CN216965966U - Elbow pipe integrated into one piece apparatus for producing - Google Patents

Elbow pipe integrated into one piece apparatus for producing Download PDF

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Publication number
CN216965966U
CN216965966U CN202220138494.XU CN202220138494U CN216965966U CN 216965966 U CN216965966 U CN 216965966U CN 202220138494 U CN202220138494 U CN 202220138494U CN 216965966 U CN216965966 U CN 216965966U
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CN
China
Prior art keywords
elbow pipe
pipe
pressure cylinder
die
elbow
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Expired - Fee Related
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CN202220138494.XU
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Chinese (zh)
Inventor
项海敏
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Jiangsu Boba Electric Appliance Co ltd
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Jiangsu Boba Electric Appliance Co ltd
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Priority to CN202220138494.XU priority Critical patent/CN216965966U/en
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Publication of CN216965966U publication Critical patent/CN216965966U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an elbow pipe integrated forming production device which comprises a pipe blank bending mechanism and an elbow pipe water expansion forming mechanism, wherein the pipe blank bending mechanism is used for primarily bending a straight round pipe, the elbow pipe water expansion forming mechanism comprises a workbench and a water expansion die, the water expansion die comprises a lower die arranged on the workbench, a main pressure cylinder is arranged above the lower die, an upper die matched with the lower die is arranged on the telescopic end of the main pressure cylinder, two ends of the water expansion die are respectively provided with a lateral pressure cylinder, the telescopic end of the lateral pressure cylinder is hermetically connected in a pipe blank inner cavity in an elbow pipe forming cavity when extending out, the telescopic end of the lateral pressure cylinder is provided with an expansion punch communicated with a water pressure injection cylinder, and the telescopic end of the other lateral pressure cylinder is provided with a sealing plug assembly. The utility model can directly process straight round pipes to form integral elbow pipes, only needs to process the elbow pipes by water expansion during production, and can manufacture a large number of elbows by one-time water expansion, thereby reducing energy waste and improving production efficiency.

