CN116371987A - Integral forming device for coiled pipe for boiler - Google Patents
Integral forming device for coiled pipe for boiler Download PDFInfo
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- CN116371987A CN116371987A CN202310243998.7A CN202310243998A CN116371987A CN 116371987 A CN116371987 A CN 116371987A CN 202310243998 A CN202310243998 A CN 202310243998A CN 116371987 A CN116371987 A CN 116371987A
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- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 230000000903 blocking effect Effects 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000009423 ventilation Methods 0.000 claims description 16
- 238000000926 separation method Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 239000007789 gas Substances 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000003856 thermoforming Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
- B21D11/07—Making serpentine-shaped articles by bending essentially in one plane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention relates to the technical field of molding, in particular to a coiled pipe integrated molding device for a boiler, which comprises a fixed frame, a base, a top plate arranged above the base, a lower die movably arranged at the upper end of the base, an upper die fixedly arranged at the bottom of the top plate, a die opening arranged in the middle of the lower die, and a top block movably arranged at the bottom end of the upper die, wherein the upper end of the lower die is provided with a first groove, the interior of the lower die is provided with an inner cavity, and the first groove and the interior of the inner cavity are arranged in a demolding mechanism for assisting demolding. According to the invention, by arranging the mechanisms such as the first groove, the movable plate, the memory spring and the like, a worker places the pipe on the lower die, then the control system enables the upper die to move downwards, a snake-shaped groove structure is arranged in the lower die, the pipe is pressed by the top block at the upper die, so that the pipe is produced into a snake-shaped shape, when the upper die contacts the lower die, the movable plate is extruded by the upper die and moves towards the inside of the first groove, and the movable plate extrudes the memory spring to enable the memory spring to shrink.
Description
Technical Field
The invention relates to the technical field of molding, in particular to a coiled pipe integrated molding device for a boiler.
Background
The industrial boiler products are divided into two types, namely steam for generating electricity or supplying gas, for example, steam vaporization can be used in a fertilizer plant, coal is used as a raw material to synthesize chemical fertilizer, the industrial boiler is a typical industrial boiler, the industrial boiler is mainly powered by coal, and a general waste heat boiler of fuel gas is used for recovering waste heat. Industrial boilers it is common for circulating fluidized bed boilers industrial boilers to be important thermal energy power plants.
The coiled pipe is a heated pipeline which is formed by a plurality of roundabout bending processes in a plane; in industrial boilers, in order to increase the heat exchange area of the boiler and improve the heat exchange efficiency of the boiler, a coiled pipe is mostly adopted as a main heat exchange surface of the boiler.
The serpentine tube is formed by stamping using a die comprising a male die and a female die which are machined or cast into a pre-designed specific shape so that the heated sheet material can be wrapped around or into the dies to form a product of the same shape. The process of heating the tubing stock to a temperature, typically 260-360F, and then rapidly feeding the softened material into a specific mold for forming is called thermoforming.
The mill can be with the sheet production into shapes such as circular, rectangle, arc when producing as required, but current great circular sheet of area often can adhere to the mould when using the mould production, needs the manual work to take off the mould and carries out the manual demoulding, and then the manual work often has certain not enough in carrying out the demoulding separation.
At present, when a product is manufactured by utilizing a mould in a factory, the heated pipe raw material is often put into the mould and then is subjected to compression molding, the product is manually taken out after being cooled, the finished product is required to be manually taken out when the existing product is demoulded, a worker judges the applied force by himself, the demoulding efficiency is low, the force applied by the worker is uncertain, and the finished product is easy to damage when the forced demoulding is carried out by using too large external force.
