Die-casting forming die for engine throttle valve

Abstract

The invention relates to the technical field of throttle valve die-casting, in particular to an engine throttle valve die-casting forming die which comprises a supporting plate, the surface of the supporting plate is fixedly connected with a bottom plate, the interior of the bottom plate is fixedly connected with a feeding pipe, the surface of the supporting plate is rotatably connected with a first rotating shaft, and the surface of the first rotating shaft is fixedly connected with a movable plate. A cavity is formed in the center in each movable plate, the two movable plates are unfolded to form an inverted V shape, so that an open cavity is formed after the two movable plates are unfolded, an opening and closing mechanism is arranged at the upper end of the bottom plate, an exhaust mechanism is arranged in each movable plate, a speed reducing mechanism is arranged on the surface of each movable plate, and a pushing mechanism is arranged in each movable plate and close to the corresponding exhaust mechanism; the double movable plates are arranged to form an inverted V-shaped layout when the double movable plates are opened and closed, compressed gas in the first hollow groove can be exhausted from the second hollow groove while the pushing block slowly pushes the air valve to be demoulded, and the compressed gas exhausted from the second hollow groove can promote the demoulding of the throttle valve.

Description

Technical Field

[0001] The present invention relates to the technical field of throttle die-casting, and specifically relates to a die-casting mold for an engine throttle. Background Art

[0002] The die-casting mold for an engine throttle is an important device for machining and manufacturing throttles. Its design and manufacturing quality are directly related to the quality and performance of throttle products. During die-casting, molten metal is injected into this cavity and forms the finished product of the throttle after cooling. The main function of the die-casting mold is to provide a precise forming space for the molten metal, that is, the die-casting cavity of the throttle. This space ensures that the finished throttle product has the required shape, size, and precision. The design and manufacturing quality of the mold directly affect the quality and performance of the throttle product. Through the rapid opening and closing of the mold and the precise injection of metal, large-scale and high-efficiency production of throttles can be achieved.

[0003] However, the designs of some existing molds are too complex, resulting in increased manufacturing difficulty and cost. At the same time, it is not conducive to later maintenance and servicing. The design of the mold exhaust system is unreasonable, which may cause the gas to not be discharged smoothly during die-casting, and then defects such as air holes and shrinkage cavities are formed, affecting the quality of the casting. Moreover, the draft angle of the mold is too small or there is no draft angle, resulting in obstacles to the casting in the demolding direction, and the surface is easily scratched by the mold during demolding. In addition, the scratches such as indentation deformation, collision damage, or mold cracking on the mold core or mold wall will also affect the smooth demolding of the casting. The affinity between the die-casting alloy and the mold steel is relatively large, and it is easy to melt and weld at high temperatures, generating a large demolding resistance. If the casting is pushed to demold by the ejector pin when the casting still has a certain temperature, if the pushing speed of the ejector pin is relatively fast during this process, it will cause the casting to be indented or damaged, thus affecting the quality of the product. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a die-casting mold for an engine throttle.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an engine throttle die-casting mold, including a support plate, a bottom plate is fixedly connected to the surface of the support plate, a feed pipe is fixedly connected inside the bottom plate, a first rotating shaft is rotatably connected to the surface of the support plate, a movable plate is fixedly connected to the surface of the first rotating shaft, a cavity is formed in the center of the movable plate, and the two movable plates are unfolded into an inverted V shape. By optimizing the double-movable-plate structure design, an open cavity is formed after unfolding, so as to facilitate the smooth demolding and automatic blanking of the throttle assembly. An opening and closing mechanism for opening and closing the two movable plates is arranged at the upper end of the bottom plate, an exhaust mechanism for exhausting the air in the cavity inside the movable plate is arranged inside the movable plate, a deceleration mechanism for decelerating the unfolding of the two movable plates is arranged on the surface of the movable plate, and a pushing mechanism for demolding the throttle is arranged inside the movable plate near the exhaust mechanism.

