Metal part screening machine

Abstract

The present invention belongs to the technical field of screening equipment, and discloses a metal part screening machine, which includes a material guiding frame and a bottom plate. A material guiding groove is formed inside the material guiding frame, and a distribution mechanism is fixedly communicated with the upper end of the material guiding frame, and a feeding mechanism is fixedly communicated with the upper end of the distribution mechanism. Through the defective products that cannot fit and fall out in the arc groove, and at the same time, as the static defective products continuously seal the first hole, the amount of air pumped into the first hole increases and pushes the movable rod in the second hole to move horizontally. The horizontally moved movable rod touches the controller to make the pushing mechanism act, and the pushing mechanism is used to push the defective products out to the collection box from one side. It actually has a good screening effect on metal parts with defects on the inner and outer surfaces, greatly improving the actual screening effect, avoiding the situation that the inner wall of the annular metal part is deformed and being screened as qualified products, and there is no need for subsequent re-screening steps. The screening effect is good and the processing efficiency is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of screening equipment, and specifically relates to a metal part screening machine. Background Art

[0002] Metal parts refer to the general term for various metal blocks, metal rods, metal tubes, etc. of various specifications and shapes made of metal materials. The materials of metal parts include steel and non-ferrous metals (or non-ferrous metals). Steel: An alloy of iron with a carbon content of 2% - 4.3% is cast iron, and an alloy of iron with a carbon content generally of 0.03% - 2% is steel. In the Fe-C alloy, various appropriate alloying elements are purposefully added to improve the strength, hardness, wear resistance, corrosion resistance and other properties of steel. For the processing and production of different metal parts, parts of different specific shapes are usually produced. For ring-shaped metal parts, qualified products are usually screened after manufacturing.

[0003] In the existing metal part screening machines, during use, ring-shaped metal parts produced uniformly are usually placed in a vibrating screening machine, and with the vibration of the screening machine and the round holes on the sieve plate, the ring-shaped metal parts with outer surfaces meeting the size specifications are screened out. However, in actual ring-shaped metal parts, in addition to manufacturing defects on the surface, there are also manufacturing defects on the inner wall. However, when screening by the current method of screening holes, it is difficult to complete the screening of ring-shaped metal parts with defects on the inner wall, and the actual screening effect is not good. After the initial screening, additional equipment is required to detect and screen the inner wall of the ring-shaped metal parts, and the screening steps are troublesome.

[0004] In addition, in the existing metal part screening machines, when the screening is completed, the ring-shaped metal parts with defects on the outer side remain on the sieve plate, and the qualified ring-shaped metal parts fall out through the screening holes and enter the collection box uniformly. However, the randomly falling ring-shaped metal parts need to be sorted and stacked additionally after screening. For the screening of a large number of ring-shaped metal parts, a stacking process needs to be added to the actually screened ring-shaped metal parts, and the operation is troublesome and the efficiency is low. Summary of the Invention

[0005] The purpose of the present invention is to provide a metal part screening machine to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solutions: a metal part screening machine, including a material guiding frame and a bottom plate. A material guiding groove is formed inside the material guiding frame. The upper end of the material guiding frame is fixedly communicated with a distribution mechanism. The upper end of the distribution mechanism is fixedly communicated with a feeding mechanism. An adjusting mechanism is fixedly installed on the top of the distribution mechanism. Screening holes communicating with the material guiding groove are formed on the bottom surface of the material guiding frame. A buffer mechanism is provided between the material guiding frame and the bottom plate. An arc groove communicating with the material guiding groove is formed on the top surface of the material guiding frame. A first groove and a second groove are respectively formed on the two side surfaces of the material guiding frame. A pushing mechanism and a blocking mechanism are respectively fixedly installed on the two side surfaces of the material guiding frame. A first hole and a second hole are respectively formed inside the lower end of the material guiding frame. A controller is provided on the side surface of the material guiding frame. The inner end of the controller is fixedly sleeved in the second hole. An air pump is fixedly connected to the top of the material guiding frame. A trachea is fixedly communicated with the side surface of the air pump. The lower end of the trachea is communicated with the first hole. A fixing ring is fixedly sleeved inside the second hole. The inner surface of the fixing ring is movably sleeved with a movable rod. The inner end of the movable rod is fixedly connected with a movable plug. The movable plug is located inside the second hole. A first spring is fixedly connected between the movable plug and the fixing ring. A detection mechanism is magnetically adsorbed on the top surface of the bottom plate. The detection mechanism includes a detection rod, a support plate and a positioning rod. The detection rod is located directly below the screening hole. The upper end of the detection rod is located inside the screening hole.

