Pressure forming device for as-cast nodular iron casting with high yield strength and elongation

Abstract

The invention discloses a pressure forming device for an as-cast nodular iron casting with high yield strength and elongation, relates to the technical field of pressure forming of nodular iron castings, and aims to solve the technical problem that demolding is difficult due to the fact that a lubricant volatilizes and loses the lubrication effect due to the high temperature of the casting, the pressure forming device comprises a frame, and a hydraulic mechanism is arranged in the frame; the hydraulic mechanism comprises a plurality of hydraulic rods, a demolding unit and a stabilizing unit; the hydraulic rods are fixedly connected in holes in the top of the frame in a sleeved mode, the demolding unit is fixedly arranged at the bottom of the hydraulic mechanism, and the stabilizing unit is fixedly arranged at the top of the demolding unit. Water flow flows into the fixing frame by arranging the water pump, heat conduction can be conducted on a high-temperature casting through the heat conduction plate, heat absorption can be conducted on the heat conduction plate through the water flow, the effective cooling effect is achieved, the water pressure is increased, the heat conduction plate moves upwards, the casting in the lower mold is ejected out, and the rapid demolding effect is achieved. And the stability of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pressure forming of ductile iron castings, and more specifically to a pressure forming device for as-cast ductile iron castings with high yield strength and elongation. Background Art

[0002] Ductile iron is an important engineering material widely used in many fields such as machinery manufacturing, automobile industry, and construction. Due to its good mechanical properties, wear resistance, and casting properties, ductile iron parts play an irreplaceable role in the manufacture of many key components. However, ductile iron parts produced by traditional casting methods often find it difficult to simultaneously meet the requirements of high yield strength and elongation in the cast state.

[0003] At present, when using a pressure forming device to cast ductile iron parts, the lubricant evaporates due to the high temperature of the casting and loses its lubricating effect, making it difficult to demold. In view of this, we propose a pressure forming device for as-cast high yield strength and elongation ductile iron parts. Summary of the invention

[0004] The purpose of the present invention is to provide a pressure forming device for as-cast high yield strength and elongation ductile iron castings to solve the technical problem that the high temperature of the castings causes the lubricant to volatilize and lose its lubricating effect, resulting in difficulty in demoulding.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a pressure forming device for as-cast high yield strength and elongation ductile iron castings, comprising a frame, wherein a hydraulic mechanism is arranged inside the frame;

[0006] The hydraulic mechanism comprises a plurality of hydraulic rods, a demoulding unit and a stabilizing unit; the plurality of hydraulic rods are fixedly sleeved in the upper holes on the top of the frame, the demoulding unit is fixedly arranged at the bottom of the hydraulic mechanism, and the stabilizing unit is fixedly arranged at the top of the demoulding unit;

[0007] The output ends of the several hydraulic rods are fixedly connected to the moving module by the first bolts. The inner wall on one side of the frame is symmetrically structured and fixedly connected to two slide rails, and the moving module is slidably connected to the slide rails. The bottom of the moving module is fixedly connected to the upper mold, and the bottom inner wall of the frame is fixedly connected to a plurality of first limit rods, and the first limit rods are distributed in a square array. The several first limit rods are movably sleeved in the upper holes of the moving module. The invention arranges a water pump to flow water into the interior of the fixed frame, and the heat conduction plate can be used to conduct heat to the high-temperature casting, and the water flow can be used to absorb heat to the heat conduction plate, thereby achieving an effective cooling effect. The water pressure is increased to move the heat conduction plate upward to eject the casting in the lower mold, thereby achieving a quick demolding effect, which is beneficial to improving the stability of the device.

[0008] Preferably, the demoulding unit comprises a water pump, the water pump is fixedly connected to one side of the bottom of the frame, a fixing frame is fixedly connected to the inner wall of the bottom of the frame, and the first limiting rod passes through the fixing frame.

[0009] Preferably, a plurality of second limit rods are fixedly connected to the inner wall of the bottom of the fixing frame, and the second limit rods are distributed in a square array, a through hole is opened on one side of the fixing frame, and a first pipe is fixedly connected to the output end of the water pump, and the first pipe is fixedly connected to the through hole.

