A plasticizer for manufacturing high-quality metal castings

Abstract

The present invention relates to the technical field of metal casting manufacturing. The present invention discloses a plasticizer for manufacturing high-quality metal castings, comprising an operating table, wherein vertical frames are fixedly installed on both sides of the top of the operating table, the top of the vertical frames is fixedly connected to a mounting plate, the bottom of the mounting plate is fixedly connected to an upper mold, a lower mold is arranged below the upper mold, and limiting rods are arranged around the upper mold and the lower mold, the top of the limiting rod is fixedly connected to the mounting plate, the inner surface of the limiting rod is respectively fitted with the surface of the upper mold and the lower mold, and the edges of the two molds are kept flush through the provided mounting mechanism so that the inside of the mold is kept flush, thereby improving the precision in the metal casting manufacturing process, and the lower mold is turned over 180 degrees as a whole, and the finished casting completed in the lower mold is thrown out of the lower mold and falls on the operating table, which is convenient for directly demolding the metal casting.

Description

Technical Field

[0001] The invention relates to the technical field of metal casting manufacturing, in particular to a plasticizer used for manufacturing high-quality metal castings. Background Art

[0002] High-quality metal casting manufacturing refers to the production of metal castings with precise shapes, good mechanical properties and high surface quality through casting processes. These castings are usually used in industrial applications that require high durability, reliability and precision, such as automobiles, aerospace, machinery manufacturing, metallurgical equipment and other fields. Therefore, in the manufacturing process of high-quality metal castings, it is necessary to strictly regulate the process and technology to ensure that the metal castings meet the use standards;

[0003] In the prior art, high-quality metal casting is performed by injecting molten metal into a mold, taking it out after the metal cools and solidifies, and forming a metal part of a specific shape and size. In the process of injecting molten metal into the mold, after the mold has been used for a long time, friction will be generated when the mold is fitted, and the joints are prone to misalignment and offset, resulting in loose fit and relative position deviation when the mold is fitted, which will affect the molding of the casting during the casting process, resulting in the inability to guarantee the quality of the metal casting and affecting the use of the metal casting. Therefore, it is necessary to improve it. Summary of the invention

[0004] The purpose of the present invention is to provide a plasticizer for manufacturing high-quality metal castings to solve the problems raised in the above-mentioned background technology. In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: including an operating table, vertical frames are fixedly installed on both sides of the top of the operating table, the top of the vertical frames is fixedly connected to a mounting plate, the bottom of the mounting plate is fixedly connected to an upper mold, a lower mold is arranged below the upper mold, and limiting rods are arranged around the upper mold and the lower mold, the top of the limiting rod is fixedly connected to the mounting plate, the inner surface of the limiting rod is respectively fitted with the surface of the upper mold and the lower mold, a mounting mechanism is movably arranged on the vertical frame, a cylinder is fixedly installed inside the operating table, and a clamping mechanism is arranged above the cylinder;

[0005] The left and right sides of the stand are respectively penetrated with a demoulding guide groove and an adaptation guide groove;

[0006] The locking mechanism includes a swing arm, which is rotatably mounted on the operating table, one end of the swing arm is fixedly connected to a locking sleeve, a locking rod is movably connected inside the locking sleeve, the top of the locking rod is fixedly connected to the mounting plate, one end of the swing arm is fixedly connected to a vertical pole, transmission rods are rotatably connected to both sides of the vertical pole on the swing arm, a lifter is slidably connected to the upper part of the vertical pole, a control wheel is rotatably connected to the bottom of the lifter, a clamping head is telescopically connected to the bottom of the locking rod, notches are symmetrically provided on both sides of the bottom of the locking sleeve, an oblique groove is provided on the surface of the clamping head, a through hole is penetrated through the swing arm, the top of the vertical pole is fixedly connected to the top of the locking sleeve, and a spring four is movably sleeved on the upper part of the vertical pole.

[0007] Preferably, the mounting mechanism includes a frame plate, which is symmetrically arranged on both sides of the bottom of the lower mold, and four sliders are symmetrically arranged on the side walls of the frame plate, the four sliders are slidably connected to the frame plate, the middle part of the slider is slidably connected to a base frame, and the base frame is fixedly connected to the lower mold.

