TWM566641U - Grinding and screening equipment - Google Patents

Abstract

The present invention relates to a grinding and screening device. After the material is ground by the grinding device, it flows into the buffer hopper through the first outlet for temporary storage, and then the transport mechanism drives the transport box to transport the material in the buffer hopper to the screening tank. The screening device separates and filters the materials with different particle sizes. Since the transport mechanism can drive the transport box to move back and forth between the second outlet and the screening tank, the transport box receives the material from the second outlet and dumps the received material into the screening tank. In the middle, the material box intermittently dumps the materials in the screening tank so that the materials do not accumulate in the screening tank, so the materials can be more easily dispersed in the screening tank, and the materials can be more completely separated. filter.

Description

Grinding and screening equipment

This creation is about a grinding and screening equipment, in particular for equipment for grinding and screening solid particulate materials.

In industrial processing and production, it is often necessary to grind the processed workpiece. For the grinding of small-sized workpieces, it is often necessary to mix the workpiece to be ground with the abrasive during the grinding operation and place it in the grinding device for grinding and grinding. The device can be vibrated. For example, the workpiece to be ground can be mixed with the abrasive into the grinding hopper of the grinding device, and the vibration turret is used to drive the grinding hopper to vibrate. The workpiece to be ground and the abrasive in the grinding hopper are mutually By rubbing, the abrasive can smooth the workpiece to be polished. The pull tab is a component attached to the drive sleeve of the zipper. When the zipper is opened or closed, the pull tab is pinched by fingers and pulled along the length of the zipper to pull or pull the zipper. The pull piece can be made by metal casting. As shown in FIG. 1 , when the pull piece 1 is cast by the mold, a plurality of molten liquid cavities are arranged around the casting cavity of the pull piece 1 , and the molten liquid cavity and the pull piece 1 are The casting cavity is connected to each other. After the molten metal is solidified, the molten metal in the molten cavity solidifies into the metal particles 2, and the metal particles 2 are connected with the pull tab 1 when the pull tab 1 needs to be taken out. The tab 1 can be pulled out of the mold by holding the metal particles 2. After the drawing of the pull tab 1 is completed, the metal particles 2 connected around the pull tab 1 need to be separated from the pull tab 1 , and the burrs on the split surface of the pull tab 1 need to be removed and smoothed, and the pull tab 1 and the metal can be pulled. The particles 2 are placed in a grinding device for grinding, and the metal particles 2 correspond to an abrasive. In the grinding device, the pull tab 1 is mixed with the metal particles 2 and rubbed and moved with each other, and the burrs on the pull tab 1 can be polished and removed. The pull tab 1 becomes smooth. In the above grinding operation, after the abrasive material is ground, the abrasive material needs to be separated from the ground workpiece. At this time, screening equipment is needed, in order to enable the grinding operation and the screening operation to be continuously performed, The abrasive and the ground workpiece in the grinding equipment are poured together in a screening device for screening, and the screening device separates the abrasive from the ground workpiece. For example, in the Chinese patent application CN 203901079 U, a button polishing system is disclosed, which is used for the polishing of buttons, and receives the mixture of the ground workpiece and the abrasive material from the grinding device by the cutting vehicle, and via the horizontal rail. Move to the screening device and pour the mixture into a screening device for screening. This mode of operation has the following drawbacks: 1) The mixture of the material that is dumped into the screening device each time is too much, and the mixture will accumulate in the screening device and is not easily dispersed, resulting in the mixture being unable to be completely separated. 2) Due to the excessive amount of mixture accumulated on the sieve, the burden of the sieve will be very large. Each time the material is dumped, the mixture will cause an impact on the sieve, which will cause the sieve to be easily worn and cause The life of the distributor is reduced. 3) The unloading cart must be lower than the exit of the grinding equipment, and the sorting device must be lower than the unloading cart. This layout causes the height of the whole equipment to be high, and the grinding equipment is at the highest position, which is not conducive to the operator monitoring the grinding equipment. And the operation is also not conducive to the input of the material to be ground and the abrasive to the grinding equipment.

