A cold pressing forming equipment and a production process for 45° inclined tee pipe fittings

Abstract

The invention discloses a cold forming device and a production process for a 45° inclined tee pipe fitting, and relates to the technical field of pipe fitting die-casting process. The cold forming device comprises a device frame and a demoulding device; wherein a vertical hydraulic press is fixedly penetrated on the top of the device frame, a vertical pressure rod is fixedly installed on the output end of the vertical hydraulic press, a mounting plate is slidably installed inside the device frame, an upper mold is fixedly installed below the mounting plate, a transverse hydraulic press is fixedly installed on the bottom of the inner wall of the device frame, and a lower mold is fixedly installed on the bottom of the inner wall of the device frame; wherein the demoulding device comprises a transverse pressure rod, a cylinder, a sliding plate, a receiving rod, an exhaust pipe and a sliding baffle, and the transverse pressure rod is fixedly installed on the output end of the transverse hydraulic press. The cold forming device reduces damage generated during the demoulding process, reduces equipment loss and subsequent maintenance costs.

Description

Technical Field

[0001] The invention relates to the technical field of pipe fitting die-casting technology, in particular to cold pressing forming equipment and a production process for a 45-degree inclined tee pipe fitting. Background Art

[0002] 45° inclined tee pipe fitting cold forming equipment is a special equipment used to produce 45° inclined tee pipe fittings. This equipment usually uses hydraulic or mechanical pressure to bend metal sheets into 45° inclined tee pipe fittings by cold pressing metal sheets into a mold of a specific shape.

[0003] The patent with the patent announcement number CN116393609B relates to a cold pressing forming equipment and a 45° inclined tee pipe fitting production process, and relates to the field of pipe fitting die-casting process. In this patent, when the push mechanism pushes the inclined tee pipe upward for demoulding, the positioning rod is synchronously moved upward under the drive of the transmission assembly, the lifting drive assembly and the translation drive assembly, and moves to the left to be plugged into one end of the inclined tee pipe, so that the inclined tee pipe is limited by the positioning rod to prevent the inclined tee pipe from tipping and falling during demoulding; at the same time, compared with the manual clamping limit, the positioning rod is synchronously driven by the push mechanism when demoulding, without manual drive, which is not only more convenient to use, but also because there is no need for manual approach during demoulding, and there is no need to consider whether it will cause safety hazards to the staff. Therefore, the demoulding operation of the inclined tee pipe can be synchronously performed during the process of mold opening and cold pressing mechanism resetting operation, thereby improving the demoulding efficiency and production efficiency of the inclined tee pipe.

[0004] In the above patent, the inclined tee pipe is limited by a positioning rod to prevent it from tipping over and falling during the demolding process. The demolding operation of the inclined tee pipe can be performed simultaneously during the mold opening and the cold pressing mechanism resetting operation, thereby improving the demolding efficiency and production efficiency of the inclined tee pipe. However, in the process of demolding the mold, the pipe fittings after cold pressing are in close contact with the mold, and the pushing mechanism directly contacts and pushes the pipe fittings after cold pressing, which may cause wear to the pipe fittings, reduce the quality of the pipe fittings, and increase subsequent maintenance costs. For this reason, a 45° inclined tee pipe fitting cold pressing forming equipment that avoids direct contact is designed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a cold pressing forming device and a 45° inclined tee pipe fitting production process, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a 45° inclined tee pipe cold forming equipment, including an equipment frame, and also a demoulding device; wherein a vertical hydraulic press is fixedly passed through the top of the equipment frame, a vertical pressure rod is fixedly installed at the output end of the vertical hydraulic press, a mounting plate is slidably installed inside the equipment frame, an upper mold is fixedly installed below the mounting plate, a horizontal hydraulic press is fixedly installed at the bottom of the inner wall of the equipment frame, and a lower mold is fixedly installed at the bottom of the inner wall of the equipment frame; wherein the demoulding device includes a horizontal pressure rod, a cylinder, a sliding plate, a receiving rod, an exhaust pipe and a sliding baffle, and the vertical hydraulic press and the horizontal hydraulic press are started. The output end of the vertical hydraulic press moves downward to drive the vertical pressure rod to move downward, and the vertical pressure rod moves downward to drive the mounting plate to move downward. The transverse pressure rod is fixedly installed at the output end of the transverse hydraulic press, and the cylinder is fixedly installed on the top of the inner wall of the equipment frame. The sliding plate is slidably installed inside the cylinder, and the receiving rod is fixedly installed below the sliding plate. The exhaust pipe is fixedly passed through the inner and outer walls of the cylinder, and the sliding baffle is slidably installed on the inner wall of the cylinder. The gas inside the cylinder demolds the mold after cold pressing under the action of the exhaust pipe, which can effectively improve the demolding effect, reduce the damage caused during the demolding process, and reduce the loss of equipment and subsequent maintenance costs.

