Die for gray iron casting based on nodular cast iron

Abstract

The utility model relates to the technical field of dies, and discloses a die for gray iron castings based on nodular cast iron, which comprises a base, a lower shell is fixedly connected to the upper surface of the base, an inner cavity is fixedly connected to the interior of the lower shell, a water tank is fixedly connected to the upper surface of the lower shell, and sliding chutes are formed in two sides of the lower shell. Through the arrangement of the push plate, when the device is used, after a casting is cooled to a proper temperature, the limiting bolt is rotated reversely, so that the limiting bolt is separated from the surface of the clamping block, then the electric push rod is started, the clamping block is clamped in the clamping block, the clamping block is clamped in the clamping block, the clamping block is clamped in the clamping block, and the clamping block is clamped in the clamping block. When the casting is taken out, the upper shell is opened again, then the two pull rods are pulled at the same time, the pull rods drive the second locking blocks to move out of the interiors of the clamping grooves, at the moment, the second springs push the push plates upwards through the elastic force of the second springs, and therefore the casting is automatically moved out of the interior of the inner cavity, and the taking-out efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and more specifically to a mold for gray iron castings based on ductile iron. Background Art

[0002] Casting is one of the earliest metal manufacturing processes mastered by humans. The casting process uses a certain amount of raw sand as the main molding material. The liquid metal is poured into a mold similar to the part. After cooling, the part or blank is obtained. Gray iron castings are the most common product. In the casting process of gray iron castings, specific molds are required.

[0003] The shortcomings of the prior art: During the use of the existing gray iron casting mold based on ductile iron, after the material inside the mold is formed, a specific tool is needed to take out the formed parts. The existing mold does not have a self-removal mechanism, which makes the removal process more cumbersome. When taking out the formed parts, the temperature of the parts needs to be lowered to a certain temperature before they can be taken out. The existing cooling method is natural cooling, which takes a lot of time. For this reason, we propose a gray iron casting mold based on ductile iron to solve the above problems. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides a mold for gray iron castings based on ductile iron to solve the problems existing in the above background technology.

[0005] The utility model provides the following technical solution: a mold for gray iron castings based on ductile iron, comprising a base, the upper surface of the base is fixedly connected to a lower shell, the interior of the lower shell is fixedly connected to an inner cavity, the upper surface of the lower shell is fixedly connected to a water tank, both sides of the lower shell are provided with slide grooves, and the slide grooves on both sides of the lower shell are movably connected to pull rods;

[0006] Wherein: buckles are fixedly connected on both sides of the lower shell, the top of the lower shell is fixedly connected to the upper shell, blocks are fixedly connected on both sides of the upper shell, the blocks are matched with the inner walls of the buckles, and the lower surface of the inner wall of the upper shell is fixedly connected to the upper cover plate;

[0007] Preferably, the front thread connection of the buckle is provided with a limit bolt, and slide grooves are provided on both sides of the upper shell body, and locking blocks are slidably connected in the slide grooves on both sides of the upper shell body, one end of the locking block extends to the inner wall of the buckle and abuts against the side of the locking block, and the side of the locking block is fixedly connected with a spring, and the other end of the spring abuts against the inner walls of the slide grooves on both sides of the buckle.

[0008] Preferably, the upper surface of the base is fixedly connected to a fixing frame, both ends of the upper surface of the fixing frame are fixedly connected to electric push rods, the movable ends of the electric push rods are fixedly connected to the side surfaces of the upper shell body, and positioning rods are slidably connected to the four corners of the surface of the fixing frame, and the bottom ends of the positioning rods are fixedly connected to the upper surface of the upper shell body.

[0009] Preferably, the inner wall of the inner cavity is slidably connected with a push plate, and the lower surface of the push plate has adjusting rods arranged equidistantly in a ring shape, and the outer sides of the adjusting rods are sleeved with springs 2, and the two ends of the springs 2 are respectively abutted against the two ends of the adjusting rods, and a slot is provided on the side of the inner cavity.

