CN113909350A

CN113909350A - Aluminum-plastic composite pipe bending prefabricating equipment

Info

Publication number: CN113909350A
Application number: CN202111073418.1A
Authority: CN
Inventors: 金建强; 陈营; 余林杰
Original assignee: Linhai Weixing New Building Materials Co Ltd
Current assignee: Linhai Weixing New Building Materials Co Ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-01-11
Anticipated expiration: 2041-09-14
Also published as: CN113909350B

Abstract

The invention provides an aluminum-plastic composite pipe bending prefabricating device which comprises a chassis, wherein a vertically arranged intermediate column is fixed on the upper surface of the chassis, a lifting platform with adjustable height is arranged on one side of the upper surface of the chassis and is connected with the middle column in a sliding way, the upper surface of the lifting platform is provided with a placing disc for storing the coil pipes, one side of the placing disc is provided with a guide mechanism for guiding the pipes to move, the guide mechanism is arranged on the upper surface of the lifting platform, one side of the guide mechanism, which is far away from the placing disc, is provided with a bending mechanism for bending the pipe, the bending mechanism is rotationally connected with a traction mechanism, the bending mechanism and the traction mechanism are both connected with the intermediate column, one side of the traction mechanism, which is far away from the guide mechanism, is provided with a vertical stretching mechanism with an adjustable position, and compared with the prior art, the invention has the following beneficial effects: the bending machine is combined with a drawing machine for bending, so that the precision is high, the efficiency is high, the bending rate is consistent, and the length of the pipe is not influenced.

Description

Aluminum-plastic composite pipe bending prefabricating equipment

Technical Field

The invention discloses an aluminum-plastic composite pipe bending prefabricating device, and belongs to the field of aluminum-plastic composite pipe processing equipment.

Background

The aluminum-plastic composite pipe is more and more available in the market, and has the advantages of good shaping property, good flexibility, convenient transportation of coil pipes, convenient quick insertion and connection, complete pipe and the like, but the aluminum-plastic composite pipe is very inconvenient in the construction process: 1. manual bending is inaccurate, so that the pipe is not aligned with a pipe groove dug in advance, the pipe needs to be bent again, the damage to the pipe is high, and the stability and the service life of a system are influenced; 2. the bending difficulty is high, the bending of the aluminum-plastic composite pipe is very laborious, workers often make a few times and feel aching and aching arms, and the bending degree is inaccurate and is more unsightly; 3. the connection difficulty is that the pipe is long due to the characteristic that one pipe is grounded, so that the subsequent bending and welding processes are easy to influence the previous processes, and the working efficiency is reduced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide bending and prefabricating equipment for an aluminum-plastic composite pipe, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an aluminium-plastic composite pipe prefabricated equipment that bends, includes the chassis, the chassis upper surface is fixed with the intermediate prop of vertical arrangement, but the elevating platform of height-adjusting is installed to chassis upper surface one side, elevating platform and intermediate prop sliding connection, the surface mounting has the dish of placing that is used for depositing the coil pipe on the elevating platform, it is equipped with the guiding mechanism who is used for guiding the tubular product removal to place dish one side, guiding mechanism installs on the elevating platform upper surface, guiding mechanism deviates from the one side of placing the dish and is equipped with the mechanism of bending that is used for bending the tubular product, it is connected with drive mechanism to rotate in the mechanism of bending, it all is connected with the intermediate prop to bend mechanism and drive mechanism, one side that drive mechanism deviates from guiding mechanism is equipped with the vertical stretching mechanism of adjustable position, vertical stretching mechanism installs on the chassis upper surface.

Further, an outlet pipe opening arranged in the tangential direction of the placing disc is formed in the annular side face of the placing disc, a limiting ring used for limiting the end position of the pipe is fixedly connected to the upper portion of the annular side face of the placing disc, and a detachable mesh enclosure is connected to one side face of the placing disc through screws.

