Solid shot screening device and separation method thereof

Abstract

The invention discloses a solid shot screening device and a separation method thereof. The solid shot screening device comprises a device body and feeding channels fixedly installed on the left side and the right side of the top face of the device body. A feeding mechanism is arranged on the top surface of the device body; a screening mechanism is arranged in the device body and comprises a main screening platform and an auxiliary screening platform. Wherein chip removing mechanisms are arranged on the left side and the right side of the interior of the device body correspondingly, and each chip removing mechanism comprises a chip removing frame. According to the solid shot screening device and the separation method thereof, the throwing mechanism at the top of the device body is used for intermittently throwing shots, the situation that blockage is caused due to the fact that the number of the shots thrown at a time is large is prevented, after powder scraps of the shots are screened out through the main screening platform, the metal powder scraps are removed through the scrap removing frame, and the separation efficiency is improved. And finally, the shot materials with large and small diameters are screened by the auxiliary screening platform, so that subsequent arrangement and recycling are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of pill screening, in particular to a solid pill screening device and a separation method thereof. Background Art

[0002] Solid shot refers to a polishing material used in metal polishing machines. The polishing machine drives the shot inside to rub against the surface of the metal workpiece to be polished. In order to remove impurities such as oxide scale on the surface of the metal workpiece, so as to improve the appearance quality of the metal workpiece, the shot used for a long time will reduce in volume due to continuous friction, and the scraps dropped by friction and the metal scraps dropped from the surface of the metal workpiece will be mixed with the shot, and will contact the metal workpiece again during subsequent use, which is easy to cause wear and scratches on the metal workpiece, and then the scraps and metal scraps in the shot need to be screened and removed; For example, the bullet screening device disclosed in announcement number CN103008243B, in which the hopper lifts the pills and dumps them into the silo door, and the materials enter the screw push rod material screen, which is driven by the belt transmission device of the motor reducer mechanism to push the materials into the dividing barrel for preliminary material screening, and the aperture of the dividing barrel screening barrel can be made according to the particle size requirements of the required finished materials; the materials are evenly distributed through the cloth movable baffle, so that the materials are screened again on the dividing screen, and the large pieces of materials are removed, and the materials are recycled into the silo for recycling; For example, the variable pitch drum screen separator disclosed in announcement number CN103272774B has mesh holes on the cylindrical screen, which are used for pills to fall during the conveying process to form a pill flow curtain; the air separation chamber is arranged directly below the cylindrical screen, and the air separation chamber is used to air separate the pill flow curtain; the characteristic is that the pitch of the inner spiral blades on the cylindrical screen changes from large to small along the advancing direction of the pills; the present invention can form a pill flow curtain with uniform thickness, so that the air separation effect is better, which is conducive to quickly and thoroughly separating large and small particles and fine dust in the pills, and obtaining clean and uniform pills; However, the above-mentioned screening device for shot materials still has the following problems during actual use: although the shot materials are moved by the screw to screen out the waste chips, the shot materials and the waste chips are mixed. Since the volume of the shot materials is different after wear, the over-worn shot materials cannot be screened only by the screw push rod. At the same time, the waste chips of the shot materials themselves and the metal waste chips of the workpiece cannot be screened, which makes it impossible to subsequently recycle and reuse the waste chips of the shot materials, thereby reducing the screening effect and efficiency.

[0003] Therefore, we propose a solid pellet screening device and a separation method thereof to solve the above-mentioned problems. Summary of the invention

[0004] The purpose of the present invention is to provide a solid shot screening device and a separation method thereof, in order to solve the problem that the existing screening device drives the shot to move by a screw so as to screen out the waste chips, but the shot and the waste chips are mixed. Since the volume of the shot is different after wear, the over-worn shot cannot be screened only by the screw push rod. At the same time, the waste chips of the shot itself and the metal waste chips of the workpiece cannot be screened, which leads to the inability to subsequently recycle and reuse the shot waste chips, thereby reducing the screening effect and screening efficiency.

