CN113492511A

CN113492511A - Feeding system of plastic extruding machine

Info

Publication number: CN113492511A
Application number: CN202110652512.6A
Authority: CN
Inventors: 李改利
Original assignee: Guangzhou Changsheng Machinery Co ltd
Current assignee: Zhejiang Langren Arts & Crafts Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-10-12
Anticipated expiration: 2041-06-11
Also published as: CN113492511B

Abstract

The invention belongs to the field of polypropylene extrusion molding processes, and relates to a feeding system of an extruding machine. The feeding device is arranged on a feeding system of the plastic extruding machine and used for uniformly feeding polypropylene powder, and simultaneously, the polypropylene powder is scraped from the bonding part on the wall of the feeding pipe, so that the feeding pipe is prevented from being blocked, the waste of raw materials is reduced, and the polypropylene powder can not be remained on the rotating disc during working.

Description

Feeding system of plastic extruding machine

Technical Field

The invention belongs to the field of polypropylene extrusion molding processes, and particularly relates to a feeding system of an extruding machine.

Background

Polypropylene, abbreviated as PP, is a known semi-crystalline thermoplastic. Have higher impact resistance, mechanical properties is tough, multiple organic solvent and acid-base corrosion resistance, can be used for producing and making PP pipe, PP board etc, in the raw materials use of PP pipe production extruding machine, also can often use the polypropylene powder raw materials, but feed system generally with extruding machine hot melt system lug connection, the heat flow that the hot melt produced can enter into feed system, lead to the polypropylene powder to be melted, arch bridge effect when very easily causing the powder to feed, lead to blockking up in feed system, or melt the powder because of the heat flow, the powder glues on the feeding pipe wall, cause the waste of raw materials, also can cause the inhomogeneous scheduling problem of feeding simultaneously, influence the effect of follow-up PP pipe preparation.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a feeding system of a plastic extruding machine, which can uniformly scatter and flush polypropylene powder, scrape the powder adhered to the side wall, prevent the powder from staying in the pipe wall and ensure uniform feeding.

The purpose of the invention can be realized by the following technical scheme: the utility model provides an extruding machine charge-in system, includes the casing, the casing upside is equipped with powder feed arrangement, and powder feed arrangement is used for adding the material to PP pipe extrusion molding, the fixed axle that is equipped with of casing downside, the fixed axle downside rotates and is equipped with the runner, the annular is equipped with the round annular on the runner lateral wall, it is equipped with the rotation frid to slide in the annular, be equipped with the mobile device in the rotation frid.

Preferably, the powder feeding device comprises a right two shutter shafts which are fixed on the rear side wall of the shell and are arranged on the shell in a bilaterally symmetrical and rotating way, a shutter torsion spring is connected between the shutter shaft and the side wall of the shell, a shutter is fixedly arranged on the shutter shaft, a powder storage cavity is arranged at the upper side of the shutter, a large amount of polypropylene powder is filled in the powder storage cavity, straight grooves are fixedly arranged on the left side wall and the right side wall of the shell, a moving plate is arranged on the straight groove in a sliding manner, a straight groove spring is connected between the moving plate and the side wall of the straight groove, the moving plate is provided with a plurality of moving holes, the upper side wall of the moving plate is fixedly provided with a top plate connecting rod, the top plate is fixedly arranged at the upper end of the top plate connecting rod, a fixing plate is fixedly arranged on the side wall of the shell, the fixing plate is located below the lower side wall of the straight-groove spring, a plurality of fixing holes are formed in the fixing plate, and the fixing holes are not penetrated through the moving holes.

Preferably, the moving device comprises an electromagnetic sliding groove arranged on the rear side wall of the rotating groove plate, an electromagnetic sliding block is arranged in the electromagnetic sliding groove in a sliding mode, a motor is fixedly arranged on the electromagnetic sliding block, the motor is a double-output-end motor, a motor shaft is arranged on the motor, a transmission device is arranged at the rear end of the motor shaft, and the front end of the motor shaft extends forwards into the rotating pipe.

Preferably, transmission is including fixing lower transmission wheel on the motor shaft rear side wall, the fixed rack groove that is equipped with on the casing rear side wall, the rack inslot slides from top to bottom and is equipped with the rack, the rack with movable plate fixed connection, the rack under the lateral wall with be connected with the rack spring under the rack groove between the lateral wall, it is equipped with the transmission shaft to rotate on the casing rear side wall, go up the fixed sector gear that is equipped with in front side of transmission shaft, sector gear with rack toothing, go up the fixed transmission wheel that is equipped with in transmission shaft rear side, go up the transmission wheel with be connected with the conveyer belt between the lower transmission wheel.

