CN117549182B - Polyurethane cleaning equipment and method for end heads of spray-coating winding heat-insulating pipes - Google Patents
Polyurethane cleaning equipment and method for end heads of spray-coating winding heat-insulating pipes Download PDFInfo
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- CN117549182B CN117549182B CN202410048546.8A CN202410048546A CN117549182B CN 117549182 B CN117549182 B CN 117549182B CN 202410048546 A CN202410048546 A CN 202410048546A CN 117549182 B CN117549182 B CN 117549182B
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- 229920002635 polyurethane Polymers 0.000 title claims abstract description 70
- 239000004814 polyurethane Substances 0.000 title claims abstract description 70
- 238000005507 spraying Methods 0.000 title claims abstract description 66
- 238000004140 cleaning Methods 0.000 title claims abstract description 39
- 238000004804 winding Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 141
- 238000005520 cutting process Methods 0.000 claims abstract description 110
- 238000004321 preservation Methods 0.000 claims abstract description 76
- 238000005498 polishing Methods 0.000 claims abstract description 47
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 239000003973 paint Substances 0.000 claims abstract description 37
- 239000007921 spray Substances 0.000 claims abstract description 15
- 229910045601 alloy Inorganic materials 0.000 claims description 29
- 239000000956 alloy Substances 0.000 claims description 29
- 238000009413 insulation Methods 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 2
- 239000011810 insulating material Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The invention belongs to the field of cleaning of the end of a heat-insulating pipe, and particularly discloses a device and a method for cleaning polyurethane of the end of a spray-coated and wound heat-insulating pipe, wherein the device comprises a rotary supporting mechanism, a cutting mechanism, a stripping mechanism, a polishing mechanism and the like; the rotary supporting mechanism is used for supporting the heat-insulating pipe and driving the heat-insulating pipe to rotate; the cutting mechanism is arranged on one side of the heat-insulating pipe and is used for cutting the PE layer of the heat-insulating pipe and the polyurethane of the internal heat-insulating material; the stripping mechanism is arranged at the outer side of the end part of the heat-insulating pipe and is used for stripping polyurethane serving as a heat-insulating material; the polishing mechanism is arranged on the other side of the heat-insulating pipe and is used for polishing the inner layer steel pipe of the heat-insulating pipe; the paint spraying mechanism is arranged below the heat preservation pipe and is used for spraying paint on the polished inner layer steel pipe. The invention can clean polyurethane at the end of the spray-coated winding heat-insulating pipe and carry out subsequent spray-coating treatment.
Description
Technical Field
The invention relates to the field of cleaning of ends of heat-insulating pipes, in particular to a polyurethane cleaning device and method for spraying and winding the ends of the heat-insulating pipes.
Background
The spray-coating winding heat-insulating pipe comprises three layers, namely a steel pipe, a polyurethane layer and a PE layer from inside to outside; when the PE layer of the outermost layer is wound, the steel pipes which are required to be reserved at the two ends of the heat-insulating pipe cannot be exposed, so that the heat-insulating layers and the PE layers at the two ends are cleaned after the PE layer is wound, and then polyurethane adhered to the outer wall of the inner-layer steel pipe is polished by a polishing mechanism; in the patent with the application number of CN202020495565.2, polyurethane treatment equipment for the end head of a spray-coating winding heat-insulating pipe is disclosed, and comprises a cleaning device and a fixing device, wherein the heat-insulating pipe to be cleaned is arranged on the fixing device; the cleaning device comprises a handheld circular saw, a slide way is further arranged on an outer frame of the handheld circular saw, a scale is installed in the slide way, the sliding direction of the scale is parallel to the axis of the handheld circular saw, one end of the scale is fixed in the slide way through a fixing piece, and the other end of the scale is connected with a limiting mechanism; however, the treatment device still needs to rely on manpower, so that the overall efficiency is lower, and the end head of the treated pipe body is not clean. In the patent with the application number of CN202320010295.5, an automatic cutting and stripping mechanism for the end head of a prefabricated directly-buried heat-insulating pipe is disclosed, the device adopts a cutting piece to cut, and a pipe body is easily cut; the stripping mechanism has poor vertical stripping stability, and cannot realize functions of polishing, paint spraying and the like.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide polyurethane cleaning equipment and method for the end head of a spray-coating winding heat-insulating pipe, which not only can clean polyurethane, but also can polish and spray paint the steel pipe.