In order to solve the deficiencies in the prior art, the present invention provides a grinding and screening apparatus capable of grinding granular materials and more thoroughly screening and separating granular materials having different particle sizes. In order to achieve the above object and related purposes, the grinding and screening apparatus of the present invention adopts the following technical solutions: a grinding and screening apparatus comprising a grinding apparatus having an abrasive hopper, a screening apparatus having a screening tank, and a control device, the grinding hopper being at the bottom a first outlet is disposed, a buffer hopper is disposed below the first outlet, the buffer hopper is provided with a second outlet at the bottom, and further includes a transport mechanism connected to the control device, and the transport mechanism is connected with a top open transport box The transport mechanism can drive the transport box to move back and forth between the second outlet and the screening tank, the transport box receives the material from the second outlet and dumps the received material into the screening tank; the transport mechanism includes a column. The column is provided with a lifting frame, the transportation box is rotatably connected to the lifting frame, and a blocking pin is connected to the transportation box; the sliding column is provided with a sliding slot, and the lifting frame is moved upward to enable the locking pin to be self-sliding The lower end enters the chute, and the chute moves the stop pin to drive the transport box to tilt toward the screening slot. In the above technical solution, the material is ground by the grinding device and then flows into the buffer hopper through the first outlet for temporary storage, and then the transport mechanism drives the transport box to transport the material in the buffer hopper to the screening tank, and the screening device will have different granularity. The material is screened and separated, and the transport mechanism drives the transport box to move back and forth between the second outlet and the screening tank. The transport box receives the material from the second outlet and dumps the received material into the screening tank, and the transport box intermittently The material is transported to the screening tank and the material is poured into the screening tank so that the material does not accumulate in the screening tank, so the material can be separated and screened more easily and thoroughly. Preferably, the transport box dumps the material upstream of the screening tank, and the screening tank is provided with a feed screen upstream and downstream, the partition screen separating the screening tank into the first one above the split screen a discharge chamber and a second discharge chamber located below the distribution screen; a first discharge opening is arranged at the tail of the first discharge chamber; and a second discharge opening is provided at the tail of the second discharge chamber. Preferably, a buffer chute is arranged above the screening slot, the lower end of the buffer chute extends into the screening slot and is adjacent to the front end of the screening slot; the transport box dumps the material into the buffer chute and flows into the screening slot through the buffer chute. . Preferably, the first discharge opening is connected with a first discharge channel, the first discharge channel has a first discharge port at the end, and a material conveyor belt is disposed below the first discharge port, and the material conveyor belt is The side of the second discharge opening is connected with a second discharge channel, the second discharge channel has a second discharge opening at the end, and a receiving box is arranged below the second discharge opening. Preferably, an auxiliary hopper is further arranged beside the grinding hopper, an auxiliary discharge channel is connected to the bottom of the auxiliary hopper, an auxiliary discharge port is arranged at the end of the auxiliary discharge channel, and the auxiliary discharge port is located above the material conveying belt; The bottom surface of the two discharge chambers is further provided with a slag sifting screen, and the slag slag screen is provided with a slag discharge chamber at the bottom of the slag discharge chamber, and the slag discharge port is connected with a slag discharge passage connected with the first discharge passage. Preferably, the second outlet is connected to a discharge chute, and the transport mechanism can drive the transport box to move and align with the end opening of the discharge chute. Preferably, the lifting frame is provided with a rotating shaft and a limiting column; the transportation box is fixed on a connecting plate, and the connecting plate is connected to the rotating shaft; and a tension spring is further connected between the lifting frame and the connecting plate. The tension spring pulls the connecting plate and abuts the side of the connecting plate against the limiting post, so that the transport box keeps the opening upward; the fixing column is provided with a fixing plate on one side of the screening slot, the sliding slot It is disposed on the fixed plate, and the stop pin is disposed on the connecting plate. In addition, the connecting plate is located between the limiting post and the screening slot, and the lifting frame is provided with a first connecting post, the first connecting post and the limiting post are located on the same side of the connecting plate; the connecting plate further has a second connection The positions of the first connecting column, the second connecting column and the limiting column are higher than the position of the rotating shaft, and the two ends of the tension spring are respectively connected to the first connecting column and the second connecting column. In addition, the column is provided with a driving belt extending upward and downward and reciprocating, the lifting frame is fixed on the upper and lower extensions of the transmission belt; the column is further provided with a guide rail parallel to the transmission belt, and the lifting frame and the guide rail are slidingly matched. In addition, a material level sensor is further disposed on the transport box, and the material level sensor is connected to the control device. Based on the above technical solution, the grinding and screening device of the present invention has the following beneficial effects: the material is ground by the grinding device, flows into the buffer hopper through the first outlet, and is temporarily stored, and then the material conveying box drives the material in the buffer hopper. Transported to the screening tank, the screening equipment separates the materials with different particle sizes. Since the transport mechanism can drive the transport box to move back and forth between the second outlet and the screening tank, the transport box receives the material from the second outlet and will The received material is dumped in the screening tank, and the material transporting box intermittently dumps the material into the screening tank so that the material does not accumulate in the screening tank, so the material can be more easily dispersed in the screening tank, and the material can also be It is more thoroughly isolated and screened. Moreover, each time the amount of material poured into the screening tank is reasonable, the screening tank receives less impact and lighter burden, so the wear of the material on the screening tank can be reduced, and the service life of the screening tank can be improved. Thus, the present invention provides a grinding and screening apparatus capable of grinding particulate materials and more thoroughly screening and separating particulate materials having different particle sizes.