[0010] Preferably, a water filling bin is fixedly connected to the upper surface of the water tank, a circulation pump is fixedly connected to one end of the inner wall of the water tank, a water pipe is fixedly connected to the output end of the circulation pump, the other end of the water pipe is communicated with an end of the inner wall of the water tank away from the circulation pump, and the side of the water pipe extends to the inner wall of the lower shell and contacts the upper surface of the upper cover plate.

[0011] Preferably, one end of the pull rod located inside the slide groove on both sides of the lower shell is fixedly connected to a locking block 2, one side of the locking block 2 extends to the inner wall of the inner cavity and engages with the inner wall of the slot, and both ends of the other side of the locking block 2 are fixedly connected to a spring 3, and the two ends of the spring 3 are respectively against the side of the locking block 2 and the inner walls of the slide groove on both sides of the lower shell.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model is provided with a push plate. When the device is used, after the casting is cooled to a suitable temperature, the limit bolt is rotated in the opposite direction to separate the limit bolt from the surface of the card block, and then the electric push rod is opened to reopen the upper shell, and then the two pull rods are pulled at the same time, the pull rods will drive the lock block 2 to move out from the inside of the card slot. At this time, the spring 2 will push the push plate upward through its own elastic force, so that the casting is automatically moved out from the inside of the inner cavity, which is conducive to improving the efficiency of removal.

[0014] 2. The utility model is provided with a water tank. When the device is used, the circulating pump will transport the cooling water in the water tank to the inside of the water pipe, and the surface of the water pipe and the upper cover plate are in contact with each other, so that the casting can be quickly cooled through heat conduction, which is beneficial to improving the cooling efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic cross-sectional diagram of the overall structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the card block structure of the utility model;

[0018] Figure 4 For the utility model Figure 2 A schematic diagram of the structure enlargement in the middle;

[0019] Figure 5 This is a schematic diagram of the push plate structure of the utility model;

[0020] Figure 6 This is a structural schematic diagram of the second locking block of the utility model.

[0021] The accompanying drawings are marked as follows: 1. base; 101. fixing frame; 102. electric push rod; 103. positioning rod; 2. lower shell; 201. buckle; 202. upper shell; 2021. block; 2022. upper cover; 203. limit bolt; 204. lock block one; 205. spring one; 3. inner cavity; 301. push plate; 3011. slot; 302. adjustment rod; 3021. spring two; 4. water tank; 401. water filling tank; 402. circulating pump; 4021. water guide pipe; 5. pull rod; 501. lock block two; 502. spring three. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solution of the utility model in conjunction with the drawings in the utility model. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The mold for gray iron castings based on ductile iron involved in the utility model is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0023] The utility model provides a mold for gray iron castings based on ductile iron, comprising a base 1, a lower shell 2 is fixedly connected to the upper surface of the base 1, an inner cavity 3 is fixedly connected to the interior of the lower shell 2, a water tank 4 is fixedly connected to the upper surface of the lower shell 2, slide grooves are provided on both sides of the lower shell 2, and pull rods 5 are movably connected in the slide grooves on both sides of the lower shell 2;

[0024] Wherein: both sides of the lower shell 2 are fixedly connected with buckles 201, the top of the lower shell 2 is fixedly connected with the upper shell 202, both sides of the upper shell 202 are fixedly connected with clamping blocks 2021, the clamping blocks 2021 are adapted to the inner walls of the buckles 201, and the lower surface of the inner wall of the upper shell 202 is fixedly connected with an upper cover plate 2022. When in use, the clamping blocks 2021 and the buckles 201 are adapted to each other, so as to prevent the upper shell 202 and the lower shell 2 from position deviation during the merging process, which is beneficial to improve the stability of the device.

