CN113878836A

CN113878836A - PVC-U pipe extrusion molding machine head with changeable pipe diameter

Info

Publication number: CN113878836A
Application number: CN202111110406.1A
Authority: CN
Inventors: 于玉真; 张王康; 荆孟杰
Original assignee: Yancheng Institute of Technology
Current assignee: Yancheng Institute of Technology
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-01-04
Anticipated expiration: 2041-09-23
Also published as: CN113878836B

Abstract

The invention relates to the field of pipe forming, in particular to a PVC-U pipe extrusion forming machine head with a changeable pipe diameter, which comprises a transmission mechanism, wherein a feeding mechanism is connected onto the transmission mechanism, a driving mechanism is connected to one side of the feeding mechanism, the driving mechanism is connected with a supporting mechanism, a casing is fixed at one end of the transmission mechanism, a material limiting mechanism is connected with the feeding mechanism, and the feeding mechanism is in transmission connection with the transmission mechanism. The material can be pushed into the base to be heated and melted through the arranged transmission mechanism, the material is pushed out of the extrusion mechanism through the transmission mechanism, and the pipe with different diameters and sizes can be produced by matching various models through the arranged extrusion mechanism; the extrusion mechanism is supported and stabilized by the arranged support mechanism; the feeding of the feeding mechanism can be limited by the arranged material limiting mechanism; the driving mechanism can control the material limiting mechanism and the supporting mechanism to support the extruding mechanism.

Description

PVC-U pipe extrusion molding machine head with changeable pipe diameter

Technical Field

The invention relates to the field of pipe forming, in particular to a PVC-U pipe extrusion forming machine head with a changeable pipe diameter.

Background

The PVC-U pipeline is produced by using sanitary polyvinyl chloride resin as main material, adding proper amount of stabilizer, lubricant, stuffing, coloring agent, etc. and through extrusion in plastic extruder, injection in injection molding machine, cooling, solidification, setting, inspection, packing and other steps. Excellent physical and chemical properties, chemical corrosion resistance, high impact strength, small fluid resistance, aging resistance and long service life, and is an ideal material for building water supply and drainage.

However, when the existing PVC-U pipe is produced, the raw materials need to be extruded and formed by an extruder, and then cooled, cured and shaped; in the production process of the existing extruding machine, one extruding machine can only extrude one type of pipe, and after the pipe is discharged, the pipe is cut to obtain pipes with different lengths and sizes; because the extruder head only has one discharge port, the discharge types are the same, and the extruder heads with different types need to be replaced when pipes with different sizes are obtained; when the extruder head is shut down, more tailings can be reserved in the extruder head, the tailings cannot be discharged out of the extruder head in time, the tailings must be pushed out through subsequent materials when the extruder head is started next time, and the pushed tailings cannot be utilized; when shutting down, the inside production of aircraft nose can not just be put in to the inside material of feeding case, will produce some deviations with the production plan like this, can waste the material, consequently need realize through the feeder hopper before needs shut down, the feeding case does not supply the material, and then reaches the production demand.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a PVC-U pipe extrusion molding machine head with a changeable pipe diameter.

The technical scheme adopted by the invention for solving the technical problems is as follows: a PVC-U pipe extrusion molding machine head with a changeable pipe diameter comprises a transmission mechanism, wherein a feeding mechanism is connected onto the transmission mechanism, one side of the feeding mechanism is connected with a driving mechanism, the driving mechanism is connected with a supporting mechanism, the driving mechanism is positioned on one side of a sleeve shell, the sleeve shell is fixed at one end of the transmission mechanism, a material limiting mechanism is slidably connected above the sleeve shell, the material limiting mechanism is connected with the feeding mechanism, and the feeding mechanism is in transmission connection with the transmission mechanism; the extrusion mechanism is connected to the transmission mechanism and located inside the casing, and the extrusion mechanism is connected with the supporting mechanism.

Preferably, the transmission mechanism comprises a support, one end of the support is fixed with a base, and a heating ring for heating the raw materials is arranged in the base; a motor is fixed on the side wall of the support, a spiral feeding rod is connected to the output end of the motor, and the spiral feeding rod is matched with a feeding hole in the support; a first chain wheel is arranged on the surface of the spiral feeding rod, a chain matched with the first chain wheel is sleeved on the first chain wheel, a second chain wheel is sleeved on the chain, the second chain wheel is matched with the first chain wheel, and the diameter size of the second chain wheel is larger than that of the first chain wheel; and the second chain wheel is fixed on a stirring shaft of the feeding mechanism.

Preferably, the transmission mechanism further comprises a shell positioned above the support, a protective cover is installed at the top of the shell, and the protective cover is fixed on the side wall of the feeding box of the feeding mechanism.

Preferably, the feeding mechanism comprises a feeding hopper fixed above a support of the transmission mechanism, a feeding box is fixed above the feeding hopper, a stirring shaft rotating with the feeding box is arranged inside the feeding box, a plurality of stirring rods positioned inside the feeding box are arranged on the surface of the stirring shaft, two flywheels are arranged at one end of the stirring shaft, a first connecting rod is movably connected between the two flywheels, a sieve plate is movably connected to the bottom of the first connecting rod, and a plurality of sieve holes uniformly distributed are arranged on the sieve plate; a rotating rod is fixed at one end of the stirring shaft, which is far away from the flywheel, and a first support fixed on the feeding box is sleeved on the stirring shaft; the rotating rod is rotatably connected with a second connecting rod, and the bottom end of the second connecting rod is movably connected to the end part of the sieve plate; the sieve plate is in sliding connection with a notch arranged on the inner wall of the feeding box; and a material blocking assembly on the material limiting mechanism is arranged below the sieve plate.

Preferably, feed mechanism is still including seting up the feed chute on the feeder hopper lateral wall, install the commentaries on classics board that is located the feed chute inside on the feeder hopper, just change the board with the feeder hopper rotates and connects.

