CN113021855A - Biaxial stretching equipment for pipe processing and stretching method thereof - Google Patents

Biaxial stretching equipment for pipe processing and stretching method thereof Download PDF

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Publication number
CN113021855A
CN113021855A CN202110237442.8A CN202110237442A CN113021855A CN 113021855 A CN113021855 A CN 113021855A CN 202110237442 A CN202110237442 A CN 202110237442A CN 113021855 A CN113021855 A CN 113021855A
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China
Prior art keywords
pipe
outer side
pipe body
stretching device
fixedly connected
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CN202110237442.8A
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Chinese (zh)
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CN113021855B (en
Inventor
闫瑞强
何志才
陈伟
黄剑
张航媛
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Ad Pipeline Zhejiang Co ltd
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Taizhou University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/22Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes
    • B29C55/26Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes biaxial

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a biaxial stretching device for processing a pipe and a stretching method thereof, and the biaxial stretching device comprises a bottom plate, wherein the top end of the bottom plate is fixedly connected with a pipe extruder, one end of the pipe extruder is provided with a stretching device, the stretching device comprises a first connecting rod, a second connecting rod and a conical plate, one end of the pipe extruder is fixedly connected with a transverse bearing rod, the outer side of the transverse bearing rod is in annular matrix equidistant hinge joint with four first connecting rods, one end of each first connecting rod is in hinge joint with a second connecting rod, the outer side of the transverse bearing rod is in threaded sleeve joint with a sleeve, the outer side of the sleeve is provided with a ring groove, and the outer side of the sleeve. The invention has the beneficial effects that: according to the invention, through the design of the stretching device, the pipe body is contacted with the outer side of the conical plate, the inner wall of the pipe body moves along the outer side of the conical plate, so that the diameter of the pipe body is enlarged, and the two first traction wheels rotate and push the pipe body to move, so that the diameter of the pipe is stretched.

Description

Biaxial stretching equipment for pipe processing and stretching method thereof
Technical Field
The invention relates to a pipe stretching device, in particular to a bidirectional stretching device for pipe processing and a stretching method thereof, belonging to the technical field of pipe processing devices.
Background
In recent years, with the rapid development of the domestic construction industry and infrastructure, the demand of the infrastructure industry on pipes is rapidly increased, the application of the pipes is widely applied to pipelines made of nonmetal materials such as pvc, the diameter requirement of the pipelines is increased more and more, the pipes are constrained by the production of the domestic pipes, and the pipes are generally required to be stretched after being produced so as to widen the diameter of the pipes.
When the existing pipe is stretched in diameter, the air bag is generally used for supporting the inside of the pipe so as to widen the diameter of the pipe, when the air bag is used for supporting and stretching the inside of the pipe, the stretching effect on the diameter of the pipe is limited, the existing pipe is stretched in diameter, the pipe has the condition that the inner wall or the outer wall of the pipe is unbalanced, and the existing pipe stretching device is only provided with one group on the traction device so that the pipe is easily subjected to large extrusion force.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a biaxial stretching machine for pipe processing and a stretching method thereof.
The invention realizes the purpose by the following technical scheme, and the biaxial tension device for processing the pipe comprises a bottom plate, wherein the top end of the bottom plate is fixedly connected with a pipe extruder, one end of the pipe extruder is provided with a tension device, the tension device comprises a first connecting rod, a second connecting rod and a conical plate, one end of the pipe extruder is fixedly connected with a transverse bearing rod, the outer side of the transverse bearing rod is hinged with four first connecting rods in an annular matrix at equal intervals, one end of each first connecting rod is hinged with a second connecting rod, the outer side of the transverse bearing rod is in threaded sleeve connection with a sleeve, the outer side of the sleeve is provided with a ring groove, the outer side of the sleeve is sleeved with an installation block, one end of each second connecting rod is hinged with the outer side of the installation block, the outer sides of the four first connecting rods are fixedly connected with a plurality of arc-shaped plates, and the outer sides of the conical plates are fixedly, one side of the stretching device is provided with a correcting device, the correcting device comprises a correcting pipe, the outer side of the transverse bearing rod is sleeved with an installation pipe, the outer side of the installation pipe is fixedly connected with a plurality of connecting rods in an annular array at equal intervals, the outer sides of the connecting rods are fixedly connected with the correcting pipe, the outer side of the stretching device is provided with a first shaping pipe, the outer side of the correcting device is provided with a second shaping pipe, the interiors of the first shaping pipe and the second shaping pipe are connected with a pipe body in an inserting manner, one side of the pipe extruder is provided with a first traction mechanism, the first traction mechanism comprises a first driving shaft, a first driven shaft and a first traction wheel, the top end of the bottom plate is symmetrically and fixedly connected with two first longitudinal plates, one side of the two first longitudinal plates is respectively connected with the first driving shaft and the first driven shaft in an inserting manner, and the outer sides of the first driving shaft and the first driven shaft are both fixedly sleeved, the outer side of the first driving shaft is fixedly sleeved with a driving gear, the outer side of the first driven shaft is fixedly sleeved with a driven gear, the outer side of the driving gear is meshed with the outer side of the driven gear, the top end of the bottom plate is provided with a second traction mechanism, and the second traction mechanism comprises a second driving shaft, a second driven shaft and a second traction wheel.
