A shakeout machine with quick change of plate

Abstract

The application discloses a quick-plate-changing shakeout machine, which comprises a rack, an upper beam arranged above the rack, a plate-changing mechanism arranged at the upper end of the rack, a motorized roller way arranged below the plate-changing mechanism and used for placing an iron mold, a jacking device arranged below the motorized roller way, sand hopper moving-out systems arranged at the two sides of the jacking device, a guide rail, a first plate-changing trolley and a second plate-changing trolley, wherein the guide rail is fixed to the lower side of the upper beam, the first plate-changing trolley and the second plate-changing trolley are arranged on the guide rail, positioning blocks are arranged at the two sides of the first plate-changing trolley and the second plate-changing trolley, a trolley connecting head is arranged on the first plate-changing trolley and connected with the second plate-changing trolley, a cylinder push plate is arranged on the second plate-changing trolley, a cylinder is connected with the cylinder push plate, and the cylinder is fixed to the upper beam. The application can realize the quick switching of two top plates, improve the work efficiency and reduce the labor cost.

Description

Technical Field

[0001] This invention relates to the field of casting equipment technology, and in particular to a quick-change sand removal machine. Background Technology

[0002] Sand-coated iron mold casting is a casting process in which a thin layer of molding sand is placed inside a metal mold (called an iron mold) to form a casting. Sand-coated iron mold casting combines the characteristics of both metal mold and shell mold casting, resulting in significantly improved casting quality and a substantial reduction in scrap. Due to the high rigidity of the sand-coated iron mold, the dimensional accuracy and density of the castings are significantly improved. During sand-coated iron mold casting, the coating sand disintegrates at high temperatures and automatically detaches from the inner cavity of the iron mold under its own gravity. However, the coating sand in the sand injection holes usually cannot detach automatically. Therefore, after sand-coated iron mold casting, the residual coating sand must be manually removed. Because manual cleaning is very labor-intensive, a sand removal machine is used to clean the coating sand.

[0003] Because casting production lines typically involve a wide variety of products and the locations of sand-shooting holes in the molds vary, the versatility of the equipment is crucial. Ordinary sand-removing machines, which cannot replace the top plate or have low efficiency in doing so, are no longer sufficient to meet current demands. Therefore, providing a sand-cleaning device that allows for rapid top plate replacement, improving work efficiency while reducing worker workload, has become a pressing technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a sand removal machine with a quick-change top plate. This invention improves work efficiency and reduces labor costs by enabling rapid switching between two top plates.

[0005] The technical solution of the present invention: A quick-change sand removal machine includes a frame, with an upper beam mounted on top of the frame; a plate changing mechanism is provided at the upper end of the frame, and a motorized roller conveyor is provided below the plate changing mechanism for placing iron molds; a lifting device is provided below the motorized roller conveyor, and sand hopper removal systems are provided on both sides of the lifting device; the plate changing mechanism includes a guide rail, a first plate changing trolley, and a second plate changing trolley; the guide rail is fixed to the lower side of the upper beam; the first and second plate changing trolleys are used to load the top plate; both the first and second plate changing trolleys are mounted on the guide rail, and positioning blocks are provided on both sides of the first and second plate changing trolleys; a trolley connector is mounted on the first plate changing trolley, and the trolley connector is connected to the second plate changing trolley; a cylinder push plate is mounted on the second plate changing trolley, and a cylinder is connected to the cylinder, which is fixed to the upper beam.

[0006] The aforementioned quick-change sand removal machine includes a base with multiple columns on the base, and the upper beam is mounted on the columns.

[0007] The aforementioned quick-change sand removal machine has V-shaped wheels on both sides of the first and second plate changing trolleys, which are placed on guide rails.

[0008] The aforementioned quick-change sand removal machine includes a motorized roller conveyor and roller conveyor bracing; roller conveyor supports are provided on the roller conveyor bracing, and roller conveyor supports are installed in the roller conveyor supports; the output end of the motor is connected to a drive shaft, and the drive shaft is connected to the roller conveyor supports via a chain.

[0009] The aforementioned quick-change sand removal machine includes a lifting device comprising a hydraulic cylinder support at the bottom of the frame, a hydraulic cylinder mounted in the middle of the hydraulic cylinder support, a working platform connected to the head of the hydraulic cylinder, guide rods at the four corners of the working platform, and guide rods cooperating with guide sleeves on the hydraulic cylinder support; and a sand removal hopper mounted on the working platform.

[0010] The aforementioned quick-change sand removal machine includes a sand hopper removal system comprising removal roller inclined supports fixed on both sides of the middle of the frame, removal roller inclined supports being provided with removal roller supports, and removal roller supports being provided with multiple rollers; the removal roller supports are also provided with guide sliders; the guide sliders cooperate with the grooves of the roller inclined supports.

