Casting mold and casting method

Abstract

The invention discloses a casting mold and a casting method, and relates to the technical field of casting. The casting mold comprises an outer core, an inner core and a supporting assembly. An accommodating cavity is formed in the outer core; the inner core is arranged in the accommodating cavity, and a casting cavity is formed between the outer surface of the inner core and the inner side wall of the accommodating cavity; the embedded pipe is arranged in the casting cavity; the supporting assembly is arranged on the outer core; the supporting assembly comprises a fixing base and a supporting piece which are connected with each other. The fixed seat is fixed on the outer core; the supporting piece is provided with a limiting groove; the embedded pipe is arranged in the limiting groove, and a gap is formed between the outer surface of the embedded pipe and the inner side wall of the limiting groove. The casting mold is used for providing supporting and positioning for the embedded pipe in the casting process, and the quality of a cast and formed product is improved.

Description

Technical Field

[0001] The invention relates to the technical field of casting, and in particular to a casting mold and a casting method. Background Art

[0002] In the current semiconductor industry, in order to enable each component of the equipment to have a heat exchange function, the structure of many components is set to be hollow and with a pre-buried pipe structure. The structure of this pre-buried pipe is complex, its material is different from the main material of the component, and it must be embedded inside the component, so it is usually made by sand casting. During the casting process, many sections of the pre-buried pipe are in a suspended state, and the thermal deformation is complicated, and a core support is required to control its deformation.

[0003] However, there are various types of core supports available at present. Some use steel wires to fix embedded pipes, which is cumbersome to operate, and the cast products have many seams in the inner cavity, which is not effective in fixing the embedded pipes. Others use geometric structural accessories found on site as core supports, which has poor consistency and is not suitable for mass production. Summary of the invention

[0004] The object of the present invention is to provide a casting mold and a casting method, which are used to provide support and positioning for the embedded pipe during the casting process and improve the quality of the cast product.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] On the one hand, the present invention provides a casting mold, which includes: an outer core, which is provided with a accommodating cavity inside; an inner core, which is arranged in the accommodating cavity, and a casting cavity is formed between the outer surface of the inner core and the inner side wall of the accommodating cavity; an embedded pipe is arranged in the casting cavity; a support assembly, which is arranged in the outer core; the support assembly includes a fixed seat and a support member connected to each other; the fixed seat is fixed to the outer core; the support member is provided with a limiting groove; the embedded pipe is arranged in the limiting groove, and there is a gap between the outer surface of the embedded pipe and the inner side wall of the limiting groove.

[0007] In some embodiments, the fixing seat is arranged on the inner wall of the accommodating cavity, and the support member is located in the casting cavity; the fixing seat is provided with a limiting portion, and the inner wall of the accommodating cavity is provided with a limiting groove adapted to the limiting portion, and the limiting portion cooperates with the limiting groove to realize circumferential limitation of the support assembly.

[0008] In some embodiments, the end of the support member connected to the fixing seat is the connecting end, and the end with a limiting groove is the supporting end. In the second direction, the cross-sectional area of ​​the connecting end is larger than the cross-sectional area of ​​the supporting end; the second direction is set at an angle to the first direction.

[0009] In some embodiments, the support assembly further includes an extraction member; the extraction member is fixedly connected to a side of the fixing seat facing away from the support member, and the extraction member and the outer core are detachably connected.

[0010] In some embodiments, the outer core is provided with a mounting hole connecting the casting cavity with the outside world, the mounting holes include a first hole and a second hole connected along a first direction, the inner diameter of the first hole is larger than the inner diameter of the second hole; the fixing seat is arranged in the first hole, and a connecting hole is arranged on the side of the fixing seat away from the support member, the extraction member is passed through the second hole and is fixedly connected to the fixing seat through the connecting hole; the extraction member is provided with an external thread at one end away from the fixing seat, and the extraction member is fixed to the outer core by a fastener with an internal thread.

[0011] In some embodiments, the outer core is provided with a riser and a runner; one end of the runner is connected to the outside through the riser, and the other end is connected to the casting cavity.