[0008] Preferably, the outer surface of one of the frame plates is fixedly connected to a flip shaft, and the outer surface of the other frame plate is fixedly connected to a connecting shaft, the flip shaft and the connecting shaft are both rotatably connected with a disc, the interior of the disc is fixedly connected to a semi-circular ring tube, the flip shaft and the connecting shaft are both fixedly connected to a rocker arm, and one end of the rocker arm away from the flip shaft and the connecting shaft is movably sleeved on the semi-circular ring tube.

[0009] Preferably, spring 2 is provided on both sides of the slider, the spring 2 is movably sleeved on the frame plate, and spring 3 is movably sleeved on the semicircular ring tube.

[0010] Preferably, a push stop head is slidably connected to the four sides of the bottom of the frame plate, a roller is rotatably connected to one side of the top of the push stop head, and a spring is movably sleeved at the connection between the push stop head and the frame plate.

[0011] Preferably, the cylinder is movably connected to an output shaft inside, a cross bar is fixedly connected to the top of the output shaft, a lifting plate is rotatably connected to the output shaft below the cross bar, and the top surface of the lifting plate is in contact with the bottom of the swing arm.

[0012] Preferably, the flip shaft is slidably installed in the demoulding guide groove, and the connecting shaft is slidably installed in the adaptation guide groove.

[0013] Preferably, both sides of the bottom end of the limiting rod are provided with inclined surfaces, which serve to assist the lower mold and the upper mold to dock smoothly.

[0014] Preferably, one end of the transmission rod is arranged in a hook shape, so as to prevent it from being separated from the cross bar on the output shaft.

[0015] Preferably, the opening of the upper portion of the locking sleeve is trumpet-shaped, and its function is to match the locking rod, and the inner diameter of the locking sleeve is the same as the outer diameter of the locking rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, through the installation mechanism, when the lower mold and the upper mold gradually approach each other, the edge of the lower mold contacts the inclined surface of the bottom end of the four limit rods, so that the lower mold is adapted to the surface of the limit rods to move, so as to adjust the relative position with the upper mold. The four push-stop heads are stuck at the bottom of the lower mold during the continuous pushing process of the inclined surface of the bottom end of the limit rods, supporting the lower mold, so that the lower mold and the upper mold are kept in a close contact state, correcting the position deviation caused by the assembly between the two molds, so that the edges of the two molds are kept flush and the inside of the molds are kept flush, thereby improving the precision of the metal casting manufacturing process;

[0018] 2. In the present invention, before the lower mold and the upper mold are fitted together, the lock sleeve on the swing arm compresses the two clamps on the lock rod toward the inside of the lock rod through the trumpet opening at the top thereof when following the movement. After the outermost sides of the two clamps are flush with the outer wall of the lock rod, the lock rod extends into the lock sleeve. When the bottom end of the lock rod touches the bottom end of the lock sleeve, the swing arm stops moving further, and the lower mold and the upper mold are fitted together. Subsequently, the two clamps of the lock rod pop outward and pass through the inside of the lock sleeve from the notch provided on the lock sleeve, so that the swing arm and the mounting plate remain in a relatively static state, which can prevent the position of the lower mold and the upper mold from deviating, and facilitate further improving the product quality of metal castings.

[0019] 3. In the present invention, when the casting is completed and the two molds need to be opened for demoulding, the output shaft installed at the output end of the cylinder is retracted inwardly. During the process, when the cross bar moves, the transmission rod is pulled downward, so that the other end of the transmission rod is tilted upward, and the lifter moves upward. The lifter slides upward on the vertical rod and compresses the spring four. During the process, the control wheel rolls upward at the notch of the lock sleeve, so that the clamping head gradually moves toward the inside of the locking rod and is retracted. When the surface of the control wheel contacts the plane on the clamping head, the clamping head is completely retracted into the inside of the locking rod. Subsequently, under the action of gravity, the installation mechanism, the mold locking mechanism and the lower mold move downward, and the locking sleeve and the locking rod are automatically disconnected by the retraction of the cylinder output shaft, which is convenient for improving the efficiency of metal casting manufacturing;

[0020] 4. In the present invention, when the mounting mechanism moves downward, the flip shaft slides along the demoulding guide groove and passes through the turning point of the demoulding guide groove, so that the end of the flip shaft away from the contact with the disc temporarily stays at the corner of the demoulding guide groove, so that the lower mold is flipped 180 degrees as a whole. When flipping, the flip shaft and the rocker arm on the connecting shaft compress the spring three. During the flipping process, the finished casting in the lower mold is thrown out of the lower mold and falls on the operating table, which is convenient for direct demoulding of the metal casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view structural schematic diagram of the present invention;

