CN111531845A

CN111531845A - Double-wall corrugated pipe production line and production process thereof

Info

Publication number: CN111531845A
Application number: CN202010491635.1A
Authority: CN
Inventors: 王颐其
Original assignee: Shaanxi Flying Pipe Technology Co ltd
Current assignee: Shaanxi Flying Pipe Technology Co ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2020-08-14

Abstract

The invention relates to a double-wall corrugated pipe production line and a production process thereof, relating to the technical field of corrugated pipe production and comprising an extruder, a corrugated pipe die, a corrugation forming device and a cooling and shaping device, wherein the cooling and shaping device comprises a hollow shell, a hollow spraying shell which is rotationally connected with the inner wall of the shell, a vacuumizing device communicated with the spraying shell, a spraying device communicated with the spraying shell and a driving assembly for driving the spraying shell to rotate forwards and backwards; during operation, raw materials are extruded into a cylindrical primary forming part after being subjected to hot melting by an extruder, the primary forming part is extruded by a corrugated pipe die and a corrugated forming device to obtain a secondary forming part, and finally the secondary forming part enters a cooling and shaping device, and a driving assembly drives a spraying device to rotate forward and backward so as to spray cooling water to the corrugated pipe. The invention has the effect of improving the cooling quality of the corrugated pipe.

Description

Double-wall corrugated pipe production line and production process thereof

Technical Field

The invention relates to the technical field of corrugated pipe production, in particular to a double-wall corrugated pipe production line and a production process thereof.

Background

The double-wall corrugated pipe is mainly used for large-scale water delivery, water supply, drainage, pollution discharge, exhaust and the like below 0.6Mpa, the inner wall of the double-wall corrugated pipe is a smooth inner wall, the outer wall of the double-wall corrugated pipe is provided with a multi-ring annular structure, the ring stiffness of the pipe is increased by the multi-ring annular structure of the outer wall of the double-wall corrugated pipe, and the resistance of the pipe to soil load is enhanced.

Chinese patent No. CN106113462A discloses a double-wall corrugated pipe production system, which comprises an extruder, a corrugated pipe mold, a corrugation forming device, a spraying device and a heat-insulating heating device; the spraying device comprises a box body with openings at two ends, a spraying device, a water spraying device, a corrugated pipe guiding device and a dewatering and cooling device; the dewatering cooling device is arranged on an opening of the box body, which is far away from the ripple forming device, the opening of the box body, which is close to the ripple forming device, is provided with a guide pipe, the spraying device, the water spraying device and the bellows guide device are arranged in the box body, the spraying device is close to the opening of the box body, which is provided with the guide pipe, the water spraying device is positioned in the middle of the box body, and the double-wall bellows entering from the guide pipe of the box body is cooled step by step through the spraying device, the water spraying device.

The above prior art solutions have the following drawbacks: the bellows need be cooled off the bellows evenly in the cooling process to guarantee the quality on bellows surface, among the above-mentioned scheme, carry out water-cooling with the mode of point spouting to the bellows through fixed atomizer, the mobility of drop of water in the box is lower, carries out local cooling to the bellows easily, leads to the quality of bellows to reduce.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a double-wall corrugated pipe production line body which has the effect of improving the cooling quality of the corrugated pipe.

The above object of the present invention is achieved by the following technical solutions:

a double-wall corrugated pipe production line comprises an extruder, a corrugated pipe die, a corrugated forming device and a cooling and shaping device, wherein the cooling and shaping device comprises a hollow shell, a hollow spraying shell rotatably connected to the inner wall of the shell, a vacuumizing device communicated with the spraying shell, a spraying device communicated with the spraying shell and a driving assembly for driving the spraying shell to rotate forwards and backwards, both ends of the shell and the spraying shell are coaxially provided with a perforation for a corrugated pipe to pass through, the driving assembly comprises an outer toothed ring fixedly connected to the peripheral wall of the spraying shell, an outer gear meshed with the outer toothed ring and rotatably connected with the shell, and a motor for driving the outer gear to rotate, and the outer toothed ring and the perforation are coaxially arranged.