[0012] On the other hand, the present invention provides a casting method, using the casting mold in any of the above embodiments, the casting method includes: S100, installing the fixing seat on the outer core, and the support member is located in the accommodating cavity; S200, placing the inner core and the embedded tube into the accommodating cavity of the outer core, forming the casting cavity between the inner core and the outer core, and the embedded tube is located in the casting cavity and is arranged opposite to the limiting groove on the support member; S300, performing casting molding.

[0013] In some embodiments, the support assembly further includes a puller and a fastener, and the step S100 includes: S110, installing the puller and the fixing seat on the outer core, with one end of the puller extending out of the outer core; S120, installing the fastener on the puller from the outside of the outer core to fix the puller and the fixing seat to the outer core.

[0014] In some embodiments, after step S300, the casting method further includes: S400, taking out the mold; step S400 includes: S410, removing the outer core to expose the support assembly, the inner core and the cast mold; S420, separating the support assembly from the mold by the extraction member; S430, removing the inner core to obtain the mold.

[0015] Beneficial effects of the present invention:

[0016] On the one hand, the present invention provides a casting mold, which comprises an outer core having an accommodating cavity inside, and an inner core is arranged in the accommodating cavity, so that a casting cavity is formed between the outer surface of the inner core and the inner wall of the accommodating cavity, and a pre-buried pipe is arranged in the casting cavity, so that the body of the cast product is embedded with the pre-buried pipe, and heat exchange occurs between the cooling medium in the pre-buried pipe and the product body, thereby enhancing the heat dissipation effect of the product. In addition, by arranging a support assembly including an interconnected fixing seat and a support member on the outer core, and arranging a limiting groove on the support member, the embedded pipe is arranged in the limiting groove, and a gap is provided between the outer surface of the embedded pipe and the inner wall of the limiting groove, so that during the casting and molding process of the product, the limiting groove of the support member can limit and fix the embedded pipe, avoid the embedded pipe from being twisted or displaced due to thermal deformation, and then cause the setting position of the embedded pipe in the product body to change, thereby ensuring the quality of the cast product; at the same time, the gap between the limiting groove and the embedded pipe can also reduce the probability of hard contact between the embedded pipe and the support member, resulting in damage to the embedded pipe or the product, to a certain extent, further ensuring the quality of the cast product. In addition, the support assembly in the above-mentioned casting mold can play a chilling role during the casting and molding process of the product, which is beneficial to product shrinkage compensation and improving the mechanical properties of the product.

[0017] On the other hand, the present invention provides a casting method, by adopting the casting mold in any of the above embodiments, so that during the casting process, the embedded pipe can be supported by the support assembly provided on the outer core of the casting mold, which can avoid deformation or displacement of the embedded pipe body, thereby avoiding changes in the setting position of the embedded pipe in the product body, and ensuring the quality of the cast product. In addition, the casting method can streamline and standardize the casting process, ensure the consistency and purity of the cast product, and reduce unnecessary operating steps, thereby improving casting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of a casting mold provided by a specific embodiment of the present invention;

[0019] Figure 2 yes Figure 1 An enlarged structural diagram of region A in the structure shown;

[0020] Figure 3 It is a structural diagram of a support assembly and a pre-buried pipe provided by a specific embodiment of the present invention;

[0021] Figure 4 It is a bottom view structural diagram of a support assembly provided by a specific embodiment of the present invention;

[0022] Figure 5 yes Figure 4 The structure shown is a cross-sectional view along the BB direction;

[0023] Figure 6 is a side structural diagram of a support assembly provided by a specific embodiment of the present invention;

[0024] Figure 7 It is a structural diagram of a pre-buried pipe provided by a specific embodiment of the present invention;

[0025] Figure 8 is a structural diagram of an inner core provided by a specific embodiment of the present invention;

[0026] Fig. 9 It is a flow chart of a casting method provided by a specific embodiment of the present invention;

[0027] Fig.10 It is a flow chart of installing a fixing seat on an outer core provided by a specific embodiment of the present invention;

[0028] Fig.11 It is a flow chart of removing a casting mold provided by a specific embodiment of the present invention.

[0029] In the figure:

[0030] 1, inner core; 2, outer core; 21, mounting hole; 211, first hole; 212, second hole; 22, riser; 23, runner; 231, sprue; 232, runner; 233, endocastor; 24, first outer core; 25, second outer core; 3, casting cavity; 4, supporting assembly; 41, fixing seat; 411, limiting part; 412, connecting hole; 42, supporting member; 421, limiting groove; 43, extraction member; 44, fastener; 5, embedded pipe;

[0031] X1, first direction; X2, second direction. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly stipulated and limited, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them.

