Rough grinding device for band saw blade

Abstract

The utility model relates to saw blade polishing equipment technical field, especially a kind of band saw blade rough grinding device, including rack, driving mechanism, support, mounting plate B and transmission assembly, two support plates are set apart on rack, and several guide wheels are set on support plate;Driving mechanism drives the support plate on both sides to be synchronized close or far away;Support is set on rack, sliding bracket B is set on support, and lifting driving assembly that drive sliding bracket B lifts is set on support, mounting plate A is set on sliding bracket B, tensioning assembly is set on mounting plate A, the movable end of tensioning assembly is connected with ratchet B, pushing assembly that drives mounting plate A to slide is set on sliding bracket B;Mounting plate B is slidably arranged on sliding bracket B, and polishing assembly is set on mounting plate B;Transmission assembly is transmissionally connected with mounting plate A and mounting plate B.The utility model can be quickly clamped, push and polish to different specifications of saw blade, and it is high in stability, and simple and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the technical field of saw blade grinding equipment, and in particular to a rough grinding device for band saw blades. Background Technology

[0002] When cutting brittle materials such as marble, band saw blades (with the ends connected to form a ring) are usually used. Since the materials being processed are very hard, the saw blades wear out quickly, so the saw needs to be ground in time. Grinding is divided into coarse grinding and fine grinding. Taking coarse grinding as an example, coarse grinding mainly removes burrs from the surface and edges of the saw blade to provide a smooth machine surface for subsequent fine grinding.

[0003] Existing band saw blade roughing devices are cumbersome to adjust for saw blades of different sizes, and often require multiple drive mechanisms or complex transmission mechanisms to push and grind the band saw blade. This results in either high energy consumption or troublesome subsequent maintenance. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a band saw blade rough grinding device.

[0005] The technical solution of this utility model is: a band saw blade rough grinding device, including a frame, two support plates that are slidably connected to the frame are spaced apart on the frame, a number of mounting brackets are spaced apart on the support plates, and guide wheels that rotate in a single direction are provided on the mounting brackets. The drive mechanism is mounted on the frame and drives the support plates on both sides to move closer or further away synchronously. A bracket is mounted on a frame. A slide B is slidably mounted on the bracket, and a lifting drive assembly is mounted on the bracket to drive the slide B to slide along the height direction of the bracket. A mounting plate A is slidably mounted on the slide B, and a tensioning assembly is mounted on the mounting plate A. The movable end of the tensioning assembly is connected to a ratchet B, and a pushing assembly is mounted on the slide B to drive the mounting plate A to slide along the horizontal direction of the slide B. Mounting plate B is mounted on carriage B and slidably connected to it along its height direction; a grinding component is mounted on mounting plate B. And a transmission assembly, which is mounted on the carriage B and drives the mounting plate A and the mounting plate B, so that the movement of the mounting plate A drives the mounting plate B to rise or fall.

[0006] Preferably, the frame is provided with through holes, and a number of support rods flush with the upper end surface of the frame are arranged at intervals in the through holes, and a negative pressure collection mechanism with its input end communicating with the through holes is provided at the bottom of the frame.

[0007] Preferably, two sliding covers are provided at intervals on the frame and slidably connected thereto. The two support plates are respectively connected to the sliding covers on the corresponding sides, so that the parts of the through holes on both sides of the support plates are always closed by the sliding covers when the support plates are close to or far apart.

[0008] Preferably, the drive mechanism includes a slide A and a drive assembly. The slide A includes two slides, which are respectively connected to the corresponding sliding covers. The drive assembly is mounted on the frame and drives the slides A on both sides to move closer or further away synchronously. A guide rod is provided in the through hole, and the guide rod passes through the slides A on both sides and is slidably connected to them.

[0009] Preferably, the mounting bracket is provided with a circular groove and a side groove communicating with the circular groove, a ratchet is coaxially provided on the central shaft of the guide wheel, a spring rod A is provided in the side groove, the movable end of the spring rod A is connected to the ratchet A, the ratchet A is slidably connected to the inner wall of the side groove and engages with the ratchet in one direction.

[0010] Preferably, the transmission assembly includes rack A, gear and rack B. Rack A is disposed on the side of mounting plate A facing mounting plate B. Gear is rotatably disposed on slide B and meshes with rack A. Rack B is disposed on the side of mounting plate B close to mounting plate A and meshes with gear. Rack A and rack B are offset.

