Integrated prefabricating, assembling and processing device for HDPE (high-density polyethylene) pipeline

Abstract

The invention belongs to the technical field of HDPE pipeline hot melting assembly equipment, and particularly relates to an HDPE pipeline integrated prefabrication assembly machining device which comprises an assembly table, a back plate is fixedly connected to the upper surface of the assembly table, two sealing insertion grooves are formed in the upper surface of the assembly table, and side plates are movably inserted into the groove walls of the sealing insertion grooves in a sealed mode. The rear side walls of the two side plates make sealing contact with the outer wall of the back plate, and symmetrically-distributed pipeline holes are formed in the side walls of the two side plates. The HDPE pipeline integrated prefabrication assembly machining device has the capacity of multi-position butt hot melting assembly, the assembly process is easy and convenient to operate, the convenience and efficiency of HDPE pipeline integrated prefabrication assembly can be effectively improved, meanwhile, the labor intensity of workers is reduced, and the production efficiency is improved. In addition, the device further has the functions of dust prevention, bubble prevention and quality detection at the hot melting assembly position, the quality of integrated prefabrication assembly of the HDPE pipeline is effectively improved, and the reliability and effect of follow-up use of the HDPE pipeline assembly are guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of HDPE pipeline hot melt assembly equipment, in particular to an integrated prefabricated assembly processing device for HDPE pipeline. BACKGROUND

[0002] HDPE pipelines in buildings are often used as pipelines in balconies, kitchens and bathrooms due to their corrosion resistance, impact resistance, long service life and suitability for indoor humid environments. In order to ensure the stable connection of HDPE pipelines in buildings, cope with thermal expansion and contraction, achieve multi-pipeline convergence and facilitate maintenance, it is necessary to hot melt connect fittings such as tee joints, expansion joint sleeves, H four-way joints and inspection ports on HDPE pipelines. HDPE pipeline assembly of these fittings requires the use of hot melt assembly equipment. In this process, the side end of the HDPE pipeline is melted and connected to the corresponding fitting side end through heating, and the interface is sealed tightly to improve the reliability of the drainage system. For example, patent authorization announcement No. CN216300207U discloses a HDPE water supply pipe connecting device.

[0003] With the promotion of fine management in the construction industry and the development of national prefabricated buildings, traditional HDPE pipeline construction technology in buildings has been difficult to meet current needs. Therefore, the industry has shifted from traditional HDPE pipeline construction to integrated prefabrication, that is, cutting, blanking, beveling, hot melt assembly and inspection of HDPE pipelines are completed in the factory according to building dimensions, and prefabricated HDPE pipeline assemblies of uniform specifications are assembled to the corresponding positions in the building. However, there are still problems in the hot melt assembly process of prefabricated HDPE pipeline assemblies for buildings. First, traditional HDPE pipeline hot melt assembly equipment is mostly single-pipe single-side processing mode, which makes hot melt assembly of HDPE pipelines with tee joints, expansion joint sleeves, H four-way joints and inspection ports inconvenient, especially the hot melt assembly of H four-way joints and HDPE pipelines, which requires repeated adjustment and fixation of H four-way joint position, and each time after adjustment and fixation, the side end needs to be heated with a heating plate for hot melt assembly. This makes the hot melt assembly process of HDPE pipeline assemblies for buildings time-consuming and laborious, which not only reduces the convenience and efficiency of prefabricated assembly processing of HDPE pipeline assemblies, but also increases the labor intensity of workers. Second, the current HDPE pipe assembly is processed by hot melt assembly equipment, because the mouth position is in an open environment, small bubbles or pores are easily generated inside the hot melt mouth position of the HDPE pipe, these defects are difficult to be recognized by conventional detection equipment, in the long-term use of the pipe, under the continuous action of internal medium flow friction and impact force, these small bubbles or pores will gradually expand, which may cause damage to the HDPE pipe assembly, and even leakage, which not only affects the quality of the hot melt assembly of the HDPE pipe assembly, but also adversely affects the reliability and effect of the use of the HDPE pipe assembly in the building.

[0004] Therefore, an HDPE pipe integrated prefabrication assembly processing device is proposed to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide an HDPE pipe integrated prefabrication assembly processing device to solve the above problems.

[0006] To achieve the above purpose, the following technical scheme is adopted: an HDPE pipe integrated prefabrication assembly processing device, comprising an assembly table, the upper surface of the assembly table is fixedly connected with a back plate, two sealed insertion grooves are formed in the upper surface of the assembly table, and the groove wall of the sealed insertion groove is movably sealed and inserted with a side plate, the rear wall of the two side plates is in sealing contact with the outer wall of the back plate, the side wall of the two side plates is provided with symmetrically distributed pipe holes, and the hole wall of the pipe hole is fixedly connected with an elastic rubber sealing block; The upper surface of the assembly table is fixedly connected with a pipe clamping mechanism, the bottom end of the pipe clamping mechanism is fixedly connected with a fitting fixing mechanism; The outer wall of the back plate and the side wall of the two side plates are movably and sealingly connected with an L-shaped plate, the lower surface of the vertical part of the L-shaped plate is in sealing contact with the upper surface of the assembly table, the upper surface of the L-shaped plate is fixedly connected with a retraction cover, the inner wall of the retraction cover is movably and sealingly connected with a mouth hot melting mechanism; The upper surface of the assembly table is fixedly connected with a reciprocating mechanism for lifting the L-shaped plate and the mouth hot melting mechanism; The outer walls of the plurality of legs of the assembly table are fixedly connected with a bottom plate, the upper surface of the bottom plate is fixedly connected with a protection and quality inspection mechanism.