By adopting the technical scheme, during operation, raw materials are subjected to hot melting through an extruder to extrude a cylindrical primary forming part, the primary forming part is shaped through a corrugated pipe die and a corrugated forming die to form a secondary forming part, and the secondary forming part is cooled and shaped through a cooling and shaping device to form a finished product; in the cooling and shaping process, the driving assembly drives the spraying shell to rotate positively and negatively, the spraying device is driven to rotate when the spraying shell rotates positively and negatively, and the spraying point of cooling water can be in a moving state along the circumferential direction of the corrugated pipe when the spraying device rotates, so that the condition that the corrugated pipe is cooled unevenly due to the fact that the spraying point is too concentrated is avoided, and the cooling quality of the corrugated pipe can be effectively improved.

The present invention in a preferred example may be further configured to: the spraying device comprises a main water pipe communicated with a water source, a plurality of atomizing spray heads arranged on the inner wall of the spraying shell, and a plurality of branch water pipes, one ends of which are communicated with the atomizing spray heads, and the other ends of which are communicated with the main water pipe, wherein each branch water pipe penetrates through the spraying shell.

By adopting the technical scheme, when the spraying device sprays, cooling water flows into each sub-water delivery pipe through the main water delivery pipe, is delivered to each atomizing nozzle through the sub-water delivery pipes and is sprayed out through the atomizing nozzles; the water distributing pipe penetrates through the spraying shell, so that the phenomenon that the temperature of cooling water is increased due to overlong residence time in the spraying shell can be avoided, and the cooling effect of the cooling water can be improved.

The present invention in a preferred example may be further configured to: each atomizer in spray the shell inner wall with the heliciform rotate to be connected, just atomizer's rotation axis with it is coaxial to perforate, spray the shell inner wall with be equipped with the direction subassembly between the atomizer, shell inner wall rigid coupling has the perforation and the one end that pass on the spray shell to stretch into the solid fixed ring that sprays in the shell, gu fixed ring rotates relatively with the perforation of shell to be connected, each atomizer with gu be equipped with the telescopic link between the fixed ring.

Through adopting above-mentioned technical scheme, atomizer is with the heliciform when spraying the shell internal rotation, existing along the removal of bellows circumference, has again along the radial removal of bellows, can further with the more even of cooling water injection to can further improve the cooling quality of bellows.

The present invention in a preferred example may be further configured to: the guiding component comprises a spiral guiding ring coiled on the inner wall of the spraying shell and a guiding block which can rotate along the spiral direction of the guiding ring, and the atomizing nozzle is fixedly connected with the guiding block.

Through adopting above-mentioned technical scheme, when the atomizer moved, for the guide block slides along the guide ring promptly, the telescopic link extension or shorten in order to play along the axial guide effect of bellows to the guide block in this in-process.

The present invention in a preferred example may be further configured to: the air interchanger comprises an air inlet fan and an air outlet fan which are respectively arranged on the shell.

Through adopting above-mentioned technical scheme, the operation in-process, air inlet fan and exhaust fan operation convert the air in the shell to spraying the shell and cooling down, avoiding spraying the high temperature of shell and leading to the cooling water to heat up, can improve the cooling efficiency to the bellows, also the water economy resource simultaneously.

The present invention in a preferred example may be further configured to: the air inlet fan and the air outlet fan are sequentially arranged along the output direction of the corrugated pipe.

Through adopting above-mentioned technical scheme, the air current flows along the output direction of bellows, and the air current that usable temperature is the lowest is to the cooling of the shell that sprays of the relative highest point of temperature, can effectively improve the cooling effect.

The present invention in a preferred example may be further configured to: the vacuumizing device comprises a vacuumizing hose communicated with the inner cavity of the spraying shell and a vacuumizing machine communicated with the vacuumizing hose.

By adopting the technical scheme, when the vacuumizing device vacuumizes the interior of the spraying shell, air in the spraying shell is pumped out by the vacuumizing machine through the vacuumizing hose; the rotation of the spraying shell can be facilitated by arranging the vacuumizing hose.

The present invention in a preferred example may be further configured to: the motor with be equipped with the speed reduction subassembly between the external gear, the speed reduction subassembly include respectively with the output shaft of motor and the coaxial rigid coupling's of external gear first gear and second gear, first gear and second gear intermeshing, just the number of teeth of first gear is less than the number of teeth of second gear.

By adopting the technical scheme, the motor drives the first gear to rotate when rotating, the first gear drives the second gear to rotate when rotating, and the second gear drives the outer gear ring to rotate when rotating; the torque output by the motor can be output to a larger torque of the outer gear after being transmitted by the speed reducing assembly through the speed reducing assembly, and the outer gear can drive the outer gear ring to rotate more smoothly.

