KR20040064111A - The manufacture metallic pattern structure of urethane piping lagging - Google Patents

Abstract

PURPOSE: A mold structure for manufacturing urethane piping lagging materials is provided to mass produce, in an equal quality, the lagging materials formed as one with an inner pipe endurable against an intense heat, urethane a heat insulating layer and heat insulating finishing material coated in a specific color, to enable the removed foamed urethane to be recycled. CONSTITUTION: The mold structure for manufacturing urethane piping lagging materials is characterized in that, when connecting a lower mold(10a) and an upper mold(10b), each semicircular groove(13,13a) forms a cylindrical cavity of a mold(10); a sliding rod(20,20a) at a regular length is buried to be movable forward and backward in a guide groove formed in the lower mold; each insertion/fixture hole(30,30a) is insert-formed to be one body with the sliding rod. The insertion fixture is provided with a circular vertical main wall(31,31a) insert-forming a circular main wall(32,32a) which includes a slant, an inner circumferential surface, an outer circumferential wall surface(35,35a) and horizontal projection members(36,36a).

Description

The manufacture metallic pattern structure of urethane piping lagging}

The present invention relates to a heat insulating material manufacturing mold structure for manufacturing a heat insulating material to be installed on the outer peripheral surface of the pipe in order to heat the pipe to be constructed in various factories, buildings, etc., in particular, the heat insulation and moldability on the outer peripheral surface of the branch pipe The urethane-based structure is provided with a heat insulating layer formed by foaming urethane to a predetermined thickness on the outer circumferential surface of a pipe (kraft paper, etc.) having the same inner diameter as the pipe pipe outer diameter, and the aluminum sheet is wound on the outer circumferential surface of the urethane heat insulating layer. It relates to a mold structure for manufacturing a heat insulating material having an integral bar, the conventional pipe heat insulating material is a simple molding of a heat insulating material having an inner diameter that becomes a half circle of half the outer diameter of a styro polo pipe of a predetermined thickness to form two such semi-circular heat insulating material to the pipe outer peripheral surface Then treat each other with a plastic tape, etc. The pipe line was insulated in a spiral manner to fix the spiral, and at this time, the semi-circular heat insulating material made of styropol was manufactured by a general molding die.

In order to insulate a conventional pipe line, the insulation material of styropole material, which is a half-circle inner diameter, which is half of the pipe outer diameter, is molded and manufactured.Then, when the pipe insulation work is carried out, it is welded to each other on the outer peripheral surface of the pipe. As the pipes of each pipeline should be fixed by hand, the pipes of each pipeline must be fixed by hand, so it is difficult to secure inconveniences and uniformity of construction during a lot of time and height work, and it is a narrow space, especially a gap between a wall and a pipe. If it is narrow, the tapering of vinyl tape is very difficult problems.

Figure 1 is a perspective view of the finished urethane pipe insulation prepared by the urethane pipe insulation material manufacturing apparatus configured in accordance with the present invention.

Figure 2 is an exploded perspective view of the urethane piping insulation material manufacturing apparatus configured according to the present invention.

Figure 3 is inserted into one side (right) end of the branch pipe in the state in which the upper mold of the heat insulating material manufacturing apparatus according to the present invention in the open state and the one side (right) of the paper tube insertion fixing part in close contact with the lower mold. Sectional drawing of the A-A 'line position in FIG. 1 which shows the state inserted into the branch pipe insertion groove of a fixed part.

Figure 4 is a cross-sectional view of the line A-A 'position of the one side (right) end of the insulating material outer peripheral surface finishing material is inserted into the finishing material insertion groove of the branch pipe fixing part in a state in which the outer space of the paper pipe is spaced at a predetermined interval in FIG.

Figure 5 is a cross-sectional view of the state of injecting urethane provided on the other branch pipe insert fixture after mounting the outer pipe and the insulating material outer circumferential surface and the upper mold is molded to the lower mold and then closely adhered to the other branch pipe insert fixture on the one end (left).

Figure 6 is a state in which the urethane injection and foaming is completed, and then, both sides of the branch pipe insertion fixing part which was sealing the left and right sides of the mold moved to their original positions, respectively.

