A centrifugal casting device with pre-cooling effect

Abstract

This invention discloses a centrifugal casting device with pre-cooling effect, relating to the field of centrifugal casting technology. It includes a cooling mechanism installed on the outside of the mold, with both ends of the cooling mechanism movably connected to both ends of the mold. The cooling mechanism contains partitions distributed along the mold, and a rotary drive is located on one side of each partition. The rotary drive can rotate the partitions, thereby changing the flow direction of cooling water within the cooling mechanism. The beneficial effects of this invention are that it utilizes the partitions and the rotary drive to change the flow direction of cooling water within the outer shell, as well as the time of heat exchange. The device can adjust the cooling effect according to the state of the casting, effectively preventing thermal damage to the mold. It also effectively prevents the casting from cooling too quickly, leading to thermal stress concentration and a decrease in casting quality. After the final molding of the mold is completed, a cutting mechanism is activated to perform preliminary machining on the inner wall of the cooled mold, removing segregated portions.

Description

Technical Field

[0001] This invention relates to the field of centrifugal casting technology, and in particular to a centrifugal casting device with a pre-cooling effect. Background Technology

[0002] Centrifugal casting is a widely used process in metal casting, primarily for manufacturing castings with significant thickness and complex shapes. This process utilizes centrifugal force to inject molten metal into a rotating mold, causing the liquid metal to distribute evenly along the inner wall of the mold and solidify into the desired shape.

[0003] In centrifugal casting, several cooling methods are typically used to control the cooling rate and improve the microstructure of the casting: Air cooling: After removing the casting from the mold, it is left to cool naturally in the air. This method is suitable for most castings, but the cooling rate is relatively slow. Water cooling: Water is sprayed onto the surface of the casting or it is immersed in water to accelerate cooling. Water cooling can significantly improve the cooling rate, but it may also lead to an increase in internal stress in the casting, requiring control of the uniformity and rate of cooling.

[0004] After the casting has cooled, segregation often occurs on the inner wall. Segregation refers to the uneven distribution of components in alloys, mixed materials, or granular materials. Segregation commonly occurs in various fields such as metal casting, powder metallurgy, and concrete, and can lead to unstable or substandard product performance. Summary of the Invention

[0005] In this section, as well as in the abstract and title of this application, some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract, and the title of this application, and such simplifications or omissions shall not be used to limit the scope of the invention.

[0006] In view of the problems existing in the above or prior art, the present invention is proposed.

[0007] Therefore, the purpose of this invention is to provide a centrifugal casting device with a pre-cooling effect, which solves the problems of poor cooling effect and lack of control in centrifugal casting, and also solves the problem of segregation of castings.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a centrifugal casting device with pre-cooling effect, comprising a cooling mechanism installed on the outside of the mold, wherein the two ends of the cooling mechanism are movably connected to the two ends of the mold; the cooling mechanism is provided with partitions distributed along the mold, and a rotary drive is provided on one side of the partition, wherein the rotary drive can rotate the partition, thereby changing the flow direction of cooling water in the cooling mechanism;

[0009] When the partition rotates 180 degrees clockwise, it can trigger different numbers of triggers, thereby opening and closing some mechanisms in the device by the number of triggers.

[0010] A fan is used to dissipate heat from the mold.

[0011] The cutting mechanism performs initial machining on the castings inside the mold.

[0012] As a preferred embodiment of the centrifugal casting device with pre-cooling effect described in this invention, the cooling mechanism includes a housing, the two ends of which are movably connected to the two ends of the mold, and a sealing strip is provided at the connection between the two; the interior of the housing is provided with the partition members sleeved on the mold, and the spacing between the partition members is consistent; one side of the partition member is provided with the rotary drive member, and the other side is provided with the trigger member.

[0013] As a preferred embodiment of the centrifugal casting device with pre-cooling effect described in this invention, the mold is provided with a first clamping plate at one end and a second clamping plate at the other end.

[0014] As a preferred embodiment of the centrifugal casting device with pre-cooling effect described in this invention, wherein: one end of the cooling mechanism is provided with a fan and the other end is provided with a cutting mechanism;

[0015] The fan is connected to the output end of the rotary motor, and the outside of the rotary motor is fixed to the outer casing by a bracket; the lower end of the bracket has an opening.

[0016] As a preferred embodiment of the centrifugal casting device with pre-cooling effect described in this invention, the cutting mechanism includes a long rod, one end of which is provided with a telescopic head and the other end is connected to the upper end of the movable bracket; the lower end of the telescopic head is provided with a cutting blade, the lower end of the movable bracket is connected to a lead screw, and the lead screw is connected to the output end of the first motor.