[0005] To achieve the above object, the present invention provides the following technical solution: a solid shot screening device, comprising a device body, and feed channels fixedly mounted on the left and right sides of the top surface of the device body; and further comprising: The top surface of the device body is provided with a feeding mechanism, and the feeding mechanism includes a material guiding inclined plate, and the material guiding inclined plate is fixedly installed on the left and right sides of the top surface of the device body; A screening mechanism is arranged inside the device body, and the screening mechanism includes a main screening platform and an auxiliary screening platform, and the main screening platform and the auxiliary screening platform are respectively fixedly installed on the upper and lower sides of the device body; Wherein, a chip removal mechanism is arranged on both the left and right sides of the inside of the device body, and the chip removal mechanism includes a chip removal frame, and the chip removal frame is fixedly installed at the center position of the left and right sides of the inside of the device body; The screening mechanism comprises a main screening platform, in which powder screening holes are provided at equal intervals in the middle, and the front and rear sides of the middle of the bottom surface of the main screening platform are connected to the top of the powder conduit, and the bottom ends of the front and rear powder conduits are both connected to the outside of the device body, and the symmetrically arranged powder conduits are connected to the powder screening holes provided inside the main screening platform, so that the powder can be discharged through the powder conduit; The auxiliary screening platform included in the screening mechanism is provided with small-diameter sieve holes on both sides, and large-diameter sieve holes are provided at equal distances at the center of the auxiliary screening platform, and vertical partition plates are fixedly provided on both sides of the bottom surface of the auxiliary screening platform, and the pellets screened by the small-diameter sieve holes and the large-diameter sieve holes are separated by the symmetrically arranged vertical partition plates to prevent them from mixing with each other; A material blocking convex plate is fixedly installed between the small-diameter sieve holes on the left and right sides inside the auxiliary screening platform, and the material blocking convex plate and the small-diameter sieve holes are distributed in a staggered manner. The material blocking convex plate can slow down the movement speed of the small-hole pill material, thereby preventing the small-hole pill material from entering the large-diameter sieve holes opened inside the auxiliary screening platform, and the small-diameter pill material is dropped to the outside of the partition vertical plate through the small-diameter sieve holes.

[0006] Preferably, a driving shaft is rotatably arranged inside the symmetrically arranged feed channel through a bearing, and a driving fan plate is fixedly arranged at an equal angle on the outer wall of the driving shaft, and the shot material is dropped in the feed channel, thereby driving the driving fan plate and the driving shaft to rotate, and the bottom ends of the feed channels on the left and right sides correspond to the outside of the top surface of the guide inclined plate included in the feeding mechanism.

[0007] Preferably, the delivery mechanism includes a crankshaft rod, and the crankshaft rod is rotatably arranged on the left and right sides of the bottom surface of the left and right material guide inclined plates, and the outer walls of the left and right crankshaft rods are rotatably connected to the bottom ends of the material blocking vertical plates, and the symmetrically arranged material blocking vertical plates are slidably arranged on the left and right sides of the top surface of the material guide inclined plates in an up and down staggered manner.

[0008] Preferably, the left and right crankshaft rods included in the delivery mechanism are meshed and connected to each other through a first sprocket mechanism, and the front end of the outer crankshaft rod is meshed and connected to the front end of the driving shaft inside the feed channel through a second sprocket mechanism, and the outer ends of the material blocking vertical plates above the crankshaft rods are slidably connected to the top of the limit bracket, and the bottom ends of the symmetrically arranged limit brackets are fixedly installed on the top of the device body.

[0009] Preferably, the chip removal mechanism includes a magnetic roller, and the magnetic roller is rotatably arranged inside the left and right chip removal frames through bearings, and the outer side of the magnetic roller is penetrated and arranged outside the chip removal frame, and the outside of the chip removal frame is fixedly installed with a scraper for scraping metal chips, and the top of the scraper is fitted on the outer wall of the magnetic roller to clean the metal chips.

[0010] Preferably, the front end of the magnetic roller included in the chip removal mechanism and the front end of the driving shaft inside the feed channel are meshed and connected to each other through a third sprocket mechanism, and the shot material screened by the main screening platform is introduced through the top of the chip removal frame included in the chip removal mechanism, so that after the metal powder is separated, it is dropped to the top of the auxiliary screening platform through the bottom end of the chip removal frame.