[0006] Preferably, a feed port is formed at the lower end of the movable plate, an exhaust hole is arranged at the upper end of the movable plate, a first hollow groove is formed on the outer surface of the movable plate, a connecting groove is formed inside the movable plate and is communicated with the first hollow groove, a first hollow groove communicated with the connecting groove is formed inside the movable plate, a second hollow groove communicated with the connecting groove is formed inside the movable plate, inclined blocks are fixedly connected to both sides of the movable plate, the inner ring of a bearing is fixedly connected to one end of the first rotating shaft, the outer ring of the bearing is fixedly connected to a second rotating shaft, one end of the second rotating shaft is rotatably connected to the support plate, a first sliding rod is rotatably connected to the surface of the inclined block, a first spring is fixedly connected to one end of the first sliding rod, the outer part of one end of the first sliding rod is slidably connected to a guide rail, the center of the first spring is fixedly connected to the center of the guide rail, and a first fixing plate is fixedly connected to the surface of the support plate.

[0007] Preferably, the opening and closing mechanism includes a hydraulic cylinder, the non-output end of the hydraulic cylinder is fixedly installed on the bottom plate, the output end of the hydraulic cylinder is fixedly connected to a movable block, a second fixing plate is fixedly connected to the surface of the movable block, and a connecting rod is fixedly connected to the lower end of the movable block.

[0008] Preferably, the opening and closing mechanism further includes a roller, the roller is rotatably connected to the surface of the connecting rod, and the lower surface of the roller is attached to the inclined block.

[0009] Preferably, the exhaust mechanism includes a second sliding rod, the lower end of the second sliding rod is slidably connected to the movable plate, the lower end of the second sliding rod is fixedly connected to a third sliding rod, the lower end of the third sliding rod is fixedly connected to a first round block, and a second spring is fixedly connected to the upper end of the first round block.

[0010] Preferably, the exhaust mechanism further includes a second round block, the second spring is fixedly connected to the upper end of the second round block, and the second round block is fixedly connected to the movable plate.

[0011] Preferably, the speed reduction mechanism includes a sealing ring, the surface of the sealing ring is fixedly connected to the movable plate, a sleeve is fixedly connected to the inner surface of the sealing ring, an opening is formed inside the sleeve, and a piston is slidably connected inside the sleeve.

[0012] Preferably, the speed reduction mechanism further includes a fourth sliding rod, one end of the piston is fixedly connected to the fourth sliding rod, and one end of the fourth sliding rod is fixedly connected to an arc-shaped block.

[0013] Preferably, the pushing mechanism includes a fifth sliding rod, the upper end of the fifth sliding rod is fixedly connected to the arc-shaped block, the lower end of the fifth sliding rod is fixedly connected to a first sliding block, the lower end of the first sliding block is fixedly connected to a first baffle plate, the lower end of the first baffle plate is fixedly connected to a first compression spring, and the lower end of the first compression spring is fixedly connected to a second baffle plate.

[0014] Preferably, the pushing mechanism further includes a second sliding block, the lower end of the second baffle plate is fixedly connected to the second sliding block, the lower end of the second baffle plate is fixedly connected to a second compression spring, and the lower end of the second sliding block is fixedly connected to a pushing block.

[0015] Advantages of the present invention:

[0016] (1) For a die-casting mold for an engine throttle valve of the present invention, when the two movable plates are opened and closed, they are arranged in an inverted V shape, which facilitates the demolding and falling of the die-cast engine throttle valve. When the hydraulic cylinder moves downward, it will drive the two movable plates to close in the center. The closing of the two movable plates will tightly wrap the feed pipe in the feed port. The double movable plates are precisely clamped in a centrosymmetric manner to form a closed state, providing ideal working conditions for the subsequent die-casting process.

[0017] (2) For a die-casting mold for an engine throttle valve of the present invention, the structure provided drives the first round block to move downward while the hydraulic cylinder moves downward. The downward movement of the first round block will block the exhaust hole, facilitating the subsequent application of pressure by the feed pipe into the cavity for die-casting.

