Hydraulic forming machine for natural gas pipeline elbow

Abstract

The utility model relates to natural gas pipeline production and processing technical field discloses a kind of natural gas pipeline elbow hydraulic forming machine, comprising: rack, the cavity of rack is movably connected with carousel, the top of carousel is provided with lower mould, carousel is discoid;Support, support is fixedly connected in the rear wall top of rack, the bottom of electric cylinder is fixedly connected with upper mould;Automatic structure, automatic structure includes: base plate, trigger block, give way slot and collection groove, base plate is fixedly connected in the cavity of rack, trigger block is fixedly connected in the top of base plate, give way slot is opened in the bottom of carousel, collection groove is opened in the top of carousel, automatic structure can realize automatically and unload the pipeline elbow of pressing molding from device, only need worker to place elbow blank in lower mould top to carry out pressing molding and collect elbow discharged from collection pipe during working process, to make the present scheme not only reduce the working pressure of worker, still can indirectly promote production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of natural gas pipeline production and processing, specifically, it relates to a hydraulic forming machine for natural gas pipeline elbows. Background Technology

[0002] Natural gas pipelines are an important infrastructure for transporting natural gas and are widely used in energy transportation and urban gas supply. Natural gas pipeline elbows are used to connect pipelines that need to turn.

[0003] Natural gas pipeline elbows are primarily manufactured using hydraulic forming. The traditional manufacturing process involves workers holding the pipe and applying hydraulic pressure, then manually removing the formed pipe from the mold, repeating this process. While this method can form the pipe elbow, the manual placement and removal of the pipe by workers reduces work efficiency and increases their workload.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A hydraulic forming machine for natural gas pipeline elbows, comprising:

[0007] The frame is circular in shape, with multiple legs installed at the bottom. A turntable is movably connected inside the frame cavity, and a lower mold is installed on the top of the turntable. The turntable is disc-shaped.

[0008] The bracket is fixedly connected to the top of the rear wall of the machine frame. An electric cylinder is fixedly connected to the bottom of the bracket. The electric cylinder is located directly above the lower mold. The bottom of the electric cylinder is fixedly connected to the upper mold.

[0009] The automatic structure is set on the wall of the frame to automatically unload the formed pipe elbow. The automatic structure includes: a base, a trigger block, a clearance groove and a receiving groove. The base is fixedly connected to the cavity of the frame, the trigger block is fixedly connected to the top of the base, the clearance groove is opened at the bottom of the turntable, the receiving groove is opened at the top of the turntable, and the lower mold is set in the receiving groove.

[0010] In a preferred embodiment of the present invention, a motor for driving the turntable to rotate is installed at the bottom of the chassis. The trigger block is a right-angled trapezoidal block with a sloping top. The trigger block is located in the relief groove, which is an annular groove. The receiving groove is a rectangular opening. Four identical receiving grooves are evenly opened on the top of the turntable. The same lower mold is set in each receiving groove. All receiving grooves can communicate with the relief groove.

[0011] In a preferred embodiment of the present invention, the automatic structure further includes a fixed shaft, a sleeve, and a trigger plate. The fixed shaft is fixedly connected in each receiving groove, the sleeve is fixedly connected to the bottom of the front wall of each receiving groove, and the trigger plate is fixedly connected to the bottom of each lower mold.

[0012] In a preferred embodiment of this utility model, the fixed shaft is cylindrical, the sleeve is tubular, the sleeve can be sleeved with the corresponding fixed shaft, the trigger plate is arc-shaped, the trigger plate is located in the middle of the bottom of the receiving groove, and the bottom of the trigger plate can contact the inclined surface of the trigger block.

[0013] In a preferred embodiment of this utility model, the automatic structure further includes an anti-detachment ring, a limiting block, and a collection tube. The anti-detachment ring is fixedly connected to the top of the frame, the limiting block is fixedly connected to the center of the top of the turntable, and the collection tube is fixedly connected to the top of the frame.

[0014] In a preferred embodiment of this utility model, the anti-detachment ring is a circular tube with an opening on its arc surface, the limiting block is a rectangular block with its four sides aligned with the four lower molds, the collecting tube is a U-shaped pipe located at the opening of the anti-detachment ring, the top opening of the collecting tube is a sloping surface, the position of the collecting tube is aligned with the position of the trigger block, and the top of the collecting tube is flush with the top of the turntable.

