Vacuum negative pressure casting mold plate moving trolley

Abstract

The utility model belongs to the field of vacuum negative pressure casting, and particularly relates to a vacuum negative pressure casting mold plate moving trolley which comprises a trolley body, and four moving wheels are installed at the bottom of the trolley body. A pair of hydraulic cylinders is mounted on the surface of the vehicle body; the output end of the hydraulic cylinder is rotationally connected with a connecting seat; the connecting seat is rotationally connected with the vehicle body; a connecting frame is fixedly connected between the pair of connecting seats; a plurality of mold disc units are arranged in the connecting frame; a plurality of crystallizers are arranged in each mold disc unit; a fixing assembly used for installing the mold disc unit is arranged in the connecting frame. By arranging the hydraulic cylinder, the device can turn over the mold disc unit after casting molding, so that the mold disc unit is rapidly switched from a casting rod feeding mode to a rod hanging ending mode, and the demolding efficiency of the device on a casting is improved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum negative pressure casting, specifically a vacuum negative pressure casting mold plate moving trolley. Background Technology

[0002] Vacuum casting is a method of producing castings by using a vacuum system to create negative pressure within a crystallizer, drawing in liquid metal. The basic principle is to immerse a crystallizer connected to a vacuum system into the liquid metal. A vacuum device (such as a vacuum pump or jet pipe) creates negative pressure within the crystallizer, drawing in the liquid metal. Because the crystallizer's inner wall is cooled by circulating water, the liquid metal solidifies sequentially from the center of the crystallizer under vacuum, ultimately forming a casting.

[0003] In vacuum casting, the mold plate is the component that supports the crystallizer and participates in the casting process. It is typically connected to the casting trolley for easy movement and position adjustment during casting. The crystallizer, located inside the mold plate, is the key component in vacuum casting and is used to shape the casting. The crystallizer contains a crystallizer unit and a clamping valve. The clamping valve generates negative pressure, rapidly drawing molten metal into the crystallizer. The crystallizer unit is responsible for ensuring the shape and dimensional accuracy of the casting during solidification.

[0004] Most existing mobile casting machines cannot quickly switch between casting and demolding modes during vacuum casting, which reduces the demolding efficiency of castings during vacuum casting.

[0005] Therefore, a vacuum negative pressure casting mold plate moving trolley is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A vacuum negative pressure casting mold plate moving trolley of this utility model includes a trolley body, four moving wheels installed at the bottom of the trolley body; a pair of hydraulic cylinders are installed on the surface of the trolley body; the output end of the hydraulic cylinders is rotatably connected to a connecting seat; the connecting seat and the trolley body are rotatably connected; a connecting frame is fixedly connected between the pair of connecting seats; multiple mold plate units are provided inside the connecting frame; multiple crystallizers are provided inside each mold plate unit; a fixing component for installing the mold plate units is provided inside the connecting frame; by setting up hydraulic cylinders, the device can flip the mold plate units after casting to quickly switch the mold plate units from the casting rod feeding mode to the end lifting rod mode, thereby accelerating the demolding efficiency of the device for castings.

[0008] Preferably, the fixing assembly includes a pair of positive and negative lead screws; the positive and negative lead screws are symmetrically distributed and rotatably connected inside the connecting frame; multiple pairs of sliders are threadedly connected to the middle of the positive and negative lead screws; each pair of sliders is symmetrically arranged and located on both sides of the mold plate unit; the inner wall of the slider is provided with a cavity for restricting the mold plate unit; the surface of the connecting frame is provided with a pair of handles for rotating the positive and negative lead screws; through the cooperation of the positive and negative lead screws and the sliders, the sliders can fix and install mold plate units of different sizes under the transmission action of the positive and negative lead screws, improving the flexibility and adaptability of the device when installing the mold plate unit.

