Pipeline tee joint forming equipment

Abstract

The invention discloses pipeline tee joint forming equipment, belongs to the technical field of pipeline forming, and aims to solve the problem of low size quality of branch pipes of pipe blanks formed by existing pipeline tee joint forming equipment. Through a hydraulic cylinder, an extrusion column, a built-in column, a sinking groove, a groove A and a groove B, due to the fact that the two ends of the straight pipeline are blocked by the built-in column, the straight pipeline can be slowly filled with water, air in the straight pipeline is extruded to the groove A and discharged from the groove B, when the groove B overflows, the built-in column is moved, the groove B is also located in the straight pipeline, and sealing of the straight pipeline is completed; and then the hydraulic cylinder continues to extend to complete the subsequent extrusion forming step, so that air in the straight pipeline can be completely discharged, the straight pipeline cannot be interfered by the air when being extruded by the medium water, the size error is small when the branch pipe cavity is formed, and the size quality of a finished product in the later period is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe forming, and particularly to a pipe tee forming device. Background Art

[0002] The hydraulic bulging of a tee is a forming process in which a branch pipe is bulged out through axial compensation of a metal material. The process is to use a special hydraulic press to inject liquid into a pipe blank equal in diameter to the tee. The two horizontal side cylinders of the hydraulic press synchronously move in alignment to extrude the pipe blank. After the pipe blank is extruded, its volume becomes smaller, and the pressure of the liquid in the pipe blank increases as the volume of the pipe blank decreases. When the pressure required for the branch pipe of the tee to bulge out is reached, the metal material flows along the inner cavity of the die under the dual action of the side cylinder and the liquid pressure in the pipe blank to bulge out the branch pipe.

[0003] In the Chinese patent with the application number CN201210421459.X, a tee forming device is disclosed. High-pressure water is injected into the pipe fitting in the die to bulge the pipe fitting into a rough tee blank, including a machine base, a liquid injection device, and a thimble for inserting into the pipe fitting and injecting water into the pipe fitting. The liquid injection device is provided with a liquid outlet, and a liquid passage cavity is provided in the thimble. The liquid injection device and the thimble are arranged to move synchronously. A rigid liquid injection pipe is connected between the liquid passage cavity of the thimble and the liquid outlet of the liquid injection device. Since the thimble and the liquid injection device are relatively stationary and move synchronously, the pipe connecting the liquid outlet of the liquid injection device and the liquid passage cavity of the thimble can be a rigid liquid injection pipe that only meets the pressure resistance. Such pipe fittings have a lower cost, and the price is generally only about ten percent of the pipe fittings that can meet the requirements of softness and pressure resistance at the same time. Moreover, the rigid liquid injection pipe and the thimble are relatively stationary and are not likely to be damaged due to mechanical fatigue caused by long-term movement.

[0004] In the above patent during operation, before injecting liquid into the pipe blank, the air in the pipe blank needs to be discharged. Otherwise, during the extrusion process, there is still air in the pipe blank, which will cause the liquid in the pipe blank to be insufficiently filled. Currently, when the existing tee forming devices discharge air, they all operate based on experience. Although this method is simple, the air discharge rate is relatively low. As a result, during the extrusion process, the extrusion force of the liquid on the pipe blank will be offset by the air, directly affecting the quality of the subsequent formation of the branch pipe of the pipe blank and resulting in the finished product not meeting the expected process dimensions.

[0005] Therefore, we have proposed a pipe tee forming device. Summary of the Invention

[0006] The purpose of the present invention is to provide a pipe tee forming device, which solves the problem of the low dimensional quality of the branch pipe of the pipe blank formed by the existing pipe tee forming devices in the background art.