[0007] When the amount of air pumped into the first hole increases, it pushes the movable rod in the second hole to move horizontally. The horizontally moved movable rod is used to touch the controller. The controller receives the control signal and makes the pushing mechanism energize and start. The defective products are pushed out to the collection box from one side by the pushing mechanism.

[0008] Preferably, the detection rod is fixedly connected to the top surface of the support plate, and the positioning rod is fixedly connected to the bottom surface of the support plate.

[0009] Preferably, the pushing mechanism includes a mounting frame, an electric push rod and a push plate. The mounting frame is fixedly connected to the side surface of the material guiding frame. The electric push rod is fixedly installed inside the mounting frame. The push plate is fixedly connected to the end surface of the electric push rod. The push plate is movably sleeved in the first groove.

[0010] Preferably, the blocking mechanism includes a fixing plate, a fixing shaft, a movable tube, a torsion spring and a curved rod. The number of the fixing plates is two. The two fixing plates are fixedly connected to the upper and lower surfaces of the material guiding frame. The fixing shaft is fixedly connected between the two fixing plates. The movable tube is movably sleeved on the outer surface of the fixing shaft. The curved rod is fixedly connected to the outer surface of the movable tube. The torsion spring is fixedly connected between the movable tube and the fixing plate. The curved rod is located inside the second groove.

[0011] Preferably, both the first slot and the second slot are communicated with the material guiding slot, and the first slot and the second slot are symmetrically distributed on the left and right sides of the screening hole.

[0012] Preferably, a bottom slot and a bottom hole are respectively formed on the top surface of the bottom plate, a collecting box is provided on the top plate of the bottom plate, the collecting box is located in the bottom slot, a baffle is fixedly connected to the top surface of the collecting box, the collecting box is located on one side of the second slot, a magnetic ring is fixedly sleeved inside the bottom hole, the inner surface of the magnetic ring is movably sleeved with a positioning rod, and the top surface of the magnetic ring is magnetically adsorbed to the support plate.

[0013] Preferably, a vibration mechanism is fixedly installed on the top surface of the bottom plate. The vibration mechanism includes a motor frame, a motor and a cam. The motor frame is fixedly installed on the top surface of the bottom plate, the motor is fixedly installed on the top surface of the motor frame, and the cam is fixedly sleeved on the output shaft of the motor.

[0014] Preferably, the buffer mechanism includes a fixed pipe, a sleeve rod and a second spring. The fixed pipe is fixedly connected to the top surface of the bottom plate. The second spring is located inside the fixed pipe and is fixedly connected to the top surface of the bottom plate. The sleeve rod is movably sleeved inside the fixed pipe and is fixedly connected to the second spring. The buffer mechanism includes two groups on the left and right. The sleeve rod in one group of the buffer mechanisms is fixedly connected to the feeding mechanism, and the sleeve rod of the other group of the buffer mechanisms is fixedly connected to a connecting plate, and the connecting plate is fixedly connected to the bottom surface of the material guiding frame.

[0015] Preferably, the distribution mechanism includes a distribution plate, a distribution slot, a first guiding plate and a second guiding plate. The lower end of the distribution plate is fixedly connected to the upper end of the material guiding frame. The distribution slot is formed on the top surface of the distribution plate and is communicated with the material guiding slot. The first guiding plate and the second guiding plate are both fixedly connected to the upper end of the distribution plate. The second guiding plate is located on both sides of the first guiding plate. The first guiding plate and the distribution slot are alternately distributed. The adjusting mechanism includes a fixing frame and an adjusting strip. The fixing frame is fixedly connected to the top surface of the distribution plate. The fixing frame is located above the distribution slot. The adjusting strip is fixedly connected inside the fixing frame. The adjusting strip is an elastic strip and is located inside the distribution slot.

