Automatic rapid grinding system for mower blade

Abstract

The invention discloses an automatic rapid grinding system for a mower blade. The automatic rapid grinding system comprises a control box, a grinding table, a movable grinding device, a circulating spraying device, two conveying devices and two workbenches. According to the automatic rapid grinding system for the mower blade, the feeding pushing mechanism, the discharging storage mechanism, the conveying devices and the movable grinding device are matched, so that the blade can be automatically ground, and the two conveying devices are used for feeding and discharging the movable grinding device in turn; the interval duration of two successive blade polishing processes is shortened, and the blade production efficiency can be effectively improved; the circular spraying device is used for spraying blades on the movable grinding device and the two conveying devices, the effects of assisting grinding and spraying dust removal can be achieved, water is recycled through the circular spraying device, and the resource utilization efficiency is improved.

Description

Technical Field

[0001] The invention relates to a blade sharpening system, in particular to an automatic rapid sharpening 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 realizing automation and intelligence in the production process is a key point that enterprises need to consider. Among the lawn mowers available on the market, the main working parts and easily worn parts are the blades of the lawn mowers. The blades are made of rigid materials. During the production process, the blades need to be loaded and unloaded. The existing method of loading and unloading blades is to manually place the blades on the grinding mechanism and then manually unload them. This manual and semi-automatic grinding method has low work efficiency and can no longer meet the production efficiency requirements of the product. Therefore, an automated rapid grinding system for lawn mower blades is proposed. Summary of the invention

[0003] Purpose of the invention: To provide an automatic rapid grinding system for lawn mower blades, which can perform rapid automatic grinding and improve production efficiency.

[0004] Technical solution: The automatic rapid grinding system for lawn mower blades provided by the present invention comprises a control box, a grinding table, a mobile grinding device, a circulating spray device, two conveying devices and two workbenches;

[0005] The two workbenches are respectively located on the left and right sides of the grinding table; the mobile grinding device is installed on the grinding table and is used to grind the blades; the unloading and receiving mechanisms for receiving ungrinded blades are detachably installed on the two workbenches; the loading and pushing mechanisms for receiving and pushing out ungrinded blades are installed on the two workbenches; transport columns are vertically fixed on the two workbenches; a transverse transport rod is connected and fixed between the two transport columns; two conveying devices are respectively installed on the left and right sides of the transverse transport rod, and are used to load the ungrinded blades pushed out by the loading and pushing mechanisms on the corresponding sides onto the mobile grinding device, and to load and unload the polished blades from the mobile grinding device to the unloading and receiving mechanisms on the corresponding sides;

[0006] The circulating spraying device is used for circulating spraying the blades on the mobile grinding device and the two conveying devices;

[0007] A controller is arranged in the control box; a key panel electrically connected to the controller is installed on the control box; the mobile grinding device, the circulating spraying device, the two conveying devices and the two feeding and pushing mechanisms are all driven and controlled by the controller.

[0008] Furthermore, the feeding 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.

[0009] Furthermore, the material unloading storage mechanism includes a storage base and multiple limit strips; 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 laterally; each limit strip is fixed on each storage adjustment seat.

[0010] Furthermore, the conveying device includes a blade grabbing mechanism, a transverse transport mechanism and a vertical transport mechanism; the blade grabbing mechanism includes a blade grabbing seat and a second electromagnet; the transverse transport mechanism is installed on the transverse transport rod; the vertical transport mechanism is installed on the transverse transport mechanism, and the vertical transport mechanism is driven by the transverse transport mechanism to move horizontally; 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; the transverse transport mechanism and the vertical transport mechanism are both driven and controlled by the controller.

[0011] Furthermore, the mobile grinding device includes a blade model seat and two grinding branches; each grinding branch includes a grinding mechanism, a position adjustment mechanism and an edge positioning structure;

[0012] The blade model seat is longitudinally installed on the grinding table through a positioning frame; a first electromagnet controlled by a controller is installed on the lower side of the blade model seat; an edge positioning structure is installed on the grinding table to support the edge of the blade on the blade model seat; a position adjustment mechanism is installed on the grinding table; a grinding mechanism is installed on the position adjustment mechanism, and the grinding mechanisms of the two grinding branches are respectively used to simultaneously grind the left and right sides of the blade on the blade model seat; 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.

[0013] 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 drive unit drives the transverse drive 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 laterally; 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.

[0014] 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 driving circuit.

