Granulator for crystallizer casting powder

Abstract

Cutting knives are fixed to the upper sides of the left end and the right end of the inner wall of a collecting box correspondingly, a material extruding plate is located above the cutting knives, a hollow connecting base is fixed between the cutting knives, rope winding assemblies are installed on the left side and the right side in the hollow connecting base, and material scraping assemblies are slidably connected to the outer portions of the cutting knives; the two ends of the scraping assembly are connected with pull ropes, and the tail end of one pull rope is connected with the rope winding assembly. The two movable scraping seats are spliced outside the cutting knife, meanwhile, the two pull ropes are connected with the movable scraping seats, and the movable scraping seats are fixed through the bolts, so that after the Y-shaped pipe rotates and the cutting knife is utilized to cut particles below the material extruding plate, the material extruding plate below the Y-shaped pipe pushes the T-shaped stop lever to slide along the annular rail, and the cutting knife is utilized to cut particles. In this way, one pull rope can be used for pulling the movable scraping base to slide along the cutting knife so as to scrape off the covering slag raw materials remaining on the surface of the cutting knife, the cutting knife can be completely surrounded for scraping off, no dead angle exists, and the using effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of production of crystallizer protection slag, in particular to a granulator for crystallizer protection slag. Background Art

[0002] The mold protection slag is placed on the surface of the molten steel in the crystallizer during the continuous steel casting process to keep warm, prevent oxidation and absorb non-metallic inclusions. The mold protection slag needs to go through the granulation process during the production and preparation process, for which a granulator is needed.

[0003] In the current crystallizer protective slag granulator, when the blade is rotating and cutting for granulation, the protective slag raw material is sticky, so it is easy to adhere to the surface of the blade body after cutting. After multiple cuttings, the blade body is easily attached by the raw material, so that the granular raw material on the surface of the blade body hinders the cutting of the blade body, reducing the granulation yield of the raw material. Although the utility model with patent document number CN213824669U can solve this problem, the patent uses a baffle plate, a pusher block and a cutting blade structure to block and limit the granular raw material cut by the cutting blade to avoid continuous adhesion to the blade body. The baffle plate is continuously cooled by its cooling water channel and cooling water pipe, so that the baffle plate can be continuously cooled and shaped at a temperature lower than the granular raw material, avoiding the mutual adhesion of multiple adjacent granular raw materials. The push block is driven by the electric push rod to push and remove the granular raw material on the baffle plate, and roll it out of the shell to complete the granulation process. In the actual working process, the protective slag raw material produced by the cutting knife will not only have residue on the side close to the baffle plate. Therefore, the effect of scraping off the protective slag raw material on one side of the baffle plate by the baffle plate alone is poor. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a granulator for mold protection slag to solve the problems raised in the above-mentioned background technology.

[0005] A granulator for mold protection slag, comprising a collecting box, wherein fixing rods are fixed on both sides of the upper end of the collecting box, a feed pipe is fixed between the upper parts of the fixing rods, a rotating joint is connected to the lower part of the feed pipe, a Y-shaped tube is connected to the lower part of the rotating joint, a driving device is installed on the side of the feed pipe, the driving device is in driving connection with the Y-shaped tube, and extrusion plates are fixed to both ends of the lower part of the Y-shaped tube;

[0006] Cutting knives are fixed on the upper sides of the left and right ends of the inner wall of the collection box, the squeezing plate is located above the cutting knives, a hollow connecting seat is fixed between the cutting knives, a rope winding assembly is installed on the left and right sides of the hollow connecting seat, a scraping assembly is slidably connected to the outside of the cutting knife, and both ends of the scraping assembly are connected to a pull rope, and one end of the pull rope is connected to the rope winding assembly, an annular track is fixed on the inner wall of the collection box and located below the cutting knife, and T-shaped sliders are symmetrically slidably connected to the left and right sides of the annular track, and the other end of the pull rope movably passes through the inside of the annular track and is fixed to the T-shaped slider;

[0007] A sliding rod is fixed to the inner end of the T-shaped slider, a concave seat is fixed to the end of the sliding rod, a baffle is fixed to the upper part of one surface of the concave seat, an axle rod is rotatably connected inside the concave seat, a torsion spring is installed outside the axle rod, a T-shaped baffle rod that resists the baffle is fixed to the upper end of the axle rod, blocks are elastically connected to the two sides of the lower part of the T-shaped baffle rod, the blocks are plugged into the concave seat, and one side of the T-shaped baffle rod is in contact with the extrusion plate.

