Rapid demolding device for precision casting of stainless steel pump body

Abstract

The utility model discloses a stainless steel pump body precision casting rapid demoulding device which comprises a material collecting bin and a material placing bin, the bottom of the material collecting bin is symmetrically connected with guide cylinders, a collecting box is placed below each guide cylinder, a net fence is installed at the inner bottom of the material placing bin, and the material placing bin and the material collecting bin are connected through a plurality of groups of guide rods and springs. One end of the guide rod is fixed to the edge of the storage bin and sleeved with a spring, the other end of the guide rod penetrates out of the lower surface of the collecting bin, and a driving structure for controlling the guide rod to ascend and descend in a reciprocating mode is further arranged on the lower edge of the collecting bin. During demolding and shelling, a plurality of stainless steel pump body castings can be placed in the storage bin at the same time, then the storage bin is controlled by the driving structure to vibrate up and down relative to the material collecting bin so as to shake off mold shells of the stainless steel pump body castings, efficiency is higher, meanwhile, mold shell fragments are conveyed into the collecting box through the guide cylinder to be collected, and the mold shell fragments are prevented from being damaged. Unified collection and cleaning are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pump body casting, in particular to a stainless steel pump body precision casting rapid demoulding device. Background Art

[0002] At present, the lost foam casting method is often used in the casting of stainless steel pump bodies. The operation method of lost foam casting is: the foam model with similar size and shape to the stainless steel pump body is bonded and assembled into a model cluster, and after being coated with refractory paint and dried, it is buried in dry quartz sand for vibration molding, and poured under negative pressure to gasify the model, and the liquid metal occupies the position of the model, and solidifies and cools to form a stainless steel pump body.

[0003] However, when the stainless steel pump body formed by this casting method is demolded, the surface of the casting is easily adhered to the mold shell. The current common way to deal with the sand shell layer is that the operator uses a hammer to knock the surface of the casting one by one to shake off the mold shell. This method is not only time-consuming and labor-intensive, but the peeled-off mold shell fragments will also be directly scattered on the ground around the casting, and the operator needs to spend more time and energy to clean it up, which affects the efficiency of demolding and shelling.

[0004] Therefore, we propose a stainless steel pump body precision casting rapid demoulding device to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a stainless steel pump body precision casting rapid demoulding device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A stainless steel pump body precision casting rapid demoulding device comprises a material collection bin and a storage bin, the bottom of the material collection bin is symmetrically connected with guide cylinders, a collection box is placed under each guide cylinder, a mesh fence is installed at the inner bottom of the storage bin, and the storage bin and the material collection bin are connected by a plurality of guide rods and springs, one end of the guide rod is fixed to the edge of the storage bin and sleeved with the spring, and the other end of the guide rod passes through the lower surface of the material collection bin, and a reciprocating lifting and lowering driving structure for controlling the guide rod is also provided at the lower edge of the material collection bin;

[0008] The driving structure includes an eccentric wheel and a motor. The eccentric wheel is rotatably mounted on the lower edge of the aggregate bin through a mounting plate, and the motor drives the eccentric wheel to rotate. A roller is rotatably mounted on the lower end of the guide rod, and the roller fits tightly with the eccentric wheel.

[0009] In a further embodiment, the drive structure is symmetrically arranged in two groups with respect to the storage bin.

[0010] In a further embodiment, a concave annular groove is provided in the middle of the roller, and the eccentric wheel is embedded in the concave annular groove.

[0011] In a further embodiment, an annular convex edge 1 is provided on the inner wall of the aggregate bin, an annular convex edge 2 is provided on the inner wall of the storage bin, and the convex edge is set on the outer side of the convex edge 2.

[0012] In a further embodiment, a sliding cover is slidably mounted on the bottom port of the guide cylinder.

[0013] In a further embodiment, the middle connection between the two guide tubes is rounded to form an arc-shaped top.

