Automatic demolding device for heat-resistant and wear-resistant casting

By designing the molding and demolding components, and utilizing rapid cooling with cold water and the power of water vapor expansion, combined with gear transmission, automatic demolding is achieved, solving the problem of high cost of existing devices and realizing rapid molding and low-cost demolding.

CN120394814AActive Publication Date: 2025-08-01TAIXINGJINNIUZHUGANGJIAN CO LTD
View PDF 7 Cites 0 Cited by

Patent Information

Application Number
CN202510898392.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-01
Publication Date
2025-08-01
Estimated Expiration
2045-07-01

AI Technical Summary

Technical Problem

Existing automatic demolding devices are costly and not suitable for small and medium-sized workpiece manufacturing enterprises.

Method used

The design employs a mold assembly and a demolding assembly, utilizing rapid cooling with cold water and the power provided by water vapor expansion, combined with gear transmission to achieve automatic demolding, thereby reducing equipment costs.

Benefits of technology

It enables rapid prototyping and low-cost automatic demolding, reduces mold damage, improves production efficiency, and lowers casting production costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120394814A_ABST
    Figure CN120394814A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of metal casting, and discloses a heat-resistant and wear-resistant casting automatic demolding device which comprises a casting mold assembly, the bottom of the casting mold assembly is movably connected with a frame assembly, one side of the frame assembly is movably connected with a demolding assembly, and the casting mold assembly comprises a casting assembly. The top of the casting assembly is fixedly connected with a steam bin, one side of the casting assembly is fixedly connected with a pulley assembly, the other side of the casting assembly is fixedly connected with a rack, the top of the steam bin is movably sleeved with a feeding assembly, and one side of the rack is in meshed connection with a first gear. The side face of the top end of the feeding assembly is fixedly sleeved with a connecting frame, a back pipeline of the casting assembly is connected with a water conveying pipe, a back pipeline of the steam bin is connected with a conveying air pipe, the frame assembly comprises a connecting frame, and the inner side of one side of the connecting frame is fixedly connected with a sliding rail block. And rapid forming of the metal solution is facilitated, and high equipment cost is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of metal casting, and more particularly to an automatic demoulding device for heat-resistant and wear-resistant casting. Background Art

[0002] Casting molds are important process equipment in industrial manufacturing, mainly used to obtain parts with specific structural shapes. Mold casting involves injecting molten metal or alloy into the mold, allowing it to cool and solidify in the cavity of the mold, thereby forming a part with the same shape as the mold. Then, the part is removed from the mold and necessary cleaning and processing are carried out. This process of removing the formed part from the mold is the demoulding process. Nowadays, most of the demoulding processes of castings rely on automated devices. In an automatic demoulding device, when the casting cools to a sufficient temperature, the control system issues an instruction, and the driving device starts to work. Under the action of the driving device, the ejection mechanism ejects the casting from the mold. After the casting is ejected, it can be conveyed to the next process for further processing through a conveying device.

[0003] The control system of the automatic demoulding device is responsible for receiving operation instructions, controlling the actions of the driving device, and monitoring the entire demoulding process. It even relies on components such as sensors and controllers to monitor the temperature change of the mold to achieve automated and intelligent operations, which makes the overall cost of the automatic demoulding device relatively high, increasing the operating cost of the enterprise and being not applicable to small and medium-sized workpiece production enterprises. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic demoulding device for heat-resistant and wear-resistant casting to solve the problems existing in the above-mentioned background art.

[0005] To achieve the above object, the present invention provides the following technical solution: An automatic demolding device for heat-resistant and wear-resistant casting, including a casting mold assembly, the bottom of the casting mold assembly is movably connected to a frame assembly, one side of the frame assembly is movably connected to a demolding assembly, the casting mold assembly includes a casting assembly, the top of the casting assembly is fixedly connected to a steam chamber, one side of the casting assembly is fixedly connected to a pulley assembly, the other side of the casting assembly is fixedly connected to a rack, the top of the steam chamber is movably sleeved with a feeding assembly, one side of the rack is meshed with a first gear, the side of the top end of the feeding assembly is fixedly sleeved with a connection frame, the back of the casting assembly is connected to a transmission water pipe through a pipeline, and the back of the steam chamber is connected to a transmission air pipe through a pipeline. The frame assembly includes a connection frame, the inner side of one side of the connection frame is fixedly connected to a slide rail block, the other side of the connection frame is rotationally connected to a first gear, the demolding assembly includes a cylinder, the inside of the cylinder is movably sleeved with a piston, the bottom of the piston is fixedly connected to a second spring, the bottom of the second spring is fixedly connected to a mounting base plate, the bottom of the cylinder is fixedly connected to a mounting base plate, the top of the piston is fixedly connected to a connecting piece, the side of the connecting piece is rotationally sleeved with a first connecting rod, both ends of the side of the first connecting rod are fixedly connected to a first connecting strip, the top ends of the two first connecting strips are fixedly connected to a second connecting rod, and one end of the second connecting rod is fixedly connected to a second gear.