[0008] Furthermore, the driving device includes a motor, a driving gear and a driven gear, the motor is fixedly mounted on the side of the feed pipe, the driving gear is fixed at the end of the driving shaft of the motor, the driven gear is fixed outside the Y-shaped tube, and the driving gear is meshed and connected with the driven gear.

[0009] Furthermore, the rope winding assembly includes a rotating shaft, a rope pulley and a clockwork spring, the rotating shaft is rotatably connected to the inside of a hollow connecting seat, the rope pulley is fixed to the outside of the rotating shaft, the clockwork spring is installed on the outside of the rotating shaft, and the two ends of the clockwork spring are respectively connected to the outer wall of the rotating shaft and the inner wall of the hollow connecting seat, and one of the ends of the pull rope movably passes through the inside of the hollow connecting seat and is connected to the rope pulley.

[0010] Furthermore, the scraper assembly includes a pair of movable scraper seats, which are symmetrically arranged and fixed by bolts, and a knife cavity is opened on the upper side of one end of the movable scraper seats that are close to each other, and the cutting knife is located inside the knife cavity and is slidably connected to the knife cavity, and limiting grooves are opened on both sides of the middle part of one end of the movable scraper seats that are close to each other, and a rope opening is opened at the outer end of the limiting groove, and a rope head is fixed at the head end of the pull rope, and the rope head is inserted into the limiting groove, and the pull rope is located inside the rope opening.

[0011] Furthermore, a guide hole is opened on the lower side of one end of the movable scraper seat that is close to each other, and a guide rod is provided between the cutting knife and the annular track. The guide rod is slidably connected inside the guide hole, and both ends of the guide rod are respectively fixed to the collection box and the hollow connecting seat.

[0012] Furthermore, telescopic rods are fixed on the outer sides of the left and right ends of the hollow connecting seat, a buffer spring is provided on the outer side of the telescopic rod, the head end of the buffer spring is fixed to the hollow connecting seat, the end of the buffer spring is fixed to the end of the telescopic rod, and the end of the telescopic rod is in contact with the movable scraper seat.

[0013] Furthermore, side grooves are opened on both sides of the lower part of the T-shaped baffle rod, the clamping block is located inside the side groove, a compression spring is connected between the clamping block and the bottom of the side groove, clamping grooves are opened at both ends of the inner wall of the concave seat, the clamping block is plugged into the clamping groove, and the side of the clamping block close to the clamping groove is an arc surface.

[0014] Furthermore, the lower end of the collecting box is an open end, and a screen is closely attached to the lower end of the collecting box.

[0015] Furthermore, a slideway is provided at the bottom of the annular track, a connecting rod is fixed to the lower end of the T-shaped slider, the lower part of the connecting rod extends out of the slideway and is slidably connected to the slideway, and the lower part of the connecting rod is detachably connected to the screen.

[0016] Furthermore, fixing holes are opened on both sides of the upper end of the screen, the lower part of the connecting rod passes through the fixing holes, the outer wall of the lower part of the connecting rod is provided with threads, the lower part of the connecting rod is connected to a nut through threads, and the nut is tightly attached to the lower end surface of the screen.