[0007] According to the above technical solution, an exhaust hole is opened on the surface of the lower mold, the exhaust pipe is connected to the exhaust hole, and an air inlet is opened on the surface of the sliding baffle. The sliding plate continues to move upward to contact and squeeze the sliding baffle to move upward, and the sliding baffle moves upward so that the air inlet on its surface is connected to the inlet of the exhaust pipe.

[0008] According to the above technical solution, the sliding plate is fixedly connected to the inner wall of the cylinder by a telescopic elastic rod, which can drive the sliding plate to reset; the sliding baffle is fixedly connected to the inner wall of the cylinder by a spring sheet, which can drive the sliding baffle to reset and re-block the exhaust pipe.

[0009] According to the above technical scheme, it also includes a protective device and a lubricating device, wherein the protective device includes a protective plate, a fixed plate, a movable plate, a window, a receiving plate, an L-shaped baffle, a limit cover and a button, and the pipe to be pressed is placed above the lower mold, and then the movable plate is moved, and the movable plate moves to contact the receiving plate, and the movable plate squeezes the L-shaped baffle to move downward while moving. The protective plate is fixedly mounted on the surface of the equipment frame, the fixed plate is fixedly mounted on the surface of the protective plate, the movable plate is slidably mounted on the surface of the fixed plate, the window is fixedly mounted on the surface of the movable plate, and the receiving plate is fixedly mounted on the surface of the protective plate. A slide groove 1 is opened on the surface of the protective plate, the L-shaped baffle is slidably mounted inside the slide groove 1, the limit cover is slidably mounted above the equipment frame, and the button is fixedly mounted above the equipment frame. The button is electrically connected to the vertical hydraulic motor, and the button is electrically connected to the horizontal hydraulic motor, which can effectively prevent the hydraulic device from being started due to accidental touch when the pipe to be pressed is placed, thereby causing safety hazards, and at the same time avoid foreign matter from affecting the processing process during cold pressing, thereby improving the efficiency of pipeline cold pressing and reducing safety hazards.

[0010] According to the above technical solution, the upper part of the L-shaped baffle rod is opened as an arc surface one, and the surface of the limiting cover is opened with a slot. The lower part of the L-shaped baffle rod contacts the slot. The movable plate moves to contact the arc surface one and squeezes the L-shaped baffle rod to move downward. The L-shaped baffle rod contacts the slot and realizes the limitation of the limiting cover.

[0011] According to the above technical solution, a clockwork spring 1 is arranged between the limit cover and the equipment frame, and the clockwork spring 1 can drive the limit cover to reset. A clockwork spring 2 is arranged between the L-shaped baffle rod and the slide groove 1, and the clockwork spring 2 can drive the L-shaped baffle rod to reset.

[0012] The L-shaped baffle plate is fixedly mounted on the upper surface of the movable plate, and the L-shaped baffle plate is fixedly mounted on the lower surface of the movable plate, and the lubricating oil in the oil storage frame is ejected from the movable plate to the lower surface of the movable plate.

[0013] According to the above technical solution, one end of the transverse moving rod away from the moving plate is opened as arc surface 2, and the transverse moving rod moves through arc surface 2 to contact and drive the L-shaped baffle to move. A pressure valve is arranged inside the nozzle, and a clockwork spring 3 is arranged between the L-shaped baffle and the L-shaped connecting plate, and the clockwork spring 3 can drive the L-shaped baffle to reset.

