阅读说明：本技术 一种钢塑复合管智能熔接装置 (Intelligent welding device for steel-plastic composite pipe ) 是由 孙健 李海文 张大伟 谢中海 李涛 石磊 于 2021-09-16 设计创作，主要内容包括：本申请涉及钢塑复合管加工设备技术领域,具体公开了一种钢塑复合管智能熔接装置,包括主机和夹具,夹具通过电导线与主机电性连接；夹具包括两个相对布置的半圆环柱状的夹套；夹套上固定有电磁加热部件,电磁加热部件的内部开设有空腔,半圆环柱状空腔的内部设置有滑板和伸缩件；伸缩件受热时伸直,伸缩件冷却时弯曲；半圆环柱状空腔上设置有单向进水阀和单向出水阀,电磁加热部件的内侧壁为导体材质。本专利的目的在于解决钢塑复合管熔接完成后,自然冷却需要耗费大量的时间,导致工作效率低下的问题。(The application relates to the technical field of steel-plastic composite pipe processing equipment, and particularly discloses an intelligent welding device for a steel-plastic composite pipe, which comprises a host and a clamp, wherein the clamp is electrically connected with the host through an electric lead; the clamp comprises two semi-circular cylindrical jackets which are oppositely arranged; an electromagnetic heating component is fixed on the jacket, a cavity is formed in the electromagnetic heating component, and a sliding plate and a telescopic piece are arranged in the semicircular cylindrical cavity; the expansion piece is straightened when heated and is bent when cooled; the semi-circular cylindrical cavity is provided with a one-way water inlet valve and a one-way water outlet valve, and the inner side wall of the electromagnetic heating component is made of a conductor material. The purpose of this patent is to solve the steel and mould compound pipe butt fusion and accomplish the back, and natural cooling needs to consume a large amount of time, leads to the problem that work efficiency is low.)

1. The utility model provides a compound pipe intelligence butt fusion device is moulded to steel which characterized in that: the clamp is electrically connected with the host through an electric lead; the clamp comprises two semi-circular-ring-column-shaped jackets which are oppositely arranged, and the two jackets are matched to form a complete circular ring column; a semicircular-ring-shaped electromagnetic heating component is fixed on the inner side wall of the jacket, a transformer is arranged in the electromagnetic heating component, the transformer is connected with a metal sheet, the metal sheet is in a semicircular-ring-shaped structure, the metal sheet is arranged in an annular space in the clamp, the metal sheets in the electromagnetic heating components at two sides of the clamp can be mutually occluded to form a metal ring in a laminated structure, a semicircular-ring-shaped cavity is formed in the electromagnetic heating component, a sliding plate is connected in the semicircular-ring-shaped cavity in a sliding and sealing mode, an expansion piece is arranged in the semicircular-ring-shaped cavity, one end of the expansion piece is fixed at one end of the semicircular-ring-shaped cavity, the other end of the expansion piece is fixed on the sliding plate, and one end, fixed with the expansion piece, of the semicircular-ring-shaped cavity is communicated with the outside; the telescopic piece is straightened when heated and bent when cooled; one end of the semi-circular cylindrical cavity, which is far away from the telescopic piece, is provided with a one-way water inlet valve and a one-way water outlet valve, the one-way water inlet valve is connected with a water source through a water inlet pipe, and the one-way water outlet valve is connected with the outside through a water outlet pipe; the inner side wall of the electromagnetic heating component is made of a conductor material.

2. The intelligent welding device for steel-plastic composite pipes according to claim 1, characterized in that: the telescopic piece comprises 2-20 bimetallic strips which are sequentially connected end to end, and the bending directions of two adjacent bimetallic strips are opposite.

3. The intelligent welding device for steel-plastic composite pipes according to claim 1, characterized in that: one end of each of the two clamping sleeves is hinged, and the other ends of the two clamping sleeves are clamped.

4. The intelligent welding device for steel-plastic composite pipes according to claim 1, characterized in that: the host is provided with a display screen, the display screen is a touch screen, and the display screen is provided with a start button and a stop button.

5. The intelligent welding device for steel-plastic composite pipes according to claim 1, characterized in that: the clamp is provided with a handle.

6. The intelligent welding device for steel-plastic composite pipes according to claim 1, characterized in that: and the clamp and the host are both provided with an electric lead interface.