[0006] Further, the casting assembly includes an injection mold, both ends of the wall cavity of the injection mold are fixedly connected with connection blocks, the tops of the two connection blocks are fixedly connected with first springs, the tops of the two first springs are fixedly connected with annular sheets, and the top of the injection mold is fixedly connected with a steam chamber.

[0007] Further, the feeding assembly includes a feeding pipe, the top of the steam chamber is movably sleeved with a feeding pipe, and the bottom of the feeding pipe is fixedly sleeved with an upper top plate.

[0008] Further, the bottom of the connection frame is fixedly connected with a mounting base plate, the middle of the top of the mounting base plate is fixedly connected with a lower support plate, one end of the top of the mounting base plate is fixedly connected with a water pump, the bottom of one side of the water pump is connected to a water inlet pipe through a pipeline, and the back of the water pump is connected to a transmission water pipe through a pipeline.

[0009] Further, the side of the second gear is meshed with a first gear, the back of the second gear is rotationally connected to an intermediate rotating shaft, one side of the intermediate rotating shaft is fixedly connected with a second connecting strip, one end of the second connecting strip is fixedly connected with a connection frame, and the bottom end of the back of the cylinder is connected to a transmission air pipe through a pipeline.

[0010] Further, the wall shell of the injection mold is hollow to form an inner cavity, and the size of the annular sheet is the same as the size of the wall cavity of the injection mold.

[0011] Furthermore, the bottom area of the upper top plate is the same as the area inside the injection mold.

[0012] Furthermore, the size of the lower support plate is the same as that of the upper top plate, and the side surface of the lower support plate is movably sleeved on the bottom of the injection mold.

[0013] Furthermore, the second connecting rod is fixedly connected to the edge position on the front surface of the second gear.

[0014] Technical effects and advantages of the present invention: 1. By providing a casting mold assembly in the present invention, the wall shell of the injection mold is hollow. The feeding pipe transports the molten metal solution into the interior of the injection mold, and then water is injected into the wall cavity of the injection mold through the transmission water pipe. On the one hand, the injected cold water has a cooling effect on the casting to make it quickly formed. On the other hand, the cold water quickly vaporizes when encountering the high temperature of the metal solution, forming a large amount of water vapor, which makes the air pressure in the wall cavity of the injection mold rise. The water vapor expands to push open the annular piece, and the water vapor enters the steam chamber to provide power for the demolding assembly, which is beneficial to promoting the rapid forming of the metal solution and avoiding expensive equipment costs.

[0015] 2. By providing a demolding assembly in the present invention, one end of the transmission air pipe is connected to the steam chamber, and the other end is connected to the cylinder. The steam in the steam chamber is transported into the cylinder. The steam entering the cylinder pushes the piston upward. The top of the piston is connected to the connecting piece. Under the action of the first connecting rod and the second connecting rod, the second gear rotates. The second gear meshes with the first gear, and correspondingly, the first gear also rotates. The first gear meshes with the rack to move the casting assembly upward, while the feeding assembly remains stationary. The upper top plate presses down the casting to demold it. When the steam in the steam chamber is used up, the piston is pulled back to its original position by the second spring. Similarly, the casting assembly also returns to its original position, which is beneficial to reducing mold damage, improving production efficiency, and reducing the production cost of the casting. Description of the drawings

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a front view structural schematic diagram of the casting mold assembly of the present invention; Figure 3 is a rear view structural schematic diagram of the casting mold assembly of the present invention; A Figure 4 is a front sectional view structural schematic diagram of the casting assembly of the present invention; Figure 5 is a structural schematic diagram of the frame assembly of the present invention; Figure 6 is a front sectional view structural schematic diagram of the demolding assembly of the present invention; Figure 7 is a rear view structural schematic diagram of the demolding assembly of the present invention.

