CN115475850A - Forming process and equipment of three-way pipe for pipeline engineering - Google Patents
Forming process and equipment of three-way pipe for pipeline engineering Download PDFInfo
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- CN115475850A CN115475850A CN202211060289.7A CN202211060289A CN115475850A CN 115475850 A CN115475850 A CN 115475850A CN 202211060289 A CN202211060289 A CN 202211060289A CN 115475850 A CN115475850 A CN 115475850A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
- B21C37/29—Making branched pieces, e.g. T-pieces
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Abstract
The invention relates to the technical field of material processing, in particular to a forming process of a three-way pipe for pipeline engineering. The molding process comprises the following steps: horizontally placing a heated blank pipe on a lower die; step two, starting the driving assembly, and enabling the upper die to descend to an execution height from the initial height relative to the lower die, wherein the flat blank pipe is clamped by the flat clamping mechanism in the process; step three, continuously starting the driving assembly, enabling the upper die to move from the execution height to the die closing height, enabling the flat clamping mechanism to loosen the blank material pipe, enabling the upper die to be pressed downwards continuously after abutting against the top end of the blank material pipe, and enabling the bottom of the blank material pipe to protrude downwards to form a bulge; starting a cooling mechanism before die assembly, and cooling the upper cambered surfaces of the upper die and the blank pipe until die assembly is carried out to form a complete bulge; and step five, the bulge is punched and drawn, so that the forming process has low heat loss and saves energy. The invention also relates to a forming device of the three-way pipe for pipeline engineering.
Description
Technical Field
The invention relates to the technical field of material processing, in particular to a forming process of a three-way pipe for pipeline engineering. The invention also relates to a forming device of the three-way pipe for pipeline engineering.
Background
The traditional tee joint forming method comprises the following steps: and heating and flattening the tee pipe blank, then heating and bulging, and finally opening and drawing. The hot pressing tee joint needs to be heated and insulated in the drawing process, the pressing and drawing can be carried out at a certain temperature, and when the temperature is reduced to the specified temperature, the drawing is suspended, and the heating and insulation are needed again. Traditional drawing process adopts the cold drawing die, puts to the blank when the drawing die, can absorb the temperature of blank fast, makes the cooling degree speed of blank increase to lead to drawing the energy to increase, in process of production, the stock pipe needs frequent change station, and traditional bulging mode and the technological heat utilization ratio of cold drawing die drawing are lower, and heat utilization ratio only 20%, most heat all consume extravagantly.
Chinese patent CN110153228A discloses a forming process of a high-end tee joint, and particularly relates to the field of material processing, and the forming process comprises the following steps: step one, processing a blank pipe, namely heating and insulating the three-way blank pipe, and then flattening the three-way blank pipe by using a flattening machine; and step two, opening a hole at the position of the pre-bulging, selecting a bulging center of the three-way parison tube, and opening the hole at the bulging center according to calculation.
The forming process still needs to frequently transfer the blank, and the blank cannot be pressed and formed at one time.
Disclosure of Invention
Aiming at the problems, the forming process of the three-way pipe for the pipeline engineering is provided, and the problem that the blank cannot be formed in one-step pressing mode in the prior art is solved through the flat clamping mechanism and the cooling mechanism.
In order to solve the problems of the prior art, the invention adopts the technical scheme that:
a forming process of a three-way pipe for pipeline engineering is characterized in that the three-way pipe is processed through forming equipment, the forming equipment comprises a lower die, an upper die and a driving assembly, the upper die is arranged at the top of the lower die, the driving assembly is used for driving the upper die to move towards the lower die, the upper die is sequentially provided with an initial height, an execution height and a die assembly height from top to bottom relative to the lower die, the forming equipment further comprises a flattening mechanism and a cooling mechanism, the flattening mechanism is arranged on the lower die and is in transmission connection with the upper die, when the upper die moves from the initial height to the execution height, the flattening mechanism flattens a blank pipe placed on the lower die along the radial direction, and when the upper die moves from the execution height to the die assembly height, the flattening mechanism loosens the blank pipe to avoid the upper die; the cooling mechanism is arranged on the upper die; the molding process comprises the following steps: horizontally placing a heated blank pipe on a lower die; step two, starting the driving assembly, and enabling the upper die to descend to an execution height from the initial height relative to the lower die, wherein the flat blank pipe is clamped by the flat clamping mechanism in the process, the overall radial section of the blank pipe is oval, and the bottom of the blank pipe falls into the lower die; step three, continuously starting the driving assembly, enabling the upper die to move from the execution height to the die closing height, enabling the flat clamping mechanism to loosen the blank material pipe, enabling the upper die to be pressed downwards continuously after abutting against the top end of the blank material pipe, and enabling the bottom of the blank material pipe to protrude downwards to form a bulge; starting a cooling mechanism before die assembly, and cooling the upper cambered surfaces of the upper die and the blank pipe until die assembly is carried out to form a complete bulge; and step five, punching and drawing the bulge.
Preferably, the flat clamping mechanism comprises a positioning part, a clamping part and a linkage part; the positioning parts are arranged on two sides of the upper blank pipe of the lower die in the axial direction along the horizontal direction; the two clamping parts are arranged on the positioning part in a sliding manner in opposite directions or in a back-to-back manner, and are positioned on two sides of the blank feeding pipe on the lower die in the horizontal radial direction; the two linkage parts are arranged in the lower die and are in transmission connection with the upper die, the two linkage parts are positioned on the outer sides of the two clamping parts and are in guide connection with the clamping parts, and when the upper die moves from an initial height to an execution height, the two linkage parts descend to drive the two clamping parts to move relatively so as to clamp a blank pipe placed on the lower die; when the upper die moves from the execution height to the die assembly height, the two linkage parts continue to descend to drive the two clamping parts to loosen the blank pipe placed on the lower die.