Preferably, the outside of horizontal carrier bar is fixed the cover and is connected with the dog, the outside screw thread of horizontal carrier bar has cup jointed the fastening block.
Preferably, a plurality of supporting plates are fixedly connected to the outer sides of the first modeling pipe and the second modeling pipe, and the bottom ends of the supporting plates are fixedly connected with the top end of the bottom plate.
Preferably, the top end of the bottom plate is fixedly connected with a driving motor, and a second belt wheel is fixedly sleeved on the outer side of the driving motor.
Preferably, a first belt wheel is fixedly sleeved on the outer side of the first driving shaft, and a first belt is meshed on the outer sides of the first belt wheel and the second belt wheel.
Preferably, the top end of the bottom plate is symmetrically and fixedly connected with two second longitudinal plates, and a second driving shaft and a second driven shaft are inserted into one side of each of the two second longitudinal plates.
Preferably, the outer sides of the second driving shaft and the second driven shaft are fixedly sleeved with a second traction wheel, and the outer side of the second driving shaft is fixedly sleeved with a fourth belt wheel.
Preferably, a third belt wheel is fixedly sleeved on the outer side of the driving motor, and a second belt is engaged with the outer sides of the third belt wheel and the fourth belt wheel.
Preferably, the inner wall of the first modeling pipe is fixedly embedded with a heating pipe, and the inside of the heating pipe is inserted and connected with the outer side of the pipe body.
A stretching method of biaxial stretching equipment for processing pipes comprises the following steps:
step 1: an operator rotates the sleeve clockwise, the sleeve moves towards the direction close to the pipe extruder along the direction of the transverse bearing rod, the sleeve drives the mounting block to move together, the mounting block drives the second connecting rod to move, and the second connecting rod drives the first connecting rod to move, so that the inclination angle of the first connecting rod is increased, and the position of the conical plate is adjusted;
step 2: an operator sleeves the mounting pipe on the outer side of the transverse bearing rod and moves the mounting pipe until one end of the mounting pipe is in contact with one side of the stop block, and the operator sleeves the fastening block on the outer side of the transverse bearing rod in a threaded manner until the fastening block and the stop block clamp the mounting pipe;
and step 3: an operator starts the pipe extruder, the pipe extruder extrudes the pipe body, and the first driving shaft and the first driven shaft respectively drive the first traction wheel on the outer side of the first driving shaft and the first driven shaft to rotate and push the pipe body to move towards the inside of the first molding pipe;
and 4, step 4: the pipe body penetrates through the heating pipe and is heated through the heating pipe, the pipe body is contacted with the outer side of the conical plate, the inner wall of the pipe body moves along the outer side of the conical plate, so that the diameter of the pipe body is enlarged, the pipe body continues to move until the outer side of the pipe body is contacted with the inner wall of the first modeling pipe, and the outer diameter of the pipe body is restrained through the first modeling pipe;
and 5: the correction pipe and the second modeling pipe are used for restraining the inner diameter and the outer diameter of the pipe body, so that the diameter of the output pipe body is integrally consistent, and the pipe body continues to move until the pipe body passes through the two second traction wheels.
The invention has the beneficial effects that: firstly, through the design of the stretching device, the pipe body penetrates through the heating pipe and heats the pipe body through the heating pipe, the pipe body is contacted with the outer side of the conical plate, the inner wall of the pipe body moves along the outer side of the conical plate, so that the diameter of the pipe body is enlarged, the pipe body continues to move until the outer side of the pipe body is contacted with the inner wall of the first modeling pipe, so that the outer diameter of the pipe body is restrained through the first modeling pipe, the two first traction wheels rotate and push the pipe body to move, and the diameter of the pipe is stretched under the action of the conical plates.