Preferably, limit material mechanism is including being located the inside fender material subassembly of feeding incasement, fixedly connected with movable plate on the lateral wall of keeping off material subassembly, be provided with the slide on the lateral wall of movable plate, the inside of slide is provided with the spout, the guide way has been seted up to the below of slide, the inside of guide way is provided with rather than matched with guide block, the bottom of guide block is fixed with the stabilizer plate, the stabilizer plate is fixed at the top of cover shell.

Preferably, keep off the material subassembly including fixing the fixed pin on the feeding case lateral wall, the cover is equipped with rather than rotating the commentaries on classics cover of being connected on the fixed pin, the tip at the striker plate is fixed to the lateral wall of commentaries on classics cover, the striker plate is fixed mutually with the moving plate, the inside of commentaries on classics cover is fixed with the one end of torsional spring, the inside cover of torsional spring is equipped with the fixed pin, the other end of fixed torsional spring on the lateral wall of fixed pin.

Preferably, the material limiting mechanism further comprises a screw fixed inside the sliding plate, a second support is rotatably connected to the outside of the screw through threads, the second support is fixed on the first helical gear, the second support is fixed on the inner wall of the strut, and the screw and the second support are matched with the sliding groove; and a third bevel gear on the driving mechanism is meshed below the first bevel gear.

Preferably, the driving mechanism comprises a third bevel gear matched with the material limiting mechanism, a transmission rod is fixed on the side face of the third bevel gear, a third bevel gear meshed with the second bevel gear is fixed at the end part, far away from the first bevel gear, of the transmission rod, and the transmission rod is connected to the inner wall of a support column of the material limiting mechanism through a bearing; the end part of the second bevel gear is fixed at the end part of the rotating stick, two driving wheels are fixed on the surface of the rotating stick, a driven wheel matched with the driving wheel is sleeved on the driving wheel, a plurality of insertion holes are formed in the driven wheel, insertion pins are installed in the insertion holes, tightening sleeves abutted against the insertion pins are arranged at the end parts of the insertion pins, and the tightening sleeves are connected with the driving wheels through threads; a rotating wheel is fixed at one end of the rotating rod, a hexagonal hole is formed in a hub protruding outwards from the rotating wheel, and a crank is mounted on the hub; the rotary rod is rotatably connected with the driving box, the driving box is fixed on the side wall of the casing, and the end part of a steel wire rope on the supporting mechanism is fixed on the driven wheel.

Preferably, the supporting mechanism includes with from driving wheel fixed wire rope mutually, wire rope keeps away from the end fixing of driving wheel and sheathes in supporting, the middle part of supporting the cover is fixed with the guide bar, the cover is equipped with the spring on the guide bar, the spring is located the inside of bracing piece, the bracing piece is the telescopic link, the guide bar slides in the inside of bracing piece, wire rope is located the both sides of bracing piece, wire rope and the pulley slidable mounting who installs on the cover shell lateral wall, the bottom butt of supporting the cover is on the outer wall of the outer sleeve on extrusion mechanism.

Preferably, the extruding mechanism comprises an outer sleeve which is abutted against the supporting mechanism, an inner sleeve which is matched with the outer sleeve is mounted inside the outer sleeve, the outer sleeve is connected to the end portion of the flow guide cover through threads, a flow guide ball is arranged inside the flow guide cover, one end of the flow guide ball is connected with a fixing block, the inner sleeve is connected to the fixing block through threads, a transverse support rod is fixed to one end of the flow guide ball, a fixing rod which is of a cross-shaped structure is fixed to the end portion of the transverse support rod, the flow guide cover and the fixing rod are fixed to the support through nuts, and the flow guide cover is matched with a feeding hole in the transmission mechanism.

The invention has the beneficial effects that:

(1) the material can be pushed into the base to be heated and melted through the arranged transmission mechanism, the material is pushed out of the extrusion mechanism through the transmission mechanism, and the pipe with different diameters and sizes can be produced by matching various models through the arranged extrusion mechanism; the extrusion mechanism is supported by the supporting mechanism to be stable, so that the extrusion mechanism is not inclined or cracked when extruding the pipe, and the production quality of the pipe is further ensured; the feeding mechanism can control the feeding of materials in the base, so that the effect of completely removing the materials in the feeding port is achieved, and the feeding of the feeding mechanism can be limited by the arranged material limiting mechanism; the driving mechanism can control the material limiting mechanism and the supporting mechanism to support the extruding mechanism. Heating to 90-120 ℃ through the arranged heating ring to enable the material to form a molten state, and then pushing the material by the spiral feeding rod until the material is extruded and shaped from the extrusion mechanism; the motor that rotates through setting up drives the rotation of spiral feed rod, and simultaneously, the motor rotates and drives first sprocket and rotate, and when first sprocket rotated, first sprocket passed through the chain and drives the second sprocket and rotate to realize that the second sprocket drives the flywheel and rotate, thereby the flywheel rotates in step, because the diameter size of second sprocket is greater than the diameter size of first sprocket, after first sprocket rotates many rings, the second sprocket could rotate the round.