Preferably, the positioning part comprises a first fixed seat and a fixed rod, the first fixed seat is fixedly arranged on the lower die along two sides of the blank pipe in the axial direction, the fixed rod is horizontally arranged on the first fixed seat, and the fixed rod extends along the blank pipe in the radial direction; the clamping part comprises mounting frames, second fixing seats, a roll shaft, a first side plate and a spring, the second fixing seats are fixedly arranged on two sides of the mounting frames, and the two mounting frames are arranged on the fixing rod in a sliding mode in opposite directions or in a back-to-back mode through the second fixing seats; the roll shaft is rotatably arranged on the outer side of the mounting frame and extends along the axial direction of the blank pipe; the first side plate is fixedly arranged at the top end of the mounting frame and extends along the axial direction of the blank pipe; the spring is sleeved on the fixed rod, and two ends of the spring are respectively abutted against the opposite sides of the first fixed seat and the second fixed seat; the linkage part comprises a second side plate, a connecting column and a positioning plate, and the second side plate is arranged on the outer side of the mounting frame along the vertical direction; the connecting column is fixedly connected with the upper die and the second side plate along the vertical direction; the locating plate sets up in one side of second curb plate orientation mounting bracket equidistantly, the outside of locating plate is provided with the side top, and be located side top end and rather than the first oblique side of being connected, and be located the bottom on side top and rather than the second oblique curb plate of being connected, roller elasticity butt is on the locating plate, the side top, first oblique side and second oblique side and roller sliding fit, go up the mould from initial altitude migration to when executing the height, the roller removes to the side top from the bottom of second oblique side, go up the mould from when executing the high migration to compound die height, the roller removes to the top of first oblique side from the side top.
Preferably, the positioning part comprises a first fixed seat and a fixed rod, the first fixed seat is fixedly arranged on the lower die along two axial sides of the blank pipe, the fixed rod is horizontally arranged on the first fixed seat, and the fixed rod extends along the radial direction of the blank pipe; the clamping part comprises mounting frames, a roll shaft, a first side plate and a magnetic rod, second fixing seats are arranged on two sides of the two mounting frames, and the two mounting frames are arranged on the fixing rod in a sliding mode in opposite directions or in a back-to-back mode through the second fixing seats; the roll shaft is rotatably arranged on the outer side of the mounting frame, extends along the axial direction of the blank pipe and is hollow; the first side plate is fixedly arranged at the top end of the mounting frame and extends along the axial direction of the blank pipe; the magnetic rod is arranged in the hollow roll shaft; the linkage part comprises a second side plate, a connecting column and a positioning plate, and the second side plate is arranged on the outer side of the mounting frame along the vertical direction; the connecting column is fixedly connected with the upper die and the second side plate along the vertical direction; the locating plate sets up in one side of second curb plate orientation mounting bracket equidistantly, the outside of locating plate is provided with the side top, and be located side top end and rather than the first oblique side of being connected, and be located the bottom on side top and rather than the second oblique curb plate of being connected, the roller passes through magnetic force pole magnetism and adsorbs on the locating plate, the side top, first oblique side and second oblique side and roller sliding fit, go up the mould when initial altitude migration to execution height, the roller removes to the side top from the bottom of second oblique side, go up the mould when executing high migration to the compound die height, the roller removes the top to first oblique side from the side top.
Preferably, the upper die is a split part, and the cooling mechanism comprises a heat exchange tube, a first main flow tube and a second main flow tube; the heat exchange tubes are uniformly distributed in the dividing surface of the upper die; the first main flow pipe is connected with one end of each heat exchange pipe; the second total flow pipe is connected with the other ends of all the heat exchange pipes, and the heat exchange liquid sequentially flows through the first total flow pipe, the heat exchange pipes and the second total flow pipe.
The invention also relates to a forming device of the three-way pipe for the pipeline engineering, which comprises a lower die, an upper die arranged at the top of the lower die and a driving assembly for driving the upper die to move towards the lower die, wherein the upper die sequentially has an initial height, an execution height and a die assembly height from top to bottom relative to the lower die; the cooling mechanism is arranged on the upper die.
Preferably, the flat clamping mechanism comprises a positioning part, a clamping part and a linkage part; the positioning parts are arranged on two sides of the upper blank pipe of the lower die in the axial direction along the horizontal direction; the two clamping parts are arranged on the positioning part in a sliding manner in opposite directions or in a back-to-back manner, and are positioned on two sides of the blank feeding pipe on the lower die in the horizontal radial direction; the two linkage parts are arranged in the lower die and are in transmission connection with the upper die, the two linkage parts are positioned on the outer sides of the two clamping parts and are in guide connection with the clamping parts, and when the upper die moves from an initial height to an execution height, the two linkage parts descend to drive the two clamping parts to move relatively so as to clamp a blank pipe placed on the lower die; when the upper die moves from the execution height to the die closing height, the two linkage parts continuously descend to drive the two clamping parts to loosen the blank pipe placed on the lower die.
Preferably, the positioning part comprises a first fixed seat and a fixed rod, the first fixed seat is fixedly arranged on the lower die along two sides of the blank pipe in the axial direction, the fixed rod is horizontally arranged on the first fixed seat, and the fixed rod extends along the blank pipe in the radial direction; the clamping part comprises mounting frames, second fixing seats, a roll shaft, a first side plate and a spring, the second fixing seats are fixedly arranged on two sides of the mounting frames, and the two mounting frames are arranged on the fixing rod in a sliding mode in opposite directions or in a back-to-back mode through the second fixing seats; the roll shaft is rotatably arranged on the outer side of the mounting frame and extends along the axial direction of the blank pipe; the first side plate is fixedly arranged at the top end of the mounting frame and extends along the axial direction of the blank pipe; the spring is sleeved on the fixed rod, and two ends of the spring are respectively abutted against the opposite sides of the first fixed seat and the second fixed seat; the linkage part comprises a second side plate, a connecting column and a positioning plate, and the second side plate is arranged on the outer side of the mounting frame along the vertical direction; the connecting column is fixedly connected with the upper die and the second side plate along the vertical direction; the locating plate sets up in one side of second curb plate orientation mounting bracket equidistantly, the outside of locating plate is provided with the side top, and be located side top end and rather than the first oblique side of being connected, and be located the bottom on side top and rather than the second oblique curb plate of being connected, roller elasticity butt is on the locating plate, the side top, first oblique side and second oblique side and roller sliding fit, go up the mould from initial altitude migration to when executing the height, the roller removes to the side top from the bottom of second oblique side, go up the mould from when executing the high migration to compound die height, the roller removes to the top of first oblique side from the side top.
