Four-station vertical sand-shooting horizontal molding machine

Abstract

The invention discloses a four-station vertical sand-shooting horizontal molding machine, which relates to the technical field of casting equipment, and comprises a sand-shooting molding machine body, a pressure regulating mechanism and a quick dismounting mechanism, by arranging the heat dissipation protection mechanism, height controllability and accurate adjustment of the grinding pressure on the surface of the sand mold are achieved, in the mechanism, a lead screw is in threaded fit with an adjusting plate, an extrusion spring is directly connected with the adjusting plate, a core mechanism of pressure adjustment is formed, and a user rotates the lead screw through a handle to adjust the grinding pressure on the surface of the sand mold. The adjusting plate is driven to finely move along the threaded guide rail, then the compression degree of the spring is adjusted, the acting force of the grinding disc on the surface of the sand mold is accurately controlled, and the arranged index plate and the scale ring provide real-time and visual pressure adjusting information, so that operation is more accurate and easy to control; and sand mold coating damage or uneven surface roughness caused by uneven pressure is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of casting equipment, and particularly to a four-station vertical sand shooting horizontal molding machine. Background Art

[0002] In the casting industry, sand mold molding is a process of filling molding sand into a mold box and compressing it to form a sand mold or sand core required for casting. This process directly determines the dimensional accuracy, surface quality, and structural integrity of the casting. The quality of the sand mold not only affects the appearance and dimensional accuracy of the casting but also influences the mechanical properties and service life of the casting. A high-quality sand mold can ensure that the molten metal maintains a stable shape during pouring and solidification, preventing defects such as porosity, inclusions, and deformation. In addition, the efficiency of sand mold molding directly affects the production rhythm and production capacity of the casting workshop. Traditional manual molding or simple mechanical molding methods are difficult to meet the requirements of modern large-scale casting production due to their cumbersome operations and low efficiency. With the development of casting technology, higher requirements are put forward for sand mold molding equipment. It is not only necessary to ensure the density and uniformity of the sand mold but also to improve the automation level to achieve an efficient, stable, and repeatable molding process. Therefore, sand mold molding equipment plays a bridging role in the casting production line and is a key link connecting design and finished products. Advanced sand mold molding equipment can effectively improve the quality of castings, reduce the rework rate, lower production costs, and promote the technological progress and industrial upgrading of the casting industry.

[0003] However, the existing four-station vertical sand shooting horizontal molding machine has the following deficiencies: 1. In traditional four-station vertical sand shooting horizontal molding equipment, the grinding pressure adjustment system is usually simply designed. Fixed compression springs or static limit blocks are generally used to control the force exerted by the grinding disc on the surface of the sand mold. This design is difficult to finely adjust according to the size, shape, or hardness of different sand molds. When the user needs to adjust the grinding pressure, they often have to rely on experience and achieve it by manually turning bolts, limit blocks, or replacing different elastic elements. The adjustment process is cumbersome, has poor repeatability, and lacks quantitative reference, easily causing defects such as local damage to the surface of the sand mold, uneven grinding depth, or coating peeling due to improper adjustment, seriously affecting the quality of the casting and the life of the mold. Although some equipment attempts to improve the adjustment ability by adding pre-tightening nuts or adjusting screws, it still cannot provide real-time feedback on the current pressure state and cannot meet the requirements of modern manufacturing for high precision and high stability.

[0004] 2. In the disassembly, installation, and maintenance process of the grinding disc, traditional molding equipment mostly adopts bolt fastening or bayonet locking structures. Manual use of special tools is required to complete the disassembly and replacement of the grinding disc. Such methods involve numerous operation steps, are time-consuming and laborious. Especially in scenarios where the equipment frequently switches workpiece models or operates continuously for a long time, the disassembly and installation efficiency is low, and the labor intensity is high, seriously affecting the overall production rhythm. Although some equipment has made improvements in the locking method, such as setting elastic sheet buckles or quick-release nuts, there are still problems such as poor locking, poor compatibility, short service life, and it is prone to faults such as eccentricity and uneven grinding caused by improper disassembly and installation, reducing the grinding quality and the finished product rate.

