Automatic molding machine for casting

Abstract

The utility model discloses an automatic molding machine for casting. The automatic molding machine comprises a rack, an upper mechanism and a lower mechanism, a group of stand columns are arranged on the rack; the upper mechanism comprises an upper bracket, an upper sand box, an upper compaction cylinder and a top frame used for pressing the lower sand box, the upper bracket is fixed on the stand column or the rack, the upper sand box and the upper compaction cylinder are fixed on the upper bracket, and the top frame is arranged outside the upper sand box in a sleeving manner and is connected with the lower end of the upper compaction cylinder; the lower mechanism comprises a lower sand box, a lower supporting plate, a lower lifting frame, a lower sand barrel seat and a lifting cylinder for driving the lower lifting frame to move; the lower lifting frame and the lower supporting plate are movably arranged on the stand column, the lower sand box is arranged on the lower supporting plate, the lower sand barrel seat is arranged on the lower lifting frame and located in the lower sand box, and an elastic element is arranged between the lower supporting plate and the lower lifting frame. The upper sand box is fixedly arranged, only the lower sand box ascends and descends in the working process, compaction is driven by the upper compaction cylinder on the top frame, the design height of the stand column can be effectively shortened, the structure is stable, and the production takt is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting equipment, in particular to an automatic molding machine for casting. Background Art

[0002] At present, most of the existing casting sand mold compaction molding machines compact from top to bottom relatively. The upper sand box moves downward, and the lower sand box moves upward. After the upper sand box and the lower sand box are matched, relative compaction is carried out from the top of the upper sand box and the bottom of the lower sand box. Since both the upper sand box and the lower sand box are movably arranged on the columns of the molding machine, the designed height of the columns is relatively high, the structural stability is relatively poor, and the working efficiency is affected.

[0003] For example, a sliding-out type molding machine disclosed in Chinese Patent CN212398032U includes a frame, a sand supply structure and a sand mold compaction structure arranged on the frame, an upper sand box and a lower sand box that can move up and down, a lower sand box bracket, and a lifting drive structure for driving the lifting of the lower sand box bracket. The lower sand box sliding-out mechanism is arranged on the lower sand box bracket, and the lower sand box sliding-out mechanism includes a pushing structure for driving the horizontal movement of the lower sand box, and the pushing structure is connected to the lower sand box; the designed height of the columns of its frame is relatively high, which affects the structural stability and working efficiency. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an automatic molding machine for casting, which can effectively shorten the designed height of the columns and has stable structure.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0006] The automatic molding machine for casting includes:

[0007] A frame, on which a group of columns are arranged;

[0008] An upper mechanism, the upper mechanism includes an upper bracket, an upper sand box, an upper compaction cylinder, and a top frame for pressing down the lower sand box. The upper bracket is fixed on the column or the frame, the upper sand box and the upper compaction cylinder are fixed on the upper bracket, and the top frame is sleeved outside the upper sand box and connected to the lower end of the upper compaction cylinder;

[0009] A lower mechanism, the lower mechanism includes a lower sand box, a lower support plate, a lower lifting frame, a lower sand bucket seat, and a lifting cylinder for driving the movement of the lower lifting frame; the lower lifting frame and the lower support plate are movably arranged on the column, the lower sand box is arranged on the lower support plate, the lower sand bucket seat is arranged on the lower lifting frame and is located inside the lower sand box, and an elastic element is arranged between the lower support plate and the lower lifting frame.

[0010] Furthermore:

[0011] The lower support plate and the lower lifting frame are both square structures, and the elastic elements are a set of oil cylinders provided at the corresponding corners between the lower part of the lower support plate and the upper part of the lower lifting frame.

[0012] The upper support bracket is fixed to the top of the column, and the pair of upper compaction cylinders are arranged oppositely, and the pair of upper compaction cylinders are respectively located on both sides of the upper sand box.

[0013] A pattern plate suspension for driving the pattern plate to move horizontally is provided on the frame, a push plate for pushing the pattern is provided at the end of the pattern plate suspension, a pattern receiving transition plate is provided outside the frame corresponding to the push plate, and a pattern receiving lifting frame for lowering and transporting the sand mold is provided corresponding to the pattern receiving transition plate.

[0014] A lower sand mold support plate is provided corresponding to the top of the lower sand bucket seat in the lower sand box.

[0015] Moving guide columns are provided on the lower support plate, and the lower sand box is movably arranged on the moving guide columns.

