A powder conveying equipment for melamine powder production

Abstract

This invention relates to the field of melamine powder production technology, specifically a powder conveying device for melamine powder production, comprising: a guide box, wherein a feed pipe is fixedly connected to the top wall of the guide box and a discharge pipe is fixedly connected to the bottom wall of the guide box; a dustproof crushing unit, which is connected to the guide box and arranged around the outside of the feed pipe; and a lifting conveying unit, which is located on the outside of the bottom of the guide box, connected to the guide box, slidably connected to the discharge pipe, and connected to the dustproof crushing unit; wherein the dustproof crushing unit includes: a screening crushing component, a gas guiding control component, a protective dust blocking component, and an anti-wall-hanging component. By setting up the dustproof crushing unit, not only can the powder be pulverized in multiple cycles, but the dust emitted during crushing can also be absorbed and stored in a timely manner, ensuring the cleanliness of the operating environment and enabling stable conveying of the powder.

Description

Technical Field

[0001] The invention relates to the technical field of melamine powder production, in particular to powder conveying equipment for melamine powder production. Background Art

[0002] Melamine formaldehyde molding compound, commonly known as melamine powder, is a thermosetting plastic made of a resin formed by the co-condensation of formaldehyde and melamine and various additives. It is a type of amino molding compound with the advantages of easy molding, low molding shrinkage, high dimensional accuracy, good processing performance, etc. It can be widely used in imitation porcelain tableware, medium and low voltage electrical appliances, and other flame retardant products.

[0003] When producing melamine powder, the powder needs to be screened and conveyed. When the powder is screened by a vibrating screen, the dust is large, which not only affects people's understanding of the conveying situation, but also causes harm to the workers' bodies. Therefore, in view of the above situation, it is urgent to develop a powder conveying equipment for melamine powder production to overcome the shortcomings in current practical applications. Summary of the invention

[0004] The object of the present invention is to provide a powder conveying device for melamine powder production to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A powder conveying equipment for melamine powder production comprises: a material guide box, a feed pipe is fixedly connected to the top box wall of the material guide box, and a discharge pipe is fixedly connected to the bottom box wall; a dust-proof crushing unit, the dust-proof crushing unit is connected to the material guide box, and is arranged around the outside of the feed pipe, for cooperating with the material guide box to realize powder crushing, and realize absorption and storage of scattered dust; a lifting and falling feeding unit, the lifting and falling feeding unit is arranged on the outside of the bottom end of the material guide box, connected to the material guide box, slidably connected to the discharge pipe, and connected to the dust-proof crushing unit, for realizing support for the material guide box and powder conveying, and synchronously driving the material guide box to perform reciprocating lifting and lowering operation, so as to realize multi-directional crushing of the powder located inside the material guide box by the dust-proof crushing unit; wherein, the dust-proof crushing unit comprises: a screening crushing component, an air-guiding transmission and control component, and a protective dust-blocking component. The screening type crushing assembly is arranged between the feed pipe and the discharge pipe and is fixedly connected to the material guide box. The screening type crushing assembly is connected to the air-conducting transmission and control assembly arranged on the outside of the material guide box. The air-conducting transmission and control assembly is connected to the material guide box and to the lifting and falling feeding unit, which is used to drive the screening type crushing assembly to realize transverse cutting of the powder and cooperate with the lifting and falling feeding unit to realize longitudinal cutting of the powder by the screening type crushing assembly. The air-conducting transmission and control assembly is also connected to the protective dust-blocking assembly arranged around the outside of the feed pipe, which is used to cooperate with the air-conducting transmission and control assembly to realize the absorption and storage of dust dispersed during powder crushing. An anti-hanging wall assembly abutting against the inner wall of the material guide box is arranged between the screening type crushing assembly and the discharge pipe. The anti-hanging wall assembly is connected to the screening type crushing assembly, which is used to cooperate with the screening type crushing assembly to realize the cleaning of the inner wall of the material guide box.

[0007] As a further solution of the present invention: the screening type crushing assembly includes: a screening plate, a support column, a crushing knife, a connecting column, a rotating rod, a cutting knife, a drive control tooth and a positioning guide block. The screening plate is fixedly connected to the inner side of the material guide box, and the screening plate is rotatably connected with a support column. The bottom end of the support column is connected to the anti-hanging wall assembly, and a connecting column is slidably connected to the top shell wall. One end of the connecting column is fixedly connected to the drive control tooth arranged on the inner side of the support column, and the other end is connected to the air-guided transmission control assembly, which is used to cooperate with the air-guided transmission control assembly to realize the longitudinal limitation of the drive control tooth. The drive control tooth is fixedly connected to the fixed connection column. The cam is provided with a plurality of cutting knives which are fixedly connected to the rotating rod, and a transmission gear which is meshed with the driving and controlling teeth is also fixedly connected to the rotating rod, so as to cooperate with the lifting and lowering driving mechanism of the material guide box to drive the rotating rod to rotate, so as to realize the longitudinal cutting and crushing of the powder located inside the material guide box; and a plurality of crushing knives which are fixedly connected to the supporting column are provided on the outer side of the rotating rod, so as to cooperate with the rotation of the supporting column to realize the transverse cutting and crushing of the powder located inside the material guide box.