[0009] Preferably, the handle and the connecting frame are rotatably connected; the handle end is provided with a worm; the worm is located inside the connecting frame and is rotatably connected to the connecting frame; the middle of the positive and negative lead screws is provided with a worm wheel; the worm wheel and the worm are meshed; the handle and the worm are threadedly connected; when the positive and negative lead screws are operated by the handle, rotating the handle will cause the worm to rotate accordingly. When the worm rotates, it will mesh with the worm wheel, so that the positive and negative lead screws rotate under the meshing action of the worm and the worm wheel. Because the transmission between the worm and the worm wheel has self-locking property, it can effectively reduce the situation where the mold unit squeezes the slider when the device flips the connecting frame, causing the positive and negative lead screws to rotate, thereby improving the stability of the slider fixing the mold unit. At the same time, because the worm and the handle are threadedly connected, the handle can be unscrewed from the worm after use, so that the handle will not hinder the flipping of the connecting frame.

[0010] Preferably, a spring telescopic rod is fixedly connected to the inner wall of the cavity of the slider; a horizontal plate is fixedly connected to the bottom of the spring telescopic rod; a plurality of balls are rotatably connected to the bottom of the horizontal plate; when the mold unit enters the inner cavity of the slider, the balls will press against the outer wall of the mold unit under the elastic force of the spring telescopic rod along with the horizontal plate, and the balls will rotate during the pressing process, reducing friction and wear between the mold unit and the slider when the mold unit enters the cavity.

[0011] Preferably, mounting plates are symmetrically fixed to the inner wall of the vehicle body; multiple damping spring shock absorbers are fixed to the top of the mounting plates; and buffer plates are fixed to the top of the damping spring shock absorbers. By setting up damping spring shock absorbers and buffer plates, when the device drives the connecting frame to flip via a hydraulic cylinder, the connecting frame will fall onto the surface of the vehicle body and come into contact with the buffer plate. The buffer plate will transmit the impact applied by the connecting frame to the damping spring shock absorbers and put the damping spring shock absorbers in a compressed state. When the damping spring shock absorbers are compressed, they will absorb the impact energy and then transmit the attenuated impact to the mounting plate and the vehicle body, reducing the impact on the vehicle body when the connecting frame flips.

[0012] Preferably, the bottom of the buffer plate is fixedly connected to multiple uprights; the uprights and the mounting plate are through-connected and slidably connected; by setting the uprights, when the buffer plate moves under the squeezing action of the connecting frame, it will be guided by the uprights and the mounting plate, reducing the offset of the buffer plate when squeezed by the connecting frame and reducing the friction between the buffer plate and other components when it moves.

[0013] The advantages of this utility model are:

[0014] 1. The vacuum negative pressure casting mold plate moving trolley of this utility model, by setting a hydraulic cylinder, enables the device to flip the mold plate unit after casting, so as to quickly switch the mold plate unit from the casting rod feeding mode to the end lifting rod mode, thereby accelerating the demolding efficiency of the device for castings.

[0015] 2. The vacuum negative pressure casting mold plate moving trolley described in this utility model, through the cooperation of positive and negative lead screws and sliders, enables the slider to fix and install mold plate units of different sizes under the transmission action of the positive and negative lead screws, thereby improving the flexibility and adaptability of the device when installing mold plate units. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main body of this utility model;

[0018] Figure 2 This is a schematic diagram of the vehicle body structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the connecting frame in this utility model;

[0020] Figure 4 This is a schematic diagram of the slider structure in this utility model;

[0021] Figure 5 This is a schematic diagram of the horizontal plate in this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the buffer plate in this utility model.

[0023] In the diagram: 1. Vehicle body; 12. Moving wheel; 13. Hydraulic cylinder; 14. Connecting seat; 15. Connecting frame; 16. Mold unit; 17. Crystallizer; 2. Positive and negative lead screws; 22. Slider; 23. Handle; 3. Worm gear; 32. Worm wheel; 4. Spring telescopic rod; 42. Horizontal plate; 43. Ball bearing; 5. Mounting plate; 52. Damping spring shock absorber; 53. Buffer plate; 6. Upright pole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] Specific implementation examples are given below.