[0016] A liftable lower sand bucket and a lower sand bucket lifting structure for driving the lower sand bucket to lift are provided on the frame, and the lower sand bucket is communicated with the lower sand bucket seat.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] The automatic molding machine for casting has a reasonable structural design. The upper sand box is fixed to the frame or the column through the upper support bracket, that is, the upper sand box is fixedly arranged. During the working process, only the lower sand box lifts, and is driven by the upper compaction cylinders on the top frame for compaction, which can effectively shorten the design height of the column, has a stable structure, and improves the production rhythm. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following briefly describes the content expressed by each drawing of this specification and the marks in the drawings:

[0020] Figure 1 Schematic diagram of the structure of the molding machine of the utility model Figure 1 。

[0021] Figure 2 Schematic diagram of the structure of the molding machine of the utility model Figure 2 。

[0022] Figure 3 Schematic diagram of the structure of the molding machine of the utility model Figure 3 。

[0023] Figure 4 Partial schematic diagram of the molding machine of the utility model Figure 1 。

[0024] Figure 5 Partial schematic diagram of the molding machine of the utility model Figure 2 。

[0025] In the figure:

[0026] 1. Base, 2. Upper sand receiving funnel, 3. Lower sand receiving funnel, 4. Mold joining transition plate, 5. Mold joining lifting frame, 6. Protective cover, 7. Upper mechanism, 701. Upper sand box, 702. Upper bracket, 703. Upper compaction cylinder, 704. Top frame, 8. Lower mechanism, 801. Lower sand box, 802. Lower sand mold support plate, 803. Lower support plate, 804. Lower lifting frame, 805. Lifting cylinder, 806. Lower sand bucket seat, 807. Oil cylinder, 9. Pattern plate suspension, 10. Column, 11. Lower sand bucket, 12. Lower sand bucket lifting structure. Detailed implementation manners

[0027] The following further elaborates in detail on the specific implementation manners of the present utility model by describing the embodiments with reference to the accompanying drawings.

[0028] As Figures 1 to 5 shown, the automatic molding machine for casting includes a frame, and an upper mechanism and a lower mechanism arranged oppositely up and down; there are four vertical columns 10 on the frame; the upper mechanism is located directly above the lower mechanism.

[0029] The upper mechanism 7 includes an upper bracket 702, an upper sand box 701, an upper compaction cylinder 703, and a top frame 704 for pressing down the lower sand box; the upper bracket is fixed on the column or the frame, preferably, the upper bracket is fixed at the top of the column, the upper sand box and the upper compaction cylinder are fixed on the upper bracket, and the top frame is sleeved outside the upper sand box and connected to the lower end of the upper compaction cylinder.

[0030] The top of the upper sand box is provided with an upper sand receiving funnel 2, and a control valve plate is provided corresponding to the upper sand receiving funnel; the upper sand box is fixedly arranged through the upper bracket up and down; the top frame is a hollow square plate, the top frame is located below the upper bracket, and can move up and down relative to the upper bracket driven by the upper compaction cylinder.

[0031] The lower mechanism 8 includes a lower sand box 701, a lower support plate 803, a lower lifting frame 804, a lower sand bucket seat 806, and a lifting cylinder 805 for driving the lower lifting frame to move; the bottom of the frame is a base 1, the lifting cylinder is fixed on the base, the top of the lifting cylinder is connected to the lower lifting frame, the lower lifting frame and the lower support plate are movably arranged on the column, the lower sand box is arranged on the lower support plate, the lower sand bucket seat is arranged on the lower lifting frame and is located inside the lower sand box, and an elastic element is arranged between the lower support plate and the lower lifting frame to realize the buffer of downward pressure after mold closing through the elastic element.

[0032] Preferably, both the lower support plate and the lower lifting frame are of square structures, and the elastic element is a group of oil cylinders 807 arranged at the corresponding corners between the lower part of the lower support plate and the upper part of the lower lifting frame, with a compact structure and stable operation; and a protective cover 6 is arranged around the column to improve safety.

[0033] The upper bracket 702 is fixed to the top of the column. There is a pair of upper compaction cylinders 703 arranged oppositely. The pair of upper compaction cylinders are respectively located on both sides of the upper sand box. Acting on the top frame through the pair of oppositely arranged upper compaction cylinders, and acting on the edge of the lower sand box through the top frame. The lower sand box and the lower sand bucket seat move relatively to achieve compaction of the sand mold, and the force is stable and reliable.