[0008] As a further solution of the present invention: the air-guided transmission control component includes: a fixed frame, a servo motor, an air control box, a driving rod, a fan, a driving gear, a connecting sleeve and a connecting duct. The servo motor is fixedly connected to the outside of the top of the material guide box, the output end of the servo motor is fixedly connected to the driving rod, the outside of the driving rod is provided with an air control box fixedly connected to the material guide box, the inside of the air control box is provided with a fan fixedly connected to the driving rod, and a connecting duct is fixedly connected to the box wall at the bottom end of the air control box. The other end of the connecting duct is connected to the protective dust-blocking component to cooperate with the rotation of the fan to realize the absorption of the scattered dust by the protective dust-blocking component. The outside of the driving rod is also provided with a fan fixedly connected to the driving rod. A connecting sleeve is provided, which is rotatably connected to a fixed frame fixedly connected to the outside of the lifting and lowering feeding unit. A synchronous slide groove is provided on the inner wall of the connecting sleeve, and a synchronous slider fixedly connected to the driving rod is slidably connected to the inner side of the synchronous slide groove, which is used to realize the synchronous rotation of the driving rod and the connecting sleeve. The fixed frame is also rotatably connected to the connecting column to cooperate with the lifting and lowering feeding unit to realize the support of the connecting column. The connecting column and the connecting sleeve are connected by a belt transmission part. A driving gear is also fixedly connected to the outside of the driving rod. The driving gear is connected to the protective dust-blocking assembly, which is used to cooperate with the rotation of the driving rod to realize the self-cleaning of the protective dust-blocking assembly.

[0009] As a further solution of the present invention: the protective dust-blocking assembly includes: a protective sleeve, an annular filter frame, a dust-blocking tube, an annular frame, a driven gear and a cleaning brush. The protective sleeve is arranged around the outside of the feed pipe and is fixedly connected to the material guide box, and the outer wall is fixedly connected to the connecting conduit. A plurality of dust-blocking tubes are fixedly connected to the box wall on the side of the protective sleeve close to the feed pipe, and an annular filter frame is also fixedly connected to the inner side of the protective sleeve. A cleaning brush is arranged between the annular filter frame and the dust-blocking tube, the cleaning brush abuts the annular filter frame and is fixedly connected to the annular frame, the annular frame is rotatably connected to the top shell wall of the protective sleeve, and a driven gear meshing with the driving gear is fixedly connected to the outside, which is used to cooperate with the rotation of the driving gear to realize the cleaning of the surface of the annular filter frame by the cleaning brush.

[0010] As a further solution of the present invention: the anti-wall hanging assembly includes: a scraper plate, a connecting rod and a limit swivel. The scraper plate is arranged around the outside of the bottom end of the screening plate and abuts against the inner wall of the material guide box. A connecting rod is fixedly connected between the scraper plate and the support column. A limit swivel is fixedly connected to the outside of the scraper plate. The limit swivel is slidably connected to the annular groove arranged on the inner wall of the material guide box.

[0011] As a further solution of the present invention: the lifting and falling material feeding unit comprises: a supporting base, a supporting plate, a material feeding pipe, a supporting frame, a receiving pipe, a control motor, a control rod, a spiral push rod, a material feeding trough, a control chamber and an automatic lifting and falling assembly, the supporting base is arranged on the outer side of the bottom end of the material guide box, the inner sides of both ends of the supporting base are slidably connected with support plates, a spring is fixedly connected between the support plate and the supporting base, the other end of the supporting plate is fixedly connected to the material guide box, a material feeding pipe is arranged on the inner side of the supporting base, support frames are fixedly connected on both sides of the material feeding pipe, the other end of the supporting frame is fixedly connected to the supporting base, a material feeding trough and a control chamber are arranged on the inner side of the material feeding pipe, the material feeding trough is connected to a receiving pipe fixedly connected to the material feeding pipe, the other end of the receiving pipe is slidably connected to the feeding pipe, a control motor fixedly connected to the material feeding pipe is arranged on the inner side of the control chamber, the output end of the control motor is fixedly connected to the control rod, the control rod is fixedly connected to the spiral push rod arranged on the inner side of the material feeding trough, and is connected to the automatic lifting and falling assembly, the automatic lifting and falling assembly is connected to the material guide box, and is used to cooperate with the rotation of the control rod to realize the reciprocating motion of the material guide box.

[0012] As a further solution of the present invention: the automatic lifting and landing assembly includes: an elliptical rotating wheel, a movable plate, a positioning slider and a push-pull rod. The elliptical rotating wheel is fixedly connected to the outside of the control rod, and movable plates are abutted on the outside of both ends of the elliptical rotating wheel. A positioning slider slidably connected to the support frame is fixedly connected to the outside of the movable plate. A push-pull rod is arranged between the movable plate and the material guide box, one end of the push-pull rod is rotatably connected to the movable plate, and the other end is rotatably connected to the wall of the material guide box, which is used to cooperate with the rotation of the elliptical rotating wheel to realize the reciprocating motion of the material guide box.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] When the device is running, the powder enters the inner side of the material guide box along the feed pipe, and the air-guided transmission control component drives the screening type crushing component to cut and crush the powder inside the material guide box horizontally, and the screening type crushing component screens the crushed powder. The screened powder enters the inner side of the lifting and lowering feeding unit along the material guide box and the discharge pipe. The lifting and lowering feeding unit can not only transport the powder, but also realize the up and down reciprocating motion of the material guide box. When the material guide box moves, it can cooperate with the air-guided transmission control component to drive the screening type crushing component to cut and crush the powder longitudinally, and realize the cyclic crushing of the uncrushed powder, thereby ensuring the comprehensiveness of the powder crushing. The screening type crushing component can also drive the anti-wall hanging component to clean the inner wall of the material guide box, thereby ensuring the comprehensiveness of the feeding. The screening type crushing component can also drive the protective dust blocking component during operation. The protective dust blocking component can absorb and store the dust emitted from the feed pipe during the crushing process to avoid the dust affecting the operator's operation. Compared with the prior art, when producing melamine powder, the powder needs to be screened and conveyed. When the powder is screened by a vibrating screen, the dust is large, which not only affects people's understanding of the conveying situation, but also causes harm to the health of the staff. By setting a dust-proof crushing unit and cooperating with a lifting and falling feeding unit, not only can the powder be crushed in multiple cycles, but also the dust emitted during the crushing can be absorbed and stored in time, thereby ensuring the cleanliness of the operating environment and stably conveying the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of powder conveying equipment for melamine powder production.

