CN103658273A - Combined core mould and pipe fitting bending mould - Google Patents
Combined core mould and pipe fitting bending mould Download PDFInfo
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- CN103658273A CN103658273A CN201210335876.2A CN201210335876A CN103658273A CN 103658273 A CN103658273 A CN 103658273A CN 201210335876 A CN201210335876 A CN 201210335876A CN 103658273 A CN103658273 A CN 103658273A
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Abstract
The invention provides a combined core mould which is used for bending of a pipe fitting and placed in a central hole of the pipe fitting. The combined core mould at least comprises a middle core mould, a first side core mould and a second side core mould which are mutually independent, wherein the first side core mould and the second side core mould are symmetrically arranged at two sides of the middle core mould, and the central line of the middle core mould and a bending central line of a bending section of the pipe fitting coincide. The invention further provides a pipe fitting bending mould comprising the combined core mould. In the pipe bending process, the combined core mould can automatically adapt to the inner wall of a pipe blank according to the bending variation of the pipe fitting, plays a role in supporting, and intelligently guarantees the formation of the pipe fitting. The pipe fitting bending mould can guarantee a smooth bending process, realizes accurate formation in one shot, realizes accurate control over a bending angle simply and efficiently in the pipe bending process, is small in size, is simple to manufacture, and is convenient to install and detach.
Description
Technical field
The present invention relates to forming machine field, more specifically, relate to the composite core formwork that a kind of forming elbow is used, and with the crooked mould of pipe fittings of this core.
Background technology
In the forming process of the main pipeline heat pipe section of AP1000 and CAP1400, because pipe fitting size is larger, the pressure of required press is also very large, and on main pipeline, is also provided with two ozzles, cause in press-bending process the geometric parameter of pipe fitting bending section is controlled more difficult.Wherein, for crooked core, for the bending quality of pipe fitting, there is important function.
The core adopting in correlation technique mainly contains two kinds, a kind of as described in Chinese patent 200810306436.8, adopts at normal temperatures, and pipe fitting is filled 95% core, then a bending tube forming.Its shortcoming is mainly:
1. adopt this mode moulding pipe, although reduced the support force that core bears, because press tonnage is larger, power-equipment is proposed to high requirement, increased the requirement to bend pipe mould intensity; Huge top die and die cavity cause the huge waste of the means of production;
2. adopt more than 95% inside to fill core, make that pipe is approximate to be become solidly, further increase the required pressure of bend pipe; In addition, too much filling core makes cleaning and the dismounting of the inner core of curved rear tubular member become extremely difficult.
Another kind is, adopts traditional plug as core, and its shortcoming is: bulky, manufacture difficulty is large, install, dismounting is inconvenient, and curved rear tubular member quality can not get requirement, and it is curved or go for a stroll that this kind of core is mainly applicable to pushing away of pipe fitting, is rarely used in the press-bending of pipe fitting.
Therefore need a kind of core, cube little, manufacture simply, installation, convenient disassembly, the geometric parameter precise control to pipe fitting segmental arc in press-bending process, is the technical problem of needing solution badly.
Summary of the invention
Consider above-mentioned correlation technique, a technical problem to be solved by this invention is to provide a kind of core, simplify the accurate control of efficient realization to press-bending angle, and volume is little in the process of bend pipe, manufactures simply installation, convenient disassembly.
In view of this, the invention provides a kind of composite core formwork, bending for pipe fitting, and be positioned in the hole of described pipe fitting, at least comprise separately independently core mould, the first other core, the second other core, wherein, the described first other core and the second other core symmetry are placed on the both sides of described core mould, and the center line of described core mould overlaps with the elastic line of the bending section of described pipe fitting.
In this technical scheme, adopt separately independently composite core formwork, make mould install, dismantle simply, the placement location of core mould, the first other core and the second other core, has guaranteed that pipe fitting bending section arc length is effectively supported, thereby has guaranteed pipe fitting brake forming.
