CN111408633A - Ultra-thin metal plate welding process, composite water pipe and production equipment thereof - Google Patents

Ultra-thin metal plate welding process, composite water pipe and production equipment thereof Download PDF

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Publication number
CN111408633A
CN111408633A CN202010243318.8A CN202010243318A CN111408633A CN 111408633 A CN111408633 A CN 111408633A CN 202010243318 A CN202010243318 A CN 202010243318A CN 111408633 A CN111408633 A CN 111408633A
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China
Prior art keywords
bending
slope
metal plate
groove
boss
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CN202010243318.8A
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Chinese (zh)
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吴丽萍
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Individual
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Priority to CN202010243318.8A priority Critical patent/CN111408633A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/065—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes starting from a specific blank, e.g. tailored blank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0807—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/10—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
    • B21D5/12—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes making use of forming-rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • B29C45/14221—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure by tools, e.g. cutting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14598—Coating tubular articles
    • B29C45/14622—Lining the inner or outer surface of tubular articles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
    • F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/06—Tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • B29C2045/14237—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The invention discloses an ultrathin metal plate welding process, a composite water pipe and production equipment thereof, wherein a first bending roller and a second bending roller are arranged before pipe making processing, and the left side edge and the right side edge of an ultrathin metal plate are downwards turned to form bending parts by utilizing the connection and the matching between a bending groove of the first bending roller and a bending boss of the second bending roller, so that the connection area between the two sides of the ultrathin metal plate is increased by the joint of the two bending parts when the ultrathin metal plate is bent, the welding area is large when the ultrathin metal plate is bent and welded, the connection is more stable after the ultrathin metal plate is welded to form a metal pipe, and the welding quality is higher; in addition, the metal pipe is arranged in the water pipe, so that the service life of the water pipe is longer, and the water pipe can not pollute water.