Figure 7 is a conceptual diagram of the state of releasing the urethane foam molded thermal insulation material semi-released from the mold by reopening the upper mold or molded.

Figure 8 is a cross-sectional view of a state in which finished production of the finished product by cutting both ends of the semi-finished product insulation prepared by the urethane pipe insulation material manufacturing apparatus configured in accordance with the present invention.

<Code Description of Main Parts of Drawing>

1. Insulation material 2. Branch pipe 3. Insulation layer 4. Insulation finish material

10. Manufacturing mold 10a. Lower mold 10b. Prize

11. Expectations 12. Top 13,13a. Semicircle Home

20,20a. Sliding rod 21,21a. Guide groove 30,30a. Insertion fixture

31,31a. Vertical walls 32,32a. Circular walls 33,33a. incline

34,34a. Inner wall 35,35a. Outer wall 36,36a. Horizontal protrusion

37,37a. Taper part 38. Urethane injection hole 39. Air exhaust hole

40,40. Sealing rubber 41. Urethane 42. Urethane discharge nozzle

c, c '. gap

In order to solve the various problems as described above, the present invention does not require a separate taping operation, when manufacturing a heat insulating material molding, such as an aluminum sheet in a beautiful appearance, such as a pre-wound and heat-resistant insulated finishing materials are wound in advance (for example, steam It is about the invention of the mold structure which can mass-produce the heat insulation material of the structure in which the branch pipe which consists of kraft material which is a heat-resistant material which can withstand high heat enough, such as 120 degreeC or more high temperature) is laminated integrally on the inner peripheral surface of a urethane layer. On the basis of the accompanying drawings, the structure of the mold for producing a urethane pipe insulation is as follows.

1 is a urethane foam insulation layer (3) filled in a predetermined thickness on the outer circumferential surface of the heat-resistant branch pipe (2) of a predetermined diameter manufactured using a urethane piping insulation material manufacturing mold (10) structure configured in accordance with the present invention. As a partially cut-away perspective view showing the finished product of the pipe insulation material 1 of constant length in which the lamination and the insulation finish material 4 made of aluminum sheets were integrally wound so as to have a beautiful appearance on the outer surface of the heat insulation layer 3. The structural configuration of the thermal insulation material manufacturing mold 10 capable of mass-producing the thermal insulation finish material 4 having the structure described above is in the middle surface of the upper surface 12 in the longitudinal direction of the base 11 in the longitudinal direction of the base 11 of the predetermined height. The lower die 10a, which is a rectangular parallelepiped body in which a semi-circular groove 13 having a constant diameter is formed in the indentation in a state in which the left and right are opened, is fixed in position and the lower die 10a on one side edge of the lower die 10a in the longitudinal direction. Structure symmetric with This upper mold 10b is made by allowing one side edge side of the upper mold 10b, which is formed of a cuboid body in which the semi-circular groove 13a is formed into a recess, to be utterly spoken by a plurality of hinges 14 (two in the drawing). When combined with the mold 10b, each of the semi-circular grooves 13 and 13a recessed in the upper and lower molds 10b and 10a, respectively, becomes a cylindrical cavity of the mold 10 implemented according to the present invention. The guide grooves 21 and 21a in which the sliding rods 20 and 20a of a predetermined length are respectively symmetrically symmetrically formed on the left and right front end middle portions of the lower die 10a body configured as described above. ) Is embedded in the retracted freely, the left and right sliding rods (20, 20a) to the outer end of each branch insertion fixture 30, 30a is installed integrally with the sliding rods (20, 20a), each branch insertion The common structure of the fixtures 30 and 30a is that the disk-shaped vertical circumferential walls 31 and 31a have sliding rods 20 and 20a. Circular circumferential walls 32 and 32a are placed on the upper surface, respectively, having circular circumferential walls 32 and 32a each having an outer circumferential surface with a diameter slightly smaller than the diameter of the upper and lower (10b) and 10a molds.

