Loader balancing weight casting evanescent mode

Abstract

The utility model relates to the technical field of evanescent modes, in particular to an evanescent mode for casting a balancing weight of a loading machine. The evanescent mode sand feeding box mainly aims at solving the problems that sand needs to be poured into a common evanescent mode after the evanescent mode is put into the sand feeding box, if the evanescent mode is not limited in position, the evanescent mode is easily affected by the sand to incline in the sand pouring process, follow-up casting work is hindered, and the quality of finished products is reduced. According to the technical scheme, the casting device comprises a sand box and a loader balancing weight casting evanescent mode, the loader balancing weight casting evanescent mode is placed in the sand box, the loader balancing weight casting evanescent mode is connected with a detachable pouring ladle, and a supporting assembly is arranged below the loader balancing weight casting evanescent mode. According to the utility model, the stability of casting the evanescent mode by the balancing weight of the loader is improved in the sand feeding process, the risk that the casting operation is influenced by inclination is reduced, the subsequent cleaning of the cast sand is facilitated, and the sand cleaning difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lost foam casting technology, and in particular to a lost foam casting method for loader counterweight blocks. Background Technology

[0002] Loader counterweights are primarily used to increase the weight of machinery, thereby improving its stability, traction, and operational performance. Especially when handling heavy objects or performing complex operations, counterweights effectively prevent equipment tipping, improving safety and work efficiency. Due to their large size and complexity, loader counterweights are typically manufactured using casting. Lost foam casting is a common method in the foundry industry. The dimensions of the counterweight are preset, and molten metal is poured into a lost foam mold placed in a sand box and sand material. Once the mold disappears, the casting of the loader counterweight is complete.

[0003] However, common lost foam casting requires pouring sand into the sand box after placement. If the lost foam is not positioned, it is easy for the lost foam to become skewed due to the sand during the pouring process, which hinders the subsequent casting work and reduces the quality of the finished product. In view of this, we propose a lost foam casting method for loader counterweight blocks. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a lost foam casting method for loader counterweight blocks.

[0005] The technical solution of this utility model is as follows: A lost foam casting method for loader counterweights includes a sand box and a lost foam casting method for loader counterweights. The lost foam casting method for loader counterweights is placed inside the sand box. A detachable pouring hopper is connected to the lost foam casting method for loader counterweights. A support assembly is provided below the lost foam casting method for loader counterweights. The support assembly includes a stabilizing support plate. A spring is connected to the bottom wall of the stabilizing support plate. A door is provided on the front wall of the stabilizing support plate. Hinges are symmetrically installed on the door and the front wall of the sand box. Movable components are symmetrically installed at the top opening of the sand box. The movable components include a sealing movable plate. A baffle is connected to the bottom of the sealing movable plate. A rack is connected to the back end of each baffle. A drive assembly is arranged on the back wall of the sand box. The drive assembly includes a rotating shaft. Pulleys are sleeved on the outer surface walls of the two rotating shafts. A transmission belt is sleeved on the belt grooves of the two pulleys. A gear is provided between the racks included in the two movable components.

[0006] Preferably, the side wall of the sand box is provided with a vent hole, a filter screen is embedded in the vent hole, and a negative pressure pump is provided on one side of the filter screen.

[0007] Preferably, a support base is installed on the side wall of the sand box, and the negative pressure pump is installed on the top wall of the support base.

[0008] Preferably, limit sliders are symmetrically welded to the two side walls of the stabilizing support plate, and first limit grooves are symmetrically opened on the two inner side walls of the sand box, with the two limit sliders respectively inserted into the first limit grooves corresponding to their positions.

[0009] Preferably, the teeth of the two racks are arranged opposite each other, and the gear is sleeved on the outer wall of the shaft at the corresponding position, and the gear meshes with the rack.

[0010] Preferably, a forward and reverse motor is provided at one end of the rotating shaft, and a motor mount is installed on the back wall of the forward and reverse motor, the motor mount being L-shaped.

[0011] Preferably, a bearing seat is installed on the back wall of the sand box, and the end of another rotating shaft is connected to the rotating end of the bearing seat.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] This invention utilizes a spring and a stabilizing support plate to support the lost foam casting mold for loader counterweights placed inside the sand box. This facilitates subsequent positioning of the lost foam casting mold. Simultaneously, a forward and reverse motor drives a rotating shaft, causing a gear to rotate under the transmission of a pulley and drive belt. This, in conjunction with a rack and baffle, moves a sealing movable plate, clamping the hopper detachably mounted on the lost foam casting mold. This helps maintain the stability of the lost foam casting mold during sand feeding into the sand box, reducing the risk of tilting affecting casting. Furthermore, the stabilizing support plate gradually descends, releasing contact with the bottom of the lost foam casting mold to prevent affecting the molding at the bottom. The opening of the box door also facilitates cleaning of the sand material inside the sand box after casting, making subsequent casting work easier. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of a lost foam casting method for loader counterweights;

[0015] Figure 2 yes Figure 1 A schematic diagram of the frontal cross-sectional structure;

[0016] Figure 3 yes Figure 1 A schematic diagram of the back structure.