[0017] The reference numerals are: 1, casting mold assembly; 101, casting assembly; 1011, injection mold; 1012, connecting block; 1013, first spring; 1014, annular plate; 102, steam chamber; 103, pulley assembly; 104, rack; 105, feeding assembly; 1051, feeding pipe; 1052, upper top plate; 106, transfer water pipe; 107, transfer air pipe; 2, frame assembly; 201, connecting frame; 202, slide rail block; 203, first gear; 204, mounting base plate; 205, lower support plate; 206, water pump; 207, water inlet pipe; 3, demolding assembly; 301, cylinder; 302, piston; 303, second spring; 304, connecting member; 305, first connecting rod; 306, first connecting strip; 307, second connecting rod; 308, second gear; 309, intermediate rotating shaft; 310, second connecting strip. Detailed implementation mode

[0018] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. In addition, the forms of each structure described in the following embodiments are only examples. An automatic demolding device for heat-resistant and wear-resistant casting involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0019] Refer to Figure 1 , the present invention provides an automatic demolding device for heat-resistant and wear-resistant casting, including a casting mold assembly 1. The bottom of the casting mold assembly 1 is movably connected to a frame assembly 2, and one side of the frame assembly 2 is movably connected to a demolding assembly 3.

[0020] In this embodiment, it should be specifically supplemented that the casting mold assembly 1 uses cold water to cool the casting on the one hand to make it quickly form, and on the other hand, the cold water quickly vaporizes when encountering the high temperature of the molten metal solution, forming a large amount of water vapor, providing power for the demolding assembly 3, which is beneficial to promoting the rapid forming of the molten metal solution and avoiding expensive equipment costs. The demolding assembly 3 is beneficial to reducing mold damage, improving production efficiency, and reducing the production cost of castings. The specific structures and working principles of the above components will be described in detail later.

[0021] Refer to Figure 2, the mold assembly 1 includes a casting assembly 101. A steam chamber 102 is fixedly connected to the top of the casting assembly 101. A pulley assembly 103 is fixedly connected to one side of the casting assembly 101. A rack 104 is fixedly connected to the other side of the casting assembly 101. A feed assembly 105 is movably sleeved on the top of the steam chamber 102. A first gear 203 is meshed and connected to one side of the rack 104. A connection frame 201 is fixedly sleeved on the side of the top end of the feed assembly 105.

[0022] Referring to Figure 3 , a transfer water pipe 106 is connected to the back of the casting assembly 101 through a pipe. A transfer gas pipe 107 is connected to the back of the steam chamber 102 through a pipe.

[0023] Referring to Figure 4 , the casting assembly 101 includes an injection mold 1011. Connecting blocks 1012 are fixedly connected to both ends of the wall cavity of the injection mold 1011. First springs 1013 are fixedly connected to the tops of the two connecting blocks 1012. Annular plates 1014 are fixedly connected to the tops of the two first springs 1013. A steam chamber 102 is fixedly connected to the top of the injection mold 1011. A feed pipe 1051 is movably sleeved on the top of the steam chamber 102. An upper top plate 1052 is fixedly sleeved on the bottom of the feed pipe 1051.

[0024] Specifically, it should be noted in this embodiment that the wall shell of the injection mold 1011 is hollow to form an inner cavity. The size of the annular plate 1014 is the same as the size of the wall cavity of the injection mold 1011. The bottom area of the upper top plate 1052 is the same as the area inside the injection mold 1011. The feed pipe 1051 transports the molten metal solution into the inside of the injection mold 1011. Cold water is injected into the wall cavity of the injection mold 1011 through the transfer water pipe 106. On the one hand, the injected cold water cools the casting to make it quickly form. On the other hand, the cold water quickly vaporizes when it encounters the high temperature of the metal solution, forming a large amount of water vapor, which increases the air pressure in the wall cavity of the injection mold 1011. The water vapor expands and pushes open the annular plate 1014. The water vapor enters the steam chamber 102 to provide power for the demoulding assembly 3, which is beneficial to promoting the rapid forming of the metal solution and avoiding expensive equipment costs.

[0025] Referring to Figure 5, the frame component 2 includes a connection frame 201. A slide rail block 202 is fixedly connected to the inner side of one side of the connection frame 201. A first gear 203 is rotatably connected to the other side of the connection frame 201. An installation bottom plate 204 is fixedly connected to the bottom of the connection frame 201. A lower support plate 205 is fixedly connected to the middle of the top of the installation bottom plate 204. A water pump 206 is fixedly connected to one end of the top of the installation bottom plate 204. A water inlet pipe 207 is connected to the bottom of one side of the water pump 206 through a pipe. A transmission water pipe 106 is connected to the back of the water pump 206 through a pipe.

[0026] Specifically, in this embodiment, it should be noted that the size of the lower support plate 205 is the same as that of the upper top plate 1052, and the bottom of the injection mold 1011 is movably sleeved on the side of the lower support plate 205.