(2) Rotate the first linkage motion of drive through the flywheel that sets up, first link can stimulate the one end of sieve and do and reciprocate, meanwhile, in the time of first linkage motion, the (mixing) shaft rotates, the (mixing) shaft drives the puddler and rotates, the bull stick that is connected with the (mixing) shaft drives the rotation of second link in step, and then realize that the other end of second link pulling sieve does and reciprocates, and synchronous reciprocating is done at the both ends of sieve, thereby the function of screening is realized to the sieve, and the sieve can directly enter into the inside of feeder hopper from the sieve mesh and fall into the inside of frame at the in-process material of screening. When the tails was discharged, can directly manually open the commentaries on classics board and drop into the inside of frame with the tails from the feed chute, carry out recycle, and the tails can be at first melted in the inside of frame and carry out, and then the first exhaust binder of extrusion mechanism's tip is the tails that drops into the feeder hopper last time to reach the purpose of practicing thrift the tails. The material blocking plate on the material blocking assembly is driven to move through the movement of the arranged moving plate, so that the material blocking of the material blocking plate is realized, and therefore, when the spiral feeding rod rotates and tailings are output, no material falls into the base; the movable plate can be driven to move through the arranged sliding plate, the guide groove at the bottom of the movable plate can slide on the guide block, so that the movable plate can slide in a certain range, and the maximum sliding distance of the sliding plate is slightly larger than the length of the material blocking plate. Through the matching of the fixed pin, the rotating sleeve and the torsion spring, when the striker plate is extruded by materials, the striker plate rotates to realize buffering, so that the materials enter the inside of the base from a gap between the striker plate and the feeding box; when a worker fails or forgets to turn off the motor, the motor can continuously drive the sieve plate to sieve materials, so that more and more materials on the material baffle plate can be obtained, and the situation that the material extrudes the material baffle plate to be fixed can occur until the materials between the material baffle plate and the sieve plate are stacked to the distance of the maximum size of the downward movement of the sieve plate, so that the feeding mechanism is damaged, the damage of the feeding mechanism is avoided through the matching of the arranged fixed pin, the rotating sleeve and the torsion spring, and the service life is prolonged; the material blocking assembly has the functions of blocking material blanking and protecting the feeding mechanism, and the elasticity of the torsional spring is greater than the gravity of the material on the material blocking plate. The first helical gear is driven by the third helical gear on the driving mechanism, when the first helical gear rotates, the screw rod inside the first helical gear can move through threaded connection, when the screw rod moves, the screw rod can drive the sliding plate to move synchronously, and then the sliding plate can drive the moving plate to move synchronously, so that the moving plate can drive the material blocking assembly to move synchronously.

(3) Can cooperate the electric drill who takes hexagon head bolt through the hexagonal hole that sets up to rotate, and then the drive runner rotates, also can rotate the drive runner through the crank and rotate, when the runner rotates, the runner drives and changes the rod rotation, and then realize changeing the rod and can drive the synchronous rotation of action wheel, when needs loosen supporting mechanism, insert the inside of jack with the bolt, make can rotate along with the action wheel is synchronous from the driving wheel, because the bolt is the cuboid structure, can be fixed action wheel and follow driving wheel after the bolt inserts the jack, and can not take place to rock relatively between action wheel and the follow driving wheel, after the bolt is inserted, need will tighten the cover and tighten, tighten through threaded connection between cover and the action wheel. The steel wire rope is in a Y-shaped structure, the steel wire rope is pulled by the driven wheel to move a small distance, and the steel wire rope can be conveniently pulled to rotate through the arranged pulley; and then realize that wire rope pulling supports the cover and removes to support the cover and no longer support extruding means, when wire rope pulling supported the cover and removed, the spring compression, at this moment, the bracing piece shrink, the guide bar slides in the inside of bracing piece simultaneously, and at this moment, supporting means no longer supports extruding means, conveniently dismantles and changes the outer sleeve and the inner skleeve of different models extrusion means, and then realizes the function that a aircraft nose can produce multiple model PVC-U tubular product.

(4) When the supporting sleeve on the supporting mechanism leaves the outer wall of the outer sleeve, the outer sleeve is taken down from the air guide sleeve by using a tool, and the inner sleeve is taken down from the fixed block at the same time; the outer sleeve and the inner sleeve with proper sizes are selected according to actual production requirements, so that the distance between the inner wall of the outer sleeve and the outer wall of the inner sleeve is the wall thickness of the actually produced pipeline, the diameter of the outer wall of the inner sleeve is the inner diameter of the produced pipeline, and the inner diameter of the outer sleeve is the outer diameter of the actually produced pipeline. After the size is selected, the air guide sleeve is installed on the base, the inner sleeve and the outer sleeve are sequentially installed, after installation is completed, the fixed driving mechanism is loosened, the material blocking assembly is taken out of the inner portion of the feeding box, the driving mechanism is rotated, the driving mechanism drives the steel wire rope to reset, at the moment, the spring resets, the supporting sleeve can be abutted to the outer wall of the outer sleeve, installation is completed, the motor is opened at the moment, and the extrusion molding machine head can normally produce pipes.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the overall structure provided by the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;

FIG. 5 is an enlarged view of the structure at B in FIG. 3 according to the present invention;

FIG. 6 is an enlarged view of the structure of FIG. 3 at C according to the present invention;

fig. 7 is a schematic structural view of a material blocking assembly of the present invention;

FIG. 8 is a schematic view of a rod connection according to the present invention;

FIG. 9 is a schematic view of the drive mechanism connection of the present invention;

FIG. 10 is a schematic view of the connection of a second bearing and a first bevel gear of the present invention;

FIG. 11 is a perspective view of the latch of the present invention;