According to the invention, through the design of the correction device, the pipe body moves to the outer side of the correction pipe and moves along the outer side of the correction pipe, the inner diameter and the outer diameter of the pipe body are restrained through the correction pipe and the second modeling pipe, so that the diameter of the output pipe body is integrally consistent, the pipe body continues to move until the pipe body passes through the two second traction wheels, and the outer side and the inner wall of the pipe body are smoother under the combined action of the correction pipe and the second modeling pipe when the pipe body moves.
Through the design of the first traction mechanism and the second traction mechanism, the first driving shaft drives the first traction wheel on the outer side of the first driving shaft to rotate, the first driving shaft drives the driving gear to rotate, the driving gear is in meshing transmission with the driven gear and drives the driven gear to rotate anticlockwise, the driven gear drives the first driven shaft to rotate, the first driven shaft drives the first traction wheel on the outer side of the first driven shaft to rotate anticlockwise, the two first traction wheels rotate and push the pipe body to move towards the inside of the first molding pipe, the second driving shaft drives the second traction wheel on the outer side of the second driving shaft to rotate, and the first traction wheel and the second traction wheel rotate to realize the traction effect on the pipe body so as to reduce the extrusion force of the pipe body.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the tube body of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is a schematic structural view of a stretching apparatus according to the present invention;
FIG. 5 is a schematic structural view of a first traction mechanism according to the present invention;
FIG. 6 is an enlarged view of the structure at B in FIG. 5 according to the present invention.
In the figure: 1. a base plate; 2. a pipe extruder; 3. a transverse carrier bar; 4. a first link; 5. a second link; 6. a sleeve; 7. a ring groove; 8. mounting blocks; 9. an arc-shaped plate; 10. a tapered plate; 11. a stopper; 12. installing a pipe; 13. a fastening block; 14. a connecting rod; 15. correcting the tube; 16. a first molding tube; 17. a second molding tube; 18. a tube body; 19. a first longitudinal plate; 20. a first drive shaft; 21. a first driven shaft; 22. a first traction wheel; 23. a driven gear; 24. a first pulley; 25. a second pulley; 26. a first belt; 27. a drive motor; 28. a second longitudinal plate; 29. a second driving shaft; 30. a second driven shaft; 31. a second traction wheel; 32. a third belt pulley; 33. a fourth pulley; 34. a second belt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a biaxial stretching device for processing pipes comprises a base plate 1, a pipe extruder 2 is fixedly connected to the top end of the base plate 1, a stretching device is arranged at one end of the pipe extruder 2, the stretching device comprises a first connecting rod 4, a second connecting rod 5 and a conical plate 10, one end of the pipe extruder 2 is fixedly connected with a transverse bearing rod 3, the transverse bearing rod 3 is in a circular structure, the outer side of the transverse bearing rod 3 is in an annular matrix and is equidistantly hinged with four first connecting rods 4, one end of each of the four first connecting rods 4 is hinged with a second connecting rod 5, the cross sections of the first connecting rod 4 and the second connecting rod 5 are in a square structure, a sleeve 6 is sleeved on the outer side thread of the transverse bearing rod 3, an internal thread is arranged on the inner wall of the sleeve 6, a ring groove 7 is arranged on the outer side of the sleeve 6, a mounting block 8 is sleeved on the outer side of, one end of each of the four second connecting rods 5 is hinged with the outer side of the mounting block 8, the outer sides of the four first connecting rods 4 are fixedly connected with a plurality of arc plates 9, the outer sides of the arc plates 9 are fixedly connected with conical plates 10, one side of the stretching device is provided with a correction device, the correction device comprises a correction pipe 15, the outer side of the transverse bearing rod 3 is sleeved with a mounting pipe 12, the outer side of the mounting pipe 12 is fixedly connected with a plurality of connecting rods 14 in an annular array at equal intervals, the outer sides of the connecting rods 14 are fixedly connected with a correction pipe 15, the correction pipe 15 is in a conical structure, the diameter of the larger end of the correction pipe 15 is consistent with the circular diameter enclosed by the four conical plates 10, the outer side of the stretching device is provided with a first modeling pipe 16, the outer side of the correction device is provided with a second modeling pipe 17, the diameter of the first modeling pipe 16 is consistent with the diameter of the second modeling pipe 17, and pipe, one side of the pipe extruder 2 is provided with a first traction mechanism, the first traction mechanism comprises a first driving shaft 20, a first driven shaft 21 and a first traction wheel 22, the top end of the bottom plate 1 is symmetrically and fixedly connected with two first longitudinal plates 19, one side of the two first longitudinal plates 19 is respectively inserted with the first driving shaft 20 and the first driven shaft 21, the outer sides of the first driving shaft 20 and the first driven shaft 21 are fixedly sleeved with the first traction wheel 22, the outer side of the first traction wheel 22 is contacted with the outer side of the pipe body 18, the outer side of the first driving shaft 20 is fixedly sleeved with a driving gear, the outer side of the first driven shaft 21 is fixedly sleeved with a driven gear 23, the outer side of the driving gear is engaged with the outer side of the driven gear 23, the top end of the bottom plate 1 is provided with a second traction mechanism, the second traction mechanism comprises a second driving, a second driven shaft 30 and a second traction wheel 31, the outer side of the second traction wheel 31 is in contact with the outer side of the pipe body 18.