Description

Ultra-thin metal plate welding process, composite water pipe and production equipment thereof
Technical Field
The invention relates to the technical field of machinery, in particular to an ultrathin metal plate welding process, a composite water pipe and production equipment thereof.
Background
Most of the existing plastic water pipes are usually manufactured directly by an injection molding machine, but after the plastic water pipes are used for a period of time, plastics pollute water quality; meanwhile, when the metal pipe is produced, the metal plate is directly turned and rolled into a tubular structure and then welded, but in the welding mode, the thickness of the metal plate is too thin, the connecting area is small after the metal plate is rolled, so that the welding area is small, the welding is not firm, and the welded metal pipe is easy to crack.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an ultrathin metal plate welding process with high welding quality, a composite water pipe and production equipment thereof.
In order to achieve the purpose, the scheme provided by the invention is as follows: a welding process of ultrathin metal plates comprises the following steps:
s1, bending the two sides of the ultrathin metal plate upwards or downwards to form bending parts with the two sides in the same direction;
s2, bending the ultrathin metal plate to enable the bending parts on the two sides to be attached;
and S3, welding the two bent parts after being attached to form the metal pipe.
A composite water pipe comprises an inner layer pipe and an outer layer pipe covering the outer surface of the inner layer pipe, wherein the outer layer pipe is a plastic pipe, and the inner layer pipe is a metal pipe formed by the ultrathin metal plate welding process.
The invention also comprises production equipment of the composite water pipe, the production equipment comprises a unreeling roller, a pipe making machine, a welding machine, a cleaning machine, a glue injection machine, an injection molding machine, a cooling tank, a traction machine and a pipe cutting machine which are sequentially arranged along the conveying direction, the unreeling roller is sleeved with an ultrathin metal plate winding belt, the pipe making machine comprises a first bending roller and a second bending roller, the first bending roller and the second bending roller are arranged in the horizontal direction, the first bending roller and the second bending roller are arranged in an up-and-down opposite mode, the outer side surface of the first bending roller is provided with a connecting groove, the connecting groove extends on the outer side surface of the first bending roller in an annular mode, the groove width of the connecting groove is equal to the width of the ultrathin metal plate, the two side edges of the bottom surface of the connecting groove are respectively provided with a bending groove extending along the length direction of the connecting groove, the outer side surface of the second bending roller, the width of the connecting boss is the same as that of the connecting groove and is used for being connected with the connecting groove vertically and matched with the connecting groove, meanwhile, bending bosses are formed on two sides of the top surface of the connecting boss respectively, and when the first bending roller and the second bending roller are connected and matched with each other, the bending groove and the bending boss are matched with each other to downwards turn over the left side edge and the right side edge of the ultrathin metal plate to form a bending part when the ultrathin metal plate passes through a gap between the bending groove and the bending boss.
The invention has the beneficial effects that: according to the invention, the first bending roller and the second bending roller are arranged before the pipe making processing, and the bending groove of the first bending roller is connected and matched with the bending boss of the second bending roller so as to fold the left side edge and the right side edge of the ultrathin metal plate downwards to form a bending part, so that the connecting area between the two sides of the ultrathin metal plate is increased by the joint of the two bending parts when the ultrathin metal plate is bent, the welding area is large when the ultrathin metal plate is bent and welded, the connection is more stable after the ultrathin metal plate is welded to form the metal pipe, and the welding quality is higher; in addition, the metal pipe is arranged in the water pipe, so that the service life of the water pipe is longer, and the water pipe can not pollute water.
Further, the welding machine is an argon arc welding machine.
Furthermore, the bending groove is composed of a first slope, a bottom groove and a second slope, the first slope, the bottom groove and the second slope are sequentially connected from outside to inside and extend along the length direction of the bending groove, the first slope is inclined downwards from outside to inside, and the second slope is inclined upwards from outside to inside in an arc shape.
Furthermore, the boss of bending comprises third slope and fourth slope, third slope and fourth slope outside-in link to each other in proper order and third slope and fourth slope follow the boss length direction of bending extend, third slope outside-in straight line slope upwards set up be used for with the laminating of first slope mutually, fourth slope outside-in arc slope downwards set up be used for with the laminating of second slope mutually, wherein the intersection between third slope and the fourth slope is in be located when connecting groove is connected with the boss under the kerve. After the structure is adopted, the left side edge and the right side edge of the ultrathin metal plate can be downwards folded to form the bending part by matching with the bending groove.
Furthermore, the gap between the bending groove and the bending boss is equal to the thickness of the ultrathin metal plate.
Drawings
Fig. 1 is an overall structural view of the present invention.
Fig. 2 is a perspective view of the first and second bending rolls of the present invention.
Fig. 3 is a cross-sectional connection view of the first bending roll and the second bending roll of the present invention.
Fig. 4 is a sectional exploded view of the first and second bending rolls of the present invention.
Fig. 5 is a partially enlarged view of a portion a in fig. 4.
Fig. 6 is a structure view of the composite water pipe of the present invention.
Fig. 7 is a partial enlarged view of fig. 6 at B.
The device comprises an unwinding roller 1, a tube making machine 2, a first bending roller 21, a connecting groove 211, a bending groove 212, a first slope 2121, a bottom groove 2122, a second slope 2123, a second bending roller 22, a connecting boss 221, a bending boss 222, a third slope 2221, a fourth slope 2222, a welding machine 3, a cleaning machine 4, a glue injection machine 5, an injection molding machine 6, a cooling groove 7, a traction machine 8, a tube cutting machine 9, an outer tube a1, an inner tube a2 and a bending part a 21.
Detailed Description
The invention will be further illustrated with reference to specific examples:
referring to fig. 1 to 7, an ultra-thin metal plate welding process includes the following steps:
and S1, bending the two sides of the ultrathin metal plate upwards or downwards to form bending parts a21 with the two sides in the same direction.