[0005] Therefore, we propose a four-station vertical sand shooting horizontal molding machine to facilitate the solution of the problems mentioned above. Summary of the Invention

[0006] The purpose of the present invention is to provide a four-station vertical sand shooting horizontal molding machine to solve the problems of inaccurate adjustment of traditional grinding pressure, easy damage to the sand mold, and cumbersome replacement of the grinding disc with low efficiency.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A four-station vertical sand shooting horizontal molding machine includes a sand shooting molding machine body, a pressure regulating mechanism, and a quick disassembly and installation mechanism. The pressure regulating mechanism is arranged inside the sand shooting molding machine body, and the quick disassembly and installation mechanism is arranged at the bottom of the pressure regulating mechanism; Pressure regulating mechanism, the pressure regulating mechanism includes a mounting plate, a transmission sleeve, a motor, a connecting plate, a limiting rod, a lead screw, a compression spring, an adjusting plate, and an index plate. The bottom end of the transmission sleeve is fixedly connected with a connecting plate, and the middle part of the lead screw is threadedly connected with an adjusting plate; Quick disassembly and installation mechanism, the quick disassembly and installation mechanism includes a slide rail, a locking plate, an unlocking plate, an empty slot, a locking frame, and a locking slot. The locking plate is slidably connected to the inner side of the slide rail. A limiting slot is opened at the bottom end of the unlocking plate, and a limiting member is slidably connected to the inner wall of the limiting slot. The bottom end of the locking frame is fixedly connected with a grinding disc, and a locking slot is opened in the middle of the locking frame.

[0008] Preferably, the bottom end of the compression spring is fixedly connected with a transmission plate, the top end of the transmission plate is connected to the top end of the slide rail, the bottom end of the connecting plate is fixedly connected with a limiting rod, the bottom end of the adjusting plate is fixedly connected with a compression spring, and a handle is arranged on one side of the lead screw.

[0009] Preferably, the handle is fixedly connected to the outer wall of the lead screw, and an index plate is fixedly connected to the outer side of the handle. The top end of the index plate is connected to the outer side of the handle.

[0010] Preferably, the bottom end of the connecting plate is fixedly connected with a scale ring, and the top end of the scale ring is sleeved on the bottom end of the connecting plate.

[0011] Preferably, a turntable is rotatably connected to the front surface of the sand shooting molding machine body. A molding sand mold workpiece is placed on the top end of the turntable, and the bottom end of the turntable is rotatably connected to the front surface of the sand shooting molding machine body through a rotating shaft.

[0012] Preferably, an electric elevator is provided inside the sand shooting molding machine body. The output end of the electric elevator is fixedly connected to the top end of the mounting plate, and the bottom end of the mounting plate is fixedly connected with a motor.

[0013] Preferably, the output end of the motor is fixedly connected to the bottom end of the inner wall of the transmission sleeve, and the top end of the transmission sleeve is rotatably connected to the bottom end of the mounting plate.

[0014] Preferably, the adjusting plate is vertically slidably connected to the limiting rod, and the top end of the limiting rod is fixedly connected to the bottom end of the connecting plate.

[0015] Preferably, the top end of the slide rail is fixedly connected to the bottom end of the transmission plate, and the top end of the unlocking plate is rotatably connected to the bottom end of the slide rail.

[0016] Preferably, an empty groove is formed at the bottom end of the unlocking plate. A transmission handle is fixedly connected to the bottom end of the unlocking plate. The transmission handle matches the size of the empty groove, and the top end of the transmission handle is connected to the bottom end of the unlocking plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the provided heat dissipation and protection mechanism, the present invention realizes high controllability and precise adjustment of the grinding pressure on the surface of the sand mold. In this mechanism, the lead screw is in threaded cooperation with the adjusting plate, and the compression spring is directly connected to the adjusting plate, constituting the core mechanism of pressure adjustment. The user rotates the lead screw through the handle, driving the adjusting plate to move finely along the threaded guide rail, thereby adjusting the compression degree of the spring and accurately controlling the acting force of the grinding disc on the surface of the sand mold. The equipped index plate and scale ring provide real-time and intuitive pressure adjustment information, making the operation more precise and easy to control, avoiding damage to the sand mold coating or uneven surface roughness caused by uneven pressure. In addition, the limiting rod provides a stable guiding support for the adjusting plate, ensuring the stability and repeatability during the adjustment process. Combined with the use of the electric elevator, the height of the grinding disc can be quickly adjusted to meet the requirements of different sand mold sizes and shapes, greatly improving the grinding efficiency and the quality of the finished product. This design not only improves the automation level of the equipment but also ensures uniform treatment and high-precision grinding of the sand mold surface, greatly guaranteeing the final quality and forming effect of the casting.