In technique scheme, preferably, also comprise that the first ozzle supports core and the second ozzle and supports described in core the first ozzle and support core and described the second ozzle and support core and be placed on respectively in the centre bore at described pipe fitting bending section two side neck places.
In this technical scheme, the first ozzle supports core and local ellipseization phenomenon can be avoided or reduce to the second ozzle support core, has guaranteed the forming accuracy at pipe fitting ozzle place.
In technique scheme, preferably, the described first other core is identical with the second other core mold structure, and it is identical with described the second ozzle supporting-core mode structure that described the first ozzle supports core.
In this technical scheme, use the identical core of structure, simplified design, lowered production cost, make fitting operation simpler, be convenient to change.
In technique scheme, preferably, described core mould, the first other core, the second other core, the first ozzle supports core and the second ozzle supports core, the column that includes top board, base plate and connect described top board and base plate, described top board Height Adjustable.
In this technical scheme, top board, base plate and the column that connects described top board and base plate can provide large support force, the effect that composite core formwork is played and support described pipe fitting, suppresses pipe fitting distortion.Top board height is adjustable, facilitates the installation and removal of each core.
In technique scheme, preferably, the two ends of the described top board of described core mould can coordinate by tongue-and-groove with one end of the described first other core top board and one end of the described second other core top board, and the two ends of the described base plate of described core mould can coordinate by tongue-and-groove with one end of the described first other core base plate and one end of the described second other core base plate.
In this technical scheme, it is simple and convenient that tongue-and-groove cooperation combines each core; And composite core formwork can be adapted fitting part automatic according to the variation of pipe fitting bending and pipe fitting, and both played a supporting role, guaranteed again the moulding of pipe fitting.
In technique scheme, preferably, the two ends of the described top board of described core mould are X-shaped, and one end of one end of the described first other core top board and the described second other core top board is the arrow-shaped coordinating with described X-shaped; The two ends of the described base plate of described core mould are provided with groove, and one end of one end of the described first other core base plate and the described second other core base plate is provided with the projection matching with described groove.
This technical scheme is a kind of embodiment of above-mentioned tenon groove structure, can make between top board, between base plate not only to coordinate firmly but also not affect mutual rotation; Make core mould, the first other core, the second other core combine conveniently easily simultaneously, complete after pipe fitting bending, make composite core formwork easy removal.
In technique scheme, preferably, the upper surface of described top board is the part on the face of cylinder of matching with the described hole of described pipe fitting, and the radius on the described face of cylinder is less than the radius of described pipe fitting centre bore; The lower surface of the described base plate of described core mould, the first other core, the second other core is for take the part of the sphere that described pipe fitting bending radius is radius; The first ozzle supports the part that lower surface that core and the second ozzle support the described base plate of core is the face of cylinder of matching with the described hole of described pipe fitting.
In this technical scheme, the top board of each core and the shape of base plate, can match with the bending section of pipe fitting, thereby guarantee the shape of crooked rear tubular member flexure plane; The radius of curvature of top board is slightly less than the radius of curvature of pipe fitting, can make bending tube forming latter stage, and the tube wall place that the two ends of each core contact with pipe fitting can not produce impression.
In technique scheme, preferably, the length of adjacent described core mould one side of described top board of the described first other core and the second other core is greater than the length of its column opposite side, and the length of adjacent described core mould one side of described base plate of the described first other core and the second other core is less than the length of its column opposite side.
In this technical scheme, adopt said structure scheme, in bend pipe process, top board and base plate are guaranteeing the hands-off while of space, bring into play fully the moulding effect to the crooked segmental arc of pipe fitting.Be core mould, the first other core, the second other core in holding voluble state, be convenient in bend pipe process, for above-mentioned core provides normal turning moment, to have guaranteed pipe fitting bending section precise forming.
In technique scheme, preferably, on the column of described core mould, the first other core, the second other core, have backing plate, the backstay by both sides between described backing plate and top board is separately connected, and between the described backstay of described top board, column upper surface and both sides, is provided with wedge; The described column that the first ozzle supports core and the second ozzle support core is hydraulic jack.