The inner and outer circumferential surfaces of each tip of the tip 32a have inclined surfaces 33 and 33a, respectively, and the thicknesses of the inner circumferential wall surfaces 34, 34a and the branch pipes 2 of the circular circumferential walls 32 and 32a, respectively. The horizontal protrusions 36 and 36a having the circular outer circumferential wall surfaces 35 and 35a to maintain the same clearance c are slightly longer than the lengths of the circular circumferential walls 32 and 32a. 36) (36a) the tip forms a tapered portion 37 (37a) and the circular peripheral wall of the branch insertion insert (30 in the drawing) of any one of the branch insertion inserts (30, 30a) on the left and right sides of the structure ( 32) and the urethane injection hole 38 penetrating the disk-shaped vertical circumferential wall 31 and the air discharge hole 39 penetrating the circular circumferential wall 32 and the disk-shaped vertical circumferential wall 31 in another position In addition, when the upper and lower molds (10b) and (10a) and the branch pipe inserting fixture (31a) are combined, the semicircular grooves (13, 13a) of the upper and lower molds (10b) and (10a) The gap (c ') Hayeoseo so that the entire structure of the urethane pipe insulation manufacturing mold which is performed in the present invention is configured.

Unexplained reference numerals 40 and 40a in the drawing are rubber rings for sealing to prevent leakage while the liquid urethane is foamed. And 41 is urethane and 42 is urethane discharge nozzle.

When manufacturing the pipe insulation material 1 as the urethane pipe insulation material manufacturing mold carried out in the present invention configured as described above, the lower mold (10a) and the upper mold (10b) and the left and right of the branch pipe insertion fixture (right side in the drawing) When the 30a is combined, the circular circumferential walls 32, 32a and the horizontal protrusion 36a of the branch insertion insert 30a are semi-circular grooves 13a, 13a of the upper and lower dies 10b, 10a. (B) A pre-prepared paper pipe in a state in which the disk-shaped vertical circumferential wall 31 of the paper pipe insertion fixing tool 30a is inserted into the upper and lower dies 10a and 10b, and the tip end portion of the semi-circular groove 13a formed in the recess is sealed. One end of 2) is inserted into the gap (c) between the circular circumference wall 32a and the circular outer circumference wall surface 35a of the branch pipe insertion fixture 30a, wherein the tip of the circular circumference wall 32a is an inclined surface 3 and is horizontal. The tip of the protruding section 36a also has a tapered portion 37a, so it is very easy to insert and fix the tip of the branch pipe 2, and the branch pipe 2 is included therein. Is coated with a specific color (depending on the type of pipe conveying material) with a beautiful appearance of the same diameter as the diameter of the semi-circular grooves 13 and 13a formed in the upper and lower molds 10b and 10a prepared in advance. One end of the cylindrical insulating finishing material 4, which is a sheet, is inserted into the gap c 'between the inner peripheral surface of the semi-circular grooves 13, 13a of the upper and lower molds 10b and 10a and the outer peripheral surface of the circular peripheral wall 32a. Then, when the sliding rods 20 and 20a on which the branch pipe inserting fixtures 30 of the other side are placed are consolidated with the guide grooves 21 provided in the lower die 10a, the sliding rods 20 and 20a are guided. The branch pipe inserting fixture 30 placed on the upper surface of the sliding rod 20, 20a is inserted into the groove 21, and the tip end of the other semicircular groove 13, 13a of the upper and lower molds 10b, 10a. At this time, the gap (c) between the circular circumference wall 32 and the horizontal projection gap 36 horizontally protruding from the disc-shaped vertical circumference wall 31 of the branch pipe insertion fixture 30 and the semi-circular groove (1) 3) (13a) The other ends of the branch pipe 2 and the heat insulating finish material 4 are inserted and fixed in the gap c 'between the inner circumferential surface and the circular circumferential wall 32, respectively, and thus the branch pipe 2 and the heat insulating finish material 4 Urethane to form a space portion of a certain distance between the urethane pipe insulation material manufacturing mold 10 configured in the present invention as described above, and then discharge the liquid urethane 41 in the form of a known fine bubble (Bubble) When the discharge nozzle 42 is inserted into the urethane injection hole 38 penetrating the disk-shaped vertical circumferential wall 31 and the circular circumferential wall 32 of the branch pipe insertion fixture 30, the liquid urethane 41 is discharged at a specific pressure. (41) is introduced into the space between the branch pipe (2) and the thermal insulation finish material (4), and the air filled in the space portion is exhausted to the outside of the mold through the air discharge hole (39) and when a constant temperature is applied after completion of injection Filled liquid urethane (41) is foamed between the branch pipe (2) and the heat insulating finish material (4) The space is uniformly filled. At this time, the branch pipe (2), the heat-insulating material (4), and the urethane (41) are bonded and integrated at the interfaces thereof. When the molding is completed, the upper and lower molds (10b) (10a) and the left and right tubes are inserted. Each of the fasteners 30 and 30a is released and the finished urethane pipe insulation 1 is demolded from the mold 10.