[0018] (3) The die-casting forming mold for the engine throttle of the present invention drives the piston to compress the air in the sleeve when the two movable plates are unfolded through the set structure, and the air in the sleeve will be discharged from the small holes. Since the diameter of the small holes is very small, the air in the sleeve will flow very slowly, so the piston will be compressed relatively slowly. Thus, when the two movable plates are about to be fully unfolded, the unfolding speed of the two movable plates will become very slow. By using the set structure when the two movable plates are about to be fully unfolded, the pushing block slowly pushes the just die-cast engine throttle. The slow pushing of the engine throttle by the pushing block can prevent the just die-cast engine throttle from being extruded and deformed. While the pushing block slowly pushes the engine throttle to demold, the compressed gas in the first hollow groove will be discharged from the second hollow groove, further promoting the demolding of the engine throttle from the mold cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the overall structure provided by the present invention;

[0021] Figure 2 It is a schematic diagram of the connection structure between the support plate and the bottom plate;

[0022] Figure 3 It is a schematic diagram of the connection structure between the hydraulic cylinder and the movable block;

[0023] Figure 4 It is a schematic diagram of the connection structure between the first spring and the guide rail;

[0024] Figure 5 It is a schematic diagram of the connection structure between the bearing and the second rotating shaft;

[0025] Figure 6 It is a schematic diagram of the second fixing plate structure;

[0026] Figure 7 It is a schematic diagram of the connection structure between the second sliding rod and the third sliding rod;

[0027] Figure 8 For Figure 5 The enlarged structure diagram of part A shown;

[0028] Figure 9 It is a schematic diagram of the first hollow groove structure;

[0029] Figure 10 It is a schematic diagram of the connection structure between the sealing ring and the sleeve;

[0030] Figure 11 It is a schematic diagram of the connection structure between the second sliding block and the pushing block.

[0031] In the figure: 100, support plate; 101, first rotating shaft; 102, inclined block; 103, movable plate; 1031, feed inlet; 1032, cavity; 1033, exhaust hole; 1034, first hollow groove; 1035, connecting groove; 1036, second hollow groove; 1037, third hollow groove; 104, bearing; 105, second rotating shaft; 106, first sliding rod; 107, first spring; 108, guide rail; 109, first fixing plate; 200, bottom plate; 300, opening and closing mechanism; 301, hydraulic cylinder; 302, movable block; 303, second fixing plate; 304, connecting rod; 305, roller; 400, exhaust mechanism; 401, second sliding rod; 402, third sliding rod; 403, first round block; 404, second spring; 405, second round block; 500, deceleration mechanism; 501, sealing ring; 502, sleeve; 503, opening; 504, piston; 505, fourth sliding rod; 506, arc block; 600, pushing mechanism; 601, fifth sliding rod; 602, first sliding block; 603, first baffle; 604, first compression spring; 605, second baffle; 606, second sliding block; 607, second compression spring; 608, pushing block; 700, feed pipe. Detailed implementation mode

[0032] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with the specific implementation mode.

[0033] As Figures 1 - 11 shown, a die-casting forming mold for an engine throttle of the present invention includes a support plate 100, a bottom plate 200 is fixedly connected to the surface of the support plate 100, a feed pipe 700 is fixedly connected inside the bottom plate 200, a first rotating shaft 101 is rotatably connected to the surface of the support plate 100, a movable plate 103 is fixedly connected to the surface of the first rotating shaft 101, a cavity 1032 is formed in the center of the movable plate 103, and the two movable plates 103 are unfolded into an inverted V shape. By optimizing the structural design of the double movable plates 103, an open cavity 1032 is formed after unfolding, so as to facilitate the smooth demolding and automatic blanking of the throttle assembly. An opening and closing mechanism 300 for opening and closing the two movable plates 103 is arranged at the upper end of the bottom plate 200. An exhaust mechanism 400 for exhausting the air in the cavity 1032 in the movable plate 103 is arranged inside the movable plate 103. A deceleration mechanism 500 for decelerating the unfolding of the two movable plates 103 is arranged on the surface of the movable plate 103. A pushing mechanism 600 for demolding the throttle is arranged inside the movable plate 103 near the exhaust mechanism 400.