[0017] Reference numerals: 1. Sand box; 2. Lost foam casting of loader counterweight; 3. Support assembly; 31. Stabilizing support plate; 32. Spring; 33. Limiting slider; 4. Movable assembly; 41. Sealing movable plate; 42. Baffle; 43. Rack; 5. Filter screen; 6. Negative pressure pump; 7. Support base; 8. Drive assembly; 81. Shaft; 82. Pulley; 83. Transmission belt; 84. Gear; 85. Forward and reverse motor; 86. Motor base; 9. Box door; 10. Hinge; 11. Casting hopper. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] Example

[0020] like Figures 1 to 3 As shown, this utility model proposes a lost foam casting method for loader counterweights, comprising a sand box 1 and a lost foam casting method 2 for loader counterweights. The lost foam casting method 2 is placed inside the sand box 1, facilitating subsequent casting operations using the sand in the sand box 1. The pouring hopper 11 is detachably connected to the casting end of the lost foam casting method 2, which is beneficial for introducing molten metal into the lost foam casting method 2 for shaping. A support assembly 3 is installed inside the sand box 1 and positioned below the lost foam casting method 2. The support assembly 3 includes a stabilizing support plate 31, springs 32, and limiting sliders 33. The bottom ends of the multiple springs 32 are connected to the bottom inner wall of the sand box 1, and the top ends are fixed to the bottom wall of the stabilizing support plate 31. The connection allows the stabilizing support plate 31 to provide initial support and positioning for the lost foam casting 2 of the loader counterweight. A stabilizing groove is provided at the top of the stabilizing support plate 31. This groove has an irregular shape and is adapted to the bottom of the lost foam casting 2 of the loader counterweight, facilitating the stabilization of the lost foam casting 2 of the loader counterweight. Two limiting sliders 33 are symmetrically welded to the side walls of the stabilizing support plate 31 and inserted into the first limiting grooves symmetrically opened on the inner walls of the sand box 1. These guide the stabilizing support plate 31, allowing it to gradually descend during sand feeding into the sand box 1 and contact the support of the lost foam casting 2 of the loader counterweight, preventing any impact on the gradual shaping of the bottom of the lost foam casting 2 of the loader counterweight.

[0021] Furthermore, two sets of movable components 4 are symmetrically installed at the top opening of the sand box 1. The movable components 4 include a sealing movable plate 41, a baffle 42, and a rack 43. The sealing movable plate 41 is set at the top opening of the sand box 1 to protect and seal the top opening of the sand box 1. A semi-conical groove is opened on the side wall of the sealing movable plate 41 to facilitate clamping and positioning of the pouring hopper 11 with the sealing movable plate 41 included in the other set of movable components 4. This facilitates the subsequent calibration of the lost foam 2 and the pouring hopper 11 for casting the loader counterweight block, so as to prevent affecting the subsequent casting operation. The rack 43 is fixedly installed on the back end of the baffle 42. A limiting slide is welded on the back wall of the rack 43. A second limiting slide groove is opened on the back wall of the sand box 1. The limiting slide is inserted into the second limiting slide groove to assist the rack 43 in moving. A sealing conduit is installed on the top wall of the sealing movable plate 41 to facilitate the introduction of sand into the sand box 1.

[0022] Furthermore, the door 9 on the front wall of the sand box 1 is connected to a portion of the hinge 10, and another portion of the hinge 10 is connected to the front wall of the sand box 1, assisting the door 9 in rotating. This allows the door 9 to release the blockage at the front opening of the sand box 1, making it easier for workers to clean the sand inside the sand box 1 without having to turn the sand box 1 over to empty the sand. The filter screen 5 is embedded in the vent hole on the side wall of the sand box 1, and the support base 7 is fixedly installed on the side wall of the sand box 1. The negative pressure pump 6 is installed on the top wall of the support base 7, which supports the negative pressure pump 6. The suction end of the negative pressure pump 6 is connected to the vent hole, which facilitates the decompression of the sand inside the sand box 1, which is beneficial for subsequent casting work.

[0023] Furthermore, the drive assembly 8 is arranged on the back wall of the sand box 1. The drive assembly 8 includes a rotating shaft 81, a pulley 82, a transmission belt 83, a gear 84, a forward and reverse motor 85, and a motor base 86. The motor base 86 is fixedly installed on the back wall of the sand box 1 and is located below the bearing seat installed on the back wall of the sand box 1. It is also L-shaped to support the forward and reverse motor 85 installed at the top of its horizontal structure. The ends of the two rotating shafts 81 are respectively connected to the output end of the forward and reverse motor 85 and the rotating end of the bearing seat. The pulleys 82 are symmetrically fitted onto the outer surface walls of the two rotating shafts 81, and the transmission belt 83 is fitted into the belt grooves of the two pulleys 82 to perform transmission, so that the two rotating shafts 81 can rotate simultaneously under the drive of the forward and reverse motors 85; the gear 84 is set between the two symmetrically arranged racks 43 and meshes with the two racks 43, and is also fitted onto the outer surface wall of the other rotating shaft 81 to provide power for the same or opposite movement of the sealing movable plate 41, so as to facilitate automatic control of the opening and closing state of the top of the sand box 1.