[0007] In the above-mentioned HDPE pipeline integrated prefabrication assembly processing device, the pipeline clamping mechanism comprises a support bar fixedly connected with the upper surface of the assembly table, first electric hydraulic rods and two L-shaped limiting rods are fixedly connected on the two sides of the support bar, a moving sleeve is movably connected to the rod wall of the two L-shaped limiting rods, the moving end of the first electric hydraulic rod is fixedly connected with the side wall of the moving sleeve, the bottom end of the vertical part of the L-shaped limiting rod is fixedly connected with the upper surface of the assembly table, a first U-shaped frame is fixedly connected to the upper surface of the moving sleeve, second electric hydraulic rods are fixedly embedded in the two vertical parts of the first U-shaped frame, first connecting strips are fixedly connected to the moving end of the second electric hydraulic rods, and pipeline half clamps are fixedly connected to the outer walls of the two first connecting strips through bolts.

[0008] In the above-mentioned HDPE pipeline integrated prefabrication assembly processing device, two groups of symmetrically distributed support rods are rollingly connected to the top outer wall of the first U-shaped frame, support bearings are fixedly connected to the two ends of the support rods, L-shaped bearing platforms are sleeved to the bottom ends of the support bearings, the bottom end side wall of the L-shaped bearing platform is fixedly connected with the side wall of the first U-shaped frame, and a limiting groove matched with the support bearing is formed in the upper surface of the horizontal part of the L-shaped bearing platform.

[0009] In the above-mentioned HDPE pipeline integrated prefabrication assembly processing device, the accessory fixing mechanism comprises a second U-shaped frame fixedly connected with the upper surface of the support bar, third electric hydraulic rods are fixedly embedded in the two vertical parts of the second U-shaped frame, second connecting strips are fixedly connected to the moving end of the third electric hydraulic rods, and accessory half clamps are fixedly connected to the outer walls of the two second connecting strips through bolts.

[0010] In the above-mentioned HDPE pipeline integrated prefabrication assembly processing device, the matching hot melting mechanism comprises a lifting plate movably connected with the inner wall of the retraction cover, an installation strip is fixedly connected to the lower surface of the lifting plate, a connecting plate is fixedly connected to the lower surface of the installation strip, two symmetrically distributed rectangular adjusting holes are formed in the upper surface of the connecting plate, two electric heating circular plates are movably connected to the hole walls of the rectangular adjusting holes, a limiting frame is fixedly sleeved to the top of the electric heating circular plate, a screw hole is formed in the upper surface of the limiting frame, and a limiting bolt is threadedly connected to the hole wall of the screw hole.

[0011] In the above-mentioned HDPE pipeline integrated prefabrication assembly processing device, telescopic rods are fixedly connected to the top end outer walls of the two electric heating circular plates, and the one end of the telescopic rod away from the electric heating circular plate is fixedly connected with the side wall of the installation strip.

[0012] In the above-mentioned integrated prefabricated assembly processing device for HDPE pipeline, the reciprocating mechanism comprises a fourth electric hydraulic rod fixedly connected with the upper surface of the assembly table, the moving end of the fourth electric hydraulic rod is fixedly connected with a bearing plate, the lower surface of the bearing plate is in movable contact with the upper surface of the back plate, the upper surface of the bearing plate is provided with a through hole, the hole wall of the through hole is fixedly connected with a fifth electric hydraulic rod, the moving end of the fifth electric hydraulic rod penetrates through the top circular hole of the retraction cover and is fixedly connected with the upper surface of the lifting plate.

[0013] In the above-mentioned integrated prefabricated assembly processing device for HDPE pipeline, the protection and quality inspection mechanism comprises a PLC controller and an air suction pump fixedly connected with the upper surface of the bottom plate, the air inlet end of the air suction pump is fixedly communicated with an air inlet three-way reversing electromagnetic valve, the air outlet end of the air suction pump is fixedly communicated with an air outlet three-way reversing electromagnetic valve, the side end air inlet of the air inlet three-way reversing electromagnetic valve is fixedly communicated with an elbow, the top air outlet of the air outlet three-way reversing electromagnetic valve and the top end of the elbow are both fixedly penetrated through the upper surface of the assembly table, one of the outer walls of the side plates is fixedly communicated with an air pressure sensor, the outer wall of the side plate is fixedly connected with an alarm, and the vertical part of the L-shaped plate is fixedly connected with a touch screen control panel.