[0016] Preferably, the feeding mechanism includes an upper plate, a lower plate, an intermediate plate and a feeding port. The upper plate and the lower plate are both fixedly connected to the upper end of the distribution plate. The upper plate and the lower plate are respectively located on the upper and lower sides of the first guiding plate. The intermediate plate is fixedly connected between the upper plate and the lower plate. The feeding port is formed on the top surface of the upper plate.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The present invention uses a feeding mechanism and cooperates with a distribution mechanism to distribute a large number of metal parts into each group of guide frames, and cooperates with an adjustment mechanism and a vibration mechanism, so that the metal parts slide horizontally along the guide groove into the arc groove. Cooperating with the screening holes on one side of the arc groove and the detection rods in the screening holes, when the inner and outer surfaces of the ring-shaped metal parts are intact and meet the specifications, they slide along the detection rods and are sleeved into the inside of the detection rods, while defective products cannot fit and fall out in the arc groove. At the same time, as the static defective products continuously seal the first hole, the amount of air pumped into the first hole increases and pushes the movable rod in the second hole to move horizontally. The horizontally moved movable rod touches the controller and causes the pushing mechanism to act. The pushing mechanism pushes the defective products out to the collection box from one side. It actually has a good screening effect on metal parts with defects on the inner and outer surfaces, greatly improving the actual screening effect, avoiding the ring-shaped metal parts with deformed inner walls from being screened as qualified products, and there is no need for subsequent re-screening steps. The screening effect is good and the processing efficiency is high.

[0019] 2. The present invention uses a detection mechanism magnetically fixed on the top surface of the bottom plate and cooperates with the detection rods on the detection mechanism. During the screening process, the qualified ring-shaped metal parts automatically fall and are sleeved on the outer surface of the detection rods. When the screening is completed, a large number of qualified ring-shaped metal parts are automatically stacked and sleeved on the detection rods. And cooperating with the adsorption-fixed detection mechanism, it is convenient to take out and transfer the stacked and sleeved metal parts. Actually, the stacking and sorting are automatically completed during the screening, reducing the subsequent sorting steps, reducing the process and greatly improving the actual screening efficiency, with good use effect.

[0020] 3. The present invention makes the detection mechanism be adsorbed and fixed through the magnetic ring at the bottom and cooperates with the positioning rod in the detection mechanism, so that the positioning rod is sleeved in the magnetic ring to complete accurate positioning and adsorption. And when it is necessary to adapt to ring-shaped metal parts with different inner hole diameters, by directly replacing the detection mechanism with detection rods of different diameters, the replacement and adjustment can be realized, and the screening of ring-shaped metal parts of different specifications can be adapted, greatly improving the actual application range and having good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present invention;

[0022] Figure 2 is a rear schematic diagram of the present invention;

[0023] Figure 3 is an exploded schematic diagram of the distribution mechanism and the feeding mechanism of the present invention;

[0024] Figure 4 is a schematic diagram of the adjustment mechanism of the present invention;

[0025] Figure 5 is a schematic diagram of the guide frame of the present invention;

[0026] Figure 6 This is a schematic cross-sectional view of the material guiding frame of the present invention;

[0027] Figure 7 is Figure 6 an enlarged schematic view of the structure at A in

[0028] Figure 8 This is a schematic view of the blocking mechanism of the present invention;

[0029] Figure 9 This is a schematic view of the material pushing mechanism of the present invention;

[0030] Figure 10 This is an exploded schematic view of the bottom plate of the present invention;

[0031] Figure 11 This is an exploded schematic view of the buffer mechanism of the present invention;

[0032] Figure 12 This is a schematic view of the detection mechanism of the present invention.

