Valve housing casting mold

Abstract

The utility model discloses a valve housing foundry mould, including sand box, pattern and spacer ring, sand box includes upper sand box and lower sand box, and upper sand box and lower sand box can buckle, and spacer ring can be arranged in sand box, and the sand injection groove of accommodating casting sand is formed between sand box and spacer ring, pattern can be arranged in the sand injection groove, to cooperate casting sand and form the cavity, and pattern includes fixed part and a plurality of connecting parts, and fixed part is provided with modeling hole, and connecting part is detachably connected in the inner side wall of modeling hole, and a plurality of connecting parts are connected and arranged along the circumference of modeling hole, the valve housing foundry mould of the utility model can reduce the manufacturing cost of pattern, and can improve processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a valve shell casting mold. Background Technology

[0002] The valve body is an important component of a valve. It is mainly manufactured by sand casting. However, the various specifications of valve bodies mean that different patterns need to be set for different valve bodies, which increases the production cost of patterns. Moreover, the large size of the valve body not only leads to a large amount of casting sand, but also a long filling time, which affects the processing efficiency. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a valve body casting mold that can reduce the cost of pattern making and improve processing efficiency.

[0004] According to a first aspect of the present invention, a valve shell casting mold includes a sand box, a pattern, and a spacer ring; the sand box includes an upper sand box and a lower sand box, which can be fastened together; the spacer ring can be arranged in the sand box, and a sand injection groove for accommodating casting sand is formed between the sand box and the spacer ring; the pattern can be arranged in the sand injection groove to cooperate with the casting sand to form a cavity; the pattern includes a fixing part and a plurality of connecting parts; the fixing part is provided with a molding hole; the connecting parts are detachably connected to the inner wall of the molding hole; and the plurality of connecting parts are arranged circumferentially connected to the molding hole.

[0005] The valve shell casting mold according to the embodiment of this utility model has at least the following beneficial effects: the upper sand box and the lower sand box can be fastened together, and the sand box and the spacer ring form a sand injection groove. The pattern is arranged in the sand injection groove so that the casting sand can form a cavity with the same shape as the pattern, thereby realizing the processing and manufacturing of the casting. The fixing part is provided with a molding hole, and a connecting part is provided to be detachably connected to the inner wall of the molding hole. Multiple connecting parts can be connected and arranged along the circumference of the molding hole. Different connecting parts can be disassembled and replaced to form molding holes of different diameters, which facilitates flexible adjustment of the pattern size instead of replacing the entire pattern, effectively reducing the production and manufacturing cost. Moreover, by setting the spacer ring, the volume of the sand injection groove can be reduced, which can reduce the amount of casting sand used, shorten the processing time, and improve the processing efficiency.

[0006] According to some embodiments of the present invention, the fixing part is provided with a protruding locking block, the connecting part is provided with a locking groove, and the locking block can be locked in the locking groove.

[0007] According to some embodiments of the present invention, the connecting part has a connecting hole, a fastener passes through the connecting hole, and the fastener is threadedly connected to the fixing part.

[0008] According to some embodiments of the present invention, the fixing part is provided with a baffle, the baffle is arranged circumferentially along the shaped hole, and the connecting part can abut against the baffle.

[0009] According to some embodiments of the present invention, a support frame is fixedly connected to the upper end face of the spacer ring, and the support frame can abut against the upper end face of the sand box.

[0010] According to some embodiments of the present invention, the support frame is provided with a plurality of partition holes, which are arranged at intervals.

[0011] According to some embodiments of the present invention, the support frame is provided with multiple reinforcing plates, and the two ends of the reinforcing plates are respectively connected to opposite sides of the support frame.

[0012] According to some embodiments of the present invention, multiple reinforcing rods are connected between the spacer ring and the support frame, and the multiple reinforcing rods are arranged at intervals along the circumference of the spacer ring.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0015] Figure 1 This is a cross-sectional view of the valve shell casting mold according to an embodiment of the present utility model;

[0016] Figure 2 for Figure 1 Enlarged view of a portion at point A;

[0017] Figure 3 This is a schematic diagram of the shape of the valve shell casting mold according to an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the spacer ring in the valve body casting mold of this utility model embodiment.

[0019] Figure label:

[0020] Sand box 100, upper sand box 110, lower sand box 120, sand injection trough 130;

[0021] Pattern 200, fixing part 210, shaping hole 211, locking block 212, edge guard 213, connecting part 220, slot 221, connecting hole 222, fastener 223;

[0022] Spacer ring 300, support frame 310, partition hole 311, reinforcing plate 312, reinforcing rod 313. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0027] Understandably, referring to Figure 1 and Figure 2 The valve shell casting mold of this utility model includes a sand box 100, a pattern 200, and a spacer ring 300. The sand box 100 includes an upper sand box 110 and a lower sand box 120, which can be fastened together. The spacer ring 300 can be arranged in the sand box 100, and a sand injection groove 130 for accommodating casting sand is formed between the sand box 100 and the spacer ring 300. The pattern 200 can be arranged in the sand injection groove 130 to cooperate with the casting sand to form a cavity. The pattern 200 includes a fixing part 210 and multiple connecting parts 220. The fixing part 210 is provided with a molding hole 211. The connecting parts 220 are detachably connected to the inner side wall of the molding hole 211, and the multiple connecting parts 220 are connected and arranged circumferentially along the molding hole 211.