[0014] A production process of a 45° inclined tee pipe fitting cold press forming equipment, comprising:

[0015] Step 1: Start the vertical hydraulic press and the horizontal hydraulic press, and realize cold pressing of the pipeline to be pressed under the action of the vertical pressure rod and the horizontal pressure rod. After the cold pressing contact, the vertical pressure rod moves upward to drive the mounting plate to move upward;

[0016] Step 2: The mounting plate moves upward to contact and squeeze the receiving rod to move upward. The receiving rod moves upward to drive the sliding plate to move upward and squeeze the air inside the cylinder, so that the air pressure inside the cylinder increases;

[0017] Step 3: The sliding plate continues to move upward to contact and press the sliding baffle plate to move upward, and the sliding baffle plate moves upward so that the air inlet on its surface is connected with the inlet of the exhaust pipe;

[0018] Step 4: After the connection, the gas inside the cylinder will enter the exhaust hole on the surface of the lower mold through the exhaust pipe and be discharged, achieving the effect of demolding the mold after cold pressing, reducing equipment loss and subsequent maintenance costs.

[0019] The present invention provides a cold pressing forming equipment and a 45° inclined tee pipe fitting production process. It has the following beneficial effects:

[0020] (1) In the 45° inclined tee pipe cold pressing forming equipment, after the cold pressing is completed, the mounting plate moves upward under the action of the vertical hydraulic press to contact and squeeze the receiving rod to move upward. The receiving rod moves upward to drive the sliding plate to squeeze the air inside the cylinder. Under the action of the sliding baffle, the gas inside the cylinder enters the exhaust hole of the lower mold through the exhaust pipe and is discharged, thereby realizing demolding of the pipe fitting, which can effectively reduce the damage to the pipe fitting and the subsequent maintenance cost.

[0021] (2) The 45° inclined tee pipe cold pressing forming equipment, during cold pressing, blocks the cold pressing process by moving the movable plate, and at the same time, the movable plate moves through the L-shaped stop rod to release the limit on the limit cover, and then moves the limit cover and presses the button to start the hydraulic device, which can effectively prevent the hydraulic device from being started due to accidental touch when the pipe to be pressed is placed, thereby causing safety hazards, and at the same time, avoid foreign matter from affecting the processing process during cold pressing, thereby improving the efficiency of pipe cold pressing and reducing safety hazards.

[0022] (3) In the 45° inclined tee pipe cold forming equipment, the moving plate moves through the lateral moving rod to make the L-shaped baffle enter the movement track of the mounting plate, and drives the extrusion plate to move downward under the action of the mounting plate and the L-shaped connecting plate, and discharges the lubricating oil inside the oil storage frame to the surface of the lower mold for lubrication, thereby reducing the friction between the metal material and the mold, improving the quality and effect of the mold forming, and at the same time, the fixed spring and the driven plate can maintain the continuous discharge of the lubricating oil, further improving the effect of the mold cold forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the cross-sectional structure of the cylinder of the present invention;

[0026] Figure 4 For the present invention Figure 3 The enlarged structural diagram of part A in the middle;

[0027] Figure 5 It is a schematic diagram of the position structure of the protection plate and the lateral movement rod of the present invention;

[0028] Figure 6 This is a schematic diagram of the position structure of the limit cover and the button of the present invention;

[0029] Figure 7 This is a schematic diagram of the cross-sectional structure of the oil storage frame of the present invention;

[0030] Figure 8 For the present invention Figure 7 The enlarged structural diagram of part B is shown in the figure.