[0015] Furthermore, it includes a circulating water tank, a circulating water pump, a filtering structure, a polishing spray structure and a dust removal spray structure; the dust removal spray structure includes two dust removal spray branches;

[0016] A water retaining enclosure is arranged on the edge of the grinding table; a grinding spray structure is installed on the water retaining enclosure, and is used for spraying water on the blades on the mobile grinding device; two dust removal spray branches are respectively installed on the two workbenches, and are respectively used for spraying and dust removal on the blades on the two conveying devices; a filtering structure is installed in the middle of the circulating water tank, and is used for filtering impurities, and dividing the space in the circulating water tank into a water inlet chamber and a water outlet chamber; a circulating water pump is installed on the circulating water tank, and is electrically connected to the controller through a water pump driving circuit; the water inlet of the circulating water pump is connected to the water outlet chamber of the circulating water tank; the grinding spray structure and the two dust removal spray branches are respectively connected to the water outlet of the circulating water pump through a water supply hose; a drain outlet connected to the water inlet chamber of the circulating water tank through a drain pipe is arranged on the grinding table.

[0017] Furthermore, the polishing spray structure includes two polishing spray branches; the polishing spray branches include a spray positioning frame and a polishing spray water pipe; the spray positioning frame is fixed on the water retaining enclosure; the polishing spray water pipe is fixed on the spray positioning frame and is connected to the water outlet of the circulating water pump through a water supply hose; a plurality of polishing nozzles are arranged at intervals on the polishing spray water pipe.

[0018] Furthermore, the dust removal spray branch includes a water collecting tank, a dust removal spray water pipe and two arc-shaped water pipes; the water collecting tank is installed on the workbench through two water tank supports; a return water port connected to the water inlet chamber of the circulating water tank through a return water hose is provided at the bottom of the water collecting tank; the dust removal spray water pipe is fixed on the two water tank supports and is connected to the water outlet of the circulating water pump through a water supply hose; the two arc-shaped water pipes are relatively fixed at both ends of the dust removal spray water pipe; and a plurality of dust removal nozzles are provided on the dust removal spray water pipe and the two arc-shaped water pipes.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: 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 mobile grinding device, and the two conveying devices are utilized to load and unload the mobile grinding device in turn, one conveying device loads the unground blade onto the mobile grinding device, and the mobile grinding device grinds the blade, and the conveying device unloads the polished blade, and at this time, the other conveying device loads the unground blade onto the mobile grinding device, so that the two conveying devices are loaded and unloaded in turn, and the interval time between the two blade grinding processes is reduced, which can effectively improve the production efficiency of the blade; the circulating spraying device is utilized to spray the mobile grinding device and the blades on the two conveying devices, which can help the grinding and spray dust removal, and the circulating spraying device circulates water to improve the resource utilization efficiency; the unloading and storing mechanism is utilized to be detachable, so that the unloading and storing mechanism can be directly disassembled after it is full, so that the blades can be moved in groups conveniently and the safety is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the present invention;

[0021] Figure 2 It is a schematic structural diagram of the grinding device of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the grinding mechanism of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the edge positioning mechanism of the present invention;

[0024] Figure 5 It is a top view of the feeding and pushing mechanism of the present invention;

[0025] Figure 6 It is a top view of the material blanking and storage mechanism of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the dust removal spray branch of the present invention;

[0027] Figure 8 is a top view of the filtering structure of the present invention;

[0028] Fig. 9 It is a schematic diagram of the circuit structure of the present invention;

[0029] In the figure: 104, grinding table; 105, drain outlet; 106, support foot; 107, positioning frame; 108, positioning locking bolt; 109, first electromagnet; 111, blade model seat; 112, spray positioning frame; 115, grinding spray water pipe; 116, grinding 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; 124, waterproof platform; 125, longitudinal guide rail; 128, longitudinal motor; 129, synchronous shaft; 130, transverse guide rail; 132, transverse motor; 133, fine-tuning seat; 134, transverse drive seat; 135, fine-tuning locking 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;

[0030] 204, workbench; 205, support leg; 206, storage base; 207, longitudinal slide rail; 208, limit bar; 209, hand screw 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; 221, water tank support; 222, water collecting tank; 223, water return port; 224, arc water pipe; 2 25. Dust removal spray water pipe; 226. Dust removal nozzle; 227. Transport column; 228. Horizontal transport rod; 229. Horizontal sliding groove; 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 groove; 237. Lifting motor; 238. Vertical transport gear; 239. Vertical transport rack; 240. Blade grabbing seat; 241. Electromagnet;

[0031] 301, circulating water tank; 302, filter chamber; 303, filter plate; 304, buckle convex strip; 305, circulating water pump; 307, drain pipe; 308, water delivery hose; 309, return water hose;

[0032] 4. Blade; 5. Distance sensor; 6. Control box; 7. Display screen; 8. Key panel. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] 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, and are only simplified descriptions for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0036] Embodiment 1:

[0037] like Figure 1-9 As shown, an automatic rapid grinding system for lawn mower blades provided by the present invention comprises: a control box 6, a grinding table 104, a mobile grinding device, a circulating spray device, two conveying devices and two workbenches 204;