[0017] Beneficial effects of the present invention:

[0018] 1. By splicing two movable scraper seats outside the cutting knife, connecting two pull ropes to the movable scraper seats, and fixing the movable scraper seats with bolts, when the Y-tube rotates and uses the cutting knife to cut pellets under the extrusion plate, the extrusion plate under the Y-tube pushes the T-shaped stopper to slide along the circular track, so that one of the pull ropes can be used to pull the movable scraper seat to slide along the cutting knife to scrape off the protective slag material remaining on the surface of the cutting knife. In this way, the cutting knife is fully surrounded for scraping without dead angles, which improves the use effect;

[0019] 2. After the T-shaped stopper moves in a circular motion at an angle of 90 degrees, it will push the T-shaped stopper until the block is pressed and moves into the side groove. Then the T-shaped stopper will be automatically unlocked and can rotate without blocking the extrusion plate. After the extrusion plate moves over the top of the T-shaped stopper, the T-shaped stopper will automatically reset to a vertical state through the torsion spring. At the same time, due to inertia, the block can be re-engaged in the groove to connect with the T-shaped stopper. In this way, the T-shaped stopper can be repeatedly used to make the movable scraper seat move back and forth repeatedly, without the need to add an electric drive structure, which is more energy-saving.

[0020] 3. By arranging a rotating shaft, a rope wheel and a spring spring in the hollow connecting seat, another pull rope is automatically wound up, and the pull rope is used to pull the movable scraper seat to automatically return to its position, so as to facilitate the movable scraper seat to automatically move back and forth left and right;

[0021] 4. By setting the telescopic rod and the buffer spring, the mobile scraper seat can play a buffering role when the pull rope pulls the mobile scraper seat to automatically return to its original position, so as to avoid the mobile scraper seat from directly colliding with the hollow connecting seat due to inertia and deformation of the hollow connecting seat. At the same time, when the mobile scraper seat contacts the telescopic rod, it can also help the crystallizer protection slag material stuck on the surface of the mobile scraper seat to fall off;

[0022] 5. By setting a screen at the lower end of the collecting box, the T-shaped slider can be used to drive the connecting rod to move in a circular motion while the T-shaped baffle rod moves in a circular motion. Since the connecting rod is connected to the screen, the screen can be driven to rotate ninety degrees and then reset. Since the outer diameter of the granulated crystallizer protection slag is larger than the aperture of the screen, and the residual crystallizer protection slag raw material is smaller than the aperture of the screen, the crystallizer protection slag falls on the screen one by one, and the scraped and residual crystallizer protection slag raw material can fall out of the collecting box through the screen, which makes it convenient to separate the granulated crystallizer protection slag from the residual crystallizer protection slag raw material and reduces the workload of manual separation in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall schematic diagram of the present invention;

[0024] Figure 2 For the present invention Figure 1 A partial enlarged view of;

[0025] Figure 3 It is a schematic diagram of the movable scraper seat of the present invention;

[0026] Figure 4 It is a cross-sectional schematic diagram of the concave seat of the present invention;

[0027] Figure 5 It is a top view cross-sectional schematic diagram of the hollow connecting seat of the present invention;

[0028] Figure 6 It is a top view cross-sectional schematic diagram of the circular track of the present invention;

[0029] Figure 7 It is a schematic cross-sectional diagram of the circular track of the present invention when viewed from above;

[0030] Figure 8 It is a schematic diagram of the screen of the present invention.

[0031] In the figure: 1-collection box, 2-fixed rod, 3-feeding pipe, 4-rotating joint, 5-Y-tube, 6-driven gear, 7-motor, 8-driving gear, 9-extrusion plate, 10-cutting knife, 11-hollow connecting seat, 12-moving scraper seat, 13-guide rod, 14-annular track, 15-sliding rod, 16-concave seat, 17-T-type baffle, 18-screen, 19-pull rope, 20-telescopic rod, 21-buffer spring, 22-knife cavity, 23-guide hole, 24-limiting groove, 25-rope mouth, 26-rope head, 27-axle rod, 28-torsion spring, 29-side groove, 30-compression spring, 31-block, 32-slot, 33-baffle, 34-rotating shaft, 35-ropes, 36-spring spring, 37-T-type slider, 38-slideway, 39-connecting rod, 40-nut. DETAILED DESCRIPTION