[0007] To achieve the above object, the present invention provides the following technical solution: a pipe tee forming device, including a bottom plate, a U-shaped frame plate arranged at the upper end of the bottom plate, a downward pressing component arranged on the inner wall of the U-shaped frame plate, and a lower template arranged on the upper surface of the bottom plate. The downward pressing component and the lower template are arranged in the same vertical plane. A straight pipe is placed on the upper end of the lower template. Side pressing components are arranged on both sides of the U-shaped frame plate; The side pressing component includes hydraulic cylinders arranged on both sides of the U-shaped frame plate, extrusion columns arranged at the output ends of the hydraulic cylinders, and built-in columns arranged at one ends of the extrusion columns. A water spray pipe is arranged on one side of the built-in column. A sunk groove is formed on the outer surface of the built-in column, a groove A is formed on the inner wall of the sunk groove, a groove B is also formed on the outer surface of the built-in column, and the groove A is communicated with the groove B. One end of the water spray pipe passes through the inside of the built-in column and the extrusion column and is connected to the outside.

[0008] Further, the side pressing component further includes a flange A arranged on the inner wall of the U-shaped frame plate, and a sleeve arranged on the outer surface of the flange A. The extrusion column is movably sleeved inside the sleeve, and a connecting groove is formed on the outer surface of the sleeve.

[0009] Further, water outlet holes are formed on the outer surface of the water spray pipe, a sealing plug is arranged on the outer surface of the built-in column, a water spraying component is arranged at the lower end of the bottom plate, one end of the water spraying component is connected to the extrusion column and is communicated with the water spray pipe, and a rubber pad is fixedly installed on the inner wall of the connecting groove.

[0010] Further, the water spraying component includes a water tank fixedly installed at the lower end of the bottom plate, a filter plate movably arranged inside the water tank, a plug-in plate fixedly installed at one end of the filter plate, and an upper connecting pipe penetrating through the outer surface of the filter plate. One end of the upper connecting pipe is provided with a docking pipe, the other end of the upper connecting pipe is communicated with the medium water contained in the water tank, a water pump is arranged on the outer surface of the docking pipe, one end of the docking pipe passes through the connecting groove and is arranged inside the extrusion column and is connected to the water spray pipe, and both ends of the water pump are connected to the upper connecting pipe and the docking pipe respectively.

[0011] Further, a downward pressing block is also arranged inside the water tank. An inclined surface is formed on the upper surface of the downward pressing block, an upper ejecting rod is fixedly installed on the inclined surface, a sliding groove is formed on the inner wall of the water tank, a sliding block and a return spring are arranged inside the sliding groove, one end of the return spring is connected to the sliding block, the other end of the return spring is connected to the inner wall of the sliding groove, and one side of the sliding block is connected to the downward pressing block.

[0012] Furthermore, a placement groove is provided on the upper surface of the base plate, a guide groove is provided inside the placement groove, an upper pipe is passed through the guide groove, a supporting mold cavity is provided in the mold cavity of the lower template, a socket is provided inside the supporting mold cavity, an angle iron is provided on the outer surface of the lower template, and the lower template is connected to the base plate through the angle iron, and the upper push rod and the socket are arranged in the same vertical plane. When the upper pipe is pushed, it will move horizontally along the guide groove. In the initial state, the upper push rod is flush with the upper end surface of the socket. During the processing, the filter plate moves with the extrusion column to press down the lower pressure block, so that the upper push rod moves down along the socket. When the processing is completed, the extrusion column is reset, which indirectly resets the upper push rod, causing knocking on the branch pipe formed by the straight pipe.

[0013] Furthermore, the pressing assembly includes a flange B arranged on the inner top wall of the U-shaped frame plate, a mounting cylinder fixedly mounted on the outer surface of the flange B, and a main hydraulic push rod arranged at one end of the mounting cylinder, a mounting main board is fixedly mounted on one end of the main hydraulic push rod, a T-slot is provided on the outer surface of the mounting main board, a T-block is inserted in the T-slot, a docking plate is fixedly mounted on one side of the T-block, an upper template is provided at the lower end of the docking plate, an upper mold cavity is provided on the outer surface of the upper template, the extension and retraction of the main hydraulic push rod drives the mounting main board to move up and down, thereby driving the upper template to move up and down, so that the upper mold cavity is accurately connected to the upper end of the straight pipe, and forms a mold together with the lower template, and the upper template can be removed from the mounting main board by sliding the T-block.

