Die casting device for bus duct processing
By introducing a pressure modification device and a spray device into the die-casting device, the bubble generation and flashing problems in the prior art are solved, and higher casting quality and production efficiency are achieved.
Patent Information
- Application Number
- CN202510507059.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2025-06-27
AI Technical Summary
In the existing die-casting process, the airtightness requirements are high and the vacuum environment is difficult to achieve, resulting in problems with bubble generation and flashing, affecting the production rate and casting quality.
A die-casting device for busbar trough processing is designed, using a pressure-revising device and a spraying device to control the air pressure of the air bag through a fan, form a flow channel to reduce air and flashes, and spray release agent during the release process by rotary spraying device to cool down.
It effectively reduces internal air and flashes, improves casting quality and production rate, simplifies the pickup and cooling process, and improves overall production efficiency.
Smart Images
Figure CN120205770A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of die casting, and particularly relates to a die casting device for busbar processing. Background Art
[0002] A busbar is an enclosed metal device composed of copper and aluminum busbars, used to distribute relatively high power to each component of a decentralized system. In indoor low-voltage power transmission trunk line engineering projects, it has increasingly replaced wire and cable. In the process of busbar processing, a die casting process is used to produce the metal plates of the busbar by die casting.
[0003] In the prior art, due to the airtightness requirements of the die casting process and the difficulty of achieving a vacuum environment, for die castings, the generation of air bubbles and the formation of flash have always been the directions for process improvement. The traditional technology reduces defective products by trimming, but at the same time reduces the production rate. At the same time, during the production process, taking out the parts, cooling, and spraying release agent lengthen the production process and affect the actual production rate. Summary of the Invention
[0004] In view of the deficiencies of the prior art, the technical solution adopted by the present invention to solve its technical problems is: a die casting device for busbar processing, including a frame, the outer surface of the frame is fixedly connected with a fixed mold, an elevating device is arranged above the fixed mold, the elevating device includes a fixed column, the outer surface of the fixed column is rotatably connected with a first moving rod, the outer surface of the first moving rod is rotatably connected with a second moving rod, spraying devices are arranged on both sides of the second moving rod, limiting blocks are arranged on both sides of the spraying devices, through holes are opened in the interior of the fixed mold, a pressure-changing device is arranged on the outer surface of the frame, a pipe channel is arranged inside the frame, an air chamber is arranged around the pipe channel, a blower is fixedly connected to the outer surface of the air chamber, the pressure-changing device includes a return spring, a baffle is fixedly connected to the outer surface of the return spring, a movable rod is rotatably and fixedly connected to the outer surface of the baffle, a push-pull rod is rotatably connected to the inner surface of the movable rod, an airbag is arranged between the push-pull rods, blocking blocks are arranged around the airbag, when the air pipe of the infusion pipe is blocked from ventilation, the internal air can be reduced at this time, the excess part will form a runner, reducing the trimming difficulty, improving the quality of the casting, and reducing the situation of flash. Due to the action of the external pressure on the airbag, the gas in the airbag diffuses outward through the air pipe, and a thrust will be generated on the runner formed between the through holes of the die casting during the diffusion process, making it easier for the die casting to be demolded.
[0005] Preferably, the outer surface of the fan is fixedly connected to the outer surface of the frame, the outer surface of the pipe channel is fixedly connected to the inner surface of the frame, the outer surface of the air chamber is fixedly connected to the inner surface of the frame, a liquid storage tank is fixedly connected to the outer surface of the pipe channel, a blocking valve is fixedly connected to the outer surface of the push-pull rod, a ventilation pipe is slidably connected to the outer surface of the blocking valve, the outer surface of the ventilation pipe is fixedly connected to the outer surface of the airbag, the airbag is in contact with the outer surface of the frame, the outer surface of the liquid storage tank is fixedly connected to the outer surface of the infusion pipe, and the outer surface of the airbag is in contact with the outer surface of the pipe channel to change the pressure outside the airbag. At this time, due to the inflow of external air and the change of the surrounding environmental pressure, the airbag gradually shrinks, expelling air. Before die casting starts, the air between the fixed mold and the frame is sent into the air chamber through the fan. At this time, due to the change of the external air pressure of the airbag, the airbag becomes shriveled, facilitating the entry of air.