[0011] A separation method of a solid pellet screening device comprises the following steps: S1: First, the pellets are put into the feeding channels on the left and right sides of the top surface of the device body, and then the pellets are contacted with the driving fan plates arranged at equal angles inside the feeding channel during the falling process, thereby driving the driving fan plates and the driving shaft to rotate, and the pellets continue to fall, so as to enter the inside of the guide inclined plate included in the feeding mechanism. The vertical blocking plates on the left and right sides of the top surface of the guide inclined plate are staggered up and down to block the pellets first, so as to prevent the pellets from being blocked due to the large amount of pellets put in at one time; S2: The driving shaft rotating inside the feed channel first drives the crankshaft rotating rod on the outer side of the guide inclined plate to rotate through the second sprocket mechanism, and the crankshaft rotating rod on the outer side drives the crankshaft rotating rod on the inner side to rotate through the first sprocket mechanism, so that the crankshaft rotating rods on both sides of the inner and outer sides drive the material blocking vertical plates on the outer wall to rotate in the up and down directions, and at the same time, the material blocking vertical plates on the left and right sides are kept in their vertical state by the limit brackets connected by sliding, so that the material blocking vertical plates on both sides of the inner and outer sides move in an alternating manner in the up and down directions, and then the shot materials on the top surface of the guide inclined plate are intermittently released, so as to slow down the movement speed of the shot materials and improve the accuracy of subsequent screening; S3: The pellets delivered by the delivery mechanism first fall to the top of the main screening platform included in the chip removal mechanism, and the powder mixed with the pellets first falls to the middle of the main screening platform so as to be filtered through the powder screen holes opened in the middle, so that the powder falls to the bottom of the main screening platform and is discharged to the outside of the device body through the through-connected powder duct. At the same time, the pellets slide to the left and right sides of the main screening platform so as to enter the inside of the chip removal frame included in the screening mechanism for the next step of processing; Furthermore, the shot material enters the interior of the chip removal frame included in the chip removal mechanism, so that the shot material continues to fall inside the chip removal frame and contacts with the magnetic roller, so that the metal powder mixed with the shot material is adsorbed by the magnetic roller, and at the same time, during the rotation of the driving shaft inside the feed channel, the meshing magnetic roller is driven by the third sprocket mechanism to rotate inside the chip removal frame, so that the magnetic roller drives the adsorbed metal powder to rotate to the outside of the chip removal frame, and at the same time, the magnetic roller contacts the material removal scraper outside the chip removal frame, so that the metal powder magnetically attracted to the outer wall of the magnetic roller is removed and discharged to the outside of the device body, thereby ensuring the continuous operation of the magnetic roller and preventing metal adhesion from affecting the subsequent operation of the chip removal mechanism; S4: The pellets from which the metal powders are removed are further moved downward by the chip removal mechanism so as to fall on the top surface of the auxiliary screening platform included in the screening mechanism, and the auxiliary screening platform with a low inside and a high outside drives the pellets of different diameters to move toward the middle, and then the pellets of small diameter are decelerated by the material blocking convex plates installed at equal distances on the left and right sides of the auxiliary screening platform, while the pellets of large diameter can pass over the material blocking convex plates and move toward the middle of the auxiliary screening platform so as to be screened through the large-diameter sieve holes opened in the middle of the auxiliary screening platform, while the pellets of small diameter are blocked by the material blocking convex plates so as to be screened through the small-diameter sieve holes opened, and at the same time, the dividing vertical plates arranged on the left and right sides of the bottom of the auxiliary screening platform separate the pellets of large diameter from the pellets of small diameter for subsequent sorting and reuse.