[0014] Compared with the prior art, the integrated prefabricated assembly processing device for HDPE pipeline has the following advantages: 1. By arranging the pipeline clamping mechanism, the accessory fixing mechanism, the matching hot melting mechanism and the reciprocating mechanism, when the building HDPE pipeline assembly is standardized prefabricated in the factory, the accessories are first placed between the two accessory half clamps for clamping and limiting, then the HDPE pipeline is inserted into the pipeline hole of the side plate and sealed by the elastic rubber sealing block, then the reciprocating mechanism moves the matching hot melting mechanism downward to the position where the HDPE pipeline and the accessory side end, and also pushes the L-shaped plate downward to the assembly table, after the L-shaped plate moves downward, it is in sealing contact with the upper surface of the assembly table, the outer wall of the back plate and the side wall of the side plate, so that the matching hot melting assembly position of the HDPE pipeline and the accessory is in a closed and isolated environment, avoiding the pollution of external dust to the matching hot melting part, then hot melting is carried out, after hot melting is completed, the extrusion force is increased by the moving end of the first electric hydraulic rod, the first electric hydraulic rod drives the HDPE pipeline close to the accessory through the pipeline clamping mechanism to complete the matching hot melting assembly processing, the matching hot melting assembly processing time is 10 seconds, after 10 seconds of processing time, the PLC controller controls the protection and quality inspection mechanism for quality inspection for 3 minutes, which enables the integrated prefabricated assembly processing device for HDPE pipeline to have the ability of multi-position matching hot melting assembly, and the assembly process is simple to operate, which can effectively improve the convenience and efficiency of the integrated prefabricated assembly of the HDPE pipeline, and reduce the labor intensity of the workers.

[0015] 2. Through the provided protection and quality inspection mechanism, within 10 seconds of butt fusion assembly, the PLC controller controls the air extraction pump to operate. The air extraction pump sucks the air inside the L-shaped plate through the top air inlet of the intake three-way reversing solenoid valve, making the butt fusion assembly position of the HDPE pipe and the fitting inside the L-shaped plate in a low-pressure environment. Further, no fine bubbles will be generated at the butt fusion assembly position of the HDPE pipe and the fitting. Even if bubbles are generated, they will be torn and broken by the air pressure in the external negative pressure environment, ensuring the quality of the butt fusion assembly of the side ends of the HDPE pipe and the fitting. This mechanism enables the device to have the functions of dust prevention and anti-bubble at the butt fusion assembly position, effectively improving the quality of the integrated prefabricated assembly of HDPE pipes, as well as ensuring the reliability and effectiveness of the subsequent use of HDPE pipe components.

[0016] 3. Through the provided protection and quality inspection mechanism, within 3 minutes after butt fusion assembly, the PLC controller controls the air extraction pump, the intake three-way reversing solenoid valve, and the outlet three-way reversing solenoid valve to be powered on for 30 seconds. After the intake three-way reversing solenoid valve and the outlet three-way reversing solenoid valve are powered on, their conduction directions change. When the air extraction pump operates, the air extraction pump sucks the external air and injects it into the butt fusion assembly position of the HDPE pipe and the fitting. At the same time, the air pressure sensor also real-time detects the air pressure threshold at the butt fusion assembly position of the HDPE pipe and the fitting. If the air pressure value detected by the air pressure sensor reaches the high air pressure for quality inspection preset by the PLC controller, the PLC controller then controls the air extraction pump and the intake three-way reversing solenoid valve to be powered off, ensuring that the environment inside the L-shaped plate is in a sealed environment. If the air pressure detected by the air pressure sensor gradually decreases within 3 minutes, the PLC controller controls the alarm to sound according to the feedback electrical signal. The alarm reminds the staff that the sealing of the butt fusion assembly position of the HDPE pipe and the fitting is unqualified and there is a leakage situation. If the air pressure does not decrease within 3 minutes, the hot melt butt joint assembly process is qualified, avoiding installing unqualified HDPE pipe components into the building. This mechanism enables the device to have the function of detecting the quality of the butt fusion assembly of HDPE pipes and fittings, ensuring the reliability and effectiveness of the use of HDPE pipe components in the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of an integrated prefabricated assembly processing device for HDPE pipes provided by the present invention; Figure 2 is a schematic structural diagram of the hot melt heating state of the HDPE pipe in an integrated prefabricated assembly processing device for HDPE pipes provided by the present invention; Figure 3 is Figure 2 ing is a schematic structural diagram of the pipe clamping mechanism in an integrated prefabricated assembly processing device for HDPE pipes provided by the present invention; Figure 4 Figure 4 is a schematic structural diagram of the pipe clamping mechanism in an integrated prefabricated assembly processing device for HDPE pipes provided by the present invention; Figure 5 is a structural schematic view of a fitting fixing mechanism in the HDPE pipeline integrated prefabrication and assembly processing device provided by the application; Figure 6 is a structural schematic view of an L-shaped plate part in the HDPE pipeline integrated prefabrication and assembly processing device provided by the application; Figure 7 is a structural schematic view of an L-shaped bearing platform part in the HDPE pipeline integrated prefabrication and assembly processing device provided by the application; Figure 8 is a structural schematic view of a connecting plate part in the HDPE pipeline integrated prefabrication and assembly processing device provided by the application; Figure 9 is a structural schematic view of a sectional view of an elastic rubber sealing block in the HDPE pipeline integrated prefabrication and assembly processing device provided by the application; Figure 10 is a structural schematic view of a state of mouth-to-mouth hot melting assembly in the HDPE pipeline integrated prefabrication and assembly processing device provided by the application; Figure 11 is a structural schematic view of an electric heating round plate in the HDPE pipeline integrated prefabrication and assembly processing device provided by the application.