in the figure: 1. a transmission mechanism; 11. a motor; 12. a support; 13. a housing; 14. a protective cover; 15. a machine base; 16. a chain; 17. a screw feed rod; 18. a feed inlet; 19. a first sprocket; 110. a second sprocket; 2. a feeding mechanism; 21. a feeding box; 22. a stirring shaft; 23. a stirring rod; 24. screening holes; 25. a sieve plate; 26. a first link; 27. a flywheel; 28. a first support; 29. a rotating rod; 210. a second link; 211. a feed hopper; 212. a feed chute; 213. rotating the plate; 3. a material limiting mechanism; 31. moving the plate; 32. a stabilizing plate; 33. a slide plate; 34. a pillar; 35. a guide block; 36. a guide groove; 37. the material blocking component; 371. a fixing pin; 372. rotating the sleeve; 373. a torsion spring; 374. a striker plate; 38. a chute; 39. a screw; 310. a second support; 311. a first helical gear; 4. a drive mechanism; 41. a drive box; 42. a rotating wheel; 43. a crank; 44. a hexagonal hole; 45. a driving wheel; 46. rotating the stick; 47. a jack; 48. a driven wheel; 49. a bolt; 410. screwing the sleeve; 411. a second helical gear; 412. a transmission rod; 413. a third bevel gear; 5. a support mechanism; 51. a pulley; 52. a wire rope; 53. a support bar; 54. a support sleeve; 55. a guide bar; 56. a spring; 6. a housing; 7. heating a ring; 8. an extrusion mechanism; 81. fixing the rod; 82. a nut; 83. a transverse stay bar; 84. a flow guide ball; 85. a fixed block; 86. a pod; 87. an inner sleeve; 88. an outer sleeve.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-11, the PVC-U pipe extrusion molding machine head with changeable pipe diameter according to the present invention comprises a transmission mechanism 1, wherein the transmission mechanism 1 is connected with a feeding mechanism 2, one side of the feeding mechanism 2 is connected with a driving mechanism 4, the driving mechanism 4 is connected with a supporting mechanism 5, the driving mechanism 4 is located at one side of a casing 6, the casing 6 is fixed at one end of the transmission mechanism 1, a material limiting mechanism 3 is slidably connected above the casing 6, the material limiting mechanism 3 is connected with the feeding mechanism 2, and the feeding mechanism 2 is in transmission connection with the transmission mechanism 1; the extrusion mechanism 8 is connected to the transmission mechanism 1, the extrusion mechanism 8 is located inside the casing 6, and the extrusion mechanism 8 is connected with the supporting mechanism 5. The material can be pushed into the base 15 through the arranged transmission mechanism 1 to be heated and melted, the material is pushed out from the extrusion mechanism 8 through the transmission mechanism 1, and the arranged extrusion mechanism 8 can be matched with various models to produce pipes with different diameters and sizes; the supporting mechanism 5 is arranged to support the extrusion mechanism 8 to be stable, so that the extrusion mechanism 8 cannot incline or crack when extruding the pipe, and the production quality of the pipe is further ensured; the feeding mechanism 2 can control the feeding of materials in the base 15, so that the effect of completely removing the materials in the feeding hole 18 is achieved, and the feeding of the feeding mechanism 2 can be limited by the material limiting mechanism 3; the driving mechanism 4 can control not only the material limiting mechanism 3 but also the supporting mechanism 5 to support the extruding mechanism 8.

Specifically, the transmission mechanism 1 comprises a support 12, a base 15 is fixed at one end of the support 12, and a heating ring 7 for heating the raw material is arranged in the base 15; a motor 11 is fixed on the side wall of the support 12, a spiral feeding rod 17 is connected to the output end of the motor 11, and the spiral feeding rod 17 is matched with a feeding hole 18 in the support 12; a first chain wheel 19 is arranged on the surface of the spiral feeding rod 17, a chain 16 matched with the first chain wheel 19 is sleeved on the first chain wheel 19, a second chain wheel 110 is sleeved on the chain 16, the second chain wheel 110 is matched with the first chain wheel 19, and the diameter size of the second chain wheel 110 is larger than that of the first chain wheel 19; the second sprocket 110 is fixed to the flywheel 27 of the feeding mechanism 2. The material is heated to 90-120 ℃ by the arranged heating ring 7 to be in a molten state and then pushed by the spiral feeding rod 17 until the material is extruded and shaped from the extruding mechanism 8; the motor 11 that rotates through setting up drives the rotation of spiral feed rod 17, and simultaneously, motor 11 rotates and drives first sprocket 19 and rotate, and when first sprocket 19 rotated, first sprocket 19 drove second sprocket 110 through chain 16 and rotates, thereby realize that second sprocket 110 drives flywheel 27 and rotates, thereby flywheel 27 synchronous revolution, because the diameter size of second sprocket 110 is greater than the diameter size of first sprocket 19, after first sprocket 19 rotated many rings, second sprocket 110 could rotate the round.

Specifically, the transmission mechanism 1 further comprises a shell 13 located above the support 12, a protective cover 14 is installed at the top of the shell 13, and the protective cover 14 is fixed on the side wall of the feeding box 21 of the feeding mechanism 2.

The feeding mechanism 2 comprises a feeding hopper 211 fixed above the support 12 of the transmission mechanism 1, a feeding box 21 is fixed above the feeding hopper 211, a stirring shaft 22 rotating with the feeding box 21 is arranged inside the feeding box 21, a plurality of stirring rods 23 positioned inside the feeding box 21 are arranged on the surface of the stirring shaft 22, two flywheels 27 are arranged at one end of the stirring shaft 22, a first connecting rod 26 is movably connected between the two flywheels 27, a sieve plate 25 is movably connected to the bottom of the first connecting rod 26, and a plurality of sieve holes 24 uniformly distributed are arranged on the sieve plate 25; a rotating rod 29 is fixed at one end of the stirring shaft 22 far away from the flywheel 27, and a first support 28 fixed on the feeding box 21 is sleeved on the stirring shaft 22; a second connecting rod 210 is rotatably connected to the rotating rod 29, and the bottom end of the second connecting rod 210 is movably connected to the end part of the sieve plate 25; the sieve plate 25 is in sliding connection with a notch arranged on the inner wall of the feeding box 21; and a material blocking assembly 37 on the material limiting mechanism 3 is arranged below the sieve plate 25. Rotate through the flywheel 27 that sets up and drive first connecting rod 26 motion, first connecting rod 26 can stimulate the one end of sieve 25 and do and reciprocate, meanwhile, in the time of first connecting rod 26 motion, (mixing) shaft 22 rotates, (mixing) shaft 22 drives puddler 23 and rotates, bull stick 29 that is connected with (mixing) shaft 22 drives second connecting rod 210 in step and rotates, and then realize that second connecting rod 210 stimulates the other end of sieve 25 and does and reciprocate, and synchronous reciprocating of reciprocating is done at the both ends of sieve 25, thereby sieve 25 realizes the function of screening, and sieve 25 can follow the inside that sieve mesh 24 directly enters into feeder hopper 211 at the in-process material of screening and fall into the inside of frame 15.