[0011] Preferably, a limiting groove is provided on the carriage B, and rack A, gear and rack B are all located in the limiting groove, so as to restrict rack A and rack B from disengaging from gear through the limiting groove.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects: By setting an adjustable-pitch guide wheel structure, and the guide wheels being restricted to rotate in the opposite direction by a ratchet assembly, the push mechanism is prevented from causing the saw blade to slide back during the return process, thereby improving the positioning accuracy of each saw tooth. By setting an adjustable-height carriage B, this grinding device can be used for rough grinding of saw blades of different sizes (including thickness, height, saw tooth spacing, etc.). By setting a horizontally sliding mounting plate A, a vertically sliding mounting plate B, and a transmission assembly, and setting an elastically telescopic ratchet B on mounting plate A, and a grinding mechanism on mounting plate B, the mounting plate A moves horizontally, and the ratchet B pushes the saw teeth to move, thereby driving the saw blade to be conveyed. The grinding mechanism remains in a high position when the saw blade is sliding, and in a low position when the ratchet B is sliding back, and performs rapid grinding on the side of the saw teeth. At the same time, the grinding work on both sides of the saw blade is carried out simultaneously, improving grinding efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the connection structure between the guide wheel and the mounting bracket; Figure 3This is a schematic diagram of the connection structure between the drive mechanism and the frame; Figure 4 This is a schematic diagram of the connection structure between the drive assembly and carriage A; Figure 5 This is a schematic diagram of the connection structure of the various components on the support frame.

[0014] Reference numerals: 1. Frame; 101. Through hole; 2. Sliding cover; 3. Support plate; 4. Mounting bracket; 5. Guide wheel; 6. Ratchet; 7. Spring rod A; 8. Ratchet A; 9. Slide A; 10. Protective cover; 11. Two-way lead screw; 12. Motor A; 13. Negative pressure collection mechanism; 14. Bracket; 15. Slide B; 16. Lifting drive assembly; 17. Mounting plate A; 18. Spring rod B; 19. Slider; 20. Ratchet B; 21. Rack A; 22. Gear; 23. Pushing assembly; 24. Mounting plate B; 25. Rack B; 26. Grinding assembly. Detailed Implementation

