Forming device for producing PP pipe

Abstract

The invention belongs to the technical field of plastic pipe forming and processing, and discloses a forming device for producing PP pipes, which is technically characterized by comprising a workbench, a vertical plate is fixedly mounted on the surface of the workbench, a bearing column is rotatably mounted on the surface of the vertical plate, and a bearing disc is fixedly mounted at one end of the bearing column; a plurality of groups of bearing pipes are rotatably mounted on the surface of the bearing disc, supporting pieces are arranged on the surfaces of the bearing pipes, a positioning mechanism is arranged on the surface of the vertical plate and comprises a rotating assembly, an inertia preventing assembly and an autorotation assembly, a cooling mechanism is arranged on the surface of the vertical plate, and the cooling mechanism comprises an outer spraying assembly and an inner spraying assembly. The problems that at present, only the outer side of a pipeline can be sprayed, the position of the PP pipe cannot be adjusted in the cooling process, and consequently the overall cooling forming efficiency of the PP pipe is low are solved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic pipe forming and processing, in particular to a forming device for producing PP pipes. Background Art

[0002] Polypropylene, abbreviated as PP, is a semi-crystalline thermoplastic. Polypropylene has high impact resistance, strong mechanical properties, and resistance to corrosion by many organic solvents and acids and alkalis. It is widely used in industry and is a very common polymer material.

[0003] The manufacturing process of PP pipe mainly adopts extrusion molding technology. The process includes heating polypropylene particles to a molten state, and then extruding the molten polypropylene through the screw of the extruder. After the PP pipe is extruded, it needs to be cooled down. At present, it is mainly cooled down by spraying cooling water on the outside of the PP pipe.

[0004] When cooling the PP pipe in the existing method, generally only the outside of the pipe can be sprayed, and the inner cavity of the pipe cannot be sprayed and cooled simultaneously. In addition, the position of the PP pipe cannot be adjusted during the cooling process, resulting in low overall cooling and molding efficiency of the PP pipe. Summary of the invention

[0005] The object of the present invention is to provide a forming device for producing PP pipes to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A forming device for producing PP pipes, comprising a workbench, an extruder is arranged on the surface of the workbench, a discharging die is arranged at the end of the extruder, a vertical plate located on one side of the extruder is fixedly installed on the surface of the workbench, a bearing column is rotatably installed on the surface of the vertical plate, a bearing plate is fixedly installed on the end of the bearing column facing the extruder, a plurality of groups of bearing tubes distributed in an annular shape and at equal intervals are rotatably installed on the surface of the bearing plate, a support is arranged on the surface of the bearing tube, the support is used to position the PP pipe delivered by the extruder outside the bearing tube, a positioning mechanism is arranged on the surface of the vertical plate, the positioning mechanism includes a rotating component, an anti-inertia component and a self-rotating component, the rotating component is located on the side wall of the vertical plate and is connected to the bearing column, and the rotating component is used to control the equal intervals of the bearing column The rotation of the bearing plate and the bearing tube drives the bearing plate to rotate synchronously at a certain angle, and the anti-inertia component is located between the bearing plate and the vertical plate. When the rotating component controls the bearing column to stop rotating, the anti-inertia component is used to control the bearing plate to stop rotating synchronously at an accurate position so that a group of bearing tubes are aligned with the discharge mold. The self-rotation component is connected to the bearing tube. When the bearing plate drives the bearing tube to rotate, the self-rotation component controls the bearing tube to rotate synchronously around its own axis. A cooling mechanism is provided on the surface of the vertical plate, and the cooling mechanism includes an external spray component and an internal spray component. The external spray component is located on the side wall of the vertical plate, and the external spray component is used to spray water on the outer surface of the PP pipe to cool it down. The internal spray component is located in the bearing plate and is connected to the bearing tube. The internal spray component is used to spray water on the inner cavity of the PP pipe to cool it down.

[0008] As a further solution of the present invention: the support member includes a plurality of groups of support rods fixedly installed on the surface of the support tube and distributed in an annular shape, and a roller is rotatably installed on one end of the support rod away from the support tube.

[0009] As a further solution of the present invention: the rotating assembly includes a positioning gear disk fixedly installed at one end of the bearing column away from the bearing disk, the side wall of the vertical plate is fixedly installed with a motor, the output shaft of the motor is fixedly installed with a transmission disk, and the side wall of the transmission disk is fixedly installed with a rack meshing with the positioning gear disk.

