Casting sand box

Abstract

The utility model provides a casting sand box, which belongs to the technical field of production casting and comprises an upper box, a reinforcing part is arranged on the upper surface of the upper box and comprises a plurality of transverse reinforcing plates, the linear length of the transverse reinforcing plates is equal to the transverse length of the upper box, and the transverse reinforcing plates are parallel to each other. Gaps are formed between the two transverse reinforcing plates on the outermost side and the longitudinal edges of the upper box, a plurality of longitudinal long plates and longitudinal short plates are perpendicularly arranged between the transverse reinforcing plates, the ends of the longitudinal long plates are flush with the longitudinal edges of the upper box, and reserved areas are formed between the transverse reinforcing plates on the outermost side and part of the longitudinal long plates. A pouring gate opening is formed in the upper box and located in the corresponding reserved area; a middle box; the upper box, the middle box and the lower box are sequentially stacked; the upper box has the advantages that the transverse reinforcing plates and the longitudinal short plates are vertically arranged to form a #-shaped structure, so that the overall strength of the upper box is enhanced, after the weight is placed on the reinforcing part, the reinforcing part can support the weight, and the upper box is prevented from being pressed to deform due to direct contact with the weight.

Description

Technical Field

[0001] The utility model belongs to the technical field of production casting, and particularly relates to a casting sand box. Background Art

[0002] Casting refers to the process of melting solid metal into liquid and pouring it into a mold with a specific shape, waiting for it to solidify and form, and obtaining a casting with a predetermined shape, size and performance after finishing treatment. A sand box is often used in the casting process. The sand box is a part of the mold and is mainly used to hold and support the sand mold. The sand box generally includes an upper box, a middle box and a lower box, and a complete sand box is obtained by combining the upper box, the middle box and the lower box. After the boxes are combined, weights need to be placed on the upper box to prevent the sand mold in the sand box from pushing up the middle of the upper box when heated and expanded. However, directly placing weights on the upper box may cause the risk of deforming the upper box. Content of the Utility Model

[0003] The purpose of the utility model is to provide a casting sand box that strengthens the overall strength of the upper box in view of the above problems existing in the prior art.

[0004] The purpose of the utility model can be achieved by the following technical solutions: A casting sand box, comprising:

[0005] An upper box, a strengthening part is arranged on the upper surface of the upper box. The strengthening part includes a plurality of transverse strengthening plates. The linear length of the transverse strengthening plates is equal to the transverse length of the upper box, and the plurality of transverse strengthening plates are parallel to each other. There is a gap between the two outermost transverse strengthening plates and the longitudinal edges of the upper box. A plurality of longitudinal long plates and longitudinal short plates are vertically arranged between the transverse strengthening plates. The ends of the longitudinal long plates are flush with the longitudinal edges of the upper box. A reserved area is formed between the outermost transverse strengthening plate and some of the longitudinal long plates. A pouring gate is arranged on the upper box in the corresponding reserved area;

[0006] A middle box;

[0007] A lower box, the upper box, the middle box and the lower box are stacked in sequence.

[0008] In the above-mentioned casting sand box, stress dispersion angles are arranged at the ends of the transverse strengthening plates and the longitudinal strengthening plates.

[0009] In the above-mentioned casting sand box, a plurality of sand mold connectors are arranged on each inner wall surface of the middle box.

[0010] In the above-mentioned casting sand box, the sand mold connector includes a fixing part and a connecting part. The connecting part is fixed to the inner wall of the middle box through the fixing part, and the connecting part is used to extend into the sand mold.

[0011] In the above-mentioned foundry sand box, the connecting part includes a connecting rod, and the fixing part includes a plurality of fixing rods. The plurality of fixing rods are perpendicularly fixed to the inner wall of the middle box. The connecting rod is parallel to the inner wall, and the connecting rod is fixed to the plurality of fixing rods.

[0012] In the above-mentioned foundry sand box, a gap is provided between every two adjacent fixing rods. In each sand mold connecting piece, the gap distance between the fixing rods in the middle position is smaller than the gap distance between the fixing rods on both sides.