[0022] Figure 2 It is a side view structural schematic diagram of the present invention;

[0023] Figure 3 It is a schematic diagram of the related structures of the mounting plate, the stand, the demoulding guide groove and the adaptation guide groove of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the installation mechanism of the present invention;

[0025] Figure 5 It is a schematic diagram of the bottom structure of the mounting mechanism of the present invention;

[0026] Figure 6 It is a side view structural schematic diagram of the mounting mechanism of the present invention;

[0027] Figure 7 It is a schematic diagram of the installation structure of the frame plate, the thrust stop head and the spring 1 of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0029] Fig. 9 It is a front view structural schematic diagram of the clamping mechanism of the present invention;

[0030] Fig.10 It is a schematic diagram of the cross-section structure of the lock sleeve and the lock rod of the present invention;

[0031] Fig.11 It is a structural schematic diagram of the clamp head, the inclined groove and the notch of the present invention;

[0032] Fig.12 For the present invention Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0033] In the figure: 1, operating table; 2, stand; 3, mounting plate; 4, upper mold; 5, lower mold; 6, limit rod; 7, mounting mechanism; 701, frame plate; 702, slider; 703, bottom frame; 704, turning shaft; 705, connecting shaft; 706, disc; 707, semicircular ring tube; 708, swing rod; 709, push stop head; 710, roller; 711, spring 1; 712, spring 2; 713, spring Spring three; 8, cylinder; 801, output shaft; 802, cross bar; 803, lifting plate; 9, clamping mechanism; 901, swing arm; 902, locking sleeve; 903, locking rod; 904, vertical rod; 905, transmission rod; 906, lifter; 907, control wheel; 908, clamping head; 909, notch; 910, inclined groove; 911, perforation; 912, spring four; 10, demoulding guide groove; 11, adaptive guide groove. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 technical personnel in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 12 The present invention provides a technical solution: it includes an operating table 1, a stand 2 is fixedly installed on both sides of the top of the operating table 1, a mounting plate 3 is fixedly connected to the top of the stand 2, an upper mold 4 is fixedly connected to the bottom of the mounting plate 3, a lower mold 5 is arranged below the upper mold 4, and a limiting rod 6 is arranged around the upper mold 4 and the lower mold 5, the top of the limiting rod 6 is fixedly connected to the mounting plate 3, the inner surface of the limiting rod 6 is respectively fitted with the surface of the upper mold 4 and the lower mold 5, a mounting mechanism 7 is movably arranged on the stand 2, a cylinder 8 is fixedly installed inside the operating table 1, a locking mechanism 9 is arranged above the cylinder 8, both sides of the bottom end of the limiting rod 6 are provided with inclined surfaces, which is used to assist the lower mold 5 to smoothly dock with the upper mold 4, and a demoulding guide groove 10 and an adaptation guide groove 11 are respectively penetrated on the left and right sides of the stand 2, the flip shaft 704 is slidably installed in the demoulding guide groove 10, and the connecting shaft 705 is slidably installed in the adaptation guide groove 11;

[0036] Embodiment 1;

[0037] The mounting mechanism 7 includes a frame plate 701, which is symmetrically arranged on both sides of the bottom of the lower mold 5. Four sliders 702 are symmetrically arranged on the side walls of the frame plate 701. The four sliders 702 are slidably connected to the frame plate 701. The middle of the slider 702 is slidably connected to a bottom frame 703, and the bottom frame 703 is fixedly connected to the lower mold 5.

[0038] The outer surface of one frame plate 701 is fixedly connected with a turning shaft 704, and the outer surface of the other frame plate 701 is fixedly connected with a connecting shaft 705. The turning shaft 704 and the connecting shaft 705 are both rotatably connected with a disk 706. The inside of the disk 706 is fixedly connected with a semicircular ring tube 707. The turning shaft 704 and the connecting shaft 705 are both fixedly connected with a swing rod 708. One end of the swing rod 708 away from the turning shaft 704 and the connecting shaft 705 is movably sleeved on the semicircular ring tube 707. Two springs 712 are arranged on both sides of the slider 702. The springs 712 are movably sleeved on the frame plate 701. The semicircular ring tube 707 is movably sleeved with a spring 3 713.