[0012] Compared with the prior art, the invention has the following beneficial effects: the solid shot screening device and the separation method thereof intermittently feed the shot through the feeding mechanism on the top of the device body, and prevent the blockage caused by the large number of shot fed at one time, and after the shot powder is screened out by the main screening platform, the metal powder is removed by the chip removal frame, and finally the shot of large and small diameter is screened by the auxiliary screening platform for subsequent sorting and reuse. The specific contents are as follows: 1. The falling pills enter the feeding channel to drive the driving fan plate and the driving shaft to rotate, and then continue to fall into the guide inclined plate. At the same time, the driving shaft drives the driving rods on the left and right sides to rotate, and then drives the vertical material blocking plates on the inner and outer sides to move up and down, so as to intermittently release the pills on the top of the guide inclined plate, so as to slow down the movement speed of the pills, improve the accuracy of subsequent screening, and prevent the blockage caused by the large number of pills released at one time; 2. The pellets fall onto the main screening platform, and their waste chips are filtered through the powder screen holes in the middle of the main screening platform, so that the powder chips fall to the bottom of the main screening platform and are discharged to the outside of the device body through the through-connected powder chip duct; the pellets slide to the left and right sides of the main screening platform so as to enter the inside of the chip removal frame included in the screening mechanism for the next step of processing; 3. After the shot material and its own waste chips are screened, the metal waste chips are driven into the interior of the chip removal frame. At the same time, the driving shaft drives the magnetic roller through the third sprocket mechanism to drive the adsorbed metal powder chips to rotate to the outside of the chip removal frame, and contact with the material removal scraper outside the chip removal frame, so as to remove the metal powder chips magnetically attracted to the outer wall of the magnetic roller and discharge them to the outside of the device body, thereby ensuring the continuous operation of the magnetic roller and preventing metal adhesion from affecting the subsequent operation of the chip removal mechanism; 4. After the pellets and metal scraps are screened, they fall on the top surface of the auxiliary screening platform. The pellets with small diameter are decelerated by the blocking convex plate, while the pellets with large diameter pass over the blocking convex plate so as to be screened through the large-diameter sieve holes. The pellets with small diameter are blocked by the blocking convex plate and screened through the small-diameter sieve holes. At the same time, the vertical partition plates on the left and right sides of the bottom of the auxiliary screening platform separate the pellets with large diameter from those with small diameter for subsequent sorting and reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the feed channel of the present invention; Figure 3 This is a schematic diagram of the installation structure of the material guide inclined plate of the present invention; Figure 4This is a schematic diagram of the installation structure of the drive fan plate of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the material retaining vertical plate of the present invention; Figure 6 This is a schematic diagram of the crankshaft rotating rod installation structure of the present invention; Figure 7 This is a schematic diagram of the installation structure of the dust duct of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the main screening platform of the present invention; Fig. 9 For the present invention Figure 8 The enlarged structural diagram at A in the middle; Fig.10 It is a schematic diagram of the three-dimensional structure of the magnetic roller of the present invention.

