Compaction mechanism and method for structural wall tube core mandrel wound polyethylene

Abstract

The application discloses a structure wall pipe core mould polyethylene winding pressing mechanism and method, and belongs to the field of pipe manufacturing equipment. The structure wall pipe core mould polyethylene winding pressing mechanism comprises a rack, a support hinged to one end of the rack, and a plurality of first air cylinders hinged to the lower end of the support and the rack. A pressing roller, a material supporting roller and a guide roller are arranged in the support. The pressing roller comprises a first hollow shaft, two end portions of the first hollow shaft are connected with the support through first bearing seats, two top plates are fixedly connected with the first hollow shaft at intervals, a cylindrical air bag is arranged on the first hollow shaft, two end portions of the air bag are fixedly connected with the two top plates, an air inlet hole is formed in the first hollow shaft, one end of the first hollow shaft is closed, the other end is connected with an air source through a first rotary joint and an air inlet pipe, and a stop valve is arranged on the air inlet pipe. The application is used for solving the problem that residual material of a material belt enters a gap of a pressing wheel and causes a clamp plate, thereby causing pressing failure.

Description

TECHNICAL FIELD

[0001] The present application relates to a structure wall pipe core mold winding polyethylene compression mechanism and method. BACKGROUND

[0002] In the production of polyethylene winding structure wall pipe, the core mold is driven to rotate by a roller bracket, and a tape laying mechanism is displaced transversely along the axis of the core mold to allow the material to be wound in a spiral on the core mold, while requiring the molten material just wound on the mold to be bonded with the previous half-solidified material band. Due to the fact that the height of the overlapping part of the material band wound in succession is higher than the non-overlapping part of the material band, the entire material band compression surface is a non-flat compression surface, so multiple compression wheel compression mechanisms are used to compress the material band to enable the material band to closely adhere to the core mold. The existing multiple compression wheel compression mechanisms, such as patent number "CN206644326U, organ type compression wheel structure", "CN213166850U, a snap key combined pressure device for thermoplastic winding pipe processing", have the disadvantage that residual material in the material band adheres to the compression wheel and then enters the gap between the compression wheels, causing the compression wheel to appear clamped, making the compression wheel support unable to reset, and thus losing the compression effect. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a structure wall pipe core mold winding polyethylene compression mechanism and method to solve the problem of residual material in the material band entering the compression wheel gap and causing clamping, resulting in compression failure.

[0004] To solve the above problems, the technical scheme of the present application is as follows:

[0005] The structure wall pipe core mold winding polyethylene compression mechanism comprises a rack, a support hinged to the rack at one end, a support lower end hinged to the rack through a plurality of first air cylinders, a compression roller, a material supporting roller and a guide roller arranged in the support, the compression roller comprises a first hollow shaft, the first hollow shaft is connected to the support through first bearing seats at both ends, two top plates are fixedly connected to the first hollow shaft at intervals, a cylindrical air bag is arranged on the first hollow shaft, the air bag is fixedly connected to the two top plates at both ends, a gas inlet hole is formed in the first hollow shaft, one end of the first hollow shaft is closed, the other end is communicated with a gas source through a first rotary joint and a gas inlet pipe, and a stop valve is installed on the gas inlet pipe.

[0006] Cooling roll, broken roll, brush roll, tensioning roll and power roll are assembled in the bracket, and the belt is assembled on the material supporting roll, the pressing roll, the cooling roll, the broken roll, the brush roll, the tensioning roll and the power roll; the cooling roll comprises a roll body, second hollow shafts are communicated with both ends of the roll body respectively, the second hollow shafts are connected with the bracket through second bearing seats, and the two second hollow shafts are communicated with the water inlet pipe and the water outlet pipe through second rotary joints respectively; a plurality of grooves are arranged on the broken roll, and the grooves are uniformly distributed around the broken roll axis; the brush roll is in transmission connection with the first motor installed on the bracket; a sliding groove is formed in the tensioning roll bracket, a sliding block is arranged in the sliding groove, the roll shafts at both ends of the tensioning roll are assembled in the sliding blocks, a support plate is arranged on one side of the sliding groove, a second air cylinder is installed on the support plate, and the piston rod of the second air cylinder is connected with the sliding block; the roll shaft of the power roll is in transmission connection with the second motor installed on the bracket.