7. The intelligent welding device for steel-plastic composite pipes according to claim 1, characterized in that: the inner diameter of the clamp is 20-200 mm.

Technical Field

The invention relates to the technical field of steel-plastic composite pipe processing equipment, in particular to an intelligent welding device for steel-plastic composite pipes.

Background

PPR hot-melting machine, also called heat sealing machine, etc. The butt joint PPR pipe is suitable for heating butt joint PPR pipes. Simple and practical, two kinds of current adjustable control by temperature change and fixed control by temperature change. The specification is the same as the specification of the pipe. The temperature-adjustable control hot melt device can be used for other material pipes.

The traditional PPR hot melting method comprises the following steps:

1. the heating end is installed to fixed butt fusion ware, places the butt fusion ware on the frame, according to the heating die head that required tubular product specification installation corresponds to it is wrenched with interior hexagonal, generally little in the front end.

2. When the welding machine is powered on, the power supply is switched on (the power supply needs to be provided with a grounding protection wire), the green indicating lamp is turned on, the red indicating lamp is turned off, the welding machine enters an automatic control state, and the operation can be started. Note that: in the automatic temperature control state, the red light and the green light can be lighted automatically alternately, which shows that the welding machine is in a controlled state and does not influence the operation.

3. And (3) welding the pipe, vertically cutting off the pipe by using a pipe cutter, simultaneously pushing the pipe and the pipe fitting into a welding machine die head without rotating, operating according to the following table requirement, immediately taking down the pipe and the pipe fitting from the die head after reaching the heating time, rapidly and uniformly inserting the pipe and the pipe fitting to the required depth in a straight line without rotating, and forming a uniform flange at the joint.

4. And cooling, and taking down the pipeline to be welded after cooling.

Namely, the traditional PPR hot melting method adopts a hot melting socket (first hot melting and then socket) connection mode.

The steel-plastic composite pipe uses seamless steel pipe and welded steel pipe as base pipe, and its inner wall is coated with high-adhesion, anticorrosive and food-grade sanitary polyethylene powder paint or epoxy resin paint. The water-supply galvanized internal plastic-coated composite steel pipe is an upgraded product of the traditional galvanized pipe and is prepared by adopting the processes of pretreatment, preheating, internal coating, leveling and post-treatment.

The conventional PPR hot-melt machine has not been suitable for steel-plastic composite pipes, and thus, the conventional PPR hot-melt machine has been improved in the prior art.

Among the prior art, the steel-plastic composite pipe adopts the two hot melt welding technique of electromagnetic induction to be connected with the pipe fitting, and steel-plastic composite pressure pipe and the two hot melt pipe fittings of electromagnetic induction who has unique structural design with the material "socket joint earlier, the novel connected mode of back butt fusion". Compared with the traditional hot melt socket connection mode, the construction difficulty is low, the working efficiency is high, the welding quality of the melt port is good, the influence of the external environment temperature and the skill of constructors is avoided, the reliability and the consistency of connection are improved, and a large amount of labor cost and operation cost are saved.

However, the electromagnetic induction double hot-melt welding technology of the existing steel-plastic composite pipe still needs to wait for the pipeline to be cooled after the welding is finished, and the pipeline can be taken down, so that the problem of low working efficiency caused by the fact that a large amount of time is consumed for natural cooling after the pipeline is welded exists.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an intelligent welding device for a steel-plastic composite pipe, which solves the problem that after welding is finished, the steel-plastic composite pipe can be taken down after the steel-plastic composite pipe is naturally cooled, so that a large amount of time is consumed, and the working efficiency is low.