[0026] Please see Figures 1 to 6 As shown in the embodiment of this utility model, a vacuum negative pressure casting mold plate moving trolley includes a trolley body 1, with four moving wheels 12 mounted on the bottom of the trolley body 1; a pair of hydraulic cylinders 13 are mounted on the surface of the trolley body 1; the output end of each hydraulic cylinder 13 is rotatably connected to a connecting seat 14; the connecting seat 14 and the trolley body 1 are rotatably connected; a connecting frame 15 is fixedly connected between the pair of connecting seats 14; multiple mold plate units 16 are provided inside the connecting frame 15; multiple crystallizers 17 are provided inside each mold plate unit 16; a fixing component for mounting the mold plate units 16 is provided inside the connecting frame 15; the trolley body 1 is the main body of the device and is made of sturdy and durable high-quality steel to ensure stability and durability under heavy loads and long-term operation; the moving wheels 12 are used for the smooth and accurate movement of the trolley body 1 within the casting workshop, and the moving wheels 12 should have sufficient load-bearing capacity. The device is designed to withstand long-term, high-intensity operation with high strength and durability. During use, the hydraulic cylinder 13 is activated to push the connecting seat 14, causing the connecting seat 14 to rotate along with the connecting frame 15 until the connecting frame 15 rests on the surface of the vehicle body 1 and is parallel to the ground. The mold unit 16 can be installed inside the cavity of the connecting frame 15 using a fixing assembly. Molten aluminum can be injected into the mold unit 16 during operation. After the workpiece cools and solidifies, the hydraulic cylinder 13 can be activated to flip the connecting frame 15 and remove the aluminum rod from the crystallizer 17. Finally, the crystallizer 17 can be cleaned and maintained, or used for subsequent production operations, according to production needs. By using the hydraulic cylinder 13, the device can flip the mold unit 16 after casting, quickly switching it from the casting rod feeding mode to the end-of-life lifting mode, thus accelerating the demolding efficiency of the casting.

[0027] Please see Figure 3and Figure 4 As shown, the fixing assembly includes a pair of positive and negative lead screws 2; the positive and negative lead screws 2 are symmetrically distributed and rotatably connected inside the connecting frame 15; multiple pairs of sliders 22 are threadedly connected to the middle of the positive and negative lead screws 2; each pair of sliders 22 is symmetrically arranged and located on both sides of the mold plate unit 16; the inner wall of the sliders 22 has a cavity for restricting the mold plate unit 16; the surface of the connecting frame 15 is provided with a pair of handles 23 for rotating the positive and negative lead screws 2; when installing the mold plate unit 16, the crystallizer 17 can be placed sequentially inside the connecting frame 15, at which time... The sliders 22 are located on both sides of the crystallizer 17. The positive and negative lead screws 2 can be controlled by rotating the handle 23. When the positive and negative lead screws 2 are rotated, each pair of sliders 22 will move towards each other, so that the sliders 22 can restrict the mold unit 16 through the cavity, so as to realize the quick installation of the mold unit 16 by the device. Through the cooperation of the positive and negative lead screws 2 and the sliders 22, the sliders 22 can fix the mold unit 16 of different sizes under the transmission action of the positive and negative lead screws 2, improving the flexibility and adaptability of the device when installing the mold unit 16.

[0028] Please see Figure 4 As shown, the handle 23 and the connecting frame 15 are rotatably connected; a worm 3 is provided at the end of the handle 23; the worm 3 is located inside the connecting frame 15 and is rotatably connected to the connecting frame 15; a worm wheel 32 is provided in the middle of the forward and reverse lead screw 2; the worm wheel 32 and the worm 3 are meshed; the handle 23 and the worm 3 are threadedly connected; when the forward and reverse lead screw 2 is operated by the handle 23, rotating the handle 23 will cause the worm 3 to rotate accordingly, and when the worm 3 rotates, it will mesh with the worm wheel 32, causing the forward and reverse lead screws to rotate. The lead screw 2 rotates under the meshing action of the worm 3 and the worm wheel 32. Because the transmission between the worm 3 and the worm wheel 32 has self-locking properties, it can effectively reduce the situation where the mold unit 16 squeezes the slider 22 when the device flips the connecting frame 15, causing the lead screw 2 to rotate in both directions. This improves the stability of the slider 22 fixed to the mold unit 16. At the same time, the worm 3 and the handle 23 are connected by threads, so that the handle 23 can be unscrewed from the worm 3 after use, so that the handle 23 will not hinder the flipping of the connecting frame 15.