Preferably, a pipe groove is fixedly formed in the rear side wall of the rotating pipe, a telescopic sealing plate is arranged in the pipe groove, the motor shaft is rotatably connected with the telescopic sealing plate, the motor shaft penetrates through the pipe groove and extends into the rotating pipe, a rotating disc is arranged at the front end of the motor shaft, and a powder processing device is arranged on the rotating disc.

Preferably, the powder processing apparatus includes that the annular is fixed to be set up six flexible grooves on the carousel, it is equipped with the slider to slide in every flexible inslot, the slider with be connected with the slider spring between the carousel centre of a circle, it is equipped with the diving board axle to rotate on the lateral wall before the slider, the epaxial fixed diving board that is equipped with of diving board, the diving board axle with be connected with the diving board torsional spring between the diving board lateral wall, the fixed a plurality of gas pockets that are equipped with on the diving board lateral wall.

Preferably, the outer side wall of the telescopic groove is fixedly provided with an air cavity, a piston is arranged in the air cavity in a sliding manner, a push rod is fixedly connected between the piston and the sliding block, and a hose is connected between each air cavity and the air hole on the next elastic plate which is sequenced in the clockwise direction.

The powder storage cavity is internally provided with a large amount of polypropylene powder, the lower side of the powder outlet cavity is communicated with a feeding system of a plastic extruding machine, when the powder storage cavity starts to work, a starting motor drives a motor shaft to rotate, a lower driving wheel rotates, an upper driving wheel is driven to rotate through a conveying belt, a sector gear is driven to rotate through an upper driving shaft, a meshing rack reciprocates up and down in a rack groove, a movable plate reciprocates up and down in a shell, when the movable plate moves upwards, a top plate connecting rod moves upwards, a stop door is upwards jacked up by a top plate and clamped on the top plate connecting rod, meanwhile, the movable plate is not abutted to a fixed plate, the powder in the powder storage cavity falls into the powder outlet cavity downwards through a movable hole and a fixed hole, when the movable plate moves downwards, the stop door resets under the action of a stop door torsion spring, and meanwhile, in the resetting process, the powder in the powder storage cavity falls down. The in-process of feeding can drive the powder loose through the vibration of removal board, and the volume of guaranteeing to feed at every turn simultaneously is even, improves the quality to follow-up preparation PP pipe, reduces the powder and blocks up the scheduling problem.

Simultaneously the motor shaft rotation drives the carousel rotatory, make the diving board rotate in a powder cavity, the powder falls into down on the diving board, be dialled away by the diving board, the downstream transportation, because the extruding machine needs hot melt work, steam can be moist to the feeding powder, cause the powder to form the arch bridge effect in a powder cavity, in order to avoid the powder to block up and be infected with on the commentaries on classics pipe inside wall, cause the waste, can scrape the powder that is infected with down when the diving board rotates to the commentaries on classics pipe lateral wall, the diving board is extruded by the commentaries on classics pipe lateral wall simultaneously, make the slider remove in flexible inslot, make the push rod remove, piston compressed air cavity, pass through the gas pocket with the air discharge, strike the powder on the diving board, avoid the powder to be infected with on the diving board, also avoid the powder because of contacting with the diving board under the reset action of diving board torsional spring, too powerful is got rid of again to the commentaries on classics pipe lateral wall.

When the motor starts, the electromagnetic sliding block can slide up and down in the electromagnetic sliding groove in a reciprocating mode, so that the rotary table can slide up and down in the powder discharging cavity, the inner side wall of the rotary pipe can be cleaned up and down, meanwhile, the motor shaft can move up and down to drive the rotary pipe to rotate in a reciprocating mode in the fixed shaft, the inner side wall of the rotary pipe can not be scraped by the elastic plate, the cleaning surface is wider, and the cleaning effect is better.

Compared with the prior art, the feeding system of the extruding machine has the following advantages:

1. the in-process of feeding can drive the powder loose through the vibration of removal board, and the volume of guaranteeing to feed at every turn simultaneously is even, improves the quality to follow-up preparation PP pipe, reduces the powder and blocks up the scheduling problem.

2. The air is discharged through the air hole, the powder on the elastic plate is impacted, the powder is prevented from being stained on the elastic plate, and the powder is prevented from being thrown to the side wall of the rotating pipe again due to the fact that the powder is in contact with the elastic plate under the reset action of the torsional spring of the elastic plate, and the powder is prevented from being thrown to the side wall of the rotating pipe again due to too strong force.

3. The inner side wall of a part of the rotating pipe can not be scraped by the elastic plate, the cleaning surface is wider, and the cleaning effect is better.