Preferably, the positioning part comprises a first fixed seat and a fixed rod, the first fixed seat is fixedly arranged on the lower die along two sides of the blank pipe in the axial direction, the fixed rod is horizontally arranged on the first fixed seat, and the fixed rod extends along the blank pipe in the radial direction; the clamping part comprises mounting frames, a roll shaft, a first side plate and a magnetic rod, second fixing seats are arranged on two sides of the two mounting frames, and the two mounting frames are arranged on the fixing rod in a sliding mode in opposite directions or in a back-to-back mode through the second fixing seats; the roll shaft is rotatably arranged on the outer side of the mounting frame, extends along the axial direction of the blank pipe and is hollow; the first side plate is fixedly arranged at the top end of the mounting frame and extends along the axial direction of the blank pipe; the magnetic rod is arranged in the hollow roll shaft; the linkage part comprises a second side plate, a connecting column and a positioning plate, and the second side plate is arranged on the outer side of the mounting frame along the vertical direction; the connecting column is fixedly connected with the upper die and the second side plate along the vertical direction; the locating plate sets up in one side of second curb plate orientation mounting bracket equidistantly, the outside of locating plate is provided with the side top, and be located side top end and rather than the first oblique side of being connected, and be located the bottom on side top and rather than the second oblique curb plate of being connected, the roller passes through magnetic pole magnetic adsorption on the locating plate, the side top, first oblique side and second oblique side and roller sliding fit, go up the mould when initial altitude mixture removal to execution height, the roller removes to the side top from the bottom of second oblique side, go up the mould when executing high migration to the compound die height, the roller removes to the top of first oblique side from the side top.
Preferably, the upper die is a split part, and the cooling mechanism comprises a heat exchange tube, a first main flow tube and a second main flow tube; the heat exchange tubes are uniformly distributed in the dividing surface of the upper die; the first main flow pipe is connected with one ends of all the heat exchange pipes; the second total flow pipe is connected with the other ends of all the heat exchange pipes, and the heat exchange liquid sequentially flows through the first total flow pipe, the heat exchange pipes and the second total flow pipe.
Compared with the prior art, the beneficial effect of this application is:
1. according to the forming device, the flattening, pressing and cooling of the blank pipe are realized on one set of equipment, so that the problem that a large amount of heat is lost due to the fact that the blank pipe needs to be frequently transported is solved, the forming device is stable in structure, the heated blank pipe can be pressed into the semi-finished blank pipe with the bulge at the bottom in one step, heat loss is small, and energy is saved;
2. this application can cool off the top of blank pipe through cooling body before being about to the compound die to prevent that the top of blank pipe from continuing to walk the material downwards and taking place to warp, avoid simultaneously needing to transport the blank pipe to the cold water pond and lose thermal problem.
Drawings
FIG. 1 is a schematic view of a tee forming process;
FIG. 2 is a perspective view of a forming apparatus of a tee for pipeline engineering;
FIG. 3 is a front view of an upper die at an initial height in a forming apparatus of a tee for piping works;
FIG. 4 is a perspective view of a clamping part and a linkage part in a forming apparatus of a tee pipe for piping works;
FIG. 5 is a perspective view of an upper die in a forming apparatus for a tee pipe for piping works;
FIG. 6 is an exploded perspective view of an upper die and a cooling mechanism in a tee pipe forming apparatus for piping works;
FIG. 7 is a perspective view of a lower die in a forming apparatus for a tee pipe for piping works;
FIG. 8 is a front view of an upper die at an execution height in a forming apparatus of a tee for piping works;
FIG. 9 is a front view of an upper die at a die closing height in a forming apparatus for a three-way pipe for piping works.
The reference numbers in the figures are:
101-upper mould; 102-a lower die; 103-a drive assembly;
2-a flattening mechanism; 201-a first fixed seat; 202-a fixing rod; 203-a mounting frame; 204-a second fixed seat; 205-roll axis; 206-a first side panel; 207-a spring; 208-magnetic pole; 209-a second side plate; 210-connecting column; 211-a positioning plate;
3-a cooling mechanism; 301-heat exchange tube; 302-a first bus pipe; 303-second main flow pipe.
Detailed Description
For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
As shown in fig. 1, the present application provides:
a forming process of a three-way pipe for pipeline engineering is realized through forming equipment, the forming equipment comprises a lower die 102, an upper die 101 arranged at the top of the lower die 102 and a driving assembly 103 used for driving the upper die 101 to move towards the lower die 102, the upper die 101 sequentially has an initial height, an execution height and a die assembly height from top to bottom relative to the lower die 102, the forming equipment further comprises a flattening clamping mechanism 2 and a cooling mechanism 3, the flattening clamping mechanism 2 is arranged on the lower die 102 and is in transmission connection with the upper die 101, when the upper die 101 moves from the initial height to the execution height, the flattening clamping mechanism 2 radially flattens a blank pipe placed on the lower die 102, and when the upper die 101 moves from the execution height to the die assembly height, the flattening clamping mechanism 2 loosens the blank pipe to avoid the upper die 101; the cooling mechanism 3 is arranged on the upper die 101; the molding process comprises the following steps:
step one, horizontally placing a heated blank tube on a lower die 102; the lower die 102 is provided with a first semi-cylindrical groove extending along the horizontal direction, the diameter of the blank pipe is larger than that of the first semi-cylindrical groove, and the blank pipe is coaxially placed on the first semi-cylindrical groove;
step two, starting the driving assembly 103, and lowering the upper die 101 to an execution height from the initial height relative to the lower die 102, wherein in the process, the flat blank pipe is clamped by the flat clamping mechanism 2, the whole radial section of the blank pipe is elliptic, and the bottom of the blank pipe falls into the lower die 102; as shown in fig. 3, after the blank pipe is flattened, the bottom end cambered surface of the blank pipe falls into the first semi-cylindrical groove;
step three, continuously starting the driving assembly 103, in the process that the upper die 101 moves from the execution height to the die assembly height, loosening the blank pipe by the flat clamping mechanism 2, continuously pressing down the upper die 101 after abutting against the top end of the blank pipe, and enabling the bottom of the blank pipe to protrude downwards to form a bulge; as shown in fig. 7, a second semi-cylindrical groove column which can be coaxial with the first semi-cylindrical groove is arranged at the bottom end of the upper die 101, a downward depression is arranged at the central position of the second semi-cylindrical groove, the top end cambered surface of the flattened blank pipe falls into the second semi-cylindrical groove, and the blank pipe is fed downwards to enable the central position of the bottom of the blank pipe to form a bulge;
step four, starting the cooling mechanism 3 before mold closing, and cooling the upper cambered surfaces of the upper mold 101 and the blank pipe until mold closing is carried out to form a complete bulge; cooling the upper cambered surface of the blank pipe to prevent the upper cambered surface from continuously feeding downwards to deform;
and step five, punching and drawing the bulge.
