CN113427805B

CN113427805B - Production process and production equipment of mesh steel belt composite plastic pipe

Info

Publication number: CN113427805B
Application number: CN202010207212.2A
Authority: CN
Inventors: 蒯一希; 傅海鹰; 付林; 梁涛; 廖凯
Original assignee: Sichuan Jinshi Oriental New Material Technology Co ltd
Current assignee: Sichuan Jinshi Oriental New Material Technology Co ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2022-10-14
Anticipated expiration: 2040-03-23
Also published as: CN113427805A

Abstract

The application belongs to the field of pipeline manufacturing, in particular to a production process and production equipment for a mesh steel belt composite plastic pipe, which comprises the following steps that are sequentially arranged: unreeling the mesh steel belt; trimming the mesh steel belt; forming the mesh steel strip: forming the flat and straight mesh steel belt into a tubular structure by a mesh skeleton pipe forming device; the sizing device of the mesh frame pipe forming device is used for preventing the mesh steel belt frame pipe before welding from rotating and shaking generated in production and carrying out forced roundness correction; longitudinally welding into a tube; heating; plastic compounding: respectively compounding plastics on the inner wall and the outer wall of the mesh skeleton pipe through a mesh steel belt composite plastic pipe mould to form a mesh steel belt composite plastic pipe; shaping and cooling; and (5) drawing and cutting. The whole scheme of this application has solved the mesh skeleton that exists in the compound plastic tubing production process of current mesh steel band and has welded unstability, the sizing effect is not good, interior sizing section of thick bamboo takes place to drop easily, interior sizing section of thick bamboo slides scheduling problem.

Description

Production process and production equipment of mesh steel belt composite plastic pipe

Technical Field

The application belongs to the field of pipeline manufacturing, and particularly relates to a production process and production equipment of a mesh steel belt composite plastic pipe.

Background

The meshed steel strip reinforced plastic composite pipe is a widely used product in the market, but the manufacturing equipment and the related process of the meshed steel strip reinforced plastic composite pipe are not improved in a breakthrough manner for many years, so that the yield of the meshed steel strip reinforced plastic composite pipe is not high all the time in the manufacturing process.

The prior application date is 1999-07-05, the patent number is CN99232026.7, the title is "device for manufacturing metal plate net framework reinforced composite plastic pipe", the content of which is: a device for manufacturing a metal plate mesh framework reinforced composite plastic pipe. The device comprises a frame, a forming mechanism which is arranged on the frame and enables a metal plate with an orifice to be rolled into a cylindrical framework, and comprises at least one group of forming frames and/or forming sleeves comprising at least one pair of forming wheels, at least one group of sizing mechanisms and/or sizing sleeves comprising at least one pair of sizing wheels, a welding machine, and a composite die head which comprises a die sleeve at the inlet of a plastic melt runner and enables the framework to pass through and be compounded into a plastic pipe. The patent discloses a method and a device for manufacturing a steel skeleton reinforced composite plastic pipe, but in actual production, due to design defects of a mesh skeleton forming machine, the problems that the mesh skeleton is unstable in welding, the sizing effect is poor, an inner sizing cylinder is easy to drop, the inner sizing cylinder slides and the like in the forming process of the composite plastic pipe are caused.

Disclosure of Invention

In order to solve the problems that a mesh framework is unstable in welding, the sizing effect is poor, an inner sizing cylinder is easy to fall down, the inner sizing cylinder slides and the like in the production process of the existing mesh steel belt composite plastic pipe, a production process and production equipment of the mesh steel belt composite plastic pipe are provided.

In order to achieve the purpose, the specific scheme of the application is as follows:

a production process of a mesh steel belt composite plastic pipe is characterized by comprising the following steps: the method comprises the following steps of:

unreeling the mesh steel strip: the mesh steel belt unreeling machine unreels the mesh steel belt;

trimming the mesh steel belt: the edge trimmer shears the edges on the two sides of the hole mesh steel belt on line; the initial mesh steel belt has the condition of irregular edges, or the subsequent longitudinal welding quality can be influenced by the condition of rusting after the initial mesh steel belt is placed for too long, so that the welding quality of the subsequent longitudinal welding formed pipe can be ensured by cutting the edges.

Forming a mesh steel belt: forming a flat and straight mesh steel belt into a tubular structure by using a mesh skeleton pipe forming device; the sizing device of the mesh frame pipe forming device is used for preventing the mesh steel belt frame pipe before welding from rotating and shaking during production and performing forced rounding;

longitudinally welding into a tube: longitudinally butt-welding the meshed steel strip which is in a tubular structure through a longitudinal welding device in the meshed framework pipe forming device to obtain a meshed framework pipe;

heating: heating the mesh framework pipe by a heating device in the mesh framework pipe forming device;

plastic compounding: respectively compounding plastics on the inner wall and the outer wall of the mesh skeleton pipe through a mesh steel belt composite plastic pipe mould to form a mesh steel belt composite plastic pipe; the hole mesh steel belt composite plastic pipe die is used for extruding plastic, so that the plastic is compounded with the hole mesh pipe skeleton pipe, and meanwhile, the position of the inner sizing barrel is supported and limited in the extrusion process, and the inner sizing core rod is supported; specifically, when the mesh skeleton pipe passes through the die, the inner wall and the outer wall simultaneously extrude and compound a plastic layer in the die to respectively form a plastic inner wall and a plastic outer wall, wherein the plastic is extruded by an extruder.

Shaping and cooling: shaping and cooling the mesh steel belt composite plastic pipe obtained after compounding through a cooling shaping device; the hot-melt composite pipe immediately enters a cooling and shaping device for preliminary shaping and cooling after coming out of the die, and can be cooled into a pipe after being sprayed with water.

Traction: the hole-net steel-belt composite plastic pipe is pulled by a pipe tractor;

cutting: cutting the mesh steel belt composite plastic pipe by using a pipe cutting machine; the mesh steel belt composite plastic pipe can be cut into specific sizes according to requirements.

Furthermore, in the step of forming the meshed steel strip, the sizing device corrects the outer diameter of the meshed steel strip framework pipe and forces the meshed steel strip framework pipe to be stable, the meshed steel strip framework pipe is not fluctuated and deflected, the longitudinal welding device and the part to be welded are kept corresponding in position, the meshed steel strip framework enters from the head end of the sizing structure, the tail end of the meshed steel strip framework pipe is sent out, and forced sizing is achieved under the action of the tapered sizing structure.

Further, the following steps are also sequentially arranged after the step of unreeling the mesh steel strip:

plate shearing: shearing two end surfaces of adjacent coiled mesh steel strips before butt welding by using a plate shearing machine or shearing the steel strips; the purpose of the plate shearing is to shear and order two sides of adjacent mesh steel belts in transverse welding, so that the belt splicing welding is facilitated, and the continuous production is realized; or directly shearing the mesh steel belt to finish the work.

Butt joint of mesh steel strips: fixing the adjacent rolls of the meshed steel strips through a meshed steel strip splicing device; the mesh steel strip splicing device can be used for welding mesh steel strips of adjacent coils by using a transverse welding machine, and aims to prolong the whole length of the mesh steel strips, facilitate the processing of longer composite pipes and realize continuous production.

Feeding a mesh steel belt: pulling a tail strip of a previous coil of mesh steel strip to be unreeled into a strip storage frame through a mesh steel strip feeding device, and retreating the tail strip of the previous coil of mesh steel strip in the strip storage frame after the reel change of the next coil of mesh steel strip is finished, and butting the tail strip with the next coil of mesh steel strip; the mesh steel strip feeding device can be a feeding roller structure. The strip storage frame is used for temporarily storing steel strips when changing coils and splicing strips, and continuous production without stopping is guaranteed.

Compensation feeding: the mesh steel belt is pulled to stably feed forwards by a compensation feeding device according to the signal and dynamic speed regulation; the compensating feed device may be a feed roller arrangement.

And (3) feeding and detecting the mesh steel strip: the feeding amount of the front-end steel belt is dynamically detected and fed back to the compensation feeding device to adjust the feeding speed. Can be realized by a compensating frame structure.

The production equipment of the perforated steel belt composite plastic pipe is characterized in that: the mesh steel belt composite plastic pipe forming device comprises a sizing device for preventing mesh steel belt skeleton pipes from rotating before welding, and a sizing cylinder in the mesh steel belt composite plastic pipe mould is used for supporting and limiting.

Furthermore, the device also comprises a plate shearing machine, a mesh steel strip connecting device, a strip storage frame and a cooling sizing device.