[0018] In the figure: 1 assembly table, 2 back plate, 3 side plate, 4 elastic rubber sealing block, 5 pipeline clamping mechanism, 51 supporting strip, 52 first electric hydraulic rod, 53 L-shaped limiting rod, 54 moving sleeve, 55 first U-shaped frame, 56 second electric hydraulic rod, 57 first connecting strip, 58 pipeline half clamp, 6 fitting fixing mechanism, 61 second U-shaped frame, 62 third electric hydraulic rod, 63 second connecting strip, 64 fitting half clamp, 7 mouth-to-mouth hot melting mechanism, 71 lifting plate, 72 mounting strip, 73 connecting plate, 74 rectangular adjusting hole, 75 electric heating round plate, 76 limiting frame, 77 limiting bolt, 8 reciprocating mechanism, 81 fourth electric hydraulic rod, 82 bearing plate, 83 fifth electric hydraulic rod, 9 protection and quality inspection mechanism, 91 plc controller, 92 air suction pump, 93 air inlet three-way reversing electromagnetic valve, 94 air outlet three-way reversing electromagnetic valve, 95 elbow pipe, 96 air pressure sensor, 97 alarm, 98 touch screen control panel, 10 L-shaped plate, 11 retraction cover, 12 bottom plate, 13 supporting rod, 14 supporting bearing, 15 L-shaped bearing platform, 16 telescopic rod. DETAILED DESCRIPTION

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1-11 As shown, an integrated prefabrication and assembly processing device for HDPE pipes includes an assembly table 1. A back plate 2 is fixedly connected to the upper surface of the assembly table 1. Two sealing slots are opened on the upper surface of the assembly table 1, and side plates 3 are movably and sealingly inserted into the slot walls. The rear side walls of the two side plates 3 are in sealing contact with the outer wall of the back plate 2. Symmetrically distributed pipe holes are opened on the side walls of the two side plates 3, and elastic rubber sealing blocks 4 are fixedly connected to the hole walls. A pipe clamping mechanism 5 is fixedly connected to the upper surface of the assembly table 1. The pipe clamping mechanism 5 includes a support bar 51 fixedly connected to the upper surface of the assembly table 1. A first electro-hydraulic rod 52 and two L-shaped limiting rods 53 are fixedly connected to both sides of the support bar 51, respectively. The rod walls of the two L-shaped limiting rods 53 are movably sleeved with movable sleeves 54. The movable end of the first electro-hydraulic rod 52 is connected to the movable sleeve 54. The side wall of 4 is fixedly connected, the bottom end of the vertical part of the L-shaped limiting rod 53 is fixedly connected to the upper surface of the assembly table 1, the upper surface of the movable sleeve 54 is fixedly connected to the first U-shaped frame 55, the two vertical parts of the first U-shaped frame 55 are fixedly embedded with the second electric hydraulic rod 56, the moving end of the second electric hydraulic rod 56 is fixedly connected to the first connecting strip 57, the outer walls of the two first connecting strips 57 are fixedly connected to the pipe half clamp 58 by bolts, the top outer wall of the first U-shaped frame 55 is rolledly connected to two sets of symmetrically distributed support rods 13, the two ends of the support rods 13 are fixedly connected to the support bearings 14, the bottom end of the support bearings 14 is sleeved with an L-shaped support 15, the bottom side wall of the L-shaped support 15 is fixedly connected to the side wall of the first U-shaped frame 55, and the upper surface of the horizontal part of the L-shaped support 15 is provided with a limiting groove that cooperates with the support bearings 14.

[0021] The bottom end of the pipe clamping mechanism 5 is fixedly connected to the accessory fixing mechanism 6. The accessory fixing mechanism 6 includes a second U-shaped frame 61 fixedly connected to the upper surface of the support bar 51. A third electric hydraulic rod 62 is fixedly embedded in both vertical parts of the second U-shaped frame 61. A second connecting bar 63 is fixedly connected to the moving end of the third electric hydraulic rod 62. Accessory half clamps 64 are fixedly connected to the outer walls of the two second connecting bars 63 by bolts.

[0022] The outer wall of the back plate 2 and the side walls of the two side plates 3 are sealingly and movably connected with an L-shaped plate 10, the lower surface of the vertical part of the L-shaped plate 10 is in sealing contact with the upper surface of the assembly table 1, the upper surface of the L-shaped plate 10 is fixedly connected with a retractable cover 11, the inner wall of the retractable cover 11 is sealingly and movably connected with a hot-melt mechanism 7, the hot-melt mechanism 7 comprises a lifting plate 71 sealingly and movably connected with the inner wall of the retractable cover 11, the lower surface of the lifting plate 71 is fixedly connected with a mounting strip 72, the lower surface of the mounting strip 72 is fixedly connected with a connecting plate 73, the upper surface of the connecting plate 73 is provided with two symmetrically distributed rectangular adjusting holes 74, and the hole walls of the rectangular adjusting holes 74 are movably connected with two electric heating circular plates 75, the top outer walls of the two electric heating circular plates 75 are fixedly connected with telescopic rods 16, one ends of the telescopic rods 16 away from the electric heating circular plates 75 are fixedly connected with the side walls of the mounting strip 72, the telescopic rods 16 can assist in supporting the electric heating circular plates 75, the top of the electric heating circular plate 75 is fixedly sleeved with a limiting frame 76, the upper surface of the limiting frame 76 is provided with a threaded hole, and the hole wall of the threaded hole is threadedly connected with a limiting bolt 77, this mechanism can realize multi-position hot-melt assembly, effectively improve the convenience and efficiency of HDPE pipe integrated prefabrication, and reduce the labor intensity of workers.

