Automatic grinding system for mower blade

Abstract

The utility model discloses an automatic grinding system for a mower blade. The automatic grinding system comprises a control box, a workbench, a grinding table, a movable grinding device and a conveying device. According to the automatic grinding system for the mower blade, the feeding pushing mechanism, the discharging storage mechanism, the conveying device and the two grinding branches are matched, the blade can be automatically ground, workers do not need to make direct contact with the blade and transfer the blade, the blade transfer safety is improved, and the blade production efficiency is improved; by means of detachable installation of the discharging storage mechanism, the discharging storage mechanism can be directly detached after being fully stored, and the blades can be conveniently moved in groups; the positioning frustum is used for positioning the blade, meanwhile, the first electromagnet attracts the blade, the blade is attached to the blade model base, displacement is prevented during grinding, and meanwhile vibration is reduced.

Description

Technical Field

[0001] The utility model relates to a grinding system, in particular to an automatic grinding system for a lawn mower blade. Background Art

[0002] With the rapid development of machine vision and industrial robots in the grinding and polishing industry, intelligent, automated, and low-cost processing and manufacturing have become a trend in scientific and technological progress, and achieving automation and intelligent production processes is a key consideration for enterprises. Among the lawn mowers available on the market, the main working and wear-prone parts are the lawn mower blades. Blades are made of rigid materials and require loading and unloading during the production process. The existing method of loading and unloading blades is to manually place the blades on the grinding mechanism and then manually unload them. Due to the sharp blades, this work step poses a significant safety hazard and low work efficiency. Moreover, this manual and semi-automatic grinding method can no longer meet the production efficiency requirements of the product. Therefore, an automatic grinding system for lawn mower blades is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide an automatic sharpening system for lawn mower blades, which can automatically sharpen blades to improve production efficiency and safety.

[0004] Technical solution: The utility model provides an automatic grinding system for lawn mower blades, comprising a control box, a workbench, a grinding table, a mobile grinding device and a conveying device; the mobile grinding device comprises two grinding branches;

[0005] A controller is provided in the control box; a key panel electrically connected to the controller is installed on the control box; the workbench is located on the right side of the grinding table; a blade model seat is longitudinally installed on the grinding table through a positioning frame; a first electromagnet controlled by the controller is installed on the lower side of the blade model seat; two grinding branches are installed on the grinding table, for simultaneously grinding the left and right sides of the blade on the blade model seat; a unloading and storage mechanism for storing unpolished blades is detachably installed on the workbench; a loading and pushing mechanism for storing and pushing out unpolished blades is installed on the workbench; a conveying device is installed on the workbench, for loading the unpolished blades pushed out by the loading and pushing mechanism onto the blade model seat and loading and unloading the polished blades from the blade model seat to the unloading and storage mechanism; the mobile grinding device, the conveying device and the loading and pushing mechanism are all driven and controlled by the controller.

[0006] Furthermore, a display screen electrically connected to the controller is installed on the control box.

[0007] Furthermore, the grinding branch includes a spray structure, a grinding mechanism and a position adjustment mechanism; the position adjustment mechanism is installed on the grinding table; the grinding mechanism is installed on the position adjustment mechanism for grinding the blade; the position adjustment mechanism is used to drive the grinding mechanism to move longitudinally and adjust the distance between the grinding mechanism and the blade model seat; a water retaining fence is provided on the edge of the grinding table; the spray structure is installed on the water retaining fence for spraying water on the blade model seat.

[0008] Furthermore, the position adjustment mechanism includes a longitudinal drive unit, a transverse drive unit and a fine-tuning unit; the longitudinal drive unit is installed on the polishing table; the transverse drive unit is installed on the longitudinal drive unit, and the longitudinal unit drives the transverse unit to move longitudinally; the fine-tuning unit is installed on the transverse drive unit, and the transverse drive unit drives the fine-tuning unit to move transversely; the polishing mechanism is installed on the fine-tuning unit, and the fine-tuning unit fine-tunes the position of the polishing mechanism; the longitudinal drive unit and the transverse drive unit are both driven and controlled by the controller.

[0009] Furthermore, the grinding mechanism includes an angle adjustment unit, a grinding wheel motor and a grinding wheel; the angle adjustment unit is installed on the fine-tuning unit; the grinding wheel is rotatably installed on the angle adjustment unit through a driving shaft, and the angle of the grinding wheel is adjusted by the angle adjustment unit; the grinding wheel motor is used to drive the driving shaft to rotate, and is electrically connected to the controller through the grinding wheel drive circuit.

