Automatic grinding equipment for multi-specification saw blade teeth

Abstract

The utility model discloses a kind of multi-specification saw blade saw tooth automatic grinding equipment, including workbench, the horizontal positioning and the horizontal rotation of circular saw blade are equipped on the top surface of workbench, the ratchet pawl that the intermittent rotation of circular saw blade can be pushed is equipped in one adjacent side of circular saw blade, the grinding wheel for grinding the saw tooth of circular saw blade is equipped in another adjacent side of circular saw blade, the top surface and the bottom surface on the edge of circular saw blade are respectively equipped with the first roller and the second roller respectively abutting with the top surface and the bottom surface of circular saw blade, the upper movable seat and the lower movable seat respectively connected with the first roller and the second roller are respectively equipped above and below circular saw blade, the braking member that the first roller and the second roller can respectively abut and brake and separate is respectively equipped on the upper movable seat and the lower movable seat.This utility model has the characteristics that saw blade can be fixed when grinding saw tooth, avoid saw blade to occur deflection and damage saw tooth or grind not in place when grinding etc.

Description

Technical Field

[0001] This utility model relates to an automatic grinding device, specifically an automatic grinding device for saw blades and teeth of multiple specifications. Background Technology

[0002] Saw blades are used for cutting wood, metal, etc. in industrial production or daily life. Saw blades are usually made of metal. During use, the saw teeth of the saw blade will wear down and need to be polished for reuse.

[0003] Chinese patent application CN211889257U discloses a metal circular saw blade tooth grinding device, including a table, a first driving mechanism, a second driving mechanism, and a grinding mechanism. Symmetrically distributed support legs are fixedly connected to the lower surface of the table. A sliding groove is provided on the upper right side of the table. A first slider is slidably connected inside the sliding groove. A first spring is fixedly connected to the rear side of the first slider. The rear end of the first spring is fixedly connected to the rear side of the sliding groove. A second sliding groove is provided on the rear side of the table. A second slider is slidably connected inside the second sliding groove. A T-shaped screw is threadedly connected to the middle of the second slider. The front end of the T-shaped screw is rotatably connected to the interior of the table through a bearing. The rear end of the T-shaped screw is rotatably connected to the interior of the rear side of the table.

[0004] The aforementioned prior art, when grinding saw teeth, pushes the saw teeth to rotate to continuously grind the saw teeth of the saw blade. It can limit the saw blade to one side in one direction. However, in actual grinding, the saw blade may deflect due to the vibration during grinding, which can easily lead to errors in grinding the saw teeth, resulting in damage to the saw teeth or incomplete grinding. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic grinding equipment for saw blades of various specifications, which solves the problems of saw blades being easily damaged due to deflection or insufficient grinding in the existing technology.

[0006] The above-mentioned technical objective of this utility model is mainly achieved through the following technical solution: an automatic grinding device for multi-specification saw blade teeth, including a workbench, on the top surface of the workbench is a horizontally positioned and horizontally rotatable circular saw blade, a pawl that can push the circular saw blade to rotate intermittently is provided on one adjacent side of the circular saw blade, and a grinding wheel for grinding the saw blade teeth is provided on the other adjacent side of the circular saw blade, a first roller and a second roller that abut against the top and bottom surfaces of the circular saw blade respectively are provided on the top and bottom surfaces near the edge of the circular saw blade, an upper movable seat and a lower movable seat that are respectively connected to the first roller and the second roller above and below the circular saw blade, and a braking element that can abut against and separate from the first roller and the second roller respectively is provided on the upper movable seat and the lower movable seat.

[0007] As a further preferred technical solution of this utility model; a first central shaft and a second central shaft are respectively provided at the axis of the first roller and the second roller, the upper movable seat is located above the first roller, the lower movable seat is located below the second roller, and the upper movable seat and the lower movable seat are respectively provided with a first fixed frame and a second fixed frame that are respectively connected to the two ends of the first central shaft and the two ends of the second central shaft.

