A self-priming pump body casting molding equipment

Abstract

This application discloses a self-priming pump body casting and molding equipment, relating to the technical field of pump body casting and molding equipment. It includes a lower mold body, an upper mold body, and a mold opening and closing device. During operation, a motor drives a screw to rotate, causing a lifting assembly to move downwards, closing the upper and lower mold bodies. Molten metal is then injected through the casting port to complete the casting process. Subsequently, the motor rotates in the opposite direction, driving the lifting assembly to move upwards and open the mold. A transmission gear meshes with a transmission rack, driving a bevel gear set, which in turn drives an impact head to frequently strike and loosen the casting on the lower mold body via a transmission rod. When the switching shaft enters the groove of the second switching plate, the transmission gear disengages, and the striking stops. When the second limiting frame continues to rise to its highest point, the side rod enters the inclined end of the first transmission groove, driving the unloading plate to tilt forward and complete the unloading. This application integrates mold opening, striking and unloading into a single power source, achieving automated, efficient, and collaborative operation.

Description

Technical Field

[0001] This application relates to the technical field of pump body casting equipment, and in particular to a self-priming pump body casting equipment. Background Technology

[0002] Currently, self-priming pumps are centrifugal pumps with advantages such as compact structure, convenient operation, and strong self-priming ability. As a key component, the pump body usually needs to be produced by casting molding process. In the pump body casting molding equipment, after the upper and lower molds are closed, a closed cavity is formed. Molten metal is injected through the casting port. After cooling and solidification, the mold is opened and the casting is taken out.

[0003] Regarding the aforementioned technologies, such as the pump housing casting mold disclosed in patent CN208245755U, multiple steel balls are elastically connected to the inner wall of the inner mold cylinder by springs, and a drive motor is set on the top of the chassis. The motor drives the crossbar to rotate at high speed, causing the crossbar to intermittently strike the steel balls. After the steel balls deflect, they hit the inner wall of the inner mold cylinder, and the vibration loosens the attached pump housing so that it can be demolded.

[0004] While the existing patented demolding method using tapping can produce a vibration effect, the steel balls are connected by springs, requiring the springs to reset after each tap. The tapping frequency and force are limited by the spring's reset speed, making it difficult to achieve high-frequency continuous tapping, resulting in poor loosening effect. Furthermore, the tapping of this device only acts on the inner wall of the inner mold cylinder, and the vibration transmitted to the casting must pass through the mold wall, resulting in significant energy loss. For pump castings with thick walls, the loosening effect is limited. In addition, in this existing technology, the mold opening, tapping, and unloading processes are independent of each other, requiring manual intervention to remove the casting. This makes it impossible to achieve automated and coordinated operation of mold opening, tapping, and unloading, affecting overall production efficiency. Summary of the Invention

[0005] The purpose of this application is to provide a self-priming pump body casting and molding equipment to solve the problems in the prior art.

[0006] The self-priming pump body casting molding equipment provided in this application adopts the following technical solution: it includes a lower mold body, an upper mold body is positioned and covered at the upper end of the lower mold body, a top plate is covered at the top of the upper mold body, a casting port and an overflow port are respectively provided on the left and right sides of the upper end of the top plate, a protective box is provided at the rear of the lower mold body and the upper mold body, and a controller is installed on the right side of the protective box, and it also includes an opening and closing mold device installed inside the protective box.

[0007] By adopting the above technical solution, the lower mold body and the upper mold body are precisely covered to form a closed cavity. The casting port and overflow port on the top plate realize the smooth injection and venting of molten metal. At the same time, the mold opening and closing device in the protective box is uniformly driven, providing a stable foundation for subsequent automated mold opening, hammering and unloading, thereby effectively improving the casting quality and operational safety.

[0008] Preferably, the mold opening and closing device includes a motor, which is installed on the lower left side of the protective box. The output end of the motor is connected to a screw, and the front side of the screw is connected to a lifting component. A switching striking component is provided on the front side of the lifting component, and the upper rear end of the lifting component is connected to the unloading component, which is installed on the rear side of the protective box.

[0009] By adopting the above technical solution, namely, the motor drives the screw to rotate, which in turn drives the lifting component to move up and down reciprocally inside the protective box. When the lifting component drives the switching striking component to descend, the upper mold body moves down and is accurately positioned with the lower mold body to close the mold. When the lifting component drives the switching striking component to rise, not only is the upper mold body raised to open the mold, but the switching striking component will also move during the rising process to knock the lower mold body to demold. At the same time, when the lifting component moves up and down, the upper end of it is linked to the unloading component. Thus, the three processes of mold opening, knocking and unloading are integrated under the same power source, realizing efficient coordination and automation of the actions.

[0010] Preferably, the lifting assembly includes a transmission block, the rear side of which is threadedly connected to a screw, and the front side of which is connected to a first toothed plate. The first toothed plate is limited to slide inside a first limiting frame, which is located at the bottom of the protective box. A first gear is rotatably mounted on both sides inside the first limiting frame. The outer sides of the first gears on both sides mesh with the first toothed plate, and a first connecting arm is connected to the middle of the outer sides of the first gears on both sides. The upper end of the first connecting arm is rotatably connected to a second connecting arm, and the upper end of the second connecting arm is connected to a second gear. The second gear meshes with both sides of the second toothed plate, and the second toothed plate is limited to slide inside the second limiting frame.

[0011] By adopting the above technical solution, when the transmission block moves left and right along the screw, it drives the first toothed plate to slide within the first limiting frame. The left and right movement is converted into the prying of the second connecting arm through the first gears on both sides and the first connecting arm. As the second connecting arm rotates, the second gear rotates and drives the second toothed plate to slide in the opposite direction within the second limiting frame, forming a stable lifting effect and ensuring the smoothness and synchronization of the upper mold body's lifting action.

[0012] Preferably, the switching striking assembly includes a vertical plate, which is vertically installed inside the front side of the protective box. A first switching plate is locked at the lower front end of the vertical plate, and a second switching plate is locked at the upper front end of the vertical plate. A switching structure is slidably installed at the middle of the upper part of the vertical plate, and the rear side of the switching structure is connected to a second limiting frame. A striking structure is installed at the bottom of the vertical plate. The driving end of the striking structure is connected to the switching structure, and the striking end of the striking structure faces the middle of the rear side of the lower mold body.