[0029] Please see Figure 5 As shown, a spring telescopic rod 4 is fixedly connected to the inner wall of the cavity of the slider 22; a horizontal plate 42 is fixedly connected to the bottom of the spring telescopic rod 4; a plurality of balls 43 are rotatably connected to the bottom of the horizontal plate 42; when the mold unit 16 enters the cavity of the slider 22, the balls 43 will press against the outer wall of the mold unit 16 under the elastic force of the spring telescopic rod 4 along with the horizontal plate 42. The balls 43 will rotate during the pressing process, reducing the friction and wear between the mold unit 16 and the slider 22 when the mold unit 16 enters the cavity.

[0030] Please see Figure 1 and Figure 6 As shown, mounting plates 5 are symmetrically fixed to the inner wall of the vehicle body 1; multiple damping spring shock absorbers 52 are fixed to the top of the mounting plates 5; and buffer plates 53 are fixed to the top of the damping spring shock absorbers 52. By setting up the damping spring shock absorbers 52 and the buffer plates 53, when the device drives the connecting frame 15 to flip through the hydraulic cylinder 13, the connecting frame 15 will fall onto the surface of the vehicle body 1 and come into contact with the buffer plates 53. The buffer plates 53 will transmit the impact applied by the connecting frame 15 to the damping spring shock absorbers 52 and put the damping spring shock absorbers 52 in a compressed state. When the damping spring shock absorbers 52 are compressed, they will absorb the energy of the impact and then transmit the attenuated impact to the mounting plates 5 and the vehicle body 1, reducing the impact applied to the vehicle body 1 when the connecting frame 15 flips.

[0031] Please see Figure 6 As shown, multiple uprights 6 are fixedly connected to the bottom of the buffer plate 53; the uprights 6 and the mounting plate 5 are through-connected and slidably connected; by setting the uprights 6, when the buffer plate 53 moves under the squeezing action of the connecting frame 15, it will be guided by the uprights 6 and the mounting plate 5, reducing the displacement of the buffer plate 53 when squeezed by the connecting frame 15, and reducing the friction between the buffer plate 53 and other components when it moves.

