CN109648819B - Double-wall corrugated pipe production line - Google Patents

Double-wall corrugated pipe production line Download PDF

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Publication number
CN109648819B
CN109648819B CN201910028912.2A CN201910028912A CN109648819B CN 109648819 B CN109648819 B CN 109648819B CN 201910028912 A CN201910028912 A CN 201910028912A CN 109648819 B CN109648819 B CN 109648819B
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China
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double
inner layer
wall
corrugated pipe
sleeve
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CN201910028912.2A
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CN109648819A (en
Inventor
张泽敏
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WEIFANG ZHONGYUN MACHINE CO Ltd
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WEIFANG ZHONGYUN MACHINE CO Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00Tubular articles
    • B29L2023/18Pleated or corrugated hoses
    • B29L2023/186Pleated or corrugated hoses having a smooth internal wall

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  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a double-wall corrugated pipe production line, and relates to the technical field of double-wall corrugated pipe production equipment. Comprising the following steps: the extruder is used for plasticizing raw materials and conveying the plasticized raw materials to the outer-layer runner and the inner-layer runner; the sizing device of the composite machine head comprises a machine head provided with an outer layer runner and an inner layer runner and a sizing sleeve, wherein the sizing sleeve is arranged at an inner layer discharge hole of the inner layer runner and extends between two forming modules of the forming machine, a pipe forming space is arranged between the sizing sleeve and the forming modules, and the sizing sleeve is provided with an inner layer vacuum suction system and an inner layer cooling system; the forming machine comprises two forming module groups, wherein each forming module group comprises a semicircular forming module which circularly moves along an annular track, and the forming module is provided with an outer vacuum suction system and an outer cooling system. The production line realizes high-speed production of the small-specification double-wall corrugated pipe and improves the production efficiency.

Description

Double-wall corrugated pipe production line
Technical Field
The invention relates to the technical field of corrugated pipe production equipment, in particular to a double-wall corrugated pipe production line for producing small-specification double-wall corrugated pipes.
Background
The double-wall corrugated pipe is a novel pipe with an annular structure outer wall and a smooth inner wall, is generally used for outdoor drainage and municipal drainage of buildings, and has the advantages of light weight, small drainage resistance, high compressive strength, corrosion resistance, convenience in construction and the like, and the outer diameter is basically more than 110 mm. If the inner part of the pipe is used for laying wires such as cables, wires or optical cables, the purpose of the pipe is essentially different from that of the pipe used for sewage and drainage, the inner diameter of the pipe required for sewage and drainage is relatively large, the drainage efficiency can be improved, and the outer diameter of the pipe used for laying the wires is required to be small enough so as to conveniently pass through various barriers, and the pipe occupies a smaller space as much as possible.
At present, the domestic conventional double-wall corrugated pipe has the outer diameter of less than 90mm, while the domestic corrugated pipe with the outer diameter smaller than 90mm is a single-wall corrugated pipe, and has the large defects of internal sealing, water resistance, leakage resistance and the like, and the strength of the single-wall corrugated pipe is far lower than that of the double-wall corrugated pipe. However, the small-sized double-wall corrugated pipe has a small inner space of the sizing device of the machine head, has a poor cooling effect, and is difficult to realize high-speed production.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a double-wall corrugated pipe production line, which realizes high-speed production of small-specification double-wall corrugated pipes and improves production efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme:
a double-wall bellows production line comprising: the extruder is used for plasticizing raw materials and conveying the plasticized raw materials to an outer layer runner and an inner layer runner of the sizing device of the composite machine head; the sizing sleeve is arranged at the inner layer discharge hole and extends into a space between two forming modules of the forming machine, a pipe forming space is arranged between the sizing sleeve and the forming modules, the sizing sleeve is used for sizing a cylindrical blank extruded by the inner layer discharge hole to form an inner pipe wall of a double-wall corrugated pipe, and the sizing sleeve is provided with an inner suction vacuum system for adsorbing the inner pipe wall and an inner cooling system for cooling the inner pipe wall; the forming machine comprises two forming module groups, wherein each forming module group comprises a semicircular forming module which circularly moves along an annular track, each forming module is used for forming an outer pipe wall of the double-wall corrugated pipe by injection molding of a cylindrical material blank extruded from an outer discharge hole and pressing the outer pipe wall with an inner pipe wall, and each forming module is provided with an outer vacuum suction system for adsorbing the outer pipe wall and an outer cooling system for cooling the outer pipe wall.
