A tank stretching tooling mold

Abstract

This utility model relates to the field of tank production technology, specifically a tank stretching tooling mold, including a fixed base, a placement seat and an L-shaped bracket fixed above the fixed base, a hydraulic cylinder fixed above the L-shaped bracket, an upper mold fixed below the hydraulic cylinder, an oil tank and a nozzle A fixed above the placement seat, a piston rod movable inside the oil tank, a connecting rod connecting the piston rod and the hydraulic cylinder, an oil pipe connecting the nozzle A and the oil tank, a lower mold and an air tank fixed inside the placement seat, a spherical rod fixed to the outer wall of the hydraulic cylinder, a nozzle B fixed above the air tank, and an exhaust pipe connected to the outer wall of the air tank. This utility model achieves lubrication, friction reduction, and cooling during stretching through the oil tank assembly, reducing defects such as scratches and wrinkles on the tank, extending the mold life, ensuring smooth demolding, and improving the quality and efficiency of the stretched finished product.

Description

Technical Field

[0001] This utility model relates to the field of tank production technology, and in particular to a tank stretching tooling mold. Background Technology

[0002] Storage tanks are commonly used containers for storage and transportation. During the production process, the tank body is mainly formed by stretching a cut circular plate to form the lower part of the tank body, and then stretching it to form the upper part of the tank body. The two parts are then welded together to form a complete tank body. Therefore, tank body stretching tooling molds are used.

[0003] However, during the stretching process, the iron sheet is prone to sticking to the forming surfaces of the upper and lower molds during deformation under stress, which will affect the surface smoothness of the can and thus reduce the overall forming quality.

[0004] In view of this, we have studied and improved the existing problems and provided a tank stretching tooling mold. The aim of this technology is to solve the problems and improve its practical value. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a tank stretching tooling mold.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tank stretching tooling mold, including a fixed base, a placement seat and an L-shaped bracket fixed above the fixed base, a hydraulic cylinder fixed above the L-shaped bracket, an upper mold fixed below the hydraulic cylinder, an oil tank and a nozzle A fixed above the placement seat, a piston rod movable inside the oil tank, a connecting rod connecting the piston rod and the hydraulic cylinder, an oil pipe connecting the nozzle A and the oil tank, and a lower mold and an air tank fixed inside the placement seat; A spherical rod is fixed to the outer wall of the hydraulic cylinder. A nozzle B is fixed above the air tank. An exhaust pipe is connected to the outer wall of the air tank. An air pipe A is connected between the exhaust pipe and the nozzle B. The placement seat has cavities A and B inside. An air pipe B is connected between cavity A and the exhaust pipe. A piston is slidably installed inside cavity A. A spring A is connected between the piston and cavity A. A buffer is slidably installed inside cavity B. A spring B is connected between the buffer and cavity B. An air pipe C is connected between cavity A and cavity B. A three-way pipe is fixed inside the placement seat. A threaded rod rotates on one side of the lower mold. A blade is fixed to the outer wall of the threaded rod. A top plate is sleeved on the outer wall of the threaded rod.

[0007] Preferably, an air collecting pipe is fixed below the hydraulic cylinder, and a hot air pipe is connected to the outer wall of the air collecting pipe.

[0008] Preferably, one end of the three-way pipe is connected to one side of the threaded rod, and both ends of the three-way pipe are connected to the inner wall of cavity B.

[0009] Preferably, one end of the spring A is connected to the bottom end of the cavity A, and the other end of the spring A is connected to the bottom end of the piston.

[0010] Preferably, one end of the three-way pipe is connected to one side of the threaded rod, and the other two ends of the three-way pipe are connected to the inner wall of the cavity B.

[0011] Preferably, both the oil pipe and the gas pipe B are equipped with one-way valves.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. When the worker stretches the iron sheet into a can, the worker first places the iron sheet on the placement seat, and then starts the hydraulic cylinder and air pump. The hydraulic cylinder extends downward and drives the connecting rod to move down. Since the connecting rod is connected to the piston rod, the connecting rod drives the piston rod to move down synchronously. The piston rod moves down and squeezes the lubricating oil inside the oil can, so that the lubricating oil is squeezed and transported to nozzle A through the oil pipe and sprayed out. At the same time, the air pump pumps gas from the air tank to achieve lubrication, friction reduction and cooling during stretching. This can reduce defects such as scratches and wrinkles on the can, extend the mold life and ensure smooth demolding, and improve the quality and efficiency of the stretched product.