[0010] Furthermore, the spray structure includes a spray positioning frame and a spray water pipe; the spray positioning frame is installed on the water retaining enclosure; the spray water pipe is longitudinally fixed on the upper end of the spray positioning frame for connecting with the external water pipe; a plurality of nozzles are arranged at intervals on the spray water pipe.

[0011] Furthermore, the loading and pushing mechanism includes a storage frame, a pushing motor, a pushing shaft, a pushing gear rack transmission pair and a pushing plate; the storage frame is fixed on the workbench; the unpolished blades are stacked horizontally in the storage frame; pushing holes are provided at the bottom of the storage frame; the pushing plate is installed on the workbench in a transversely movable manner, and is used to pass through two pushing holes to push the bottom blade horizontally out of the storage frame; the pushing motor drives the pushing plate to move horizontally through the pushing gear rack transmission pair, and is electrically connected to the controller through the pushing drive circuit.

[0012] Furthermore, the blanking storage mechanism includes a storage base and multiple limit bars; the storage base is longitudinally slidably installed on the workbench; storage adjustment seats are slidably and adjustably installed at the four edges of the storage base, and the storage adjustment seats on the front and rear sides move longitudinally, and the storage adjustment seats on the left and right sides move horizontally; each limit bar is fixed on each storage adjustment seat respectively.

[0013] Furthermore, the conveying device includes a transport column, a blade grabbing mechanism, a transverse transport mechanism and a vertical transport mechanism; the transport column is fixed on the workbench; the transverse transport mechanism is installed on the upper end of the transport column; the vertical transport mechanism is installed on the transverse transport mechanism, and the transverse transport mechanism drives the vertical transport mechanism to move transversely; the blade grabbing mechanism is installed on the lower end of the vertical transport mechanism, and is used to grab or release the blade, and the vertical transport mechanism drives the blade grabbing mechanism to move vertically; the blade grabbing mechanism, the transverse transport mechanism and the vertical transport mechanism are all driven and controlled by the controller.

[0014] Furthermore, the blade grabbing mechanism includes a blade grabbing seat and a second electromagnet; the blade grabbing seat is longitudinally installed on the lower end of the vertical transport mechanism; a distance measuring sensor electrically connected to the controller is installed on the blade grabbing seat; the second electromagnet is installed on the upper side of the blade grabbing seat and is driven and controlled by the controller.

[0015] The present invention has the following advantages compared with the prior art: the automatic grinding of the blade can be realized by utilizing the cooperation between the loading and pushing mechanism, the unloading and storing mechanism, the conveying device and the two grinding branches; the pushing mechanism pushes out the unground blade; the conveying device grabs the unground blade, transports the unground blade to the blade model seat and then releases it; the first electromagnet is energized to adsorb and position the blade; the two grinding branches simultaneously move and grind the left and right sides of the blade; the conveying device grabs the polished blade and moves it to the unloading and storing mechanism, releases the polished blade and allows the blade to fall into the unloading and storing mechanism, without the need for staff to directly contact and transfer the blade, thereby improving the safety of blade transfer and improving the efficiency of blade production; the unloading and storing mechanism is detachable, so that the unloading and storing mechanism can be directly disassembled after it is full, which is convenient for moving the blades in groups; the positioning cone is used to position the blade, and the first electromagnet adsorbs the blade so that the blade fits on the blade model seat, thereby preventing displacement during grinding and reducing vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the main view of the utility model;

[0017] Figure 2 This is a top view of the mobile grinding device of the utility model;

[0018] Figure 3 This is a schematic diagram of the installation of the mobile grinding device of the utility model;

[0019] Figure 4 This is a schematic structural diagram of the grinding mechanism of the utility model;

[0020] Figure 5 This is a schematic structural diagram of the edge positioning structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the spray structure of the utility model;

[0022] Figure 7 This is a top view of the blanking and storage mechanism of the utility model;

[0023] Figure 8 This is a top view of the feeding and pushing mechanism of the utility model;

[0024] Figure 9 This is a schematic diagram of the circuit structure of the utility model;