[0014] Furthermore, a side block is fixedly installed on one side of the mounting main board, an electric auxiliary push rod is arranged on the upper end of the side block, a connecting sleeve is arranged on the output end of the electric auxiliary push rod, one end of the electric auxiliary push rod is fixedly connected to the inner wall of the U-shaped frame plate, the electric auxiliary push rod is connected to the side block through the connecting sleeve, an extension rod is also fixedly installed on the upper end of the side block, a flat pressure plate is fixedly installed on the upper end of the extension rod, when the mounting main board moves up and down, the side block will be driven to move together, and then the extension rod will be driven to move, thereby driving the flat pressure plate to move up and down, the setting of the electric auxiliary push rod prevents providing additional pressure when the pressure of the main hydraulic push rod is insufficient.

[0015] Furthermore, a U-shaped groove is provided on one side of the U-shaped frame plate, and a displacement groove is provided on one side of the U-shaped groove. The extension rod is inserted into the displacement groove, and the flat pressure plate is located in the U-shaped groove. When the main board is installed and moved up and down, the extension rod will move up and down along the displacement groove, thereby driving the flat pressure plate to move up and down in the U-shaped groove.

[0016] Further, a processing component is arranged inside the U-shaped groove. The processing component includes an airbag pad arranged inside the U-shaped groove, an air pipe arranged on the outer surface of the U-shaped frame plate, and an inclined pipe arranged at one end of the air pipe. An inclined hole is formed on one side of the inclined pipe. One end of the air pipe is communicated with the U-shaped groove. After the work is completed, the installation main board moves upward, driving the flat pressing plate to move upward, thereby squeezing one end of the airbag pad, and squeezing the gas in the airbag pad out from the inclined hole. When the installation main board returns to the initial state, the inclined pipe faces the upper template.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: For the pipe tee forming equipment proposed by the present invention, in the prior art, the size and quality of the pipe blank branch formed by the pipe tee forming equipment are relatively low. However, in the present invention, through the hydraulic cylinder, the extrusion column, the built-in column, the sunken groove, the groove A, and the groove B, after placing the straight pipe on the lower template, first use the main hydraulic push rod to press down the upper template to complete the mold closing and fix the straight pipe. Then start the hydraulic cylinder, and one end of the two hydraulic cylinders gradually extends towards the straight pipe direction, and the built-in column will slowly extend into the interior of the straight pipe. When the groove A is inside the straight pipe but the groove B is not inside the straight pipe, turn on the water pump, and the medium water enters the upper connecting pipe and the docking pipe, and finally sprays out from the water spray pipe and flows into the straight pipe. Since both ends of the straight pipe are blocked by the built-in column, the water will slowly fill the straight pipe, squeeze the air in the straight pipe into the groove A and discharge it from the groove B. When the groove B shows a water overflow phenomenon, move the built-in column again to make the groove B also inside the straight pipe to complete the sealing of the straight pipe, and then continue to extend the hydraulic cylinder to complete the subsequent extrusion forming steps. In this way, all the air in the straight pipe can be discharged, so that when the straight pipe is squeezed by the medium water, it will not be interfered by the air, and when forming the branch pipe cavity, the size error received is smaller, improving the size quality of the later finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the pipe tee forming equipment of the present invention Figure 1 ; Figure 2 is a schematic diagram of the overall structure of the pipe tee forming equipment of the present invention Figure 2 ; Figure 3 is a schematic diagram of the structure of the downward pressing component of the pipe tee forming equipment of the present invention; Figure 4 is a schematic diagram of the structure of the U-shaped frame plate of the pipe tee forming equipment of the present invention; Figure 5 is a schematic diagram of the structure of the side pressing component of the pipe tee forming equipment of the present invention; Figure 6 is a schematic diagram of the structure of the bottom plate of the pipe tee forming equipment of the present invention; Figure 7Schematic structure of the water spraying component of the pipe tee forming equipment of the present invention Figure 1 ; Figure 8 Schematic structure of the water spraying component of the pipe tee forming equipment of the present invention Figure 2 。