[0018] 2. Through the heat dissipation and protection mechanism set in the present invention, through the coordinated action of various components such as the slide rail, locking plate, unlocking plate, limiting groove and transmission handle, the stable locking and convenient unlocking of the grinding disc are realized. The user only needs to rotate the transmission handle installed at the bottom of the unlocking plate to drive the unlocking plate to rotate, and then drive the limiting member to slide through the limiting groove, and drive the locking plate to disengage from the locking groove in the locking frame to complete the unlocking operation of the grinding disc. When replacing a new grinding disc, the quick locking is also achieved through the reverse operation, eliminating the tediousness and time consumption brought by the disassembly and assembly of traditional tools. This mechanism is designed to be compatible with grinding discs of various specifications and models, with good versatility and adaptability, greatly improving the maintenance efficiency and production continuity of the equipment. At the same time, this quick replacement structure reduces the labor intensity of workers, ensures the stable operation of the equipment under high-load production conditions, effectively shortens the downtime, improves the overall operation efficiency, meets the diverse production needs, and promotes the modernization and intelligent development of the manufacturing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 6 is a schematic perspective view of a four-station vertical sand shooting horizontal molding machine proposed by the present invention; Figure 2 FIG. 9 is a schematic internal structure view of a four-station vertical sand shooting horizontal molding machine proposed by the present invention; Figure 3 FIG. 12 is a schematic structural view of the mounting plate part of a four-station vertical sand shooting horizontal molding machine proposed by the present invention; Figure 4 FIG. 15 is a schematic structural view of the bottom of the electric elevator of a four-station vertical sand shooting horizontal molding machine proposed by the present invention; Figure 5 FIG. 18 is a schematic structural view of the transmission sleeve part of a four-station vertical sand shooting horizontal molding machine proposed by the present invention; Figure 6 FIG. 21 is a four-station vertical sand shooting horizontal molding machine proposed by the present invention Figure 4 Enlarged view at A; Figure 7 FIG. 26 is a sectional view of the connecting plate part of a four-station vertical sand shooting horizontal molding machine proposed by the present invention; Figure 8 FIG. 29 is a four-station vertical sand shooting horizontal molding machine proposed by the present invention Figure 6 Enlarged view at B.

[0020] In the figure: 1. The main body of the sand shooting molding machine; 2. The turntable; 3. The sand molding workpiece; 4. The electric elevator; 5. The pressure regulating mechanism; 501. The mounting plate; 502. The transmission sleeve; 503. The motor; 504. The connecting plate; 505. The limiting rod; 506. The extrusion spring; 507. The lead screw; 508. The transmission plate; 509. The adjusting plate; 510. The scale ring; 511. The index plate; 512. The handle; 6. The grinding disc; 7. The quick disassembly and assembly mechanism; 701. The slide rail; 702. The locking plate; 703. The unlocking plate; 704. The limiting groove; 705. The limiting part; 706. The empty groove; 707. The transmission handle; 708. The locking frame; 709. The locking groove. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to the attached Figure 1 - attached Figure 8 As shown in the figure, the present invention provides a technical solution: a four-station vertical sand shooting horizontal molding machine, including the main body 1 of the sand shooting molding machine, the pressure regulating mechanism 5 and the quick disassembly and assembly mechanism 7. The pressure regulating mechanism 5 is arranged inside the main body 1 of the sand shooting molding machine, and the quick disassembly and assembly mechanism 7 is arranged at the bottom of the pressure regulating mechanism 5; The pressure regulating mechanism 5 includes a mounting plate 501, a transmission sleeve 502, a motor 503, a connecting plate 504, a limiting rod 505, a lead screw 507, an extrusion spring 506, an adjusting plate 509 and an index plate 511. The bottom end of the transmission sleeve 502 is fixedly connected with the connecting plate 504, and the middle part of the lead screw 507 is threadedly connected with the adjusting plate 509.