Further, guiding mechanism includes U type frame, U type frame lower fixed surface is connected with branch, the one end and the elevating platform fixed connection of U type frame are kept away from to branch, the pulley that is used for pressing to hold tubular product is all installed to upper surface and lower surface in the U type frame, U type frame is equipped with the guide ring that is used for restricting tubular product removal orbit towards the one side of placing the dish, guide ring outer fixed surface is connected with L type pole, the one end and the elevating platform fixed connection of guide ring are kept away from to L type pole.

Furthermore, the bending mechanism comprises a fixed panel, two fixed rings which are sleeved on the middle column and fixedly connected with the middle column are mounted on the fixed panel, a connecting plate is mounted at the upper end of the middle column and is of an L-shaped structure, one end of the connecting plate, far away from the middle column, is fixedly connected with the fixed panel, one surface of the fixed panel, facing the placing disc, is provided with a through hole for inserting a pipe, one side of the through hole, far away from the placing disc, is provided with a jacking part for jacking the bent part of the pipe, a horizontally arranged guide rod is fixedly connected onto the jacking part, the guide rod penetrates through the fixed panel, one end, far away from the jacking part, of the guide rod is connected with a movable end of a first driving part for controlling the guide rod to move linearly, the cylinder body end of the first driving part is fixedly connected with the fixed panel, and an arc-shaped plate for pressing the pipe is arranged at the lower part, far away from the jacking part, of the through hole, and a fourth driving part for driving the arc plate to move up and down is arranged at the lower part of the outer surface of the arc plate, and the cylinder end of the fourth driving part is fixed on the fixed panel.

Furthermore, the traction assembly comprises a supporting frame, a fixing lug which is arranged between two fixing rings is fixedly connected to the supporting frame, the fixing lug is sleeved on the middle column and is in sliding connection with the middle column, one end, close to the fixing lug, of the supporting frame is rotatably connected with a driving rod, one end, far away from the supporting frame, of the driving rod is rotatably connected with the fixing panel, one end, close to the fixing panel, of the driving rod is rotatably connected with the movable end of a third driving piece, the cylinder end of the third driving piece is fixedly connected with the fixing panel, a clamping plate with a cross section in a shape like a Chinese character 'ji' is sleeved on the supporting frame, a first screw rod which is arranged along the length direction of the supporting frame is in threaded connection with the clamping plate, one end of the first screw rod is rotatably connected with the supporting frame, the other end of the first screw rod is connected with a first driving device which is used for driving the first screw rod to rotate, and the first driving device is fixedly connected with the supporting frame, sliding mounting has the guide bar with first screw rod parallel arrangement on the grip block, the both ends of guide bar all with carriage fixed connection, the grip block interior symmetry is installed two holders that are used for centre gripping tubular product, two the second driving piece that is used for controlling the holder and reciprocates is all installed to the holder looks back, second driving piece cylinder body end and grip block fixed connection.

Further, the vertical stretching mechanism comprises a first hydraulic cylinder which is vertically arranged, the lower end of the first hydraulic cylinder is fixedly connected with a sliding block, the sliding block is connected with a sliding rail in a sliding manner, the sliding rail is fixed on the upper surface of a chassis, a second screw rod which is arranged in parallel with the sliding rail is in threaded connection with the sliding block, two ends of the second screw rod are both in rotary connection with the chassis, one end of the second screw rod is connected with a third driving device for driving the second screw rod to rotate, the upper end of the first hydraulic cylinder is fixedly connected with a hollow top plate, one end of the top plate, far away from the first hydraulic cylinder, is in hinged connection with two semicircular clamping plates for clamping a pipe, the outer sides of the two semicircular clamping plates are both provided with an arc-shaped pressing plate for pressing the semicircular clamping plates, one end of the arc-shaped pressing plate, far away from the semicircular clamping plates, is in rotary connection with the top plate, and two parallel side surfaces of the top plate are both provided with second driving devices for driving the arc-shaped pressing plates to rotate, the hydraulic system is characterized in that a hydraulic oil tank connected and communicated with the hydraulic pump is arranged on the upper surface of the chassis, and the first hydraulic cylinder is respectively connected and communicated with the hydraulic oil tank and the hydraulic pump through a high-pressure hose.