[0013] By adopting the above technical solution, namely, using a vertical plate as the mounting base, with the first switching plate and the second switching plate fixed at its lower front and upper front ends respectively, and in conjunction with the switching structure connected to the second limiting frame and the bottom striking structure, when the upper mold body is closed, the switching structure is switched to the drive position. Thus, during the upward movement of the switching structure, the striking structure intermittently impacts the middle rear side of the lower mold body, thereby generating a powerful vibration effect, which loosens the pump body attached to the lower mold body, facilitating subsequent demolding. When the switching structure moves to the top with the second limiting frame, the switching structure switches to the drive-off state, stopping the lower mold body's striking demolding activity, without affecting the subsequent unloading activity.

[0014] Preferably, the switching structure includes a movable shell and a transmission rack. The movable shell is vertically limited and slidable on the front side of the vertical plate, and the two front ends of the movable shell are locked to the rear ends of the upper mold body by bolts. A switching shaft is inserted into the middle of the movable shell. The rear side of the switching shaft is connected to a connecting pipe, and the connecting pipe is slidably installed inside the movable shell. A shaft is rotatably inserted inside the connecting pipe, and the right side of the shaft is connected to a transmission gear. The transmission rack is installed on the right side of the front end of the vertical plate. A bracket is locked on the left side of the movable shell. A first bevel gear is installed on the upper end of the bracket, and the middle part of the first bevel gear is connected to the left end of the shaft inside the connecting pipe. A second bevel gear is meshed with the lower end of the first bevel gear. The lower end of the second bevel gear is rotatably connected to the bracket, and the middle part of the second bevel gear is limited and connected to the outer side of the transmission rod by a key. The transmission rod is vertically rotatably installed on the left side of the vertical plate, and the lower end of the transmission rod is connected to the driving end of the striking structure. A connecting piece is locked in the middle of the lower end of the movable shell, and the lower end of the connecting piece is locked to the second limiting frame by bolts.

[0015] By adopting the above technical solution, when the movable shell rises and falls with the upper mold body, the transmission gear and the transmission rack are in a meshing state. At this time, as the transmission gear rises, it drives the first bevel gear and the second bevel gear to move together through the shaft, thereby driving the transmission rod to rotate. The vertical lifting motion is converted into a rotational driving force and transmitted to the striking structure. Thus, the striking is triggered by the lifting and falling action of the upper mold body. No additional power source is required. The structure is compact and the response is timely. When the switching shaft rises into the interior of the second switching plate, it drives the connecting pipe to move laterally, disengaging the transmission gear and the transmission rack, and stopping the striking activity of the striking structure. This achieves the effect of opening the mold and rising to strike, and preparing for closing the mold and meshing.

[0016] Preferably, the striking structure includes a bottom shell, which is connected to the bottom of the vertical plate. A pulley assembly is installed inside the bottom shell. One side of the pulley assembly is connected to the lower end of the transmission rod, and the other end of the pulley assembly is connected to a turntable. A push-pull arm is rotatably connected to the side of the turntable away from the pulley assembly. An impact rod is rotatably connected to the outside of the push-pull arm. The outer end of the impact rod is limited and inserted into the inside of the bottom shell, and an impact head is movably connected to the impact end of the impact rod. A spring is connected to the impact head and the impact rod's mating end, and the spring is installed on both sides inside the impact end of the impact rod.

[0017] By adopting the above technical solution, the transmission rod achieves the operation of the pulley group through the linkage of the first bevel gear and the second bevel gear. The rotation of the turntable pushes the push-pull arm, causing the impact rod to reciprocate linearly within the bottom shell. In conjunction with the impact head with spring buffer, it performs a flexible and high-frequency knocking on the lower mold body, generating a powerful knocking vibration effect, thereby loosening the pump body attached inside the lower mold body.

[0018] Preferably, the unloading assembly includes a docking frame, which is locked to the rear side of the second limiting frame. Side rods are fixed to both sides of the docking frame. The end of each side rod away from the docking frame is connected to a first transmission groove. The first transmission groove is located inside one side of the transmission side plate, and the transmission side plate is slidably mounted inside both sides of the limiting plate. The limiting plate is installed inside the rear side of the protective box. A second transmission groove is located on the outer upper part of the transmission side plate, and a connecting shaft is inserted into the second transmission groove. A first connecting rod is connected to the outer end of the connecting shaft. The first connecting rod is inserted into the guide frame, and a second connecting rod is fixed to the outer side of the first connecting rod. A third connecting rod is locked to the lower end of the second connecting rod. The front side of the third connecting rod is connected to the interior of the adjusting arm, and the upper front end of the adjusting arm is rotatably connected to a fixed plate. The fixed plate is fixed to both sides of the bottom of the protective box, and an unloading plate is provided between the two fixed plates. The rear ends of the unloading plate are rotatably docked to the front side of the adjusting arm, and the unloading plate is locked to the four corners of the bottom of the lower mold body by bolts.

[0019] By adopting the above technical solution, when the second limiting frame is raised and lowered, the side rod is driven by the docking frame to slide along the first transmission groove. When it moves to the inclined position at the upper end of the first transmission groove, the side rod will drive the transmission side plate to slide left and right in the limiting plate. Then, the connecting shaft in the second transmission groove will drive the first connecting rod to move up and down in the guide frame. The second connecting rod and the third connecting rod will pull the adjusting arm to rotate around the fixed plate, and finally drive the unloading plate to flip and tilt forward, so as to realize the automatic sliding unloading of the casting, improve the discharge efficiency and operation convenience.

[0020] Preferably, the first toothed plate and the second toothed plate have the same shape, and the lower left end and the upper right end of the first toothed plate and the second toothed plate are provided with tooth angles at equal intervals.