In this technical scheme, wedge can be adjusted the height of the top board of core mould, the first other core, the second other core in the scope that can reach.Backstay is connected backing plate, top board as a whole with column, connect like this and make wedge when adjusting the height of core mould, the first other core, the second other core, not affect overall structure.The first ozzle supports core and described the second ozzle supports core by hydraulic jack adjustment height.
In technique scheme, preferably, location-plate by both sides between the described column of described core mould, the first other core, the second other core and described top board is separately connected, on described location-plate, be provided with mounting hole, on described top board and described column, be provided with described mounting hole and match and merge the guide finger that can move in described mounting hole, described in described top board, column upper surface and both sides, between location-plate, be provided with wedge; The described column that described the first ozzle supports core and described the second ozzle support core is hydraulic jack.
In this technical scheme, wedge can be adjusted the height of described core mould, the first other core, the second other core in the scope that can reach.Location-plate is connected top board as a whole with column by guide finger, do not affect overall structure while connecting like this height that makes wedge adjust core mould, the first other core, the second other core.Described the first ozzle supports core and described the second ozzle supports core by hydraulic jack adjustment height.
In technique scheme, preferably, between the described column and described base plate separately of described core mould, the first other core, the second other core, be also provided with connecting rod.
In this technical scheme, connecting rod makes to be connected more firmly between column and base plate, support force is larger.
In technique scheme; preferably; composite core formwork also comprises the 3rd other core and the 4th other core; the described the 3rd other core and the 4th other core are about symmetrical placement of center line of described core mould, and the described the 3rd other core is placed on the outside of the described first other core, the outside that the described the 4th other core is placed on the described second other core.
In this technical scheme, the described the 3rd other core and the 4th other core can guarantee the precision of pipe fitting bending more accurately.
In technique scheme, preferably, the structure of described the 3rd other core and the 4th other core is identical, includes the column of the described top board of top board, base plate and connection and described base plate, described top board Height Adjustable.
In this technical scheme, the 3rd other core and the 4th other core are selected identical structure, have simplified design, have lowered production cost, make fitting operation simple, and are convenient to change.
In sum, composite core formwork provided by the invention, in the process of bending at pipe fitting, not only can realize the support of bending section but also can, automatically with BENDING PROCESS automatic rotating, guarantee well the forming accuracy of pipe bending section; The core that ozzle place arranges can local ellipseization of Avoids or reduces, improves the quality of pipe fitting; And volume is little, manufacture simply installation, convenient disassembly.
Accompanying drawing explanation
Fig. 1 is composite core formwork structural representation according to an embodiment of the invention;
Fig. 2 is a kind of structural representation of the core mould in Fig. 1;
Fig. 3 is a kind of structural representation of the other core in Fig. 1;
Fig. 4 is a kind of structural representation that the ozzle in Fig. 1 supports core;
Fig. 5 is a kind of structural representation of the 3rd or the 4th other core;
Fig. 6 is the second structural representation of the core mould in Fig. 1;
Fig. 7 is the second structural representation of the other core in Fig. 1;
Fig. 8 is the installation site schematic diagram of composite core formwork shown in Fig. 1 in pipe fitting.
Wherein, in Fig. 1 to Fig. 8, the corresponding relation between Reference numeral and component names is:
1 first ozzle supports core, 2 first other cores, and 3 core moulds, 4 second other cores,
5 second ozzles support core, 6 backstays, and 7 top boards, 8 wedges, 9 backing plates, 10 columns,
11 base plates, 12 hydraulic jacks, 13 guide fingers, 14 location-plates, 15 connecting rods, 16 pipe fittings,
111 grooves, 112 projections, 141 mounting holes.
The specific embodiment
In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.
A lot of details have been set forth in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from mode described here and implement, and therefore, protection scope of the present invention is not subject to the restriction of following public specific embodiment.