[0016] Figure 2 This is a cross-sectional view of a powder conveying device for melamine powder production.

[0017] Figure 3 This is a schematic diagram of the structure of the screening type crushing component in the powder conveying equipment for melamine powder production.

[0018] Figure 4 This is a cross-sectional view of a screening type crushing component in a powder conveying device for producing melamine powder.

[0019] Figure 5 This is a schematic diagram of the structure of the air-conducting transmission and control components in the powder conveying equipment for melamine powder production.

[0020] Figure 6 This is a schematic diagram of the structure of the protective dust-blocking component in the powder conveying equipment used in the production of melamine powder.

[0021] Figure 7 This is a schematic diagram of the structure of the annular filter frame in the powder conveying equipment for melamine powder production.

[0022] Figure 8This is a schematic diagram of the structure of the anti-wall hanging component in the powder conveying equipment used in the production of melamine powder.

[0023] Fig. 9 This is a schematic diagram of the structure of the lifting and lowering feeding unit in the powder conveying equipment for melamine powder production.

[0024] Fig.10 This is a schematic diagram of the structure of the automatic lifting and lowering components in the powder conveying equipment used in the production of melamine powder.

[0025] In the figure: 1- material guide box, 2- lifting and lowering feeding unit, 3- dustproof crushing unit, 4- feeding pipe, 5- feeding pipe, 6- screening crushing assembly, 7- air-guided transmission control assembly, 8- protective dust-blocking assembly, 9- anti-wall hanging assembly, 10- screening plate, 11- supporting column, 12- crushing knife, 13- connecting column, 14- rotating rod, 15- cutting knife, 16- driving control tooth, 17- positioning guide block, 18- transmission gear, 19- fixing frame, 20- servo motor, 21- air control box, 22- driving rod, 23- fan, 24- driving gear, 25- connecting rod Connecting sleeve, 26-connecting duct, 27-protective sleeve, 28-annular filter frame, 29-dust blocking pipe, 30-annular frame, 31-driven gear, 32-cleaning brush, 33-scraper plate, 34-connecting rod, 35-limiting swivel, 36-support base, 37-support plate, 38-feeding pipe, 39-support frame, 40-receiving pipe, 41-control motor, 42-control rod, 43-screw push rod, 44-automatic lifting and lowering assembly, 45-elliptical rotor, 46-movable plate, 47-positioning slider, 48-push-pull rod, 49-feeding trough, 50-control chamber. DETAILED DESCRIPTION

[0026] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0027] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0028] See also Figure 1 and Figure 2In one embodiment of the present invention, a powder conveying device for melamine powder production includes: a material guide box 1, a feed pipe 5 is fixedly connected to the top box wall of the material guide box 1, and a discharge pipe 4 is fixedly connected to the bottom box wall; a dust-proof crushing unit 3, the dust-proof crushing unit 3 is connected to the material guide box 1, and is arranged around the outside of the feed pipe 5, for cooperating with the material guide box 1 to realize the crushing of powders, and to realize the absorption and storage of scattered dust; a lifting and falling feeding unit 2, the lifting and falling feeding unit 2 is arranged on the outside of the bottom end of the material guide box 1, connected to the material guide box 1, slidably connected to the discharge pipe 4, and connected to the dust-proof crushing unit 3, for realizing the support of the material guide box 1 and the conveying of powders, and synchronously driving the material guide box 1 to perform reciprocating lifting and lowering operation, so as to realize the multi-directional crushing of the powder located inside the material guide box 1 by the dust-proof crushing unit 3; wherein, the dust-proof crushing unit 3 includes: a screening crushing component 6, an air-guiding transmission control component 7, a protective type The dust-blocking component 8 and the anti-hanging wall component 9, the screening type crushing component 6 is arranged between the feed pipe 5 and the discharge pipe 4, and is fixedly connected to the material guide box 1, the screening type crushing component 6 is connected to the air-conducting transmission control component 7 arranged on the outside of the material guide box 1, the air-conducting transmission control component 7 is connected to the material guide box 1, and is connected to the lifting and falling feeding unit 2, and is used to drive the screening type crushing component 6 to achieve transverse cutting of the powder, and cooperate with the lifting and falling feeding unit 2 to achieve longitudinal cutting of the powder by the screening type crushing component 6, the air-conducting transmission control component 7 is also connected to the protective dust-blocking component 8 arranged around the outside of the feed pipe 5, and is used to cooperate with the air-conducting transmission control component 7 to absorb and store the dust dispersed during powder crushing, an anti-hanging wall component 9 abutting against the inner wall of the material guide box 1 is arranged between the screening type crushing component 6 and the discharge pipe 4, and the anti-hanging wall component 9 is connected to the screening type crushing component 6, and is used to cooperate with the screening type crushing component 6 to clean the inner wall of the material guide box 1.

