A limitable metallurgical casting mold and use method

Abstract

The present invention discloses a metallurgical casting mold with limitable position and a method for using the same, belonging to the technical field of metallurgical casting molds. The metallurgical casting mold with limitable position comprises a frame, a lower mold mechanism, an upper mold structure and a limit structure. The present invention provides a limit card seat and a limit card block to cooperate with each other, so that the upper mold plate can be accurately docked with the lower mold, and after the upper mold plate and the lower mold are completed, the limit rod on the upper mold plate is inserted into the limit hole on the lower mold, thereby increasing the sealing inside the mold and improving the molding quality of the casting; by controlling the trapezoidal extrusion block to extrude the pressure rod, the baffle corresponding to the pressure rod is pushed down and smoothly inserted into the installation slot, and the size of the molding cavity in the lower mold is automatically adjusted, so that the same set of molds can be used to cast castings of different sizes, thereby improving the flexibility of mold use.

Description

Technical Field

[0001] The invention belongs to the technical field of metallurgical casting molds, and particularly relates to a position-limitable metallurgical casting mold and a use method thereof. Background Art

[0002] Before using a metallurgical casting mold, the mold needs to be closed. During the closing process, the power mechanism that pulls the upper mold and the lower mold to move may vibrate during operation, resulting in the upper mold and the lower mold not being able to achieve precise closing. Moreover, in the actual metallurgical casting process, different sizes of castings require molds of different sizes. This paper proposes a metallurgical casting mold with limitable position that can achieve precise closing and adjust the mold size, and a method for using the mold. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention aims to provide a position-limited metallurgical casting mold and a method of use.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A limitable metallurgical casting mold comprises a frame, a lower mold mechanism, an upper mold structure and a limit structure, wherein the frame is provided with a lower mold mechanism, the lower mold mechanism comprises a lower mold slidably arranged on the upper surface of the frame, and a plurality of receiving slots are provided in the lower mold;

[0006] The frame is provided with a mounting frame, an upper mold structure is provided on the mounting frame, the upper mold structure includes a plurality of hydraulic cylinders fixedly connected to the mounting frame, the output end of the hydraulic cylinder is connected to a connecting ear, the connecting ear is connected to an upper mold plate, a protective shell is installed on the upper mold plate, a trapezoidal extrusion block is slidably provided inside the protective shell, a connecting block is installed on the trapezoidal extrusion block, a second screw rod is connected to the inner thread of the connecting block, a partition is installed in the protective shell, a plurality of pressure rods are slidably connected in the partition, the bottom end of the pressure rod is connected to a baffle, and a casting pipe is installed in the protective shell;

[0007] A plurality of third screw rods are rotatably connected to the frame, and a limiting structure is provided on one side of the lower mold mechanism. The limiting structure includes an I-shaped push piece threadedly connected to the third screw rod, and a limiting clamping seat is symmetrically connected to the I-shaped push piece, and a limiting clamping block is provided directly above the limiting clamping seat.

[0008] A method for using a position-limitable metallurgical casting mold comprises the following steps:

[0009] S1. Start the servo motor and hydraulic cylinder, control the output shaft of the servo motor to rotate forward, and push the lower mold to the position close to the upper mold plate and the lower mold through the first screw. The hydraulic cylinder pushes the upper mold plate and the limit block down;

[0010] S2, control the third screw to rotate, push the limit card seat up through the workpiece, and the limit card block is automatically inserted into the limit card seat;

[0011] S3, one side of the lower mold contacts one side of the limit card seat, and the servo motor is turned off;

[0012] S4, the upper mold plate and the lower mold are closed, and the hydraulic cylinder is closed;

[0013] S5. Start the drive motor to control the movement of the trapezoidal extrusion block, squeeze the pressure rod, lower the baffle, and insert it into the installation slot to adjust the size of the molding cavity inside the lower mold;

[0014] S6, turn off the drive motor;

[0015] S7, pouring molten iron into the molding cavity through the pouring pipe;

[0016] S8, start the hydraulic cylinder to control the upper mold to separate from the lower mold;

[0017] S9, start the servo motor to control the lower mold to move away from the mold closing position;

[0018] S10, close the hydraulic cylinder and servo motor, and take out the casting in the molding cavity

[0019] Beneficial effects of the present invention:

[0020] 1. The present invention provides a limit card seat and a limit card block to cooperate with each other, so that the upper template can be accurately docked with the lower mold. After the upper template and the lower mold are completed, the limit rod on the upper template is inserted into the limit hole on the lower mold, which increases the sealing inside the mold and improves the molding quality of the casting.