Fig. 1 to Fig. 5 is the schematic diagram of composite core formwork according to an embodiment of the invention.
A kind of composite core formwork that one embodiment of the invention provides, bending for pipe fitting 16(as shown in phantom in Figure 8), and be positioned in the hole of pipe fitting 16, at least comprise separately independently other core the 2, the second other core 4 of core mould 3, first, wherein, the first other core 2 and the second other core 4 symmetries are placed on the both sides of core mould 3, and the center line of core mould 3 overlaps with the elastic line of the bending section of pipe fitting 16.
In this technical scheme, independently core makes mould install, dismantle simply separately, and the placement location of core mould the 3, first other core 2 and the second other core 4, has guaranteed that pipe fitting 16 bending section arc length are effectively supported, thereby guaranteed pipe fitting 16 brake formings.
In the above-described embodiments, composite core formwork also comprises that the first ozzle supports core 1 and the second ozzle supports core 5, the first ozzles support cores 1 and the second ozzle support core 5 is placed on respectively in the hole at pipe fitting 16 bending section two side neck places.
In this technical scheme, the first ozzle supports core 1 and local ellipseization phenomenon can be avoided or reduce to the second ozzle support core 5, has guaranteed the forming accuracy at pipe fitting 16 ozzle places.
In the above-described embodiments, the first other core 2 is identical with the second other core 4 structures, and it is identical with the second ozzle support core 5 structures that the first ozzle supports core 1.
In this technical scheme, use the identical core of structure, simplified design, lowered production cost, make fitting operation simpler, be convenient to change.
In the above-described embodiments, core mould 3, the other core 4 of the first other core 2, second, the first ozzle supports core 1 and the second ozzle supports core 5, the column 10 that includes top board 7, base plate 11 and connect top board 7 and base plate 11, top board 7 Height Adjustable.
In this technical scheme, the column 10 of top board 7, base plate 11 and connection top board 7 and base plate 11 can provide large support force, makes composite core formwork play support tubes 16 and suppresses the effect that pipe fitting 16 is out of shape.The height of top board 7 is adjustable, can facilitate the installation and removal of each core.
In the above-described embodiments, the two ends of the top board 7 of core mould 3 can coordinate by tongue-and-groove with one end of the first other core top board 7 and one end of the second other core top board 7, and the two ends of the base plate 11 of core mould 3 can coordinate by tongue-and-groove with one end of the first other core base plate 11 and one end of the second other core base plate 11.
In this technical scheme, it is simple and convenient that tongue-and-groove cooperation combines each core; And can make composite core formwork adapt fitting part automatic according to the variation of pipe fitting 16 bendings and pipe fitting 16, the moulding of the pipe fitting 16 of not only having played a supporting role but also guaranteed.
Further, the two ends of the top board 7 of core mould 3 are X-shaped, and one end of the top board 7 of one end of the top board 7 of the first other core 2 and the second other core 4 is the arrow-shaped coordinating with X-shaped; The two ends of the base plate 11 of core mould 3 are provided with one end of groove 111, the first other core base plates 11 and one end of the second other core base plate 11 is provided with the projection 112 matching with groove 111.
In this technical scheme, tenon groove structure can be so that 11,7, top board, base plate have not only coordinated firmly but also had not affected mutual rotation; In pipe fitting 16 BENDING PROCESS, other core the 2, the second other core 4 of core mould 3, first is combined easily convenient simultaneously, complete after pipe fitting 16 bendings, make composite core formwork easy removal.
In the above-described embodiments, the upper surface of top board 7 is the part on the face of cylinder of matching with the hole of pipe fitting 16, and the radius on the face of cylinder is less than the radius in the hole of pipe fitting 16; The lower surface of the base plate 11 of core mould 3, the first other core 2, the second other core 4 is for take the part of the sphere that pipe fitting 16 bending radius are radius; The first ozzle supports the part that lower surface that core 1 and the second ozzle support the base plate 11 of core 5 is the face of cylinder of matching with the hole of pipe fitting 16.