Preferably, the handpiece has a large diameter section, a reduced diameter section and a small diameter section arranged in sequence, and the handpiece includes: the device comprises a compression end cover, a die sleeve, an outer layer spiral sleeve and an inner layer spiral sleeve, wherein the outer layer spiral sleeve is positioned in the die sleeve; the front end of the outer layer spiral sleeve is also provided with a middle sleeve positioned in the outer layer core die mounting sleeve, the front end of the middle sleeve is provided with an inner layer mouth die, an axial distance is reserved between the inner layer mouth die and the outer layer core die, the inner layer core die mounting sleeve with the front end extending out of the middle sleeve is arranged in the middle sleeve, the front end of the inner layer core die mounting sleeve is provided with an inner layer core die, an inner layer discharge hole is formed between the inner layer core die and the inner layer mouth die, and the outer surface of the inner layer spiral sleeve is provided with an inner layer spiral feed channel communicated with the inner layer discharge hole; the die sleeve is provided with an outer layer feeding hole communicated with the outer layer spiral feeding channel and an inner layer feeding hole communicated with the inner layer spiral feeding channel.
Preferably, the inner layer cooling system comprises an inner layer circulating cooling device and an inner layer cooling medium channel which is arranged on the sizing sleeve and communicated with the inner layer circulating cooling device, the sizing sleeve comprises a double-layer pipe wall, an inner spiral groove which is arranged along the extending direction of the inner layer pipe wall is arranged on the inner layer pipe wall, and the inner spiral groove and the outer layer pipe wall form the inner layer cooling medium channel; the inner-layer vacuum suction system comprises a suction device and an outer spiral groove which is arranged on the outer pipe wall and along the extending direction of the outer pipe wall, wherein the outer spiral groove and the inner pipe wall form a vacuum suction channel, and a through hole communicated with the suction device is arranged in the outer spiral groove; the outer layer cooling system comprises an outer layer circulating cooling device and an outer layer cooling medium channel which is arranged in the forming module and communicated with the outer layer circulating cooling device.
Preferably, the double-wall corrugated pipe production line further comprises a cooling device for cooling the double-wall corrugated pipe to normal temperature.
Preferably, the cooling device comprises a spray cooling device, the spray cooling device comprises a cooling box body and a water supply system, a cooling water pipe communicated with the water supply system is arranged in the cooling box body, and a plurality of spray heads for spraying water to the double-wall corrugated pipe are arranged on the cooling water pipe.
Preferably, the spray cooling device is further provided with a water removing device for removing water from the double-wall corrugated pipe cooled to normal temperature.
Preferably, the double-wall corrugated pipe production line further comprises a tractor, wherein the tractor comprises an upper conveying belt assembly and a lower conveying belt assembly which synchronously rotate, the upper conveying belt assembly comprises an upper conveying belt, the lower conveying belt assembly comprises a lower conveying belt, and one side, close to the lower conveying belt, of the upper conveying belt is used for clamping the double-wall corrugated pipe.
Preferably, the double-wall corrugated pipe production line further comprises a cutting machine, wherein the cutting machine comprises a hosting device for supporting the double-wall corrugated pipe, a clamping device for clamping the double-wall corrugated pipe and a cutting device for cutting the double-wall corrugated pipe.
