Vibrating table for lost foam casting

Abstract

The utility model relates to the field of casting equipment, in particular to a vibration table for lost foam casting, which comprises four groups of transverse vibration components, a longitudinal vibration component and a base, the four groups of transverse vibration assemblies can swing, and the first vibration plates of the four groups of transverse vibration assemblies can vertically abut against the four side surfaces of the sand box and can clamp the sand box; the longitudinal vibration assembly is provided with a second vibration frame fixedly connected to the base, and the sand box can be placed on a second vibration plate on the second vibration frame. According to the utility model, the longitudinal vibration assembly which is provided with the second vibration plate and the second vibration motor is used for supporting the sand box and carrying out longitudinal vibration; the four transverse vibration assemblies which are provided with the first vibration plates and the first vibration motors are used for clamping and fixing the sand box and transversely vibrating the sand box from four directions, so that the compactness in the sand box can be improved or molten metal can be promoted to quickly flow, and the casting quality and the casting efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the field of casting equipment, and particularly relates to a vibrating table for lost foam casting. Background Art

[0002] Lost foam casting is a forming process that uses polymer materials to make lost foam models for precision casting. During the production process, a vibrating table is usually required for vibrating molding and vibrating pouring to promote the filling and compaction of the mold and reduce casting defects such as air holes and shrinkage cavities. To make the molding sand filled in the sand box more dense and reduce the collapse of the sand box or make the molten metal flow more rapidly for grain refinement, the ideal vibration method is to fix the sand box and vibrate the sand box horizontally and longitudinally at the same time. However, most of the current vibrating tables set the excitation source at the bottom of the sand box. The sand box is placed on the vibrating table and vibrates the sand box in only one direction. The compaction effect after vibration or the effect of promoting the rapid flow of molten metal will be limited. In view of this, if the vibrating table can be improved to fix and vibrate the sand box in different directions horizontally and longitudinally to improve the density in the sand box or promote the rapid flow of molten metal, thereby improving the casting quality and casting efficiency, is the problem to be solved in this case. Content of the Utility Model

[0003] To overcome the deficiencies in the prior art, the utility model discloses a vibrating table for lost foam casting, which includes a horizontal vibration assembly, a vertical vibration assembly and a base. The horizontal vibration assembly has four groups and is respectively arranged on the four sides of a square sand box to be vibrated and are all hinged on the base. The horizontal vibration assembly is provided with a first vibration frame, a first vibration motor, a swing frame and a driving cylinder. The four groups of horizontal vibration assemblies can swing under the drive of their respective driving cylinders and can make the first vibration plates on their respective first vibration frames stand upright and abut against the four sides of the sand box and can clamp the sand box; the vertical vibration assembly is provided with a second vibration frame and a second vibration motor, and is fixedly connected to the bottom plate of the base. The second vibration plate on the second vibration frame is placed flat, and the sand box to be vibrated can be placed on this vibration plate. The utility model improves the vibrating table by fixedly connecting the vertical vibration assembly to the base and hinging the four groups of horizontal vibration assemblies to the base. The vertical vibration assembly with a second vibration plate and a second vibration motor is used to support the sand box and perform vertical vibration; the four groups of horizontal vibration assemblies with first vibration plates and first vibration motors are used to clamp and fix the sand box and perform horizontal vibration from four directions, thereby improving the density in the lost foam casting sand box or promoting the rapid flow of molten metal, and further improving the casting quality and casting efficiency.