[0021] 2. The present invention controls the trapezoidal extrusion block to extrude the pressure rod, pushes the baffle connected to the pressure rod to descend, and smoothly inserts it into the installation slot, automatically adjusting the size of the forming cavity in the lower mold, so that the same set of molds can be used to cast castings of different sizes, thereby improving the flexibility of mold use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 This is a schematic diagram of the structure of the present invention Figure I ;

[0024] Figure 2 This is a schematic diagram of the structure of the present invention Figure II ;

[0025] Figure 3 This is a schematic diagram of the structure of the present invention Figure III ;

[0026] Figure 4 yes Figure 3 A local enlarged view at point A;

[0027] Figure 5 It is a structural schematic diagram of the lower mold mechanism of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the upper mold mechanism of the present invention;

[0029] Figure 7 This is a schematic diagram of the internal structure of the upper mold mechanism of the present invention Figure I ;

[0030] Figure 8 This is a schematic diagram of the internal structure of the upper mold mechanism of the present invention Figure II .

[0031] Description of the numbers in the figure:

[0032] 1. Mounting frame; 2. Upper mold structure; 201. Casting pipe; 202. Hydraulic cylinder; 203. Second screw; 204. Protective shell; 205. Limit rod; 206. Upper mold plate; 207. Baffle; 208. Notch; 209. Connecting ear; 210. Mounting piece; 211. Connecting block; 212. Trapezoidal extrusion block; 213. Spring; 214. Press plate; 215. Partition; 216. Press rod; 3. Bearing seat; 4. First bevel gear; 5. Second bevel gear; 6. Third screw; 7. Limiting structure; 701. Limiting block; 702. Limiting seat; 703. Through port; 704. I-type push piece; 8. First screw; 9. Lower mold mechanism; 901. Limiting hole; 902. Lower mold; 903. Mounting slot; 904. Connector; 10. Frame; 11. Slide rail; 12. Servo motor; 13. Motor box. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] See also Figures 1 to 8 As shown, a limitable metallurgical casting mold includes a frame 10, two first screw rods 8 are rotatably provided on the frame 10, one end of the first screw rod 8 is installed with a servo motor 12, a slide rail 11 is symmetrically installed on the upper surface of the frame 10, and a lower mold mechanism 9 is provided on the slide rail 11. The lower mold mechanism 9 includes a lower mold 902 slidably connected to the slide rail 11, a molding cavity is defined inside the lower mold 902, a plurality of connecting members 904 are symmetrically connected on both sides of the lower mold 902, and the connecting members 904 are threadedly connected to the first screw rod 8, and the lower mold 902 is pushed to move by the first screw rod 8, three mounting slots 903 are defined on the inner wall of the lower mold 902, and a plurality of limiting holes 901 are defined on the upper surface of the lower mold 902;

[0036] One side of the frame 10 is fixedly connected to a mounting frame 1, and an upper mold structure 2 is provided on the mounting frame 1. The upper mold structure 2 includes a mounting member 210 fixedly connected to the mounting frame 1, and a second screw rod 203 is rotatably connected between the mounting member 210 and the mounting frame 1. A motor box 13 is slidably installed on one side of the mounting frame 1, and a driving motor is installed inside the motor box 13. The output shaft of the driving motor is fixedly connected to one end of the second screw rod 203. The external thread of the second screw rod 203 is connected to a plurality of connecting blocks 211, and the lower surface of the connecting block 211 is fixedly installed with a trapezoidal extrusion block 212 , an upper template 206 is provided below the second screw rod 203, the top of the upper template 206 is fixedly connected to the protective shell 204, the connecting block 211 passes through the protective shell 204, a partition 215 is fixedly installed inside the protective shell 204, three pressure rods 216 are movably connected in the partition 215, the bottom ends of the three pressure rods 216 are fixedly connected to a baffle 207, a plurality of springs 213 are fixedly connected between the baffle 207 and the top inner wall of the protective shell 204, the lower surface of the upper template 206 is fixedly connected to a pressure plate 214, and three notches are opened on the pressure plate 214 208, and the baffle 207 passes through the upper template 206 and is left in the slot 208. According to the size of different castings, the position of the trapezoidal extrusion block 212 is adjusted to realize the extrusion of one or more pressure rods 216, so that the baffle 207 corresponding to the pressure rod 216 extends out of the slot 208, and the baffle 207 smoothly enters the installation slot 903, automatically changing the size of the molding cavity in the lower mold 902. A pouring pipe 201 is installed in the protective shell 204, and the pouring pipe 201 passes through the mounting frame 1 and is slidably connected to the mounting frame 1, and the bottom end of the pouring pipe 201 passes through Press plate 214, molten iron is injected into the molding cavity through pouring pipe 201, multiple connecting ears 209 are symmetrically connected on both sides of the upper template 206, and a hydraulic cylinder 202 is installed on the connecting ear 209, and the top of the hydraulic cylinder 202 is fixedly connected to the mounting frame 1, wherein the hydraulic cylinder 202 controls the lowering of the upper template 206 to achieve the closing of the upper template 206 and the lower mold 902. The lower surface of the upper template 206 is fixedly connected to multiple limiting rods 205. When the upper template 206 and the lower mold 902 are closed, the limiting rods 205 are inserted into the limiting holes 901, thereby improving the sealing inside the mold;

