Sand box with heat preservation function

Abstract

The utility model provides a sand box with a heat preservation function, which relates to the technical field of casting sand boxes, and comprises a sand box body, a limiting roller, a first buffer frame, a second buffer frame, a limiting hole, a through hole, a semicircular hole, a connecting plate, a fixing component and a flexible heat preservation piece, according to the device, the outside of the sand box body can be effectively protected through the combination of the first buffer frame and the second buffer frame, so that the probability that the sand box is damaged by external impact in the whole casting operation process is remarkably reduced, the service life of the sand box is prolonged, and then the heat preservation effect can be guaranteed; on the basis, a buffer frame is prepared from a polyurethane plate, and a flexible heat preservation part is matched, so that the heat preservation performance of the sand box can be further improved, and the heat preservation effect is better.

Description

Technical Field

[0001] This utility model relates to the field of casting sand box technology, and more specifically, to a sand box with heat preservation function. Background Technology

[0002] V-process casting is a physical molding process that does not add binders, water, or other additives to the molding sand, thus reducing the workload of sand handling and significantly reducing the labor required for molding and cleaning up the sand from the casting. The reuse rate of old sand can reach 95%. This casting process uses a plastic film to seal the sand box and relies on a vacuum pump to extract air from the mold, creating a pressure difference between the inside and outside of the mold. This compacts the dry sand, forming the desired cavity.

[0003] Currently, traditional sandboxes are made of refractory sand, ceramic fiber, or high-temperature insulating bricks. These materials have low thermal conductivity, which can effectively prevent heat from being conducted through the walls of the sandbox. Refractory sand and ceramic fiber are particularly suitable for high-temperature environments because they can withstand high temperatures and reduce heat transfer to the outside. However, once the sandbox is subjected to external impacts during handling or other processes, the surface of the sandbox is prone to cracking and damage, which will significantly reduce its insulation effect.

[0004] The announcement number CN215090557U proposes an improved V-process casting sand box. This device enables the replacement of the metal wire mesh, improves the vacuum level, and the air-permeable filter component is located on one side of the vacuum chamber, directly isolating fine sand particles and dust outside the vacuum chamber. It can be directly cleaned and replaced, and the structure is simple. However, it lacks protection for the outside of the sand box and therefore cannot effectively keep it warm after being subjected to external impact. Utility Model Content

[0005] The purpose of this invention is to solve the problems mentioned in the background art and to propose a sand box with heat preservation function.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A sand box with heat preservation function includes a sand box body, a limiting roller, a first buffer frame, a second buffer frame, a limiting hole, a through hole, a semi-circular hole, a connecting plate, a fixing component, and a flexible heat preservation component.

[0008] Two sets of limiting rollers are symmetrically arranged on the front and rear sides of the sand box body, and each set includes two rollers.

[0009] The first buffer frame and the second buffer frame are respectively provided with limiting holes that correspond one-to-one with the limiting rollers;

[0010] The through-hole is opened on the first buffer frame;

[0011] The semi-circular holes are symmetrically arranged on the first buffer frame and the second buffer frame, respectively;

[0012] The connecting plates are symmetrically arranged on the first buffer frame and the second buffer frame, and the two connecting plates, which are in a horizontally relative position after the first buffer frame and the second buffer frame are accurately aligned, are connected by a set of fixing components.

[0013] Flexible insulation components are respectively disposed on the inner side of the first buffer frame and the second buffer frame and are distributed at intervals with the limiting hole, through hole and semi-circular hole.

[0014] Furthermore, both the first and second buffer frames are made of polyurethane board.

[0015] The above solution uses polyurethane boards to prepare the buffer frame, which can withstand external impacts and has a heat insulation effect.

[0016] Furthermore, the fixing component includes a screw and a fastening nut. The screw passes through a set of connecting plates located at horizontally opposite positions on the first buffer frame and the second buffer frame. The two ends of the screw are respectively threaded with fastening nuts, and the fastening nuts are in contact with the connecting plates.

[0017] The above solution can lock the two buffer frames after they are docked by fixing components.

[0018] Furthermore, a rubber pad with the same shape as the semicircular hole is provided on the semicircular hole.

[0019] The above solution uses rubber pads to prevent hard contact between the two buffer frames and the hanging rollers during the docking process.

[0020] Furthermore, the flexible insulation component is either insulation cotton or polyurethane foam.

[0021] The above solution can further improve the heat preservation effect of the sand box during the casting process by using flexible insulation components.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] Compared to existing technologies, this device can effectively protect the exterior of the sand box body by combining the first and second buffer frames. As a result, the probability of the sand box being damaged by external impacts during the entire casting process is significantly reduced, the service life of the sand box is extended, and the heat preservation effect is guaranteed. On this basis, the buffer frame is made of polyurethane board and combined with flexible heat preservation components to further improve the heat preservation performance of the sand box, resulting in a better heat preservation effect. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the connection plate installation;

[0026] Figure label:

[0027] 1. Sand box body; 2. Limiting roller; 3. First buffer frame; 4. Second buffer frame; 5. Limiting hole; 6. Semi-circular hole; 7. Connecting plate; 8. Screw; 9. Fastening nut; 10. Rubber pad; 11. Flexible insulation component. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0029] like Figure 1 and Figure 2 As shown, a sand box with heat preservation function includes a sand box body 1 (the sand box body 1 has been fully disclosed in the improved V-process casting sand box proposed in announcement number CN215090557U, and belongs to the prior art, the principle of which will not be described), and also includes a limiting roller 2, a first buffer frame 3, a second buffer frame 4, a limiting hole 5, a through hole, a semi-circular hole 6, a connecting plate 7, a fixing component, and a flexible heat preservation component 11.