[0029] In this embodiment, when the device is running, the powder enters the inner side of the material guide box 1 along the feed pipe 5, and the air-guided control component 7 drives the screening crushing component 6 to cut and crush the powder located on the inner side of the material guide box 1 horizontally. The screening crushing component 6 screens the crushed powder, and the screened powder enters the inner side of the lifting and lowering feeding unit 2 along the material guide box 1 and the discharge pipe 4. The lifting and lowering feeding unit 2 can not only transport the powder, but also realize the up and down reciprocating motion of the material guide box 1. When the material guide box 1 moves, it can cooperate with the air-guided control component 7 to drive the screening crushing component 6 to cut and crush the powder longitudinally, and realize the cyclic crushing of the uncrushed powder, thereby ensuring the comprehensiveness of the powder crushing. The screening crushing component 6 can also drive the anti-wall hanging component 9 to clean the inner wall of the material guide box 1. , ensuring the comprehensiveness of feeding. The screening crushing component 6 can also drive the protective dust-blocking component 8 during operation. The protective dust-blocking component 8 can absorb and store the dust emitted from the feed pipe 5 during the crushing process to avoid the dust affecting the operator's operation. Compared with the prior art, when producing melamine powder, the present application needs to screen and transport the powder. When the powder is screened by a vibrating screen, the dust is large, which not only affects people's understanding of the transportation situation, but also causes harm to the health of the staff. By setting up a dust-proof crushing unit 3 and cooperating with the lifting and lowering feeding unit 2, not only can the powder be crushed in multiple cycles, but also the dust emitted during the crushing can be absorbed and stored in time, ensuring the cleanliness of the operating environment and stably transporting the powder.

[0030] In one embodiment of the present invention, please refer to Figure 3 and Figure 4The screening type crushing assembly 6 includes: a screening plate 10, a support column 11, a crushing knife 12, a connecting column 13, a rotating rod 14, a cutting knife 15, a driving control tooth 16 and a positioning guide block 17. The screening plate 10 is fixedly connected to the inner side of the material guide box 1, and the screening plate 10 is rotatably connected with the support column 11. The bottom end of the support column 11 is connected to the anti-hanging wall assembly 9, and a connecting column 13 is slidably connected on the top shell wall. One end of the connecting column 13 is fixedly connected to the driving control tooth 16 arranged on the inner side of the support column 11, and the other end is connected to the air-guided transmission control assembly 8, which is used to cooperate with the air-guided transmission control assembly 8 to realize the longitudinal limit of the driving control tooth 16. The driving control tooth 16 is fixedly connected to the support column 11. The positioning guide block 17 on the inner side of the support column 11 is slidably connected to realize the synchronous rotation of the driving and controlling teeth 16 and the support column 11. The shell walls on both sides of the support column 11 are rotatably connected with a rotating rod 14, and a plurality of cutting knives 15 are fixedly connected to the rotating rod 14. The rotating rod 14 is also fixedly connected with a transmission gear 18 meshing with the driving and controlling teeth 16, which is used to cooperate with the lifting and lowering driving rotation of the material guide box 1 to rotate, so as to realize the longitudinal cutting and crushing of the powder located inside the material guide box 1. A plurality of crushing knives 12 fixedly connected to the support column 11 are provided on the outer side of the rotating rod 14, which are used to cooperate with the rotation of the support column 11 to realize the transverse cutting and crushing of the powder located inside the material guide box 1.

[0031] In this embodiment, a positioning groove is provided on the driving control tooth 16, and the positioning groove is slidably connected with the positioning guide block 17 fixedly connected to the inner side of the support column 11. The air-guided transmission control component 7 can drive the connecting column 13 to rotate, and the connecting column 13 drives the driving control tooth 16 to rotate synchronously. The driving control tooth 16 cooperates with the positioning guide block 17 to drive the support column 11 to rotate synchronously, and the support column 11 drives the crushing knife 12 to rotate to complete the transverse cutting and crushing of the powder located on the inner side of the material guide box 1. When the material guide box 1 reciprocates up and down under the drive of the lifting and lowering feeding unit 2, the material guide box 1 will drive the screening plate 10 to rise and fall synchronously, and the screening plate 10 cooperates to drive the support column 11 to rise and fall synchronously, and the support column 11 will The rotating rod 14 is driven to move together, and the transmission gear 18 arranged on the rotating rod 14 moves along the driving control tooth 16. The transmission gear 18 cooperates with the driving control tooth 16 to realize the rotation of the rotating rod 14. The rotating rod 14 drives the cutting knife 15 to rotate, and completes the longitudinal cutting and crushing of the powder located inside the material guide box 1. When the screening plate 10 moves up and down with the material guide box 1, the powder located on the screening plate 10 jumps, thereby realizing the cyclic crushing of the powder. By setting up the screening crushing component 6, the transverse cutting and crushing of the powder and the synchronous longitudinal cutting and crushing can be completed, and the powder can be screened, thereby completing the cyclic crushing of the powder, which greatly improves the classification effect and efficiency, and ensures the continuity and stability of the feeding.

