CN112917889A - Manufacturing process of polyurethane heat-insulation pipe - Google Patents
Manufacturing process of polyurethane heat-insulation pipe Download PDFInfo
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- CN112917889A CN112917889A CN202110086302.5A CN202110086302A CN112917889A CN 112917889 A CN112917889 A CN 112917889A CN 202110086302 A CN202110086302 A CN 202110086302A CN 112917889 A CN112917889 A CN 112917889A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
- B29C63/04—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like
- B29C63/08—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding helically
- B29C63/10—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding helically around tubular articles
- B29C63/105—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding helically around tubular articles continuously
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
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Abstract
The invention provides a manufacturing process of a polyurethane heat-insulating pipe, which is manufactured by adopting the following equipment, wherein the equipment comprises a base and a winding device, the base is in an L-shaped structure, the lower end of the base is connected with the existing ground, and the winding device is arranged at the upper end of the base.
Description
Technical Field
The invention relates to the field of polyurethane heat-insulating pipes, in particular to a manufacturing process of a polyurethane heat-insulating pipe.
Background
The polyurethane thermal insulation pipe is formed by foaming a high-function polyether polyol composite material and multi-methyl polyphenyl polyisocyanate as raw materials through chemical reaction, and is used for thermal insulation and cold insulation engineering of indoor and outdoor various pipelines, centralized heat supply pipelines, central air-conditioning pipelines, chemical industry, medicine and other industrial pipelines, and the polyurethane thermal insulation pipe mainly comprises the following components: a protective shell: high-density polyethylene or glass fiber reinforced plastic is adopted; insulating layer: rigid polyurethane foam is adopted; working steel pipes: according to the technical requirements of a conveying medium, a seam steel pipe, a seamless steel pipe and a double-sided submerged arc spiral welding steel pipe are respectively adopted, most of polyurethane thermal insulation pipes are formed by tightly combining a steel pipe for conveying the medium, a high-density polyethylene outer sleeve and a rigid polyurethane foam thermal insulation layer between the steel pipe and the outer sleeve, so that a plastic shell and the steel pipe are required to be combined in the process of manufacturing the polyurethane thermal insulation pipes, but the existing polyurethane thermal insulation pipe manufacturing equipment has the following problems when the plastic shell and the steel pipe are combined in a winding way:
1. in the process of manufacturing the polyurethane thermal insulation pipe by using the conventional polyurethane thermal insulation pipe manufacturing equipment, the steel pipe is easy to shift and shake, so that the combination between the plastic shell and the steel pipe is very difficult, the automation degree is low, and the manufacturing efficiency of the polyurethane thermal insulation pipe is reduced;
2. the existing polyurethane heat-insulating pipe manufacturing equipment can only manufacture the polyurethane heat-insulating pipe of one specification, so that the application range of the equipment is small, and in the process of winding and combining the plastic shell and the steel pipe, the tension degree of winding of the plastic shell cannot be adjusted to cause uneven winding thickness, and further the quality of finished products of the polyurethane heat-insulating pipe is influenced.
Disclosure of Invention
In order to solve the problems, the invention provides a manufacturing process of a polyurethane heat-insulating pipe, which adopts the following equipment for manufacturing, wherein the equipment comprises a base and a winding device, the base is in an L-shaped structure, the lower end of the base is connected with the existing ground, and the winding device is arranged at the upper end of the base.
The winding device comprises a fixed plate, a transverse shaft, a plastic material roll, a supporting plate, a fixed shaft, a sleeve, a fixed module and a rotating unit, wherein the fixed plate is arranged at the left end of the upper end surface of the base, the upper end of the right end surface of the fixed plate is rotatably connected with the transverse shaft, the plastic material roll is arranged at the right end of the transverse shaft, the supporting plate is arranged at the rear side of the fixed plate and is symmetrically arranged in the left and right directions, the lower end of the supporting plate is connected with the base in a sliding fit manner, the fixed shaft is arranged between the right end surface of the fixed plate and the supporting plates which are right opposite to the left and right, the fixed shaft connected with the fixed plate is positioned below the transverse shaft, the outer wall of the fixed shaft is sleeved with the cylinder in a rotating fit manner, the fixed module is arranged at the right side of, and fix through fixed module, then will be used for making the plastics of polyurethane insulating tube shell and make the plastic material book and install on the cross axle through artifical mode, pass through the sleeve with the head end of plastic material book and make it be in vertical state and steel pipe surface laminating, it is rotatory to make fixed module through the rotary unit at last, fixed module drives the steel pipe and carries out synchronous revolution, can pull the plastic material book when the steel pipe is rotatory and unreel the action and drive plastics and carry out rotatory winding on the steel pipe surface, thereby can realize the function of automatic winding in the steel pipe surface with plastic housing, need not artifical winding, the preparation efficiency of polyurethane insulating tube has been improved.