[0019] In the figure: 1. Bottom plate; 11. Placing groove; 12. Guide groove; 2. U-shaped frame plate; 21. U-shaped groove; 22. Displacement groove; 3. Pressing-down component; 31. Main hydraulic push rod; 32. Installation cylinder; 33. Flange B; 34. Installation main board; 341. T-shaped block; 342. Quasi-connecting board; 35. Upper template; 351. Upper die cavity; 36. Side position block; 37. Electric auxiliary push rod; 371. Connecting sleeve; 38. Extension rod; 39. Flat pressing plate; 4. Lower template; 41. Supporting die cavity; 42. Insertion hole; 43. Angle iron; 5. Side pressing component; 51. Hydraulic cylinder; 52. Extrusion column; 53. Inner column; 531. Sunk groove; 532. Groove A; 533. Groove B; 54. Sleeve; 541. Connecting groove; 542. Rubber pad; 55. Flange A; 56. Sealing plug; 57. Water spraying pipe; 571. Water outlet hole; 6. Water spraying component; 61. Water tank; 611. Slide groove; 612. Slide block; 613. Return spring; 62. Filter plate; 63. Insertion board; 64. Docking pipe; 65. Upper connecting pipe; 66. Water pump; 67. Pressing-down block; 68. Upper ejector rod; 7. Processing component; 71. Airbag pad; 72. Air pipe; 73. Oblique platform pipe; 74. Oblique hole; 8. Support seat; 9. Straight pipe. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0021] In order to solve the technical problem that the size quality of the pipe blank branch of the existing pipe tee forming equipment is relatively low, as Figure 1 、 Figure 2 and Figure 5 shown, the following preferred technical solutions are provided: The pipe tee forming equipment includes a bottom plate 1, a U-shaped frame plate 2 arranged at the upper end of the bottom plate 1, a pressing-down component 3 arranged on the inner wall of the U-shaped frame plate 2, and a lower template 4 arranged on the upper surface of the bottom plate 1. The pressing-down component 3 and the lower template 4 are arranged in the same vertical plane. A straight pipe 9 is placed at the upper end of the lower template 4, and side pressing components 5 are arranged on both sides of the U-shaped frame plate 2; The side pressing assembly 5 includes hydraulic cylinders 51 arranged on both sides of the U-shaped frame plate 2, pressing columns 52 arranged at the output ends of the hydraulic cylinders 51, and built-in columns 53 arranged at one ends of the pressing columns 52. A water spraying pipe 57 is arranged on one side of the built-in column 53. A sunken groove 531 is formed on the outer surface of the built-in column 53. A groove A 532 is formed on the inner wall of the sunken groove 531. A groove B 533 is also formed on the outer surface of the built-in column 53. The groove A 532 communicates with the groove B 533. One end of the water spraying pipe 57 passes through the inside of the built-in column 53 and the pressing column 52 and communicates with the outside.

[0022] Specifically, after the straight pipe 9 is placed on the lower template 4, first use the downward pressing assembly 3 to fix the straight pipe 9, and then start the hydraulic cylinders 51. One ends of the two hydraulic cylinders 51 gradually extend towards the straight pipe 9, and the built-in column 53 will slowly extend into the inside of the straight pipe 9. When the groove A 532 is inside the straight pipe 9 but the groove B 533 is not inside the straight pipe 9, connect one end of the water spraying pipe 57 to a water source, and the medium water will spray out from the water spraying pipe 57 and flow into the straight pipe 9. Since both ends of the straight pipe 9 are blocked by the built-in column 53, the water will slowly fill the straight pipe 9, squeeze the air inside the straight pipe 9 into the groove A 532 and discharge it from the groove B 533. When water overflows from the groove B 533, move the built-in column 53 again to make the groove B 533 also inside the straight pipe 9, and then continue to extend the hydraulic cylinders 51 to complete the subsequent pressing steps, so that when the straight pipe 9 is squeezed by the medium water, it will not be interfered by air, and when forming the branch pipe cavity, the dimensional error received is smaller, improving the dimensional quality of the later finished product. Embodiment