The invention also aims to provide a production process of the double-wall corrugated pipe, which has the effect of improving the cooling quality of the corrugated pipe.

The second aim of the invention is realized by the following technical scheme:

a production process for producing corrugated tubes by using the production line body of any one of claims 1 to 7, comprising the following steps:

s1: extruding; the raw materials are extruded to obtain a cylindrical primary forming piece after being hot-melted by an extruder;

s2: molding: the primary forming piece sequentially passes through a corrugated pipe die and a corrugated forming device to obtain a secondary forming piece;

s3: cooling and shaping: the secondary formed part passes through a finished part of a cooling and shaping device;

and rotationally spraying the corrugated pipe in the cooling and shaping process.

Through adopting above-mentioned technical scheme, the raw materials are extruded for cylindric one shot forming spare after the extruder hot melt, and one shot forming spare gets the secondary forming spare through bellows mould, ripple forming device's extrusion, and in the secondary forming spare got into cooling setting device at last, cooling setting device carries out the cooling water to the bellows and sprays, and at this in-process, drive assembly drove spray set and just reverse rotation to the realization sprays the even on bellows surface, has effectively improved the cooling quality of bellows.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the driving assembly is arranged to drive the spraying device to rotate, so that the surface of the corrugated pipe can be uniformly sprayed, and the cooling quality of the corrugated pipe is improved;

2. the guide assembly and the telescopic rod are arranged to enable the atomizing nozzle to rotate spirally on the inner wall of the spraying shell, so that the surface of the corrugated pipe can be further uniformly sprayed, and the cooling quality of the corrugated pipe can be improved;

3. the spraying shell can be cooled by the air interchanger, and the cooling effect of cooling water is improved.

Drawings

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

FIG. 2 is a partial schematic view of the plane A-A of FIG. 1;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

fig. 4 is a schematic view of the structure of the guide assembly and telescoping pole of the present invention.

In the figure, 1, an extruder; 11. a bellows mold; 12. a corrugation forming device; 2. a housing; 21. perforating; 22. a rotating groove; 23. a rotating ring; 3. spraying a shell; 31. a fixing ring; 32. a telescopic rod; 321. a fixed section; 322. an active segment; 4. a drive assembly; 41. an outer ring gear; 42. an outer gear; 43. a motor; 44. a mounting seat; 45. a connecting seat; 5. a vacuum pumping device; 51. a vacuum hose is pumped; 52. a vacuum extractor; 6. a spraying device; 61. a main water conveying pipe; 62. an atomizing spray head; 63. distributing water pipes; 7. a speed reduction assembly; 71. a first gear; 72. a second gear; 8. a ventilation device; 81. an air intake fan; 82. an exhaust fan; 83. a ventilation port; 9. a guide assembly; 91. a guide ring; 92. and a guide block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example one

Referring to fig. 1, the invention discloses a double-wall corrugated pipe production line, which comprises an extruder 1, a corrugated pipe mold 11, a corrugation forming device 12 and a cooling and shaping device.

Referring to fig. 2 and 3, the cooling and shaping device includes a hollow housing 2, a hollow spraying shell 3 rotatably connected to an inner wall of the housing 2, a driving assembly 4 for driving the spraying shell 3 to rotate forward and backward, a vacuum pumping device 5 communicated with the spraying shell 3, and a spraying device 6 communicated with the spraying shell 3.

Referring to fig. 2 and 3, in the embodiment, the inner wall of the outer shell 2 is cylindrical, the inner wall and the outer wall of the spraying shell 3 are both cylindrical, through holes 21 for the corrugated pipes to pass through are coaxially formed at two ends of the outer shell 2 and the spraying shell 3, and the through holes 21 are coaxially arranged with the inner wall of the outer shell 2 and the inner wall and the outer wall of the spraying shell 3; the two end walls of the spraying shell 3 are respectively welded with a rotating ring 23 which is coaxial with the through hole 21, and the two end walls of the inner cavity of the shell 2 are respectively provided with a rotating groove 22 for the rotating ring 23 to rotate.