When the equipment is adopted to manufacture the polyurethane thermal insulation pipe, the method specifically comprises the following steps:
s1, equipment checking: before starting the equipment to manufacture the polyurethane insulating pipe, the running of the equipment is checked;
s2, material preparation: manually placing a steel pipe for manufacturing the polyurethane heat-insulating pipe on a fixing module, fixing the steel pipe by the fixing module, manually manufacturing plastic for manufacturing a shell of the polyurethane heat-insulating pipe into a plastic coil and installing the plastic coil on a cross shaft, and enabling the head end of the plastic coil to pass through a sleeve and be in a vertical state to be attached to the surface of the steel pipe;
s3, winding: the fixing module is rotated through the rotating unit, the fixing module drives the steel pipe to synchronously rotate, so that the plastic coils are wound on the surface of the steel pipe, the steel pipe does uniform linear motion while rotating, and the plastic shell comprehensively winds the surface of the steel pipe;
s4, adjusting: in the winding process, the support plate can be moved to drive the fixed shaft and the sleeve to synchronously move, so that the tension degree of the plastic shell is adjusted;
s5, repeat S2-S4: and repeating the operations in the steps S2-S4 until all the polyurethane heat-insulating pipes in the batch are manufactured, then carrying out centralized inspection, and storing the polyurethane heat-insulating pipes meeting the quality requirements in a warehouse.
As a preferred technical scheme of the invention, the fixing module comprises a vertical plate, a movable plate, a fixing rod, a disc, a ring gear, a cross rod, a ring, an air bag and an arc block, the vertical plate and the movable plate are sequentially arranged at the upper end of the base from left to right, the vertical plate is positioned at the right side of the fixing plate, the fixing rod is installed at the inner side end surface of the movable plate, the disc is installed at the left end of the fixing rod, an annular groove is formed in the left end surface of the disc, the ring gear is connected in the annular groove in a rotating fit mode, the cross rod is symmetrically installed at the front and back of the inner side end surface of the ring gear, the ring is installed between the front and back opposite cross rods and at the upper end of the vertical plate, the arc air bag is installed at the bottom end of the inner side end surface of the ring at the upper end of, then through mutually supporting between riser, ring and the circular arc piece, can support the left end of steel pipe and can not lead to the fact the influence to the rotation and the removal of steel pipe, simultaneously through filling the gassing to the gasbag inside, can change the gasbag size to change the distance between circular arc piece and the ring, so that support the steel pipe of different diameters size, increase the application scope of this equipment.
As a preferred technical scheme of the invention, the rotating unit comprises a gear, a rotating shaft, a motor and an L-shaped plate, the upper end of the ring gear is engaged with the gear, the right end of the gear is provided with the rotating shaft, the right end of the rotating shaft penetrates through the movable plate to the right side of the movable plate, the rotating shaft is in running fit with the inner wall of the movable plate, the right end of the rotating shaft is provided with the motor, the right end of the motor is provided with the L-shaped plate, the left end of the L-shaped plate is connected with the right end face of the movable plate, the rotating shaft is driven by the motor to rotate, the gear drives the ring gear to perform synchronous rotating motion, and the ring gear drives the cross rod and the circular ring to perform.
According to the preferable technical scheme, threaded holes are symmetrically formed in the upper end and the lower end of the ring inside the ring gear, bolts are connected in the threaded holes in a threaded matching mode, arc-shaped limiting blocks are installed at the lower ends of the bolts, nuts are connected to the outer wall of the bolts in a threaded mode, the fixing effect of the steel pipes can be better due to the fact that the bolts, the nuts and the limiting blocks are matched with each other, the nuts can be unscrewed manually, the bolts and the limiting blocks can be adjusted, the steel pipes with different diameters can be fixed, the equipment can be made into polyurethane heat-insulating pipes with different specifications, and the practicability of the equipment is improved.