[0024] In this embodiment, when the lost foam casting 2 of the loader counterweight block needs to be placed into the sand box 1, the bottom of the lost foam casting 2 of the loader counterweight block is supported by the stabilizing support plate 31. The stabilizing support plate 31 uses the spring 32 and the stabilizing groove to support the lost foam casting 2 of the loader counterweight block, preventing the lost foam casting 2 of the loader counterweight block from tilting after being placed in, which would affect the subsequent casting. When sand is being poured into the sand box 1, the forward and reverse motor 85 is started in advance to drive one shaft 81 to rotate under the transmission action of the pulley 82 and the transmission belt 83. The other shaft 81 is driven to rotate. The position of the sealing movable plate 41 is adjusted by the gear 84 meshing with the rack 43, so that the sealing movable plate 41 included in the two sets of movable components 4 clamps the pouring hopper 11, realizing the positioning of the lost foam casting 2 of the loader counterweight block. At this time, the sand is poured into the sand box 1. Sand can improve the stability of the lost foam casting 2 of the loader counterweight 2 during the sand feeding process. When it is necessary to check the condition inside the sand box 1, the forward and reverse motor 85 can be started to drive a rotating shaft 81 to rotate in the opposite direction, so that the two sealing movable plates 41 can be released from their limits. This facilitates the inspection of the sand and also makes it easier to remove the casting after the subsequent casting is completed. As the sand fills the sand box 1, the stabilizing support plate 31 can be lowered with the assistance of the spring 32, releasing its contact with the bottom of the lost foam casting 2 of the loader counterweight 2, so as to prevent it from affecting the molding of the bottom of the lost foam casting 2 of the loader counterweight 2. With the help of the negative pressure pump 6, the sand in the sand box 1 can be depressurized, improving the compactness of the sand and providing convenience for subsequent casting operations. When it is necessary to remove the sand, the box door 9 can be opened to reduce the difficulty of removing the sand.

[0025] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A lost foam casting method for loader counterweights, comprising a sand box (1) and a lost foam casting method (2) for loader counterweights, wherein the lost foam casting method (2) for loader counterweights is placed inside the sand box (1), and a detachable pouring hopper (11) is connected to the lost foam casting method (2), characterized in that: A support assembly (3) is provided below the lost foam casting (2) of the loader counterweight block. The support assembly (3) includes a stabilizing support plate (31). A spring (32) is connected to the bottom wall of the stabilizing support plate (31). A door (9) is provided on the front wall of the stabilizing support plate (31). Hinges (10) are symmetrically installed on the front wall of the door (9) and the sand box (1). A movable assembly (4) is symmetrically installed at the top opening of the sand box (1). The movable assembly (4) includes a sealing movable plate (4). 1) A baffle (42) is connected to the bottom of the sealing movable plate (41), and a rack (43) is connected to the back end of the baffle (42). A drive assembly (8) is arranged on the back wall of the sand box (1). The drive assembly (8) includes a rotating shaft (81). A pulley (82) is sleeved on the outer surface wall of the two rotating shafts (81). A transmission belt (83) is sleeved on the belt groove of the two pulleys (82). A gear (84) is arranged between the racks (43) of the two movable assemblies (4).

2. The lost foam casting method for loader counterweights according to claim 1, characterized in that, The sand box (1) has ventilation holes on its side wall, and a filter screen (5) is embedded in the ventilation holes. A negative pressure pump (6) is provided on one side of the filter screen (5).

3. The lost foam casting method for loader counterweights according to claim 2, characterized in that, A support base (7) is installed on the side wall of the sand box (1), and the negative pressure pump (6) is installed on the top wall of the support base (7).

4. The lost foam casting method for loader counterweights according to claim 1, characterized in that, The two side walls of the stabilizing support plate (31) are symmetrically welded with limiting sliders (33), and the two inner walls of the sand box (1) are symmetrically provided with first limiting grooves. The two limiting sliders (33) are respectively inserted into the first limiting grooves corresponding to their positions.

5. The lost foam casting method for loader counterweights according to claim 1, characterized in that, The teeth of the two racks (43) are arranged opposite each other, and the gear (84) is sleeved on the outer wall of the corresponding rotating shaft (81), and the gear (84) meshes with the rack (43).

6. The lost foam casting method for loader counterweights according to claim 1, characterized in that, A forward and reverse motor (85) is provided at the end of one of the rotating shafts (81), and a motor base (86) is installed on the back wall of the forward and reverse motor (85), and the motor base (86) is L-shaped.

7. The lost foam casting method for loader counterweights according to claim 1, characterized in that, A bearing seat is installed on the back wall of the sand box (1), and the end of another shaft (81) is connected to the rotating end of the bearing seat.

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