In order to solve the problems, the technical scheme adopted by the invention is as follows: the intelligent welding device for the steel-plastic composite pipe comprises a host and a clamp, wherein the clamp is electrically connected with the host through an electric lead; the clamp comprises two semi-circular-ring-column-shaped jackets which are oppositely arranged, and the two jackets are matched to form a complete circular ring column; a semicircular-ring-shaped electromagnetic heating component is fixed on the inner side wall of the jacket, a transformer is arranged in the electromagnetic heating component, the transformer is connected with a metal sheet, the metal sheet is in a semicircular-ring-shaped structure, the metal sheet is arranged in an annular space in the clamp, the metal sheets in the electromagnetic heating components at two sides of the clamp can be mutually occluded to form a metal ring in a laminated structure, a semicircular-ring-shaped cavity is formed in the electromagnetic heating component, a sliding plate is connected in the semicircular-ring-shaped cavity in a sliding and sealing mode, an expansion piece is arranged in the semicircular-ring-shaped cavity, one end of the expansion piece is fixed at one end of the semicircular-ring-shaped cavity, the other end of the expansion piece is fixed on the sliding plate, and one end, fixed with the expansion piece, of the semicircular-ring-shaped cavity is communicated with the outside; the telescopic piece is straightened when heated and bent when cooled; one end of the semi-circular cylindrical cavity, which is far away from the telescopic piece, is provided with a one-way water inlet valve and a one-way water outlet valve, the one-way water inlet valve is connected with a water source through a water inlet pipe, and the one-way water outlet valve is connected with the outside through a water outlet pipe; the inner side wall of the electromagnetic heating component is made of a conductor material.

The technical principle of the technical scheme is as follows:

the main machine is connected with the clamp through an electric lead, intelligent welding software is arranged in the main machine, and the operation of the intelligent welding software is controlled through the main machine, so that the intelligent double-heat welding of the clamp on the steel-plastic composite pipe is realized.

The specific welding principle is as follows: the power supply generates alternating current, alternating current generates an alternating magnetic field with the direction changing constantly through a coil (the coil is arranged in the electromagnetic heating component), eddy current is generated inside a conductor in the alternating magnetic field, the eddy current pushes current carriers in the conductor to move, the temperature of the conductor can be raised by the Joule effect of the eddy current, and therefore the heating effect is achieved.

After the steel-plastic composite pipe is subjected to double-heat welding, the welded steel-plastic composite pipe is kept static, after the steel-plastic composite pipe is naturally cooled, the steel-plastic composite pipe is taken down from a clamp, and then the next steel-plastic composite pipe is welded.

In the scheme, in the process that the electromagnetic heating component heats the steel-plastic composite pipe, the electromagnetic heating component heats the bimetallic strip in the same way, the bimetallic strip stretches to drive the sliding plate to slide along the inner wall of the semi-annular cylindrical cavity in the direction far away from the bimetallic strip, positive pressure is generated inside the semi-annular cylindrical cavity, the one-way water outlet valve is opened, the bimetallic strip gradually empties water inside the semi-annular cylindrical cavity, and the phenomenon that the water inside the semi-annular cylindrical cavity influences the welding effect of the steel-plastic composite pipe is avoided; after the steel-plastic composite pipe is welded, the electromagnetic heating component is powered off, the electromagnetic heating component does not heat the steel-plastic composite pipe any more, the bimetallic strip is in direct contact with the outside, the bimetallic strip is naturally cooled under the action of outside cold air, the cooling speed of the bimetallic strip is higher than that of a steel pipe inside the steel-plastic composite pipe, the sliding block is driven to slide towards the direction close to the bimetallic strip by bending in the cooling process of the bimetallic strip, negative pressure is generated inside the semi-annular cylindrical cavity, the one-way water inlet valve is opened, cold water is sucked into the semi-annular cylindrical cavity and cools the conductor plate, on one hand, the cold water cools the bimetallic strip through the conductor plate, the resetting of the bimetallic strip is accelerated, so that the inside of the semi-annular cylindrical cavity is filled with water quickly, on the other hand, the steel-plastic composite pipe is cooled through the conductor plate, and the cooling of the welded steel-plastic composite pipe is accelerated.

The beneficial effect that this scheme produced is: compared with the existing electromagnetic induction double-heat welding device, after the steel-plastic composite pipe is welded, the clamp of the existing electromagnetic induction double-heat welding device can take down the steel-plastic composite pipe after the steel-plastic composite pipe is naturally cooled, so that a large amount of time is wasted, and the production efficiency is low; in the scheme, the semicircular cylindrical cavity is formed between the electromagnetic heating component and the steel-plastic composite pipe, the bimetallic strip and the sliding plate are arranged in the semicircular cylindrical cavity, the electromagnetic heating component heats the bimetallic strip while heating the steel-plastic composite pipe, the bimetallic strip stretches to drive the sliding plate to slide along the inner wall of the semicircular cylindrical cavity in the direction far away from the bimetallic strip, the semicircular cylindrical cavity is emptied, and the phenomenon that water in the semicircular cylindrical cavity influences the welding effect of the steel-plastic composite pipe is avoided; after the welding of the steel-plastic composite pipe is completed, the electromagnetic heating component is powered off, the bimetallic strip is naturally cooled under the action of outside cold air, the bimetallic strip is bent, the sliding block is reset, cold water is sucked into the semi-circular cylindrical cavity, and the bimetallic strip and the steel-plastic composite pipe are cooled by the cold water through the conductor plate, so that the cooling of the welded steel-plastic composite pipe is accelerated, the resetting of the sliding plate is realized, and the continuous welding is realized.