[0007] A method for pressing mechanism of polyethylene winding on a structural wall pipe core mold, the belt is rotated by the driving of the power roll, the rotating belt supports the material belt to enter the gap between the pressing roll and the core mold, meanwhile, the first air cylinder pushes the material belt to press the core mold, and the material belt can be uniformly wound on the core mold by the rotation of the core mold and the transverse displacement of the pressing mechanism; the residual material adhered on the belt is first cooled and hardened by the cooling roll, then broken by the broken roll, and then cleaned by the brush roll to keep the surface of the belt clean.

[0008] The beneficial effects of the present application are:

[0009] 1. The material belt on the pressing roll is pushed and pressed by the first air cylinder to adhere to the core mold, so that the material belt is wound on the core mold, the pressing roll adopts air bag pressing, the air bag can change according to the thickness change of the pressing surface and the lap surface of the material belt, so that the uneven surface of the material belt can be closely adhered to the core mold, and the air between the material belt and the core mold is excluded, so as to ensure the winding effect of the core mold, and since the air bag surface has no gap, the clamping plate phenomenon does not occur, and the pressing roll can continuously press the material belt.

[0010] 2. The belt on the pressing roll can first take away the heat of the material belt transmitted to the air bag, so as to avoid the softening of the air bag due to high temperature, and secondly, the belt can take away the residual material, and the cooling roll, the broken roll and the brush roll can cool, harden, break and clean the residual material on the belt, so as to keep the surface of the belt clean, prevent the residual material from entering the subsequent pressing material belt, avoid the appearance of material scars on the structural wall pipe, and ensure the pressing quality. BRIEF DESCRIPTION OF DRAWINGS

[0011] The present application will be further described below in combination with the drawings:

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application,

[0013] Figure 2It is a schematic view of the front structure of the present application,

[0014] Figure 3 It is a schematic view of the structure of the present application in implementation,

[0015] Figure 4 It is a schematic view of the top structure of the present application,

[0016] Figure 5 It is a schematic view of the connection relationship between each electrical device of the present application.

[0017] In the figure:

[0018] The guide roller 100;

[0019] The power roller 200, the second motor 201;

[0020] The material supporting roller 300;

[0021] The air bag 400, the electromagnetic valve 401, the pressure sensor 402, the first rotary joint 403, the top plate 404, the first hollow shaft 405;

[0022] The roller body 500, the flow guide pipe 501, the flow guide plate 502, the water inlet pipe 503, the PID regulating valve 504, the second rotary joint 505, the temperature sensor 506, the drain pipe 507, the second hollow shaft 508;

[0023] The broken piece roller 600;

[0024] The tensioning roller 700, the sliding block 701, the supporting plate 702;

[0025] The brush roller 800, the first motor 801;

[0026] The belt 900;

[0027] The first air cylinder 110;

[0028] The second air cylinder 120;

[0029] The machine frame 130;

[0030] The support 140;

[0031] The core mold 150;

[0032] The material belt 160. DETAILED DESCRIPTION

[0033] Example 1:

[0034] The structure wall pipe core mold polyethylene winding compression mechanism, including frame 130, support 140 hinge in frame 130, support 140 lower end through a plurality of first cylinder 110 and frame 130 hinge, in the support 140 is equipped with compression roller, material roller 300 and guide roller 100, the compression roller includes first hollow shaft 405, both ends of first hollow shaft 405 through the first bearing seat and support 140 connection, on the first hollow shaft 405 is fixedly connected with two top plate 404, on the first hollow shaft 405 is equipped with cylindrical air bag 400, air bag 400 is made of fluorine rubber, air bag 400 both ends and two top plate 404 adhesive fixed connection, on the first hollow shaft is provided with air inlet hole, one end of first hollow shaft 405 is closed, the other end through the first rotary joint 403 and air inlet pipe and gas source communication, gas source is compressed air bottle, on the air inlet pipe is installed with stop valve.

[0035] The working process of example 1 is as follows: the material belt falls on the air bag 400 under the guidance of the guide roller 100 and the material roller 300, the first cylinder 110 drives the material belt on the air bag 400 to adhere to the core mold 150, and the frame 130 with the support 140 moves along the axis of the core mold 150, while the core mold 150 rotates, so that the material belt is wound on the core mold 150 in spiral shape layer by layer, when the air bag 400 is pressed on the material belt in molten state, the air bag 400 changes with the change of the thickness of the lap, so that the uneven surface of the material belt can be closely adhered to the core mold 150, and the air bag 400 driven by the material belt can roll the air in the material belt, which ensures the winding effect of the core mold 150. Because the surface of the air bag 400 has no gap, there is no clamping plate phenomenon, which can ensure that the compression roller continuously presses the material belt.