And S2, bending the ultrathin metal plate to make the bending parts a21 at the two sides jointed.
And S3, welding the two side bent parts a21 after the bonding to form a metal tube.
A composite water pipe comprises an inner layer pipe a2 and an outer layer pipe a1 covering the outer surface of an inner layer pipe a2, wherein the outer layer pipe a1 is a plastic pipe, and the inner layer pipe a2 is a metal pipe formed by an ultrathin metal plate welding process.
The production equipment of the composite water pipe comprises an unwinding roller 1, a pipe making machine 2, a welding machine 3, a cleaning machine 4, a glue injection machine 5, an injection molding machine 6, a cooling tank 7, a traction machine 8 and a pipe cutting machine 9 which are sequentially arranged along the conveying direction, wherein the pipe making machine 2 comprises a first bending roller 21 and a second bending roller 22, the first bending roller 21 and the second bending roller 22 are arranged in the horizontal direction, the first bending roller 21 and the second bending roller 22 are arranged in an up-down opposite mode, a connecting groove 211 is formed in the outer side surface of the first bending roller 21, the connecting groove 211 extends on the outer side surface of the first bending roller 21 in an annular mode, the groove width of the connecting groove 211 is equal to the width of an ultrathin metal plate, bending grooves 212 extending along the length direction of the connecting groove 211 are formed in two side edges of the connecting groove 211 respectively, each bending groove 212 consists of a first slope 2121, a bottom groove 2122 and a second slope 2123, and a first slope 2121, a second slope 2121, a, The bottom groove 2122 and the second slope 2123 are sequentially connected from outside to inside, the first slope 2121, the bottom groove 2122 and the second slope 2123 extend along the length direction of the bending groove 212, the first slope 2121 is arranged from outside to inside in a straight line inclined downward, and the second slope 2123 is arranged from outside to inside in an arc inclined upward; wherein, the welding machine 3 is an argon arc welding machine 3. The thickness of the ultrathin metal plate of the embodiment is less than 0.12 mm.
A connecting boss 221 is formed on the outer side surface of the second bending roller 22, the connecting boss 221 is annularly arranged, the width of the connecting boss 221 is the same as that of the connecting groove 211 and is used for being connected and matched with the connecting groove 211 up and down, meanwhile, bending bosses 222 are also formed on two side edges of the top surface of the connecting boss 221, when the first bending roller 21 is connected and matched with the second bending roller 22, the ultra-thin metal plate passes through a gap between the bending groove 212 and the bending bosses 222, the bending groove 212 is matched with the bending bosses 222 to fold the left and right sides of the ultra-thin metal plate down to form a bending part a21, wherein the bending bosses 222 are composed of a third slope 2221 and a fourth slope 2222, the third slope 2221 and the fourth slope 2222 are sequentially connected from outside to inside, the third slope 2221 and the fourth slope 2222 extend along the length direction of the bending bosses 222, the third slope 2221 is obliquely arranged from outside to inside and is used for being attached to the first slope 2121, the fourth slope 2222 is inclined downward from outside to inside in an arc shape and is configured to be attached to the second slope 2123, wherein an intersection between the third slope 2221 and the fourth slope 2222 is located right below the bottom groove 2122 when the connecting groove 211 is connected to the connecting boss 221. Wherein, the inclination angles of the first slope 2121 and the third slope 2221 are both 45 °.
In the present embodiment, the gap between the bending groove 212 and the bending boss 222 is equal to the thickness of the ultra-thin metal plate.
The production process of the composite water pipe comprises the following steps:
s1, controlling the unwinding roller 1 to unwind the ultrathin metal plate tape, after the ultrathin metal plate enters the pipe making machine 2, firstly enabling the left side edge and the right side edge of the ultrathin metal plate to be turned downwards through a gap between the first bending roller 21 and the second bending roller 22 to form a bending part a21, then making the ultrathin metal plate into a tubular structure, and outputting the tubular structure to the welding machine 3; specifically, when the ultra-thin metal plate passes through the gap between the first bending roller 21 and the second bending roller 22, the left and right side edges of the ultra-thin metal plate are turned downwards to form a bending portion a21 through the cooperation between the bending groove 212 and the bending boss 222, then the left and right side plates of the ultra-thin metal plate are turned upwards to form a tubular structure through the pipe bending mechanism in the pipe making machine 2, and the bending portions a21 on the left and right side edges of the ultra-thin metal plate are attached tightly, so that subsequent welding can be facilitated.
S2, welding the tubular ultrathin metal plate in the step S1 by a welding machine 3 to form a metal tube, and then outputting the metal tube to a cleaning machine 4 to clean the welded metal tube; in the welding machine 3, the bent portions a21 attached to the left and right sides of the metal plate are welded to form the metal tube, so that compared with the conventional welding machine, the area of the welding position of the metal plate is large, and the welding is firm.
S3, outputting the metal pipe cleaned in the step S2 to a glue injection machine 5 for injecting glue on the outer surface of the metal pipe, and outputting to an injection molding machine 6 for injection molding on the outer surface of the metal pipe to form a water pipe; wherein injecting glue machine 5 carries out the rubberizing so that follow-up process of moulding plastics to the tubular metal resonator, and in injection molding machine 6, injection molding machine 6 forms the one deck plastic layer to the outside surface of tubular metal resonator, so can form the water pipe, compare with traditional water pipe, the water pipe of this embodiment includes the tubular metal resonator, and this tubular metal resonator is stainless steel material, make water flow from the tubular metal resonator inside when passing through the water pipe of this embodiment, can not receive plastics influence, prevent to use the water of the toxic impurity pollution through this embodiment of back plastics for a period.
And S4, outputting the water pipe formed after injection molding in the step S3 to a cooling tank 7 for cooling, and then passing through a tractor 8 and then performing pipe cutting in a pipe cutting machine 9.
The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to limit the present invention in any way. Those skilled in the art can make many changes and modifications to the disclosed embodiments, or modify equivalent embodiments to practice the disclosed embodiments, without departing from the scope of the disclosed embodiments. Therefore, equivalent variations made according to the idea of the present invention should be covered within the protection scope of the present invention without departing from the contents of the technical solution of the present invention.

