阅读说明：本技术 一种针对锯片的安全磨刃设备 (Safe sharpening equipment to saw bit ) 是由 郑立卫 于 2021-01-07 设计创作，主要内容包括：本发明公开了一种针对锯片的安全磨刃设备,包括机架,所述机架下侧部分开有动力室,本装置通过打磨杆推动锯片的各个齿牙位使其能够完成左移,并配和辅助凸轮的推动使其能够初步对锯片的齿牙进行打磨,并在其推动过程中会使打磨转盘间歇性下移,进而对锯片齿牙进行再次打磨,在两次打磨的配和下足以保证打磨的效果,从而保证不够锋利的锯片不会被直接舍弃,从而大大的增加了资源的利用程度,且能够通过对触发板的下移进行判断,使得液压缸能够将阻挡板外支,从而保证在有来人接近设备时进行阻挡有提示,从而避免因太过靠近设备而存在的安全隐患,本装置针对性强,能够较为完善的对锯片进行打磨,能够大大的节省资源的利用,并较少企业开支。(The invention discloses a safe sharpening device for saw blades, which comprises a frame, wherein a power chamber is arranged at the lower side part of the frame, the device pushes each tooth position of a saw blade through a polishing rod to enable the saw blade to move leftwards, and is matched with the pushing of an auxiliary cam to enable the saw blade to initially polish the teeth of the saw blade, and in the pushing process, a polishing turntable can intermittently move downwards to further polish the teeth of the saw blade, the polishing effect can be sufficiently ensured under the matching and the pushing of two times of polishing, so that the saw blade which is not sharp enough can not be directly abandoned, the utilization degree of resources is greatly increased, and a hydraulic cylinder can support a blocking plate outwards through judging the downward movement of a trigger plate, thereby ensuring that the blocking is prompted when a person approaches the device, avoiding the potential safety hazard caused by too close to the device, and the device has strong pertinence, can be comparatively perfect polish the saw bit, the utilization of saving the resource that can be great to less enterprise's spending.)

1. A safe sharpening equipment to saw bit, includes the frame, its characterized in that: the saw blade grinding machine is characterized in that a power chamber is arranged on the lower side of the machine frame, a motor is fixedly connected to the bottom wall of the lower right side of the power chamber, a grinding chamber is arranged on the machine frame on the upper side of the power chamber, a grinding auxiliary mechanism which can enable a saw blade to move back and forth by taking the motor as main power and spray water to the grinding auxiliary mechanism through a nozzle for cooling is arranged in the grinding chamber, a grinding turntable can grind the saw blade by taking the motor as main power and a saw blade grinding mechanism which can push the saw blade to move through a grinding rod is further arranged in the grinding chamber, protection chambers with outward opening directions are symmetrically arranged on the left side and the right side of the middle of the machine frame, trigger chambers with upward opening directions are symmetrically arranged on the left side and the right side of the lower side of the machine frame, a trigger rod is slidably connected in the trigger chambers, and the upper ends of the trigger, the saw blade protection device is characterized in that the lower end of a hydraulic cylinder is rotatably connected to the front side wall surface in the middle of the protection chamber, an equipment protection device which is used for stopping people from paying off the barrier plate when people approach the equipment protection device is arranged in the protection chamber and the trigger chamber and can be used as main power to stop people from coming off the barrier plate, the saw blade protection device polishes the saw blade through the saw blade polishing mechanism, and the saw blade is polished in an auxiliary mode through the blade polishing auxiliary mechanism and is protected through the equipment protection device.