[0025] In the figure: 104, grinding table; 105, drainage pipe; 106, support foot; 107, positioning frame; 108, positioning locking bolt; 109, first electromagnet; 110, positioning cone; 111, blade model seat; 112, spray positioning frame; 113, buckle notch; 114, spray locking bolt; 115, spray water pipe; 116, nozzle; 117, bottom guide rail; 118, bottom moving seat; 119, edge positioning plate; 120, slope surface; 121, adjustment plate; 122, edge adjustment bolt; 123, positioning locking nut; 1 24. Waterproof platform; 125. Longitudinal guide rail; 126. Longitudinal drive screw; 127. Longitudinal movement seat; 128. Longitudinal motor; 129. Synchronous shaft; 130. Transverse guide rail; 131. Transverse drive screw; 132. Transverse motor; 133. Fine-tuning seat; 134. Transverse drive seat; 135. Fine-tuning lock nut; 136. Fine-tuning bolt; 137. Column; 138. Angle adjustment disc; 139. Angle locking bolt; 140. Angle adjustment hole; 141. Angle adjustment seat; 142. Grinding wheel motor; 143. Grinding wheel;

[0026] 204. Workbench; 205. Support legs; 206. Storage base; 207. Longitudinal slide rail; 208. Limit bar; 209. Thumb bolt; 211. Storage adjustment slot; 212. Storage adjustment seat; 214. Storage frame; 215. Push motor; 216. Push gear; 217. Guide bar; 218. Push plate; 219. Push shaft; 220. Push rack; 227. Transport column; 228. Horizontal transport rod; 229. Horizontal sliding slot; 230. Horizontal transport seat; 231. Horizontal pulley; 232. Translation motor; 233. Horizontal transport gear; 234. Horizontal transport rack; 235. Vertical transport rod; 236. Vertical sliding slot; 237. Lifting motor; 238. Vertical transport gear; 239. Vertical transport rack; 240. Blade grabbing seat; 241. Second electromagnet;

[0027] 4. Blade; 5. Distance sensor; 6. Control box; 7. Display screen; 8. Key panel. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0029] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0030] In the description of the present invention, it should be understood that the terms "left", "right", "front", "back", "up", "down", "top", "bottom", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0031] Example 1:

[0032] like Figure 1-9 As shown, the present invention provides an automatic grinding system for lawn mower blades, comprising: a control box 6, a workbench 204, a grinding table 104, a mobile grinding device and a conveying device; the mobile grinding device comprises two grinding branches;

[0033] The workbench 204 is located on the right side of the polishing table 104; support legs 205 are provided at the four corners of the lower side of the workbench 204; support feet 106 are fixed at the four corners of the lower side of the polishing table 104;

[0034] A drain pipe 105 is provided on the grinding table 104; a positioning frame 107 is L-shaped; the vertical frame of the positioning frame 107 is fixed to the upper side of the grinding table 104; a blade mold seat 111 for mounting the blade 4 is installed on the longitudinal frame of the positioning frame 107 through a positioning locking bolt 108;

[0035] A first electromagnet 109 is mounted on the lower side of the blade model seat 111; a positioning cone 110 is provided in the middle of the upper side of the blade model seat 111; a positioning hole for inserting the positioning cone 110 is provided in the middle of the blade 4;

[0036] The two grinding branches are mounted on the grinding table 104 and are used to grind the left and right sides of the blade 4 on the blade mold seat 111 simultaneously; a material unloading and storage mechanism for storing unpolished blades 4 is detachably mounted on the workbench 204; a material loading and pushing mechanism for storing and pushing out unpolished blades 4 is mounted on the workbench 204;

[0037] The conveying device is installed on the workbench 204 and is used to load the unpolished blade 4 pushed out by the loading and pushing mechanism onto the blade mold seat 111 and to load and unload the polished blade 4 from the blade mold seat 111 to the unloading and receiving mechanism;

[0038] The control box 6 is installed on the conveying device; a controller is provided in the control box 6; a key panel 8 electrically connected to the controller is installed on the control box 6; the mobile grinding device, the conveying device and the feeding and pushing mechanism are all driven and controlled by the controller; a first electric control switch electrically connected to the controller is connected in series to the power supply line of the first electromagnet 109.

[0039] By utilizing the cooperation between the feeding and pushing mechanism, the unloading and receiving mechanism, the conveying device and the two grinding branches, the blade 4 can be automatically ground. The pushing mechanism pushes out the unground blade 4, the conveying device grabs the unground blade 4, transports the unground blade 4 to the blade model seat 111 and then releases it. The first electromagnet 109 is energized to adsorb and position the blade 4. The two grinding branches move and grind the left and right sides of the blade 4 at the same time. The conveying device grabs the polished blade 4 and moves it to the unloading and receiving mechanism, and releases the polished blade. The sheet 4 makes the blade 4 fall into the blanking storage mechanism, and there is no need for the staff to directly touch the blade 4 and transfer it, which improves the safety of the blade 4 transfer and improves the efficiency of the blade 4 production; the blanking storage mechanism is detachable, so that the blanking storage mechanism can be directly disassembled after it is full, which is convenient for the blades 4 to be moved in groups; the positioning cone 110 is used to position the blade 4, and at the same time the first electromagnet 109 adsorbs the blade 4, so that the blade 4 fits on the blade model seat 111, preventing displacement during grinding and reducing vibration.