[0006] Preferably, the spraying device includes a cross bar, a slider is fixedly connected to the outer surface of the cross bar, a water storage tank is fixedly connected to the outer surface of the cross bar, a limiting plate is fixedly connected to the outer surface of the water storage tank, a butterfly valve is rotatably connected to the inner surface of the water storage tank, an L-shaped rotating plate is fixedly connected to the outer surface of the butterfly valve, a limiting column is arranged below the L-shaped rotating plate, rotating devices are arranged on both sides of the limiting column, a water sprayer is arranged below the rotating device, and a demolding agent storage tank is arranged above the water sprayer. After die casting is completed, during the process of the fixed mold and the movable mold separating, the overall spraying device is driven to move downward by the lifting device.
[0007] Preferably, a limiting block is slidably connected to the outer surface of the slider, the outer surface of the limiting block is fixedly connected to the outer surface of the limiting column, the outer surface of the water storage tank is fixedly connected to the demolding agent storage tank, the outer surface of the water sprayer is fixedly connected to the outer surface of the water storage tank, and the outer surface of the rotating device is fixedly connected to the inner surface of the water storage tank. During the movement, since the descending L-shaped rotating plate is blocked by the limiting column, the L-shaped rotating plate and the butterfly valve rotate simultaneously. At this time, the butterfly valve moves, and the water in the water storage tank moves downward due to the action of gravitational potential energy.
[0008] Preferably, the rotating device includes a hollow cylinder, a cylindrical water baffle is slidably connected to the inner surface of the hollow cylinder, a motor is fixedly connected to the outer surface of the hollow cylinder, a driving gear is fixedly connected to the output end of the motor, a driven gear is meshed with the outer surface of the driving gear, a screw rod is fixedly connected to the outer surface of the driven gear, a rotating housing is arranged around the screw rod, an opening device is arranged inside the rotating housing, and a check valve is arranged inside the rotating housing. In the rotating device, due to the movement of the motor, the driving gear drives the driven gear to move, and the screw rod fixed on the driven gear generates a forward thrust.
[0009] Preferably, the outer surface of the check valve is fixedly connected to the inner surface of the rotating shell, the outer surface of the check valve is rotatably connected to the outer surface of the screw, the outer surface of the driven gear is rotatably connected to the inner surface of the cylindrical water baffle, the inner surface of the cylindrical water baffle is rotatably connected to the outer surface of the motor, and the front end of the rotating shell is provided with an opening device. In the process of spraying the release agent forward, the release agent will generate a force on the pressing ball due to the forward movement of the release agent, and the spring under the pressing ball will generate an outward force on the moving block, and the support block rotatably connected to the moving block will generate an outward thrust on the hose during the outward advancement of the moving block.
[0010] Preferably, the opening device includes a limiting cylinder, the inner surface of the limiting cylinder is slidably connected to a pressing ball, the outer surface of the pressing ball is fixedly connected to a moving block, the outer surface of the moving block is rotatably connected to a supporting block, and the outer surface of the supporting block is slidably connected to a hose. The release agent sprayed from the hose will increase its spraying range due to the outward expansion of the hose, producing a more obvious spraying effect, and combined with the above rotating device and the movement process of the spraying device, it will cover the entire plane of the fixed mold and the movable mold to complete the spraying of the release agent.