Furthermore, the sizing device comprises an installation base frame and a sizing structure, at least one pair of clamping seats used for fixing the sizing structure is arranged on the installation base frame, the clamping seats are connected with the sizing structure, a sizing channel which is of a cylindrical structure is arranged in an inner cavity of the sizing structure, and the sizing channel is provided with a taper.

Along the production direction of the mesh steel belt framework pipe, the radius of the section of the head end of the sizing structure is larger than that of the section of the tail end of the sizing structure; the sizing structure is an integral structure or a plurality of independent split sizing structures, and the inner diameters of the split sizing structures are arranged from large to small.

Furthermore, the inner diameter of each split sizing structure is provided with a taper, and the radius of the section of the head end of the same split sizing structure is larger than that of the section of the tail end of the same split sizing structure.

A position adjusting and fixing structure for adjusting the position of the sizing structure is arranged on the clamping seat; the position adjusting and fixing structure comprises a support arranged on the installation bottom frame, strip-shaped holes distributed from top to bottom are formed in the support, adjusting bolts are arranged in the strip-shaped holes, and one end of each adjusting bolt is connected with the clamping seat.

The installation chassis is arranged on the forming table base. The adjusting and fixing structure is used for adjusting the up-down and left-right directions of the sizing structure.

Further, the mesh steel belt composite plastic pipe mold comprises a mold cavity of a cylindrical structure, a mouth mold and a core mold are arranged inside the mold cavity, a plastic runner for carrying out plastic composite on the mesh steel belt framework pipe is arranged among the mold cavity, the mouth mold and the core mold, a composite channel is formed in the middle of the mouth mold and the core mold, an inner sizing mandrel and an inner sizing cylinder connected with the inner sizing mandrel are located in the composite channel, a first fixing structure for positioning the inner sizing mandrel is arranged on the inner wall of the core mold, and a second fixing structure for positioning the core mold is arranged on the outer wall of the inner sizing mandrel.

The first fixing structure comprises at least two groups of first protruding structures, and the first protruding structures are protruding ring strips arranged on the inner wall of the core mold or a plurality of protruding points uniformly distributed along the circumference of the inner wall of the core mold. The distance between the two groups of first protruding structures does not exceed the length of the inner sizing mandrel.

The second fixing structure comprises at least one group of second protruding structures, the second protruding structures are protruding ring strips arranged on the outer wall of the inner sizing mandrel or a plurality of protruding points uniformly distributed along the circumference of the outer wall of the inner sizing mandrel, and the at least one group of second protruding structures are positioned between the two groups of first protruding structures.

Furthermore, a raised line ring of the second raised structure is provided with a welding bead notch for avoiding welding slag; or the gaps between the plurality of convex points of the second convex structure are weld bead gaps avoiding the welding slag.

The neck ring mold part is provided with neck ring mold adjusting bolts used for adjusting the plastic thickness uniformity in the composite circumferential direction along the periphery of the mold cavity, and the neck ring mold adjusting bolts are arranged in the normal direction of the circumference of the neck ring mold part; a neck ring die pressing plate is arranged in the horizontal direction of the die cavity, and one end of the neck ring die pressing plate is pressed on the neck ring die; and one side of the die cavity is provided with an opening, the opening is communicated with a runner connected with the extruder, and the outer circumferential surface of the die cavity is provided with die heating rings in sections.

Furthermore, the mesh framework pipe forming device is also provided with an inner sizing mandrel water inlet and outlet end fixed adjusting device, the inner sizing mandrel water inlet and outlet end fixed adjusting device comprises an installation plate and a fixed rod which is longitudinally arranged, and the bottom of the fixed rod is provided with a fixing structure for fixing a mandrel connecting pipe.

The junction of fixed rod is provided with the first adjustment structure that carries out the position adjustment to the dead lever position, is provided with the second adjustment structure that is used for carrying out the position adjustment to the dead lever on the mounting panel.

Furthermore, the first adjusting structure comprises a plurality of first adjusting holes arranged at the upper end of the fixing rod, the first adjusting holes are strip-shaped long holes or a plurality of independent single holes, fixing bolts are arranged in the first adjusting holes, and the first adjusting holes are arranged at the positions where the fixing rod is connected with the mounting plate.

Be provided with the support arm between mounting panel and the dead lever, the support arm both ends link to each other with mounting panel and dead lever respectively, support arm and dead lever junction are provided with the first adjustment structure of position adjustment about going on the dead lever position, are provided with the second adjustment structure that is used for carrying out position adjustment about support arm and dead lever on the mounting panel.

Further, the first adjusting structure comprises a screw rod used for adjusting the fixing rod in the left-right direction, the supporting arm comprises two supporting plates, the screw rod penetrates between the two supporting plates and is connected with the supporting arm, and one end of the fixing rod is sleeved on the screw rod and is fixedly connected with the screw rod.

The second adjusting structure comprises a plurality of second adjusting holes arranged on the mounting plate, the second adjusting holes are strip-shaped long holes or a plurality of independent single holes, fixing bolts are arranged in the second adjusting holes, and the adjusting holes are arranged at the positions where the mounting plate is connected with the forming memorial archways.

Furthermore, the bar slot holes are distributed on four corners of the mounting plate and are vertically arranged, and the upper portion or the lower portion in each bar slot hole can be provided with a fixing bolt for fixedly connecting the mounting plate with the forming memorial archway.

Further, the independent single holes at least comprise four groups, each group is arranged at four corners of the mounting plate, and each group at least comprises two vertically arranged single holes.

The fixing structure adopts a nut locking mode or an upper half ferrule and a lower half ferrule locking mode.

The application has the advantages that:

1. the whole scheme of this application has solved the mesh skeleton welding that exists in the compound plastic tubing production process of current mesh steel band unstable, the sizing effect is not good, interior sizing section of thick bamboo takes place to drop easily, interior sizing section of thick bamboo slides the scheduling problem, has realized vertical welding stability through guaranteeing sizing device to guaranteed interior sizing plug, interior sizing section of thick bamboo and do not slide, realized the firm of structure through the bearing structure of interior sizing plug and the bearing structure's of mould inner chamber cooperation.

2. According to the sizing device in the step of forming the mesh steel belt, the mesh steel belt framework pipe can be corrected in outer diameter and forced to be stable before the mesh steel belt framework pipe is welded at the welding position of a longitudinal welding machine, so that the mesh steel belt framework pipe is not fluctuated and deflected, and the welding machine is ensured to be corresponding to the position of a part to be welded. The mesh steel belt framework enters from the head end of the sizing structure, and the tail end of the sizing structure is sent out, so that the forced sizing effect is realized under the action of the taper.

3. The radius of the section of the head end of the sizing structure is larger than that of the section of the tail end of the sizing structure, namely, the whole sizing channel generates taper. The taper can ensure that the meshed steel band framework pipe is in a welding mode and is subjected to surrounding clamping force, and the meshed steel band framework pipe is prevented from rotating and moving.

4. The utility model provides a compound plastic tubing mould of mesh steel band has solved current mesh pipe and has processed when production, and interior sizing section of thick bamboo overlength causes the inhomogeneous, asymmetric problem of compound thickness of mesh steel band skeleton pipe when carrying out the plastic recombination of mesh steel band skeleton pipe. According to the sizing die, the first fixing structure is arranged on the die wall before compounding, the second fixing structure is arranged on the inner sizing core rod, and the two fixing structures are matched with each other, so that the position of the inner sizing cylinder is fixed, and the inner sizing cylinder is always kept at the central position of the die. And while providing centering support for the sizing cylinder, the contact area is reduced, and the friction force is reduced.

5. The first fixing structure and the second fixing structure are both convex ring strips or a plurality of convex points which are uniformly distributed along the circumference. The advantage is that through the mutual cooperation of a plurality of archs, realize the location of interior sizing barrel and support the restriction. The at least one group of second protruding structures are located between the two groups of first protruding structures, supporting and limiting of the inner sizing barrel are achieved by the aid of a three-point principle, the position of the mesh framework pipe can be further kept at the center of a mold when the mesh framework pipe is compounded through the mesh steel belt composite plastic pipe mold, and the wall thickness of the compounded inner layer plastic pipe is uniform. The problem that the inner sizing cylinder is prone to falling down is effectively solved by the aid of the first fixing structure and the second fixing structure which are arranged in a matched mode and the rigidity of the meshed framework pipes. The arranged convex strip rings or convex points reduce the friction resistance with the meshed steel belt framework pipes and prevent the meshed steel belt framework pipes from being stuck due to out-of-round shapes.