[0033] In the figure: 1. Material guiding frame; 2. Material guiding groove; 3. Distribution mechanism; 301. Distribution plate; 302. Distribution groove; 303. First guiding plate; 304. Second guiding plate; 4. Feeding mechanism; 401. Upper plate; 402. Lower plate; 403. Intermediate plate; 404. Feeding port; 5. Adjusting mechanism; 51. Fixed frame; 52. Adjusting strip; 6. Bottom plate; 7. Buffer mechanism; 71. Fixed tube; 72. Sleeve rod; 73. Second spring; 8. Screening hole; 9. Arc groove; 10. First groove; 11. Material pushing mechanism; 111. Mounting frame; 112. Electric push rod; 113. Pushing plate; 12. Second groove; 13. First hole; 14. Second hole; 15. Controller; 16. Air pump; 17. Air pipe; 18. Fixed ring; 19. Movable plug; 20. Movable rod; 21. First spring; 22. Detection mechanism; 221. Detection rod; 222. Support plate; 223. Positioning rod; 23. Collection box; 24. Connecting plate; 25. Vibration mechanism; 251. Motor frame; 252. Motor; 253. Cam; 26. Baffle; 27. Bottom groove; 28. Bottom hole; 29. Magnetic ring; 30. Blocking mechanism; 3001. Fixed plate; 3002. Fixed shaft; 3003. Movable tube; 3004. Torsion spring; 3005. Curved rod. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] As Figures 1 to 12 shown, an embodiment of the present invention provides a metal part screening machine, which includes a material guiding frame 1 and a bottom plate 6. A material guiding groove 2 is opened inside the material guiding frame 1. The upper end of the material guiding frame 1 is fixedly communicated with a distribution mechanism 3. The upper end of the distribution mechanism 3 is fixedly communicated with a feeding mechanism 4. An adjusting mechanism 5 is fixedly installed on the top of the distribution mechanism 3. A screening hole 8 communicating with the material guiding groove 2 is opened on the bottom surface of the material guiding frame 1. A buffer mechanism 7 is arranged between the material guiding frame 1 and the bottom plate 6. An arc groove 9 communicating with the material guiding groove 2 is opened on the top surface of the material guiding frame 1. A first groove 10 and a second groove 12 are respectively opened on the two side surfaces of the material guiding frame 1. A pushing mechanism 11 and a blocking mechanism 30 are respectively fixedly installed on the two side surfaces of the material guiding frame 1. A first hole 13 and a second hole 14 are respectively opened inside the lower end of the material guiding frame 1. A controller 15 is arranged on the side surface of the material guiding frame 1. The inner end of the controller 15 is fixedly sleeved in the second hole 14. The top of the material guiding frame 1 is fixedly connected with an air pump 16. The side surface of the air pump 16 is fixedly communicated with an air pipe 17. The lower end of the air pipe 17 is communicated with the first hole 13. A fixing ring 18 is fixedly sleeved inside the second hole 14. A movable rod 20 is movably sleeved on the inner surface of the fixing ring 18. The inner end of the movable rod 20 is fixedly connected with a movable plug 19. The movable plug 19 is located inside the second hole 14. A first spring 21 is fixedly connected between the movable plug 19 and the fixing ring 18. A detection mechanism 22 is magnetically adsorbed on the top surface of the bottom plate 6. The detection mechanism 22 includes a detection rod 221, a support plate 222 and a positioning rod 223. The detection rod 221 is located directly below the screening hole 8. The upper end of the detection rod 221 is located inside the screening hole 8.

[0036] First Embodiment: The annular metal parts to be detected are loaded from the feeding mechanism 4. The metal parts are placed inside the feeding mechanism 4 and slide down obliquely into the distribution mechanism 3, such that the distribution slots 302 in the distribution mechanism 3 guide the metal parts to slide down obliquely. When the vertically rolling metal parts touch the adjusting mechanism 5, they are elastically pushed by the adjusting strip 52, causing the vertically rolling metal parts to tilt and slide down, and the metal parts sliding out of the distribution mechanism 3 press against the guide slots 2 of the guide frame 1 and slide down one by one obliquely. Keep the vibration mechanism 25 activated, such that the motor 252 drives the cam 253 to rotate, and continuously pushes and drives the guide frame 1 to vibrate up and down. When the lowermost metal part slides into the arc groove 9, when the outer surface of the metal part meets the diameter requirement of the screening hole 8, and the inner surface of the metal part is intact and fits the detection rod 221 in the detection mechanism 22, the annular metal part at this time presses against the detection rod 221 and slides down and drops out. When the annular metal part with defects on the outer side or inner side moves into the arc groove 9, due to shape deformation defects, the annular metal part cannot drop out, and the air pump 16 in operation continuously passes gas through the air pipe 17 into the first hole 13. As the defective metal part located in the arc groove 9 seals the outer end of the first hole 13, and the multiple groups of metal parts arranged obliquely in the guide frame 1 press against the lowermost metal part, the air fed into the first hole 13 cannot push the metal part and enter the second hole 14. The metal part entering the second hole 14 pushes the movable plug 19 to move, thereby compressing the first spring 21, and at the same time drives the movable rod 20 to move and contact the controller 15, causing the controller 15 to act and control the pushing mechanism 11 to act. The electric push rod 112 in the pushing mechanism 11 drives the push plate 113 to move horizontally and quickly along the first groove 10, and laterally pushes out the lowermost defective metal part, causing the defective metal part to push the elastic blocking mechanism 30 open from the second groove 12, and causing the defective metal part to drop into the collection box 23. When the lowermost defective metal part is removed, the first hole 13 opens, and the internal air pressure quickly recovers, thereby releasing the control induction on the controller 15. At the same time, the pushing mechanism 11 resets, and the new metal parts naturally slide into the arc groove 9 and are rotationally screened. After screening, the defective metal parts are placed in the collection box 23, and the qualified metal parts are all sleeved on the detection rod 221 of the detection mechanism 22, completing automatic palletizing and sleeving.

