CN109747133B - Production line of hole net steel belt reinforced composite pipe - Google Patents
Production line of hole net steel belt reinforced composite pipe Download PDFInfo
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- CN109747133B CN109747133B CN201910198426.5A CN201910198426A CN109747133B CN 109747133 B CN109747133 B CN 109747133B CN 201910198426 A CN201910198426 A CN 201910198426A CN 109747133 B CN109747133 B CN 109747133B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a production line of a hole net steel strip reinforced composite pipe, which comprises an unreeling machine, a rotary welding forming device, a rotary composite forming die, an extruder, a cooling box, a rotary traction device and an online synchronous cutting machine. The production line utilizes the rotary composite forming die to enable the outer sizing die to synchronously rotate along with the composite pipe in the same direction, so that the smoothness of the surface of the composite pipe is improved; meanwhile, the composite pipe is synchronously pulled in the same direction by the rotary pulling device, so that the surface of the composite pipe is further prevented from being scratched in the pulling process. The production line can realize continuous production of the mesh steel strip reinforced composite pipe on one production line, improves the production efficiency and improves the surface quality of the mesh steel strip reinforced composite pipe.
Description
Technical Field
The invention relates to a production line of a composite pipe, in particular to a production line of a mesh steel strip reinforced composite pipe.
Background
The mesh steel strip reinforced composite pipe is formed by jointly conforming a plastic pipe and a steel strip welded pipe formed by winding the mesh steel strip, however, in the current forming process of the steel strip composite pipe, argon arc welding is carried out on a rotary welding machine after the steel strip is unreeled by a steel coil machine, and the steel strip is obliquely wrapped on a welding supporting cylinder and welded into a tubular structure. However, since the welded steel strip welded pipe is rotated, the rotating pipe cannot be directly subjected to composite forming in the prior art, and the main reasons are that:
1. the surface of a composite pipe formed by the conventional composite forming device after compounding is not smooth, and rotary friction can be generated between the rotary composite pipe and a die, so that spiral marks are formed on the surface of the composite pipe, and the appearance quality of the composite pipe is greatly influenced by the marks.
2. The rotating steel belt pipe and the plastic can not be pulled by the pulling machine after being compounded in the compound forming die, the existing pulling machine can only pull the non-rotating steel belt reinforced compound pipe, friction is generated between the rotating steel belt reinforced compound pipe and the pulling machine, and therefore the surface quality of the compound pipe is seriously affected.
Therefore, the conventional method for manufacturing the steel strip composite pipe is divided into two production lines, firstly, the steel strip is welded in a rotating way to form a steel strip welded pipe, then the steel strip welded pipe is sawed into a section of pipe, then the section of pipe is conveyed to the other production line, the steel strip welded pipe is pulled on a composite forming die to be formed in a composite mode, and connecting pipes are needed between the steel strip welded pipes, so that continuous automatic composite forming can be realized. Obviously this approach is inefficient and relatively expensive.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the production line can realize continuous production of the mesh steel strip reinforced composite pipe on one production line, improves the production efficiency and improves the surface quality of the mesh steel strip reinforced composite pipe.