[0014] In a further embodiment, the fence is composed of a plurality of ring rods having different diameters and arranged in concentric circles, and a plurality of straight rods evenly arranged along the circumference of the ring rods.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model is arranged that when demolding and shelling, multiple stainless steel pump body castings can be placed in the storage bin at the same time, and then the storage bin is controlled to vibrate up and down relative to the collecting bin through the driving structure to shake off the mold shells of the stainless steel pump body castings, and multiple stainless steel pump body castings can be operated to demold and shell at the same time, which is more efficient. At the same time, the mold shell fragments are transported to the collection box through the guide tube for collection, which is convenient for unified collection and cleaning, and saves the trouble of requiring operators to spend extra time and energy on cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model viewed from the right front side;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model when viewed from the right front side;

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0020] Figure 4 It is a semi-sectioned three-dimensional structural schematic diagram of the utility model.

[0021] In the figure: 1. Aggregate bin; 11. Convex edge 1; 2. Storage bin; 21. Convex edge 2; 3. Guide cylinder; 31. Sliding cover; 32. Arc-shaped top; 4. Collecting box; 5. Net fence; 51. Ring rod; 52. Straight rod; 6. Guide rod; 7. Spring; 8. Roller; 81. Concave ring groove; 9. Eccentric wheel; 10. Motor. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood by specific circumstances.

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-3, a stainless steel pump body precision casting rapid demoulding device, including a collection bin 1 and a storage bin 2, the bottom of the collection bin 1 is symmetrically connected with a guide cylinder 3, the top ports of the two guide cylinders 3 are connected to the bottom port of the collection bin 1, and the two guide cylinders 3 are respectively inclined downward on both sides, and a collecting box 4 is placed under each guide cylinder 3, and the collecting box 4 is used to collect mold shell fragments, and a mesh fence 5 is installed at the inner bottom of the storage bin 2. The mesh fence 5 is hollowed out to support the casting and facilitate the falling of the shattered mold shell. A plurality of springs 7 are evenly arranged between the storage bin 2 and the outer edge of the collection bin 1, and the two ends of the spring 7 are respectively fixed to the storage bin 2 and the collection bin 1, and a plurality of guide rods 6 corresponding to the springs 7 are evenly distributed on the lower edge of the storage bin 2. The guide rod 6 runs through the spring 7, and the top of the guide rod 6 is fixed to the storage bin 2, and the lower end of the guide rod 6 runs through the edge of the collection bin 1 and passes through its lower surface, the collection bin 1 The lower edge of the guide rod 6 is also provided with a reciprocating lifting driving structure, and the driving structure includes an eccentric wheel 9 and a motor 10, wherein a group of mounting plates are fixed to the lower edge of the collecting bin 1, and the eccentric wheel 9 is rotatably installed between the bottom ends of the group of mounting plates, and the motor 10 is fixed on the outer wall of the group of mounting plates, and the output shaft of the motor 10 is connected to the eccentric wheel 9 to drive the eccentric wheel 9 to rotate, and a roller 8 is rotatably installed at the lower end of the guide rod 6, and the vertical center line of the roller 8 coincides with the vertical center line of the rotating shaft of the eccentric wheel 9, and the roller 8 fits tightly with the eccentric wheel 9. Therefore, when the eccentric wheel 9 rotates, the roller 8 can be squeezed, thereby driving the guide rod 6 to reciprocate and lift, controlling the storage bin 2 to vibrate up and down relative to the collecting bin 1, so as to facilitate the shaking off of the mold shell on the surface of the casting in the storage bin 2, and the broken mold shell falls through the mesh fence 5, and is then transported to the collection box 4 through the guide cylinder 3.

[0026] See also Figure 3 In order to improve the driving stability of the driving structure, two groups of driving structures are symmetrically arranged about the storage bin 2. The two groups of driving structures start working at the same time, so as to drive the storage bin 2 to rise and fall from both sides at the same time, and the stability is higher. In addition, a concave annular groove 81 is provided in the middle of the roller 8, and the eccentric wheel 9 is embedded in the concave annular groove 81. The two end edges of the roller 8 limit the eccentric wheel 9, which effectively prevents the eccentric wheel 9 from being offset and misaligned when it is squeezed and contacted with the roller 8.

[0027] See also Figure 4 Considering that when the storage bin 2 vibrates up and down relative to the material collecting bin 1, a gap is easily generated between the two, which may cause the shell fragments to leak out, in order to ensure the collection effect of the shell fragments, an annular convex edge 11 is provided on the inner wall of the material collecting bin 1, and an annular convex edge 21 is provided on the inner wall of the storage bin 2, and the convex edge 11 is sleeved on the outside of the convex edge 21, so that when the storage bin 2 vibrates up and down relative to the material collecting bin 1, the convex edge 11 and the convex edge 21 are always mutually sleeved and staggered, so that the shell fragments will not leak out from there.