[0011] The beneficial effects of the present invention are as follows: 1. The present invention sets a pressure modification device. Before the die casting starts, the air between the fixed mold and the frame is sent into the air chamber through the fan. At this time, due to the change of the external air pressure of the airbag, the airbag becomes deflated. After the fixed mold and the movable mold are fitted, the fan is stopped. Since there is air inside the mold, the air inside the mold will transport the gas to the inside of the airbag along the vent pipe, so that the deflated airbag expands until it expands to the baffle. The baffle moves the movable rod, driving the push-pull rod, and the blocking valve fixed on the push-pull rod leaves, and the ventilation of the vent pipe is blocked. At this time, the internal air can be reduced, and the excess part will form a flow channel, which reduces the difficulty of construction, improves the quality of castings, and reduces flash.
[0012] 2. The present invention sets a pressure changing device. After the die-casting is completed, the air is delivered to the gap between the fixed mold and the frame through the fan to change the external pressure. At this time, the airbag gradually shrinks due to the inflow of outside air and the change of the surrounding pressure. The baffle position that was previously pushed open rebounds due to the reset spring, driving the movable rod. The moving movable rod drives the push-pull rod to expand outward. During the expansion process, the circular hole of the blocking valve moves to the middle of the vent pipe, so that the vent pipe can flow again. Due to the strong effect of the external pressure on the airbag, the gas in the airbag diffuses outward through the vent pipe. During the diffusion process, it will generate thrust on the flow channel formed between the through holes of the die-casting, making it easier to demold the die-casting.
[0013] 3. In the present invention, by providing a spraying device, when the die-casting is completed and the fixed die and the moving die are separated, the overall spraying device is driven to move downward by a lifting device. During the movement, since the descending L-shaped rotating plate is blocked by the limiting post, the L-shaped rotating plate and the butterfly valve rotate simultaneously. At this time, the butterfly valve moves, and the water in the water storage tank moves downward due to the action of gravitational potential energy. Due to the special shape of the cylindrical water baffle, the water flow falling from the gravitational potential energy will impact the blades on the cylindrical water baffle, causing the rotating device to rotate. In the rotating device, due to the movement of the motor, the driving gear drives the driven gear to move, and the screw fixed on the driven gear will generate a forward thrust. The release agent between the cylindrical water baffle and the rotating housing will be sprayed outward due to the rotation of the screw. Due to the combined effect of its rotating and descending movement processes, the spraying area is increased, enabling spraying to start at the moment when the die-casting is completed. At the same time, the water sprayer can spray the water falling from the gravitational potential energy outward to achieve the effect of cooling.
[0014] 4. In the present invention, when the screw moves and sprays the release agent forward, during the forward movement of the release agent, the release agent will exert a force on the pressing ball, and the spring under the pressing ball will exert an outward force on the moving block. The supporting block rotatably connected to the moving block will exert an outward thrust on the hose during the outward movement of the moving block. At this time, the release agent sprayed from the hose will increase its spraying range due to the outward expansion of the hose, producing a more obvious spraying effect. Combined with the movement processes of the above-mentioned rotating device and spraying device, it will cover the entire plane of the fixed die and the moving die to complete the spraying of the release agent. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is the front view of the present invention; Figure 2 is the sectional view of the present invention; Figure 3 is the structural schematic diagram of the lifting device of the present invention; Figure 4 is the structural schematic diagram of the frame of the present invention; Figure 5 is the structural schematic diagram of the die-changing device of the present invention; Figure 6 is the enlarged schematic diagram at A of the present invention; Figure 7 is the structural schematic diagram of the spraying device of the present invention; Figure 8 is the structural schematic diagram of the rotating device of the present invention; Figure 9 is the enlarged schematic diagram at B of the present invention; In the figure: 1, frame; 2, fixed mold; 3, lifting device; 4, fixed column; 5, first moving rod; 6, second moving rod; 7, spraying device; 8, limit block; 11, through hole; 12, pressure-changing device; 13, pipe channel; 14, air chamber; 15, fan; 16, liquid storage tank; 121, return spring; 122, baffle; 123, movable rod; 124, push-pull rod; 125, airbag; 126, stop block; 127, infusion tube; 1261, blocking valve; 1262, ventilation pipe; 70, cross bar; 71, slider; 72, water storage tank; 73, limit plate; 74, butterfly valve; 75, L-shaped rotating plate; 76, limit post; 77, rotating device; 78, water sprayer; 79, demoulding agent storage tank; 770, hollow cylinder; 771, motor; 772, driving gear; 773, driven gear; 774, screw rod; 775, opening device; 776, check valve; 777, rotating housing; 778, cylindrical water baffle; 7751, limit cylinder; 7752, pressing ball; 7753, moving block; 7754, support block; 7755, hose. Detailed implementation mode
[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes. The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations will be obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.