[0040] Furthermore, a display screen 7 electrically connected to the controller is mounted on the control box 6. The display screen 7 is used to display information under the control of the controller.

[0041] Furthermore, the grinding branch includes a spraying structure, a grinding mechanism, a position adjustment mechanism, and an edge positioning structure; the edge positioning structure includes a bottom guide rail 117, a bottom movable seat 118, an edge positioning plate 119, and an edge adjustment bolt 122;

[0042] The bottom guide rails 117 of the two edge positioning structures are respectively installed horizontally on the right rear side and the left front side of the upper side of the grinding table 104; the bottom movable seat 118 is installed on the bottom guide rail 117 in a horizontal sliding manner; the lower end of the edge positioning plate 119 is fixed on the bottom movable seat 118; an adjustment plate 121 is fixed on the bottom guide rail 117; the edge adjustment bolt 122 is screwed through the adjustment plate 121, and the end is rotatably installed on the edge positioning plate 119; a slope surface 120 is provided on the upper side of the edge positioning plate 119 for guiding the blade 4 to the blade model seat 111; a thread is screwed on the edge adjustment bolt 122 It is equipped with a positioning locking nut 123 for pressing tightly against the adjustment plate 121; the position adjustment mechanisms of the two grinding branches are respectively installed on the left rear side and the right front side of the upper side of the grinding table 104; the grinding mechanism is installed on the position adjustment mechanism, and the grinding mechanisms of the two grinding branches are used to grind the left rear side and the right front side of the blade 4; the position adjustment mechanism is used to drive the grinding mechanism to move longitudinally and adjust the distance between the grinding mechanism and the blade model seat 111; a water retaining enclosure is provided on the edge of the grinding table 104; two spraying structures are respectively installed on the water retaining enclosure on the front and rear sides for spraying water on the blade model seat 111.

[0043] Using two grinding branches to grind both sides of the blade 4 simultaneously can effectively improve the grinding efficiency of the blade 4, and can achieve one-time grinding in place without the need for manual flipping of the blade 4, thereby improving safety; using a position adjustment mechanism to drive the grinding mechanism to move longitudinally to achieve grinding of the blade 4, and at the same time, the distance between the grinding mechanism and the blade model seat 111 can be adjusted according to the different widths of the blade 4, thereby improving the versatility of the grinding device; using a spray structure to spray water on the blade 4, it has the effects of cooling, lubricating and improving efficiency during the grinding process; using the cooperation between the bottom guide rail 117, the bottom movable seat 118 and the edge adjustment bolt 122, the distance between the edge positioning plate 119 and the blade model seat 111 can be adjusted according to the width of the blade 4, so that the blade 4 can be against the edge positioning plate 119 during the grinding process, thereby preventing the blade 4 from rotating and ensuring the grinding effect.

[0044] Furthermore, the position adjustment mechanism includes a longitudinal drive unit, a transverse drive unit, and a fine-tuning unit; the longitudinal drive unit includes a longitudinal motor 128, a synchronous shaft 129, two longitudinal guide rails 125, and two longitudinal drive screws 126; the transverse drive unit includes a transverse motor 132, a transverse guide rail 130, and a transverse drive screw 131; the fine-tuning unit includes a fine-tuning seat 133 and a fine-tuning bolt 136;

[0045] The two longitudinal guide rails 125 are longitudinally fixed to the upper side of the grinding table 104 through the waterproof platform 124; a longitudinal moving seat 127 is longitudinally slidably mounted on each of the two longitudinal guide rails 125; two longitudinal driving screws 126 are respectively rotatably mounted longitudinally in the two longitudinal guide rails 125 and are respectively screwed through the corresponding longitudinal moving seats 127; a synchronous rotating shaft 129 is rotatably mounted transversely on the two longitudinal guide rails 125, and its two ends are respectively connected to the two longitudinal driving screws 126 through a bevel gear transmission pair; a longitudinal motor 128 is used to drive one longitudinal driving screw 126 to rotate, and is electrically connected to the controller through a longitudinal driving circuit;