Description

Elbow pipe integrated into one piece apparatus for producing
Technical Field
The utility model relates to the technical field of metal pipe fitting processing, in particular to an integral forming production device for an elbow pipe.
Background
In pipeline systems, elbows are usually installed at the corners of the pipeline and connected to pipes to form the pipeline, so as to change the direction of the pipeline. The elbow preparation of current complicated shape is earlier through stamping forming manufacturing upper and lower two parts iron sheet, is made through the welding by these two independent iron sheets again, leaves the welding line that influences the impression and through welded elbow surface unevenness on the elbow surface, and the solder joint that produces when its surface can leave the welding needs to increase follow-up burnishing and polishing process, and the produced dust of burnishing and polishing also can cause certain influence to the mill's environment, and the manpower consumption is great, and technology is comparatively loaded down with trivial details. In order to enable elbow finished products to be fuller and smoother and reduce subsequent polishing processing, some manufacturers adopt a water expansion method to process elbows, but production equipment can only process one elbow at each time, a pressure cylinder needs to be repeatedly and frequently lifted to be placed into a next bent pipe to be processed, the efficiency is low, energy consumption required by frequent pressurization and water expansion is overlarge, energy waste is caused, the production cost is also high, and the requirement of large-scale production cannot be met.
Disclosure of Invention
The utility model aims to: the utility model provides an elbow pipe integrated into one piece apparatus for producing can process the alignment pipe, makes its elbow pipe that becomes whole section, only need carry out the processing that expands with water to the elbow pipe during production, follow-up cutting again can, the interior outer wall of elbow is more even plump, and a large amount of elbows just can be made to water expansion, and it is extravagant to reduce the energy, improves production efficiency.
In order to realize the purpose, the technical scheme adopted by the utility model is as follows: an integral forming production device of an elbow pipe comprises a pipe blank bending mechanism for primarily bending a straight round pipe and a bent pipe water expansion forming mechanism, the bent pipe water expansion forming mechanism comprises a workbench and a water expansion die, the water expansion die comprises a lower die arranged on the workbench, a main pressure cylinder is arranged above the lower die, an upper die matched with the lower die is arranged on the telescopic end of the main pressure cylinder, the upper die is provided with an upper half forming cavity, the lower die is provided with a lower half forming cavity, the lower half forming cavity is matched with the upper half forming cavity to form a elbow pipe forming cavity, the water swelling mould both ends are equipped with the side respectively and press the jar, sealing connection when the flexible end that the jar was pressed to the side stretches out is in the pipe intracavity in the elbow pipe becomes the die cavity, one side the flexible end that the jar was pressed to the side is served and is equipped with the bloated drift that pours into the jar intercommunication with water pressure, the opposite side the flexible end that the jar was pressed to the side is equipped with sealed plug subassembly.
In a further improvement scheme of the utility model, the upper half forming cavity and the lower half forming cavity are wavy arc-shaped grooves which are oppositely arranged, and the two arc-shaped grooves are pressed and butted to form a wavy elbow pipe forming cavity.
According to a further improvement scheme of the utility model, the sealing plug assembly comprises a plug matched with the inner diameter of the elbow pipe, the diameter of one end, close to the lower die, of the plug is gradually reduced, and a sealing ring sleeved on the plug is arranged on the surface of the telescopic end of the side pressure cylinder.
According to a further improvement scheme of the utility model, a plurality of elastic annular reinforcing ribs are arranged on the sealing ring, and the sealing ring is in close contact with the water expansion mould when the plug is connected in the inner cavity of the tube blank in a sealing manner.
According to a further improved scheme of the utility model, the sealing ring is made of tetrafluoro rubber, the number of the reinforcing ribs is two, and the thickness of each reinforcing rib is 0.05-0.1 mm.
According to a further improvement of the utility model, a liquid recovery groove is arranged on the workbench and around the water expansion mould.
In a further improvement scheme of the utility model, a liquid outlet is arranged at the bottom of the liquid recovery tank, a filter screen is arranged in the liquid outlet, a flow guide pipe is communicated below the liquid outlet, the hydraulic injection cylinder is arranged at one side of the workbench, and the flow guide pipe is connected with the hydraulic injection cylinder and provided with a one-way valve.