[0028] See also Figure 4Furthermore, in order to ensure sufficient discharge of the mold shell, the net fence 5 is composed of a plurality of ring rods 51 and a plurality of straight rods 52, wherein the diameters of the ring rods 51 are different and they are arranged concentrically with the storage bin 2 in the storage bin 2, while the straight rods 52 are equivalent to the radius of the ring rods 51 and are arranged interlaced between the ring rods 51, and the axis lines of the straight rods 52 are extended through the center points of the ring rods 51. Since the straight rods 52 and the ring rods 51 are both cylindrical rods, the broken mold shells are not easy to accumulate on the cylindrical rods and can fall smoothly. At the same time, the middle connection of the two guide cylinders 3 is provided with a rounded corner to form an arc top 32, so that the broken mold shells are not easy to accumulate on the arc top 32, which is convenient for sufficient discharge.

[0029] See also Figure 4 , considering that in actual use, when the collection box 4 is full, the collection box 4 needs to be replaced. In order to ensure that the debris in the guide cylinder 3 will not fall to the ground during the gap of replacing the collection box 4, a sliding cover 31 is slidably installed on the bottom port of the guide cylinder 3. The sliding cover 31 can slide left and right relative to the bottom end of the guide cylinder 3, thereby facilitating the closing or opening of the bottom port of the guide cylinder 3. When replacing the collection box 4, the bottom port of the guide cylinder 3 is closed, so that the debris accumulates inside the guide cylinder 3 and does not fall to pollute the ground.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A stainless steel pump body precision casting rapid demoulding device, comprising a material collection bin (1) and a storage bin (2), characterized in that: The bottom of the material collecting bin (1) is symmetrically connected to guide cylinders (3), and a collecting box (4) is placed below each guide cylinder (3). A net fence (5) is installed at the inner bottom of the storage bin (2), and the storage bin (2) and the material collecting bin (1) are connected via a plurality of groups of guide rods (6) and springs (7). One end of the guide rod (6) is fixed to the edge of the storage bin (2) and sleeved with the spring (7), and the other end of the guide rod (6) passes through the lower surface of the material collecting bin (1). The lower edge of the material collecting bin (1) is also provided with a reciprocating lifting and lowering driving structure for controlling the guide rod (6); The driving structure comprises an eccentric wheel (9) and a motor (10); the eccentric wheel (9) is rotatably mounted on the lower edge of the material collecting bin (1) via a mounting plate, and the motor (10) drives the eccentric wheel (9) to rotate; a roller (8) is rotatably mounted on the lower end of the guide rod (6), and the roller (8) is tightly fitted to the eccentric wheel (9).

2. The stainless steel pump body precision casting rapid demoulding device according to claim 1 is characterized by: The drive structure is symmetrically arranged in two groups with respect to the storage bin (2).

3. The stainless steel pump body precision casting rapid demoulding device according to claim 1 is characterized in that: A concave annular groove (81) is provided in the middle of the roller (8), and the eccentric wheel (9) is embedded in the concave annular groove (81).

4. The stainless steel pump body precision casting rapid demoulding device according to claim 1 is characterized by: An annular convex edge 1 (11) is provided on the inner wall of the material collecting bin (1), and an annular convex edge 2 (21) is provided on the inner wall of the storage bin (2), and the convex edge 1 (11) is sleeved on the outer side of the convex edge 2 (21).

5. The stainless steel pump body precision casting rapid demoulding device according to claim 1 is characterized in that: A sliding cover (31) is slidably mounted on the bottom end of the guide cylinder (3).

6. The stainless steel pump body precision casting rapid demoulding device according to claim 1 is characterized by: The middle connection point of the two guide cylinders (3) is rounded to form an arc-shaped top (32).

7. The stainless steel pump body precision casting rapid demoulding device according to claim 1 is characterized by: The net fence (5) is composed of a plurality of ring rods (51) having different diameters and arranged in concentric circles, and a plurality of straight rods (52) evenly arranged along the circumference of the ring rods (51).

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