[0014] In the figure: 1. Device body; 2. Feed channel; 3. Material guide inclined plate; 4. Main screening platform; 5. Auxiliary screening platform; 6. Chip removal frame; 7. Driving shaft; 8. Driving fan plate; 9. Crankshaft rotating rod; 10. Material blocking vertical plate; 11. First sprocket mechanism; 12. Second sprocket mechanism; 13. Limiting bracket; 14. Powder screen hole; 15. Powder duct; 16. Small diameter screen hole; 17. Large diameter screen hole; 18. Partition vertical plate; 19. Magnetic roller; 20. Material removal scraper; 21. Third sprocket mechanism; 22. Material blocking convex plate. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-Figure 10 , the present invention provides the following technical solutions: Embodiment 1: In order to solve the problems existing in the use of the existing device body 1, the present embodiment adopts the following technical scheme: a solid shot screening device, comprising a device body 1, and a feed channel 2 fixedly mounted on the left and right sides of the top surface of the device body 1; a delivery mechanism is arranged on the top surface of the device body 1, and the delivery mechanism includes a guide ramp 3, and the guide ramp 3 is fixedly mounted on the left and right sides of the top surface of the device body 1; a driving shaft 7 is rotatably arranged inside the symmetrically arranged feed channel 2 through a bearing, and a driving fan plate 8 is fixedly arranged on the outer wall of the driving shaft 7 at an equal angle, and the drive fan plate 8 and the driving shaft 7 are driven to rotate by the delivery and descent of the shot inside the feed channel 2, and the bottom ends of the feed channels 2 on the left and right sides correspond to the outside of the top surface of the guide ramp 3 included in the delivery mechanism; The feeding mechanism includes a crankshaft rotating rod 9, and the crankshaft rotating rod 9 is rotatably arranged on the left and right sides of the bottom surface of the left and right material guide inclined plates 3, and the outer walls of the left and right crankshaft rotating rods 9 are rotatably connected to the bottom ends of the material blocking vertical plates 10, and the symmetrically arranged material blocking vertical plates 10 are slidably arranged on the left and right sides of the top surface of the material guide inclined plates 3 in an up-down staggered manner; the left and right crankshaft rotating rods 9 included in the feeding mechanism are meshed and connected to each other through a first sprocket mechanism 11, and the front end of the outer crankshaft rotating rod 9 is meshed and connected to the front end of the driving shaft 7 inside the feed channel 2 through a second sprocket mechanism 12, and the outer ends of the material blocking vertical plates 10 above the crankshaft rotating rods 9 are slidably connected to the top ends of the limiting brackets 13, and the bottom ends of the symmetrically arranged limiting brackets 13 are fixedly installed on the top end of the device body 1; like Figure 3-Figure 6 As shown, firstly, the pellets are put into the feeding channels 2 on the left and right sides of the top surface of the device body 1, and then the put-in pellets contact the driving fan plates 8 arranged at equal angles inside the feeding channel 2 during the falling process, thereby driving the driving fan plates 8 and the driving shaft 7 to rotate, and the pellets continue to fall, so as to enter the inside of the guide inclined plate 3 included in the feeding mechanism, and the blocking vertical plates 10 on the left and right sides of the top surface of the guide inclined plate 3 are staggered up and down to block the pellets first, so as to prevent the pellets put in at one time from causing blockage due to a large number of pellets; The driving shaft 7 rotating inside the feed channel 2 first drives the crankshaft rotating rod 9 on the outer side of the guide inclined plate 3 to rotate through the second sprocket mechanism 12, and the crankshaft rotating rod 9 on the outer side drives the crankshaft rotating rod 9 on the inner side to rotate through the first sprocket mechanism 11, so that the crankshaft rotating rods 9 on both sides of the inner and outer sides drive the material blocking vertical plates 10 on the outer wall to rotate in the up and down directions, and at the same time, the material blocking vertical plates 10 on the left and right sides are kept in their vertical state by the limit brackets 13 connected by sliding connection, so that the material blocking vertical plates 10 on both sides of the inner and outer sides move in an alternating manner in the up and down directions, and then the shot materials on the top surface of the guide inclined plate 3 are intermittently released, so as to slow down the movement speed of the shot materials and improve the accuracy of subsequent screening; Embodiment 2: In order to solve the problems existing in the use of the existing device body 1, the present embodiment adopts the following technical scheme: a screening mechanism is arranged inside the device body 1, and the screening mechanism includes a main screening platform 4 and an auxiliary screening platform 5, and the main screening platform 4 and the auxiliary screening platform 5 are respectively fixedly installed on the upper and lower sides of the inside of the device body 1; powder screening holes 14 are equidistantly provided in the middle of the main screening platform 4 included in the screening mechanism, and the front and rear sides of the middle of the bottom surface of the main screening platform 4 are connected to the top of the powder conduit 15, and the bottom ends of the powder conduits 15 on the front and rear sides are both arranged outside the device body 1, and the symmetrically arranged powder conduits 15 are connected to the powder screening holes 14 opened inside the main screening platform 4, so that the powder can be discharged through the powder conduit 15; Wherein, chip removal mechanisms are arranged on both left and right sides of the interior of the device body 1, and the chip removal mechanism includes a chip removal frame 6, and the chip removal frame 6 is fixedly installed at the center position of the left and right sides of the interior of the device body 1; the chip removal mechanism includes a magnetic roller 19, and the magnetic roller 19 is rotatably arranged inside the chip removal frames 6 on both sides of the left and right sides through bearings, and the outer side of the magnetic roller 19 is penetrated and arranged outside the chip removal frame 6, and the outside of the chip removal frame 6 is fixedly installed with a material removal scraper 20 for scraping metal powder, and the top of the material removal scraper 20 is fitted on the outer wall of the magnetic roller 19 so as to clean the metal powder; the front end of the magnetic roller 19 included in the chip removal mechanism is meshed and connected with the front end of the driving shaft 7 inside the feed channel 2 through the third sprocket mechanism 21, and the pellets screened by the main screening platform 4 are introduced through the top of the chip removal frame 6 included in the chip removal mechanism, so that after separating the metal powder, they are dropped to the top of the auxiliary screening platform 5 through the bottom end of the chip removal frame 6; like Figure 7 , Fig.10 As shown, the pellets released by the release mechanism first fall to the top of the main screening platform 4 included in the chip removal mechanism, and the powder mixed with the pellets first falls to the middle of the main screening platform 4 so as to be filtered through the powder screen hole 14 opened in the middle, so that the powder falls to the bottom of the main screening platform 4 and is discharged to the outside of the device body 1 through the through-connected powder duct 15. At the same time, the pellets slide to the left and right sides of the main screening platform 4 so as to enter the inside of the chip removal frame 6 included in the screening mechanism for the next step of processing; Furthermore, the shot enters the interior of the chip removal frame 6 included in the chip removal mechanism, so that the shot continues to fall inside the chip removal frame 6 and contacts with the magnetic roller 19, so that the metal powder mixed with the shot distribution is adsorbed by the magnetic roller 19, and at the same time, during the rotation of the driving shaft 7 inside the feed channel 2, it drives the meshing magnetic roller 19 to rotate inside the chip removal frame 6 through the third sprocket mechanism 21, so that the magnetic roller 19 drives the adsorbed metal powder to rotate to the outside of the chip removal frame 6, and at the same time, the magnetic roller 19 contacts the material removal scraper 20 outside the chip removal frame 6, so that the metal powder magnetically attracted to the outer wall of the magnetic roller 19 is removed and discharged to the outside of the device body 1, thereby ensuring the continuous operation of the magnetic roller 19 and preventing metal adhesion from affecting the subsequent operation of the chip removal mechanism; Embodiment 3: In order to solve the problems existing in the use of the existing device body 1, the present embodiment adopts the following technical scheme: the auxiliary screening platform 5 included in the screening mechanism is provided with small-diameter sieve holes 16 on both sides of the inside, and large-diameter sieve holes 17 are provided at equal distances at the center position of the inside of the auxiliary screening platform 5, and partition vertical plates 18 are fixedly provided on both sides of the bottom surface of the auxiliary screening platform 5, and the pellets screened by the small-diameter sieve holes 16 and the large-diameter sieve holes 17 are separated by the symmetrically arranged partition vertical plates 18 to prevent them from mixing with each other; A material blocking convex plate 22 is fixedly installed between the small-diameter sieve holes 16 on the left and right sides of the auxiliary screening platform 5, and the material blocking convex plate 22 and the small-diameter sieve holes 16 are arranged in a staggered manner, and the material blocking convex plate 22 can slow down the movement speed of the small-hole pellets, thereby preventing the small-hole pellets from entering the large-diameter sieve holes 17 opened in the auxiliary screening platform 5, and the small-diameter pellets are dropped to the outside of the partition vertical plate 18 through the small-diameter sieve holes 16; like Figure 7-Figure 9 As shown, the pellets from which the metal powder is removed are further moved downward by the chip removal mechanism so as to fall on the top surface of the auxiliary screening platform 5 included in the screening mechanism, and the auxiliary screening platform 5 with a lower inside and a higher outside drives the pellets of different diameters to move toward the middle, and then the pellets of small diameter are decelerated by the material blocking convex plates 22 installed at equal distances on the left and right sides of the auxiliary screening platform 5, while the pellets of large diameter can pass over the material blocking convex plates 22 and move toward the middle of the auxiliary screening platform 5 so as to be screened through the large-diameter sieve holes 17 opened in the middle of the auxiliary screening platform 5, while the pellets of small diameter are blocked by the material blocking convex plates 22 so as to be screened through the small-diameter sieve holes 16 opened, and at the same time, the dividing vertical plates 18 arranged on the left and right sides of the bottom of the auxiliary screening platform 5 separate the pellets of large diameter from the pellets of small diameter for subsequent sorting and reuse.