[0011] Compared with existing technologies, this invention enables rapid switching of top plates through the left-right movement of the plate-changing mechanism. The first and second plate-changing trolleys in the mechanism are used to load the top plates, while the upper beam in the frame restricts the vertical movement of the top plates directly below them, thus enabling boltless top plate replacement and improving efficiency. Positioning blocks are provided on both sides of the first and second plate-changing trolleys for rapid positioning of the top plates during replacement, allowing for boltless installation of the top plates, significantly improving replacement efficiency and reducing labor intensity. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention;

[0013] Figure 2 This is a schematic diagram of the structure of the frame, motorized roller conveyor, and sand removal hopper system of the present invention;

[0014] Figure 3 This is a schematic diagram of the plate-changing mechanism of the present invention;

[0015] Figure 4 This is a schematic diagram of the hydraulic cylinder support mechanism of the present invention.

[0016] The labels in the attached diagram are

[0017] 1-Frame; 11-Base; 12-Column; 13-Upper beam; 2-Plate changing mechanism; 21-First plate changing trolley; 22-Positioning block; 23-V-wheel; 24-Guide rail; 25-Trolley connector; 26-Second plate changing trolley; 27-Cylinder push plate; 28-Cylinder; 3-Motorized roller conveyor; 31-Roller conveyor diagonal brace; 32-Roller conveyor support; 33-Roller conveyor support; 34-Drive shaft; 35-Gear motor; 4-Iron mold; 5-Lifting device; 51-Hydraulic cylinder support; 52-Hydraulic cylinder; 53-Working platform; 54-Guide rod; 55-Sand hopper; 6-Sand hopper removal system; 61-Roller; 62-Removal roller conveyor support; 63-Guide slider; 64-Removal roller conveyor diagonal brace. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0019] Example: A quick-change sand removal machine includes a frame 1, a plate changing mechanism 2 mounted on the frame 1, a motorized roller conveyor 3 below the plate changing mechanism 2 for placing iron molds 4; a lifting device 5 below the motorized roller conveyor 3, and sand hopper removal systems 6 on both sides of the lifting device 5. The plate changing mechanism 2 is used to load the top plate and realize the quick switching between two top plates and the quick replacement of the top plate; the motorized roller conveyor 3 is used to automatically transport the iron molds 4; the lifting device 5 is used to lift the iron molds, so that the lifting rod is inserted into the iron molds to realize sand removal and collect the fallen sand; the sand hopper removal system 6 can facilitate the unified cleaning of sand in the sand hoppers.

[0020] like Figure 2 As shown, the frame 1 includes a base 11, on which four columns 12 are mounted, and an upper beam 13 is mounted on the columns 12. The base 11 is used to fix the lifting device 5; the columns 12 are used to fix the motorized roller conveyor 3 and the sand bucket removal system 6; and the upper beam 13 is used to fix the plate changing mechanism 2.

[0021] like Figure 3As shown, the plate changing mechanism 2 includes a first plate changing trolley 21, on which a positioning block 22 is mounted; a V-shaped wheel 23 is mounted on the first plate changing trolley 21, which is placed on a guide rail 24, which is fixed to the lower side of the upper beam 13; a trolley connector 25 is mounted on the first plate changing trolley 21, which is connected to a second plate changing trolley 26, the structure of which is the same as that of the first plate changing trolley 21; a cylinder push plate 27 is mounted on the second plate changing trolley 26, which is connected to a cylinder 28, which is fixed to the upper beam 13. The first and second plate-changing trolleys 21 and 26 are used to load the top plate. The upper beam can restrict the movement of the top plate directly below it when it is lowered or lowered, thereby enabling boltless top plate replacement and improving replacement efficiency. The positioning block 22 is used for quick positioning of the top plate when replacing it. The V-shaped wheel 23 cooperates with the guide rail 24 to guide the plate-changing trolleys. The trolley connector 25 is used to connect the two plate-changing trolleys, and together with the cylinder push plate 27 and cylinder 28, the two plate-changing trolleys can move synchronously.

[0022] like Figure 2 As shown, the motorized roller conveyor 3 includes a roller conveyor brace 31, which in turn includes a roller conveyor support 32. A roller conveyor support 33 is mounted within the roller conveyor support 32. The roller conveyor support 33 is connected to a drive shaft 34 via a chain, and the drive shaft 34 is connected to a reduction motor 35 via a chain. The chain drive between the roller conveyor support 32, drive shaft 34, and reduction motor 35 improves stability and facilitates maintenance.

[0023] like Figure 4 As shown, the lifting device 5 includes a hydraulic cylinder support 51, on which a hydraulic cylinder 52 is mounted. The head of the hydraulic cylinder 52 is connected to a working platform 53. Four guide rods 54 are mounted on the working platform 53, and the guide rods 54 cooperate with the guide sleeves on the hydraulic cylinder support 51. A sand-falling hopper 55 is mounted on the working platform 53. The hydraulic cylinder support 51 has high strength and can withstand a large load. The hydraulic cylinder 52, in conjunction with the guide rods 54, can realize the up and down movement of the working platform 53 and the sand-falling hopper 55. The sand-falling hopper 55 is used to support the iron mold and collect fallen sand.