For this reason, a serpentine tube integrated molding device for a boiler is proposed.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a serpentine pipe integrated forming device for a boiler, which aims to solve the technical problems that: when the pipe is manually demolded, the force applied by the staff is uncertain, and the finished product is easily damaged by forced demolding by using too large external force.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a coiled pipe integrated into one piece device for boiler, includes mount, base, locates the roof above the base, movable mounting is in the lower mould of base upper end, fixed mounting is in the upper mould of roof bottom, sets up the die orifice at the lower mould middle part, movable mounting is in the kicking block of upper mould bottom, the upper end of lower mould has seted up first recess, the inside of lower mould has seted up the inner chamber, the demoulding mechanism that is used for supplementary drawing of patterns is located to the inside of first recess and inner chamber;
the demolding mechanism comprises a movable plate movably arranged in the first groove, memory springs are fixedly connected to the bottom walls of the inner cavities, a supporting plate is fixedly connected to the top ends of the memory springs, a connecting rod is fixedly arranged at the upper end of the supporting plate, and the top ends of the connecting rods penetrate through the top wall of the inner cavity and are fixedly arranged at the bottom of the movable plate;
and an auxiliary heating mechanism for promoting the memory spring to extend is fixedly arranged on the side wall of the lower die.
In a preferred embodiment, the auxiliary temperature rising mechanism comprises a water inlet pipe fixedly installed on one side of a lower die, an annular cooling groove is formed in the lower die, a first tee joint is arranged on the other side of the lower die, a gas-liquid separation membrane is fixedly installed in the first tee joint upper pipe, a conical pipe is fixedly installed on the side wall of the lower die, the top end of the first tee joint is fixedly connected to the bottom end of the conical pipe, an air outlet pipe is fixedly connected to the top end of the conical pipe, an air return groove is formed in the lower die, one end of the air outlet pipe is communicated with one end of the air return groove, the other end of the air return groove is communicated with two inner cavities, and a channel is formed between every two inner cavities and used for mutual communication.
In a preferred embodiment, the bottom fixed mounting of base has two second tee bend joints that symmetry set up, two the top of second tee bend joint all runs through the lateral wall of base and extends to its upper end, the inside of second tee bend joint is equipped with first piston, the top fixed mounting of first piston has the ejector pin, the top fixed mounting of ejector pin is in the bottom of lower mould, the gas outlet has been seted up to the bottom of second tee bend joint, the air vent that two symmetries set up has been seted up to the inside of lower mould, through the hose intercommunication between the top of second tee bend joint and the air vent, and the top of air vent and the bottom intercommunication of die orifice, all be equipped with the control valve that is used for controlling the air to get into in two other pipelines of second tee joint.
In a preferred embodiment, the control valve comprises a fixed plate fixedly installed on the inner wall of the second three-way joint, a telescopic rod is fixedly installed on one side of the fixed plate, a second piston is fixedly installed at the telescopic tail end of the telescopic rod, a second spring is sleeved on the telescopic rod, and two ends of the second spring are fixedly connected to the fixed plate and the side wall of the second piston respectively.
In a preferred embodiment, a control mechanism for controlling air flow is arranged in the lower die, the control mechanism comprises a conical groove arranged at the top of the two ventilation grooves, a conical blocking block is slidably arranged in the conical groove, and the blocking block is connected with the inner wall of the conical groove through an elastic rope;
drainage grooves are uniformly formed in the lower surface of the blocking block, and the notch of each drainage groove points to the horizontal direction.
In a preferred embodiment, the support plate is provided in an elongated configuration and has a width less than the diameter of the lumen.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by arranging the mechanisms such as the first groove, the movable plate, the memory spring and the like, a worker places the pipe on the lower die, then the control system enables the upper die to move downwards, a serpentine groove structure is arranged in the lower die, the pipe is pressed by utilizing the ejector block at the upper die, so that the pipe is produced into a serpentine shape, the movable plate is extruded by the upper die to move towards the inside of the first groove when the upper die contacts the lower die, the movable plate extrudes the memory spring to shrink, the finished product and the die orifice are bonded and then always extrude the movable plate to rest in the inside of the first groove, the upper die and the lower die are separated after being cooled for a period of time, the existing thermal forming die mostly uses metal materials, part of heat generated in the thermal forming process is transferred into the inner cavity, but after being cooled, the temperature is reduced, and the periphery of the inner cavity is provided with a heat insulation coating, the part of the transferred heat is insufficient to enable the memory spring to stretch, the memory spring is heated and the movable plate is ejected out of the first groove under the promotion of the heating mechanism, and the finished product is driven to be ejected out of the first groove, compared with the ejection structure in the prior art, a bad workpiece can be ejected, the top surface of the movable plate is arranged outside the die, and the top edge is hard to be damaged.