[0004] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0005] A vibrating table for lost foam casting, comprising a base, wherein a horizontally placed bottom plate is provided at the bottom of the base, and is characterized in that: it further comprises a transverse vibration assembly and a longitudinal vibration assembly. The transverse vibration assembly is provided in four groups, and the four groups of transverse vibration assemblies are respectively arranged on the four sides of a square sand box to be vibrated. The transverse vibration assembly is provided with a vibration plate and a vibration motor fixed on the vibration plate. The transverse vibration assembly is further provided with a swinging member and a driving member. The four groups of transverse vibration assemblies are all hinged on the bottom plate of the base. Driven by their respective driving members, the four groups of transverse vibration assemblies can swing and can make their respective vibration plates stand upright against the four sides of the sand box and can clamp the sand box. The longitudinal vibration assembly is provided with a vibration plate and a vibration motor fixed on the vibration plate. The longitudinal vibration assembly is fixed on the bottom plate of the base, and its vibration plate is horizontally placed. The sand box to be vibrated can be placed on this vibration plate. The transverse vibration assembly and the longitudinal vibration assembly can respectively vibrate the sand box transversely and longitudinally.

[0006] The transverse vibration assembly includes a first vibration frame and a first vibration motor. On one side of the first vibration frame, a first vibration plate is vertically arranged. The first vibration plate is a square flat plate. There are two first vibration motors which are of the same height and symmetrically arranged and fixed on the center line of the back of the first vibration plate.

[0007] The transverse vibration assembly further includes a swinging frame and a driving cylinder. The lower end of the driving cylinder is hinged to the bottom plate of the base, and its upper end is hinged to the upper part of the swinging frame. The lower end of the swinging frame is hinged to the bottom plate of the base. There are two hinge supports for the hinging, and the hinge axes of the two hinge supports are concentric. The middle part on the other side of the first vibration frame is hinged to the upper part of the swinging frame. There are two hinge supports for the hinging, and the hinge axes of the two hinge supports are concentric. The center line of the hinge axis is located on the transverse center plane of the first vibration frame.

[0008] Furthermore, the driving cylinder is an electric cylinder or an oil cylinder.

[0009] The transverse vibration assembly further includes springs. There are two springs which are of the same height and symmetrically arranged. The springs are placed between the first vibration frame and the swinging frame, and the two ends of the springs are respectively fixed to the first vibration frame and the swinging frame. The springs are compression springs.

[0010] The longitudinal vibration assembly includes a second vibration frame and a second vibration motor. On the top of the second vibration frame, a second vibration plate is horizontally arranged. The second vibration plate is a square flat plate. There are two second vibration motors which are of the same height and symmetrically arranged and fixed on the center line of the back of the second vibration plate.

[0011] As described above, the advantages of a vibrating table for lost foam casting provided by the present utility model are as follows: The longitudinal vibration assembly is fixedly connected to the base, and four sets of transverse vibration assemblies are hinged to the base. The longitudinal vibration assembly provided with a second vibration plate and a second vibration motor supports the sand box and performs longitudinal vibration; Four sets of transverse vibration assemblies provided with a first vibration plate and a first vibration motor clamp and fix the sand box and perform transverse vibration from four directions, so that the sand box can be fixed and vibrated from different directions. By improving the vibrating table, the present utility model can improve the compactness in the lost foam casting sand box or promote the rapid flow of the molten metal, thereby improving the casting quality and casting efficiency. The design of the present utility model is reasonable, the structure is simple, the cost is low, and it is convenient to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a general schematic diagram of a vibrating table for lost foam casting according to the present utility model;

[0013] Figure 2 is Figure 1 the schematic view in the direction A in

[0014] Figure 3 is an enlarged schematic diagram of the transverse vibration assembly;

[0015] Figure 4 is Figure 3 the enlarged schematic view in the direction B in

[0016] Figure 5 is an enlarged schematic diagram of the longitudinal vibration assembly;

[0017] Figure 6 is the schematic view of the state where the clamping of the sand box is released when the transverse vibration assembly swings outwards.

[0018] Reference Signs:

[0019] 1 Transverse vibration assembly; 11 First vibration frame; 111 First vibration plate; 12 First vibration motor; 13 Swing frame; 14 Driving cylinder; 15 Spring; 2 Longitudinal vibration assembly; 21 Second vibration frame; 211 Second vibration plate; 22 Second vibration motor; 3 Base; 900 Sand box. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following further describes the present utility model through specific embodiments.