[0013] 2. When the iron sheet is stretched, the hydraulic cylinder moves down, causing the ball rod to move down. The buffer will slide laterally under the pressure of the ball rod. At this time, the buffer blocks the hole between cavities B, and the ball rod can continue to move down. When the ball rod squeezes the piston, the piston moves down and squeezes the air inside cavity A into air pipe C. When the worker completes the stretching of the iron sheet can, the ball rod moves up, and the channel between the three-way pipe and air pipe B is opened. The gas gathers through the three-way pipe and is transported to the blade through the three-way pipe. The blade drives the threaded rod to rotate, and then the rotation of the threaded rod drives the top plate to rise. The rise of the top plate makes the formed can be ejected, reducing the situation where the mold is difficult to remove due to sticking after forming. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is one of the partial structural schematic diagrams of this utility model; Figure 3 This utility model Figure 2 A magnified structural diagram of part A; Figure 4 This is a schematic cross-sectional view of the oil tank structure of this utility model; Figure 5 This is a cross-sectional view of part of the structure of this utility model; Figure 6This is a partial structural schematic diagram of the present utility model; Figure 7 The third part is a schematic diagram of the structure of this utility model.

[0015] Legend: 1. Fixed base; 2. Hydraulic cylinder; 3. Upper mold; 4. Lower mold; 5. Oil tank; 6. Piston rod; 7. Connecting rod; 8. Oil pipe; 9. Nozzle A; 10. Placement seat; 11. Ball rod; 12. Air tank; 13. Threaded rod; 14. Blade; 15. Top plate; 16. Piston; 17. Spring A; 18. Buffer; 19. Spring B; 20. Exhaust pipe; 21. Air pipe A; 22. Air pipe B; 23. T-connector; 24. Air collection pipe; 25. Hot air pipe; 26. Nozzle B; 27. L-shaped bracket; 28. Cavity A; 29. ​​Cavity B; 30. Air pipe C. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of this utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0017] See Figures 1 to 7 As shown, this utility model provides a tank stretching tooling mold, including a fixed base 1, a placement base 10 and an L-shaped bracket 27 fixed above the fixed base 1, a hydraulic cylinder 2 fixed above the L-shaped bracket 27, an upper mold 3 fixed below the hydraulic cylinder 2, an oil tank 5 and a nozzle A9 fixed above the placement base 10, a piston rod 6 movable inside the oil tank 5, a connecting rod 7 connecting the piston rod 6 and the hydraulic cylinder 2, an oil pipe 8 connecting the nozzle A9 and the oil tank 5, and a lower mold 4 and an air tank 12 fixed inside the placement base 10.

[0018] It should be noted that when the worker stretches the iron sheet into a can, the worker first places the iron sheet on the placement seat 10, and then starts the hydraulic cylinder 2 and the air pump. The hydraulic cylinder 2 extends downward and drives the connecting rod 7 to move down. Since the connecting rod 7 is connected to the piston rod 6, the connecting rod 7 drives the piston rod 6 to move down synchronously. The piston rod 6 moves down and squeezes the lubricating oil inside the oil can 5, so that the lubricating oil is squeezed. The lubricating oil is transported to the nozzle A9 through the oil pipe 8 and sprayed out. At the same time, the air pump pumps gas from the air can 12 to achieve lubrication, friction reduction and cooling during stretching. This can reduce defects such as scratches and wrinkles on the can body, extend the mold life and ensure smooth demolding, and improve the quality and efficiency of the stretched product.

[0019] A ball rod 11 is fixed to the outer wall of the hydraulic cylinder 2. A nozzle B26 is fixed above the air tank 12. An exhaust pipe 20 is connected to the outer wall of the air tank 12. An air pipe A21 is connected between the exhaust pipe 20 and the nozzle B26. The interior of the placement seat 10 is provided with cavities A28 and B29. An air pipe B22 is connected between cavity A28 and the exhaust pipe 20. A piston 16 is slidably disposed inside cavity A28. A spring A17 is connected between piston 16 and cavity A28. A buffer 18 is slidably disposed inside cavity B29. A spring B19 is connected between buffer 18 and cavity B29. An air pipe C30 is connected between cavity A28 and cavity B29. A three-way pipe 23 is fixed inside the placement seat 10. A threaded rod 13 rotates on one side of the lower mold 4. A blade 14 is fixed to the outer wall of the threaded rod 13. A top plate 15 is sleeved on the outer wall of the threaded rod 13.