[0023] Example 1, according to Figures 1-7As shown, a drive plate 508 is fixedly connected to the bottom end of the extrusion spring 506. The top end of the drive plate 508 is connected to the top end of the slide rail 701. A limit rod 505 is fixedly connected to the bottom end of the connecting plate 504. The bottom end of the adjusting plate 509 is fixedly connected to the extrusion spring 506. A handle 512 is provided on one side of the lead screw 507. The handle 512 is fixedly connected to the outer wall of the lead screw 507. An index plate 511 is fixedly connected to the outer side of the handle 512. The top end of the index plate 511 is connected to the outer side of the handle 512. A scale ring 510 is fixedly connected to the bottom end of the connecting plate 504. The top end of the scale ring 510 is sleeved on the bottom end of the connecting plate 504. A turntable 2 is rotatably connected to the front of the sand shooting molding machine body 1. A molding sand mold workpiece 3 is placed on the top end of the turntable 2. The bottom end of the turntable 2 is rotatably connected to the front of the sand shooting molding machine body 1 through a rotating shaft. An electric elevator 4 is provided inside the sand shooting molding machine body 1. The output end of the electric elevator 4 is fixedly connected to the top end of the mounting plate 501. A motor 503 is fixedly connected to the bottom end of the inner wall of the drive sleeve 502. The top end of the drive sleeve 502 is rotatably connected to the bottom end of the mounting plate 501.

[0024] The effects achieved by the entire Embodiment 1 are as follows: It realizes the precise adjustment and stable control of the grinding pressure on the surface of the sand mold, greatly improving the grinding quality and operation convenience of the four-station vertical sand shooting horizontal molding machine. In terms of structure, a complete vertical pressure adjustment transmission path is formed among the transmission sleeve 502, the motor 503, the mounting plate 501, the adjusting plate 509, the limiting rod 505 and the compression spring 506. The motor 503 drives the screw rod 507 to rotate, driving the adjusting plate 509 to move axially along the thread, thereby realizing the precise compression of the compression spring 506. The lower end of the adjusting plate 509 is fixedly connected to the compression spring 506, and the bottom of the spring is connected to the transmission plate 508, and then applies force to the grinding mechanism, controlling the magnitude of the pressure applied to the surface of the sand mold from the source. By setting the handle 512 and the index plate 511, the user can flexibly rotate the screw rod 507 to achieve stepless pressure regulation without the aid of external tools. The cooperation between the index plate 511 and the scale ring 510 indicates the change in the adjustment angle and the number of turns, reflecting the rotation state of the screw rod 507 and the compression degree of the spring in real time, enabling the user to intuitively and accurately set the pressure required for grinding according to the material, hardness and thickness of the surface of the sand mold. The setting of the limiting rod 505 provides a stable vertical guiding effect for the adjusting plate 509, preventing the adjusting plate 509 from shaking or shifting during the adjustment process due to the rotation of the screw rod 507, effectively improving the stability of the overall structure and the reliability of pressure regulation. The output end of the electric elevator 4 is fixedly connected to the mounting plate 501, enabling it to drive the entire pressure adjustment mechanism 5 to perform precise lifting operations in the vertical direction, adapting to the needs of sand mold workpieces of different heights and shapes, avoiding manual adjustment errors, and improving the automation level of the equipment. The stable operation of the lifting mechanism is combined with the continuous adjustment of the grinding pressure, enabling the grinding disc 6 to act on the surface of the sand mold in a stable and uniform manner, avoiding quality problems caused by local over-grinding or insufficient pressure, and ensuring the flatness and consistency of the surface of the sand mold. Generally speaking, this embodiment forms a continuous linkage closed-loop control system from pressure adjustment to grinding output at the structural level, not only simplifying the operation process, improving the adjustment efficiency, but also greatly improving the accuracy and uniformity of sand mold grinding treatment. This structural design is particularly suitable for high-efficiency and high-quality casting production environments, and has good engineering application value and promotion prospects.