[0028] The upper sand box 110 and the lower sand box 120 can be fastened together. The sand box 100 and the spacer ring 300 form a sand injection groove 130. The pattern 200 is arranged in the sand injection groove 130 so that the casting sand can form a cavity with the same shape as the pattern 200, thereby realizing the processing and manufacturing of the casting. The fixing part 210 is provided with a molding hole 211. It is detachably connected to the inner wall of the molding hole 211 by a connecting part 220. Multiple connecting parts 220 can be connected and arranged along the circumference of the molding hole 211. Different connecting parts 220 can be disassembled and replaced to form molding holes 211 of different diameters. It is convenient to flexibly adjust the size of the pattern 200 instead of replacing the entire pattern 200, effectively reducing the production and manufacturing cost. Moreover, by setting the spacer ring 300, the volume of the sand injection groove 130 can be reduced, the amount of casting sand used can be reduced, the processing time can be shortened, and the processing efficiency can be improved.

[0029] It should be noted that, due to the large structural dimensions of the valve body and the fact that the structural dimensions of the pattern 200 are the same as those of the valve body, the manufacturing cost of the pattern 200 is relatively high. By providing a connecting part 220 that can be detachably connected to the inner wall of the molding hole 211, different connecting parts 220 can be replaced to form molding holes 211 of different diameters, thereby enabling the production of valve bodies of various sizes and specifications. The fixing part 210 can be reused, eliminating the need to remake the entire pattern 200, which can effectively reduce production and manufacturing costs.

[0030] Furthermore, since the valve body has a through hole, the pattern 200 also has a corresponding through hole. Existing casting methods require filling this through hole with casting sand to form the valve body's through hole. However, the through hole is relatively large, resulting in a large amount of casting sand consumption and a long filling time, thus affecting production efficiency. By arranging the spacer ring 300 in the sand box 100 and placing the pattern 200 between the sand box 100 and the spacer ring 300, the pattern 200 can cooperate with the casting sand to form a cavity in the sand injection groove 130. This avoids filling the entire through hole in the pattern 200 with casting sand, reducing the amount of casting sand used and shortening the filling time, thereby improving production efficiency.

[0031] After the cavity is formed, the spacer ring 300 is removed from the sand box 100, and then the molten metal is poured into the cavity to solidify and form a valve body with the same shape as the cavity.

[0032] Understandably, referring to Figure 3The fixing part 210 has a protruding locking block 212, and the connecting part 220 has a locking groove 221, in which the locking block 212 can be engaged. By providing the locking block 212 protruding from the fixing part 210 and the locking groove 221 in the connecting part 220, the locking block 212 can be engaged in the locking groove 221. This not only ensures that the connecting part 220 is stably attached to the fixing part 210, but also results in a simple structure, convenient operation, and easy quick assembly and disassembly of the connecting part 220. When it is necessary to produce valve bodies of different sizes and specifications, the connecting part 220 can be removed from the fixing part 210 and replaced with a connecting part 220 of the corresponding size without complicated tools and operating procedures, greatly improving replacement efficiency and further increasing production efficiency.

[0033] It should be noted that the slot 221 can be a dovetail slot, a rectangular slot, etc., and the shape of the card block 212 matches the slot 221. These will not be described in detail here.

[0034] Specifically, refer to Figure 1 and Figure 2 The connecting part 220 has a connecting hole 222 through which a fastener 223 passes. The fastener 223 is threadedly connected to the fixing part 210. By providing a connecting hole 222 in the connecting part 220 and threading the fastener 223 to the fixing part 210, the stability and reliability of the connection between the connecting part 220 and the fixing part 210 can be enhanced. The fastener 223 can stabilize the fixing part 210 and the connecting part 220 together, effectively preventing relative displacement or loosening between the connecting part 220 and the fixing part 210, ensuring that the overall structure of the pattern 200 remains stable during the casting process, thereby ensuring the accurate shape of the cavity and thus ensuring the casting quality of the valve body.

[0035] During the filling of casting sand, the pattern 200 is compressed by the casting sand. The fastener 223 fixes the connecting part 220 to the fixing part 210 to prevent the position of the connecting part 220 from shifting, thereby improving the structural stability of the pattern 200.

[0036] It should be noted that the number of connecting holes 222 and fasteners 223 is set to multiple. The number of fasteners 223 can increase the number of connection points with the fixing part 210, thereby improving the connection strength between the fixing part 210 and the connecting part 220, reducing the possibility of misalignment or loosening, and improving reliability.

[0037] Understandably, referring to Figure 3The fixing part 210 is provided with a retaining edge 213, which is arranged circumferentially along the molding hole 211. The connecting part 220 can abut against the retaining edge 213. By providing the retaining edge 213 to the fixing part 210, the connecting part 220 can be positioned on the fixing part 210, which improves the positional accuracy of the connecting part 220 on the fixing part 210 and reduces the possibility of the connecting part 220 detaching from the fixing part 210, thereby improving the reliability of the pattern 200.