[0021] As shown in Figure 1 , Figure 2 and Figure 6As shown in the figure, a vibrating table for lost foam casting according to the present utility model includes a transverse vibration assembly 1, a longitudinal vibration assembly 2, and a base 3. A horizontally placed bottom plate is provided at the bottom of the base 3. The transverse vibration assembly 1 is provided in four groups, and the four groups of transverse vibration assembly 1 are respectively arranged on four sides of a square sand box 900 to be vibrated. The transverse vibration assembly 1 is provided with a vibration plate and a vibration motor fixed on the vibration plate. The transverse vibration assembly 1 is also provided with a swinging member and a driving member. The four groups of transverse vibration assembly 1 are all hinged on the bottom plate of the base 3. Driven by their respective driving members, the four groups of transverse vibration assembly 1 can swing and can make their respective vibration plates stand upright against the four sides of the sand box 900 and can clamp the sand box 900. The longitudinal vibration assembly 2 is provided with a vibration plate and a vibration motor fixed on the vibration plate. The longitudinal vibration assembly 2 is fixed on the bottom plate of the base 3, and its vibration plate is horizontally placed. The sand box 900 to be vibrated can be placed on this vibration plate. The transverse vibration assembly 1 and the longitudinal vibration assembly 2 can respectively vibrate the sand box 900 transversely and longitudinally.

[0022] As Figures 1 to 4 shown in the figure, the transverse vibration assembly 1 of the present utility model includes a first vibration frame 11, a first vibration motor 12, a swinging frame 13, a driving cylinder 14, and a spring 15. A first vibration plate 111 is vertically provided on one side of the first vibration frame 11. The first vibration plate 111 is a square flat plate. The first vibration motor 12 is provided in two pieces, which are of the same height and symmetrically arranged and fixed on the center line of the back of the first vibration plate 111. The lower end of the driving cylinder 14 is hinged to the bottom plate of the base 3, and its upper end is hinged to the upper part of the swinging frame 13. The lower end of the swinging frame 13 is hinged to the bottom plate of the base 3. The hinge supports used for the hinge are in two groups, and the hinge axes of the two groups of hinge supports are concentric. The middle part of the other side of the first vibration frame 11 is hinged to the upper part of the swinging frame 13. The hinge supports used for the hinge are in two groups, and the hinge axes of the two groups of hinge supports are concentric. The center line of the hinge axis is located on the transverse center plane of the first vibration frame 11. The driving cylinder 14 is an electric cylinder or an oil cylinder. In this embodiment, the driving cylinder 14 is an electric cylinder. The spring 15 is provided in two pieces, and the two pieces of spring 15 are of the same height and symmetrically arranged. The spring 15 is placed between the first vibration frame 11 and the swinging frame 13, and the two ends of the spring 15 are respectively fixed to the first vibration frame 11 and the swinging frame 13. The spring 15 is a compression spring.

[0023] As Figure 1 and Figure 5 shown in the figure, the longitudinal vibration assembly 2 of the present utility model includes a second vibration frame 21 and a second vibration motor 22. A second vibration plate 211 is horizontally provided at the top of the second vibration frame 21. The second vibration plate 211 is a square flat plate. The second vibration motor 22 is provided in two pieces, which are of the same height and symmetrically arranged and fixed on the center line of the back of the second vibration plate 211.

[0024] AsFigure 6 As shown, when the cylinder rod of the driving cylinder 14 of the lateral vibration assembly 1 of the present utility model contracts, it can drive the swing frame 13 to drive the first vibration frame 11 to swing outwards, at this time, the clamping of the sand box 900 can be released to facilitate the taking and placing of the sand box 900.