In order to solve the technical problems, the technical scheme of the invention is as follows: a production line of a hole net steel belt reinforced composite pipe comprises
An unreeling machine for unreeling the hole net steel strip;
a spin welding forming device for curling and welding the steel strip into a cylindrical shape, the spin welding forming device being disposed downstream of the unreeling machine;
the rotary composite forming die is arranged at the downstream of the rotary welding forming device and comprises a die body, wherein the die body is cylindrical and is provided with an axial through hole, a feeding flow channel which is convenient for plastic fluid to pass through is arranged on the die body, a forming die is detachably fixed at the other end of the die body, and a steel strip welded pipe formed by the rotary welding forming device penetrates through the through hole and passes out of the forming die; the forming die comprises an inner die and an outer die which are detachably fixed at the end part of the die body, a connecting flow channel is formed between the inner die and the outer die, one end of the connecting flow channel is connected with the feeding flow channel, the other end of the connecting flow channel extends obliquely to the center of the through hole, the outer die is provided with an extrusion forming peripheral surface at the outlet of the connecting flow channel, a core rod is concentrically arranged in the through hole, a gap between the core rod and the through hole forms an annular channel, a steel strip welded pipe which is rotationally pulled is arranged in the annular channel, the core rod supports the inner wall of the steel strip welded pipe at the upstream side of the outlet, a forming groove corresponding to the outlet is formed at the periphery of the core rod, an inner wall forming cavity is formed between the periphery of the core rod at the downstream of the forming groove and the inner wall of the steel strip welded pipe, an outer sizing die is rotationally arranged at the downstream end of the outer die, an outer wall forming cavity is formed between an inner hole of the outer sizing die and the periphery of the steel strip welded pipe, the outer wall forming cavity is communicated with the outlet, and the outer die is rotationally driven by a sizing power device;
an extruder for extruding the plastic, the extruder being in communication with the feed flow channel of the rotary composite forming die;
the cooling box is arranged at the downstream of the rotary composite forming die and is used for cooling the composite rotary composite pipe;
the rotary traction device is arranged at the downstream of the cooling box and comprises a machine base and a traction assembly rotatably arranged on the machine base, the traction assembly is driven by a rotary power device to synchronously rotate in the same direction with the composite pipe, and the traction assembly is used for traction of the composite pipe;
the on-line synchronous cutting machine is arranged at the downstream of the rotary traction device and is used for cutting off the composite pipe machine type.
As a preferred scheme, outer sizing die includes sizing die section of thick bamboo, sets up in sizing die section of thick bamboo periphery go-between, installs in the installation section of thick bamboo of go-between periphery, installation section of thick bamboo suit is provided with first bearing in the periphery of outer bush and between the two, the periphery of sizing die section of thick bamboo is fixed with the sprocket, the periphery suit of outer sizing die is equipped with the sleeve that compresses tightly, is provided with the second bearing between this sleeve that compresses tightly and the outer sizing die, and this sleeve compresses tightly outer sizing die on the outer bush.
As a preferable scheme, the end part of the die body is provided with a first step surface, the end part of the inner die is provided with a mounting screw hole, the end part of the inner die is positioned and mounted on the first step surface, the die body is provided with an axially-through mounting shaft hole, the mounting shaft holes are in one-to-one correspondence with the mounting screw holes, and a first connecting screw is mounted in the mounting shaft hole and the mounting screw hole.
As a preferable scheme, the end part of the die body is provided with a second step surface, the end part of the outer die is positioned and installed on the second step surface, the compression sleeve compresses the outer sizing die to enable the end part of the installation cylinder to be in contact with the outer die, the end part of the outer die is provided with a third step surface, and the end part of the compression sleeve is propped against the third step surface and fixedly connected with the compression sleeve, the outer die and the die body through a second connecting screw.
As a preferred embodiment, the downstream edge of the molding groove is provided in an inclined shape, and the inclined downstream edge engages with the bottom of the inner wall molding cavity.
As a preferred scheme, the traction assembly comprises a rotating seat, two ends of the rotating seat are respectively rotatably installed on a machine base through an X rotating shaft, a through hole which is convenient for a steel belt reinforced composite pipe to penetrate is formed in the X rotating shaft, a rotating power device which drives the rotating seat to rotate around the X rotating shaft is arranged between the rotating seat and the machine base, a plurality of caterpillar traction modules are arranged on the rotating seat, each caterpillar traction module is slidably installed on the rotating seat along the diameter direction of the through hole, a radial power device which drives the caterpillar traction module to radially slide is arranged between each caterpillar traction module and the rotating seat, and the caterpillar traction modules synchronously and radially slide to clamp or loosen pipes.
As a preferable scheme, the rotary power device is a synchronous rotary motor, the synchronous rotary motor is fixed on a machine base, a synchronous driving shaft is rotatably arranged on the machine base and is in transmission connection with an output shaft of the synchronous rotary motor, driving chain wheels are respectively arranged at two ends of the synchronous driving shaft, driven chain wheels are arranged on an X rotary shaft, and transmission is carried out between the driving chain wheels and the corresponding driven chain wheels through chains.