As a preferred technical scheme of the invention, a rectangular plate is arranged between the inner side end faces of the supporting plates, the rectangular plate is positioned below the fixed shaft, an electric push rod is arranged at the rear end of the rectangular plate, an installation plate in a rectangular structure is arranged at the rear end of the electric push rod, the lower end of the installation plate is connected with the upper end face of the base, the rectangular plate is driven by the electric push rod to do linear motion, the supporting plates are driven by the rectangular plate to do synchronous linear motion, and the supporting plates can drive the fixed shaft and the sleeve to do synchronous linear motion, so that the function of adjusting the tension of the plastic roll in the winding process can be realized, the phenomenon that the plastic roll becomes thin to cause inconsistent winding tension in the winding process, the winding is not uniform, and the winding effect is poor is avoided.
As a preferable technical scheme of the invention, the end surface of the inner side of the fixing plate is provided with a circular through groove, and the influence of the fixing plate on the moving process of the steel pipe can be avoided by arranging the through groove.
As a preferred technical scheme of the invention, the lower end of the inner side end surface of the movable plate is provided with a round hole in a threaded structure, a threaded rod is connected in the round hole in a threaded matching mode, the left end of the threaded rod is rotationally connected with the right end surface of the vertical plate, a rotating rod is arranged at the left end of the threaded rod, the rotating rod is positioned at the left end of the vertical plate, a belt is sleeved between the outer wall of the rotating rod and the outer wall of the transverse shaft, when the steel pipe rotates, the plastic coil can be driven to rotate, the transverse shaft is driven to synchronously rotate when the plastic coil rotates, under the action of the belt, the transverse shaft drives the rotating rod to do synchronous rotation motion, the rotating rod drives the threaded rod to do synchronous rotation motion, the threaded rod drives the movable plate to do linear motion, therefore, the function that the steel pipe can move while rotating can be realized, so that the plastic shell can be wound and covered on the surface of the steel pipe in a whole.
As a preferred technical solution of the present invention, the front end of the upper end surface of the base is provided with a long groove, the lower end of the movable plate is slidably fitted in the long groove and the base, and the movable plate can be moved conveniently and the structures such as the movable plate are more stable by the long groove.
The invention has the beneficial effects that:
according to the invention, the right end of the steel pipe can be fixed through the mutual matching among the movable plate, the cross rod, the disc, the ring gear and the circular ring, and then the left end of the steel pipe can be supported through the mutual matching among the vertical plate, the circular ring and the circular arc block, so that the function of fixing and supporting the steel pipe is realized, and the low manufacturing efficiency of the polyurethane heat-insulating pipe caused by the deviation and the shaking of the steel pipe in the process of combining with the plastic shell is avoided;
the motor, the rotating shaft, the gear and the ring gear are mutually matched, so that the ring gear drives the cross rod and the circular ring to synchronously rotate, the function of automatic rotation of the steel pipe can be realized, the plastic coil can be pulled to unreel and drive the plastic to rotate and wind on the surface of the steel pipe when the steel pipe rotates, the function of automatically winding the plastic shell on the surface of the steel pipe can be realized, manual winding is not needed, and the manufacturing efficiency of the polyurethane heat-insulating pipe is improved;
the supporting plate drives the fixed shaft and the sleeve to do synchronous linear motion through mutual matching of the electric push rod, the rectangular plate and the supporting plate, so that the function of adjusting the tension of the plastic roll in the winding process can be realized, and the conditions of uneven winding and poor winding effect caused by inconsistent winding tension due to thinning of the plastic roll in the winding process are avoided;
the rotating rod, the belt and the transverse shaft are matched with each other, when the steel pipe rotates, the plastic belt can drive the transverse shaft and the rotating rod to synchronously rotate, the rotating rod is matched with the threaded rod, and the movable plate linearly moves, so that the function that the steel pipe can move while rotating can be realized, and the plastic shell can be conveniently wound and covered on the surface of the steel pipe comprehensively;
fifthly, the fixing effect of the steel pipes can be better through the mutual matching among the bolts, the nuts and the limiting blocks, the nuts can be unscrewed manually, the bolts and the limiting blocks can be adjusted, so that the steel pipes with different diameters can be fixed, the equipment can be used for manufacturing polyurethane heat-insulating pipes with different specifications, and the practicability of the equipment is improved
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic process flow diagram of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a rear view of the present invention;
FIG. 5 is a top view of the present invention;
FIG. 6 is a perspective view of a portion of the present invention;
fig. 7 is a side view of a partial structure of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in fig. 1 to 7, the manufacturing process of the polyurethane heat-insulating pipe adopts the following equipment to manufacture, the equipment comprises a base 1 and a winding device 2, the base 1 is in an L-shaped structure, the lower end of the base 1 is connected with the existing ground, and the winding device 2 is installed at the upper end of the base 1.