[0031] In the figure: 1. Equipment frame; 2. Vertical hydraulic press; 3. Vertical pressure rod; 4. Mounting plate; 5. Upper mold; 6. Horizontal hydraulic press; 7. Lower mold; 71. Exhaust hole; 81. Horizontal pressure rod; 82. Cylinder; 83. Sliding plate; 84. Receiver rod; 85. Exhaust pipe; 86. Sliding baffle; 861. Air inlet; 87. Telescopic spring rod; 88. Shrapnel; 91. Protective plate; 911. Slide groove 1; 92. Fixed plate; 93. Moving plate; 94. Window; 95. Receiver plate; 96. L-shaped baffle rod; 97. Limiting cover; 971. Card slot; 98. Button; 101. Oil storage frame; 102. Extrusion plate; 103. L-shaped connecting plate; 104. L-shaped baffle; 105. Horizontal moving rod; 106. Follower plate; 107. Nozzle; 108. Fixed spring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-6 An embodiment of the present invention is: a 45° inclined tee pipe cold forming equipment, including an equipment frame 1, and also including a demoulding device; wherein, a vertical hydraulic press 2 is fixedly penetrated on the top of the equipment frame 1, a vertical pressure rod 3 is fixedly installed on the output end of the vertical hydraulic press 2, a mounting plate 4 is slidably installed inside the equipment frame 1, an upper mold 5 is fixedly installed below the mounting plate 4, a horizontal hydraulic press 6 is fixedly installed on the bottom of the inner wall of the equipment frame 1, and a lower mold 7 is fixedly installed on the bottom of the inner wall of the equipment frame 1; wherein the demoulding device includes a horizontal pressure rod 81, a cylinder 82, a sliding plate 83, a receiving rod 84, an exhaust pipe 85 and a sliding baffle 86, the vertical hydraulic press 2 and the horizontal hydraulic press 6 are started, and the vertical hydraulic press 2 The output end moves downward, driving the vertical pressure rod 3 to move downward, and the vertical pressure rod 3 moves downward, driving the mounting plate 4 to move downward, the transverse pressure rod 81 is fixedly installed on the output end of the transverse hydraulic press 6, the cylinder 82 is fixedly installed on the top of the inner wall of the equipment frame 1, the sliding plate 83 is slidably installed inside the cylinder 82, the receiving rod 84 is fixedly installed below the sliding plate 83, the exhaust pipe 85 is fixedly passed through the inner and outer walls of the cylinder 82, and the sliding baffle 86 is slidably installed on the inner wall of the cylinder 82. The gas inside the cylinder 82 demolds the mold after cold pressing under the action of the exhaust pipe 85, which can effectively improve the demolding effect, reduce the damage caused during the demolding process, and reduce the loss of equipment and subsequent maintenance costs.

[0034] An exhaust hole 71 is provided on the surface of the lower mold 7, and the exhaust pipe 85 is connected to the exhaust hole 71. An air inlet 861 is provided on the surface of the sliding baffle 86. The sliding plate 83 continues to move upward to contact and squeeze the sliding baffle 86 to move upward. The sliding baffle 86 moves upward so that the air inlet 861 on its surface is connected to the entrance of the exhaust pipe 85.

[0035] The sliding plate 83 is fixedly connected to the inner wall of the cylinder 82 via a telescopic spring rod 87, which can drive the sliding plate 83 to reset. The sliding baffle 86 is fixedly connected to the inner wall of the cylinder 82 via a spring piece 88, which can drive the sliding baffle 86 to reset and re-block the exhaust pipe 85.

[0036] A production process of a 45° inclined tee pipe fitting cold press forming equipment, comprising:

[0037] Step 1: Start the vertical hydraulic press 2 and the horizontal hydraulic press 6, and realize cold pressing of the pipeline to be pressed under the action of the vertical pressing rod 3 and the horizontal pressing rod 81. After the cold pressing contact, the vertical pressing rod 3 moves upward to drive the mounting plate 4 to move upward;

[0038] Step 2: The mounting plate 4 moves upward to contact and squeeze the receiving rod 84 to move upward. The receiving rod 84 moves upward to drive the sliding plate 83 to move upward and squeeze the air inside the cylinder 82, so that the air pressure inside the cylinder 82 increases;

[0039] Step 3: The sliding plate 83 continues to move upward to contact and press the sliding baffle 86 to move upward. The sliding baffle 86 moves upward so that the air inlet 861 on its surface is connected with the inlet of the exhaust pipe 85;

[0040] Step 4: After the connection, the gas inside the cylinder 82 will enter the exhaust hole 71 on the surface of the lower mold 7 through the exhaust pipe 85 and be discharged, achieving the effect of demolding the mold after cold pressing, reducing equipment loss and subsequent maintenance costs.