2. A safety sharpening apparatus for saw blades according to claim 1, in which: the blade grinding auxiliary mechanism comprises a motor, a motor worm is connected to the motor in a rotating mode, the upper end of the motor worm extends into the grinding chamber, a motor cam is fixedly connected to the motor worm which is located in the grinding chamber, the motor worm is connected with the rack in a rotating mode, a motor belt wheel is fixedly connected to the motor worm which is located in the power chamber, the motor belt wheel is connected with an auxiliary belt wheel through an auxiliary belt, the auxiliary belt wheel is fixedly connected to an auxiliary shaft, the upper end of the auxiliary shaft extends into the grinding chamber and is fixedly connected with an auxiliary cam, an auxiliary bevel gear is fixedly connected to the lower end of the auxiliary shaft, a pumping bevel gear is meshed to the left side of the auxiliary bevel gear, the pumping bevel gear is fixedly connected to a pumping shaft, the left end of the pumping shaft extends into a pumping box and is fixedly connected with a pumping wheel, and the pumping shaft is rotatably connected with the pumping box, suction box fixed connection be in on the lateral wall face before the engine room, fixedly connected with outlet pipe on the lateral wall face before the suction box, suction box lower extreme fixedly connected with absorbs water the pipe, it stretches into the cistern bottom to absorb water the pipe lower extreme, the cistern sets up the engine room left side downside, outlet pipe other end fixed connection is on spouting the piece, spout a fixed connection in the left side the lower right part of protection room, spout a right lower extreme fixedly connected with spout, supplementary cam the universal joint front side sliding connection has on the room bottom wall of polishing the saw bit, the saw bit front side fixedly connected with push pedal reset spring in the frame, push pedal reset spring other end fixedly connected with saw bit push pedal, saw bit push pedal rear end face with saw bit front end face butt.

3. A safety sharpening apparatus for saw blades according to claim 1, in which: the saw blade polishing mechanism comprises a motor, the motor is rotatably connected with a motor worm, the upper end of the motor worm extends into the polishing chamber, a polishing worm wheel is meshed on the left side above the motor worm in the polishing chamber, the polishing worm wheel is fixedly connected to a polishing shaft, the polishing shaft is rotatably connected to the front end face and the rear end face of the polishing chamber, a polishing cam is fixedly connected to the polishing shaft on the rear side of the polishing worm wheel, a polishing pin is fixedly connected to the edge of the polishing cam, a polishing block is rotatably connected to the polishing pin, a middle rod is fixedly connected to the lower left side of the polishing block, a polishing rod is fixedly connected to the lower end face of the middle rod, the polishing rod is abutted against the tooth part of the saw blade, a polishing belt wheel is fixedly connected to the polishing shaft on the front side of the polishing worm wheel, and the polishing belt wheel is connected with a rotating belt wheel through a polishing belt, the rotary belt wheel is fixedly connected to the transition worm, the front end and the rear end of the transition worm are rotatably connected to the front side wall surface and the rear side wall surface of the upper left side of the grinding chamber, the transition worm is meshed with the transition worm wheel on the left side of the transition worm behind the rotary belt wheel, and the transition worm wheel is fixedly connected to the spline sleeve shaft.

4. A safety sharpening apparatus for saw blades according to claim 1, in which: spline sleeve epaxial end is rotated and is connected on the upper left side roof of the room of polishing, spline sleeve downside splined connection has the integral key shaft, integral key shaft sliding connection be in the frame and the lower extreme pass through the universal joint and polish the carousel hub connection, the carousel axle right-hand member fixedly connected with of polishing the carousel just the epaxial rotation of carousel of polishing is connected with the supporting shoe, fixedly connected with bracing piece on the bellying of supporting shoe right side, bracing piece downside butt has the balancing pole, balancing pole middle part through the torsional spring through the balancing axle with the room front and back lateral wall face of polishing rotates and is connected, the balancing pole right-hand member rotates and is connected with the buffering axle, rotate on the buffering axle and be connected with the buffer pulley, the buffering pulley upside with the cam butt of polishing.