[0027] Refer to Figure 6 , the demolding component 3 includes a cylinder 301. A piston 302 is movably sleeved inside the cylinder 301. A second spring 303 is fixedly connected to the bottom of the piston 302. The bottom of the second spring 303 is fixedly connected to the installation bottom plate 204. The bottom of the cylinder 301 is fixedly connected to the installation bottom plate 204. A connecting piece 304 is fixedly connected to the top of the piston 302. A first connecting rod 305 is rotatably sleeved on the side of the connecting piece 304. First connecting strips 306 are fixedly connected to both ends of the side of the first connecting rod 305. A second connecting rod 307 is fixedly connected to the tops of the two first connecting strips 306. A second gear 308 is fixedly connected to one end of the second connecting rod 307. The first gear 203 is meshed with the side of the second gear 308.

[0028] Specifically, in this embodiment, it should be noted that the second connecting rod 307 is fixedly connected to the edge position on the front of the second gear 308. When the piston 302 moves upward, the connecting piece 304 pushes the first connecting rod 305, the first connecting strips 306, and the second connecting rod 307 to make the second gear 308 rotate.

[0029] Refer to Figure 7 , a middle rotating shaft 309 is rotatably connected to the back of the second gear 308. A second connecting strip 310 is fixedly connected to one side of the middle rotating shaft 309. One end of the second connecting strip 310 is fixedly connected to the connection frame 201. A transmission air pipe 107 is connected to the bottom end of the back of the cylinder 301 through a pipe.

[0030] In this embodiment, it should be specifically supplemented that one end of the transfer air pipe 107 is connected to the steam chamber 102, and the other end is connected to the cylinder 301. The steam in the steam chamber 102 is transferred into the cylinder 301. The steam entering the cylinder 301 pushes the piston 302 upward. The top of the piston 302 is connected to the connecting member 304. Under the action of the lower support plate 205 and the second connecting rod 307, the second gear 308 rotates. The second gear 308 meshes with the first gear 203, and correspondingly, the first gear 203 also rotates. The first gear 203 meshes with the rack 104 to move the casting assembly 101 upward, while the feeding assembly 105 remains stationary. The upper top plate 1052 presses down the casting to demold it. When the steam in the steam chamber 102 is used up, the piston 302 resets under the pull of the second spring 303. Similarly, the casting assembly 101 also resets, which is beneficial to reducing die damage, improving production efficiency, and reducing the production cost of castings.

[0031] The working principle of the present invention: The molten metal solution is transported into the interior of the injection mold 1011 through the feed pipe 1051, and water is injected into the wall cavity of the injection mold 1011 through the transfer water pipe 106. On the one hand, the injected cold water has a cooling effect on the casting to enable it to quickly solidify. On the other hand, the cold water quickly vaporizes when it encounters the high temperature of the metal solution, forming a large amount of water vapor, which increases the air pressure in the wall cavity of the injection mold 1011. The water vapor expands and flushes open the annular piece 1014, and the water vapor enters the steam chamber 102 to provide power for the demolding assembly 3, which is beneficial to promoting the rapid forming of the metal solution and avoiding expensive equipment costs.

[0032] One end of the transfer air pipe 107 is connected to the steam chamber 102, and the other end is connected to the cylinder 301. The steam in the steam chamber 102 is transferred into the cylinder 301. The steam entering the cylinder 301 pushes the piston 302 upward. The top of the piston 302 is connected to the connecting member 304. Under the action of the lower support plate 205 and the second connecting rod 307, the second gear 308 rotates. The second gear 308 meshes with the first gear 203, and correspondingly, the first gear 203 also rotates. The first gear 203 meshes with the rack 104 to move the casting assembly 101 upward, while the feeding assembly 105 remains stationary. The upper top plate 1052 presses down the casting to demold it. When the steam in the steam chamber 102 is used up, the piston 302 resets under the pull of the second spring 303. Similarly, the casting assembly 101 also resets, which is beneficial to reducing die damage, improving production efficiency, and reducing the production cost of castings.