[0025] It should be noted that the transmission sleeve 502 is made of wear-resistant alloy steel. Its bottom end is fixedly connected with a connecting plate 504 by welding. The connecting plate 504 is made of high-strength aluminum alloy material, which combines rigidity and light weight. Its bottom end is also installed with a limiting rod 505 by screw connection. The limiting rod 505 is made of galvanized carbon steel, is arranged vertically and penetrates through the adjusting plate 509, and is used to guide the up and down movement of the adjusting plate 509 to prevent it from shifting or shaking. The middle part of the adjusting plate 509 is threadedly connected with the lead screw 507. When the lead screw 507 rotates, it drives the adjusting plate 509 to move along the thread axis, thereby applying a compressive force to the lower compression spring 506. The bottom end of the compression spring 506 is fixedly connected with a transmission plate 508. The transmission plate 508 is made of stainless steel material and is used to stably transmit the adjusting pressure to the grinding end. The outer wall of the lead screw 507 is fixedly connected with a handle 512. The user can manually rotate the handle 512 to adjust the pressure; an index plate 511 is also installed outside the handle 512. The top end of the index plate 511 is connected to the handle 512 by a snap connection. The bottom end of the connecting plate 504 is fixedly connected with a scale ring 510. The top end of the scale ring 510 is sleeved on the lower part of the connecting plate 504. The index plate 511 and the scale ring 510 are used in combination to accurately indicate the number of turns and angles of the rotation of the lead screw 507, which is convenient for intuitively reading the pressure adjustment state. In order to adapt to the height changes of sand molds of different specifications, the output end of the electric elevator 4 is fixedly connected to the top end of the mounting plate 501 by a flange structure. The electric elevator 4 controls the overall up and down movement of the mounting plate 501; a motor 503 is fixed to the bottom end of the mounting plate 501 by screws. The output shaft of the motor 503 is inserted into and fixed to the bottom end inner wall of the transmission sleeve 502 to provide stable power. The top end of the transmission sleeve 502 is rotatably connected to the bottom end of the mounting plate 501 through a bearing assembly to ensure a smooth transmission process without interference. In addition, a rotatable turntable 2 is provided on the front of the sand shooting molding machine body 1. The bottom end of the turntable 2 is connected to the body through a high-strength rotating shaft. The top end is used to place the molding sand mold workpiece 3, which has good load-bearing capacity and rotation accuracy, can realize the rapid switching of multiple stations, greatly improves the molding efficiency and the adaptation range of the equipment. The overall structure is reasonably configured and the assembly relationship is clear, ensuring the efficient and stable operation performance of the pressure adjustment mechanism 5.

[0026] Example 2, according to Figure 1 and Figure 8As shown, there is a quick disassembly and assembly mechanism 7, which includes a slide rail 701, a locking plate 702, an unlocking plate 703, an empty slot 706, a locking frame 708 and a locking slot 709. The inner side of the slide rail 701 is slidably connected with the locking plate 702. The bottom end of the unlocking plate 703 is provided with a limiting slot 704, and the inner wall of the limiting slot 704 is slidably connected with a limiting member 705. The bottom end of the locking frame 708 is fixedly connected with a grinding disc 6. A locking slot 709 is provided in the middle of the locking frame 708. The adjusting plate 509 is vertically slidably connected with the limiting rod 505. The top end of the limiting rod 505 is fixedly connected to the bottom end of the connecting plate 504. The top end of the slide rail 701 is fixedly connected to the bottom end of the transmission plate 508. The top end of the unlocking plate 703 is rotatably connected to the bottom end of the slide rail 701. An empty slot 706 is provided at the bottom end of the unlocking plate 703. The bottom end of the unlocking plate 703 is fixedly connected with a transmission handle 707. The transmission handle 707 matches the size of the empty slot 706. The top end of the transmission handle 707 is connected to the bottom end of the unlocking plate 703.

