A sharpening machine

Abstract

The present application relates to a sharpening machine, which comprises a frame, a grinding mechanism for grinding a material rod, and at least one set of feeding mechanisms for conveying the material rod to the grinding mechanism, the feeding mechanism comprises a base mounted on the frame, and a feeding assembly and a positioning assembly connected to the base, the positioning assembly comprises a positioning frame connected to the base, a push rod slidably connected to the positioning frame, and a power member arranged on the positioning frame, the positioning frame is provided with a horizontally extending material trough, and the push rod is slidably arranged in the material trough; the feeding assembly comprises a feeding frame slidably connected to the base, a material bin arranged on the feeding frame, and a driving member mounted on the base, a material channel is provided at the bottom of the material bin, and the material rod can be moved to the material trough through the material channel under the action of the driving member; the grinding mechanism comprises a grinding wheel, a rotating member for driving the grinding wheel to rotate, and a push assembly for driving the grinding wheel to feed to each feeding mechanism. The present application has the effect of high processing efficiency.

Description

Technical Field

[0001] The present application relates to the field of grinding equipment, and in particular to a sharpening machine. Background Art

[0002] A drill bit is a tool installed on a drilling machine or drilling rig, used to cut holes on the surface of a workpiece or rock. A drill bit is generally made of a rod that is ground and cut. During processing, a sharpening machine is used to sharpen one end of the rod to form a sharp tool head.

[0003] When a sharpening machine in the related art is used to grind a material rod, a worker is usually required to manually place the material rods to be processed one by one to the processing position, resulting in low processing efficiency and requiring improvement. Summary of the invention

[0004] In order to improve processing efficiency, the present application provides a sharpening machine.

[0005] The present application provides a sharpening machine adopting the following technical solution:

[0006] The cam is an angularly arranged camshaft which is arranged on the camshaft support and has a rotation axis which is adapted to move the tool holder towards the centre of the camshaft. The camshaft is arranged on the camshaft support and has a rotation axis which is adapted to move the tool holder towards the centre of the camshaft.

[0007] By adopting the above technical solution, when processing material rods, multiple material rods are first placed in the material bin synchronously, among which the material rods at the bottom will fall to the material channel under the action of gravity, and then the material bin is pushed toward the material trough by the driving member, so that the material rods in the material channel are moved into the material trough, and then the driving member is used to drive the material bin to return to the initial position; and then the power member is used to drive the push rod to move toward the grinding mechanism, so as to push the material rods in the material trough toward the grinding wheel. After that, the rotating member is started to make the grinding wheel rotate at high speed, and then the grinding wheel is driven to move toward the material rod by the pushing assembly, so as to mill the end of the material rod to form a tip. When there are multiple groups of feeding mechanisms, after the material rods moved to the grinding mechanism by one group of feeding mechanisms are ground, the pushing assembly can also move the grinding mechanism to another group of grinding mechanisms, so as to process the material rods pushed to the grinding mechanism by the other group of feeding mechanisms. After processing, the drive is started again to push other material rods in the hopper into the trough one by one, and this process is repeated to achieve continuous processing of multiple material rods, saving workers' time for manual loading, achieving high processing efficiency and good finished product quality.

[0008] Optionally, the feeding mechanism also includes a fixed component located between the positioning frame and the grinding mechanism, the fixed component includes a fixed plate arranged on the frame, a driving wheel and a driven wheel rotatably connected to the fixed plate, a fixed motor installed on the fixed plate for driving the driving wheel and / or the driven wheel to rotate, and a pressure piece connected to the fixed plate, the pressure piece includes a pressure plate hinged to the fixed plate, a pressure wheel rotatably arranged on the pressure plate, and an elastic piece for driving the pressure wheel to abut against the driving wheel and the driven wheel, and a discharge hole for the feeding rod to pass through the material trough is enclosed between the driving wheel, the driven wheel and the pressure wheel.

[0009] By adopting the above technical solution, after the material rod passes through the material outlet hole along the material slot, the fixed motor is started to drive the driving wheel and / or the driven wheel to rotate, thereby driving the material rod to rotate circumferentially, so as to increase the contact area between the material rod and the grinding wheel, so that the grinding wheel can grind the entire circumferential side wall of the end of the material rod, thereby improving the grinding quality. The pressure wheel abuts against the upper side of the material rod under the action of the elastic member, which can effectively prevent the material rod from moving up when rotating with the driving wheel and the driven wheel, thereby improving the stability of the material rod during grinding.