[0025] Furthermore, the front thread connection of the buckle 201 is provided with a limit bolt 203, and sliding grooves are provided on both sides of the upper shell 202. Locking blocks 204 are slidably connected in the sliding grooves on both sides of the upper shell 202. One end of the locking block 204 extends to the inner wall of the buckle 201 and abuts against the side of the block 2021. The side of the locking block 204 is fixedly connected with a spring 205, and the other end of the spring 205 abuts against the inner walls of the sliding grooves on both sides of the buckle 201. When in use, the locking block 204, pushed by the elastic force of the spring 205, will assist in fixing the block 2021, thereby improving the stability of the device.

[0026] Furthermore, a fixing frame 101 is fixedly connected to the upper surface of the base 1, and electric push rods 102 are fixedly connected to both ends of the upper surface of the fixing frame 101. The movable ends of the electric push rods 102 are fixedly connected to the sides of the upper shell 202. Positioning rods 103 are slidably connected to the four corners of the surface of the fixing frame 101, and the bottom ends of the positioning rods 103 are fixedly connected to the upper surface of the upper shell 202. When in use, the positioning rods 103 can be used to limit the position of the upper shell 202 during the up and down movement, thereby improving the stability of the device.

[0027] Furthermore, a push plate 301 is slidably connected to the inner wall of the inner cavity 3, and an adjusting rod 302 is equidistantly arranged in a ring shape on the lower surface of the push plate 301. A spring 2 3021 is sleeved on the outer side of the adjusting rod 302, and the two ends of the spring 2 3021 are respectively abutted against the two ends of the adjusting rod 302. A slot 3011 is provided on the side of the inner cavity 3. When in use, the spring 2 3021 will push the push plate 301 upward through its own elastic force, thereby automatically moving the casting out of the inner cavity 3, which is beneficial to improving the removal efficiency.

[0028] Furthermore, a water filling bin 401 is fixedly connected to the upper surface of the water tank 4, a circulating pump 402 is fixedly connected to one end of the inner wall of the water tank 4, a water pipe 4021 is fixedly connected to the output end of the circulating pump 402, the other end of the water pipe 4021 is communicated with one end of the inner wall of the water tank 4 away from the circulating pump 402, the side of the water pipe 4021 extends to the inner wall of the lower shell 2 and contacts the upper surface of the upper cover 2022. When in use, the circulating pump 402 will transport the cooling water inside the water tank 4 to the inside of the water pipe 4021, and the surface of the water pipe 4021 and the upper cover 2022 are in contact with each other, so that the casting can be quickly cooled through heat conduction, which is beneficial to improving the cooling efficiency of the device.

[0029] Furthermore, one end of the pull rod 5 located inside the slide groove on both sides of the lower shell body 2 is fixedly connected with a locking block 2 501, one side of the locking block 2 501 extends to the inner wall of the inner cavity 3 and engages with the inner wall of the slot 3011, and the two ends of the other side of the locking block 2 501 are fixedly connected with a spring 3 502, and the two ends of the spring 3 502 are respectively against the side of the locking block 2 501 and the inner walls of the slide groove on both sides of the lower shell body 2. When in use, the locking block 2 501 can be used to fix the position of the push plate 301, which is beneficial to improve the stability of the device.

[0030] The working principle of the utility model is as follows: when in use, the electric push rod 102 is first turned on, at which time, the electric push rod 102 will drive the upper shell 202 to move out from the surface of the lower shell 2, and then inject the molten material into the inner cavity 3, and then reset the upper shell 202, and then rotate the limit bolt 203 to fix the position of the upper shell 202, at which time the upper shell 202 and the push plate 301 are squeezed against each other, so as to shape the molten material, and at this time, the circulation pump 402 is started, and the circulation pump 402 will transport the cooling water inside the water tank 4 to the inside of the water pipe 4021, and the surface of the water pipe 4021 and the upper cover plate 2022 are in contact, and the casting is quickly cooled by heat conduction, which is beneficial to improve the cooling efficiency of the device;

[0031] Note: When the water temperature inside the water tank 4 rises to a certain temperature, it means that the temperature of the casting has cooled to a certain temperature, and there is no problem that the casting cannot be cooled after long-term use;

[0032] When the casting is cooled to a suitable temperature, the limit bolt 203 is rotated in the opposite direction to separate the limit bolt 203 and the surface of the block 2021, and then the electric push rod 102 is opened to reopen the upper shell 202, and then the two pull rods 5 are pulled at the same time. The pull rods 5 will drive the locking block 2 501 to move out from the inside of the slot 3011. At this time, the spring 2 3021 will push the push plate 301 upward through its own elastic force, so that the casting is automatically moved out from the inside of the inner cavity 3, which is beneficial to improve the efficiency of removal.