[0041] When the present embodiment is working, the vertical hydraulic press 2 and the horizontal hydraulic press 6 are started, the output end of the vertical hydraulic press 2 moves downward to drive the vertical pressure rod 3 to move downward, the vertical pressure rod 3 moves downward to drive the mounting plate 4 to move downward, the mounting plate 4 moves downward to drive the upper mold 5 to move downward, and at the same time, the output end of the horizontal hydraulic press 6 moves to drive the horizontal pressure rod 81 to move, the horizontal pressure rod 81 and the upper mold 5 move to cold press the pipe to be pressed, and when the cold pressing is completed, the mounting plate 4 moves upward to contact and squeeze the receiving rod 84 to move upward, and the receiving rod 84 moves upward to drive the sliding plate 83 to move upward. The sliding plate 83 moves upward to squeeze the air inside the cylinder 82 and increase the internal air pressure. The sliding plate 83 continues to move upward to contact and squeeze the sliding baffle 86 to move upward. The sliding baffle 86 moves upward so that the air inlet 861 on its surface is connected with the inlet of the exhaust pipe 85, so that the gas inside the cylinder 82 enters the exhaust hole 71 on the surface of the lower mold 7 under the action of the exhaust pipe 85, and demolds the mold after cold pressing. It can effectively improve the demolding effect, reduce the damage caused during the demolding process, and reduce the loss of equipment and subsequent maintenance costs.

[0042] See also Figure 1-8On the basis of the above embodiment, another embodiment of the present invention further includes a protective device and a lubricating device, wherein the protective device includes a protective plate 91, a fixed plate 92, a movable plate 93, a viewing window 94, a receiving plate 95, an L-shaped stopper 96, a limit cover 97 and a button 98. The pipe to be pressed is placed above the lower mold 7, and then the movable plate 93 is moved. The movable plate 93 moves to contact the receiving plate 95. While the movable plate 93 moves, the L-shaped stopper 96 is squeezed to move downward. The protective plate 91 is fixedly mounted on the surface of the equipment frame 1, the fixed plate 92 is fixedly mounted on the surface of the protective plate 91, the movable plate 93 is slidably mounted on the surface of the fixed plate 92, and the viewing window 94 is fixedly mounted on the surface of the protective plate 91. It is fixedly mounted on the surface of the movable plate 93, the receiving plate 95 is fixedly mounted on the surface of the protective plate 91, a slide groove 911 is opened on the surface of the protective plate 91, an L-shaped baffle rod 96 is slidably mounted inside the slide groove 911, a limit cover 97 is slidably mounted on the top of the equipment frame 1, and a button 98 is fixedly mounted on the top of the equipment frame 1. The button 98 is electrically connected to the vertical hydraulic press 2, and the button 98 is electrically connected to the horizontal hydraulic press 6, which can effectively prevent the hydraulic device from being started due to accidental touch when the pipe to be pressed is placed, thereby causing safety hazards, and at the same time avoid foreign matter from affecting the processing process during cold pressing, thereby improving the efficiency of pipe cold pressing and reducing safety hazards.

[0043] The top of the L-shaped baffle rod 96 is opened as an arc surface 1, and the surface of the limiting cover 97 is opened with a slot 971. The bottom of the L-shaped baffle rod 96 contacts the slot 971, and the movable plate 93 moves to contact the arc surface 1 and squeezes the L-shaped baffle rod 96 to move downward. The L-shaped baffle rod 96 contacts the slot 971 and limits the limiting cover 97.

[0044] A spring 1 is arranged between the limit cover 97 and the equipment frame 1, and the spring 1 can drive the limit cover 97 to reset. A spring 2 is arranged between the L-shaped baffle rod 96 and the slide groove 1 911, and the spring 2 can drive the L-shaped baffle rod 96 to reset.

[0045] The lubrication device includes an oil storage frame 101, an extrusion plate 102, an L-shaped connecting plate 103, an L-shaped baffle 104, a transverse moving rod 105, a driven plate 106 and a nozzle 107. The moving plate 93 moves to drive the transverse moving rod 105 to move, the transverse moving rod 105 moves to contact and squeeze the L-shaped baffle 104 to move, and the L-shaped baffle 104 moves into the motion track of the mounting plate 4. The oil storage frame 101 is fixedly installed on the inner wall of the equipment frame 1, the extrusion plate 102 is slidably installed inside the oil storage frame 101, the L-shaped connecting plate 103 is fixedly installed above the extrusion plate 102, and the L-shaped baffle 104 slides. It is installed below the L-shaped connecting plate 103, the transverse moving rod 105 is fixedly installed on the surface of the moving plate 93, the driven plate 106 is slidably installed inside the oil storage frame 101, the nozzle 107 is fixedly penetrated through the inner and outer walls of the oil storage frame 101, the extrusion plate 102 and the driven plate 106 are fixedly connected by a fixed spring 108, the driven plate 106 moves downward to squeeze the lubricating oil inside the oil storage frame 101, so that it is sprayed onto the surface of the lower mold 7 through the nozzle 107, so that the pipeline to be pressed is lubricated during cold pressing, reducing the friction between the metal material and the mold, and improving the quality and effect of mold forming.