[0021] By adopting the above technical solution, namely, the first toothed plate and the second toothed plate both adopt a structure with tooth angles evenly distributed at the lower left end and the upper right end, the two can realize the conversion of motion direction and precise matching of stroke during meshing transmission, ensuring that the lifting component can obtain stable and symmetrical driving force output during the rising and falling stages.

[0022] Preferably, both the first switching plate and the second switching plate are in the shape of an inverted L-shape, and the front switching ends of both the first switching plate and the second switching plate are integrally provided with a groove.

[0023] By adopting the above technical solution, both the first switching plate and the second switching plate are designed as inverted L-shaped plates with grooves on the front side, which facilitates the guidance and positioning of the switching shaft in the switching structure, so that the upper mold body can accurately enter the corresponding groove at the lowest or highest position, and realize the flexible switching and adjustment of the engagement drive state of the striking structure.

[0024] Preferably, the inlet ends of the grooves opened on the front sides of the first switching plate and the second switching plate are provided with opposite inclined surfaces, and the length of the groove opened on the front side of the first switching plate is longer than the length of the groove opened on the front side of the second switching plate.

[0025] By adopting the above technical solution, namely, setting opposite inclined surfaces at the groove inlet ends of the first switching plate and the second switching plate, the switching shaft can be guided to smoothly slide into grooves of different depths. When the groove length of the first switching plate is longer than that of the mold body, it can be accurately closed to the top of the lower mold body, avoiding the occurrence of mold closing interference problems.

[0026] Preferably, the side rod extends into the first transmission groove opened on the side of the transmission side plate on the side away from the docking frame, and the top of the first transmission groove extends in an inclined direction.

[0027] By adopting the above technical solution, if the side rod does not move into the top inclined end of the first transmission groove when it is raised and lowered with the docking frame, the transmission side plate cannot be pushed. If the side rod moves into the top inclined end of the first transmission groove when it is raised and lowered, the side rod will push the transmission side plate outward, so that it moves and cooperates with the transmission effect of the externally opened second transmission groove and the connecting shaft to realize the flipping unloading after the unloading plate is knocked.

[0028] In summary, this application includes the following beneficial technical effects: 1. This application sets up a lower mold body and an upper mold body, that is, the lower mold body and the upper mold body precisely cover each other to form a closed cavity. With the help of the casting port and overflow port on the top plate, the molten metal is smoothly injected and vented. At the same time, it is uniformly driven by the mold opening and closing device in the protective box, which provides a stable foundation for subsequent automated mold opening, hammering and unloading, thereby effectively improving the casting quality and operational safety.

[0029] 2. This application sets up an opening and closing mold device, that is, the motor drives the screw to rotate, which drives the lifting component to move up and down reciprocally in the protective box. When the lifting component drives the switching hammering component to descend, it realizes the accurate closing of the upper mold body and the lower mold body. When it rises, it realizes the opening of the upper mold body and simultaneously triggers the hammering demolding activity. At the same time, the upper end of the lifting component is linked to the unloading component, integrating the three processes of mold opening, hammering and unloading under the same power source drive, realizing efficient coordination and automation of the action.

[0030] 4. This application sets up a lifting component, that is, when the transmission block moves left and right along the screw, it drives the first toothed plate to slide within the first limit frame. The horizontal movement is converted into the movement of the second connecting arm through the first gears on both sides and the first connecting arm. The second gear rotates accordingly and drives the second toothed plate to slide in the opposite direction within the second limit frame, forming a stable lifting effect and ensuring the smoothness and synchronization of the upper mold body lifting action.

[0031] 5. This application sets up a switching striking component, namely, fixing the first switching plate and the second switching plate to the lower front end and the upper front end of the vertical plate respectively, and cooperating with the switching structure connected to the second limiting frame and the bottom striking structure, so that when the upper mold body is closed, the switching structure is in the driving position, and during the upward process, the linkage striking structure intermittently impacts the middle of the rear side of the lower mold body, generating vibration to loosen the pump body. When the switching structure moves to the top with the second limiting frame, it switches to the driving release state, stops the striking demolding activity, and does not affect the subsequent unloading.

[0032] 6. This application sets up a switching structure and a striking structure. When the moving shell rises and falls with the upper mold body, the transmission gear and the transmission rack mesh. The transmission gear rotates as it rises, and through the shaft, it drives the first bevel gear and the second bevel gear to rotate the transmission rod. This converts the vertical lifting motion into a rotational driving force, which is transmitted to the striking structure. The turntable and the push-pull arm push the impact rod to reciprocate. The impact head, which is buffered by a spring, performs a soft, high-frequency striking on the lower mold body. This ensures the loosening effect while avoiding damage to the mold. When the switching shaft enters the groove of the second switching plate, it drives the connecting pipe to move laterally to disengage and automatically stop the striking.

[0033] 7. This application sets up an unloading assembly, in which the second limiting frame moves up and down, driving the side rod through the docking frame, causing the side rod to slide along the first transmission groove. When it moves to the inclined position at the upper end of the first transmission groove, it drives the transmission side plate to slide within the limiting plate, and then drives the first connecting rod to move within the guide frame through the connecting shaft in the second transmission groove. The second and third connecting rods pull the adjusting arm to rotate around the fixed plate, and finally drive the unloading plate to flip and tilt forward, realizing automatic unloading of the casting, improving the discharge efficiency and ease of operation. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the mold-closing structure of this application; Figure 3 This is a frontal view of the internal structure of the mold opening and closing device of this application; Figure 4 This is a front view of the unfolded structure of the lifting assembly of this application; Figure 5 This is a front view structural diagram of the switching tapping component in this application; Figure 6 This is a front view diagram of the switching structure in this application; Figure 7 This is a top view of the internal structure of the striking structure in this application; Figure 8 This is a three-dimensional structural diagram of the unloading assembly of this application; Figure 9 This is a frontal view of the internal structure of the side rod and the first transmission groove in this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Lower mold body; 2. Upper mold body; 3. Top plate; 4. Casting gate; 5. Overflow port; 6. Protective box; 7. Controller; 8. Mold opening and closing device; 81. Motor; 82. Screw; 83. Lifting assembly; 831. Transmission block; 832. First toothed plate; 833. First limiting frame; 834. First gear; 835. First connecting arm; 836. Second connecting arm; 837. Second gear; 838. Second toothed plate; 839. Second limiting frame; 84. Switching striking assembly; 841. Vertical plate; 842. First switching plate; 843. Second switching plate; 844. Switching structure; 8441. Moving shell; 8442. Switching shaft; 8443. Connecting pipe; 8444. Transmission gear; 8445. Transmission rack; 8446, Bracket; 8447, First Bevel Gear; 8448, Second Bevel Gear; 8449, Transmission Rod; 84410, Connector; 845, Impact Structure; 8451, Bottom Shell; 8452, Pulley Assembly; 8453, Turntable; 8454, Push-Pull Arm; 8455, Impact Rod; 8456, Impact Head; 8457, Spring; 85, Unloading Assembly; 851, Connecting Frame; 852, Side Rod; 853, First Transmission Groove; 854, Transmission Side Plate; 855, Limiting Plate; 856, Second Transmission Groove; 857, Connecting Shaft; 858, First Connecting Rod; 859, Guide Frame; 8510, Second Connecting Rod; 8511, Third Connecting Rod; 8512, Adjusting Arm; 8513, Fixing Plate; 8514, Unloading Plate. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1 - Appendix Figure 9 This application will be described in further detail below.