As shown in fig. 3, further:
the flat clamping mechanism 2 comprises a positioning part, a clamping part and a linkage part;
the positioning parts are arranged on two sides of the blank pipe on the lower die 102 along the horizontal direction;
the two clamping parts are arranged on the positioning part in a sliding manner in opposite directions or in a back-to-back manner, and are positioned on two sides of the blank pipe on the lower die 102 in the horizontal radial direction;
the two linkage parts are arranged in the lower die 102 and are in transmission connection with the upper die 101, the two linkage parts are positioned on the outer sides of the two clamping parts, the linkage parts are in guide connection with the clamping parts, and when the upper die 101 moves from an initial height to an execution height, the two linkage parts descend to drive the two clamping parts to move relatively so as to clamp a blank pipe placed on the lower die 102; when the upper die 101 moves from the execution height to the die assembly height, the two linkage parts continuously descend to drive the two clamping parts to loosen the blank pipe placed on the lower die 102.
As shown in fig. 3, further:
the positioning part comprises a first fixed seat 201 and a fixed rod 202, the first fixed seat 201 is fixedly arranged on the lower die 102 along two sides of the blank pipe in the axial direction, the fixed rod 202 is horizontally arranged on the first fixed seat 201, and the fixed rod 202 extends along the blank pipe in the radial direction;
the clamping part comprises a mounting rack 203, a second fixed seat 204, a roller shaft 205, a first side plate 206 and a spring 207, the second fixed seat 204 is fixedly arranged at two sides of the mounting rack 203, and the two mounting racks 203 are arranged on the fixed rod 202 in a sliding manner in an opposite or opposite direction through the second fixed seat 204; the roller shaft 205 is rotatably arranged outside the mounting frame 203, and the roller shaft 205 extends along the axial direction of the blank pipe; the first side plate 206 is fixedly arranged at the top end of the mounting frame 203, and the first side plate 206 extends along the axial direction of the blank pipe; the spring 207 is sleeved on the fixing rod 202, and two ends of the spring 207 are respectively abutted against opposite sides of the first fixing seat 201 and the second fixing seat 204;
the linkage part comprises a second side plate 209, a connecting column 210 and a positioning plate 211, wherein the second side plate 209 is arranged at the outer side of the mounting frame 203 along the vertical direction; the connecting column 210 is fixedly connected with the upper die 101 and the second side plate 209 along the vertical direction; the locating plate 211 is equidistantly arranged on one side of the second side plate 209 facing the mounting frame 203, a side top is arranged on the outer side of the locating plate 211, a first oblique side edge is located at the top end of the side top and connected with the side top, a second oblique side plate is located at the bottom end of the side top and connected with the bottom end of the side top, the roller shaft 205 is elastically abutted to the locating plate 211, the side top, the first oblique side edge and the second oblique side edge are in sliding fit with the roller shaft 205, when the upper die 101 moves from the initial height to the execution height, the roller shaft 205 moves from the bottom end of the second oblique side edge to the side top, and when the upper die 101 moves from the execution height to the die closing height, the roller shaft 205 moves from the side top to the top end of the first oblique side edge.
As shown in fig. 4, further:
the positioning part comprises a first fixed seat 201 and a fixed rod 202, the first fixed seat 201 is fixedly arranged on the lower die 102 along two sides of the blank pipe in the axial direction, the fixed rod 202 is horizontally arranged on the first fixed seat 201, and the fixed rod 202 extends along the blank pipe in the radial direction;
the clamping part comprises mounting frames 203, a roller shaft 205, a first side plate 206 and a magnetic rod 208, second fixing seats 204 are arranged on two sides of each mounting frame 203, and the two mounting frames 203 are arranged on the fixing rod 202 in a sliding mode in an opposite or back mode through the second fixing seats 204; the roller shaft 205 is rotatably arranged on the outer side of the mounting frame 203, the roller shaft 205 extends along the axial direction of the blank pipe, and the interior of the roller shaft 205 is hollow; the first side plate 206 is fixedly arranged at the top end of the mounting frame 203, and the first side plate 206 extends along the axial direction of the blank pipe; the magnetic rod 208 is disposed in the hollow roller shaft 205;
the linkage part comprises a second side plate 209, a connecting column 210 and a positioning plate 211, wherein the second side plate 209 is arranged at the outer side of the mounting frame 203 along the vertical direction; the connecting column 210 is fixedly connected with the upper die 101 and the second side plate 209 along the vertical direction; the locating plate 211 is equidistantly arranged on one side of the second side plate 209 facing the mounting frame 203, a side top is arranged on the outer side of the locating plate 211, a first oblique side edge is arranged at the top end of the side top and connected with the side top, a second oblique side plate is arranged at the bottom end of the side top and connected with the side top, the roller shaft 205 is magnetically adsorbed on the locating plate 211 through a magnetic rod 208, the side top, the first oblique side edge and the second oblique side edge are in sliding fit with the roller shaft 205, when the upper die 101 moves from an initial height to an execution height, the roller shaft 205 moves to the side top from the bottom end of the second oblique side edge, when the upper die 101 moves to a die closing height from the execution height, the roller shaft 205 moves to the top end of the first oblique side edge from the side top.
As shown in fig. 5 and 6, further:
the upper die 101 is a split part, and the cooling mechanism 3 comprises a heat exchange tube 301, a first main flow tube 302 and a second main flow tube 303;
the heat exchange tubes 301 are uniformly distributed in the dividing surface of the upper die 101;
the first main flow pipe 302 is connected with one end of all the heat exchange pipes 301;
the second main flow pipe 303 is connected to the other ends of all the heat exchange pipes 301, and the heat exchange liquid flows through the first main flow pipe 302, the heat exchange pipes 301 and the second main flow pipe 303 in sequence.
As shown in fig. 2-9, further:
a forming device of a three-way pipe for pipeline engineering comprises a lower die 102, an upper die 101 arranged at the top of the lower die 102, and a driving assembly 103 used for driving the upper die 101 to move towards the lower die 102, wherein the upper die 101 sequentially has an initial height, an execution height and a die assembly height from top to bottom relative to the lower die 102, the forming device further comprises a flattening mechanism 2 and a cooling mechanism 3, the flattening mechanism 2 is arranged on the lower die 102 and is in transmission connection with the upper die 101, when the upper die 101 moves from the initial height to the execution height, the flattening mechanism 2 flattens a blank pipe placed on the lower die 102 along a radial direction, and when the upper die 101 moves from the execution height to the die assembly height, the flattening mechanism 2 loosens the blank pipe to avoid the upper die 101; the cooling mechanism 3 is provided on the upper die 101.