2. The invention is characterized in that a water inlet pipe, an annular cooling groove, a first three-way joint and other mechanisms are arranged, a lower die is prepared by splicing an upper part and a lower part, the annular part of the annular cooling groove is positioned on the contact surface of the upper part and the lower part, the annular part is processed in advance, and then the upper part and the lower part are spliced to obtain the lower die, so that the annular cooling groove in the lower die is opened; circulating water slowly enters the annular cooling groove through the water inlet pipe to cool the lower die and enable the pipe to be formed, steam is generated after the circulating water absorbs heat and flows out of the annular cooling groove through the first tee joint, part of steam flows into the conical pipe through the first tee joint under the action that the conical pipe promotes gas flow, part of steam generates air flow in the first tee joint along with water flow, part of steam is isolated by the gas-liquid separation membrane in the first tee joint, the top end of the conical pipe is communicated with two inner cavities, the steam has enough space to enter the inner cavities, part of steam is accelerated into the inner cavities through the conical pipe according to the characteristics of the conical pipe, the memory spring stretches under the heating of the hot steam, and the movable plate is promoted to pop up the first groove.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a front cross-sectional view of a fly leaf in accordance with the present invention;
FIG. 3 is a front cross-sectional view of the die of the present invention;
FIG. 4 is a top view of the annular cooling trough of the present invention;
FIG. 5 is a top view of the present invention in section at the lumen;
FIG. 6 is an enlarged view of the stripping mechanism of the present invention;
FIG. 7 is an enlarged view of the auxiliary temperature raising mechanism of the present invention;
FIG. 8 is an enlarged view of the control mechanism of the present invention;
fig. 9 is an enlarged view of the structure of fig. 3 a in accordance with the present invention.
In the figure: 1. a fixing frame; 2. a base; 3. a top plate; 4. a lower die; 41. a die orifice; 5. an upper die; 51. a top block; 6. a demoulding mechanism; 61. a first groove; 62. a movable plate; 63. an inner cavity; 64. a memory spring; 65. a support plate; 66. a connecting rod; 7. an auxiliary temperature rising mechanism; 71. a water inlet pipe; 72. an annular cooling tank; 73. a first three-way joint; 74. a gas-liquid separation membrane; 75. a conical tube; 76. an air outlet pipe; 77. an air return groove; 78. a channel; 8. a control mechanism; 81. a conical groove; 82. a barrier block; 83. drainage grooves; 84. an elastic rope; 85. a second three-way joint; 86. a first piston; 87. a push rod; 88. an air outlet; 89. a vent groove; 91. a fixing plate; 92. a telescopic rod; 93. a second piston; 94. and a second spring.
Detailed Description
The embodiments of the present invention will be clearly and completely described below with reference to the drawings in the present invention, and the configurations of the structures described in the following embodiments are merely examples, and the coiled pipe integrated forming device for a boiler according to the present invention is not limited to the structures described in the following embodiments, and all other embodiments obtained by a person having ordinary skill in the art without making any inventive effort are within the scope of the present invention.