Referring to fig. 2 and 3, the driving assembly 4 includes an outer gear ring 41 coaxially welded to the outer wall of the shower housing 3, an outer gear 42 engaged with the outer gear ring 41 and rotatably connected to the end wall of the inner cavity of the housing 2, and a motor 43 for driving the outer gear 42 to rotate; the inner wall of the shell 2 is welded with a connecting seat 45, and the external gear 42 is rotationally connected with the connecting seat 45; a speed reduction assembly 7 is arranged between the motor 43 and the external gear 42, the speed reduction assembly 7 comprises a first gear 71 and a second gear 72 which are coaxially fixedly connected with an output shaft of the motor 43 and the external gear 42 respectively, the output shaft of the motor 43 is fixedly connected with the first gear 71 in a key connection manner, the external gear 42 is fixedly connected with the second gear 72 in a key connection manner, the first gear 71 and the second gear 72 are meshed with each other, and the number of teeth of the first gear 71 is less than that of the second gear 72; the inner wall of the shell 2 is welded with a mounting seat 44, the motor 43 is a servo motor, and the motor 43 is fixedly connected with the mounting seat 44 through screws.

Referring to fig. 2, at least one set of ventilation device 8 is disposed on the housing 2, in this embodiment, the ventilation device 8 is provided with 3 sets of ventilation devices 8, the 3 sets of ventilation devices 8 are uniformly distributed along the circumferential direction of the inner wall of the housing 2, each ventilation device 8 includes an air intake fan 81 and an air exhaust fan 82 respectively disposed on the housing 2, the air intake fans 81 and the air exhaust fans 82 are sequentially disposed along the output direction of the corrugated pipe, the circumferential wall of the housing 2 is provided with ventilation ports 83 corresponding to the air intake fans 81 and the air exhaust fans 82 one by one, and the air intake fans 81 and the air exhaust fans 82 are fixedly connected to the inner wall of the.

Referring to fig. 1 and 2, the vacuum pumping device 5 includes a vacuum hose 51 communicating with the inner cavity of the shower housing 3, and a vacuum pump 52 communicating with the vacuum hose 51, and the vacuum hose communicates with the vacuum pump 52 through the housing 2.

Referring to fig. 2, the spraying device 6 includes a main water pipe 61 communicated with a water source and passing through the housing 2, a plurality of atomizing nozzles 62 connected to the inner wall of the spraying shell 3 in a spiral rotation manner, and a plurality of sub-water pipes 63 having one end communicated with the atomizing nozzles 62 and the other end passing through the spraying shell 3 and communicated with the main water pipe 61, wherein the sub-water pipes 63 pass through a section of the spraying shell 3 and are fixedly connected with the spraying shell 3 through a sealing ring.

Referring to fig. 2 and 4, a guide assembly 9 is arranged between the inner wall of the spray shell 3 and the atomizer 62, the guide assembly 9 includes a spiral guide ring 91 wound on the inner wall of the spray shell 3 and a guide block 92 capable of spirally rotating along the guide ring 91, the spiral axis of the guide ring 91 is coaxial with the through hole 21, the guide ring 91 is welded with the inner wall of the spray shell 3, the cross section of one surface of the guide ring 91 and the guide block 92 which relatively slide is in a T shape along the direction perpendicular to the movement direction of the guide block 92, and the atomizer 62 is fixedly connected with the guide block 92 through screws.

Referring to fig. 3 and 4, fixing rings 31 penetrating through the through holes 21 of the spraying shell 3 and having one end extending into the spraying shell 3 are welded to both end walls of the inner cavity of the outer shell 2, the fixing rings 31 are coaxially and relatively rotatably connected with the through holes 21 of the spraying shell 3, and a telescopic rod 32 is arranged between each guide block 92 and the fixing ring 31; the telescopic rod 32 comprises a fixed section 321 and a movable section 322 which are respectively welded with the fixed ring 31 and the guide block 92, the fixed section 321 is arranged in a hollow way, and the movable section 322 is connected with the inner wall of the fixed section 321 in a sliding way along a radial line parallel to the axis of the through hole 21; wherein, the movable section 322 of the same telescopic rod 32 can be fixed with a plurality of guide blocks 92 correspondingly.