Placing a blank pipe on a lower die 102, starting a driving assembly 103 to enable an upper die 101 to move to a die assembly height relative to the lower die 102 after passing through an execution height from an initial height, gradually clamping the flat blank pipe by a flat clamping mechanism 2 in the process that the upper die 101 moves to the execution height from the initial height, loosening the blank pipe by a clamping part to avoid opening the upper die 101 when the upper die 101 moves to the die assembly height from the execution height, starting a cooling mechanism 3 to cool the top end of the blank pipe before the upper die 101 and the lower die 102 are closed to prevent the top end of the blank pipe from continuously moving downwards to deform, forming a downward bulge at the middle position of the bottom of the blank pipe after die assembly is completed, and then opening and drawing the bulge to obtain a three-way pipe;
this application is through all realizing on one set of equipment the clamp of blank pipe is flat, suppression and cooling, has avoided need frequently to transport blank pipe and lose a large amount of thermal problems, and this former's stable in structure can once press the blank pipe of heating into the semi-manufactured goods blank pipe that the bottom has the swell, and calorific loss is little, has practiced thrift the energy.
As shown in fig. 3, further:
the flat clamping mechanism 2 comprises a positioning part, a clamping part and a linkage part;
the positioning parts are arranged on two sides of the blank pipe on the lower die 102 along the horizontal direction; thereby positioning the clamping parts to enable the two clamping parts to move stably;
the two clamping parts are arranged on the positioning part in a sliding manner in opposite directions or in a back-to-back manner, and are positioned on two sides of the blank pipe on the lower die 102 in the horizontal radial direction; so as to clamp the blank pipe from two sides;
the two linkage parts are arranged in the lower die 102 and are in transmission connection with the upper die 101, so that the linkage parts can move along with the lifting of the upper die 101, the two linkage parts are positioned on the outer sides of the two clamping parts, and the linkage parts are in guide connection with the clamping parts, so that the clamping parts can be guided to displace along the horizontal direction through the linkage parts connected with the upper die 101; when the upper die 101 moves from the initial height to the execution height, the two linkage parts descend to drive the two clamping parts to move relatively so as to clamp the blank pipe placed on the lower die 102; when the upper die 101 moves from the execution height to the die assembly height, the two linkage portions continuously descend to drive the two clamping portions to loosen the blank tubes placed on the lower die 102, and the clamping portions can stably clamp the blank tubes on the lower die 102 along the horizontal direction through linkage of the clamping portions and the linkage portions.
As shown in fig. 3, further:
the positioning part comprises a first fixed seat 201 and a fixed rod 202, the first fixed seat 201 is fixedly arranged on the lower die 102 along two sides of the blank pipe in the axial direction, the fixed rod 202 is horizontally arranged on the first fixed seat 201, and the fixed rod 202 extends along the blank pipe in the radial direction; two fixing rods 202 can be horizontally arranged on two sides of the lower die 102, so that the clamping part can be conveniently arranged, and the clamping part can stably slide along the horizontal direction under the action of the fixing rods 202;
the clamping part comprises a mounting rack 203, a second fixed seat 204, a roller shaft 205, a first side plate 206 and a spring 207, the second fixed seat 204 is fixedly arranged at two sides of the mounting rack 203, and the two mounting racks 203 are arranged on the fixed rod 202 in a sliding manner in an opposite or opposite direction through the second fixed seat 204; the roller shaft 205 is rotatably arranged on the outer side of the mounting frame 203, and the roller shaft 205 extends along the axial direction of the blank pipe; the first side plate 206 is fixedly arranged at the top end of the mounting frame 203, and the first side plate 206 extends along the axial direction of the blank pipe; the spring 207 is sleeved on the fixing rod 202, and two ends of the spring 207 are respectively abutted against opposite sides of the first fixing seat 201 and the second fixing seat 204; the two placing plates can be elastically arranged on the fixing rod 202 through the spring 207, so that the first side plate 206 can be reset along the horizontal direction when the mold is closed, the upper mold 101 is avoided being opened, and the upper mold 101 is prevented from pressurizing the first side plate 206;
the linkage part comprises a second side plate 209, a connecting column 210 and a positioning plate 211, wherein the second side plate 209 is arranged at the outer side of the mounting frame 203 along the vertical direction; the connecting column 210 is fixedly connected with the upper die 101 and the second side plate 209 along the vertical direction, and the lifting of the upper die 101 can also guide the second side plate 209 to lift along the vertical direction through the connecting column 210; the positioning plate 211 is arranged on one side, facing the mounting frame 203, of the second side plate 209 at equal intervals, a side top is arranged on the outer side of the positioning plate 211, a first oblique side edge is located at the top end of the side top and connected with the side top, and a second oblique side plate is located at the bottom end of the side top and connected with the side top, the roller shaft 205 is elastically abutted to the positioning plate 211, the side top, the first oblique side edge and the second oblique side edge are in sliding fit with the roller shaft 205, when the upper die 101 moves from an initial height to an execution height, the roller shaft 205 moves from the bottom end of the second oblique side edge to the side top, when the upper die 101 moves from the execution height to a die closing height, the roller shaft 205 moves from the side top to the top end of the first oblique side edge, and abuts to the positioning plate 211 under the action of elastic force, when the positioning plate 211 goes up and down along the vertical direction, the roller shaft 205 is always abutted to the positioning plate 211 due to the action of the elastic abutting force, the roller shaft can move along the tracks of the side top, the first oblique side plate 206 and can move from the horizontal direction when the upper die blank 101 moves to the execution height, so that the flat blank can be loosened from the upper die closing height and the upper die 101 to the lower die 101.