As a preferred scheme, the caterpillar traction module comprises a fixed plate extending along the length direction of the pipe, two ends of the fixed plate are slidably mounted on a rotating frame through radial sliding seats, a caterpillar driven by a traction motor to circularly run is mounted on the fixed plate, a screw rod lifter is arranged on each radial sliding seat and the rotating frame, and the radial power device comprises a radial driving motor which is in transmission connection with the screw rod lifter.
As a preferable scheme, the radial driving motor is fixed on the rotating frame, a second driving sprocket is arranged on an output shaft of the radial driving motor, one end of a driving rod of each screw lifter at one end is fixed on a primary driven sprocket, the other end of the driving rod is fixed on a secondary driven sprocket, a primary chain is arranged between the primary driven sprocket and the second driving sprocket, a secondary chain is arranged between the secondary driven sprockets, driving rods of a pair of screw lifters at two ends of the fixing plate are connected through a synchronous connecting rod, driving rods of each screw lifter at the other end are all fixed with tertiary driven sprockets, and tertiary chains are arranged between the tertiary driven sprockets.
After the technical scheme is adopted, the invention has the following effects: the method comprises the steps that after being unreeled by an unreeling machine, a hole net steel belt is welded into a steel belt welded pipe through a rotary welding forming device, then the steel belt welded pipe enters a rotary forming die, a feeding flow channel on a die body is utilized to receive plastic fluid extruded by an extruder, then the plastic fluid flows out of an outlet of a connecting flow channel of a forming port die, and as the periphery of a core rod is provided with a forming groove corresponding to the outlet, the plastic fluid flows into the forming groove from a through hole on the steel belt welded pipe, the plastic fluid of the forming groove flows into an inner wall forming cavity, finally a plastic inner wall layer is formed on the inner wall of the steel belt welded pipe, an outer sizing die is rotatably arranged at the downstream end of the outer port die, an outer wall forming cavity is formed between an inner hole of the outer sizing die and the outer periphery of the steel belt welded pipe, therefore, a part of the plastic fluid flows out of the outer wall forming cavity to form a plastic outer wall layer, a certain extrusion force is provided for simultaneously with the extrusion forming peripheral surface and the forming groove, the extrusion force of the inner wall layer and the outer wall layer can be compressed tightly, the outer sizing die is rotatably arranged, the power device drives the outer sizing die and the steel belt welded pipe is driven by the power device and the same as the rotary welding pipe, the rotary welding direction is not required to be moved to the rotary welding pipe, and the steel belt welded pipe is not required to be rotated, and the rotary welding pipe is not required to be moved, and the opposite to the rotary welding pipe is required to be rotated, and the opposite to be smooth, and the welding pipe is manufactured, and has a rotary pipe and a rotary pipe; the composite pipe after being formed is cooled and then is rotationally pulled by the rotary pulling device, the rotary pulling device can adapt to the pulling of the rotary composite pipe, and the pulling assembly and the composite pipe synchronously rotate during pulling, so that the surface of the composite pipe is smoother, scraping is avoided, and the pulled composite pipe is cut by the on-line synchronous cutting machine.
Because the outer sizing die comprises a sizing die cylinder, a connecting annular plate arranged on the periphery of the sizing die cylinder and a mounting cylinder arranged on the periphery of the connecting annular plate, the mounting cylinder is sleeved on the periphery of the outer die, a first bearing is arranged between the mounting cylinder and the outer die, a chain wheel is fixed on the periphery of the sizing die cylinder, a pressing sleeve is sleeved on the periphery of the outer sizing die, a second bearing is arranged between the pressing sleeve and the outer sizing die, the outer sizing die is pressed on the outer die by the pressing sleeve, the outer sizing die is simple to mount, and the outer sizing die rotates more smoothly through the first bearing and the second bearing.
