Gearbox casting molding machine

Abstract

The utility model belongs to gear box casting technical field especially is a gear box casting molding machine, including drive base and four molding mould, drive base four edges all are fixedly connected with rotating support plate, is equipped with cross support plate in the upper portion of drive base, the support plate bottom end fixedly connected with foundry sand initial pressure mechanism in the cross support plate location front side, the foundry sand initial pressure mechanism bottom end has inserted foundry sand side pressure block, foundry sand side pressure block top end fixedly connected with electric telescopic handle, the support plate bottom end fixedly connected with foundry sand pressure compensation mechanism in the cross support plate location rear side, preliminary compaction of foundry sand in molding mould is helped with foundry sand initial pressure mechanism, and the oblique extrusion of foundry sand center is matched with foundry sand side pressure block and electric telescopic handle, can extrude foundry sand in center to side, to promote the compactness of compaction forming at gear box side recess structure place, and the secondary compaction of filled foundry sand is matched with foundry sand pressure compensation mechanism, and the compaction forming effect of gear box is improved.

Description

Technical Field

[0001] This utility model belongs to the field of gearbox casting technology, specifically relating to a gearbox casting molding machine. Background Technology

[0002] In the field of gearbox casting, the molding machine is the core equipment used to compact casting sand to form a mold. Traditional molding machines mostly adopt a unidirectional vertical compaction method. For gearboxes with complex side concave structures, when molding the inside of the gearbox, the resistance between the casting sands makes it difficult for the casting sand to effectively fill the deep cavity concave areas on the side of the gearbox due to the single compaction direction. The casting sand is prone to problems such as incomplete filling and insufficient density in the concave areas, resulting in defects such as porosity and shrinkage in the casting. Utility Model Content

[0003] This invention provides a gearbox casting molding machine that can effectively improve the compaction and molding effect of gearboxes.

[0004] This utility model provides the following technical solution: a gearbox casting molding machine, including a drive base and four molding molds. Rotary support plates are fixedly connected to all four sides of the drive base. The four molding molds are respectively installed on the top of the four rotary support plates. A cross support plate is provided above the drive base. The four support plates of the cross support plate correspond to the positions of the four rotary support plates. A casting sand initial pressing mechanism is fixedly connected to the bottom of the support plate on the front side of the cross support plate. A casting sand side pressing block is inserted through the bottom of the casting sand initial pressing mechanism. An electric telescopic rod is fixedly connected to the top of the casting sand side pressing block. A casting sand replenishing pressing mechanism is fixedly connected to the bottom of the support plate on the rear side of the cross support plate.

[0005] The casting sand initial pressing mechanism has a relief groove in its center, and the relief groove is matched with the size of the casting sand side pressing block.

[0006] The cross support plate is fixedly connected to a packing box at the bottom of the support plate on the left side, and the packing box is located above the corresponding molding mold.

[0007] The cross support plate has a material replenishment box fixedly connected to the bottom of the support plate on the right side, and the material replenishment box is located above the corresponding molding mold.

[0008] The top of the cross support plate is fixedly connected to a reinforcing rod, which corresponds to the position of the initial pressing mechanism and the supplementary pressing mechanism for casting sand.

[0009] The cross-shaped support plate is fixedly connected to a support frame on its side.

[0010] The support frame has a central support rod rotatably connected to its bottom center, and the central support rod is fixedly connected to the drive base.

[0011] The beneficial effects of this utility model are:

[0012] 1. The initial compaction of the casting sand in the molding die is achieved by the casting sand initial compaction mechanism. Combined with the casting sand side pressure block and electric telescopic rod to tilt and squeeze the center of the casting sand, the casting sand at the center can be squeezed to the side to improve the compaction density of the recessed structure on the side of the gearbox. Combined with the casting sand replenishment mechanism to compact the filling casting sand for the second time, the compaction effect of the gearbox can be effectively improved.

[0013] 2. The cross-shaped distribution of the four rotating support plates, along with the cross-shaped structure of the support plates, combined with the drive base to rotate the four rotating support plates, enables multi-station, multi-process sand compaction molding of the gearbox, effectively improving the casting efficiency of the gearbox.