[0010] Preferably, a bearing frame is fixedly sleeved on the inner wall of the fixing frame, a heat conducting plate is movably connected to the top of the plurality of second limit rods, and the heat conducting plate is in movably contact with the bearing frame, and a lower mold is fixedly connected to the top of the fixing frame, and the lower mold fits with the heat conducting plate.

[0011] Preferably, the bottom of the heat conducting plate is fixedly connected to a limiting frame, and a water inlet groove is provided at the bottom of the heat conducting plate.

[0012] Preferably, the stabilizing unit comprises a plurality of articulated frames, wherein the plurality of articulated frames are fixedly connected to the top of the fixed frame and are distributed in a square array, and the inner walls on both sides of the articulated frames are movably connected with pressure plates via first insertion rods.

[0013] Preferably, a fixing plate is fixedly connected to the top of the pressing plate, and a plurality of fixing rods are fixedly connected to the side surface of the lower mold, and the fixing rods are distributed in a square array.

[0014] Preferably, the fixing rod is in movably contact with the fixing plate, and a plurality of notches are provided at the bottom of the lower mold, and the notches correspond to the positions of the pressing plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention arranges a water pump to flow water into the interior of the fixed frame, and can conduct heat to the high-temperature casting through the heat conduction plate, and can absorb heat from the heat conduction plate through the water flow, thereby achieving an effective cooling effect. By increasing the water pressure, the heat conduction plate moves upward, and the casting in the lower mold is ejected, thereby achieving a rapid demoulding effect, which is beneficial to improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 is a schematic diagram of the three-dimensional structure of the present invention, to illustrate the three-dimensional structure of the demoulding unit;

[0019] Figure 3 It is a schematic cross-sectional view of the overall structure of the present invention;

[0020] Figure 4It is a schematic diagram of a three-dimensional exploded structure of the present invention, to illustrate the three-dimensional structure of the heat conducting plate;

[0021] Figure 5 It is a schematic diagram of a three-dimensional exploded structure of the present invention, to illustrate the three-dimensional structure of the demoulding unit;

[0022] Figure 6 For the present invention Figure 5 A in the figure is an enlarged structural diagram.

[0023] Explanation of the numbers in the figure: 1. frame; 2. hydraulic mechanism; 201. hydraulic rod; 202. moving module; 203. slide rail; 204. upper mold; 205. first limiting rod; 3. demoulding unit; 301. water pump; 302. fixed frame; 303. second limiting rod; 304. through hole; 305. first pipeline; 306. bearing frame; 307. heat conduction plate; 307a. limiting frame; 307b. water inlet trough; 308. lower mold; 4. stabilizing unit; 401. articulated frame; 402. pressure plate; 403. fixed plate; 404. fixed rod; 405. notch. DETAILED DESCRIPTION

[0024] like Figures 1 to 6 As shown, the present invention relates to a pressure forming device for a cast high yield strength and elongation ductile iron casting, comprising a frame 1, wherein a hydraulic mechanism 2 is arranged inside the frame 1;

[0025] The hydraulic mechanism 2 includes a plurality of hydraulic rods 201, a demoulding unit 3 and a stabilizing unit 4; the plurality of hydraulic rods 201 are fixedly sleeved in the upper holes on the top of the frame 1, the demoulding unit 3 is fixedly arranged at the bottom of the hydraulic mechanism 2, and the stabilizing unit 4 is fixedly arranged at the top of the demoulding unit 3;

[0026] The output ends of the plurality of hydraulic rods 201 are fixedly connected to the mobile module 202 through the first bolts. The inner wall on one side of the frame 1 is symmetrically fixedly connected to two slide rails 203, and the mobile module 202 is slidably connected to the slide rails 203. The bottom of the mobile module 202 is fixedly connected to the upper mold 204. The bottom inner wall of the frame 1 is fixedly connected to a plurality of first limiting rods 205, and the first limiting rods 205 are distributed in a square array. The plurality of first limiting rods 205 are movably sleeved in the upper holes of the mobile module 202. The present invention arranges a water pump 301 to flow water into the interior of the fixed frame 302, and through the heat conducting plate 307, the high-temperature casting can be heated. Heat conduction, and through water flow, the heat conducting plate 307 can be absorbed to achieve an effective cooling effect, and the heat conducting plate 307 can be moved upward by increasing the water pressure to eject the casting in the lower mold 308, thereby achieving a quick demoulding effect, which is beneficial to improving the stability of the device. When in use, the required casting melt is first placed in the lower mold 308, and then the hydraulic rod 201 is operated through the hydraulic system. The hydraulic rod 201 pushes the moving module 202 to move downward, and the moving module 202 can provide a stable working environment through the slide rail 203 and the first limit rod 205. The upper mold 204 is matched with the lower mold 308 for pressure molding.