The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings. These implementations are for illustrative purposes only and are not intended to be limiting of the present invention. In the description of this creation, the terms "center", "vertical", "horizontal", "upper", "lower", "front", "back", "left", "right", "vertical" are required. Orientation or positional relationship of the indications such as "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or positional relationship shown in the drawings, for the convenience of describing the creation and simplifying the description. It is not intended or implied that the device or component referred to must have a particular orientation, is constructed and operated in a particular orientation, and therefore is not to be construed as a limitation. Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" should be understood broadly, and may be either a fixed connection or a detachable connection, unless otherwise explicitly stated and limited. Or integrally connected; can be mechanically connected or electrically connected; can be directly connected, or indirectly connected via an intermediate medium, and can be internal communication between the two components. For those of ordinary skill in the art, the specific meaning of the above terms in the present creation can be understood in specific circumstances. In addition, in the description of the present invention, "multiple" means two or more than two unless otherwise stated. In the following description, the view shown in FIG. 2 is taken as a front view of the grinding and screening apparatus of the present invention. When viewing FIG. 2, the direction perpendicular to the paper surface is the front direction, and the direction perpendicular to the paper surface is the rear direction; FIG. 3 is 3 is a perspective view of the structure viewed from the front side of FIG. 2; FIG. 4 is a perspective view of the rear view from the rear side of FIG. 2; FIG. 5 is a view of the filter groove and the buffer chute viewed from the rear side of FIG. FIG. 6 is a structural view of members such as a column, a transport box, a buffer hopper, and the like viewed from the left side of FIG. 2; FIG. 7, FIG. 8, FIG. 9, FIG. 10, and FIG. A structural view of components such as a column, a lifting frame, a transport box, and a fixing plate as viewed from the front side of FIG. 2; and FIG. 12 is a perspective view of a member such as a column and a lifting frame viewed from the front side of FIG. As shown in FIG. 2 and FIG. 3, the grinding and screening apparatus of the present invention comprises a grinding device 3 having an abrasive hopper 4, a screening device 9 having a screening tank 10, a control device installed in the control cabinet, and a control cabinet. The structure can be set according to the actual situation, the control cabinet is not shown in the figure; the first outlet 7 is provided at the bottom of the grinding hopper 4, a buffer hopper 5 is arranged below the first outlet 7, and the buffer hopper 5 is provided with a second outlet at the bottom. 8; after the material is sufficiently ground in the grinding hopper 4, it flows from the first outlet 7 into the buffer hopper 5 for temporary storage; the grinding and screening device of the present invention further includes a conveying mechanism connected to the control device, and the conveying mechanism is connected with a The top opening of the transport box 17, the transport mechanism can drive the transport box 17 to move back and forth between the second outlet 8 and the screening tank 10, the transport box 17 receives the material from the second outlet 8 and dumps the received material Screening tank 10. In the grinding and screening apparatus of the present invention, the material is ground by the grinding device 3 and then flows into the buffer hopper 5 through the first outlet 7 for temporary storage, and then the transporting mechanism drives the transport box 17 to transport the materials in the buffer hopper 5 to the material. In the screening tank 10, the materials with different particle sizes are separated and screened, and the transport mechanism drives the transport box 17 to move back and forth between the second outlet 8 and the screening tank 10. The transport box 17 receives the material from the second outlet 8 and receives the material. The material is poured into the screening tank 10, and the transport box 17 intermittently dumps the material into the screening tank 10 so that the material does not accumulate in the screening tank 10, so that the material can be separated and screened more easily and thoroughly. Moreover, each time the amount of material poured into the screening tank 10 is reasonable, the screening tank 10 receives less impact and is lighter in burden, so that the wear of the material on the screening tank 10 can be reduced, and the service life of the screening tank 10 can be improved. In the grinding and screening apparatus of the present invention, the transport mechanism can drive the transport box 17 to move back and forth between the second outlet 8 and the screening tank 10, and the transport box 17 receives the material from the second outlet 8 and dumps the received material. In a screening tank 10; as a preferred embodiment, please refer to FIG. 7 to FIG. 10, the transport mechanism includes a column 38, and the column 38 is provided with a lifting frame 39, and the transport box 17 is rotatably connected to the lifting frame. On the 39, the loading box 17 is connected with a stop pin 19; the column 38 is provided with a sliding slot 45, and the upward movement of the lifting frame 39 enables the blocking pin 19 to enter the sliding slot 45 from the lower end of the sliding slot 45. The movable pin 19 thus drives the transport box 17 to tilt toward the screening slot 10. In the grinding and screening apparatus of the present invention, the transport box 17 can receive the material from the second outlet 8 and dump the received material into the screening tank 10; as a preferred implementation, please refer to FIG. 7 to FIG. 39 is provided with a rotating shaft 40 and a limiting column 41; the transport box 17 is fixed on a connecting plate 18, the blocking pin 19 is disposed on the connecting plate 18, and the connecting plate 18 is connected to the rotating shaft 40; the lifting frame 39 Further connected with the connecting plate 18 is a tension spring 42. The tension spring 42 tensions the connecting plate 18 and abuts the side of the connecting plate 18 against the limiting post 41 so that the transport box 17 keeps the opening upward. A fixing plate 44 is disposed on one side of the column 38 adjacent to the screening slot 10. The sliding slot 45 is obliquely disposed on the fixing plate 44. The upward movement of the lifting frame 39 enables the blocking pin 19 to enter the sliding slot 45 from the lower end of the sliding slot 45. The chute 45 plucks the stop pin 19 to drive the connecting plate 18 to rotate with the transport box 17 about the rotating shaft 40 and to tilt toward the screening slot 10. The lifting frame 39 can drive the transport box 17 to move down the column 38 to the buffer hopper 5 to receive material from the second outlet 8, and then drive the transport box 17 upward to move above the screening slot 10, and utilize the fixing plate 44. The upper chute 45 toggles the stop pin 19 on the connecting plate 18 to tilt the transport box 17 toward the screening tank 10, thereby dumping the material in the transport box 17 into the screening tank 10; then the lifting frame 39 is again driven The cartridge 17 is moved downward to again receive material from the buffer hopper 5 and transported into the screening tank 10, thus reciprocating. The lifting frame 39 can be used to move the transport box 17 to the second outlet 8 at a lower position to receive the material, and then the lifting frame 39 is raised above the opening of the higher-level screening tank 10 and dumps the material into the screening tank 10. Therefore, the buffer hopper 5 or the grinding hopper 4 does not have to be higher than the opening of the screening tank 10, which greatly reduces the height requirement of the grinding hopper 4. The position of the grinding hopper 4 and the buffer hopper 5 does not have to be too high, and the operator can conveniently feed the grinding hopper. 