[0010] Optionally, a lifting cylinder with a piston rod facing upward is also installed on the fixed plate, and the piston rod of the lifting cylinder abuts directly below the free end of the pressure plate.

[0011] By adopting the above technical solution, after the grinding of the material rod is completed, the piston rod of the lifting cylinder is extended to drive the free end of the pressing plate to move upward, so that the pressing wheel is separated from the material rod. At this time, the material rod is no longer pressed by the pressing wheel, which is convenient for unloading.

[0012] Optionally, the material bin includes two material plates arranged opposite to each other and an extension plate and a guide plate fixed on the adjacent side of the two material plates, the extension plate is located on the side of the guide plate close to the material trough, at least one adjusting screw is threadedly connected to the extension plate, a baffle is commonly fixed to the end of each adjusting screw, and the material channel is formed by the material plates, the guide plates and the baffle.

[0013] By adopting the above technical solution, the material rod falls through the gap between the two material plates and moves toward the material channel under the guidance of the guide plate. When the adjusting screw is rotated, the control baffle does not rotate with the adjusting screw. Since the extension plate is fixedly arranged on the material plate, the baffle will move horizontally toward or away from the guide plate under the drive of the adjusting screw, thereby reducing or increasing the width of the material channel to adapt to the processing of material rods with different diameters.

[0014] Optionally, the material unloading rack includes a vertical plate slidably connected to the base and a support plate fixed on the upper side of the vertical plate, the side of the support plate is provided with a horizontally extending sliding groove, two sliding blocks are slidably arranged in the sliding groove, and the guide plates are respectively provided with sliding bolts threadedly connected to the sliding blocks, and the sliding bolts abut against the bottom wall of the sliding groove.

[0015] By adopting the above technical solution, when the sliding bolt is tightened, the sliding bolt will press against the bottom wall of the sliding groove, making it difficult for the sliding block to move horizontally along the sliding groove, and the positions of the guide plate and the material plate are fixed. After loosening the sliding bolt, the sliding block is no longer pressed by the sliding bolt and can move along the sliding groove, thereby changing the distance between the two material plates to adapt to the processing of material bars of different lengths, which is highly practical.

[0016] Optionally, the base is connected to a horizontally distributed first induction switch and a second induction switch, the first induction switch is located on a side of the second induction switch away from the material trough, and a metal block that can be detected by the first induction switch or the second induction switch is provided at the bottom of the vertical plate.

[0017] By adopting the above technical solution, when the driving member works to drive the hopper to move horizontally, the support plate, the vertical plate and the metal block will move horizontally accordingly. When the first induction switch detects the presence of the metal block, it means that the hopper has not moved above the trough, and the power member can be activated to push the material rod in the trough; when the second induction switch detects the presence of the metal block, it means that the hopper has moved above the trough, and the driving member can be activated to push the material rod into the trough. The operator can associate the driving member and the power member with the first induction switch and the second induction switch by setting the program, so that the driving member and the power member in the feeding mechanism can operate in an orderly manner.

[0018] Optionally, the positioning frame includes a connecting plate and a positioning plate arranged on the upper side of the connecting plate, the material trough is opened on the positioning plate, and a connecting hole extending in a vertical direction is opened on the side of the connecting plate, and a connecting bolt threadedly connected to the base is passed through the connecting hole.

[0019] By adopting the above technical solution, when assembling the positioning frame, the connecting bolt is passed through the connecting hole and then threadedly connected to the base, thereby realizing the installation and fixation of the positioning frame and the base, and the operation is simple. The connecting hole extends in the vertical direction, so that the connecting bolt can pass through different positions of the connecting hole to change the height of the positioning plate and the distance between the positioning plate and the silo, thereby adapting to the movement of material rods of different diameters from the material channel to the material trough.

[0020] Optionally, the positioning frame also includes a mounting frame arranged on one side of the connecting plate, and the power component includes a power cylinder arranged on the mounting frame, a power rod rotatably connected to the power cylinder piston rod, and a transition block threadedly connected to the power rod, the piston rod of the power cylinder is arranged horizontally toward the power rod, and the push rod is connected to the transition block.