Furthermore, the telescopic piece comprises 2-20 bimetallic strips which are sequentially connected end to end, and the bending directions of two adjacent bimetallic strips are opposite.

In the cooled state, the cross-section of the telescopic member is wave-shaped, and in the heated state, the cross-section of the telescopic member is fold-line-shaped, so that the telescopic member is heated and cooled to extend and contract.

Furthermore, one end of each of the two clamping sleeves is hinged, and the other end of each of the two clamping sleeves is clamped. The steel-plastic composite pipe is convenient to place and take down.

Further, a display screen is arranged on the host machine, the display screen is a touch screen, and a start button and a stop button are arranged on the display screen. Set up the display screen, conveniently observe the working parameter among the butt fusion process to convenient operation.

Further, a handle is arranged on the clamp. The clamp is convenient to hold and move due to the arrangement of the handle.

Further, the clamp and the host are both provided with an electric lead interface. The installation is convenient.

Further, the inner diameter of the clamp is 20-200 mm. The inner diameter of the clamp can be selected correspondingly according to the outer diameters of different steel-plastic composite pipes.

Drawings

Fig. 1 is a schematic structural view of a jig.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the electromagnetic heating device comprises a jacket 1, an electromagnetic heating component 2, a coil 21, a semicircular cylindrical cavity 3, a sliding plate 31, an expansion piece 32, a through hole 33, a conductor plate 4, a water inlet pipe 51, a one-way water inlet valve 52, a water outlet pipe 53 and a one-way water outlet valve 54.

The embodiment is basically as shown in the attached figure 1:

the utility model provides a compound pipe intelligence butt fusion device is moulded to steel, includes host computer and anchor clamps, is provided with the display screen on the host computer, and the display screen is the touch-sensitive screen, is provided with on the display screen and starts and stop button. Set up the display screen, conveniently observe the working parameter among the butt fusion process to convenient operation. All be provided with the electric lead interface on anchor clamps and the butt fusion host computer, host computer and anchor clamps pass through the electric lead and connect, easy to assemble. As shown in fig. 1, the inside electromagnetic heating component 2 that is fixed with of anchor clamps, the inside transformer that is provided with of electromagnetic heating component 2, the transformer is connected with the sheetmetal, the sheetmetal is half ring column structure, arrange the inside annular space of anchor clamps in the sheetmetal, but the inside sheetmetal of the electromagnetic heating component of anchor clamps both sides interlock each other and form stacked structure's metal coil 21, the host computer embeds there is intelligent butt fusion software, through the operation of host computer control intelligence butt fusion software to realize that anchor clamps intelligence carries out the double heat fusion to steel plastic composite pipe.

The specific welding principle is as follows: the steel-plastic composite pipe to be welded is inserted and placed on a clamp, the clamp clamps the part to be welded of the steel-plastic composite pipe, a power supply generates alternating current, alternating current generates an alternating magnetic field with constantly changed direction through a coil 21, eddy current is generated inside a conductor in the alternating magnetic field, the eddy current pushes current carriers in the conductor to move, the joule effect of the eddy current can enable the temperature of the conductor to rise, and therefore the heating effect is achieved.

In this embodiment, the inner diameter of the jig is 80 mm. The inner diameter of the clamp can be selected correspondingly according to the outer diameters of different steel-plastic composite pipes.

After the steel-plastic composite pipe is subjected to double-heat welding, the welded steel-plastic composite pipe is kept static, after the steel-plastic composite pipe is naturally cooled, the steel-plastic composite pipe is taken down from a clamp, and then the next steel-plastic composite pipe is welded.