The front end of the upper end surface of the base 1 is provided with a long groove 11, the lower end of the movable plate 261 is in sliding fit with the base 1 in the long groove 11, and the movable plate 261 can be moved conveniently and the structures of the movable plate 261 and the like are more stable by the arrangement of the long groove 11.
The winding device 2 comprises a fixed plate 20, a transverse shaft 21, a plastic roll 22, a support plate 23, a fixed shaft 24, a sleeve 25, a fixed module 26 and a rotating unit 27, wherein the fixed plate 20 is installed at the left end of the upper end surface of the base 1, the transverse shaft 21 is rotatably connected to the upper end of the right end surface of the fixed plate 20, the plastic roll 22 is installed at the right end of the transverse shaft 21, the support plate 23 is arranged at the rear side of the fixed plate 20, the support plates 23 are symmetrically arranged in the left-right direction, the lower ends of the support plates 23 are connected with the base 1 in a sliding fit manner, the fixed shaft 24 is installed between the right end surface of the fixed plate 20 and the left-right opposite support plates 23, the fixed shaft 24 connected with the fixed plate 20 is positioned below the transverse shaft 21, the sleeve 25 is sleeved on the outer wall of the fixed shaft 24 in a rotating fit manner, the fixed module 26, will be used for making the steel pipe of polyurethane insulating tube to place on fixed module 26 through the manual mode, and fix through fixed module 26, then will be used for making the plastics of polyurethane insulating tube shell and make plastic material book 22 and install on cross axle 21 through the manual mode, pass through sleeve 25 with the head end of plastic material book 22 and make it be in vertical state and steel pipe surface laminating, it is rotatory to make fixed module 26 through rotary unit 27 at last, fixed module 26 drives the steel pipe and carries out synchronous revolution, can pull plastic material book 22 when the steel pipe is rotatory and unreel the action and drive plastics and carry out rotatory winding on the steel pipe surface, thereby can realize the function of automatic winding in the steel pipe surface of plastic housing, need not artifical winding, the preparation efficiency of polyurethane insulating tube has been improved.
The end face of the inner side of the fixing plate 20 is provided with a circular through groove 201, and the influence of the fixing plate 20 on the moving process of the steel pipe can be avoided by arranging the through groove 201.
The inboard terminal surface of backup pad 23 between install rectangular plate 231, rectangular plate 231 is located the below of fixed axle 24, and electric putter 232 is installed to the rear end of rectangular plate 231, electric putter 232's rear end is installed and is the mounting panel 233 of rectangle structure, the lower extreme of mounting panel 233 links to each other with base 1's up end, it is rectilinear motion to drive rectangular plate 231 through electric putter 232, rectangular plate 231 drives backup pad 23 and is synchronous rectilinear motion, backup pad 23 can drive fixed axle 24 and sleeve 25 and be synchronous rectilinear motion, thereby can realize the function of adjusting the rate of tension of winding in-process plastics book 22, in order to avoid at winding in-process, plastics book 22 thinnings and leads to the winding rate of tension inconsistent, and then the winding is inhomogeneous, the not good condition of winding effect appears.
