Water-cooled spray plate and its cooling channel
By constructing a closed-loop cooling channel in the water-cooled injection plate, the problems of dead corners and water leakage in the traditional water-cooled injection plate are solved, achieving a more efficient cooling effect and a shorter production cycle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGCHAI
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional water-cooled injection plates have dead zones in their cooling water channels, which affects the cooling effect. Furthermore, casting defects can easily lead to water leakage, extending the production cycle.
The substrate is made of one piece and the water channel holes in different directions are formed by mechanical penetration to build a closed circulation loop. The ends of the water channel holes are sealed with plugs to form a unidirectional circulation cooling channel.
It eliminates dead zones in the flow, reduces the risk of water leakage in castings, shortens the manufacturing cycle, and improves the cooling effect and the uniformity of the flow channels.
Smart Images
Figure CN224424192U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of casting technology, and in particular relates to a water-cooled injection plate and its cooling channel. Background Technology
[0002] During sand injection in hot core box core making, the injection plate is tightly attached to the upper surface of the hot core box to allow coated sand to be injected into the core box through the injection head, where it solidifies to form a sand core. To prevent the injection nozzles on the injection plate from being blocked by the solidified coated sand, it is often designed as a water-cooled injection plate. Traditionally, water-cooled injection plates are made by hand, then cast into a part. However, the cast parts are prone to leakage due to casting defects (such as sand holes and porosity). Leaking castings require recasting, which lengthens the production cycle. Furthermore, water-cooled injection plates made from traditional castings have irregular, wide channels for cooling water, creating dead zones where water flow is stagnant, affecting the cooling effect of the water-cooled injection plate.
[0003] Therefore, how to provide a water-cooled injection plate to solve the defect of dead corners in the cooling water flow channel of water-cooled injection plates in traditional casting processes is a technical problem that urgently needs to be solved by those skilled in the art.
[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content
[0005] This disclosure provides at least one water-cooled jet plate and its cooling channel.
[0006] In a first aspect, embodiments of this disclosure provide a water-cooled injection plate, comprising:
[0007] An integrally formed injection plate substrate with several injection holes.
[0008] Several water channels penetrating the substrate, including at least two water channels extending in different directions, are interconnected to form cooling channels, and the cooling channels are all arranged within a range of 5-10 mm from the edge of the sand-shooting hole.
[0009] Several plugs are used to seal the end openings of the waterway holes so that the waterway, once connected, forms a closed loop with only one inlet and one outlet.
[0010] In one alternative implementation, the diameters of the waterway holes are the same.
[0011] In one optional embodiment, the water channel includes longitudinal channels extending along the length direction of the spray plate substrate and transverse channels extending along the width direction. The longitudinal channels and transverse channels are perpendicular to each other and intersect to form a grid-like cooling channel.
[0012] In one optional embodiment, the end of the water channel hole is provided with an internal thread, and the tail end of the plug is provided with an external thread, and the plug is screwed into the end of the water channel hole through the thread.
[0013] In one alternative embodiment, a sealing gasket is provided at the end of the plug where it meets the waterway hole.
[0014] In one alternative embodiment, the plug is sealed to the end of the waterway hole by welding.
[0015] Secondly, embodiments of this disclosure also provide a cooling channel for a water-cooled injection plate, the cooling channel being formed from a mechanically penetrated, integrally molded injection plate substrate, comprising:
[0016] At least two water channels extending in different directions, each water channel is interconnected to form a cooling flow channel, and the cooling flow channels are all arranged within a range of 5-10 mm from the edge of the sand-shooting hole;
[0017] Several plugs are used to seal the end openings of the waterway holes so that the waterway, once connected, forms a closed loop with only one inlet and one outlet.
[0018] In one alternative implementation, the diameters of the waterway holes are the same.
[0019] In one optional embodiment, the water channel includes longitudinal channels extending along the length direction of the spray plate substrate and transverse channels extending along the width direction. The longitudinal channels and transverse channels are perpendicular to each other and intersect to form a grid-like cooling channel.
[0020] In one optional embodiment, the end of the water channel hole is provided with an internal thread, and the tail end of the plug is provided with an external thread, and the plug is screwed into the end of the water channel hole through the thread.
[0021] The beneficial effect of this utility model is that the water-cooled injection plate seals the end of the water channel hole with a plug, so that the interconnected water channels form a closed circulation loop with only one inlet and one outlet. The water flows along the water channel hole, avoiding dead flow corners.
[0022] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and drawings.