Drawings

FIG. 1 is a schematic diagram of the extruder feed system.

Fig. 2 is a sectional view taken along a line a-a in fig. 1.

Fig. 3 is an enlarged view of the structure at B in fig. 1.

Fig. 4 is a sectional view taken along line C-C in fig. 2.

Fig. 5 is a sectional view taken along line D-D in fig. 2.

In the figure, 10, the housing; 11. a powder storage cavity; 12. a shutter shaft; 13. a shutter torsion spring; 14. a straight groove; 15. a straight slot spring; 16. moving the plate; 17. a fixing plate; 18. a fixed shaft; 19. pipe rotation; 20. a spring plate; 21. air holes; 22. a powder outlet cavity; 23. a turntable; 24. a top plate; 25. a shutter; 26. a top plate connecting rod; 27. moving the hole; 28. a fixing hole; 29. a driving wheel is arranged; 30. a conveyor belt; 31. an upper transmission shaft; 32. a sector gear; 33. a rack; 34. a rack spring; 35. a rack slot; 36. a lower driving wheel; 37. an electromagnetic slider; 38. a motor; 39. a motor shaft; 40. rotating the slotted plate; 41. a retractable sealing plate; 42. a ring groove; 43. a pipe groove; 44. (ii) a 45. A spring plate shaft; 46. a spring plate torsion spring; 47. a slider spring; 48. a slider; 49. a telescopic groove; 50. an air cavity; 51. A piston; 52. a push rod; 53. an electromagnetic chute.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, a feeding system of an extruding machine comprises a casing 10, wherein a powder feeding device is arranged on the upper side of the casing 10 and used for feeding materials to a PP pipe in an extrusion molding manner, a fixing shaft 18 is fixedly arranged on the lower side of the casing 10, a rotating pipe 19 is rotatably arranged on the lower side of the fixing shaft 18, a ring-shaped annular groove 42 is annularly arranged on the outer side wall of the rotating pipe 19, a rotating groove plate 40 is arranged in the annular groove 42 in a sliding manner, and a moving device is arranged in the rotating groove plate 40.

As shown in fig. 1 and 2, the powder feeding device includes two right shutter shafts 12 fixed on the rear side wall of the housing 10 in a bilaterally symmetrical manner, a shutter torsion spring 13 is connected between the shutter shafts 12 and the side wall of the housing 10, a shutter 25 is fixedly arranged on the shutter shafts 12, a powder storage chamber 11 is arranged on the upper side of the shutter 25, a large amount of polypropylene powder is filled in the powder storage chamber 11, straight grooves 14 are fixedly arranged on the left and right side walls of the housing 10, a moving plate 16 is slidably arranged on the straight grooves 14, a straight groove spring 15 is connected between the moving plate 16 and the side wall of the straight groove 14, a plurality of moving holes 27 are arranged on the moving plate 16, a top plate connecting rod 26 is fixedly arranged on the upper side wall of the moving plate 16, a top plate 24 is fixedly arranged at the upper end of the top plate connecting rod 26, a fixing plate 17 is fixedly arranged on the side wall of the housing 10, the fixing plate 17 is located below the lower side wall of the straight groove spring 15, a plurality of fixing holes 28 are arranged on the fixing plate 17, and the fixing holes 28 do not penetrate through the moving holes 27.

As shown in fig. 2 and 4, the moving device includes an electromagnetic chute 53 disposed on the rear side wall of the rotating chute plate 40, an electromagnetic slider 37 is slidably disposed in the electromagnetic chute 53, a motor 38 is fixedly disposed on the electromagnetic slider 37, the motor 38 is a dual-output motor, a motor shaft 39 is disposed on the motor 38, a transmission device is disposed at the rear end of the motor shaft 39, and the front end of the motor shaft 39 extends forward into the rotating pipe 19.

As shown in fig. 2, the transmission device includes a lower transmission wheel 36 fixed on a rear side wall of a motor shaft 39, a rack groove 35 is fixedly arranged on the rear side wall of the housing 10, a rack 33 is slidably arranged in the rack groove 35 up and down, the rack 33 is fixedly connected with the moving plate 16, a rack spring 34 is connected between the lower side wall of the rack 33 and the lower side wall of the rack groove 35, an upper transmission shaft 31 is rotatably arranged on the rear side wall of the housing 10, a sector gear 32 is fixedly arranged on a front side of the upper transmission shaft 31, the sector gear 32 is engaged with the rack 33, an upper transmission wheel 29 is fixedly arranged on a rear side of the upper transmission shaft 31, and a conveyor belt 30 is connected between the upper transmission wheel 29 and the lower transmission wheel 36.