Furthermore, two scissor fork brackets which are rotationally connected with the lifting platform are symmetrically arranged on the lower surface of the lifting platform, one end part of the scissors fork bracket far away from the lifting platform is rotationally connected with the chassis, the other end part of the scissors fork bracket far away from the lifting platform is rotationally connected with a round rod, the two ends of the round rod are both provided with sliding chutes which are fixed on the upper surface of the chassis, two parallel side surfaces of the sliding chutes are both provided with strip-shaped grooves which are arranged along the length direction of the sliding chutes, the end part of the round bar penetrates through the strip-shaped groove, the middle part of the round bar is rotationally connected with the movable end of a second hydraulic cylinder, the second hydraulic cylinder body is rotationally connected to the upper surface of the chassis, the second hydraulic cylinder is respectively connected and communicated with the hydraulic oil tank and the hydraulic pump through a high-pressure hose, one end of the lifting platform, which is close to the middle column, is fixedly connected with a bearing, and the bearing is sleeved on the middle column and is in sliding connection with the middle column.

Furthermore, a computer for inputting drawings is arranged on the upper surface of the lifting table, and an electrical cabinet for storing the relay and the PLC is installed on one side, far away from the computer, of the upper surface of the lifting table.

Furthermore, universal brake wheels are mounted at four edges of the lower surface of the chassis.

The invention has the beneficial effects that: the bending prefabricating equipment for the aluminum-plastic composite pipe combines the drawing for mechanical bending, has high precision, high efficiency and consistent bending rate, the length of the pipe is not affected, when the pipe is integrally arranged, the drawing parameters of the pipe are required to be input anticlockwise according to a room, the traction mechanism on the fixed panel can only rotate 90 degrees towards one side, the movement of the pipe in three degrees of freedom and the bending in three directions are realized through the vertical stretching mechanism, the traction mechanism and the bending mechanism, namely two vertical directions, namely the left direction and the right direction, when the room is small and the length of the pipe is short, the bent pipe of the chassis can be directly fixed, if the room is large and the length of the pipe is long, the pipe fitting can be bent while the chassis is moved, the aluminum-plastic composite pipe can be well bent and shaped on site, and then the pipe fitting is only required to be installed and fixed on a wall, so that the working efficiency is greatly increased.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural diagram of an aluminum-plastic composite pipe bending prefabricating apparatus according to the present invention;

FIG. 2 is an assembly schematic diagram of a guide mechanism, a bending mechanism, a traction mechanism and a middle column in the bending prefabrication equipment for the aluminum-plastic composite pipe;

FIG. 3 is an assembly diagram of another view angle of the guiding mechanism, the bending mechanism, the traction mechanism and the intermediate column in the bending prefabrication equipment for the aluminum-plastic composite pipe;

FIG. 4 is an assembly diagram of a fixing panel, a supporting frame and a middle column in the bending prefabrication equipment for the aluminum-plastic composite pipe;

FIG. 5 is an assembly diagram of a bending mechanism, a traction mechanism and a middle column in the bending prefabrication equipment for the aluminum-plastic composite pipe;

FIG. 6 is an assembly schematic diagram of a semicircular clamping plate, an arc-shaped pressing plate and a top plate in the bending prefabrication equipment for the aluminum-plastic composite pipe;

in the figure: 1-chassis, 2-universal brake wheel, 3-second screw, 4-slide rail, 5-slide block, 6-hydraulic oil tank, 7-first hydraulic cylinder, 8-middle column, 9-support frame, 10-top plate, 11-clamping plate, 12-fixed panel, 13-U-shaped frame, 14-L-shaped rod, 15-guide ring, 16-limit ring, 17-mesh cover, 18-placing disc, 19-outlet pipe, 20-electrical cabinet, 21-second hydraulic cylinder, 22-round rod, 23-chute, 24-strip groove, 25-scissor fork support, 26-lifting platform, 27-computer, 28-connecting plate, 29-pulley, 30-first driving piece, 31-support rod, 32-guide rod, 33-a bearing, 34-a jacking part, 35-a second driving part, 36-a clamping part, 37-a first screw rod, 38-a first driving device, 39-a guide rod, 40-a third driving part, 41-a driving rod, 42-an arc-shaped plate, 43-a fourth driving part, 44-an arc-shaped pressing plate, 45-a second driving device, 46-a semicircular clamping plate and 47-a through hole.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1 to 6, the present invention provides a technical solution: the utility model provides a compound pipe of aluminium-plastic prefabricated equipment that bends, includes chassis 1, and universal brake wheel 2 is all installed to four edges and corners on 1 lower surface on chassis, installs four universal brake wheels 2 on chassis 1, and whole equipment can be for the people promoting, and it is convenient to remove.