[0046] The two ends of the transverse guide rail 130 are respectively fixed to the two longitudinal movable seats 127; a transverse drive seat 134 is mounted on the transverse guide rail 130 for transverse movement; a transverse drive screw 131 is rotatably mounted transversely within the transverse guide rail 130 and is threadedly engaged with the transverse drive seat 134; a transverse motor 132 is used to drive the transverse drive screw 131 to rotate and is electrically connected to the controller via a transverse drive circuit;

[0047] The fine-tuning seat 133 is installed on the transverse guide rail 130 in a transverse sliding manner; the fine-tuning ear seats are provided on the fine-tuning seat 133, respectively located on the left and right sides of the transverse drive seat 134; the fine-tuning bolt 136 is rotatably installed on the two fine-tuning ear seats, and is threadedly screwed through the transverse drive seat 134; a fine-tuning locking nut 135 is threadedly screwed on the fine-tuning bolt 136 for tightening on one of the fine-tuning ear seats.

[0048] The longitudinal movement motor 128 is used to drive one of the longitudinal movement drive screws 126 to rotate under the control of the controller, and the synchronous shaft 129 drives the other longitudinal movement drive screw 126 to rotate synchronously through the bevel gear transmission pair, thereby driving the two longitudinal moving seats 127 to move synchronously, thereby ensuring that the transverse movement drive unit can perform longitudinal translation; the transverse movement motor 132 is used to drive the transverse movement drive screw 131 to rotate under the control of the controller, so that the transverse movement drive seat 134 can drive the fine-tuning unit to move laterally, and can feed during grinding to complete the grinding of the blade 4, and quickly retract after the grinding is completed to facilitate the removal of the blade 4 and the installation of the next blade 4; the cooperation between the transverse movement drive seat 134, the fine-tuning seat 133 and the fine-tuning bolt 136 can make small adjustments to the position of the grinding mechanism according to the wear of the grinding wheel 143 of the grinding mechanism, without adjusting the feed amount of the transverse movement motor 132.

[0049] Furthermore, the grinding mechanism includes an angle adjustment unit, a grinding wheel motor 142 and a grinding wheel 143; the angle adjustment mechanism includes a column 137, an angle adjustment disc 138 and an angle adjustment seat 141; the lower end of the column 137 is fixed on the fine-tuning seat 133, and the angle adjustment seat 141 is swingably mounted on the upper end of the column 137; the angle adjustment disc 138 is fixed on the upper end of the column 137; a plurality of angle adjustment holes 140 are arranged at intervals on the circumferential edge of the angle adjustment disc 138; an angle locking bolt 139 is threadedly engaged on the angle adjustment seat 141 and passes through one of the angle adjustment holes 140; the grinding wheel 143 is rotationally mounted on the angle adjustment seat 141 through a driving shaft; the grinding wheel motor 142 is used to drive the driving shaft to rotate, and is electrically connected to the controller through a grinding wheel driving circuit.

[0050] By utilizing the cooperation between the angle adjustment disc 138, the angle adjustment seat 141 and the angle locking bolt 139, the inclination angle of the grinding wheel 143 can be adjusted. The angle of the angle adjustment seat 141 is adjusted according to the grinding requirements of the blade 4, and the angle locking bolt 139 is passed through the corresponding angle adjustment hole 140 and then screwed on the angle adjustment seat 141 to achieve angle adjustment of the grinding wheel 143.

[0051] Furthermore, the spray structure includes a spray positioning frame 112 and a spray water pipe 115; a snap groove 113 is provided on the spray positioning frame 112, which is snapped onto the water retaining enclosure; a spray locking bolt 114 is threadedly screwed on the spray positioning frame 112, and the end of the spray water pipe is tightly pressed onto the water retaining enclosure; the spray water pipe 115 is longitudinally fixed on the upper end of the spray positioning frame 112 for connecting with an external water pipe; a plurality of nozzles 116 are arranged at intervals on the side of the spray water pipe 115 facing the blade model seat 111.

[0052] By utilizing the installation method of the spray positioning frame 112, the spray structure can be adaptively adjusted according to the blade 4 to ensure that water can be sprayed on the blade 4, thereby achieving the effects of cooling, lubricating and improving efficiency during the grinding process.