Preferably, the double-wall corrugated pipe production line further comprises a stacking machine, wherein the stacking machine comprises a conveying device, a material turning device and a material discharging frame, the conveying device is used for conveying the double-wall corrugated pipe to the material turning device, and the material turning device is used for stacking the double-wall corrugated pipe to the material discharging frame.
Preferably, the double-wall corrugated pipe production line further comprises a winding machine for winding the double-wall corrugated pipe.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
according to the double-wall corrugated pipe production line provided by the invention, as the sizing sleeve is arranged at the inner layer discharge hole of the sizing device of the composite machine head and extends between the two forming modules of the forming machine, a pipe forming space is arranged between the sizing sleeve and the forming modules, raw materials are plasticized through the extruder and conveyed to the inner layer runner and the outer layer runner, a cylindrical blank extruded from the inner layer discharge hole is adsorbed on the outer wall of the sizing sleeve through the inner layer vacuum suction system of the sizing sleeve, and the sizing sleeve is used for sizing to form the inner pipe wall of the double-wall corrugated pipe; because the make-up machine includes two shaping module groups, every shaping module group includes the semi-annular shaping module of circulating operation along the annular track, the tube-shape parison that outer discharge gate extruded is adsorbed in the inner wall of two shaping modules through the outer vacuum system that absorbs of relative two shaping modules, the outer tube wall of double-walled bellows is formed through the injection molding of two shaping modules, simultaneously, the outer tube wall and the inner tube wall lamination of double-walled bellows form double-walled bellows, in whole course of working, the inner tube wall of double-walled bellows is cooled down through the inlayer cooling system of sizing cover, the outer tube wall of double-walled bellows is cooled down through outer cooling system in the shaping module, the outer tube wall of inner tube wall and outer tube wall are uninterrupted and are cooled down in succession, make double-walled bellows quick forming in the short time, the quick production of double-walled bellows has been realized, and work efficiency has been improved.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present invention.
FIG. 2 is a schematic view of the structure of the extruder of FIG. 1;
FIG. 3 is a schematic view of the composite nose sizing device of FIG. 1;
FIG. 4 is a schematic view of the sizing sleeve of FIG. 1;
FIG. 5 is a schematic view of the molding machine of FIG. 1;
FIG. 6 is a schematic diagram of the structure of the butt joint of the two molding modules in FIG. 5A;
fig. 7 is a schematic view of the structure of the cooling apparatus of fig. 1;
FIG. 8 is a schematic view of the tractor of FIG. 1;
FIG. 9 is a schematic view of the cutter of FIG. 1;
FIG. 10 is a schematic view of the stacker of FIG. 1;
FIG. 11 is a schematic view of the winder of FIG. 1;
in the figure: 1-extruder, 11-feeding device, 12-machine barrel, 13-driving device, 14-heating device, 15-screw, 2-compound machine head sizing device, A 1 -large diameter section, a 2 -diameter-reducing section, A 3 -small diameter section, 21-head, 2101-frame, 2102-hold-down end cap, 2103-die sleeve, 2104-outer layer screw sleeve, 2105-inner layer screw sleeve, 2106-outer sleeve, 2107-outer layer core mold mounting sleeve, 2108-outer layer core mold, 2109-middle sleeve, 2110-inner layer die, 2111-inner layer core mold mounting sleeve, 2112-inner layer core mold, 211-outer layer screw feed channel, 212-outer layer discharge port, 213-inner layer feed port, 214-inner layer screw feed channel, 215-inner layer discharge port, 22-sizing sleeve, 221-inner layer pipe wall, 222-outer layer pipe wall, 223-inner screw groove, 224-outer screw groove, 225-inner layer circulation cooling device, 3-forming machine, 31-forming module group, 311-forming module, 32-driving device, 33-cooling device, 4-cooling equipment, 41-cooling box, 42-water supply system, 43-cooling water pipe, 44-shower nozzle, 45-dewatering device, 5-tractor, 51-upper conveyer belt assembly, 52-lower conveyer belt assembly, 53-adjusting device, 6-cutting machine, 61-hosting device, 62-clamping device, 63-cutting device, 7-stacking machine, 71-conveying device, 72-turning device, 73-discharging frame, 74-limiting device, 8-winding machine, 81-winding device, 82-winding device, 9-double-wall corrugated pipe, 91-inner pipe wall and 92-outer pipe wall.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, the double-wall corrugated pipe production line comprises an extruder 1, a composite machine head sizing device 2, a forming machine 3, a cooling device 4, a traction machine 5, a cutting machine 6 and a stacking machine 7 or a winding machine 8 which are sequentially arranged, wherein in the embodiment, the double-wall corrugated pipe with the diameter phi more than or equal to 75 mm is preferably unloaded and stacked by the stacking machine 7, and the double-wall corrugated pipe with the diameter phi less than 75 mm is wound by the winding machine 8.