[0037] First, by using the feeding mechanism 4 and cooperating with the distribution mechanism 3, a large number of metal parts are distributed into each group of guide frames 1. Then, in cooperation with the adjusting mechanism 5 and the vibrating mechanism 25, the metal parts slide horizontally along the guide groove 2 and fall into the arc groove 9. With the screening holes 8 on one side of the arc groove 9 and the detection rods 221 in the screening holes 8, when the inner and outer surfaces of the ring-shaped metal parts are intact and meet the specifications, they slide along the detection rods 221 and are sleeved into the inside of the detection rods 221, while the defective products cannot fit and fall out in the arc groove 9. At the same time, as the static defective products continuously seal the first hole 13, the amount of air pumped into the first hole 13 increases and pushes the movable rod 20 in the second hole 14 to move horizontally. The horizontally moved movable rod 20 touches the controller 15 and causes the pushing mechanism 11 to act. The pushing mechanism 11 pushes the defective products out to the collection box 23 from one side. In fact, it has a good screening effect on metal parts with defects on the inner and outer surfaces, greatly improving the actual screening effect, avoiding the ring-shaped metal parts with deformed inner walls being screened as qualified products, and there is no need for subsequent re-screening steps. The screening effect is good and the processing efficiency is high.

[0038] In addition, by using the detection mechanism 22 magnetically fixed on the top surface of the bottom plate 6 and cooperating with the detection rods 221 on the detection mechanism 22, during the screening process, the qualified ring-shaped metal parts automatically fall and are sleeved on the outer surface of the detection rods 221. When the screening is completed, a large number of qualified ring-shaped metal parts are automatically stacked and sleeved on the detection rods 221. And with the detection mechanism 22 fixed by adsorption, it is convenient to take out and transfer the stacked and sleeved metal parts. In fact, the stacking and sorting are automatically completed during the screening, reducing the subsequent sorting steps, reducing the process and greatly improving the actual screening efficiency at the same time. The use effect is good.

[0039] Such as Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 、 Figure 8 、 Figure 9 、 Figure 10 and 12As shown in the figure, the detection rod 221 is fixedly connected to the top surface of the support plate 222, and the positioning rod 223 is fixedly connected to the bottom surface of the support plate 222. The material pushing mechanism 11 includes a mounting frame 111, an electric push rod 112 and a push plate 113. The mounting frame 111 is fixedly connected to the side surface of the material guiding frame 1. The electric push rod 112 is fixedly installed inside the mounting frame 111. The push plate 113 is fixedly connected to the end surface of the electric push rod 112. The push plate 113 is movably sleeved in the first groove 10. The blocking mechanism 30 includes a fixing plate 3001, a fixing shaft 3002, a movable tube 3003, a torsion spring 3004 and a curved rod 3005. The number of the fixing plates 3001 is two. The two fixing plates 3001 are fixedly connected to the upper and lower surfaces of the material guiding frame 1. The fixing shaft 3002 is fixedly connected between the two fixing plates 3001. The movable tube 3003 is movably sleeved on the outer surface of the fixing shaft 3002. The curved rod 3005 is fixedly connected to the outer surface of the movable tube 3003. The torsion spring 3004 is fixedly connected between the movable tube 3003 and the fixing plate 3001. The curved rod 3005 is located inside the second groove 12. The curved rod 3005 can drive the movable tube 3003 to rotate along the fixing shaft 3002, and cooperate with the elastic action of the torsion spring 3004 to automatically reset after the material pushing is completed, and make the curved rod 3005 reset to the second groove 12 to limit the metal parts. The first groove 10 and the second groove 12 are both communicated with the material guiding groove 2. The first groove 10 and the second groove 12 are symmetrically distributed on the left and right sides of the screening hole 8.