The fixed module 26 comprises a vertical plate 260, a movable plate 261, a fixed rod 262, a disc 263, a ring gear 264, a cross rod 265, a ring 266, an air bag 267 and an arc block 268, wherein the vertical plate 260 and the movable plate 261 are sequentially arranged at the upper end of the base 1 from left to right, the vertical plate 260 is positioned at the right side of the fixed plate 20, the fixed rod 262 is installed on the inner side end surface of the movable plate 261, the disc 263 is installed at the left end of the fixed rod 262, an annular groove is formed in the left end surface of the disc 263, the ring gear 264 is connected in the annular groove in a rotating fit mode, the cross rod 265 is symmetrically installed in front and back of the inner side end surface of the ring gear 264, the ring 266 is installed between the front and back opposite cross rods 265 and at the upper end of the vertical plate 260, the arc-shaped air bag 267 is installed at the bottom end of, The right-hand member of steel pipe can be fixed in the cooperation each other between ring gear 264 and the ring 266, then through the cooperation each other between riser 260, ring 266 and the circular arc piece 268, can support the left end of steel pipe and can not lead to the fact the influence to the rotation and the removal of steel pipe, simultaneously through inflating the gassing to gasbag 267 inside, can change gasbag 267 size, thereby change the distance between circular arc piece 268 and the ring 266, so that support the steel pipe of different diameters size, increase the application scope of this equipment.
The lower end of the inner side end surface of the movable plate 261 is provided with a round hole in a threaded structure, a threaded rod 26d is connected in the round hole in a threaded matching mode, the left end of the threaded rod 26d is rotatably connected with the right end surface of the vertical plate 260, and the left end of the threaded rod 26d is provided with a rotating rod 26e, the rotating rod 26e is positioned at the left end of the vertical plate 260, and a belt 26f is sleeved between the outer wall of the rotating rod 26e and the outer wall of the transverse shaft 21, when the steel pipe rotates, can drive the plastic roll 22 to rotate, the plastic roll 22 drives the transverse shaft 21 to do synchronous rotation motion when rotating, under the action of the belt 26f, the horizontal shaft 21 drives the rotating rod 26e to perform synchronous rotation, the rotating rod 26e drives the threaded rod 26d to perform synchronous rotation, the threaded rod 26d drives the movable plate 261 to perform linear motion, therefore, the function that the steel pipe can move while rotating can be realized, so that the plastic shell can be wound and covered on the surface of the steel pipe in a whole.
The inside ring 266's of ring gear 264 upper and lower both ends symmetry set up threaded hole, threaded hole is connected with bolt 26a through the screw-thread fit mode, curved stopper 26b is installed to bolt 26 a's lower extreme, bolt 26 a's outer wall threaded connection has nut 26c, through bolt 26a, mutually support between nut 26c and the stopper 26b, can make the fixed effect of steel pipe better, and nut 26c is unscrewed to the artifical mode of accessible, adjust bolt 26a and stopper 26b, so that fix the steel pipe of different diameters, thereby can make this equipment produce the polyurethane insulating tube of different specifications, the practicality of this equipment has been improved.
The rotating unit 27 comprises a gear 271, a rotating shaft 272, a motor 273 and an L-shaped plate 274, the upper end of the ring gear 264 is engaged with the gear 271, the rotating shaft 272 is installed at the right end of the gear 271, the right end of the rotating shaft 272 penetrates through the movable plate 261 to the right side of the movable plate 261, the rotating shaft 272 is in running fit with the inner wall of the movable plate 261, the motor 273 is installed at the right end of the rotating shaft 272, the L-shaped plate 274 is installed at the right end of the motor 273, the left end of the L-shaped plate 274 is connected with the right end face of the movable plate 261, the rotating shaft 272 is driven to rotate by the motor 273, the rotating shaft 272 drives the gear 271 to perform synchronous rotating motion, the ring gear 264 is driven to perform synchronous rotating motion, the ring gear 264 drives the.
