Automatic bar feeder

Abstract

The invention relates to the technical field of feeders, and discloses an automatic bar feeder which comprises a device body and a hexagonal bar, a discharging mechanism for taking the hexagonal bar is arranged at the upper end of the device body, and a conveying and cleaning mechanism for cleaning impurities on the surface of the hexagonal bar during conveying is arranged on the upper surface of the device body. The side surface of the device body is provided with a feeding mechanism for feeding hexagonal bars after the hexagonal bars are conveyed, a connecting block and a sliding baffle are pushed backwards under the thrust of a pushing spring, and therefore a discharging opening in the lower portion of a discharging bin is closed, and the discharging effect is achieved; the rotating first conveying roller shaft drives the second rotating shaft to rotate through the second transmission belt, then the arranged first transmission belt drives the first rotating shaft to rotate, the rotating first rotating shaft and the rotating second rotating shaft stir the hexagonal bars at the bottom end of the interior of the discharging bin through the arranged stirring rods, and therefore the effect of preventing a discharging opening from being blocked is achieved.

Description

Technical Field

[0001] This invention relates to the field of feeding machine technology, and specifically provides an automatic bar feeder. Background Technology

[0002] An automatic bar feeder is a specialized piece of equipment used for the automated conveying of bar raw materials. It is mainly used in conjunction with CNC lathes, milling machines, grinding machines and other processing equipment. Its core function is to replace manual labor in the loading, conveying, positioning and feeding of bars, thereby realizing the automation and continuity of the processing flow.

[0003] Patent CN107838507A discloses an automatic bar feeding mechanism, comprising a mechanism platform, a left sealing plate, a right sealing plate, and an upper clamping flywheel and a lower clamping flywheel disposed between the left and right sealing plates. The mechanism is characterized in that the upper and lower clamping flywheels are each composed of discs of different diameters stacked sequentially, with discs of the same diameter corresponding one-to-one on both the upper and lower clamping flywheels. By using corresponding discs of different diameters on the upper and lower clamping flywheels, the mechanism achieves the purpose of transporting bars of different diameters using combinations of discs of different diameters, thus enabling the switching of clamping flywheels of different diameters to meet the conveying requirements of bars of varying diameters.

[0004] This application improves upon the automatic bar feeder by using corresponding discs of different diameters on the upper and lower clamping flywheels to transport bars of different diameters. However, when using this device, the feeder guide sleeve and rollers are circular, which can easily cause radial offset, rotation, and jamming when transporting hexagonal bars, making it impossible to accurately enter the machine tool spindle. Furthermore, the surface of the hexagonal bars (especially the edges) is prone to adhering to impurities such as iron filings, oil, and oxide scale. Traditional solutions require manual wiping or external cleaning equipment, increasing the number of processes and reducing efficiency. Moreover, residual impurities can scratch the machined surface and damage the cutting tools. Therefore, we propose an automatic bar feeder. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an automatic bar feeder that solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic bar feeder, comprising a device body and hexagonal bars, wherein the upper end of the device body is provided with a feeding mechanism for picking up the hexagonal bars, the upper surface of the device body is provided with a conveying and cleaning mechanism for cleaning surface debris during the conveying of the hexagonal bars, and the side surface of the device body is provided with a feeding mechanism for feeding the hexagonal bars after they have been conveyed.

[0007] Preferably, the feeding mechanism includes a feeding bin fixedly connected to the upper surface of the device body. A fixed baffle is fixedly connected to one side of the feeding bin. A fixed rod is fixedly connected to one side of the fixed baffle. A connecting block is slidably connected to the outer surface of the fixed rod. A push spring is sleeved on the outer surface of the fixed rod. A sliding baffle is fixedly connected to the bottom end of the connecting block. A sliding block is slidably connected to the inside of the sliding baffle. A fixed stop is fixedly connected to the bottom end of the feeding bin. A limit block is fixedly connected to the side surface of the sliding block. A limit groove is formed inside the sliding baffle.

[0008] Preferably, the material discharge hopper is internally rotatably connected to a first rotating shaft and a second rotating shaft. A first transmission wheel is fixedly connected to the outer surface of one end of the first rotating shaft, and a second transmission wheel is fixedly connected to the outer surface of one end of the second rotating shaft. A first transmission belt is driven to the outer surface of the first transmission wheel, and a lever is fixedly connected to the outer surfaces of the first rotating shaft and the second rotating shaft.

