Partition controllable cooling of tractor cylinder head casting mold

Abstract

The application discloses a partition-controllable cooling tractor cylinder cover casting mold, which comprises a mold body and a cover plate, the mold body is internally provided with a cavity for forming a tractor cylinder cover, the outer side of the mold body is provided with a first water channel and a second water channel, the first water channel is located beside the cavity, and the second water channel corresponds to the cavity; the cover plate is detachably installed on the outer side of the mold body, and the cover plate cooperates with the first water channel and the second water channel to form a first cooling area and a second cooling area respectively; the first cooling area and the second cooling area are both suitable for the input and output of cooling medium to realize the cooling and temperature reduction of the mold body, and the input ends of the first cooling area and the second cooling area are provided with adjusting valves for controlling the flow of the cooling medium. The application has the beneficial effects that: through the control of the adjusting valves, the medium flow proportion of the two cooling areas can be flexibly adjusted according to actual production requirements, and partition cooling control is realized; after the cover plate is dismounted, the internal dirt can be conveniently cleaned, the fault can be conveniently overhauled, and the maintenance convenience is improved.

Description

Technical Field

[0001] This application relates to the field of mold technology, and in particular to a casting mold for a tractor cylinder head with zoned controllable cooling. Background Technology

[0002] The cylinder head, or simply cylinder head, is an important component at the top of the engine, typically made of aluminum alloy or cast iron. It is connected to the engine block below by high-strength bolts, with a cylinder head gasket in between to ensure a seal; and casting molds are used in the production process of the cylinder head.

[0003] In casting molds, the temperature is highest at the location corresponding to the mold cavity, while the temperature is relatively lower at locations farther away from the mold cavity. Existing mold cooling systems consist of numerous intricate cooling pipes, which cannot provide zoned cooling based on the heat distribution of the mold, and are difficult to repair when the cooling pipes malfunction. Therefore, how to improve existing mold cooling systems to overcome these problems is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] One of the objectives of this application is to provide a tractor cylinder head casting mold with zoned controllable cooling.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a zoned controllable cooling casting mold for a tractor cylinder head, comprising a mold body and a cover plate. The mold body has a cavity for forming the tractor cylinder head. A first water channel and a second water channel are provided on the outer side of the mold body. The first water channel is located next to the cavity, and the second water channel corresponds to the cavity. The cover plate is detachably installed on the outer side of the mold body, and the cover plate, the first water channel, and the second water channel cooperate to form a first cooling zone and a second cooling zone, respectively. Both the first cooling zone and the second cooling zone are adapted to allow cooling medium to enter and exit to achieve cooling and temperature reduction of the mold body. The input ends of the first cooling zone and the second cooling zone are provided with regulating valves for controlling the flow rate of the cooling medium.

[0006] Preferably, the first water channel has a pair and a straight structure; the second water channel is arranged in a reciprocating curved shape, thereby increasing the flow path length of the cooling medium on the mold body.

[0007] Preferably, the mold body is provided with a water inlet trough communicating with the middle of the second cooling zone, so that the cooling medium is suitable to enter from the water inlet trough and be discharged from both ends of the second cooling zone.

[0008] Preferably, the mold body is provided with a plurality of water inlet grooves and drainage grooves that communicate with the second cooling zone, and the water inlet grooves and drainage grooves are arranged alternately at intervals, and adjacent water inlet grooves and drainage grooves cooperate to form a plurality of recirculation cooling zones in the second cooling zone.

[0009] Preferably, the second water channel is provided with multiple heat dissipation components, each including multiple heat-conducting fins, which are adapted to increase the contact area between the second cooling zone and the cooling medium.

[0010] Preferably, multiple heat-conducting fins located in the same section are disposed on both sides of the interior of the second water channel, and the heat-conducting fins on both sides are arranged alternately and cooperate with each other to form a reciprocating curved flow channel.

[0011] Preferably, the heat-conducting fins located on the same side in the second cooling zone are integrally formed on the connecting rod, and the connecting rod is detachably installed in the second cooling zone.