[0039] The bottom of the frame plate 701 is slidably connected with a push stop head 709, and the top side of the push stop head 709 is rotatably connected with a roller 710. The connection between the push stop head 709 and the frame plate 701 is movably sleeved with a spring 711;

[0040] In this embodiment, after the lower mold 5 is fitted with the upper mold 4, the distance between the top surface of the push stop head 709 and the lower surface of the upper mold 4 is equal to the thickness of the lower mold 5, so that the lower mold 5 is pressed upward after being fitted with the upper mold 4. After the lower mold 5 is fitted with the upper mold 4, the roller 710 is disconnected from the inclined surface at the bottom end of the limit rod 6.

[0041] In this embodiment, the two semicircular ring tubes 707 and the two springs 713 are arranged with one side facing upward and the other side facing downward, and the two swing rods 708 are arranged in different directions according to the trajectories of the flip shaft 704 and the connecting shaft 705, which can prevent the lower mold 5 from tilting during the up and down movement;

[0042] Embodiment 2:

[0043] The clamping mechanism 9 includes a swing arm 901, which is rotatably mounted on the operating table 1, one end of the swing arm 901 is fixedly connected to a locking sleeve 902, the locking sleeve 902 is movably connected to a locking rod 903, the top of the locking rod 903 is fixedly connected to the mounting plate 3, one end of the swing arm 901 is fixedly connected to a vertical rod 904, the swing arm 901 is rotatably connected to transmission rods 905 on both sides of the vertical rod 904, the upper part of the vertical rod 904 is slidably connected to a lifter 906, and the bottom of the lifter 906 is rotatably connected to There is a control wheel 907, the bottom of the lock rod 903 is telescopically connected with a clamp head 908, the bottom of the lock sleeve 902 is symmetrically provided with notches 909, the surface of the clamp head 908 is provided with an inclined groove 910, and a through hole 911 is provided through the swing arm 901. The top of the vertical rod 904 is fixedly connected to the top of the lock sleeve 902, and the upper part of the vertical rod 904 is movably sleeved with a spring 912. One end of the transmission rod 905 is arranged in a hook shape, which is used to prevent the transmission rod 905 from being separated from the cross bar 802 on the output shaft 801.

[0044] The upper opening of the lock sleeve 902 is horn-shaped, and its function is to match the lock rod 903. The inner diameter of the lock sleeve 902 is the same as the outer diameter of the lock rod 903.

[0045] The cylinder 8 is movably connected to an output shaft 801, the top of the output shaft 801 is fixedly connected to a cross bar 802, and a lifting piece 803 is rotatably connected to the output shaft 801 below the cross bar 802, and the top surface of the lifting piece 803 contacts the bottom of the swing arm 901;

[0046] In this embodiment, a guide groove is provided on the vertical rod 904, so as to enable the lifter 906 to slide vertically upward along the track formed by the guide groove during the upward sliding process, thereby preventing the lifter 906 from being disconnected from the transmission rod 905;

[0047] In this embodiment, when the control wheel 907 moves upward from the notch 909, its surface always fits with the surface of the locking rod 903, and an elastic connection structure is provided between the clamping head 908 and the locking rod 903, so that the clamping head 908 can clamp the locking sleeve 902;

[0048] The use method and advantages of the present invention: The plasticizer used for manufacturing high-quality metal castings has the following working process:

[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 As shown:

[0050] S1: Before casting begins, the cylinder 8 is started, and the output shaft 801 connected to the output end of the cylinder 8 continues to extend obliquely upward. The lifting piece 803 rotatably installed on the output shaft 801 supports the swing arm 901 to lift upward, and the swing arm 901 drives the lower mold 5 to move upward through the mounting mechanism 7. During the process, the flip shaft 704 rotates in the demoulding guide groove 10 to flip the lower mold 5 back to its original position. When the lower mold 5 and the upper mold 4 gradually approach each other, the edge of the lower mold 5 contacts the inclined surface at the bottom end of the four limit rods 6. According to the relative position of the lower mold 5, the lower mold 5 is adapted to the surface of the limit rods 6 to move to adjust the relative position with the upper mold 4. Through the connection relationship between the bottom frame 703 and the frame plate 701, the bottom frame 703 drives the lower mold 5 to adjust its position. Through the sliding connection between the bottom frame 703 and the slider 702, the lower mold 5 can move slightly to the left and right sides. Through the sliding connection between the slider 702 and the frame plate 701, the lower mold 5 can move slightly to the front and rear sides. After the lower mold 5 is moved and the contact with the inclined surface at the bottom end of the limiting rod 6 is broken, the four sides of the lower mold 5 are flush with the upper mold 4, and the lower mold 5 continues to move upward. During the continued movement, the lower mold 5 is relatively close to the upper mold 4 and the four sides are always kept flush. While the lower mold 5 moves upward, the surface of the push stop head 709 contacts the inner surface of the limiting rod 6. During the upward movement along the inner surface of the limiting rod 6, the four push stop heads 709 slide on the frame plate 701 toward the middle of the frame plate 701 and relatively approach each other. During the process, the spring 1 711 is gradually compressed, and because the tops of the opposite sides of the four push stop heads 709 are set as inclined surfaces, when the push stop heads 709 approach each other, their inclined surfaces contact the bottom side edges of the lower mold 5. In the process of being continuously pushed by the inclined surface at the bottom end of the limiting rod 6, the four push stop heads 709 are stuck at the bottom of the lower mold 5, supporting the lower mold 5, so that the lower mold 5 and the upper mold 4 are kept in a close contact state, and the position deviation caused by the assembly between the two molds is corrected.