[0038] Among them, the baffle 213 is arranged circumferentially along the molding hole 211, so that each connecting part 220 can abut against the baffle 213, thereby improving the installation stability of the connecting part 220 and improving the reliability of the pattern 200.

[0039] Understandably, referring to Figure 1 and Figure 4 A support frame 310 is fixedly connected to the upper end face of the spacer ring 300, and the support frame 310 can abut against the upper end face of the sand box 100. The support frame 310 is fixedly connected to the upper end face of the spacer ring 300. By arranging the support frame 310 on the sand box 100, the spacer ring 300 can be inserted into the sand box 100, thereby enabling the spacer ring 300 to be quickly positioned and improving the casting efficiency.

[0040] In addition, when the casting sand is being filled, the spacer 300 is easily buried by the casting sand. By setting the support frame 310, the spacer 300 can be easily removed, which can improve the convenience of use and improve the casting efficiency.

[0041] Specifically, refer to Figure 1 and Figure 4 The support frame 310 is provided with multiple partition holes 311, which are arranged at intervals. The multiple partition holes 311 are arranged at intervals on the support frame 310 so that when the casting sand is filled into the sand injection tank 130, the casting sand can be dispersed through the multiple partition holes 311, so that the casting sand is more evenly distributed in the sand injection tank 130, avoiding local accumulation or voids, which helps to form a more uniform and dense cavity, thereby improving the casting quality of the valve body.

[0042] The equal spacing between the multiple partition holes 311 allows the casting sand to be more evenly dispersed into the sand injection groove 130, thereby reducing the flattening time and improving the filling efficiency of the casting sand.

[0043] Specifically, refer to Figure 4The support frame 310 is provided with multiple reinforcing plates 312, with each end of the reinforcing plate 312 connected to opposite sides of the support frame 310. The connection of the two ends of the reinforcing plates 312 to opposite sides of the support frame 310 enhances the structural strength of the support frame 310, reduces the possibility of bending deformation, and thus stabilizes the position of the spacer ring 300, reducing the possibility of spacer ring 300 positional displacement and contributing to improved casting quality.

[0044] It should be noted that since the casting sand is fed from above the support frame 310, the support frame 310 needs to withstand the impact force of the casting sand. By setting the reinforcing plate 312, the structural strength of the support frame 310 can be improved, the possibility of bending deformation of the support frame 310 can be reduced, and the reliability can be improved.

[0045] Specifically, refer to Figure 1 Multiple reinforcing rods 313 connect the spacer ring 300 to the support frame 310, and these reinforcing rods 313 are arranged at intervals along the circumference of the spacer ring 300. One end of each reinforcing rod 313 is fixedly connected to the spacer ring 300, and the other end is fixedly connected to the support frame 310. This enhances the connection strength between the spacer ring 300 and the support frame 310 and the stability of the overall structure. It also allows the force borne by the spacer ring 300 to be more evenly distributed onto the support frame 310 during casting sand filling, preventing excessive local stress that could cause the spacer ring 300 to loosen, extending its service life, and improving reliability.

[0046] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A valve housing casting mold characterized by, Includes sandbox, pattern, and spacers; The sand box includes an upper sand box and a lower sand box, which can be fastened together. The spacer ring can be arranged in the sand box, and a sand injection groove for accommodating casting sand is formed between the sand box and the spacer ring. The pattern can be arranged in the sand injection groove to cooperate with the casting sand to form a cavity. The pattern includes a fixing part and multiple connecting parts. The fixing part is provided with a molding hole. The connecting parts are detachably connected to the inner wall of the molding hole, and the multiple connecting parts are arranged circumferentially connected to the molding hole.

2. The valve shell casting mold according to claim 1, characterized in that, The fixing part has a protruding locking block, and the connecting part has a locking groove, and the locking block can be locked in the locking groove.

3. The valve shell casting mold according to claim 1 or 2, characterized in that, The connecting part has a connecting hole, and a fastener passes through the connecting hole. The fastener and the fixing part are connected by a thread.

4. The valve body casting mold according to claim 1, characterized in that, The fixing part is provided with a baffle, which is arranged around the circumference of the shaping hole, and the connecting part can abut against the baffle.

5. The valve body casting mold according to claim 1, characterized in that, A support frame is fixedly connected to the upper end face of the spacer ring, and the support frame can abut against the upper end face of the sand box.

6. The valve body casting mold according to claim 5, characterized in that, The support frame is provided with multiple partition holes, which are arranged at intervals.

7. The valve housing casting mold according to claim 5, characterized in that, The support frame is provided with multiple reinforcing plates, and the two ends of the reinforcing plates are respectively connected to the opposite sides of the support frame.

8. The valve body casting mold according to claim 5, characterized in that, Multiple reinforcing rods are connected between the spacer ring and the support frame, and the multiple reinforcing rods are arranged at intervals along the circumference of the spacer ring.

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