[0034] Specifically, a feed inlet 1031 is provided at the lower end of the movable plate 103, an exhaust hole 1033 is provided at the upper end of the movable plate 103, a first hollow groove 1034 is formed on the outer surface of the movable plate 103, the first hollow groove 1034 formed on the outer surface of the movable plate 103 communicates with a connection groove 1035 inside the movable plate 103, a second hollow groove 1036 is formed inside the movable plate 103 and communicates with the connection groove 1035, a third hollow groove 1037 is formed inside the movable plate 103 at the upper end of the second hollow groove 1036, inclined blocks 102 are fixedly connected to both sides of the movable plate 103, one end of a first rotating shaft 101 is fixedly connected to the inner ring of a bearing 104, the outer ring of the bearing 104 is fixedly connected to a second rotating shaft 105, one end of the second rotating shaft 105 is rotatably connected to a support plate 100, a first sliding rod 106 is rotatably connected to the surface of the inclined block 102, a first spring 107 is fixedly connected to one end of the first sliding rod 106, one end of the first sliding rod 106 is slidably connected to the outside of a guide rail 108, the center of the first spring 107 is fixedly connected to the center of the guide rail 108, and a first fixing plate 109 is fixedly connected to the surface of the support plate 100.

[0035] In addition, the opening and closing mechanism 300 includes a hydraulic cylinder 301. The non-output end of the hydraulic cylinder 301 is fixedly installed on the bottom plate 200. The output end of the hydraulic cylinder 301 is fixedly connected with a movable block 302. The surface of the movable block 302 is fixedly connected with a second fixed plate 303. The lower end of the movable block 302 is fixedly connected with a connecting rod 304. The surface of the connecting rod 304 is rotatably connected with a roller 305. The lower surface of the roller 305 is in contact with the inclined block 102. When the two movable plates 103 are opened and closed, they are arranged in an inverted V shape. The two movable plates 103 rotate around the first rotating shaft 101 and the second rotating shaft 105 on a straight line. When the two movable plates 103 are opened and closed, they are in an inverted V shape. By optimizing the structural design of the double movable plates 103, an open cavity 1032 is formed after they are unfolded, so as to facilitate the smooth demolding and automatic blanking of the throttle valve assembly. At this time, the hydraulic cylinder 301 is started to move downward. The downward movement of the hydraulic cylinder 301 will drive the movable block 302 to move downward. The downward movement of the movable block 302 will drive the second fixed plate 303 to move downward. The downward movement of the movable block 302 will drive the connecting rod 304 to move downward. The downward movement of the connecting rod 304 will drive the roller 305 to move downward. The downward movement of the roller 305 will drive the inclined block 102 to move downward. The downward movement of the inclined block 102 will drive the two movable plates 103 to move downward. The two movable plates 103 pivot downward with the first rotating shaft 101 as the rotation center until they are completely closed to form a sealed space. The downward movement of the movable plate 103 will drive the first sliding rod 106 to move downward. The downward movement of the first sliding rod 106 will slide along the guide rail 108 and compress the first spring 107. The two movable plates 103 perform a vertical downward movement to ensure that they are centered and closed in the vertical plane. The closing of the two movable plates 103 will tightly wrap the feed pipe 700 in the feed port 1031. At this time, a certain amount of molten metal liquid is introduced into the feed pipe 700. The molten metal liquid inside the feed pipe 700 enters the cavity 1032 through the feed port 1031. At this time, the continuous downward movement of the hydraulic cylinder 301 will drive the first round block 403 to block the exhaust hole 1033, and then pressure is applied to the cavity 1032 through the feed pipe 700. By optimizing the structural design of the double movable plates 103, an open cavity 1032 is formed after they are unfolded, so as to facilitate the smooth demolding and automatic blanking of the throttle valve assembly. When the hydraulic cylinder 301 moves downward, it will drive the two movable plates 103 to be centered and closed. The closing of the two movable plates 103 will tightly wrap the feed pipe 700 in the feed port 1031. The double movable plates 103 are precisely molded in a central symmetry manner to meet the requirements of the subsequent die-casting process.