[0038] Two workbenches 204 are respectively located on the left and right sides of the grinding 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 grinding table 104;

[0039] The mobile grinding device is mounted on the upper side of the grinding table 104 and is used for grinding the blade 4;

[0040] On both workbenches 204, a material unloading and receiving mechanism for receiving unpolished blades 4 is detachably mounted; on both workbenches 204, a material loading and pushing mechanism for receiving and pushing out unpolished blades 4 is mounted;

[0041] Transport columns 227 are vertically fixed on the two workbenches 204; a transverse transport rod 228 is connected and fixed to the upper ends of the two transport columns 227; two conveying devices are respectively installed on the left and right sides of the transverse transport rod 228, and are used to load the unground blades 4 pushed out by the loading and pushing mechanism on the corresponding side onto the mobile grinding device, and to load and unload the ground blades 4 from the mobile grinding device to the unloading and receiving mechanism on the corresponding side;

[0042] The circulating spraying device is used for circulating spraying the mobile grinding device and the blades 4 on the two conveying devices;

[0043] The control box 6 is installed on one of the transport columns 227; a controller is arranged inside the control box 6; a display screen 7 and a key panel 8 electrically connected to the controller are installed on the control box 6; the mobile grinding device, the circulating spraying device, the two conveying devices and the two feeding and pushing mechanisms are all driven and controlled by the controller.

[0044] By utilizing the cooperation between the loading and pushing mechanism, the unloading and storing mechanism, the conveying device and the mobile grinding device, the automatic grinding of the blade 4 can be realized, and the two conveying devices are used to load and unload the mobile grinding device in turn. One conveying device loads the unground blade 4 onto the mobile grinding device, and the mobile grinding device grinds the blade 4. The conveying device unloads the polished blade 4, and at this time, the other conveying device loads the unground blade 4 onto the mobile grinding device, so that the two conveying devices are loaded and unloaded in turn, and the interval time between the grinding processes of two blades 4 is reduced, which can effectively improve the production efficiency of the blade 4; the circulating spraying device is used to spray the mobile grinding device and the blades 4 on the two conveying devices, which can help grinding and spray dust removal, and the circulating spraying device circulates water to improve resource utilization efficiency; the detachable installation of the unloading and storing mechanism is used, so that the unloading and storing mechanism can be directly disassembled after it is full, which is convenient for moving the blades 4 in groups and improves safety.

[0045] 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 unpolished 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 to slide with the front and rear edges of the push plate 218; a push rack 220 is horizontally fixed on the upper side of the push plate 218; a push shaft 219 is rotatably installed longitudinally on the upper side of the workbench 204; a push gear 216 is installed on the push shaft 219 and meshes with the push rack 220; a push motor 215 is used to drive the push shaft 219 to rotate, and is electrically connected to the controller through a push drive circuit.

[0046] 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, so that the bottom blade 4 is pushed horizontally out of the storage frame 214 to facilitate the conveying device to grab the blade 4; the two guide strips 217 are used to slide and guide the pushing plate 218 to ensure that the pushing plate 218 can pass through the pushing hole.

[0047] Furthermore, the material unloading 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 slidably matched 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 arranged at the four edges of the upper side surface of the storage base 206; a storage adjustment seat 212 is slidably 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 laterally; 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.

[0048] Each hand-tightened bolt 209 is screwed according to the size of the blade 4, so that each storage adjustment seat 212 drives each limit bar 208 to move to adapt to the blade 4, thereby reducing the probability of the blade 4 sliding or bumping in the unloading storage mechanism. At the same time, the cooperation between the longitudinal slide rail 207 and the longitudinal slide groove enables the unloading storage mechanism to be removed as a whole, thereby realizing the group transfer of the blades 4.

[0049] Further, the conveying device includes a blade grabbing mechanism, a lateral transport mechanism and a vertical transport mechanism; the lateral transport mechanism includes a lateral transport seat 230, a lateral transport gear 233 and a translation motor 232; the vertical transport mechanism includes a vertical transport rod 235, a vertical gear rack transmission pair and a lifting motor 237; the vertical gear rack transmission pair includes a vertical transport gear 238 and a vertical transport rack 239; the blade grabbing mechanism includes a blade grabbing seat 240 and a second electromagnet 241;

[0050] A transverse sliding groove 229 is transversely arranged on both the front and rear side surfaces of the transverse transport rod 228; a transverse transport seat 230 is sleeved on the transverse transport rod 228; a plurality of transverse pulleys 231 that travel along the transverse sliding groove 229 are rotatably installed in the transverse transport seat 230; a transverse transport rack 234 is transversely arranged on the upper side surface of the transverse transport rod 228; a translation motor 232 is installed on the transverse transport seat 230, and is electrically connected to the controller through a translation drive circuit; a transverse transport gear 233 is installed on the output shaft of the translation motor 232, and is meshed with the transverse transport rack 234;