[0017] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A solid pellet screening device, comprising a device body (1), and feed channels (2) fixedly mounted on the left and right sides of the top surface of the device body (1); It is characterized in that Also includes: The top surface of the device body (1) is provided with a delivery mechanism, and the delivery mechanism includes a material guide inclined plate (3), and the material guide inclined plate (3) is fixedly mounted on the left and right sides of the top surface of the device body (1); A screening mechanism is provided inside the device body (1), and the screening mechanism comprises a main screening platform (4) and an auxiliary screening platform (5), and the main screening platform (4) and the auxiliary screening platform (5) are respectively fixedly mounted on the upper and lower sides of the inside of the device body (1); Wherein, a chip removal mechanism is provided on both left and right sides of the device body (1), and the chip removal mechanism comprises a chip removal frame (6), and the chip removal frame (6) is fixedly installed at the center position of the left and right sides of the device body (1); The screening mechanism comprises a main screening platform (4) having powder screening holes (14) at equal intervals in the middle, and the front and rear sides of the middle of the bottom surface of the main screening platform (4) are connected to the top of the powder conduit (15), and the bottom ends of the front and rear powder conduits (15) are both arranged outside the device body (1), and the symmetrically arranged powder conduits (15) are connected to the powder screening holes (14) provided inside the main screening platform (4) so ​​that the powder can be discharged through the powder conduits (15); The screening mechanism comprises a secondary screening platform (5) with small-diameter sieve holes (16) on both sides of its interior, and a large-diameter sieve hole (17) is equidistantly provided at the center of the secondary screening platform (5), and a partitioning vertical plate (18) is fixedly provided on both sides of the bottom surface of the secondary screening platform (5), and the pellets screened by the small-diameter sieve hole (16) and the large-diameter sieve hole (17) are separated by the partitioning vertical plates (18) which are symmetrically arranged to prevent them from mixing with each other; A material blocking convex plate (22) is fixedly installed between the small-diameter sieve holes (16) on the left and right sides of the auxiliary screening platform (5), and the material blocking convex plate (22) and the small-diameter sieve holes (16) are arranged in a staggered manner. The material blocking convex plate (22) can slow down the movement speed of the small-hole pellets, thereby preventing the small-hole pellets from entering the large-diameter sieve holes (17) provided in the auxiliary screening platform (5), and the small-diameter pellets are dropped to the outside of the partition vertical plate (18) through the small-diameter sieve holes (16).