Referring to fig. 1-7, the invention provides a coiled pipe integrated forming device for a boiler, which comprises a fixed frame 1, a base 2, a top plate 3 arranged above the base 2, a lower die 4 movably arranged at the upper end of the base 2, an upper die 5 fixedly arranged at the bottom of the top plate 3, a die orifice 41 arranged in the middle of the lower die 4, a top block 51 movably arranged at the bottom end of the upper die 5, a first groove 61 arranged at the upper end of the lower die 4, an inner cavity 63 arranged in the lower die 4, and a demoulding mechanism 6 for assisting demoulding arranged in the first groove 61 and the inner cavity 63;
the demoulding mechanism 6 comprises a movable plate 62 movably arranged in the first groove 61, memory springs 64 are fixedly connected to the bottom walls of the inner cavities 63, supporting plates 65 are fixedly connected to the top ends of the memory springs 64, connecting rods 66 are fixedly arranged at the upper ends of the supporting plates 65, and the top ends of the connecting rods 66 penetrate through the top walls of the inner cavities 63 and are fixedly arranged at the bottoms of the movable plate 62;
an auxiliary temperature raising mechanism 7 for promoting the extension of the memory spring 64 is fixedly mounted on the side wall of the lower die 4.
Compared with the prior art, the pipe is placed on the lower die 4 by staff through the mechanisms such as the first groove 61, the movable plate 62 and the memory spring 64, the pipe is moved downwards by the control system, the upper die 5 is moved downwards by the control system, the serpentine groove structure is arranged in the lower die 4, the pipe is produced into a serpentine shape by pressing the pipe by the ejector block 51 at the upper die 5, the movable plate 62 is moved towards the inside of the first groove 61 after being extruded by the upper die 5 when the upper die 5 contacts the lower die 4, the movable plate 62 extrudes the memory spring 64 to shrink the memory spring, the finished product is always extruded by the movable plate 62 after being bonded with the die orifice 41 and is still in the first groove 61, the upper die 5 and the lower die 4 are separated after being cooled for a period of time, the prior hot forming die is mostly made of metal materials, but after being cooled, the temperature is reduced, the transferred part of heat is insufficient to enable the memory spring 64 to be elongated by the ejector block, the memory spring 64 is ensured to be elongated under the promotion of the auxiliary temperature rising mechanism 7, the movable plate 62 is ejected out of the first groove 61, and the finished product is driven to eject out of the first groove 61, compared with the top edge of the prior art, the die can not be easily damaged, and the top edge of the die is not easily ejected outside the die cavity is arranged.
Referring to fig. 6 and 7, the auxiliary temperature raising mechanism 7 includes a water inlet pipe 71 fixedly installed at one side of the lower die 4, an annular cooling groove 72 is formed in the lower die 4, a first three-way joint 73 is arranged at the other side of the lower die 4, a gas-liquid separation membrane 74 is fixedly installed in the upper pipe of the first three-way joint 73, a conical pipe 75 is fixedly installed on the side wall of the lower die 4, the top end of the first three-way joint 73 is fixedly connected to the bottom end of the conical pipe 75, an air outlet pipe 76 is fixedly connected to the top end of the conical pipe 75, an air return groove 77 is formed in the lower die 4, one end of the air outlet pipe 76 is communicated with one end of the air return groove 77, the other end of the air return groove 77 is communicated with two inner cavities 63, and a channel 78 is formed between every two inner cavities 63 for mutual communication.
In the embodiment of the application, by arranging the mechanisms such as the water inlet pipe 71, the annular cooling groove 72, the first three-way joint 73 and the like, the lower die 4 is prepared by splicing an upper part and a lower part, the annular part of the annular cooling groove 72 is positioned on the contact surface of the upper part and the lower part, the annular part is processed in advance, and then the upper part and the lower part are spliced to obtain the lower die 4, so that the annular cooling groove 72 in the lower die 4 is opened; circulating water slowly enters the annular cooling groove 72 through the water inlet pipe 71 to cool the lower die 4 and enable the pipe to be formed, steam is generated after the circulating water absorbs heat, the steam flows out of the annular cooling groove 72 through the first three-way joint 73, part of the steam flows into the conical pipe 75 through the first three-way joint 73 under the action that the conical pipe 75 promotes gas flow, part of the steam generates air flow inside the first three-way joint 73 along with water flow, part of the steam is isolated from water vapor by the gas-liquid separation membrane 74 inside the first three-way joint 73, the top end of the conical pipe 75 is communicated with the two inner cavities 63, enough space is reserved for the steam to enter the inner cavities 63, part of the steam is accelerated into the inner cavities 63 by the conical pipe 75 according to the characteristics of the conical pipe 75, the memory spring 64 stretches under the heating of the hot steam, and the movable plate 62 is promoted to pop up the first groove 61.