[0012] Preferably, water guide pipes are installed at the ends of both the first cooling zone and the second cooling zone, and retaining rings are provided at the ends of the water guide pipes. The mold body and the cover plate are provided with retaining grooves that cooperate with the retaining rings.

[0013] Compared with the prior art, the beneficial effects of this application are as follows: This invention allows for flexible adjustment of the cooling medium flow ratio between the first and second cooling zones according to actual production needs through the control of the regulating valve, thereby achieving the effect of zoned cooling control. In addition, after removing the cover plate, the first and second water channels can be exposed, which facilitates the cleaning of dirt inside them and the repair of any faults, further improving the convenience of maintenance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the mold and product structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the disassembly of the cover plate and mold body of this utility model.

[0017] Figure 4 This is a schematic diagram illustrating the flow principle of cooling water when cooling the mold of this utility model.

[0018] Figure 5 This is a schematic diagram illustrating the principle of the cooling water flow method of this utility model.

[0019] Figure 6This is a schematic diagram illustrating the principle of the second cooling water flow mode of this utility model.

[0020] Figure 7 This is a schematic diagram of the heat-conducting fins and flow channel structure of this utility model.

[0021] Figure 8 This is a schematic diagram of the integrated structure of the guide fins and connecting rod of this utility model.

[0022] Figure 9 This is a schematic diagram of the water pipe installation structure of this utility model.

[0023] In the diagram: 1. Mold body; 2. Mold body; 201. Cavity; 3. Cover plate; 4. Water guide pipe; 5. Tractor cylinder head; 6. First cooling zone; 7. Second cooling zone; 8. First water channel; 9. Second water channel; 10. Water inlet groove; 11. Drain groove; 12. Return cooling zone; 13. Heat-conducting fins; 14. Guide channel; 15. Connecting rod; 16. Slot; 17. Snap ring. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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 should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] One preferred embodiment of this application, such as Figures 1 to 9 As shown, a zoned controllable cooling casting mold for a tractor cylinder head includes a mold body 2 and a cover plate 3. The mold body 2 (which includes an upper mold and a lower mold) is installed inside the mold body 1, and the mold body 2 has a cavity 201 for forming the tractor cylinder head 5 product. Figure 3 and Figure 4As shown, a first water channel 8 and a second water channel 9 are provided on the outer side of the mold body 2. The first water channel 8 is located next to the cavity 201, and the second water channel 9 is located corresponding to the cavity 201. The cover plate 3 can be detachably installed on the outer side of the mold body 2 by bolts. After the cover plate 3 is installed, it can fit and seal the sides of the first water channel 8 and the second water channel 9, thereby forming the first cooling zone 6 and the second cooling zone 7 respectively. Regulating valves can be installed at the input ends of the first cooling zone 6 and the second cooling zone 7.

[0028] It is understandable that, such as Figure 5 As shown, during mold cooling, a cooling medium (preferably cooling water, but gas can also be used) is introduced into the input ends of the first cooling zone 6 and the second cooling zone 7. The cooling medium absorbs heat and is discharged from the output end, thus cooling the mold. The regulating valve controls the flow rate of the cooling medium. It should be noted that the second cooling zone 7 corresponds to the cavity 201, therefore it has the highest temperature and requires greater cooling intensity. This is achieved by increasing the water flow rate to the second cooling zone 7 through the regulating valve, resulting in a faster cooling rate. The first cooling zone 6, on the other hand, cools the area near the cavity 201, where the temperature is relatively low, allowing for a smaller flow rate adjustment.

[0029] Therefore, by controlling the regulating valve, the flow ratio of the cooling medium in the first cooling zone 6 and the second cooling zone 7 can be flexibly adjusted according to actual production needs, thereby achieving the effect of zoned cooling control. Furthermore, by removing the cover plate 3, the first water channel 8 and the second water channel 9 can be exposed, facilitating the cleaning of internal dirt and the repair of malfunctions (such as blockages), further improving maintenance convenience. It should be noted that the cooling system designed in this application is preferably located in the upper mold, because the lower mold also contains multiple ejector pin structures and a slider demolding structure, which may interfere with the installation design of the cooling system.