[0015] In a preferred embodiment of this utility model, an alignment frame is fixedly connected to the side wall of the anti-detachment ring. The alignment frame is a rectangular frame with a groove at the top. The top groove of the alignment frame is flush with the slot of the lower mold, and the rear wall of the alignment frame is flush with the front wall of the lower mold.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. By setting up an automatic structure, the pressed pipe elbows can be automatically unloaded from the device. During the operation, workers only need to place the elbow blanks on the top of the lower mold for pressing and collecting the elbows discharged from the collection pipe. This solution not only reduces the workload of workers, but also indirectly improves production efficiency.

[0018] 2. By setting an alignment frame, the blank can be placed on top of the lower mold, preventing misalignment between the blank and the lower mold that could lead to pressing failure, thus effectively improving the convenience of pressing elbows.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is a disassembly diagram of the turntable and chassis of this utility model;

[0023] Figure 3 This is a perspective view of the turntable of this utility model.

[0024] Figure 4 This is an exploded view of the turntable wall structure of this utility model;

[0025] Figure 5 This is a diagram showing the connection between the lower mold and the upper mold of this utility model.

[0026] In the diagram: 20. Frame; 21. Support; 22. Upper mold; 23. Turntable; 24. Lower mold; 30. Chassis; 31. Trigger block; 32. Anti-disengagement ring; 33. Relief groove; 34. Collection groove; 35. Shaft fixing; 36. Limiting block; 37. Sleeve; 38. Trigger plate; 39. Collection tube; 40. Alignment frame. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a natural gas pipeline elbow hydraulic forming machine includes: a frame 20, which is annular in shape, with multiple support legs installed at the bottom of the frame 20, a turntable 23 movably connected inside the cavity of the frame 20, and a lower mold 24 provided on the top of the turntable 23, which is disc-shaped.

[0029] The bracket 21 is fixedly connected to the top of the rear wall of the frame 20. An electric cylinder is fixedly connected to the bottom of the bracket 21. The electric cylinder is located directly above the lower mold 24. An upper mold 22 is fixedly connected to the bottom of the electric cylinder. The electric cylinder is electrically connected to the power supply. The lower mold 24 and the upper mold 22 are conventional elbow molds. This is existing technology, so it will not be described in detail here.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the automatic structure is installed on the wall of the frame 20 to automatically unload the formed pipe elbow. The automatic structure includes: a base 30, a trigger block 31, a clearance groove 33, and a receiving groove 34. The base 30 is fixedly connected to the cavity of the frame 20, the trigger block 31 is fixedly connected to the top of the base 30, the clearance groove 33 is opened at the bottom of the turntable 23, the receiving groove 34 is opened at the top of the turntable 23, and the lower mold 24 is set in the receiving groove 34.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a motor for driving the turntable 23 to rotate is installed at the bottom of the chassis 30. The trigger block 31 is a right-angled trapezoidal block with a sloping top. The trigger block 31 is located in the relief groove 33, which is an annular groove. The receiving groove 34 is a rectangular slot. Four identical receiving grooves 34 are evenly opened on the top of the turntable 23. Each receiving groove 34 is equipped with an identical lower mold 24. All receiving grooves 34 can communicate with the relief groove 33. The automatic structure also includes a fixed shaft 35, a sleeve 37, and a trigger plate 38. The fixed shaft 35 is fixedly connected to each receiving groove 34. The sleeve 37 is fixedly connected to the bottom of the front wall of each receiving groove 34. The trigger plate 38 is fixedly connected to the bottom of each lower mold 24. The fixed shaft 35 is cylindrical, and the sleeve 37 is tubular. The sleeve 37 can be sleeved with the corresponding fixed shaft 35. Plate 38 is an arc-shaped plate. The trigger plate 38 is located at the bottom middle section of the collecting groove 34. The bottom of the trigger plate 38 can contact the inclined surface of the trigger block 31. The automatic structure also includes an anti-detachment ring 32, a limiting block 36, and a collecting tube 39. The anti-detachment ring 32 is fixedly connected to the top of the frame 20. The limiting block 36 is fixedly connected to the top center of the turntable 23. The collecting tube 39 is fixedly connected to the top of the frame 20. The anti-detachment ring 32 is a circular tube with an opening on its arc surface. The limiting block 36 is a rectangular block with its four sides aligned with the four lower molds 24. The collecting tube 39 is a U-shaped tube located at the opening of the anti-detachment ring 32. The top opening of the collecting tube 39 is an inclined surface. The position of the collecting tube 39 is aligned with the position of the trigger block 31. The top of the collecting tube 39 is flush with the top of the turntable 23.