[0035] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0036] like Figures 1 to 8 As shown, this embodiment provides a casting mold, which includes: an outer core 2, an inner core 1 and a supporting assembly 4.

[0037] like Figure 1 As shown, the outer core 2 is, for example, a rectangular block structure, and a receiving cavity is provided inside the outer core 2. It is not difficult to understand that the shape and size of the receiving cavity are related to the shape and size of the casting mold. In other words, when casting different products, the shape and size of the receiving cavity need to be adaptively changed according to the product, so the specific structure of the receiving cavity is not described too much here. In addition, in order to facilitate the processing and manufacturing of the outer core 2, the outer core 2 can also be set as a split structure. Exemplarily, the outer core 2 includes a first outer core 24 and a second outer core 25, and a receiving groove body is respectively provided on the first outer core 24 and the second outer core 25. The side of the first outer core 24 provided with the receiving groove body and the side of the second outer core 25 provided with the receiving groove body are buckled, so that a complete outer core 2 can be formed, and the two receiving groove bodies can be combined to form a complete receiving cavity. The outer core 2 can be formed by mold sand filling and curing, or it can be formed by CNC material reduction manufacturing, or it can be formed by 3D printing manufacturing.

[0038] Combination Figure 1 , Figure 2 , Figure 7 , Figure 8As shown, the inner core 1 is arranged in the accommodating cavity. The specific shape and size of the inner core 1 are also related to the shape and size of the casting mold. The specific structure of the inner core 1 is not described in detail here. A casting cavity 3 is formed between the outer surface of the inner core 1 and the inner side wall of the accommodating cavity, and the embedded pipe 5 is arranged in the casting cavity 3. The role of the embedded pipe 5 here is: during the casting and molding process of the product, the embedded pipe 5 can be cast into the product body, so that the cooling medium (such as coolant or cooling gas) in the embedded pipe 5 can be used to exchange heat with the product body, thereby enhancing the heat dissipation effect of the product body. The embedded tube 5 can be arranged in the casting cavity 3 between the inner core 1 and the outer core 2 after the inner core 1 is arranged in the accommodating cavity; it can also be embedded in the outer surface of the inner core 1 during the manufacturing process of the inner core 1. For example, before making the inner core 1, the embedded tube 5 is first placed in the core box of the inner core 1 (that is, the mold used to make the inner core 1), and then the inner core 1 is made by a sand shooting process (that is, using a sand shooting machine to shoot core sand into the cavity of the core box, and relying on the kinetic energy obtained by the core sand and the pressure difference formed between the sand layers in the core box to make the core sand compacted in the core box). Through the above operation, part of the embedded tube 5 can be embedded in the outer surface of the inner core 1, and the rest of the part is exposed. In this way, when the product is cast, the casting liquid introduced into the casting cavity 3 contacts the "exposed part" of the embedded tube 5 that was originally in a bare state. After the casting liquid solidifies, the original "exposed part" of the embedded tube 5 is embedded in the outer surface of the casting, thereby realizing the casting of the product with the embedded tube 5.

[0039] Combination Figure 1 , Figure 2 As shown, the support assembly 4 is arranged on the outer core 2, and the support assembly 4 includes a fixing seat 41 and a support member 42 connected to each other, and the connection method of the two is, for example, welding or bolt connection. The fixing seat 41 is fixed to the outer core 2, so that the entire support assembly 4 can be fixed. The fixing seat 41 is fixed to the outer core 2, for example, by threaded connection or by other fixing members. The fixing method here will be described in detail below. The support member 42 is provided with a limiting groove 421, and the limiting groove 421 is, for example, a "U"-shaped groove or a "V"-shaped groove or a semicircular groove. The embedded pipe 5 is arranged in the limiting groove 421, and there is a gap between the outer surface of the embedded pipe 5 and the inner side wall of the limiting groove 421. In other words, when the embedded pipe 5 is arranged inside the limiting groove 421, the surface of the embedded pipe 5 does not directly produce hard contact with the groove wall of the limiting groove 421.

