A molding machine for casting processing

Abstract

The utility model relates to the related field of molding machine especially, a molding machine for casting processing, including molding machine body, workstation, opening, lift frame, guide roller, limit stop, take the mouth, collection frame, limit stop and lift cylinder etc. The utility model provides limit for sand box through two limit stops and two limit stops, improves the stability of sand box in work, and lift frame drives guide roller to move upwards and lifts sand box upwards, makes sand box move upwards higher than limit stop, then can take sand box, because is provided with guide roller, makes sand box not directly with workstation contact, reduces sand box bottom end face friction, more conveniently takes sand box, and if there is sand in use, sand can fall through the gap between guide roller and fall into the collection frame, to realize the quick collection of fallen sand, reduce the subsequent cleaning workload, be favorable to the improvement work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of molding machines, and in particular to a molding machine for casting processing. Background Technology

[0002] A molding machine is a casting equipment that uses air or hydraulic pressure to apply pressure to the molding sand in a sand box through a pressure head or pattern to compact the molding sand for use in making sand molds. The molding machine fills the sand box with loose molding sand and compacts it. Different methods such as vibration compaction, pressing, vibration pressure, and injection pressure are used to compact the loose molding sand in the sand box, so that the sand mold has the necessary strength during transportation and pouring. Then, different mechanisms are used to remove the pattern from the compacted sand mold to achieve the purpose of making sand molds.

[0003] In existing molding machines, the sand box directly contacts the worktable. When the sand box needs to be removed, there is significant friction between the sand box and the worktable. Over time, this can easily cause wear and tear on the sand box or the worktable. This is especially true when manually removing the sand box, as the sand box itself is quite heavy, and the friction with the worktable makes it inconvenient to handle. Some molding machines also have positioning frames on the worktable to improve the stability of the sand box, which further complicates the handling process. In addition, molding sand is prone to falling during use, and this accumulated sand on the worktable increases the amount of cleaning work and can affect work efficiency. Summary of the Invention

[0004] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a molding machine for casting processing to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a molding machine for casting processing, comprising a molding machine body, a worktable, an opening, a lifting frame, guide rollers, a limiting plate, a limiting frame, a lifting cylinder, and a first protective sleeve; the worktable is installed on the molding machine body; an opening is provided on the top surface of the worktable; the lifting frame is movably installed in the opening; two or more guide rollers are movably installed in the lifting frame, and the guide rollers protrude from the inner side of the lifting frame, with a gap between adjacent guide rollers, and a first protective sleeve is fixedly fitted on each guide roller; The limiting plate is installed on two worktables, with the two limiting plates located on the front and rear sides of the opening, respectively; The lifting cylinder is installed inside the workbench, and the piston rod of the lifting cylinder is connected to the lifting frame. When the piston rod of the lifting cylinder is in the fully retracted state, the lifting frame and the guide roller are fully retracted into the opening. When the piston rod of the lifting cylinder is in the fully extended state, the top surface of the guide roller is higher than the top surface of the limiting plate. The top of the workbench is equipped with two limiting frames, which are located on the left and right sides of the opening, respectively.

[0006] Preferably, the front end face of the workbench has a retrieval opening, and a collection frame is movably inserted into the retrieval opening, with the collection frame connected to the inside of the opening.

[0007] Preferably, each edge and corner of the limiting plate is provided with rounded corners.

[0008] Preferably, the guide rollers in the lifting frame are all arranged in parallel, and the axial direction of the guide rollers is left and right.

[0009] Preferably, the limiting frame includes a fixed frame installed on the top surface of the workbench and a plurality of limiting rollers rotatably installed in the fixed frame, each limiting roller being fitted with a second protective sleeve.

[0010] Preferably, the back of the fixing frame is equipped with two or more reinforcing ribs, and the bottom end face of the reinforcing ribs is connected to the molding machine body.

[0011] Preferably, both the first protective sleeve and the second protective sleeve are made of polyurethane or nylon.