[0032] Working Principle: The vehicle body 1 is the main body of the device, made of sturdy and durable high-quality steel to ensure stability and durability under heavy loads and long-term operation. The moving wheels 12 are used for the smooth and accurate movement of the vehicle body 1 within the foundry. The moving wheels 12 should have sufficient load-bearing capacity and wear resistance to adapt to long-term, high-intensity operation requirements. During use, the hydraulic cylinder 13 is activated to push the connecting seat 14, causing the connecting seat 14 to rotate along with the connecting frame 15 until the connecting frame 15 rests on the surface of the vehicle body 1 and is parallel to the ground. The mold plate unit 16 can be installed inside the cavity of the connecting frame 15 using a fixing component. Molten aluminum can be injected into the mold plate unit 16 during use. After the workpiece cools and solidifies, the process can begin. The hydraulic cylinder 13 is used to flip the connecting frame 15 and remove the aluminum rods from the crystallizer 17. Finally, the crystallizer 17 can be cleaned and maintained or used for subsequent production operations according to production needs. When installing the mold plate unit 16, the crystallizer 17 can be placed sequentially inside the connecting frame 15. At this time, the sliders 22 will be located on both sides of the crystallizer 17. The positive and negative lead screws 2 can be controlled by rotating the handle 23. When the positive and negative lead screws 2 rotate, each pair of sliders 22 will move towards each other, allowing the sliders 22 to restrict the mold plate unit 16 through the cavity, thus achieving rapid installation of the mold plate unit 16. When the positive and negative lead screws 2 are controlled by the handle 23, rotating the handle 23 will cause the worm gear 3 to rotate accordingly. When rod 3 rotates, it meshes with worm gear 32, causing the forward and reverse lead screw 2 to rotate under the meshing action of worm 3 and worm gear 32. Because the transmission between worm 3 and worm gear 32 has self-locking properties, it can effectively reduce the situation where the mold unit 16 squeezes the slider 22 when the device flips the connecting frame 15, causing the forward and reverse lead screw 2 to rotate, thus improving the stability of the slider 22 fixed to the mold unit 16. At the same time, the worm 3 and handle 23 are threadedly connected, so that the handle 23 can be unscrewed from the worm 3 after use, so that the handle 23 will not hinder the flipping of the connecting frame 15. When the mold unit 16 enters the internal cavity of the slider 22, the ball 43 will squeeze the mold under the elastic force of the spring telescopic rod 4 along with the horizontal plate 42. On the outer wall of unit 16, the ball bearing 43 will rotate during the extrusion process, reducing friction and wear between the mold unit 16 and the slider 22 when the mold unit 16 enters the cavity; by setting the damping spring damper 52 and the buffer plate 53, when the device drives the connecting frame 15 to flip through the hydraulic cylinder 13, the connecting frame 15 will fall onto the surface of the vehicle body 1 and contact the buffer plate 53. The buffer plate 53 will transmit the impact applied by the connecting frame 15 to the damping spring damper 52 and put the damping spring damper 52 in a compressed state. When the damping spring damper 52 is compressed, it will absorb the impact energy, and then transmit the attenuated impact to the mounting plate 5 and the vehicle body 1, reducing the impact applied to the vehicle body 1 when the connecting frame 15 flips;By setting the upright 6, when the buffer plate 53 moves under the pressure of the connecting frame 15, it will be guided by the upright 6 and the mounting plate 5, reducing the displacement of the buffer plate 53 when it is pressed by the connecting frame 15, and reducing the friction between the buffer plate 53 and other components when it moves.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A vacuum negative pressure casting mold plate moving trolley, comprising a trolley body (1), characterized in that: The bottom of the vehicle body (1) is equipped with four moving wheels (12); a pair of hydraulic cylinders (13) are installed on the surface of the vehicle body (1); the output end of the hydraulic cylinder (13) is rotatably connected to a connecting seat (14); the connecting seat (14) and the vehicle body (1) are rotatably connected; a connecting frame (15) is fixedly connected between the pair of connecting seats (14); multiple mold plate units (16) are provided inside the connecting frame (15); multiple crystallizers (17) are provided inside each mold plate unit (16); a fixing component for installing the mold plate unit (16) is provided inside the connecting frame (15).

2. The vacuum negative pressure casting mold plate moving trolley according to claim 1, characterized in that: The fixing assembly includes a pair of positive and negative lead screws (2); the positive and negative lead screws (2) are symmetrically distributed and rotatably connected inside the connecting frame (15); the middle of the positive and negative lead screws (2) is threaded with multiple pairs of sliders (22); each pair of sliders (22) is symmetrically arranged and located on both sides of the mold plate unit (16); the inner wall of the sliders (22) is provided with cavities for limiting the mold plate unit (16); the surface of the connecting frame (15) is provided with a pair of handles (23) for rotating the positive and negative lead screws (2).

3. The vacuum negative pressure casting mold plate moving trolley according to claim 2, characterized in that: The handle (23) and the connecting frame (15) are rotatably connected; the end of the handle (23) is provided with a worm (3); the worm (3) is located inside the connecting frame (15) and is rotatably connected with the connecting frame (15); the middle part of the positive and negative lead screw (2) is provided with a worm wheel (32); the worm wheel (32) and the worm (3) are meshed; the handle (23) and the worm (3) are threadedly connected.

4. The vacuum negative pressure casting mold plate moving trolley according to claim 3, characterized in that: A spring telescopic rod (4) is fixedly connected to the inner wall of the cavity of the slider (22); a horizontal plate (42) is fixedly connected to the bottom of the spring telescopic rod (4); and multiple ball bearings (43) are rotatably connected to the bottom of the horizontal plate (42).

5. The vacuum negative pressure casting mold plate moving trolley according to claim 4, characterized in that: The inner wall of the vehicle body (1) is symmetrically fixed with mounting plates (5); a plurality of damping spring shock absorbers (52) are fixed to the top of the mounting plates (5); and a buffer plate (53) is fixed to the top of the damping spring shock absorbers (52).

6. The vacuum negative pressure casting mold plate moving trolley according to claim 5, characterized in that: The bottom of the buffer plate (53) is fixed with multiple uprights (6); the uprights (6) and the mounting plate (5) are connected through each other and are slidably connected.

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