[0014] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the initial pressing mechanism for casting sand in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the sand-casting side pressure block in this utility model;

[0018] Figure 4 This is a bottom view of the cross support plate in this utility model.

[0019] In the diagram: 1. Drive base; 11. Rotating support plate; 2. Molding mold; 3. Cross support plate; 31. Casting sand initial pressing mechanism; 311. Relief groove; 32. Casting sand side pressure block; 321. Electric telescopic rod; 33. Casting sand replenishment mechanism; 34. Filling box; 35. Material replenishment box; 36. Reinforcing rod; 4. Support frame; 41. Central support rod. Detailed Implementation

[0020] Please see Figures 1-4The present invention provides the following technical solution: a gearbox casting molding machine, comprising a drive base 1 and four molding molds 2. Rotary support plates 11 are fixedly connected to all four sides of the drive base 1. The four molding molds 2 are respectively installed on the top of the four rotary support plates 11. A cross support plate 3 is provided above the drive base 1. The four support plates of the cross support plate 3 correspond to the positions of the four rotary support plates 11. A casting sand initial pressing mechanism 31 is fixedly connected to the bottom of the support plate on the front side of the cross support plate 3. A casting sand side pressing block 32 is inserted through the bottom of the casting sand initial pressing mechanism 31. An electric telescopic rod 321 is fixedly connected to the top of the casting sand side pressing block 32. A casting sand replenishing pressing mechanism 33 is fixedly connected to the bottom of the support plate on the rear side of the cross support plate 3.

[0021] In this implementation scheme: the feeding mechanism delivers casting sand into the filling box 34, which then falls downwards into the corresponding molding mold 2. The driving base 1 starts the rotating support plate 11 to rotate, causing the already filled molding mold 2 to move to below the casting sand initial pressing mechanism 31. The telescopic rod of the casting sand initial pressing mechanism 31 drives the pressure plate to move downwards, initially compacting the casting sand in the molding mold 2. Subsequently, the casting sand side pressure block 32 extends downwards under the action of the electric telescopic rod 321, squeezing the casting sand at the center of the molding mold 2 to the side. The casting sand enters the recessed structure on the side of the gearbox, and the compaction density of the recessed structure on the side of the gearbox is improved through lateral compression. Then, both the telescopic rod of the casting sand initial pressing mechanism 31 and the electric telescopic rod 321 retract and return to their original positions. Subsequently, the drive base 1 drives the rotating support plate 11 to rotate 90 degrees again, and the molding mold 2 moves to the bottom of the feeding box 35. The material falls into the recessed area of ​​the molding mold 2 through the feeding box 35. Then, the drive base 1 drives the rotating support plate 11 to rotate 90 degrees again, and the sand filling and pressing mechanism 33 performs secondary compaction on the material filled in the molding mold 2. Through initial pressing, side pressing and secondary compaction, the compaction and molding effect of the gearbox can be effectively improved. The cross distribution of the four rotating support plates 11 and the cross-shaped structure of the cross support plate 3, together with the drive base 1 to drive the rotation of the four rotating support plates 11, can perform the sand compaction and molding work of the gearbox in multiple stations and processes, effectively improving the casting and molding efficiency of the gearbox.

[0022] The casting sand initial pressing mechanism 31 has a relief groove 311 in the center, which matches the size of the casting sand side pressing block 32. By setting the relief groove 311, the casting sand side pressing block 32 can be made to make way so that the casting sand side pressing block 32 can pass through the center of the casting sand initial pressing mechanism 31.

[0023] The cross support plate 3 is fixedly connected to the bottom of the support plate on the left side with a filling box 34, which is located above the corresponding molding mold 2. The filling box 34 can be used to fill the molding mold 2 initially. The pipe above the filling box 34 is connected to the pipe of the feeding mechanism through the pipe connection structure.

[0024] The cross support plate 3 is fixedly connected to the bottom of the support plate on the right side with a feeding box 35. The feeding box 35 is located above the corresponding molding mold 2. By setting the feeding box 35, the molding mold 2 can be fed with material to fill the depression caused by the side pressure in the molding mold 2. The pipe above the feeding box 35 is connected to the pipe of the feeding mechanism through the pipe connection structure.