[0037] A self-priming pump body casting molding equipment, referring to Figures 1-2 It includes a lower mold body 1, an upper mold body 2 is positioned and covered at the upper end of the lower mold body 1, a top plate 3 is covered at the top of the upper mold body 2, a casting port 4 and an overflow port 5 are respectively provided on the left and right sides of the upper end of the top plate 3, a protective box 6 is provided at the rear of the lower mold body 1 and the upper mold body 2, and a controller 7 is installed on the right side of the protective box 6, and also includes an opening and closing mold device 8 installed inside the protective box 6.

[0038] Specifically, the lower mold body 1 and the upper mold body 2 are precisely fitted together to form a closed cavity. The casting port 4 and overflow port 5 on the top plate 3 enable the smooth injection and venting of molten metal. At the same time, the mold opening and closing device 8 in the protective box 6 drives the process, providing a stable foundation for subsequent automated mold opening, hammering and unloading, thereby effectively improving the casting quality and operational safety.

[0039] Reference Figure 3 The mold opening and closing device 8 includes a motor 81, which is installed on the lower left side of the protective box 6. The output end of the motor 81 is connected to a screw 82, which is horizontally installed at the lower end of the protective box 6. The front side of the screw 82 is connected to a lifting component 83, which is driven by the screw 82 to perform lifting and lowering activities. The front side of the lifting component 83 is provided with a switching striking component 84, which can flexibly switch the striking action as the lifting component 83 moves up and down. The upper rear end of the lifting component 83 is connected to the unloading component 85, which is installed on the rear side of the protective box 6. When the lifting component 83 is lifting and opening the mold, the unloading component 85 will be activated when it reaches the top to realize the flipping and unloading of the lower mold body 1, thereby speeding up the unloading efficiency.

[0040] Specifically, the motor 81 drives the screw 82 to rotate, causing the lifting assembly 83 to reciprocate up and down within the protective box 6. When the lifting assembly 83 drives the switching striking assembly 84 to descend, the upper mold 2 moves down and is accurately positioned with the lower mold 1 to close the mold. When the lifting assembly 83 drives the switching striking assembly 84 to rise, not only is the upper mold 2 opened, but the switching striking assembly 84 also moves with the rising process to strike the lower mold 1 to demold it. At the same time, when the lifting assembly 83 moves up and down, its upper end is linked to the unloading assembly 85. Thus, the three processes of mold opening, striking and unloading are integrated under the same power source, achieving efficient coordination and automation of the actions.

[0041] Reference Figure 4The lifting assembly 83 includes a transmission block 831, the rear side of which is threadedly connected to a screw 82, and a first toothed plate 832 is connected to the front side of the transmission block 831. The first toothed plate 832 is laterally limited and slides inside the front side of the first limiting frame 833. The first limiting frame 833 is locked inside the bottom of the protective box 6, and first gears 834 are rotatably installed on both the left and right sides inside the first limiting frame 833. The outer sides of the first gears 834 on both sides mesh with the first toothed plate 832, and the middle of the outer sides of the first gears 834 on both sides... Each is connected to a first connecting arm 835, that is, the first connecting arms 835 on both sides engage with the first gears 834 on both sides and the corresponding positions of the first toothed plate 832 to perform synchronous relative or opposite swinging movements. The upper ends of the first connecting arms 835 on both sides are rotatably connected to the second connecting arms 836, and the upper ends of the second connecting arms 836 on both sides are connected to the second gears 837. The outer sides of the second gears 837 on both sides mesh with the left and right sides of the second toothed plate 838, and the second toothed plate 838 slides laterally within the second limiting frame 839.

[0042] Specifically, when the transmission block 831 moves left and right along the screw 82, it drives the first toothed plate 832 to slide within the first limiting frame 833. The left and right movement is converted into the actuation of the second connecting arm 836 through the first gear 834 on both sides and the first connecting arm 835. As the second connecting arm 836 rotates, the second gear 837 rotates and drives the second toothed plate 838 to slide in the opposite direction within the second limiting frame 839, forming a stable lifting effect and ensuring the smoothness and synchronization of the lifting action of the upper mold body 2.

[0043] Furthermore, the first toothed plate 832 and the second toothed plate 838 have the same shape, and the lower left end and the upper right end of the first toothed plate 832 and the second toothed plate 838 are provided with tooth angles at equal intervals.

[0044] Specifically, both the first toothed plate 832 and the second toothed plate 838 adopt a structure with tooth angles evenly distributed at the lower left end and the upper right end, so that the two can realize the conversion of motion direction and precise matching of stroke during meshing transmission, ensuring that the lifting component 83 can obtain stable and symmetrical driving force output during the rising and falling stages.