[0032] In practical use, first ensure the power is on. Then, place the required hydraulically formed elbow blank in the top groove of the lower mold 24 directly in front. Turn on the power; the upper mold 22 will be pressed downwards by the electric cylinder. When the bottom groove of the upper mold 22 aligns with the top groove of the lower mold 24, the blank on top of the lower mold 24 will be formed. The upper mold 22 will then retract, completing the forming process. The motor at the bottom of the chassis 30 will drive the turntable 23 to rotate. The lower mold 24 on top of the turntable 23 will rotate synchronously with the turntable 23. Meanwhile, another empty lower mold 24 will rotate with the turntable 23 to directly below the upper mold 22. Then, place the blank on top and press it in the same way. The blank formed on top of the lower mold 24 will... The mold 24 rotates synchronously. When the lower mold 24 drives the trigger plate 38 and the top inclined surface of the trigger block 31 to contact, the top inclined surface of the trigger block 31 gradually pushes the trigger plate 38 upward as the turntable 23 gradually rotates. The lower mold 24 will flip around the fixed shaft 35 as the center when the trigger plate 38 is pushed. At this time, the elbow formed on the top of the lower mold 24 will slide from the top of the lower mold 24 to the top of the collection tube 39. Then, as the top inclined surface of the collection tube 39 moves, after the trigger plate 38 passes above the trigger block 31, the lower mold 24 will return to its original flat position. After the elbow is formed on the top of the lower mold 24, the front end of the elbow will contact the inner arc surface of the anti-detachment ring 32 as the lower mold 24 rotates. There is a gap between the inner arc surface of the anti-detachment ring 32 and the front end of the lower mold 24.

[0033] In summary, by setting up an automatic structure, the pressed pipe elbows can be automatically unloaded from the device. During the operation, workers only need to place the elbow blanks on the top of the lower mold 24 for pressing and collecting the elbows discharged from the collection pipe 39. This solution not only reduces the workload of workers but also indirectly improves production efficiency.

[0034] like Figure 1 As shown, an alignment frame 40 is fixedly connected to the side wall of the anti-detachment ring 32. The alignment frame 40 is a rectangular frame with a groove at the top. The top groove of the alignment frame 40 is flush with the slot of the lower mold 24, and the rear wall of the alignment frame 40 is flush with the front wall of the lower mold 24.

[0035] In practical use, when preforming the elbow blank, it can be placed in the top groove of the alignment frame 40. When the lower mold 24 and the top groove of the alignment frame 40 overlap, the blank can be moved to the top of the lower mold 24 for forming.

[0036] In summary, by setting the alignment frame 40, the blank can be placed on top of the lower mold 24, preventing misalignment between the blank and the lower mold 24 that could lead to pressing failure, thereby effectively improving the convenience of pressing elbows.

[0037] Working principle: After confirming power is connected, place the required hydraulically formed elbow blank into the top groove of the lower mold 24 directly in front. Then, turn on the power. The upper mold 22 will be pressed downward by the electric cylinder when the power is turned on. When the bottom groove of the upper mold 22 and the top groove of the lower mold 24 overlap, the blank on the top of the lower mold 24 will be formed. Then the upper mold 22 will retract, and the forming is completed. The motor at the bottom of the chassis 30 will drive the turntable 23 to rotate. At this time, the lower mold 24 on the top of the turntable 23 will rotate synchronously with the rotation of the turntable 23. Meanwhile, the other empty lower mold 24 will rotate with the turntable 23 to be directly below the upper mold 22. Then, the blank is placed on it. The same pressing and molding process is then performed. The blank formed at the top of the lower mold 24 will rotate synchronously with the rotation of the lower mold 24. Then, when the lower mold 24 drives the trigger plate 38 and the top inclined surface of the trigger block 31 to contact, the top inclined surface of the trigger block 31 will gradually push the trigger plate 38 upward as the turntable 23 gradually rotates. The lower mold 24 will flip around the fixed shaft 35 as the center when the trigger plate 38 is pushed. At this time, the elbow formed at the top of the lower mold 24 will slide from the top of the lower mold 24 to the top of the collection tube 39. Then, as the top inclined surface of the collection tube 39 moves, after the trigger plate 38 passes above the trigger block 31, the lower mold 24 will return to its original flat position.