2. A solid pellet screening device according to claim 1, characterized in that: A driving shaft (7) is rotatably arranged inside the symmetrically arranged feed channel (2) via a bearing, and a driving fan plate (8) is fixedly arranged at an equal angle on the outer wall of the driving shaft (7), and the shot material is dropped into the feed channel (2), thereby driving the driving fan plate (8) and the driving shaft (7) to rotate, and the bottom ends of the left and right feed channels (2) correspond to the outside of the top surface of the material guide inclined plate (3) included in the delivery mechanism.

3. A solid shot screening device according to claim 1, characterized in that: The delivery mechanism comprises a crankshaft rotating rod (9), and the crankshaft rotating rod (9) is rotatably arranged on the left and right sides of the bottom surface of the left and right material guide inclined plates (3), and the outer walls of the left and right crankshaft rotating rods (9) are rotatably connected to the bottom ends of the material blocking vertical plates (10), and the symmetrically arranged material blocking vertical plates (10) are slidably arranged on the left and right sides of the top surface of the material guide inclined plates (3) in an up-down staggered manner.

4. A solid shot screening device according to claim 3, characterized in that: The delivery mechanism comprises left and right crankshaft rotating rods (9) which are meshed and connected to each other via a first sprocket mechanism (11), and the front end of the outer crankshaft rotating rod (9) is meshed and connected to the front end of the driving rotating shaft (7) inside the feed channel (2) via a second sprocket mechanism (12), and the outer ends of the material blocking vertical plates (10) above the crankshaft rotating rod (9) are slidably connected to the top end of the limiting bracket (13), and the bottom ends of the symmetrically arranged limiting brackets (13) are fixedly mounted on the top end of the device body (1).

5. The solid shot screening device according to claim 1, characterized in that: The chip removal mechanism comprises a magnetic roller (19), and the magnetic roller (19) is rotatably arranged inside the chip removal frames (6) on the left and right sides via bearings, and the outer side of the magnetic roller (19) is penetrated and arranged outside the chip removal frame (6), and a material removal scraper (20) for scraping off metal powder is fixedly installed on the outside of the chip removal frame (6), and the top end of the material removal scraper (20) is fitted on the outer wall of the magnetic roller (19) to clean the metal powder.