In this technical scheme, the top board 7 of each core and the shape of base plate 11, can match with the bending section of pipe fitting 16, thereby guarantee the shape of crooked rear tubular member 16 flexure planes; The radius of curvature of top board 7 is slightly less than the radius of curvature of pipe fitting 16, makes bending tube forming latter stage, and the tube wall place that the two ends of each core contact with pipe fitting 16 can not produce impression.
In the above-described embodiments, the length of adjacent core mould 3 one sides of top board 7 of the first other core 2 and the second other core 4 is greater than the length of its column 10 opposite sides, and the length of adjacent core mould 3 one sides of base plate 11 of the first other core 2 and the second other core 4 is less than the length of its column 10 opposite sides.
In this technical scheme, in bend pipe process, top board 7 guaranteeing the hands-off while of space, is brought into play the moulding effect to pipe fitting 16 crooked segmental arcs with base plate 11 fully.Adopt this organization plan to make core mould 3, first other core the 2, second other core 4 in holding voluble state, be convenient in bend pipe process, for above-mentioned core provides normal turning moment, to have guaranteed the precise forming of pipe fitting 16 bending sections.
In the above-described embodiments, on the column 10 of the other core 2 of core mould 3, first, the second other core 4, there is backing plate 9, backstay 6 by both sides between backing plate 9 and top board separately 7 is connected, and between top board 7, column 10 upper surfaces and the backstay 6 of both sides, is provided with wedge 8; The column that the first ozzle supports core 1 and the second ozzle support core 5 is hydraulic jack 12.
In this technical scheme, wedge 8 can be adjusted the height of the top board 7 of the other core 2 of core mould 3, first, the second other core 4 in the scope that can reach.Backstay 6 is connected backing plate 9, top board 7 as a whole with column 10, do not affect whole structure while connecting like this height that makes wedge 8 adjust the other core 2 of core mould 3, first, the second other core 4.The first ozzle supports core 1 and the second ozzle supports core 5 by hydraulic jack 12 adjustment height.
Fig. 6, Fig. 7 are the second structures of embodiment of the present invention core mould and other core.
Preferably, as shown in Figure 6 and Figure 7, location-plate 14 by both sides between the column 10 of the other core 2 of core mould 3, first, the second other core 4 and top board separately 7 is connected, on location-plate 14, be provided with mounting hole 141, on top board 7 and column 10, be provided with mounting hole 141 and match and merge the guide finger 13 that can move in mounting hole 141, on top board 7, column, between 10 end faces and both sides location-plate 14, be provided with wedge 8; The column that the first ozzle supports core 1 and the second ozzle support core 5 is hydraulic jack 12.
In this technical scheme, wedge 8 can be adjusted the height of the other core 2 of core mould 3, first, the second other core 4 in the scope that can reach.Location-plate 14 is connected top board 7 as a whole with column 10 by guide finger 13, connect like this and make wedge 8 when adjusting the height of the other core 2 of core mould 3, first, the second other core 4, not affect overall structure.The first ozzle supports core 1 and the second ozzle supports core 5 by hydraulic jack 12 adjustment height.
In the above-described embodiments, between the column 10 and base plate separately 11 of the other core 2 of core mould 3, first, the second other core 4, be also provided with connecting rod 15.
In this technical scheme, connecting rod 15 makes to be connected more firmly between column 10 and base plate 11, support force is larger.
In above-mentioned any one embodiment; composite core formwork also comprises the 3rd other core and the 4th other core (not shown); the 3rd other core and the 4th other core are about symmetrical placement of center line of core mould 3, and the 3rd other core is placed on the outside of the first other core 2, the outside that the 4th other core is placed on the second other core 4.
In this technical scheme, the 3rd other core and the 4th other core can guarantee the precision of pipe fitting 16 bendings more accurately.