According to a further improvement scheme of the utility model, the elbow pipe forming cavity comprises an arc section and fixed sections respectively positioned at two ends of the arc section, the arc section comprises 12 continuous arc periods, and each arc period comprises a forward 90-degree bent arc cavity and a reverse 90-degree bent arc cavity.
The utility model has the beneficial effects that:
firstly, the straight round pipe can be directly processed to be changed into the whole section of elbow pipe, the elbow pipe is subjected to water expansion processing during production and then cut, the inner wall and the outer wall of the elbow are more uniform and full, a large number of elbows can be manufactured by one-time water expansion, the precision water expansion is realized, the environment is protected, the production efficiency is high, the energy is saved, the consumption is reduced, and the energy waste is reduced.
Compared with the traditional metal casting process, the elbow pipe wall thickness prepared by the production process is small, the pipe wall thickness can be directly reduced to be below the pipe wall thickness which can not be achieved by the traditional metal casting process in the actual production, and the production cost is greatly reduced.
Thirdly, the elbow pipe can be manufactured by one-time forming after the straight pipe is bent, the pipe fitting in the forming die is expanded and formed, and the pipe fitting is divided according to the length of the needed elbow, so that the condition that only a single elbow can be processed by a traditional production device at one time is avoided, the production efficiency is effectively improved, the production period and the manufacturing cost are reduced, and the yield is greatly improved.
Fourthly, the utility model adopts the water expansion forming process to produce the elbow, thereby improving the appearance quality of the finished surface of the product, having good surface smoothness and high processing speed, improving the production efficiency, reducing the manufacturing cost of the elbow, and the formed elbow has stable rigidity, firm structure, no gap, no internal stress, no sand hole and no internal injury.
Fifthly, the elbow pipe forming cavity comprises 12 continuous arc periods, and each arc period comprises an arc segment bent by 90 degrees in the forward direction and an arc segment bent by 90 degrees in the reverse direction. The pipe blank which is preliminarily bent but has a flat pipe body is placed into the elbow pipe forming cavity, the pipe blank is expanded to be attached to the inner wall of the forming cavity through water expansion so as to achieve the shape specified in production, and the continuously bent elbow pipe can be cut according to the requirement of an order to obtain various elbows bent at 45 degrees or 90 degrees and the like, so that the application range of the elbow pipe is expanded.
And sixthly, the sealing ring is arranged, the sealing ring is provided with a plurality of elastic annular reinforcing ribs, when the plug is connected in the inner cavity of the tube blank in a sealing mode, the sealing ring is in close contact with the water expansion die, and the reinforcing ribs can further improve the sealing effect. When water expands, the tube blank can be effectively sealed, high-pressure leakage is reduced, and production safety is guaranteed.
According to the utility model, the liquid outlet is arranged at the bottom of the liquid recovery tank, the filter screen is arranged in the liquid outlet, the lower part of the liquid outlet is communicated with the flow guide pipe, the hydraulic injection cylinder is arranged at one side of the workbench, and the flow guide pipe is connected with the hydraulic injection cylinder and provided with the one-way valve. The emulsion used for water expansion can be recycled and reused after being filtered, so that the waste is reduced, the production cost is reduced, and the ecological environment is protected.
Description of the drawings:
FIG. 1 is a schematic top view of a cross-section of the structure of the present invention.
Fig. 2 is a schematic front view of the structure of the present invention.
Fig. 3 is a schematic bottom sectional view of the structure of the present invention.
Figure 4 is an enlarged partial side view of the sealing plug assembly of the present invention.
Fig. 5 is a side view, partially enlarged and schematically illustrating the water expansion mold of the present invention.
In the figure, 1-a pipe blank bending mechanism, 2-a bent pipe water expansion forming mechanism, 3-a workbench, 4-a water expansion die, 5-a lower die, 6-a main pressure cylinder, 7-an upper die, 8-a side pressure cylinder, 9-a water pressure injection cylinder, 10-an expansion punch, 11-a sealing plug component, 12-an upper half forming cavity, 13-a lower half forming cavity, 15-a plug, 16-a sealing ring, 17-a reinforcing rib, 18-a liquid recovery tank, 20-a liquid outlet, 21-a filter screen, 22-a flow guide pipe, 23-a one-way valve, 24-an arc section and 25-a fixed section.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