When the equipment is adopted to manufacture the polyurethane thermal insulation pipe, the method specifically comprises the following steps:
s1, equipment checking: before starting the equipment to manufacture the polyurethane insulating pipe, the running of the equipment is checked;
s2, material preparation: manually placing a steel pipe for manufacturing the polyurethane heat-insulating pipe on a fixing module 26, fixing the steel pipe by the fixing module 26, manually manufacturing plastic for manufacturing a shell of the polyurethane heat-insulating pipe into a plastic coil 22, installing the plastic coil 22 on a transverse shaft 21, and enabling the head end of the plastic coil 22 to pass through a sleeve 25 and be in a vertical state to be attached to the surface of the steel pipe;
s3, winding: the fixing module 26 is rotated by the rotating unit 27, the fixing module 26 drives the steel pipe to synchronously rotate, the plastic coil 22 is wound on the surface of the steel pipe, the steel pipe does uniform linear motion while rotating, and the plastic shell is used for comprehensively winding the surface of the steel pipe;
s4, adjusting: in the winding process, the support plate 23 can be moved, so that the support plate 23 drives the fixed shaft 24 and the sleeve 25 to synchronously move, and the tension degree of the plastic shell is adjusted;
s5, repeat S2-S4: and repeating the operations in the steps S2-S4 until all the polyurethane heat-insulating pipes in the batch are manufactured, then carrying out centralized inspection, and storing the polyurethane heat-insulating pipes meeting the quality requirements in a warehouse.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The manufacturing process of the polyurethane heat-insulating pipe adopts the following equipment, and the equipment comprises a base (1) and a winding device (2), and is characterized in that: the base (1) is of an L-shaped structure, the lower end of the base (1) is connected with the existing ground, and the upper end of the base (1) is provided with a winding device (2);
the winding device (2) comprises a fixing plate (20), a transverse shaft (21), a plastic material coil (22), a supporting plate (23), a fixing shaft (24), a sleeve (25), a fixing module (26) and a rotating unit (27), wherein the fixing plate (20) is installed at the left end of the upper end face of the base (1), the transverse shaft (21) is rotatably connected to the upper end of the right end face of the fixing plate (20), the plastic material coil (22) is installed at the right end of the transverse shaft (21), the supporting plate (23) is arranged at the rear side of the fixing plate (20), the supporting plates (23) are symmetrically arranged in the left-right direction, the lower end of the supporting plate (23) is connected with the base (1) in a sliding fit mode, the fixing shaft (24) is installed between the right end face of the fixing plate (20) and the supporting plate (23) which is right and left-right opposite, the fixing shaft (24) is located below the transverse shaft, a fixing module (26) is arranged on the right side of the fixing plate (20), the fixing module (26) is positioned below the fixing shaft (24), and a rotating unit (27) is arranged at the upper end of the fixing module (26);
when the equipment is adopted to manufacture the polyurethane thermal insulation pipe, the method specifically comprises the following steps:
s1, equipment checking: before starting the equipment to manufacture the polyurethane insulating pipe, the running of the equipment is checked;
s2, material preparation: manually placing a steel pipe for manufacturing the polyurethane heat-insulating pipe on a fixing module (26), fixing the steel pipe by the fixing module (26), manually manufacturing plastic for manufacturing a shell of the polyurethane heat-insulating pipe into a plastic coil (22) and installing the plastic coil on a transverse shaft (21), and enabling the head end of the plastic coil (22) to be in a vertical state to be attached to the surface of the steel pipe through a sleeve (25);
s3, winding: the fixed module (26) is rotated through the rotating unit (27), the fixed module (26) drives the steel pipe to synchronously rotate, the plastic coil (22) is wound on the surface of the steel pipe, the steel pipe does uniform linear motion while rotating, and the plastic shell is used for comprehensively winding the surface of the steel pipe;
s4, adjusting: in the winding process, the support plate (23) can be moved, so that the support plate (23) drives the fixed shaft (24) and the sleeve (25) to synchronously move, and the tension degree of the plastic shell is adjusted;
s5, repeat S2-S4: and repeating the operations in the steps S2-S4 until all the polyurethane heat-insulating pipes in the batch are manufactured, then carrying out centralized inspection, and storing the polyurethane heat-insulating pipes meeting the quality requirements in a warehouse.
2. The manufacturing process of polyurethane thermal insulation pipe according to claim 1, wherein: the fixed module (26) comprises a vertical plate (260), a movable plate (261), a fixed rod (262), a disc (263), a ring gear (264), a cross rod (265), a ring (266), an air bag (267) and an arc block (268), wherein the vertical plate (260) and the movable plate (261) are sequentially arranged at the upper end of the base (1) from left to right, the vertical plate (260) is positioned at the right side of the fixed plate (20), the fixed rod (262) is installed on the inner side end face of the movable plate (261), the disc (263) is installed at the left end of the fixed rod (262), an annular groove is formed in the left end face of the disc (263), the ring gear (264) is connected in the annular groove in a rotating fit mode, the cross rod (265) is symmetrically installed in the front and back of the inner side end face of the ring gear (264), the ring (266) is installed between the front and back opposite cross rods (265) and at the upper end of the vertical, an arc block (268) is arranged at the upper end of the air bag (267).