Referring to fig. 2 and 9, the bottom of the base 2 is fixedly provided with two symmetrically arranged second tee joints 85, the top ends of the two second tee joints 85 penetrate through the side wall of the base 2 and extend to the upper end of the base, a first piston 86 is arranged in the second tee joint 85, a push rod 87 is fixedly arranged at the top end of the first piston 86, the top end of the push rod 87 is fixedly arranged at the bottom of the lower die 4, an air outlet 88 is formed in the bottom of the second tee joint 85, two symmetrically arranged vent grooves 89 are formed in the lower die 4, the top ends of the second tee joints 85 are communicated with the vent grooves 89 through hoses, the top ends of the vent grooves 89 are communicated with the bottom of the die 41, and control valves for controlling air to enter are arranged in the other two pipelines of the second tee joint 85.
In the embodiment of the invention, by arranging the mechanisms such as the second three-way joint 85, the first piston 86, the ejector rod 87 and the like, the first piston 86 is initially arranged at the connection position of the left end and the right end of the second three-way joint 85, the lower die 4 moves downwards under the extrusion of the upper die 5, the ejector rod 87 moves downwards along with the lower die 4, so that the first piston 86 is driven to move downwards in the second three-way joint 85, air enters the second three-way joint 85 from the two ends, when the upper die 5 and the lower die 4 are separated, the lower die 4 is sprung up under the action of the elasticity of a spring, the first piston 86 moves upwards at a higher speed under the driving of the ejector rod 87, the upper end of the first piston 86 forms air pressure and extrudes a control valve to be closed, and the air enters between a finished product and a die wall through a hose and an air vent 89, so that gaps are generated by air blowing, the bonding state is relieved, and the efficiency of the subsequent demoulding is improved.
Referring to fig. 2 and 9, the control valve includes a fixing plate 91 fixedly installed on an inner wall of the second three-way joint 85, a telescopic rod 92 is fixedly installed on one side of the fixing plate 91, a second piston 93 is fixedly installed at the telescopic end of the telescopic rod 92, a second spring 94 is sleeved on the telescopic rod 92, and two ends of the second spring 94 are fixedly connected to the fixing plate 91 and a side wall of the second piston 93 respectively.
In this embodiment of the present invention, by arranging the fixing plate 91, the telescopic rod 92, the second piston 93 and other mechanisms, the second piston 93 on the control valve is initially in an open state under the action of the tension of the second spring 94 in the process of moving downwards with the first piston 86, when the first piston 86 moves upwards in the second three-way joint 85 at a relatively fast speed, the air pressure generated by the first piston 86 instantaneously makes the two second pistons 93 close to the first piston 86 move against the tension of the second spring 94, so that the second pistons 93 seal the two ends of the second three-way joint 85, when the first piston 86 moves to the upper end pipeline of the second three-way joint 85, the compressed air between the second piston 93 and the first piston 86 is discharged to the outside from the air outlet 88, and the second piston 93 turns on the control valve again under the action of the tension of the second spring 94, so that the air is reciprocally promoted to flow from the top end of the second three-way joint 85 into the die.
Referring to fig. 8, a control mechanism 8 for controlling air flow is arranged in the lower die 4, the control mechanism 8 comprises a conical groove 81 arranged at the top of two ventilation grooves 89, a conical blocking block 82 is slidably arranged in the conical groove 81, and the blocking block 82 is connected with the inner wall of the conical groove 81 through an elastic rope 84;
the lower surface of the blocking block 82 is uniformly provided with a drainage groove 83, and the notch of the drainage groove 83 points to the horizontal direction.