As shown in fig. 4, further:
the positioning part comprises a first fixed seat 201 and a fixed rod 202, the first fixed seat 201 is fixedly arranged on the lower die 102 along two sides of the blank pipe in the axial direction, the fixed rod 202 is horizontally arranged on the first fixed seat 201, and the fixed rod 202 extends along the blank pipe in the radial direction;
the clamping part comprises mounting frames 203, a roller shaft 205, a first side plate 206 and a magnetic rod 208, second fixing seats 204 are arranged on two sides of each mounting frame 203, and the two mounting frames 203 are arranged on the fixing rod 202 in a sliding mode in an opposite or back mode through the second fixing seats 204; the roller shaft 205 is rotatably arranged on the outer side of the mounting frame 203, the roller shaft 205 extends along the axial direction of the blank pipe, and the interior of the roller shaft 205 is hollow; the first side plate 206 is fixedly arranged at the top end of the mounting frame 203, and the first side plate 206 extends along the axial direction of the blank pipe; the magnetic rod 208 is disposed in the hollow roller shaft 205;
the linkage part comprises a second side plate 209, a connecting column 210 and a positioning plate 211, wherein the second side plate 209 is arranged at the outer side of the mounting frame 203 along the vertical direction; the connecting column 210 is fixedly connected with the upper die 101 and the second side plate 209 along the vertical direction; the positioning plate 211 is arranged on one side, facing the mounting frame 203, of the second side plate 209 at equal intervals, a side top is arranged on the outer side of the positioning plate 211, a first oblique side edge is located at the top end of the side top and connected with the side top, a second oblique side plate is located at the bottom end of the side top and connected with the bottom end of the side top, the roller shaft 205 is magnetically adsorbed on the positioning plate 211 through a magnetic rod 208, the side top, the first oblique side edge and the second oblique side edge are in sliding fit with the roller shaft 205, when the upper die 101 moves from an initial height to an execution height, the roller shaft 205 moves from the bottom end of the second oblique side edge to the side top, when the upper die 101 moves from the execution height to a die clamping height, the roller shaft 205 moves from the side top to the top end of the first oblique side edge, the roller shaft 205 can be always abutted to the positioning plate 211 through a magnetic attraction mode so as to facilitate automatic resetting of the first side plate 206, when the upper die 101 moves from the execution height to the die clamping height, the two first side plates 206 can move back to loosen the clamped blank tube, and enable the upper die 101 and the lower die 102 to complete die clamping of a blank tube.
As shown in fig. 5 and 6, further:
the upper die 101 is a split part, and the cooling mechanism 3 comprises a heat exchange tube 301, a first main flow tube 302 and a second main flow tube 303;
the heat exchange tubes 301 are uniformly distributed in the dividing surface of the upper die 101, so that the heat exchange tubes 301 are convenient to install;
the first main flow pipe 302 is connected with one end of all the heat exchange pipes 301;
the second main flow pipe 303 is connected with the other ends of all the heat exchange pipes 301, the heat exchange liquid flows through the first main flow pipe 302, the heat exchange pipes 301 and the second main flow pipe 303 in sequence, and the heat exchange liquid can rapidly cool the tops of the blank pipes, so that the tops of the blank pipes are hardened, and the situation that the tops of the blank pipes continuously move downwards to deform when the dies are closed is avoided.
The above examples, which are intended to represent only one or more embodiments of the present invention, are described in greater detail and with greater particularity, and are not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A forming process of a three-way pipe for pipeline engineering is realized through forming equipment, the forming equipment comprises a lower die (102), an upper die (101) arranged at the top of the lower die (102), and a driving assembly (103) used for driving the upper die (101) to move towards the lower die (102), and is characterized in that the upper die (101) has an initial height, an execution height and a die assembly height from top to bottom in sequence relative to the lower die (102), the forming equipment further comprises a flat clamping mechanism (2) and a cooling mechanism (3), the flat clamping mechanism (2) is arranged on the lower die (102) and is in transmission connection with the upper die (101), when the upper die (101) moves from the initial height to the execution height, the flat clamping mechanism (2) clamps a blank pipe placed on the lower die (102) along a radial direction, and when the upper die (101) moves from the execution height to the die assembly height, the flat clamping mechanism (2) loosens the blank pipe to avoid the upper die (101); the cooling mechanism (3) is arranged on the upper die (101); the molding process comprises the following steps:
horizontally placing a heated blank pipe on a lower die (102); step two, starting a driving assembly (103), and enabling an upper die (101) to descend to an execution height from an initial height relative to a lower die (102), wherein in the process, a flat blank pipe is clamped by a flat clamping mechanism (2), the whole radial section of the blank pipe is oval, and the bottom of the blank pipe falls into the lower die (102); step three, continuously starting the driving assembly (103), in the process that the upper die (101) moves from the execution height to the die assembly height, loosening the blank pipe by the flat clamping mechanism (2), pressing the upper die (101) downwards continuously after abutting against the top end of the blank pipe, and enabling the bottom of the blank pipe to protrude downwards to form a bulge; step four, before mold closing, starting a cooling mechanism (3) to cool the upper mold (101) and the upper arc surface of the blank pipe until mold closing is carried out to form a complete bulge; and step five, punching and drawing the bulge.
2. The forming process of the three-way pipe for the pipeline engineering, according to claim 1, is characterized in that the flattening mechanism (2) comprises a positioning part, a clamping part and a linkage part;
the positioning parts are arranged on two axial sides of the blank pipe on the lower die (102) along the horizontal direction;
the two clamping parts are arranged on the positioning part in a sliding manner in opposite directions or in a back-to-back manner, and are positioned on two sides of the horizontal and radial direction of the blank pipe on the lower die (102);
the two linkage parts are arranged in the lower die (102) and are in transmission connection with the upper die (101), the two linkage parts are positioned on the outer sides of the two clamping parts and are in guide connection with the clamping parts, and when the upper die (101) moves from an initial height to an execution height, the two linkage parts descend to drive the two clamping parts to move relatively to clamp a blank pipe placed on the lower die (102); when the upper die (101) moves from the execution height to the die closing height, the two linkage parts continue to descend to drive the two clamping parts to loosen the blank pipe placed on the lower die (102).