[0051] The vertical transport rod 235 vertically slides and penetrates 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 travel along the vertical sliding groove 236 are rotatably installed in the horizontal transport seat 230; a vertical transport rack 239 is vertically installed on the vertical transport rod 235; a lifting motor 237 is installed on the horizontal transport seat 230, and is electrically connected to the controller through a lifting drive circuit; a vertical transport gear 238 is installed on the output shaft of the lifting motor 237, and is meshed with the vertical transport rack 239;

[0052] 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 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.

[0053] The translation motor 232 is used to drive the lateral transport gear 233 to rotate under the control of the controller, driving the lateral transport seat 230 to move horizontally along the lateral transport rack 234, thereby driving the vertical transport unit and the blade grabbing seat 240 to move horizontally, thereby realizing the horizontal transportation of the blade 4; the lifting motor 237 is used to drive the vertical transport gear 238 to rotate 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 vertical movement; the cooperation between the vertical pulley and the vertical sliding groove 236 and the cooperation between the transverse pulley 231 and the transverse sliding groove 229 are used to reduce the friction between the vertical transport rod 235 and the transverse transport seat 230 and between the transverse transport rod 228 and the transverse transport seat 230, thereby improving the movement stability;

[0054] 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 measuring sensor 5 helps the controller to 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.

[0055] Further, the mobile grinding device includes a blade model seat 111, a positioning frame 107 and two grinding branches; each grinding branch includes a grinding mechanism, a position adjustment mechanism and an edge positioning structure; the edge positioning structure includes a bottom guide rail 117, a bottom moving seat 118, an edge positioning plate 119 and an edge adjustment bolt 122;

[0056] The 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 model seat 111 for mounting the blade 4 is installed on the longitudinal frame of the positioning frame 107 through a positioning locking bolt 108;

[0057] A first electromagnet 109 is installed on the lower side of the blade model seat 111; a positioning cone is provided in the middle of the upper side of the blade model seat 111; a positioning hole for inserting the positioning cone is provided in the middle of the blade 4;

[0058] The bottom guide rails 117 of the two edge positioning structures are respectively installed transversely on the right rear side and the left front side of the upper side of the grinding table 104; the bottom moving seat 118 is installed on the bottom guide rail 117 in a transverse sliding manner; the lower end of the edge positioning plate 119 is fixed on the bottom moving seat 118; an adjustment plate 121 is fixed on the bottom guide rail 117; the edge adjustment bolt 122 is threadedly screwed on the adjustment plate 121, and the end is rotatably installed on the edge positioning plate 119; a slope surface 120 for guiding the blade 4 to the blade model seat 111 is provided on the upper side of the edge positioning plate 119; a positioning locking nut 123 for pressing tightly on the adjustment plate 121 is threadedly screwed on the edge adjustment bolt 122;

[0059] 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.

[0060] The grinding mechanism of the two grinding branches is used to grind the two sides of the blade 4 at the same time, which can effectively improve the grinding efficiency of the blade 4, and can achieve one-time grinding in place, without the need to manually flip the blade 4, thereby improving safety; the first electromagnet 109 is energized to adsorb and position the blade 4; 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 to prevent displacement during grinding and reduce vibration; the longitudinal movement motor 128 is used to drive one of the longitudinal movement drive screws to rotate under the control of the controller, and the synchronous shaft 129 is driven by two sets of bevel gear transmission sub-drives. The other longitudinal drive screw is driven to rotate synchronously, driving the two longitudinal moving seats to move synchronously, thereby ensuring that the transverse drive unit can perform longitudinal translation; the transverse motor 132 is used to drive the transverse drive screw to rotate under the control of the controller, so that the transverse drive seat 134 can drive the fine-tuning unit to move horizontally, and can quickly retract after grinding, so as to facilitate the removal of the blade 4 and the installation of the next blade 4; the cooperation between the transverse drive seat 134, the fine-tuning seat 133 and the fine-tuning bolt 136 can be used to adjust the position of the grinding mechanism slightly according to the wear of the grinding wheel 143 of the grinding mechanism, without adjusting the feed amount of the transverse motor 132;

[0061] By utilizing 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 to prevent the blade 4 from rotating and ensure the grinding effect.