[0021] By adopting the above technical solution, the push rod is driven by the power cylinder to move horizontally, which has a high degree of automation, labor saving and convenience. The transition block is connected to the power rod by threads, so that the distance between the transition block and the power rod is adjustable, and the length range that the push rod can cover in the horizontal direction is variable, which is highly practical.

[0022] Optionally, the bottom wall of the trough is in a "V" shape.

[0023] By adopting the above technical solution, the contact area between the side wall of the material trough and the material rod is large, and the stability of the material rod when being pushed by the push rod is high.

[0024] Optionally, the frame is provided with an inclined and extending material collection platform, which is located between the feeding mechanism and the grinding mechanism and is used to collect the material rods after grinding. The pushing assembly is detachably provided with a protective plate for preventing debris from splashing.

[0025] By adopting the above technical solution, the material rods after being processed by the grinding wheel can fall along the material collection table, which is convenient for centralized material collection. The protective plate can prevent the debris generated by the grinding wheel when grinding the material rods from splashing around, thereby improving the safety performance of the grinding wheel when processing the material rods.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. When processing material bars, first put multiple material bars into the material bin, then use the driving part to move the single material bars into the material trough one by one, and then use the power part to drive the push rod to push the material bar to the grinding mechanism, then start the rotating part to make the grinding wheel rotate at high speed, and the pushing assembly drives the grinding wheel to repeatedly feed the material bar to grind the end of the material bar, with high automation and processing efficiency;

[0028] 2. When the driving wheel and / or the driven wheel rotate, they can drive the material rod abutting on the upper side thereof to rotate synchronously, so that the end and the surrounding of the material rod can be cut by the grinding wheel; the elastic member can drive the pressing wheel to abut on the top of the material rod to improve the stability of the material rod during grinding; the lifting cylinder can drive the free end of the pressing plate to move upward to facilitate unloading;

[0029] 3. The material channel is formed by the material plate, the guide plate and the baffle plate, and the distance between the baffle plate and the guide plate is adjustable, and the distance between the two material plates is also adjustable, so that the material bin can be suitable for storing material rods of different lengths and diameters, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0031] Figure 2 It is a structural schematic diagram of the feeding mechanism in the embodiment of the present application.

[0032] Figure 3 It is a schematic diagram of the structure of the base and the positioning assembly in the embodiment of the present application.

[0033] Figure 4 It is a structural schematic diagram of the base and the discharge assembly in the embodiment of the present application.

[0034] Figure 5 It is a schematic diagram of the structure of the silo in the embodiment of the present application.

[0035] Figure 6 It is a schematic diagram of the structure of the fixing component in the embodiment of the present application.

[0036] Figure 7 It is a structural schematic diagram of the grinding mechanism in the embodiment of the present application.

[0037] Description of reference numerals:

[0038] 1. Frame; 11. Material collection platform; 111. Material collection opening;

[0039] 2. Grinding mechanism; 21. Grinding wheel; 22. Rotating member; 221. Rotating motor; 23. Pushing assembly; 231. First base; 232. First pushing member; 233. Second base; 234. Second pushing member; 235. Third base; 236. Third pushing member; 237. Servo motor; 238. Screw rod; 24. Shield; 25. Protective plate;

[0040] 3. Feeding mechanism;

[0041] 31. base; 311. first bottom plate; 3111. first bolt; 3112. first through hole; 312. second bottom plate; 3121. second bolt; 3122. second through hole; 313. first vertical plate; 314. second vertical plate; 3141. through hole; 3142. locking bolt; 315. horizontal frame; 3151. guide rail; 3152. first induction switch; 3153. second induction switch;

[0042] 32. Material discharge assembly; 321. Material discharge rack; 3211. Vertical plate; 3212. Support plate; 3213. Metal block; 3214. First vertical block; 3215. Second vertical block; 3216. Moving hole; 3217. Moving bolt; 3218. Sliding groove; 3219. Sliding block; 322. Material bin; 3221. Material plate; 3222. Extension plate; 3223. Guide plate; 3224. Guide slope; 323. Driving member; 324. Sliding bolt; 325. Adjusting screw; 326. Baffle; 327. Material channel;

[0043] 33. Positioning assembly; 331. Positioning frame; 3311. Connecting plate; 3312. Mounting frame; 3313. Positioning plate; 3314. Connecting hole; 3315. Connecting bolt; 332. Push rod; 333. Power piece; 3331. Power cylinder; 3332. Power rod; 3333. Transition block; 3334. Transition bolt;

[0044] 34. Fixed assembly; 341. Fixed plate; 342. Driving wheel; 343. Driven wheel; 344. Fixed motor; 345. Pressing member; 3451. Pressing plate; 3452. Pressing wheel; 346. Rotating shaft; 35. Material trough; 36. Discharging hole; 37. Lifting cylinder. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1-7 This application is described in further detail.