[0024] like Figure 2 As shown, the sand hopper removal system 6 includes a roller 61 mounted on a removal roller support 62, and a guide slider 63 mounted on the removal roller support 62. The removal roller support 62 is fixed to a removal roller inclined support 64. The guide slider 63 engages with a groove in the removal roller inclined support 64. The roller 61 is used to move the sand hopper 55 horizontally; the guide slider 63 is used to move the roller support frame horizontally, thereby ensuring that the sand hopper 55 does not interfere with the removal roller during lifting and lowering. During sand removal, the sand hopper 55 can be moved out with the removal roller.

[0025] Working principle:

[0026] When replacing the top plate, taking the replacement of the top plate of the first plate replacement trolley 21 as an example, the top plate is lifted out of the first plate replacement trolley 21 by a crane, and then the required top plate is lifted onto the first plate replacement trolley 21 by a crane, and the top plate is positioned by the positioning block 22.

[0027] When switching the top plate, the top plate is switched by extending and retracting the cylinder push plate 27. When the cylinder push plate 27 extends, the top plate of the first plate changing trolley 21 is in the working position. When the cylinder push plate 27 retracts, the top plate on the second plate changing trolley 26 is in the working position.

[0028] During the sand removal operation, the iron mold 4 is transported to the designated position by the motorized roller conveyor 3. As the lifting device 5 rises, the iron mold 4 is lifted up. After the iron mold 4 moves upward to a certain position, the top rod on the top plate is inserted into the sand-shooting hole of the iron mold 4 to clean the iron mold 4. In addition, in order to avoid the sand falling into the pit and being difficult to clean, the sand removal hopper 55 supporting the iron mold is used to collect the sand that falls into the iron mold.

[0029] When cleaning the sand hopper 55, loosen the bolts fixing the sand hopper 55 to the worktable below, and slide the guide slider 63 inward. As the lifting device 5 descends until the work platform 53 is below the upper surface of the removal roller 61, the sand hopper 55 can be pushed out to the cleaning station to clean the sand hopper 55. After cleaning, push the sand hopper 55 back to the work station. After the lifting device 5 rises above the upper surface of the removal roller 61, fix the sand hopper 55 with bolts and slide the guide slider 63 outward.

Claims

1. A quick-change sand removal machine, characterized in that: The machine includes a frame (1), with an upper beam (13) mounted on top of the frame (1); a plate changing mechanism (2) is provided at the upper end of the frame (1), and a motorized roller conveyor (3) is provided below the plate changing mechanism (2), which is used to place iron molds (4); a lifting device (5) is provided below the motorized roller conveyor (3), and a sand bucket removal system (6) is provided on both sides of the lifting device (5); the plate changing mechanism (2) includes a guide rail (24), a first plate changing trolley (21), and a second plate changing trolley (26); the guide rail (24) is fixed to the lower side of the upper beam (13); the first plate changing trolley (21) The first and second pallet trolleys (21 and 26) are used to load the top plate; both the first and second pallet trolleys (21 and 26) are mounted on the guide rail (24), and both sides of the first and second pallet trolleys (21 and 26) are provided with positioning blocks (22); the first pallet trolley (21) is equipped with a trolley connector (25), which is connected to the second pallet trolley (26); the second pallet trolley (26) is equipped with a cylinder push plate (27), which is connected to a cylinder (28), which is fixed on the upper beam (13); The lifting device (5) includes a hydraulic cylinder support (51) set at the bottom of the frame (1), a hydraulic cylinder (52) is installed in the middle of the hydraulic cylinder support (51), a working platform (53) is connected to the head of the hydraulic cylinder (52), and guide rods (54) are respectively provided at the four corners of the working platform (53). The guide rods (54) cooperate with the guide sleeves on the hydraulic cylinder support (51); a sand drop hopper (55) is installed on the working platform (53).

2. The quick-change sand removal machine according to claim 1, characterized in that: The frame (1) includes a base (11), on which a plurality of columns (12) are provided, and the upper beam (13) is mounted on the columns (12).

3. The quick-change sand removal machine according to claim 1, characterized in that: Both sides of the first pallet changing trolley (21) and the second pallet changing trolley (26) are provided with V-shaped wheels (23), which are placed on the guide rail (24).

4. The quick-change sand removal machine according to claim 1, characterized in that: The motorized roller conveyor (3) includes a geared motor (35) and a roller conveyor brace (31); a roller conveyor support (32) is provided on the roller conveyor brace (31), and a motorized roller (33) is installed in the roller conveyor support (32); the output end of the geared motor (35) is connected to a drive shaft (34), and the drive shaft (34) is connected to the motorized roller (33) through a chain.

5. The quick-change sand removal machine according to claim 1, characterized in that: The sand bucket removal system (6) includes removal roller inclined supports (64) fixed on both sides of the middle part of the frame (1), removal roller support (62) is provided on the removal roller inclined supports (64), and multiple rollers (61) are provided on the removal roller support (62); the removal roller support (62) is also provided with guide sliders (63); the guide sliders (63) cooperate with the grooves of the removal roller inclined supports (64).

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