[0017] Embodiment: Please refer to Figure 1 - Figure 9, the present invention provides a technical solution: a die-casting device for busbar processing, including a frame 1, a fixed die 2 is fixedly connected to the outer surface of the frame 1, a lifting device 3 is arranged above the fixed die 2, the lifting device 3 includes a fixed column 4, a first moving rod 5 is rotatably connected to the outer surface of the fixed column 4, a second moving rod 6 is rotatably connected to the outer surface of the first moving rod 5, spraying devices 7 are arranged on both sides of the second moving rod 6, limiting blocks 8 are arranged on both sides of the spraying devices 7, through holes 11 are opened in the interior of the fixed die 2, a pressure-changing device 12 is arranged on the outer surface of the frame 1, a pipe channel 13 is arranged in the interior of the frame 1, an air chamber 14 is arranged around the pipe channel 13, a blower 15 is fixedly connected to the outer surface of the air chamber 14, the pressure-changing device 12 includes a return spring 121, a baffle 122 is fixedly connected to the outer surface of the return spring 121, a movable rod 123 is fixedly and rotatably connected to the outer surface of the baffle 122, a push-pull rod 124 is rotatably connected to the inner surface of the movable rod 123, an airbag 125 is arranged between the push-pull rods 124, blocking blocks 126 are arranged around the airbag 125, an infusion pipe 127 is fixedly connected to the outer surface of the blocking block 126, and air between the fixed die 2 and the frame 1 is sent into the air chamber 14 through the blower 15. At this time, due to the change in the external air pressure of the airbag 125, the airbag 125 becomes shriveled.
[0018] The outer surface of the blower 15 is fixedly connected to the outer surface of the frame 1, the outer surface of the pipe channel 13 is fixedly connected to the inner surface of the frame 1, the outer surface of the air chamber 14 is fixedly connected to the inner surface of the frame 1, a liquid storage tank 15 is fixedly connected to the outer surface of the pipe channel 13, a blocking valve 1261 is fixedly connected to the outer surface of the push-pull rod 124, a ventilation pipe 1262 is slidably connected to the outer surface of the blocking valve 1261, the outer surface of the ventilation pipe 1262 is fixedly connected to the outer surface of the airbag 125, and the airbag 125 is in contact with the outer surface of the frame 1. The outer surface of the liquid storage tank 16 is fixedly connected to the outer surface of the infusion pipe 127. The outer surface of the airbag 125 is in contact with the outer surface of the pipe channel 13, so as to reduce the internal air. The excess part will form a flow channel, reduce the construction difficulty, improve the quality of the casting, and reduce the situation of flash.
[0019] The spraying device 7 includes a cross bar 70. A slider 71 is fixedly connected to the outer surface of the cross bar 70. A water storage tank 72 is fixedly connected to the outer surface of the cross bar 70. A limiting plate 73 is fixedly connected to the outer surface of the water storage tank 72. A butterfly valve 74 is rotatably connected to the inner surface of the water storage tank 72. An L-shaped rotating plate 75 is fixedly connected to the outer surface of the butterfly valve 74. A limiting post 76 is arranged below the L-shaped rotating plate 75. Rotating devices 77 are arranged on both sides of the limiting post 76. A water sprayer 78 is arranged below the rotating devices 77. A demoulding agent storage tank is arranged above the water sprayer 78. When the die casting is completed and the fixed die 2 and the moving die are separated, the overall spraying device 7 is driven to move downward by the lifting device 3. During the movement, since the descending L-shaped rotating plate 75 will be blocked by the limiting post 76, the L-shaped rotating plate 75 and the butterfly valve 74 rotate simultaneously.