Claims (7)

1. The welding process of the ultrathin metal plate is characterized by comprising the following steps of:
s1, bending the two sides of the ultrathin metal plate upwards or downwards to form bending parts (a 21) with the two sides in the same direction;
s2, bending the ultrathin metal plate to make the bending parts (a 21) at the two sides jointed;
and S3, welding the two side bending parts (a 21) after the bonding to form the metal tube.
2. A composite water pipe is characterized in that: the ultra-thin metal plate welding process comprises an inner layer pipe (a 2) and an outer layer pipe (a 1) covering the outer surface of the inner layer pipe (a 2), wherein the outer layer pipe (a 1) is a plastic pipe, and the inner layer pipe (a 2) is a metal pipe formed by the ultra-thin metal plate welding process of claim 1.
3. A production facility for a composite water pipe according to claim 2, characterized in that: the automatic pipe bending machine comprises an unreeling roller (1) which is sequentially arranged along a conveying direction and is sleeved with an ultrathin metal plate winding belt, a pipe making machine (2), a welding machine (3), a cleaning machine (4), a glue injection machine (5), an injection molding machine (6), a cooling tank (7), a traction machine (8) and a pipe cutting machine (9), wherein the pipe making machine (2) comprises a first bending roller (21) and a second bending roller (22), the first bending roller (21) and the second bending roller (22) are arranged in the horizontal direction and are oppositely arranged from top to bottom, a connecting groove (211) is formed in the outer side surface of the first bending roller (21), the connecting groove (211) extends on the outer side surface of the first bending roller (21) in an annular mode, the groove width of the connecting groove (211) is equal to the width of the ultrathin metal plate, and bending grooves (212) extending along the length direction of the connecting groove (211) are formed in two sides of the bottom surface of the connecting groove (211) respectively, the utility model discloses a bending machine, including the second bending roller (22), be formed with on the lateral surface of second bending roller (22) and connect boss (221), connect boss (221) annular setting, the width of this connection boss (221) with the width of coupling groove (211) is the same be used for with coupling groove (211) be connected the cooperation from top to bottom, simultaneously still be formed with respectively on the both sides of coupling boss (221) top surface and bend boss (222), first bending roller (21) is passed through with second bending roller (22) when being connected the cooperation ultra-thin metal sheet bend groove (212) and bend boss (222) cooperate and turn over the left and right sides limit of ultra-thin metal sheet and turn over down and form bending portion (a 21) with bending boss (222) during the clearance between bending groove (212) and the bending boss (222).
4. The production facility of a composite water pipe according to claim 3, characterized in that: the welding machine (3) is an argon arc welding machine (3).
5. The production facility of a composite water pipe according to claim 3, characterized in that: the bending groove (212) is composed of a first slope (2121), a bottom groove (2122) and a second slope (2123), the first slope (2121), the bottom groove (2122) and the second slope (2123) are sequentially connected from outside to inside and arranged, the first slope (2121), the bottom groove (2122) and the second slope (2123) extend along the length direction of the bending groove (212), the first slope (2121) is arranged from outside to inside in straight line in an inclined mode and arranged downwards, and the second slope (2123) is arranged from outside to inside in arc in an inclined mode and arranged upwards.
6. The production equipment of the composite water pipe according to claim 5, wherein: the bending boss (222) is composed of a third slope (2221) and a fourth slope (2222), the third slope (2221) and the fourth slope (2222) are sequentially connected from outside to inside and are arranged, the third slope (2221) and the fourth slope (2222) extend along the length direction of the bending boss (222), the third slope (2221) is arranged from outside to inside in a straight line inclined upward mode and is used for being attached to the first slope (2121), the fourth slope (2222) is arranged from outside to inside in an arc inclined downward mode and is used for being attached to the second slope (2123), and the intersection between the third slope (2221) and the fourth slope (2222) is located right below the bottom groove (2122) when the connecting groove (211) is connected with the connecting boss (221).
7. The production facility of a composite water pipe according to claim 3, characterized in that: and the gap between the bending groove (212) and the bending boss (222) is equal to the thickness of the ultrathin metal plate.
CN202010243318.8A 2020-03-31 2020-03-31 Ultra-thin metal plate welding process, composite water pipe and production equipment thereof Pending CN111408633A (en)

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CN110508647A (en) * 2019-10-11 2019-11-29 山东泰丰钢业有限公司 A kind of tubing shares thick molding roller pass device
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2355195Y (en) * 1998-07-26 1999-12-22 重庆山花塑料厂 Composite pipes
CN103764308A (en) * 2011-08-31 2014-04-30 日新制钢株式会社 Manufacturing method and manufacturing equipment for small diameter metal tube
CN103846306A (en) * 2012-11-28 2014-06-11 西北机器有限公司 Two-layer copper brazed steel pipe forming unit
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CN110142310A (en) * 2019-05-31 2019-08-20 常熟市盈博钢管有限公司 A kind of production technology of steel pipes with straight
CN110508647A (en) * 2019-10-11 2019-11-29 山东泰丰钢业有限公司 A kind of tubing shares thick molding roller pass device
CN211965428U (en) * 2020-03-31 2020-11-20 吴丽萍 Composite water pipe applying ultrathin metal plate welding process and production equipment thereof

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