[0037] The other end of the first screw rod 8 is fixedly connected to the first bevel gear 4. Two bearing seats 3 are symmetrically installed on the mounting frame 1. A third screw rod 6 is rotatably connected between the bearing seat 3 and the frame 10. The outer fixed sleeve of the third screw rod 6 is provided with a second bevel gear 5. The first bevel gear 4 is meshed with the second bevel gear 5 for transmission;

[0038] A limiting structure 7 is provided on one side of the lower mold mechanism 9, and the limiting structure 7 includes a work-shaped push piece 704 threadedly connected to the outside of the two third screw rods 6, and two limiting clamps 702 are symmetrically connected to the work-shaped push piece 704. Two through openings 703 are symmetrically opened on the frame 10, and the limiting clamp 702 slides through the through opening 703. A limiting block 701 is provided directly above the limiting clamp 702, and the limiting block 701 is fixedly connected to the connecting ear 209. During the descending process of the upper template 206, the limiting block 701 automatically falls into the limiting clamp 702, thereby increasing the accuracy of the docking and positioning of the upper template 206 and the lower mold 902. At the same time, the limiting clamp 702 also limits the lower mold 902 to prevent the lower mold 902 from deviating from the closing position.

[0039] Working principle: First, start the servo motor 12 and the hydraulic cylinder 202, control the output shaft of the servo motor 12 to rotate forward, thereby controlling the first screw rod 8 to rotate forward, thereby pushing the lower mold 902 to the position close to the upper mold plate 206 and the lower mold 902 through the connecting piece 904, and at the same time, the first screw rod 8 drives the first bevel gear 4 to rotate, and the first bevel gear 4 is meshed with the second bevel gear 5 to control the third screw rod 6 to rotate forward, thereby controlling the workpiece pusher 704 to rise, thereby pushing the limit card seat 702 through the through-hole 703 Move upward. During the forward movement of the lower mold 902, the lower mold 902 is limited by the limit clamping seat 702, so that the lower mold 902 stops at the mold closing position. Then, the servo motor 12 is turned off. At this time, the hydraulic cylinder 202 pushes the limit clamping block 701 and the upper mold plate 206 downward through the connecting ear 209. The limit clamping block 701 is automatically inserted into the limit clamping seat 702. The upper mold plate 206 controls the limit rod 205 to be inserted into the limit hole 901, so that the upper mold plate 206 and the lower mold 902 are automatically closed. The hydraulic cylinder 202 is turned off.

[0040] Then, the size of the molding cavity of the lower mold 902 is adjusted according to the size of the casting. When the outer length of the casting is too small, the drive motor is started and the output shaft of the drive motor is controlled to rotate forward, thereby controlling the second screw rod 203 to rotate forward, thereby controlling the movement of the trapezoidal extrusion block 212 through the connecting block 211, and sequentially squeezing the pressure rod 216, thereby pushing the baffle 207 connected to the pressure rod 216 out of the notch 208 and smoothly inserting it into the installation slot 903, automatically adjusting the size of the molding cavity inside the lower mold 902. When the size of the molding cavity reaches the outer size of the casting, the drive motor is turned off.

[0041] Secondly, molten iron is poured into the molding cavity through the pouring pipe 201;

[0042] Finally, when the casting is cooled and formed, the hydraulic cylinder 202 pulls the upper template 206 through the connecting ear 209 to separate from the lower mold 902, then starts the servo motor 12 and controls the output shaft of the servo motor 12 to reverse, and controls the lower mold 902 to move away from the mold closing position through the connecting piece 904, so that the worker can take out the casting in the molding cavity. At the same time, the first bevel gear 4 and the second bevel gear 5 control the third screw 6 to reverse, thereby controlling the limit card seat 702 to descend through the workpiece pusher 704 and retract it into the frame 10, so as to facilitate the cleaning of the upper surface of the frame 10.