In the embodiment of the application, by arranging the structures such as the conical groove 81 and the blocking block 82, when air is not sprayed out of the inside of the ventilation groove 89, the blocking block 82 is positioned in the conical groove 81, the upper surface of the blocking block 82 is flush with the bottom surface of the die 41, and the blocking block 82 can effectively prevent preformed materials from entering the conical groove 81 and entering the inside of the ventilation groove 89 in the thermoforming process; when the thermal forming process is finished and the workpiece needs to be removed, air rises from the ventilation grooves 89 and impacts the blocking blocks 82 to enable the blocking blocks 82 to move upwards, the blocking blocks 82 move upwards under the impact effect and expose gaps, and the rising air flows out horizontally and uniformly along the drainage grooves 83 and is distributed between the formed workpiece and the bottom surface of the die orifice 41, so that the formed workpiece and the bottom wall of the die orifice 41 are blocked by the air, the formed workpiece is separated from the bottom wall of the die orifice 41, and the demolding of the workpiece is accelerated; after the air no longer flows out, the blocking block 82 resets under the action of the elastic rope 84, and the blocking block continuously protects the ventilation groove 89, so that the ventilation groove 89 is prevented from being blocked by the formed workpiece due to thermal expansion.
Referring to fig. 6, the support plate 65 is provided in an elongated structure and has a width smaller than the diameter of the inner cavity 63.
In this embodiment, when the hot vapor initially enters the inner cavity 63, because the bonding between the movable plate 62 and the bottom wall of the first groove 61 cannot be spread to the upper side, when the movable plate 62 is sprung up under the action of the elastic force of the memory spring 64, the first groove 61 and the inner cavity 63 are conducted, the width of the supporting plate 65 is smaller than the diameter of the inner cavity 63, and the hot vapor can be discharged into the atmosphere from the upper end of the inner cavity 63, so that too much gas in the inner cavity 63 is prevented, and the movable plate 62 cannot be well retracted into the first groove 61.
Working principle:
the working personnel place the tubular product on the lower mould 4, afterwards, control the system to make the upper mould 5 move downwards, the lower mould 4 is internally provided with a serpentine groove structure, the tubular product is pressed by utilizing the top block 51 at the upper mould 5 to make the tubular product produce the serpentine shape, the movable plate 62 moves towards the inside of the first groove 61 after being extruded by the upper mould 5 when the upper mould 5 contacts the lower mould 4, the movable plate 62 extrudes the memory spring 64 to shrink, the finished product and the mould opening 41 are bonded and then always extrude the movable plate 62 to rest in the inside of the first groove 61, after a period of cooling, the upper mould 5 and the lower mould 4 are separated, the existing hot forming mould mostly uses metal materials, part of heat generated in the hot forming process is transferred into the inner cavity 63, but after cooling, the temperature is reduced, and the periphery of the inner cavity 63 is provided with a heat insulation coating, the transferred part of heat is insufficient to enable the memory spring 64 to stretch, the lower mould 4 is prepared by splicing the upper part and the lower part of the lower mould, the annular part of the annular cooling groove 72 is positioned at the contact surface of the upper part and the lower part, the annular part is prefabricated, and then the annular part of the upper part and the lower part is spliced to obtain the lower mould 4, and the annular cooling groove 72 in the lower mould 4 is opened in the process of the annular cooling groove 72; circulating water slowly enters the annular cooling groove 72 through the water inlet pipe 71 to cool the lower die 4 and enable the pipe to be formed, steam is generated after the circulating water absorbs heat, the steam flows out of the annular cooling groove 72 through the first three-way joint 73, part of the steam flows into the conical pipe 75 through the first three-way joint 73 under the action that the conical pipe 75 promotes gas flow, part of the steam generates air flow in the first three-way joint 73 along with water flow, part of the steam is isolated from water vapor by the gas-liquid separation film 74 in the first three-way joint 73, the top end of the conical pipe 75 is communicated with the two inner cavities 63, enough space is reserved for the steam to enter the inner cavities 63, part of the steam is accelerated into the inner cavities 63 by the conical pipe 