[0023] To solve the technical problem of how to quickly take out the formed straight pipe 9, as Figures 5 - 8 shown, the following preferred technical solutions are provided: The side pressing assembly 5 further includes a flange A 55 arranged on the inner wall of the U-shaped frame plate 2, and a sleeve 54 arranged on the outer surface of the flange A 55. The pressing column 52 is movably sleeved inside the sleeve 54. A connection groove 541 is formed on the outer surface of the sleeve 54. The output end of the hydraulic cylinder 51 drives the pressing column 52 to move left and right along the inside of the sleeve 54.

[0024] The outer surface of the water spray pipe 57 is provided with water outlet holes 571. A sealing plug 56 is arranged on the outer surface of the built-in column 53. The lower end of the bottom plate 1 is provided with a water spraying assembly 6. One end of the water spraying assembly 6 is connected to the extrusion column 52 and is in communication with the water spray pipe 57. A rubber pad 542 is fixedly installed on the inner wall of the connection groove 541. The medium water in the water spray pipe 57 will be sprayed out from the water outlet holes 571. When one end of the extrusion column 52 contacts the straight pipe 9, the sealing plug 56 will be completely inside the straight pipe 9, playing a sealing role for the medium water in the straight pipe 9. When the extrusion column 52 is moving, the water spraying assembly 6 will move accordingly. The rubber pad 542 is used to prevent the water spraying assembly 6 from hitting the connection groove 541 during the movement. The lower end of the bottom plate 1 is also fixedly installed with a support seat 8.

[0025] The water spraying assembly 6 includes a water tank 61 fixedly installed at the lower end of the bottom plate 1, a filter plate 62 movably arranged inside the water tank 61, a plug-in plate 63 fixedly installed at one end of the filter plate 62, and an upper connecting pipe 65 penetrating through the outer surface of the filter plate 62. One end of the upper connecting pipe 65 is provided with a docking pipe 64. The other end of the upper connecting pipe 65 is in communication with the medium water contained in the water tank 61. A water pump 66 is arranged on the outer surface of the docking pipe 64. One end of the docking pipe 64 passes through the connection groove 541 and is arranged inside the extrusion column 52 and is in communication with the water spray pipe 57. Both ends of the water pump 66 are in communication with the upper connecting pipe 65 and the docking pipe 64. When it is necessary to inject the medium water, the water pump 66 is turned on, and the medium water in the water tank 61 is pumped into the upper connecting pipe 65 and the docking pipe 64, and finally sprayed out by the water spray pipe 57. At the same time, during the process of the extrusion column 52 being pushed by the hydraulic cylinder 51, the docking pipe 64, the upper connecting pipe 65 and the filter plate 62 will also move accordingly, ensuring the stability when outputting the medium water.

[0026] A lower pressing block 67 is further arranged inside the water tank 61. The upper surface of the lower pressing block 67 is provided with an inclined surface, and an upper ejecting rod 68 is fixedly installed on the inclined surface. A sliding groove 611 is arranged on the inner wall of the water tank 61. A sliding block 612 and a reset spring 613 are arranged inside the sliding groove 611. One end of the reset spring 613 is connected to the sliding block 612, and the other end of the reset spring 613 is connected to the inner wall of the sliding groove 611. One side of the sliding block 612 is connected to the lower pressing block 67. Both the filter plate 62 and the lower pressing block 67 are provided with two groups. During the movement of the upper connecting pipe 65, it will drive the filter plate 62 to move together. The filter plate 62 will drive the plug-in plate 63 to move until the plug-in plate 63 touches the lower pressing block 67. Since the inclined surface is provided on the lower pressing block 67, when the plug-in plate 63 touches the lower pressing block 67, the lower pressing block 67 will receive a downward pressure, so that the reset spring 613 is compressed and contracted, and the lower pressing block 67 and the upper ejecting rod 68 move downward accordingly.

