bolts are threaded through the mounting plate 3. The bolts passing through the threaded holes in the base 1 are threaded onto the base 1, with the bolt tails pressing against the mounting plate 3, thus fixing the mounting plate 3 to the base 1. The mounting plate 3 is located behind the two rows of conveyor wheels 2 of the base 1. Two limiting plates 4 are fixedly connected to the upper part of the mounting plate 3, spaced apart to form a channel 5. The height and width of the channel 5 are the same as the diameter of the steel strip being ground. Support plates 6 are fixedly connected to the two far sides of the two limiting plates 4. A horizontal cylinder 11 is fixedly connected to the side of one of the support plates 6. The cylinder 11 is located on the outer side between the two support plates 6, and its output shaft passes through the support plate 6, located between the bottom surface of the ramp 7 and the upper surface of the limiting plate 4.
[0027] See Figures 4 to 7Two ramps 7 are fixedly connected to the two support plates 6 respectively. The inclined surfaces of the two ramps 7 are opposite each other, and a V-shaped groove is formed between the two ramps 7. There is a gap between the bottom surface of the ramp 7 and the upper surface of the limiting plate 4. There is a second channel 8 between the bottom surfaces of the two ramps 7. The first channel 5 is aligned with the second channel 8, and the second channel 8 is aligned with the two rows of conveyor wheels 2. The widths of the first channel 5 and the second channel 8 are the same.
[0028] See Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 A sliding plate 9 is provided between the bottom surface of the ramp 7 and the top surface of the limiting plate 4. The sliding plate 9 is slidably connected to the limiting plate 4. The sliding plate 9 has a channel 3 10, which is wider at the top and narrower at the bottom, with a V-shaped cross-section. The opening width at the bottom of the channel 3 10 is the same as the width of the channel 1 5. The output shaft of the cylinder 1 11 is fixedly connected to the sliding plate 9. A pushing device is provided at one end of the mounting plate 3 located at the limiting plate 4. A horizontal cylinder 2 12 is fixedly connected to the mounting plate 3 at one end of the limiting plate 4. The cylinder 2 12 is aligned with the channel 1 5. A push plate 13 is fixedly connected to the output shaft of the cylinder 2 12. The push plate 13 slides with the mounting plate 3.
[0029] Working principle: Several steel bars are placed in the V-shaped groove formed by two ramps 7. The sliding plate 9 blocks channels 1-5 and 2-8 to prevent the steel bars in the V-shaped groove from falling out of channel 2-8. During operation, the output shaft of cylinder 1-11 extends and pushes the sliding plate 9 to move, so that channel 3-10 of the sliding plate 9 is aligned with channels 1-5 and 2-8. The steel bar at the bottom of the V-shaped groove falls from channel 1-5 into channel 3-10 of the sliding plate 9, and then falls from channel 3-10 back into channel 1-5. At the same time, the steel bar at the bottom of channel 2-8 falls into channel 3-10. The bottom steel bar in channel 1-5 abuts against the bottom steel bar in channel 3-10 to prevent the bottom steel bar from falling into channel 1-5, so that the bottom steel bar is in the state of being in channel 3-10.
[0030] The output shaft of cylinder 11 retracts and moves to the baffle 14. The baffle 14 causes the steel wire in channel 3 10 to leave above the steel wire in channel 1 5. At the same time, the part of the baffle 14 10 without a channel blocks channel 1 5 and channel 2 8. The output shaft of cylinder 2 12 extends and drives the push plate 13 to move. The push plate 13 pushes the steel wire in channel 1 5 into the space between the two rows of conveyor wheels 2. The conveyor wheels 2 rotate, causing a part of the steel wire to leave channel 1 5 and enter the guide tube 16. The guide tube 16 guides the movement of the steel wire, keeping it moving in one direction, so that the steel wire can enter the centerless grinder 15. During the movement of the steel wire in channel 1 5, the sliding plate 9 blocks channel 1 5 and channel 2 8, preventing the steel wire in the V-groove from falling out and pressing on the steel wire being conveyed and ground in channel 1 5. The resistance on the steel wire increases, thus affecting the conveying and grinding of the steel wire.