[0062] Further, the position adjustment mechanism includes a longitudinal drive unit, a transverse drive unit and a fine adjustment unit; the longitudinal drive unit includes a longitudinal motor 128, a synchronous shaft 129, two longitudinal guide rails 125 and two longitudinal drive screw rods; the transverse drive unit includes a transverse motor 132, a transverse guide rail 130 and a transverse drive screw rod; the fine adjustment unit includes a fine adjustment seat 133 and a fine adjustment bolt 136;

[0063] The two longitudinal guide rails 125 are longitudinally fixed on the upper side of the grinding table 104 through the waterproof platform 124; longitudinal moving seats are longitudinally slidably installed on the two longitudinal guide rails 125; two longitudinal driving screws are respectively rotatably installed longitudinally in the two longitudinal guide rails 125, and are respectively threaded and screwed through the corresponding longitudinal moving seats; the synchronous shaft 129 is rotatably installed horizontally on the two longitudinal guide rails 125, and the two ends are respectively connected to the two longitudinal driving screws through the bevel gear transmission pair; the longitudinal motor 128 is used to drive a longitudinal driving screw to rotate, and is electrically connected to the controller through the longitudinal driving circuit;

[0064] The two ends of the transverse guide rail 130 are respectively fixed on two longitudinal moving seats; a transverse driving seat 134 is installed on the transverse guide rail 130 in a transversely movable manner; the transverse driving screw is rotatably installed in the transverse guide rail 130, and the screw thread penetrates the transverse driving seat 134; the transverse motor 132 is used to drive the transverse driving screw to rotate, and is electrically connected to the controller through the transverse driving circuit;

[0065] The fine-tuning seat 133 is installed in a transverse sliding manner on the transverse guide rail 130; the fine-tuning seat 133 is provided with fine-tuning ear seats located on the left and right sides of the transverse driving seat 134 respectively; the fine-tuning bolt 136 is rotatably installed on the two fine-tuning ear seats, and is threadedly screwed through the transverse driving seat 134; the fine-tuning bolt 136 is threadedly screwed with a fine-tuning locking nut 135 for tightening on one of the fine-tuning ear seats.

[0066] The longitudinal movement motor 128 is used to drive one of the longitudinal movement drive screws to rotate under the control of the controller, and the synchronous shaft 129 drives the other longitudinal movement drive screw to rotate synchronously through two sets of bevel gear transmission pairs, thereby driving the two longitudinal moving seats 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 to rotate under the control of the controller, so that the transverse movement drive seat 134 can drive the fine-tuning unit to move horizontally, and can feed during grinding to complete the grinding of the blade 4, and quickly retract after the grinding is completed, so as 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 a small adjustment 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.

[0067] 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 rotatably 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.

[0068] By utilizing the cooperation among 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 the angle adjustment of the grinding wheel 143.

[0069] Furthermore, the circulating spray device includes a circulating water tank 301, a circulating water pump 305, a filtering structure, a polishing spray structure and a dust removal spray structure; the dust removal spray structure includes two dust removal spray branches; the filtering structure includes a filter chamber 302 and a plurality of filter plates 303; the filter chamber 302 is longitudinally fixed in the middle of the circulating water tank 301 in a partitioned manner, and the upper edge of the filter chamber 302 is higher than the upper edge of the circulating water tank 301; the filter chamber 302 divides the space in the circulating water tank 301 into Water inlet chamber and water outlet chamber; a plurality of filter holes are arranged on the left and right side walls of the filter chamber 302; a replacement window is arranged on the top of the filter chamber 302; a plurality of buckle convex strips 304 are arranged vertically at intervals on the front and rear side walls of the filter chamber 302; an insertion slot is formed between two adjacent buckle convex strips 304 on the same side wall; each insertion slot on the front side corresponds to each insertion slot on the rear side; each filter plate 303 is inserted into each corresponding group of insertion slots;

[0070] A water retaining enclosure is provided on the edge of the grinding table 104; a grinding spray structure is installed on the water retaining enclosure, and is used to spray water on the blade 4 on the mobile grinding device; two dust removal spray branches are respectively installed on the two workbenches 204, and are respectively used to spray and remove dust on the blades 4 on the two conveying devices;

[0071] The circulating water tank 301 is located below the polishing table 104; the circulating water pump 305 is installed on the circulating water tank 301 and is electrically connected to the controller through a water pump drive circuit; the water inlet of the circulating water pump 305 is connected to the water outlet chamber of the circulating water tank 301; the polishing spray structure and the two dust removal spray branches are respectively connected to the water outlet of the circulating water pump 305 through a water supply hose 308; a drain outlet 105 is provided on the polishing table 104; the drain outlet 105 is connected to the water inlet chamber of the circulating water tank 301 through a drain pipe 307.