[0045] Reference Figure 5The switching striking assembly 84 includes a vertical plate 841, which is vertically installed inside the front side of the protective box 6. The vertical plate 841 has an integral vertical hollow groove in the middle. A first switching plate 842 is locked to the lower front end of the vertical plate 841, and a second switching plate 843 is locked to the upper front end of the vertical plate 841. The first switching plate 842 and the second switching plate 843 are arranged vertically opposite each other. A switching structure 844 is vertically limited and slidably installed at the upper end of the vertical hollow groove of the vertical plate 841. The rear side of the switching structure 844 is connected to the second limiting frame 839. That is, when the second limiting frame 839 moves up and down, the switching structure 844 moves up and down simultaneously. A striking structure 845 is installed at the bottom of the vertical plate 841. The driving end of the striking structure 845 is connected to the switching structure 844, and the striking end of the striking structure 845 faces the middle of the rear side of the lower mold body 1.

[0046] Specifically, the vertical plate 841 serves as the mounting base, with the first switching plate 842 and the second switching plate 843 fixed to its lower front and upper front ends, respectively. In conjunction with the switching structure 844 connected to the second limiting frame 839 and the bottom striking structure 845, when the upper mold body 2 is closed, the switching structure 844 is switched to the drive position. Thus, during the upward movement of the switching structure 844, the striking structure 845 intermittently impacts the rear middle of the lower mold body 1, thereby generating a powerful vibration effect. This loosens the pump body attached to the lower mold body 1, facilitating subsequent demolding. When the switching structure 844 moves to the top with the second limiting frame 839, the switching structure 844 switches to the drive-off state, stopping the knocking demolding activity of the lower mold body 1, without affecting the subsequent unloading activity.

[0047] Furthermore, both the first switching plate 842 and the second switching plate 843 are arranged in an inverted L-shaped plate shape, and the front switching ends of the first switching plate 842 and the second switching plate 843 are integrally provided with grooves. The grooves of the first switching plate 842 and the grooves of the second switching plate 843 are arranged in a left-right offset manner, and the offset directions are opposite, so that the switching shaft 8442 will generate left and right switching displacements respectively when it enters the two grooves in sequence.

[0048] Specifically, both the first switching plate 842 and the second switching plate 843 are designed as inverted L-shaped plates with grooves on the front side, which facilitates the guidance and positioning of the switching shaft 8442 in the switching structure 844. This allows the upper mold body 2 to accurately enter the grooves opened in the first switching plate 842 or the second switching plate 843 when it is at its lowest or highest position, thereby realizing flexible switching and adjustment of the engagement drive state of the striking structure 845.

[0049] Furthermore, the inlet ends of the grooves opened on the front sides of the first switching plate 842 and the second switching plate 843 are provided with opposite inclined surfaces, and the length of the groove opened on the front side of the first switching plate 842 is longer than the length of the groove opened on the front side of the second switching plate 843.

[0050] Specifically, the groove inlet ends of the first switching plate 842 and the second switching plate 843 are provided with opposite inclined surfaces, which can guide the switching shaft 8442 to smoothly slide into grooves of different depths. When the groove length of the first switching plate 842 is longer than that of the mold body 2, it can accurately close the mold to the top of the lower mold body 1, avoiding the occurrence of mold closing interference problems.

[0051] Reference Figure 6 The switching structure 844 includes a movable shell 8441 and a transmission rack 8445. The movable shell 8441 is vertically limited and slides in the vertical hollow groove opened in the middle of the vertical plate 841. The left and right sides of the front end of the movable shell 8441 are locked to the rear ends of the upper mold body 2 by bolts. Thus, when the movable shell 8441 moves up and down with the second limiting frame 839, the upper mold body 2 moves up and down synchronously. A switching shaft 8442 is longitudinally inserted into the middle of the movable shell 8441. The rear side of the switching shaft 8442 is connected to the connecting pipe 84. 43 are connected to each other, and the connecting pipe 8443 is laterally limited and slidably installed inside the movable shell 8441. A shaft is rotatably inserted inside the connecting pipe 8443, and the right side of the shaft is connected to the transmission gear 8444. The transmission rack 8445 is vertically installed on the right side of the front end of the vertical plate 841. A bracket 8446 is locked on the left side of the movable shell 8441. A first bevel gear 8447 is installed on the upper end of the bracket 8446, and the middle part of the first bevel gear 8447 is connected to the left end of the shaft inside the connecting pipe 8443. The first bevel gear 844... The lower end of the 7th section is meshed with a second bevel gear 8448. The lower end of the second bevel gear 8448 is rotatably connected to the bracket 8446, and the middle part of the second bevel gear 8448 is limitedly connected to the outer side of the transmission rod 8449 via a key. That is, when the movable housing 8441 moves up and down, the bracket 8446, the first bevel gear 8447, and the second bevel gear 8448 can be moved up and down simultaneously. In conjunction with the limiting docking effect of the second bevel gear 8448 and the transmission rod 8449, the second bevel gear 8448 can not only move along the... The transmission rod 8449 slides up and down externally. During the up and down sliding process, the transmission rod 8449 can also be rotated. The transmission rod 8449 is vertically mounted on the left side of the vertical plate 841, and the lower end of the transmission rod 8449 is connected to the driving end of the striking structure 845. The lower middle part of the moving shell 8441 is locked with a connector 84410, and the lower end of the connector 84410 is locked with the second limit frame 839 by bolts to ensure the firm connection between the moving shell 8441 and the second limit frame 839.

[0052] Specifically, when the movable shell 8441 rises and falls with the upper mold body 2, the transmission gear 8444 and the transmission rack 8445 are in a meshing state. At this time, as the transmission gear 8444 rises, it drives the first bevel gear 8447 and the second bevel gear 8448 to rotate through the shaft, thereby driving the transmission rod 8449 to rotate. This converts the vertical lifting motion into a rotational driving force, which is transmitted to the striking structure 845. Thus, the striking is triggered by the lifting action of the upper mold body 2. No additional power source is required. The structure is compact and the response is timely. When the switching shaft 8442 rises into the interior of the second switching plate 843, it drives the connecting pipe 8443 to move laterally, disengaging the transmission gear 8444 and the transmission rack 8445, stopping the striking activity of the striking structure 845. This achieves the effect of opening the mold and rising to strike, and preparing for mold closing and meshing.