[0033] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0034] Secondly: The drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0035] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A mould for grey iron castings based on ductile iron, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a lower shell (2), the interior of the lower shell (2) is fixedly connected to an inner cavity (3), the upper surface of the lower shell (2) is fixedly connected to a water tank (4), both sides of the lower shell (2) are provided with slide grooves, and the slide grooves on both sides of the lower shell (2) are movably connected to pull rods (5); Wherein: both sides of the lower shell (2) are fixedly connected with buckles (201), the top of the lower shell (2) is fixedly connected with the upper shell (202), both sides of the upper shell (202) are fixedly connected with clamping blocks (2021), the clamping blocks (2021) are adapted to the inner wall of the buckle (201), and the lower surface of the inner wall of the upper shell (202) is fixedly connected with an upper cover plate (2022).

2. A mold for gray iron castings based on ductile iron according to claim 1, characterized in that: The front surface of the buckle (201) is threadedly connected to a limit bolt (203), and both sides of the upper shell (202) are provided with sliding grooves, and the sliding grooves on both sides of the upper shell (202) are slidably connected with locking blocks (204), one end of the locking block (204) extends to the inner wall of the buckle (201) and abuts against the side of the locking block (2021), and the side of the locking block (204) is fixedly connected with a spring (205), and the other end of the spring (205) abuts against the inner walls of the sliding grooves on both sides of the buckle (201).

3. A mold for gray iron castings based on ductile iron according to claim 1, characterized in that: The upper surface of the base (1) is fixedly connected to a fixing frame (101), both ends of the upper surface of the fixing frame (101) are fixedly connected to electric push rods (102), the movable ends of the electric push rods (102) are fixedly connected to the side surfaces of the upper shell (202), and the four corners of the surface of the fixing frame (101) are slidably connected to positioning rods (103), and the bottom ends of the positioning rods (103) are fixedly connected to the upper surface of the upper shell (202).

4. A mold for gray iron castings based on ductile iron according to claim 1, characterized in that: The inner wall of the inner cavity (3) is slidably connected to a push plate (301), and the lower surface of the push plate (301) is provided with adjusting rods (302) arranged equidistantly in a ring shape, and the outer sides of the adjusting rods (302) are sleeved with springs 2 (3021), and the two ends of the springs 2 (3021) are respectively abutted against the two ends of the adjusting rods (302), and a slot (3011) is provided on the side of the inner cavity (3).

5. A mold for gray iron castings based on ductile iron according to claim 1, characterized in that: The upper surface of the water tank (4) is fixedly connected to a water filling bin (401); one end of the inner wall of the water tank (4) is fixedly connected to a circulation pump (402); the output end of the circulation pump (402) is fixedly connected to a water pipe (4021); the other end of the water pipe (4021) is in communication with an end of the inner wall of the water tank (4) away from the circulation pump (402); and the side surface of the water pipe (4021) extends to the inner wall of the lower shell (2) and contacts the upper surface of the upper cover plate (2022).

6. A mold for gray iron castings based on ductile iron according to claim 1, characterized in that: One end of the pull rod (5) located inside the slide groove on both sides of the lower shell (2) is fixedly connected to a locking block 2 (501), one side of the locking block 2 (501) extends to the inner wall of the inner cavity (3) and engages with the inner wall of the slot (3011), and the two ends of the other side of the locking block 2 (501) are fixedly connected to a spring 3 (502), and the two ends of the spring 3 (502) are respectively against the side of the locking block 2 (501) and the inner wall of the slide groove on both sides of the lower shell (2).

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