[0040] Therefore, a casting mold provided in this embodiment is provided, by providing an outer core 2 with an accommodating cavity inside, and an inner core 1 is provided in the accommodating cavity, so that a casting cavity 3 is formed between the outer surface of the inner core 1 and the inner wall of the accommodating cavity, and at the same time, an embedded pipe 5 is provided in the casting cavity 3, so that the embedded pipe 5 is embedded in the body of the cast product, and heat exchange occurs between the cooling medium in the embedded pipe 5 and the product body, thereby enhancing the heat dissipation effect of the product body. In addition, by arranging a support assembly 4 including a fixing seat 41 and a support member 42 connected to each other on the outer core 2, and arranging a limiting groove 421 on the support member 42, the embedded pipe 5 is arranged in the limiting groove 421, and a gap is provided between the outer surface of the embedded pipe 5 and the inner side wall of the limiting groove 421, so that during the casting process of the product, the limiting groove 421 of the support member 42 can limit and fix the embedded pipe 5, avoid the embedded pipe 5 from being twisted or displaced due to thermal deformation, resulting in a change in the setting position of the embedded pipe 5 in the product body, and ensure the quality of the cast product; at the same time, the gap between the limiting groove 421 and the embedded pipe 5 can also reduce the probability of hard contact between the embedded pipe 5 and the support member 42, resulting in damage to the embedded pipe 5 or the product, to a certain extent, and further ensure the quality of the cast product. In addition, the support assembly 4 in the above-mentioned casting mold can play a chilling role during the casting process of the product, which is beneficial to product shrinkage compensation and improving the mechanical properties of the product.

[0041] In some embodiments, in combination Figures 3 to 6As shown, the fixing seat 41 and the support member 42 are connected along the first direction X1, and the first direction X1 here is parallel to the axis of the fixing seat 41 and the support member 42. The fixing seat 41 is, for example, a cylindrical block structure, and the support member 42 is, for example, a cylindrical rod structure. The cross-sectional area of ​​the fixing seat 41 along the second direction X2 is greater than the cross-sectional area of ​​the support member 42 along the second direction X2. Here, the second direction X2 is set at an angle with the first direction X1, and the angle is, for example, 90°. In other words, the diameter of the fixing seat 41 is greater than the diameter of the support member 42. Through the above arrangement, when the fixing seat 41 is fixed to the outer core 2, its contact area with the outer core 2 is increased, so that the fixing seat 41 and the outer core 2 can be fixed more firmly, and the fixing seat 41 can be prevented from tilting. At the same time, it can facilitate the positioning between the embedded pipe 5 and the limiting groove 421 on the support member 42, and ensure the limiting and fixing effect of the limiting groove 421 on the embedded pipe 5. The reason why "it is convenient to position the embedded pipe 5 and the limiting groove 421 on the support member 42, and ensure the limiting and fixing effect of the limiting groove 421 on the embedded pipe 5" is that if the support member 42 and the fixing seat 41 are set to the same size, that is, the diameter of the support member 42 is also set to be larger, then there will be more invalid areas (areas that cannot be limited and fixed) on both sides of the limiting groove 421 on the support member 42 (that is, on both sides of the notch) where the limiting groove 421 is not set. When the support member 42 is used to limit and fix the embedded pipe 5, the embedded pipe 5 can easily correspond to Invalid area setting, at this time, the embedded pipe 5 is not set corresponding to the limiting groove 421, and the limiting groove 421 cannot limit and fix the embedded pipe 5; or, in order to reduce the invalid area on both sides of the limiting groove 421, it is necessary to set the width of the limiting groove 421 to be larger, which leads to a larger gap between the inner wall of the limiting groove 421 and the outer surface of the embedded pipe 5. When the gap is too large, it is easy to make the support 42 lose the limiting and fixing effect on the embedded pipe 5, that is, the embedded pipe 5 can be twisted or displaced in the limiting groove 421 after thermal deformation. Therefore, setting the cross-sectional area of ​​the support 42 along the second direction X2 to be smaller, that is, setting the diameter of the support 42 to be smaller, can facilitate the positioning between the embedded pipe 5 and the limiting groove 421 on the support 42, ensure the limiting and fixing effect of the limiting groove 421 on the embedded pipe 5, and save material costs to a certain extent.