[0027] A placement groove 11 is provided on the upper surface of the base plate 1, a guide groove 12 is provided inside the placement groove 11, an upper pipe 65 is passed through the guide groove 12, a support mold cavity 41 is provided in the mold cavity of the lower template 4, a socket 42 is provided inside the support mold cavity 41, an angle iron 43 is provided on the outer surface of the lower template 4, the lower template 4 is connected to the base plate 1 through the angle iron 43, an upper push rod 68 and the socket 42 are arranged in the same vertical plane, when the upper pipe 65 is pushed, it will move horizontally along the guide groove 12, in the initial state, the upper push rod 68 is flush with the upper end surface of the socket 42, when in the processing process, the filter plate 62 moves with the extrusion column 52, and presses down the lower pressure block 67, so that the upper push rod 68 moves down along the socket 42, when the processing is completed, the extrusion column 52 is reset, which indirectly resets the upper push rod 68, causing knocking on the branch formed by the straight pipe 9.

[0028] Specifically, during the extrusion process of the extrusion column 52 on the straight pipe 9, the movement of the extrusion column 52 can drive the upper connecting pipe 65 to move, and then drive the filter plate 62 to move, so that the plug-in plate 63 touches the lower pressure block 67. Since the lower pressure block 67 is provided with an inclined surface, when the plug-in plate 63 touches the lower pressure block 67, the lower pressure block 67 will be subjected to a downward pressure, so that the reset spring 613 is squeezed and contracted, and the lower pressure block 67 and the upper push rod 68 move downward accordingly. After the extrusion is completed, the extrusion column 52 returns to its original position, which indirectly resets the upper push rod 68, causing knocking on the branch pipe formed by the straight pipe 9, preventing the newly formed branch pipe of the straight pipe 9 from being in close contact with the supporting mold cavity 41 and being difficult to remove, thereby indirectly improving the overall work efficiency. Example

[0029] In order to solve the technical problem of how to clean the upper template 35, as Figure 3 and Figure 4 As shown, the following preferred technical solutions are provided: The pressing assembly 3 includes a flange B33 arranged on the inner top wall of the U-shaped frame plate 2, a mounting cylinder 32 fixedly mounted on the outer surface of the flange B33, and a main hydraulic push rod 31 arranged at one end of the mounting cylinder 32, a mounting main board 34 is fixedly mounted on one end of the main hydraulic push rod 31, a T-slot is provided on the outer surface of the mounting main board 34, a T-block 341 is inserted in the T-slot, a quasi-plate 342 is fixedly mounted on one side of the T-block 341, an upper template 35 is provided at the lower end of the quasi-plate 342, an upper mold cavity 351 is provided on the outer surface of the upper template 35, the extension and retraction of the main hydraulic push rod 31 drives the mounting main board 34 to move up and down, thereby driving the upper template 35 to move up and down, so that the upper mold cavity 351 is accurately connected to the upper end of the straight pipe 9, and forms a mold together with the lower template 4, and the sliding T-block 341 can remove the upper template 35 from the mounting main board 34.

[0030] On one side of the mounting main board 34, a side block 36 is fixedly installed. At the upper end of the side block 36, an electric auxiliary push rod 37 is provided. At the output end of the electric auxiliary push rod 37, a connecting sleeve 371 is provided. One end of the electric auxiliary push rod 37 is fixedly connected to the inner wall of the U-shaped frame plate 2. The electric auxiliary push rod 37 is connected to the side block 36 through the connecting sleeve 371. At the upper end of the side block 36, an extension rod 38 is also fixedly installed. At the upper end of the extension rod 38, a flat pressing plate 39 is fixedly installed. During the up and down movement of the mounting main board 34, the side block 36 will be driven to move together, and then the extension rod 38 will be driven to move, thereby driving the flat pressing plate 39 to move up and down. The setting of the electric auxiliary push rod 37 prevents the main hydraulic push rod 31 from providing additional pressure when the pressure is insufficient.