[0032] See also Figure 1 A granulator for mold protection slag, comprising a collecting box 1, wherein fixing rods 2 are fixed on both sides of the upper end of the collecting box 1, a feeding pipe 3 is fixed between the upper parts of the fixing rods 2, a rotating joint 4 is connected to the lower part of the feeding pipe 3, a Y-shaped tube 5 is connected to the lower part of the rotating joint 4, a driving device is installed on the side of the feeding pipe 3, the driving device is transmission-connected to the Y-shaped tube 5, the driving device comprises a motor 7, a driving gear 8 and a driven gear 6, the motor 7 is fixedly installed on the side of the feeding pipe 3, the driving gear 8 is fixed on the motor 7, and the driving gear 8 is fixed on the motor 7. At the end of the driving shaft of the machine 7, the driven gear 6 is fixed on the outside of the Y-shaped tube 5, the driving gear 8 is meshed and connected with the driven gear 6, and extrusion plates 9 are fixed at both ends of the lower part of the Y-shaped tube 5. The crystallizer protection slag raw material enters through the feed pipe 3, and then falls into the Y-shaped tube 5 through the rotary joint 4, and finally is extruded in strips from the extrusion plate 9 under the Y-shaped tube 5. In this process, the motor 7 drives the driving gear 8 to rotate, and the driving gear 8 is meshed with the driven gear 6, so that the driven gear 6 drives the Y-shaped tube 5 to rotate, so that the two extrusion plates 9 move in a circular motion.

[0033] See also Figure 1-Figure 3A cutting knife 10 is fixed on the upper sides of the left and right ends of the inner wall of the collecting box 1, the squeezing plate 9 is located above the cutting knife 10, a hollow connecting seat 11 is fixed between the cutting knives 10, a rope winding assembly is installed on the left and right sides of the hollow connecting seat 11, the cutting knife 10 is slidably connected to the outside of the scraping assembly, and both ends of the scraping assembly are connected to a pull rope 19, one end of which is connected to the rope winding assembly, and the rope winding assembly includes a rotating shaft 34, a rope wheel 35 and a spring spring 36, the rotating shaft 34 is rotatably connected to the inside of the hollow connecting seat 11, and the rope wheel 35 is connected to the spring spring 36. The spring 36 is fixed to the outside of the rotating shaft 34, and the spring 36 is installed on the outside of the rotating shaft 34. The two ends of the spring 36 are respectively connected to the outer wall of the rotating shaft 34 and the inner wall of the hollow connecting seat 11. One end of the pull rope 19 is movable through the inside of the hollow connecting seat 11 and connected to the rope wheel 35. The scraper assembly includes a pair of movable scraper seats 12, and the movable scraper seats 12 are symmetrically arranged and fixed by bolts. A knife cavity 22 is opened on the upper side of one end of the movable scraper seats 12 that is close to each other. The cutting knife 10 is located inside the knife cavity 22 and is slidably connected to the knife cavity 22. The movable scraper seats 12 are relatively Limiting grooves 24 are provided on both sides of the middle of the ends close to each other, and rope openings 25 are provided at the outer ends of the limiting grooves 24. A rope head 26 is fixed to the head end of the pull rope 19, and the rope head 26 is inserted into the limiting groove 24. The pull rope 19 is located inside the rope opening 25. Because the extrusion plate 9 moves in a circular motion above the cutting knife 10, the crystallizer protection slag raw material extruded from the extrusion plate 9 contacts the cutting knife 10, and the cutting knife 10 pelletizes the crystallizer protection slag raw material. After pelletizing, a pull rope 19 can pull the movable scraper seat 12 to slide along the cutting knife 10, so as to scrape off the cutting knife 10. The protective slag material remaining on the surface is completely surrounded by the cutting knife 10 for scraping off, without dead angles, thereby improving the use effect. The moving scraper seat 12 will drive another pull rope 19 to move, and this pull rope 19 can be unwound from the outside of the rope wheel 35. At the same time, the rope wheel 35 drives the rotating shaft 34 to contract the spring 36. In this way, when the pull rope 19 no longer pulls the moving scraper seat 12 to move, the spring 36 is reset, and the rope wheel 35 can reel in another pull rope 19, and the other pull rope 19 can pull the moving scraper seat 12 to reset, which is conducive to the moving scraper seat 12 sliding back and forth along the cutting knife 10;