[0013] In the above-mentioned foundry sand box, a plurality of hanging lugs are provided on the upper box, the middle box and the lower box. Each hanging lug includes two lifting lugs, and a reinforcing lug is provided between the two lifting lugs. Connecting holes are provided between the lifting lugs and the reinforcing lugs. The connecting rod passes through the connecting holes on the lifting lugs and the reinforcing lugs, and the connecting rod is detachably connected to the lifting lugs.

[0014] In the above-mentioned foundry sand box, a first reinforcing part is provided between the two lifting lugs and the reinforcing lug in each hanging lug on the lower box.

[0015] In the above-mentioned foundry sand box, a second reinforcing part is provided between the two lifting lugs and the middle box in each hanging lug on the middle box.

[0016] In the above-mentioned foundry sand box, a plurality of bolt connection holes are provided at the edges of the upper box, the middle box and the lower box. A gap is provided between every two adjacent bolt connection holes in each edge, and the gap distance between the two adjacent bolt connection holes in the middle position is smaller than the gap distance between the two adjacent bolt connection holes on both sides.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The plurality of horizontal reinforcing plates and the longitudinal short plates are perpendicularly arranged to form a "well" - shaped structure to strengthen the overall strength of the upper box. Then, when the weight is placed on the reinforcing part, the reinforcing part can support the weight, avoiding the upper box being directly contacted by the weight and being pressed and deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three - dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a three - dimensional structural schematic diagram of the upper box;

[0020] Figure 3 is a three - dimensional structural schematic diagram of the middle box;

[0021] Figure 4 is a three - dimensional structural schematic diagram of the lower box.

[0022] In the figure, upper box 100; transverse reinforcing plate 101; longitudinal short plate 102; longitudinal long plate 103; reserved area 104; pouring gate 105; stress dispersion angle 106; middle box 200; sand mold connecting piece 201; fixing rod 202; connecting rod 203; lower box 300; lifting lug 400; lifting ear 401; reinforcing ear 402; first reinforcing plate 403; second reinforcing plate 404; bolt connection hole 405. Specific embodiments

[0023] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indication also changes accordingly.

[0025] As Figures 1-4 shown, a casting sand box includes:

[0026] An upper box 100, the upper surface of the upper box 100 is provided with a strengthening part, the strengthening part includes a plurality of transverse reinforcing plates 101, the straight length of the transverse reinforcing plates 101 is equal to the transverse length of the upper box 100, and the plurality of transverse reinforcing plates 101 are parallel to each other. There is a gap between the two outermost transverse reinforcing plates 101 and the longitudinal edges of the upper box 100. A number of longitudinal long plates 103 and longitudinal short plates 102 are vertically arranged between the transverse reinforcing plates 101. The ends of the longitudinal long plates 103 are flush with the longitudinal edges of the upper box 100. A reserved area 104 is formed between the outermost transverse reinforcing plate 101 and some longitudinal long plates 103. A pouring gate 105 is provided on the upper box 100 within the corresponding reserved area 104;

[0027] A middle box 200;

[0028] A lower box 300, the upper box 100, the middle box 200 and the lower box 300 are stacked in sequence.

[0029] In this embodiment, multiple transverse reinforcing plates 101 are perpendicularly arranged with the longitudinal short plates 102 to form a "grid" structure, strengthening the overall strength of the upper box 100. Then, when the iron weights are placed on the strengthening part, the strengthening part can support the iron weights, preventing the upper box 100 from being deformed by direct contact with the iron weights; there is a gap between the two outermost transverse reinforcing plates 101 and the longitudinal edges of the upper box 100. The existence of the longitudinal long plates 103 can strengthen the partial area reserved by the outermost transverse reinforcing plates 101, and the remaining area is reserved as the reserved area 104 for placing the runner basins; it can also be understood that the strengthening part on the upper box 100 is composed of the perpendicular fixation of the transverse reinforcing plates 101 and the longitudinal long plates 103. For the places where the reserved area 104 needs to be set, the ends of the longitudinal long plates 103 are cut off to form the longitudinal short plates 102.