4 into the material to be ground. As shown in FIG. 7 and FIG. 8, the transport box 17 is moved to the lower end of the chute 45 on the fixed plate 44 as the retaining pin 19 ascending to the connecting plate 18 moves with the lifting frame 39. At this time, the tension spring 42 is Pre-stretching, the tension spring 42 tensions the connecting plate 18 and abuts the side of the connecting plate 18 against the limiting post 41, and the transport box 17 keeps the opening upward; the lifting frame 39 continues to move upward, the pin 19 moves along the chute 45 in the chute 45. The upper end of the chute 45 is inclined toward the screening slot 10. The chute 45 slid the stopper pin 19 to rotate the connecting plate 18 and the cartridge together around the rotating shaft 40 and toward the screening slot 10. Tilting, while the tension spring 42 is further stretched, and finally the transport box 17 is turned over to the state shown in FIG. 9, and the material in the transport box 17 is poured into the screening tank 10, as shown in FIG. The stop pin 19 has moved to a position close to the upper end of the chute 45. After the material in the transport box 17 is dumped, the control device controls the lifting frame 39 to move downward, and at the same time, the chute 45 pushes the stop pin 19 to return the transport box 17 to the state in which the opening is upward, and the pin 19 is completely closed. When the chute 45 is withdrawn, the connecting plate 18 is pulled by the tension spring 42 against the limit post 41, so that the transport box 17 is kept open upward. In order to facilitate the connection of the tension spring 42 between the lifting frame 39 and the connecting plate 18, the tension spring 42 can tighten the connecting plate 18 and abut against the limiting post 41, preferably, as shown in FIG. The connecting plate 18 is located between the limiting post 41 and the screening slot 10 (refer to the view of FIG. 8 , the screening slot 10 is located on the right side of the fixing plate 44 , and the screening slot 10 is not shown in FIG. 8 ). A first connecting post 43 is disposed. The first connecting post 43 and the limiting post 41 are located on the same side of the connecting plate 18; the connecting plate 18 is further provided with a second connecting post 20, and the connecting plate 18 abuts against the limiting post 41. The position of the first connecting post 43, the second connecting post 20 and the limiting post 41 is higher than the position of the rotating shaft 40. The two ends of the tensioning spring 42 are respectively connected to the first connecting post 43 and the second connecting On column 20. Thus, the tension spring 42 tensions the connecting plate 18 and causes the connecting plate 18 to abut against the limiting post 41, so that the transport box 17 maintains the opening upward. In order to allow the stopper pin 19 to smoothly move in the chute 45, as shown in Fig. 11, a roller 21 can be attached to the stopper pin 19. The roller 21 is in rolling engagement with the chute 45, so that the stopper pin 19 moves smoothly in the chute. In order to facilitate the driving up and down movement of the lifting frame 39, as a preferred embodiment, as shown in FIG. 12, the column 38 is provided with a driving belt 46 extending up and down and reciprocatingly. The lifting frame 39 is fixed on the upper and lower extensions of the belt 46. The belt 53 is clamped from both sides of the belt 46 by the first clamping block 48 and the second clamping block 49, and the lifting frame 39 is fixed to the second clamping block 49; the column 38 is further provided parallel to the belt 46. The guide rail 47, the lifting frame 39 is slidably engaged with the guide rail 47; thus, the reciprocating movement of the transmission belt 46 can drive the lifting frame 39 to reciprocate up and down, and the lifting frame 39 and the guide rail 47 cooperate to keep the lifting frame 39 moving smoothly, and can be reciprocated by the motor driving transmission belt 46. motion. In the grinding and screening apparatus of the present invention, the transport box transports the material from the buffer hopper to the screening tank. In order to facilitate the control of the quantity of the material transported to the screening tank each time, the transport box 17 is preferably Further, a material level sensor is further disposed, and the material level sensor is connected to the control device, and the material level sensor is capable of detecting the quantity of materials loaded in the transport box 17 when loaded in the transport box 17. When the material reaches the set amount, the transport box 17 stops receiving material from the second outlet 8, and is moved by the transport mechanism to the screening tank 10 to dump the material into the screening tank 10. In the grinding and screening apparatus of the present invention, the grinding hopper 4 can be driven by a vibration motor, and the vibration motor is used to drive the grinding hopper 4 to vibrate to roll and rub the material in the grinding hopper 4, thereby smoothing the material to be polished. In the embodiment in which the grinding and screening apparatus of the present invention is applied to the pull tab 1 and the metal particles 2 shown in FIG. 1, the pull tab 1 and the metal particles 2 are put together into the grinding hopper 4, and the pull tab 1 and the metal pellet 2 are The abrasive hoppers 4 rub against each other, and the metal particles 2 correspond to the abrasive, and the handle 1 is smoothed. In the subsequent screening operation, the pull tab 1, the metal particles 2, and the metal scrap generated by the grinding are transported by the transport box 17 to the screening tank 10 for separation and screening. As shown in FIG. 4 and FIG. 5, as a preferred embodiment, the transport box 17 dumps the material upstream of the screening tank 10, and the screening tank 10 is provided with a sorting screen 11 upstream and downstream. The sieve 11 divides the screening tank 10 into a first discharge chamber 13 above the distribution screen 11 and a second discharge chamber 14 below the distribution screen 11; the first discharge chamber 13 has a first row at the tail The nozzle 15 is provided with a second discharge opening 16 at the tail of the second discharge chamber 14. The material sieve 11 screens the material, and the material with smaller particle size falls into the second discharge chamber 14 through the gap of the material sieve 11, and the material with larger particle size remains on the upper surface of the material sieve 11, and the material is divided. The screen 11 is driven by the driving mechanism to generate a vibrating motion. Since the upstream of the dividing screen 11 is higher than the downstream, when the dividing screen 11 vibrates, the