[0012] The beneficial effects of this utility model are: This invention provides limiting for the sand box using two limiting plates and two limiting frames, improving the stability of the sand box during operation. The lifting frame drives the guide rollers upwards, lifting the sand box above the limiting plates, allowing it to be retrieved. The guide rollers prevent direct contact between the sand box and the worktable, reducing friction on the bottom surface and making it easier to handle. Furthermore, if molding sand falls during use, it can pass through the gaps between the guide rollers and fall into the collection frame for rapid collection, reducing subsequent cleaning work and improving work efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the molding machine structure of this utility model; Figure 2 This is a front view cross-sectional structural diagram of the workbench of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the workbench of this utility model; Figure 4 This is a schematic diagram of the limiting frame structure of this utility model; Figure 5 This is a schematic diagram of the reinforcing rib distribution structure of this utility model.

[0014] The components include: molding machine body-1, worktable-2, opening-3, lifting frame-4, guide roller-5, limiting plate-6, retrieval port-7, collection frame-8, limiting frame-9, lifting cylinder-10, first protective sleeve-11, fixing frame-91, limiting roller-92, reinforcing rib-93, and second protective sleeve-94. Detailed Implementation

[0015] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0016] like Figures 1 to 3 As shown, this utility model provides a molding machine for casting processing, including a molding machine body 1, a worktable 2, an opening 3, a lifting frame 4, a guide roller 5, a limiting plate 6, a limiting frame 9, a lifting cylinder 10, and a first protective sleeve 11; the worktable 2 is installed on the molding machine body 1; the top surface of the worktable 2 is prepared to have an opening 3; the lifting frame 4 is slidably installed in the opening 3, the lifting frame 4 has a U-shaped structure, and the lifting frame 4 can move vertically up and down along the inner side of the opening 3; Two or more guide rollers 5 are rotatably installed inside the lifting frame 4, and the guide rollers 5 can rotate in the front and back directions inside the lifting frame 4; The guide roller 5 protrudes from the inner side of the lifting frame 4. The adjacent guide rollers 5 are parallel to each other and have a gap. Each guide roller 5 is fixedly fitted with a first protective sleeve 11 made of polyurethane material. Two limiting plates 6 are locked and fixed on the worktable 2. The two limiting plates 6 are located on the front and rear sides of the opening 3 respectively. The two limiting plates 6 limit the front and rear ends of the sand box to reduce the sand box from shifting and sliding back and forth during the operation. The lifting cylinder 10 is locked and fixed inside the worktable 2, and the piston rod of the lifting cylinder 10 is connected to the lifting frame 4. The lifting cylinder 10 is a telescopic cylinder. When the piston rod of the lifting cylinder 10 is in the fully retracted state, the lifting frame 4 and the guide roller 5 are fully retracted into the opening 3. When the piston rod of the lifting cylinder 10 is in the fully extended state, the top surface of the guide roller 5 is higher than the top surface of the limiting plate 6. The top of the workbench 2 is equipped with two limiting frames 9, which are located on the left and right sides of the opening 3 respectively. The two limiting frames 9 limit the left and right ends of the sand box to prevent the sand box from shifting or sliding left and right during operation.

[0017] In this embodiment, the front end face of the workbench 2 is provided with a retrieval opening 7. A collection frame 8 for collecting molding sand is movably inserted into the retrieval opening 7. The top of the collection frame 8 is an open structure, while the bottom of the collection frame 8 is a closed structure. The collection frame 8 is connected to the inside of the opening 3.

[0018] In order to reduce the wear caused by collision and friction between the sand box and the corners of the limiting plate 6 during the movement, each edge and corner of the limiting plate 6 is provided with rounded corners.

[0019] like Figure 4 and Figure 5 As shown, in this embodiment, the limiting frame 9 includes a fixed frame 91, limiting rollers 92, reinforcing ribs 93, and a second protective sleeve 94. The fixed frame 91 is installed on the top surface of the workbench 2. Two or more limiting rollers 92 are rotatably installed inside the fixed frame 91. The limiting rollers 92 protrude from the inner side of the fixed frame 91. Each limiting roller 92 is fitted with a second protective sleeve 94 made of polyurethane material. The length of the limiting roller 92 needs to be greater than the extension distance of the piston rod of the lifting cylinder 10. Two or more reinforcing ribs 93 are installed on the back of the fixed frame 91. The bottom end of the reinforcing ribs 93 is connected to the molding machine body 1. The stability of the fixed frame 91 is improved by the reinforcing ribs 93.