The feeding mechanism 2 further comprises a feeding groove 212 formed in the side wall of the feeding hopper 211, a rotating plate 213 located inside the feeding groove 212 is mounted on the feeding hopper 211, and the rotating plate 213 is rotatably connected with the feeding hopper 211. When the tailings are discharged, the rotating plate 213 can be directly and manually opened to throw the tailings into the base 15 from the feed chute 212 for recycling, and the tailings can be firstly melted and pushed in the base 15, so that the first discharged connecting materials at the end of the extruding mechanism 8 are the tailings thrown into the feed hopper 211 last time, and the purpose of saving the tailings is achieved.

Material limiting mechanism 3 is including being located the inside fender material subassembly 37 of feeding case 21, keep off fixedly connected with movable plate 31 on material subassembly 37's the lateral wall, be provided with slide 33 on movable plate 31's the lateral wall, slide 33's inside is provided with spout 38, guide way 36 has been seted up to slide 33's below, guide way 36's inside is provided with rather than matched with guide block 35, the bottom of guide block 35 is fixed with stabilizer plate 32, stabilizer plate 32 is fixed at the top of cover 6. The material baffle 374 on the material baffle assembly 37 is driven to move by the movement of the arranged moving plate 31, so that the material baffle 374 can block materials, and therefore, when the spiral feeding rod 17 rotates and the tailings are output, the materials cannot fall into the base 15; the moving plate 31 can be driven to move by the arranged sliding plate 33, the guide groove 36 at the bottom of the moving plate 31 can slide on the guide block 35, so that the moving plate 31 slides in a certain range, and the maximum sliding distance of the sliding plate 33 is slightly larger than the length of the striker plate 374.

Specifically, keep off material subassembly 37 including fixing fixed pin 371 on the feeding case 21 lateral wall, the cover is equipped with rather than rotating the commentaries on classics cover 372 of being connected on the fixed pin 371, the tip at striker plate 374 is fixed to the lateral wall of commentaries on classics cover 372, striker plate 374 and movable plate 31 are fixed mutually, the inside of commentaries on classics cover 372 is fixed with the one end of torsional spring 373, the inside cover of torsional spring 373 is equipped with fixed pin 371, the other end of fixed torsional spring 373 on the lateral wall of fixed pin 371. Through the matching of the arranged fixing pin 371, the rotary sleeve 372 and the torsion spring 373, when the striker plate 374 is extruded by materials, the striker plate 374 rotates to realize buffering, so that the materials enter the inside of the base 15 from a gap between the striker plate 374 and the feeding box 21; when a worker fails or forgets to turn off the motor 11, the motor 11 can continuously drive the sieve plate 25 to sieve materials, so that more and more materials on the baffle plate 374 can be obtained, and the situation that the baffle plate 374 is not extruded by the materials can occur until the materials between the baffle plate 374 and the sieve plate 25 are stacked to the distance of the maximum size of the downward movement of the sieve plate 25, in this situation, the feeding mechanism 2 can be damaged, the damage of the feeding mechanism 2 is avoided through the matching of the arranged fixing pin 371, the rotating sleeve 372 and the torsion spring 373, and the service life is prolonged; keep off material subassembly 37 through setting up not only has played the function that blocks the material unloading, can also play the function of protection feed mechanism 2, and the elasticity of torsional spring 373 is greater than the gravity of material on striker plate 374.

Specifically, the material limiting mechanism 3 further comprises a screw rod 39 fixed inside the sliding plate 33, a second support 310 is rotatably connected to the outside of the screw rod 39 through a thread, the second support 310 is fixed on a first bevel gear 311, the second support 310 is fixed on the inner wall of the pillar 34, and both the screw rod 39 and the second support 310 are matched with the sliding groove 38; a third helical gear 413 of the drive mechanism 4 is engaged below the first helical gear 311. Through the arrangement of the first bevel gear 311 driven by the third bevel gear 413 on the driving mechanism 4, when the first bevel gear 311 rotates, the screw 39 inside the first bevel gear 311 can move through the threaded connection to realize the movement of the screw 39, and when the screw 39 moves, the screw 39 can drive the sliding plate 33 to move synchronously, and then the sliding plate 33 can drive the moving plate 31 to move synchronously, so that the moving plate 31 can drive the material blocking assembly 37 to move synchronously.

Specifically, the driving mechanism 4 includes a third bevel gear 413 matched with the material limiting mechanism 3, a transmission rod 412 is fixed on a side surface of the third bevel gear 413, a third bevel gear 413 engaged with the second bevel gear 411 is fixed on an end of the transmission rod 412 far away from the first bevel gear 311, and the transmission rod 412 is connected to an inner wall of the pillar 34 of the material limiting mechanism 3 through a bearing; the end part of the second bevel gear 411 is fixed at the end part of the rotating stick 46, two driving wheels 45 are fixed on the surface of the rotating stick 46, a driven wheel 48 matched with the driving wheel 45 is sleeved on the driving wheel 45, a plurality of insertion holes 47 are formed in the driven wheel 48, a plug pin 49 is installed in each insertion hole 47, a tightening sleeve 410 abutted against the plug pin 49 is arranged at the end part of each plug pin 49, and each tightening sleeve 410 is connected with the driving wheel 45 through threads; a rotating wheel 42 is fixed at one end of the rotating stick 46, a hexagonal hole 44 is formed in an outward convex hub of the rotating wheel 42, and a crank 43 is installed on the hub; the rotating roller 46 is rotatably connected with the driving box 41, the driving box 41 is fixed on the side wall of the casing 6, and the end part of a steel wire rope 52 on the supporting mechanism 5 is fixed on the driven wheel 48. Can cooperate the electric drill rotation of taking the hexagon head bolt through the hexagonal hole 44 that sets up, and then drive runner 42 rotates, also can rotate drive runner 42 through crank 43 and rotate, when runner 42 rotates, runner 42 drives and changes rod 46 and rotate, and then realize changeing rod 46 and can drive action wheel 45 synchronous rotation, when needs loosen supporting mechanism 5, insert bolt 49 the inside of jack 47, make from driving wheel 48 can be along with action wheel 45 synchronous rotation, because bolt 49 is the cuboid structure, can be fixed action wheel 45 and follow driving wheel 48 after bolt 49 inserts jack 47, and can not take place to rock relatively between action wheel 45 and the follow driving wheel 48, after bolt 49 has been inserted, need to screw up cover 410 and screw up, screw up through threaded connection between cover 410 and the action wheel 45.