[0008] As a further preferred technical solution of this utility model; the first fixing frame includes a first mating part that is movably connected to the bottom of the upper movable seat, the second fixing frame includes a second mating part that is movably connected to the bottom of the lower movable seat, the first mating part is provided with a first connecting post connected to the upper movable seat in the middle, and a braking element is provided at the bottom end of the first connecting post, the second mating part is provided with a second connecting post connected to the lower movable seat in the middle, and a braking element is provided at the bottom end of the second connecting post.

[0009] As a further preferred technical solution of this utility model; the bottom of the upper movable seat is provided with a first mating groove, the first mating part slides with the first mating groove and can move up and down relative to the first mating groove, the side wall of the first mating part is provided with a limiting slider, the inner wall of the first mating groove is provided with a first strip-shaped groove that cooperates with the limiting slider and is vertically arranged, the top of the lower movable seat is provided with a second mating groove, the side wall of the second mating part and the second mating groove is provided with a limiting slider, and the inner wall of the second mating groove is provided with a second strip-shaped groove that cooperates with the limiting slider and is vertically arranged.

[0010] As a further preferred technical solution of this utility model, a plurality of first telescopic springs located on the periphery of the first connecting post are provided between the top of the first mating groove and the top of the first mating part, and a plurality of second telescopic springs located on the periphery of the second connecting post are provided between the top of the second mating groove and the top of the second mating part.

[0011] As a further preferred technical solution of this utility model; the bottom of the upper movable seat is provided with an upper fixed block corresponding to the outer side of the circular saw blade, the upper fixed block is provided with an electromagnet inside, the bottom of the upper fixed block is provided with a first pad, the top of the lower movable seat is provided with a lower fixed block corresponding to the lower fixed block below, the lower fixed block is provided with a permanent magnet inside, and the top of the lower fixed block is provided with a second pad.

[0012] As a further preferred technical solution of this utility model; the top of the workbench is provided with a fixed seat, the side wall of the fixed seat is provided with a vertically arranged T-shaped slide groove, the upper movable seat side wall and the lower movable seat side wall are respectively provided with an upper slide block and a lower slide block that slide with the T-shaped slide groove, a third telescopic spring is provided between the upper slide block and the lower slide block, the bottom of the upper slide block is provided with an upper limit rod located in the middle of the third telescopic spring, and the top of the lower slide block is provided with a lower limit rod located in the middle of the third telescopic spring.

[0013] Therefore, this utility model has the advantages of fixing the saw blade during grinding, thus preventing the saw blade from deflecting and damaging the saw teeth or failing to grind properly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A structural diagram from another perspective; Figure 3 yes Figure 1 Partial structural sectional view; Figure 4 yes Figure 3 Enlarged view of the structure at point A in the diagram. Detailed Implementation

[0015] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0016] like Figure 1-2As shown, an automatic saw blade tooth grinding device with multiple specifications includes a worktable 1. A horizontally positioned and rotatable circular saw blade 2 is mounted on the top surface of the worktable 1. The circular saw blade 2 is horizontally positioned above the worktable 1 and can rotate horizontally via a coaxial connection with the spindle. A pawl 31 is provided on one adjacent side of the circular saw blade 2, capable of intermittently pushing the circular saw blade 2 to rotate. The pawl 31 can intermittently enter and exit the tooth grooves on the side wall of the circular saw blade 2 to achieve continuous pushing of the circular saw blade 2. The intermittent entry and exit of the pawl 31... The moving structure is existing technology and will not be described in detail here. On the other side of the circular saw blade 2, there is a grinding wheel 32 for grinding the saw teeth. The grinding wheel 32 can be driven by a motor to rotate at high speed to enter the saw tooth grooves of the circular saw blade 2 to grind the saw teeth. On the top and bottom surfaces near the edge of the circular saw blade 2, there are first rollers 41 and second rollers 42 respectively, which abut against the top and bottom surfaces of the circular saw blade 2. The first rollers 41 and second rollers 42 are located on the top and bottom surfaces of the circular saw blade 2, forming a double-sided clamping mechanism for the circular saw blade 2. The circular saw blade 2 is held in place and maintains contact with its end face through its own rolling motion when the blade rotates intermittently. An upper movable seat 43 and a lower movable seat 44 are respectively provided above and below the circular saw blade 2, connected to the first roller 41 and the second roller 42. The upper movable seat 43 and the lower movable seat 44 respectively position the first roller 41 and the second roller 42. Braking elements 40 are respectively provided on the upper movable seat 43 and the lower movable seat 44, which can abut against and separate from the first roller 41 and the second roller 42 for braking. Part 40 is a product already available on the market. It is a brake pad that cooperates with the first roller 41 and the second roller 42. When grinding the circular saw blade 2, the brake pad 40 can brake the first roller 41 and the second roller 42 to prevent them from rotating. This allows the first roller 41 and the second roller 42 to clamp the circular saw blade 2, preventing the circular saw blade 2 from deflecting under force during grinding and affecting the smooth grinding of the saw teeth. It also prevents damage to the saw teeth and ensures that the saw teeth of the circular saw blade 2 are ground properly.