[0027] The effect achieved by the entire Embodiment 2 is as follows: It can realize the quick disassembly and replacement of the grinding disc 6, significantly improve the operation efficiency and operation convenience of the equipment during the multi-station shaping process. Through the mutual cooperation of multiple components such as the slide rail 701, the locking plate 702, the unlocking plate 703, the limiting slot 704, the limiting member 705, the locking frame 708 and the transmission handle 707, the fixing and releasing process of the grinding disc 6 no longer depends on the operation of traditional tools. Only by manually rotating the transmission handle 707 can all the disassembly and assembly steps be completed. The slide rail 701 is made of high-strength aluminum alloy material, with excellent guiding stability. Its inner side is slidably connected with the locking plate 702, and it can accurately realize the forward and backward movement of the locking plate 702 under the action of the limiting member 705. The unlocking plate 703 is rotatably connected to the bottom end of the slide rail 701 through the top end, and the limiting slot 704 provided at the bottom end is slidably matched with the limiting member 705 to ensure the smoothness and accuracy of the unlocking action driven by the transmission handle 707. When replacing the grinding disc 6, the operator can take out the transmission handle 707 from the empty slot 706 provided at the bottom end of the unlocking plate 703 and rotate it clockwise or counterclockwise, driving the unlocking plate 703 to deflect, and then making the limiting member 705 slide along the limiting slot 704, pushing the locking plate 702 out of the locking slot 709 of the locking frame 708, realizing the loose state of the grinding disc 6. At this time, the grinding disc 6 can be directly removed and replaced. After installing a new disc, only by rotating the transmission handle 707 in the reverse direction can the re-locking of the grinding disc 6 be completed. The whole process is rapid and convenient, significantly shortening the non-production time caused by replacing workpieces. The cooperation between the unlocking plate 703 and the limiting member 705 ensures the reliability of the unlocking action. At the same time, the plugging relationship between the locking slot 709 and the locking plate 702 is tight, effectively preventing the grinding disc 6 from loosening or shifting during the working process. In addition, this mechanism is compatible with various specifications of grinding discs 6, with good compatibility and expandability, suitable for different sand mold structures and surface treatment requirements, further enhancing the versatility and production adaptability of the equipment.

[0028] It should be noted that: It mainly includes multiple cooperating components such as a slide rail 701, a locking plate 702, an unlocking plate 703, an empty slot 706, a locking frame 708, and a locking slot 709. It is mainly used to achieve the quick installation and disassembly of the grinding disc 6 assembly, improving the flexibility and efficiency of the equipment during multi-station processing. Specifically, the slide rail 701 is preferably made of hard anodized aluminum material, which not only has a light weight and strong wear resistance but also can maintain good guiding accuracy during high-speed operation. A locking plate 702 is slidably connected to its inner side. The locking plate 702 is inserted into the locking slot 709 on the locking frame 708 through its front end, playing a role in fixing the grinding disc 6. The locking plate 702 is in the locking position inside the slide rail 701 during the working state, which can effectively prevent the grinding disc 6 from loosening and falling off due to vibration during operation. A limiting slot 704 is provided at the bottom end of the unlocking plate 703, and a limiting member 705 is slidably connected inside the limiting slot 704. The limiting member 705 is preferably made of wear-resistant steel, and the movement range of the locking plate 702 is controlled through precise cooperation, thereby ensuring the accuracy of its locking and releasing actions. In addition, the top end of the unlocking plate 703 is rotatably connected to the bottom end of the slide rail 701 through a rotating shaft structure. In actual operation, the user can drive the unlocking plate 703 to generate a deflection movement by rotating the transmission handle 707 at the bottom of the unlocking plate 703. The empty slot 706 serves as the movement space for the transmission handle 707, and its size is precisely matched with the transmission handle 707 to ensure the stability and safety during the operation process. The transmission handle 707 is preferably made of high-temperature resistant composite plastic or rubber-coated steel, which not only ensures the comfort during operation but also enhances the durability. Its top end is firmly connected to the bottom end of the unlocking plate 703 through a threaded connection or a snap structure, facilitating disassembly and maintenance. After the unlocking action occurs, the locking plate 702 slides outwards with the cooperation of the limiting member 705, and then the locking slot 709 in the middle of the locking frame 708 is released from the constraint, and the grinding disc 6 can be quickly replaced. The locking frame 708 is usually made of high-strength alloy steel material, and its bottom end is fixedly connected to the grinding disc 6, with a stable structure and resistance to impact, which helps to maintain the processing accuracy of the grinding station during the sand shooting and forming process. At the same time, this quick disassembly and assembly mechanism 7 forms a coordinated linkage with the adjusting plate 509 and the limiting rod 505. The top end of the limiting rod 505 is fixedly connected to the bottom end of the connecting plate 504, and a vertical sliding fit relationship is adopted between the adjusting plate 509 and the limiting rod 505, so that during the replacement process, the adjusting structure will not be displaced and interfered due to the operation of the locking mechanism, effectively ensuring the independent stability of the pressure adjusting mechanism 5. In summary, this quick disassembly and assembly mechanism 7 not only has a delicate structure and convenient operation but also has high stability and reliability, and is suitable for industrial production environments where grinding tools or sand molds need to be frequently replaced. It is a key component to improve the efficiency and maintenance convenience of the four-station vertical sand shooting horizontal molding machine.