[0010] As a further solution of the present invention: the anti-inertia component includes a plurality of first magnetic blocks distributed in a ring shape and at equal intervals and fixedly installed on one side wall of the supporting plate facing the vertical plate, and a plurality of second magnetic blocks cooperating with the first magnetic blocks are fixedly installed on one side wall of the vertical plate facing the supporting plate.

[0011] As a further solution of the present invention: the self-rotating assembly includes an annular gear ring fixedly installed on the side wall of the vertical plate, the supporting tube extends to the outside of the supporting plate at one end toward the vertical plate and is fixedly installed with a fixed gear plate, and the fixed gear plate is meshingly connected with the gear ring.

[0012] As a further solution of the present invention: the external spray assembly includes a spray pipe fixedly installed on the side wall of the vertical plate and located above the supporting plate, a plurality of groups of evenly distributed nozzles are arranged on the surface of the spray pipe, a first pump is fixedly installed on the side wall of the vertical plate, the first pump is connected to the spray pipe through a conduit, and the water pumping end of the first pump is connected to the external water tank.

[0013] As a further solution of the present invention: the internal spray assembly includes a plurality of groups of evenly distributed water spray holes opened on the surface of the supporting tube, the water spray holes are connected to the inner cavity of the supporting tube, a water storage cavity is opened inside the supporting plate, a plurality of water inlets are opened on the side wall of the supporting tube, the water inlets are connected to the water storage cavity, a diversion hole connected to the water storage cavity is opened inwardly at the end of the supporting column, a second pump is fixedly installed on the side wall of the vertical plate, a water injection pipe is fixedly installed on the surface of the second pump, an end of the water injection pipe away from the second pump is connected to the diversion hole, and the water pumping end of the second pump is connected to an external water tank.

[0014] As a further solution of the present invention: the surface of the workbench is provided with a water collecting chamber located below the supporting tube.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting a positioning mechanism composed of a rotating component, an anti-inertia component, and a self-rotating component to cooperate with the supporting member, the position angle of the PP pipe can be conveniently adjusted on the surface of the bearing pipe, which is convenient for all-round water spraying and cooling of the PP pipe; by setting an external spray component to cooperate with an internal spray component, the inside and outside of the PP pipe can be synchronously sprayed and cooled, effectively improving the cooling speed of the PP pipe. This solves the problem that only the outside of the pipe can be sprayed, and the position of the PP pipe cannot be adjusted during the cooling process, resulting in low overall cooling and molding efficiency of the PP pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a forming device for producing PP pipes provided in an embodiment of the present invention Figure 1 .

[0017] Figure 2 A schematic diagram of the three-dimensional structure of a forming device for producing PP pipes provided in an embodiment of the present invention Figure 2 .

[0018] Figure 3 This is a schematic diagram of the main structure of a molding device for producing PP pipes provided in an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of a vertical plate and its connection structure in a forming device for producing PP pipes provided in an embodiment of the present invention.

[0020] Figure 5This is a schematic diagram of a supporting plate and its connection structure in a molding device for producing PP pipes provided in an embodiment of the present invention.

[0021] Figure 6 It is a schematic diagram of the internal cross-sectional structure of a carrying plate in a molding device for producing PP pipes provided in an embodiment of the present invention.

[0022] Figure 7 for Figure 3 Schematic diagram of the enlarged structure of A.