In order to achieve the above object, the present invention is realized by the following technical scheme:
in a first aspect, an embodiment of the present invention provides a polyurethane cleaning apparatus for a spray-coating winding insulation pipe end, including a rotary supporting mechanism, a cutting mechanism, a peeling mechanism, a polishing mechanism and a paint spraying mechanism;
the rotary supporting mechanism is arranged at the bottom of the heat preservation pipe and drives the heat preservation pipe to rotate;
the cutting mechanism is arranged on the first side of the heat-insulating pipe along the radial direction of the heat-insulating pipe, and is an alloy cutting wire mechanism which cuts the PE layer and polyurethane of the heat-insulating pipe along the circumferential direction of the heat-insulating pipe;
the stripping mechanism is arranged at the outer side of the end part of the heat preservation pipe along the axial direction of the heat preservation pipe, can move along the direction of approaching or separating from the end part of the heat preservation pipe and is used for stripping polyurethane at the end part of the heat preservation pipe;
the polishing mechanism is arranged on the second side of the heat-insulating pipe along the radial direction of the heat-insulating pipe, is arranged opposite to the cutting mechanism, and polishes the peeled heat-insulating pipe;
the paint spraying mechanism is arranged below the end of the heat preservation pipe and is used for carrying out paint spraying treatment on the steel pipe exposed after grinding.
As a further technical scheme, the polishing mechanism comprises an air cylinder supporting seat, a first driving air cylinder, a polishing belt, a third guide rail and a second supporting frame; the second support frame is provided with a third guide rail, the third guide rail is provided with an air cylinder support seat, a row of first driving air cylinders are arranged on the air cylinder support seat, and the first driving air cylinders are connected with the polishing belt.
As a further technical scheme, the paint spraying mechanism comprises a second driving cylinder and a nozzle, wherein the second driving cylinder can drive the nozzle to move along the radial direction of the heat preservation pipe.
As a further technical scheme, the stripping mechanism comprises a mounting seat, a second guide rail arranged along the axial direction of the heat preservation pipe is arranged on the mounting seat, and a stripping frame is arranged on the second guide rail; two groups of guiding driving devices are arranged in the stripping frame, and the two groups of guiding driving devices simultaneously drive two stripping clamps arranged left and right to move along the radial direction of the heat preservation pipe.
As a further technical solution, the two sets of guiding driving devices are arranged symmetrically with respect to the center of the stripping frame.
As a further technical scheme, each group of guiding driving devices respectively comprises a plurality of guiding rods and a transmission screw rod; the axes of the guide rods and the transmission screw rod are parallel; the transmission screw rods of the two groups of guiding driving devices share one driving motor.
As a further technical scheme, peel off anchor clamps include mounting bracket and arc cutter, mounting bracket and arc cutter detachable connection.
As a further technical scheme, the cutting mechanism comprises an alloy cutting wire, a cutting frame, a cutting wire bracket, a first guide rail and a first supporting frame; the cutting wire support comprises a first support frame, a first guide rail, a cutting frame, a second guide rail, a first driving spring, a second driving spring, a cutting frame and a cutting frame, wherein the first guide rail is arranged on the first support frame; an alloy cutting wire is connected between the first connecting rod and the second connecting rod, and the alloy cutting wire is connected with a heating device.
In a second aspect, the invention also provides a method for cleaning polyurethane at the end of a thermal insulation pipe by using the spraying winding polyurethane cleaning equipment for the end of the thermal insulation pipe, which comprises the following steps:
step 1, the cutting mechanism moves to a set position of the end of the heat preservation pipe until the cutting mechanism contacts with the PE layer of the outer ring of the heat preservation pipe, and in the moving process, alloy cutting wires of the cutting mechanism are heated; the rotary supporting mechanism drives the heat preservation pipe to rotate, and after the alloy cutting wire is heated to a set temperature, the PE layer and the polyurethane are cut until the alloy cutting wire of the cutting mechanism contacts the steel pipe, and the cutting is stopped;
step 2, the stripping mechanism moves to the outer side of the end part of the heat preservation pipe along the axis direction of the heat preservation pipe and then moves to the direction of the heat preservation pipe, so that the cut polyurethane is stripped from the steel pipe;
step 3, the polishing mechanism moves towards the outer ring of the steel pipe of the heat-insulating pipe along the radial direction of the heat-insulating pipe, and polishes the steel pipe when the polishing mechanism contacts with the outer ring of the steel pipe;
and 4, lifting the paint spraying mechanism, and carrying out paint spraying treatment on the polished steel pipe.