[0040] During the use process, the qualified ring-shaped metal parts are sleeved and stacked by the detection rod 221. And by controlling the diameter of the detection rod 221 and the size of the screening hole 8, the products with qualified inner and outer sides are screened out and sleeved on the detection rod 221. And when the controller 15 receives the control signal, the electric push rod 112 in the material pushing mechanism 11 is powered on and started, and the defective products are quickly pushed out to complete the separation and discharging. The blocking mechanism 30 is used to limit the metal parts that naturally slide to the bottom of the material guiding groove 2 to prevent them from sliding out from the second groove 12. The first groove 10 and the second groove 12 located on both sides of the screening hole 8 ensure that the metal parts are smoothly pushed out from the second groove 12.

[0041] As Figure 1 、 Figure 2 and Figure 10As shown in the figure, the top surface of the bottom plate 6 is respectively provided with a bottom groove 27 and a bottom hole 28. The top plate of the bottom plate 6 is provided with a collection box 23. The collection box 23 is located in the bottom groove 27. The top surface of the collection box 23 is fixedly connected with a baffle 26. The collection box 23 is located on one side of the second groove 12. The inner surface of a magnetic ring 29 is fixedly sleeved inside the bottom hole 28. The inner surface of the magnetic ring 29 is movably sleeved with a positioning rod 223. The top surface of the magnetic ring 29 is magnetically adsorbed to a support plate 222. A vibration mechanism 25 is fixedly installed on the top surface of the bottom plate 6. The vibration mechanism 25 includes a motor bracket 251, a motor 252 and a cam 253. The motor bracket 251 is fixedly installed on the top surface of the bottom plate 6. The motor 252 is fixedly installed on the top surface of the motor bracket 251. The cam 253 is fixedly sleeved on the output shaft of the motor 252. The buffer mechanism 7 includes a fixed tube 71, a sleeve rod 72 and a second spring 73. The fixed tube 71 is fixedly connected to the top surface of the bottom plate 6. The second spring 73 is located inside the fixed tube 71 and is fixedly connected to the top surface of the bottom plate 6. The sleeve rod 72 is movably sleeved inside the fixed tube 71 and is fixedly connected to the second spring 73. There are two groups of buffer mechanisms 7 on the left and right. The sleeve rod 72 in one group of buffer mechanisms 7 is fixedly connected to the feeding mechanism 4. The sleeve rod 72 of the other group of buffer mechanisms 7 is fixedly connected to a connecting plate 24. The connecting plate 24 is fixedly connected to the bottom surface of the material guiding frame 1. By using a total of three buffer mechanisms 7 in the front and back for buffering, elastic buffering during the vibration process is realized. Cooperating with the intermittent pushing in the vibration mechanism 25, it vibrates repeatedly under the elasticity of the second spring 73, avoiding jamming of metal parts.

[0042] During the use process, through the bottom groove 27 on the bottom plate 6, the collection box 23 is stably placed, and the vibration mechanism 25 intermittently pushes the connecting plate 24 through the rotation of the cam 253, thereby realizing the vibration of the material guiding frame 1 and the distribution mechanism 3.

[0043] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown in the figure, the distribution mechanism 3 includes a distribution plate 301, a distribution groove 302, a first guide plate 303 and a second guide plate 304. The lower end of the distribution plate 301 is fixedly connected to the upper end of the material guiding frame 1. The distribution groove 302 is opened on the top surface of the distribution plate 301 and is communicated with the material guiding groove 2. Both the first guide plate 303 and the second guide plate 304 are fixedly connected to the upper end of the distribution plate 301. The second guide plate 304 is located on both sides of the first guide plate 303. The first guide plate 303 and the distribution groove 302 are alternately distributed. The adjusting mechanism 5 includes a fixing frame 51 and an adjusting strip 52. The fixing frame 51 is fixedly connected to the top surface of the distribution plate 301. The fixing frame 51 is located above the distribution groove 302. The adjusting strip 52 is fixedly connected inside the fixing frame 51. The adjusting strip 52 is an elastic strip and is located inside the distribution groove 302. The feeding mechanism 4 includes an upper plate 401, a lower plate 402, an intermediate plate 403 and a feeding port 404. Both the upper plate 401 and the lower plate 402 are fixedly connected to the upper end of the distribution plate 301. The upper plate 401 and the lower plate 402 are respectively located on the upper and lower sides of the first guide plate 303. The intermediate plate 403 is fixedly connected between the upper plate 401 and the lower plate 402. The feeding port 404 is opened on the top surface of the upper plate 401.