Further, the structure of the 3rd other core and the 4th other core is identical, includes top board 7, base plate 11 and is connected top board 7 and the column 10 of base plate 11, top board 7 Height Adjustable.
In this technical scheme, the 3rd other core and the 4th other core are selected identical structure, have simplified design, have lowered production cost, make fitting operation simple, and are convenient to change.Top board 7 highly also can regulate by above-mentioned wedge 8.
Fig. 8 is the installation site schematic diagram of composite core formwork shown in Fig. 1 in pipe fitting.
As shown in Figure 8, the first other core 2, core mould 3,4 three cores of the second other core are axially in one line along pipe fitting 16.During work, between the center line of core mould 3 and pipe, the elastic line of bending section overlaps, the first other core 2 and the symmetrical placement of the second other core 4, and the first ozzle supports core 1 and the second ozzle supports the ozzle that core 5 supports both sides.When upper trimming die is depressed, the upper surface of composite core formwork contacts completely with pipe fitting 16 inwalls, and lower surface divides contact with pipe fitting 16 inwalls at 3, thereby has well disperseed the contact stress between core and tube wall; Owing to being approximated to the relation of simply supported beam between pipe fitting 16 and habitual abortion, base, with upper trimming die, to depress and carry out, pipe fitting 16 interludes start bending, and the basic held stationary of intermediate core mole 3 moves down, and the contact area of the outer surface of its base plate 11 and pipe fitting 16 outer arcs increases gradually; The outer short structure of interior length of the first other core 2 and the second other core 4 top boards 7 and interior short foreign minister's structure of base plate 11 (side of contiguous core mould 3 be interior, away from a side of core mould 3 for outer), make its automatic rotation under the drive of pipe fitting 16 segmental arc inner arcs, outer arc bending respectively, top board 7 surfaces are contacted and are become tangent contact from total length gradually with the contact condition of pipe fitting 16 inwalls, both do " rolling ", " cunning " motion relatively, base plate 11 surfaces gradually become curved surface by tangent contact and contact, and both do " rolling ", " cunning " motion.Inside top board 7 surface and pipe fitting 16 segmental arcs, outside tangent and base plate 11 surfaces of camber line and pipe fitting 16 segmental arcs, coincideing of cambered surface determined the position of the first other core 2 and the second other core 4 jointly, the function that makes the capturing position that it separately can be automatic, intelligent and keep segmental arc to be shaped.Along with the end of bending, the upper panel surface of composite core formwork and the intrados of upper trimming die surround pipe fitting 16 segmental arc inner arc sides jointly, elongation due to pipe fitting 16 segmental arc outer arcs, the first other core 2, core mould 3 and the base plate 11 of the second side core 4 are relative to separating, rotating, finally by 3 original arranged crosswise, form the last concyclic heart dispersed placement of three curved surfaces, guaranteed well the shaping of pipe fitting 16 segmental arc outer arcs.
In sum, composite core formwork provided by the invention, in the process of bending at pipe fitting, not only can realize the support of bending section but also can, automatically with BENDING PROCESS automatic rotating, guarantee well the forming accuracy of pipe bending section; The core that ozzle place arranges can local ellipseization of Avoids or reduces, improves the quality of pipe fitting; And volume is little, manufacture simply installation, convenient disassembly.
In the present invention, term " first ", " second ", " the 3rd ", " the 4th " be the object for describing only, and can not be interpreted as indication or hint relative importance, and term " a plurality of " refers to two or more, unless separately there is clear and definite restriction.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (14)
1. a composite core formwork, bending for pipe fitting (16), and be positioned in the hole of described pipe fitting (16), it is characterized in that, at least comprise separately independently core mould (3), the first other core (2), the second other core (4), wherein, the described first other core (2) and the second other core (4) symmetry are placed on the both sides of described core mould (3), and the center line of described core mould (3) overlaps with the elastic line of the bending section of described pipe fitting (16).