[0031] On one side of the U-shaped frame plate 2, a U-shaped groove 21 is provided. On one side of the U-shaped groove 21, a displacement groove 22 is provided. The extension rod 38 is inserted into the displacement groove 22. The flat pressing plate 39 is located in the U-shaped groove 21. When the mounting main board 34 moves up and down, the extension rod 38 will be driven to move up and down along the displacement groove 22, and then the flat pressing plate 39 will be driven to move up and down in the U-shaped groove 21.

[0032] Inside the U-shaped groove 21, a processing component 7 is provided. The processing component 7 includes an airbag pad 71 provided inside the U-shaped groove 21, an air pipe 72 provided on the outer surface of the U-shaped frame plate 2, and an inclined pipe 73 provided at one end of the air pipe 72. An inclined hole 74 is provided on one side of the inclined pipe 73. One end of the air pipe 72 is communicated with the U-shaped groove 21. After the work is completed, the mounting main board 34 moves up, driving the flat pressing plate 39 to move up, and then squeezing one end of the airbag pad 71, and the gas in the airbag pad 71 is squeezed out from the inclined hole 74. When the mounting main board 34 returns to the initial state, the inclined pipe 73 faces the upper template 35.

[0033] Specifically, after the extrusion is completed for support, the main hydraulic push rod 31 drives the mounting main board 34 to move up. During the upward movement, the flat pressing plate 39 will continuously squeeze the airbag pad 71, and the gas in the airbag pad 71 is squeezed out from the inclined hole 74. The squeezed gas blows towards the upper die cavity 351 on the upper template 35 at a certain speed, and can remove some impurities in the upper die cavity 351, preventing impurities in the upper die cavity 351 from affecting the mold closing.

[0034] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A pipe tee forming device, comprising a base plate (1), a U-shaped frame plate (2) arranged at the upper end of the base plate (1), a pressing assembly (3) arranged on the inner wall of the U-shaped frame plate (2), and a lower template (4) arranged on the upper surface of the base plate (1), wherein the pressing assembly (3) and the lower template (4) are arranged in the same vertical plane, and a straight pipe (9) is placed at the upper end of the lower template (4), characterized in that: Side pressure components (5) are provided on both sides of the U-shaped frame plate (2); The side pressure assembly (5) comprises a hydraulic cylinder (51) arranged on both sides of the U-shaped frame plate (2), an extrusion column (52) arranged at the output end of the hydraulic cylinder (51), and an internal column (53) arranged at one end of the extrusion column (52); a water spray pipe (57) is arranged on one side of the internal column (53); a sink groove (531) is provided on the outer surface of the internal column (53); a groove A (532) is provided on the inner wall of the sink groove (531); a groove B (533) is further provided on the outer surface of the internal column (53); the groove A (532) is connected to the groove B (533); and one end of the water spray pipe (57) passes through the internal of the internal column (53) and the extrusion column (52) to be connected to the outside.

2. The pipe tee forming equipment according to claim 1, characterized in that: The side pressure assembly (5) further comprises a flange A (55) arranged on the inner wall of the U-shaped frame plate (2), and a sleeve (54) arranged on the outer surface of the flange A (55); the extrusion column (52) is movably sleeved inside the sleeve (54); and a connecting groove (541) is provided on the outer surface of the sleeve (54).

3. The pipe tee forming equipment according to claim 2, characterized in that: A water outlet hole (571) is provided on the outer surface of the water spray pipe (57), a sealing plug (56) is provided on the outer surface of the built-in column (53), a water spray assembly (6) is provided at the lower end of the bottom plate (1), one end of the water spray assembly (6) is connected to the extrusion column (52) and communicated with the water spray pipe (57), and a rubber pad (542) is fixedly installed on the inner wall of the connecting groove (541).