[0044] During the use process, the metal parts are divided into multiple groups by using multiple groups of distribution grooves 302 in the distribution mechanism 3, and are respectively guided to slide down. And by using the elastic adjusting strip 52, the vertically moving metal parts are blocked when touching the adjusting strip 52, and are flipped under the action of inertia and gravity to ensure that the metal parts slide down lying horizontally. The feeding is completed through the feeding port 404 in the feeding mechanism 4. Among them, the first guide plate 303 and the second guide plate 304 guide the parts to slide into the distribution groove 302.

[0045] Second Embodiment: When screening annular metal parts with different inner hole diameters, by replacing the detection rod 221 in the detection mechanism 22 with different diameters, and magnetically adsorbing and positioning the replaced detection mechanism 22 directly below the screening hole 8, the screening of annular metal parts with different inner hole diameters is completed.

[0046] First, the detection mechanism 22 is adsorbed and fixed through the magnetic ring 29 at the bottom, and in cooperation with the positioning rod 223 in the detection mechanism 22, the positioning rod 223 is sleeved in the magnetic ring 29 to complete accurate positioning and adsorption. And when it is necessary to adapt to annular metal parts with different inner hole diameters, by directly replacing the detection mechanism 22 with a detection rod 221 of different diameters, the replacement and adjustment can be realized, and the screening of annular metal parts of different specifications can be adapted, greatly improving the actual use range and having good use effect.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Metal part screening machine, comprising a material guiding frame (1) and a bottom plate (6), Characterized in that: A material guiding groove (2) is provided inside the material guiding frame (1), the upper end of the material guiding frame (1) is fixedly communicated with a distribution mechanism (3), the upper end of the distribution mechanism (3) is fixedly communicated with a feeding mechanism (4), an adjusting mechanism (5) is fixedly installed on the top of the distribution mechanism (3), a screening hole (8) communicated with the material guiding groove (2) is provided on the bottom surface of the material guiding frame (1), a buffer mechanism (7) is provided between the material guiding frame (1) and the bottom plate (6), an arc groove (9) communicated with the material guiding groove (2) is provided on the top surface of the material guiding frame (1), a first groove (10) and a second groove (12) are respectively provided on the two side surfaces of the material guiding frame (1), a pushing mechanism (11) and a blocking mechanism (30) are respectively fixedly installed on the two side surfaces of the material guiding frame (1), a first hole (13) and a second hole (14) are respectively provided inside the lower end of the material guiding frame (1), a controller (15) is provided on the side surface of the material guiding frame (1), the inner end of the controller (15) is fixedly sleeved in the second hole (14), an air pump (16) is fixedly connected to the top of the material guiding frame (1), an air pipe (17) is fixedly communicated with the side surface of the air pump (16), the lower end of the air pipe (17) is communicated with the first hole (13), a fixing ring (18) is fixedly sleeved inside the second hole (14), a movable rod (20) is movably sleeved on the inner surface of the fixing ring (18), the inner end of the movable rod (20) is fixedly connected with a movable plug (19), the movable plug (19) is located inside the second hole (14), a first spring (21) is fixedly connected between the movable plug (19) and the fixing ring (18), a detection mechanism (22) is magnetically adsorbed on the top surface of the bottom plate (6), the detection mechanism (22) comprises a detection rod (221), a support plate (222) and a positioning rod (223), the detection rod (221) is located directly below the screening hole (8), and the upper end of the detection rod (221) is located inside the screening hole (8). When the amount of air pumped into the first hole (13) increases, it pushes the movable rod (20) in the second hole (14) to move horizontally. The horizontally moved movable rod (20) is used to touch the controller (15). The controller (15) receives the control signal and makes the pushing mechanism (11) start to be energized. The defective products are pushed out to the collection box (23) from one side by the pushing mechanism (11).

2. The metal part screening machine according to claim 1, Characterized in that: The detection rod (221) is fixedly connected to the top surface of the support plate (222), and the positioning rod (223) is fixedly connected to the bottom surface of the support plate (222).

3. The metal part screening machine according to claim 1, Characterized in that: The material pushing mechanism (11) includes a mounting frame (111), an electric push rod (112) and a push plate (113). The mounting frame (111) is fixedly connected to the side surface of the material guiding frame (1). The electric push rod (112) is fixedly installed inside the mounting frame (111). The push plate (113) is fixedly connected to the end surface of the electric push rod (112). The push plate (113) is movably sleeved in the first groove (10).