5. A safety sharpening apparatus for saw blades according to claim 1, in which: the device protection device comprises the trigger rod, the upper end of the trigger rod is fixedly connected with the trigger plate, the lower end of the trigger rod is fixedly connected with an arc-shaped block, the lower end surface of the arc-shaped block is fixedly connected with a trigger plate reset spring, the other end of the trigger plate reset spring is fixedly connected with the bottom wall of the trigger chamber, the left and right side wall surfaces of the trigger chamber at the lower side of the arc-shaped block are provided with limit grooves, limit blocks are connected in the limit grooves in a sliding manner, the outer side end of each limit block is fixedly connected with a limit block reset spring, the other end of the limit block reset spring is fixedly connected with the side wall of the limit groove, the left and right side wall surfaces of the trigger rod are provided with sliding grooves, the top wall of each sliding groove is fixedly connected with a heart-shaped block reset spring, the lower end of the heart-shaped block reset, the pneumatic cylinder stretches out and goes up to rotate through pushing the axle and be connected with the part of the drive lever partially on the upper side, the drive lever lower extreme through the drive shaft with the lateral wall face rotates around the protection room and is connected, the drive lever upper end rotates and is connected with the fixed axle, fixed axle front end fixed connection is on rotating the handle, rotating the handle upper end through slider axle and slide sliding connection of slide piece downside, slide piece upper end fixed connection is in on the protection room roof, fixed axle rear end fixed connection has the connecting rod, connecting rod lower extreme fixedly connected with barrier plate.

Technical Field

The invention relates to the technical field of saw blade grinding equipment, in particular to safe blade grinding equipment for a saw blade.

Background

The use of various building materials has led to the use amount greatly increased of saw bit, and does not have the equipment that can polish again to the saw bit pertinence less sharp now to the change rate that leads to the saw bit is higher, and this makes the waste of resource comparatively serious and present equipment also can not be fine stop and suggestion to being close to the person, thereby has potential safety hazard.

Disclosure of Invention

The object of the present invention is to provide a safe sharpening device for saw blades, which overcomes the above-mentioned drawbacks of the prior art.

According to the invention, the safe blade grinding equipment aiming at the saw blade comprises a frame, wherein a power chamber is arranged on the lower side part of the frame, a motor is fixedly connected on the bottom wall of the lower right side of the power chamber, a grinding chamber is arranged on the frame on the upper side of the power chamber, a blade grinding auxiliary mechanism which can make the saw blade move back and forth by taking the motor as the main power and spray water to the blade through a nozzle for cooling is arranged in the grinding chamber and the power chamber, a saw blade grinding mechanism which can make a grinding turntable grind the saw blade by taking the motor as the main power and push the saw blade to move through a grinding rod is also arranged in the power chamber and the grinding chamber, protection chambers with outward opening directions are symmetrically arranged on the left side and the right side of the middle part of the frame, trigger chambers with upward opening directions are symmetrically arranged on the left side and the right side of the lower side of the frame, and a trigger rod, the upper end of the trigger rod extends out of the trigger chamber and is fixedly connected with a trigger plate, the front side wall surface in the middle of the protection chamber is rotatably connected with the lower end of a hydraulic cylinder, the protection chamber is internally provided with an equipment protection device which is used for stopping people from the barrier plate by taking the trigger plate as main power and can stop people from paying off the barrier plate when people approach, the equipment polishes the saw blade through the saw blade polishing mechanism, and the saw blade is polished in an auxiliary mode through the saw blade polishing auxiliary mechanism, and the equipment is protected through the equipment protection device.