[0020] A limiting block 8 is slidably connected to the outer surface of the slider 71. The outer surface of the limiting block 8 is fixedly connected to the outer surface of the limiting post 76. The outer surface of the water storage tank 72 is fixedly connected to the demoulding agent storage tank 79. The outer surface of the water sprayer 78 is fixedly connected to the outer surface of the water storage tank 72. The outer surface of the rotating device 77 is fixedly connected to the inner surface of the water storage tank 72. The rotating device 77 includes a hollow cylinder 770. A cylindrical water baffle 778 is slidably connected to the inner surface of the hollow cylinder 770. A motor 771 is fixedly connected to the outer surface of the hollow cylinder 770. The output end of the motor 771 is fixedly connected to a driving gear 772. The outer surface of the driving gear 772 is meshed with a driven gear 773. A screw rod 774 is fixedly connected to the outer surface of the driven gear 773. A rotating housing 777 is arranged around the screw rod 774. An opening device 775 is arranged inside the rotating housing 777. A check valve 776 is arranged inside the rotating housing 777. Spraying can start at the moment when the die casting is completed. At the same time, the water sprayer 78 can spray the water that has fallen due to gravitational potential energy outward to achieve the effect of cooling.
[0021] The outer surface of the check valve 776 is fixedly connected to the inner surface of the rotating housing 777. The outer surface of the check valve 776 is rotatably connected to the outer surface of the screw 774. The outer surface of the driven gear 773 is rotatably connected to the inner surface of the cylindrical water baffle 778. The inner surface of the cylindrical water baffle 778 is rotatably connected to the outer surface of the motor 771. An opening device 775 is provided at the front end of the rotating housing 777. The opening device 775 includes a limiting cylinder 7751. A pressing ball 7752 is slidably connected to the inner surface of the limiting cylinder 7751. A moving block 7753 is fixedly connected to the outer surface of the pressing ball 7752. A supporting block 7754 is rotatably connected to the outer surface of the moving block 7753. A hose 7755 is slidably connected to the outer surface of the supporting block 7754. At this time, the release agent sprayed by the hose 7755 will increase its spraying range due to the outward expansion of the hose 7755, producing a more obvious spraying effect. Then, in cooperation with the movement process of the above-mentioned rotating device 77 and spraying device 7, it will cover the planes of the entire fixed mold 2 and moving mold, completing the spraying of the release agent.
[0022] Working principle: During use, by setting the pressure-changing device 12, before die-casting starts, the air between the fixed mold 2 and the frame 1 is sent through the air chamber 14 by the blower 15. At this time, due to the change in the external air pressure of the airbag 125, the airbag 125 becomes shriveled. After the fixed mold 2 and the moving mold are fitted, the blower 15 is stopped. Since there is air inside the mold, the air inside will transport the gas to the inside of the airbag 125 along the air pipe 1262, causing the shriveled airbag 125 to expand until it expands to the baffle 122. The baffle 122 moves the movable rod 123, driving the push-pull rod 124, and the blocking valve 1261 fixed on the push-pull rod 124 moves away, blocking the air pipe 1262 from ventilating. At this time, the internal air can be greatly reduced, and the excess part will form a runner, reducing the construction difficulty, improving the quality of the castings, and reducing the situation of flash.