[0032] In one embodiment of the present invention, please refer to Figure 5The air-guided transmission control component 7 includes: a fixed frame 19, a servo motor 20, an air control box 21, a driving rod 22, a fan 23, a driving gear 24, a connecting sleeve 25 and a connecting duct 26. The servo motor 20 is fixedly connected to the outside of the top of the material guide box 1, and the output end of the servo motor 20 is fixedly connected to the driving rod 22. The driving rod 22 is provided with an air control box 21 fixedly connected to the material guide box 1 on the outside, and the air control box 21 is provided with a fan 23 fixedly connected to the driving rod 22 on the inside. A connecting duct 26 is fixedly connected to the box wall at the bottom end of the air control box 21. The other end of the connecting duct 26 is connected to the protective dust-blocking component 8, which is used to cooperate with the rotation of the fan 23 to realize the absorption of the scattered dust by the protective dust-blocking component 8. The outer side of the driving rod 22 is also sleeved A connecting sleeve 25 is provided, which is rotatably connected to a fixed frame 19 fixedly connected to the outside of the lifting and lowering feeding unit 2. A synchronous slide groove is provided on the inner wall of the connecting sleeve 25. A synchronous slider 26 fixedly connected to the driving rod 22 is slidably connected on the inner side of the synchronous slide groove, which is used to realize the synchronous rotation of the driving rod 22 and the connecting sleeve 25. The fixed frame 19 is also rotatably connected to the connecting column 13, which is used to cooperate with the lifting and lowering feeding unit 2 to realize the support of the connecting column 13. The connecting column 13 and the connecting sleeve 25 are connected by a belt transmission member. A driving gear 24 is also fixedly connected to the outside of the driving rod 22. The driving gear 24 is connected to the protective dust-blocking assembly 8, which is used to cooperate with the rotation of the driving rod 22 to realize the self-cleaning of the protective dust-blocking assembly 8.

[0033] In this embodiment, the belt transmission member includes a pulley fixedly connected to the connecting column 13 and the outer side of the connecting sleeve 25, and the pulleys are connected by a belt. The servo motor 20 drives the driving rod 22 to rotate, and the driving rod 22 drives the fan 23 to rotate. The protective dust blocking component 8 absorbs the dust, and the dust-removed air enters the inner side of the air control box 21 along the connecting duct 26 and is discharged from the air outlet set on the top box wall of the air control box 21. The driving rod 22 can also cooperate with the synchronous slider to drive the connecting sleeve 25 to rotate, and the connecting sleeve 25 cooperates with the pulley The belt drives the connecting column 13 to rotate, thereby realizing the rotation of the supporting column 11. The driving rod 22 can also drive the active gear 24 to rotate. The active gear 24 can drive the protective dust-blocking component 8 to complete self-cleaning. By setting the air-conducting transmission control component 7, not only can the flow of air be realized, so that the protective dust-blocking component 8 can absorb dust, but also the screening crushing component 6 can be driven to complete the cutting and crushing of the powder, and the self-cleaning of the protective dust-blocking component 8 can be realized, which greatly improves the dust-proof ability of the equipment and can improve the transportation capacity of the equipment.

[0034] In one embodiment of the present invention, please refer to Figure 6 and Figure 7The protective dust-blocking assembly 8 includes: a protective sleeve 27, an annular filter frame 28, a dust-blocking tube 29, an annular frame 30, a driven gear 31 and a cleaning brush 32. The protective sleeve 27 is arranged around the outside of the feed pipe 5 and is fixedly connected to the material guide box 1, and the outer wall is fixedly connected to the connecting conduit 26. A plurality of dust-blocking tubes 29 are fixedly connected to the box wall of the protective sleeve 27 on the side close to the feed pipe 5. An annular filter frame 28 is also fixedly connected to the inner side of the protective sleeve 27. A cleaning brush 32 is arranged between the annular filter frame 28 and the dust-blocking tube 29. The cleaning brush 32 abuts against the annular filter frame 28 and is fixedly connected to the annular frame 30. The annular frame 30 is rotatably connected to the top shell wall of the protective sleeve 27, and a driven gear 31 meshing with the driving gear 24 is fixedly connected to the outer side, which is used to cooperate with the rotation of the driving gear 24 to realize the cleaning of the surface of the annular filter frame 28 by the cleaning brush 32.

[0035] In this embodiment, the dust blocking tube 29 is distributed in an annular shape and equidistantly on the inner side of the protective sleeve 27, is fixedly connected to the protective sleeve 27, and is arranged on the outer side of the top end of the pipe opening of the feed pipe 5. The annular filter frame 28 is arranged between the dust blocking tube 29 and the connecting duct 26. The annular frame 30 is rotatably connected to the top wall of the protective sleeve 27, and a sealing ring is fixedly connected to the frame wall at the connection. With the rotation of the fan 23, the dust blocking tube 29 absorbs the scattered dust, and the annular filter frame 28 filters the dust. The filtered air enters the inner side of the air control box 21 along the connecting duct 26, and actively The gear 24 can also cooperate with the driven gear 31 to drive the annular frame 30 to rotate, and the annular frame 31 drives the cleaning brush 32 to rotate around the surface of the annular filter frame 28 to complete the cleaning of the surface of the annular filter frame 28 and avoid the annular filter frame 28 from being blocked during use. By setting up a protective dust-blocking component 8, it can cooperate with the air-conducting control component 7 to realize the absorption and storage of scattered dust, and can realize automatic cleaning of the annular filter frame 28, which greatly improves the dust-proof ability of the equipment, ensures the cleanliness of the operating environment, and effectively avoids the problem of dust causing harm to the operator's body.