[0046] The present application embodiment discloses a sharpening machine. Figure 1 The sharpening machine includes a frame 1, a grinding mechanism 2 for grinding material rods, and two sets of feeding mechanisms 3 for conveying the material rods to the grinding mechanism 2. The grinding mechanism 2 and the feeding mechanism 3 are both installed on the frame 1, and the structures of the two sets of feeding mechanisms 3 are exactly the same.

[0047] Reference Figure 2 , Figure 3The feeding mechanism 3 includes a base 31, a discharge assembly 32, a positioning assembly 33 and a fixing assembly 34. The base 31 includes a first bottom plate 311 connected to the frame 1 by a first bolt 3111, a second bottom plate 312 connected above the first bottom plate 311 by a second bolt 3121, a first vertical plate 313 fixed to the upper side of the second bottom plate 312, a second vertical plate 314 connected to one side of the first vertical plate 313, and a cross frame 315 fixed to the upper side of the second vertical plate 314. The first bottom plate 311 is provided with four first through holes 3112 for the first bolts 3111 to pass through respectively, and the second bottom plate 312 is provided with four second through holes 3122 for the second bolts 3121 to pass through respectively. The first through holes 3112 and the second through holes 3122 extend in different directions, so that the position of the base 31 can be adjusted in different directions relative to the frame 1.

[0048] Reference Figure 2 , Figure 4 The second vertical plate 314 is provided with two through holes 3141 extending in the vertical direction, and each through hole 3141 is provided with a locking bolt 3142 threadedly connected to the first vertical plate 313, so that the height of the second vertical plate 314 and the horizontal frame 315 can be adjusted.

[0049] Reference Figure 2 , Figure 3 The positioning assembly 33 includes a positioning frame 331, a push rod 332 slidably connected to the positioning frame 331, and a power member 333 arranged on the positioning frame 331. The positioning frame 331 includes a connecting plate 3311, a mounting frame 3312 fixed on the upper side of the connecting plate 3311, and a positioning plate 3313 fixed on the top of the side wall of the mounting frame 3312. The side of the connecting plate 3311 is provided with a connecting hole 3314 extending in the vertical direction, and a connecting bolt 3315 threadedly connected to the cross frame 315 is penetrated in the connecting hole 3314. The positioning frame 331 is detachably connected to the base 31 through the connecting bolt 3315, and the disassembly and assembly are convenient; and the height of the positioning frame 331 can be adjusted by changing the penetration height of the connecting bolt 3315, which is highly practical.

[0050] Reference Figure 3The power member 333 includes a power cylinder 3331 disposed on the mounting frame 3312, a power rod 3332 rotatably connected to the piston rod of the power cylinder 3331, and a transition block 3333 threadedly connected to the power rod 3332. The transition block 3333 is provided with a transition bolt 3334 threadedly connected to the push rod 332. The piston rod of the power cylinder 3331 is horizontally arranged toward the power rod 3332. The upper end surface of the positioning plate 3313 is provided with a horizontally extending material trough 35. The bottom wall of the material trough 35 is V-shaped and extends toward the side close to the grinding mechanism 2. The push rod 332 is slidably arranged in the material trough 35. When the piston rod of the power cylinder 3331 is extended and retracted, the power rod 3332 will push the transition block 3333 and the push rod 332 to move horizontally along the extension direction of the material trough 35, thereby pushing the material rod in the material trough 35 toward the grinding mechanism 2.

[0051] Reference Figure 2 , Figure 4 The material discharging assembly 32 includes a material discharging rack 321, a material bin 322 mounted on the material discharging rack 321, and a driving member 323 mounted on the horizontal frame 315. The material bin 322 is located between the positioning frame 331 and the grinding mechanism 2. The material discharging rack 321 includes a vertical plate 3211, a support plate 3212 fixed on the upper side of the vertical plate 3211, and a metal block 3213 fixed on the bottom of the vertical plate 3211. The driving member 323 uses a driving cylinder connected to the metal block 3213 by a piston rod. The piston rod of the driving cylinder is horizontally arranged toward the metal block 3213, and is used to push the material discharging rack 321 horizontally. In order to improve the stability of the movement of the material discharging rack 321, two guide rails 3151 whose top ends are slidably connected to the grooves at the bottom of the metal block 3213 are also arranged on the horizontal frame 315, so that the material discharging rack 321 can only move along the telescopic direction of the piston rod of the driving cylinder without deviation.