[0051] S2: Before the lower mold 5 is fitted with the upper mold 4, following the upward swing of the swing arm 901, the lock sleeve 902 on the swing arm 901 compresses the two clamps 908 on the lock rod 903 toward the inside of the lock rod 903 through the trumpet opening at the top thereof when following the movement. After the outermost sides of the two clamps 908 are flush with the outer wall of the lock rod 903, the lock rod 903 extends into the inside of the lock sleeve 902. When the bottom end of the lock rod 903 touches the bottom end of the lock sleeve 902, the swing arm 901 stops moving further, and the lower mold 5 is fitted with the upper mold 4. Subsequently, the two clamps 908 of the lock rod 903 pop out and pass through the inside of the lock sleeve 902 through the notch opened on the lock sleeve 902, so that the swing arm 901 and the mounting plate 3 remain in a relatively static state, and the position deviation of the lower mold 5 and the upper mold is prevented. After the lower mold 5 is fitted with the upper mold 4, the metal liquid for casting is injected through the pouring port opened at the front end of the mold to perform the casting operation;

[0052] S3: When the casting is completed and the two molds need to be opened for demoulding, the cylinder 8 is started to work, and the output shaft 801 installed at the output end of the cylinder 8 is retracted inwardly. During the process, when the cross bar 802 moves, the transmission rod 905 is pulled downward, so that the other end of the transmission rod 905 is tilted upward. During the process, the transmission rod 905 moves the lifter 906 upward, and the lifter 906 slides upward on the vertical rod 904 and compresses the spring four 912. During the process, the control wheel 907 rolls upward at the notch 909 of the lock sleeve 902, and when it contacts the clamp head 908, it continues to move upward along the inclined groove 910 provided on the clamp head 908, so that the clamp head 908 gradually moves toward the inside of the locking rod 903 and is retracted. When the lifter 906 continues to move upward, the surface of the control wheel 907 contacts the plane on the clamp head 908, and the clamp head 908 is completely retracted to the locking rod 903. 704 moves downwardly along the demoulding guide groove 10, passes through the turning point of the demoulding guide groove 10, and the end of the flip shaft 704 away from the contact with the disc 706 is temporarily retained at the corner of the demoulding guide groove 10, and the flip shaft 704 rotates ninety degrees and flips the lower mold 5 ninety degrees. When continuing to move downward, the flip shaft 704 flips ninety degrees again along the trajectory of the demoulding guide groove 10, so that the lower mold 5 is flipped one hundred and eighty degrees as a whole. When flipping, the flip shaft 704 and the swing rod 708 on the connecting shaft 705 compress the spring three 713, and the finished casting completed in the lower mold 5 is thrown out of the lower mold 5 and falls on the operating table 1 during the flipping process.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A plasticizer for manufacturing high-quality metal castings, characterized in that: The invention comprises an operating table (1), wherein two sides of the top of the operating table (1) are fixedly mounted with a stand (2), the top of the stand (2) is fixedly connected with a mounting plate (3), the bottom of the mounting plate (3) is fixedly connected with an upper mold (4), a lower mold (5) is arranged below the upper mold (4), and limiting rods (6) are arranged around the upper mold (4) and the lower mold (5), the top of the limiting rod (6) is fixedly connected with the mounting plate (3), the inner surface of the limiting rod (6) is respectively in contact with the surface of the upper mold (4) and the lower mold (5), a mounting mechanism (7) is movably arranged on the stand (2), and the mounting mechanism (7) comprises a frame plate (701), and the frame plate (701) is symmetrically arranged on two sides of the bottom of the lower mold (5), a cylinder (8) is fixedly mounted inside the operating table (1), and a clamping mechanism (9) is arranged above the cylinder (8); The left and right sides of the stand (2) are respectively penetrated by a demoulding guide groove (10) and an adaptation guide groove (11); The mold locking mechanism (9) comprises a swing arm (901), the swing arm (901) being rotatably mounted on the operating table (1), one end of the swing arm (901) being fixedly connected to a locking sleeve (902), the interior of the locking sleeve (902) being movably connected to a locking rod (903), the top of the locking rod (903) being fixedly connected to a mounting plate (3), one end of the swing arm (901) being fixedly connected to a vertical rod (904), transmission rods (905) being rotatably connected to both sides of the vertical rod (904) on the swing arm (901), a lifter (906) being slidably connected to the upper part of the vertical rod (904), and the lifter (906) being slidably connected to the upper part of the vertical rod (904). The bottom of the device (906) is rotatably connected to a control wheel (907), the bottom of the locking rod (903) is telescopically connected to a clamping head (908), notches (909) are symmetrically provided on both sides of the bottom of the locking sleeve (902), an inclined groove (910) is provided on the surface of the clamping head (908), a through hole (911) is provided through the swing arm (901), the top of the vertical rod (904) is fixedly connected to the top of the locking sleeve (902), a spring four (912) is movably sleeved on the upper part of the vertical rod (904), and the swing arm (901) drives the lower mold (5) to move upward through the mounting mechanism (7).