[0030] Two sets of limiting rollers 2 are symmetrically arranged on the front and rear sides of the sand box body 1, and each set includes two rollers.

[0031] The first buffer frame 3 and the second buffer frame 4 are respectively provided with limiting holes 5 that correspond one-to-one with the limiting rollers 2;

[0032] A through-hole is formed on the first buffer frame 3;

[0033] The semi-circular holes 6 are symmetrically arranged on the first buffer frame 3 and the second buffer frame 4, respectively;

[0034] The connecting plates 7 are symmetrically arranged on the first buffer frame 3 and the second buffer frame 4, and the two connecting plates 7, which are in a horizontally relative position after the first buffer frame 3 and the second buffer frame 4 are accurately aligned, are connected by a set of fixing components.

[0035] Flexible insulation components 11 are respectively disposed inside the first buffer frame 3 and the second buffer frame 4 and are distributed at intervals with the limiting hole 5, the through hole and the semi-circular hole 6.

[0036] In a further refinement of the embodiment of this utility model, both the first buffer frame 3 and the second buffer frame 4 are made of polyurethane board.

[0037] Further refinements of the embodiments of this utility model, such as... Figure 1 As shown, the fixing component includes a screw 8 and a fastening nut 9. The screw 8 passes through a set of connecting plates 7 located at horizontally opposite positions on the first buffer frame 3 and the second buffer frame 4. The two ends of the screw 8 are respectively threaded with fastening nuts 9, and the fastening nuts 9 are in contact with the connecting plates 7.

[0038] In a further refinement of the embodiment of this utility model, the flexible insulation component 11 is either insulation cotton or polyurethane foam.

[0039] The working process of this utility model is as follows:

[0040] First, align the limiting holes 5 on the first buffer frame 3 and the second buffer frame 4 with the limiting rollers 2 on the front and rear sides of the sand box body 1 and insert them. This initially defines the installation position of the buffer frames. The through holes are to allow the vacuum pipe to pass smoothly through the first buffer frame 3 without obstruction, thus facilitating the vacuuming process (the principle of sand box vacuuming has been disclosed in an improved V-process casting sand box proposed in announcement number CN215090557U, and will not be elaborated here). At this time, the two semi-circular holes 6 on the same side can contact the surface of one of the lifting rollers (the function of the lifting rollers is to facilitate the subsequent connection of lifting equipment for the box-turning process). The combined circular hole has the same diameter as the hanging roller, and the two buffer frames can be assembled and fixed by the fixing components. The buffer frames can then protect the outside of the sand box body 1 (it should be noted that the buffer frames and the docking ear plates on the upper and lower sand boxes are distributed at intervals so as not to affect the box assembly process). The buffer frames made of polyurethane board can withstand external impacts and have a heat preservation effect. At the same time, the addition of flexible heat preservation components 11 inside the two buffer frames can further improve the heat preservation effect of the sand box during the casting process, without affecting the docking process of the two buffer frames, improving the heat preservation performance of the sand box and extending the service life of the sand box body 1.

[0041] Compared to existing technologies, this device can effectively protect the exterior of the sand box body by combining the first and second buffer frames. As a result, the probability of the sand box being damaged by external impacts during the entire casting process is significantly reduced, the service life of the sand box is extended, and the heat preservation effect is guaranteed. On this basis, the buffer frame is made of polyurethane board and combined with flexible heat preservation components to further improve the heat preservation performance of the sand box, resulting in a better heat preservation effect.

[0042] In some embodiments, such as Figure 2 As shown, a rubber pad 10 with the same shape as the semi-circular hole 6 is provided on it; in this embodiment, the rubber pad 10 can prevent the two buffer frames from making hard contact with the hanging roller during the docking process.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sand box with heat preservation function, comprising a sand box body (1), characterized in that, It also includes a limiting roller (2), a first buffer frame (3), a second buffer frame (4), a limiting hole (5), a through hole, a semi-circular hole (6), a connecting plate (7), a fixing component, and a flexible insulation component (11). Two sets of limiting rollers (2) are symmetrically arranged on the front and rear sides of the sand box body (1), and each set includes two rollers; The first buffer frame (3) and the second buffer frame (4) are respectively provided with limiting holes (5) corresponding to the limiting rollers (2); The through hole is opened on the first buffer frame (3); The semi-circular holes (6) are symmetrically arranged on the first buffer frame (3) and the second buffer frame (4); The connecting plates (7) are symmetrically arranged on the first buffer frame (3) and the second buffer frame (4), and the two connecting plates (7) in the horizontal relative position after the first buffer frame (3) and the second buffer frame (4) are accurately docked are connected by a set of fixing components. Flexible insulation components (11) are respectively disposed inside the first buffer frame (3) and the second buffer frame (4) and are spaced apart from the limiting hole (5), the through hole and the semi-circular hole (6).

2. A sand box with heat preservation function according to claim 1, characterized in that, Both the first buffer frame (3) and the second buffer frame (4) are made of polyurethane board.

3. A sand box with heat preservation function according to claim 1, characterized in that, The fixing component includes a screw (8) and a fastening nut (9). The screw (8) passes through a set of connecting plates (7) located at horizontal relative positions on the first buffer frame (3) and the second buffer frame (4). The two ends of the screw (8) are respectively threaded with fastening nuts (9) and the fastening nuts (9) are in contact with the connecting plates (7).

4. A sand box with heat preservation function according to claim 1, characterized in that, A rubber pad (10) with the same shape is provided on the semi-circular hole (6).

5. A sand box with heat preservation function according to claim 1, characterized in that, The flexible insulation component (11) is either insulation cotton or polyurethane foam.

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