[0036] Further, the exhaust mechanism 400 includes a second sliding rod 401. The lower end of the second sliding rod 401 is slidably connected to the movable plate 103. A third sliding rod 402 is fixedly connected to the lower end of the second sliding rod 401. A first round block 403 is fixedly connected to the lower end of the third sliding rod 402. A second spring 404 is fixedly connected to the upper end of the first round block 403. A second round block 405 is fixedly connected to the upper end of the second spring 404. The second round block 405 is fixedly connected to the movable plate 103. When the second fixing plate 303 moves downward, it will drive the second sliding rod 401 to move downward. The downward movement of the second sliding rod 401 will drive the third sliding rod 402 to move downward. The downward movement of the third sliding rod 402 will drive the first round block 403 to move downward. With the arranged structure, when the hydraulic cylinder 301 moves downward, it will drive the first round block 403 to move downward. The downward movement of the first round block 403 will block the exhaust hole 1033, which is convenient for the subsequent feed pipe 700 to apply pressure to the inside of the cavity 1032 for die casting.

[0037] It should be noted that the deceleration mechanism 500 includes a sealing ring 501. The surface of the sealing ring 501 is fixedly connected to the movable plate 103. A sleeve 502 is fixedly connected to the inner surface of the sealing ring 501. An opening 503 is formed inside the sleeve 502. A piston 504 is slidably connected inside the sleeve 502. A fourth sliding rod 505 is fixedly connected to one end of the piston 504. An arc-shaped block 506 is fixedly connected to one end of the fourth sliding rod 505. When the hydraulic cylinder 301 moves upward, at this time the first spring 107 will drive the movable plate 103 to unfold. When the movable plate 103 unfolds, it will drive the arc-shaped block 506 to contact the first fixing plate 109. At this time, the arc-shaped block 506 will be squeezed and drive the fourth sliding rod 505 to move downward. The downward movement of the fourth sliding rod 505 will drive the piston 504 to move downward. The piston 504 is initially located at the opening 503. When the piston 504 moves downward and away from the opening 503, it will compress the air inside the sleeve 502. Several small holes are formed inside the bottom end of the sleeve 502. In this way, the air compressed by the piston 504 inside the sleeve 502 will be discharged through the small holes. Since the diameter of the small holes is very small, the air inside the sleeve 502 will flow very slowly. In this way, the piston 504 will be compressed relatively slowly, so that the two movable plates 103 will become very slow in the unfolding speed when they are about to be fully unfolded.

[0038] It is worth mentioning that the pushing mechanism 600 includes a fifth sliding rod 601. The upper end of the fifth sliding rod 601 is fixedly connected to the arc-shaped block 506. The lower end of the fifth sliding rod 601 is fixedly connected to a first sliding block 602. The lower end of the first sliding block 602 is fixedly connected to a first baffle 603. The lower end of the first baffle 603 is fixedly connected to a first compression spring 604. The lower end of the first compression spring 604 is fixedly connected to a second baffle 605. The lower end of the second baffle 605 is fixedly connected to a second sliding block 606. The lower end of the second baffle 605 is fixedly connected to a second compression spring 607. The lower end of the second sliding block 606 is fixedly connected to a pushing block 608. When the arc-shaped block 506 moves downward, it will drive the fifth sliding rod 601 to move downward. The downward movement of the fifth sliding rod 601 will drive the first sliding block 602 to move downward. The downward movement of the first sliding block 602 will drive the first baffle 603 to move downward. The downward movement of the first baffle 603 will compress the first compression spring 604. After the first baffle 603 compresses the first compression spring 604, it will drive the second baffle 605 to move downward. The downward movement of the second baffle 605 will compress the second compression spring 607. The elasticity of the second compression spring 607 is greater than that of the first compression spring 604. The first baffle 603 moves downward synchronously with the piston 504. When the piston 504 compresses the air inside the sleeve 502, the second baffle 605 moves downward. This can play a role in storing pressure for the air in the second hollow groove 1036, providing power for the subsequent engine throttle formed by air pushing. The downward movement of the second baffle 605 will drive the second sliding block 606 to move downward. The downward movement of the second sliding block 606 will drive the pushing block 608 to move downward. The cross-section of the pushing block 608 is trapezoidal. The bottom area of the pushing block 608 is large and blocks the second hollow groove 1036. When the pushing block 608 moves downward, it will push the engine throttle to demold from the cavity 1032. When the pushing block 608 moves downward, it will move away from the second hollow groove 1036. At this time, the compressed gas in the first hollow groove 1034 will be discharged from the lower end of the second hollow groove 1036 through the connecting groove 1035. The discharge of the compressed gas from the lower end of the second hollow groove 1036 will further promote the demolding of the engine throttle from the cavity 1032. With the adopted structure, when the two movable plates 103 are about to be fully unfolded, they will drive the pushing block 608 to slowly push the just die-cast engine throttle. The slow pushing of the engine throttle by the pushing block 608 can prevent the just die-cast engine throttle from being squeezed and deformed. While the pushing block 608 slowly pushes the engine throttle to demold, the compressed gas in the first hollow groove 1034 will be discharged from the second hollow groove 1036, which will further promote the demolding of the engine throttle from the cavity 1032.