For reference, it is not limited to urethane as a heat insulating material.

As described above, the heat insulating material integrally formed with the paper tube 2 that can withstand high heat and the urethane heat insulating layer 3 having excellent heat insulating properties and the heat insulating material 4 coated with a specific color to have a beautiful appearance and know the kind of conveyed material (1) can be mass-produced with uniform quality and foamed urethane can be recycled when dismantled, and when constructing the insulating material (1) manufactured according to the present invention, a cutter such as a knife for working in the lengthwise direction of the insulating material (1) One side is cut and inserted into the pipe, then the incision is re-welded, stapled and finished with separately prepared aluminum adhesive tape of the same color, which maximizes work efficiency.

Claims (2)

The lower die 10a in which the semicircular groove 13 having a constant diameter in the middle of the upper surface 12 in the longitudinal direction of the base 11 in the longitudinal direction of the base 11 of the predetermined height is formed into a rectangular parallelepiped body in which the left and right sides are indented. One side edge side of the upper mold 10b, which is fixed in position and has a rectangular parallelepiped body in which a semi-circular groove 13a having a structure symmetrical with the lower mold 10a is formed on one side edge of the lower mold 10a in the longitudinal direction. When the upper mold 10b is combined with the lower mold 10b, the upper and lower molds 10b and 10a are inserted into the upper and lower molds 10a, respectively. Each semi-circular groove 13, 13a formed to be a cylindrical cavity (cavity) of the mold 10 is implemented in accordance with the present invention, each symmetrically in the middle portion of the lower mold 10a body left and right ends Sliding rods 20 and 20a of constant length are placed on the left and right sides of the lower die 10a. It is buried freely and retracted on the guide grooves 21 and 21a formed in the recesses, and the branch pipe inserting fixtures 30 and 30a are respectively provided at the outer ends of the left and right sliding rods 20 and 20a. In one piece, the common structure of each branch insertion fixture 30, 30a has a disc-shaped vertical circumferential wall 31, 31a on the upper and lower sides of the sliding rods 20, 20a. Circular circumferential walls 32 and 32a having outer circumferential surfaces of a diameter slightly smaller than the semi-circular grooves 13 and 13a of the respective grooves are placed, respectively, and the inner and outer circumferential surfaces of each end of the circular circumferential walls 32 and 32a are respectively inclined surfaces ( 33) 33a is formed and the circular outer circumferential wall 35 to maintain the clearance c equal to the thickness of the inner circumferential wall 34, 34a and the branch pipe 2 of each circular circumferential wall 32, 32a. Mold structure of urethane piping insulation material, characterized in that the horizontal projection between the (36) (36a) having a (35a) is slightly longer than the length of the circular circumferential wall (32, 32a). The tip of each of the horizontal protrusions 36 and 36a forms a tapered portion 37 and 37a, and the branch insertion insert of one of the left and right branch insertion inserts 30 and 30a of the structure. Urethane injection hole 38 penetrating the circular circumferential wall 32 and the disk-shaped vertical circumferential wall 31 of (30) is shown in the figure, and penetrates the circular circumferential wall 32 and the disk-shaped vertical circumferential wall 31 at another position. Each semicircle of the upper and lower molds 10b and 10a when the upper and lower molds 10b and 10a and the branch pipe inserting fixture 31a are combined together to form a structure for laying the air discharge holes 39 Urethane pipe insulation material manufacturing mold structure, characterized in that the clearance (c ') between the groove and the main wall (13, 13a) is maintained.