3. The forming process of the three-way pipe for pipeline engineering, according to claim 2, is characterized in that the positioning portion comprises a first fixing seat (201) and a fixing rod (202), the first fixing seat (201) is fixedly arranged on the lower die (102) along two sides of the blank pipe in the axial direction, the fixing rod (202) is horizontally arranged on the first fixing seat (201), and the fixing rod (202) extends along the blank pipe in the radial direction;
the clamping part comprises a mounting frame (203), a second fixing seat (204), a roller shaft (205), a first side plate (206) and a spring (207), the second fixing seat (204) is fixedly arranged on two sides of the mounting frame (203), and the two mounting frames (203) are arranged on the fixing rod (202) in a sliding mode in an opposite or opposite mode through the second fixing seat (204); the roller shaft (205) is rotatably arranged on the outer side of the mounting frame (203), and the roller shaft (205) extends along the axial direction of the blank pipe; the first side plate (206) is fixedly arranged at the top end of the mounting frame (203), and the first side plate (206) extends along the axial direction of the blank pipe; the spring (207) is sleeved on the fixing rod (202), and two ends of the spring (207) are respectively abutted against opposite sides of the first fixing seat (201) and the second fixing seat (204);
the linkage part comprises a second side plate (209), a connecting column (210) and a positioning plate (211), and the second side plate (209) is arranged on the outer side of the mounting rack (203) along the vertical direction; the connecting column (210) is fixedly connected with the upper die (101) and the second side plate (209) along the vertical direction; the positioning plate (211) is arranged on one side, facing the mounting frame (203), of the second side plate (209) at equal intervals, a side top is arranged on the outer side of the positioning plate (211), a first inclined side edge is arranged at the top end of the side top and connected with the side top, a second inclined side plate is arranged at the bottom end of the side top and connected with the side top, the roller shaft (205) is elastically abutted to the positioning plate (211), the side top, the first inclined side edge and the second inclined side edge are in sliding fit with the roller shaft (205), when the upper die (101) moves to an execution height from an initial height, the roller shaft (205) moves to the side top from the bottom end of the second inclined side edge, when the upper die (101) moves to a die closing height from the execution height, the roller shaft (205) moves to the top end of the first inclined side edge from the side top.
4. The forming process of the three-way pipe for the pipeline engineering, according to claim 2, is characterized in that the positioning portion comprises a first fixing seat (201) and a fixing rod (202), the first fixing seat (201) is fixedly arranged on the lower die (102) along two axial sides of the blank pipe, the fixing rod (202) is horizontally arranged on the first fixing seat (201), and the fixing rod (202) extends along the radial direction of the blank pipe;
the clamping part comprises mounting frames (203), a roll shaft (205), a first side plate (206) and a magnetic rod (208), second fixing seats (204) are arranged on two sides of each mounting frame (203), and the two mounting frames (203) are arranged on the fixing rod (202) in a sliding mode in an opposite or opposite mode through the second fixing seats (204); the roller shaft (205) is rotatably arranged on the outer side of the mounting frame (203), the roller shaft (205) extends along the axial direction of the blank pipe, and the interior of the roller shaft (205) is hollow; the first side plate (206) is fixedly arranged at the top end of the mounting frame (203), and the first side plate (206) extends along the axial direction of the blank pipe; the magnetic force rod (208) is arranged in the hollow roll shaft (205);
the linkage part comprises a second side plate (209), a connecting column (210) and a positioning plate (211), and the second side plate (209) is arranged on the outer side of the mounting rack (203) along the vertical direction; the connecting column (210) is fixedly connected with the upper die (101) and the second side plate (209) along the vertical direction; the positioning plate (211) is arranged on one side, facing the mounting frame (203), of the second side plate (209) at equal intervals, a side top is arranged on the outer side of the positioning plate (211), a first oblique side edge is located at the top end of the side top and connected with the side top, a second oblique side plate is located at the bottom end of the side top and connected with the side top, the roller shaft (205) is magnetically adsorbed on the positioning plate (211) through a magnetic rod (208), the side top, the first oblique side edge and the second oblique side edge are in sliding fit with the roller shaft (205), when the upper die (101) moves from an initial height to an execution height, the roller shaft (205) moves from the bottom end of the second oblique side edge to the side top, and when the upper die (101) moves from the execution height to a die closing height, the roller shaft (205) moves from the side top to the top end of the first oblique side edge.
5. The forming process of the three-way pipe for the pipeline engineering according to any one of claims 1 to 4, wherein the upper die (101) is a split part, and the cooling mechanism (3) comprises a heat exchange pipe (301), a first main flow pipe (302) and a second main flow pipe (303);
the heat exchange tubes (301) are uniformly distributed in the dividing surface of the upper die (101);
the first main flow pipe (302) is connected with one end of all the heat exchange pipes (301);
the second main flow pipe (303) is connected with the other ends of all the heat exchange pipes (301), and the heat exchange liquid flows through the first main flow pipe (302), the heat exchange pipes (301) and the second main flow pipe (303) in sequence.
6. The forming equipment of the three-way pipe for the pipeline engineering comprises a lower die (102), an upper die (101) arranged at the top of the lower die (102), and a driving assembly (103) used for driving the upper die (101) to move towards the lower die (102), and is characterized in that the upper die (101) sequentially has an initial height, an execution height and a die assembly height from top to bottom relative to the lower die (102), the forming equipment further comprises a flat clamping mechanism (2) and a cooling mechanism (3), the flat clamping mechanism (2) is arranged on the lower die (102) and is in transmission connection with the upper die (101), when the upper die (101) moves from the initial height to the execution height, the flat clamping mechanism (2) clamps and flattens a blank pipe placed on the lower die (102) along the radial direction, and when the upper die (101) moves from the execution height to the die assembly height, the blank pipe is loosened by the flat clamping mechanism (2) so as to avoid the upper die (101); the cooling mechanism (3) is arranged on the upper die (101).
7. The forming equipment of the three-way pipe for the pipeline engineering as claimed in claim 6, wherein the flattening mechanism (2) comprises a positioning part, a clamping part and a linkage part;
the positioning parts are arranged on two axial sides of the blank pipe on the lower die (102) along the horizontal direction; the two clamping parts are arranged on the positioning part in a sliding manner in opposite directions or in a back-to-back manner, and are positioned on two sides of the horizontal and radial direction of the blank pipe on the lower die (102);
the two linkage parts are arranged in the lower die (102) and are in transmission connection with the upper die (101), the two linkage parts are positioned on the outer sides of the two clamping parts and are in guide connection with the clamping parts, and when the upper die (101) moves from an initial height to an execution height, the two linkage parts descend to drive the two clamping parts to move relatively so as to clamp a blank pipe placed on the lower die (102); when the upper die (101) moves from the execution height to the die closing height, the two linkage parts continuously descend to drive the two clamping parts to loosen the blank pipe placed on the lower die (102).