[0023] Among them: 1-workbench, 2-extruder, 21-discharging mold, 3-vertical plate, 31-bearing column, 32-bearing plate, 4-bearing tube, 5-support, 51-support rod, 52-roller, 6-positioning mechanism, 61-rotation component, 611-positioning gear disc, 612-motor, 613-transmission disc, 614-rack, 62-anti-inertia component, 621-first magnetic block, 622-second magnetic block, 63-rotation component, 631-fixed gear disc, 632-gear ring, 7-cooling mechanism, 71-external spray component, 711-spray pipe, 712-nozzle, 713-first pump, 72-inner spray component, 721-water spray hole, 722-water storage chamber, 723-water inlet, 724-diversion hole, 725-second pump, 726-water injection pipe, 8-water collecting chamber. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0025] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0026] like Figure 1 , Figure 2 , Figure 3As shown, it is a structural diagram of a forming device for producing PP pipes provided by an embodiment of the present invention, comprising a workbench 1, an extruder 2 is arranged on the surface of the workbench 1, a discharge mold 21 is arranged at the end of the extruder 2, a vertical plate 3 located on one side of the extruder 2 is fixedly installed on the surface of the workbench 1, a bearing column 31 is rotatably installed on the surface of the vertical plate 3, a bearing disc 32 is fixedly installed on the end of the bearing column 31 facing the extruder 2, a plurality of groups of bearing tubes 4 distributed in an annular shape and at equal intervals are rotatably installed on the surface of the bearing disc 32, a support member 5 is arranged on the surface of the bearing tube 4, and the support member 5 is used to position the PP pipe delivered by the extruder 2 on the outside of the bearing tube 4, a positioning mechanism 6 is arranged on the surface of the vertical plate 3, and the positioning mechanism 6 includes a rotating component 61, an anti-inertia component 62 and a self-rotation component 63, the rotating component 61 is located on the side wall of the vertical plate 3 and is connected to the bearing column 31, and the rotating component 61 is used to control The bearing columns 31 rotate at equal intervals by a certain angle, thereby driving the bearing plate 32 and the bearing tube 4 to rotate synchronously by a certain angle. The anti-inertia component 62 is located between the bearing plate 32 and the vertical plate 3. When the rotating component 61 controls the bearing column 31 to stop rotating, the anti-inertia component 62 is used to control the bearing plate 32 to stop rotating synchronously at an accurate position so that a group of bearing tubes 4 are aligned with the discharge mold 21. The self-rotation component 63 is connected to the bearing tube 4. When the bearing plate 32 drives the bearing tube 4 to rotate, the self-rotation component 63 controls the bearing tube 4 to rotate synchronously around its own axis. A cooling mechanism 7 is provided on the surface of the vertical plate 3. The cooling mechanism 7 includes an external spray component 71 and an internal spray component 72. The external spray component 71 is located on the side wall of the vertical plate 3. The external spray component 71 is used to spray water on the outer surface of the PP pipe to cool it down. The internal spray component 72 is located in the bearing plate 32 and is connected to the bearing tube 4. The internal spray component 72 is used to spray water on the inner cavity of the PP pipe to cool it down.

[0027] When in use, plastic particles are put into the extruder 2, and the extruder 2 hot-melts the plastic particles and extrudes them into shape. The formed PP pipe is removed from the end of the discharge mold 21, and the PP pipe is inserted to the outside of the supporting tube 4. The support member 5 can stably support and position the PP pipe on the surface of the supporting tube 4. After a single extrusion molding is completed, the rotating component 61 cooperates with the anti-inertia component 62 to control the supporting column 31 to rotate a certain angle, and the supporting column 31 drives the supporting plate 32 and the supporting tube 4 to rotate synchronously at a certain angle, so that another group of supporting tubes 4 are aligned with the discharge mold 21 again. After the alignment is re-aligned, the extruder 2 pushes out the formed PP pipe again, and this is repeated, and the formed PP pipes can be positioned on the surfaces of multiple groups of supporting tubes 4 in turn. When the support tube 4 supports and positions the PP pipe, the outer spray assembly 71 can spray water on the outer surface of the PP pipe, and the inner spray assembly 72 can spray water on the inner cavity of the PP pipe, effectively improving the cooling speed of the PP pipe. During spraying and cooling, the support plate 32 drives the support tube 4 to rotate, while the rotation assembly 63 controls the support tube 4 to rotate along its own axis. The support tube 4 cooperates with the support member 5 to synchronously adjust the position angle of the PP pipe, so that the spray water is in full contact with the surface of the PP pipe, effectively improving the cooling efficiency. When the support tube 4 rotates to the lowest point, the support member 5 cooperates with the support tube 4 to conveniently pull the cooled PP pipe out from the outside of the support tube 4.

[0028] like Figure 1 , Figure 5 , Figure 6 As shown, as a preferred embodiment of the present invention, the support member 5 includes a plurality of groups of support rods 51 distributed in an annular shape and fixedly installed on the surface of the support tube 4, and a roller 52 is rotatably installed at one end of the support rods 51 away from the support tube 4.

[0029] The formed PP pipe is moved out from the end of the discharge mold 21, and the PP pipe is inserted to the outside of the supporting tube 4. At this time, multiple groups of support rods 51 are in the inner cavity of the PP pipe, and the rollers 52 are directly in contact with the inner wall of the PP pipe. The support rods 51 and the rollers 52 cooperate with each other, and the PP pipe can be stably supported and positioned on the outside of the supporting tube 4, and the PP pipe can be pushed to move on the surface of the supporting tube 4.