[0017] As a preferred embodiment of the centrifugal casting device with pre-cooling effect described in this invention, the lower end of the cooling mechanism is provided with a support.

[0018] The support includes a base plate, which is fixed to the outside of the outer shell by columns.

[0019] As a preferred embodiment of the centrifugal casting device with pre-cooling effect described in this invention, one end of the mold is connected to the driven head, and the driven head is driven by a track and a drive head; the drive head is connected to the output end of the second motor.

[0020] As a preferred embodiment of the centrifugal casting device with pre-cooling effect described in this invention, the partition includes a partition plate that is semi-enclosed in annular shape and has a flow port; the side of the partition plate has an annular groove with teeth inside; the outer side of the partition plate has an extrusion head near the flow port; the inner side of the partition plate has an opening with a movable partition plate inside.

[0021] As a preferred embodiment of the centrifugal casting device with pre-cooling effect described in this invention, the rotary drive component includes a drive gear, the middle part of which is connected to the rotary shaft via an electromagnetic lock head, and the position of each drive gear corresponds to the position of each partition component; the rotary shaft is connected to the output end of a third motor.

[0022] As a preferred embodiment of the centrifugal casting device with pre-cooling effect described in this invention, the triggering element includes a trigger head, a spring is provided at the rear end of the trigger head, and an electrode plate is provided on the side of the trigger head.

[0023] The beneficial effects of this invention are as follows: This invention utilizes partitions and rotating drive components to change the flow direction of cooling water within the outer shell and the time of heat exchange. When molten metal is poured into the mold, enhanced cooling is required. At this time, rotating the first three partitions gradually raises the position of the flow port, reduces the flow rate of cooling water, increases the cooling time, and gradually enhances the cooling effect. Simultaneously, when the rotating partitions complete a 180-degree rotation, the extrusion head triggers three trigger components, initiating air cooling and accelerating mold forming. Subsequently, rotating the remaining three partitions triggers all trigger components, and simultaneously, all movable partitions rise, accelerating the flow rate of cooling water, carrying away more heat, and completing the final mold forming. At this point, the cutting mechanism is activated to perform preliminary processing on the inner wall of the cooled mold, removing segregated portions. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0025] Figure 1 One of the overall schematic diagrams of a centrifugal casting device with pre-cooling effect;

[0026] Figure 2 The second overall schematic diagram of a centrifugal casting device with pre-cooling effect;

[0027] Figure 3A schematic diagram of the internal structure of a centrifugal casting device with pre-cooling effect;

[0028] Figure 4 A schematic diagram of a partition component for a centrifugal casting device with pre-cooling effect;

[0029] Figure 5 A schematic diagram of the rotary drive component of a centrifugal casting device with pre-cooling effect;

[0030] Figure 6 A schematic diagram of the trigger element for a centrifugal casting device with pre-cooling effect. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0034] Reference Figures 1-6 This is the first embodiment of the present invention. This embodiment provides a centrifugal casting device with a pre-cooling effect, which includes a cooling mechanism 100 installed on the outside of a mold 200. The two ends of the cooling mechanism 100 are movably connected to the two ends of the mold 200. The cooling mechanism 100 is provided with partition members 101 distributed along the mold 200. A rotation drive member 103 is provided on one side of the partition member 101. The rotation drive member 103 can rotate the partition member 101, thereby changing the flow direction of cooling water in the cooling mechanism 100.

[0035] When the partition 101 rotates 180 degrees clockwise, the partition 101 can trigger a different number of triggers 104, thereby opening and closing some mechanisms in the device by the number of triggers 104.

[0036] Fan 300 is used to cool the mold 200.

[0037] The cutting mechanism 400 performs initial machining on the castings inside the mold 200.

[0038] The cooling mechanism 100 includes a housing 102, the two ends of which are movably connected to the two ends of the mold 200, and a sealing strip is provided at the connection between the two. Inside the housing 102, there is a partition 101 sleeved on the mold 200, and the spacing between the partitions 101 is consistent. A rotation drive 103 is provided on one side of the partition 101, and a trigger 104 is provided on the other side.

[0039] Preferably, six partitions 101 are provided, each partition 101 corresponding to a drive gear 103a; the spacing between the partitions 101 is consistent, and the cooling water enters between the partitions 101 through the flow port 101e to the next section, and the cooling water also flows out through the flow port 101e. Whenever the position of one of the flow ports 101e increases due to the rotation of the partition 101, the residence time of the cooling water in the section increases, which increases the time for heat exchange between the cooling water and the mold, thereby increasing the cooling effect.