As shown in fig. 1 to 3, the extruder 1 is used for plasticizing raw materials and delivering the plasticized raw materials to an outer runner and an inner runner of the composite head sizing device 2. In this embodiment, the extruder 1 preferably includes a barrel 12 for plasticizing raw materials, a feed inlet is provided at one end of the barrel 12, a feeding device 11 is provided at the feed inlet, a discharge outlet is provided at the other end of the barrel 12, a screw 15 driven by a driving device 13 is provided in the barrel 12, a heating device 14 for heating raw materials in the barrel 12 is provided outside the barrel 12, two extruders 1 are provided in this embodiment, one of the two extruders 1 is connected with an inner layer feed inlet 213 of an inner layer runner of the composite head sizing device 2, and the other extruder 1 is connected with an outer layer feed inlet of an outer layer runner of the composite head sizing device 2.
As shown in fig. 1, fig. 3 and fig. 4 together, the sizing device 2 of the composite machine head comprises a machine head 21 provided with an outer layer runner and an inner layer runner, and a sizing sleeve 22, wherein the outer layer runner comprises an outer layer feed inlet, an outer layer spiral feed channel 211 and an outer layer discharge outlet 212 which are sequentially communicated, the inner layer runner comprises an inner layer feed inlet 213, an inner layer spiral feed channel 214 and an inner layer discharge outlet 215 which are sequentially communicated, the sizing sleeve 22 is arranged at the inner layer discharge outlet 215 and stretches into the space between two forming modules 311 of the forming machine 3, a pipe forming space is arranged between the sizing sleeve 22 and the forming modules 311, the sizing sleeve 22 is used for sizing a cylindrical blank extruded by the inner layer discharge outlet 215 to form an inner pipe wall 91 of the double-wall corrugated pipe 9, and the sizing sleeve 22 is provided with an inner layer vacuum sucking system for sucking the inner pipe wall 91 and an inner layer cooling system for cooling the inner pipe wall 91.