[0029] The working principle of the entire device is as follows: To ensure the accuracy and uniformity of the sand mold surface treatment, the device is designed with a height-adjustable pressure regulating mechanism 5 to control the grinding pressure and optimize the fineness of the sand mold surface. When the user needs to grind the sand mold surface, first, the damping force of the extrusion spring 506 needs to be adjusted. This adjustment is achieved by manually rotating the handle 512 installed at one end of the device. The handle 512 is connected to the lead screw 507. By rotating the lead screw 507, the adjusting plate 509 is driven to move precisely along the threaded guide rail. The adjusting plate 509 is connected to the extrusion spring 506. The displacement of the adjusting plate 509 directly affects the compression degree of the spring, thereby adjusting the pressure applied by the grinding disc 6 on the sand mold surface. To ensure the accuracy and convenience of the adjustment process, the device is equipped with an index plate 511 and a scale ring 510. These two cooperate closely to reflect the rotation angle and number of turns of the lead screw 507 in real time, enabling the user to clearly grasp the adjustment force and status. By observing the scale markings, the user can precisely control the grinding pressure to prevent damage to the sand mold surface coating or uneven grinding caused by uneven pressure. The limit rod 505 provides stable support and guidance for the adjusting plate 509, avoiding shaking or deviation during the adjustment process and ensuring the smooth and reliable pressure adjustment. After the adjustment is completed, the user can start the electric elevator 4 to make the grinding disc 6 accurately descend vertically to the sand mold surface. With the appropriate pressure provided by the pressure regulating mechanism 5, the sand mold surface is evenly ground. The flexibility of the electric elevator 4 structure ensures the rapid adjustment of the grinding height to meet the needs of sand molds of different sizes and shapes, greatly improving the grinding efficiency and surface quality.This structural design not only improves the automation and precision of the grinding process, but also can flexibly adjust the grinding force according to the hardness and thickness of the sand mold, avoiding surface damage or insufficient grinding of the sand mold, ensuring the high quality of the casting product. It consists of multiple precision components such as a slide rail 701, a locking plate 702, an unlocking plate 703, a limit groove 704 and a transmission handle 707, etc., to ensure the quick disassembly and stable fixation of the grinding disc 6. When the grinding disc 6 needs to be replaced, the user first takes out the transmission handle 707 from the empty groove 706 provided at the bottom of the device. The transmission handle 707 is connected to the unlocking plate 703. Rotating the transmission handle 707 drives the unlocking plate 703 to rotate. The bottom end of the unlocking plate 703 is designed with a limit groove 704, which can drive the limiting member 705 to slide along the slide rail 701, thereby driving the locking plate 702 to disengage from the locking groove 709 in the locking frame 708, realizing the unlocking state of the grinding disc 6. At this time, the old grinding disc 6 can be easily removed. Subsequently, the user accurately fits and installs the new grinding disc 6 at the bottom end of the unlocking plate 703, and then rotates the transmission handle 707 in the reverse direction, so that the rotation of the unlocking plate 703 drives the limiting member 705 to slide along the limit groove 704, and the locking plate 702 is reinserted into the locking groove 709 in the locking frame 708, realizing the firm locking of the new grinding disc 6. This mechanism avoids the cumbersome process of traditional tool disassembly and assembly, greatly shortens the replacement time of the grinding disc 6, effectively improves the production continuity and maintenance convenience of the equipment. At the same time, this quick replacement device has good adaptability, adapts to grinding discs 6 of various specifications and models, and meets the needs of different workpieces and processes. Through this device, the user can easily achieve the efficient replacement of the grinding disc 6, reduce the labor intensity, improve the production efficiency, and ensure that the equipment always operates in the best state, supporting the continuous processing of high-quality sand molds.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A four-station vertical sand shooting horizontal molding machine, comprising a sand shooting molding machine body (1), a pressure regulating mechanism (5) and a quick disassembly and assembly mechanism (7), characterized in that: The pressure regulating mechanism (5) is arranged inside the sand shooting molding machine body (1), and the quick disassembly and assembly mechanism (7) is arranged at the bottom of the pressure regulating mechanism (5); Pressure regulating mechanism (5), the pressure regulating mechanism (5) includes a mounting plate (501), a transmission sleeve (502), a motor (503), a connecting plate (504), a limiting rod (505), a lead screw (507), a compression spring (506), an adjusting plate (509) and an index plate (511). The bottom end of the transmission sleeve (502) is fixedly connected to the connecting plate (504), and the middle part of the lead screw (507) is threadedly connected to the adjusting plate (509); Quick disassembly and assembly mechanism (7), the quick disassembly and assembly mechanism (7) includes a slide rail (701), a locking plate (702), an unlocking plate (703), a hollow groove (706), a locking frame (708) and a locking groove (709). The inner side of the slide rail (701) is slidably connected to the locking plate (702). The bottom end of the unlocking plate (703) is provided with a limiting groove (704), and the inner wall of the limiting groove (704) is slidably connected to a limiting member (705). The bottom end of the locking frame (708) is fixedly connected to a grinding disc (6), and the middle part of the locking frame (708) is provided with a locking groove (709).