[0020] Specifically, the lifting cylinder 10 is connected to an external pneumatic device. The sand box is placed on top of the guide roller 5, and the position of the sand box is adjusted so that the front and rear ends of the sand box are between the two limiting plates 6, and the left and right ends of the sand box are between the two limiting frames 9. By controlling the lifting cylinder 10, the lifting frame 4, the guide roller 5 and the sand box are moved downward, so that the bottom edge of the sand box moves downward to contact the worktable. At this time, molding sand can be injected into the sand box. At this time, the molding machine body 1 compacts the molding sand in the sand box by means of vibration, compaction, vibration or injection, thereby forming a sand mold in the sand box. When the sand box is working, when molding sand falls, some of the molding sand can pass through the gap between the adjacent guide rollers 5 and enter the collection frame 8, reducing the amount of subsequent molding sand cleaning work. When the sand box needs to be removed, the lifting cylinder 10 can be used to move the lifting frame 4, guide roller 5 and sand box upward. The sand box moves upward and disengages from the top surface of the limiting plate 6. At this time, special equipment or manual pulling can be used to remove the sand box from the workbench 2. Since the sand box is removed on the guide roller 5, the friction between the sand box and the workbench 2 is reduced. In addition, the two sets of limiting rollers 92 provide a limit for the sand box to prevent it from deviating and sliding during the movement, which makes it easy to remove the sand box stably.

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A molding machine for casting processing, comprising a molding machine body and a worktable mounted on the molding machine body; Its features are, Also includes: The opening is located on the workbench; The lifting frame is movably installed inside the opening; Guide rollers, two or more of which are movably installed inside the lifting frame, with the guide rollers protruding from the inner side of the lifting frame and gaps provided between adjacent guide rollers; The limiting plates are installed on two worktables, with the two limiting plates located on the front and rear sides of the opening respectively; The lifting cylinder is installed inside the workbench, and the piston rod of the lifting cylinder is connected to the lifting frame. When the piston rod of the lifting cylinder is in the fully retracted state, the lifting frame and the guide roller are fully retracted into the opening. When the piston rod of the lifting cylinder is in the fully extended state, the top surface of the guide roller is higher than the top surface of the limiting plate. The top of the workbench is equipped with two limiting frames, which are located on the left and right sides of the opening, respectively.

2. The molding machine for casting processing according to claim 1, characterized in that: The front end of the workbench is provided with a retrieval opening, and a collection frame is movably inserted into the retrieval opening. The collection frame is connected to the inside of the opening.

3. The molding machine for casting processing according to claim 1, characterized in that: The limiting plate has rounded corners on all its edges and corners.

4. The molding machine for casting processing according to claim 1, characterized in that: The guide roller is fitted with a first protective sleeve, which is made of either polyurethane or nylon.

5. The molding machine for casting processing according to claim 1, characterized in that: The guide rollers inside the lifting frame are all arranged in parallel, and the axial direction of the guide rollers is left and right.

6. The molding machine for casting processing according to claim 1, characterized in that: The limiting frame includes a fixed frame installed on the top surface of the workbench and several limiting rollers rotatably installed inside the fixed frame. The limiting rollers protrude from the inside of the fixed frame, and the length of the limiting rollers is greater than the extension and retraction distance of the piston rod of the lifting cylinder.

7. The molding machine for casting processing according to claim 6, characterized in that: The back of the fixing frame is equipped with two or more reinforcing ribs, and the bottom end of the reinforcing ribs is connected to the body of the molding machine.

8. The molding machine for casting processing according to claim 6, characterized in that: The limiting roller is fitted with a second protective sleeve, which is made of either polyurethane or nylon.

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