[0031] The steel wire enters the centerless grinder 15 through the first conduit 16. While the centerless grinder 15 grinds the steel wire, the conveyor wheel 2 at the feed port of the centerless grinder drives the steel wire to move, so that the ground part of the steel wire enters the conveyor wheel 2 at the outlet of the centerless grinder 15. The conveyor wheel 2 at the outlet of the centerless grinder 15 then pulls the ground steel wire out of the centerless grinder 15, so that the steel wire falls into the collection mechanism after passing through the second conduit 17.
[0032] After the steel wire in channel 1 (5) has completely left and been ground, the output shaft of cylinder 11 extends and pushes the slide plate 9 to move. The slide plate 9 moves the steel wire in channel 3 (10) above channel 1 (5) and below channel 2 (8). The steel wire in channel 3 (10) falls into channel 1 (5), and the steel wire in the V-groove falls into channel 3 (10). The output shaft of cylinder 2 (12) drives the slide plate 9 back, and the steel wire inside channel 3 (10) leaves channel 1 (5). The slide plate 9 then blocks channel 1 (5) and channel 2 (8) again. Then, the output shaft of cylinder 2 (12) drives the push plate 13 to push the steel wire in channel 1 (5) into the conveyor wheel 2 for conveying and grinding. During the conveying and grinding of the steel wire in the V-groove, the worker has more time to do other work. After the steel wire in the V-groove is ground, the worker only needs to put the steel wire back in, without frequently putting the steel wire into the conveyor wheel 2. The time is more concentrated, and other work can be continued afterwards, saving working time.
Claims
1. A steel strip feeding mechanism of a centerless grinding machine, comprising a base (1) on which two rows of conveying wheels (2) are rotatably connected at the upper part, characterized in that, A mounting plate (3) is detachably connected to the upper part of the base (1). The mounting plate (3) is located at one end between two rows of conveyor wheels (2). Two limiting plates (4) are fixedly connected to the upper part of the mounting plate (3). The two limiting plates (4) are spaced apart to form a channel (5). The height and width of the channel (5) are the same as the diameter of the steel strip being ground. Support plates (6) are fixedly connected to the two opposite sides of the two limiting plates (4). Inclines (7) are fixedly connected to the two support plates (6). The inclined surfaces of the two inclined surfaces (7) are opposite to each other. A V-shaped groove is formed between the two inclined surfaces (7). There is a gap between the bottom surface of the inclined surface (7) and the upper surface of the limiting plate (4). The bottom surfaces of the two inclined surfaces (7) are... There is a second channel (8) between them. The first channel (5) is aligned with the second channel (8), and the second channel (8) is aligned with the two rows of conveyor wheels (2). The widths of the first channel (5) and the second channel (8) are the same. The mounting plate (3) is located on the side of a ramp (7) and a moving device is provided. A sliding plate (9) is provided between the bottom surface of the ramp (7) and the top surface of the limiting plate (4). The sliding plate (9) is slidably connected to the limiting plate (4). The sliding plate (9) has a third channel (10). The width of the third channel (10) is the same as the widths of the first channel (5) and the second channel (8). The moving device is connected to the sliding plate (9). The mounting plate (3) is located at one end of the limiting plate (4) and a pushing device is provided.
2. A steel bar feeding mechanism for a centerless grinding machine according to claim 1, wherein The moving device is a cylinder (11), which is horizontally fixedly connected to the side of one of the support plates (6). The output shaft of the cylinder (11) passes through the support plate (6) and is located between the bottom surface of the ramp (7) and the upper surface of the limiting plate (4). The output shaft of the cylinder (11) is fixedly connected to the slide plate (9).
3. A steel bar feeding mechanism for a centerless grinding machine according to claim 1, wherein The pushing device includes a second cylinder (12), which is located at one end of the limiting plate (4) and aligned with the first channel (5). The second cylinder (12) is fixedly connected to the mounting plate (3), and the output shaft of the second cylinder (12) is fixedly connected to a push plate (13). The push plate (13) slides with the mounting plate (3).
4. The steel bar feeding mechanism for a centerless grinder according to claim 1, characterized in that, The third channel (10) is wider at the top and narrower at the bottom, with a V-shaped cross-section. The bottom opening width of the third channel (10) is the same as that of the first channel (5).
5. The steel bar feeding mechanism for a centerless grinder according to claim 1, characterized in that, A baffle (14) is placed in the V-groove.