[0030] As a further description of the above embodiments: such as Figure 4 As shown, the first water channel 8 preferably adopts a pair and a straight structure, that is, the first water channel 8 is located on both sides of the second water channel 9, and the second water channel 9 is arranged in a reciprocating curved shape (e.g., serpentine, S-shaped bend). The purpose is to increase the flow path length of the cooling medium on the mold body 2, thereby increasing the cooling range of the second cooling zone 7, so that the second water channel 9 can cover the area to be cooled as much as possible, so as to achieve sufficient cooling of the cavity 201.

[0031] Based on the above embodiments, the following problems may exist during the cooling process: Figure 4As shown, cooling water enters from the left end of the second cooling zone 7 and exits from the right end. Due to the long path of the second water channel 9, the temperature of the cooling water rises continuously as it flows, and the cooling capacity gradually decreases. This causes the temperature near the input end of the mold to drop faster, while the temperature near the output end drops slower, resulting in uneven cooling of the mold and affecting the cooling efficiency and the quality of the finished product.

[0032] Therefore, in order to solve the above-mentioned technical problems, this example provides multiple methods for the entry and exit of cooling water, including but not limited to the following two: Method 1: For example Figure 5 As shown, the mold body 2 is provided with a water inlet trough 10 that communicates with the middle of the second cooling zone 7. It can be understood that the cooling water enters the middle of the second cooling zone 7 from the water inlet trough 10 and then exits from both ends of the second cooling zone 7. This method enables the cooling water to flow bidirectionally within the second cooling zone 7, thereby effectively balancing the temperature distribution of the cooling water and reducing the problem of a large temperature difference between the input and output ends when flowing in one direction.

[0033] Method 2: For example Figure 6 As shown, the mold body 2 is provided with multiple water inlet channels 10 and drainage channels 11 that communicate with the second cooling zone 7. The water inlet channels 10 and drainage channels 11 are arranged alternately. It can be understood that the cooling water enters the second cooling zone 7 from the water inlet channel 10 and flows a certain distance before ( Figure 6 (In the direction of the arrow), the water will be discharged and returned from the adjacent drain trough 11. That is, the adjacent inlet trough 10 and drain trough 11 work together to divide the second cooling zone 7 into multiple return cooling zones 12. Each return cooling zone 12 can independently circulate cooling, thereby further optimizing the temperature distribution of the cooling medium. In this way, the flow path of the cooling water within each return cooling zone 12 is relatively short, avoiding the problem of cooling capacity attenuation caused by excessively long paths. This further improves the efficiency and uniformity of mold cooling.

[0034] It should be noted that using Method 1 effectively divides the second cooling zone 7 into two cooling zones, resulting in a simple structure and low cost, suitable for use with smaller mold sizes. While Method 2 has a more complex structure and increased manufacturing costs, it demonstrates significant advantages when dealing with larger mold sizes or more precise cooling requirements. Therefore, those skilled in the art can choose the appropriate method based on the specific circumstances.

[0035] In one embodiment of this application, such as Figure 7As shown, multiple heat dissipation components can be installed within the second water channel 9. These components include multiple heat-conducting fins 13, which increase the contact area between a portion of the second cooling zone 7 and the cooling medium. For example, assuming a certain location on the tractor cylinder head 5 is thicker, the area accumulates the most heat. Therefore, heat-conducting fins 13 can be placed at this location to enhance heat dissipation in that area.

[0036] Preferably, multiple heat-conducting fins 13 located in the same section are disposed on both sides of the interior of the second water channel 9, and the heat-conducting fins 13 on both sides are arranged in a staggered manner, and the heat-conducting fins 13 on both sides cooperate with each other to form a reciprocating curved flow channel 14. Figure 7 The arrows indicate the direction of cooling water flow, forming an S-shape. This is to further increase the length of the cooling water flow path at this point, allowing for more thorough heat exchange and thus improving heat dissipation efficiency.

[0037] Further optimization, such as Figure 8 As shown, the heat-conducting fins 13 located on the same side within the second cooling zone 7 are integrally mounted on the connecting rod 15. The connecting rod 15 is detachably installed in the second cooling zone 7; for example, it can be installed and removed by engaging screws. This design allows for convenient cleaning or replacement of the heat-conducting fins 13. Furthermore, this modular design facilitates flexible adjustment of the number and distribution of the heat-conducting fins 13 according to different mold structures and cooling requirements, further enhancing the targetedness and efficiency of the cooling effect.