[0030] like Figure 2 , Figure 3 , Figure 6 As shown, as a preferred embodiment of the present invention, the rotating assembly 61 includes a positioning gear plate 611 fixedly installed at one end of the supporting column 31 away from the supporting plate 32, a motor 612 is fixedly installed on the side wall of the vertical plate 3, a transmission plate 613 is fixedly installed on the output shaft of the motor 612, and a rack 614 meshing with the positioning gear plate 611 is fixedly installed on the side wall of the transmission plate 613.

[0031] The PP pipe is inserted to the outside of the supporting tube 4, and the support member 5 can stably support and position the PP pipe on the surface of the supporting tube 4. After a single extrusion molding is completed, the motor 612 drives the transmission disk 613 to rotate, and the transmission disk 613 drives the rack 614 to rotate synchronously. The rack 614 contacts and engages with the positioning toothed disk 611 for transmission, thereby driving the supporting column 31 to rotate a certain angle. The supporting column 31 drives the supporting disk 32 and the supporting tube 4 to rotate a certain angle synchronously, and the rack 614 and the positioning toothed disk 611 are separated from each other. The anti-inertia component 62 can control the supporting column 31 and the supporting disk 32 to stop rotating in time. At this time, another group of supporting tubes 4 can be aligned with the discharge mold 21, which is convenient for supporting and positioning the extruded PP pipe again.

[0032] like Figure 3 , Figure 4 , Figure 5 , Figure 7 As shown, as a preferred embodiment of the present invention, the anti-inertia component 62 includes a plurality of groups of first magnetic blocks 621 distributed in a ring shape and at equal intervals and fixedly installed on one side wall of the supporting plate 32 facing the vertical plate 3, and a plurality of groups of second magnetic blocks 622 cooperating with the first magnetic blocks 621 are fixedly installed on one side wall of the vertical plate 3 facing the supporting plate 32.

[0033] The rack 614 is in contact with the positioning toothed disc 611 and meshes with the transmission, thereby driving the supporting disc 32 to rotate a certain angle. The supporting disc 32 drives the first magnetic block 621 to rotate synchronously. At this time, the first magnetic block 621 and the second magnetic block 622 are separated from each other. After the rack 614 and the positioning toothed disc 611 are separated from each other, multiple groups of first magnetic blocks 621 are in contact with multiple groups of second magnetic blocks 622 respectively. The first magnetic block 621 and the second magnetic block 622 are connected into a whole through magnetic attraction. At this time, the supporting disc 32 and the supporting column 31 can stop rotating in time, thereby aligning a group of supporting tubes 4 with the discharge mold 21.

[0034] like Figure 3 , Figure 4 , Figure 5 , Figure 7 As shown, as a preferred embodiment of the present invention, the self-rotating assembly 63 includes an annular gear ring 632 fixedly installed on the side wall of the vertical plate 3, and the supporting tube 4 extends to the outside of the supporting plate 32 toward one end of the vertical plate 3 and is fixedly installed with a fixed gear plate 631, and the fixed gear plate 631 is meshingly connected with the gear ring 632.

[0035] When the supporting plate 32 drives the supporting tube 4 to rotate, the supporting tube 4 drives the fixed gear plate 631 to rotate synchronously. At this time, the fixed gear plate 631 rolls along the surface of the gear ring 632. The fixed gear plate 631 drives the supporting tube 4 to rotate while rotating. The supporting tube 4 drives the outer PP pipe to rotate synchronously. The sprayed cooling water can be evenly distributed on the surface of the PP pipe, effectively improving the cooling efficiency.

[0036] like Figure 1 , Figure 2 , Figure 4 As shown, as a preferred embodiment of the present invention, the external spray assembly 71 includes a spray pipe 71 fixedly installed on the side wall of the vertical plate 3 and located above the supporting plate 32, and a plurality of groups of evenly distributed nozzles 712 are arranged on the surface of the spray pipe 71, and a first pump 713 is fixedly installed on the side wall of the vertical plate 3, and the first pump 713 is connected to the spray pipe 71 through a conduit, and the water pumping end of the first pump 713 is connected to the external water tank.