[0023] The upper surface of the assembly table 1 is fixedly connected with a reciprocating mechanism 8 for lifting of the L-shaped plate 10 and the hot-melt mechanism 7, the reciprocating mechanism 8 comprises a fourth electric hydraulic rod 81 fixedly connected with the upper surface of the assembly table 1, the moving end of the fourth electric hydraulic rod 81 is fixedly connected with a bearing plate 82, the lower surface of the bearing plate 82 is in movable contact with the upper surface of the back plate 2, the upper surface of the bearing plate 82 is provided with a through hole, and the hole wall of the through hole is fixedly connected with a fifth electric hydraulic rod 83, the moving end of the fifth electric hydraulic rod 83 passes through the top circular hole of the retractable cover 11 and is fixedly connected with the upper surface of the lifting plate 71, this mechanism can automatically control the lifting of the electric heating circular plate 75 and improve the convenience of equipment use.

[0024] The outer wall of the plurality of supporting legs of the assembling table 1 is fixedly connected with a bottom plate 12, the upper surface of the bottom plate 12 is fixedly connected with a protection and quality inspection mechanism 9, the protection and quality inspection mechanism 9 comprises a PLC controller 91 and an air pump 92 fixedly connected with the upper surface of the bottom plate 12, the air inlet end of the air pump 92 is fixedly communicated with an air inlet three-way reversing electromagnetic valve 93, the air outlet end of the air pump 92 is fixedly communicated with an air outlet three-way reversing electromagnetic valve 94, the side end air inlet of the air inlet three-way reversing electromagnetic valve 93 is fixedly communicated with an elbow pipe 95, the top air outlet of the air outlet three-way reversing electromagnetic valve 94 and the top end of the elbow pipe 95 are both fixedly penetrated through the upper surface of the assembling table 1, the outer wall of one of the side plates 3 is fixedly communicated with an air pressure sensor 96, the outer wall of the side plate 3 is fixedly connected with an alarm 97, and the vertical part of the L-shaped plate 10 is fixedly connected with a touch screen control panel 98, so that the device has the function of quality inspection of HDPE pipeline and accessory butt joint hot melting assembly, and the reliability and effect of the HDPE pipeline assembly used in the building are ensured.