As a technical optimization scheme of the invention, a stop block 11 is fixedly sleeved on the outer side of the transverse bearing rod 3, and a fastening block 13 is sleeved on the outer side of the transverse bearing rod 3 in a threaded manner.
As a technical optimization scheme of the invention, a plurality of supporting plates are fixedly connected to the outer sides of the first modeling pipe 16 and the second modeling pipe 17, and the bottom ends of the supporting plates are fixedly connected with the top end of the bottom plate 1.
As a technical optimization scheme of the invention, the top end of the bottom plate 1 is fixedly connected with a driving motor 27, and the outer side of the driving motor 27 is fixedly sleeved with a second belt wheel 25.
As a technical optimization scheme of the invention, a first belt pulley 24 is fixedly sleeved on the outer side of the first driving shaft 20, and a first belt 26 is meshed on the outer sides of the first belt pulley 24 and the second belt pulley 25.
As a technical optimization scheme of the invention, two second longitudinal plates 28 are symmetrically and fixedly connected to the top end of the bottom plate 1, and a second driving shaft 29 and a second driven shaft 30 are inserted into one side of each of the two second longitudinal plates 28.
As a technical optimization scheme of the present invention, a second traction wheel 31 is fixedly sleeved on the outer sides of the second driving shaft 29 and the second driven shaft 30, a fourth belt wheel 33 is fixedly sleeved on the outer side of the second driving shaft 29, a third belt wheel 32 is fixedly sleeved on the outer side of the driving motor 27, a second belt 34 is engaged with the outer sides of the third belt wheel 32 and the fourth belt wheel 33, the diameters of the first belt wheel 24, the second belt wheel 25 and the third belt wheel 32 are the same, and the diameter of the fourth belt wheel 33 is one-half of the diameter of the third belt wheel 32, so as to prevent the pipe body 18 from being subjected to a large extrusion force.
As a technical optimization scheme of the present invention, a heating pipe is fixedly embedded in the inner wall of the first shaping pipe 16, the inside of the heating pipe is inserted and connected with the outer side of the pipe body 18, and the heating pipe is used for heating the pipe body 18, so as to improve the ductility of the pipe body 18 and prevent the pipe body 18 from cracking.