[0042] In some embodiments, in combination Figure 1 , Figure 2As shown, the fixing seat 41 is arranged on the inner side wall of the accommodating cavity, and the supporting member 42 is located in the casting cavity 3. By such arrangement, it is convenient for the supporting member 42 to limit and fix the embedded pipe 5, and at the same time, the influence of the shape profile of the supporting assembly 4 on the product can be reduced to a certain extent. The fixing seat 41 is provided with a limiting portion 411, and the inner side wall of the accommodating cavity is provided with a limiting groove matched with the limiting portion 411, and the limiting portion 411 cooperates with the limiting groove to realize the circumferential limiting of the supporting assembly 4. Specifically, the limiting portion 411 is arranged on the outer peripheral side of the fixed seat 41, and the limiting portion 411 is, for example, a limiting protrusion or a limiting notch, and a limiting groove adapted to the fixed seat 41 and its limiting portion 411 is arranged on the inner wall of the accommodating cavity (i.e., the inner wall of the outer core 2). After the fixed seat 41 and its limiting portion 411 are extended into the limiting groove, the limiting portion 411 on the fixed seat 41 will abut against the inner wall of the limiting groove, and the fixed seat 41 will be restricted from rotating, thereby realizing the circumferential limitation of the entire support assembly 4. It is not difficult to understand that when the above-mentioned fixed seat 41 is in other shapes (for example, a rectangular block structure or a triangular block structure), a limiting portion 411 still needs to be set on the fixed seat 41, and a limiting groove still needs to be set on the outer core 2. However, the role of the limiting portion 411 and the limiting groove at this time is no longer to "limit the fixed seat 41 circumferentially" (at this time, the fixed seat 41 can achieve circumferential limitation by relying on its own structural shape), but to make the fixed seat 41 only fixed in the limiting groove on the outer core 2 at a specific angle, that is, to play an anti-mistake effect. Exemplarily, when the fixed seat 41 is a rectangular block structure, a limiting portion 411 is provided on one side wall of the rectangular block (the limiting portion 411 is taken as a limiting protrusion for explanation here). At this time, the fixed seat 41 and the limiting portion 411 are combined to form a block structure similar to a "convex" shape, and a limiting groove is correspondingly provided on the outer core 2. The limiting groove is adapted to the above-mentioned "convex" block structure, that is, the limiting groove is similar to a "concave" groove structure. Then, at this time, the fixed seat 41 and the limiting portion 411 can only be set in the limiting groove at a specific angle, so as to avoid the angle of the support member 42 connected to the fixed seat 41 from being deflected, thereby ensuring that the limiting groove 421 on the support member 42 always maintains the correct positioning with the embedded pipe 5.

[0043] Of course, in order to achieve the effect of "the limiting groove 421 on the support member 42 is correctly positioned with the embedded pipe 5", other settings can also be used. For example, in the first direction X1, the centroid of the support member 42 and the centroid of the fixing seat 41 are set on different vertical lines, that is, the centroids of the two are not set in the first direction X1. In this way, when the fixing seat 41 rotates around its own axis, it will drive the support member 42 to rotate more eccentrically. In this way, the staff can judge whether the limiting groove 421 can be correctly positioned with the embedded pipe 5 by observing whether the support member 42 is eccentric. When the support member 42 is set eccentrically, the staff can make manual adjustments.

[0044] In the above-mentioned casting mold, by arranging the fixing seat 41 on the inner side wall of the accommodating cavity, arranging the limiting portion 411 on the fixing seat 41, and arranging the limiting groove matched therewith on the inner side wall of the accommodating cavity, it is possible to achieve circumferential limitation of the support component 4 by utilizing the cooperation of the limiting portion 411 and the limiting groove, thereby preventing the support component 4 from rotating around its own axis after being installed on the outer core 2, thereby driving the limiting groove 421 on the support member 42 to rotate, thereby causing the notch of the limiting groove 421 to be misaligned with the embedded pipe 5, making it impossible for the embedded pipe 5 to be placed in the limiting groove 421, thereby facilitating the positioning between the limiting groove and the embedded pipe 5, and ensuring that the limiting and fixing effect of the limiting groove 421 on the embedded pipe 5 can be normally achieved. The structure is simple and convenient for processing and manufacturing.