[0025] The operation principle of the present application is described as follows: when the building HDPE pipeline assembly is standardized prefabricated in the factory, first, cut the HDPE pipeline of various sizes according to the building size, and perform beveling treatment on the side end of the HDPE pipeline through the beveling treatment equipment, and then clean the side end of the HDPE pipeline to avoid dust and impurities generated during beveling treatment from interfering with hot melting assembly, and prepare the accessories (three-way joint, expansion joint sleeve, H four-way and inspection port) required for butt joint hot melting assembly of the HDPE pipeline assembly, finally, perform butt joint hot melting assembly of the HDPE pipeline and the accessories, specifically, first, select the pipeline half clamp 58 and the accessory half clamp 64 matched with the accessory and the HDPE pipeline respectively, and install the accessory half clamp 64 on the second connecting strip 63 and the pipeline half clamp 58 on the first connecting strip 57, then adjust the distance between the two electric heating circular plates 75 according to the size of the accessory, so that the distance between the two electric heating circular plates 75 is consistent with the size of the accessory, finally, rotate the limiting bolt 77 connected with the threaded blind hole reserved on the connecting plate 73 to limit the electric heating circular plate 75, then place the accessory to be assembled between the two accessory half clamps 64, and control the two third electric hydraulic rods 62 to work through the touch screen control panel 98 and the PLC controller 91, the two accessory half clamps 64 are driven to approach the accessory through the third electric and the pushing action of the second connecting strip 63, and finally clamp the accessory; After that, the HDPE pipeline assembled with the accessories through hot melting is inserted from the elastic rubber sealing block 4 of the side plate 3, the diameter size of the elastic rubber sealing block 4 is 2 times of the outer diameter of the HDPE pipeline, so that after the HDPE pipeline is assembled with the accessories (three-way pipe, expansion joint and inspection port) through hot melting, the accessories can pass through the side plate 3, so that the side plate 3 is convenient to take out from the HDPE pipeline assembly, the elastic rubber sealing block 4 is stretched due to being pressed by the HDPE pipeline, can be in close contact with the surface of the HDPE pipeline and has a sealing effect, if the elastic rubber sealing block 4 is not stretched by the HDPE pipeline, the center slit position of the elastic rubber sealing block 4 is also in a sealing state due to the influence of the rubber elastic contraction characteristics, then the HDPE pipeline is placed in the pipeline clamping mechanism 5, then the staff controls the moving end of the fourth electric hydraulic rod 81 to move downward through the touch screen control panel 98 and the plc controller 91, the moving end of the fourth electric hydraulic rod 81 drives the bearing plate 82 to move downward, the bearing plate 82 drives the L-shaped plate 10 to move downward through the retraction cover 11, the L-shaped plate 10 moves downward and is in sealing contact with the upper surface of the assembly table 1, the outer wall of the back plate 2 and the side wall of the side plate 3 respectively, so that the HDPE pipeline and the accessories assembled through hot melting are in a closed and isolated environment, avoiding the pollution of external dust to the hot melting part, then the moving end of the fifth electric hydraulic rod 83 is extended through the touch screen control panel 98 and the plc controller 91, the fifth electric hydraulic rod 83 drives the lifting plate 71 to move downward on the inner wall of the retraction cover 11, the lifting plate 71 drives the two electric heating circular plates 75 to move downward through the mounting strip 72 and the connecting plate 73, so that the electric heating circular plates 75 are inserted into the side end of the accessories, at the same time, the staff pushes the HDPE pipeline close to the electric heating circular plates 75, so that the HDPE pipeline is close to the surface of the electric heating circular plates 75, the side end of the HDPE pipeline and the side end of the accessories are close to the surface of the electric heating circular plates 75, and the hot melting effect is ensured, then the electric heating circular plates 75 are controlled to heat and melt the side end of the HDPE pipeline and the side end of the accessories through the touch screen control panel 98 and the plc controller 91, the heating condition is 190-200℃, and the hot melting time is usually based on 10 seconds multiplied by the wall thickness of the HDPE pipeline (if the wall thickness of the HDPE pipeline is 4mm, the hot melting time is 40 seconds); Meanwhile, the two pipe clamping mechanisms 5 are controlled to stably clamp the HDPE pipe by the touch screen control panel 98 and the PLC controller 91, the PLC controller 91 controls the second electric hydraulic rod 56 to move the extension end, the second electric hydraulic rod 56 pushes the pipe half clamp 58 to clamp the HDPE pipe, when the HDPE pipe is heated by the electric heating disc 75, the PLC controller 91 controls the retraction of the fifth electric hydraulic rod 83, drives the lifting plate 71 to move upwards in the retraction cover 11, and drives the electric heating disc 75 to separate from the opposite hot melt assembly position of the HDPE pipe, the electric heating disc 75 is in the retraction cover 11, after the electric heating disc 75 is removed, the PLC controller 91 controls the retraction of the two first electric hydraulic rods 52, the first electric hydraulic rod 52 drives the two moving sleeves 54 to slide on the L-shaped limiting rod 53, the moving sleeve 54 drives the two pipe clamping mechanisms 5 to move towards each other, due to the clamping action of the pipe clamping mechanism 5, the pipe clamping mechanism 5 moving towards each other can drive the HDPE pipe to approach the fitting limited by the fitting fixing mechanism 6, thereby realizing the simultaneous opposite hot melt assembly of the fittings at both ends, the first electric hydraulic rod 52 drives the HDPE pipe to move towards the fitting for 10 seconds through the pipe clamping mechanism 5, due to the retraction of the first electric hydraulic rod 52, the extrusion force provided by the first electric hydraulic rod 52 can ensure that the HDPE pipe and the fitting can be hot melt assembled at the opposite ends, after 10 seconds, the PLC controller 91 controls the protection and quality inspection mechanism 9 to work for 3 minutes, after 3 minutes of quality inspection, the staff releases the clamping constraint of the fitting fixing mechanism 6 and the two pipe clamping mechanisms 5 through the touch screen control panel 98 and the PLC controller 91, and controls the fourth electric hydraulic rod 81 to move upwards, so that the L-shaped plate 10 moves upwards and exposes the processed HDPE pipe assembly, and finally the staff takes out the assembled and processed HDPE pipe assembly and the sealing movable plug-in side plate 3 from the assembly table 1; If the HDPE pipe needs to be installed with an H four-way pipe, the same operation steps are repeated, and the H four-way pipe is stably positioned in the fitting fixing mechanism 6, and the support rod 13 is installed on the two pipe clamping mechanisms 5 to assist in supporting the top HDPE pipe, the support bearing 14 of the support rod 13 is inserted into the limiting groove of the L-shaped bearing platform 15 to achieve the purpose of installing the support rod 13, and then the opposite hot melt assembly steps of the H four-way pipe and the HDPE pipe are the same as those of other fittings, and the purpose of simultaneous opposite hot melt assembly of the four side ends of the double pipes is achieved, and the assembly process saves time and labor, and the HDPE pipe integrated prefabrication assembly device has the ability of multi-position opposite hot melt assembly, and the assembly process is simple to operate, which can effectively improve the convenience and efficiency of the HDPE pipe integrated prefabrication assembly, and reduce the labor intensity of the workers; In the 10 seconds of the above-mentioned hot melt assembly, the PLC controller 91 controls the operation of the air suction pump 92, which sucks the air inside the L-shaped plate 10 through the top air inlet of the air inlet three-way reversing electromagnetic valve 93. Then the air sucked by the air suction pump 92 can be discharged through the side air outlet of the air outlet three-way reversing electromagnetic valve 94. During the process of the air suction pump 92 sucking air through the air inlet three-way reversing electromagnetic valve 93 and the elbow pipe 95, the inside of the L-shaped plate 10 will be in a low-pressure environment, which will further prevent the hot melt assembly position of the HDPE pipe and the fitting from generating small bubbles. Even if bubbles are generated, they will be torn and broken by the air pressure of the external negative pressure environment, ensuring the quality of the hot melt assembly of the side end of the HDPE pipe and the side end of the fitting. At the same time, the air pressure sensor 96 detects the air pressure environment inside the L-shaped plate 10 and converts the air pressure value into an electric signal to send to the PLC controller 91. If the air pressure value detected by the air pressure sensor 96 reaches the low pressure threshold preset by the PLC controller 91, the PLC controller 91 controls the air suction pump 92 to pause air suction, avoiding the deformation and damage of the hot melt assembly position of the HDPE pipe due to the low air pressure inside the L-shaped plate 10, and ensuring the quality of the hot melt assembly of the HDPE pipe. This mechanism makes the HDPE pipe integrated prefabricated assembly processing device have the functions of dust prevention and air bubble prevention at the hot melt assembly position, effectively improves the quality of the integrated prefabricated assembly of the HDPE pipe, and ensures the reliability and effect of the subsequent use of the HDPE pipe assembly; In the 3 minutes after the above-mentioned hot melt assembly, the PLC controller 91 controls the air suction pump 92, the air inlet three-way reversing electromagnetic valve 93 and the air outlet three-way reversing electromagnetic valve 94 to be powered on for 30 seconds. The air inlet three-way reversing electromagnetic valve 93 and the air outlet three-way reversing electromagnetic valve 94 change the air guide direction. When the air suction pump 92 works, the air suction pump 92 sucks external air through the air inlet three-way reversing electromagnetic valve 93, and then the external air is injected into the HDPE pipe and the assembly hot melt assembly through the air outlet three-way reversing electromagnetic valve 94. At the same time, the air pressure sensor 96 also detects the air pressure threshold of the HDPE pipe and the assembly hot melt assembly in real time. If the air pressure value detected by the air pressure sensor 96 reaches the high air pressure threshold set by the PLC controller 91, the PLC controller 91 controls the air suction pump 92 and the air inlet three-way reversing electromagnetic valve 93 to be powered off according to the electrical signal input by the air pressure sensor 96, so as to ensure that the inside of the L-shaped plate 10 is in a sealed environment. If the air pressure of the HDPE pipe and the assembly hot melt assembly is maintained at the preset high air pressure threshold for 3 minutes, it means that the sealing and pressure resistance of the HDPE pipe and the assembly hot melt assembly are qualified. If the air pressure detected by the air pressure sensor 96 gradually decreases within 3 minutes (the air pressure decrease exceeds the specified error range, i.e. the air pressure fluctuation caused by the change of ambient temperature), the PLC controller 91 controls the alarm 97 to alarm according to the feedback electrical signal. The alarm 97 reminds the staff that the HDPE pipe and the assembly hot melt assembly are unqualified and there is a leakage, and the unqualified HDPE pipe assembly needs to be repaired or scrapped to avoid installing unqualified HDPE pipe assemblies in the building. The mechanism ensures the reliability and effect of the HDPE pipe assembly used in the building.