[0052] Reference Figure 4In order to detect the position of the material placing rack 321, a first induction switch 3152 and a second induction switch 3153 are installed on the horizontal frame 315, and the first induction switch 3152 and the second induction switch 3153 are both photoelectric switches. The first induction switch 3152 is located on the side of the second induction switch 3153 away from the material trough 35. When assembling the sharpening machine, the induction distance between the first induction switch 3152 and the second induction switch 3153 is set, and the first induction switch 3152 and the second induction switch 3153 are electrically connected to the driving member 323 and the power member 333. When the metal block 3213 moves to align with the first induction switch 3152, the first induction switch 3152 can detect the existence of the metal block 3213 and extend the piston rod of the driving member 323 and shorten the piston rod of the power member 333; when the metal block 3213 moves to align with the second induction switch 3153, the second induction switch 3153 can detect the existence of the metal block 3213 and shorten the piston rod of the driving member 323 and extend the piston rod of the power member 333.

[0053] Reference Figure 4 The vertical plate 3211 includes a first vertical block 3214 fixed above the metal block 3213 and a second vertical block 3215 fixed below the support plate 3212. A movable hole 3216 extending in the vertical direction is opened on the side of the first vertical block 3214. A movable bolt 3217 threadedly connected to the second vertical block 3215 is passed through the movable hole 3216, so that the length of the vertical plate 3211 is adjustable in the vertical direction and the height of the support plate 3212 is variable.

[0054] Reference Figure 4 , Figure 5 The material bin 322 includes two material plates 3221 relatively arranged on the upper side of the support plate 3212, and an extension plate 3222 and a guide plate 3223 fixed on the two material plates 3221 close to each other, wherein the extension plate 3222 is located on the side of the guide plate 3223 close to the material trough 35, and there is a gap between the guide plate 3223 and the extension plate 3222, so that the material rod can be put into the material bin 322 from the gap between the two material plates 3221.

[0055] Reference Figure 4 , Figure 5The side of the support plate 3212 is provided with a sliding groove 3218 extending in the horizontal direction, and two sliding blocks 3219 are slidably arranged in the sliding groove 3218. Specifically, the shape of the sliding block 3219 and the sliding groove 3218 can be a truncated cone or a prism with a small end at the upper end, an "inverted T" shape, etc., and the "inverted T" shape is adopted in this embodiment. The two guide plates 3223 are respectively penetrated with sliding bolts 324 threadedly connected with the sliding block 3219, and the bottom of the sliding bolt 324 abuts against the bottom wall of the sliding groove 3218. After loosening the sliding bolt 324, the distance between the two material plates 3221 can be adjusted, so that the material bin 322 can be suitable for storing material rods of different lengths.

[0056] Reference Figure 4 , Figure 5 , a plurality of sliding bolts 325 are threadedly connected to the two extension plates 3222, and a baffle 326 is fixed to the ends of the sliding bolts 325 connected to the same extension plate 3222. The baffle 326 is located between the guide plate 3223 and the extension plate 3222, and the end surfaces of the two material plates 3221 and the end surfaces of the guide plate 3223 and the baffle 326 are surrounded to form a material channel 327, and the material channel 327 can be used for a single material rod to fall into. When the sliding bolts 325 are rotated synchronously, the baffle 326 can move toward or away from the side of the extension plate 3222, thereby changing the width of the material channel 327 so that material rods of different diameters can fall into.

[0057] Reference Figure 4 , Figure 5 When the driving member 323 works to push the material rack 321 toward the side close to the material trough 35, the material bin 322 will move toward the material trough 35 synchronously, so that the material rods in the material channel 327 move into the material channel 35; when the driving member 323 drives the material rack 321 and the material bin 322 to move away from the material trough 35, the material bin 322 can push it and the material rods back to avoid too many material rods piled up on the material trough 35, and this reciprocating process is repeated to realize the loading of material rods one by one. In order to facilitate the material rods in the material bin 322 to fall into the material channel 327, a guide slope 3224 is provided at one end of the guide plate 3223 close to the baffle 326, and the material rods can roll down to the material channel 327 through the guide slope 3224.