[0037] When the supporting pipe 4 supports and positions the PP pipe, the first pump 713 delivers cooling water to the spray pipe 71, and the spray pipe 71 evenly sprays the cooling water onto the surface of the PP pipe through the nozzle 712, thereby cooling the PP pipe.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 As shown, as a preferred embodiment of the present invention, the internal spray assembly 72 includes a plurality of groups of evenly distributed water spray holes 721 opened on the surface of the supporting tube 4, the water spray holes 721 are connected to the inner cavity of the supporting tube 4, a water storage cavity 722 is opened inside the supporting plate 32, a plurality of groups of water inlets 723 are opened on the side wall of the supporting tube 4, the water inlets 723 are connected to the water storage cavity 722, a guide hole 724 connected to the water storage cavity 722 is opened inwardly at the end of the supporting column 31, a second pump 725 is fixedly installed on the side wall of the vertical plate 3, a water injection pipe 726 is fixedly installed on the surface of the second pump 725, the end of the water injection pipe 726 away from the second pump 725 is connected to the guide hole 724, and the water pumping end of the second pump 725 is connected to the external water tank.

[0039] When the supporting tube 4 supports and positions the PP pipe, the second pump 725 delivers the cooling water at high pressure to the guide hole 724 and further to the water storage chamber 722. The cooling water in the water storage chamber 722 flows into the supporting tube 4 through the water inlet 723. The cooling water in the supporting tube 4 passes through the water spray hole 721 and is evenly sprayed into the inner cavity of the PP pipe, which can efficiently dissipate heat and cool the inner cavity of the PP pipe.

[0040] like Figure 1 , Figure 2 As shown, as a preferred embodiment of the present invention, the surface of the workbench 1 is provided with a water collecting chamber 8 located below the supporting tube 4. The water collecting chamber 8 can collect the excess dripping cooling water for reuse.

[0041] The working principle of the present invention is: when in use, plastic particles are put into the extruder 2, the extruder 2 performs hot-melt processing on the plastic particles and extrude them into shape, the formed PP pipe is moved out from the end of the discharge mold 21, and the PP pipe is inserted to the outside of the supporting tube 4. At this time, multiple groups of support rods 51 are in the inner cavity of the PP pipe, and the roller 52 directly contacts the inner wall of the PP pipe. The support rods 51 and the rollers 52 cooperate with each other, and the PP pipe can be stably supported and positioned on the outside of the supporting tube 4, and the PP pipe can be pushed to move on the surface of the supporting tube 4.

[0042] After a single extrusion molding is completed, the motor 612 drives the transmission disc 613 to rotate, and the transmission disc 613 drives the rack 614 to rotate synchronously. The rack 614 contacts and meshes with the positioning toothed disc 611, and then drives the bearing column 31 to rotate a certain angle. The bearing column 31 drives the bearing disc 32 and the bearing tube 4 to rotate synchronously at a certain angle. The rack 614 and the positioning toothed disc 611 are separated from each other. At this time, multiple groups of first magnetic blocks 621 are respectively in contact with multiple groups of second magnetic blocks 622. The first magnetic blocks 621 and the second magnetic blocks 622 are connected as a whole through magnetic attraction. At this time, the bearing disc 32 and the bearing column 31 can stop rotating in time, so that another group of bearing tubes 4 are aligned with the discharge mold 21. After alignment again, the extruder 2 pushes out the formed PP pipe again, and this is repeated, and the formed PP pipes can be positioned on the surfaces of multiple groups of bearing tubes 4 in turn.

[0043] When the support pipe 4 supports and positions the PP pipe, the first pump 713 delivers cooling water to the spray pipe 71, and the spray pipe 71 sprays the cooling water evenly onto the surface of the PP pipe through the nozzle 712, so as to cool the PP pipe. The second pump 725 delivers the cooling water to the guide hole 724 at high pressure and further to the water storage chamber 722. The cooling water in the water storage chamber 722 flows into the support pipe 4 through the water inlet 723. The cooling water in the support pipe 4 passes through the water spray hole 721 and then sprays evenly onto the inner cavity of the PP pipe, so as to efficiently dissipate heat and cool the inner cavity of the PP pipe. When spraying and cooling, while the support plate 32 drives the support pipe 4 to rotate, the fixed toothed disc 631 rolls along the surface of the gear ring 632, and the fixed toothed disc 631 drives the support pipe 4 to rotate while rotating, and the support pipe 4 drives the outer PP pipe to rotate synchronously, and the sprayed cooling water can be evenly distributed on the surface of the PP pipe, effectively improving the cooling efficiency.