[0030] Further preferably, stress dispersion angles 106 are provided at the ends of both the transverse reinforcing plates 101 and the longitudinal long plates 103. The functions of the transverse reinforcing plates 101 and the longitudinal long plates 103 are both to strengthen the upper box 100 and prevent it from bulging and deforming. Then, in order to prevent stress concentration at the ends of the reinforcing plates during the use of the upper box 100, which may lead to material fatigue or fracture, stress dispersion angles 106 are provided at their ends.

[0031] Preferably, multiple sand mold connectors 201 are provided on each inner wall of the middle box 200 to increase the connection strength between the sand mold and the middle box 200 during mold turning and prevent it from falling off.

[0032] Further preferably, the sand mold connector 201 includes a fixing part and a connecting part. The connecting part is fixed to the inner wall of the middle box 200 through the fixing part, and the connecting part is used to extend into the sand mold.

[0033] Specifically, the connecting part includes a connecting rod 203, and the fixing part includes multiple fixing rods 202. The multiple fixing rods 202 are perpendicularly fixed to the inner wall of the middle box 200, the connecting rod 203 is parallel to the inner wall, and the connecting rod 203 is fixed to the multiple fixing rods 202.

[0034] In this embodiment, the arrangement of the fixing rods 202 makes the connecting rod 203 protrude from the inner wall. Then, after the sand mold is formed, the connecting rod 203 can extend into the sand mold, increasing the contact area between the sand mold and the middle box 200, and the existence of the connecting rod 203 can also provide a supporting force for the sand mold; the existence of the fixing rods 202 can not only be used as a connector between the middle box 200 and the connecting rod 203, but also extend into the sand mold and be used as sand mold support.

[0035] Further preferably, a gap is provided between every two adjacent fixing rods 202. In each sand mold connector 201, the gap distance between the fixing rods 202 in the middle position is smaller than the gap distance between the fixing rods 202 on both sides.

[0036] In this embodiment, the fixing rod 202 serves as a connecting member between the connecting rod 203 and the middle box 200. Since the force at the middle position is relatively large, the gap distance of the fixing rod 202 at the middle position is set to be shorter, which can withstand greater pressure to increase the service life of the connecting rod 203.

[0037] Preferably, a plurality of hanging lugs 400 are provided on the upper box 100, the middle box 200, and the lower box 300. Each hanging lug 400 includes two lifting lugs 401, and a reinforcing lug 402 is provided between the two lifting lugs 401. Connecting holes are provided between the lifting lug 401 and the reinforcing lug 402. The connecting rod 203 passes through the connecting holes on the lifting lug 401 and the reinforcing lug 402, and the connecting rod 203 and the lifting lug 401 are detachably connected.

[0038] In this embodiment, the movement of the upper box 100, the middle box 200, and the lower box 300 all depends on the hanging lugs 400 provided on their edges. To increase the service life of the hanging lugs 400, a reinforcing lug 402 is also provided between the two lifting lugs 401 to share the pressure borne by the lifting lug 401, thereby increasing the service life of the hanging lugs 400; and the connecting rod 203 on the hanging lugs 400 is detachable, which can be achieved by respectively providing a plug and a bolt at both ends of the connecting rod 203. The relative connection and separation between the connecting rod 203 and the lifting lug 401 can be realized by inserting and pulling out the bolt.

[0039] Further preferably, a first reinforcing portion is provided between the two lifting lugs 401 and the reinforcing lug 402 in each hanging lug 400 on the lower box 300. The first reinforcing portion includes a first reinforcing plate 403, and the first reinforcing plate 403 is vertically arranged between the two lifting lugs 401 to increase the service life of the lifting lug 401 on the lower box 300.