[0058] Reference Figure 6The fixed assembly 34 includes a fixed plate 341 installed on the frame 1, a driving wheel 342 and a driven wheel 343 rotatably connected to the fixed plate 341, a fixed motor 344 arranged on the fixed plate 341, and a pressing member 345 hinged on the fixed plate 341. The output shaft of the fixed motor 344 can be fixedly connected to the driving wheel 342 to drive the driving wheel 342 to rotate; it can also be fixedly connected to the driven wheel 343 to drive the driven wheel 343 to rotate; it can also be fixedly connected to one of the driving wheel 342 or the driven wheel 343, and then a transmission belt is connected to the outer side of the driving wheel 342 and the driven wheel 343 to drive the driving wheel 342 and the driven wheel 343 to rotate synchronously through a power element. This embodiment adopts the last one.

[0059] Reference Figure 6 The pressing member 345 includes a pressing plate 3451 hinged to the fixed plate 341 through a rotating shaft 346, a pressing wheel 3452 rotatably connected to the bottom of the pressing plate 3451, and an elastic member used to drive the pressing wheel 3452 to abut against the upper side of the driving wheel 342 and the driven wheel 343. The elastic member in this embodiment is a torsion spring connected to the outside of the rotating shaft 346, one end of the torsion spring is fixed to the pressing plate 3451, and the other end is fixed to the circumferential side wall of the rotating shaft 346. When the pressing wheel 3452 abuts against the upper side of the driving wheel 342 and the driven wheel 343, a discharge hole 36 is formed between the driving wheel 342, the driven wheel 343 and the pressing wheel 3452, and the discharge hole 36 is aligned with the material trough 35 adjacent thereto, and the material rod can pass through the discharge hole 36 through the material trough 35. The material rod passing through the discharge hole 36 can rotate with the driving wheel 342 and the driven wheel 343, so that the grinding mechanism 2 can act on the circumferential side wall of the end of the material rod.

[0060] Reference Figure 6 A lifting cylinder 37 is installed on the fixed plate 341, and the piston rod of the lifting cylinder 37 faces upward and abuts against the bottom of the free end of the pressing plate 3451. When the piston rod of the lifting cylinder 37 is extended, the pressing plate 3451 will drive the pressing wheel 3452 to move up and separate from the material rod, so as to facilitate unloading.

[0061] Reference Figure 7 The grinding mechanism 2 includes a grinding wheel 21, a rotating member 22 for driving the grinding wheel 21 to rotate, and a push assembly 23 for driving the grinding wheel 21 to feed the two groups of feeding mechanisms 3 in sequence. The push assembly 23 includes a first base 231 slidably disposed on the frame 1, a first push member 232 for driving the first base 231 to move horizontally, a second base 233 slidably disposed on the first base 231, a second push member 234 for driving the second base 233 to move horizontally, a third base 235 slidably disposed on the second base 233, and a third push member 236 for driving the third base 235 to move horizontally.

[0062] Reference Figure 7 The first pusher 232, the second pusher 234 and the third pusher 236 all include a servo motor 237 and a screw rod 238 fixedly connected to the output shaft of the servo motor 237, wherein the screw rod 238 in the first pusher 232 is threadedly connected to the first base 231, and the length direction of the screw rod 238 is parallel to the distribution direction of the two groups of feeding mechanisms 3, so that the first base 231 can move horizontally in a direction parallel to the distribution direction of the two groups of feeding mechanisms 3. The screw rod 238 in the second pusher 234 is threadedly connected to the second base 233, and the length direction of the screw rod 238 is perpendicular to the distribution direction of the two groups of feeding mechanisms 3, so that the second base 233 can move horizontally in a direction perpendicular to the distribution direction of the two groups of feeding mechanisms 3. The screw rod 238 in the third pusher 236 is threadedly connected to the third base 235, and the length direction of the screw rod 238 is inclined to the distribution direction of the two groups of feeding mechanisms 3, so that the third base 235 can be pushed obliquely.

