CN206316330U - A kind of equal moulding machine of grade for being used to manufacture sand mold - Google Patents

Abstract

The utility model discloses an equal molding machine for manufacturing sand molds, which comprises upper and lower sand boxes, a template horizontally arranged between the upper and lower sand boxes, and sand pressing mechanisms respectively arranged corresponding to the upper and lower sand boxes. The sand pressing mechanism includes a vertically arranged push rod mechanism. A horizontally arranged pressing plate is fixed on the end of the pushing rod mechanism close to the upper and lower sand boxes. The corresponding pressing plates of each sand box are respectively located in each sand box. The sand pressing mechanism also includes a number of fixed The vertical cylinder on the outside of the pressure plate on the same side, the piston rod assembly of the vertical cylinder respectively passes through the pressure plate on the same side. This uniform molding machine is used to make sand molds. Compared with the existing pressure plate that is only pushed by the push rod mechanism, the sand is uniformly compacted. , according to the compactness of each part of the molding sand, several vertical cylinders are used to achieve different degrees of advancement, so that the final degree of compaction of each part of the molding sand is the same, that is, the degree of compaction of the sand mold after compaction is more uniform, and it is convenient for subsequent sand mold ejection.

Description

A uniform molding machine for making sand molds

technical field

The utility model relates to casting equipment used for manufacturing sand molds, in particular to an equal molding machine used for manufacturing sand molds.

Background technique

The molding machine is a casting equipment used to make sand molds. The general process of its work is to fill the molding sand into the molding machine, and make the loose molding sand in the sand box compact by different methods such as shaking, compacting, shock pressure, and injection pressure. Solid, and then use different mechanisms to take out the compact sand mold. The structure of existing molding machine mostly is, comprises casing, and casing is provided with model, sand inlet and the formwork driven by drive mechanism, after molding sand enters casing by sand inlet, template moves and compacts molding sand. In this kind of molding machine, the sand inlet is usually set on the side wall of the box, and the molding sand entering the box from the sand inlet has low flatness and uneven compactness. If the sand is compacted, the compactness of each part of the obtained sand mold will be uneven, especially the bottom part of the box body, so that the model is easy to be damaged when the sand mold is demoulded.

Contents of the invention

The purpose of the utility model is to provide a uniform molding machine for making sand molds.

The technical solution for realizing the purpose of this utility model is that a kind of equal molding machine for making sand molds includes upper and lower sand boxes, templates arranged horizontally between the upper and lower sand boxes, and corresponding to the upper and lower sand boxes respectively. The sand pressing mechanism is set, the formwork is fixedly connected with the upper and lower sand boxes, the upper and lower sand boxes are equipped with upper and lower molds fixed on the formwork, and sand inlets are opened on the side walls of the upper and lower sand boxes. The sand pressing mechanism includes a vertically arranged push rod mechanism, and a horizontally arranged pressing plate is fixed on the end of the pushing rod mechanism close to the upper and lower sand boxes. The corresponding pressing plates of each sand box are respectively located in each sand box. The sand pressing mechanism also includes Several vertical air cylinders are fixed on the outside of the pressure plate on the same side, and the piston rod assemblies of the vertical air cylinders respectively pass through the pressure plate on the same side.

Further, in the same sand pressing mechanism, several vertical cylinders are fixed on the push rod mechanism. The vertical cylinder is fixedly connected with the push rod mechanism, and the operation with the push rod mechanism is more unified.

Further, the vertical cylinder piston rod assembly includes a vertical cylinder piston rod and a horizontal plate fixed at its end. In this way, the vertical cylinder acts, and the horizontal plate directly compacts the molding sand. Compared with the case where the vertical cylinder piston rod assembly only includes a single vertical cylinder piston rod, the area of the horizontal plate is slightly larger than the end of the vertical cylinder piston rod, and the area of the local molding sand is compacted. It is also slightly larger, which can better balance the compactness of local molding sand with vertical cylinder compaction and without vertical cylinder compaction.

The utility model is used for the uniform molding machine for manufacturing sand molds. The sand pressing mechanism includes a pressing plate driven by a push rod mechanism and several vertical cylinders. The vertical cylinder acts, and the pushed-out piston rod assembly compacts the local molding sand again. Compared with the existing push rod mechanism that only pushes the pressure plate to compact the molding sand uniformly, it uses several vertical cylinders to achieve different degrees of compaction of the local molding sand. Advance, so that the degree of tightness of each local molding sand is the same, that is, the degree of compactness of the sand mold after compaction is more uniform, and it is convenient for the subsequent sand mold to be released from the mold.