[0027] In an embodiment of the present invention, the demoulding unit 3 includes a water pump 301, which is fixedly connected to one side of the bottom of the frame 1. The inner wall of the bottom of the frame 1 is fixedly connected to a fixing frame 302, and the first limiting rod 205 passes through the fixing frame 302. The inner wall of the bottom of the fixing frame 302 is fixedly connected to a plurality of second limiting rods 303, and the second limiting rods 303 are distributed in a square array. A through hole 304 is provided on one side of the fixing frame 302. The output end of the water pump 301 is fixedly connected to a first pipe 305, and the first pipe 305 is fixedly connected to the through hole 304. A bearing frame 306 is fixedly sleeved on the inner wall of the fixing frame 302, and a plurality of second limiting rods 303 are movably connected to the top of the guide rod 306. The heat plate 307 is provided, and the heat conducting plate 307 is in active contact with the bearing frame 306. The top of the fixing frame 302 is fixedly connected with a lower mold 308, and the lower mold 308 is matched with the heat conducting plate 307. After the casting is formed, the heat on the casting is transferred to the heat conducting plate 307, and then transferred to the water in the fixing frame 302 by the heat conducting plate 307, so as to realize the heat dissipation function. After passing through the external control system, the water pump 301 is operated, and the water flows from the first pipe 305 into the fixing frame 302, so that the water pressure inside the fixing frame 302 is increased, and the heat conducting plate 307 moves upward through the second limiting rod 303, and the casting formed in the lower mold 308 is ejected, so as to realize the function of rapid mold removal.

[0028] As another embodiment of the present invention, the bottom of the heat conducting plate 307 is fixedly connected to a limiting frame 307 a , and a water inlet groove 307 b is provided at the bottom of the heat conducting plate 307 .

[0029] As another embodiment of the present invention, the stabilizing unit 4 includes a plurality of articulated frames 401, which are fixedly connected to the top of the fixed frame 302, and the articulated frames 401 are distributed in a square array. The inner walls on both sides of the articulated frames 401 are movably connected with a pressure plate 402 through a first insertion rod. A fixed plate 403 is fixedly connected to the top of the pressure plate 402. A plurality of fixed rods 404 are fixedly connected to the side surface of the lower mold 308, and the fixed rods 404 are distributed in a square array. The fixed rods 404 are movably contacted with the fixed plate 403. A plurality of notches 405 are provided at the bottom of the lower mold 308, and the notches 405 correspond to the positions of the pressure plate 402. During long-term use, the pressure plate 402 is pressed by the lower mold 308, so that the fixed plate 403 is tilted through the first insertion rod and stuck on the side surface of the fixed rod 404, thereby achieving the stability of the lower mold 308.

[0030] Working principle: This embodiment provides a pressure forming device for as-cast high yield strength and elongation ductile iron castings. When in use, the required casting melt is first placed in the lower mold 308, and then the hydraulic rod 201 is operated through the hydraulic system. The hydraulic rod 201 pushes the moving module 202 to move downward, and the moving module 202 can provide a stable working environment through the slide rail 203 and the first limit rod 205. The upper mold 204 is matched with the lower mold 308 for pressure forming. After the casting is formed, the heat on the casting is transferred to the heat conducting plate 307, and then the heat conducting plate 307 conducts heat to the casting. The heat is delivered to the water in the fixing frame 302 to realize the heat dissipation function, and after passing through the external control system, the water pump 301 is put into operation, and the water flows from the first pipe 305 into the inside of the fixing frame 302, so that the water pressure inside the fixing frame 302 increases, and the heat conduction plate 307 moves upward through the second limiting rod 303, and the casting formed in the lower mold 308 is ejected, so as to realize the function of rapid mold removal. During long-term use, the pressing plate 402 is pressed by the lower mold 308, so that the fixing plate 403 is tilted through the first insertion rod and stuck on the side surface of the fixing rod 404, so as to realize the stability of the lower mold 308.