Specifically, the supporting mechanism 5 includes a steel wire rope 52 fixed to the driven wheel 48, an end portion of the steel wire rope 52 far away from the driven wheel 48 is fixed to a supporting sleeve 54, a guide rod 55 is fixed to the middle portion of the supporting sleeve 54, a spring 56 is sleeved on the guide rod 55, the spring 56 is located inside a supporting rod 53, the supporting rod 53 is a telescopic rod, the guide rod 55 slides inside the supporting rod 53, the steel wire rope 52 is located on two sides of the supporting rod 53, the steel wire rope 52 is slidably mounted to a pulley 51 mounted on a side wall of the sleeve 6, and a bottom of the supporting sleeve 54 abuts against an outer wall of an outer sleeve 88 on the extruding mechanism 8. The arranged steel wire rope 52 is of a Y-shaped structure, the steel wire rope 52 is pulled by the driven wheel 48, so that the steel wire rope 52 moves for a short distance, and the steel wire rope 52 can be conveniently pulled to rotate through the arranged pulley 51; and then realize that wire rope 52 stimulates and supports cover 54 and remove to support cover 54 no longer supports extruding means 8, when wire rope 52 stimulates and supports cover 54 and remove, spring 56 compressed, and at this moment, bracing piece 53 contracts, and guide bar 55 slides in the inside of bracing piece 53 simultaneously, and at this moment, supporting means 5 no longer supports extruding means 8, conveniently dismantles and changes the outer sleeve 88 and the inner sleeve 87 of different models extrusion means 8, and then realizes the function that a aircraft nose can produce multiple model PVC-U tubular product.

Specifically, the extruding mechanism 8 includes an outer sleeve 88 abutting against the supporting mechanism 5, an inner sleeve 87 adapted to the outer sleeve 88 is installed inside the outer sleeve 88, the outer sleeve 88 is connected to an end of the air guide sleeve 86 through a thread, an air guide ball 84 is installed inside the air guide sleeve 86, one end of the air guide ball 84 is connected to a fixing block 85, the inner sleeve 87 is connected to the fixing block 85 through a thread, a transverse support rod 83 is fixed to one end of the air guide ball 84, a fixing rod 81 in a cross-shaped structure is fixed to an end of the transverse support rod 83, the air guide sleeve 86 and the fixing rod 81 are both fixed to the support 12 through a nut 82, and the air guide sleeve 86 is matched with the feed port 18 of the transmission mechanism 1. When the support sleeve 54 on the support mechanism 5 leaves the outer wall of the outer sleeve 88, the outer sleeve 88 is taken down from the air guide sleeve 86 by using a tool, and the inner sleeve 87 is taken down from the fixed block 85 at the same time, at this time, the air guide sleeve 86 is taken down from the base 15, the tailings are taken down from the air guide sleeve 86, and the tailings are thrown into the interior of the feed hopper 211 from the feed chute 212 on the side wall of the feed hopper 211 again; the outer sleeve 88 and the inner sleeve 87 are selected according to the actual production requirement, so that the distance between the inner wall of the outer sleeve 88 and the outer wall of the inner sleeve 87 is the wall thickness of the actual produced pipeline, the diameter of the outer wall of the inner sleeve 87 is the inner diameter of the produced pipeline, and the inner diameter of the outer sleeve 88 is the outer diameter of the actual produced pipeline. After the size is selected, the air guide sleeve 86 is installed on the machine base 15, the inner sleeve 87 and the outer sleeve 88 are sequentially installed, after installation is completed, the fixed driving mechanism 4 is loosened, the material blocking assembly 37 is taken out of the feeding box 21, the driving mechanism 4 is rotated, the driving mechanism 4 drives the steel wire rope 52 to reset, at the moment, the spring 56 resets, the supporting sleeve 54 can abut against the outer wall of the outer sleeve 88, installation is completed, the motor 11 is opened at the moment, and the extrusion molding machine head can normally produce pipes.