Because the end of the die body is provided with the first step surface, the end of the inner die is provided with the mounting screw hole, the end of the inner die is positioned and mounted on the first step surface, the die body is provided with the mounting shaft hole which is penetrated axially, the mounting shaft holes are in one-to-one correspondence with the mounting screw holes, the mounting shaft holes and the mounting screw holes are internally provided with the first connecting screw, and because the end of the die body is provided with the second step surface, the end of the outer die is positioned and mounted on the second step surface, the pressing sleeve presses the end of the outer die to enable the mounting cylinder to be in contact with the outer die, the end of the outer die is provided with the third step surface, and the end of the pressing sleeve is propped against the third step surface and is fixedly connected with the pressing sleeve, the outer die and the die body through the second connecting screw. The inner die, the outer die and the outer sizing die are detachably connected, so that the inner die, the outer die and the outer sizing die with different specifications can be conveniently replaced, and composite pipes with different specifications can be produced.
And because the radial driving motor is fixed on the rotating frame, a second driving sprocket is arranged on the output shaft of the radial driving motor, one end of the driving rod of each screw lifter at one end is fixed on the first-stage driven sprocket, the other end of the driving rod of each screw lifter is fixed on the second-stage driven sprocket, a first-stage chain is arranged between the first-stage driven sprocket and the second driving sprocket, a second-stage chain is arranged between the second-stage driven sprockets, the driving rods of a pair of screw lifters at two ends of the fixing plate are connected through a synchronous connecting rod, the driving rods of each screw lifter at the other end are all fixed with three-stage driven sprockets, and three-stage chains are arranged between the three-stage driven sprockets. Therefore, all screw lifters can be synchronously driven by one radial driving motor, so that power transmission is more reasonable, and the fixing plate can slide radially in a better synchronous mode.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of the structure of an unwinder, a spin welding forming apparatus, an extruder, and a cooling box according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a rotary traction device;
FIG. 3 is a schematic view of the structure of an on-line synchronized cutter and a pipe stacker;
FIG. 4 is a schematic structural view of a rotary composite molding die;
FIG. 5 is an enlarged schematic view of FIG. 4 at I;
FIG. 6 is a schematic front view of a rotary traction;
FIG. 7 is a right side view of FIG. 6;
FIG. 8 is a cross-sectional view of FIG. 6 at A-A;
in the accompanying drawings: 1. an unreeling machine; 2. a joint device; 3. a corrective device; 4. a spin welding forming device;
5. rotating the composite forming die; 51. a die body; 52. a feed flow channel; 53. an inner die; 54. an outer die; 55. connecting the flow channels; 56. extruding and forming the peripheral surface; 57. a core rod; 571. a support cylinder portion; 58. steel strip welded pipe; 59. forming a groove; 591. a downstream trough edge; 510. an inner wall molding cavity; 511. an outer sizing die; 5111. sizing a die cylinder; 5112. connecting the annular plates; 5113. a mounting cylinder; 5114. a first bearing; 5115. a second bearing; 5116. a sprocket; 5117. compressing the sleeve; 512. an outer wall molding cavity; 513. a first step surface; 514. a second step surface; 515. a third step surface;
6. an extruder; 7. a cooling box; 8. a rotary traction device; 81. a base; 82. a rotating frame; 83. a fixing plate; an x axis of rotation; 85. a driven sprocket; 86. a drive sprocket; 87. a synchronous rotating electric machine; 88. a screw elevator; 89. a radial drive motor; 810. a second drive sprocket; 811. a primary driven sprocket; 812. a secondary driven sprocket; 813. three-stage driven chain wheels; 814. a synchronous connecting rod; 815. a traction motor; 816. a synchronous drive shaft; 817. radial strip holes; 818. a radial slide; 9. an online synchronous cutting machine; 10. and a pipe stacking rack.
Detailed Description
The present invention will be described in further detail with reference to the following examples.
As shown in FIGS. 1 to 8, a production line of a mesh steel strip reinforced composite pipe comprises
An unreeling machine 1 for unreeling the mesh steel strip; the unreeling machine 1 is a conventional machine at present, the unreeling machine 1 is also matched with a joint device 2, the unreeled steel strip of the unreeled machine 1 can be jointed on the joint device 2, and the joint device 2 is also of a conventional structure at present and is purchased from the market.
In order to make the wire mesh strip more accurately fed into the spin-welding forming apparatus 4, a straightening device 3 is provided downstream of the joint device 2, the straightening device 3 being two rows of guide rolls, between which the steel runs to achieve straightening.