[0039] Working principle: In the present invention, when the two movable plates 103 open and close, they are arranged in an inverted V shape. The two movable plates 103 rotate around the first rotating shaft 101 and the second rotating shaft 105 on a straight line. By optimizing the structural design of the double movable plates 103, an open cavity 1032 is formed after they are unfolded, which facilitates the smooth demolding and automatic blanking of the throttle valve assembly. When the mold of the present invention is in use, the hydraulic cylinder 301 is started to move downward. The downward movement of the hydraulic cylinder 301 will drive the movable block 302 to move downward. The downward movement of the movable block 302 will drive the second fixed plate 303 to move downward. The downward movement of the movable block 302 will drive the connecting rod 304 to move downward. The downward movement of the connecting rod 304 will drive the roller 305 to move downward. When the roller 305 moves downward, it will drive the inclined block 102 to move downward. The downward movement of the inclined block 102 will drive the two movable plates 103 to move downward. The two movable plates 103 pivot downward with the first rotating shaft 101 as the rotation center until they are completely closed to form a sealed space. The downward movement of the movable plate 103 will drive the first sliding rod 106 to move downward. The downward movement of the first sliding rod 106 will slide along the guide rail 108 and compress the first spring 107. The two movable plates 103 perform a vertical downward movement to ensure that they are centered and closed in the vertical plane. The closing of the two movable plates 103 will tightly wrap the feed pipe 700 in the feed port 1031. At this time, a certain amount of molten metal liquid is introduced into the interior of the feed pipe 700. The molten metal liquid inside the feed pipe 700 enters the interior of the cavity 1032 through the feed port 1031. At this time, if the hydraulic cylinder 301 continues to move downward, it will drive the first round block 403 to block the exhaust hole 1033. Then, pressure is applied to the interior of the cavity 1032 through the feed pipe 700. When the two movable plates 103 open and close, they are arranged in an inverted V shape. By optimizing the structural design of the double movable plates 103, an open cavity 1032 is formed after they are unfolded, which facilitates the smooth demolding and automatic blanking of the throttle valve assembly. When the hydraulic cylinder 301 moves downward, it will drive the two movable plates 103 to be centered and closed. The closing of the two movable plates 103 will tightly wrap the feed pipe 700 in the feed port 1031. The double movable plates 103 are precisely clamped in a centrosymmetric manner to adapt to the requirements of subsequent die-casting processes.

[0040] When the second fixed plate 303 moves downward, it will drive the second sliding rod 401 to move downward. The downward movement of the second sliding rod 401 will drive the third sliding rod 402 to move downward. The downward movement of the third sliding rod 402 will drive the first round block 403 to move downward; with the adopted structure, when the hydraulic cylinder 301 moves downward, it will drive the first round block 403 to move downward. The downward movement of the first round block 403 will block the exhaust hole 1033, which is convenient for subsequent pressure application to the interior of the cavity 1032 through the feed pipe 700 for die-casting.