[0040] Preferably, the cooling mechanism 100 has a cooling water inlet at the upper end near the fan 300 and a cooling water outlet at the lower end near the cutting mechanism 400.

[0041] Cooling water is poured into the outer casing 102, while the mold 200 rotates continuously at high speed throughout the process. The outer casing 102 is not fixed to the mold 200, and a sealing strip is used to prevent the cooling water from leaking.

[0042] The mold 200 has a first clamping plate 201 at one end and a second clamping plate 202 at the other end. The inner ends of the first clamping plate 201 and the second clamping plate 202 are provided with plates that have the same inner diameter as the mold 200, and the plates can be moved by an electric push rod.

[0043] The cooling mechanism 100 has a fan 300 at one end and a cutting mechanism 400 at the other end;

[0044] The fan 300 is connected to the output end of the rotary motor 302. The outer side of the rotary motor 302 is fixed to the outer casing 102 by the bracket 301. The lower end of the bracket 301 is provided with an opening 303.

[0045] Track 602 passes through opening 303, and the transmission of track 602 is not affected by bracket 301.

[0046] The cutting mechanism 400 includes a long rod 401, one end of which is provided with a telescopic head 402 and the other end is connected to the upper end of a movable bracket 404; the lower end of the telescopic head 402 is provided with a cutting blade 403, and the lower end of the movable bracket 404 is connected to a lead screw 405, which is connected to the output end of a first motor 406.

[0047] The telescopic head 402 extends the cutting blade 403, and the casting rotates with the mold 200, while the cutting blade 403 cuts the inner wall of the casting.

[0048] The lower end of the cooling mechanism 100 is provided with a bracket 500;

[0049] The bracket 500 includes a base plate 501, which is fixed to the outside of the outer shell 102 by a column 502.

[0050] One end of the mold 200 is connected to the driven head 603, which is driven by the drive head 601 through the track 602; the drive head 601 is connected to the output end of the second motor 600.

[0051] The partition 101 includes a partition 101a, which is semi-enclosed in an annular shape and has a flow port 101e. The side of the partition 101a has an annular groove 101b, and a toothed head 101c is provided in the annular groove 101b. The outer side of the partition 101a has a pressing head 101d, which is close to the flow port 101e. The inner side of the partition 101a has an opening 101f, and a movable partition 101g is provided inside the opening 101f.

[0052] The rotary drive component 103 includes a drive gear 103a, the middle of which is connected to the rotary shaft 103c via an electromagnetic lock head 103b. The position of each drive gear 103a corresponds to the position of each partition 101. The rotary shaft 103c is connected to the output end of the third motor 103d.

[0053] The electromagnetic lock head 103b uses an electromagnet, and the suction plate is placed on the drive gear 103a. The electromagnetic lock head 103b controls different drive gears 103a to rotate with the rotating shaft 103c.

[0054] The trigger 104 includes a trigger head 104a, a spring 104b at the rear end of the trigger head 104a, and an electrode plate 104c on the side of the trigger head 104a.

[0055] During use, the partition 101 in the device undergoes three changes during the process of pouring molten metal into the mold until it cools and forms the mold. The first change is when the molten metal is just poured into the mold, at which point the temperature of the mold rises rapidly. To prevent thermal damage to the mold, the three partitions 101 closest to the fan 300 will rotate under the action of the rotary drive 103. At this time, the rotary drive 103 corresponding to the partition 101 that needs to be rotated is fixed to the rotating shaft 103c under the action of the electromagnetic lock head 103b, so that the rotary drive 103 corresponding to the partition 101 that needs to be rotated can rotate. After the three partitions 101 complete a 180-degree rotation, the extrusion head 101d extrudes one end of the trigger head 104a, and the trigger head 104a retracts. When all three trigger heads 104a retract simultaneously, the rotary motor 302 that controls the rotation of the fan 300 is energized, and the device begins to cool, and the casting begins to solidify.

[0056] Afterwards, the remaining three partition plates 101 also rotate under the same operation. At this time, all the partition plates 101 have rotated, and all six triggers 104 have retracted. At this time, the first clamping plate 201 and the second clamping plate 202 clamp and fix the casting. At the same time, all the movable partition plates 101g are retracted under the action of the electric push rod. The flow rate of cooling water in the outer shell 102 increases, and the cooling effect begins to slow down to avoid excessive cooling and stress concentration inside the casting. Finally, the cutting mechanism 400 extends into the mold 200 to scrape off the segregated parts of the casting.