[0031] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A pressure forming device for as-cast high yield strength and elongation ductile iron parts, characterized in that: It comprises a frame (1), wherein a hydraulic mechanism (2) is arranged inside the frame (1); The hydraulic mechanism (2) comprises a plurality of hydraulic rods (201), a demoulding unit (3) and a stabilizing unit (4); the plurality of hydraulic rods (201) are fixedly sleeved in the upper holes on the top of the frame (1), the demoulding unit (3) is fixedly arranged at the bottom of the hydraulic mechanism (2), and the stabilizing unit (4) is fixedly arranged at the top of the demoulding unit (3); The output ends of the plurality of hydraulic rods (201) are fixedly connected to a moving module (202) via a first bolt; the inner wall of one side of the frame (1) is symmetrically structured and fixedly connected to two slide rails (203); the moving module (202) is slidably connected to the slide rails (203); the bottom of the moving module (202) is fixedly connected to an upper mold (204); the bottom inner wall of the frame (1) is fixedly connected to a plurality of first limiting rods (205); the first limiting rods (205) are distributed in a square array; and the plurality of first limiting rods (205) are movably sleeved in the upper holes of the moving module (202).

2. A pressure forming device for as-cast high yield strength and elongation ductile iron parts according to claim 1, characterized in that: The demoulding unit (3) comprises a water pump (301), the water pump (301) is fixedly connected to one side of the bottom of the frame (1), the inner wall of the bottom of the frame (1) is fixedly connected to a fixing frame (302), and the first limiting rod (205) passes through the fixing frame (302).

3. A pressure forming device for as-cast high yield strength and elongation ductile iron parts according to claim 2, characterized in that: A plurality of second limiting rods (303) are fixedly connected to the inner wall of the bottom of the fixing frame (302), and the second limiting rods (303) are distributed in a square array. A through hole (304) is provided on one side of the fixing frame (302). A first pipe (305) is fixedly connected to the output end of the water pump (301), and the first pipe (305) is fixedly connected to the through hole (304).

4. A pressure forming device for as-cast high yield strength and elongation ductile iron parts according to claim 3, characterized in that: The inner wall of the fixed frame (302) is fixedly sleeved with a bearing frame (306), the tops of the plurality of second limit rods (303) are movably connected with a heat conducting plate (307), and the heat conducting plate (307) is in movably contact with the bearing frame (306), and the top of the fixed frame (302) is fixedly connected with a lower mold (308), and the lower mold (308) is fitted with the heat conducting plate (307).

5. A pressure forming device for as-cast high yield strength and elongation ductile iron parts according to claim 4, characterized in that: The bottom of the heat conducting plate (307) is fixedly connected to a limiting frame (307a), and the bottom of the heat conducting plate (307) is provided with a water inlet groove (307b).

6. A pressure forming device for as-cast high yield strength and elongation ductile iron parts according to claim 5, characterized in that: The stabilizing unit (4) comprises a plurality of articulated frames (401), wherein the plurality of articulated frames (401) are fixedly connected to the top of a fixed frame (302), and the articulated frames (401) are distributed in a square array, and the inner walls on both sides of the articulated frames (401) are movably connected to a pressure plate (402) via a first insertion rod.

7. A pressure forming device for as-cast high yield strength and elongation ductile iron parts according to claim 6, characterized in that: The top of the pressing plate (402) is fixedly connected to a fixing plate (403), and the side surface of the lower mold (308) is fixedly connected to a plurality of fixing rods (404), and the fixing rods (404) are distributed in a square array.

8. A pressure forming device for as-cast high yield strength and elongation ductile iron parts according to claim 7, characterized in that: The fixing rod (404) is in active contact with the fixing plate (403), and a plurality of notches (405) are provided at the bottom of the lower mold (308), and the positions of the notches (405) and the pressing plate (402) correspond.

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