6. According to the inner-sizing-mandrel water inlet and outlet end fixed adjusting device, the mounting plate is mounted on the forming housing of the mesh framework pipe forming device through the second adjusting structure, the supporting arm is fixed on the mounting plate, the first adjusting structure is connected with the fixed rod, the mandrel connecting pipe is fixed by the fixing structure at the lower end of the fixed rod, the first adjusting structure is adjusted, the position of the fixed rod is adjusted, and therefore the position adjustment of the mandrel connecting pipe is achieved; the second adjusting structure is adjusted to realize the position adjustment of the supporting arm, and the position adjustment of the mandrel connecting pipe is also driven due to the mutual connection relation.

7. The mandrel connecting pipe support device can provide supporting force for the mandrel connecting pipe and realize position adjustment of the mandrel connecting pipe; this application can fixed plug connecting pipe, when preventing that the mesh pipe from compounding, front end plug axial displacement to can adjust four directions about from top to bottom the plug connecting pipe, guarantee centering of plug connecting pipe.

Drawings

Fig. 1 is a schematic diagram of the whole structure of the production equipment of the mesh steel belt composite plastic pipe.

Fig. 2 is a schematic view of an embodiment of the sizing device, in the embodiment, the sizing structure is an integrated structure.

Fig. 3 is a side view of fig. 2.

Fig. 4 is a schematic view of another embodiment of the sizing device, in the embodiment, the sizing structure is a split structure.

Fig. 5 is a schematic structural view of a composite plastic pipe mold.

Fig. 6 is an enlarged view of portion I of fig. 5.

FIG. 7 is a front view of one embodiment of an inner sizing core rod water inlet and outlet end fixing and adjusting device.

Fig. 8 is a side view of fig. 7.

FIG. 9 is a front view of another embodiment of an inner sizing mandrel water inlet and outlet end fixing and adjusting device.

Fig. 10 is a side view of fig. 9.

In the drawings: 101-mesh steel strip unreeling machine, 102-plate shearing machine, 103-mesh steel strip receiving device, 104-strip storage frame, 105-edge trimmer, 106-mesh skeleton pipe forming device, 107-longitudinal welding device, 108-mesh steel strip composite plastic pipe mold, 109-cooling sizing device, 110-traction machine, 111-cutting machine, 112-sizing device and 113-internal sizing mandrel water inlet and outlet end fixed adjusting device.

10801-die cavity, 10802-die, 10803-core die, 10804-plastic runner, 10805-composite channel, 10806-inner sizing cylinder, 10807-first fixing structure, 10808-second fixing structure, 10809-first protrusion structure, 10810-second protrusion structure, 10811-die adjusting bolt, 10812-die pressing plate, 10813-extruder runner, 10814-die heating ring, 10815-mesh steel belt skeleton tube, 10816-inner sizing mandrel and 10817-mandrel connecting tube.

11201-mounting an underframe, 11202-sizing structure, 11203-clamping seat, 11204-sizing channel, 11205-split sizing structure, 11206-position adjusting and fixing structure, 11207-support, 11208-strip-shaped hole, 11209-adjusting bolt, 11210-forming table base and 11211-welding position.

11301-mounting plate, 11302-fixing rod, 11303-fixing structure, 11304-first adjusting structure, 11305-second adjusting structure, 11306-first adjusting hole, 11307-supporting arm, 11308-second adjusting structure, 11309-screw, 11310-supporting plate, 11311-second adjusting hole, 11312-forming housing, 11313-mandrel connecting pipe.

Detailed Description

Example 1

A production process of a mesh steel belt composite plastic pipe comprises the following steps of:

unreeling the mesh steel strip: the mesh steel belt unreeling machine 101 unreels the mesh steel belt;

trimming the mesh steel belt: the edge trimmer 105 shears edges on the two sides of the meshed steel strip on line; the initial mesh steel belt has the condition of irregular edges, or the subsequent longitudinal welding quality can be influenced by the condition of rusting after the initial mesh steel belt is placed for too long, so that the welding quality of the subsequent longitudinal welding formed pipe can be ensured by cutting the edges.

Forming a mesh steel belt: forming the flat and straight mesh steel belt into a tubular structure by a mesh skeleton pipe forming device 106; the sizing device 112 of the mesh frame pipe forming device 106 is used for preventing the rotation and the shaking generated during production of the mesh steel belt frame pipe 10815 before welding and performing forced rounding;

longitudinally welding into a tube: longitudinally butt-welding the meshed steel strip which is in a tubular structure through a longitudinal welding device 107 in a meshed framework pipe forming device 106 to obtain a meshed framework pipe;

heating: heating the mesh skeleton tube by a heating device in the mesh skeleton tube forming device 106;

plastic compounding: respectively compounding plastics on the inner wall and the outer wall of the mesh skeleton pipe through a mesh steel belt composite plastic pipe mould 108 to form a mesh steel belt composite plastic pipe; the mesh steel belt composite plastic pipe die 108 is used for extruding plastic to enable the plastic to be compounded with a mesh pipe skeleton pipe, and meanwhile, the position of the inner sizing cylinder 10806 is supported and limited in the extrusion process, and a support is provided for the inner sizing core rod 10816; specifically, when the mesh skeleton pipe passes through the die, the inner wall and the outer wall are simultaneously extruded and compounded with a plastic layer in the die to respectively form a plastic inner wall and a plastic outer wall, wherein the plastic is extruded by an extruder.

Traction: the hole-net steel-belt composite plastic pipe is pulled by a pipe tractor 110;

cutting: cutting the hole mesh steel belt composite plastic pipe through a pipe cutting machine 111; the mesh steel belt composite plastic pipe can be cut into specific sizes according to requirements.

Example 2

The production equipment of the meshed steel strip composite plastic pipe comprises a meshed steel strip unreeling machine 101, an edge trimmer 105, a meshed framework pipe forming device 106, a longitudinal welding device 107, a meshed steel strip composite plastic pipe mold 108, a tractor 110 and a cutting machine 111 which are sequentially distributed, wherein the meshed framework pipe forming device 106 comprises a sizing device 112 for preventing the meshed steel strip framework pipe 10815 from rotating before welding, and a sizing cylinder 10806 is arranged in the meshed steel strip composite plastic pipe mold 108 for supporting and limiting.

The steel strip cold-drawing and hot-drawing device further comprises a plate shearing machine 102, a mesh steel strip connecting device 103, a strip storage frame 104 and a cooling sizing device 109.

The sizing device 112 comprises a mounting underframe 11201 and a sizing structure 11202, wherein at least one pair of clamping seats 11203 for fixing the sizing structure 11202 is arranged on the mounting underframe 11201, the clamping seats 11203 are connected with the sizing structure 11202, a sizing channel 11204 in a cylindrical structure is arranged in an inner cavity of the sizing structure 11202, and the sizing channel 11204 is provided with a taper.

In the production direction of the mesh steel belt framework pipe 10815, the radius of the section of the head end of the sizing structure 11202 is larger than that of the section of the tail end of the sizing structure 11202; the sizing structure 11202 is an integral structure or a plurality of independent split sizing structures 11205, and the inner diameters of the split sizing structures 11205 are arranged from large to small.

Furthermore, the inner diameter of each split sizing structure 11205 is provided with a taper, and the radius of the section of the head end of the same split sizing structure 11205 is larger than that of the section of the tail end of the same split sizing structure 11205.

A position adjusting and fixing structure 11206 for adjusting the position of the sizing structure 11202 is arranged on the clamping seat 11203; the position adjusting and fixing structure 11206 comprises a support 11207 arranged on the mounting underframe 11201, a strip-shaped hole 11208 distributed up and down is formed in the support 11207, an adjusting bolt 11209 is arranged in the strip-shaped hole 11208, and one end of the adjusting bolt 11209 is connected with the clamping seat 11203.

A mounting chassis 11201 is provided on the molding table base 11210. The adjustment and securement structure 11303 is used to adjust the orientation of the sizing structure 11202 up, down, left, or right.

The mold 108 for the mesh steel belt composite plastic pipe comprises a mold cavity 10801 of a cylindrical structure, a mouth mold 10802 and a core mold 10803 are arranged inside the mold cavity 10801, a plastic runner 10804 for plastic compounding of the mesh steel belt framework pipe 10815 is arranged among the mold cavity 10801, the mouth mold 10802 and the core mold 10803, a compound passage 10805 is formed in the middle of the mouth mold 10802 and the core mold 10803, the inner sizing core rod 10816 and the inner sizing cylinder 10806 connected with the inner sizing core rod 10816 are located in the compound passage 10805, a first fixing structure 10807 for positioning the inner sizing core rod 10816 is arranged on the inner wall of the core mold 10803, and a second fixing structure 10808 for positioning the core mold 10803 is arranged on the outer wall of the inner sizing core rod 10816.