[0072] The grinding spray structure is used to spray water when the mobile grinding device is grinding, which can play a role in cooling, lubricating and improving efficiency during the grinding process. The two dust removal spray branches spray and clean the blades on the two conveying devices respectively, so that the blades 4 are cleaned before entering the unloading storage mechanism; multiple filter plates 303 are used to filter in the filter bin 302, and water with iron cuttings enters the water inlet chamber through the drain pipe 307. It is filtered when passing through the filter bin 302 and multiple filter plates 303, so that the circulating water pump 305 can pump the clean water in the water outlet chamber into the grinding spray structure and the dust removal spray structure again, so as to realize circulating water use and reduce the waste of water resources; the buckle convex strips 304 are used to cooperate with the inner wall of the filter bin 302 to form multiple insertion slots, and the filter plates 303 are inserted and positioned for easy replacement.

[0073] Furthermore, the polishing spray structure includes two polishing spray branches; the polishing spray branches include a spray positioning frame 112 and a polishing spray water pipe 115; the spray positioning frames 112 of the two polishing spray branches are respectively fixed on the water retaining enclosures on the front and rear sides; the polishing spray water pipe 115 is longitudinally fixed on the upper end of the spray positioning frame 112, and one end is connected to the water outlet of the circulating water pump 305 through a water supply hose 308; a plurality of polishing nozzles 116 are arranged at intervals on one side of the polishing spray water pipe 115 facing the blade model seat 111.

[0074] Water is sprayed by using each grinding nozzle 116 on the grinding spray water pipe 115. The water is sprayed on the blade 4, which can play a role in cooling, lubricating and improving efficiency during the grinding process. At the same time, the water can bring down the metal debris produced by grinding. The water mixed with the metal debris flows to the grinding table 104 and enters the water inlet chamber of the circulating water tank 301 through the drain port 105 and the drain pipe 307, which can collect most of the sprayed water and reduce waste.

[0075] Furthermore, the dust removal spray branch includes a water collecting tank 222, a dust removal spray water pipe 225 and two arc-shaped water pipes 224; the water collecting tank 222 is installed on the workbench 204 through two water tank supports 221; a return water port 223 is arranged at the bottom of the water collecting tank 222, and the return water port 223 is connected to the water inlet chamber of the circulating water tank 301 through a return water hose 309; the two ends of the dust removal spray water pipe 225 are respectively fixed on the two water tank supports 221, and are connected to the water outlet of the circulating water pump 305 through a water supply hose 308; the two arc-shaped water pipes 224 are relatively fixed on the front and rear ends of the dust removal spray water pipe 225; the vertical transport rod 235 passes between the two arc-shaped water pipes 224 during the horizontal movement; a plurality of dust removal nozzles 226 are arranged on the dust removal spray water pipe 225 and the two arc-shaped water pipes 224.

[0076] Water is sprayed by the dust removal spray water pipe 225 and the dust removal nozzles 226 on the two arc-shaped water pipes 224. When the vertical transport rod 235 drives the blade 4 to move horizontally through the dust removal spray branch, the water sprayed by the dust removal nozzle 226 can rinse and clean the blade 4; the dripping water is collected by the water collecting tank 222, and the water enters the water inlet chamber of the circulating water tank 301 through the return water port 223 and the return water hose 309.

[0077] In the automatic rapid 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 the existing electromagnets; the first electric control switch and the second electric control switch both adopt the 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 the 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 lifting drive circuit adopt the corresponding stepper motor drive circuit; the lifting motor 237 adopts the existing self-locking motor, and the lifting drive circuit adopts the corresponding self-locking motor drive circuit; the circulating water pump 305 adopts the existing circulating water pump, and the water pump drive circuit adopts the corresponding circulating water pump drive circuit.

[0078] The automatic rapid grinding system for lawn mower blades provided by the present invention is installed and used by following the steps below:

[0079] Step 1: The controller controls the circulating water pump 305 to operate, so that the polishing spray structure and the dust removal spray mechanism circulate and spray water;

[0080] Under the control of the controller, the circulating water pump 305 pumps the water in the water outlet cavity of the circulating water tank 301 into each water delivery hose 308, so that each polishing nozzle 116 and each dust removal nozzle 226 spray water, and the falling water enters the water collecting tank 222 and the polishing table 104, and enters the water inlet cavity of the circulating water tank 301 through the drain pipe 307 and the return water hose 309. The water in the water inlet cavity is filtered by the filtering structure and enters the water outlet cavity, and then is pumped out by the circulating water pump 305;

[0081] Step 2: The feeding and pushing mechanism pushes out the blade and waits for the conveying mechanism to grab it;

[0082] The push motor 215 drives the push shaft 219 to rotate under the control of the controller, and the push shaft 219 drives the push plate 218 to move horizontally through the push gear rack transmission pair, so as to push the bottom blade 4 out of the storage frame 214 horizontally;

[0083] Step 3: The conveying device loads the unground blade 4 pushed out by the feeding and pushing mechanism on the corresponding side onto the mobile grinding device;