[0026] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A kind of HDPE pipeline integration prefabrication assembly processing device, including assembly table (1), it is characterized in that, The upper surface of the assembly table (1) is fixedly connected with a back plate (2), two sealing slots are formed in the upper surface of the assembly table (1), and the slot walls of the sealing slots are movably and sealingly inserted with side plates (3), the rear walls of the two side plates (3) are sealingly in contact with the outer wall of the back plate (2), the side walls of the two side plates (3) are each provided with symmetrically distributed pipeline holes, and the hole walls of the pipeline holes are fixedly connected with elastic rubber sealing blocks (4); The upper surface of the assembly table (1) is fixedly connected with a pipeline clamping mechanism (5), and the bottom end of the pipeline clamping mechanism (5) is fixedly connected with a fitting fixing mechanism (6); The outer wall of the back plate (2) and the side walls of the two side plates (3) are movably and sealingly connected with an L-shaped plate (10), the lower surface of the vertical part of the L-shaped plate (10) is in sealing contact with the upper surface of the assembly table (1), the upper surface of the L-shaped plate (10) is fixedly connected with a retraction cover (11), and the inner wall of the retraction cover (11) is movably and sealingly connected with a counter hot melting mechanism (7); The upper surface of the assembly table (1) is fixedly connected with a reciprocating mechanism (8) for lifting the L-shaped plate (10) and the counter hot melting mechanism (7); The outer walls of the plurality of supporting legs of the assembly table (1) are fixedly connected with a bottom plate (12), and the upper surface of the bottom plate (12) is fixedly connected with a protection and quality inspection mechanism (9).