[0045] In some embodiments, in combination Figures 3 to 6 As shown, the end of the support member 42 connected to the fixed seat 41 is the connecting end, and the end of the support member 42 provided with the limiting groove 421 is the supporting end. In the second direction X2, the cross-sectional area of ​​the connecting end is larger than the cross-sectional area of ​​the supporting end. In other words, the diameter of the fixed end of the support member 42 is larger than the diameter of the connecting end, that is, the support member 42 is a conical structure. By such a configuration, the outer peripheral surface of the support member 42 is an inclined surface. After casting, when the support member 42 needs to be pulled out from the cast product, the friction between the support member 42 and the product is small, which can reduce the wear of the support member 42 on the product and facilitate the detachment of the support member 42.

[0046] In some embodiments, Figures 1 to 3As shown, the support assembly 4 further includes a pull-out member 43, which is, for example, a cylindrical rod-shaped structure. The pull-out member 43 is fixedly connected to the side of the fixed seat 41 that is away from the support member 42, and the pull-out member 43 and the outer core 2 are detachably connected. In other words, the support member 42 is connected to one side of the fixed seat 41, and the pull-out member 43 is fixedly connected to the other side. Through the above arrangement, after casting, the staff can hold the pull-out member 43 to pull the support member 42 from the cast product. In this process, the pull-out member 43 can provide a holding position for the staff, which is convenient for the staff to apply force and facilitate the pull-out operation of the support member 42.

[0047] In some embodiments, in combination Figure 1 , Figure 2 As shown, the outer core 2 is provided with a mounting hole 21 connecting the casting cavity 3 with the outside, and the mounting hole 21 includes a first hole 211 and a second hole 212 connected along the first direction X1. The inner diameter of the first hole 211 is larger than the inner diameter of the second hole 212. By such a configuration, the fixing seat 41 arranged in the first hole 211 can be prevented from coming out of the second hole 212. The fixing seat 41 is arranged in the first hole 211, and a connecting hole 412 is arranged on the side of the fixing seat 41 away from the support member 42. The extraction member 43 is penetrated through the second hole 212 and is fixedly connected to the fixing seat 41 through the connecting hole 412 on the fixing seat 41. The connection between the two is achieved by, for example, threaded connection. The end of the extraction member 43 away from the fixing seat 41 is provided with an external thread, and the extraction member 43 is fixed to the outer core 2 by a fastener 44 provided with an internal thread, and the fastener 44 provided with an internal thread is, for example, a nut. The nut abuts against the outer core 2, such as the recessed groove provided on the outer side of the outer core 2, and part of the outer core 2 is sandwiched between the nut and the fixing seat 41, thereby achieving the fixation of the support assembly 4 and the outer core 2. Through the above arrangement, the fixing seat 41 and the extraction member 43 can be fixedly connected, and the extraction member 43 and the fixing seat 41 can be fixed to the outer core 2 of the casting mold, with a simple structure, easy processing and manufacturing, and convenient installation and disassembly.

[0048] In some embodiments, Figure 1 As shown, the outer core 2 is provided with a riser 22 and a runner 23. One end of the runner 23 is connected to the outside through the riser 22, and the other end is connected to the mold cavity 3. Exemplarily, the runner 23 includes a straight runner 231, a horizontal runner 232 and an inner runner 233. The straight runner 231 extends along the second direction X2, one end of which is connected to the outside through the riser 22, and the other end of which is connected to the inner runner 233 through the horizontal runner 232. The other end of the inner runner 233 is connected to the mold cavity 3. By such a configuration, it is convenient to pour the liquid into the mold cavity 3, ensure the product quality, and enable the casting and molding operation of the product to proceed smoothly.

[0049] In another aspect, the present invention provides a casting method, which uses the casting mold described in any one of the above embodiments.

[0050] like Fig. 9 As shown, the casting method comprises:

[0051] S100, installing the fixing seat 41 on the outer core 2, at which time the support member 42 is located in the accommodating cavity. Through this step, the support assembly can be installed on the outer core 2 as a whole.

[0052] S200, the inner core 1 and the embedded tube 5 are placed in the accommodating cavity of the outer core 2, a casting cavity 3 is formed between the inner core 1 and the outer core 2, the embedded tube 5 is located in the casting cavity 3 and is arranged opposite to the limiting groove 421 on the support member 42. In this step, if the embedded tube 5 is embedded in the outer surface of the inner core 1 during the manufacturing process of the inner core 1, it is only necessary to place the inner core 1 into the accommodating cavity of the outer core 2, and the embedded tube 5 is then placed into the limiting groove 421.