[0044] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A forming device for producing PP pipes, comprising a workbench, an extruder is arranged on the surface of the workbench, and a discharge die is arranged at the end of the extruder, characterized in that: A vertical plate located on one side of the extruder is fixedly installed on the surface of the workbench, a bearing column is rotatably installed on the surface of the vertical plate, a bearing plate is fixedly installed on one end of the bearing column facing the extruder, and a plurality of groups of bearing tubes distributed in an annular shape with equal spacing are rotatably installed on the surface of the bearing plate; The surface of the support tube is provided with a support member, and the support member is used to position the PP pipe delivered by the extruder outside the support tube; The surface of the vertical plate is provided with a positioning mechanism, and the positioning mechanism includes a rotating component, an anti-inertia component and a self-rotating component; The rotating assembly is located on the side wall of the vertical plate and connected to the bearing column. The rotating assembly is used to control the bearing column to rotate at equal intervals at a certain angle, thereby driving the bearing plate and the bearing tube to rotate synchronously at a certain angle; The anti-inertia component is located between the bearing plate and the vertical plate. When the rotating component controls the bearing column to stop rotating, the anti-inertia component is used to control the bearing plate to stop rotating synchronously at an accurate position so that a group of bearing tubes are aligned with the discharge mold. The self-rotating assembly is connected to the carrying tube, and when the carrying plate drives the carrying tube to rotate, the self-rotating assembly controls the carrying tube to rotate synchronously around its own axis; A cooling mechanism is provided on the surface of the vertical plate, and the cooling mechanism includes an external spray component and an internal spray component. The external spray component is located on the side wall of the vertical plate, and is used to spray water on the outer surface of the PP pipe to cool it down. The internal spray component is located in the supporting plate and is connected to the supporting pipe, and the internal spray component is used to spray water on the inner cavity of the PP pipe to cool it down.

2. A forming device for producing PP pipes according to claim 1, characterized in that: The support member comprises a plurality of groups of support rods which are fixedly mounted on the surface of a bearing tube and are distributed in an annular shape. A roller is rotatably mounted on one end of the support rods which is away from the bearing tube.

3. A forming device for producing PP pipes according to claim 1, characterized in that: The rotating assembly includes a positioning gear plate fixedly installed at one end of the bearing column away from the bearing plate, a motor fixedly installed on the side wall of the vertical plate, a transmission plate fixedly installed on the output shaft of the motor, and a rack meshing with the positioning gear plate fixedly installed on the side wall of the transmission plate.

4. A forming device for producing PP pipes according to claim 1, characterized in that: The anti-inertia component includes a plurality of first magnetic blocks fixedly mounted on a side wall of the carrier plate facing the vertical plate and distributed in an annular shape with equal spacing, and a plurality of second magnetic blocks cooperating with the first magnetic blocks are fixedly mounted on a side wall of the vertical plate facing the carrier plate.

5. A forming device for producing PP pipes according to claim 1, characterized in that: The self-rotating assembly includes an annular gear ring fixedly installed on the side wall of the vertical plate. The end of the supporting tube toward the vertical plate extends to the outside of the supporting plate and is fixedly installed with a fixed gear plate, which is meshed and connected with the gear ring.

6. A forming device for producing PP pipes according to claim 1, characterized in that: The external spray assembly includes a spray pipe fixedly installed on the side wall of the vertical plate and located above the supporting plate, and a plurality of groups of evenly distributed nozzles are arranged on the surface of the spray pipe. A first pump is fixedly installed on the side wall of the vertical plate, and the first pump is connected to the spray pipe through a conduit, and the water pumping end of the first pump is connected to the external water tank.

7. A forming device for producing PP pipes according to claim 1, characterized in that: The internal spray assembly includes a plurality of groups of evenly distributed water spray holes opened on the surface of the supporting tube, the water spray holes are connected to the inner cavity of the supporting tube, a water storage cavity is opened inside the supporting plate, a plurality of water inlets are opened on the side wall of the supporting tube, the water inlets are connected to the water storage cavity, a guide hole connected to the water storage cavity is opened inwardly at the end of the supporting column, a second pump is fixedly installed on the side wall of the vertical plate, a water injection pipe is fixedly installed on the surface of the second pump, an end of the water injection pipe away from the second pump is connected to the guide hole, and the water pumping end of the second pump is connected to the external water tank.

8. A forming device for producing PP pipes according to claim 1, characterized in that: The surface of the workbench is provided with a water collecting chamber located below the supporting tube.

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