A spin welding forming device 4 for curling and welding the steel strip into a cylindrical shape, the spin welding forming device 4 being disposed downstream of the unreeling machine 1; the spin welding forming apparatus 4 is also a conventional apparatus at present, and the steel strip is welded while being wound, thereby forming a steel strip welded pipe 58.
The rotary composite forming die 5 arranged at the downstream of the rotary welding forming device 4 comprises a die body 51, wherein the die body 51 is cylindrical and is provided with an axial through hole, a feeding flow channel 52 which is convenient for plastic fluid to pass through is arranged on the die body 51, a forming die is detachably fixed at the other end of the die body 51, and a steel strip welded pipe 58 formed by the rotary welding forming device 4 penetrates through the through hole and passes out of the forming die; the forming die comprises an inner die 53 and an outer die 54 which are detachably fixed at the end part of a die body 51, a connecting flow channel 55 is formed between the inner die 53 and the outer die 54, one end of the connecting flow channel 55 is connected with a feeding flow channel 52, the other end of the connecting flow channel extends obliquely to the center of a through hole, the outer die 54 is provided with an extrusion forming peripheral surface 56 at the outlet of the connecting flow channel 55, a core rod 57 is concentrically arranged in the through hole, a gap between the core rod 57 and the through hole forms an annular channel, a steel strip welded pipe 58 which is rotationally pulled is arranged in the annular channel, the core rod 57 supports the inner wall of the steel strip welded pipe 58 at the upstream side of the outlet, a forming groove 59 corresponding to the outlet is formed at the outer periphery of the core rod 57, an inner wall forming cavity 510 is formed between the outer periphery of the core rod 57 at the downstream of the forming groove 59 and the inner wall of the steel strip welded pipe 58, a sizing device is rotationally arranged at the downstream end of the outer die 54, a sizing die 511 forms a sizing outer wall 512 between the inner hole of the outer die 511 and the outer periphery of the steel strip welded pipe 58, and the sizing device is rotationally communicated with the sizing cavity 512; the outer sizing die 511 and the sizing die power device are driven by a chain wheel 5116 and a chain.
The outer sizing die 511 comprises a sizing die cylinder 51111, a connecting ring plate 5112 arranged on the periphery of the sizing die cylinder 51111, a mounting cylinder 5113 arranged on the periphery of the connecting ring plate 5112, a first bearing 5114 sleeved on the periphery of the outer die 54 and arranged between the mounting cylinder 5113 and the outer die, a chain wheel 5116 fixed on the periphery of the sizing die cylinder 51111, a pressing sleeve 5117 sleeved on the periphery of the outer sizing die 511, and a second bearing 5115 arranged between the pressing sleeve 5117 and the outer sizing die 511, wherein the outer sizing die 511 is pressed on the outer die 54 by the pressing sleeve 5117.
The end of the die body 51 is provided with a first step surface 513, the end of the inner die 53 is provided with a mounting screw hole, the end of the inner die 53 is positioned and mounted on the first step surface 513, the die body 51 is provided with an axial through mounting shaft hole, the mounting shaft holes are in one-to-one correspondence with the mounting screw holes, and the mounting shaft hole and the mounting screw hole are internally provided with first connecting screws.
The end of the die body 51 is provided with a second step surface 514, the end of the outer die 54 is positioned and mounted on the second step surface 514, the pressing sleeve 5117 presses the outer sizing die 511 to enable the end of the mounting cylinder 5113 to be in contact with the outer die 54, the end of the outer die 54 is provided with a third step surface 515, and the end of the pressing sleeve 5117 is abutted against the third step surface 515 and fixedly connects the pressing sleeve 5117, the outer die 54 and the die body 51 through a second connecting screw.
The downstream groove edge 591 of the forming groove 59 is provided in an inclined shape, and the inclined downstream groove edge 591 is engaged with the bottom of the inner wall forming cavity 510. The core rod 57 is screw-mounted with a support cylindrical portion 571 on the upstream side of the outlet, and the support cylindrical portion 571 supports the inner wall of the steel strip welded pipe 58.