With reference to fig. 1 to 5, an elbow pipe integrated forming production device comprises a pipe bending mechanism 1 and an elbow water-swelling forming mechanism 2 for primarily bending a straight round pipe, wherein the elbow water-swelling forming mechanism 2 comprises a workbench 3 and a water-swelling mold 4, the water-swelling mold 4 comprises a lower mold 5 arranged on the workbench 3, a main pressure cylinder 6 is arranged above the lower mold 5, an upper mold 7 matched with the lower mold 5 is arranged at the telescopic end of the main pressure cylinder 6, an upper half forming cavity 12 is arranged on the upper mold 7, a lower half forming cavity 13 is arranged on the lower mold 5, the lower half forming cavity 13 is matched with the upper half forming cavity 12 to form an elbow pipe forming cavity, two ends of the water-swelling mold 4 are respectively provided with lateral pressure cylinders 8, and when the telescopic end of the lateral pressure cylinder 8 extends, the telescopic end of the lateral pressure cylinder is hermetically connected in the inner cavity of the pipe in the elbow pipe forming cavity, an expansion punch 10 communicated with the water pressure injection cylinder 9 is arranged at the telescopic end of the side pressure cylinder 8 at one side, and a sealing plug assembly 11 is arranged at the telescopic end of the side pressure cylinder 8 at the other side. The tube blank bending mechanism 1 is any equipment capable of pressing a straight round tube into a wavy bent tube in the prior art.
The upper half forming cavity 12 and the lower half forming cavity 13 are wavy arc-shaped grooves which are oppositely arranged, and the two arc-shaped grooves are in press fit butt joint to form a wavy elbow pipe forming cavity.
The sealing plug assembly 11 comprises a plug 15 matched with the inner diameter of the elbow pipe, the diameter of one end, close to the lower die 5, of the plug 15 is gradually reduced, and a sealing ring 16 sleeved on the plug 15 is arranged on the surface of the telescopic end of the side pressure cylinder 8.
A plurality of elastic annular reinforcing ribs 17 are arranged on the sealing ring 16, and when the plug 15 is connected in the inner cavity of the tube blank in a sealing mode, the sealing ring 16 is in close contact with the water expansion mould 4.
The material of sealing washer 16 is tetrafluoro rubber, strengthening rib 17 is twice, strengthening rib 17 thickness is 0.05-0.1 mm. Further enhancing the sealing effect.
And a liquid recovery tank is arranged on the workbench and around the water expansion mould. Liquid outlet 20 is equipped with at the 18 tank bottoms of liquid recovery tank, be equipped with filter screen 21 in the liquid outlet 20, liquid outlet 20 below intercommunication has honeycomb duct 22, water pressure injection jar 9 sets up 3 one side of workstation, honeycomb duct 22 with water pressure injection jar 9 is connected and is equipped with check valve 23 on it. The liquid used for water swelling is preferably an emulsion.
Elbow pipe shaping chamber includes circular arc section 24 and is located respectively the fixed segment 25 at 24 both ends of circular arc section, circular arc section 24 includes 12 continuous circular arc periods, every the circular arc period includes the circular arc chamber of forward 90 degrees bending and the circular arc chamber of reverse 90 degrees bending. Furthermore, the arc period can be increased or decreased according to requirements.
The working principle of the elbow pipe integrated forming production device provided by the utility model is as follows: when in processing, firstly, a straight round pipe is put into the pipe blank bending mechanism 1 to be bent, a bent pipe which is slightly flat after being bent is put into the lower die 5, the main pressure cylinder 6 is started, the telescopic end of the main pressure cylinder 6 drives the upper die 7 to be pressed downwards, the upper die 7 and the lower die 5 are matched to form a bent pipe forming cavity, the bent pipe is fixed in the bent pipe forming cavity, the side pressure cylinders 8 on two sides are started, the telescopic ends of the side pressure cylinders 8 extend out to respectively drive the expansion punch 10 and the sealing plug assembly 11 to enter the bent pipe cavity and seal the bent pipe cavity, then the water pressure injection cylinder 9 starts to work and pressurize to carry out water expansion on the inner wall of the bent pipe, the bent pipe is expanded and becomes full and smooth according to the limitation of the bent pipe forming cavity, the water pressure injection cylinder 9 reduces the pressure after the expansion is finished, the side pressure cylinders 8 on two sides retract, the main pressure cylinder 6 is lifted, the bent pipe is taken out, the water expansion emulsion liquid is recovered through the liquid recovery tank 18, the one-way valve 23 is started, the emulsion is filtered by the filter screen 21 and then enters the hydraulic injection cylinder again for reuse. The elbow pipe that water inflation was accomplished can carry out the cutting of different specifications to it as required, and the elbow angle that produces is abundant, and application scope is big, and one-time shipment is in large quantities, and production efficiency is high.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.