[0036] Example 2:

[0037] Example 2 is a further improvement made on the basis of Example 1, which improvement is that a cooling roller, a broken piece roller 600, a brush roller 800, a tensioning roller 700 and a power roller 200 are assembled in the bracket 140, and a Teflon high-temperature cloth belt 900 is assembled on the material supporting roller 300, the pressing roller, the cooling roller, the broken piece roller 600, the brush roller 800, the tensioning roller 700 and the power roller 200; the cooling roller comprises a roller body 500, the roller body 500 is communicated with two second hollow shafts 508 at two ends respectively, the second hollow shafts 508 are connected with the bracket 140 through second bearing seats, and the two second hollow shafts 508 are communicated with a water inlet pipe 503 and a water outlet pipe 507 through second rotary joints 505 respectively; a plurality of grooves are arranged on the broken piece roller 600, and each groove is uniformly distributed around the axis of the broken piece roller 600; the brush roller 800 is in transmission connection with a first motor 801 mounted on the bracket 140; a sliding groove is formed in the bracket 140 of the tensioning roller 700, a sliding block 701 is arranged in the sliding groove, the roller shafts at two ends of the tensioning roller 700 are assembled in the sliding block 701, a support plate 702 is arranged on one side of the bracket 140 of the sliding groove, a second air cylinder 120 is mounted on the support plate 702, and a piston rod of the second air cylinder 120 is connected with the sliding block 701; the roller shaft of the power roller 200 is in transmission connection with a second motor 201 mounted on the bracket 140.

[0038] The second motor 201 drives the power roller 200 to rotate, and the rotating power roller 200 moves with the belt 900; the second air cylinder 120 drives the tensioning roller 700 to move outward to tension the belt 900 and prevent the belt 900 from slipping; cooling water is sent into the cooling roller through the water inlet pipe 503, so that the cooling roller can cool and solidify the residual material adhered to the belt 900, and the second rotary joints 505 connected at two ends of the water inlet pipe 503 and the water outlet pipe 507 can ensure that the cooling roller rotates normally while avoiding the water inlet pipe 503 and the water outlet pipe 507 from rotating; when the hardened residual material on the belt 900 passes through the broken piece roller 600, the groove edges on the broken piece roller 600 extrude the residual material, so that the residual material is broken and disconnected into small pieces, and then the residual material adhered to the belt 900 is brushed off by the rotating brush roller 800.

[0039] The working process of Example 2 is as follows:

[0040] The power roller 200 drives the belt 900 to rotate, and the rotating belt 900 supports the material belt to enter the gap between the compression roller and the core mold 150. At the same time, the first cylinder 110 pushes the material belt to press the core mold 150, and the material belt can be uniformly wound on the core mold 150 with the rotation of the core mold 150 and the transverse displacement of the compression mechanism. The belt 900 on the air bag 400 changes with the change of the thickness of the lap joint, so that the uneven surface of the material belt can be tightly attached to the core mold 150. The residual material adhered to the belt 900 is first cooled and hardened by the cooling roller, and then broken by the broken piece roller 600. After that, the residual material adhered to the belt 900 is cleaned by the brush roller 800 to keep the surface of the belt 900 clean.

[0041] Compared with example 1, example 2 can make the belt 900 press the material belt in a constant temperature state, avoid heat accumulation, make the compression mechanism can be used for a long time, and continuously use, and can automatically clean the residual material adhered to the belt 900, avoid the material scar on the structure wall pipe, and ensure the compression quality.

[0042] The cooling roller is provided with a flow guide pipe 501, and the both ends of the flow guide pipe 501 are closed. The flow guide pipe 501 is connected with the roller body 500 through a plurality of flow guide plates 502. The pipe-shaped flow channel is formed between the outer wall of the flow guide pipe 501 and the inner wall of the roller body 500, and the both ends of the pipe-shaped flow channel are communicated with the water inlet pipe 503 and the drain pipe 507 respectively.

[0043] This structure can make the cooling water flow along the pipe-shaped flow channel, and the cooling water directly acts on the inner wall surface of the roller body 500, so that the cooling water can take away the heat of the roller body 500 in time, so as to realize the rapid and effective cooling of the cooling roller.

[0044] The PID regulating valve 504 is installed on the water inlet pipe 503, and the temperature sensor 506 is installed on the drain pipe 507. The temperature sensor 506 is connected with the input end of the controller, and the PID regulating valve 504 is connected with the output end of the controller. The controller is a PLC controller. The temperature of the cooling water flowing out of the cooling roller is detected in real time by the temperature sensor 506, and the cooling roller temperature is kept in the set range with the cooperation of the PID regulating valve 504, so that the residual material can be effectively cooled.