An extruder 6 for extruding plastic, the extruder 6 being in communication with a feed flow channel 52 of the rotary composite molding die 5; the extruder 6 is currently conventional equipment and is commercially available as required.
The cooling box 7 is arranged at the downstream of the rotary composite forming die 5 and is used for cooling the composite rotary composite pipe; preferably, the cooling tank 7 is a water-cooled cooling tank 7.
The rotary traction device 8 is arranged at the downstream of the cooling box 7, the rotary traction device 8 comprises a machine base 81 and a traction component rotatably arranged on the machine base 81, the traction component is driven by a rotary power device to synchronously rotate in the same direction with the composite pipe, and the traction component is used for traction of the composite pipe;
and an on-line synchronous cutter 9 arranged at the downstream of the rotary traction device 8 and used for cutting off the composite pipe machine type. The in-line synchronous cutter 9 is also a current pipe cutting machine, the sawing head of which axially slides and slides at the same speed as the composite pipe when cutting feed. Downstream of the cutter is a pipe stacking rack 10 for stacking pipes.
As shown in fig. 6 to 8, the traction assembly comprises a rotating seat, two ends of the rotating seat are respectively rotatably mounted on the machine base 81 through an X rotating shaft 84, a through hole for allowing a steel strip reinforced composite pipe to penetrate through is formed in the X rotating shaft 84, a rotating power device for driving the rotating seat to rotate around the X rotating shaft 84 is arranged between the rotating seat and the machine base 81, a plurality of caterpillar traction modules are arranged on the rotating seat, each caterpillar traction module is slidably mounted on the rotating seat along the diameter direction of the through hole, a radial power device for driving the caterpillar traction module to radially slide is arranged between each caterpillar traction module and the rotating seat, and the caterpillar traction modules synchronously and radially slide to clamp or loosen pipes.
The rotary power device is a synchronous rotary motor 87, the synchronous rotary motor 87 is fixed on the base 81, a synchronous driving shaft 816 is rotatably arranged on the base 81, the synchronous driving shaft 816 is in transmission connection with an output shaft of the synchronous rotary motor 87, driving chain wheels 86 are respectively arranged at two ends of the synchronous driving shaft 816, a driven chain wheel 85 is arranged on the X rotary shaft 84, and the driving chain wheels 86 and the corresponding driven chain wheels 85 are in transmission through chains.
The caterpillar traction modules comprise fixing plates 83 extending along the length direction of the pipe, two ends of each fixing plate 83 are slidably mounted on the rotary frame 82 through radial sliding seats 818, caterpillar tracks driven by traction motors 815 to circularly run are mounted on the fixing plates 83, screw lifters 88 are arranged on each radial sliding seat 818 and the rotary frame 82, and the radial power device comprises radial driving motors 89, and the radial driving motors 89 are in transmission connection with the screw lifters 88.
The radial driving motor 89 is fixed on the rotating frame 82, a second driving sprocket 810 is mounted on an output shaft of the radial driving motor 89, one end of a driving rod of each screw lifter 88 at one end is fixed on a primary driven sprocket 811, the other end is fixed with a secondary driven sprocket 812, a primary chain is arranged between the primary driven sprocket 811 and the second driving sprocket 810, a secondary chain is arranged between the secondary driven sprockets 812, driving rods of a pair of screw lifters 88 at two ends of the fixing plate 83 are connected through a synchronous connecting rod 814, a tertiary driven sprocket 813 is fixed on the driving rod of each screw lifter 88 at the other end, and a tertiary chain is arranged between the tertiary driven sprockets 813.
The rotating frame 82 comprises a left mounting plate and a right mounting plate and a connecting rod connected between the left mounting plate and the right mounting plate, the left mounting plate and the right mounting plate are respectively and rotatably mounted on the machine base 81 through the X rotating shaft 84, radial strip holes 817 are formed in the left mounting plate and the right mounting plate, the radial sliding seat 818 is slidably mounted in the radial strip holes 817, and the radial sliding seat 818 is better restrained from sliding by the radial strip holes 817, so that the sliding direction is more accurate.