Therefore, as shown in fig. 1, the clamp comprises two semi-circular cylindrical jackets 1 which are oppositely arranged, the right ends of the two jackets 1 are hinged, the left ends of the two jackets 1 are clamped, and the two jackets 1 are matched to form a complete circular cylindrical column; the steel-plastic composite pipe is convenient to place and take down. And, be provided with the handle on the anchor clamps, conveniently hold and remove anchor clamps.

Jacket 1 adopts thermal-insulated material to make, be fixed with semicircle ring column's electromagnetic heating component 2 on the inside wall of jacket 1, semicircle ring column cavity 3 has been seted up to electromagnetic heating component's inside, electromagnetic heating component 2 inside coil 21 is located and presss from both sides between cover 1 and semicircle ring column cavity 3, the inside sliding seal of semicircle ring column cavity 3 is connected with slide 31, slide 31's cross section is fan-shaped, the inside of semicircle ring column cavity 3 is provided with extensible member 32, extensible member 32 in this embodiment includes the bimetallic strip, the quantity 10 of bimetallic strip and end to end in proper order, the crooked opposite direction of two adjacent bimetallic strips, be provided with the through-hole 33 with semicircle ring column cavity 3 and external intercommunication on the left end of semicircle ring column cavity 3, the left end of extensible member 32 is fixed at the left end of semicircle ring column cavity 3, the right side of extensible member 32 is fixed on slide 31.

Bimetallic strip is a composite material composed of two or more metals or other materials having suitable properties. The bimetallic strip is also called as a thermal bimetallic strip, and because the thermal expansion coefficients of all component layers are different, when the temperature changes, the deformation of the active layer is larger than that of the passive layer, so that the whole bimetallic strip can bend towards one side of the passive layer, and the curvature of the composite material changes to generate deformation.

In this embodiment, the deformation of the bimetal is used to realize that the overall cross section of the expansion piece 32 in the cooling state has a wavy shape, and the bending directions of two adjacent bimetal pieces are opposite, so the extending directions of two adjacent bimetal pieces are also opposite, and the overall cross section of the expansion piece 32 in the heating state has a zigzag shape.

As shown in fig. 1, a one-way water inlet valve 52 and a one-way water outlet valve 54 are arranged at the right end of the semi-circular cylindrical cavity 3, the one-way water inlet valve 52 is connected with a water source through a water inlet pipe 51, and the one-way water outlet valve 54 is connected with the outside through a water outlet pipe 53; the inner wall of the electromagnetic heating member 2 is a conductive plate 4, and the conductive plate 4 in this embodiment is made of stainless steel.

In the process that the electromagnetic heating component 2 heats the steel-plastic composite pipe, the electromagnetic heating component 2 heats all the bimetallic strips in the same way, the bimetallic strips stretch to drive the sliding plate 31 to slide rightwards along the inner wall of the semicircular cylindrical cavity 3, positive pressure is generated inside the semicircular cylindrical cavity 3, the one-way water outlet valve 54 is opened, the bimetallic strips gradually empty the semicircular cylindrical cavity 3, and the phenomenon that water in the semicircular cylindrical cavity 3 affects the welding effect of the steel-plastic composite pipe is avoided; after the welding of the steel-plastic composite pipe is completed, the electromagnetic heating component 2 is powered off, the electromagnetic heating component 2 does not heat the steel-plastic composite pipe any more, the bimetallic strip is naturally cooled under the action of outside cold air, the bimetallic strip bends and drives the sliding block to slide leftwards, negative pressure is generated inside the semi-circular cylindrical cavity 3, the one-way water inlet valve 52 is opened, cold water is sucked inside the semi-circular cylindrical cavity 3 and cools the conductor plate 4, on one hand, the cold water cools the bimetallic strip through the conductor plate 4 to accelerate the resetting of the bimetallic strip, so that the inside of the semi-circular cylindrical cavity 3 is rapidly filled with water, on the other hand, the cold water cools the steel-plastic composite pipe through the conductor plate 4, the cooling of the welded steel-plastic composite pipe is accelerated, the resetting of the sliding plate 31 is realized, the water inside the semi-circular cylindrical cavity 3 is replaced each time, and the cooling effect of the water inside the semi-circular cylindrical cavity 3 is ensured, thereby realizing the continuous welding of the steel-plastic composite pipe and greatly improving the production efficiency.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.