[0084] The controller controls the operation of the lifting motor 237 according to the data detected by the ranging sensor 5, and the vertical transport gear 238 rotates, so that the vertical transport rack 239 drives the vertical transport rod 235 to descend, and controls the second electromagnet 241 to be energized, so as to absorb and grab the blade 4 pushed out by the feeding and pushing mechanism, and then the vertical transport rod 235 rises, and the translation motor 232 drives the horizontal transport gear 233 to rotate under the control of the controller, and drives the horizontal transport seat 230 to move horizontally along the horizontal transport rack 234 until it reaches the position corresponding to the blade model seat 111, and the blade grabbing seat 240 descends to a certain height, and the second electromagnet 241 loses power, and the blade 4 falls onto the blade model seat 111, and the positioning cone is inserted into the positioning hole, and the first electromagnet 109 is energized to absorb and position the blade 4;

[0085] Step 4: The mobile grinding device grinds the blade 4 on the blade model seat 111; the lateral drive unit drives the grinding mechanism to move and feed horizontally. After the lateral movement and feeding have reached a certain depth, the longitudinal drive unit drives the lateral drive unit and the grinding mechanism to move and feed longitudinally. After the longitudinal movement and feeding are completed, the lateral drive unit quickly retreats back to its original position, and the longitudinal drive unit drives the lateral drive unit and the grinding mechanism to quickly retreat back to their original position.

[0086] The traverse motor 132 drives the traverse drive screw to rotate under the control of the controller, so that the traverse drive seat 134 can drive the fine adjustment unit to move horizontally, thereby driving the grinding mechanism to feed horizontally or retract quickly;

[0087] The longitudinal motor 128 drives one of the longitudinal drive screws to rotate under the control of the controller, and the synchronous shaft 129 drives the other longitudinal drive screw to rotate synchronously through two sets of bevel gear transmission pairs, driving the two longitudinal moving seats to move synchronously, thereby driving the transverse drive unit and the grinding mechanism to longitudinally feed or retract;

[0088] Step 5: The conveying device grabs the blade 4 on the blade model seat 111 and unloads it to the unloading storage mechanism on the corresponding side. At the same time, another conveying device grabs the unpolished blade 4 pushed out by the loading and pushing mechanism on the corresponding side and loads it onto the mobile grinding device.

[0089] The controller lift motor 237 operates to lower the blade grab seat 240 to a certain height, controls the first electromagnet 109 to lose power, and the second electromagnet 241 to be energized, so that the blade 4 is adsorbed onto the blade grab seat 240, and the lift motor 237 operates to lower and raise the blade grab seat 240, and the translation motor 232 operates to make the blade grab seat 240 reach the material unloading and storage mechanism on the corresponding side, and the second electromagnet 241 loses power, and the blade 4 falls into the material unloading and storage mechanism on the corresponding side;

[0090] Step 6, looping process 2 to process 5;

[0091] Step seven, loading the loading pushing mechanism according to the storage situation of the loading pushing mechanism; when the unloading storage mechanism is full, remove the unloading storage mechanism as a whole and replace it with an empty unloading storage mechanism.

[0092] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed 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 rapid sharpening system for lawn mower blades, characterized in that: It comprises a control box (6), a grinding table (104), a mobile grinding device, a circulating spraying device, two conveying devices and two workbenches (204); The two workbenches (204) are respectively located on the left and right sides of the grinding table (104); the mobile grinding device is installed on the grinding table (104) for grinding the blade (4); a material unloading and receiving mechanism for receiving ungrinded blades (4) is detachably installed on the two workbenches (204); a material loading and pushing mechanism for receiving and pushing out ungrinded blades (4) is installed on the two workbenches (204); a transport column (227) is vertically fixed on the two workbenches (204); a transverse transport rod (228) is connected and fixed between the two transport columns (227); two conveying devices are respectively installed on the left and right sides of the transverse transport rod (228), and are used to load the ungrinded blades (4) pushed out by the material loading and pushing mechanism on the corresponding side onto the mobile grinding device, and to load and unload the polished blades (4) from the mobile grinding device to the material unloading and receiving mechanism on the corresponding side; The circulating spraying device is used for circulating spraying the blades (4) on the mobile grinding device and the two conveying devices; A controller is arranged 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 circulating spraying device, the two conveying devices and the two feeding and pushing mechanisms are all driven and controlled by the controller.

2. The automatic rapid sharpening system for lawn mower blades 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 arranged 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 to push the bottommost blade (4) horizontally out of the storage frame (214); the pushing motor (215) drives the pushing plate (218) to move horizontally through the pushing gear rack transmission pair, and is electrically connected to a controller through a pushing driving circuit.