[0015] Example 1, as Figures 1-5As shown, the present invention proposes a band saw blade rough grinding device, including a frame 1, a drive mechanism, a bracket 14, a mounting plate B24, and a transmission assembly. Two support plates 3 are slidably connected to the frame 1 at intervals. Several mounting brackets 4 are spaced apart on the support plates 3. Guide wheels 5 are rotatably mounted on the mounting brackets 4. The mounting brackets 4 have circular grooves and side grooves communicating with the circular grooves. A ratchet 6 is coaxially mounted on the central shaft of the guide wheels 5. A spring rod A7 is installed in the side groove, and the movable end of the spring rod A7 is connected to a ratchet tooth A8. The ratchet tooth A8 is slidably connected to the inner wall of the side groove and engages unidirectionally with the ratchet 6. A through hole 101 is provided on the frame 1, and several support rods flush with the upper end face of the frame 1 are spaced apart within the through hole 101. Two sliding covers 2 are slidably connected to the frame 1 at intervals. The two support plates 3 are respectively connected to the corresponding sliding covers 2, so that the sliding covers 2 always close the portions of the through hole 101 on both sides of the support plate 3 when the support plates 3 are close to or far apart. The drive mechanism includes a carriage A9 and a drive assembly. Two carriages A9 are connected to corresponding sliding covers 2. The drive assembly includes, but is not limited to, a bidirectional lead screw 11 and a motor A12. The bidirectional lead screw 11 is located inside the through hole 101 and rotatably connected to the frame 1. Both ends of the bidirectional lead screw 11 are threadedly connected to the corresponding carriages A9. The motor A12 is mounted on the frame 1, and its output end is connected to the bidirectional lead screw 11 via a coupling. A guide rod is installed inside the through hole 101, passing through and slidably connecting to the carriages A9 on both sides. A protective cover 10, parallel to the guide rod, is installed inside the through hole 101. The top of the protective cover 10 is curved and lower than the upper surface of the frame 1. The protective cover 10 passes through and slidably connects to the carriages A9 on both sides, and the bidirectional lead screw 11 is located inside the protective cover 10. In operation, the drive mechanism drives the support plates 3 on both sides to move synchronously closer or further away. The bracket 14 is mounted on the frame 1. A slide B15 is slidably mounted on the bracket 14. A lifting drive assembly 16 is mounted on the bracket 14 to drive the slide B15 to slide along the height direction of the bracket 14. The lifting drive assembly 16 includes, but is not limited to, a lead screw and a servo motor. The lead screw is rotatably connected to the bracket 14. The lead screw passes through the slide B15 and is threadedly connected to it. Several guide rails are mounted on the bracket 14. The slide B15 is slidably connected to the guide rails. Furthermore, a mounting plate A17 is slidably mounted on the slide B15, and a tensioning assembly is mounted on the mounting plate A17. The tensioning assembly includes, but is not limited to, a spring rod B18. The fixed end of the spring rod B18 is connected to the mounting plate A17, and the movable end of the spring rod B18 is connected to a slider 19. The end of the slider 19 away from the spring rod B18 is connected to a ratchet B20. A push assembly 23 is mounted on the slide B15 to drive the mounting plate A17 to slide in the horizontal direction of the slide B15. The push assembly 23 includes, but is not limited to, a servo electric cylinder. The body of the servo electric cylinder is mounted on the slide B15, and the output end of the servo electric cylinder is connected to the mounting plate A17.Mounting plate B24 is mounted on carriage B15 and slidably connected to it along its height. Grinding assembly 26 is mounted on mounting plate B24. The grinding assembly includes a grinding wheel and a motor. A wheel disk is mounted on mounting plate B24, and the grinding wheel is connected to the wheel disk by bolts. A V-groove coaxial with the grinding wheel is provided on the arc surface of the grinding wheel, and the concave side of the V-groove is equidistant from the guide wheels 5 on both sides. The motor B is mounted on mounting plate B24, and the output end of motor B is connected to the wheel disk via a coupling. The transmission assembly is mounted on the slide B15 and includes a rack A21, a gear 22, and a rack B25. Rack A21 is located on the side of the mounting plate A17 facing the mounting plate B24. Gear 22 is rotatably mounted on the slide B15 and meshes with rack A21. Rack B25 is located on the side of the mounting plate B24 near the mounting plate A17 and meshes with gear 22. Rack A21 and rack B25 are offset. A limiting groove is provided on the slide B15, and rack A21, gear 22, and rack B25 are all located in the limiting groove to prevent rack A21 and rack B25 from disengaging from gear 22. The transmission assembly drives the mounting plate A17 and the mounting plate B24 so that the movement of the mounting plate A17 drives the mounting plate B24 to rise or fall.

[0016] In this embodiment, one section of the band saw blade is secured between the two guide wheels 5. The motor 12 is started, and the motor A12 drives the bidirectional lead screw 11 to rotate, thereby causing the guide wheels 5 on both sides to move closer and secure the saw blade. Then, the servo motor is started, and the servo motor drives the lead screw to rotate, thereby causing the slide B15 to descend to the mounting plate A17 and contact the top of the saw teeth of the saw blade. The position of the saw blade is adjusted, and the servo electric cylinder is started to push the saw teeth horizontally, thereby causing the saw teeth to move horizontally by one tooth position. During this process, the rack A21 drives the gear 22 to rotate, and then the gear 22 drives the rack B25 to slide upward, thereby causing the grinding assembly 26 to rise and disengage from the saw teeth. Then, the servo electric cylinder drives the ratchet B20 to slide back one tooth position. At this time, the grinding assembly 26 descends, and the motor B drives the grinding wheel to rotate at high speed, using the grinding wheel to perform coarse grinding on the current saw teeth.

[0017] Example 2, as Figure 1 and Figure 3 As shown, the band saw blade rough grinding device proposed in this utility model, compared with Embodiment 1, has a negative pressure collection mechanism 13 at the bottom of the frame 1, with the input end connected to the through hole 101. The negative pressure collection mechanism 13 includes a collection hopper, a guide pipe, a receiving hopper, a filter screen, and a blower. The collection hopper is disposed outside the through hole 101 and connected to the frame 1. The guide pipe is connected to the output end of the collection hopper. One end of the receiving hopper is inserted into the guide pipe and slidably connected to it. The bottom of the receiving hopper is provided with a vent hole. The filter screen is disposed in the vent hole. The blower is disposed in the guide pipe. The input end of the blower is connected to the output end of the guide pipe, and the output end of the blower is connected to the outside.