[0053] Reference Figure 7 The striking structure 845 includes a bottom shell 8451, which is connected to the bottom of the vertical plate 841. A pulley assembly 8452 is installed inside the bottom shell 8451. The left side of the pulley assembly 8452 is connected to the lower end of the transmission rod 8449, and the right side of the pulley assembly 8452 is connected to a turntable 8453. A push-pull arm 8454 is rotatably connected to the side of the turntable 8453 away from the pulley assembly 8452. An impact rod 8455 is rotatably connected to the outside of the push-pull arm 8454. The outer end of the impact rod 8455 is limited and inserted into the interior of the bottom shell 8451. An impact head 8456 is movably connected to the impact end of the impact rod 8455, that is, the impact head 8456 and the impact end of the impact rod 8455 are telescopically connected. A spring 8457 is connected to the docking end of the impact head 8456 and the impact end of the impact rod 8455, and the spring 8457 is installed on the left and right sides inside the impact end of the impact rod 8455.

[0054] Specifically, the transmission rod 8449, through the linkage of the first bevel gear 8447 and the second bevel gear 8448, realizes the operation of the pulley group 8452. The rotation of the turntable 8453 pushes the push-pull arm 8454, causing the impact rod 8455 to reciprocate linearly within the bottom shell 8451. The impact head 8456, which is buffered by the spring 8457, performs a flexible and high-frequency knocking on the lower mold body 1, producing a powerful knocking vibration effect, thereby loosening the pump body attached inside the lower mold body 1.

[0055] Reference Figures 8-9The unloading assembly 85 includes a docking frame 851, which is locked to the rear side of the second limiting frame 839 for connection and locking with the second limiting frame 839 to achieve synchronous lifting and lowering. Side rods 852 are fixed on both sides of the docking frame 851. The end of the side rod 852 away from the docking frame 851 is connected to the interior of the first transmission groove 853. The first transmission groove 853 is opened on one side inside the transmission side plate 854, and the transmission side plate 854 is slidably mounted on the left and right sides inside the limiting plate 855. The limiting plate 855 is installed on the rear side inside the protective box 6 to limit the two transmission side plates 854, allowing for stable left-right or back-to-back movement. A second transmission groove 856 is opened on the upper outer side of the two transmission side plates 854, and the second transmission groove 856 is opened in an inclined direction. A connecting shaft 857 is inserted inside the second transmission groove 856, which guides the connecting shaft 857 in the inclined direction of the second transmission groove 856. The lifting and lowering motion is controlled by a fixed distance. The outer ends of the connecting shafts 857 on both sides are horizontally connected to the first connecting rods 858. The outer limit of the first connecting rods 858 on both sides is inserted into the guide frame 859 and can move vertically along it. The outer sides of the first connecting rods 858 on both sides are vertically fixed to the second connecting rods 8510, and the second connecting rods 8510 on both sides are located on the left and right sides of the outside of the protective box 6. The lower ends of the second connecting rods 8510 on both sides are longitudinally locked to the third connecting rods 8511. The front sides of the third connecting rods 8511 on both sides are connected to the internal groove of the adjusting arm 8512. The upper front ends of the adjusting arms 8512 on both sides are rotatably connected to the fixing plate 8513. The fixing plates 8513 on both sides are fixed to the left and right sides of the bottom of the protective box 6, and the unloading plate 8514 is provided between the fixing plates 8513 on both sides. The rear ends of the unloading plate 8514 are rotatably connected to the front of the adjusting arm 8512. The unloading plate 8514 is locked to the four corners of the bottom of the lower mold body 1 by bolts.

[0056] Specifically, when the second limiting frame 839 is raised or lowered, it drives the side rod 852 through the docking frame 851, causing the side rod 852 to slide along the first transmission groove 853. When it moves to the inclined position at the upper end of the first transmission groove 853, the side rod 852 drives the transmission side plate 854 to slide left and right in the limiting plate 855. Then, through the connecting shaft 857 in the second transmission groove 856, it drives the first connecting rod 858 to move up and down in the guide frame 859. The second connecting rod 8510 and the third connecting rod 8511 pull the adjusting arm 8512 to rotate around the fixed plate 8513, and finally drive the unloading plate 8514 to flip and tilt forward, so as to realize the automatic sliding unloading of the casting, improving the discharge efficiency and operation convenience.

[0057] Furthermore, the side rod 852 extends into the first transmission groove 853 opened laterally on the side of the transmission side plate 854 on the side away from the docking frame 851, and the top of the first transmission groove 853 extends in an inclined direction.

[0058] Specifically, when the side rod 852 rises and falls with the docking frame 851, if the side rod 852 does not move into the top inclined end of the first transmission groove 853, the transmission side plate 854 cannot be pushed. If the side rod 852 moves into the top inclined end of the first transmission groove 853 with the rise and fall, the side rod 852 will push the transmission side plate 854 outward, so that it moves and cooperates with the transmission effect of the externally opened second transmission groove 856 and connecting shaft 857 to realize the flipping and unloading of the unloading plate 8514 after the knocking is completed.