4. The metal part screening machine according to claim 1, characterized in that: The blocking mechanism (30) includes a fixing plate (3001), a fixing shaft (3002), a movable tube (3003), a torsion spring (3004) and a curved rod (3005). The number of the fixing plates (3001) is two. The two fixing plates (3001) are fixedly connected to the upper and lower surfaces of the material guiding frame (1). The fixing shaft (3002) is fixedly connected between the two fixing plates (3001). The movable tube (3003) is movably sleeved on the outer surface of the fixing shaft (3002). The curved rod (3005) is fixedly connected to the outer surface of the movable tube (3003). The torsion spring (3004) is fixedly connected between the movable tube (3003) and the fixing plate (3001). The curved rod (3005) is located inside the second groove (12).

5. The metal part screening machine according to claim 1, characterized in that: Both the first groove (10) and the second groove (12) are communicated with the material guiding groove (2). The first groove (10) and the second groove (12) are symmetrically distributed on the left and right sides of the screening hole (8).

6. The metal part screening machine according to claim 1, characterized in that: The top surface of the bottom plate (6) is respectively provided with a bottom groove (27) and a bottom hole (28). A collection box (23) is provided on the top plate of the bottom plate (6). The collection box (23) is located in the bottom groove (27). A baffle (26) is fixedly connected to the top surface of the collection box (23). The collection box (23) is located on one side of the second groove (12). A magnetic ring (29) is fixedly sleeved inside the bottom hole (28). The inner surface of the magnetic ring (29) is movably sleeved with a positioning rod (223). The top surface of the magnetic ring (29) is magnetically adsorbed to the support plate (222).

7. The metal part screening machine according to claim 1, characterized in that: A vibration mechanism (25) is fixedly installed on the top surface of the bottom plate (6). The vibration mechanism (25) includes a motor frame (251), a motor (252) and a cam (253). The motor frame (251) is fixedly installed on the top surface of the bottom plate (6). The motor (252) is fixedly installed on the top surface of the motor frame (251). The cam (253) is fixedly sleeved on the output shaft of the motor (252).

8. The metal part screening machine according to claim 1, characterized in that: The buffer mechanism (7) includes a fixed pipe (71), a sleeve rod (72) and a second spring (73). The fixed pipe (71) is fixedly connected to the top surface of the bottom plate (6). The second spring (73) is located inside the fixed pipe (71) and is fixedly connected to the top surface of the bottom plate (6). The sleeve rod (72) is movably sleeved inside the fixed pipe (71) and is fixedly connected to the second spring (73). There are two sets of buffer mechanisms (7) on the left and right. The sleeve rod (72) in one set of buffer mechanisms (7) is fixedly connected to the feeding mechanism (4), and the sleeve rod (72) of the other set of buffer mechanisms (7) is fixedly connected to a connecting plate (24). The connecting plate (24) is fixedly connected to the bottom surface of the material guiding frame (1).

9. The metal part screening machine according to claim 1, characterized in that: The distribution mechanism (3) includes a distribution plate (301), a distribution groove (302), a first guiding plate (303) and a second guiding plate (304). The lower end of the distribution plate (301) is fixedly connected to the upper end of the material guiding frame (1). The distribution groove (302) is opened on the top surface of the distribution plate (301) and is communicated with the material guiding groove (2). The first guiding plate (303) and the second guiding plate (304) are both fixedly connected to the upper end of the distribution plate (301). The second guiding plate (304) is located on both sides of the first guiding plate (303). The first guiding plate (303) and the distribution groove (302) are alternately distributed. The adjusting mechanism (5) includes a fixing frame (51) and an adjusting strip (52). The fixing frame (51) is fixedly connected to the top surface of the distribution plate (301). The fixing frame (51) is located above the distribution groove (302). The adjusting strip (52) is fixedly connected inside the fixing frame (51). The adjusting strip (52) is an elastic strip and is located inside the distribution groove (302).

10. The metal part screening machine according to claim 1, characterized in that: The feeding mechanism (4) includes an upper plate (401), a lower plate (402), an intermediate plate (403) and a feeding port (404). The upper plate (401) and the lower plate (402) are both fixedly connected to the upper end of the distribution plate (301). The upper plate (401) and the lower plate (402) are respectively located above and below the first guiding plate (303). The intermediate plate (403) is fixedly connected between the upper plate (401) and the lower plate (402). The feeding port (404) is opened on the top surface of the upper plate (401).

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