[0036] In one embodiment of the present invention, please refer to Figure 8 The anti-wall hanging component 9 includes: a scraper plate 33, a connecting rod 34 and a limit swivel 35. The scraper plate 33 is arranged around the outer side of the bottom end of the screening plate 10 and abuts against the inner wall of the material guide box 1. A connecting rod 34 is fixedly connected between the scraper plate 33 and the support column 11. A limit swivel 35 is fixedly connected to the outer side of the scraper plate 33. The limit swivel 35 is slidably connected to the annular groove arranged on the inner wall of the material guide box 1.

[0037] In this embodiment, when the support column 11 rotates, the connecting rod 34 drives the scraper plate 33 to rotate. The setting of the limit ring 35 allows the scraper plates 33 to still rotate synchronously after the connection between some scraper plates 33 and the support column 11 is disconnected. The scraper plates 33 can complete the cleaning of the inner wall of the material guide box 1 to avoid powder residue. By setting up the anti-wall hanging component 9, the screening crushing component 6 can be used to clean the inner wall of the material guide box 1, thereby ensuring the integrity of the material discharge.

[0038] In one embodiment of the present invention, please refer to Figure 2 and Fig. 9 The lifting and lowering feeding unit 2 includes: a supporting base 36, a supporting plate 37, a feeding pipe 38, a supporting frame 39, a receiving pipe 40, a control motor 41, a control rod 42, a screw push rod 43, a feeding trough 49, a control chamber 50 and an automatic lifting and lowering assembly 44. The supporting base 36 is arranged on the outer side of the bottom end of the material guide box 1, and the inner sides of both ends of the supporting base 36 are slidably connected with supporting plates 37, and a spring is fixedly connected between the supporting plate 37 and the supporting base 36, and the other end of the supporting plate 37 is fixedly connected to the material guide box 1, and a feeding pipe 38 is arranged on the inner side of the supporting base 36, and both sides of the feeding pipe 38 are fixedly connected with supporting frames 39, and the supporting frames The other end of 39 is fixedly connected to the support base 36, and a feed trough 49 and a control chamber 50 are arranged on the inner side of the feed pipe 38. The feed trough 49 is connected to a receiving tube 40 fixedly connected to the feed pipe 38, and the other end of the receiving tube 40 is slidably connected to the discharge pipe 4, and a control motor 41 fixedly connected to the feed pipe 38 is arranged on the inner side of the control chamber 50, and the output end of the control motor 41 is fixedly connected to the control rod 42, and the control rod 42 is fixedly connected to the screw push rod 43 arranged on the inner side of the feed trough 49, and is connected to the automatic lifting and lowering assembly 44, and the automatic lifting and lowering assembly 44 is connected to the material guide box, and is used to cooperate with the rotation of the control rod 42 to realize the reciprocating motion of the material guide box 1.

[0039] In this embodiment, a plurality of springs are fixedly connected between the support plate 37 and the support base 36. In addition, the fixed frame 19 is fixedly connected to the support base 36. The crushed powder enters the inner side of the feed trough 49 along the discharge pipe 4 and the receiving pipe 40. The control motor 41 drives the control rod 42 to rotate, and the control rod 42 drives the screw push rod 43 to rotate. The screw push rod 43 transports the powder entering the inner side of the feed trough 49. When the control rod 42 rotates, it can also drive the automatic lifting and lowering assembly 44. The automatic lifting and lowering assembly 44 can realize the up and down reciprocating motion of the material guide box 1. By setting a lifting and lowering feeding unit, not only can the powder be continuously and stably conveyed, but also the vibration of the material guide box 1 can be realized, which is beneficial to improving the crushing ability of the equipment, thereby ensuring the smoothness of the powder during transportation and ensuring the feeding efficiency.

[0040] In one embodiment of the present invention, please refer to Fig.10The automatic lifting and lowering assembly 44 includes: an elliptical rotating wheel 45, a movable plate 46, a positioning slider 47 and a push-pull rod 48. The elliptical rotating wheel 45 is fixedly connected to the outside of the control rod 42. The outer sides of both ends of the elliptical rotating wheel 45 are abutted with movable plates 46. The outer side of the movable plate 46 is fixedly connected with a positioning slider 47 slidably connected to the support frame 39. A push-pull rod 48 is arranged between the movable plate 46 and the material guide box 1. One end of the push-pull rod 48 is rotatably connected to the movable plate 46, and the other end is rotatably connected to the box wall of the material guide box 1, which is used to cooperate with the rotation of the elliptical rotating wheel 45 to realize the reciprocating motion of the material guide box 1.