On the basis of the technical scheme, the sharpening auxiliary mechanism comprises a motor, a motor worm is rotatably connected onto the motor, the upper end of the motor worm extends into the grinding chamber, a motor cam is fixedly connected onto the motor worm positioned in the grinding chamber, the motor worm is rotatably connected with the rack, a motor belt wheel is fixedly connected onto the motor worm positioned in the power chamber, the motor belt wheel is connected with an auxiliary belt wheel through an auxiliary belt, the auxiliary belt wheel is fixedly connected onto an auxiliary shaft, the upper end of the auxiliary shaft extends into the grinding chamber and is fixedly connected with an auxiliary cam, the lower end of the auxiliary shaft is fixedly connected with an auxiliary bevel gear, a pumping bevel gear is meshed with the left side of the auxiliary bevel gear, the pumping bevel gear is fixedly connected onto a pumping shaft, and the left end of the pumping shaft extends into a pumping tank and is fixedly connected with a pumping wheel, the water pumping shaft is rotatably connected with the water pumping box, the water pumping box is fixedly connected on the front side wall surface of the power chamber, a water outlet pipe is fixedly connected on the front side wall surface of the water pumping box, a water suction pipe is fixedly connected at the lower end of the water pumping box, the lower end of the water suction pipe extends into the bottom of the water storage tank, the water storage tank is arranged at the left lower side of the power chamber, the other end of the water outlet pipe is fixedly connected to a spraying block which is fixedly connected to the lower right part of the protection chamber on the left side, the right lower end of the spray block is fixedly connected with a spray nozzle, the auxiliary cam and the bottom wall of the polishing chamber on the front side of the universal joint are connected with the saw blade in a sliding way, the saw blade mechanism is characterized in that a push plate reset spring is fixedly connected to the rack on the front side of the saw blade, a saw blade push plate is fixedly connected to the other end of the push plate reset spring, and the end face of the rear side of the saw blade push plate is abutted to the end face of the front side of the saw blade.

On the basis of the technical scheme, the saw blade polishing mechanism comprises a motor, the motor is rotatably connected with a motor worm, the upper end of the motor worm extends into the polishing chamber, a polishing worm wheel is meshed on the left side above the motor worm in the polishing chamber, the polishing worm wheel is fixedly connected onto a polishing shaft, the polishing shaft is rotatably connected onto the front end face and the rear end face of the polishing chamber, a polishing cam is fixedly connected onto the polishing shaft on the rear side of the polishing worm wheel, a polishing pin is fixedly connected onto the edge of the polishing cam, a polishing block is rotatably connected onto the polishing pin, a middle rod is fixedly connected onto the lower left side of the polishing block, a polishing rod is fixedly connected onto the lower end face of the middle rod, the polishing rod is abutted against the tooth part of the saw blade, and a polishing belt wheel is fixedly connected onto the polishing shaft on the front side of the polishing worm wheel, the polishing belt wheel is connected with the rotating belt wheel through a polishing belt, the rotating belt wheel is fixedly connected onto a transition worm, the front end and the rear end of the transition worm are rotatably connected onto the front side wall surface and the rear side wall surface of the upper left side of the polishing chamber, a transition worm wheel is meshed on the left side of the transition worm at the rear part of the rotating belt wheel, and the transition worm wheel is fixedly connected onto a spline sleeve shaft.

On the basis of the technical scheme, spline sleeve shaft upper end is rotated and is connected on the upper left side roof of the room of polishing, spline shaft downside splined connection has the integral key shaft, integral key shaft sliding connection in the frame and the lower extreme pass through the universal joint with polish the carousel hub connection, polish carousel axle right-hand member fixedly connected with polish the carousel just polish epaxial rotation of carousel and be connected with the supporting shoe, fixedly connected with bracing piece on the bellying on supporting shoe right side, bracing piece downside butt has the balancing pole, balancing pole middle part through the torsional spring through the balancing axle with the room of polishing front and back lateral wall face rotate and be connected, the balancing pole right-hand member rotates and is connected with the buffering axle, the last rotation of buffering axle is connected with the buffer wheel, the buffer wheel upside with the cam butt of polishing.

On the basis of the technical scheme, the equipment protection device comprises the trigger rod, the upper end of the trigger rod is fixedly connected with the trigger plate, the lower end of the trigger rod is fixedly connected with an arc-shaped block, the lower end surface of the arc-shaped block is fixedly connected with a trigger plate reset spring, the other end of the trigger plate reset spring is fixedly connected with the bottom wall of the trigger chamber, the left and right side wall surfaces of the trigger chamber at the lower side of the arc-shaped block are provided with limit grooves, limit blocks are connected in the limit grooves in a sliding manner, the outer side end of each limit block is fixedly connected with a limit block reset spring, the other end of each limit block reset spring is fixedly connected with the side wall of each limit groove, the left and right side wall surfaces of the trigger rod are provided with sliding grooves, the top wall of each sliding groove is fixedly connected with a heart-shaped block reset spring, the, inductor electric connection has the pneumatic cylinder, it is connected with the part to the upper side of active lever to rotate through pushing the axle on the pneumatic cylinder extension end, the active lever lower extreme pass through the driving shaft with the lateral wall face rotates around the protection room and is connected, the active lever upper end is rotated and is connected with the fixed axle, fixed axle front end fixed connection is on rotating the handle, the slide sliding connection of slider axle and slide piece downside is passed through to the rotation handle upper end, slide piece upper end fixed connection be in on the protection room roof, fixed axle rear end fixed connection has the connecting rod, connecting rod lower extreme fixedly connected with barrier plate.