[0034] A guide hole 23 is opened on the lower side of one end of the movable scraper seat 12 that is close to each other, and a guide rod 13 is provided between the cutting knife 10 and the annular track 14. The guide rod 13 is slidably connected inside the guide hole 23. The two ends of the guide rod 13 are respectively fixed to the collecting box 1 and the hollow connecting seat 11. When the movable scraper seat 12 slides back and forth along the cutting knife 10, it will slide along the guide rod 13. The guide rod 13 is used to guide and limit the movable scraper seat 12.

[0035] See also Figure 1-Figure 7The inner wall of the collecting box 1 and below the cutting knife 10 is fixed with an annular track 14, and the left and right sides of the annular track 14 are symmetrically slidably connected with T-shaped sliders 37, and the end of the other pull rope 19 is movable through the inside of the annular track 14 and fixed to the T-shaped slider 37, and the inner end of the T-shaped slider 37 is fixed with a slide bar 15, and the end of the slide bar 15 is fixed with a concave seat 16, and a baffle 33 is fixed to the upper part of one surface of the concave seat 16, and the concave seat 16 is rotatably connected with a shaft rod 27 inside, and a torsion spring 28 is installed outside the shaft rod 27, and the upper end of the shaft rod 27 is fixed with a baffle 33 The T-shaped baffle 17 is abutted against each other, and blocks 31 are elastically connected on both sides of the lower part of the T-shaped baffle 17, and the blocks 31 are plugged into the concave seat 16. Side grooves 29 are opened on both sides of the lower part of the T-shaped baffle 17, and the blocks 31 are located inside the side grooves 29. A compression spring 30 is connected between the blocks 31 and the bottom of the side grooves 29. Slots 32 are opened at both ends of the inner wall of the concave seat 16, and the blocks 31 are plugged into the slots 32. The side of the block 31 close to the slots 32 is an arc surface, and one side of the T-shaped baffle 17 is in contact with the extrusion plate 9. When the cutting knife 10 performs pelletizing work on the crystallizer protective slag raw material, the extrusion plate 9 will push the T-shaped stopper 17, so that the T-shaped stopper 17 drives the T-shaped slider 37 to slide along the annular track 14 through the slide bar 15, and the T-shaped slider 37 pulls a pull rope 19, and the pull rope 19 pulls the movable scraper seat 12 to slide close to the annular track 14. After the T-shaped slider 37 slides along the annular track 14 at an angle of ninety degrees, the extrusion plate 9 will push the T-shaped stopper 17 until the block 31 is squeezed by the inner wall of the card slot 32 and moves into the side groove 29, and the block 31 will squeeze the compression spring 30, so that the T-shaped stopper 17 is automatically unlocked, and it can be rotated through the shaft 27 until it no longer blocks the extrusion plate 9, at this time, the torsion spring 28 is contracted until the extrusion plate 9 is squeezed. After the material plate 9 moves over the T-shaped baffle rod 17, the torsion spring 28 automatically resets the T-shaped baffle rod 17 to a vertical position. At this time, the baffle plate 33 blocks the T-shaped baffle rod 17 to ensure that the T-shaped baffle rod 17 is in a vertical position due to the torsion spring 28. In this process, due to inertia, the clamping block 31 can first be squeezed against the inner wall of the concave seat 16 to move into the side groove 29. Then, after the clamping block 31 corresponds to the clamping groove 32, the compression spring 30 is re-engaged in the clamping groove 32 to limit the T-shaped baffle rod 17. In this way, the T-shaped baffle rod 17 can be repeatedly used to make the movable scraper seat 12 move back and forth repeatedly without the need to add an electric drive structure, which is more energy-efficient.