[0017] like Figure 2 and 3As shown, a first central shaft 411 and a second central shaft 421 are respectively provided at the axis of the first roller 41 and the second roller 42. The first central shaft 411 and the second central shaft 421 support the rotation of the first roller 41 and the second roller 42 respectively. The upper movable seat 43 is located above the first roller 41, and the lower movable seat 44 is located below the second roller 42. The upper movable seat 43 and the lower movable seat 44 are respectively provided with a first fixed frame 431 and a second fixed frame 441 connected to the two ends of the first central shaft 411 and the two ends of the second central shaft 421 respectively. The first fixed frame 431 and the second fixed frame 441 are respectively connected to and positioned by the first roller 41 and the second roller 42, supporting the rotation of the first roller 41 and the second roller 42. The first fixed frame 431 includes a first mating part 432 that is movably connected to the bottom of the upper movable seat 43, and the second fixed frame 441 includes a second mating part 442 that is movably connected to the bottom of the lower movable seat 44. The middle part of the first mating part 432 is provided with a connection to the upper movable seat 43. The first connecting post 433 is connected to the upper movable seat 43 and the lower movable seat 44. The upper ends of the first connecting post 433 and the second connecting post 443 are respectively connected to the first mating groove 432 and the second mating groove 442. The first connecting post 433 and the second connecting post 443 are respectively inserted through the middle of the first mating part 432 and the second mating part 442. The lower end of the second connecting post 443 is provided with the brake 40. The first connecting post 433 and the second connecting post 443 can move with the upper movable seat 43 and the lower movable seat 44 respectively, so as to drive the brake 40 to abut and separate from the first roller 41 and the second roller 42 respectively. When the circular saw blade 2 rotates, the brake 40 separates from the first roller 41 and the second roller 42. When the circular saw blade 2 grinds, the brake 40 abuts with the first roller 41 and the second roller 42 to form braking.

[0018] like Figure 3-4As shown, the bottom of the upper movable seat 43 is provided with a first mating groove 434. The first mating part 432 slides with the first mating groove 434 and can move up and down relative to the first mating groove 434. The first mating part 432 can drive the first roller 41 to move up and down relative to the upper movable seat 43. The inner wall of the first mating groove 434 slides with the outer wall of the first mating part 432. A first limiting slider 435 is provided on the side wall of the first mating part 432. A first strip groove 436 is provided on the inner wall of the first mating groove 434, which mates with the first limiting slider 435 and is vertically arranged. The first mating part 432 passes through... The first limiting slider 435 and the first strip groove 436 are engaged, allowing the slider to move along the first strip groove 436 within the first mating groove 434, and confining the first mating part 432 within the first mating groove 434. The top of the lower movable seat 44 is provided with a second mating groove 444. The second mating part 442 can drive the second roller 42 to move up and down relative to the lower movable seat 44. The inner wall of the second mating groove 444 slides against the outer wall of the second mating part 442. A second limiting slider 445 is provided on the side wall of the second mating part 442 and the second mating groove 444. The inner wall of the second mating groove 444 is provided with... The second limiting slider 445 cooperates with the vertically arranged second strip groove 446. The second mating part 432 can move along the second strip groove 446 within the second mating groove 444 through the cooperation of the second limiting slider 445 and the second strip groove 446, and the second mating part 442 is confined within the second mating groove 444. A plurality of first telescopic springs 437 located around the first connecting post 433 are provided between the top of the first mating groove 434 and the top of the first mating part 432. The first telescopic springs 437 exert force on the first fixing frame 431, causing the first roller 41 to... It can maintain contact with the circular saw blade 2, and at the same time, the contraction of the first telescopic spring 437 allows the upper movable seat 43 to move smoothly relative to the first fixed frame 431. A plurality of second telescopic springs 447 are provided between the top of the second mating groove 444 and the top of the second mating part 442, located around the second connecting post 443. The second telescopic springs 447 exert force on the second fixed frame 441, so that the second roller 42 can maintain contact with the circular saw blade 2, and at the same time, the contraction of the second telescopic springs 447 allows the lower movable seat 44 to move smoothly relative to the second fixed frame 441.