The invention has the beneficial effects that: the device can finish the left movement by pushing each tooth position of the saw blade through the polishing rod, and can preliminarily polish the teeth of the saw blade by being matched with the pushing of the auxiliary cam, and the polishing turntable intermittently moves downwards in the pushing process, so as to polish the saw blade teeth again, the grinding effect can be ensured under the matching of two times of grinding, thereby ensuring that the saw blade which is not sharp enough can not be directly abandoned, thereby greatly increasing the utilization degree of resources, and the hydraulic cylinder can support the outer part of the blocking plate by judging the downward movement of the trigger plate, thereby guarantee to block when having someone to approach equipment and have the suggestion to avoid because of being too close to the potential safety hazard that equipment exists, this device is with strong points, can be comparatively perfect polish the saw bit, the utilization of saving the resource that can be great, and less enterprise's spending.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a safety sharpening device for a saw blade according to the present invention;

FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;

FIG. 3 is an enlarged schematic view at "B" of FIG. 1;

fig. 4 is an enlarged schematic view at "C" of fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Referring to fig. 1-4, a safe sharpening device for saw blades according to an embodiment of the present invention includes a frame 10, a power chamber 12 is opened at a lower side portion of the frame 10, a motor 15 is fixedly connected to a bottom wall of a lower right side of the power chamber 12, a sharpening chamber 11 is provided on the frame 10 at an upper side of the power chamber 12, a sharpening auxiliary mechanism S1 which uses the motor 15 as a main power to enable a saw blade 35 to move forward and backward and sprays water through a nozzle 44 to the sharpening auxiliary mechanism S1 is provided in the sharpening chamber 11 and the power chamber 12, a sharpening rotary table 53 which uses the motor 15 as a main power to sharpen a saw blade is further provided in the power chamber 12 and the sharpening chamber 11, a sharpening mechanism S2 which uses a sharpening rod 29 to push the saw blade 35 to move is further provided in the middle of the frame 10, protection chambers 13 with outward openings are symmetrically provided at left and right sides of the lower side of the frame 10, trigger chambers 14 with upward openings are symmetrically provided at left and right sides of the, the saw blade grinding device comprises a trigger chamber 14, a trigger rod 58 is connected in a sliding mode in the trigger chamber 14, the upper end of the trigger rod 58 extends out of the trigger chamber 14 and is fixedly connected with a trigger plate 57, the front side wall surface in the middle of a protection chamber 13 is connected with the lower end of a hydraulic cylinder 74 in a rotating mode, an equipment protection device S3 which takes the trigger plate 57 and the hydraulic cylinder 74 as main power and can block a barrier plate 73 when a person approaches is arranged in the protection chamber 13 and the trigger chamber 14, the saw blade grinding device grinds a saw blade through a saw blade grinding mechanism S2, and then carries out auxiliary grinding on the saw blade 35 through a saw blade grinding auxiliary mechanism S1, and equipment is protected through an equipment protection device S3.