[0053] S300, performing casting molding, that is, passing casting liquid into the casting cavity 3 between the outer core 2 and the inner core 1 through the riser 22 and the runner 23 opened on the outer core 2, and after the casting liquid is cooled and solidified, a casting mold, that is, a cast molded product, can be obtained.

[0054] In the above casting method, by using the casting mold in any of the above embodiments, during the casting process, the embedded pipe 5 can be supported by the support assembly 4 provided on the outer core 2 of the casting mold, which can prevent the embedded pipe 5 from deforming or displacing, thereby causing the embedded pipe 5 to change its position in the product body, thereby ensuring the quality of the cast product. In addition, the casting method can streamline and standardize the casting process, ensure the consistency and purity of the cast product, and reduce unnecessary operating steps, thereby improving casting efficiency.

[0055] In some embodiments, Fig.10 As shown, the support assembly 4 further includes a puller 43 and a fastener 44. The step S100 includes:

[0056] S110 , installing the extraction member 43 and the fixing seat 41 on the outer core 2 , with one end of the extraction member 43 extending out of the outer core 2 .

[0057] It is not difficult to understand that there are many ways to "install the extraction member 43 and the fixing seat 41 on the outer core 2" here. Exemplarily, the above-mentioned installation method can be: first, one end of the extraction member 43 is connected to the fixing seat 41 through the connecting hole 412 on the side of the fixing seat 41 away from the support member 42. The connection method between the two here is, for example, a threaded connection; then, the end of the extraction member 43 that is not connected to the fixing seat 41 is inserted into the second hole 212 provided on the outer core 2, and the extraction member 43 gradually penetrates into the second hole 212, and the fixing member connected to the other end of the extraction member 43 can be gradually installed in the first hole 211, thereby achieving "installation of the extraction member 43 and the fixing seat 41 on the outer core 2". The above installation method can also be: first install the fixing seat 41 of the supporting assembly 4 in the first hole 211 on the outer core, then pass one end of the extraction member 43 through the second hole 212 provided on the outer core 2, and at the same time connect the extraction member 43 with the fixing seat 41 already installed in the first hole 211 (here the two are connected by threads, for example), thereby realizing "the extraction member 43 and the fixing seat 41 are installed on the outer core 2".

[0058] S120, the fastener 44 is installed on the extraction member 43 from the outside of the outer core 2 to fix the extraction member 43 and the fixing seat 41 to the outer core 2. Exemplarily, after the extraction member 43 and the fixing seat 41 are installed on the outer core 2, the end of the extraction member 43 not connected to the fixing seat 41 protrudes from the second hole 212, and at this time, the fastener 44 with internal threads is connected to the extraction member 43 by threads.

[0059] Through the above operation steps, the extraction member 43 and the mounting seat can be fixed to the outer core 2 by the fastener 44, which is simple to install and has high working efficiency.

[0060] In some embodiments, Fig.11 As shown, after the casting is performed, the casting method further includes: S400, taking out the casting mold; the step S400 includes:

[0061] S410, removing the outer core 2 to expose the support assembly 4, the inner core 1 and the casting mold. Here, the method of removing the outer core 2 is, for example, to destroy and remove the outer core 2 using a tool or other mechanical means.

[0062] S420, separating the support assembly 4 from the casting mold by means of the extraction member 43, that is, the staff applies force to the extraction member 43 by holding the extraction member 43, thereby driving the support assembly 4 to separate from the casting mold.

[0063] S430, removing the inner core 1 to obtain the casting mold. Here, the method of removing the inner core 1 is, for example, using a tool or other mechanical means to destroy and remove the inner core 1.

[0064] The above-mentioned operation steps for obtaining the casting mold are simple and effective, and can also separate the support component 4 from the casting mold, so as to facilitate the reuse of the support component 4 in subsequent casting operations, and can ensure the purity of the product.