The beneficial effects of the embodiment of the invention are as follows:
1. according to the polyurethane cutting, peeling, polishing and paint spraying device, the heat-insulating pipe is driven to rotate through the rotary supporting mechanism, and then the cutting mechanism, the peeling mechanism, the polishing mechanism and the paint spraying mechanism are matched in the rotation process of the heat-insulating pipe; specifically, firstly, a circle is cut out on the polyurethane and PE layer along the circumferential direction at a position which is a certain distance away from the end of the heat preservation pipe by a cutting mechanism, so that the steel pipe is separated from the polyurethane and PE layer along the circumferential direction; then the stripping mechanism strips the polyurethane after the section separation; the exposed steel pipe is polished by the polishing mechanism; finally, the paint spraying mechanism sprays paint on the polished steel pipe; the cutting mechanism, the peeling mechanism, the polishing mechanism and the paint spraying mechanism are matched with each other and are reasonably arranged; can realize the cleaning and subsequent paint spraying treatment of polyurethane at the end of the spray-coated winding heat-insulation pipe.
2. According to the characteristics of the polyurethane and PE outer sleeve, the alloy cutting wire is selected as the electric heating cutting wire, the steel pipe of the inner layer cannot be cut even if the PE layer and the polyurethane are in contact with the steel pipe of the inner layer after cutting is completed, and due to the existence of the driving spring, the cutting mechanism can be self-adapted to heat preservation pipes with different pipe diameters, namely one cutting mechanism can cut a plurality of heat preservation pipes with different pipe diameters, the cutting efficiency is high, the cutting section is well formed, and secondary machining is not needed for the whole end face.
3. Compared with the prior art that the stripping clamps of the stripping mechanism are arranged up and down, the stripping mechanism has better stability.
4. The stripping frame of the stripping clamp is detachably connected with the arc-shaped cutter, and the arc-shaped cutter can be replaced to adapt to the spraying winding energy-saving heat-preserving pipes with different diameters, so that the universality of polyurethane cleaning equipment at the end of the spraying winding heat-preserving pipe is improved.
Drawings
FIG. 1 is a schematic layout view of polyurethane cleaning equipment for the end of a spray-coated winding insulation pipe;
FIG. 2 is a schematic view of a rotary support mechanism, a cutting mechanism and a polishing mechanism of the polyurethane cleaning equipment for the end of the spray-coating winding insulation pipe;
FIG. 3 is a schematic diagram of a cutting mechanism of the polyurethane cleaning equipment for the end of the spray-coating winding insulation pipe;
FIG. 4 is a schematic diagram of a polishing mechanism of polyurethane cleaning equipment for spraying and winding the end heads of the insulating pipes;
FIG. 5 is a schematic diagram of a stripping mechanism of a polyurethane cleaning device for spraying and winding the end of a heat-insulating pipe;
FIG. 6 is a schematic view of a stripping fixture of the polyurethane cleaning device for the end of a spray-coated wrapped insulation pipe;
FIG. 7 is a schematic diagram of a paint spraying mechanism of the polyurethane cleaning equipment for spraying and winding the end heads of the insulating pipes;
in the figure 1: cutting wire support, 1-1: first connecting rod, 1-2: second connecting rod, 2: drive spring, 2-1: first driving spring, 2-2: second drive spring, 3: alloy cutting wire, 4: cutting frame, 5: first guide rail, 6: guide rail slide block, 7: first support frame, 8: cylinder supporting seat, 9: first drive cylinder, 10: sanding belt, 11: third rail, 12: second support frame, 13: second drive cylinder, 14: nozzle, 15: rotating carrier roller, 16: rotating electrical machine, 17: third support frame, 18: insulating tube, 19: stripping fixture, 19-1: mounting rack, 19-2: arc cutter, 20: guide bar, 21: drive motor, 22: second rail, 23: mounting base, 24: carriage, 25: drive screw, 26: stripping frame, 27: rotation support mechanism, 28: cutting mechanism, 29: peeling mechanism, 30: polishing mechanism, 31: and a paint spraying mechanism.