The first securing structure 10807 includes at least two sets of first raised structures 10809, the first raised structures 10809 being raised annular strips disposed on the inner wall of the core mold 10803 or a plurality of raised points uniformly distributed about the circumference of the inner wall of the core mold 10803. The distance between the two sets of first projection structures 10809 does not exceed the length of inner sizing mandrel 10816.

The second fixture structure 10808 includes at least one set of second projection structures 10810, the second projection structures 10810 being either raised beads disposed on the outer wall of the inner sizing mandrel 10816 or a plurality of projection points evenly distributed along the circumference of the outer wall of the inner sizing mandrel 10816, and the at least one set of second projection structures 10810 being positioned between the two sets of first projection structures 10809.

Further, a bead ring of the second protrusion structure 10810 is provided with a bead gap for avoiding welding slag; or the gaps between the plurality of projections of the second projection arrangement 10810 are weld bead notches that avoid weld slag.

A die adjusting bolt 10811 for adjusting the plastic thickness uniformity in the composite circumferential direction is arranged on the die 10802 part along the periphery of the die cavity 10801, and the die adjusting bolt 10811 is arranged in the normal direction of the partial circumference of the die 10802; the die cavity 10801 is provided with a die pressing plate 10812 in the horizontal direction, and one end of the die pressing plate 10812 is pressed on the die 10802; an opening is formed in one side of the mold cavity 10801, the opening is communicated with a runner 10813 connected with the extruder, and mold heating rings 10814 are arranged on the circumferential outer surface of the mold cavity 10801 in a segmented manner.

The mesh skeleton pipe forming device 106 is further provided with an inner sizing mandrel water inlet and outlet end fixed adjusting device 113, the inner sizing mandrel water inlet and outlet end fixed adjusting device 113 comprises an installation plate 11301 and a fixing rod 11302 which is longitudinally arranged, and the bottom of the fixing rod 11302 is provided with a fixing structure 11303 for fixing a mandrel connecting pipe 10817.

The connection position of the fixing rod 11302 is provided with a first adjusting structure 11304 for adjusting the position of the fixing rod 11302, and the mounting plate 11301 is provided with a second adjusting structure 11305 for adjusting the position of the fixing rod 11302.

The first adjusting structure 11304 comprises a plurality of first adjusting holes 11306 formed in the upper end of the fixing rod 11302, each first adjusting hole 11306 is a long bar-shaped hole or a plurality of independent single holes, a fixing bolt is arranged in each first adjusting hole 11306, and each first adjusting hole 11306 is formed in the position where the fixing rod 11302 is connected with the mounting plate 11301.

Be provided with support arm 11307 between mounting panel 11301 and the dead lever 11302, support arm 11307 both ends link to each other with mounting panel 11301 and dead lever 11302 respectively, support arm 11307 and dead lever 11302 junction are provided with the first adjustment structure 11304 that carries out the adjustment of left and right position to dead lever 11302 position, are provided with the second adjustment structure 11305 that is used for carrying out the adjustment of upper and lower position to support arm 11307 and dead lever 11302 on the mounting panel 11301.

The first adjusting structure 11304 comprises a screw 11309 for adjusting the fixing rod 11302 left and right, the support arm 11307 comprises two support plates 11310, the screw 11309 passes through the two support plates 11310 and is connected with the support arm 11307, and one end of the fixing rod 11302 is sleeved on the screw 11309 and is fixedly connected with the screw 11309.

The second adjusting structure 11305 includes a plurality of second adjusting holes 11311 disposed on the mounting plate 11301, the second adjusting holes 11311 are elongated bar-shaped holes or a plurality of independent single holes, and fixing bolts are disposed in the second adjusting holes 11311, and the adjusting holes are disposed at positions where the mounting plate 11301 is connected with the forming memorial archway 11312.

The bar slot hole distributes on four angles of mounting panel 11301, and the vertical setting of bar slot hole, upper portion or the lower part in the bar slot hole all can be provided with and are used for carrying out fixed connection's fixing bolt with mounting panel 11301 and shaping memorial archway 11312.

The plurality of independent single holes comprises at least four groups, each group is arranged at four corners of the mounting plate 11301, and each group comprises at least two single holes which are vertically arranged.

The fixing structure 11303 is in a nut locking manner or an upper half ferrule and a lower half ferrule locking manner.

According to the sizing device 112 in the forming step of the mesh steel belt, before the mesh steel belt framework pipe 10815 is welded at the longitudinal welding machine welding position 11211, the mesh steel belt framework pipe 10815 can be corrected in outer diameter and forced to be stable, fluctuation and deflection of the mesh steel belt framework pipe are avoided, and the correspondence of the welding machine and the position of a part to be welded to be kept is guaranteed. The mesh steel belt framework enters from the head end of the sizing structure 11202, and the tail end of the sizing structure is sent out, so that the forced sizing effect is realized under the action of the taper. The head end section radius of the sizing structure 11202 is larger than the tail end section radius of the sizing structure 11202, namely, the sizing channel 11204 is integrally tapered. The taper can ensure that the mesh steel belt framework pipe 10815 is welded and is subjected to surrounding clamping force, and the mesh steel belt framework pipe 10815 is prevented from rotating and moving.

The mesh steel belt composite plastic pipe mold 108 solves the problems that when an existing mesh pipe is produced and processed, an inner sizing cylinder 10806 is too long, so that the mesh steel belt skeleton pipe 10815 is uneven in composite thickness and asymmetric when plastic compounding is carried out. According to the sizing die, the first fixing structure 10807 is arranged on the die wall before compounding, the second fixing structure 10808 is arranged on the inner sizing mandrel 10816, and the two fixing structures 11303 are matched with each other, so that the position of the inner sizing cylinder 10806 is fixed, and the inner sizing cylinder 10806 is always kept at the central position of the die. And while providing centering support to the sizing cylinder, the contact area is also reduced, and the friction force is reduced. The first and second

stationary structures

10807, 10808 are each a raised ring strip or a plurality of raised points distributed evenly around the circumference. The advantage is that through the mutual cooperation of a plurality of archs, realize the rigidity to internal sizing section of thick bamboo 10806. At least one set of second raised structures 10810 is located between two sets of first raised structures 10809, which utilizes the three-point principle to fix the inner sizing cylinder 10806, and can further ensure that the position thereof is maintained at the center of the mold. The problem that the inner sizing cylinder is prone to falling is effectively solved by the aid of the first fixing structure and the second fixing structure which are arranged in an adjacent matched mode and the rigidity of the meshed framework pipes. The raised line rings or raised points reduce frictional resistance with the mesh steel belt skeleton pipe 10815 and prevent the mesh steel belt skeleton pipe 10815 from being jammed due to out-of-round.

According to the inner-sizing-mandrel water inlet and outlet end fixed adjusting device 113, an installation plate 11301 is installed on a forming memorial archway 11312 of a mesh skeleton pipe forming device 106 through a second adjusting structure 11305, a support arm 11307 is fixed on the installation plate 11301, a first adjusting structure 11304 is connected with a fixing rod 11302, a fixing structure 11303 at the lower end of the fixing rod 11302 fixes a mandrel connecting pipe 10817, the first adjusting structure 11304 is adjusted, the position of the fixing rod 11302 is adjusted, and the position adjustment of the mandrel connecting pipe 10817 is realized; the second adjustment structure 11305 is adjusted to adjust the position of the support arm 11307, which also drives the adjustment of the position of the mandrel connecting pipe 10817 due to the mutual connection relationship. The mandrel connecting pipe 10817 can be provided with supporting force, and the position of the mandrel connecting pipe 10817 can be adjusted; this application can fixed core rod connecting pipe 10817, when preventing that the mesh pipe is compound, front end core rod axial displacement forward to can adjust four directions about from top to bottom to the left and right side core rod connecting pipe 10817, guarantee core rod connecting pipe 10817 between two parties.

Example 3

In this example, the combination of example 1 and example 2 was used.

Example 4

On the basis of embodiments 1, 2 and 3, referring to fig. 2 and 3, the sizing device 112 includes a mounting base frame 11201 and a sizing structure 11202, a clamping base 11203 for fixing the sizing structure 11202 is arranged on the mounting base frame 11201, the clamping base 11203 is connected with the sizing structure 11202, a sizing passage 11204 in a cylindrical structure is arranged in an inner cavity of the sizing structure 11202, and the sizing passage 11204 is provided with a taper. The mesh steel belt framework pipe 10815 enters from the head end of the sizing structure 11202, and is sent out from the tail end, and the effects of sizing, rounding and pipe stabilizing are achieved under the effect of the taper.