[0059] The working principle of this application is as follows: First, the controller 7 is started, and the motor 81 drives the screw 82 to rotate in the forward direction. The transmission block 831 moves to the left along the screw 82, causing the first toothed plate 832 to slide to the left within the first limiting frame 833. The first toothed plate 832 converts the horizontal movement into the actuation of the second connecting arm 836 through the first gear 834 on both sides and the first connecting arm 835. Thus, the second connecting arms 836 on both sides drive the second gear 837 connected at the top to rotate, thereby driving the second toothed plate 838 to slide to the right within the second limiting frame 839, realizing the downward movement of the second limiting frame 839. The second limiting frame 839 drives the moving shell 8441 to move down synchronously through the connecting piece 84410. The front end of the moving shell 8441 is locked and connected to the upper mold body 2, so that the upper mold body 2 moves down and precisely covers the lower mold body 1 to form a sealed cavity. At this time, molten metal is injected through the casting port 4 on the top plate 3, and the overflow port 5 is used for venting and overflowing, completing the casting process. Subsequently, after casting is completed, the motor 81 drives the screw 82 to rotate in the opposite direction, and the transmission block 831 moves to the right along the screw 82. Through the reverse transmission path, the second limiting frame 839 moves upward, driving the upper mold body 2 to rise and open the mold via the moving shell 8441. During the rising process, the transmission gear 8444 meshes with the transmission rack 8445 on the vertical plate 841. The transmission gear 8444 rotates as it rises, driving the first bevel gear 8447 and the second bevel gear 844 through the shaft passing through the connecting pipe 8443. The linkage 8 drives the transmission rod 8449 to rotate. The lower end of the transmission rod 8449 drives the turntable 8453 to rotate through the pulley group 8452. The turntable 8453 pushes the impact rod 8455 to reciprocate linearly within the bottom shell 8451 via the push-pull arm 8454. This causes the impact head 8456 to intermittently strike the rear center of the lower mold body 1 at a high frequency. At the same time, the impact head 8456, in conjunction with the spring 8457, achieves flexible buffering, generating sufficient vibration to loosen the pump body casting attached to the lower mold body 1, while avoiding rigid impact damage to the mold cavity. Meanwhile, as the movable shell 8441 continues to rise with the second limiting frame 839 to near the top, the switching shaft 8442 enters the groove opened on the front side of the second switching plate 843. Since the groove of the second switching plate 843 is set relatively to the right, the switching shaft 8442 is guided to the right by the right side wall of the groove during the rising process, causing the connecting pipe 8443 to slide to the right inside the movable shell 8441. This causes the transmission gear 8444 connected to the right end of the shaft passing through the connecting pipe 8443 to move to the right and disengage from the transmission rack 8445. At this time, the transmission gear 8444 stops rotating, the power of the striking structure 845 is cut off, and the impact head 8456 stops striking, avoiding ineffective or interfering striking during the unloading process. Immediately afterward, when the second limiting frame 839 rises to its highest point, it drives the two side rods 852 to rise synchronously via the docking frame 851. When the side rods 852 enter the section extending in the inclined direction at the top of the first transmission groove 853, the side rods 852 are guided by the inclined groove wall and push the transmission side plate 854 outward, causing the two transmission side plates 854 to slide back-to-back within the limiting connecting plate 855. When the transmission side plate 854 moves, the second transmission groove 856 opened on its upper part drives the first connecting rod 852 via the connecting shaft 857. 58 moves upward within the guide frame 859. The first connecting rod 858 pulls the adjusting arm 8512 in sequence through the second connecting rod 8510 and the third connecting rod 8511, causing the adjusting arm 8512 to rotate around the fixed plate 8513. Since the front end of the adjusting arm 8512 rotates and connects with the rear side of the unloading plate 8514, the unloading plate 8514 then flips forward and tilts. The lower mold body 1 rotates synchronously with the unloading plate 8514, automatically unloading and sliding the loosened pump body casting to the external unloading point, thus completing the unloading. Finally, after unloading, the motor 81 drives the screw 82 to rotate forward again, the transmission block 831 moves to the left, and the lifting assembly 83 reverses the transmission to move the second limit frame 839 downward a certain distance. At this time, the side rod 852 exits from the top inclined end of the first transmission groove 853 and moves down along the vertical section. The transmission side plate 854 slides and resets relative to the limit plate 855. The second transmission groove 856 drives the connecting shaft 857 to move down, causing the adjusting arm 8512 to drive the unloading plate 8514 to flip backward and reset to the horizontal support position. At the same time, when the upper mold body 2 is re-operated... During the mold closing action with the lower mold body 1, the moving shell 8441 moves downward, causing the switching shaft 8442 to disengage from the groove of the second switching plate 843 and enter the groove of the first switching plate 842 during the subsequent downward movement. Since the groove of the first switching plate 842 is relatively far to the left and is relatively long, the switching shaft 8442 is guided to the left by the left side wall of the groove to reset to the left, driving the connecting pipe 8443 to move to the left, so that the transmission gear 8444 and the transmission rack 8445 re-mesh, preparing for the next mold opening and hammering. At this point, the equipment completes a complete work cycle and enters the next round of casting and molding operations.

[0060] This application provides a self-priming pump body casting and molding equipment, which integrates the three processes of mold opening, hammering and unloading under the same power source drive, realizes the automated and coordinated operation of mold opening, hammering and unloading, and effectively improves production efficiency.

[0061] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A self-priming pump body casting molding equipment, comprising a lower mold body (1), an upper mold body (2) being positioned and covered at the upper end of the lower mold body (1), a top plate (3) being covered at the top of the upper mold body (2), a casting port (4) and an overflow port (5) being respectively provided on the left and right sides of the upper end of the top plate (3), a protective box (6) being provided on the rear side of the lower mold body (1) and the upper mold body (2), and a controller (7) being installed on the right side of the protective box (6); Its features are: It also includes a mold opening and closing device (8) installed inside the protective box (6). The mold opening and closing device (8) includes a motor (81). The motor (81) is installed on the lower left side inside the protective box (6). The output end of the motor (81) is connected to a screw (82). The front side of the screw (82) is connected to a lifting component (83). The front side of the lifting component (83) is provided with a switching knocking component (84). The upper rear end of the lifting component (83) is connected to a discharge component (85), and the discharge component (85) is installed on the rear side inside the protective box (6).

2. The self-priming pump body casting equipment according to claim 1, characterized in that: The lifting assembly (83) includes a transmission block (831), the rear side of which is threadedly connected to a screw (82), and the front side of the transmission block (831) is connected to a first toothed plate (832). The first toothed plate (832) slides within a first limiting frame (833), which is located at the bottom of the protective box (6). First gears (834) are rotatably mounted on both sides of the first limiting frame (833). 834) The outer sides are respectively engaged with the first tooth plate (832), and the middle of the outer sides of the first gear (834) on both sides are connected with the first connecting arm (835). The upper end of the first connecting arm (835) is rotatably connected with the second connecting arm (836), and the upper end of the second connecting arm (836) is connected with the second gear (837). The second gear (837) is engaged with both sides of the second tooth plate (838), and the second tooth plate (838) is limited to slide inside the second limiting frame (839).