In addition, in one embodiment, the sharpening auxiliary mechanism S1 includes the motor 15, a motor worm 16 is rotatably connected to the motor 15, an upper end of the motor worm 16 extends into the grinding chamber 11, a motor cam 20 is fixedly connected to the motor worm 16 located in the grinding chamber 11, the motor worm 16 is rotatably connected to the frame 10, a motor pulley 18 is fixedly connected to the motor worm 16 located in the power chamber 12, the motor pulley 18 is connected to an auxiliary pulley 54 through an auxiliary belt 19, the auxiliary pulley 54 is fixedly connected to an auxiliary shaft 55, an upper end of the auxiliary shaft 55 extends into the grinding chamber 11 and is fixedly connected to an auxiliary cam 56, an auxiliary bevel gear 36 is fixedly connected to a lower end of the auxiliary shaft 55, a water pumping bevel gear 37 is engaged to the left side of the auxiliary bevel gear 36, the water pumping bevel gear 37 is fixedly connected to a water pumping shaft 38, the left end of the water pumping shaft 38 extends into a water pumping box 41 and is fixedly connected with a water pumping wheel 39, the water pumping shaft 38 is rotatably connected with the water pumping box 41, the water pumping box 41 is fixedly connected to the front side wall surface of the power chamber 12, the front side wall surface of the water pumping box 41 is fixedly connected with a water outlet pipe 40, the lower end of the water pumping box 41 is fixedly connected with a water suction pipe 42, the lower end of the water suction pipe 42 extends into the bottom of a water storage tank 17, the water storage tank 17 is arranged at the left lower side of the power chamber 12, the other end of the water outlet pipe 40 is fixedly connected to a spraying block 43, the spraying block 43 is fixedly connected to the left side of the right lower part of the protection chamber 13, a spraying block 43 is fixedly connected with a nozzle 44 at the right lower end, the auxiliary cam 56 and the universal joint 50 at the front side of the bottom wall of the polishing chamber 11 are slidably connected with the saw blade 35, the other end of the push plate reset spring 77 is fixedly connected with a saw blade push plate 76, and the end surface of the rear side of the saw blade push plate 76 is abutted against the end surface of the front side of the saw blade 35.

In addition, in one embodiment, the saw blade grinding mechanism S2 includes the motor 15, the motor worm 16 is rotatably connected to the motor 15, the upper end of the motor worm 16 extends into the grinding chamber 11, a grinding worm wheel 21 is engaged with the left side of the upper part of the motor worm 16 in the grinding chamber 11, the grinding worm wheel 21 is fixedly connected to a grinding shaft 24, the grinding shaft 24 is rotatably connected to the front and rear end faces of the grinding chamber 11, a grinding cam 22 is fixedly connected to the grinding shaft 24 at the rear side of the grinding worm wheel 21, a grinding pin 27 is fixedly connected to the edge of the grinding cam 22, a grinding block 26 is rotatably connected to the grinding pin 27, an intermediate rod 28 is fixedly connected to the lower side of the grinding block 26, a grinding rod 29 is fixedly connected to the lower end face of the intermediate rod 28, and the grinding rod 29 abuts against the teeth portion of the saw blade 35, the polishing device is characterized in that a polishing belt wheel 23 is fixedly connected to the polishing shaft 24 on the front side of the polishing worm wheel 21, the polishing belt wheel 23 is connected with a rotating belt wheel 47 through a polishing belt 25, the rotating belt wheel 47 is fixedly connected to a transition worm 48, the front end and the rear end of the transition worm 48 are rotatably connected to the front side wall surface and the rear side wall surface of the left upper side of the polishing chamber 11, a transition worm wheel 46 is meshed to the left side of the transition worm 48 behind the rotating belt wheel 47, and the transition worm wheel 46 is fixedly connected to a spline sleeve shaft 45.