[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0025] Figure 1 A perspective view of a water-cooled injection plate provided in an embodiment of this disclosure;
[0026] Figure 2 A cross-sectional view of a water-cooled injection plate provided in an embodiment of this disclosure;
[0027] Figure 3 A cross-sectional view of a water-cooled injection plate manufactured using traditional casting techniques.
[0028] In the picture:
[0029] 100, Shot plate substrate; 110, Shot hole; 200, Water channel hole; 210, End; 220, Inlet; 230, Outlet; 240, Longitudinal channel; 250, Transverse channel; 300, Plug; 310, Tail end; 320, Sealing gasket; 400, Casting process hole. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0031] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.
[0032] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.
[0033] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
[0034] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.
[0035] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.
[0036] Research has revealed the following drawbacks of existing technologies: Traditionally, water-cooled spray plates are manufactured by hand, with the core made and then cast. However, these castings are prone to leakage due to casting defects (such as sand holes and air pockets). Leaking castings require recasting, extending the production cycle. Furthermore, water-cooled spray plates made from traditional castings have irregular, wide channels for cooling water, creating dead zones where water flow is stagnant, affecting the cooling effect of the spray plate.
[0037] Based on the above research, this disclosure provides a water-cooled injection plate and its cooling channel. The injection plate substrate is made of one piece as the manufacturing material. A one-way circulating cooling channel is constructed inside the injection plate through mechanically through-hole water channels. Compared with the traditional casting process, it is simpler to operate and less prone to water leakage, thus shortening the manufacturing cycle.
[0038] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.
[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0040] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0041] See Figure 1 and Figure 2 This disclosure provides a water-cooled injection plate, comprising: an integrally formed injection plate substrate 100 having a plurality of injection holes 110 thereon, the injection holes 110 being adapted to the injection head of a heat core box for cooling the coated sand and preventing the coated sand from solidifying. The injection plate substrate 100 has a plurality of water channel holes 200 formed by mechanically penetrating the integrally formed injection plate substrate 100, each including at least two water channel holes 200 extending in different directions, each water channel hole 200 interconnecting to form a cooling flow channel, and the water channel holes 200 being arranged within a range of 5-10 mm from the edge of the injection hole 110 to achieve cooling of the injection hole 110. A plug 300 is provided at the end 210 of the water channel hole 200, the plug 300 being used to seal the opening of the end 210 of the water channel hole 200, so that the through-flow water channel forms a closed circulation loop with only one inlet 220 and one outlet 230.
[0042] See Figure 3 , Figure 3A cross-section of a water-cooled injection plate manufactured using traditional casting techniques. Due to casting requirements, the 400mm casting process holes are relatively large, making sealing difficult. Furthermore, if the casting has sand holes or air pockets, it is prone to leakage. Leaks necessitate recasting, resulting in a long production cycle. From... Figure 3 It can be seen that the cooling channel of the water-cooled jet plate is an irregular, open channel, and dead flow corners are easily formed at its edges.
[0043] See Figure 2 , Figure 2 A cross-sectional view of a water-cooled injection plate provided in an embodiment of this disclosure, as shown below. Figure 2 As indicated by the middle arrow, the water flow is suitable for flowing along the water channel hole 200, avoiding dead flow corners. The water-cooled injection plate uses an integrally molded injection plate base 100 as the base material, and the water channel hole 200 is formed by mechanical through drilling. Compared with the traditional casting process, the production cycle is shorter and the risk of water leakage caused by casting sand holes and air holes is eliminated.
[0044] See also Figure 2 In some embodiments, the diameter of each water channel hole 200 is the same so that the flow resistance of each branch channel is relatively balanced, which is conducive to the uniform distribution of water flow, achieves uniform coverage of water flow, and reduces the risk of local overheating.
[0045] See also Figure 2 In some embodiments, the water channel 200 includes longitudinal channels 240 extending along the length of the injection plate substrate and transverse channels 250 extending along the width. The longitudinal channels 240 and transverse channels 250 are perpendicularly intersecting each other to form a grid-like cooling channel. The perpendicularly intersecting water channel 200 further reduces the processing difficulty, requiring only bidirectional drilling along the X / Y axes into the injection plate substrate 100, making the operation simple.
[0046] See also Figure 2 In some embodiments, the end 210 of the water channel 200 is provided with an internal thread, and the tail end 310 of the plug 300 is correspondingly provided with an external thread. The plug 300 is screwed into the end 210 of the water channel 200 through the thread. With the above configuration, the plug 300 can be flexibly disassembled and assembled. The plug 300 can be set at the end 210 of different water channel holes 200, and the flow path of the flow channel can be changed according to the requirements.