[0036] See also Figure 2A telescopic rod 20 is fixed to the outer side of the left and right ends of the hollow connecting seat 11, and a buffer spring 21 is provided on the outer side of the telescopic rod 20. The head end of the buffer spring 21 is fixed to the hollow connecting seat 11, and the end of the buffer spring 21 is fixed to the end of the telescopic rod 20. The end of the telescopic rod 20 contacts the movable scraper seat 12. When the pull rope 19 pulls the movable scraper seat 12 to automatically return to its position close to the hollow connecting seat 11, the movable scraper seat 12 squeezes the telescopic rod 20 to compress the buffer spring 21, which plays a buffering role for the movable scraper seat 12, avoiding the movable scraper seat 12 from directly colliding with the hollow connecting seat 11 due to inertia, and avoiding deformation of the hollow connecting seat 11. At the same time, when the movable scraper seat 12 contacts the telescopic rod 20, it is also beneficial for the crystallizer protective slag raw material adhered to the surface of the movable scraper seat 12 to fall off.

[0037] See also Figure 1-Figure 8 The lower end of the collecting box 1 is an open end, and the lower end of the collecting box 1 is tightly attached to the screen 18. A slideway 38 is opened at the bottom end of the annular track 14, and a connecting rod 39 is fixed to the lower end of the T-shaped slider 37. The lower part of the connecting rod 39 extends out of the slideway 38 and is slidably connected to the slideway 38. The lower part of the connecting rod 39 is detachably connected to the screen 18. Fixing holes are opened on both sides of the upper end of the screen 18. The lower part of the connecting rod 39 passes through the fixing holes. The outer wall of the lower part of the connecting rod 39 is provided with a thread. The lower part of the connecting rod 39 is connected to a nut 40 through a thread. The nut 40 is tightly attached to the lower end surface of the screen 18. After the screen 18 passes through the fixing hole through the connecting rod 39, it is fixed with the nut 40. 0 is tightened on the outside of the connecting rod 39, so when the T-shaped stopper 17 is in a circular motion, the T-shaped slider 37 is used to drive the connecting rod 39 to move in a circular motion along the slide 38 at the same time, so that the screen 18 can be driven to rotate ninety degrees and then reset. Since the outer diameter of the granulated crystallizer protection slag is larger than the aperture of the screen 18, and the residual crystallizer protection slag raw material is smaller than the aperture of the screen 18, the crystallizer protection slag falls on the screen 18 one by one, and the scraped and residual crystallizer protection slag raw material can pass through the screen 18 and fall out of the collection box 1, which is convenient for separating the granulated crystallizer protection slag from the residual crystallizer protection slag raw material and reduces the workload of manual separation in the later stage.