material remaining on the upper surface of the dividing screen 11 slides downstream from the upstream of the screening tank 10. And discharged from the first discharge port 15 at the end of the first discharge chamber 13. In the embodiment in which the grinding and screening apparatus of the present invention is applied to the pull tab 1 and the metal particles 2 shown in FIG. 1, the pull tab 1 and the metal scraps fall into the second discharge chamber 14 from the gap of the split screen 11 The metal particles 2 remain on the upper surface of the divided sieve 11. As shown in FIG. 4 and FIG. 5, in order to prevent an excessive impact on the materializing screen 11 when the material flows into the screening tank 10 from the transport box 17, a buffer chute 12 may be disposed above the screening tank 10. The lower end of the buffer chute 12 extends into the screening slot 10 and is adjacent to the front end of the screening slot 10; the transport box 17 dumps the material into the buffer chute 12 and flows into the screening tank 10 via the buffer chute 12. In this way, the material in the transport box 17 flows into the screening tank 10 via the buffer chute 12, which slows down the moving speed of the material, thereby preventing the material in the transport box 17 from directly impacting the sorting screen 11, causing a larger impact on the dividing screen 11. The wear increases the service life of the split screen 11 . The material remaining on the upper surface of the divided screen 11 is discharged from the tail portion of the first discharge chamber 13, and in order to facilitate the transfer of the material discharged from the first discharge chamber 13, as a preferred mode, as shown in Figs. 4 and 5 The first discharge opening 15 is connected with a first discharge passage 22, and the first discharge passage 22 has a first discharge opening 25 at the end thereof, and a material conveying belt 24 is disposed below the first discharge opening 25. A material baffle is provided on both sides of the material conveying belt 24. In order to facilitate the discharge of material from the first discharge channel 22, the first discharge channel 22 should be disposed in an inclined form with a lower end than the first discharge port, and the material in the first discharge chamber 13 is passed through the first discharge port 25. The first discharge channel 22 flows onto the material conveyor belt 24 and is transported elsewhere by the material conveyor belt 24. In the embodiment in which the grinding and screening apparatus of the present invention is applied to the pull tab 1 and the metal particles 2 shown in FIG. 1, the metal particles 2 flow from the first discharge chamber 13 through the first discharge passage 22 to the material conveying belt 24. And it is transported to the melt channel (not shown) via the material conveying belt 24 to be melted again into a molten metal to cast the pull tab 1. In order to facilitate the discharge of the material falling into the second discharge chamber 14 below the distribution screen 11, preferably, the second discharge opening 16 is connected to the second discharge passage 23, and the end of the second discharge passage 23 A second discharge port 26 is provided, and a receiving box 30 is disposed below the second discharge port 26. In order to facilitate the discharge of material from the second discharge channel 23, the second discharge channel 23 should be arranged in an inclined form with a lower end than the second discharge port, and the material in the second discharge chamber 14 passes through the second discharge port 26 directly. It flows into the collection cassette 30 and is accommodated by the collection cassette 30. In the embodiment in which the grinding and screening apparatus of the present invention is applied to the pull tab 1 and the metal particles 2 shown in FIG. 1, the material in the second discharge chamber 14 is the pull tab 1, and the pull tab 1 has been polished smooth and The metal particles 2 are separated, and the product slides 1 directly flow into the receiving box 30 through the second discharge port 26. Before the material is poured into the grinding hopper 4, the material can be manually checked for eligibility. If it is unqualified, the material needs to be recycled. As a preferred embodiment, as shown in FIG. 3 and FIG. 4, an auxiliary hopper 31 may be disposed beside the grinding hopper 4. The auxiliary hopper 31 is connected with an auxiliary discharge channel 32 at the bottom thereof, and the auxiliary discharge channel 32 is provided at the end. The auxiliary discharge port 33, the auxiliary discharge port 33 is located above the material conveying belt 24; the unqualified material can be dumped into the auxiliary hopper 31 and flowed through the auxiliary discharge channel 32 to the material conveying belt 24, and transported by the material conveying belt 24 to elsewhere. In order to prevent the material from overflowing when the material is poured into the grinding hopper 4 or the auxiliary hopper 31, a detachable auxiliary funnel (not shown) may be provided on the opening of the auxiliary hopper 31 to introduce the material into the auxiliary hopper 31. The auxiliary funnel can also be detached from the auxiliary hopper 31 and mounted to the grinding hopper 4 to prevent material from overflowing from the opening of the grinding hopper 4 when the material is poured into the grinding hopper 4. In the embodiment in which the grinding and screening apparatus of the present invention is applied to the pull tab 1 and the metal particles 2 shown in FIG. 1, the unqualified material is transported to the melt channel by the material transfer belt 24 to be melted again into a molten metal to cast the pull tab 1 . Grinding of the material in the grinding hopper 4 produces grinding debris, and the mixture of grinding debris and material enters the buffer hopper 5 via the first outlet 7 and is transported by the transport box 17 into the screening tank 10, the grinding debris having a smaller particle size. , will fall into the second discharge chamber 14 via the split screen 11, as we wish to separate the grinding debris from the material in the second discharge chamber 14, as shown in Figure 5, in the second A slag screen 34 is disposed on the bottom surface of the discharge chamber 14, and a slag discharge chamber 35 is disposed below the slag screen 34. The bottom of the slag discharge chamber 35 is provided with a slag discharge port 36, and the slag discharge port 36 is connected to the first discharge passage 22. Slag discharge channel 37. The slag screen 34 can also be driven by a vibrating mechanism to cause the grinding debris to fall from the gap of the slag screen 34 into the slag discharge chamber 35 and flow through the slag discharge passage 37 to the material conveying belt 24 to be transported elsewhere. In the embodiment in which the grinding and screening apparatus of the present invention is applied to the pull tab 1 and the metal particles 2 shown in FIG. 1, the grinding debris is metal scrap, and the material transfer belt 24 discharges the metal scrap from the drain passage 37. It is transported to the melt channel to be melted again into a molten metal to cast the pull tab 1. In order to prevent the material or the grinding debris flowing into the material conveying belt 24 from the first discharge chamber 13, the slag chamber, and the auxiliary hopper 31 from sliding off the material conveying belt 24, as shown in Fig. 4, on the surface of the material conveying belt 24. A plurality of partitioning