Detailed Description
In an exemplary embodiment of the present invention, as shown in fig. 1, 2, 3, 4, 5, 6 and 7, the present embodiment discloses a polyurethane cleaning apparatus for spraying and winding an end of a thermal insulation pipe, which includes a rotary supporting mechanism 27, a cutting mechanism 28, a peeling mechanism 29, a polishing mechanism 30 and a paint spraying mechanism 31; the rotary supporting mechanism 27 is used for supporting the heat preservation pipe 18, and the rotary supporting mechanism 27 can also drive the heat preservation pipe 18 to rotate; the cutting mechanism 28 is arranged at one side of the heat preservation pipe 18 and is used for cutting the PE layer of the heat preservation pipe 18 and the polyurethane of the internal heat preservation material; the stripping mechanism 29 is arranged outside the end part of the heat preservation pipe 18 and is used for stripping polyurethane of the heat preservation material; the polishing mechanism 30 is disposed on the other side (opposite to the cutting mechanism 28) of the insulating tube 18, and is used for polishing the inner layer steel tube of the insulating tube 18; the paint spraying mechanism 31 is arranged below the heat preservation pipe 18 and is used for spraying paint on the polished inner layer steel pipe.
The cutting mechanism 28, the peeling mechanism 29, the polishing mechanism 30 and the paint spraying mechanism 31 described above are operated in the following order: the cutting mechanism 28 firstly cuts the polyurethane and PE layers along the circumferential direction of the polyurethane and PE layers, and cuts a circle on the polyurethane and PE layers, so that the polyurethane and PE layers cut at the end part of the heat preservation pipe 18 are separated from the polyurethane and PE layers cut at other positions, and the cutting length of the polyurethane and PE layers is determined by the length of the steel pipe to be exposed; the peeling mechanism 29 peels off the cut pipe end polyurethane along the axial direction of the heat preservation pipe 18, the polishing mechanism 30 polishes the exposed steel pipe part, and finally the paint spraying mechanism 31 sprays paint on the polished steel pipe; and in the whole process, after the cutting mechanism 28 is cut, the cutting mechanism 28 exits the station along the radial direction of the heat preservation pipe 18, then the stripping mechanism 29 moves to the end part of the heat preservation pipe 18 for stripping, after the stripping is finished, the stripping mechanism 29 exits the station, the polishing mechanism 30 polishes, after the polishing is finished, the polishing mechanism 30 exits the station, and finally the paint spraying mechanism 31 sprays paint.
Further, as shown in fig. 2 and 3, the cutting mechanism 28 in this embodiment includes a cutting wire holder 1, a driving spring 2, an alloy cutting wire 3, a cutting frame 4, a first guide rail 5, a guide rail slider 6, and a first supporting frame 7;
wherein, as shown in FIG. 3, the cutting wire bracket 1 comprises a first connecting rod 1-1 and a second connecting rod 1-2; the first connecting rod 1-1 and the second connecting rod 1-2 are arranged at a certain included angle, one end of the first connecting rod 1-1 is hinged with one end of the second connecting rod 1-2, the other end of the first connecting rod 1-1 is not connected with the other end of the second connecting rod 1-2, and the hinged ends of the first connecting rod 1-1 and the second connecting rod 1-2 are both hinged with the cutting frame 4; specifically, a first guide rail 5 is installed on a first support frame 7, the first guide rail 5 is arranged along the radial direction of a heat preservation pipe 18, a guide rail sliding block 6 is installed on the first guide rail 5, the guide rail sliding block 6 can move along the first guide rail 5 under the drive of a rotating screw rod, a cutting frame 4 is installed on the guide rail sliding block 6, a driving spring 2 is installed at the upper end and the lower end of the cutting frame 4 respectively, and the driving spring 2 comprises a first driving spring 2-1 and a second driving spring 2-2; the first driving spring 2-1 at the upper end is connected with one end of the first connecting rod 1-1, the other end of the first connecting rod 1-1 is hinged with the middle part of the cutting frame 4, the second driving spring 2-2 at the lower end is connected with one end of the second connecting rod 1-2, and the other end of the second connecting rod 1-2 is hinged with the middle part of the cutting frame 4; an alloy cutting wire 3 is connected between the first connecting rod 1-1 and the second connecting rod 1-2, and the alloy cutting wire 3 is connected with a heating device; in the process of rotating the heat preservation pipe 18, the PE layer at the end part of the heat preservation pipe 18 and the polyurethane of the internal heat preservation material can be cut by heating the alloy cutting wire 3, and the alloy cutting wire 3 can be always attached to the PE layer of the heat preservation pipe 18 and the polyurethane of the heat preservation material due to the arrangement of the first driving spring 2-1 and the second driving spring 2-2.