[0009] Preferably, the device body is internally rotatably connected to a first conveyor roller shaft, a second conveyor roller shaft, and a third conveyor roller shaft. The outer surface of the first conveyor roller shaft is driven by a first conveyor belt, and the outer surface of the third conveyor roller shaft is driven by a second conveyor belt. A limit plate is fixedly connected to the upper surface of the first conveyor belt.

[0010] Preferably, the hexagonal bar is placed inside the discharge bin, the first and second conveyor rollers are connected by a first conveyor belt, the second and third conveyor rollers are connected by a second conveyor belt, the sliding baffle is slidably connected below the discharge bin, the distance between the discharge bin and the first conveyor belt is greater than the thickness of one hexagonal bar, the fixed blocks are arranged on both sides of the limiting plate, and the distance between the two fixed blocks is greater than the width of the limiting plate, the limiting block is slidably connected inside the limiting groove, and the first and second transmission wheels are connected by a first transmission belt.

[0011] Preferably, the conveying and cleaning mechanism includes a first cleaning roller shaft rotatably connected inside the device body, a fixed frame fixedly connected to the side surface of the discharge bin, a second cleaning roller shaft rotatably connected inside the fixed frame, a second transmission belt and a third transmission belt drivingly connected to the outer surface of the first conveying roller shaft, a fourth transmission belt drivingly connected to the outer surface of the second cleaning roller shaft, and a first collection box and a second collection box slidably connected inside the device body.

[0012] Preferably, the first conveying roller shaft and the second rotating shaft are connected by a second transmission belt, the first conveying roller shaft and the first cleaning roller shaft are connected by a third transmission belt, the second cleaning roller shaft and the first rotating shaft are connected by a fourth transmission belt, the second collection box is disposed below the first conveyor belt, and the first collection box is disposed below the second conveyor belt.

[0013] Preferably, the feeding mechanism includes an oil storage tank fixedly connected to the side surface of the device body, an observation window is provided on the side surface of the oil storage tank, a conveying wheel is rotatably connected to the side surface of the device body, a guide rod is fixedly connected to the side surface of the device body, an adjusting plate is slidably connected to the outer surface of the guide rod, and a discharge port is provided inside the adjusting plate.

[0014] Preferably, an electric guide rail is fixedly connected to the upper inner surface of the oil storage tank, a telescopic rod is slidably connected inside the electric guide rail, a discharge trough is fixedly connected to the bottom end of the telescopic rod, a connecting rod is fixedly connected to one side of the oil storage tank, and an air jet is fixedly connected to one end of the connecting rod.

[0015] Preferably, the lower surface of the device body is fixedly connected to a support leg, the adjusting plate is slidably connected inside the oil storage tank, and multiple conveying wheels are provided.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention uses a feeding mechanism to feed hexagonal bars. The hexagonal bars are first placed into the feeding hopper, and then a motor is started to drive the first conveyor roller to rotate. When the first conveyor roller rotates, it drives the first conveyor belt and the second conveyor belt. When the first conveyor belt rotates, the limiting plate on the upper surface of the first conveyor belt pushes the sliding baffle and the sliding block forward, causing the hexagonal bars inside the feeding hopper to fall out of the feeding hopper. When the sliding block moves forward in front of the fixed block, the fixed block pushes the sliding block upward, causing the limiting plate to disengage from the sliding block. Under the thrust of the push spring, the connecting block and the sliding baffle are pushed backward, thereby closing the discharge port below the feeding hopper, thus achieving the feeding function. At the same time as feeding, the rotating first conveyor roller drives the second rotating shaft to rotate through the second transmission belt, and then drives the first rotating shaft to rotate through the first transmission belt. The rotating first and second rotating shafts move the hexagonal bars at the bottom of the feeding hopper through the set toggle rod, thereby preventing blockage of the discharge port.

[0017] 2. This invention uses a conveying and cleaning mechanism to clean iron filings and impurities adhering to the surface of hexagonal bars during the conveying process. When the hexagonal bars are conveyed above the first conveying roller shaft, the second cleaning roller shaft is driven to rotate via the second and fourth transmission belts to clean the iron filings and impurities adhering to the upper surface of the hexagonal bars. At the same time, the first conveying roller shaft is driven to rotate via the third transmission belt. When the second and first cleaning roller shafts rotate to clean the hexagonal bars, the hexagonal bars are rotated and cleaned between the second and first cleaning roller shafts until they move to the front of the rear limiting plate, where the limiting plate pushes them forward to continue conveying. The cleaned iron filings fall into the interior of the second collection box, thus achieving the collection function. Attached Figure Description