[0046] One end of the transverse moving rod 105 away from the moving plate 93 is provided with an arc surface 2. The transverse moving rod 105 moves through the arc surface 2 to contact and drive the L-shaped baffle 104 to move. A pressure valve is arranged inside the nozzle 107. A clockwork spring 3 is arranged between the L-shaped baffle 104 and the L-shaped connecting plate 103. The clockwork spring 3 can drive the L-shaped baffle 104 to reset.

[0047] When this embodiment is working: the pipe to be pressed is placed above the lower mold 7, and then the movable plate 93 is moved. The movable plate 93 moves to contact the receiving plate 95. The movable plate 93 moves and squeezes the L-shaped blocking rod 96 to move downward. The L-shaped blocking rod 96 moves downward to disengage from the slot 971 on the surface of the limiting cover 97 and release the limit on the limiting cover 97. After the limit is released, the limiting cover 97 is moved and the limit on the button 98 is released. Then, the button 98 is pressed to start the vertical hydraulic press 2 and the horizontal hydraulic press 6 and cold press the pipe to be pressed. This can effectively prevent the hydraulic device from being started due to accidental touch when the pipe to be pressed is placed, thereby causing a safety hazard. At the same time, it can prevent foreign matter from affecting the processing process during cold pressing, thereby improving the efficiency of pipe cold pressing and reducing safety hazards.

[0048] The movement of the movable plate 93 drives the lateral moving rod 105 to move, and the lateral moving rod 105 moves to contact and squeeze the L-shaped baffle 104 to move, and the L-shaped baffle 104 moves into the motion trajectory of the mounting plate 4, and the mounting plate 4 moves downward to contact and squeeze the L-shaped baffle 104 to move downward, and the L-shaped baffle 104 moves downward to drive the L-shaped connecting plate 103 to move downward, and the L-shaped connecting plate 103 moves downward to drive the extrusion plate 102 to move downward, and the extrusion plate 102 moves downward and drives the driven plate 106 to move downward under the action of the fixed spring 108, and the driven plate 106 moves downward to squeeze the lubricating oil inside the oil storage frame 101, so that it is sprayed to the surface of the lower mold 7 through the nozzle 107, so that the pipeline to be pressed is lubricated during cold pressing, thereby reducing the friction between the metal material and the mold, and improving the quality and effect of mold forming. At the same time, the fixed spring 108 and the driven plate 106 can maintain the continuous discharge of the lubricating oil, and further improve the effect of mold cold pressing.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A 45° inclined tee pipe cold forming device, comprising a device frame (1), characterized in that: It also includes a demoulding device, a protective device and a lubricating device; A vertical hydraulic press (2) is fixedly installed on the top of the equipment frame (1), a vertical pressure rod (3) is fixedly installed on the output end of the vertical hydraulic press (2), a mounting plate (4) is slidably installed inside the equipment frame (1), an upper mold (5) is fixedly installed below the mounting plate (4), a horizontal hydraulic press (6) is fixedly installed on the bottom of the inner wall of the equipment frame (1), and a lower mold (7) is fixedly installed on the bottom of the inner wall of the equipment frame (1); The demoulding device comprises a transverse pressure rod (81), a cylinder (82), a sliding plate (83), a receiving rod (84), an exhaust pipe (85) and a sliding baffle (86); the transverse pressure rod (81) is fixedly mounted on the output end of the transverse hydraulic press (6); the cylinder (82) is fixedly mounted on the top of the inner wall of the equipment frame (1); the sliding plate (83) is slidably mounted inside the cylinder (82); the receiving rod (84) is fixedly mounted below the sliding plate (83); the exhaust pipe (85) is fixedly mounted through the inner and outer walls of the cylinder (82); and the sliding baffle (86) is slidably mounted on the inner wall of the cylinder (82); The protective device comprises a protective plate (91), a fixed plate (92), a movable plate (93), a viewing window (94), a receiving plate (95), an L-shaped blocking rod (96), a limiting cover (97) and a button (98); the protective plate (91) is fixedly mounted on the surface of the equipment frame (1); the fixed plate (92) is fixedly mounted on the surface of the protective plate (91); the movable plate (93) is slidably mounted on the surface of the fixed plate (92); and the viewing window (94) is fixedly mounted on the surface of the movable plate (93). , the receiving plate (95) is fixedly mounted on the surface of the protective plate (91), a slide groove (911) is provided on the surface of the protective plate (91), the L-shaped blocking rod (96) is slidably mounted inside the slide groove (911), the limiting cover (97) is slidably mounted above the equipment frame (1), the button (98) is fixedly mounted above the equipment frame (1), the button (98) is electrically connected to the vertical hydraulic press (2), and the button (98) is electrically connected to the horizontal hydraulic press (6); The upper part of the L-shaped blocking rod (96) is provided with an arc surface 1, the surface of the limiting cover (97) is provided with a clamping groove (971), and the lower part of the L-shaped blocking rod (96) is in contact with the clamping groove (971); A spring 1 is provided between the limit cover (97) and the device frame (1), and a spring 2 is provided between the L-shaped blocking rod (96) and the first slide groove (911); The lubricating device comprises an oil storage frame (101), an extrusion plate (102), an L-shaped connecting plate (103), an L-shaped baffle plate (104), a transverse moving rod (105), a driven plate (106) and a nozzle (107); the oil storage frame (101) is fixedly mounted on the inner wall of the equipment frame (1); the extrusion plate (102) is slidably mounted inside the oil storage frame (101); the L-shaped connecting plate (103) is fixedly mounted above the extrusion plate (102); the L-shaped baffle plate (104) is slidably mounted below the L-shaped connecting plate (103); the transverse moving rod (105) is fixedly mounted on the surface of the moving plate (93); the driven plate (106) is slidably mounted inside the oil storage frame (101); the nozzle (107) is fixedly penetrated through the inner and outer walls of the oil storage frame (101); and the extrusion plate (102) and the driven plate (106) are fixedly connected via a fixing spring (108).