[0019] like Figure 3As shown, the bottom of the upper movable seat 43 is provided with an upper fixed block 45 corresponding to the outer side of the circular saw blade 2. An electromagnet 451 is installed inside the upper fixed block 45. The electromagnet 451 is existing technology and is connected to the external control system signal. It magnetically engages with the permanent magnet 461. A first pad 452 is provided at the bottom of the upper fixed block 45. The first pad 452 is made of rubber. The top of the lower movable seat 44 is provided with a lower fixed block 46 corresponding to the area below the upper fixed block 45. A permanent magnet 461 is installed inside the lower fixed block 46. The permanent magnet 461 can magnetically attract the electromagnet 451. A second pad 462 is provided at the top of the lower fixed block 46. The second pad 462 is made of rubber. The first pad 452 and the second pad 462... The two pads 462 act as a buffer when the electromagnet 451 and the permanent magnet 461 are attracted, reducing the impact force when the upper fixed block 45 and the lower fixed block 46 approach each other. The top of the workbench 1 is provided with a fixed seat 5, and the side wall of the fixed seat 5 is provided with a vertically arranged T-shaped slide groove 51. The upper movable seat 43 and the lower movable seat 44 are respectively provided with an upper slider 438 and a lower slider 448 that slide with the T-shaped slide groove 51. The upper slider 438 and the lower slider 448 cooperate with the T-shaped slide groove 51 and support the upper movable seat 43 and the lower movable seat 44 to move up and down relative to each other, maintaining the stability of the upper movable seat 43 and the lower movable seat 44 when moving. There is a space between the upper slider 438 and the lower slider 448. A third telescopic spring 52 is provided. When the electromagnet 451 and the permanent magnet 461 are attracted, the upper fixing block 45 and the lower fixing block 46 approach each other, and the third telescopic spring 52 contracts. At the same time, the first connecting post 433 and the second connecting post 443 move down synchronously, causing the brake 40 to abut against the first roller 41 and the second roller 42, forming a braking effect on the first roller 41 and the second roller 42. This fixes the circular saw blade 2 during grinding, maintaining its stability. When grinding ends, the pawl 31 pushes the circular saw blade 2 to rotate, and the electromagnet 451 releases its attraction to the permanent magnet 461. At this time, the third telescopic spring 52 extends, and its two ends push the upper slider 438 and the lower slider 448 to... The upper fixed block 45 and the lower fixed block 46 are separated, thereby separating the brake element 40 from the first roller 41 and the second roller 42, canceling the braking effect, so that the first fixed roller 41 and the second roller 42 can roll with the circular saw blade 2 and maintain the stability of the circular saw blade 2. The bottom of the upper slider 438 is provided with an upper limit rod 439 located in the middle of the third telescopic spring 52, and the top of the lower slider 448 is provided with a lower limit rod 449 located in the middle of the third telescopic spring 52. The upper limit rod 439 and the lower limit rod 449 play a limiting and guiding role when the third telescopic spring 52 extends and retracts, so as to prevent the third telescopic spring 52 from twisting and bending when extending and retracting, which would affect the normal elastic force.