[0063] Reference Figure 7 The grinding wheel 21 is rotatably arranged on the third base 235, and the rotating member 22 includes a rotating motor 221 arranged on the third base 235, a first rotating wheel connected to the output shaft of the rotating motor 221, a second rotating wheel connected to the linkage shaft fixed in the middle of the grinding wheel 21, and a transmission belt respectively sleeved on the outside of the first rotating wheel and the second rotating wheel at both ends. When the rotating motor 221 is working, it can drive the grinding wheel 21 to rotate at a high speed through the first rotating wheel, the transmission belt and the second rotating wheel, so that the grinding wheel 21 grinds the material rod. In order to improve the safety of the rotating member 22 when working, a shield 24 is arranged on the outside of the first rotating wheel, the second rotating wheel and the transmission belt, and the shield 24 can be arranged on the third base 235.

[0064] Reference Figure 1 A tilted and extended material collection platform 11 is fixed on the frame 1, and a material collection port 111 for receiving material rods is provided on the upper end surface of the material collection platform 11, and the material collection port 111 is located below the discharge holes 36 in the two sets of feeding mechanisms 3. After the material rods are ground, the power cylinder 3331 is used to push the material rods into the material collection platform 11 so as to collect the processed material rods in batches. In other embodiments, the discharge of the material rods can also be achieved by an air blowing pipe provided on the frame 1 or the fixed plate 341, and the air outlet of the air blowing pipe is located on the side of the discharge hole 36 away from the material collection platform 11 and facing the material rods, so as to blow the processed material rods into the material collection platform 11.

[0065] Reference Figure 7 In order to prevent the debris from splashing when the grinding wheel 21 processes the material rod, a protective plate 25 is fixed to the second base 233 by bolts. The protective plate 25 is located on one side of the grinding wheel 21 and the end surface close to the feeding mechanism 3 is a concave arc surface, which can effectively reduce the splash distance of the debris and reduce safety hazards.

[0066] The implementation principle of a sharpening machine in an embodiment of the present application is as follows: when processing material rods, multiple material rods are first placed in a material bin 322, and the material rods at the bottom can fall into the material channel 327 along the guide slope 3224, and then the driving member 323 is started to push the material rack 321 and the material bin 322 to the side close to the material trough 35, so that the material rods in the material channel 327 fall into the material trough 35. At this time, the second induction switch 3153 detects the presence of the metal block 3213, and shortens the piston rod of the driving member 323, and then extends the piston rod of the power cylinder 3331, and the material bin 322 pushes the remaining material rods back, and the push rod 332 pushes the ends of the material rods in the material trough 35 out of the discharge hole 36. Then, the fixed motor 344 is started to drive the driving wheel 342 and the driven wheel 343 to rotate, thereby driving the material rod to rotate, and then the high-speed rotating grinding wheel 21 is driven by the pushing assembly 23 to feed the material rod whose end extends out of the discharge hole 36, so as to sharpen the end of the material rod.

[0067] When the grinding mechanism 2 processes the material rods of one group of feeding mechanisms 3, the other group of feeding mechanisms 3 pushes the material rods to the discharge hole 36. After the material rods extending from the previous group of feeding mechanisms 3 are ground, the grinding wheel 21 is fed to the material rods of the other feeding mechanism 3 by the pushing assembly 23, thereby grinding the material rods of the other feeding mechanism 3. This reciprocating process is used to realize the alternating feeding and grinding process of the two groups of feeding mechanisms 3, with high automation and work efficiency and good quality of finished products.