A stretching method of biaxial stretching equipment for processing pipes comprises the following steps:
step 1: an operator rotates the sleeve 6 clockwise, the sleeve 6 moves towards the direction close to the pipe extruder 2 along the direction of the transverse bearing rod 3, the sleeve 6 drives the mounting block 8 to move together, the mounting block 8 drives the second connecting rod 5 to move, and the second connecting rod 5 drives the first connecting rod 4 to move, so that the inclination angle of the first connecting rod 4 is increased, and the position of the conical plate 10 is adjusted;
step 2: an operator sleeves the mounting pipe 12 on the outer side of the transverse bearing rod 3 and moves the mounting pipe 12 until one end of the mounting pipe 12 is in contact with one side of the stop block 11, and the operator sleeves the fastening block 13 on the outer side of the transverse bearing rod 3 in a threaded manner until the fastening block 13 and the stop block 11 clamp the mounting pipe 12 tightly;
and step 3: an operator starts the pipe extruder 2, the pipe extruder 2 extrudes the pipe body 18, and the first driving shaft 20 and the first driven shaft 21 respectively drive the first traction wheel 22 on the outer side to rotate and push the pipe body 18 to move towards the inside of the first molding pipe 16;
and 4, step 4: the pipe body 18 penetrates through the heating pipe and heats the pipe body 18 through the heating pipe, the pipe body 18 is in contact with the outer side of the conical plate 10, the inner wall of the pipe body 18 moves along the outer side of the conical plate 10, so that the diameter of the pipe body 18 is enlarged, the pipe body 18 continues to move until the outer side of the pipe body 18 is in contact with the inner wall of the first molding pipe 16, and the outer diameter of the pipe body 18 is restrained through the first molding pipe 16;
and 5: the correction tube 15 and the second modeling tube 17 realize the restraint of the inner diameter and the outer diameter of the tube body 18, so that the diameter of the output tube body 18 is integrally consistent, and the tube body 18 continues to move until the tube body 18 passes through the two second traction wheels 31.
When the pipe extruder is used, an operator adjusts the position of the conical plate 10, the operator rotates the sleeve 6 clockwise, the sleeve 6 moves towards the direction close to the pipe extruder 2 along the direction of the transverse bearing rod 3, the sleeve 6 drives the mounting block 8 to move together, the mounting block 8 drives the second connecting rod 5 to move, and the second connecting rod 5 drives the first connecting rod 4 to move, so that the inclination angle of the first connecting rod 4 is increased, and the position of the conical plate 10 is adjusted.
The operator overlaps the outside at horizontal carrier bar 3 with installation pipe 12 to remove installation pipe 12, until the one end of installation pipe 12 and the one side contact of dog 11, the operator cup joints the fastening block 13 screw thread in the outside of horizontal carrier bar 3, until fastening block 13 and dog 11 will install pipe 12 and press from both sides tightly.
An operator starts the pipe extruder 2, the pipe extruder 2 extrudes the pipe body 18, the pipe body 18 passes through the two first traction wheels 22, the operator restarts the driving motor 27, an output shaft of the driving motor 27 rotates clockwise and drives the second belt wheel 25 to rotate, the second belt wheel 25 drives the first belt wheel 24 to rotate through the first belt 26, the first belt wheel 24 rotates and drives the first driving shaft 20 to rotate clockwise, the first driving shaft 20 drives the first traction wheel 22 on the outer side of the first driving shaft 20 to rotate, the first driving shaft 20 drives the driving gear to rotate, the driving gear is meshed with the driven gear 23 to drive the driven gear 23 to rotate counterclockwise, the driven gear 23 drives the first driven shaft 21 to rotate, the first driven shaft 21 drives the first traction wheel 22 on the outer side of the first driven shaft to rotate counterclockwise, and the two first traction wheels 22 rotate and push the pipe body 18 to move towards the inside of the first molding pipe 16.
The pipe body 18 penetrates through the heating pipe and heats the pipe body 18 through the heating pipe, the pipe body 18 is in contact with the outer side of the conical plate 10, the inner wall of the pipe body 18 moves along the outer side of the conical plate 10, so that the diameter of the pipe body 18 is enlarged, the pipe body 18 continues to move until the outer side of the pipe body 18 is in contact with the inner wall of the first modeling pipe 16, and the outer diameter of the pipe body 18 is restrained through the first modeling pipe 16.
The pipe body 18 continuously moves to the outer side of the correction pipe 15 and moves along the outer side of the correction pipe 15, the inner diameter and the outer diameter of the pipe body 18 are restrained through the correction pipe 15 and the second modeling pipe 17, so that the diameter of the output pipe body 18 is integrally consistent, and the pipe body 18 continuously moves until the pipe body 18 passes through the two second traction wheels 31.
The clockwise rotation of driving motor 27 output shaft drives third band pulley 32 and rotates, and third band pulley 32 rotates and drives fourth band pulley 33 clockwise rotation through second belt 34, and fourth band pulley 33 rotates and drives second driving shaft 29 and rotates, and second driving shaft 29 drives the second traction wheel 31 in its outside and rotates, and second traction wheel 31 rotates in order to realize the traction effect to tubular product body 18.