The motor, the screw nut mechanism and the chain wheel and chain transmission mechanism mentioned in the embodiment are all conventional technologies at present, the specific structure and principle and other designs of the cylinder, the motor and other transmission mechanisms are disclosed in detail in a mechanical design manual fifth edition printed by a fifth edition of Beijing, no. 4, and twenty-eight times in 2008, the structure is clear, the vacuum element, the gas circuit and the program control are disclosed in detail in a modern practical pneumatic technology 3 rd edition SMC training teaching material published by a mechanical industry publishing company in No. 08, no. 01, and the gas circuit structure in the embodiment is also the prior art, and the control and the travel switch of the motor are also described in detail in a motor driving and speed regulating book published by a chemical industry publishing company in No. 01, no. 07, no. 01, so that the circuit and the gas circuit connection are clear.
The above examples are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and adaptations of the technical solution of the present invention should and are intended to fall within the scope of the present invention as defined in the claims.
Claims (9)
1. The utility model provides a production line of hole net steel band reinforcing composite pipe which characterized in that: comprising
An unreeling machine for unreeling the hole net steel strip;
a spin welding forming device for curling and welding the steel strip into a cylindrical shape, the spin welding forming device being disposed downstream of the unreeling machine;
the rotary composite forming die is arranged at the downstream of the rotary welding forming device and comprises a die body, wherein the die body is cylindrical and is provided with an axial through hole, a feeding flow channel which is convenient for plastic fluid to pass through is arranged on the die body, a forming die is detachably fixed at the other end of the die body, and a steel strip welded pipe formed by the rotary welding forming device penetrates through the through hole and passes out of the forming die; the forming die comprises an inner die and an outer die which are detachably fixed at the end part of the die body, a connecting flow channel is formed between the inner die and the outer die, one end of the connecting flow channel is connected with the feeding flow channel, the other end of the connecting flow channel extends obliquely to the center of the through hole, the outer die is provided with an extrusion forming peripheral surface at the outlet of the connecting flow channel, a core rod is concentrically arranged in the through hole, a gap between the core rod and the through hole forms an annular channel, a steel strip welded pipe which is rotationally pulled is arranged in the annular channel, the core rod supports the inner wall of the steel strip welded pipe at the upstream side of the outlet, a forming groove corresponding to the outlet is formed at the periphery of the core rod, an inner wall forming cavity is formed between the periphery of the core rod at the downstream of the forming groove and the inner wall of the steel strip welded pipe, an outer sizing die is rotationally arranged at the downstream end of the outer die, an outer wall forming cavity is formed between an inner hole of the outer sizing die and the periphery of the steel strip welded pipe, the outer wall forming cavity is communicated with the outlet, and the outer die is rotationally driven by a sizing power device;
an extruder for extruding the plastic, the extruder being in communication with the feed flow channel of the rotary composite forming die;
the cooling box is arranged at the downstream of the rotary composite forming die and is used for cooling the composite rotary composite pipe;
the rotary traction device is arranged at the downstream of the cooling box and comprises a machine base and a traction assembly rotatably arranged on the machine base, the traction assembly is driven by a rotary power device to synchronously rotate in the same direction with the composite pipe, and the traction assembly is used for traction of the composite pipe;
the on-line synchronous cutting machine is arranged at the downstream of the rotary traction device and is used for cutting off the composite pipe machine type.
2. A wire mesh steel strip reinforced composite pipe production line as claimed in claim 1, wherein: the outer sizing die comprises a sizing die cylinder, a connecting annular plate arranged on the periphery of the sizing die cylinder, and a mounting cylinder arranged on the periphery of the connecting annular plate, wherein the mounting cylinder is sleeved on the periphery of the outer die, a first bearing is arranged between the mounting cylinder and the outer die, a chain wheel is fixed on the periphery of the sizing die cylinder, a pressing sleeve is sleeved on the periphery of the outer sizing die, a second bearing is arranged between the pressing sleeve and the outer sizing die, and the outer sizing die is pressed on the outer die by the pressing sleeve.