[0023] During use, by setting the pressure-changing device 12, after die-casting is completed, the air is sent by the blower 15 to the gap position between the fixed mold 2 and the frame 1 to change the external pressure. At this time, due to the inflow of external air and the change in the surrounding environmental pressure, the airbag 125 gradually shrinks. The position of the previously pushed baffle 122 rebounds due to the return spring 121, driving the movable rod 123. The moving movable rod 123 drives the push-pull rod 124 to expand outwards. During the expansion process, the round hole of the blocking valve 1261 moves to the middle of the air pipe 1262, making the air pipe 1262 flow again. Due to the force of the external pressure on the airbag 125, the gas in the airbag 125 diffuses outwards along the air pipe 1262. During the diffusion process, a thrust will be generated on the runner formed by the die-casting part between the through holes 11, making it easier for the die-casting part to be demolded.
[0024] During use, by setting the spraying device 7, when the die-casting is completed and the fixed mold 2 and the moving mold separate, the overall spraying device 7 is driven downward by the lifting device 3. During the movement, since the descending L-shaped rotating plate 75 will be blocked by the limiting column 76, the L-shaped rotating plate 75 and the butterfly valve 74 will rotate simultaneously. At this time, the butterfly valve 74 moves, and the water in the water storage tank 72 moves downward due to the action of gravitational potential energy. Due to the special shape of the cylindrical water baffle 778, the water flow falling due to gravitational potential energy will impact the blades on the cylindrical water baffle 778, causing the rotating device 77 to rotate. In the rotating device 77, due to the movement of the motor 771, the driving gear 772 drives the driven gear 773 to move, and the screw 774 fixed on the driven gear 773 will generate a forward thrust. The mold release agent between the cylindrical water baffle 778 and the rotating housing 777 will be sprayed outward due to the rotation of the screw 774. Due to the combined effect of its rotating and descending movement processes, the spraying area is increased, enabling spraying to start at the moment when the die-casting is completed. At the same time, the water sprayer 78 can spray the water falling due to gravitational potential energy outward to achieve the effect of cooling.
[0025] During use, when the screw 774 moves and sprays the mold release agent forward, due to the forward movement of the mold release agent, the mold release agent will exert a force on the pressing ball 7752. The spring under the pressing ball 7752 will exert an outward acting force on the moving block 7753. The supporting block 7754 rotatably connected to the moving block 7753 will exert an outward thrust on the hose 7755 during the outward advancement of the moving block 7753. At this time, the mold release agent sprayed from the hose 7755 will increase its spraying range due to the outward expansion of the hose 7755, resulting in a more obvious spraying effect. Combining with the movement processes of the above rotating device 77 and the spraying device 7, it will cover the planes of the entire fixed mold 2 and the moving mold to complete the spraying of the mold release agent.
[0026] Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art without special instructions and limitations.
Claims
1. A die-casting device for processing a bus duct, comprising a frame (1), characterized in that: The outer surface of the frame (1) is fixedly connected to a fixed mold (2), a lifting device (3) is arranged above the fixed mold (2), the lifting device (3) comprises a fixed column (4), the outer surface of the fixed column (4) is rotatably connected to a first moving rod (5), the outer surface of the first moving rod (5) is rotatably connected to a second moving rod (6), spraying devices (7) are arranged on both sides of the second moving rod (6), and limit blocks (8) are arranged on both sides of the spraying device (7); A through hole (11) is provided inside the fixed mold (2); a pressure-changing device (12) is provided on the outer surface of the frame (1); a tube channel (13) is provided inside the frame (1); a wind chamber (14) is provided around the tube channel (13); a fan (15) is fixedly connected to the outer surface of the wind chamber (14); the pressure-changing device (12) comprises a return spring (121); a baffle (122) is fixedly connected to the outer surface of the return spring (121); a movable rod (123) is fixedly rotatably connected to the outer surface of the baffle (122); a push-pull rod (124) is rotatably connected to the inner surface of the movable rod (123); an air bag (125) is provided between the push-pull rods (124); blocks (126) are provided around the air bag (125); and an infusion tube (127) is fixedly connected to the outer surface of the block (126).