For those skilled in the art, firstly, the invention is designed by the stretching device, the pipe body 18 passes through the heating pipe and heats the pipe body 18 through the heating pipe, the pipe body 18 is contacted with the outer side of the conical plate 10, the inner wall of the pipe body 18 moves along the outer side of the conical plate 10, thereby realizing the diameter expansion of the pipe body 18, the pipe body 18 continues to move until the outer side of the pipe body 18 is contacted with the inner wall of the first shaping pipe 16, so as to restrain the outer diameter of the pipe body 18 through the first shaping pipe 16, the two first traction wheels 22 rotate and push the pipe body 18 to move, and under the action of the plurality of conical plates 10, the diameter stretching of the pipe body 18 is realized.
Secondly, through the design of the correction device, the pipe body 18 moves to the outer side of the correction pipe 15 and moves along the outer side of the correction pipe 15, the inner diameter and the outer diameter of the pipe body 18 are restrained through the correction pipe 15 and the second modeling pipe 17, so that the diameter of the output pipe body 18 is integrally consistent, the pipe body 18 continues to move until the pipe body 18 passes through the two second traction wheels 31, and the outer side and the inner wall of the pipe body 18 are smoother under the combined action of the correction pipe 15 and the second modeling pipe 17 when the pipe body 18 moves.
Third, through the design of the first traction mechanism and the second traction mechanism, the first driving shaft 20 drives the first traction wheel 22 on the outer side to rotate, the first driving shaft 20 drives the driving gear to rotate, the driving gear is in meshing transmission with the driven gear 23 and drives the driven gear 23 to rotate anticlockwise, the driven gear 23 drives the first driven shaft 21 to rotate, the first driven shaft 21 drives the first traction wheel 22 on the outer side to rotate anticlockwise, the two first traction wheels 22 rotate and push the pipe body 18 to move towards the inside of the first molding pipe 16, the second driving shaft 29 drives the second traction wheel 31 on the outer side to rotate, the traction effect on the pipe body 18 is achieved through the rotation of the first traction wheel 22 and the second traction wheel 31, and the extrusion force of the pipe body 18 is reduced.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. The utility model provides a biaxial stretching equipment is used in tubular product processing, includes bottom plate (1), its characterized in that: the top end of the bottom plate (1) is fixedly connected with a pipe extruder (2), one end of the pipe extruder (2) is provided with a stretching device, the stretching device comprises a first connecting rod (4), a second connecting rod (5) and a conical plate (10), one end of the pipe extruder (2) is fixedly connected with a transverse bearing rod (3), the outer side of the transverse bearing rod (3) is hinged with four first connecting rods (4) in an annular matrix equidistance mode, one end of each first connecting rod (4) is hinged with a second connecting rod (5), the outer side thread of the transverse bearing rod (3) is sleeved with a sleeve (6), the outer side of the sleeve (6) is provided with an annular groove (7), the outer side of the sleeve (6) is sleeved with an installation block (8), one end of each second connecting rod (5) is hinged with the outer side of the installation block (8), and the outer sides of the four first connecting rods (4) are fixedly connected with a plurality of arc plates (9), the outer side of the arc-shaped plate (9) is fixedly connected with a conical plate (10), one side of the stretching device is provided with a correcting device, the correcting device comprises a correcting pipe (15), the outer side of the transverse bearing rod (3) is sleeved with a mounting pipe (12), the outer side of the mounting pipe (12) is fixedly connected with a plurality of connecting rods (14) in an annular array equidistance manner, the outer sides of the connecting rods (14) are fixedly connected with the correcting pipe (15), the outer side of the stretching device is provided with a first molding pipe (16), the outer side of the correcting device is provided with a second molding pipe (17), the first molding pipe (16) and the second molding pipe (17) are connected with a pipe body (18) in an inserting manner, one side of the pipe extruder (2) is provided with a first traction mechanism, and the first traction mechanism comprises a first driving shaft (20), a first driven shaft (21) and a first traction wheel (22), the top symmetry fixedly connected with of bottom plate (1) two first vertical boards (19), two peg graft respectively in one side of first vertical board (19) and have first driving shaft (20) and first driven shaft (21), first traction wheel (22) have all been fixed to have cup jointed in the outside of first driving shaft (20) and first driven shaft (21), the outside of first driving shaft (20) is fixed to have cup jointed the driving gear, the outside of first driven shaft (21) is fixed to have cup jointed driven gear (23), the outside of driving gear and the outside meshing of driven gear (23), the top of bottom plate (1) is provided with second drive mechanism, second drive mechanism includes second driving shaft (29), second driven shaft (30) and second traction wheel (31).