[0018] Figure 1 This is a front view of an automatic bar feeder proposed in this invention; Figure 2 For the present invention Figure 1 Enlarged view of point A; Figure 3 This is a cross-sectional view of the unloading mechanism of an automatic bar feeder proposed in this invention; Figure 4 For the present invention Figure 3 Enlarged view of point B; Figure 5 This is a side sectional view of an automatic bar feeder proposed in this invention; Figure 6 For the present invention Figure 5 Enlarged view of point C; Figure 7 This is a schematic diagram of the feeding mechanism of an automatic bar feeder proposed in this invention; Figure 8 For the present invention Figure 7 Enlarged view of point D.

[0019] Legend: 1. Device body; 2. Feeding mechanism; 201. Feeding bin; 202. First conveyor roller; 203. Second conveyor roller; 204. First conveyor belt; 205. Fixed baffle; 206. Fixed rod; 207. Push spring; 208. Connecting block; 209. Sliding baffle; 210. Sliding block; 211. Fixed block; 212. Limiting plate; 213. First rotating shaft; 214. Second rotating shaft; 215. First transmission wheel; 216. Second transmission wheel; 217. First transmission belt; 218. Actuating rod; 219. Limiting block; 220. Limiting groove; 221. Third conveyor roller; 222. Second conveyor belt; 3. Conveying and cleaning mechanism; 301. First cleaning roller shaft; 302. Fixing frame; 303. Second cleaning roller shaft; 304. Second transmission belt; 305. Third transmission belt; 306. Fourth transmission belt; 307. First collection box; 308. Second collection box; 4. Feeding mechanism; 401. Oil storage tank; 402. Adjusting plate; 403. Conveying wheel; 404. Observation window; 405. Discharge port; 406. Guide rod; 407. Electric guide rail; 408. Telescopic rod; 409. Discharge chute; 410. Connecting rod; 411. Air jet nozzle; 5. Hexagonal bar; 6. Support leg. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0022] like Figures 1-8 An automatic bar feeder is shown, comprising a device body 1 and a hexagonal bar 5. The upper end of the device body 1 is provided with a feeding mechanism 2 for picking up the hexagonal bar 5. The upper surface of the device body 1 is provided with a conveying and cleaning mechanism 3 for cleaning surface debris during the conveying of the hexagonal bar 5. The side surface of the device body 1 is provided with a feeding mechanism 4 for feeding the hexagonal bar 5 after it has been conveyed.

[0023] The feeding mechanism 2 includes a feeding bin 201 fixedly connected to the upper surface of the device body 1. A fixed baffle 205 is fixedly connected to one side of the feeding bin 201. A fixed rod 206 is fixedly connected to one side of the fixed baffle 205. A connecting block 208 is slidably connected to the outer surface of the fixed rod 206. A push spring 207 is sleeved on the outer surface of the fixed rod 206. A sliding baffle 209 is fixedly connected to the bottom end of the connecting block 208. A sliding block 210 is slidably connected inside the sliding baffle 209. A fixed stop block 211 is fixedly connected to the bottom end of the feeding bin 201. A limiting block 219 is fixedly connected to the side surface of the locking block 210. A limiting groove 220 is formed inside the sliding baffle 209. A first rotating shaft 213 and a second rotating shaft 214 are rotatably connected inside the discharge bin 201. A first transmission wheel 215 is fixedly connected to the outer surface of one end of the first rotating shaft 213. A second transmission wheel 216 is fixedly connected to the outer surface of one end of the second rotating shaft 214. A first transmission belt 217 is driven to the outer surface of the first transmission wheel 215. A toggle mechanism is fixedly connected to the outer surfaces of the first rotating shaft 213 and the second rotating shaft 214. Rod 218, the device body 1 is internally rotatably connected to a first conveyor roller shaft 202, a second conveyor roller shaft 203, and a third conveyor roller shaft 221. The outer surface of the first conveyor roller shaft 202 is connected to a first conveyor belt 204, and the outer surface of the third conveyor roller shaft 221 is connected to a second conveyor belt 222. A limit plate 212 is fixedly connected to the upper surface of the first conveyor belt 204. A hexagonal bar 5 is placed inside the discharge hopper 201. The first conveyor roller shaft 202 and the second conveyor roller shaft 203 are connected via the first conveyor belt 204. The second conveyor roller... Shaft 203 and third conveyor roller shaft 221 are connected by transmission through second conveyor belt 222. Sliding baffle 209 is slidably connected below discharge bin 201. The distance between discharge bin 201 and first conveyor belt 204 is greater than the thickness of a hexagonal bar 5. Fixed blocks 211 are set on both sides of limiting plate 212, and the distance between the two fixed blocks 211 is greater than the width of limiting plate 212. Limiting block 219 is slidably connected inside limiting groove 220. First transmission wheel 215 and second transmission wheel 216 are connected by transmission through first transmission belt 217.