In addition, in one embodiment, the upper end of the spline sleeve shaft 45 is rotatably connected to the top wall of the upper left side of the grinding chamber 11, a spline shaft 49 is connected with the lower side of the spline sleeve shaft 45 through a spline, the spline shaft 49 is connected on the frame 10 in a sliding way, the lower end of the spline shaft 49 is connected with a grinding turntable shaft 51 through a universal joint 50, the right end of the polishing turntable shaft 51 is fixedly connected with the polishing turntable 53, the polishing turntable shaft 51 is rotatably connected with a supporting block 52, a supporting rod 78 is fixedly connected to the convex part at the right side of the supporting block 52, a balance bar 30 is abutted to the lower side of the supporting rod 78, the middle part of the balancing pole 30 is rotationally connected with the front and rear side wall surfaces of the grinding chamber 11 through a balancing shaft 31 by a torsion spring 32, the right end of the balance rod 30 is rotatably connected with a buffer shaft 33, a buffer wheel 34 is rotatably connected on the buffer shaft 33, and the upper side of the buffer wheel 34 is abutted to the polishing cam 22.

In addition, in one embodiment, the device protection device S3 includes the trigger rod 58, the trigger plate 57 is fixedly connected to the upper end of the trigger rod 58, the arc block 61 is fixedly connected to the lower end of the trigger rod 58, the trigger plate return spring 62 is fixedly connected to the lower end surface of the arc block 61, the other end of the trigger plate return spring 62 is fixedly connected to the bottom wall of the trigger chamber 14, the left and right side wall surfaces of the trigger chamber 14 on the lower side of the arc block 61 are provided with limit grooves, the limit block 64 is slidably connected to the limit grooves, the outer end of the limit block 64 is fixedly connected to the limit block return spring 65, the other end of the limit block return spring 65 is fixedly connected to the side wall of the limit groove, the left and right side wall surfaces of the trigger rod 58 are provided with slide grooves, the top wall of the slide grooves is fixedly connected to the heart-shaped block return spring 60, the, fixedly connected with inductor 63 in the 14 diapalls of trigger chamber, inductor 63 electric connection has pneumatic cylinder 74, it is connected with the part of the drive lever 71 partially to go up to rotate through pushing shaft 79 on the pneumatic cylinder 74 extension end, drive lever 71 lower extreme pass through driving shaft 72 with the protection room 13 front and back lateral wall face rotates and is connected, drive lever 71 upper end rotates and is connected with fixed axle 69, fixed axle 69 front end fixed connection is on rotating handle 68, the slide sliding connection of slider axle 70 and slide piece 66 downside is passed through to rotating handle 68 upper end, slide piece 66 upper end fixed connection be in on the protection room 13 roof, fixed axle 69 rear end fixed connection has connecting rod 75, connecting rod 75 lower extreme fixedly connected with barrier plate 73.

In the initial state, the hydraulic cylinder 74 is not yet extended, the trigger plate return spring 62 is not yet compressed, the arc block 61 is located on the upper side of the limit block 64, and the push plate return spring 77 is not yet compressed.