The working principle of the cutting mechanism 28: after the wound heat-insulating pipe 18 is conveyed to the rotary carrier roller 15 of the rotary supporting mechanism 27 through a transmission line, the rotary carrier roller 15 is driven by the rotary motor 16 to start rotating, and then the guide rail sliding block 6 controlled by the rotary screw rod moves towards the end part of the heat-insulating pipe 18 along the first guide rail 5 with the cutting frame 4 to a set position; the alloy cutting wire 3 starts to be electrified and heated at the same time when moving, when the alloy cutting wire 3 contacts the PE pipe on the outer layer, the alloy cutting wire 3 continuously moves towards the inner ring of the heat preservation pipe 18 under the action of the driving spring 2, and then polyurethane which is an internal heat preservation material is cut until the alloy cutting wire 3 contacts the steel pipe on the inner layer, and the whole cutting process is completed; the entire cutting mechanism 28 then begins to move away from the insulating tube 18; when the entire cutting process is completed, the peeling mechanism 29 is moved to the corresponding station again for peeling.
According to the characteristics of polyurethane and PE outer sleeve, the reinforced nichrome wire is selected as the alloy cutting wire 3, after the PE layer and the polyurethane are cut, the steel pipe can not be cut even though the alloy cutting wire 3 contacts the steel pipe of the inner layer, namely, the steel pipe can not be cut under the condition that a sensor is not used, and due to the existence of the driving spring 2, the heat preservation pipes 18 with different pipe diameters can be cut by the self-adaptive type cutting mechanism 28, the cutting section is well formed while the cutting efficiency is high, and secondary machining is not needed on the whole end face.
The peeling mechanism 29 is shown in fig. 5, and comprises a movable mounting seat 23, wherein the mounting seat 23 can be moved to the end part of the heat preservation pipe 18, a second guide rail 22 is arranged on the mounting seat 23, and the arrangement direction of the second guide rail 22 is parallel to the axis of the heat preservation pipe 18; a stripping frame 26 is arranged on the second guide rail 22, and the stripping frame 26 can move back and forth along the second guide rail 22; two groups of guide driving devices are arranged in the stripping frame 26, and the two groups of guide driving devices are symmetrically arranged relative to the center of the stripping frame 26, wherein each group of guide driving devices comprises a plurality of guide rods 20 and a transmission screw rod 25; the axes of the guide rods 20 and the transmission screw rods 25 are parallel, and the two groups of guide driving devices share one driving motor 21, and one driving motor 21 drives the two transmission screw rods 25 to rotate simultaneously; one group of guide driving devices drive one stripping clamp 19, and two groups of guide driving devices simultaneously drive the two stripping clamps 19 to move oppositely or move in opposite directions on two sides of the heat preservation pipe 18; the moving direction of the two peeling jigs 19 is perpendicular to the setting direction of the second guide rail 22; when the two stripping clamps 19 move in opposite directions, the spraying and winding energy-saving heat-insulating pipe 18 can be clamped, then the whole body moves along the axial direction of the spraying and winding energy-saving heat-insulating pipe 18, polyurethane on the heat-insulating pipe 18 is stripped, and after stripping is finished, the two stripping clamps 19 move in opposite directions, so that the spraying and winding energy-saving heat-insulating pipe 18 can be loosened.
In this embodiment, each group of guiding driving device includes four guiding rods 20, two guiding rods 20 are disposed on the upper portion of the transmission screw 25, two guiding rods 20 are disposed on the lower portion of the transmission screw 25, a sliding frame 24 is vertically installed on the four guiding rods 20 and the transmission screw 25, the sliding frame 24 is in threaded fit with the transmission screw 25, when the transmission screw 25 rotates, the sliding frame 24 moves linearly, the stripping clamp 19 is installed on the sliding frame 24 through clamping, and during sliding of the sliding frame 24, the stripping clamp 19 is carried to move.
In the present embodiment, the above-described driving motor 21 is installed at the center position of the peeling frame 26.
In this embodiment, the movement of the stripping frame 26 along the second guide rail 22 may be driven by a motor screw, and during the movement of the stripping frame 26, the stripping frame moves with the two stripping jigs 19, so as to strip the polyurethane.