sheets 28 are disposed along the extending direction of the material conveying belt 24. The two ends of the partitioning piece 28 respectively extend to the baffle plates 27 on both sides of the material conveying belt 24, the baffle plate 27 is fixed, and the partitioning piece 28 is fixed on the material conveying belt. On the surface of the surface 24 and moving with the material conveying belt 24, a partitioning groove 29 is formed between the adjacent two separator sheets 28. As such, the material or abrasive debris is in the separation trough 29 without slipping off the material conveyor belt 24. In order to conveniently control the flow of material from the grinding hopper 4 into the buffer hopper 5, and to conveniently control the flow of material from the buffer hopper 5 into the transport box 17, as a preferred embodiment, the first outlet 7 is provided with a first sealing plate (Fig. Not shown), the first sealing plate is controlled by the control device to close or open the first outlet 7; the second outlet 8 is provided with a second sealing plate (not shown); the second sealing plate is controlled by The device controls to close or open the second outlet 8. Thus, when the grinding hopper 4 is grinding the material, the first sealing plate closes the first outlet 7 to prevent the unground material from entering the buffer hopper 5; when the material in the grinding hopper 4 is sufficiently ground, the control device controls the first The sealing plate is opened, and the material in the grinding hopper 4 is temporarily stored from the first outlet 7 into the buffer hopper 5; when the transport box 17 is moved to the second outlet 8, the control device controls the second sealing plate to open the second outlet 8. The material in the buffer hopper 5 flows from the second outlet 8 into the transport box 17. When the material level sensor on the transport box 17 detects that the material level in the transport box 17 has reached the set amount, the material level The sensor transmits a signal to the control device, the control device controls the second closure to close the second outlet 8, and the transport mechanism moves the magazine 17 to the screening tank 10 and dumps the material into the screening tank 10. The movement of the first sealing plate is controlled by the control device to control the flow of the material from the grinding hopper 4 into the buffer hopper 5. The movement of the second sealing plate is controlled by the control device to control the amount of material flowing from the buffering hopper 5 into the loading box 17, which can be reasonably Control the pace of production. In order to facilitate the flow of the material in the buffer hopper 5 into the transport box 17, preferably, as shown in FIG. 6, the second outlet 8 is connected with a discharge chute 6, which can drive the transport box 17 to move and The end opening of the discharge chute 6 is aligned. When the transport box 17 is moved to the slot of the discharge chute 6, the material in the buffer hopper 5 flows into the discharge chute 6 through the second outlet 8, and the discharge chute 6 is driven by the vibration motor to allow the material to flow into the feed. In the box 17, a material level sensor is mounted on the side of the transport box 17, and the material level sensor is connected with the control device. When the material height in the transport box 17 reaches a certain value, the material level sensor sends out to the control device. The signal causes the vibration motor that drives the discharge chute 6 to stop moving, and simultaneously sends a signal to the driving device of the lifting frame 39, the lifting frame 39 drives the transport box 17 to rise, and the material is poured over the screening tank 10 in the screening tank 10 in. The following is a description of the method for grinding and screening the pull tab 1 shown in FIG. 1 by using the grinding and screening device of the present invention. The operation method of the grinding and screening device of the present invention mainly includes the following steps: The grinding and screening equipment of the creation is started by the control device, the grinding device 3, the screening device 9 and the material conveying belt 24 start to operate; 2) when the production of the product to be ground is completed, the product is manually determined to be qualified; 3) determined by step 2 Thereafter, if the product fails, the unqualified product is poured into the auxiliary hopper 31, and the unqualified material in the auxiliary hopper 31 flows to the material conveying belt 24 through the auxiliary discharge channel 32, and is transported to the melt tunnel through the material conveying belt 24. 4) After the determination in step 2, if the product is qualified, the qualified material is poured into the grinding hopper 4; 5) after the qualified material in the grinding hopper 4 is ground, the control device controls the first sealing plate to be the first outlet 7 Opening, the material in the grinding hopper 4 enters the buffer hopper 5; at this time, the material includes the pull tab 1, the metal particles 2 and the grinding debris; 6) all the materials in the grinding hopper 4 enter After the buffer hopper 5, the control device controls the first sealing plate to close the first outlet 7; 7) the control device controls the transport box 17 to move to the outlet of the buffer hopper 5; 8) the control device controls the second sealing plate to the second outlet 8 Open, the material flows into the transport box 17; 9) The material level sensor on the transport box 17 detects that the material in the transport box 17 reaches a set amount, and transmits a signal to the control device, and the control device controls the second cover plate to be The second outlet 8 is closed; 10) the control device controls the transport mechanism to move the transport box 17 above the screening tank 10 and pour the material into the screening tank 10; 11) the screening device 9 screens the material, and the metal particles 2 remain in the In a discharge chamber 13, the pull tab 1 and the metal scrap fall into the second discharge chamber 14 via the split screen 11; the pull tab 1 remains in the second discharge chamber 14, and the metal debris enters through the slag screen 34. The slag discharge chamber 35; 12) the metal particles 2 flow through the first discharge passage 22 to the material conveying belt 24, and the metal debris flows to the material conveying belt 24 via the slag discharge passage 37, and the material conveying belt 24 transfers the metal particles 2 and the metal scrap Transported into the melt channel; 13) The pull tab 1 flows to the receiving box 30 via the second discharge channel 23 . 14) After the operation is completed, the grinding and screening apparatus of the present creation is stopped by the control device. It should be noted that the above operation steps are illustrative of the operation method of the grinding and screening device of the present invention, and are not the only limitation on the operation method of the grinding and screening device of the present invention. According to the actual needs of the production operation, the above operation steps can be performed. Adjustments and changes. The above description is only a preferred implementation of the present invention, and it should be noted that, for those skilled in the art, some improvements and replacements may be made without departing from the principles of the present invention. It should also be regarded as the protection of this creation.