[0025] A reinforcing rod 36 is fixedly connected to the top of the cross support plate 3. The reinforcing rod 36 corresponds to the position of the initial pressing mechanism 31 and the supplementary pressing mechanism 33. By setting the reinforcing rod 36, the cross support plate 3 can be reinforced to withstand the reaction force generated when the initial pressing mechanism 31, the side pressing block 32 and the supplementary pressing mechanism 33 are squeezed.

[0026] A support frame 4 is fixedly connected to the side of the cross support plate 3; the support frame 4 can support and position the cross support plate 3.

[0027] A central support rod 41 is rotatably connected to the bottom center of the support frame 4, and the central support rod 41 is fixedly connected to the drive base 1; by setting the central support rod 41, the center of the cross support plate 3 can be supported, thereby improving the stability of the cross support plate 3.

[0028] The working principle and usage process of this utility model are as follows: The feeding mechanism delivers casting sand into the filling box 34, which then falls downwards into the corresponding molding mold 2. The driving base 1 starts the rotating support plate 11 to rotate, causing the molding mold 2, which has already been filled, to move to below the casting sand initial pressing mechanism 31. The telescopic rod of the casting sand initial pressing mechanism 31 drives the pressure plate to move downwards, initially compacting the casting sand in the molding mold 2. Subsequently, the casting sand side pressure block 32 extends downwards under the action of the electric telescopic rod 321, squeezing the casting sand at the center of the molding mold 2 to the side. The casting sand enters the gearbox. At the recessed structure on the side, the compaction density of the recessed structure on the side of the gearbox is improved by lateral extrusion. Then, the telescopic rod of the initial pressing mechanism 31 and the electric telescopic rod 321 retract and reset. Then, the driving base 1 drives the rotating support plate 11 to rotate 90 degrees again. The molding mold 2 moves to the bottom of the feeding box 35. The material falls into the recessed area of ​​the molding mold 2 through the feeding box 35. Then, the driving base 1 drives the rotating support plate 11 to rotate 90 degrees again. The sand filling mechanism 33 performs secondary compaction on the material filled in the molding mold 2.

Claims

1. A gearbox casting molding machine, comprising a drive base (1) and four molding molds (2), characterized in that: The drive base (1) is fixedly connected to four rotating support plates (11) on all four sides. The four molding molds (2) are respectively installed on the top of the four rotating support plates (11). A cross support plate (3) is provided above the drive base (1). The four support plates of the cross support plate (3) correspond to the positions of the four rotating support plates (11). The bottom of the support plate on the front side of the cross support plate (3) is fixedly connected to a sand casting initial pressing mechanism (31). A sand casting initial pressing mechanism (31) is inserted at the bottom of the sand casting initial pressing mechanism (31). An electric telescopic rod (321) is fixedly connected to the top of the sand casting side pressing block (32). A sand casting supplementing pressing mechanism (33) is fixedly connected to the bottom of the support plate on the rear side of the cross support plate (3).

2. The gearbox casting molding machine according to claim 1, characterized in that: The initial pressing mechanism (31) for casting sand has a relief groove (311) in the center, and the relief groove (311) is matched with the size of the side pressing block (32) for casting sand.

3. The gearbox casting molding machine according to claim 1, characterized in that: The cross support plate (3) is fixedly connected to the bottom end of the support plate on the left side with a filling box (34), which is located above the corresponding molding mold (2).

4. The gearbox casting molding machine according to claim 1, characterized in that: The cross support plate (3) is fixedly connected to the bottom of the support plate on the right side with a material replenishment box (35), which is located above the corresponding molding mold (2).

5. A gearbox casting molding machine according to claim 1, characterized in that: A reinforcing rod (36) is fixedly connected to the top of the cross support plate (3), and the reinforcing rod (36) corresponds to the position of the initial pressing mechanism (31) and the supplementary pressing mechanism (33).

6. A gearbox casting molding machine according to claim 1, characterized in that: The cross support plate (3) is fixedly connected to a support frame (4) on its side.

7. A gearbox casting molding machine according to claim 6, characterized in that: The support frame (4) has a central support rod (41) rotatably connected to the bottom center, and the central support rod (41) is fixedly connected to the drive base (1).

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