In this embodiment, the stripping fixture 19 is shown in fig. 6, and includes a mounting frame 19-1 and an arc cutter 19-2, where the mounting frame 19-1 is detachably connected to the arc cutter 19-2, so that the design is that the spraying winding insulation pipe 18 with different diameters can be adapted by replacing the arc cutter 19-2, so that the universality of the cleaning equipment is improved.
The polishing mechanism 30 comprises a cylinder support seat 8, a first driving cylinder 9, a polishing belt 10, a third guide rail 11 and a second support frame 12 as shown in fig. 2 and 4; a third guide rail 11 arranged along the axis direction of the heat preservation pipe 18 is arranged on the second support frame 12, a cylinder support seat 8 is arranged on the third guide rail 11, a row of first driving cylinders 9 is vertically arranged on the cylinder support seat 8, the end part of each first driving cylinder 9 is provided with a mounting frame of a polishing belt 10, the row of first driving cylinders 9 is connected with the same polishing belt 10, and when the heat preservation pipe 18 rotates, the peeled heat preservation pipe 18 can be polished; it should be noted that, the second supporting frame 12 of the polishing mechanism 30 is disposed on the opposite side of the cutting mechanism 28, as shown in fig. 2, the polishing mechanism 30 is disposed on the left side of the insulating tube 18, and the cutting mechanism 28 is disposed on the right side of the insulating tube 18. In this embodiment, the polishing mechanism 30 sequentially polishes polyurethane adhered to the outer wall of the steel pipe from the middle of the spray-wound thermal insulation pipe 18 to the end of the spray-wound thermal insulation pipe 18.
The working principle of the polishing mechanism 30 is as follows: the stripped heat preservation pipes 18 continue to rotate on the rotating carrier roller 15, the first driving cylinders 9 control the polishing belts 10 to be close to the stripped heat preservation pipes 18, the inner layer steel pipes exposed out of the heat preservation pipes 18 are polished, each first driving cylinder 9 is independently controlled by a sensor to extend out, the steel pipes with different pipe diameters are self-adaptive, the distance between the polishing belts 10 and the steel pipes can be adjusted, and automatic control can be achieved by additionally installing a controller and input parameters. The polishing material in this embodiment adopts the polishing belt 10 with high strength, is easy to replace, and is convenient for later maintenance and adjustment.
Further, the paint spraying mechanism 31 in the present embodiment includes, as shown in fig. 7, a second driving cylinder 13 and a nozzle 14; the second driving cylinder 13 and the nozzle 14 are positioned below the end part of the heat preservation pipe 18, and the second driving cylinder 13 drives the nozzle 14 to move up and down below the heat preservation pipe 18.
The working principle of the paint spraying mechanism 31 is as follows:
the polished insulating tube 18 continues to rotate on the rotating carrier roller 15, at this time, the second driving cylinder 13 controls the nozzle 14 to move upwards to approach the insulating tube 18, then paint spraying is started, after the insulating tube 18 rotates for one circle, paint spraying is completed, the second driving cylinder 13 controls the nozzle 14 to move downwards, and at this time, the whole working process is completed.
Further, the spraying opening of the spraying nozzle 14 in the present embodiment is a sector, and the spraying range on the steel pipe can be further adjusted by adjusting the distance between the spraying opening and the heat insulation pipe 18, so that the spraying range of the spraying mechanism 31 in the present embodiment is relatively wide.
Further, when polyurethane at two ends of the spraying and winding energy-saving heat-insulating pipe 18 needs to be treated simultaneously, two sets of cleaning equipment can be arranged, the two sets of cleaning equipment are respectively located at two ends of the heat-insulating pipe 18, and when polyurethane cleaning is only needed to be carried out on one end of the heat-insulating pipe 18, only one set of cleaning equipment is arranged, and one set of cleaning equipment is located at the end to be cleaned of the heat-insulating pipe 18.
Further, as shown in fig. 1 and 2, the rotary supporting mechanism 27 includes a third supporting frame 17, on which a plurality of rotary motors 16 are mounted, and the plurality of rotary motors 16 drive the plurality of rotary idlers 15 to rotate, or the plurality of rotary idlers 15 are driven together by the same rotary motor 16 through a transmission device; when the plurality of rotating idlers 15 are rotated, the heat-insulating tube 18 can be driven to rotate along its own axis.