As shown in fig. 1 and 3 together, the nose 21 of the composite nose sizing device 2 in this embodiment has sequentially arranged large diameter sections a 1 Diameter-reducing section A 2 And minor diameter segment A 3 The machine head 21 comprises a frame 2101, a compression end cover 2102 fixedly arranged on the frame 2101, a die sleeve 2103 fixedly connected with the compression end cover 2102, an outer layer screw sleeve 2104 positioned in the die sleeve 2103 and a lower layer screw sleeve positioned on the inner side of the die sleeve 2103An inner layer screw sleeve 2105 positioned inside the outer layer screw sleeve 2104, wherein an outer sleeve 2106 is arranged at the front end of the die sleeve 2103, an outer layer core die mounting sleeve 2107 is arranged at the front end of the outer layer screw sleeve 2104, an outer layer core die 2108 is arranged at the front end of the outer layer core die mounting sleeve 2107, an outer layer discharge hole 212 is formed between the outer layer core die 2108 and the outer sleeve 2106, and an outer layer screw feed channel 211 communicated with the outer layer discharge hole 212 is arranged on the outer surface of the outer layer screw sleeve 2104; the front end of the outer layer spiral sleeve 2104 is also provided with a middle sleeve 2109 positioned in the outer layer core die mounting sleeve 2107, the front end of the middle sleeve 2109 is provided with an inner layer neck die 2110, an axial distance is reserved between the inner layer neck die 2110 and the outer layer core die 2108, the processing precision requirements on the inner layer neck die 2110 and the outer layer core die 2108 are reduced, the installation and the maintenance are convenient, and the equipment cost is reduced; an inner core die mounting sleeve 2111 with the front end extending out of the middle sleeve 2109 is arranged inside the middle sleeve 2109, an inner core die 2112 is arranged at the front end of the inner core die mounting sleeve 2111, an inner layer discharge hole 215 is formed between the inner core die 2112 and the inner layer die 2110, and an inner layer spiral feed channel 214 communicated with the inner layer discharge hole 215 is arranged on the outer surface of the inner layer spiral sleeve 2105; the die sleeve 2103 is provided with an outer feed port (not shown) in communication with the outer helical feed channel 211 and an inner feed port 213 in communication with the inner helical feed channel 214, the outer feed port and the inner feed port 213 being located on opposite sides of the die sleeve 2103, respectively.
As shown in fig. 1 and fig. 4 together, the inner layer cooling system provided on the sizing sleeve 22 in this embodiment includes an inner layer circulation cooling device 225 and an inner layer cooling medium channel provided on the sizing sleeve 22 and communicating with the inner layer circulation cooling device 225, the sizing sleeve 22 includes a double-layer pipe wall, the inner layer pipe wall 221 is provided with an inner spiral groove 223 provided along the extending direction of the inner layer pipe wall 221, and the inner spiral groove 223 and the outer layer pipe wall 222 form an inner layer cooling medium channel; the inner layer vacuum suction system comprises a suction device and an outer spiral groove 224 which is arranged on the outer layer pipe wall 222 and along the extending direction of the outer layer pipe wall 222, wherein the outer spiral groove 224 and the inner pipe wall 91 form a vacuum suction channel, and a through hole communicated with the suction device is arranged in the outer spiral groove 224.
As shown in fig. 1, 3, 4, 5 and 6, the forming machine comprises two forming module groups 31, the forming module groups 31 comprise a semi-annular forming module 311 which is driven by a driving device 32 to circularly run along an annular track, the forming module 311 is used for injection molding a cylindrical blank extruded from an outer layer discharge hole 212 to form an outer pipe wall 92 of the double-wall corrugated pipe 9 and pressing the outer pipe wall 92 with an inner pipe wall 91, and the forming module 311 is provided with an outer sucking vacuum system for sucking the outer pipe wall 92 and an outer cooling system for cooling the outer pipe wall 92. The outer layer cooling system in this embodiment includes an outer layer circulating cooling device 33 and an outer layer cooling medium channel (not shown) disposed in the molding module 311 and communicated with the outer layer circulating cooling device 33, and the outer layer vacuum suction system includes a vacuum guide rail (not shown) communicated with a suction hole (not shown) on the molding module 311, a vacuum channel (not shown) communicated with the vacuum guide rail, and a vacuum pump (not shown) communicated with the vacuum channel, and performs vacuum suction shaping on the outer pipe wall 92 through the suction hole on the molding module 311. The forming module 311 in this embodiment adopts a lightweight design, so that the moment of inertia is reduced, the production speed and efficiency are improved, and the formed double-wall corrugated pipe 9 enters the cooling device 4 for cooling.