As shown in fig. 2 and 5, a duct 43 is fixedly disposed on the rear side wall of the rotating duct 19, a retractable sealing plate 41 is disposed in the duct 43, a motor shaft 39 is rotatably connected to the retractable sealing plate 41, the motor shaft 39 passes through the duct 43 and extends into the rotating duct 19, a rotating disc 23 is disposed at the front end of the motor shaft 39, and a powder processing device is disposed on the rotating disc 23.

As shown in fig. 1, 2 and 3, the powder processing apparatus includes six telescopic slots 49 fixedly disposed on the turntable 23 in an annular shape, a slider 48 is slidably disposed in each telescopic slot 49, a slider spring 47 is connected between the slider 48 and the center of the turntable 23, an elastic plate shaft 45 is rotatably disposed on the front side wall of the slider 48, an elastic plate 20 is fixedly disposed on the elastic plate shaft 45, an elastic plate torsion spring 46 is connected between the elastic plate shaft 45 and the side wall of the elastic plate 20, and a plurality of air holes 21 are fixedly disposed on the side wall of the elastic plate 20.

As shown in fig. 1, 2 and 3, an air chamber 50 is fixedly arranged on the outer side wall of the telescopic slot 49, a piston 51 is slidably arranged in the air chamber 50, a push rod 52 is fixedly connected between the piston 51 and the slide block 48, and a hose is connected between each air chamber 50 and the air hole 21 on the next springboard 20 which is sequenced in the clockwise direction.

A large amount of polypropylene powder is filled in the powder storage cavity 11, the lower side of the powder outlet cavity 22 is communicated with a feeding system of a plastic extruding machine, when the powder extruding machine starts to work, a starting motor 38 drives a motor shaft 39 to rotate, a lower driving wheel 36 rotates, an upper driving wheel 29 rotates through a conveying belt 30, a sector gear 32 rotates through an upper driving shaft 31, a meshing rack 33 reciprocates up and down in a rack groove 35, a moving plate 16 reciprocates up and down in a shell 10, when the moving plate 16 moves upwards, a top plate connecting rod 26 moves upwards, a top plate 24 jacks up a baffle door 25, the baffle door 25 is clamped on the top plate connecting rod 26, the moving plate 16 is not abutted to a fixed plate 17, the powder in the powder storage cavity 11 falls into the powder outlet cavity 22 downwards through a moving hole 27 and a fixed hole 28, when the moving plate 16 moves downwards, the baffle door 25 resets under the action of a baffle door torsion spring 13, and simultaneously in the resetting process, the powder in the powder storage chamber 11 falls. The feeding process can drive the powder to be loose through the vibration of the moving plate 16, the feeding amount is uniform every time, the quality of the PP pipe manufactured subsequently is improved, and the powder blockage is reduced.

Meanwhile, the motor shaft 39 rotates to drive the turntable 23 to rotate, so that the springboard 20 rotates in the powder outlet cavity 22, the powder falls downwards onto the springboard 20, is scattered by the springboard 20 and is transported downwards, because the plastic extruding machine needs hot melting work, hot air can moisten the feeding powder, so that the powder forms an arch bridge effect in the powder outlet cavity 22, in order to avoid powder blockage and contamination on the inner side wall of the rotating pipe 19 and waste, the contaminated powder can be scraped off when the elastic plate 20 rotates to the side wall of the rotating pipe 19, at the same time, the elastic plate 20 is pressed by the side wall of the rotating pipe 19, so that the slide block 48 moves in the telescopic slot 49, so that the push rod 52 moves, the piston 51 compresses the air chamber 50, the air is discharged through the air hole 21, the powder on the elastic plate 20 is impacted, the powder is prevented from being polluted on the elastic plate 20, and the powder is prevented from being thrown to the side wall of the rotating pipe 19 again due to too strong force when the powder is contacted with the elastic plate 20 under the reset action of the elastic plate torsion spring 46.

When the motor 38 is started, the electromagnetic sliding block 37 can slide up and down in the electromagnetic sliding groove 53 in a reciprocating manner, so that the rotary disc 23 can slide up and down in the powder outlet cavity 22 to clean up the inner side wall of the rotary tube 19 up and down, and meanwhile, the motor shaft 39 moves up and down to drive the rotary tube 19 to rotate in the fixed shaft 18 in a reciprocating manner, so that the inner side wall of part of the rotary tube 19 cannot be scraped by the elastic plate 20, the cleaning surface is wider, and the cleaning effect is better.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides an extruding machine charge-in system, includes casing (10), its characterized in that, including casing (10), casing (10) upside is equipped with powder feed arrangement, and powder feed arrangement is used for adding the material to PP pipe extrusion molding, casing (10) downside is fixed and is equipped with fixed axle (18), fixed axle (18) downside is rotated and is equipped with runner (19), the annular is equipped with round annular (42) on runner (19) lateral wall, it is equipped with rotation frid (40) to be equipped with the slip in annular (42), be equipped with the mobile device in rotation frid (40).