2. The four-station vertical sand shooting horizontal molding machine according to claim 1, characterized in that: The bottom end of the compression spring (506) is fixedly connected to a transmission plate (508), the top end of the transmission plate (508) is connected to the top end of the slide rail (701), the bottom end of the connecting plate (504) is fixedly connected to a limiting rod (505), the bottom end of the adjusting plate (509) is fixedly connected to a compression spring (506), and a handle (512) is arranged on one side of the lead screw (507).

3. A four-station vertical sand shooting horizontal molding machine according to claim 2, characterized in that: The handle (512) is fixedly connected to the outer wall of the lead screw (507), and an index plate (511) is fixedly connected to the outer side of the handle (512). The top end of the index plate (511) is connected to the outer side of the handle (512).

4. A four-station vertical sand shooting horizontal molding machine according to claim 1, characterized in that: The bottom end of the connecting plate (504) is fixedly connected to a scale ring (510), and the top end of the scale ring (510) is sleeved on the bottom end of the connecting plate (504).

5. A four-station vertical sand shooting horizontal molding machine according to claim 1, characterized in that: The front surface of the sand shooting molding machine body (1) is rotatably connected to a turntable (2). A molding sand mold workpiece (3) is placed on the top end of the turntable (2), and the bottom end of the turntable (2) is rotatably connected to the front surface of the sand shooting molding machine body (1) through a rotating shaft.

6. A four-station vertical sand shooting horizontal molding machine according to claim 1, characterized in that: An electric elevator (4) is arranged inside the sand shooting molding machine body (1). The output end of the electric elevator (4) is fixedly connected to the top end of the mounting plate (501), and the bottom end of the mounting plate (501) is fixedly connected to a motor (503).

7. A four-station vertical sand shooting horizontal molding machine according to claim 1, characterized in that: The output end of the motor (503) is fixedly connected to the bottom end of the inner wall of the transmission sleeve (502), and the top end of the transmission sleeve (502) is rotatably connected to the bottom end of the mounting plate (501).

8. A four-station vertical sand shooting horizontal molding machine according to claim 1, characterized in that: The adjusting plate (509) is vertically slidably connected to the limiting rod (505), and the top end of the limiting rod (505) is fixedly connected to the bottom end of the connecting plate (504).

9. A four-station vertical sand shooting horizontal molding machine according to claim 1, characterized in that: The top end of the slide rail (701) is fixedly connected to the bottom end of the transmission plate (508), and the top end of the unlocking plate (703) is rotatably connected to the bottom end of the slide rail (701).

10. A four-station vertical sand shooting horizontal molding machine according to claim 1, characterized in that: An empty slot (706) is formed at the bottom end of the unlocking plate (703). A transmission handle (707) is fixedly connected to the bottom end of the unlocking plate (703). The transmission handle (707) matches the size of the empty slot (706), and the top end of the transmission handle (707) is connected to the bottom end of the unlocking plate (703).

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