[0045] The electromagnetic valve 401 and the pressure sensor 402 are installed on the air inlet pipe. The pressure sensor 402 is connected with the input end of the controller, and the electromagnetic valve 401 is connected with the output end of the controller. The pressure of the air bag 400 is detected in real time by the pressure sensor 402, and the air bag 400 can be pressurized in time when the pressure of the air bag 400 decreases.

Claims

1. A pressing mechanism for winding polyethylene using a structural wall core mold, comprising a frame (130), a support (140) with one end hinged to the frame (130), and the lower end of the support (140) hinged to the frame (130) via a plurality of first cylinders (110), characterized in that: The support (140) is equipped with a pressing roller, a material support roller (300), and a guide roller (100). The pressing roller includes a first hollow shaft (405), the two ends of which are connected to the support (140) through a first bearing seat. Two top plates (404) are fixedly connected at intervals on the first hollow shaft (405). A cylindrical airbag (400) is provided on the first hollow shaft (405), the two ends of which are fixedly connected to the two top plates (404). An opening is provided on the first hollow shaft (405). An air inlet is provided. One end of the first hollow shaft (405) is closed, and the other end is connected to the air source through the first rotary joint (403) and the air inlet pipe. A shut-off valve is installed on the air inlet pipe. A cooling roller, a fragment roller (600), a brush roller (800), a tension roller (700), and a power roller (200) are assembled in the bracket (140). A belt (900) is assembled on the material support roller (300), the pressure roller, the cooling roller, the fragment roller (600), the brush roller (800), the tension roller (700), and the power roller (200). The cooling roller includes a roller body (500), with a second hollow shaft connected to each end of the roller body (500). The second hollow shaft is connected to the bracket (140) through a second bearing seat. The two second hollow shafts are connected to the water inlet pipe (503) and the drain pipe (507) through a second rotary joint (505). Multiple grooves are provided on the fragment roller (600), and each groove is evenly distributed around the axis of the fragment roller (600). The brush roller (800) is connected to the first motor (801) mounted on the bracket (140). Dynamic connection; a sliding groove is provided on the support (140) of the tension roller (700), and a slider (701) is provided in the sliding groove. The roller shafts at both ends of the tension roller (700) are respectively installed in the slider (701). A support plate (702) is provided on the support (140) on one side of the sliding groove. A second cylinder (120) is installed on the support plate (702). The piston rod of the second cylinder (120) is connected to the slider (701). The roller shaft of the power roller (200) is connected to the second motor (201) installed on the support (140).

2. The clamping mechanism for winding polyethylene with a structural wall tube core mold according to claim 1, characterized in that: A guide pipe (501) is provided inside the cooling roller. The two ends of the guide pipe (501) are closed. The guide pipe (501) is connected to the roller body (500) through multiple guide plates (502). A tubular flow channel is formed by the outer wall of the guide pipe (501) and the inner wall of the roller body (500). The two ends of the tubular flow channel are connected to the water inlet pipe (503) and the drain pipe (507) respectively.

3. The clamping mechanism for winding polyethylene using a structural wall tube core mold according to claim 1 or 2, characterized in that: A PID regulating valve (504) is installed on the water inlet pipe (503), and a temperature sensor (506) is installed on the drain pipe (507). The temperature sensor (506) is connected to the controller input terminal, and the PID regulating valve (504) is connected to the controller output terminal.

4. The clamping mechanism for winding polyethylene with a structural wall tube core mold according to claim 3, characterized in that: A solenoid valve (401) and a pressure sensor (402) are installed on the intake pipe. The pressure sensor (402) is connected to the input terminal of the controller, and the solenoid valve (401) is connected to the output terminal of the controller.

5. A method for using a compression mechanism for winding polyethylene with a structural wall mandrel as described in claim 4, characterized in that: The belt (900) is driven to rotate by the power roller (200). The rotating belt (900) carries the material belt into the gap between the pressing roller and the core mold (150). At the same time, the first cylinder (110) pushes the material belt to squeeze the core mold (150). With the rotation of the core mold (150) and the lateral displacement of the pressing mechanism, the material belt can be evenly wrapped on the core mold (150). The residue adhering to the belt (900) is first cooled and hardened by the cooling roller, and then the hardened residue is broken by the shredder roller (600). After that, the residue adhering to the belt (900) is cleaned by the brush roller (800) to keep the surface of the belt (900) clean.

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