As shown in fig. 1 and 7 together, the cooling apparatus 4 in the present embodiment includes a spray cooling device including a cooling tank 41 and a water supply system 42, a cooling water pipe 43 communicating with the water supply system 42 is provided in the cooling tank 41, and the cooling water pipe 43 is provided with a plurality of spray heads 44 for spraying water to the double-wall corrugated pipe 9. The spray cooling device in this embodiment makes the even spraying in the surface of double-walled bellows 9 after the water atomization, makes double-walled bellows 9 balanced cooling, prevents that the tubular product from appearing the deformation phenomenon because of the difference in temperature is great. The spray cooling device in this embodiment is further provided with a water removal device 45 for removing water from the double-wall corrugated pipe 9 cooled to normal temperature, and the water drops remaining on the outer surface of the double-wall corrugated pipe 9 are removed by the water removal device 45, so that the double-wall corrugated pipe 9 cooled to normal temperature and having a clean surface is synchronously pulled by the tractor 5.
As shown in fig. 1 and 8 together, the tractor 5 in this embodiment includes an upper conveyor belt assembly 51 and a lower conveyor belt assembly 52 that rotate synchronously, the upper conveyor belt assembly 51 includes an upper conveyor belt, the lower conveyor belt assembly 52 includes a lower conveyor belt, and a side of the upper conveyor belt adjacent to the lower conveyor belt is used to clamp the double-wall bellows 9. The upper conveyer belt assembly 51 in this embodiment is adjustable up and down, and in this embodiment, it is preferable that the upper conveyer belt assembly 51 can move up and down through the adjusting device 53, the adjusting device 53 includes a cylinder for driving the upper conveyer belt assembly 51 to move up and down, and the upper conveyer belt assembly 51 is driven to move up and down through the telescopic motion of the cylinder, so as to be convenient for adapt to the double-wall corrugated pipes 9 with different specifications, and the application range is wide. The double-wall corrugated pipe 9 pulled by the tractor 5 enters the cutter 6 for cutting.
As shown in fig. 1 and 9 together, the cutting machine 6 in this embodiment includes a holding device 61 for holding the double-wall corrugated tube 9, a clamping device 62 for clamping the double-wall corrugated tube 9, and a cutting device 63 for cutting the double-wall corrugated tube 9, and the double-wall corrugated tube 9 is automatically cut by the cutting machine 6: when the cutting machine 6 receives a cutting signal, the clamping device 62 clamps the double-wall corrugated pipe 9, the clamping device 62 and the cutting device 63 move forward synchronously with the double-wall corrugated pipe 9 under the drive of the longitudinal driving device, the cutting device 63 acts to cut the pipe, after the cutting is finished, the clamping device 62 is loosened to clamp and returns to the original position to prepare for the next cutting, and the cut double-wall corrugated pipe 9 reaches the stacking machine 7 or the winding machine 8 to be stored.
As shown in fig. 1 and 10 together, the stacker 7 in the present embodiment includes a conveying device 71, a turn-down device 72, and a discharge rack 73, the conveying device 71 being configured to convey the double-wall corrugated tube 9 to the turn-down device 72, and the turn-down device 72 being configured to stack the double-wall corrugated tube 9 to the discharge rack 73. When the cut double-wall corrugated pipe 9 reaches the stacker 7, after the stacker 7 receives a signal, the conveying device 71 supports the double-wall corrugated pipe 8, the double-wall corrugated pipe 8 is conveyed rapidly along the turning device 72, the double-wall corrugated pipe 9 is conveyed to stop conveying after touching the limiting device 74, after time delay, the turning device 72 acts to discharge the double-wall corrugated pipe 9, and the turning device 72 returns to the original position to prepare for the next action.
As shown in fig. 1 and 11, in this embodiment, the winding machine 8 is used for winding the double-wall corrugated pipe 9, when the double-wall corrugated pipe 9 reaches the winding machine 8, the end portion passing through the wire arrangement device 81 is clamped on the winding device 82, the winding device 82 rotates to wind the double-wall corrugated pipe 9 under the driving of the driving device, and after the winding is completed, the winding is removed, the winding is packed, and then the next winding is continued.