[0043] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0044] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A position-limitable metallurgical casting mold, comprising a frame (10), a lower mold mechanism (9), an upper mold structure (2) and a position-limiting structure (7), characterized in that: A lower mold mechanism (9) is provided on the frame (10), and the lower mold mechanism (9) includes a lower mold (902) slidably provided on the upper surface of the frame (10), and a plurality of receiving slots (903) are provided in the lower mold (902); The frame (10) is provided with a mounting frame (1), and an upper mold structure (2) is provided on the mounting frame (1). The upper mold structure (2) includes a plurality of hydraulic cylinders (202) fixedly connected to the mounting frame (1), and the output ends of the hydraulic cylinders (202) are connected to connecting ears (209), and the connecting ears (209) are connected to an upper mold plate (206), and a protective shell (204) is installed on the upper mold plate (206), and the protective shell (204) is internally slidable. A trapezoidal extrusion block (212) is provided, a connecting block (211) is installed on the trapezoidal extrusion block (212), a second screw rod (203) is connected to the inner thread of the connecting block (211), a partition (215) is installed in the protective shell (204), a plurality of pressure rods (216) are slidably connected in the partition (215), the bottom end of the pressure rod (216) is connected to a baffle (207), and a pouring pipe (201) is installed in the protective shell (204); A plurality of third screw rods (6) are rotatably connected to the frame (10), a limiting structure (7) is provided on one side of the lower mold mechanism (9), the limiting structure (7) comprises a molded push piece (704) threadedly connected to the third screw rods (6), a limiting clamping seat (702) is symmetrically connected to the molded push piece (704), and a limiting clamping block (701) is provided directly above the limiting clamping seat (702).

2. A positionable metallurgical casting mold according to claim 1, characterized in that: A plurality of first screw rods (8) are rotatably provided on the frame (10), a servo motor (12) is installed at one end of the first screw rods (8), a slide rail (11) is installed on the upper surface of the frame (10), and the lower mold (902) is slidably installed on the slide rail (11).

3. A positionable metallurgical casting mold according to claim 2, characterized in that: A plurality of connecting pieces (904) are connected to both sides of the lower mold (902), and the connecting pieces (904) are threadedly connected to the first screw rod (8).

4. The positionable metallurgical casting mold according to claim 1, characterized in that: The lower surface of the upper template (206) is connected to a plurality of limiting rods (205), and the upper surface of the lower mold (902) is provided with a plurality of limiting holes (901).

5. The position-limitable metallurgical casting mold according to claim 1, characterized in that: The mounting frame (1) is provided with a mounting piece (210), and one end of the second screw rod (203) is connected to the mounting frame (1), and the other end of the second screw rod (203) is connected to a drive motor, and a motor box (13) is provided outside the drive motor.

6. The position-limitable metallurgical casting mold according to claim 1, characterized in that: A plurality of springs (213) are connected between the upper surface of the baffle (207) and the protective shell (204).

7. The positionable metallurgical casting mold and the method of using the same according to claim 1, characterized in that: A pressing plate (214) is fixedly mounted on the lower surface of the upper template (206), and a plurality of notches (208) are formed on the pressing plate (214).

8. The position-limitable metallurgical casting mold according to claim 2, characterized in that: The other end of the first screw rod (8) is connected to a first bevel gear (4), the third screw rod (6) is sleeved with a second bevel gear (5), a plurality of bearing seats (3) are mounted on the mounting frame (1), and the top end of the third screw rod (6) is rotatably connected to the bearing seat (3).

9. The position-limitable metallurgical casting mold according to claim 1, characterized in that: A through opening (703) is provided on the frame (10), and the position-limiting holder (702) passes through the through opening (703).

10. The method for using a position-limitable metallurgical casting mold according to claim 9, characterized in that: The following steps are involved: S1, start the servo motor (12) and the hydraulic cylinder (202), control the output shaft of the servo motor (12) to rotate forward, push the lower mold (902) to move to a position close to the upper mold plate (206) and the lower mold (902) through the first screw rod (8), and the hydraulic cylinder (202) pushes the upper mold plate (206) and the limit block (701) to descend; S2, controlling the third screw rod (6) to rotate, pushing the limit clamping seat (702) upward through the type pusher (704), and the limit clamping block (701) is automatically inserted into the limit clamping seat (702); S3, one side of the lower mold (902) contacts one side of the limit clamp (702), and the servo motor (12) is turned off; S4, the upper mold plate (206) and the lower mold (902) are closed, and the hydraulic cylinder (202) is closed; S5. Start the driving motor to control the movement of the trapezoidal extrusion block (212), squeeze the pressure rod (216), so that the baffle (207) is lowered and inserted into the installation slot (903), and adjust the size of the internal molding cavity of the lower mold (902); S6, turn off the drive motor; S7, pouring molten iron into the molding cavity through the pouring pipe (201); S8, start the hydraulic cylinder (202) to control the upper mold plate (206) to separate from the lower mold (902); S9, starting the servo motor (12) to control the lower mold (902) to move away from the mold closing position; S10, closing the hydraulic cylinder (202) and the servo motor (12), and taking out the casting in the molding cavity.

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