[0020] It should be noted that when the iron sheet is stretched, the hydraulic cylinder 2 moves downward, causing the ball rod 11 to move downward. When the ball rod 11 begins to compress the buffer 18, the buffer 18 will slide laterally under the compression of the ball rod 11. At this time, the buffer 18 blocks the hole between cavities B29. When there is no obstruction from the buffer 18, the ball rod 11 can continue to move downward. When the ball rod 11 compresses the piston 16, the piston 16 moves downward, squeezing the air inside cavity A28 into the air pipe C30. Due to the hole... The gas is blocked by the buffer 18, thus sealing it inside the tracheal tube C30. When the operator completes the stretching of the iron sheet can, the ball rod 11 moves upward, and the springs B19 and A17 release their elastic potential energy, causing the buffer 18 and piston 16 to reset. At this time, the channel between the three-way pipe 23 and the tracheal tube B22 is opened, and the gas converges through the three-way pipe 23, completing convection inside the three-way pipe 23. The convection gas is then transported to the blade 14 through the three-way pipe 23, thus the blade 14 is subjected to... The impact of the convective gas causes the blade 14 to drive the threaded rod 13 to rotate, which in turn causes the top plate 15 to rise. The rise of the top plate 15 pushes out the molded can, reducing the difficulty of removing the molded mold due to sticking. At the same time, the gas in the gas tank 12 is continuously transported to the exhaust pipe 20, and a large amount of gas is transported to the nozzle B26 through the gas pipe A21. The gas sprayed from the nozzle B26 absorbs the heat from the surfaces of the lower mold 4 and the upper mold 3. Finally, the hot gas is collected in the gas collection pipe 24, and then transported to the oil pipe 8 through the hot gas pipe 25. The hot gas heats the oil pipe 8, which raises the temperature of the lubricating oil. This optimizes the viscosity and fluidity of the lubricating oil to form a continuous and complete oil film, transforming the metal friction between the iron sheet and the mold into oil film fluid friction. At the same time, it enhances the high pressure bearing capacity of the oil film, thereby reducing the tensile friction of the iron sheet and surface scratches. Meanwhile, a small amount of gas is transported to the interior of the cavity A28 through the gas pipe B22 to replenish the discharged gas.

[0021] In an optional embodiment: an air collection pipe 24 is fixed below the hydraulic cylinder 2, and a hot air pipe 25 is connected to the outer wall of the air collection pipe 24.

[0022] It should be noted that the gas ejected from nozzle B26 absorbs the heat from the surfaces of the lower mold 4 and the upper mold 3. The hot gas eventually gathers in the gas collection pipe 24, and then the hot gas is transported to the oil pipe 8 through the hot gas pipe 25. The hot gas heats the oil pipe 8, which raises the temperature of the lubricating oil and reduces the stretching friction of the iron sheet and surface scratches.

[0023] In an optional embodiment: one end of the tee tube 23 is connected to one side of the threaded rod 13, and the other two ends of the tee tube 23 are connected to the inner wall of the cavity B29.

[0024] It should be noted that when the passage between the three-way tube 23 and the air tube B22 is opened, the gas converges through the three-way tube 23 and completes convection inside the three-way tube 23. The gas after convection is stable and has sufficient kinetic energy.

[0025] In an optional embodiment: one end of spring A17 is connected to the bottom end of cavity A28, and the other end of spring A17 is connected to the bottom end of piston 16.

[0026] It should be noted that when piston 16 is compressed, spring A17 contracts, and when piston 16 is not compressed, spring A17 releases its elastic potential energy to reset piston 16.

[0027] In an optional embodiment: one end of spring B19 is connected to one side of buffer 18, and the other end of spring B19 is connected to the inner wall of cavity B29.

[0028] It should be noted that when the buffer 18 is compressed, the spring B19 contracts, and when the buffer 18 is not compressed, the spring B19 releases its elastic potential energy, causing the buffer 18 to return to its original position.

[0029] In an optional embodiment, both oil pipe 8 and gas pipe B22 are equipped with one-way valves.

[0030] It should be noted that the one-way valve installed on oil pipe 8 ensures that lubricating oil can only be delivered from oil tank 5 to nozzle A9 in one direction, avoiding backflow of lubricating oil due to piston rod 6 resetting during stretching operations. The one-way valve installed on air pipe B22 restricts gas to be supplied only from air tank 12 to cavity A28 in one direction, preventing compressed air in cavity A28 from leaking back into air pipe B22.