The specific production process of the double-wall corrugated pipe production line provided by the invention is as follows:
the extruder 1 plasticizes raw materials and conveys the plasticized raw materials to an inner layer runner and an outer layer runner, a cylindrical material blank extruded by the inner layer runner is adsorbed on an outer layer pipe wall 222 of the sizing sleeve 22 through an inner layer vacuum suction system of the sizing sleeve 22, and sizing is carried out through the sizing sleeve 22 to form an inner pipe wall 91 of the double-wall corrugated pipe 9; the cylindrical blank extruded by the outer runner is adsorbed on the inner walls of the two forming modules 311 through the outer vacuum sucking systems of the two opposite forming modules 311, the outer pipe wall 92 of the double-wall corrugated pipe 9 is formed through injection molding of the two forming modules 311, meanwhile, the outer pipe wall 92 of the double-wall corrugated pipe 9 and the inner pipe wall 91 are pressed together by the two forming modules 311 to form the double-wall corrugated pipe 9, in the whole working process, the inner pipe wall 91 of the double-wall corrugated pipe 9 is cooled through the inner cooling system of the sizing sleeve 22, the outer pipe wall 92 of the double-wall corrugated pipe 9 is cooled through the outer cooling system in the forming modules 311, and the inner pipe wall 91 and the outer pipe wall 92 are continuously and uninterruptedly cooled, so that the double-wall corrugated pipe 9 is rapidly formed in a short time; the formed double-wall corrugated pipe 9 is cooled by the cooling equipment 4 and subjected to surface dewatering, the double-wall corrugated pipe 9 cooled to normal temperature and clean in surface is synchronously pulled by the tractor 5, the double-wall corrugated pipe 9 pulled by the tractor 5 enters the cutting machine 6 to be cut, and the cut double-wall corrugated pipe 9 reaches the stacking machine 7 or the winding machine 8 to be stored.
The double-wall corrugated pipe production line provided by the invention cools and cools the double-wall corrugated pipe through the inner layer cooling system of the sizing sleeve 22 and the outer layer cooling system in the forming module 311, so that the double-wall corrugated pipe is rapidly formed, the problems of poor cooling effect and low production speed during production of small-specification double-wall corrugated pipes are solved, and the production efficiency is improved.
The present invention is not limited to the above-described specific embodiments, and various modifications may be made by those skilled in the art without performing any inventive work from the above-described concepts, and thus fall within the scope of the present invention.

Claims (8)

1. Double-walled bellows production line, its characterized in that includes:
the extruder is used for plasticizing raw materials and conveying the plasticized raw materials to an outer layer runner and an inner layer runner of the sizing device of the composite machine head;
the sizing sleeve is arranged at the inner layer discharge hole and extends into a space between two forming modules of the forming machine, a pipe forming space is arranged between the sizing sleeve and the forming modules, the sizing sleeve is used for sizing a cylindrical blank extruded by the inner layer discharge hole to form an inner pipe wall of a double-wall corrugated pipe, and the sizing sleeve is provided with an inner suction vacuum system for adsorbing the inner pipe wall and an inner cooling system for cooling the inner pipe wall;
the forming machine comprises two forming module groups, wherein each forming module group comprises a semicircular forming module which circularly operates along an annular track, the forming module is used for forming an outer pipe wall of the double-wall corrugated pipe by injection molding of a cylindrical blank extruded from an outer discharge hole and pressing the outer pipe wall with an inner pipe wall, and the forming module is provided with an outer vacuum suction system for adsorbing the outer pipe wall and an outer cooling system for cooling the outer pipe wall;
the aircraft nose has big footpath section, reducing section and the path section of setting in order, the aircraft nose includes:
the device comprises a compression end cover, a die sleeve, an outer layer spiral sleeve and an inner layer spiral sleeve, wherein the outer layer spiral sleeve is positioned in the die sleeve;