3. The automatic rapid sharpening system for lawn mower blades according to claim 1, characterized in that: The material unloading storage mechanism comprises a storage base (206) and a plurality of limit strips (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 strip (208) is respectively fixed on each storage adjustment seat (212).

4. The automatic rapid sharpening system for lawn mower blades according to claim 1, characterized in that: The conveying device comprises a blade grabbing mechanism, a transverse transport mechanism and a vertical transport mechanism; the blade grabbing mechanism comprises a blade grabbing seat (240) and a second electromagnet (241); the transverse transport mechanism is mounted on the transverse transport rod (228); the vertical transport mechanism is mounted on the transverse transport mechanism, and the transverse transport mechanism drives the vertical transport mechanism to move transversely; 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; the transverse transport mechanism and the vertical transport mechanism are both driven and controlled by the controller.

5. The automatic rapid sharpening system for lawn mower blades according to claim 1, characterized in that: The mobile grinding device comprises a blade model seat (111) and two grinding branches; each grinding branch comprises a grinding mechanism, a position adjustment mechanism and an edge positioning structure; The blade model seat (111) is longitudinally mounted on a grinding table (104) via a positioning frame (107); a first electromagnet (109) controlled by a controller is mounted on the lower side of the blade model seat (111); an edge positioning structure is mounted on the grinding table (104) and is used to support the edge of a blade (4) on the blade model seat (111); a position adjustment mechanism is mounted on the grinding table (104); a grinding mechanism is mounted on the position adjustment mechanism, and the grinding mechanisms of the two grinding branches are respectively used to simultaneously grind the left and right sides of the blade (4) on the blade model seat (111); and the position adjustment mechanism is used to drive the grinding mechanism to move longitudinally and to adjust the distance between the grinding mechanism and the blade model seat (111).

6. The automatic rapid sharpening system for lawn mower blades according to claim 5, 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 finely adjusts the position of the grinding mechanism; the longitudinal drive unit and the transverse drive unit are both driven and controlled by a controller.

7. The automatic rapid sharpening system for lawn mower blades according to claim 6, 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 adjustment unit; the grinding wheel (143) is rotationally 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.

8. The automatic rapid sharpening system for lawn mower blades according to claim 1, characterized in that: It comprises a circulating water tank (301), a circulating water pump (305), a filtering structure, a polishing spray structure and a dust removal spray structure; the dust removal spray structure comprises two dust removal spray branches; A water retaining enclosure is provided on the edge of the grinding table (104); a grinding spray structure is installed on the water retaining enclosure and is used to spray water on the blade (4) on the mobile grinding device; two dust removal spray branches are respectively installed on the two workbenches (204) and are respectively used to spray and remove dust from the blades (4) on the two conveying devices; The filtering structure is installed in the middle of the circulating water tank (301) for filtering impurities and dividing the space in the circulating water tank (301) into a water inlet chamber and a water outlet chamber; the circulating water pump (305) is installed on the circulating water tank (301) and is electrically connected to the controller via a water pump driving circuit; the water inlet of the circulating water pump (305) is connected to the water outlet chamber of the circulating water tank (301); the polishing spray structure and the two dust removal spray branches are respectively connected to the water outlet of the circulating water pump (305) via a water delivery hose (308); and a drain port (105) is provided on the polishing table (104) and is connected to the water inlet chamber of the circulating water tank (301) via a drain pipe (307).

9. The automatic rapid sharpening system for lawn mower blades according to claim 8, characterized in that: The polishing spray structure comprises two polishing spray branches; the polishing spray branches comprise a spray positioning frame (112) and a polishing spray water pipe (115); the spray positioning frame (112) is fixed on the water retaining enclosure; the polishing spray water pipe (115) is fixed on the spray positioning frame (112) and is connected to the water outlet of the circulating water pump (305) through a water delivery hose (308); and a plurality of polishing nozzles (116) are arranged at intervals on the polishing spray water pipe (115).

10. The automatic rapid sharpening system for lawn mower blades according to claim 8, characterized in that: The dust removal spray branch comprises a water collecting tank (222), a dust removal spray water pipe (225) and two arc-shaped water pipes (224); the water collecting tank (222) is installed on a workbench (204) via two water tank supports (221); a return water port (223) is provided at the bottom of the water collecting tank (222) and is connected to a water inlet chamber of a circulating water tank (301) via a return water hose (309); the dust removal spray water pipe (225) is fixed on the two water tank supports (221) and is connected to a water outlet of a circulating water pump (305) via a water delivery hose (308); the two arc-shaped water pipes (224) are relatively fixed on the two ends of the dust removal spray water pipe (225); and a plurality of dust removal nozzles (226) are provided on the dust removal spray water pipe (225) and the two arc-shaped water pipes (224).

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