The sizing structure 11202 is a one-piece structure in this embodiment. The unitary construction represents the sizing structure 11202 as a separate structure, such as a separate mesh steel band skeleton tube 10815 sizing sleeve, in one configuration, the variation in the interface radius is achieved, thereby creating a taper.

The head end section radius of the sizing structure 11202 is greater than the tail end section radius of the sizing structure 11202. That is, in the sizing structure 11202, the section radius of the inlet portion of the mesh steel band skeleton tube 10815 is larger than that of the outlet portion, that is, there is a difference in the radius therebetween, so that the sizing passage 11204 is tapered as a whole. Referring to fig. 2, from right to left along the conveying direction of the mesh steel belt skeleton pipe 10815, the dimension a of the head end is larger than the dimension B of the tail end, and the dimension may be defined by a common condition such as a taper, in addition to a diameter or a radius.

The clamping seat 11203 is provided with a position adjusting and fixing structure 11206 for adjusting the position of the sizing structure 11202.

The position adjusting and fixing structure 11206 comprises a support 11207 arranged on the mounting underframe 11201, the support 11207 is provided with strip-shaped holes 11208 distributed up and down, adjusting bolts 11209 are arranged in the strip-shaped holes 11208, and one end of each adjusting bolt 11209 is connected with the clamping seat 11203. The sizing structure 11202 can be adjusted up and down on the mounting underframe 11201 by adjusting the up and down position of the bolt 11209. The sizing structure 11202 can be adjusted left and right on the mounting underframe 11201 by adjusting the tightness of the adjusting bolt 11209.

The sizing channel 11204 mesh steel skeleton tube 10815 makes frictional contact. The length and location of the contact segment is related to the location of the sizing channel 11204 in friction with the mesh steel skeleton tube 10815.

A mounting chassis 11201 is provided on the molding base 11210.

According to the method, before the mesh steel belt framework pipe 10815 is welded at the longitudinal welding machine welding position 11211, the mesh steel belt framework pipe 10815 is corrected in outer diameter and forced to be stable, fluctuation and deflection are avoided, and the correspondence of the welding machine and the position of a part to be welded to be kept is guaranteed. The mesh steel belt framework enters from the head end of the sizing structure 11202, and the tail end of the sizing structure is sent out, so that the forced sizing effect is realized under the action of the taper. The head end section radius of the sizing structure 11202 is larger than the tail end section radius of the sizing structure 11202, namely the sizing channel 11204 integrally generates a taper. The taper can ensure that the mesh steel belt framework pipe 10815 is welded and is subjected to surrounding clamping force, and the mesh steel belt framework pipe 10815 is prevented from rotating and moving. The sizing structure 11202 is an integral structure which enables the entire mesh steel belt skeleton tube 10815 to be located inside the sizing structure 11202 and can provide enough clamping and fixing force for the mesh steel belt skeleton tube 10815. The position adjusting and fixing structure 11206 can achieve position adjustment of the mesh steel belt skeleton tube 10815, and adjustment of the upper, lower, left and right four positions can be achieved through arrangement of the simple strip-shaped holes 11208 and the adjusting bolts 11209, so that the mesh steel belt skeleton tube 10815 with position deviation can be conveniently restored to an accurate position. The sizing channel 11204 and the mesh steel belt skeleton pipe 10815 are in frictional contact, and the contact section can perform a further sizing effect on the mesh steel belt skeleton pipe 10815 before welding, so that welding seams are accurately close together, and the welding quality is improved.

Example 5

On the basis of embodiments 1, 2 and 3, referring to fig. 4, the sizing device 112 includes a mounting base frame 11201 and a sizing structure 11202, a clamping seat 11203 for fixing the sizing structure 11202 is arranged on the mounting base frame 11201, the clamping seat 11203 is connected with the sizing structure 11202, a sizing passage 11204 in a cylindrical structure is arranged in an inner cavity of the sizing structure 11202, and the sizing passage 11204 is provided with a taper. The mesh steel belt skeleton pipe 10815 enters from the head end of the sizing structure 11202, and the tail end of the mesh steel belt skeleton pipe is sent out, so that the effects of sizing, roundness correction and pipe stabilization are achieved under the effect of the taper.

The sizing structure 11202 comprises a plurality of independent split sizing structures 11205, and the inner diameters of the split sizing structures 11205 are arranged from large to small. The split structure shows that the sizing structure 11202 comprises a plurality of independent sizing structures 11202, for example, a plurality of mesh steel belt skeleton pipes 10815 sizing plates are arranged, the plurality of sizing mesh steel belt skeleton pipes 10815 sizing plates are arranged at intervals, and the inner diameter of each mesh steel belt skeleton pipe 10815 sizing plate gradually changes from large to small along the conveying direction of the mesh steel belt skeleton pipes 10815.

The head end section radius of the sizing structure 11202 is greater than the tail end section radius of the sizing structure 11202. That is, in the sizing structure 11202, the section radius of the inlet portion of the mesh steel band skeleton tube 10815 is larger than that of the outlet portion, that is, there is a difference in the radius therebetween, so that the sizing passage 11204 is tapered as a whole. Referring to fig. 3, from right to left along the conveying direction of the mesh steel belt skeleton pipe 10815, the dimension a of the head end is larger than the dimension B of the tail end, and the dimension may be defined by a common condition such as a taper angle in addition to a diameter or a radius. The head and tail ends referred to herein may define the head and tail ends of the same split sizing structure 11205, or may be understood as the head and tail ends of the entire sizing structure 11202.

The adjustment and securement structure 113036 is used to adjust the orientation of the sizing structure 11202 up, down, left, and right.

The sizing channel 11204 is provided with a contact section that rubs against the mesh steel skeleton tube 10815. The length and location of the contact segment is related to the location of the sizing channel 11204 in friction with the mesh steel skeleton tube 10815. A mounting chassis 11201 is provided on the molding table base 11210.

Optionally, the inner diameter of each split sizing structure 11205 is provided with a taper, and the radius of the section of the head end of the same split sizing structure 11205 is larger than that of the section of the tail end of the same split sizing structure. The scheme realizes that the whole inner diameter of the sizing structure 11202 is gradually reduced, and the inner diameter of each separated sizing structure 11205 arranged at intervals is also gradually reduced.

According to the method, before the mesh steel belt framework pipe 10815 is welded at the longitudinal welding machine welding position 11211, the mesh steel belt framework pipe 10815 is corrected in outer diameter and forced to be stable, fluctuation and deflection are avoided, and the correspondence of the welding machine and the position of a part to be welded to be kept is guaranteed. The mesh steel belt framework enters from the head end of the sizing structure 11202, and the tail end of the mesh steel belt framework is sent out, so that the forced sizing effect is realized under the action of the taper. The head end section radius of the sizing structure 11202 is larger than the tail end section radius of the sizing structure 11202, namely, the sizing channel 11204 is integrally tapered. The taper can ensure that the mesh steel belt framework pipe 10815 is welded and is subjected to surrounding clamping force, and the mesh steel belt framework pipe 10815 is prevented from rotating and moving.

The sizing structure 11202 comprises a plurality of independent split sizing structures 11205, and the inner diameters of the split sizing structures 11205 are arranged from large to small. The structure has the advantages that the meshed steel belt framework pipe 10815 can be clamped in a segmented or positioned mode, different clamping degrees can be conveniently adjusted according to different positions, and the clamping can be achieved by changing the taper of a certain part.

Example 6

In addition to embodiments 1, 2 and 3, as shown in fig. 5 and 6, the mold 108 for the mesh steel belt composite plastic pipe includes a mold cavity 10801 having a cylindrical structure, a die 10802 and a core mold 10803 are provided inside the mold cavity 10801, a plastic runner 10804 for plastic compounding of the mesh steel belt skeleton pipe 10815 is provided between the mold cavity 10801, the die 10802 and the core mold 10803, a compound passage 10805 is formed in the middle of the die 10802 and the core mold 10803, the inner sizing core rod 10816 and the inner sizing cylinder 10806 connected thereto are located in the compound passage 10805, the inner wall of the core mold 10803 is provided with a first fixing structure 10807 for positioning the inner sizing core rod 10816, and the outer wall of the inner sizing core rod 10816 is provided with a second fixing structure 10808 for positioning the core mold 10803. The first fixing structure 10807 and the second fixing structure 10808 are matched with each other, so that the inner sizing cylinder 10806 is always kept at the center of the mold. The two fixing structures 11303 provide centering support for the sizing cylinder, and simultaneously reduce the contact area and the friction force.

In the production process of the mesh steel belt composite pipe, the components of the internal sizing component sequentially comprise the following components in the production direction of the pipe: a core rod connecting pipe 10817, an inner sizing core rod 10816 and a copper inner sizing cylinder 10806.