[0041] When the hydraulic cylinder 301 moves upward, the first spring 107 will drive the movable plate 103 to unfold. When the movable plate 103 unfolds, it will drive the arc-shaped block 506 to contact the first fixed plate 109. At this time, the arc-shaped block 506 will be squeezed and drive the fourth sliding rod 505 to move downward. The downward movement of the fourth sliding rod 505 will drive the piston 504 to move downward. The piston 504 is initially at the opening 503. When the piston 504 moves downward and away from the opening 503, it will compress the air inside the sleeve 502. The downward movement of the piston 504 will compress the air inside the sleeve 502. Several small holes are opened inside the bottom end of the sleeve 502. In this way, the air compressed by the piston 504 in the sleeve 502 will be discharged from the small holes. Since the diameter of the small holes is very small, the air in the sleeve 502 will flow very slowly. In this way, the piston 504 will be compressed relatively slowly; thus, when the two movable plates 103 are about to be fully unfolded, the unfolding speed will become very slow.

[0042] While the arc-shaped block 506 moves downward, it drives the fifth sliding rod 601 to move downward. The downward movement of the fifth sliding rod 601 drives the first sliding block 602 to move downward. The downward movement of the first sliding block 602 drives the first baffle 603 to move downward. The downward movement of the first baffle 603 compresses the first compression spring 604. After the first baffle 603 moves downward and compresses the first compression spring 604, it drives the second baffle 605 to move downward. The downward movement of the second baffle 605 compresses the second compression spring 607. The elasticity of the second compression spring 607 is greater than that of the first compression spring 604. The first baffle 603 moves downward synchronously with the piston 504. After the piston 504 compresses the air inside the sleeve 502, the second baffle 605 moves downward. This can play a role in accumulating pressure for the air in the second hollow groove 1036, providing power for the subsequent engine throttle formed by air propulsion. The downward movement of the second baffle 605 drives the second sliding block 606 to move downward. The downward movement of the second sliding block 606 drives the pushing block 608 to move downward. The cross-section of the pushing block 608 is trapezoidal. The bottom area of the pushing block 608 is large and blocks the second hollow groove 1036. When the pushing block 608 moves downward, it pushes the engine throttle to be demolded from the cavity 1032. When the pushing block 608 moves downward, it moves away from the second hollow groove 1036. At this time, the compressed gas in the first hollow groove 1034 will be discharged from the lower end of the second hollow groove 1036 through the connecting groove 1035. The discharge of the compressed gas from the lower end of the second hollow groove 1036 further promotes the demolding of the engine throttle from the cavity 1032. The slow pushing of the engine throttle by the pushing block 608 can prevent the just die-cast engine throttle from being squeezed and deformed. While the pushing block 608 slowly pushes the engine throttle to be demolded, the compressed gas in the first hollow groove 1034 will be discharged from the second hollow groove 1036. The discharge of the compressed gas in the first hollow groove 1034 from the second hollow groove 1036 will further promote the demolding of the engine throttle from the cavity 1032.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A die-casting mold for an engine throttle, comprising a support plate (100), a bottom plate (200) being fixedly connected to the surface of the support plate (100), and a feed pipe (700) being fixedly connected inside the bottom plate (200), characterized in that: The surface of the support plate (100) is rotatably connected to a first rotating shaft (101), and the surface of the first rotating shaft (101) is fixedly connected to a movable plate (103), and a cavity (1032) is provided in the center of the movable plate (103). The two movable plates (103) are unfolded to form an inverted V shape. By optimizing the structural design of the double movable plates (103), an open cavity (1032) is formed after unfolding, thereby facilitating smooth demoulding and automatic blanking of the throttle assembly. The upper end of the bottom plate (200) is provided with An opening and closing mechanism (300) for opening and closing the two movable plates (103) is provided, an exhaust mechanism (400) for exhausting air from a cavity (1032) in the movable plate (103) is provided inside the movable plate (103), a deceleration mechanism (500) for decelerating the unfolding of the two movable plates (103) is provided on the surface of the movable plate (103), and a pushing mechanism (600) for demoulding the throttle is provided inside the movable plate (103) near the exhaust mechanism (400).