The utility model discloses a vertical layout's center post 8 is fixed with to chassis 1 upper surface, but height-adjusting's elevating platform 26 is installed to 1 upper surface one side on chassis, elevating platform 26 and center post 8 sliding connection, elevating platform 26 upper surface is equipped with the computer 27 that is used for the input drawing, one side that computer 27 was kept away from to elevating platform 26 upper surface is installed and is used for depositing the relay, the regulator cubicle 20 of PLC controller, computer 27 is used for the input drawing, can look over the picture on the spot, the comparison graph, detect the exactness and the accuracy of drawing, can control the shape of the last tensile aluminium-plastic pipe of bending, according to the position adjustment parameter of on-the-spot pipe socket, the problem of managing that the mistake of pipe socket leads to has been avoided.

The upper surface of a lifting platform 26 is provided with a placing plate 18 for storing a coil pipe, one side of the placing plate 18 is provided with a guide mechanism for guiding the pipe to move, the guide mechanism is arranged on the upper surface of the lifting platform 26, one side of the guide mechanism, which is far away from the placing plate 18, is provided with a bending mechanism for bending the pipe, the bending mechanism is rotatably connected with a traction mechanism, the bending mechanism and the traction mechanism are both connected with a middle column 8, one side of the traction mechanism, which is far away from the guide mechanism, is provided with a vertical stretching mechanism capable of adjusting the position, the vertical stretching mechanism is arranged on the upper surface of a chassis 1, when the pipe is integrally distributed, the pipe parameters need to be input anticlockwise according to a room, the traction mechanism on a drawing panel 12 can only rotate towards one side by 90 degrees, and the movement of the pipe in three degrees of freedom and the bending in three directions, namely the two vertical directions, are realized through the vertical stretching mechanism, the traction mechanism and the bending mechanism, the left direction and the right direction are small, the chassis 1 can be directly fixed to bend the pipe fittings when the pipe length is short, if the room is large, the pipe length is long, the chassis 1 can be moved to bend the pipe fittings while moving, the aluminum-plastic composite pipe can be well bent and shaped on site, and then the pipe fittings are only required to be installed and fixed on a wall, so that the working efficiency is greatly increased.

As an embodiment of the present invention: place and offer on the dish 18 annular side along placing a mouth of pipe 19 that 18 tangential direction arranged, place 18 annular side upper portion position fixedly connected with of dish and be used for limiting the spacing ring 16 of tubular product tip position, it has detachable screen panel 17 to place 18 a side of dish through screwed connection, it is used for depositing the compound pipe of aluminium-plastic to place dish 18, it has a mouth of pipe 19 to place above the dish 18, a pipeline is used for revising, the state of coil pipe is conveniently observed to screen panel 17, for example twine, whether remaining in addition, can directly put into the coil pipe, make things convenient for the transportation of the compound pipe of aluminium-plastic.

As an embodiment of the present invention: the guide mechanism comprises a U-shaped frame 13, a supporting rod 31 is fixedly connected to the lower surface of the U-shaped frame 13, one end, far away from the U-shaped frame 13, of the supporting rod 31 is fixedly connected with the lifting platform 26, pulleys 29 used for pressing and holding the pipe are installed on the inner upper surface and the lower surface of the U-shaped frame 13, a guide ring 15 used for limiting the moving track of the pipe is arranged on one side, facing the placing disc 18, of the U-shaped frame 13, an L-shaped rod 14 is fixedly connected to the outer surface of the guide ring 15, one end, far away from the guide ring 15, of the L-shaped rod 14 is fixedly connected with the lifting platform 26, the pipe is not bent by other parts before the bending process, the track of the pipe is guided, and the pipe can be made to be smooth and straight by the two pulleys 29, and the subsequent bending process is not affected.