8. The forming equipment of the three-way pipe for the pipeline engineering as claimed in claim 7, wherein the positioning part comprises a first fixing seat (201) and a fixing rod (202), the first fixing seat (201) is fixedly arranged on the lower die (102) along two sides of the blank pipe in the axial direction, the fixing rod (202) is horizontally arranged on the first fixing seat (201), and the fixing rod (202) extends along the blank pipe in the radial direction; the clamping part comprises a mounting frame (203), a second fixing seat (204), a roller shaft (205), a first side plate (206) and a spring (207), the second fixing seat (204) is fixedly arranged on two sides of the mounting frame (203), and the two mounting frames (203) are arranged on the fixing rod (202) in a sliding mode in an opposite or opposite mode through the second fixing seat (204); the roller shaft (205) is rotatably arranged on the outer side of the mounting frame (203), and the roller shaft (205) extends along the axial direction of the blank pipe; the first side plate (206) is fixedly arranged at the top end of the mounting frame (203), and the first side plate (206) extends along the axial direction of the blank pipe; the spring (207) is sleeved on the fixing rod (202), and two ends of the spring (207) are respectively abutted against opposite sides of the first fixing seat (201) and the second fixing seat (204); the linkage part comprises a second side plate (209), a connecting column (210) and a positioning plate (211), and the second side plate (209) is arranged on the outer side of the mounting rack (203) along the vertical direction; the connecting column (210) is fixedly connected with the upper die (101) and the second side plate (209) along the vertical direction; the positioning plate (211) is arranged on one side, facing the mounting frame (203), of the second side plate (209) at equal intervals, a side top is arranged on the outer side of the positioning plate (211), a first inclined side edge is arranged at the top end of the side top and connected with the side top, a second inclined side plate is arranged at the bottom end of the side top and connected with the side top, the roller shaft (205) is elastically abutted to the positioning plate (211), the side top, the first inclined side edge and the second inclined side edge are in sliding fit with the roller shaft (205), when the upper die (101) moves to an execution height from an initial height, the roller shaft (205) moves to the side top from the bottom end of the second inclined side edge, when the upper die (101) moves to a die closing height from the execution height, the roller shaft (205) moves to the top end of the first inclined side edge from the side top.
9. The forming equipment of the three-way pipe for pipeline engineering, according to claim 7, is characterized in that the positioning part comprises a first fixing seat (201) and a fixing rod (202), the first fixing seat (201) is fixedly arranged on the lower die (102) along two sides of the blank pipe in the axial direction, the fixing rod (202) is horizontally arranged on the first fixing seat (201), and the fixing rod (202) extends along the radial direction of the blank pipe;
the clamping part comprises mounting frames (203), a roll shaft (205), a first side plate (206) and a magnetic rod (208), second fixing seats (204) are arranged on two sides of the two mounting frames (203), and the two mounting frames (203) are arranged on the fixing rod (202) in a sliding mode in an opposite or opposite mode through the second fixing seats (204); the roller shaft (205) is rotatably arranged on the outer side of the mounting frame (203), the roller shaft (205) extends along the axial direction of the blank pipe, and the interior of the roller shaft (205) is hollow; the first side plate (206) is fixedly arranged at the top end of the mounting frame (203), and the first side plate (206) extends along the axial direction of the blank pipe; the magnetic force rod (208) is arranged in the hollow roll shaft (205);
the linkage part comprises a second side plate (209), a connecting column (210) and a positioning plate (211), and the second side plate (209) is arranged on the outer side of the mounting rack (203) along the vertical direction; the connecting column (210) is fixedly connected with the upper die (101) and the second side plate (209) along the vertical direction; the positioning plate (211) is arranged on one side, facing the mounting frame (203), of the second side plate (209) at equal intervals, a side top is arranged on the outer side of the positioning plate (211), a first oblique side edge is arranged at the top end of the side top and connected with the side top, a second oblique side plate is arranged at the bottom end of the side top and connected with the side top, the roller shaft (205) is magnetically adsorbed on the positioning plate (211) through a magnetic rod (208), the side top, the first oblique side edge and the second oblique side edge are in sliding fit with the roller shaft (205), when the upper die (101) moves to an execution height from an initial height, the roller shaft (205) moves to the side top from the bottom end of the second oblique side edge, when the upper die (101) moves to a die assembly height from the execution height, the roller shaft (205) moves to the top end of the first oblique side edge from the side top.
10. The forming equipment of the three-way pipe for the pipeline engineering as claimed in any one of claims 6 to 9, wherein the upper die (101) is a split part, and the cooling mechanism (3) comprises a heat exchange pipe (301), a first main flow pipe (302) and a second main flow pipe (303);
the heat exchange tubes (301) are uniformly distributed in the dividing surface of the upper die (101);
the first main flow pipe (302) is connected with one end of each heat exchange pipe (301);
the second main flow pipe (303) is connected with the other ends of all the heat exchange pipes (301), and the heat exchange liquid flows through the first main flow pipe (302), the heat exchange pipes (301) and the second main flow pipe (303) in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211060289.7A CN115475850B (en) | 2022-08-31 | 2022-08-31 | Forming process and equipment of three-way pipe for pipeline engineering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211060289.7A CN115475850B (en) | 2022-08-31 | 2022-08-31 | Forming process and equipment of three-way pipe for pipeline engineering |
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| CN115475850A true CN115475850A (en) | 2022-12-16 |
| CN115475850B CN115475850B (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211060289.7A Active CN115475850B (en) | 2022-08-31 | 2022-08-31 | Forming process and equipment of three-way pipe for pipeline engineering |
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| CN215032706U (en) * | 2021-06-04 | 2021-12-07 | 无锡市新峰管业有限公司 | Hot-press forming die for super-long branch pipe tee pipe fitting |
| CN215144028U (en) * | 2021-05-25 | 2021-12-14 | 印刚管道制造有限公司 | Many sizes tee bend hot briquetting mould |
| CN215279225U (en) * | 2021-05-11 | 2021-12-24 | 济宁耀坤机械有限公司 | Hot extrusion forming device for three-way pipe |
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|---|---|---|---|---|
| US4106322A (en) * | 1976-09-22 | 1978-08-15 | Evgeny Nikolaevich Moshnin | Press for pressing pipe fittings |
| US4246772A (en) * | 1978-07-19 | 1981-01-27 | Moshnin Evgeny N | Pressing branch pipe on thick-walled shell-device for realization thereof |
| JPS56136223A (en) * | 1980-03-28 | 1981-10-24 | Sumitomo Metal Ind Ltd | Manufacture of tee joint |
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| CN215032706U (en) * | 2021-06-04 | 2021-12-07 | 无锡市新峰管业有限公司 | Hot-press forming die for super-long branch pipe tee pipe fitting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115475850B (en) | 2023-05-23 |
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