[0068] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sharpening machine, characterized in that: The invention comprises a frame (1), a grinding mechanism (2) for grinding a material bar, and at least one set of feeding mechanisms (3) for conveying the material bar to the grinding mechanism (2), wherein the feeding mechanism (3) comprises a base (31) mounted on the frame (1), and a material discharge assembly (32) and a positioning assembly (33) connected to the base (31), wherein the positioning assembly (33) comprises a positioning frame (331) connected to the base (31), a push rod (332) horizontally slidably connected to the positioning frame (331), and a power member (333) arranged on the positioning frame (331) for pushing the push rod (332) toward the grinding mechanism (2), wherein the positioning frame (331) is provided with a horizontally extending material trough (35), and the push rod (332) is slidably connected to the positioning frame (331). The material feeding mechanism (2) is placed in the material trough (35); the material discharging assembly (32) comprises a material discharging frame (321) slidably connected to the base (31), a material bin (322) arranged on the material discharging frame (321) for storing material rods, and a driving member (323) installed on the base (31) for pushing the material bin (322) toward the material trough (35); a material channel (327) capable of accommodating a single material rod is provided at the bottom of the material bin (322); the material rod can be moved into the material trough (35) through the material channel (327) under the action of the driving member (323); the grinding mechanism (2) comprises a grinding wheel (21), a rotating member (22) for driving the grinding wheel (21) to rotate, and a pushing assembly (23) for driving the grinding wheel (21) to feed toward each feeding mechanism (3); The feeding mechanism (3) further comprises a fixing assembly (34) located between the positioning frame (331) and the grinding mechanism (2), the fixing assembly (34) comprising a fixing plate (341) arranged on the frame (1), a driving wheel (342) and a driven wheel (343) rotatably connected to the fixing plate (341), a fixing motor (344) mounted on the fixing plate (341) and used for driving the driving wheel (342) and / or the driven wheel (343) to rotate, and a fixing motor (344) connected to the fixing plate (341). The pressing member (345) comprises a pressing plate (3451) hinged to the fixed plate (341), a pressing wheel (3452) rotatably arranged on the pressing plate (3451), and an elastic member used to drive the pressing wheel (3452) to abut against the driving wheel (342) and the driven wheel (343), and a discharge hole (36) for the feeding rod to pass through the material trough (35) is formed between the driving wheel (342), the driven wheel (343) and the pressing wheel (3452).

2. A sharpening machine according to claim 1, characterized in that: A lifting cylinder (37) with a piston rod facing upward is also mounted on the fixed plate (341), and the piston rod of the lifting cylinder (37) abuts against the bottom of the free end of the pressing plate (3451).

3. A sharpening machine according to claim 1, characterized in that: The material bin (322) comprises two material plates (3221) arranged opposite to each other, and an extension plate (3222) and a guide plate (3223) fixed on the adjacent sides of the two material plates (3221); the extension plate (3222) is located on the side of the guide plate (3223) close to the material trough (35); at least one adjusting screw (325) is threadedly connected to the extension plate (3222); a baffle (326) is commonly fixed to the end of each adjusting screw (325); and the material channel (327) is formed by enclosing the material plates (3221), the guide plates (3223) and the baffle (326).

4. A sharpening machine according to claim 3, characterized in that: The material discharging rack (321) comprises a vertical plate (3211) slidably connected to the base (31) and a support plate (3212) fixed on the upper side of the vertical plate (3211); a horizontally extending sliding groove (3218) is provided on the side of the support plate (3212); two sliding blocks (3219) are slidably arranged in the sliding groove (3218); sliding bolts (324) threadedly connected to the sliding blocks (3219) are respectively passed through the guide plate (3223); and the sliding bolts (324) are in contact with the bottom wall of the sliding groove (3218).

5. A sharpening machine according to claim 4, characterized in that: The base (31) is connected to a first induction switch (3152) and a second induction switch (3153) which are horizontally distributed, the first induction switch (3152) being located on a side of the second induction switch (3153) away from the material trough (35), and a metal block (3213) which can be detected by the first induction switch (3152) or the second induction switch (3153) is arranged at the bottom of the vertical plate (3211).

6. A sharpening machine according to claim 1, characterized in that: The positioning frame (331) includes a connecting plate (3311) and a positioning plate (3313) arranged on the upper side of the connecting plate (3311); the material trough (35) is provided on the positioning plate (3313); a connecting hole (3314) extending in a vertical direction is provided on the side of the connecting plate (3311); a connecting bolt (3315) threadedly connected to the base (31) is passed through the connecting hole (3314).

7. A sharpening machine according to claim 6, characterized in that: The positioning frame (331) further comprises a mounting frame (3312) arranged on one side of the connecting plate (3311); the power member (333) comprises a power cylinder (3331) arranged on the mounting frame (3312), a power rod (3332) rotatably connected to the piston rod of the power cylinder (3331), and a transition block (3333) threadedly connected to the power rod (3332); the piston rod of the power cylinder (3331) is arranged horizontally toward the power rod (3332), and the push rod (332) is connected to the transition block (3333).

8. A sharpening machine according to claim 1, characterized in that: The bottom wall of the trough (35) is in a "V" shape.

9. A sharpening machine according to claim 1, characterized in that: The frame (1) is provided with an inclined and extending material collection platform (11), which is located between the feeding mechanism (3) and the grinding mechanism (2) and is used to collect the material rods after grinding. The pushing assembly (23) is detachably provided with a protective plate (25) for preventing debris from splashing.

Images