When the electromagnetic heating device is used, materials are firstly put into the feeding box, the motor and the heating ring are started, and the heating ring is heated in an electromagnetic heating mode, so that the electromagnetic heating device is the prior art and is not described again; the motor rotates, the motor drives the spiral feeding rod 17 to rotate, and when the spiral feeding rod rotates, the materials are pushed to the direction of the extruding mechanism by the spiral feeding rod; when the motor rotates, the motor 11 rotates to drive the first chain wheel 19 to rotate, when the first chain wheel 19 rotates, the first chain wheel 19 drives the second chain wheel 110 to rotate through the chain 16, so that the second chain wheel 110 drives the flywheel 27 to rotate, the flywheel 27 rotates synchronously, when the flywheel 27 rotates to drive the first connecting rod 26 to move, the first connecting rod 26 can pull one end of the sieve plate 25 to move up and down, meanwhile, when the first connecting rod 26 moves, the stirring shaft 22 rotates, the stirring shaft 22 drives the stirring rod 23 to rotate, the rotating rod 29 connected with the stirring shaft 22 synchronously drives the second connecting rod 210 to rotate, so that the second connecting rod 210 pulls the other end of the sieve plate 25 to move up and down, the two ends of the sieve plate 25 move up and down synchronously, and materials sieved by the sieve plate 25 enter the feeding hopper 211 and fall into the feeding hole 18 in the machine base 15; the materials are heated to a molten state by the heating ring 7 in the feeding hole 18, and are extruded from the extruding mechanism through the continuous rotation of the spiral feeding rod, so that the PVC-U-shaped pipe can be produced. When pipes of different models need to be produced, the extrusion mechanisms of different models need to be replaced; at this moment, in the time of the electric drill, need pull down the crank 43, output with the electric drill drives hexagonal hole 44, runner 42 rotates, perhaps rotate crank 43 and rotate drive runner 42 and rotate, when runner 42 rotates, runner 42 drives and changes rod 46 and rotate, it can drive action wheel 45 synchronous rotation to change rod 46, at this moment, need loosen supporting mechanism 5, insert the inside of jack 47 with bolt 49, follow driving wheel 48 and can rotate along with action wheel 45 synchronous, can fix action wheel 45 and follow driving wheel 48 after bolt 49 inserts jack 47, and can not take place relative rocking between action wheel 45 and the follow driving wheel 48, after bolt 49 has inserted, it can to screw up the cover 410 and screw up. Meanwhile, when the first bevel gear 311 is driven by the third bevel gear 413 of the driving mechanism 4, when the first bevel gear 311 rotates, the screw 39 inside the first bevel gear 311 can move through the threaded connection to realize the movement of the screw 39, and when the screw 39 moves, the screw 39 can drive the sliding plate 33 to move synchronously, and then the sliding plate 33 can drive the moving plate 31 to move synchronously, so that the moving plate 31 can drive the material blocking assembly 37 to move synchronously. Thereby the material blocking component blocks the bottom of the feeding box, thereby playing a role in preventing feeding; when the driven wheel 48 rotates, at this time, the steel wire rope 52 is pulled by the driven wheel 48 to further enable the steel wire rope 52 to move a short distance, and further enable the steel wire rope 52 to pull the support sleeve 54 to move, when the steel wire rope 52 pulls the support sleeve 54 to move, the spring 56 is compressed, at this time, the support rod 53 contracts, meanwhile, the guide rod 55 slides inside the support rod 53, and at this time, the support mechanism 5 does not support the extrusion mechanism 8 any more. When the support sleeve 54 on the support mechanism 5 leaves the outer wall of the outer sleeve 88, the outer sleeve 88 is taken down from the air guide sleeve 86 by using a tool, and the inner sleeve 87 is taken down from the fixed block 85 at the same time, at this time, the air guide sleeve 86 is taken down from the base 15, the tailings are taken down from the air guide sleeve 86, and the tailings are thrown into the interior of the feed hopper 211 from the feed chute 212 on the side wall of the feed hopper 211 again; the outer sleeve 88 and the inner sleeve 87 are selected according to the actual production requirement, so that the distance between the inner wall of the outer sleeve 88 and the outer wall of the inner sleeve 87 is the wall thickness of the actual produced pipeline, the diameter of the outer wall of the inner sleeve 87 is the inner diameter of the produced pipeline, and the inner diameter of the outer sleeve 88 is the outer diameter of the actual produced pipeline. After the size is selected, the air guide sleeve 86 is installed on the machine base 15, the inner sleeve 87 and the outer sleeve 88 are sequentially installed, after installation is completed, the fixed driving mechanism 4 is loosened, the material blocking assembly 37 is taken out of the feeding box 21, the driving mechanism 4 is rotated, the driving mechanism 4 drives the steel wire rope 52 to reset, at the moment, the spring 56 resets, the supporting sleeve 54 can abut against the outer wall of the outer sleeve 88, installation is completed, the motor 11 is opened at the moment, and the extrusion molding machine head can normally produce pipes.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A PVC-U pipe extrusion molding aircraft nose of convertible pipe diameter, its characterized in that: the feeding mechanism comprises a transmission mechanism (1), wherein a feeding mechanism (2) is connected to the transmission mechanism (1), one side of the feeding mechanism (2) is connected with a driving mechanism (4), the driving mechanism (4) is connected with a supporting mechanism (5), the driving mechanism (4) is positioned on one side of a casing (6), the casing (6) is fixed at one end of the transmission mechanism (1), a material limiting mechanism (3) is connected above the casing (6) in a sliding manner, the material limiting mechanism (3) is connected with the feeding mechanism (2), and the feeding mechanism (2) is in transmission connection with the transmission mechanism (1); the transmission mechanism (1) is connected with an extruding mechanism (8), the extruding mechanism (8) is positioned in the casing (6), and the extruding mechanism (8) is connected with the supporting mechanism (5);

the transmission mechanism (1) comprises a support (12), one end of the support (12) is fixed with a base (15), and a heating ring (7) for heating the raw materials is arranged in the base (15); a motor (11) is fixed on the side wall of the support (12), a spiral feeding rod (17) is connected to the output end of the motor (11), and the spiral feeding rod (17) is matched with a feeding hole (18) in the support (12); a first chain wheel (19) is arranged on the surface of the spiral feeding rod (17), a chain (16) matched with the first chain wheel is sleeved on the first chain wheel (19), a second chain wheel (110) is sleeved on the chain (16), the second chain wheel (110) is matched with the first chain wheel (19), and the diameter size of the second chain wheel (110) is larger than that of the first chain wheel (19); the second chain wheel (110) is fixed on the stirring shaft (22) of the feeding mechanism (2).

2. The PVC-U pipe extrusion molding machine head with changeable pipe diameters of claim 1, wherein: the transmission mechanism (1) further comprises a shell (13) located above the support (12), a protective cover (14) is installed at the top of the shell (13), and the protective cover (14) is fixed on the side wall of a feeding box (21) of the feeding mechanism (2).

3. The PVC-U pipe extrusion molding machine head with changeable pipe diameters of claim 2, wherein: the feeding mechanism (2) comprises a feeding hopper (211) fixed above a support (12) of the transmission mechanism (1), a feeding box (21) is fixed above the feeding hopper (211), a stirring shaft (22) rotating with the feeding box (21) is arranged inside the feeding box (21), a plurality of stirring rods (23) located inside the feeding box (21) are arranged on the surface of the stirring shaft (22), two flywheels (27) are arranged at one end of the stirring shaft (22), a first connecting rod (26) is movably connected between the two flywheels (27), a sieve plate (25) is movably connected to the bottom of the first connecting rod (26), and a plurality of sieve holes (24) which are uniformly distributed are formed in the sieve plate (25); a rotating rod (29) is fixed at one end of the stirring shaft (22) far away from the flywheel (27), and a first support (28) fixed on the feeding box (21) is sleeved on the stirring shaft (22); the rotating rod (29) is rotatably connected with a second connecting rod (210), and the bottom end of the second connecting rod (210) is movably connected to the end part of the sieve plate (25); the sieve plate (25) is in sliding connection with a notch arranged on the inner wall of the feeding box (21); and a material blocking assembly (37) on the material limiting mechanism (3) is arranged below the sieve plate (25).