The embodiment also provides a method for cleaning the end of the heat-insulating pipe by using polyurethane cleaning equipment for winding the end of the heat-insulating pipe by spraying, which comprises the following steps:
step 1, the cutting frame 4 moves to a set position of the end head of the heat preservation pipe 18 along the first guide rail 5 until the cutting frame contacts with the PE layer of the outer ring of the heat preservation pipe 18, and in the moving process, the involution Jin Qiege wire 3 is heated; the rotary supporting mechanism 27 drives the heat preservation pipe 18 to rotate, and after the alloy cutting wire 3 is heated to a set temperature, the PE layer and the polyurethane are cut until the alloy cutting wire 3 contacts the steel pipe, and the cutting is stopped;
step 2, the stripping mechanism 29 moves to the outer side of the end part of the heat preservation pipe 18 along the axis direction of the heat preservation pipe 18, and then moves to the direction of the heat preservation pipe 18, so that the cut PE layer, polyurethane and the steel pipe are stripped;
step 3, the polishing mechanism 30 moves towards the outer ring of the steel pipe of the heat preservation pipe 18 along the radial direction of the heat preservation pipe 18, and polishes the peeled heat preservation pipe 18 when contacting with the outer ring of the steel pipe;
step 4, the paint spraying mechanism 31 is lifted up, and paint spraying treatment is carried out on the polished steel pipe.
Finally, it is pointed out that relational terms such as first, second, and third, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The polyurethane cleaning equipment for the end heads of the spray-coating winding insulating pipes is characterized by comprising a rotary supporting mechanism, a cutting mechanism, a stripping mechanism, a polishing mechanism and a paint spraying mechanism;
the rotary supporting mechanism is arranged at the bottom of the heat preservation pipe and drives the heat preservation pipe to rotate;
the cutting mechanism is arranged on the first side of the heat-insulating pipe along the radial direction of the heat-insulating pipe, and is an alloy cutting wire mechanism which cuts the PE layer and polyurethane of the heat-insulating pipe along the circumferential direction of the heat-insulating pipe;
the stripping mechanism is arranged at the outer side of the end part of the heat preservation pipe along the axial direction of the heat preservation pipe, can move along the direction of approaching or separating from the end part of the heat preservation pipe and is used for stripping polyurethane at the end part of the heat preservation pipe; the stripping mechanism comprises an installation seat, a second guide rail arranged along the axial direction of the heat preservation pipe is arranged on the installation seat, and a stripping frame is arranged on the second guide rail; two groups of guide driving devices are arranged in the stripping frame and simultaneously drive two stripping clamps arranged left and right to move along the radial direction of the heat preservation pipe; the stripping clamp comprises a mounting frame and an arc-shaped cutter, and the mounting frame is detachably connected with the arc-shaped cutter; when the two stripping clamps move in opposite directions, the spraying and winding energy-saving heat-insulating pipe can be clamped, then the whole body moves along the axial direction of the spraying and winding energy-saving heat-insulating pipe, and the polyurethane on the heat-insulating pipe is stripped;
the polishing mechanism is arranged on the second side of the heat-insulating pipe along the radial direction of the heat-insulating pipe, is arranged opposite to the cutting mechanism, and polishes the peeled heat-insulating pipe;
the paint spraying mechanism is arranged below the end of the heat preservation pipe and is used for carrying out paint spraying treatment on the steel pipe exposed after grinding.
2. The polyurethane cleaning equipment for the end of the spray-coated and wound heat-insulating pipe as claimed in claim 1, wherein the polishing mechanism comprises a cylinder supporting seat, a first driving cylinder, a polishing belt, a third guide rail and a second supporting frame; the second support frame is provided with a third guide rail, the third guide rail is provided with an air cylinder support seat, the air cylinder support seat is provided with a row of first driving air cylinders, and the first driving air cylinders are connected with the polishing belt.
3. The polyurethane cleaning device for the end of a spray-coated and wound insulation pipe according to claim 1, wherein the spray-coating mechanism comprises a second driving cylinder and a nozzle, and the second driving cylinder can drive the nozzle to move along the radial direction of the insulation pipe.
4. A polyurethane cleaning device for ends of spray-wound insulation pipes as claimed in claim 3, wherein the spray opening of the spray nozzle is fan-shaped.
5. A spray-wrapped insulation pipe end polyurethane cleaning apparatus as claimed in claim 1, wherein the two sets of guiding drives are centrally and symmetrically disposed with respect to the stripping frame.