[0031] Working principle: It should be noted that when the worker stretches the iron sheet in the tank, the worker first places the iron sheet on the placement seat 10, and then starts the hydraulic cylinder 2 and the air pump. The hydraulic cylinder 2 extends downward and drives the connecting rod 7 to move down. Since the connecting rod 7 is connected to the piston rod 6, the connecting rod 7 drives the piston rod 6 to move down synchronously. The piston rod 6 moves down and squeezes the lubricating oil inside the oil tank 5, so that the lubricating oil is squeezed. The lubricating oil is transported to the nozzle A9 through the oil pipe 8 and sprayed out. At the same time, the air pump pumps gas out from the air tank 12. When the iron sheet is stretched, the hydraulic cylinder 2 moves downward, causing the ball rod 11 to move downward. When the ball rod 11 begins to compress the buffer 18, the buffer 18 will slide laterally under the compression of the ball rod 11. At this time, the buffer 18 blocks the hole between cavities B29. When there is no obstruction from the buffer 18, the ball rod 11 can continue to move downward. When the ball rod 11 compresses the piston 16, the piston 16 moves downward, squeezing the air inside cavity A28 into the air pipe C30. Since the hole is blocked by the buffer 18, the gas is sealed inside the air pipe C30. When the worker completes the stretching of the iron sheet, the ball rod 11 moves upward, and the springs B19 and A17 release their elastic potential energy, causing the buffer 18 and piston 16 to return to their original positions. At this time, the channel between the three-way pipe 23 and the air pipe B22 is opened, and the gas passes through the three-way pipe 23. The gas converges in the three-way pipe 23 and convection is completed inside the three-way pipe 23. The convection gas is then transported to the blade 14 through the three-way pipe 23. As a result, the blade 14 is impacted by the convection gas, which causes the threaded rod 13 to rotate. The rotation of the threaded rod 13 then causes the top plate 15 to rise. At the same time, the gas in the gas tank 12 is continuously transported to the exhaust pipe 20. A large amount of gas is transported to the nozzle B26 through the gas pipe A21. The gas sprayed from the nozzle B26 absorbs the heat from the surfaces of the lower mold 4 and the upper mold 3. Finally, the hot gas gathers in the gas collection pipe 24 and is then transported to the oil pipe 8 through the hot gas pipe 25. The hot gas heats the oil pipe 8, which raises the temperature of the lubricating oil. Meanwhile, a small amount of gas is transported to the interior of the cavity A28 through the gas pipe B22 to replenish the discharged gas.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tank stretching tooling mold, comprising a fixed base (1), characterized in that: The fixed base (1) is fixed with a placement base (10) and an L-shaped bracket (27) above it. The L-shaped bracket (27) is fixed with a hydraulic cylinder (2) above it. The upper mold (3) is fixed with the lower part of the hydraulic cylinder (2). The placement base (10) is fixed with an oil tank (5) and a nozzle A (9). The oil tank (5) has a movable piston rod (6). The piston rod (6) and the hydraulic cylinder (2) are connected by a connecting rod (7). The nozzle A (9) and the oil tank (5) are connected by an oil pipe (8). The placement base (10) is fixed with a lower mold (4) and an air tank (12). A spherical rod (11) is fixed to the outer wall of the hydraulic cylinder (2). A nozzle B (26) is fixed above the air tank (12). An exhaust pipe (20) is connected to the outer wall of the air tank (12). An air pipe A (21) is connected between the exhaust pipe (20) and the nozzle B (26). A cavity A (28) and a cavity B (29) are provided inside the placement seat (10). An air pipe B (22) is connected between the cavity A (28) and the exhaust pipe (20). A piston (16) is slidably provided inside the cavity A (28). The piston (16) and the cavity A spring A (17) is connected between A (28), a buffer (18) slides inside the cavity B (29), a spring B (19) is connected between the buffer (18) and the cavity B (29), an air pipe C (30) is connected between the cavity A (28) and the cavity B (29), a three-way pipe (23) is fixed inside the placement seat (10), a threaded rod (13) rotates on one side of the lower mold (4), a blade (14) is fixed on the outer wall of the threaded rod (13), and a top plate (15) is sleeved on the outer wall of the threaded rod (13).

2. The tank stretching tooling mold according to claim 1, characterized in that: A gas collecting pipe (24) is fixed below the hydraulic cylinder (2), and a hot gas pipe (25) is connected to the outer wall of the gas collecting pipe (24).

3. The tank stretching tooling mold according to claim 1, characterized in that: One end of the three-way pipe (23) is connected to one side of the threaded rod (13), and the other two ends of the three-way pipe (23) are connected to the inner wall of the cavity B (29).

4. The tank stretching tooling mold according to claim 1, characterized in that: One end of the spring A (17) is connected to the bottom end of the cavity A (28), and the other end of the spring A (17) is connected to the bottom end of the piston (16).

5. The tank stretching tooling mold according to claim 1, characterized in that: One end of the spring B (19) is connected to one side of the buffer (18), and the other end of the spring B (19) is connected to the inner wall of the cavity B (29).

6. The tank stretching tooling mold according to claim 1, characterized in that: Both the oil pipe (8) and the gas pipe B (22) are equipped with one-way valves.

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