2. A plasticizer for manufacturing high-quality metal castings according to claim 1, characterized in that: Four sliders (702) are symmetrically arranged on the side wall of the frame plate (701), the four sliders (702) are slidably connected to the frame plate (701), the middle part of the slider (702) is slidably connected to a bottom frame (703), and the bottom frame (703) is fixedly connected to the lower mold (5).

3. A plasticizer for manufacturing high-quality metal castings according to claim 2, characterized in that: The outer surface of one of the frame plates (701) is fixedly connected to a turning shaft (704), and the outer surface of the other frame plate (701) is fixedly connected to a connecting shaft (705). A disk (706) is rotatably connected to both the turning shaft (704) and the connecting shaft (705). A semicircular ring tube (707) is fixedly connected inside the disk (706). A swing rod (708) is fixedly connected to both the turning shaft (704) and the connecting shaft (705). One end of the swing rod (708) away from the turning shaft (704) and the connecting shaft (705) is movably sleeved on the semicircular ring tube (707).

4. A plasticizer for manufacturing high-quality metal castings according to claim 3, characterized in that: Spring 2 (712) is provided on both sides of the slider (702), and the spring 2 (712) is movably sleeved on the frame plate (701), and spring 3 (713) is movably sleeved on the semicircular ring tube (707).

5. A plasticizer for manufacturing high-quality metal castings according to claim 4, characterized in that: The bottom of the frame plate (701) is slidably connected to a push stop head (709), one side of the top of the push stop head (709) is rotatably connected to a roller (710), and a spring (711) is movably sleeved at the connection between the push stop head (709) and the frame plate (701).

6. A plasticizer for manufacturing high-quality metal castings according to claim 1, characterized in that: An output shaft (801) is movably connected inside the cylinder (8), a cross bar (802) is fixedly connected to the top of the output shaft (801), a lifting plate (803) is rotatably connected to the output shaft (801) below the cross bar (802), and a top surface of the lifting plate (803) contacts the bottom of the swing arm (901).

7. A plasticizer for manufacturing high-quality metal castings according to claim 3, characterized in that: The flip shaft (704) is slidably mounted in the demoulding guide groove (10), and the connecting shaft (705) is slidably mounted in the adaptation guide groove (11).

8. The plasticizer for manufacturing high-quality metal castings according to claim 1, characterized in that: The inner sides of the bottom end of the limiting rod (6) are provided with inclined surfaces, which are used to assist the lower mold (5) and the upper mold (4) to dock smoothly.

9. The plasticizer for manufacturing high-quality metal castings according to claim 3, characterized in that: One end of the transmission rod (905) is arranged in a hook shape, and its function is to prevent it from being separated from the cross bar (802) on the output shaft (801).

10. The plasticizer for manufacturing high-quality metal castings according to claim 1, characterized in that: The opening at the top of the locking sleeve (902) is flared and functions to match the locking rod (903). The inner diameter of the locking sleeve (902) is the same as the outer diameter of the locking rod (903).

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