The mandrel connecting pipe 10817 is always connected to a fixed position before the mesh skeleton is welded, and a water pipe, an air pipe and the like are arranged inside the mandrel connecting pipe, because the welded mesh skeleton pipe is a closed tubular structure. The connecting pipe is generally made of commercially available steel pipes and cannot provide supporting strength.

The inner sizing mandrel 10816 is a machined part, and may be made of solid wall material to have a wall thickness, and the protrusions thereon and the protrusions in the crossmember cooperate to provide sufficient support strength for the copper inner sizing cylinder 10806, so that the inner sizing cylinder 10806 is forcibly suspended and centered.

The outer wall of the copper inner sizing cylinder 10806 is in contact with hot melt plastic on the inner wall of the mesh skeleton pipe, is of a tubular structure, is internally provided with a spiral water channel, and is used for cooling the plastic inside to form a plastic inner layer. Copper has high heat conductivity and is not adhered to molten plastic, so the sizing sleeve in the plastic pipe forming process is generally made of copper. Copper materials, however, are softer and are not wear resistant (as compared to harder steels) nor provide support strength.

Support strength is provided by inner sizing mandrel 10816, which is secured to center inner sizing cylinder 10806. And the inner sizing cylinder 10806 affects the wall thickness and quality of the inner layer of the pipe.

The method solves the problems that when the existing meshed pipe is produced and processed, the inner sizing cylinder 10806 is too long, so that the meshed steel belt framework pipe 10815 is uneven in composite thickness and asymmetric when plastic compounding is carried out. According to the sizing die, the first fixing structure 10807 is arranged on the die wall before compounding, the second fixing structure 10808 is arranged on the inner sizing mandrel 10816, and the two fixing structures 11303 are matched with each other, so that the position of the inner sizing cylinder 10806 is fixed, and the inner sizing cylinder 10806 is always kept at the central position of the die. And while providing centering support for the sizing cylinder, the contact area is reduced, and the friction force is reduced.

Example 7

In addition to embodiments 1, 2 and 3, as shown in fig. 5 and 6, the mesh steel belt composite plastic pipe mold 108 includes a mold cavity 10801 having a cylindrical structure, a mouthpiece 10802 and a core mold 10803 are provided inside the mold cavity 10801, a plastic runner 10804 for plastic compounding of the mesh steel belt skeleton pipe 10815 is provided between the mold cavity 10801, the mouthpiece 10802 and the core mold 10803, a compounding passage 10805 is formed in a middle portion of the mouthpiece 10802 and the core mold 10803, the inner sizing core rod 10816 and the inner sizing cylinder 10806 connected thereto are located in the compounding passage 10805, a first fixing structure 10807 for positioning the inner sizing core rod 10816 is provided on an inner wall of the core mold 10803, and a second fixing structure 10808 for positioning the core mold 10803 is provided on an outer wall of the inner sizing core rod 10816. The first fixing structure 10807 and the second fixing structure 10808 are matched with each other, so that the inner sizing cylinder 10806 is always kept at the center of the mold. The two fixing structures 11303 provide centering support for the sizing cylinder, and simultaneously reduce the contact area and the friction force.

The first retaining structure 10807 includes at least two sets of first raised structures 10809, the first raised structures 10809 being a raised annular strip disposed on the inner wall of the mandrel 10803 or a plurality of raised points uniformly distributed along the circumference of the inner wall of the mandrel 10803. The raised rib ring in the first raised structure 10809 can be formed completely around the inner wall of the core 10803, or can be formed partially around a portion of the inner circumference of the core 10803; similarly, the plurality of raised points in the first raised structure 10809 can be a complete revolution about the inner wall of the core mold 10803 or can be a portion of a revolution about the inner portion of the core mold 10803.

The distance between the two sets of first raised structures 10809 does not exceed the length of inner sizing mandrel 10816. When the distance between the two sets of first projections 10809 does not exceed the length of inner sizing mandrel 10816, it is possible to ensure that the flow first fixture 10807 and the second fixture 10808 are mated on inner sizing mandrel 10816 because inner sizing mandrel 10816 is typically a steel material that is harder than inner sizing cylinder 10806 that is a copper material.

The second fixture structure 10808 includes at least one set of second projection structures 10810, the second projection structures 10810 being either raised beads disposed on the outer wall of the inner sizing mandrel 10816 or a plurality of projection points evenly distributed along the circumference of the outer wall of the inner sizing mandrel 10816, and the at least one set of second projection structures 10810 being positioned between the two sets of first projection structures 10809. The raised rib ring in the second raised structure 10810 can be a complete wrap around the inner wall of the core 10803 or can be a portion of a wrap around the inner portion of the core 10803; similarly, the plurality of raised points in the second projection arrangement 10810 can be a complete revolution about the inner wall of the core mold 10803 or can be a portion of a revolution about the inner portion of the core mold 10803. When one set of the second protrusion structures 10810 is located between two sets of the first protrusion structures 10809, a three-point fixed structure is formed.

When the second protrusion structures 10810 are raised-bar rings, bead notches for avoiding welding slag are provided on the raised-bar rings. The welding slag is avoided and leaked through the arranged welding bead notch structure, and the welding slag can be prevented from being clamped between the second protrusion structure 10810 and the inner wall of the core mold 10803, so that the normal rotation of the inner sizing core rod 10816 is influenced.

When the second projection structure 10810 is a projection point, a gap between the plurality of projection points of the second projection structure 10810 is a bead gap that avoids the slag. The welding slag is avoided and leaked through the welding bead notch structure between the plurality of protruding points, and the welding slag can be prevented from being clamped between the second protruding structure 10810 and the inner wall of the core mold 10803, so that the normal rotation of the inner sizing core rod 10816 is influenced.

The die 10802 portion is provided with die adjusting bolts 10811 along the outer periphery of the cavity 10801 for adjusting the uniformity of the thickness of the plastic in the composite circumferential direction, and the die adjusting bolts 10811 are provided in the normal direction of the partial circumference of the die 10802. The inner diameter size of the bush 10802 part is adjusted by adjusting the bush adjusting bolt 10811, so that the peripheral uniformity of the wall thickness of the outer layer of the pipe is adjusted.

The cavity 10801 is provided with a die platen 10812 in a horizontal direction, and one end of the die platen 10812 is pressed against the die 10802. The die 10802 portion is fixedly mounted by the die holder 10812.

An opening is formed in one side of the mold cavity 10801, the opening is communicated with a runner 10813 connected with the extruder, and mold heating rings 10814 are arranged on the circumferential outer surface of the mold cavity 10801 in a segmented mode.

Example 8

On the basis of embodiments 1, 2 and 3, as shown in fig. 7 and 8, the inner diameter-fixed mandrel water inlet/outlet end fixing and adjusting device 113 comprises a mounting plate 11301 and a fixing rod 11302 arranged longitudinally, and a fixing structure 11303 for fixing a mandrel connecting pipe 10817 is arranged at the bottom of the fixing rod 11302.

The connection position of the fixing rod 11302 is provided with a first adjusting structure 11304 for adjusting the position of the fixing rod 11302, and the mounting plate 11301 is provided with a second adjusting structure 11305 for adjusting the position of the fixing rod 11302. Here, the first adjustment structure 11304 may be adjusted up and down or left and right, the second adjustment structure 11305 may be adjusted left and right and up and down, and for convenience of function, both the first adjustment structure 11304 and the second adjustment structure 11305 may be adjusted up, down, left and right.

First adjustment structure 11304 is including setting up a plurality of first regulation holes 11306 in dead lever 11302 upper end, and first regulation hole 11306 is the bar slot hole or a plurality of independent haplopores, is provided with fixing bolt in the first regulation hole 11306, and first regulation hole 11306 sets up the position that dead lever 11302 and mounting panel 11301 are connected. The first adjusting holes 11306 are arranged transversely or longitudinally, and when the first adjusting holes are arranged transversely, the fixing rod 11302 can adjust the left and right positions of the fixing rod 11302 relative to the mounting plate 11301 under the action of the fixing bolts; when the first adjusting hole 11306 is disposed longitudinally, it means that the fixing rod 11302 can adjust the vertical position of the fixing rod 11302 relative to the mounting plate 11301 under the action of the fixing bolt.

The second adjusting structure 11305 includes a plurality of second adjusting holes 11311 disposed on the mounting plate 11301, the second adjusting holes 11311 are long bar-shaped holes or a plurality of independent single holes, fixing bolts are disposed in the second adjusting holes 11311, and the adjusting holes are disposed at positions where the mounting plate 11301 is connected with the forming memorial archway 11312. The forming memorial archways 11312 referred to in this application are rolling mill memorial archways, in which there are two "square memorial archways" to mount the roll chock and the stand of the roll adjustment device, usually 1 at each end of the roll.