6. A spray-wound insulation pipe end polyurethane cleaning apparatus as claimed in claim 1, wherein each set of guide drives comprises a plurality of guide rods and a drive screw; the axes of the guide rods and the transmission screw rod are parallel; the transmission screw rods of the two groups of guiding driving devices share one driving motor.
7. The polyurethane cleaning device for the end of a spray-coated and wound insulation pipe according to claim 1, wherein the cutting mechanism comprises an alloy cutting wire, a cutting frame, a cutting wire bracket, a first guide rail and a first supporting frame; the cutting wire support comprises a first support frame, a first guide rail, a cutting frame, a second guide rail, a first driving spring, a second driving spring, a cutting frame and a cutting frame, wherein the first guide rail is arranged on the first support frame; an alloy cutting wire is connected between the first connecting rod and the second connecting rod, and the alloy cutting wire is connected with a heating device.
8. A cleaning method of polyurethane cleaning equipment for ends of spray-coated and wound insulation pipes as claimed in any one of claims 1 to 7, characterized by the following:
step 1, the cutting mechanism moves to a set position of the end of the heat preservation pipe until the cutting mechanism contacts with the PE layer of the outer ring of the heat preservation pipe, and in the moving process, alloy cutting wires of the cutting mechanism are heated; the rotary supporting mechanism drives the heat preservation pipe to rotate, and after the alloy cutting wire is heated to a set temperature, the PE layer and the polyurethane are cut until the alloy cutting wire of the cutting mechanism contacts the steel pipe, and the cutting is stopped;
step 2, the stripping mechanism moves to the outer side of the end part of the heat preservation pipe along the axis direction of the heat preservation pipe and then moves to the direction of the heat preservation pipe, so that the cut polyurethane is stripped from the steel pipe;
step 3, the polishing mechanism moves towards the outer ring of the steel pipe of the heat-insulating pipe along the radial direction of the heat-insulating pipe, and polishes the steel pipe when the polishing mechanism contacts with the outer ring of the steel pipe;
and 4, lifting the paint spraying mechanism, and carrying out paint spraying treatment on the polished steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410048546.8A CN117549182B (en) | 2024-01-12 | 2024-01-12 | Polyurethane cleaning equipment and method for end heads of spray-coating winding heat-insulating pipes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410048546.8A CN117549182B (en) | 2024-01-12 | 2024-01-12 | Polyurethane cleaning equipment and method for end heads of spray-coating winding heat-insulating pipes |
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| Publication Number | Publication Date |
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| CN117549182A CN117549182A (en) | 2024-02-13 |
| CN117549182B true CN117549182B (en) | 2024-03-22 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101908110B1 (en) * | 2018-07-23 | 2018-10-15 | 세이브론 주식회사 | Cutting device for pipe insulation cover manufacturing equipment |
| CN209207606U (en) * | 2018-11-20 | 2019-08-06 | 天华化工机械及自动化研究设计院有限公司 | A kind of pipe end cleaning plant for polyurethane coating insulating tube |
| CN111681843A (en) * | 2020-07-30 | 2020-09-18 | 吴信任 | Surface treatment equipment for formed overhead line ceramic insulator |
| CN212011947U (en) * | 2020-03-25 | 2020-11-24 | 新光机电(昆山)有限公司 | Wire insulation separating device |
| CN115972313A (en) * | 2023-02-28 | 2023-04-18 | 成都琉朽齿自动化科技有限公司 | Anticorrosive insulating tube thermal insulation foam layer cutting equipment |
-
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- 2024-01-12 CN CN202410048546.8A patent/CN117549182B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101908110B1 (en) * | 2018-07-23 | 2018-10-15 | 세이브론 주식회사 | Cutting device for pipe insulation cover manufacturing equipment |
| CN209207606U (en) * | 2018-11-20 | 2019-08-06 | 天华化工机械及自动化研究设计院有限公司 | A kind of pipe end cleaning plant for polyurethane coating insulating tube |
| CN212011947U (en) * | 2020-03-25 | 2020-11-24 | 新光机电(昆山)有限公司 | Wire insulation separating device |
| CN111681843A (en) * | 2020-07-30 | 2020-09-18 | 吴信任 | Surface treatment equipment for formed overhead line ceramic insulator |
| CN115972313A (en) * | 2023-02-28 | 2023-04-18 | 成都琉朽齿自动化科技有限公司 | Anticorrosive insulating tube thermal insulation foam layer cutting equipment |
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| CN117549182A (en) | 2024-02-13 |
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