Description of drawings

Fig. 1 is the structural schematic diagram of the equal molding machine that the utility model is used to manufacture sand mold;

Fig. 2 is a schematic cross-sectional structure diagram of the uniform molding machine used for manufacturing sand molds of the present invention.

detailed description

As shown in Figure 1 and Figure 2, an equal molding machine for making sand molds, including upper and lower sand boxes (1, 2), and a template 3 horizontally arranged between the upper and lower sand boxes (1, 2) , and corresponding to the upper and lower sand boxes (1, 2) respectively set sand pressing mechanism 4, the template 3 is fixedly connected with the upper and lower sand boxes (1, 2), and the upper and lower sand boxes (1, 2) are equipped with There are upper and lower molds (5, 6) fixed on the formwork 3, sand inlets 7 are opened on the side walls of the upper and lower sand boxes (1, 2), and the sand pressing mechanism 4 includes vertically arranged pushers. The rod mechanism 41 and the push rod mechanism 41 are fixed on the end 411 of the upper and lower sand boxes (1, 2) to fix a horizontally arranged pressing plate 42, and the corresponding pressing plates 42 of each sand box are respectively located in each sand box, and the sand pressing mechanism 4 also It includes several vertical cylinders 43 fixed on the outside of the same side of the pressure plate 42 , and the piston rod assemblies 431 of the vertical cylinders 43 pass through the same side of the pressure plate 42 respectively. In the same sand pressing mechanism 4, several vertical cylinders 43 are fixed on the push rod mechanism 41. The vertical cylinder piston rod assembly 431 includes a vertical cylinder piston rod 4311 and a horizontal plate 4312 fixed at its end.

The utility model is used in the uniform molding machine for manufacturing sand molds. After the molding sand enters the upper and lower sand boxes (1, 2) from the sand inlet 7, the push rod mechanism 41 acts to push the pressing plate 42 to initially compact the molding sand, and then several vertical cylinders 43 action, the released piston rod assembly 431 compacts the local molding sand again. When working, the pressure of several vertical cylinders 43 can be the same. In this case, the force on each part of the molding sand is also the same. The original denser part of the molding sand can be pushed to a shallower depth by the vertical cylinders 43, and the originally sparser part of the molding sand , the depth that the vertical cylinder 43 can advance is deep, so that the compactness of this part of the molding sand is the same as that of its part, and uniform; several vertical cylinders 43 can also set different pressures for different parts of the molding sand, and control the push-out length of each vertical cylinder 43 according to the shape of the model , so that the compaction of the compacted sand is more uniform.

The utility model is used for making sand molding machines. The sand pressing mechanism 4 includes a pressing plate 42 pushed by a push rod mechanism 41 and a number of vertical cylinders 43. The pressing plate 42 pairs the molding sand in the upper and lower sand boxes (1, 2). After the initial compaction of a large area, several vertical cylinders 43 act, and the pushed-out piston rod assembly 431 compacts the local molding sand again. Compared with the existing push rod mechanism, which only pushes the pressing plate to uniformly compact the molding sand, it is aimed at each local molding sand. The compactness of the mold is achieved by several vertical cylinder assemblies 43 to achieve different degrees of advancement, so that the final compactness of each part of the sand is the same, that is, the compactness of the sand mold after compaction is more uniform, and it is convenient for subsequent sand mold release.

The utility model is used in the uniform molding machine for manufacturing sand molds. In order to make the operation of the vertical cylinder 43 and the push rod mechanism 41 more unified, preferably, several vertical cylinders 43 in the same sand pressing mechanism 4 are fixed on the push rod mechanism 41; The piston rod assembly 431 of the present utility model can only include the vertical cylinder piston rod 4311, and can also include the vertical cylinder piston rod 4311 and the horizontal plate 4312 fixed on its end. For better balance, there is a vertical cylinder 43 for compaction and no vertical cylinder 43 The compactness of the compacted local molding sand, preferably, the vertical cylinder piston rod assembly 431 includes a vertical cylinder piston rod 4311 and a horizontal plate 4312 fixed at its end.

Claims (3)

1. A uniform molding machine for making sand molds, comprising upper and lower sand boxes, a template positioned horizontally between the upper and lower sand boxes, and a sand pressing mechanism corresponding to the upper and lower sand boxes respectively, the template and The upper and lower sand boxes are fixedly connected, and the upper and lower sand boxes are equipped with upper and lower molds fixed on the formwork, and sand inlets are opened on the side walls of the upper and lower sand boxes. The sand pressing mechanism includes a vertical The push rod mechanism is fixed on the end of the push rod mechanism close to the upper and lower sand boxes, and a horizontally arranged pressure plate is fixed. The corresponding pressure plates of each sand box are respectively located in each sand box. It is characterized in that: the sand pressure mechanism also includes several The vertical cylinder on the outside of the side pressing plate, and the piston rod assembly of the vertical cylinder pass through the pressing plate on the same side respectively. 2. The uniform molding machine for making sand molds according to claim 1, characterized in that: in the same sand pressing mechanism, several vertical cylinders are fixed on the push rod mechanism. 3. The uniform molding machine for manufacturing sand molds according to claim 1, characterized in that: the vertical cylinder piston rod assembly comprises a vertical cylinder piston rod and a horizontal plate fixed at its end.