1‧‧‧ pull film

2‧‧‧ metal particles

3‧‧‧ grinding equipment

4‧‧‧ grinding hopper

5‧‧‧buffering hopper

6‧‧‧feeding trough

7‧‧‧First exit

8‧‧‧second exit

9‧‧‧Screening equipment

10‧‧‧Filter slot

11‧‧‧Separate sieve

12‧‧‧buffer chute

13‧‧‧First discharge compartment

14‧‧‧Second discharge room

15‧‧‧First discharge opening

16‧‧‧Second discharge opening

17‧‧‧ transport box

18‧‧‧Connecting plate

19‧‧‧Distribution

20‧‧‧Second connection post

21‧‧‧Roller

22‧‧‧First discharge channel

23‧‧‧Second discharge channel

24‧‧‧Material conveyor

25‧‧‧First discharge opening

26‧‧‧Second discharge opening

27‧‧‧Baffle plate

28‧‧‧Separator

29‧‧‧Separation slot

30‧‧‧ receiving box

31‧‧‧Auxiliary hopper

32‧‧‧Auxiliary discharge channel

33‧‧‧Auxiliary discharge opening

34‧‧‧Slag screen

35‧‧‧Slag discharge room

36‧‧‧ slag discharge

37‧‧‧Slag discharge channel

38‧‧‧ column

39‧‧‧lifting frame

40‧‧‧ shaft

41‧‧‧Limited Column

42‧‧‧Tighten spring

43‧‧‧First connecting column

44‧‧‧ fixed board

45‧‧‧Chute

46‧‧‧ drive belt

47‧‧‧rail

48‧‧‧First clamping block

49‧‧‧Second clamping block

Figure 1 is a schematic view showing the state in which the tabs are separated from the metal particles attached to the tabs. 2 is a front elevational view of an embodiment of a polishing apparatus screening apparatus of the present invention. Figure 3 shows a perspective view of an embodiment of the inventive grinding apparatus screening apparatus as viewed from the front side of Figure 2. Figure 4 shows a perspective view of an embodiment of the inventive grinding apparatus screening apparatus as viewed from the rear side of Figure 2. Fig. 5 is a perspective view showing the structure of the buffer chute, the screening groove, and the like viewed from the rear side of Fig. 2; wherein the side walls of the screening groove toward the paper side are removed. Figure 6 shows a schematic view of the movement of the transport box from the left side of Figure 2 to the discharge chute connected to the buffer hopper to receive material from the buffer hopper. Fig. 7 is a view showing the connection of components such as a transport box, a connecting plate, a lifting frame, a column, and a fixing plate as viewed from the front side of Fig. 2, and the pin on the connecting plate is entering the state of the chute in the fixed plate. Figure 8 shows a schematic view of the structure of Figure 7 with the removed transport bin. Figure 9 is a view showing a state in which the material in the transport box is poured out for the dumping of the transport box. Figure 10 is a schematic illustration of the structure of Figure 9 with the removed transport bin. Figure 11 is a schematic view showing the cooperation of the chute and the roller on the fixing plate. Figure 12 shows the connection diagram of the lifting frame with the transmission belt, the guide rail and the column. Figure 13 is a flow chart showing the operation of the polishing apparatus screening apparatus of the present invention. The reference numerals are as follows:  <TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> 1 </td><td> pull tab</td><td> 26 </td ><td> Second discharge port</td></tr><tr><td> 2 </td><td> Metal particles</td><td> 27 </td><td> Board</td></tr><tr><td> 3 </td><td> Grinding Equipment</td><td> 28 </td><td> Separator </td></tr> <tr><td> 4 </td><td> Grinding Hopper</td><td> 29 </td><td> Separation Tank</td></tr><tr><td> 5 </ Td><td> buffer hopper</td><td> 30 </td><td> receiving box</td></tr><tr><td> 6 </td><td> </td><td> 31 </td><td> Auxiliary Hopper</td></tr><tr><td> 7 </td><td> First Exit</td><td> 32 </td><td> Auxiliary Discharge Channel</td></tr><tr><td> 8 </td><td> Second Exit</td><td> 33 </td><td > Auxiliary Outlet </td></tr><tr><td> 9 </td><td> Screening Equipment</td><td> 34 </td><td> Leak Screen </td ></tr><tr><td> 10 </td><td> Filter slot</td><td> 35 </td><td> slagging chamber</td></tr><tr> <td> 11 </td><td> dosing sieve</td><td> 36 </td><td> slag discharge port</td></tr><tr><td> 12 </td ><td> Buffer chute</td><td> 37 </td><td> Slag discharge channel</td></tr><t r><td> 13 </td><td> First discharge chamber</td><td> 38 </td><td> Column</td></tr><tr><td> 14 < /td><td> Second discharge chamber</td><td> 39 </td><td> Lifting frame</td></tr><tr><td> 15 </td><td> First discharge opening </td><td> 40 </td><td> rotation axis </td></tr><tr><td> 16 </td><td> second discharge opening </ Td><td> 41 </td><td> limit column</td></tr><tr><td> 17 </td><td> transport box</td><td> 42 < /td><td> Tensioning Spring</td></tr><tr><td> 18 </td><td> Connecting Plate</td><td> 43 </td><td> First Connecting column</td></tr><tr><td> 19 </td><td> blocking pin</td><td> 44 </td><td> fixing plate</td></tr ><tr><td> 20 </td><td> second connecting column</td><td> 45 </td><td> chute</td></tr><tr><td> 21 </td><td> Roller</td><td> 46 </td><td> Drive Belt</td></tr><tr><td> 22 </td><td> First Discharge channel</td><td> 47 </td><td> rail </td></tr><tr><td> 23 </td><td> second discharge channel</td> <td> 48 </td><td> First clamping block</td></tr><tr><td> 24 </td><td> Material conveyor belt</td><td> 49 </ Td><td> second clamping block</td></tr><tr><td> 25 </td><td> first discharge port</td><td> </td><td> </td></tr></TBODY></TABLE>