2. composite core formwork according to claim 1, it is characterized in that, also comprise that the first ozzle supports core (1) and the second ozzle supports core (5), described the first ozzle supports core (1) and described the second ozzle support core (5) is placed on respectively in the hole at described pipe fitting (16) bending section two side neck places.
3. composite core formwork according to claim 2, is characterized in that, the described first other core (2) is identical with the second other core (4) structure, and it is identical with described the second ozzle support core (5) structure that described the first ozzle supports core (1).
4. composite core formwork according to claim 3, it is characterized in that, described core mould (3), the first other core (2), the second other core (4), the first ozzle support core (1) and the second ozzle support core (5), include top board (7), base plate (11) and connect described top board (7) and the column (10) of base plate (11), described top board (7) Height Adjustable.
5. composite core formwork according to claim 4, it is characterized in that, the two ends of the described top board (7) of described core mould (3) can coordinate by tongue-and-groove with one end of the described first other core (2) top board (7) and one end of the described second other core (4) top board (7), and the two ends of the described base plate (11) of described core mould (3) can coordinate by tongue-and-groove with one end of the base plate (11) of the described first other core (2) and one end of the described second other core (4) base plate (11).
6. composite core formwork according to claim 5, it is characterized in that, the two ends of the described top board (7) of described core mould (3) are X-shaped, and one end of one end of the described first other core (2) top board (7) and the described second other core (4) top board (7) is the arrow-shaped coordinating with described X-shaped; The two ends of the described base plate (11) of described core mould (3) are provided with groove (111), and one end of the base plate (11) of one end of the base plate (11) of the described first other core (2) and the described second other core (4) is provided with the projection (112) matching with described groove (111).
7. composite core formwork according to claim 4, it is characterized in that, the upper surface of described top board (7) is the part on the face of cylinder of matching with the described hole of described pipe fitting (16), and the radius on the described face of cylinder is less than the radius in the described hole of described pipe fitting (16); The lower surface of the described base plate (11) of described core mould (3), the first other core (2), the second other core (4) is for take the part of the sphere that described pipe fitting (16) bending radius is radius; Described the first ozzle supports the part that lower surface that core (1) and described the second ozzle support the described base plate (11) of core (5) is the face of cylinder of matching with the described hole of described pipe fitting (16).
8. composite core formwork according to claim 4, it is characterized in that, the length of adjacent described core mould (3) one sides of described top board (7) of the described first other core (2) and the second other core (4) is greater than the length of its column (10) opposite side, and the length of adjacent described core mould (3) one sides of described base plate (11) of the described first other core (2) and the second other core (4) is less than the length of its column (10) opposite side.
9. composite core formwork according to claim 4, it is characterized in that, the column (10) of described core mould (3), the first other core (2), the second other core (4) is provided with backing plate (9), backstay (6) by both sides between described backing plate (9) and top board separately (7) is connected, and between the described backstay (6) of described top board (7), column (10) upper surface and both sides, is provided with wedge (8); The described column (10) that the first ozzle supports core (1) and the second ozzle support core (5) is hydraulic jack (12).
10. composite core formwork according to claim 4, it is characterized in that, described core mould (3), the first other core (2), location-plate (14) by both sides between the described column (10) of the second other core (4) and described top board (7) is separately connected, on described location-plate (14), be provided with mounting hole (141), on described top board (7) and described column (10), be provided with described mounting hole (141) and match and merge the guide finger (13) that can move in described mounting hole (141), in described top board (7), described in column (10) upper surface and both sides, between location-plate (14), be provided with wedge (8), the described column (10) that the first ozzle supports core (1) and the second ozzle support core (5) is hydraulic jack (12).
11. composite core formwork according to claim 9, is characterized in that, between the described column and described base plate (11) separately of described core mould (3), the first other core (2), the second other core (4), are also provided with connecting rod (15).
12. according to the composite core formwork described in any one in claim 1 to 11, it is characterized in that, also comprise the 3rd other core and the 4th other core, the described the 3rd other core and the 4th other core are about symmetrical placement of center line of described core mould (3), and the described the 3rd other core is placed on the outside of the described first other core (2), the outside that the described the 4th other core is placed on the described second other core (4).