2. The integrated prefabrication and assembly processing device for HDPE pipes according to claim 1, characterized in that, The pipeline clamping mechanism (5) comprises a supporting strip (51) fixedly connected with the upper surface of the assembly table (1), first electric hydraulic rods (52) and two L-shaped limiting rods (53) are fixedly connected with the two sides of the supporting strip (51), respectively, a moving sleeve (54) is movably sleeved with the rod walls of the two L-shaped limiting rods (53), the moving end of the first electric hydraulic rod (52) is fixedly connected with the side wall of the moving sleeve (54), the bottom end of the vertical part of the L-shaped limiting rod (53) is fixedly connected with the upper surface of the assembly table (1), the upper surface of the moving sleeve (54) is fixedly connected with a first U-shaped frame (55), second electric hydraulic rods (56) are fixedly embedded in the two vertical parts of the first U-shaped frame (55), respectively, the moving end of each second electric hydraulic rod (56) is fixedly connected with a first connecting strip (57), and the outer walls of the two first connecting strips (57) are fixedly connected with pipeline half clamps (58) through bolts.

3. The integrated pre-fabrication assembly processing device for HDPE pipes according to claim 2, characterized in that, The top outer wall of the first U-shaped frame (55) is rollingly connected with two groups of symmetrically distributed supporting rods (13), supporting bearings (14) are fixedly connected with the two ends of each supporting rod (13), an L-shaped bearing platform (15) is sleeved with the bottom end of each supporting bearing (14), the bottom end side wall of the L-shaped bearing platform (15) is fixedly connected with the side wall of the first U-shaped frame (55), and a limiting groove matched with the supporting bearing (14) is formed in the upper surface of the horizontal part of the L-shaped bearing platform (15).

4. The integrated pre-fabrication and assembly processing device for HDPE pipes according to claim 1, characterized in that, The accessory fixing mechanism (6) comprises a second U-shaped frame (61) fixedly connected with the upper surface of the supporting strip (51), the two vertical parts of the second U-shaped frame (61) are fixedly embedded with third electric hydraulic rods (62), the moving end of the third electric hydraulic rod (62) is fixedly connected with a second connecting strip (63), and the outer wall of the two second connecting strips (63) is fixedly connected with accessory half clamps (64) through bolts.

5. The integrated pre-fabrication assembly processing device for HDPE pipes according to claim 1, characterized in that, The mouth-to-mouth hot melting mechanism (7) comprises a lifting plate (71) movably connected with the inner wall of the retraction cover (11), the lower surface of the lifting plate (71) is fixedly connected with a mounting strip (72), the lower surface of the mounting strip (72) is fixedly connected with a connecting plate (73), the upper surface of the connecting plate (73) is provided with two symmetrically distributed rectangular adjusting holes (74), the hole wall of the rectangular adjusting hole (74) is movably connected with two electric heating circular plates (75), the top of the electric heating circular plate (75) is fixedly sleeved with a limiting frame (76), the upper surface of the limiting frame (76) is provided with a threaded hole, and the hole wall of the threaded hole is threadedly connected with a limiting bolt (77).

6. The integrated pre-fabrication and assembly processing device for HDPE pipes according to claim 5, characterized in that, The top outer wall of the two electric heating circular plates (75) is fixedly connected with an extension rod (16), and the end of the extension rod (16) away from the electric heating circular plate (75) is fixedly connected with the side wall of the mounting strip (72).

7. The integrated pre-fabrication and assembly processing device for HDPE pipes according to claim 5, characterized in that, The reciprocating mechanism (8) comprises a fourth electric hydraulic rod (81) fixedly connected with the upper surface of the assembly table (1), the moving end of the fourth electric hydraulic rod (81) is fixedly connected with a bearing plate (82), the lower surface of the bearing plate (82) is movably in contact with the upper surface of the back plate (2), the upper surface of the bearing plate (82) is provided with a through hole, the hole wall of the through hole is fixedly connected with a fifth electric hydraulic rod (83), the moving end of the fifth electric hydraulic rod (83) passes through the top circular hole of the retraction cover (11) and is fixedly connected with the upper surface of the lifting plate (71).

8. The integrated pre-fabrication assembly processing device for HDPE pipes according to claim 1, characterized in that, The protection and quality inspection mechanism (9) comprises a PLC controller (91) and an air suction pump (92) fixedly connected with the upper surface of the bottom plate (12), the air inlet end of the air suction pump (92) is fixedly communicated with an air inlet three-way reversing electromagnetic valve (93), the air outlet end of the air suction pump (92) is fixedly communicated with an air outlet three-way reversing electromagnetic valve (94), the side end air inlet of the air inlet three-way reversing electromagnetic valve (93) is fixedly communicated with an elbow (95), the top air outlet of the air outlet three-way reversing electromagnetic valve (94) and the top end of the elbow (95) are fixedly passed through the upper surface of the assembly table (1), one of the outer walls of the side plates (3) is fixedly communicated with an air pressure sensor (96), the outer wall of the side plate (3) is fixedly connected with an alarm (97), and the vertical part of the L-shaped plate (10) is fixedly connected with a touch screen control panel (98).

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