2. A die-casting device for bus duct processing according to claim 1, characterized in that: The outer surface of the fan (15) is fixedly connected to the outer surface of the frame (1), the outer surface of the tube channel (13) is fixedly connected to the inner surface of the frame (1), the outer surface of the wind chamber (14) is fixedly connected to the inner surface of the frame (1), and the outer surface of the tube channel (13) is fixedly connected to a liquid storage tank (15).
3. A die-casting device for bus duct processing according to claim 1, characterized in that: The outer surface of the push-pull rod (124) is fixedly connected to a blocking valve (1261), the outer surface of the blocking valve (1261) is slidably connected to a ventilation pipe (1262), the outer surface of the ventilation pipe (1262) is fixedly connected to the outer surface of the airbag (125), and the airbag (125) is in contact with the outer surface of the frame (1).
4. A die-casting device for bus duct processing according to claim 4, characterized in that: The outer surface of the liquid storage box (16) is fixedly connected to the outer surface of the infusion tube (127), and the outer surface of the air bag (125) is in contact with the outer surface of the tube channel (13).
5. The die-casting device for bus duct processing according to claim 1, characterized in that: The spraying device (7) comprises a cross bar (70), the outer surface of which is fixedly connected to a slider (71), the outer surface of which is fixedly connected to a water tank (72), the outer surface of which is fixedly connected to a limit plate (73), the inner surface of which is rotatably connected to a butterfly valve (74), the outer surface of which is fixedly connected to an L-shaped rotating plate (75), a limit column (76) being arranged below the L-shaped rotating plate (75), rotating devices (77) being arranged on both sides of the limit column (76), a water sprayer (78) being arranged below the rotating device (77), and a demoulding agent storage box (79) being arranged above the water sprayer (78).
6. A die-casting device for bus duct processing according to claim 5, characterized in that: The outer surface of the sliding block (71) is slidably connected to the limiting block (8), the outer surface of the limiting block (8) is fixedly connected to the outer surface of the limiting column (76), the outer surface of the water storage tank (72) is fixedly connected to the demoulding agent storage tank (79), the outer surface of the water sprayer (78) is fixedly connected to the outer surface of the water storage tank (72), and the outer surface of the rotating device (77) is fixedly connected to the inner surface of the water storage tank (72).
7. A die-casting device for bus duct processing according to claim 6, characterized in that: The rotating device (77) comprises a hollow cylinder (770), the inner surface of the hollow cylinder (770) is slidably connected to a cylindrical water baffle (778), the outer surface of the hollow cylinder (770) is fixedly connected to a motor (771), the output end of the motor (771) is fixedly connected to a driving gear (772), the outer surface of the driving gear (772) is meshingly connected to a driven gear (773), the outer surface of the driven gear (773) is fixedly connected to a screw (774), a rotating shell (777) is arranged around the screw (774), an opening device (775) is arranged inside the rotating shell (777), and a check valve (776) is arranged inside the rotating shell (777).
8. The die-casting device for bus duct processing according to claim 7, characterized in that: The outer surface of the check valve (776) is fixedly connected to the inner surface of the rotating housing (777), the outer surface of the check valve (776) is rotationally connected to the outer surface of the screw rod (774), the outer surface of the driven gear (773) is rotationally connected to the inner surface of the cylindrical water baffle plate (778), the inner surface of the cylindrical water baffle plate (778) is rotationally connected to the outer surface of the motor (771), and the front end of the rotating housing (777) is provided with an opening device (775).
9. A die-casting device for bus duct processing according to claim 8, characterized in that: The opening device (775) comprises a limiting cylinder (7751), the inner surface of the limiting cylinder (7751) is slidably connected to a pressing ball (7752), the outer surface of the pressing ball (7752) is fixedly connected to a moving block (7753), the outer surface of the moving block (7753) is rotatably connected to a supporting block (7754), and the outer surface of the supporting block (7754) is slidably connected to a hose (7755).