2. The 45° inclined tee pipe cold forming equipment according to claim 1 is characterized by: An exhaust hole (71) is provided on the surface of the lower mold (7), the exhaust pipe (85) is connected to the exhaust hole (71), and an air inlet (861) is provided on the surface of the sliding baffle (86).

3. The 45° inclined tee pipe cold forming equipment according to claim 2 is characterized by: The sliding plate (83) is fixedly connected to the inner wall of the cylinder (82) via a telescopic elastic rod (87), and the sliding baffle (86) is fixedly connected to the inner wall of the cylinder (82) via a spring sheet (88).

4. The 45° inclined tee pipe cold forming equipment according to claim 1, characterized in that: The end of the transverse moving rod (105) away from the moving plate (93) is provided with an arc surface 2, a pressure valve is arranged inside the nozzle (107), and a spring 3 is arranged between the L-shaped baffle plate (104) and the L-shaped connecting plate (103).

5. A production process, using the 45° inclined tee pipe cold pressing forming equipment according to claim 4, characterized in that: include: Step 1: Start the vertical hydraulic press (2) and the horizontal hydraulic press (6), and realize cold pressing of the pipeline to be pressed under the action of the vertical pressing rod (3) and the horizontal pressing rod (81). After the cold pressing contact, the vertical pressing rod (3) moves upward to drive the mounting plate (4) to move upward; Step 2: The mounting plate (4) moves upward to contact and squeeze the receiving rod (84) to move upward, and the receiving rod (84) moves upward to drive the sliding plate (83) to move upward and squeeze the air inside the cylinder (82), so that the air pressure inside the cylinder (82) increases; Step 3: The sliding plate (83) continues to move upward to contact and press the sliding baffle (86) to move upward, and the sliding baffle (86) moves upward so that the air inlet (861) on its surface is connected to the inlet of the exhaust pipe (85); Step 4: After the connection, the gas inside the cylinder (82) will enter the exhaust hole (71) on the surface of the lower mold (7) through the exhaust pipe (85) and be discharged, thereby achieving the effect of demolding the mold after cold pressing, reducing equipment loss and subsequent maintenance costs.

Images