[0034] A pattern plate suspension 9 for driving the horizontal movement of the pattern plate is provided on the frame. A push plate for pushing the pattern is provided at the end of the pattern plate suspension. A pattern receiving transition plate 4 is provided corresponding to the push plate on the outer side of the frame, and a pattern receiving lifting frame 5 for lowering and transporting the sand mold is provided corresponding to the pattern receiving transition plate; the corresponding setting is compact; the pattern plate suspension and the pattern receiving lifting frame can adopt existing structures.

[0035] A lower sand mold support plate 802 is provided corresponding to the top of the lower sand bucket seat in the lower sand box; a liftable lower sand bucket 11 and a lower sand bucket lifting structure 12 for driving the lifting of the lower sand bucket are provided on the frame. The lower sand bucket is communicated with the lower sand bucket seat; the lower sand bucket and the lower sand bucket seat are lifted synchronously; the lower sand bucket seat and the lower sand bucket lifting structure are located on one side of the column, and a lower sand receiving funnel 3 is provided at the top of the lower sand bucket seat.

[0036] Moving guide columns are provided on the lower support plate, and the lower sand box is movably arranged on the moving guide columns; the lower sand box can be moved out during replacement and maintenance, and the operation is simple.

[0037] The automatic molding machine for casting of the present invention has a reasonable structural design. The upper sand box is fixed to the frame or the column through the upper bracket, that is, the upper sand box is fixedly arranged. During the working process, only the lower sand box moves up and down, and is driven to be compacted by the upper compaction cylinder on the top frame, which can effectively shorten the designed height of the column and the structure is stable; only the lower mechanism moves, improving the production rhythm, that is, improving the production efficiency.

[0038] The above is only an illustration of the preferred embodiments of the present utility model. The above technical features can be arbitrarily combined to form multiple embodiment schemes of the present utility model.

[0039] The present utility model has been described exemplarily above in conjunction with the drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various non-substantive improvements are made by adopting the concept and technical solution of the present utility model, or the concept and technical solution of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. An automatic molding machine for casting, characterized in that: include: A frame, wherein a set of uprights is provided on the frame; The upper mechanism includes an upper bracket, an upper sand box, an upper compacting cylinder and a top frame for pressing down the lower sand box, the upper bracket is fixed on a column or a frame, the upper sand box and the upper compacting cylinder are fixed on the upper bracket, and the top frame is sleeved outside the upper sand box and connected to the lower end of the upper compacting cylinder; The lower mechanism includes a lower sand box, a lower supporting plate, a lower lifting frame, a lower sand bucket seat and a lifting cylinder for driving the lower lifting frame to move; The lower lifting frame and the lower supporting plate are movably arranged on the column, the lower sand box is arranged on the lower supporting plate, the lower sand bucket seat is arranged on the lower lifting frame and located in the lower sand box, and an elastic element is arranged between the lower supporting plate and the lower lifting frame.

2. The automatic molding machine for casting as claimed in claim 1, characterized in that: The lower supporting plate and the lower lifting frame are both square structures, and the elastic element is a group of oil cylinders arranged at corresponding corners between the lower part of the lower supporting plate and the upper part of the lower lifting frame.

3. The automatic molding machine for casting as claimed in claim 1, characterized in that: The upper bracket is fixed on the top of the column, and the upper compacting cylinders are a pair arranged opposite to each other, and the pair of upper compacting cylinders are respectively located on both sides of the upper sand box.

4. The automatic molding machine for casting as claimed in claim 1, characterized in that: The frame is provided with a template suspension for driving the template to move horizontally, the end of the template suspension is provided with a push plate for pushing the template, the outer side of the frame is provided with a template transition plate corresponding to the push plate, and the template lifting frame for lowering and transporting the sand mold is provided corresponding to the template transition plate.

5. The automatic molding machine for casting as claimed in claim 1, characterized in that: A lower sand mold supporting plate is arranged on the top of the lower sand bucket seat in the lower sand box.

6. The automatic molding machine for casting as claimed in claim 1, characterized in that: The lower supporting plate is provided with a movable guide column, and the lower sand box is movably arranged on the movable guide column.

7. The automatic casting molding machine as claimed in claim 1, characterized in that: The frame is provided with a lower sand bucket which can be raised and lowered and a lower sand bucket lifting structure for driving the lower sand bucket to be raised and lowered, and the lower sand bucket is connected with a lower sand bucket seat.

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