[0024] Furthermore, the hexagonal bar 5 is fed into the feeding hopper 201 by the feeding mechanism 2. The hexagonal bar 5 is first placed into the feeding hopper 201, and then the motor is started to drive the first conveyor roller shaft 202 to rotate. When the first conveyor roller shaft 202 rotates, it will drive the first conveyor belt 204 and the second conveyor belt 222 to drive each other. When the first conveyor belt 204 rotates, the limiting plate 212 set on the upper surface of the first conveyor belt 204 pushes the sliding baffle 209 and the sliding block 210 forward, so that the hexagonal bar 5 inside the feeding hopper 201 falls out of the feeding hopper 201. When the sliding block 210 moves to the front of the fixed block 211 and continues to move forward, the fixed block 211 will slide the block 210. The locking block 210 is pushed upward, thereby disengaging the limiting plate 212 from the sliding locking block 210. Under the thrust of the pushing spring 207, the connecting block 208 and the sliding baffle 209 are pushed backward, thereby closing the discharge port below the discharge bin 201, thus achieving the function of discharging material. At the same time as discharging material, the rotating first conveying roller shaft 202 drives the second rotating shaft 214 to rotate through the second transmission belt 304, and then drives the first rotating shaft 213 to rotate through the first transmission belt 217. The rotating first rotating shaft 213 and the second rotating shaft 214 move the hexagonal bar 5 at the bottom of the discharge bin 201 through the set toggle rod 218, thereby preventing the discharge port from being blocked.

[0025] The conveying and cleaning mechanism 3 includes a first cleaning roller shaft 301 rotatably connected inside the device body 1. A fixed frame 302 is fixedly connected to the side surface of the discharge bin 201. A second cleaning roller shaft 303 is rotatably connected inside the fixed frame 302. A second transmission belt 304 and a third transmission belt 305 are drivenly connected to the outer surface of the first conveying roller shaft 202. A fourth transmission belt 306 is drivenly connected to the outer surface of the second cleaning roller shaft 303. A first collection box 307 and a second collection box 308 are slidably connected inside the device body 1. The first conveying roller shaft 202 and the second rotating shaft 214 are drivenly connected by the second transmission belt 304. The first conveying roller shaft 202 and the first cleaning roller shaft 301 are drivenly connected by the third transmission belt 305. The second cleaning roller shaft 303 and the first rotating shaft 213 are drivenly connected by the fourth transmission belt 306. The second collection box 308 is located below the first conveyor belt 204, and the first collection box 307 is located below the second conveyor belt 222.

[0026] Furthermore, the conveying and cleaning mechanism 3 is used to clean the iron filings and impurities adhering to the surface of the hexagonal bar 5 during the conveying process. When the hexagonal bar 5 is conveyed above the first conveying roller 202, the second cleaning roller 303 is driven to rotate by the second transmission belt 304 and the fourth transmission belt 306 to clean the iron filings and impurities adhering to the upper surface of the hexagonal bar 5. At the same time, the first conveying roller 202 drives the first cleaning roller 301 to rotate by the third transmission belt 305. When the second cleaning roller 303 and the first cleaning roller 301 rotate to clean the hexagonal bar 5, the hexagonal bar 5 will be moved and rotated between the second cleaning roller 303 and the first cleaning roller 301 for cleaning, until it moves to the front of the rear limiting plate 212 and is pushed forward by the limiting plate 212 to continue conveying. The cleaned iron filings will fall into the interior of the second collection box 308, thereby achieving the collection function.