[0038] Working principle: First, the mold protection slag raw material enters through the feed pipe 3, then falls into the Y-tube 5 through the rotary joint 4, and finally is extruded in strips from the extrusion plate 9 under the Y-tube 5. During this process, the motor 7 drives the active gear 8 to rotate, and the active gear 8 meshes with the driven gear 6, so that the driven gear 6 drives the Y-tube 5 to rotate, so that the two extrusion plates 9 move in a circular motion. In this way, the mold protection slag raw material extruded from the extrusion plate 9 contacts the cutting knife 10, and the cutting knife 10 pelletizes the mold protection slag raw material, and at the same time the extrusion plate 9 pushes The T-shaped stopper 17 is moved, so that the T-shaped stopper 17 drives the T-shaped slider 37 to slide along the annular track 14 through the slide bar 15, and the T-shaped slider 37 pulls a pull rope 19, and the pull rope 19 pulls the movable scraper seat 12 to slide close to the annular track 14. At this time, the movable scraper seat 12 slides along the cutting knife 10 to scrape off the protective slag material remaining on the surface of the cutting knife 10, and the movable scraper seat 12 drives another pull rope 19 to move, and this pull rope 19 can be unwound from the outside of the rope wheel 35. At the same time, the rope wheel 35 drives the rotating shaft 34 to contract the clockwork spring 36, and the T-shaped slider After the extrusion plate 9 slides along the annular track 14 at an angle of ninety degrees, the extrusion plate 9 will push the T-shaped stopper 17 until the block 31 is squeezed by the inner wall of the card slot 32 and moves into the side groove 29. In this way, the T-shaped stopper 17 is automatically unlocked and can be rotated through the shaft 27 to no longer block the extrusion plate 9. Until the extrusion plate 9 moves over the top of the T-shaped stopper 17, the torsion spring 28 automatically resets the T-shaped stopper 17 to a vertical state. In this process, the block 31 can first be squeezed against the inner wall of the concave seat 16 and moved into the side groove 29 due to inertia, and then as the block 31 corresponds to the card slot 32, the The over-compression spring 30 is re-engaged in the slot 32 to limit the T-shaped baffle 17. In this way, when the pull rope 19 no longer pulls the movable scraper seat 12 to move, the clockwork spring 36 is reset, and the rope wheel 35 can reel in another pull rope 19, and the other pull rope 19 can pull the movable scraper seat 12 to reset. The movable scraper seat 12 is reset by pulling the T-shaped slider 37 through the pull rope 19, so that the T-shaped baffle 17 can be reset in a circular motion, which is conducive to the movable scraper seat 12 sliding back and forth along the cutting knife 10, so that the crystallizer protective slag raw material can be repeatedly pelletized.

Claims

1. A granulator for mold powder, comprising a collecting box (1), wherein fixing rods (2) are fixed on both sides of the upper end of the collecting box (1), and a feed pipe (3) is fixed between the upper parts of the fixing rods (2), characterized in that: The lower part of the feed pipe (3) is connected to a rotary joint (4), the lower part of the rotary joint (4) is connected to a Y-shaped tube (5), a driving device is installed on the side of the feed pipe (3), the driving device is in driving connection with the Y-shaped tube (5), and extrusion plates (9) are fixed at both ends of the lower part of the Y-shaped tube (5); A cutting knife (10) is fixed on the upper sides of both left and right ends of the inner wall of the collection box (1), the extrusion plate (9) is located above the cutting knife (10), a hollow connecting seat (11) is fixed between the cutting knives (10), a rope winding assembly is installed on the left and right sides of the hollow connecting seat (11), a scraping assembly is slidably connected to the outside of the cutting knife (10), and both ends of the scraping assembly are connected to a pull rope (19), one end of which is connected to the rope winding assembly, an annular track (14) is fixed on the inner wall of the collection box (1) and located below the cutting knife (10), a T-shaped slider (37) is symmetrically slidably connected to the left and right sides of the inside of the annular track (14), and the other end of the pull rope (19) movably passes through the inside of the annular track (14) and is fixed to the T-shaped slider (37); A slide bar (15) is fixed to the inner end of the T-shaped slider (37), a concave seat (16) is fixed to the end of the slide bar (15), a baffle (33) is fixed to the upper part of one surface of the concave seat (16), a shaft (27) is rotatably connected inside the concave seat (16), a torsion spring (28) is installed outside the shaft (27), a T-shaped baffle (17) abutting against the baffle (33) is fixed to the upper end of the shaft (27), a clamping block (31) is elastically connected to both sides of the lower part of the T-shaped baffle (17), the clamping block (31) is plugged into the concave seat (16), and one side of the T-shaped baffle (17) is in contact with the extrusion plate (9).