[0020] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An automatic saw blade tooth grinding device with multiple specifications, comprising a workbench (1), wherein a horizontally positioned and horizontally rotatable circular saw blade (2) is provided on the top surface of the workbench (1), a pawl (31) is provided on one adjacent side of the circular saw blade (2) to push the circular saw blade (2) to rotate intermittently, and a grinding wheel (32) for grinding the saw teeth of the circular saw blade (2) is provided on the other adjacent side of the circular saw blade (2), characterized in that: The circular saw blade (2) is provided with a first roller (41) and a second roller (42) on the top and bottom surfaces near the edge, respectively, which abut against the top and bottom surfaces of the circular saw blade (2). The circular saw blade (2) is provided with an upper movable seat (43) and a lower movable seat (44) above and below, respectively, which are connected to the first roller (41) and the second roller (42). The upper movable seat (43) and the lower movable seat (44) are provided with brake components (40) that can abut against the first roller (41) and the second roller (42) respectively for braking and separation.

2. The automatic grinding equipment for multi-specification saw blade teeth according to claim 1, characterized in that: The first roller (41) and the second roller (42) are respectively provided with a first central shaft (411) and a second central shaft (421) at their axial centers. The upper movable seat (43) is located above the first roller (41), and the lower movable seat (44) is located below the second roller (42). The upper movable seat (43) and the lower movable seat (44) are respectively provided with a first fixed frame (431) and a second fixed frame (441) that are respectively connected to the two ends of the first central shaft (411) and the two ends of the second central shaft (421).

3. The automatic grinding equipment for multi-specification saw blade teeth according to claim 2, characterized in that: The first fixed frame (431) includes a first mating part (432) movably connected to the bottom of the upper movable seat (43), and the second fixed frame (441) includes a second mating part (442) movably connected to the bottom of the lower movable seat (44). The first mating part (432) is provided with a first connecting post (433) connected to the upper movable seat (43) in the middle, and a brake (40) is provided at the bottom end of the first connecting post (433). The second mating part (442) is provided with a second connecting post (443) connected to the lower movable seat (44) in the middle, and a brake (40) is provided at the bottom end of the second connecting post (443).

4. The automatic grinding equipment for multi-specification saw blade teeth according to claim 3, characterized in that: The upper movable seat (43) is provided with a first mating groove (434) at its bottom. The first mating part (432) slides with the first mating groove (434) and can move up and down relative to the first mating groove (434). The side wall of the first mating part (432) is provided with a first limiting slider (435). The inner wall of the first mating groove (434) is provided with a first strip groove (436) that mates with the first limiting slider (435) and is vertically arranged. The lower movable seat (44) is provided with a second mating groove (444) at its top. The side walls of the second mating part (442) and the second mating groove (444) are provided with a second limiting slider (445). The inner wall of the second mating groove (444) is provided with a second strip groove (446) that mates with the second limiting slider (445) and is vertically arranged.

5. The automatic grinding equipment for multi-specification saw blade teeth according to claim 4, characterized in that: A plurality of first telescopic springs (437) located on the periphery of the first connecting post (433) are provided between the top of the first mating groove (434) and the top of the first mating part (432), and a plurality of second telescopic springs (447) located on the periphery of the second connecting post (443) are provided between the top of the second mating groove (444) and the top of the second mating part (442).

6. The automatic grinding equipment for multi-specification saw blade teeth according to claim 1, characterized in that: The bottom of the upper movable seat (43) is provided with an upper fixed block (45) corresponding to the outer side of the circular saw blade (2). An electromagnet (451) is provided inside the upper fixed block (45). A first pad (452) is provided at the bottom of the upper fixed block (45). The top of the lower movable seat (44) is provided with a lower fixed block (46) corresponding to the lower fixed block (45). A permanent magnet (461) is provided inside the lower fixed block (46). A second pad (462) is provided at the top of the lower fixed block (46).

7. The automatic grinding equipment for multi-specification saw blade teeth according to claim 1, characterized in that: The workbench (1) is provided with a fixed seat (5) at the top. The fixed seat (5) is provided with a vertically arranged T-shaped slide groove (51) on the side wall. The upper movable seat (43) and the lower movable seat (44) are respectively provided with an upper slide block (438) and a lower slide block (448) that slide with the T-shaped slide groove (51). A third telescopic spring (52) is provided between the upper slide block (438) and the lower slide block (448). The upper slide block (438) is provided with an upper limit rod (439) located in the middle of the third telescopic spring (52) at the bottom. The lower slide block (448) is provided with a lower limit rod (449) located in the middle of the third telescopic spring (52) at the top.

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