2. An extruder feed system as claimed in claim 1, wherein: the powder feeding device comprises two right baffle shafts (12) which are fixed on the upper rear side wall of the shell (10) in a bilateral symmetry manner and rotate, a baffle torsional spring (13) is connected between the baffle shafts (12) and the side wall of the shell (10), a baffle door (25) is fixedly arranged on each baffle shaft (12), a powder storage cavity (11) is arranged on the upper side of each baffle door (25), a large amount of polypropylene powder is filled in each powder storage cavity (11), straight grooves (14) are fixedly arranged on the left side wall and the right side wall of the shell (10), a moving plate (16) is arranged on each straight groove (14) in a sliding manner, a straight groove spring (15) is connected between each moving plate (16) and the side wall of each straight groove (14), a plurality of moving holes (27) are formed in each moving plate (16), a top plate connecting rod (26) is fixedly arranged on the upper side wall of each moving plate (16), and a top plate (24) is fixedly arranged on the top plate connecting rod (26), fixed plate (17) that is equipped with on casing (10) lateral wall, fixed plate (17) are located lateral wall below under straight flute spring (15), be equipped with a plurality of fixed orificess (28) on fixed plate (17), fixed orificess (28) with removal hole (27) do not run through.

3. An extruder feed system as set forth in claim 2, wherein: the moving device comprises an electromagnetic sliding groove (53) formed in the rear side wall of the rotating groove plate (40), an electromagnetic sliding block (37) is arranged in the electromagnetic sliding groove (53) in a sliding mode, a motor (38) is fixedly arranged on the electromagnetic sliding block (37), the motor (38) is a double-output end motor, a motor shaft (39) is arranged on the motor (38), a transmission device is arranged at the rear end of the motor shaft (39), and the front end of the motor shaft (39) extends into the rotating pipe (19) forwards.

4. An extruder feed system according to claim 3, wherein: the transmission device comprises a lower transmission wheel (36) fixed on the rear side wall of a motor shaft (39), a rack groove (35) is fixedly formed in the rear side wall of a shell (10), a rack (33) is arranged in the rack groove (35) in a sliding mode up and down, the rack (33) is fixedly connected with a movable plate (16), a rack spring (34) is connected between the lower side walls of the rack groove (35) and the lower side wall of the rack groove (33), an upper transmission shaft (31) is arranged on the rear side wall of the shell (10) in a rotating mode, a sector gear (32) is fixedly arranged on the front side of the upper transmission shaft (31), the sector gear (32) is meshed with the rack (33), an upper transmission wheel (29) is fixedly arranged on the rear side of the upper transmission shaft (31), and a transmission belt (30) is connected between the upper transmission wheel (29) and the lower transmission wheel (36).

5. An extruder feed system according to claim 4, wherein: a pipe groove (43) is fixedly arranged on the rear side wall of the rotating pipe (19), a telescopic sealing plate (41) is arranged in the pipe groove (43), the motor shaft (39) is rotatably connected with the telescopic sealing plate (41), the motor shaft (39) penetrates through the pipe groove (43) and extends into the rotating pipe (19), a rotating disc (23) is arranged at the front end of the motor shaft (39), and a powder processing device is arranged on the rotating disc (23).

6. An extruder feed system according to claim 5, wherein: powder processing apparatus includes that the annular is fixed to be set up six flexible groove (49) on carousel (23), it is equipped with slider (48) to slide in every flexible groove (49), slider (48) with be connected with slider spring (47) between the carousel (23) the centre of a circle, it is equipped with diving board axle (45) to rotate on the lateral wall before slider (48), fixed diving board (20) that are equipped with on diving board axle (45), diving board axle (45) with be connected with diving board torsional spring (46) between diving board (20) the lateral wall, fixed a plurality of gas pockets (21) that are equipped with on diving board (20) the lateral wall.

7. An extruder feed system according to claim 6, wherein: an air cavity (50) is fixedly arranged on the outer side wall of the telescopic groove (49), a piston (51) is arranged in the air cavity (50) in a sliding mode, a push rod (52) is fixedly connected between the piston (51) and the sliding block (48), and a hose is connected between each air cavity (50) and the air hole (21) on the next elastic plate (20) sequenced in the clockwise direction.