As an embodiment of the present invention: the bending mechanism comprises a fixed panel 12, two fixed rings which are sleeved on a middle column 8 and fixedly connected with the middle column 8 are installed on the fixed panel 12, a connecting plate 28 is installed at the upper end of the middle column 8, the connecting plate 28 is of an L-shaped structure, one end of the connecting plate 28, far away from the middle column 8, is fixedly connected with the fixed panel 12, one side, facing the placing disc 18, of the fixed panel 12 is provided with a through hole 47 for inserting a pipe, one side, far away from the placing disc 18, of the through hole 47 is provided with a jacking piece 34 for jacking a pipe bending part, the jacking piece 34 is fixedly connected with a horizontally arranged guide rod 32, the guide rod 32 penetrates through the fixed panel 12, one end, far away from the jacking piece 34, of the guide rod 32 is connected with the movable end of a first driving piece 30 for controlling the guide rod 32 to linearly move, a cylinder end of the first driving piece 30 is fixedly connected with the fixed panel 12, and an arc-shaped plate 42 for pressing and holding the pipe is arranged at the lower part, far away from the jacking piece 34, of the through hole 47, the fourth driving part 43 used for driving the arc plate 42 to move up and down is installed at the lower portion of the outer surface of the arc plate 42, the cylinder end of the fourth driving part 43 is fixed on the fixed panel 12, after the pipe is placed in the through hole 47, the fourth driving part 43 is controlled to extend, the arc plate 42 clamps the pipe in the through hole 47, the first driving part 30 is used for driving the jacking part 34 to move, and the effect of adjusting the relative position of the jacking part 34 and the pipe is achieved.

As an embodiment of the present invention: the traction mechanism comprises a supporting frame 9, a fixing lug between two fixing rings is fixedly connected to the supporting frame 9, the fixing lug is sleeved on a middle column 8 and is connected with the middle column 8 in a sliding manner, one end, close to the fixing lug, of the supporting frame 9 is rotatably connected with a driving rod 41, one end, far away from the supporting frame 9, of the driving rod 41 is rotatably connected with a fixed panel 12, one end, close to the fixed panel 12, of the driving rod 41 is rotatably connected with a movable end of a third driving piece 40, the cylinder body end of the third driving piece 40 is fixedly connected with the fixed panel 12, a clamping plate 11 with a cross section in a shape like a Chinese character 'ji' is sleeved on the supporting frame 9, a first screw 37 arranged along the length direction of the supporting frame 9 is in threaded connection with the clamping plate 11, one end of the first screw 37 is rotatably connected with the supporting frame 9, the other end of the first screw 37 is connected with a first driving device 38 used for driving the first screw 37 to rotate, and the first driving device 38 is fixedly connected with the supporting frame 9, the clamping plate 11 is provided with a guide rod 39 which is arranged in parallel with the first screw 37 in a sliding mode, two ends of the guide rod 39 are fixedly connected with the supporting frame 9, two clamping pieces 36 used for clamping pipes are symmetrically arranged in the clamping plate 11, a second driving piece 35 used for controlling the clamping pieces 36 to move up and down is arranged on the back faces of the two clamping pieces 36, the cylinder body end of the second driving piece 35 is fixedly connected with the clamping plate 11, the supporting frame 9 does not enter a rotating state, the two clamping pieces 36 are in an opening state at the moment, after the pipes are inserted between the two clamping pieces 36, the two clamping pieces 36 are controlled to be closed, a pipeline is fixed, the arc-shaped plate 42 on the fixing panel 12 is loosened, the first driving device 38 drives the clamping plate 11 to move, and the clamping plate 11 drives the pipeline to move forwards.