[0040] Further preferably, a second reinforcing portion is provided between the two lifting lugs 401 in each hanging lug 400 on the middle box 200 and the middle box 200. The second reinforcing portion includes a second reinforcing plate 404, and the second reinforcing plate 404 is arranged between the outer wall of the lifting lug 401 and the outer edge of the middle box 200.

[0041] Further preferably, a plurality of bolt connection holes 405 are provided at the edges of the upper box 100, the middle box 200, and the lower box 300. A gap is provided between adjacent two bolt connection holes 405 in each edge, and the gap distance between adjacent two bolt connection holes 405 at the middle position is smaller than the gap distance between adjacent two bolt connection holes 405 on both sides.

[0042] In this embodiment, after the upper box 100, the middle box 200 and the lower box 300 are stacked in sequence, bolts are required to fix them to each other. Since the middle positions at the edges of the box body are subject to greater forces, the clearance distances of the bolt connection holes 405 at the middle positions of each edge are smaller and the density is higher, so as to bear more pressure.

[0043] It should be noted that in the present utility model, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and cannot be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. Terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0045] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art of the present utility model can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A casting sand box, characterized in that, Comprising: An upper box, on the upper surface of which a strengthening part is arranged. The strengthening part includes a plurality of transverse strengthening plates. The linear length of the transverse strengthening plates is equal to the transverse length of the upper box, and the plurality of transverse strengthening plates are parallel to each other. There is a gap between the two outermost transverse strengthening plates and the longitudinal edges of the upper box. A plurality of longitudinal long plates and longitudinal short plates are perpendicularly arranged between the transverse strengthening plates. The ends of the longitudinal long plates are flush with the longitudinal edges of the upper box. A reserved area is formed between the outermost transverse strengthening plate and some of the longitudinal long plates. A pouring gate is arranged on the upper box in the corresponding reserved area. A middle box; A lower box, and the upper box, the middle box and the lower box are stacked in sequence.

2. The foundry sand box according to claim 1, characterized in that, Stress dispersion angles are arranged at the ends of the transverse strengthening plates and the longitudinal strengthening plates.

3. A foundry sand box according to claim 1, characterized in that, A plurality of sand mold connectors are arranged on each inner wall surface of the middle box.

4. A casting sand box according to claim 3, characterized in that, The sand mold connector includes a fixing part and a connecting part. The connecting part is fixed to the inner wall of the middle box through the fixing part, and the connecting part is used to extend into the sand mold.

5. A foundry sand box according to claim 4, characterized in that, The connecting part includes a connecting rod, and the fixing part includes a plurality of fixing rods. The plurality of fixing rods are perpendicularly fixed to the inner wall of the middle box. The connecting rod is parallel to the inner wall, and the connecting rod is fixed to the plurality of fixing rods.

6. A foundry sand box according to claim 5, characterized in that, A gap is arranged between every two adjacent fixing rods. In each sand mold connector, the gap distance between the fixing rods in the middle position is smaller than the gap distance between the fixing rods on both sides.

7. A foundry sand box according to claim 1, characterized in that, A plurality of lifting lugs are arranged on the upper box, the middle box and the lower box. Each lifting lug includes two lifting ears, and a strengthening ear is arranged between the two lifting ears. Connecting holes are arranged between the lifting ears and the strengthening ear. A connecting rod passes through the connecting holes on the lifting ears and the strengthening ear, and the connecting rod is detachably connected to the lifting ears.

8. A foundry sand box according to claim 7, characterized in that, A first strengthening part is arranged between the two lifting ears and the strengthening ear in each lifting lug on the lower box.

9. A foundry sand box according to claim 7, characterized in that, A second strengthening part is arranged between the two lifting ears and the middle box in each lifting lug on the middle box.

10. A casting sand box according to claim 1, characterized in that, A plurality of bolt connection holes are arranged at the edges of the upper box, the middle box and the lower box. A gap is arranged between every two adjacent bolt connection holes on each edge, and the gap distance between the two adjacent bolt connection holes in the middle position is smaller than the gap distance between the two adjacent bolt connection holes on both sides.

Images