[0027] The feeding mechanism 4 includes an oil storage tank 401 fixedly connected to the side surface of the device body 1. An observation window 404 is provided on the side surface of the oil storage tank 401. A conveying wheel 403 is rotatably connected to the side surface of the device body 1. A guide rod 406 is fixedly connected to the side surface of the device body 1. An adjusting plate 402 is slidably connected to the outer surface of the guide rod 406. A discharge port 405 is provided inside the adjusting plate 402. An electric guide rail 407 is fixedly connected to the upper inner surface of the oil storage tank 401. A telescopic rod 408 is slidably connected inside the electric guide rail 407. A discharge trough 409 is fixedly connected to the bottom end of the telescopic rod 408. A connecting rod 410 is fixedly connected to one side of the oil storage tank 401. A jet nozzle 411 is fixedly connected to one end of the connecting rod 410. A support leg 6 is fixedly connected to the lower surface of the device body 1. The adjusting plate 402 is slidably connected inside the oil storage tank 401. Multiple conveying wheels 403 are provided.

[0028] Furthermore, the cleaned hexagonal bar 5 is conveyed to the feeding device by the feeding mechanism 4. The hexagonal bar 5, which is conveyed to the discharge trough 409 by the second conveyor belt 222, is then fed into the conveyor wheel 403 by the telescopic rod 408 and the electric guide rail 407. At the same time, the position of the adjustment plate 402 can be adjusted. When the hexagonal bar 5 passes above the second conveyor belt 222, the dust remaining on the surface of the hexagonal bar 5 is cleaned by the air jet 411.

[0029] Working principle: The hexagonal bar 5 is first placed into the feeding bin 201. Then, the motor is started to drive the first conveyor roller 202 to rotate. When the first conveyor roller 202 rotates, it drives the first conveyor belt 204 and the second conveyor belt 222 to transmit power. When the first conveyor belt 204 rotates, the limiting plate 212 on the upper surface of the first conveyor belt 204 pushes the sliding baffle 209 and the sliding block 210 forward, thereby causing the hexagonal bar 5 inside the feeding bin 201 to fall out of the feeding bin 201. When the sliding block 210 moves forward in front of the fixed stop 211, the fixed stop 211 pushes the sliding block 210 upward, from... The limiting plate 212 disengages from the sliding block 210, and under the thrust of the pushing spring 207, the connecting block 208 and the sliding baffle 209 are pushed backward, thereby closing the discharge port below the discharge bin 201, thus achieving the function of discharging material. At the same time as discharging material, the rotating first conveying roller shaft 202 drives the second rotating shaft 214 to rotate through the second transmission belt 304, and then drives the first rotating shaft 213 to rotate through the first transmission belt 217. The rotating first rotating shaft 213 and the second rotating shaft 214 move the hexagonal bar 5 at the bottom of the discharge bin 201 through the set toggle rod 218, thereby preventing the discharge port from being blocked. The second cleaning roller 303 is driven to rotate via the second transmission belt 304 and the fourth transmission belt 306 to clean the iron filings and impurities adhering to the upper surface of the hexagonal bar 5. Simultaneously, the first conveying roller 202 drives the first cleaning roller 301 to rotate via the third transmission belt 305. As the second and first cleaning rollers rotate to clean the hexagonal bar 5, the bar 5 is moved and rotated between them until it moves in front of the rear limiting plate 212, where it is pushed forward to continue cleaning. The iron filings removed during conveying and cleaning fall into the second collection box 308 for collection. When the hexagonal bar 5 passes above the second conveyor belt 222, the dust remaining on the surface of the hexagonal bar 5 is cleaned by the air jet 411. The cleaned hexagonal bar 5 is conveyed to the feeding device by the feeding mechanism 4. The hexagonal bar 5, which is conveyed to the discharge trough 409 by the second conveyor belt 222, is fed into the conveyor wheel 403 by the telescopic rod 408 and the electric guide rail 407. At the same time, the adjustment plate 402 can adjust its position.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. An automatic bar feeder, comprising a device body (1) and hexagonal bars (5), characterized in that: The upper end of the device body (1) is provided with a feeding mechanism (2) for picking up hexagonal bars (5), the upper surface of the device body (1) is provided with a conveying and cleaning mechanism (3) for cleaning surface debris when conveying hexagonal bars (5), and the side surface of the device body (1) is provided with a feeding mechanism (4) for feeding hexagonal bars (5) after conveying them.

2. The automatic bar feeder according to claim 1, characterized in that: The feeding mechanism (2) includes a feeding bin (201) fixedly connected to the upper surface of the device body (1). A fixed baffle (205) is fixedly connected to one side of the feeding bin (201). A fixed rod (206) is fixedly connected to one side of the fixed baffle (205). A connecting block (208) is slidably connected to the outer surface of the fixed rod (206). A push spring (207) is sleeved on the outer surface of the fixed rod (206). A sliding baffle (209) is fixedly connected to the bottom end of the connecting block (208). A sliding block (210) is slidably connected inside the sliding baffle (209). A fixed stop block (211) is fixedly connected to the bottom end of the feeding bin (201). A limit block (219) is fixedly connected to the side surface of the sliding block (210). A limit groove (220) is opened inside the sliding baffle (209).