Claims (8)

1. The utility model provides an elbow pipe integrated into one piece apparatus for producing, is including being used for the pipe bending machine of the preliminary bending of straight pipe mechanism (1) and return bend water swelling forming mechanism (2), its characterized in that: the elbow water expansion forming mechanism (2) comprises a workbench (3) and a water expansion die (4), the water expansion die (4) comprises a lower die (5) arranged on the workbench (3), a main pressure cylinder (6) is arranged above the lower die (5), an upper die (7) matched with the lower die (5) is arranged on the telescopic end of the main pressure cylinder (6), an upper half forming cavity (12) is arranged on the upper die (7), a lower half forming cavity (13) is arranged on the lower die (5), the lower half forming cavity (13) is matched with the upper half forming cavity (12) to form an elbow pipe forming cavity, two ends of the water expansion die (4) are respectively provided with a side pressure cylinder (8), when the telescopic end of the side pressure cylinder (8) extends out, the side pressure cylinder (8) is hermetically connected in a pipe blank inner cavity in the elbow pipe forming cavity, one side of the telescopic end of the side pressure cylinder (8) is provided with an expansion punch (10) communicated with a water pressure injection cylinder (9), and a sealing plug component (11) is arranged at the telescopic end of the side pressure cylinder (8) at the other side.
2. The elbow pipe integral molding production device according to claim 1, wherein: the upper half forming cavity (12) and the lower half forming cavity (13) are wavy arc-shaped grooves which are oppositely arranged, and the two arc-shaped grooves are in press fit and butt joint to form a wavy elbow pipe forming cavity.
3. The elbow pipe integral molding production device according to claim 1, wherein: sealed end plug subassembly (11) include end plug (15) with elbow pipe internal diameter looks adaptation, end plug (15) are close to the one end diameter of bed die (5) and are dwindled gradually, the flexible end surface of side pressure jar (8) is equipped with the cover and establishes sealing washer (16) on end plug (15).
4. The elbow pipe integrally-molding production device according to claim 3, wherein: a plurality of elastic annular reinforcing ribs (17) are arranged on the sealing ring (16), and when the plug (15) is connected in the inner cavity of the tube blank in a sealing mode, the sealing ring (16) is in close contact with the water expansion die (4).
5. The elbow pipe integral molding production device according to claim 4, wherein: the sealing ring (16) is made of tetrafluoro rubber, the reinforcing ribs (17) are two, and the thickness of each reinforcing rib (17) is 0.05-0.1 mm.
6. The elbow pipe integral molding production device according to claim 1, wherein: and a liquid recovery groove (18) is arranged on the workbench (3) and around the water expansion mould (4).
7. The elbow pipe integral molding production device according to claim 6, wherein: liquid recovery tank (18) tank bottom is equipped with liquid outlet (20), be equipped with filter screen (21) in liquid outlet (20), liquid outlet (20) below intercommunication has honeycomb duct (22), water pressure injection jar (9) set up workstation (3) one side, honeycomb duct (22) with water pressure injection jar (9) are connected and are equipped with check valve (23) on it.
8. The elbow pipe integral molding production device according to claim 2, wherein: elbow pipe shaping chamber includes circular arc section (24) and is located respectively fixed segment (25) at circular arc section (24) both ends, circular arc section (24) include 12 continuous circular arc periods, every the circular arc period includes the circular arc chamber of forward 90 degrees bendings and the circular arc chamber of reverse 90 degrees bendings.
CN202220138494.XU 2022-01-19 2022-01-19 Elbow pipe integrated into one piece apparatus for producing Expired - Fee Related CN216965966U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220138494.XU CN216965966U (en) 2022-01-19 2022-01-19 Elbow pipe integrated into one piece apparatus for producing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220138494.XU CN216965966U (en) 2022-01-19 2022-01-19 Elbow pipe integrated into one piece apparatus for producing

Publications (1)

Publication Number Publication Date
CN216965966U true CN216965966U (en) 2022-07-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114346047A (en) * 2022-01-19 2022-04-15 江苏博巴电器有限公司 Elbow pipe integrated forming production process and production device thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114346047A (en) * 2022-01-19 2022-04-15 江苏博巴电器有限公司 Elbow pipe integrated forming production process and production device thereof

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Granted publication date: 20220715

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