[0065] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A casting mold, characterized in that: include: An outer core (2) having a receiving cavity therein; An inner core (1) is arranged in the accommodating cavity, and a casting cavity (3) is formed between the outer surface of the inner core (1) and the inner side wall of the accommodating cavity; a pre-buried pipe (5) is arranged in the casting cavity (3); A support assembly (4) is arranged on the outer core (2); the support assembly (4) comprises a fixing seat (41) and a supporting member (42) connected to each other; the fixing seat (41) is fixed to the outer core (2); The support member (42) is provided with a limiting groove (421); the embedded pipe (5) is arranged in the limiting groove (421), and a gap is provided between the outer surface of the embedded pipe (5) and the inner side wall of the limiting groove (421).

2. The casting mold according to claim 1, characterized in that: The fixing seat (41) and the supporting member (42) are connected along a first direction (X1); a cross-sectional area of ​​the fixing seat (41) along a second direction (X2) is greater than a cross-sectional area of ​​the supporting member (42) along the second direction (X2); and the second direction (X2) is arranged at an angle to the first direction (X1).

3. The casting mold according to claim 1, characterized in that: The fixing seat (41) is arranged on the inner side wall of the accommodating cavity, and the supporting member (42) is located in the casting cavity (3); the fixing seat (41) is provided with a limiting portion (411), and the inner side wall of the accommodating cavity is provided with a limiting groove matched with the limiting portion (411), and the limiting portion (411) cooperates with the limiting groove to realize circumferential limitation of the supporting assembly (4).

4. The casting mold according to claim 1, characterized in that: One end of the support member (42) connected to the fixing seat (41) is a connecting end, and the other end provided with a limiting groove (421) is a supporting end. In the second direction (X2), the cross-sectional area of ​​the connecting end is larger than the cross-sectional area of ​​the supporting end; the second direction (X2) is arranged at an angle to the first direction (X1).

5. The casting mold according to any one of claims 1 to 4, characterized in that: The support assembly (4) further comprises an extraction member (43); the extraction member (43) is fixedly connected to a side of the fixing seat (41) facing away from the support member (42), and the extraction member (43) and the outer core (2) are detachably connected.

6. The casting mold according to claim 5, characterized in that: The outer core (2) is provided with a mounting hole (21) connecting the casting cavity (3) with the outside, the mounting hole (21) comprising a first hole (211) and a second hole (212) connected along a first direction (X1), the inner diameter of the first hole (211) being greater than the inner diameter of the second hole (212); The fixing seat (41) is arranged in the first hole (211); a connecting hole (412) is arranged on a side of the fixing seat (41) away from the supporting member (42); the extraction member (43) is passed through the second hole (212) and is fixedly connected to the fixing seat (41) through the connecting hole (412); an external thread is arranged on one end of the extraction member (43) away from the fixing seat (41); the extraction member (43) is fixed to the outer core (2) through a fastener (44) provided with an internal thread.

7. The casting mold according to claim 1, characterized in that: The outer core (2) is provided with a riser (22) and a runner (23); one end of the runner (23) is connected to the outside through the riser (22), and the other end is connected to the casting cavity (3).

8. A casting method, characterized in that: Using the casting mold according to any one of claims 1 to 7, the casting method comprises: S100, installing the fixing seat (41) on the outer core (2), and the supporting member (42) is located in the accommodating cavity; S200, placing the inner core (1) and the embedded tube (5) into the accommodating cavity of the outer core (2), so that the casting cavity (3) is formed between the inner core (1) and the outer core (2), and the embedded tube (5) is located in the casting cavity (3) and is arranged opposite to the limiting groove (421) on the support member (42); S300, performing casting molding.

9. The casting method according to claim 8, characterized in that: The support assembly (4) further comprises a puller (43) and a fastener (44), and the step S100 comprises: S110, installing the extraction member (43) and the fixing seat (41) on the outer core (2), with one end of the extraction member (43) extending outward from the outer core (2); S120, installing the fastener (44) on the extraction member (43) from the outside of the outer core (2) to fix the extraction member (43) and the fixing seat (41) to the outer core (2).

10. The casting method according to claim 9, characterized in that: After step S300, the casting method further includes: S400, taking out the casting mold; Step S400 includes: S410, removing the outer core (2) to expose the support assembly (4), the inner core (1) and the casting mold; S420, separating the support assembly (4) from the casting mold by using the extraction member (43); S430, removing the inner core (1) to obtain the casting mold.

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