Claims (11)

A grinding and screening apparatus comprising a grinding device (3) having an abrasive hopper (4), a screening device (9) having a screening tank (10), and a control device, characterized in that: a bottom of the grinding hopper (4) is provided with a a first outlet (7), a buffer hopper (5) is disposed below the first outlet (7), a second outlet (8) is disposed at the bottom of the buffer hopper (5); and further includes a transport mechanism connected to the control device The transport mechanism is connected with a top open transport box (17), and the transport mechanism can drive the transport box (17) to reciprocate between the second outlet (8) and the screening tank (10). The transport box (17) receives material from the second outlet (8) and dumps the received material into the screening tank (10). The grinding and screening apparatus of claim 1, wherein: the transport box (17) dumps the material upstream of the screening tank (10), and the screening tank (10) is provided with a sorting screen upstream and downstream. (11), the dividing screen (11) divides the screening tank (10) into a first discharge chamber (13) located above the distribution screen (11) and below the distribution screen (11) a second discharge chamber (14); a first discharge opening (15) at the tail of the first discharge chamber (13); and a second discharge opening at the tail of the second discharge chamber (14) (16). The grinding and screening device of claim 2, wherein: a buffer chute (12) is disposed above the screening tank (10), and the lower end of the buffer chute (12) extends into the screening tank (10) and is adjacent to the screening Upstream of the tank (10); the transport box (17) dumps material into the buffer chute (12) and flows into the screening tank (10) via the buffer chute (12). The grinding and screening device of claim 2, wherein: the first discharge opening (15) is connected to a first discharge channel (22), and the first discharge channel (22) has a first discharge port at the end thereof. (25) a material conveying belt (24) is disposed below the first discharging port (25), and a material blocking plate is disposed on both sides of the material conveying belt (24); the second discharging port (16) is connected with a first The second discharge channel (23) has a second discharge port (26) at the end of the second discharge channel (23), and a receiving box (30) is disposed below the second discharge port (26). The grinding and screening device of claim 4, wherein: an auxiliary hopper (31) is further disposed beside the grinding hopper (4), and an auxiliary discharge channel (32) is connected to the bottom of the auxiliary hopper (31), the auxiliary discharging device An auxiliary discharge port (33) is disposed at an end of the passage (32), the auxiliary discharge port (33) is located above the material conveying belt (24); and a bottom slag sieve is further disposed on the bottom surface of the second discharge chamber (14) ( 34), below the slag screen (34) is a row of slag chambers (35), the bottom of the slag discharge chamber (35) is provided with a row of slag ports (36), and the slag discharge ports (36) are connected with the first A discharge channel (22) is connected to one of the slag discharge channels (37). The grinding and screening apparatus of claim 1, wherein: the second outlet (8) is connected to a discharge chute (6), and the transport mechanism can drive the transport box (17) to move and align with the discharge chute ( 6) The end opening. The grinding and screening apparatus of claim 1, wherein: the transport mechanism comprises a column (38), the column (38) is provided with a lifting frame (39), and the loading box (17) is rotatably connected thereto. a lifting pin (39), the loading box (17) is connected with a blocking pin (19); the column (38) is provided with a sliding slot (45), The upward movement of the lifting frame (39) enables the locking pin (19) to enter the sliding slot (45) from the lower end of the sliding slot (45), and the sliding slot (45) toggles the blocking pin (19) to drive the transmission The cartridge (17) is tilted toward the screening tank (10). The grinding and screening device of claim 7, wherein: the lifting frame (39) is provided with a rotating shaft (40) and a limiting column (41); the transportation box (17) is fixed on a connecting plate (18) The connecting plate (18) is connected to the rotating shaft (40); a tension spring (42) is further connected between the lifting frame (39) and the connecting plate (18), and the tension spring (42) is tightened The connecting plate (18) and the side of the connecting plate (18) abut against the limiting post (41) such that the transport box (17) keeps the opening upward; the post (38) is close to the screening One side of the slot (10) is provided with a fixing plate (44). The sliding slot (45) is disposed on the fixing plate (44), and the blocking pin (19) is disposed on the connecting plate (18). The grinding and screening device of claim 8, wherein: the connecting plate (18) is located between the limiting column (41) and the screening groove (10), and the lifting frame (39) further comprises a first connecting column (43), the first connecting post (43) and the limiting post (41) are located on the same side of the connecting plate (18); the connecting plate (18) is further provided with a second connecting post (20), The positions of the first connecting column (43), the second connecting column (20) and the limiting column (41) are higher than the position of the rotating shaft (40), and the two ends of the tension spring (42) are respectively connected The first connecting column (43) and the second connecting column (20). The grinding and screening device of claim 7, wherein: the upright (38) is provided with an upper and lower extension of the upper and lower extending and reciprocating drive belt (46), and the lifting frame (39) is fixed on the transmission belt (46); The column (38) is further provided with a guide rail (47) parallel to the transmission belts (46), and the lifting frame (39) is slidably engaged with the guide rails (47). The grinding and screening device of claim 1, wherein: the transport box (17) is further provided with a material level sensor, and the material level sensor is connected to the control device.