[0033] The following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and defined, the terms "installed", "connected", and "linked" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. The terms "up", "down", "left", "right", etc. are only used to indicate the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change; Second: In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the usual designs. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic demoulding device for heat-resistant and wear-resistant casting, comprising a casting mould assembly (1), characterized in that, The bottom of the mold assembly (1) is movably connected to the frame assembly (2), and one side of the frame assembly (2) is movably connected to the demoulding assembly (3). The mold assembly (1) includes a casting assembly (101), the top of the casting assembly (101) is fixedly connected to the steam bin (102), one side of the casting assembly (101) is fixedly connected to the pulley assembly (103), and the other side of the casting assembly (101) is fixedly connected to the rack (104). The top of the steam bin (102) is movably connected to the feed assembly (105), one side of the rack (104) is meshedly connected to the first gear (203), and the side surface of the top of the feed assembly (105) is fixedly connected to the connecting frame (201). The back pipe of the casting assembly (101) is connected to the transmission water pipe (106), and the back pipe of the steam bin (102) is connected to the transmission air pipe (107). The frame assembly (2) includes a connecting frame (201), and the connecting frame (201 ) is fixedly connected to a slide block (202) on the inner side of one side, and a first gear (203) is connected to the rotating shaft on the other side of the connecting frame (201). The demoulding component (3) includes a cylinder (301), a piston (302) is movably sleeved on the inner side of the cylinder (301), a second spring (303) is fixedly connected to the bottom of the piston (302), the bottom of the second spring (303) is fixedly connected to the mounting base (204), the bottom of the cylinder (301) is fixedly connected to the mounting base (204), the top of the piston (302) is fixedly connected to a connecting member (304), the side of the connecting member (304) is rotatably sleeved with a first connecting rod (305), both ends of the side of the first connecting rod (305) are fixedly connected to a first connecting strip (306), the tops of the two first connecting strips (306) are fixedly connected to a second connecting rod (307), and one end of the second connecting rod (307) is fixedly connected to a second gear (308).

2. The automatic demolding device for heat-resistant and wear-resistant casting according to claim 1, characterized in that: The casting assembly (101) comprises an injection mold (1011), both ends of the wall cavity of the injection mold (1011) are fixedly connected to connection blocks (1012), the tops of the two connection blocks (1012) are fixedly connected to first springs (1013), the tops of the two first springs (1013) are fixedly connected to annular sheets (1014), and the top of the injection mold (1011) is fixedly connected to a steam bin (102).

3. An automatic demoulding device for heat-resistant and wear-resistant casting according to claim 2, characterized in that: The feed assembly (105) comprises a feed pipe (1051), the top of the steam bin (102) is movably sleeved with the feed pipe (1051), and the bottom of the feed pipe (1051) is fixedly sleeved with an upper top plate (1052).

4. An automatic demoulding device for heat-resistant and wear-resistant casting according to claim 3, characterized in that: The bottom of the connection box (201) is fixedly connected with a mounting base plate (204). The middle of the top of the mounting base plate (204) is fixedly connected with a lower support plate (205). One end of the top of the mounting base plate (204) is fixedly connected with a water pump (206). The bottom of one side of the water pump (206) is connected with a water inlet pipe (207) through a pipeline. The back of the water pump (206) is connected with a transmission water pipe (106) through a pipeline.

5. An automatic demoulding device for heat-resistant and wear-resistant casting according to claim 1, characterized in that: A first gear (203) is meshed with the side of the second gear (308). The back of the second gear (308) is rotatably connected with an intermediate rotating shaft (309). One side of the intermediate rotating shaft (309) is fixedly connected with a second connecting strip (310). One end of the second connecting strip (310) is fixedly connected with a connection box (201). The bottom end of the back of the air cylinder (301) is connected with a transmission air pipe (107) through a pipeline.

6. The automatic demoulding device for heat-resistant and wear-resistant casting according to claim 2, wherein: The wall shell of the injection mold (1011) is hollow to form an inner cavity. The size of the annular sheet (1014) is the same as that of the wall cavity of the injection mold (1011).

7. The automatic demoulding device for heat-resistant and wear-resistant casting according to claim 3, characterized in that: The bottom area of the upper top plate (1052) is the same as the area inside the injection mold (1011).

8. An automatic demoulding device for heat-resistant and wear-resistant casting according to claim 4, characterized in that: The size of the lower support plate (205) is the same as that of the upper top plate (1052). The side of the lower support plate (205) is movably sleeved on the bottom of the injection mold (1011).

9. An automatic demoulding device for heat-resistant and wear-resistant casting according to claim 1, characterized in that: The second connecting rod (307) is fixedly connected to the edge position on the front of the second gear (308).

Citation Information

Patent Citations

  • Injection mold with rapid forming function

    CN111300772A

  • Forming device and forming process based on metal casting

    CN114888262A

  • Aluminum-based intermediate alloy casting molding device

    CN118492315A

  • Casting mold of special-shaped casting

    CN211515990U

  • Demoulding device for autoclaved aerated concrete block

    CN220052258U