[0038] In one embodiment of this application, such as Figure 2 and Figure 3 As shown, water guide pipes 4 need to be connected at the ends of the two cooling zones to allow cooling water to enter and exit. The water guide pipes 4 can be installed in the following manner: Figure 9 As shown, a retaining ring 17 is provided at the end where the water guide pipe 4 is installed, and retaining grooves 16 that mate with the retaining ring 17 are provided on both the mold body 2 and the cover plate 3. That is, after the cover plate 3 and the mold body 2 are installed, the retaining ring 17 is just locked into the retaining groove 16, thereby realizing the installation of the water guide pipe 4. Of course, an elastic sealing ring is added to the contact surface between the retaining ring 17 and the retaining groove 16 to improve the sealing performance. It can be seen that the installation of the cover plate 3 itself can also realize the installation of the water guide pipe 4, thereby simplifying the installation steps of the water guide pipe 4 and improving the installation efficiency. Of course, the water guide pipe 4 can also be a quick connector, in which case the end of the quick connector away from the mold can be quickly connected to an external water pipe.

[0039] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A tractor cylinder head casting mold with zoned controllable cooling, characterized in that, include: A mold body having a cavity for forming a tractor cylinder head; a first water channel and a second water channel are provided on the outer side of the mold body, the first water channel being located beside the cavity, and the second water channel corresponding to the cavity; and A cover plate is detachably installed on the outside of the mold body, and the cover plate cooperates with the first water channel and the second water channel to form a first cooling zone and a second cooling zone respectively; both the first cooling zone and the second cooling zone are adapted to introduce and discharge cooling medium to achieve cooling and temperature reduction of the mold body, and the input end of the first cooling zone and the second cooling zone is provided with a regulating valve for controlling the flow of the cooling medium.

2. The tractor cylinder head casting mold with zoned controllable cooling as described in claim 1, characterized in that: The first water channel has a pair of straight structures; the second water channel is arranged in a reciprocating curved shape, thereby increasing the flow path length of the cooling medium on the mold body.

3. The tractor cylinder head casting mold with zoned controllable cooling as described in claim 1 or 2, characterized in that: The mold body is provided with a water inlet trough that communicates with the middle of the second cooling zone, so that the cooling medium is suitable to enter from the water inlet trough and be discharged from both ends of the second cooling zone.

4. The tractor cylinder head casting mold with zoned controllable cooling as described in claim 1 or 2, characterized in that: The mold body is provided with a plurality of water inlet grooves and drainage grooves that communicate with the second cooling zone, and the water inlet grooves and drainage grooves are arranged alternately at intervals. Adjacent water inlet grooves and drainage grooves cooperate to form a plurality of recirculation cooling zones in the second cooling zone.

5. The tractor cylinder head casting mold with zoned controllable cooling as described in claim 1 or 2, characterized in that: The second water channel is provided with multiple heat dissipation components, each including multiple heat-conducting fins, which are adapted to increase the contact area between the second cooling zone and the cooling medium.

6. The tractor cylinder head casting mold with zoned controllable cooling as described in claim 5, characterized in that: Multiple heat-conducting fins located in the same section are disposed on both sides of the interior of the second water channel, and the heat-conducting fins on both sides are arranged alternately and cooperate with each other to form a reciprocating curved flow channel.

7. The tractor cylinder head casting mold with zoned controllable cooling as described in claim 6, characterized in that: The heat-conducting fins located on the same side in the second cooling zone are integrally mounted on the connecting rod, and the connecting rod is detachably installed in the second cooling zone.

8. The tractor cylinder head casting mold with zoned controllable cooling as described in claim 7, characterized in that: Water guide pipes are installed at the ends of both the first cooling zone and the second cooling zone. The ends of the water guide pipes are provided with retaining rings. The mold body and the cover plate are provided with retaining grooves that cooperate with the retaining rings.

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