Example two

A production process of double-wall corrugated pipes comprises the following steps:

s1: extruding; the extruder 1 is used for extruding the raw materials after hot melting to obtain a cylindrical primary forming piece;

s2: molding: the primary formed part sequentially passes through a corrugated pipe die 11 and a corrugated forming device 12 to obtain a secondary formed part;

the corrugated pipe is sprayed in a rotating mode in the cooling and shaping process, when the corrugated pipe is cooled, the motor 43 drives the first gear 71 to rotate, the first gear 71 drives the second gear 72 to rotate, the second gear 72 drives the outer gear 42 to rotate, and the outer gear 42 drives the spraying shell 3 to rotate by driving the gear ring; when the spray shell 3 rotates, the guide block 92 slides along the spiral extending direction of the guide ring 91, so as to drive the atomizing nozzle 62 to slide, and the corrugated pipe can be uniformly cooled.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a double-walled bellows production line body, includes extruder (1), bellows mould (11), ripple forming device (12), cooling setting device, its characterized in that: the cooling and shaping device comprises a hollow shell (2), a hollow spraying shell (3) which is rotatably connected with the inner wall of the shell (2), a vacuumizing device (5) communicated with the spraying shell (3), a spraying device (6) communicated with the spraying shell (3), and a driving component (4) for driving the spraying shell (3) to rotate forwards and backwards, the two ends of the outer shell (2) and the spraying shell (3) are coaxially provided with through holes (21) for the corrugated pipe to pass through, the driving assembly (4) comprises an outer gear ring (41) fixedly connected with the peripheral wall of the spraying shell (3), an outer gear (42) which is meshed with the outer gear ring (41) and rotationally connected with the shell (2), and a motor (43) which is used for driving the outer gear (42) to rotate, wherein the outer gear ring (41) and the through hole (21) are coaxially arranged.

2. A double-walled corrugated pipe production wire body according to claim 1, wherein: the spraying device (6) comprises a main water pipe (61) communicated with a water source, a plurality of atomizing spray heads (62) arranged on the inner wall of the spraying shell (3) and a plurality of branch water pipes (63) with one ends communicated with the atomizing spray heads (62) and the other ends communicated with the main water pipe (61), and each branch water pipe (63) penetrates through the spraying shell (3).

3. A double-walled corrugated pipe production wire body according to claim 2, wherein: each atomizer (62) in spray shell (3) inner wall rotates with the heliciform and connects, just the axis of rotation of atomizer (62) with it is coaxial to perforate (21), spray shell (3) inner wall with be equipped with direction subassembly (9) between atomizer (62), shell (2) inner wall rigid coupling has to pass and sprays perforation (21) and the one end on shell (3) and stretch into and spray solid fixed ring (31) in shell (3), gu fixed ring (31) and perforation (21) relative rotation connection of spraying shell (3), each atomizer (62) with be equipped with telescopic link (32) between solid fixed ring (31).

4. A double-walled corrugated pipe production wire body according to claim 3, wherein: the guide assembly (9) comprises a spiral guide ring (91) wound on the inner wall of the spraying shell (3) and a guide block (92) capable of spirally rotating along the guide ring (91), and the atomizing nozzle (62) is fixedly connected with the guide block (92).

5. A double-walled corrugated pipe production wire body according to claim 1, wherein: be equipped with at least a set of breather (8) on shell (2), breather (8) are including locating respectively air intake fan (81) and exhaust fan (82) on shell (2).

6. A double-walled corrugated pipe production wire body according to claim 5, wherein: the air inlet fan (81) and the air outlet fan (82) are sequentially arranged along the output direction of the corrugated pipe.

7. A double-walled corrugated pipe production wire body according to claim 1, wherein: the vacuumizing device (5) comprises a vacuumizing hose (51) communicated with the inner cavity of the spraying shell (3) and a vacuumizing machine (52) communicated with the vacuumizing hose (51).

8. A double-walled corrugated pipe production wire body according to claim 1, wherein: the motor (43) with be equipped with between the external gear (42) speed reduction subassembly (7), speed reduction subassembly (7) including respectively with the output shaft of motor (43) and first gear (71) and second gear (72) of external gear (42) coaxial rigid coupling, first gear (71) and second gear (72) intermeshing, just the number of teeth of first gear (71) is less than the number of teeth of second gear (72).

9. A production process for producing corrugated tubes by using the production line body of any one of claims 1 to 7, characterized in that: the method comprises the following steps:

s1: extruding; the extruder (1) melts and extrudes the raw materials to obtain a cylindrical primary forming piece;

s2: molding: the primary formed part sequentially passes through a corrugated pipe die (11) and a corrugated forming device (12) to obtain a secondary formed part;