3. The self-priming pump body casting equipment according to claim 2, characterized in that: The switching and striking assembly (84) includes a vertical plate (841), which is vertically installed inside the front side of the protective box (6). A first switching plate (842) is locked at the lower front end of the vertical plate (841), and a second switching plate (843) is locked at the upper front end of the vertical plate (841). A switching structure (844) is slidably installed in the middle of the upper end of the vertical plate (841), and the rear side of the switching structure (844) is connected to the second limiting frame (839). A striking structure (845) is installed at the bottom of the vertical plate (841). The driving end of the striking structure (845) is connected to the switching structure (844), and the striking end of the striking structure (845) faces the middle of the rear side of the lower mold body (1).

4. The self-priming pump body casting equipment according to claim 3, characterized in that: The switching structure (844) includes a movable shell (8441) and a transmission rack (8445). The movable shell (8441) is vertically limited and slides on the front side of the vertical plate (841), and the front sides of the movable shell (8441) are locked to the rear ends of the upper mold body (2) by bolts. A switching shaft (8442) is inserted into the middle of the movable shell (8441). The rear side of the switching shaft (8442) is connected to the connecting pipe (8443), and the connecting pipe (8443) is limited and slidably installed inside the movable shell (8441). A shaft is rotatably inserted inside the connecting pipe (8443), and the right side of the shaft is connected to the transmission gear (8444). The transmission rack (8445) is installed on the right side of the front end of the vertical plate (841). A bracket (8446) is locked on the left side of the movable shell (8441). A first bevel gear (8447) is installed on the upper end of the bracket (8446), and the middle part of the first bevel gear (8447) is connected to the left end of the internal shaft of the connecting pipe (8443). The lower end of the first bevel gear (8447) is meshed with a second bevel gear (8448). The lower end of the second bevel gear (8448) is rotatably connected to the bracket (8446), and the middle part of the second bevel gear (8448) is limitedly connected to the outer side of the transmission rod (8449) through a key. The transmission rod (8449) is vertically rotatably installed on the left side of the vertical plate (841), and the lower end of the transmission rod (8449) is connected to the driving end of the striking structure (845). A connector (84410) is locked in the middle of the lower end of the movable shell (8441), and the lower end of the connector (84410) is locked to the second limiting frame (839) by bolts.

5. The self-priming pump body casting equipment according to claim 4, characterized in that: The striking structure (845) includes a bottom shell (8451) which is connected to the bottom of the vertical plate (841). A pulley assembly (8452) is installed inside the bottom shell (8451). One side of the pulley assembly (8452) is connected to the lower end of the transmission rod (8449), and the other end of the pulley assembly (8452) is connected to a turntable (8453). A push-pull arm (8453) is rotatably connected to the side of the turntable (8453) away from the pulley assembly (8452). 454), an impact rod (8455) is rotatably connected to the outside of the push-pull arm (8454). The outer end of the impact rod (8455) is limited and inserted into the inside of the bottom shell (8451). An impact head (8456) is movably connected to the impact end of the impact rod (8455). A spring (8457) is connected to the mating end of the impact head (8456) and the impact rod (8455). The spring (8457) is installed on both sides inside the impact end of the impact rod (8455).

6. The self-priming pump body casting equipment according to claim 2, characterized in that: The unloading assembly (85) includes a docking frame (851), which is locked to the rear side of the second limiting frame (839). Side rods (852) are fixed to both sides of the docking frame (851). The end of the side rod (852) away from the docking frame (851) is connected to a first transmission groove (853). The first transmission groove (853) is located inside one side of the transmission side plate (854). The transmission side plate (854) is slidably mounted on both sides inside the limiting plate (855). The limiting plate (855) is installed inside the rear side of the protective box (6). A second transmission groove (856) is provided on the outer side of the upper end of the transmission side plate (854). A connecting shaft (857) is inserted inside the second transmission groove (856). The outer end of the connecting shaft (857) is connected to a first connecting rod. The first connecting rod (858) is inserted into the guide frame (859) and a second connecting rod (8510) is fixed on the outside of the first connecting rod (858). A third connecting rod (8511) is locked at the lower end of the second connecting rod (8510). The front side of the third connecting rod (8511) is connected to the inside of the adjusting arm (8512) and the upper front end of the adjusting arm (8512) is rotatably connected to the fixing plate (8513). The fixing plate (8513) is fixed on both sides of the bottom of the protective box (6). A discharge plate (8514) is provided between the two fixing plates (8513). The rear ends of the discharge plate (8514) are rotatably connected to the front side of the adjusting arm (8512). The discharge plate (8514) is locked to the bottom four corners of the lower mold body (1) by bolts.

7. The self-priming pump body casting equipment according to claim 2, characterized in that: The first toothed plate (832) and the second toothed plate (838) have the same shape, and the lower left end and the upper right end of the first toothed plate (832) and the second toothed plate (838) are provided with tooth angles at equal intervals.

8. The self-priming pump body casting equipment according to claim 3, characterized in that: Both the first switching plate (842) and the second switching plate (843) are in the shape of an inverted L-shape, and the front switching end of both the first switching plate (842) and the second switching plate (843) is integrally provided with a groove.

9. The self-priming pump body casting equipment according to claim 8, characterized in that: The inlet ends of the grooves opened on the front sides of the first switching plate (842) and the second switching plate (843) are provided with opposite inclined surfaces, and the length of the groove opened on the front side of the first switching plate (842) is longer than the length of the groove opened on the front side of the second switching plate (843).

10. The self-priming pump body casting equipment according to claim 6, characterized in that: The side rod (852) extends into the first transmission groove (853) on the side of the transmission side plate (854) away from the docking frame (851), and the top of the first transmission groove (853) extends in an inclined direction.

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