75 according to the characteristics of the conical pipe 75, the memory spring 64 stretches under the heating of the hot steam to promote the movable plate 62 to pop up the first groove 61, the first piston 86 is initially positioned at the communication position of the left end and the right end of the second three-way joint 85, the lower die 4 moves downwards under the extrusion of the upper die 5, the ejector rod 87 moves downwards along with the lower die 4, so that the first piston 86 is driven to move downwards in the second three-way joint 85, air enters the second three-way joint 85 from the two ends, when the upper die 5 and the lower die 4 are separated, the lower die 4 is sprung up under the action of the elastic force of a spring, the first piston 86 moves upwards under the driving of the ejector rod 87 at a higher speed, the upper end of the first piston 86 forms air pressure and extrudes a control valve to be closed, air enters between a finished product and a die wall through a hose and an air vent 89, a gap is generated between the hose and the air vent, the second piston 93 on the control valve is in an open state under the action of the pull of the second spring 94 in the process of moving downwards with the first piston 86, when the first piston 86 moves upwards in the second three-way joint 85 at a higher speed, the air pressure generated by the first piston 86 instantaneously enables two second pistons 93 close to the first piston 86 to move against the tensile force of the second springs 94, so that the second pistons 93 can seal two ends of the second three-way joint 85, when the first piston 86 moves to a pipeline at the upper end of the second three-way joint 85, extruded air between the second pistons 93 and the first piston 86 is discharged to the outside from the air outlet 88, the second pistons 93 conduct the control valve again under the tensile force of the second springs 94, when air is not sprayed out from the inside of the ventilation groove 89, the blocking blocks 82 are positioned in the conical groove 81, the upper surfaces of the blocking blocks 82 are flush with the bottom surface of the die orifice 41, and the blocking blocks 82 can effectively prevent preformed materials from entering the conical groove 81 and entering the inside of the ventilation groove 89 in the thermoforming process; when the thermal forming process is finished and the workpiece needs to be removed, air rises from the ventilation grooves 89 and impacts the blocking blocks 82 to enable the blocking blocks 82 to move upwards, the blocking blocks 82 move upwards under the impact effect and expose gaps, and the rising air flows out horizontally and uniformly along the drainage grooves 83 and is distributed between the formed workpiece and the bottom surface of the die orifice 41, so that the formed workpiece and the bottom wall of the die orifice 41 are blocked by the air, the formed workpiece is separated from the bottom wall of the die orifice 41, and the demolding of the workpiece is accelerated; after the air no longer flows out, the blocking block 82 resets under the action of the elastic rope 84, and the blocking block continuously protects the ventilation groove 89, so that the ventilation groove 89 is prevented from being blocked by the formed workpiece due to thermal expansion.
The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;
secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;
finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (7)
1. The utility model provides a coiled pipe integrated into one piece device for boiler, includes mount (1), base (2), locates roof (3) of base (2) top, movable mounting lower mould (4) in base (2) upper end, fixed mounting in last mould (5) of roof (3) bottom, set up at die orifice (41) at lower mould (4) middle part, movable mounting ejector pad (51) in last mould (5) bottom, its characterized in that: the upper end of the lower die (4) is provided with a first groove (61), the interior of the lower die (4) is provided with an inner cavity (63), and the interiors of the first groove (61) and the inner cavity (63) are provided with a demoulding mechanism (6) for assisting demoulding;
the demolding mechanism (6) comprises a movable plate (62) movably mounted in the first groove (61), a plurality of memory springs (64) are fixedly connected to the bottom walls of the inner cavities (63), a supporting plate (65) is fixedly connected to the top ends of the memory springs (64), a connecting rod (66) is fixedly mounted at the upper ends of the supporting plates (65), and the top ends of the connecting rods (66) penetrate through the top wall of the inner cavities (63) and are fixedly mounted at the bottoms of the movable plate (62);
an auxiliary heating mechanism (7) for promoting the extension of the memory spring (64) is fixedly arranged on the side wall of the lower die (4).