The bar slot hole distributes on four angles of mounting panel 11301, and the vertical setting of bar slot hole, upper portion or the lower part in the bar slot hole all can be provided with the fixing bolt who is used for carrying out fixed connection with mounting panel 11301 and shaping memorial archway 11312. When the setting is the bar slot hole, insert the bolt to the bar slot hole in to make it be connected with shaping memorial archway 11312, the whole adjustment that can carry out upper and lower position along the bar slot hole of mounting panel 11301 when selecting suitable position, carry out complete fixed with bolt and shaping memorial archway 11312 again, thereby fix mounting panel 11301's vertical position.

The plurality of independent single holes comprises at least four groups, each group is arranged at four corners of the mounting plate 11301, and each group comprises at least two vertically arranged single holes. When the installation is single-hole, each corner has at least two positions to adjust the height of the installation plate 11301, and after the proper position of the adjustment hole is selected, the bolt is inserted into the single-hole and is completely and fixedly connected with the forming memorial archway 11312, so that the vertical position of the installation plate 11301 is fixed.

The mounting plate 11301 is mounted on the forming memorial archway 11312 through a second adjusting structure 11305, a support arm 11307 is fixed on the mounting plate 11301, a first adjusting structure 11304 is connected with a fixing rod 11302, a fixing structure 11303 at the lower end of the fixing rod 11302 fixes the mandrel connecting pipe 10817, and the first adjusting structure 11304 is adjusted to adjust the position of the fixing rod 11302, namely, the position of the mandrel connecting pipe 10817 is adjusted; the second adjustment structure 11305 is adjusted to adjust the position of the support arm 11307, which also drives the adjustment of the position of the mandrel connecting pipe 10817 due to the mutual connection relationship.

When dead lever 11302 of this application links to each other with mounting panel 11301 directly, according to the horizontal or vertical setting of first regulation hole 11306, can adjust the left and right position of dead lever 11302 through first adjustment structure 11304, also can adjust the upper and lower position of dead lever 11302.

Example 9

On the basis of embodiments 1, 2 and 3, as shown in fig. 9 and 10, the inner-sizing-mandrel water inlet/outlet end fixing and adjusting device 113 comprises a mounting plate 11301 and a fixing rod 11302 arranged longitudinally, wherein a fixing structure 11303 for fixing a mandrel connecting pipe 10817 is arranged at the bottom of the fixing rod 11302; the joint of dead lever 11302 is provided with a first adjustment structure 11304 for adjusting the position of dead lever 11302, and the mounting plate 11301 is provided with a second adjustment structure 11305 for adjusting the position of dead lever 11302. Here, the first adjustment structure 11304 may be adjusted up and down or left and right, the second adjustment structure 11305 may be adjusted left and right or up and down, and for convenience of function, both the first adjustment structure 11304 and the second adjustment structure 11305 may be adjusted up, down, left and right.

The first adjusting structure 11304 comprises a screw 11309 for adjusting the fixing rod 11302 left and right, the support arm 11307 comprises two support plates 11310, the screw 11309 passes through the two support plates 11310 and is connected with the support arm 11307, and one end of the fixing rod 11302 is sleeved on the screw 11309 and is fixedly connected with the screw 11309. During specific operation, adjustment can be completed by directly rotating one end of the screw 11309 by a hand puller, and other power devices such as a hand wheel, a motor and the like can be added at one end of the screw 11309 according to specific use conditions.

The second adjusting structure 11305 includes a plurality of second adjusting holes 11311 disposed on the mounting plate 11301, the second adjusting holes 11311 are elongated bar-shaped holes or a plurality of independent single holes, and fixing bolts are disposed in the second adjusting holes 11311, and the adjusting holes are disposed at positions where the mounting plate 11301 is connected with the forming memorial archway 11312. The forming memorial archways 11312 referred to in this application are rolling mill memorial archways, in which there are two "square memorial archways" to mount the roll chock and the stand of the roll adjustment device, usually 1 at each end of the roll.

The fastening structure 11303 can be a nut locking manner or an upper and lower half ferrule locking manner. Other known means known to those skilled in the art may also be used for fixation.

The mounting plate 11301 is mounted on the forming memorial archway 11312 through a second adjusting structure 11305, a support arm 11307 is fixed on the mounting plate 11301, a first adjusting structure 11304 is connected with a fixing rod 11302, a fixing structure 11303 at the lower end of the fixing rod 11302 fixes the mandrel connecting pipe 10817, and the first adjusting structure 11304 is adjusted to adjust the position of the fixing rod 11302, namely, the position of the mandrel connecting pipe 10817 is adjusted; the second adjustment structure 11305 is adjusted to adjust the position of the support arm 11307, and the mutual connection relationship also drives the adjustment of the position of the mandrel connecting pipe 10817.

When the fixing rod 11302 of the present application is connected with the mounting plate 11301 through the support arm 11307, the position of the fixing rod 11302 relative to the support arm 11307 can be adjusted in the left-right direction through the first adjusting structure 11304, and the up-down direction of the fixing rod 11302 can be adjusted through the second adjusting structure 11305.

The mandrel connecting pipe 10817 can be supported, and the position of the mandrel connecting pipe 10817 can be adjusted; this application can fixed core rod connecting pipe 10817, when preventing that the mesh pipe is compound, front end core rod axial displacement forward to can adjust four directions about from top to bottom to the left and right side core rod connecting pipe 10817, guarantee core rod connecting pipe 10817 between two parties.

Claims

1. A production process of a mesh steel belt composite plastic pipe is characterized by comprising the following steps: the method comprises the following steps of:

unreeling the mesh steel strip: the mesh steel belt unreeling machine (101) unreels the mesh steel belt;

edge cutting of the mesh steel belt: the edge trimmer (105) shears edges on two sides of the meshed steel strip on line;

forming the mesh steel strip: forming the flat and straight mesh steel belt into a tubular structure by a mesh skeleton pipe forming device (106); the sizing device (112) of the mesh frame pipe forming device (106) is used for preventing the rotation and the shaking generated in the production of the mesh steel belt frame pipe (10815) before welding and performing forced rounding;

longitudinally welding into a pipe: longitudinally butt-welding the meshed steel strip which is in a tubular structure through a longitudinal welding device (107) in a meshed framework pipe forming device (106) to obtain a meshed framework pipe;

heating: heating the mesh skeleton tube by a heating device in a mesh skeleton tube forming device (106);

plastic compounding: respectively compounding plastics on the inner wall and the outer wall of the mesh skeleton pipe through a mesh steel belt composite plastic pipe mould (108) to form a mesh steel belt composite plastic pipe; the mesh steel belt composite plastic pipe die (108) is used for extruding plastic, so that the plastic is compounded with the mesh pipe skeleton pipe, meanwhile, the position of the inner sizing cylinder (10806) is fixed in the extrusion process, and a support is provided for the inner sizing core rod (10816);

the mesh steel belt composite plastic pipe mold (108) comprises a core mold (10803), wherein a first fixing structure (10807) for positioning an inner sizing core rod (10816) is arranged on the inner wall of the core mold (10803), the first fixing structure (10807) comprises at least two groups of first protrusion structures (10809), and the first protrusion structures (10809) are convex ring strips arranged on the inner wall of the core mold (10803) or a plurality of protrusion points uniformly distributed along the circumference of the inner wall of the core mold (10803);

a second fixing structure (10808) used for positioning the core mold (10803) is arranged on the outer wall of the inner sizing core rod (10816), the second fixing structure (10808) comprises at least one group of second protrusion structures (10810), the second protrusion structures (10810) are convex ring strips arranged on the outer wall of the inner sizing core rod (10816) or a plurality of protrusion points uniformly distributed along the circumference of the outer wall of the inner sizing core rod (10816), and at least one group of second protrusion structures (10810) is positioned between two groups of first protrusion structures (10809);

shaping and cooling: shaping and cooling the obtained hole-mesh steel belt composite plastic pipe by a cooling shaping device;

traction: the hole-network steel-belt composite plastic pipe is pulled through a pipe tractor (110);

cutting: and cutting the meshed steel strip composite plastic pipe by a pipe cutting machine (111).

2. The process for producing a perforated steel-strip composite plastic pipe according to claim 1, wherein: in the step of forming the mesh steel belt, the sizing device (112) corrects the outer diameter of the mesh steel belt framework pipe (10815) and forces the mesh steel belt framework pipe to be stable, the mesh steel belt framework pipe is not fluctuated and deflected, the longitudinal welding device (107) corresponds to the position of a part to be welded, the mesh steel belt framework enters from the head end of the sizing structure (11202), the tail end of the sizing structure is sent out, and forced sizing is realized under the action of the tapered sizing structure (11202).