3. The manufacturing process of polyurethane thermal insulation pipe according to claim 2, wherein: the rotary unit (27) comprises a gear (271), a rotating shaft (272), a motor (273) and an L-shaped plate (274), wherein the gear (271) is meshed at the upper end of the ring gear (264), the rotating shaft (272) is installed at the right end of the gear (271), the right end of the rotating shaft (272) penetrates through the movable plate (261) to the right side of the movable plate (261), the rotating shaft (272) is in running fit with the inner wall of the movable plate (261), the motor (273) is installed at the right end of the rotating shaft (272), the L-shaped plate (274) is installed at the right end of the motor (273), and the left end of the L-shaped plate (274) is connected with the right end face.
4. The manufacturing process of polyurethane thermal insulation pipe according to claim 2, wherein: threaded holes are symmetrically formed in the upper end and the lower end of a circular ring (266) in the ring gear (264), a bolt (26a) is connected in the threaded hole in a thread matching mode, an arc-shaped limiting block (26b) is installed at the lower end of the bolt (26a), and a nut (26c) is connected to the outer wall of the bolt (26a) in a threaded mode.
5. The manufacturing process of polyurethane thermal insulation pipe according to claim 1, wherein: the support plate is characterized in that a rectangular plate (231) is installed between the end faces of the inner sides of the support plates (23), the rectangular plate (231) is located below the fixed shaft (24), an electric push rod (232) is installed at the rear end of the rectangular plate (231), an installation plate (233) which is of a rectangular structure is installed at the rear end of the electric push rod (232), and the lower end of the installation plate (233) is connected with the upper end face of the base (1).
6. The manufacturing process of polyurethane thermal insulation pipe according to claim 1, wherein: the end surface of the inner side of the fixing plate (20) is provided with a circular through groove (201).
7. The manufacturing process of polyurethane thermal insulation pipe according to claim 2, wherein: the lower extreme of the medial surface of fly leaf (261) offer the round hole that is helicitic texture, be connected with threaded rod (26d) through screw-thread fit in the round hole, the left end of threaded rod (26d) is rotated with the right-hand member face of riser (260) and is connected, and dwang (26e) are installed to the left end of threaded rod (26d), dwang (26e) are located the left end of riser (260), and the cover is equipped with belt (26f) between the outer wall of dwang (26e) and the outer wall of cross axle (21).
8. The manufacturing process of polyurethane thermal insulation pipe according to claim 2, wherein: the front end of the upper end face of the base (1) is provided with a long groove (11), and the lower end of the movable plate (261) is in sliding fit with the base (1) in the long groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110086302.5A CN112917889B (en) | 2021-01-22 | 2021-01-22 | Manufacturing process of polyurethane heat-insulation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110086302.5A CN112917889B (en) | 2021-01-22 | 2021-01-22 | Manufacturing process of polyurethane heat-insulation pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117840771A (en) * | 2023-12-27 | 2024-04-09 | 德清卡诺晶体纤维有限公司 | PECVD and boron expansion heating furnace inner core manufacturing device and production process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206733584U (en) * | 2017-05-17 | 2017-12-12 | 大连开元管道有限公司 | A kind of wind for the outer layer polyethylene anticorrosive coat being used in insulating tube |
| CN210849037U (en) * | 2019-11-15 | 2020-06-26 | 青岛东方铁塔股份有限公司 | Welding fixing device for steel pipe machining |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206733584U (en) * | 2017-05-17 | 2017-12-12 | 大连开元管道有限公司 | A kind of wind for the outer layer polyethylene anticorrosive coat being used in insulating tube |
| CN210849037U (en) * | 2019-11-15 | 2020-06-26 | 青岛东方铁塔股份有限公司 | Welding fixing device for steel pipe machining |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117840771A (en) * | 2023-12-27 | 2024-04-09 | 德清卡诺晶体纤维有限公司 | PECVD and boron expansion heating furnace inner core manufacturing device and production process thereof |
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