[0038] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A hydraulic forming machine for natural gas pipeline elbows, characterized in that, include: The frame (20) is circular in shape. Multiple support legs are installed at the bottom of the frame (20). A turntable (23) is movably connected inside the cavity of the frame (20). A lower mold (24) is provided on the top of the turntable (23). The turntable (23) is disc-shaped. The bracket (21) is fixedly connected to the top of the rear wall of the frame (20). An electric cylinder is fixedly connected to the bottom of the bracket (21). The electric cylinder is located directly above the lower mold (24). The bottom of the electric cylinder is fixedly connected to the upper mold (22). An automatic structure is set on the wall of the frame (20) to automatically unload the formed pipe elbow. The automatic structure includes: a base (30), a trigger block (31), a clearance groove (33), and a receiving groove (34). The base (30) is fixedly connected to the cavity of the frame (20), the trigger block (31) is fixedly connected to the top of the base (30), the clearance groove (33) is opened at the bottom of the turntable (23), the receiving groove (34) is opened at the top of the turntable (23), and the lower mold (24) is set in the receiving groove (34).

2. The hydraulic forming machine for natural gas pipeline elbows according to claim 1, characterized in that, The bottom of the chassis (30) is equipped with a motor for driving the turntable (23) to rotate. The trigger block (31) is a right trapezoidal block with a sloping top. The trigger block (31) is located in the relief groove (33). The relief groove (33) is an annular groove. The receiving groove (34) is a rectangular groove. Four identical receiving grooves (34) are evenly opened on the top of the turntable (23). The same lower mold (24) is set in each receiving groove (34). All receiving grooves (34) can communicate with the relief groove (33).

3. The hydraulic forming machine for natural gas pipeline elbows according to claim 1, characterized in that, The automatic structure also includes a fixed shaft (35), a sleeve (37) and a trigger plate (38). The fixed shaft (35) is fixedly connected in each receiving groove (34), the sleeve (37) is fixedly connected to the bottom of the front wall of each receiving groove (34), and the trigger plate (38) is fixedly connected to the bottom of each lower mold (24).

4. A hydraulic forming machine for natural gas pipeline elbows according to claim 3, characterized in that, The fixed shaft (35) is cylindrical, the sleeve (37) is tubular, the sleeve (37) can be sleeved with the corresponding fixed shaft (35), the trigger plate (38) is an arc-shaped plate, the trigger plate (38) is located in the middle of the bottom of the receiving groove (34), and the bottom of the trigger plate (38) can contact the inclined surface of the trigger block (31).

5. A hydraulic forming machine for natural gas pipeline elbows according to claim 3, characterized in that, The automatic structure also includes an anti-detachment ring (32), a limiting block (36), and a collection tube (39). The anti-detachment ring (32) is fixedly connected to the top of the frame (20), the limiting block (36) is fixedly connected to the center of the top of the turntable (23), and the collection tube (39) is fixedly connected to the top of the frame (20).

6. A hydraulic forming machine for natural gas pipeline elbows according to claim 5, characterized in that, The anti-detachment ring (32) is a circular tube with an opening on its arc surface. The limiting block (36) is a rectangular block with its four sides aligned with the four lower molds (24). The collecting tube (39) is a U-shaped tube located at the opening of the anti-detachment ring (32). The top opening of the collecting tube (39) is a sloping surface. The position of the collecting tube (39) is aligned with the position of the trigger block (31). The top of the collecting tube (39) is flush with the top of the turntable (23).

7. A hydraulic forming machine for natural gas pipeline elbows according to claim 5, characterized in that, The anti-detachment ring (32) is fixedly connected to the side wall of the alignment frame (40). The alignment frame (40) is a rectangular frame with a groove at the top. The groove at the top of the alignment frame (40) is flush with the slot of the lower mold (24). The rear wall of the alignment frame (40) is flush with the front wall of the lower mold (24).

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