[0053] Furthermore, the feeding and pushing mechanism includes a storage frame 214, a pushing motor 215, a pushing shaft 219, a pushing gear rack transmission pair and a pushing plate 218; the pushing gear rack transmission pair includes a pushing gear 216 and a pushing rack 220; the storage frame 214 is fixed on the upper side of the workbench 204; the unground blades 4 are horizontally stacked in the storage frame 214; pushing holes are provided at the bottom of the left and right sides of the storage frame 214; the pushing plate 218 is horizontally movably installed on the upper side of the workbench 204, and is used to pass through the two pushing holes. hole, pushing the bottom blade 4 horizontally out of the storage frame 214; a guide bar 217 is horizontally installed on the workbench 204, which slides with the front and rear edges of the pushing plate 218; the pushing rack 220 is horizontally fixed on the upper side of the pushing plate 218; the pushing shaft 219 is rotatably installed longitudinally on the upper side of the workbench 204; the pushing gear 216 is installed on the pushing shaft 219 and meshes with the pushing rack 220; the pushing motor 215 is used to drive the pushing shaft 219 to rotate, and is electrically connected to the controller through the pushing drive circuit.

[0054] The pushing motor 215 is used to drive the pushing shaft 219 to rotate under the control of the controller. The pushing shaft 219 drives the pushing plate 218 to move horizontally through the pushing gear rack transmission pair, pushing the bottom blade 4 horizontally out of the storage frame 214 to facilitate the conveying device to grab the blade 4; the two guide bars 217 are used to slide and guide the pushing plate 218 to ensure that the pushing plate 218 can pass through the pushing hole.

[0055] Furthermore, the blanking and storage mechanism includes a storage base 206 and a plurality of limit bars 208; two longitudinal slide rails 207 are longitudinally arranged on the upper side surface of the workbench 204; two longitudinal slide grooves that slide in cooperation with the two longitudinal slide rails 207 are longitudinally arranged on the lower side surface of the storage base 206; storage adjustment grooves 211 are provided at the four edges of the upper side surface of the storage base 206; a storage adjustment seat 212 is slidingly arranged in each storage adjustment groove 211; the storage adjustment seats 212 on the front and rear sides move longitudinally, and the storage adjustment seats 212 on the left and right sides move horizontally; a hand-tightening bolt 209 for driving the corresponding storage adjustment seat 212 to move is rotatably installed on each storage adjustment groove 211; the lower end of each limit bar 208 is respectively fixed on the upper side surface of the storage adjustment seat 212.

[0056] The hand-tightened bolts 209 are screwed according to the size of the blade 4, so that the storage adjustment seats 212 drive the limit bars 208 to move to adapt to the blade 4, reducing the probability of the blade 4 sliding or bumping in the blanking storage mechanism. At the same time, the cooperation between the longitudinal slide rail 207 and the longitudinal slide groove enables the blanking storage mechanism to be removed as a whole, thereby realizing the group transfer of the blades 4.

[0057] Furthermore, the conveying device includes a transport column 227, a blade grabbing mechanism, a transverse transport mechanism, and a vertical transport mechanism; the transverse transport mechanism includes a transverse transport rod 228, a transverse transport seat 230, a transverse rack and pinion transmission pair, and a translation motor 232; the transverse rack and pinion transmission pair includes a transverse transport gear 233 and a transverse transport rack 234; the vertical transport mechanism includes a vertical transport rod 235, a vertical rack and pinion transmission pair, and a lifting motor 237; the vertical rack and pinion transmission pair includes a vertical transport gear 238 and a vertical transport rack 239;

[0058] The lower end of the transport column 227 is fixed to the upper side of the workbench 204; one end of the transverse transport rod 228 is fixed to the upper end of the transport column 227; transverse sliding grooves 229 are transversely provided on both the front and rear sides of the transverse transport rod 228; the transverse transport seat 230 is sleeved on the transverse transport rod 228; a plurality of transverse pulleys 231 that move along the transverse sliding grooves 229 are rotatably installed in the transverse transport seat 230; the transverse transport rack 234 is transversely installed on the transverse transport rod 228; the translation motor 232 is installed on the transverse transport seat 230 and is electrically connected to the controller through the translation drive circuit; the transverse transport gear 233 is installed on the output shaft of the translation motor 232 and meshes with the transverse transport rack 234;

[0059] The vertical transport rod 235 slides vertically through the horizontal transport seat 230; a vertical sliding groove 236 is vertically arranged on the vertical transport rod 235; a plurality of vertical pulleys that move along the vertical sliding groove 236 are rotatably installed in the horizontal transport seat 230; the vertical transport rack 239 is vertically installed on the vertical transport rod 235; the lifting motor 237 is installed on the horizontal transport seat 230, and is electrically connected to the controller through the lifting drive circuit; the vertical transport gear 238 is installed on the output shaft of the lifting motor 237, and is engaged with the vertical transport rack 239; the blade grabbing mechanism is installed on the lower end of the vertical transport rod 235, for grabbing or releasing the blade 4.