As an embodiment of the present invention: the vertical stretching mechanism comprises a first hydraulic cylinder 7 which is vertically arranged, the lower end of the first hydraulic cylinder 7 is fixedly connected with a sliding block 5, the sliding block 5 is in sliding connection with a sliding rail 4, the sliding rail 4 is fixed on the upper surface of a chassis 1, the sliding block 5 is in threaded connection with a second screw rod 3 which is arranged in parallel with the sliding rail 4, two ends of the second screw rod 3 are both in rotating connection with the chassis 1, one end of the second screw rod 3 is connected with a third driving device which is used for driving the second screw rod 3 to rotate, the upper end of the first hydraulic cylinder 7 is fixedly connected with a hollow top plate 10, one end of the top plate 10, which is far away from the first hydraulic cylinder 7, is hinged with two semicircular clamping plates 46 which are used for clamping a pipe, the outer sides of the two semicircular clamping plates 46 are both provided with an arc-shaped pressing plate 44 which is used for pressing the semicircular clamping plates 46, one end of the arc-shaped pressing plate 44, which is far away from the semicircular clamping plate 46, is rotatably connected with the top plate 10, two parallel side surfaces of the top plate 10 are both provided with a second driving device 45 which is used for driving the arc-shaped pressing plate 44 to rotate, surface mounting has the communicating hydraulic tank 6 that links to each other with the hydraulic pump on chassis 1, first pneumatic cylinder 7 passes through high-pressure hose respectively with hydraulic tank 6, the hydraulic pump links to each other and communicates with each other, when the pipeline needs carry out vertical stretching, with two semicircle splint 46 centre grippings on the pipeline, then adjust the position of first pneumatic cylinder 7, make semicircle splint 46 remove to required position department, utilize second drive arrangement 45 drive arc clamp plate 44 to rotate and press and hold semicircle splint 46, fixed pipeline, first pneumatic cylinder 7 is flexible during operation, it does vertical motion to drive the pipeline, accomplish pipeline vertical stretching.

As an embodiment of the present invention: two scissor fork supports 25 rotatably connected with the lifting platform 26 are symmetrically arranged on the lower surface of the lifting platform 26, one end part of the scissor fork support 25 far away from the lifting platform 26 is rotatably connected with the chassis 1, the other end part of the scissor fork support 25 far away from the lifting platform 26 is rotatably connected with a round rod 22, two ends of the round rod 22 are respectively provided with a sliding chute 23, the sliding chutes 23 are fixed on the upper surface of the chassis 1, two parallel side surfaces of the sliding chutes 23 are respectively provided with a strip-shaped groove 24 arranged along the length direction of the sliding chute 23, the end part of the round rod 22 penetrates through the strip-shaped groove 24, the middle position of the round rod 22 is rotatably connected with a movable end of a second hydraulic cylinder 21, the cylinder body of the second hydraulic cylinder 21 is rotatably connected on the upper surface of the chassis 1, the second hydraulic cylinder 21 is respectively connected and communicated with a hydraulic oil tank 6 and a hydraulic pump through a high-pressure hose, one end of the lifting platform 26 near the middle column 8 is fixedly connected with a bearing 33, the bearing 33 is sleeved on the middle column 8 and is slidably connected with the middle column 8, when the second hydraulic cylinder 21 is controlled to extend or contract, the scissor fork support 25 is expanded or contracted, and the height of the lifting platform 26 can be conveniently adjusted.

Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.

Claims

1. The utility model provides a compound pipe of plastic-aluminum prefabricated equipment that bends, includes chassis (1), its characterized in that: a middle column (8) which is vertically arranged is fixed on the upper surface of the chassis (1), a lifting platform (26) with adjustable height is arranged on one side of the upper surface of the chassis (1), the lifting platform (26) is connected with the middle column (8) in a sliding way, the upper surface of the lifting platform (26) is provided with a placing disc (18) for storing the coil pipe, a guide mechanism for guiding the pipe to move is arranged on one side of the placing disc (18), the guide mechanism is arranged on the upper surface of the lifting table (26), a bending mechanism for bending the pipe is arranged on one side of the guide mechanism, which is far away from the placing disc (18), the bending mechanism is rotationally connected with a traction mechanism, the bending mechanism and the traction mechanism are both connected with the intermediate column (8), one side of the traction mechanism, which is far away from the guide mechanism, is provided with a vertical stretching mechanism with adjustable position, and the vertical stretching mechanism is arranged on the upper surface of the chassis (1).