[0041] In this embodiment, the control rod 42 drives the elliptical wheel 45 to rotate, and the elliptical wheel 45 pushes the movable plate 46. The movable plate 46 moves laterally under the restriction of the positioning slider 47, and cooperates with the spring set between the support plate 37 and the support base 36 to realize the reciprocating motion of the movable plate 46. The movable plate 46 cooperates with the push-pull rod 48 to drive the material guide box 1 to reciprocate up and down, thereby improving the crushing effect and efficiency of the equipment.

[0042] In one embodiment of the present invention, the inner wall of the bottom end of the material guide box 1 is sloped, and its longitudinal section is an isosceles trapezoidal structure, and the scraper plate 33 abuts against the slope.

[0043] The powder conveying equipment for melamine powder production, by providing a dustproof crushing unit 3 and cooperating with a lifting and lowering feeding unit 2, can not only perform multiple cycles of crushing of the powder, but also can timely absorb and store the dust scattered during crushing, thereby ensuring the cleanliness of the operating environment and stably conveying the powder. By providing a screening crushing component 6, the horizontal cutting crushing and synchronous longitudinal cutting crushing of the powder can be completed, and the powder can be screened, thereby completing the cyclic crushing of the powder, greatly improving the separation effect and efficiency, and ensuring the continuity and stability of feeding. By providing an air-conducting transmission control component 7, not only can the flow of air be realized, thereby enabling the protective dust-blocking component 8 to absorb dust, but also can drive the screening. The protective dust-blocking component 8 can complete the cutting and crushing of the powder, and can also realize the self-cleaning of the protective dust-blocking component 8, which greatly improves the dust-proof ability of the equipment and can improve the conveying capacity of the equipment. By setting the protective dust-blocking component 8, it can cooperate with the air-conducting transmission control component 7 to realize the absorption and storage of scattered dust, and can realize automatic cleaning of the annular filter frame 28, which greatly improves the dust-proof ability of the equipment, ensures the cleanliness of the operating environment, and effectively avoids the problem of dust causing harm to the operator's body. By setting a lifting and falling feeding unit, not only can the powder be continuously and stably conveyed, but also the vibration of the guide box 1 can be realized, which is beneficial to improving the crushing ability of the equipment, thereby ensuring the smoothness of the powder during transportation and ensuring the feeding efficiency.

[0044] The above are only preferred embodiments of the present invention. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the protection scope of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A powder conveying device for melamine powder production, characterized in that: include: A material guide box, wherein a feed pipe is fixedly connected to the top wall of the material guide box, and a discharge pipe is fixedly connected to the bottom wall of the material guide box; A dust-proof crushing unit, which is connected to the material guide box and is arranged around the outside of the feed pipe, and is used to cooperate with the material guide box to crush the powder and absorb and store the scattered dust; A lifting and lowering feeding unit is arranged outside the bottom end of the material guide box, connected to the material guide box, slidably connected to the feeding pipe, and connected to the dustproof crushing unit, and is used to realize the support of the material guide box and the conveyance of the powder, and synchronously drives the material guide box to perform reciprocating lifting and lowering operation, so as to realize the multi-directional crushing of the powder located inside the material guide box by the dustproof crushing unit; Wherein, the dust-proof crushing unit comprises: a screening crushing assembly, an air-guiding transmission and control assembly, a protective dust-blocking assembly and an anti-wall hanging assembly, the screening crushing assembly is arranged between the feed pipe and the discharge pipe, and is fixedly connected to the material guide box, the screening crushing assembly is connected to the air-guiding transmission and control assembly arranged on the outside of the material guide box, the air-guiding transmission and control assembly is connected to the material guide box, and is connected to the lifting and falling feeding unit, for driving the screening crushing assembly to realize transverse cutting of the powder, and cooperate with the lifting and falling feeding unit to realize longitudinal cutting of the powder by the screening crushing assembly, the air-guiding transmission and control assembly is also connected to the protective dust-blocking assembly arranged around the outside of the feed pipe, for cooperating with the air-guiding transmission and control assembly to realize absorption and storage of dust dispersed during powder crushing, an anti-wall hanging assembly abutting against the inner wall of the material guide box is arranged between the screening crushing assembly and the discharge pipe, the anti-wall hanging assembly is connected to the screening crushing assembly, for cooperating with the screening crushing assembly to realize cleaning of the inner wall of the material guide box; The screening type crushing assembly comprises: a screening plate, a support column, a crushing knife, a connecting column, a rotating rod, a cutting knife, a driving control tooth and a positioning guide block. The screening plate is fixedly connected and arranged on the inner side of the material guide box. The screening plate is rotatably connected with a support column. The bottom end of the support column is connected to the anti-hanging wall assembly. A connecting column is slidably connected on the top shell wall. One end of the connecting column is fixedly connected to the driving control tooth arranged on the inner side of the support column, and the other end is connected to the air-guided transmission control assembly for cooperating with the air-guided transmission control assembly to realize the longitudinal limit of the driving control tooth. The driving control tooth is fixedly connected to the support column. The positioning guide block on the inner side of the column is slidably connected to realize the synchronous rotation of the drive control teeth and the support column. The shell walls on both sides of the support column are rotatably connected with rotating rods, and a plurality of cutting knives are fixedly connected to the rotating rods. The rotating rods are also fixedly connected with a transmission gear meshing with the drive control teeth, which is used to cooperate with the lifting and lowering drive of the material guide box to rotate the rotating rod to realize the longitudinal cutting and crushing of the powder located on the inner side of the material guide box. A plurality of crushing knives fixedly connected to the support column are provided on the outer side of the rotating rod, which are used to cooperate with the rotation of the support column to realize the transverse cutting and crushing of the powder located on the inner side of the material guide box.