[0047] See also Figure 2 In some embodiments, a sealing gasket 320 is provided at the joint between the plug 300 and the end 210 of the water channel 200 to prevent water leakage at the joint between the plug 300 and the end 210.
[0048] See also Figure 2 In some embodiments, the plug 300 is made of 304 stainless steel and is sealed to the end 210 of the aluminum injection plate substrate 100 by argon arc welding.
[0049] See Figure 2 Some embodiments also provide a cooling channel for a water-cooled shot plate, the cooling channel being formed by mechanically penetrating an integrally formed shot plate substrate 100, including: at least two water channel holes 200 extending in different directions, each water channel hole 200 being interconnected to form a cooling channel, and the water channel holes 200 being arranged within a range of 5-10 mm from the edge of the shot hole 110; and a plurality of plugs 300 for sealing the end openings 210 of the water channel holes 200, so that the penetrating water channel forms a closed circulation loop with only one inlet 220 and one outlet 230.
[0050] In summary, this water-cooled injection plate uses an integrally molded injection plate substrate 100 as the base material. Water channels 200 are formed by mechanical through drilling. Compared with the traditional casting process, the production cycle is shorter and the risk of water leakage caused by casting sand holes and air holes is eliminated. In addition, the end 210 of the water channel 200 is sealed by the plug 300, so that the interconnected water channels form a closed circulation loop with only one inlet 220 and one outlet 230. The water flows along the water channel 200, avoiding the occurrence of dead flow corners.
[0051] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0052] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.
[0053] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.
[0054] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.
[0055] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A water-cooled injection plate, characterized in that, include: An integrally formed injection plate substrate (100) is provided with a plurality of injection holes (110). A number of water channels (200) penetrating the shot plate substrate (100) include at least two water channels (200) extending in different directions. Each water channel (200) is interconnected to form a cooling channel, and the cooling channels are all arranged within a range of 5-10 mm from the edge of the shot hole (110). Several plugs (300) are used to seal the end (210) opening of the water channel hole (200) so that the water channel hole (200) after penetration forms a closed circulation loop with only one inlet (220) and one outlet (230).
2. The water-cooled injection plate as described in claim 1, characterized in that, The diameter of each waterway hole (200) is the same.
3. The water-cooled injection plate as described in claim 1, characterized in that, The water channel (200) includes a longitudinal channel (240) extending along the length direction of the spray plate substrate (100) and a transverse channel (250) extending along the width direction. The longitudinal channel (240) and the transverse channel (250) are perpendicular to each other and intersect to form a grid-like cooling channel.
4. The water-cooled injection plate as described in claim 1, characterized in that, The end (210) of the water channel hole (200) is provided with an internal thread, and the tail end (310) of the plug (300) is provided with an external thread. The plug (300) is screwed into the end (210) of the water channel hole (200) through the thread.
5. The water-cooled injection plate as described in claim 4, characterized in that, A sealing gasket (320) is provided at the joint between the plug (300) and the end (210) of the water channel hole (200).
6. The water-cooled injection plate as described in claim 1, characterized in that, The plug (300) and the end (210) of the water channel hole (200) are sealed by welding.
7. A cooling channel for a water-cooled injection plate, characterized in that, The cooling channel is formed by a mechanically penetrated, integrally molded injection plate substrate (100), including: At least two water channel holes (200) extending in different directions, each water channel hole (200) is interconnected to form a cooling flow channel, and the cooling flow channels are all arranged within a range of 5-10 mm from the edge of the sand-shooting hole (110); Several plugs (300) are used to seal the end (210) opening of the water channel hole (200) so that the water channel hole (200) after penetration forms a closed circulation loop with only one inlet (220) and one outlet (230).
8. The cooling channel as described in claim 7, characterized in that, The diameter of each waterway hole (200) is the same.
9. The cooling channel as described in claim 7, characterized in that, The water channel (200) includes a longitudinal channel (240) extending along the length direction of the spray plate substrate (100) and a transverse channel (250) extending along the width direction. The longitudinal channel (240) and the transverse channel (250) are perpendicular to each other and intersect to form a grid-like cooling channel.
10. The cooling channel as described in claim 7, characterized in that, The end (210) of the water channel hole (200) is provided with an internal thread, and the tail end (310) of the plug (300) is provided with an external thread. The plug (300) is screwed into the end (210) of the water channel hole (200) through the thread.