2. The bending and prefabricating equipment for the aluminum-plastic composite pipe according to claim 1, wherein the bending and prefabricating equipment comprises: place and offer on dish (18) annular side along placing a dish (18) tangential direction and arrange out mouth of pipe (19), place dish (18) annular side upper portion position fixedly connected with be used for limiting the spacing ring (16) of tubular product tip position, it has detachable screen panel (17) to place a dish (18) side through screwed connection.

3. The bending and prefabricating equipment for the aluminum-plastic composite pipe according to claim 1, wherein the bending and prefabricating equipment comprises: the guide mechanism includes U type frame (13), fixed surface is connected with branch (31) under U type frame (13), the one end and elevating platform (26) fixed connection of U type frame (13) are kept away from in branch (31), pulley (29) that are used for pressing to hold tubular product are all installed to upper surface and lower surface in U type frame (13), U type frame (13) are equipped with guide ring (15) that are used for restricting tubular product removal orbit towards the one side of placing dish (18), guide ring (15) outer fixed surface is connected with L type pole (14), the one end and elevating platform (26) fixed connection of guide ring (15) are kept away from to L type pole (14).

4. The bending and prefabricating equipment for the aluminum-plastic composite pipe according to claim 1, wherein the bending and prefabricating equipment comprises: the bending mechanism comprises a fixed panel (12), two fixing rings which are sleeved on a middle column (8) and fixedly connected with the middle column (8) are installed on the fixed panel (12), a connecting plate (28) is installed at the upper end of the middle column (8), the connecting plate (28) is of an L-shaped structure, one end, far away from the middle column (8), of the connecting plate (28) is fixedly connected with the fixed panel (12), one face, facing the placing disc (18), of the fixed panel (12) is provided with a through hole (47) used for inserting a pipe, one side, far away from the placing disc (18), of the through hole (47) is provided with a jacking part (34) used for jacking a pipe bending part, a guide rod (32) which is horizontally arranged is fixedly connected onto the jacking part (34), the guide rod (32) penetrates through the fixed panel (12) and one end, far away from the jacking part (34), of the guide rod (32) is connected with a movable end of a first driving part (30) used for controlling the guide rod (32) to move linearly, the first driving part (30) cylinder body end is fixedly connected with the fixed panel (12), an arc-shaped plate (42) used for pressing and holding a pipe fitting is arranged at the lower portion of one side, deviating from the jacking part (34), of the through-insertion hole (47), a fourth driving part (43) used for driving the arc-shaped plate (42) to move up and down is installed at the lower portion of the outer surface of the arc-shaped plate (42), and the cylinder body end of the fourth driving part (43) is fixed on the fixed panel (12).

5. The bending and prefabricating equipment for the aluminum-plastic composite pipe according to claim 4, wherein the bending and prefabricating equipment comprises: the traction mechanism comprises a supporting frame (9), a fixing lug fixedly connected with the supporting frame (9) is positioned between two fixing rings, the fixing lug is sleeved on a middle column (8) and is connected with the middle column (8) in a sliding manner, one end, close to the fixing lug, of the supporting frame (9) is rotatably connected with a driving rod (41), one end, far away from the supporting frame (9), of the driving rod (41) is rotatably connected with a fixing panel (12), one end, close to the fixing panel (12), of the driving rod (41) is rotatably connected with a movable end of a third driving piece (40), a cylinder body end of the third driving piece (40) is fixedly connected with the fixing panel (12), a clamping plate (11) with a cross section shaped like a Chinese character 'ji' is sleeved on the supporting frame (9), and a first screw rod (37) arranged along the length direction of the supporting frame (9) is connected with the clamping plate (11) in a threaded manner, first screw rod (37) one end is rotated with carriage (9) and is connected, first screw rod (37) other end is connected and is used for driving first screw rod (37) pivoted drive arrangement (38), first drive arrangement (38) and carriage (9) fixed connection, slidable mounting has guide bar (39) with first screw rod (37) parallel arrangement on grip block (11), the both ends of guide bar (39) all with carriage (9) fixed connection, two holder (36) that are used for centre gripping tubular product are installed to symmetry in grip block (11), two second driving piece (35) that are used for controlling holder (36) and reciprocate are all installed to holder (36) looks back, second driving piece (35) jar body end and grip block (11) fixed connection.