3. An automatic bar feeder according to claim 2, characterized in that: The material feeding hopper (201) is internally rotatably connected to a first rotating shaft (213) and a second rotating shaft (214). A first transmission wheel (215) is fixedly connected to the outer surface of one end of the first rotating shaft (213), and a second transmission wheel (216) is fixedly connected to the outer surface of one end of the second rotating shaft (214). A first transmission belt (217) is connected to the outer surface of the first transmission wheel (215), and a lever (218) is fixedly connected to the outer surfaces of the first rotating shaft (213) and the second rotating shaft (214).

4. An automatic bar feeder according to claim 3, characterized in that: The device body (1) is internally rotatably connected to a first conveyor roller shaft (202), a second conveyor roller shaft (203), and a third conveyor roller shaft (221). The outer surface of the first conveyor roller shaft (202) is connected to a first conveyor belt (204), and the outer surface of the third conveyor roller shaft (221) is connected to a second conveyor belt (222). The upper surface of the first conveyor belt (204) is fixedly connected to a limit plate (212).

5. An automatic bar feeder according to claim 4, characterized in that: The hexagonal bar (5) is placed inside the feeding bin (201). The first conveying roller shaft (202) and the second conveying roller shaft (203) are connected by the first conveyor belt (204). The second conveying roller shaft (203) and the third conveying roller shaft (221) are connected by the second conveyor belt (222). The sliding baffle (209) is slidably connected below the feeding bin (201). The distance between the feeding bin (201) and the first conveyor belt (204) is greater than the thickness of one hexagonal bar (5). The fixed blocks (211) are set on both sides of the limiting plate (212), and the distance between the two fixed blocks (211) is greater than the width of the limiting plate (212). The limiting block (219) is slidably connected inside the limiting groove (220). The first transmission wheel (215) and the second transmission wheel (216) are connected by the first transmission belt (217).

6. An automatic bar feeder according to claim 5, characterized in that: The conveying and cleaning mechanism (3) includes a first cleaning roller shaft (301) rotatably connected inside the device body (1), a fixed frame (302) fixedly connected to the side surface of the discharge bin (201), a second cleaning roller shaft (303) rotatably connected inside the fixed frame (302), a second transmission belt (304) and a third transmission belt (305) drivingly connected to the outer surface of the first conveying roller shaft (202), a fourth transmission belt (306) drivingly connected to the outer surface of the second cleaning roller shaft (303), and a first collection box (307) and a second collection box (308) slidingly connected inside the device body (1).

7. An automatic bar feeder according to claim 6, characterized in that: The first conveying roller shaft (202) and the second rotating shaft (214) are connected by a second transmission belt (304). The first conveying roller shaft (202) and the first cleaning roller shaft (301) are connected by a third transmission belt (305). The second cleaning roller shaft (303) and the first rotating shaft (213) are connected by a fourth transmission belt (306). The second collection box (308) is located below the first conveyor belt (204), and the first collection box (307) is located below the second conveyor belt (222).

8. An automatic bar feeder according to claim 1, characterized in that: The feeding mechanism (4) includes an oil storage tank (401) fixedly connected to the side surface of the device body (1). An observation window (404) is provided on the side surface of the oil storage tank (401). A conveying wheel (403) is rotatably connected to the side surface of the device body (1). A guide rod (406) is fixedly connected to the side surface of the device body (1). An adjusting plate (402) is slidably connected to the outer surface of the guide rod (406). A discharge port (405) is provided inside the adjusting plate (402).

9. An automatic bar feeder according to claim 8, characterized in that: An electric guide rail (407) is fixedly connected to the upper inner surface of the oil storage tank (401). A telescopic rod (408) is slidably connected inside the electric guide rail (407). A discharge chute (409) is fixedly connected to the bottom end of the telescopic rod (408). A connecting rod (410) is fixedly connected to one side of the oil storage tank (401). An air jet nozzle (411) is fixedly connected to one end of the connecting rod (410).

10. An automatic bar feeder according to claim 9, characterized in that: The lower surface of the device body (1) is fixedly connected to a support leg (6), the adjustment plate (402) is slidably connected inside the oil storage tank (401), and multiple conveying wheels (403) are provided.

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