[0018] In this embodiment, a large amount of metal shavings are generated during the grinding process. When the fan is started, the shavings follow the airflow into the through hole 101 and then into the collection hopper. Subsequently, the shavings fall onto the filter screen in the receiving hopper, and the air is discharged. Afterward, only the impurities in the receiving hopper need to be cleaned. This structure provides a good operating environment for the workers.

[0019] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A band saw blade rough grinding device, characterized in that, include: A frame (1) is provided with two support plates (3) that are slidably connected to it at intervals. Several mounting brackets (4) are provided at intervals on the support plates (3). Guide wheels (5) that rotate in a single direction are provided on the mounting brackets (4). The drive mechanism is mounted on the frame (1) and drives the support plates (3) on both sides to move closer or further away synchronously. A bracket (14) is mounted on a frame (1). A slide B (15) is slidably mounted on the bracket (14). A lifting drive assembly (16) is mounted on the bracket (14) to drive the slide B (15) to slide along the height direction of the bracket (14). A mounting plate A (17) is slidably mounted on the slide B (15). A tensioning assembly is mounted on the mounting plate A (17). The movable end of the tensioning assembly is connected to a ratchet B (20). A push assembly (23) is mounted on the slide B (15) to drive the mounting plate A (17) to slide along the horizontal direction of the slide B (15). Mounting plate B (24) is mounted on slide B (15) and slidably connected to it along its height direction. Grinding assembly (26) is mounted on mounting plate B (24). And a transmission assembly, which is mounted on the carriage B (15) and drives the mounting plate A (17) and mounting plate B (24) to rise or fall by moving the mounting plate A (17).

2. The band saw blade rough grinding device according to claim 1, characterized in that, A through hole (101) is provided on the frame (1). Several support rods that are flush with the upper end face of the frame (1) are provided in the through hole (101) at intervals. A negative pressure collection mechanism (13) with the input end connected to the through hole (101) is provided at the bottom of the frame (1).

3. The band saw blade rough grinding device according to claim 2, characterized in that, Two sliding covers (2) are provided at intervals on the frame (1) and are slidably connected to it. Two support plates (3) are respectively connected to the corresponding sliding covers (2) so that the through holes (101) on both sides of the support plates (3) are always closed by the sliding covers (2) when the support plates (3) are close to each other or far apart.

4. The band saw blade rough grinding device according to claim 3, characterized in that, The drive mechanism includes a slide A (9) and a drive assembly. The slide A (9) includes two slides and is connected to the corresponding slide cover (2) respectively. The drive assembly is set on the frame (1) and drives the slides A (9) on both sides to move closer or further away synchronously. A guide rod is provided in the through hole (101). The guide rod passes through the slides A (9) on both sides and is slidably connected to them.

5. The band saw blade rough grinding device according to claim 1, characterized in that, The mounting bracket (4) is provided with a circular groove and a side groove connected to the circular groove. A ratchet (6) is coaxially provided on the central shaft of the guide wheel (5). A spring rod A (7) is provided in the side groove. The movable end of the spring rod A (7) is connected to the ratchet A (8). The ratchet A (8) is slidably connected to the inner wall of the side groove and engages with the ratchet (6) in one direction.

6. The band saw blade rough grinding device according to claim 1, characterized in that, The transmission assembly includes rack A (21), gear (22) and rack B (25). Rack A (21) is located on the side of mounting plate A (17) facing mounting plate B (24). Gear (22) is rotatably mounted on slide B (15) and meshes with rack A (21). Rack B (25) is located on the side of mounting plate B (24) close to mounting plate A (17) and meshes with gear (22). Rack A (21) and rack B (25) are offset.

7. The band saw blade rough grinding device according to claim 6, characterized in that, A limiting groove is provided on the carriage B (15), and rack A (21), gear (22) and rack B (25) are all located in the limiting groove so as to restrict rack A (21) and rack B (25) from disengaging from gear (22) through the limiting groove.

Images