6. The bending and prefabricating equipment for the aluminum-plastic composite pipe according to claim 1, wherein the bending and prefabricating equipment comprises: the vertical stretching mechanism comprises a first hydraulic cylinder (7) which is vertically arranged, the lower end of the first hydraulic cylinder (7) is fixedly connected with a sliding block (5), the sliding block (5) is connected with a sliding rail (4) in a sliding manner, the sliding rail (4) is fixed on the upper surface of a chassis (1), the sliding block (5) is in threaded connection with a second screw (3) which is arranged in parallel with the sliding rail (4), the two ends of the second screw (3) are rotatably connected with the chassis (1), one end of the second screw (3) is connected with a third driving device which is used for driving the second screw (3) to rotate, the upper end of the first hydraulic cylinder (7) is fixedly connected with a hollow top plate (10), one end, far away from the first hydraulic cylinder (7), of the top plate (10) is hinged with two semicircular clamping plates (46) which are used for clamping pipes, and arc-shaped pressing plates (44) which are used for pressing and holding the semicircular clamping plates (46) are arranged outside the semicircular clamping plates (46), the one end that semicircle splint (46) were kept away from in arc clamp plate (44) rotates with roof (10) to be connected, all install on two parallel sides of roof (10) and be used for driving arc clamp plate (44) pivoted second drive device (45), chassis (1) upper surface mounting has and links to each other communicating hydraulic tank (6) with the hydraulic pump, first pneumatic cylinder (7) link to each other with hydraulic tank (6), hydraulic pump respectively through high-pressure hose and communicate with each other.

7. The bending and prefabricating equipment for the aluminum-plastic composite pipe according to claim 6, wherein the bending and prefabricating equipment comprises: two scissor fork supports (25) rotatably connected with the lifting platform (26) are symmetrically arranged on the lower surface of the lifting platform (26), one end of each scissor fork support (25) far away from the lifting platform (26) is rotatably connected with the chassis (1), the other end of each scissor fork support (25) far away from the lifting platform (26) is rotatably connected with a round bar (22), sliding grooves (23) are formed in two ends of each round bar (22), the sliding grooves (23) are fixed on the upper surface of the chassis (1), strip-shaped grooves (24) arranged along the length direction of the sliding grooves (23) are formed in two parallel sides of each sliding groove (23), the end of each round bar (22) penetrates through the strip-shaped grooves (24), the middle position of each round bar (22) is rotatably connected with a movable end of a second hydraulic cylinder (21), and the cylinder body of the second hydraulic cylinder (21) is rotatably connected to the upper surface of the chassis (1), second pneumatic cylinder (21) link to each other with hydraulic tank (6), hydraulic pump respectively through high-pressure hose and communicate with each other, elevating platform (26) are close to one end fixedly connected with bearing (33) of intermediate column (8), bearing (33) cover is established on intermediate column (8) and with intermediate column (8) sliding connection.

8. The bending and prefabricating equipment for the aluminum-plastic composite pipe according to claim 7, wherein: the computer (27) used for inputting drawings is arranged on the upper surface of the lifting table (26), and an electrical cabinet (20) used for storing a relay and a PLC (programmable logic controller) is installed on one side, far away from the computer (27), of the upper surface of the lifting table (26).

9. The bending and prefabricating equipment for the aluminum-plastic composite pipe according to claim 1, wherein the bending and prefabricating equipment comprises: four edges and corners of the lower surface of the chassis (1) are respectively provided with a universal brake wheel (2).