2. The biaxial stretching device for pipe processing according to claim 1, wherein: the outer side of the transverse bearing rod (3) is fixedly sleeved with a stop block (11), and the outer side of the transverse bearing rod (3) is sleeved with a fastening block (13) in a threaded manner.
3. The biaxial stretching device for pipe processing according to claim 1, wherein: the outer sides of the first modeling pipe (16) and the second modeling pipe (17) are fixedly connected with a plurality of supporting plates, and the bottom ends of the supporting plates are fixedly connected with the top end of the bottom plate (1).
4. The biaxial stretching device for pipe processing according to claim 1, wherein: the top end of the bottom plate (1) is fixedly connected with a driving motor (27), and the outer side of the driving motor (27) is fixedly sleeved with a second belt wheel (25).
5. The biaxial stretching device for pipe processing according to claim 1, wherein: a first belt wheel (24) is fixedly sleeved on the outer side of the first driving shaft (20), and a first belt (26) is meshed on the outer sides of the first belt wheel (24) and the second belt wheel (25).
6. The biaxial stretching device for pipe processing according to claim 1, wherein: the top end of the bottom plate (1) is symmetrically and fixedly connected with two second longitudinal plates (28), and a second driving shaft (29) and a second driven shaft (30) are inserted into one side of each of the two second longitudinal plates (28).
7. The biaxial stretching device for pipe processing according to claim 1, wherein: and the outer sides of the second driving shaft (29) and the second driven shaft (30) are fixedly sleeved with a second traction wheel (31), and the outer side of the second driving shaft (29) is fixedly sleeved with a fourth belt wheel (33).
8. The biaxial stretching device for pipe processing according to claim 4, wherein: a third belt wheel (32) is fixedly sleeved on the outer side of the driving motor (27), and a second belt (34) is meshed on the outer sides of the third belt wheel (32) and the fourth belt wheel (33).
9. The biaxial stretching device for pipe processing according to claim 1, wherein: the inner wall of the first modeling pipe (16) is fixedly embedded with a heating pipe, and the inside of the heating pipe is connected with the outer side of the pipe body (18) in a penetrating manner.
10. A stretching method of biaxial stretching equipment for pipe processing is characterized in that: the method comprises the following steps:
step 1: an operator rotates the sleeve 6 clockwise, the sleeve 6 moves towards the direction close to the pipe extruder 2 along the direction of the transverse bearing rod 3, the sleeve 6 drives the mounting block 8 to move together, the mounting block 8 drives the second connecting rod 5 to move, and the second connecting rod 5 drives the first connecting rod 4 to move, so that the inclination angle of the first connecting rod 4 is increased, and the position of the conical plate 10 is adjusted;
step 2: an operator sleeves the mounting pipe 12 on the outer side of the transverse bearing rod 3 and moves the mounting pipe 12 until one end of the mounting pipe 12 is in contact with one side of the stop block 11, and the operator sleeves the fastening block 13 on the outer side of the transverse bearing rod 3 in a threaded manner until the fastening block 13 and the stop block 11 clamp the mounting pipe 12 tightly;
and step 3: an operator starts the pipe extruder 2, the pipe extruder 2 extrudes the pipe body 18, and the first driving shaft 20 and the first driven shaft 21 respectively drive the first traction wheel 22 on the outer side to rotate and push the pipe body 18 to move towards the inside of the first molding pipe 16;
and 4, step 4: the pipe body 18 penetrates through the heating pipe and heats the pipe body 18 through the heating pipe, the pipe body 18 is in contact with the outer side of the conical plate 10, the inner wall of the pipe body 18 moves along the outer side of the conical plate 10, so that the diameter of the pipe body 18 is enlarged, the pipe body 18 continues to move until the outer side of the pipe body 18 is in contact with the inner wall of the first molding pipe 16, and the outer diameter of the pipe body 18 is restrained through the first molding pipe 16;
and 5: the correction tube 15 and the second modeling tube 17 realize the restraint of the inner diameter and the outer diameter of the tube body 18, so that the diameter of the output tube body 18 is integrally consistent, and the tube body 18 continues to move until the tube body 18 passes through the two second traction wheels 31.
CN202110237442.8A 2021-03-04 2021-03-04 Biaxial stretching equipment for pipe processing and stretching method thereof Active CN113021855B (en)

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