[0060] The horizontal transport gear 233 is driven to rotate by the translation motor 232 under the control of the controller, driving the horizontal transport seat 230 to move horizontally along the horizontal transport rack 234, thereby driving the vertical transport unit and the blade grabbing mechanism to move horizontally, thereby realizing the horizontal transportation of the blade 4; the vertical transport gear 238 is driven to rotate by the lifting motor 237 under the control of the controller, so that the vertical transport rack 239 drives the vertical transport rod 235 to move up and down, thereby realizing the vertical transportation of the blade 4, and the lifting motor 237 adopts the existing self-locking motor. When the lifting motor 237 stops, the vertical transport rod 235 will stop moving vertically; the cooperation between the vertical pulley and the vertical sliding groove 236 and the cooperation between the horizontal pulley 231 and the horizontal sliding groove 229 are utilized to reduce the friction between the vertical transport rod 235 and the horizontal transport seat 230 and between the horizontal transport rod 228 and the horizontal transport seat 230, thereby improving the movement stability.

[0061] Furthermore, the blade grabbing mechanism includes a blade grabbing seat 240 and a second electromagnet 241; the blade grabbing seat 240 is longitudinally fixed on the lower end of the vertical transport rod 235; a distance measuring sensor 5 electrically connected to the controller is installed on one side edge of the blade grabbing seat 240; the second electromagnet 241 is installed on the upper side surface of the blade grabbing seat 240; and a second electric control switch electrically connected to the controller is connected in series on the power supply line of the second electromagnet 241.

[0062] The blade 4 is grasped by the second electromagnet 241 when it is energized, and the blade 4 is released when the second electromagnet 241 is de-energized; the distance sensor 5 is used to help the controller determine the distance between the blade grasping seat 240 and the blade 4, so that the controller can control the vertical transport mechanism to move up and down.

[0063] In the automatic grinding system for lawn mower blades provided by the present invention, the controller adopts the existing single-chip microcomputer control module; the display screen 7 adopts the existing display screen; the first electromagnet 109 and the second electromagnet 241 both adopt existing electromagnets; the first electric control switch and the second electric control switch both adopt existing electric control switches; the distance sensor 5 adopts the existing infrared distance sensor; the transverse motor 132, the longitudinal motor 128, the grinding wheel motor 142, the push motor 215 and the translation motor 232 all adopt existing stepper motors, and the transverse drive circuit, the longitudinal drive circuit, the grinding wheel drive circuit, the push drive circuit and the translation drive circuit and the lifting drive circuit adopt corresponding stepper motor drive circuits; the lifting motor 237 adopts the existing self-locking motor, and the lifting drive circuit adopts the corresponding self-locking motor drive circuit.

[0064] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be interpreted as limiting the present invention itself. Various changes in form and details may be made without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. An automatic lawn mower blade sharpening system, characterized by: It includes a control box (6), a workbench (204), a grinding table (104), a mobile grinding device and a conveying device; the mobile grinding device includes two grinding branches; A controller is provided in the control box (6); a key panel (8) electrically connected to the controller is installed on the control box (6); a workbench (204) is located on the right side of the grinding table (104); a blade model seat (111) is longitudinally installed on the grinding table (104) via a positioning frame (107); a first electromagnet (109) controlled by the controller is installed on the lower side of the blade model seat (111); two grinding branches are installed on the grinding table (104) for simultaneously grinding the left and right sides of the blade (4) on the blade model seat (111); A blanking and receiving mechanism for receiving unpolished blades (4) is detachably mounted on the workbench (204); a loading and pushing mechanism for receiving and pushing out unpolished blades (4) is mounted on the workbench (204); a conveying device is mounted on the workbench (204) and is used for loading the unpolished blades (4) pushed out by the loading and pushing mechanism onto the blade mold seat (111) and loading and unloading the polished blades (4) from the blade mold seat (111) to the blanking and receiving mechanism; the mobile polishing device, the conveying device, and the loading and pushing mechanism are all driven and controlled by a controller.

2. The automatic lawn mower blade sharpening system according to claim 1, characterized in that: A display screen (7) electrically connected to the controller is mounted on the control box (6).