3. A wire mesh steel strip reinforced composite pipe production line as claimed in claim 2, wherein: the end of the die body is provided with a first step surface, the end of the inner die is provided with a mounting screw hole, the end of the inner die is positioned and mounted on the first step surface, the die body is provided with an axial through mounting shaft hole, the mounting shaft holes are in one-to-one correspondence with the mounting screw holes, and a first connecting screw is mounted in the mounting shaft hole and the mounting screw hole.
4. A wire mesh steel strip reinforced composite pipe production line as claimed in claim 3, wherein: the end of the die body is provided with a second step surface, the end of the outer die is positioned and installed on the second step surface, the compression sleeve compresses the outer sizing die to enable the end of the installation cylinder to be in contact with the outer die, the end of the outer die is provided with a third step surface, and the end of the compression sleeve is propped against the third step surface and fixedly connected with the compression sleeve, the outer die and the die body through a second connecting screw.
5. A wire mesh steel strip reinforced composite pipe production line as claimed in claim 4, wherein: the downstream groove edge of the forming groove is arranged in an inclined shape, and the downstream groove edge of the inclined shape is connected with the bottom of the inner wall forming cavity.
6. A wire mesh steel strip reinforced composite pipe production line as claimed in claim 5, wherein: the traction assembly comprises a rotary seat, two ends of the rotary seat are respectively and rotatably installed on the machine base through an X rotary shaft, a through hole which is convenient for the steel belt reinforced composite pipe to penetrate is formed in the X rotary shaft, a rotary power device which drives the rotary seat to rotate around the X rotary shaft is arranged between the rotary seat and the machine base, a plurality of caterpillar traction modules are arranged on the rotary seat, each caterpillar traction module is slidably installed on the rotary seat along the diameter direction of the through hole, a radial power device which drives the caterpillar traction module to radially slide is arranged between each caterpillar traction module and the rotary seat, and the caterpillar traction modules synchronously and radially slide to clamp or loosen pipes.
7. A wire mesh steel strip reinforced composite pipe production line as claimed in claim 6, wherein: the rotary power device is a synchronous rotary motor, the synchronous rotary motor is fixed on the machine base, a synchronous driving shaft is rotatably arranged on the machine base, the synchronous driving shaft is in transmission connection with an output shaft of the synchronous rotary motor, driving chain wheels are respectively arranged at two ends of the synchronous driving shaft, driven chain wheels are arranged on the X rotary shaft, and the driving chain wheels and the corresponding driven chain wheels are in transmission through chains.
8. A wire mesh steel strip reinforced composite pipe production line as claimed in claim 7, wherein: the caterpillar traction module comprises fixing plates extending along the length direction of the pipe, two ends of each fixing plate are slidably mounted on the rotating frame through radial sliding seats, caterpillar tracks driven by traction motors to circularly run are mounted on the fixing plates, screw rod lifters are arranged on each radial sliding seat and each rotating frame, and the radial power device comprises a radial driving motor which is in transmission connection with the screw rod lifters.
9. A wire mesh steel strip reinforced composite pipe production line as claimed in claim 8, wherein: the radial driving motor is fixed on the rotating frame, a second driving sprocket is mounted on an output shaft of the radial driving motor, one end of a driving rod of each screw lifter at one end is fixed on a primary driven sprocket, the other end of the driving rod of each screw lifter is fixed with a secondary driven sprocket, a primary chain is arranged between the primary driven sprocket and the second driving sprocket, a secondary chain is arranged between the secondary driven sprockets, driving rods of a pair of screw lifters at two ends of the fixing plate are connected through a synchronous connecting rod, three-stage driven sprockets are respectively fixed on driving rods of each screw lifter at the other end, and three-stage chains are arranged between the three-stage driven sprockets.
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| CN201910198426.5A CN109747133B (en) | 2019-03-15 | 2019-03-15 | Production line of hole net steel belt reinforced composite pipe |
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| CN201910198426.5A CN109747133B (en) | 2019-03-15 | 2019-03-15 | Production line of hole net steel belt reinforced composite pipe |
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| CN109747133B true CN109747133B (en) | 2023-08-29 |
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| CN115534263B (en) * | 2022-07-29 | 2023-10-17 | 宁波方力科技股份有限公司 | Plastic solid wall winding pipe production line and production process based on rotary die |
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