13. composite core formwork according to claim 12, it is characterized in that, the described the 3rd other core is identical with the structure of the 4th other core, include top board (7), base plate (11) and be connected described top board (7) and the column (10) of described base plate (11), described top board (7) Height Adjustable.
14. 1 kinds of crooked mould of pipe fittings, is characterized in that, comprise the composite core formwork as described in any one in claim 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210335876.2A CN103658273A (en) | 2012-09-11 | 2012-09-11 | Combined core mould and pipe fitting bending mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210335876.2A CN103658273A (en) | 2012-09-11 | 2012-09-11 | Combined core mould and pipe fitting bending mould |
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| Publication Number | Publication Date |
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| CN103658273A true CN103658273A (en) | 2014-03-26 |
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| CN201210335876.2A Pending CN103658273A (en) | 2012-09-11 | 2012-09-11 | Combined core mould and pipe fitting bending mould |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114453469A (en) * | 2022-02-14 | 2022-05-10 | 湖南金天钛业科技有限公司 | Titanium alloy pipe, hot bending forming method thereof and hot bending forming tool |
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| JPS57115919A (en) * | 1981-01-10 | 1982-07-19 | Japan Steel Works Ltd:The | Method and equipment for forming bent pipe |
| SU1382537A1 (en) * | 1985-12-12 | 1988-03-23 | Предприятие П/Я А-1872 | Built-up mandrel for bending laterals in the die |
| CN1072627A (en) * | 1991-11-28 | 1993-06-02 | 陈振业 | The manufacture method of the steel elbow of band straight length and mould and products thereof |
| CN101244443A (en) * | 2008-03-27 | 2008-08-20 | 二重集团（德阳）重型装备股份有限公司 | Combined shaping mold |
| CN201625700U (en) * | 2010-02-03 | 2010-11-10 | 江阴市南方管件制造有限公司 | Hot-press forming device for thick-walled elbows without inner cores |
| CN102527791A (en) * | 2012-01-18 | 2012-07-04 | 燕山大学 | Main pipeline brake forming process and device of equipment in nuclear power station |
| DE102011000845A1 (en) * | 2011-02-21 | 2012-08-23 | Mag Ias Gmbh | Method for bending pipe, involves applying axial force only in peripheral portion of pipe ends at outer side of pipe, such that material is flowed into bending portion |
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|---|---|---|---|---|
| JPS57115919A (en) * | 1981-01-10 | 1982-07-19 | Japan Steel Works Ltd:The | Method and equipment for forming bent pipe |
| SU1382537A1 (en) * | 1985-12-12 | 1988-03-23 | Предприятие П/Я А-1872 | Built-up mandrel for bending laterals in the die |
| CN1072627A (en) * | 1991-11-28 | 1993-06-02 | 陈振业 | The manufacture method of the steel elbow of band straight length and mould and products thereof |
| CN101244443A (en) * | 2008-03-27 | 2008-08-20 | 二重集团（德阳）重型装备股份有限公司 | Combined shaping mold |
| CN201625700U (en) * | 2010-02-03 | 2010-11-10 | 江阴市南方管件制造有限公司 | Hot-press forming device for thick-walled elbows without inner cores |
| DE102011000845A1 (en) * | 2011-02-21 | 2012-08-23 | Mag Ias Gmbh | Method for bending pipe, involves applying axial force only in peripheral portion of pipe ends at outer side of pipe, such that material is flowed into bending portion |
| CN102527791A (en) * | 2012-01-18 | 2012-07-04 | 燕山大学 | Main pipeline brake forming process and device of equipment in nuclear power station |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114453469A (en) * | 2022-02-14 | 2022-05-10 | 湖南金天钛业科技有限公司 | Titanium alloy pipe, hot bending forming method thereof and hot bending forming tool |
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Application publication date: 20140326 |