[0025] The present utility model improves the vibrating table, fixes the longitudinal vibration assembly 2 on the base 3, and hinges four groups of lateral vibration assemblies 1 on the base 3. The longitudinal vibration assembly 2 provided with the second vibration plate 211 and the second vibration motor 22 supports the sand box 900 and performs longitudinal vibration; the four groups of lateral vibration assemblies 1 provided with the first vibration plate 111 and the first vibration motor 12 clamp and fix the sand box 900 and perform lateral vibration from four directions, so as to improve the compactness in the lost foam casting sand box or promote the rapid flow of the molten metal, and further improve the casting quality and casting efficiency.

[0026] The above is only a specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantive modification made to the present utility model using this concept shall fall within the scope of infringement of the protection scope of the present utility model.

Claims

1. A vibrating table used in lost foam casting, comprising a base (3), and a horizontally placed bottom plate is provided at the bottom of the base (3), characterized in that: It also includes a lateral vibration assembly (1) and a longitudinal vibration assembly (2). There are four groups of the lateral vibration assemblies (1), and the four groups of lateral vibration assemblies (1) are respectively arranged on the four sides of the square sand box (900) to be vibrated. The lateral vibration assembly (1) is provided with a vibration plate and a vibration motor fixed on the vibration plate. The lateral vibration assembly (1) also has a swinging member and a driving member. The four groups of lateral vibration assemblies (1) are all hinged on the bottom plate of the base (3). Driven by their respective driving members, the four groups of lateral vibration assemblies (1) can swing and can make their respective vibration plates stand upright against the four sides of the sand box (900) and can clamp the sand box (900). The longitudinal vibration assembly (2) is provided with a vibration plate and a vibration motor fixed on the vibration plate. The longitudinal vibration assembly (2) is fixed on the bottom plate of the base (3), and its vibration plate is placed horizontally. The sand box (900) to be vibrated can be placed on this vibration plate.

2. The vibrating table used in lost foam casting according to claim 1, characterized in that: The lateral vibration assembly (1) includes a first vibration frame (11) and a first vibration motor (12). On one side of the first vibration frame (11), a first vibration plate (111) is vertically arranged. The first vibration plate (111) is a square flat plate. There are two first vibration motors (12) which are of the same height and symmetrically arranged on the center line of the back of the first vibration plate (111).

3. The vibrating table used in lost foam casting according to claim 2, characterized in that: The lateral vibration assembly (1) also includes a swinging frame (13) and a driving cylinder (14). The lower end of the driving cylinder (14) is hinged to the bottom plate of the base (3), and its upper end is hinged to the upper part of the swinging frame (13). The lower end of the swinging frame (13) is hinged to the bottom plate of the base (3), and there are two groups of hinge supports for the hinging, and the hinge axes of the two groups of hinge supports are concentric. The middle part of the other side of the first vibration frame (11) is hinged to the upper part of the swinging frame (13), and there are two groups of hinge supports for the hinging, and the hinge axes of the two groups of hinge supports are concentric. The center line of the hinge axis is located on the lateral center plane of the first vibration frame (11).

4. The vibrating table for lost foam casting according to claim 3, characterized in that: The driving cylinder (14) is an electric cylinder or an oil cylinder.

5. The vibrating table used in lost foam casting according to claim 3, wherein: The lateral vibration assembly (1) also includes springs (15). There are two springs (15), and the two springs (15) are of the same height and symmetrically arranged. The springs (15) are placed between the first vibration frame (11) and the swinging frame (13), and the two ends of the springs (15) are respectively fixed to the first vibration frame (11) and the swinging frame (13).

6. The vibrating table used in lost foam casting according to claim 1, characterized in that: The longitudinal vibration assembly (2) includes a second vibration frame (21) and a second vibration motor (22). On the top of the second vibration frame (21), a second vibration plate (211) is horizontally arranged. The second vibration plate (211) is a square flat plate. There are two second vibration motors (22) which are of the same height and symmetrically arranged on the center line of the back of the second vibration plate (211).

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