4. The PVC-U pipe extrusion molding machine head with changeable pipe diameters of claim 3, wherein: feed mechanism (2) are still including offering feed chute (212) on feed hopper (211) lateral wall, install on feed hopper (211) and be located inside commentaries on classics board (213) of feed chute (212), just change board (213) with feed hopper (211) rotate to be connected.

5. The PVC-U pipe extrusion molding machine head with changeable pipe diameters of claim 4, wherein: material limiting mechanism (3) is including being located inside fender material subassembly (37) of feeding case (21), fixedly connected with movable plate (31) on the lateral wall of fender material subassembly (37), be provided with slide (33) on the lateral wall of movable plate (31), the inside of slide (33) is provided with spout (38), guide way (36) have been seted up to the below of slide (33), the inside of guide way (36) is provided with rather than matched with guide block (35), the bottom of guide block (35) is fixed with stabilizer plate (32), stabilizer plate (32) are fixed at the top of cover shell (6).

6. The PVC-U pipe extrusion molding machine head with changeable pipe diameters of claim 5, wherein: keep off material subassembly (37) including fixing fixed pin (371) on feeding case (21) lateral wall, the cover is equipped with rather than rotating commentaries on classics cover (372) of being connected on fixed pin (371), the tip at striker plate (374) is fixed to the lateral wall of commentaries on classics cover (372), striker plate (374) and movable plate (31) are fixed mutually, the inside of commentaries on classics cover (372) is fixed with the one end of torsional spring (373), the inside cover of torsional spring (373) is equipped with fixed pin (371), the other end of fixed torsional spring (373) on the lateral wall of fixed pin (371).

7. The PVC-U pipe extrusion molding machine head with changeable pipe diameters of claim 6, wherein: the material limiting mechanism (3) further comprises a screw rod (39) fixed inside the sliding plate (33), a second support (310) is rotatably connected to the outside of the screw rod (39) through threads, the second support (310) is fixed on the first bevel gear (311), the second support (310) is fixed on the inner wall of the support column (34), and the screw rod (39) and the second support (310) are matched with the sliding groove (38); and a third bevel gear (413) on the driving mechanism (4) is meshed below the first bevel gear (311).

8. The PVC-U pipe extrusion molding machine head with changeable pipe diameters of claim 7, wherein: the driving mechanism (4) comprises a third bevel gear (413) matched with the material limiting mechanism (3), a transmission rod (412) is fixed on the side face of the third bevel gear (413), the end, far away from the first bevel gear (311), of the transmission rod (412) is fixed with the third bevel gear (413) meshed with the second bevel gear (411), and the transmission rod (412) is connected to the inner wall of a support column (34) of the material limiting mechanism (3) through a bearing; the end part of the second bevel gear (411) is fixed at the end part of the rotating rod (46), two driving wheels (45) are fixed on the surface of the rotating rod (46), a driven wheel (48) matched with the driving wheels is sleeved on the driving wheels (45), a plurality of insertion holes (47) are formed in the driven wheel (48), a plug pin (49) is installed inside each insertion hole (47), a tightening sleeve (410) abutted against the plug pin (49) is arranged at the end part of each plug pin (49), and each tightening sleeve (410) is connected with the driving wheels (45) through threads; a rotating wheel (42) is fixed at one end of the rotating rod (46), a hexagonal hole (44) is formed in an outward convex hub of the rotating wheel (42), and a crank (43) is mounted on the hub; the rotary rod (46) is rotatably connected with the driving box (41), the driving box (41) is fixed on the side wall of the casing (6), and the end part of a steel wire rope (52) on the supporting mechanism (5) is fixed on the driven wheel (48).

9. The PVC-U pipe extrusion molding machine head with changeable pipe diameter according to claim 8, characterized in that: the supporting mechanism (5) comprises a steel wire rope (52) fixed to a driven wheel (48), the end, far away from the driven wheel (48), of the steel wire rope (52) is fixed to a supporting sleeve (54), a guide rod (55) is fixed to the middle of the supporting sleeve (54), a spring (56) is sleeved on the guide rod (55), the spring (56) is located inside a supporting rod (53), the supporting rod (53) is a telescopic rod, the guide rod (55) slides inside the supporting rod (53), the steel wire rope (52) is located on two sides of the supporting rod (53), the steel wire rope (52) is slidably mounted with a pulley (51) mounted on the side wall of a sleeve (6), and the bottom of the supporting sleeve (54) abuts against the outer wall of an outer sleeve (88) on the extruding mechanism (8).

10. The PVC-U pipe extrusion molding machine head with changeable pipe diameters of claim 9, wherein: the extrusion mechanism (8) comprises an outer sleeve (88) which is abutted with the supporting mechanism (5), an inner sleeve (87) matched with the outer sleeve (88) is arranged in the outer sleeve (88), the outer sleeve (88) is connected with the end part of the air guide sleeve (86) through threads, the air guide sleeve (86) is internally provided with an air guide ball (84), one end of the flow guide ball (84) is connected with a fixed block (85), the inner sleeve (87) is connected on the fixed block (85) through threads, one end of the diversion ball (84) is fixed with a transverse brace rod (83), the end part of the transverse brace rod (83) is fixed with a fixed rod (81) which is in a cross-shaped structure, the air guide sleeve (86) and the fixing rod (81) are fixed with the support (12) through nuts (82), the air guide sleeve (86) is matched with the feed inlet (18) on the transmission mechanism (1).