4. The pipe tee forming equipment according to claim 3, characterized in that: The water spray assembly (6) comprises a water tank (61) fixedly mounted at the lower end of the bottom plate (1), a filter plate (62) movably mounted inside the water tank (61), a plug plate (63) fixedly mounted at one end of the filter plate (62), and an upper pipe (65) penetrating the outer surface of the filter plate (62); a butt pipe (64) is disposed at one end of the upper pipe (65); the other end of the upper pipe (65) is connected to the medium water contained in the water tank (61); a water pump (66) is disposed on the outer surface of the butt pipe (64); one end of the butt pipe (64) is passed through the connecting groove (541) and is disposed in the extrusion column (52) and is connected to the water spray pipe (57); and two ends of the water pump (66) are respectively connected to the upper pipe (65) and the butt pipe (64).

5. The pipe tee forming equipment according to claim 4, characterized in that: A lower pressing block (67) is also provided inside the water tank (61), an upper surface of the lower pressing block (67) is provided with an inclined surface, an upper push rod (68) is fixedly mounted on the inclined surface, a slide groove (611) is provided on the inner wall of the water tank (61), a slider (612) and a return spring (613) are provided inside the slide groove (611), one end of the return spring (613) is connected to the slider (612), the other end of the return spring (613) is connected to the inner wall of the slide groove (611), and one side of the slider (612) is connected to the lower pressing block (67).

6. The pipe tee forming equipment according to claim 5, characterized in that: The upper surface of the bottom plate (1) is provided with a placement groove (11), the interior of the placement groove (11) is provided with a guide groove (12), the upper pipe (65) is inserted into the interior of the guide groove (12), the mold cavity of the lower mold plate (4) is provided with a supporting mold cavity (41), the interior of the supporting mold cavity (41) is provided with an insertion hole (42), an angle iron (43) is provided on the outer surface of the lower mold plate (4), the lower mold plate (4) is connected to the bottom plate (1) via the angle iron (43), and the upper push rod (68) and the insertion hole (42) are arranged in the same vertical plane.

7. The pipe tee forming equipment according to claim 6, characterized in that: The pressing assembly (3) comprises a flange B (33) arranged on the inner top wall of the U-shaped frame plate (2), a mounting tube (32) fixedly mounted on the outer surface of the flange B (33), and a main hydraulic push rod (31) arranged at one end of the mounting tube (32), a mounting main plate (34) fixedly mounted on one end of the main hydraulic push rod (31), a T-shaped slot is provided on the outer surface of the mounting main plate (34), a T-shaped block (341) is inserted into the T-shaped slot, a quasi-connection plate (342) is fixedly mounted on one side of the T-shaped block (341), an upper mold plate (35) is provided at the lower end of the quasi-connection plate (342), and an upper mold cavity (351) is provided on the outer surface of the upper mold plate (35).

8. The pipe tee forming equipment according to claim 7, characterized in that: A side block (36) is fixedly mounted on one side of the mounting main board (34); an electric auxiliary push rod (37) is arranged at the upper end of the side block (36); a connecting sleeve (371) is arranged at the output end of the electric auxiliary push rod (37); one end of the electric auxiliary push rod (37) is fixedly connected to the inner wall of the U-shaped frame plate (2); the electric auxiliary push rod (37) is connected to the side block (36) via the connecting sleeve (371); an extension rod (38) is also fixedly mounted on the upper end of the side block (36); and a flattening plate (39) is fixedly mounted on the upper end of the extension rod (38).

9. The pipe tee forming equipment according to claim 8, characterized in that: A U-shaped groove (21) is provided on one side of the U-shaped frame plate (2), a displacement groove (22) is provided on one side of the U-shaped groove (21), an extension rod (38) is inserted into the displacement groove (22), and a flat pressing plate (39) is located in the U-shaped groove (21).

10. The pipe tee forming equipment according to claim 9, characterized in that: A processing assembly (7) is arranged inside the U-shaped groove (21), and the processing assembly (7) comprises an airbag cushion (71) arranged inside the U-shaped groove (21), an air pipe (72) arranged on the outer surface of the U-shaped frame plate (2), and an inclined platform pipe (73) arranged at one end of the air pipe (72), an inclined hole (74) being opened on one side of the inclined platform pipe (73), and one end of the air pipe (72) is connected to the U-shaped groove (21).

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