the front end of the outer layer spiral sleeve is also provided with a middle sleeve positioned in the outer layer core die mounting sleeve, the front end of the middle sleeve is provided with an inner layer mouth die, an axial distance is reserved between the inner layer mouth die and the outer layer core die, the inner layer core die mounting sleeve with the front end extending out of the middle sleeve is arranged in the middle sleeve, the front end of the inner layer core die mounting sleeve is provided with an inner layer core die, an inner layer discharge hole is formed between the inner layer core die and the inner layer mouth die, and the outer surface of the inner layer spiral sleeve is provided with an inner layer spiral feed channel communicated with the inner layer discharge hole;
the die sleeve is provided with the outer layer feeding hole communicated with the outer layer spiral feeding channel and the inner layer feeding hole communicated with the inner layer spiral feeding channel;
the inner layer cooling system comprises an inner layer circulating cooling device and an inner layer cooling medium channel which is arranged on the sizing sleeve and communicated with the inner layer circulating cooling device, the sizing sleeve comprises a double-layer pipe wall, the inner layer pipe wall is provided with an inner spiral groove which is arranged along the extending direction of the inner layer pipe wall, and the inner spiral groove and the outer layer pipe wall form the inner layer cooling medium channel; the inner-layer vacuum suction system comprises a suction device and an outer spiral groove which is arranged on the outer pipe wall and along the extending direction of the outer pipe wall, wherein the outer spiral groove and the inner pipe wall form a vacuum suction channel, and a through hole communicated with the suction device is arranged in the outer spiral groove;
the outer layer cooling system comprises an outer layer circulating cooling device and an outer layer cooling medium channel which is arranged in the forming module and communicated with the outer layer circulating cooling device.
2. The double-wall corrugated pipe production line according to claim 1, further comprising a cooling device for cooling the double-wall corrugated pipe to an ordinary temperature.
3. The double-wall corrugated pipe production line according to claim 2, wherein the cooling equipment comprises a spray cooling device, the spray cooling device comprises a cooling box body and a water supply system, a cooling water pipe communicated with the water supply system is arranged in the cooling box body, and a plurality of spray heads for spraying water to the double-wall corrugated pipe are arranged in the cooling water pipe.
4. A double-wall corrugated pipe production line according to claim 3, wherein the spray cooling device is further provided with a water removing device for removing water from the double-wall corrugated pipe cooled to normal temperature.
5. The double-wall corrugated pipe production line according to claim 1, further comprising a tractor comprising an upper conveyor belt assembly and a lower conveyor belt assembly that rotate in synchronization, the upper conveyor belt assembly comprising an upper conveyor belt and the lower conveyor belt assembly comprising a lower conveyor belt, a side of the upper conveyor belt adjacent to the lower conveyor belt being used to grip the double-wall corrugated pipe.
6. The double-wall corrugated pipe production line according to claim 1, further comprising a cutter comprising a hosting device for supporting the double-wall corrugated pipe, a clamping device for clamping the double-wall corrugated pipe, and a cutting device for cutting the double-wall corrugated pipe.
7. The double-wall corrugated pipe production line according to claim 1, further comprising a stacker comprising a conveying device for conveying the double-wall corrugated pipe to the upender, a upender for stacking the double-wall corrugated pipe to the unreeling rack, and a unreeling rack.
8. The double-wall corrugated pipe production line according to claim 1, further comprising a winder for winding up the double-wall corrugated pipe.
CN201910028912.2A 2019-01-12 2019-01-12 Double-wall corrugated pipe production line Active CN109648819B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910028912.2A CN109648819B (en) 2019-01-12 2019-01-12 Double-wall corrugated pipe production line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910028912.2A CN109648819B (en) 2019-01-12 2019-01-12 Double-wall corrugated pipe production line

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CN112372988A (en) * 2020-10-20 2021-02-19 郑文豪 HDPE double-walled bellows makes system of processing
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CN115384025B (en) * 2022-09-02 2023-06-06 马鞍山市飞达波纹管制造有限公司 Production machine head structure of gas damping double-wall corrugated pipe

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