2. A serpentine tube integrated device for a boiler according to claim 1, wherein: the auxiliary heating mechanism (7) comprises a water inlet pipe (71) fixedly mounted on one side of a lower die (4), an annular cooling groove (72) is formed in the lower die (4), a first three-way joint (73) is arranged on the other side of the lower die (4), a gas-liquid separation membrane (74) is fixedly mounted in the upper pipe of the first three-way joint (73), a conical pipe (75) is fixedly mounted on the side wall of the lower die (4), the top end of the first three-way joint (73) is fixedly connected to the bottom end of the conical pipe (75), an air outlet pipe (76) is fixedly connected to the top end of the conical pipe (75), an air return groove (77) is formed in the lower die (4), one end of the air outlet pipe (76) is communicated with one end of the air return groove (77), the other end of the air return groove (77) is communicated with two inner cavities (63), and a channel (78) is formed between every two inner cavities (63) and used for mutual communication.
3. A serpentine tube integrated device for a boiler according to claim 1, wherein: the bottom fixed mounting of base (2) has second three way connection (85) that two symmetries set up, two the top of second three way connection (85) all runs through the lateral wall of base (2) and extends to its upper end, the inside of second three way connection (85) is equipped with first piston (86), the top fixed mounting of first piston (86) has ejector pin (87), the top fixed mounting of ejector pin (87) is in the bottom of lower mould (4), gas outlet (88) have been seted up to the bottom of second three way connection (85), ventilation slot (89) that two symmetries set up have been seted up to the inside of lower mould (4), through the hose intercommunication between the top of second three way connection (85) and ventilation slot (89), and the top of ventilation slot (89) and the bottom intercommunication of die orifice (41), all be equipped with the control valve that is used for controlling the air to get into in two other pipelines of second three way connection (85).
4. A serpentine tube integrated device for a boiler according to claim 3, wherein: the control valve comprises a fixed plate (91) fixedly arranged on the inner wall of a second three-way joint (85), one side of the fixed plate (91) is fixedly provided with a telescopic rod (92), the telescopic tail end of the telescopic rod (92) is fixedly provided with a second piston (93), a second spring (94) is sleeved on the telescopic rod (92), and two ends of the second spring (94) are fixedly connected to the side walls of the fixed plate (91) and the second piston (93) respectively.
5. A serpentine tube integrated device for a boiler according to claim 3, wherein: the inside of lower mould (4) is equipped with control mechanism (8) that are used for controlling the air flow, control mechanism (8) are including seting up at the toper groove (81) at two ventilation slots (89) tops, toper groove (81) inside slidable mounting has conical separation piece (82), separation piece (82) link to each other with the inner wall of toper groove (81) through elastic cord (84).
6. A serpentine tube integrated device for a boiler according to claim 5, wherein: drainage grooves (83) are uniformly formed in the lower surface of the blocking block (82), and the notch of each drainage groove (83) points to the horizontal direction.
7. A serpentine tube integrated device for a boiler according to claim 1, wherein: the supporting plate (65) is of a strip-shaped structure, and the width of the supporting plate is smaller than the diameter of the inner cavity (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310243998.7A CN116371987A (en) | 2023-03-14 | 2023-03-14 | Integral forming device for coiled pipe for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310243998.7A CN116371987A (en) | 2023-03-14 | 2023-03-14 | Integral forming device for coiled pipe for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116371987A true CN116371987A (en) | 2023-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310243998.7A Pending CN116371987A (en) | 2023-03-14 | 2023-03-14 | Integral forming device for coiled pipe for boiler |
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| Country | Link |
|---|---|
| CN (1) | CN116371987A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114939979A (en) * | 2022-04-27 | 2022-08-26 | 单喜贺 | Thermal forming die |
-
2023
- 2023-03-14 CN CN202310243998.7A patent/CN116371987A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114939979A (en) * | 2022-04-27 | 2022-08-26 | 单喜贺 | Thermal forming die |
| CN114939979B (en) * | 2022-04-27 | 2024-03-15 | 东莞市瑞森模具塑胶有限公司 | Thermoforming mold |
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