2. The powder conveying equipment for melamine powder production according to claim 1, characterized in that: The air-guided transmission control component includes: a fixed frame, a servo motor, an air control box, a driving rod, a fan, a driving gear, a connecting sleeve and a connecting duct. The servo motor is fixedly connected to the outside of the top of the material guide box, the output end of the servo motor is fixedly connected to the driving rod, the outside of the driving rod is provided with an air control box fixedly connected to the material guide box, the inside of the air control box is provided with a fan fixedly connected to the driving rod, and a connecting duct is fixedly connected to the box wall at the bottom end of the air control box. The other end of the connecting duct is connected to the protective dust-blocking component to cooperate with the rotation of the fan to realize the absorption of the scattered dust by the protective dust-blocking component. The outside of the driving rod is also sleeved with a connecting sleeve Tube, the connecting sleeve is rotatably connected to a fixed frame fixedly connected to the outside of the lifting and lowering feeding unit, a synchronous slide groove is arranged on the inner wall of the connecting sleeve, and a synchronous slider fixedly connected to the driving rod is slidingly connected inside the synchronous slide groove, which is used to realize the synchronous rotation of the driving rod and the connecting sleeve, the fixed frame is also rotatably connected to the connecting column, which is used to cooperate with the lifting and lowering feeding unit to realize the support of the connecting column, the connecting column and the connecting sleeve are connected by a belt transmission part, and a driving gear is also fixedly connected to the outside of the driving rod, which is connected to the protective dust-blocking assembly, which is used to cooperate with the rotation of the driving rod to realize the self-cleaning of the protective dust-blocking assembly.

3. The powder conveying equipment for melamine powder production according to claim 2, characterized in that: The protective dust-blocking assembly includes: a protective sleeve, an annular filter frame, a dust-blocking tube, an annular frame, a driven gear and a cleaning brush. The protective sleeve is arranged around the outside of the feed tube and is fixedly connected to the material guide box, and the outer wall is fixedly connected to the connecting conduit. A plurality of dust-blocking tubes are fixedly connected to the box wall on the side of the protective sleeve close to the feed tube, and an annular filter frame is also fixedly connected to the inner side of the protective sleeve. A cleaning brush is arranged between the annular filter frame and the dust-blocking tube, the cleaning brush abuts the annular filter frame and is fixedly connected to the annular frame, the annular frame is rotatably connected to the top shell wall of the protective sleeve, and a driven gear meshing with the driving gear is fixedly connected to the outside, which is used to cooperate with the rotation of the driving gear to realize the cleaning of the surface of the annular filter frame by the cleaning brush.

4. The powder conveying equipment for melamine powder production according to claim 3, characterized in that: The anti-wall hanging assembly includes: a scraper plate, a connecting rod and a limit swivel. The scraper plate is arranged around the outside of the bottom end of the screening plate and abuts against the inner wall of the material guide box. A connecting rod is fixedly connected between the scraper plate and the support column. A limit swivel is fixedly connected to the outside of the scraper plate. The limit swivel is slidably connected to the annular groove arranged on the inner wall of the material guide box.

5. The powder conveying equipment for melamine powder production according to claim 1, characterized in that: The lifting and lowering material feeding unit comprises: a supporting base, a supporting plate, a feeding pipe, a supporting frame, a receiving pipe, a control motor, a control rod, a spiral push rod, a feeding trough, a control chamber and an automatic lifting and lowering assembly. The supporting base is arranged on the outer side of the bottom end of the material guide box, and the inner sides of both ends of the supporting base are slidably connected with supporting plates, a spring is fixedly connected between the supporting plate and the supporting base, the other end of the supporting plate is fixedly connected to the material guide box, a feeding pipe is arranged on the inner side of the supporting base, support frames are fixedly connected on both sides of the feeding pipe, the other end of the supporting frame is fixedly connected to the supporting base, a feeding trough and a control chamber are arranged on the inner side of the feeding pipe, the feeding trough is connected to a receiving pipe fixedly connected to the feeding pipe, the other end of the receiving pipe is slidably connected to the feeding pipe, a control motor fixedly connected to the feeding pipe is arranged on the inner side of the control chamber, the output end of the control motor is fixedly connected to the control rod, the control rod is fixedly connected to the spiral push rod arranged on the inner side of the feeding trough, and is connected to the automatic lifting and lowering assembly, and the automatic lifting and lowering assembly is connected to the material guide box, and is used to cooperate with the rotation of the control rod to realize the reciprocating motion of the material guide box.

6. The powder conveying equipment for melamine powder production according to claim 5, characterized in that: The automatic lifting and lowering assembly includes: an elliptical rotating wheel, a movable plate, a positioning slider and a push-pull rod. The elliptical rotating wheel is fixedly connected to the outside of the control rod, and movable plates are abutted on the outside of both ends of the elliptical rotating wheel. A positioning slider slidably connected to the support frame is fixedly connected to the outside of the movable plate. A push-pull rod is arranged between the movable plate and the material guide box. One end of the push-pull rod is rotatably connected to the movable plate, and the other end is rotatably connected to the wall of the material guide box, which is used to cooperate with the rotation of the elliptical rotating wheel to realize the reciprocating motion of the material guide box.

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