3. The process for producing a perforated steel-strip composite plastic pipe according to claim 1, wherein: the method is characterized in that the following steps are also sequentially arranged after the step of unreeling the mesh steel belt:

plate shearing: shearing two end faces of adjacent coiled mesh steel strips before butt welding by using a plate shearing machine (102) or shearing the steel strips;

butt joint of mesh steel strips: fixing the adjacent rolls of the meshed steel strips through a meshed steel strip splicing device (103);

feeding a mesh steel belt: the tail strip of the previous coil of mesh steel strip to be unreeled is pulled into a strip storage frame (104) through a mesh steel strip feeding device, and the tail strip of the previous coil of mesh steel strip in the strip storage frame (104) is returned to be butted with the next coil of mesh steel strip after the coil change of the next coil of mesh steel strip is finished;

and (3) feeding and detecting the mesh steel strip: the feeding amount of the front-end steel belt is dynamically detected and fed back to the compensation feeding device to adjust the feeding speed.

4. The utility model provides a compound plastic tubing production facility of mesh steel band which characterized in that: the mesh steel belt frame pipe forming device comprises a mesh steel belt unreeling machine (101), an edge trimmer (105), a mesh frame pipe forming device (106), a longitudinal welding device (107), a mesh steel belt composite plastic pipe die (108), a tractor (110) and a cutting machine (111) which are sequentially distributed, wherein the mesh frame pipe forming device (106) comprises a sizing device (112) for preventing a mesh steel belt frame pipe (10815) before welding from rotating, and the mesh steel belt composite plastic pipe die (108) supports and limits an inner sizing cylinder (10806);

the outer wall of the inner sizing mandrel (10816) is provided with a second fixing structure (10808) for positioning the core mold (10803), the second fixing structure (10808) comprises at least one group of second protrusion structures (10810), the second protrusion structures (10810) are convex ring strips arranged on the outer wall of the inner sizing mandrel (10816) or a plurality of protrusion points uniformly distributed along the circumference of the outer wall of the inner sizing mandrel (10816), and at least one group of second protrusion structures (10810) is located between two groups of first protrusion structures (10809).

5. The production equipment of the perforated steel-strip composite plastic pipe as claimed in claim 4, wherein: the device also comprises a plate shearing machine (102), a mesh steel belt connecting device (103), a belt storage frame (104) and a cooling sizing device (109).

6. The production equipment of the perforated steel-strip composite plastic pipe as claimed in claim 4, wherein: the sizing device (112) comprises an installation underframe (11201) and a sizing structure (11202), wherein at least one pair of clamping seats (11203) used for fixing the sizing structure (11202) is arranged on the installation underframe (11201), the clamping seats (11203) are connected with the sizing structure (11202), a sizing channel (11204) in a cylindrical structure is arranged in an inner cavity of the sizing structure (11202), and the sizing channel (11204) is provided with a taper.

7. The production equipment of the perforated steel-strip composite plastic pipe as claimed in claim 6, wherein: along the production direction of the mesh steel belt framework pipe (10815), the section radius of the head end of the sizing structure (11202) is larger than that of the tail end of the sizing structure (11202); the sizing structure (11202) is an integrated structure or a plurality of independent split sizing structures (11205), and the inner diameters of the split sizing structures (11205) are arranged from large to small;

a position adjusting and fixing structure (11206) for adjusting the position of the sizing structure (11202) is arranged on the clamping seat (11203); the position adjusting and fixing structure (11206) comprises a support (11207) arranged on the mounting underframe (11201), strip-shaped holes (11208) distributed up and down are formed in the support (11207), adjusting bolts (11209) are arranged in the strip-shaped holes (11208), and one ends of the adjusting bolts (11209) are connected with the clamping seat (11203).

8. The production equipment of the perforated steel-strip composite plastic pipe as claimed in claim 4, wherein: the hole mesh steel belt composite plastic pipe mold (108) further comprises a mold cavity (10801) of a cylindrical structure, a mouth mold (10802) is arranged inside the mold cavity (10801), a plastic runner (10804) for plastic compounding of the hole mesh steel belt framework pipe (10815) is arranged among the mold cavity (10801), the mouth mold (10802) and a core mold (10803), a compound channel (10805) is formed in the middle of the mouth mold (10802) and the core mold (10803), and an inner diameter-determining core rod (10816) and an inner diameter-determining cylinder (10806) connected with the inner diameter-determining core rod are located in the compound channel (10805); the distance between the two sets of first projection formations (10809) does not exceed the length of the inner sizing mandrel (10816).

9. The production equipment of the perforated steel-strip composite plastic pipe as claimed in claim 4, wherein: a neck ring mold adjusting bolt (10811) used for adjusting the plastic thickness uniformity in the composite circumferential direction is arranged on the neck ring mold (10802) along the periphery of the mold cavity (10801), and the neck ring mold adjusting bolt (10811) is arranged in the normal direction of the partial circumference of the neck ring mold (10802); a die pressing plate (10812) is arranged in the die cavity (10801) in the horizontal direction, and one end of the die pressing plate (10812) is pressed on the die (10802); an opening is arranged on one side of the die cavity (10801), the opening is communicated with a runner (10813) connected with the extruder, and a die heating ring (10814) is arranged on the circumferential outer surface of the die cavity (10801) in a subsection mode.

10. The manufacturing equipment of the perforated steel belt composite plastic pipe as claimed in claim 4, wherein:

the mesh skeleton pipe forming device (106) is also provided with an inner sizing mandrel water inlet and outlet end fixed adjusting device (113), the inner sizing mandrel water inlet and outlet end fixed adjusting device (113) comprises an installation plate (11301) and a fixing rod (11302) which is longitudinally arranged, and the bottom of the fixing rod (11302) is provided with a fixing structure (11303) for fixing a mandrel connecting pipe (10817); the connecting position of the fixing rod (11302) is provided with a first adjusting structure (11304) for adjusting the position of the fixing rod (11302), and the mounting plate (11301) is provided with a second adjusting structure (11305) for adjusting the position of the fixing rod (11302).

11. The manufacturing equipment of the perforated steel belt composite plastic pipe as claimed in claim 10, wherein: the first adjusting structure (11304) comprises a plurality of first adjusting holes (11306) arranged at the upper end of the fixing rod (11302), the first adjusting holes (11306) are strip-shaped long holes or a plurality of independent single holes, fixing bolts are arranged in the first adjusting holes (11306), and the first adjusting holes (11306) are arranged at the positions where the fixing rod (11302) is connected with the mounting plate (11301); be provided with between mounting panel (11301) and dead lever (11302) support arm (11307), support arm (11307) both ends link to each other with mounting panel (11301) and dead lever (11302) respectively, support arm (11307) and dead lever (11302) junction are provided with and carry out the first adjustment structure (11304) of controlling the position adjustment to dead lever (11302), are provided with on mounting panel (11301) to be used for carrying out second adjustment structure (11305) of upper and lower position adjustment to support arm (11307) and dead lever (11302).

12. The production equipment of the perforated steel-strip composite plastic pipe as claimed in claim 10, wherein: the first adjusting structure (11304) comprises a screw rod (11309) used for adjusting the fixing rod (11302) in a left-right mode, the supporting arm (11307) comprises two supporting plates (11310), the screw rod (11309) penetrates through the two supporting plates (11310) and is connected with the supporting arm (11307), and one end of the fixing rod (11302) is sleeved on the screw rod (11309) and is fixedly connected with the screw rod (11309).

13. The production equipment of the perforated steel-strip composite plastic pipe as claimed in claim 10, wherein: the second adjusting structure (11305) comprises a plurality of second adjusting holes (11311) arranged on the mounting plate (11301), the second adjusting holes (11311) are long strip-shaped holes or a plurality of independent single holes, fixing bolts are arranged in the second adjusting holes (11311), and the adjusting holes are arranged at the positions where the mounting plate (11301) is connected with the forming memorial archways (11312); the strip-shaped long holes are distributed at four corners of the mounting plate (11301), are vertically arranged, and the upper part or the lower part in each strip-shaped long hole can be provided with a fixing bolt for fixedly connecting the mounting plate (11301) with the forming memorial archway (11312); the plurality of independent single holes at least comprise four groups, each group is arranged at four corners of the mounting plate (11301), and each group at least comprises two single holes which are vertically arranged; the fixing structure (11303) adopts a nut locking mode or an upper half ferrule and a lower half ferrule locking mode.