When the polishing machine needs to polish, the motor 15 is started, the motor belt wheel 18, the motor cam 20 and the polishing worm wheel 21 are driven to rotate by the starting of the motor 15, the polishing worm wheel 21 drives the polishing cam 22 and the polishing belt wheel 23 to rotate, the polishing cam 22 can drive the polishing pin 27 to rotate and move leftwards at the same time of moving downwards, the polishing pin 27 can drive the middle rod 28 through the polishing block 26 to drive the polishing rod 29 to push the saw blade 35 to move leftwards, the polishing pin 27 can drive the polishing rod 29 and the polishing block 26 to rotate relatively downwards, so that the included angle between the middle rod 28 and the saw blade 35 is changed, the angle change when the saw blade 35 moves leftwards is adapted, when the polishing pin 27 rotates to the upper half part of the polishing cam 22, the polishing rod 29 can be pulled to the next tooth socket on the right side along the teeth of the saw blade 35, the rotation of the grinding cam 22 also periodically presses the buffer wheel 34 to make the balance bar 30 rotate counterclockwise by an angle around the balance shaft 31, when the buffer wheel 34 loses the pressure of the grinding cam 22, the buffer wheel rotates counterclockwise by an angle under the action of the torsion spring 32, so that the balance bar 30 moves down on the left side, the downward movement of the balance bar 30 on the left side makes the support bar 78 drive the support block 52 to move down, so that the spline shaft 49 slides with the spline sleeve shaft 45, and the grinding turntable 53 abuts against the teeth of the saw blade 35, the rotation of the grinding belt wheel 23 drives the rotating belt wheel 47 to rotate through the grinding belt 25, so that the transition worm 48 drives the transition worm wheel 46 to rotate the spline sleeve shaft 45, and the rotation of the spline sleeve shaft 45 drives the spline shaft 49 to rotate, the rotation of the spline shaft 49 drives the grinding turntable shaft 51 to rotate through the universal joint 50, so that the grinding turntable 53 rotates to grind the tooth parts of the saw blade 35 again, the rotation of the motor cam 20 periodically pushes the saw blade 35 to move forward, the saw blade 35 moves forward to make the push plate return spring 77 accumulate force, the saw blade 35 resets under the action of the push plate return spring 77 when the motor cam 20 rotates away from the saw blade 35, so as to realize the forward and backward movement of the saw blade 35, thereby realizing the grinding purpose by matching the grinding turntable 53 with the grinding rod 29, the rotation of the motor pulley 18 also drives the auxiliary pulley 54 to rotate through the auxiliary belt 19, the rotation of the auxiliary pulley 54 drives the auxiliary cam 56 and the auxiliary bevel gear 36 to rotate, and the rotation of the auxiliary cam 56 drives the left part of the saw blade 35, so that the left and right sides of the saw blade 35 move forward and backward in a consistent distance without tilting, the rotation of the auxiliary bevel gear 36 drives the pumping bevel gear 37 to rotate the pumping wheel 39, the rotation of the pumping wheel 39 causes the water suction pipe 42 to suck water in the water storage tank 17 and then the water is ejected out of the nozzle 44 through the water outlet pipe 40, so as to cool the saw blade 35 heated by grinding, when a person comes near the equipment, the trigger plate 57 is stepped down, the downward movement of the trigger plate 57 causes the trigger rod 58 to push the arc block 61 to push the limit block 64 open and fall to the lower side thereof, so that the sensor 63 is triggered, the triggering of the sensor 63 starts the hydraulic cylinder 74 to extend, the extension of the hydraulic cylinder 74 causes the push shaft 79 to rotate the driving rod 71 around the driving shaft 72, and the rotation of the driving rod 71 causes the fixed shaft 69 to move outwards while causing the rotating handle 68 to rotate around the driving shaft 72 The slider shaft 70 moves upwards in a rotating manner, and the fixed shaft 69 is fixedly connected with the rotating handle 68, so that the rotating handle 68 rotates around the slider shaft 70 to enable the fixed shaft 69 to rotate, the connecting rod 75 fixedly connected with the fixed shaft drives the blocking plate 73 to rotate, the blocking plate 73 is supported, blocking of a visitor is completed, the trigger plate 57 is stepped again to enable the core-shaped block 59 to move downwards to the lower side of the limiting block 64, at the moment, the lower side of the core-shaped block 59 is completely attached to the upper side of the arc-shaped block 61, the limiting block 64 loses a clamping point, and the trigger plate 57 enables the limiting block 64 to slide and reset along a curved slope on the upper side of the core-shaped block 59 under the action of the trigger plate resetting spring 62.

The invention has the beneficial effects that: the device can finish the left movement by pushing each tooth position of the saw blade through the polishing rod, and can preliminarily polish the teeth of the saw blade by being matched with the pushing of the auxiliary cam, and the polishing turntable intermittently moves downwards in the pushing process, so as to polish the saw blade teeth again, the grinding effect can be ensured under the matching of two times of grinding, thereby ensuring that the saw blade which is not sharp enough can not be directly abandoned, thereby greatly increasing the utilization degree of resources, and the hydraulic cylinder can support the outer part of the blocking plate by judging the downward movement of the trigger plate, thereby guarantee to block when having someone to approach equipment and have the suggestion to avoid because of being too close to the potential safety hazard that equipment exists, this device is with strong points, can be comparatively perfect polish the saw bit, the utilization of saving the resource that can be great, and less enterprise's spending.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.