6. A solid shot screening device according to claim 5, characterized in that: The front end of the magnetic roller (19) included in the chip removal mechanism and the front end of the driving shaft (7) inside the feed channel (2) are meshed and connected with each other through a third sprocket mechanism (21), and the pellets screened by the main screening platform (4) are introduced through the top end of the chip removal frame (6) included in the chip removal mechanism, so that after the metal powder chips are separated, they are dropped to the top of the auxiliary screening platform (5) through the bottom end of the chip removal frame (6).

7. The separation method of a solid pellet screening device according to claim 1, characterized in that: The steps include: S1: First, the pellets are fed into the feed channels (2) on the left and right sides of the top surface of the device body (1), and then the fed pellets contact the driving fan plates (8) arranged at equal angles inside the feed channel (2) during the falling process, thereby driving the driving fan plates (8) and the driving shaft (7) to rotate, and the pellets continue to fall so as to enter the interior of the guide inclined plate (3) included in the feeding mechanism. The blocking vertical plates (10) on the left and right sides of the top surface of the guide inclined plate (3) are firstly used to block the pellets to prevent the pellets from being blocked due to the large amount of pellets fed at one time; S2: The driving shaft (7) rotating inside the feed channel (2) first drives the crankshaft rotating rod (9) on the outside of the guide inclined plate (3) to rotate through the second sprocket mechanism (12), and the crankshaft rotating rod (9) on the outside drives the crankshaft rotating rod (9) on the inside to rotate through the first sprocket mechanism (11), so that the crankshaft rotating rods (9) on both sides drive the material blocking vertical plate (10) on the outer wall to rotate in the up and down directions, and at the same time, the material blocking vertical plates (10) on the left and right sides are kept in a vertical state by the limit brackets (13) connected by sliding, so that the material blocking vertical plates (10) on both sides move in an alternating manner in the up and down directions, and then the shot material on the top surface of the guide inclined plate (3) is intermittently released, so as to slow down the movement speed of the shot material and improve the accuracy of subsequent screening; S3: The pellets delivered by the delivery mechanism first fall to the top of the main screening platform (4) included in the chip removal mechanism, and the powder mixed with the pellets first falls to the middle of the main screening platform (4) so ​​as to be filtered through the powder screen hole (14) opened in the middle, so that the powder falls to the bottom of the main screening platform (4) and is discharged to the outside of the device body (1) through the connected powder duct (15). At the same time, the pellets slide to the left and right sides of the main screening platform (4) so ​​as to enter the inside of the chip removal frame (6) included in the screening mechanism for the next step of processing; Furthermore, the shot enters the interior of the chip removal frame (6) included in the chip removal mechanism, so that the shot continues to fall inside the chip removal frame (6) and contacts the magnetic roller (19), so that the metal powder mixed with the shot is adsorbed by the magnetic roller (19). At the same time, during the rotation of the driving shaft (7) inside the feed channel (2), the third sprocket mechanism (21) drives the meshing magnetic roller (19) to rotate inside the chip removal frame (6), so that the magnetic roller (19) drives the adsorbed metal powder to rotate to the outside of the chip removal frame (6). At the same time, the magnetic roller (19) contacts the material removal scraper (20) outside the chip removal frame (6), so that the metal powder magnetically attracted to the outer wall of the magnetic roller (19) is removed and discharged to the outside of the device body (1), thereby ensuring the continuous operation of the magnetic roller (19) and preventing metal adhesion from affecting the subsequent operation of the chip removal mechanism. S4: The pellets from which the metal powder has been removed are further moved downward by the chip removal mechanism so as to fall onto the top surface of the auxiliary screening platform (5) included in the screening mechanism, and the auxiliary screening platform (5) with a lower interior and a higher exterior drives pellets of different diameters to move toward the middle, and then the pellets of small diameter are decelerated by the material blocking convex plates (22) installed at equal distances on the left and right sides of the auxiliary screening platform (5), while the pellets of large diameter can pass over the material blocking convex plates (22) and move toward the middle of the auxiliary screening platform (5) so as to be screened through the large-diameter sieve holes (17) opened in the middle of the auxiliary screening platform (5), while the pellets of small diameter are blocked by the material blocking convex plates (22) so as to be screened through the opened small-diameter sieve holes (16), and at the same time, the partition vertical plates (18) arranged on the left and right sides of the bottom of the auxiliary screening platform (5) separate the pellets of large diameter from the pellets of small diameter so as to be subsequently sorted and reused.

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