2. The granulator for mold powder according to claim 1, characterized in that: The driving device comprises a motor (7), a driving gear (8) and a driven gear (6); the motor (7) is fixedly mounted on the side of the feed pipe (3); the driving gear (8) is fixed to the end of the drive shaft of the motor (7); the driven gear (6) is fixed to the outside of the Y-shaped tube (5); and the driving gear (8) is meshedly connected with the driven gear (6).

3. The granulator for mold powder according to claim 1, characterized in that: The rope winding assembly comprises a rotating shaft (34), a rope wheel (35) and a spring (36); the rotating shaft (34) is rotatably connected to the inside of a hollow connecting seat (11); the rope wheel (35) is fixed to the outside of the rotating shaft (34); the spring (36) is installed on the outside of the rotating shaft (34); the two ends of the spring (36) are respectively connected to the outer wall of the rotating shaft (34) and the inner wall of the hollow connecting seat (11); one end of the pull rope (19) movably passes through the inside of the hollow connecting seat (11) and is connected to the rope wheel (35).

4. The granulator for mold powder according to claim 1, characterized in that: The scraper assembly comprises a pair of movable scraper seats (12), the movable scraper seats (12) are symmetrically arranged and fixed by bolts, a knife cavity (22) is opened on the upper side of the ends of the movable scraper seats (12) close to each other, the cutting knife (10) is located inside the knife cavity (22) and is slidably connected to the knife cavity (22), limiting grooves (24) are opened on both sides of the middle of the ends of the movable scraper seats (12) close to each other, a rope opening (25) is opened at the outer end of the limiting groove (24), a rope head (26) is fixed at the head end of the pull rope (19), the rope head (26) is inserted into the limiting groove (24), and the pull rope (19) is located inside the rope opening (25).

5. The granulator for mold powder according to claim 4, characterized in that: A guide hole (23) is formed at the lower side of one end of the movable scraper seat (12) close to each other, a guide rod (13) is provided between the cutting knife (10) and the annular track (14), the guide rod (13) is slidably connected inside the guide hole (23), and the two ends of the guide rod (13) are respectively fixed to the collection box (1) and the hollow connecting seat (11).

6. The granulator for mold powder according to claim 4, characterized in that: Telescopic rods (20) are fixed to the outside of the left and right ends of the hollow connecting seat (11), and a buffer spring (21) is provided on the outside of the telescopic rod (20). The head end of the buffer spring (21) is fixed to the hollow connecting seat (11), and the end of the buffer spring (21) is fixed to the end of the telescopic rod (20). The end of the telescopic rod (20) contacts the movable scraper seat (12).

7. The granulator for mold powder according to claim 1, characterized in that: Side grooves (29) are formed on both sides of the lower part of the T-shaped blocking rod (17), the clamping block (31) is located inside the side grooves (29), a compression spring (30) is connected between the clamping block (31) and the bottom of the side grooves (29), clamping grooves (32) are formed on both ends of the inner wall of the concave seat (16), the clamping block (31) is plugged into the clamping grooves (32), and a side of the clamping block (31) close to the clamping groove (32) is an arc surface.

8. The granulator for mold powder according to claim 1, characterized in that: The lower end of the collecting box (1) is an open end, and a screen (18) is closely attached to the lower end of the collecting box (1).

9. The granulator for mold powder according to claim 8, characterized in that: A slideway (38) is provided at the bottom of the inner part of the annular track (14), a connecting rod (39) is fixed to the lower end of the T-shaped slider (37), the lower part of the connecting rod (39) extends out of the slideway (38) and is slidably connected to the slideway (38), and the lower part of the connecting rod (39) is detachably connected to the screen (18).

10. The granulator for mold powder according to claim 9, characterized in that: The upper ends of the sieve (18) are provided with fixing holes on both sides, and the lower part of the connecting rod (39) passes through the fixing holes. The lower outer wall of the connecting rod (39) is provided with threads. The lower part of the connecting rod (39) is connected to a nut (40) through threads, and the nut (40) is tightly attached to the lower end surface of the sieve (18).

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