2. The die-casting mold for an engine throttle valve according to claim 1, characterized in that: The lower end of the movable plate (103) is provided with a feed port (1031), the upper end of the movable plate (103) is provided with an exhaust hole (1033), the outer surface of the movable plate (103) is provided with a first hollow groove (1034), the interior of the movable plate (103) is provided with a first hollow groove (1034) connected to the connecting groove (1035), the interior of the movable plate (103) is provided with a second hollow groove (1036) connected to the connecting groove (1035), the interior of the movable plate (103) is provided with a third hollow groove (1037) at the upper end of the second hollow groove (1036), and the two sides of the movable plate (103) are fixedly connected with tilting blocks (1034). 2), one end of the first rotating shaft (101) is fixedly connected to the inner ring of the bearing (104), the outer ring of the bearing (104) is fixedly connected to the second rotating shaft (105), one end of the second rotating shaft (105) is rotatably connected to the support plate (100), the surface of the tilting block (102) is rotatably connected to the first sliding rod (106), one end of the first sliding rod (106) is fixedly connected to the first spring (107), one end of the first sliding rod (106) is externally slidably connected to a guide rail (108), the center of the first spring (107) is fixedly connected to the center of the guide rail (108), and the surface of the support plate (100) is fixedly connected to the first fixed plate (109).

3. The die-casting mold for an engine throttle valve according to claim 2, characterized in that: The opening and closing mechanism (300) comprises a hydraulic cylinder (301), the non-output end of the hydraulic cylinder (301) is fixedly mounted on the bottom plate (200), the output end of the hydraulic cylinder (301) is fixedly connected to a movable block (302), the surface of the movable block (302) is fixedly connected to a second fixed plate (303), and the lower end of the movable block (302) is fixedly connected to a connecting rod (304).

4. The die-casting mold for an engine throttle valve according to claim 3, characterized in that: The opening and closing mechanism (300) further comprises a roller (305), the surface of the connecting rod (304) is rotatably connected to the roller (305), and the lower end surface of the roller (305) is in contact with the tilting block (102).

5. The die-casting mold for an engine throttle valve according to claim 4, characterized in that: The exhaust mechanism (400) comprises a second sliding rod (401), the lower end of the second sliding rod (401) is slidably connected to the movable plate (103), the lower end of the second sliding rod (401) is fixedly connected to a third sliding rod (402), the lower end of the third sliding rod (402) is fixedly connected to a first round block (403), and the upper end of the first round block (403) is fixedly connected to a second spring (404).

6. The die-casting mold for an engine throttle valve according to claim 5, characterized in that: The exhaust mechanism (400) further comprises a second round block (405), the upper end of the second spring (404) is fixedly connected to the second round block (405), and the second round block (405) is fixedly connected to the movable plate (103).

7. The die-casting mold for an engine throttle valve according to claim 6, characterized in that: The speed reduction mechanism (500) comprises a sealing ring (501), the surface of the sealing ring (501) is fixedly connected to the movable plate (103), the inner surface of the sealing ring (501) is fixedly connected to a sleeve (502), an opening (503) is provided inside the sleeve (502), and a piston (504) is slidably connected inside the sleeve (502).

8. The die-casting mold for an engine throttle valve according to claim 7, characterized in that: The speed reduction mechanism (500) further comprises a fourth sliding rod (505), one end of the piston (504) is fixedly connected to the fourth sliding rod (505), and one end of the fourth sliding rod (505) is fixedly connected to an arc block (506).

9. The die-casting mold for an engine throttle valve according to claim 8, characterized in that: The pushing mechanism (600) comprises a fifth sliding rod (601), the upper end of the fifth sliding rod (601) is fixedly connected to the arc block (506), the lower end of the fifth sliding rod (601) is fixedly connected to the first sliding block (602), the lower end of the first sliding block (602) is fixedly connected to the first baffle plate (603), the lower end of the first baffle plate (603) is fixedly connected to the first compression spring (604), and the lower end of the first compression spring (604) is fixedly connected to the second baffle plate (605).

10. The die-casting mold for an engine throttle valve according to claim 9, characterized in that: The pushing mechanism (600) further comprises a second sliding block (606), the lower end of the second baffle plate (605) is fixedly connected to the second sliding block (606), the lower end of the second baffle plate (605) is fixedly connected to a second compression spring (607), and the lower end of the second sliding block (606) is fixedly connected to a pushing block (608).

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