[0057] In summary, the device utilizes the baffle 101 and the rotary drive 103 to change the flow direction of cooling water within the outer casing 102 and the time of heat exchange. When molten metal is poured into the mold, enhanced cooling is required. At this time, rotating the first three baffles 101 gradually raises the position of the flow port 101e, reduces the flow rate of cooling water, increases the cooling time, and gradually enhances the cooling effect. Simultaneously, after the rotating baffle 101 completes a 180-degree rotation, the extrusion head 101d triggers three triggers 104, initiating air cooling and accelerating mold forming. Subsequently, rotating the remaining three baffles 101 triggers all triggers 104, and simultaneously, all movable baffles 101g rise, accelerating the flow rate of cooling water, removing more heat, and completing the final mold forming. At this point, the cutting mechanism 400 is activated to perform preliminary processing on the inner wall of the cooled mold, removing segregated portions.

[0058] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0059] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0060] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A centrifugal casting device with pre-cooling effect, characterized in that: include, A cooling mechanism (100) is installed on the outside of the mold (200), and both ends of the cooling mechanism (100) are movably connected to both ends of the mold (200); the cooling mechanism (100) is provided with partition members (101) distributed along the mold (200), and a rotary drive member (103) is provided on one side of the partition member (101). The rotary drive member (103) can rotate the partition member (101) and thereby change the flow direction of cooling water in the cooling mechanism (100); When the partition (101) rotates 180 degrees clockwise, the partition (101) can trigger a different number of triggers (104), thereby opening and closing some mechanisms in the device by the number of triggers (104); A fan (300) is used to air-cool the castings in the mold (200); The cutting mechanism (400) performs initial machining on the castings inside the mold (200); The cooling mechanism (100) includes a housing (102), the two ends of which are movably connected to the two ends of the mold (200), and a sealing strip is provided at the connection between the two. Inside the housing (102) is a partition (101) sleeved on the mold (200), and the partitions (101) are spaced evenly. The partition (101) has a rotary drive (103) on one side and a trigger (104) on the other side. The partition member (101) includes a partition (101a), which is semi-enclosed in annular shape and has a flow port (101e). The side of the partition (101a) is provided with an annular groove (101b), and a tooth (101c) is provided in the annular groove (101b). An extrusion head (101d) is provided on the outer side of the partition (101a) and is close to the flow port (101e). An opening (101f) is provided on the inner side of the partition (101a), and a movable partition (101g) is provided inside the opening (101f). The rotary drive (103) includes a drive gear (103a), the middle of which is connected to the rotary shaft (103c) via an electromagnetic lock head (103b). The position of each drive gear (103a) corresponds to the position of each partition (101). The rotary shaft (103c) is connected to the output end of the third motor (103d). The trigger (104) includes a trigger head (104a), a spring (104b) is provided at the rear end of the trigger head (104a), and an electrode plate (104c) is provided on the side of the trigger head (104a). The three partitions (101) complete a 180-degree rotation, the extrusion head (101d) extrudes one end of the trigger head (104a), the trigger head (104a) retracts, and when the three trigger heads (104a) retract simultaneously, the rotary motor (302) that controls the rotation of the fan (300) is powered on, at which point the device begins to air cool and the casting begins to solidify.

2. The centrifugal casting device with pre-cooling effect as described in claim 1, characterized in that: The mold (200) has a first clamping plate (201) at one end and a second clamping plate (202) at the other end.

3. The centrifugal casting device with pre-cooling effect as described in claim 2, characterized in that: The cooling mechanism (100) is provided with a fan (300) at one end and a cutting mechanism (400) at the other end. The fan (300) is connected to the output end of the rotary motor (302), and the outer side of the rotary motor (302) is fixed to the outer shell (102) by a bracket (301); the lower end of the bracket (301) is provided with an opening (303).

4. The centrifugal casting device with pre-cooling effect as described in claim 1, characterized in that: The cutting mechanism (400) includes a long rod (401), one end of which is provided with a telescopic head (402), and the other end is connected to the upper end of a movable bracket (404); the lower end of the telescopic head (402) is provided with a cutting blade (403), and the lower end of the movable bracket (404) is connected to a lead screw (405), which is connected to the output end of a first motor (406).

5. The centrifugal casting device with pre-cooling effect as described in claim 2, characterized in that: The lower end of the cooling mechanism (100) is provided with a bracket (500). The bracket (500) includes a base plate (501), which is fixed to the outside of the outer shell (102) by a column (502).

6. The centrifugal casting device with pre-cooling effect as described in claim 1, characterized in that: One end of the mold (200) is connected to the driven head (603), and the driven head (603) is driven by the drive head (601) through the track (602); the drive head (601) is connected to the output end of the second motor (600).

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