3. The automatic lawn mower blade sharpening system according to claim 1, characterized in that: The grinding branch comprises a spray structure, a grinding mechanism and a position adjustment mechanism; the position adjustment mechanism is mounted on the grinding table (104); the grinding mechanism is mounted on the position adjustment mechanism and is used to grind the blade (4); the position adjustment mechanism is used to drive the grinding mechanism to move longitudinally and adjust the distance between the grinding mechanism and the blade mold seat (111); a water retaining enclosure is provided on the edge of the grinding table (104); the spray structure is mounted on the water retaining enclosure and is used to spray water on the blade mold seat (111).

4. The automatic lawn mower blade sharpening system according to claim 3, characterized in that: The position adjustment mechanism comprises a longitudinal drive unit, a transverse drive unit and a fine adjustment unit; the longitudinal drive unit is mounted on the grinding table (104); the transverse drive unit is mounted on the longitudinal drive unit, and the longitudinal drive unit drives the transverse drive unit to move longitudinally; the fine adjustment unit is mounted on the transverse drive unit, and the transverse drive unit drives the fine adjustment unit to move transversely; the grinding mechanism is mounted on the fine adjustment unit, and the fine adjustment unit fine-adjusts the position of the grinding mechanism; the longitudinal drive unit and the transverse drive unit are both driven and controlled by a controller.

5. The automatic lawn mower blade sharpening system according to claim 3, characterized in that: The grinding mechanism comprises an angle adjustment unit, a grinding wheel motor (142) and a grinding wheel (143); the angle adjustment unit is mounted on the fine-tuning unit; the grinding wheel (143) is rotatably mounted on the angle adjustment unit via a driving shaft, and the angle of the grinding wheel (143) is adjusted by the angle adjustment unit; the grinding wheel motor (142) is used to drive the driving shaft to rotate, and is electrically connected to a controller via a grinding wheel driving circuit.

6. The automatic lawn mower blade sharpening system according to claim 3, characterized in that: The spray structure comprises a spray positioning frame (112) and a spray water pipe (115); the spray positioning frame (112) is installed on the water retaining enclosure; the spray water pipe (115) is longitudinally fixed on the upper end of the spray positioning frame (112) for connecting with an external water pipe; and a plurality of nozzles (116) are arranged at intervals on the spray water pipe (115).

7. The automatic lawn mower blade sharpening system according to claim 1, characterized in that: The feeding and pushing mechanism comprises a storage frame (214), a pushing motor (215), a pushing rotating shaft (219), a pushing gear rack transmission pair, and a pushing plate (218); the storage frame (214) is fixed on a workbench (204); unpolished blades (4) are stacked horizontally in the storage frame (214); pushing holes are provided at the bottom of each storage frame (214); the pushing plate (218) is installed on the workbench (204) in a transversely movable manner, and is used to pass through two pushing holes and push the bottommost blade (4) horizontally out of the storage frame (214); the pushing motor (215) drives the pushing plate (218) to move transversely through the pushing gear rack transmission pair, and is electrically connected to a controller through a pushing drive circuit.

8. The automatic lawn mower blade sharpening system according to claim 1, characterized in that: The blanking storage mechanism comprises a storage base (206) and a plurality of limit bars (208); the storage base (206) is longitudinally slidably mounted on a workbench (204); storage adjustment seats (212) are slidably and adjustably mounted on the four edges of the storage base (206), and the storage adjustment seats (212) on the front and rear sides move longitudinally, while the storage adjustment seats (212) on the left and right sides move laterally; and each limit bar (208) is respectively fixed on each storage adjustment seat (212).

9. The automatic lawn mower blade sharpening system according to claim 1, characterized in that: The conveying device comprises a transport column (227), a blade grabbing mechanism, a transverse transport mechanism and a vertical transport mechanism; the transport column (227) is fixed on a workbench (204); the transverse transport mechanism is mounted on the upper end of the transport column (227); the vertical transport mechanism is mounted on the transverse transport mechanism, and is driven by the transverse transport mechanism to move transversely; the blade grabbing mechanism is mounted on the lower end of the vertical transport mechanism, and is used to grab or release a blade (4), and is driven by the vertical transport mechanism to move vertically; the blade grabbing mechanism, the transverse transport mechanism and the vertical transport mechanism are all driven and controlled by a controller.

10. The automatic lawn mower blade sharpening system according to claim 9, characterized in that: The blade grabbing mechanism comprises a blade grabbing seat (240) and a second electromagnet (241); the blade grabbing seat (240) is longitudinally mounted on the lower end of the vertical transport mechanism; a distance measuring sensor (5) electrically connected to a controller is mounted on the blade grabbing seat (240); the second electromagnet (241) is mounted on the upper side of the blade grabbing seat (240) and is driven and controlled by the controller.

Images