Cylinder cover die with bolt hole boss

Abstract

The utility model discloses a cylinder cover mould with a bolt hole boss, which comprises a mould frame, a bottom mould, a left end mould, a right end mould, a front side mould, a rear side mould and a feeding component, the rear side mould comprises a feeding bag and the bolt hole boss, and the mould frame comprises a bottom sub-frame; the bottom die is installed in the middle of the bottom sub-frame, the left end die, the right end die, the front side die and the rear side die are all installed on the bottom sub-frame, a cavity is defined by the top of the bottom die, the right side of the left end die, the left side of the right end die, the rear side of the front side die and the front side of the rear side die, the feeding assembly is arranged at the top of the rear side die, and the feeding bag is located above a bolt hole boss. And a feeding channel is arranged between the feeding bag and the bolt hole boss. According to the scheme, the problem that in a traditional cylinder cover mold, a bolt hole boss is often arranged at the position relatively far away from a feeding bag, so that a bolt hole area is difficult to be filled with molten aluminum provided by the feeding bag when the molten aluminum is solidified and shrunk, and consequently shrinkage cavities are prone to occurring in bolt holes of a cylinder cover casting is solved.

Description

Technical Field

[0001] This utility model relates to the field of cylinder head mold technology, specifically a cylinder head mold with bolt hole bosses. Background Technology

[0002] In the current cylinder head manufacturing field, the design and production technology of cylinder head molds play a crucial role. Traditional cylinder head mold structures mainly include key components such as cavities, shrinkage liner, and bolt hole bosses. During production, molten aluminum is injected into the mold cavity. Through precise control of the filling process, the aluminum cools and gradually solidifies within the cavity, thus forming the basic shape and dimensions of the cylinder head. When the aluminum fills the entire cavity and begins to solidify, sufficient molten metal needs to be replenished in time to avoid voids or shrinkage cavities due to the volume shrinkage of the metal during solidification. In cylinder head mold design, the shrinkage liner is usually set as a replenishment source during the solidification process to compensate for the volume reduction caused by solidification. However, in traditional cylinder head molds, bolt hole bosses are often located relatively far from the shrinkage liner. Because the fluidity of the aluminum gradually decreases during solidification, and the shrinkage liner's replenishment capacity is limited, the bolt hole area is difficult to be adequately filled with molten aluminum during solidification shrinkage, leading to shrinkage cavities easily appearing inside the bolt holes of the cylinder head casting. Utility Model Content

[0003] To address the aforementioned shortcomings, this utility model proposes a cylinder head mold with bolt hole bosses. The purpose is to solve the problem that in traditional cylinder head molds, bolt hole bosses are often located at a position relatively far from the feeding pot, making it difficult for the bolt hole area to be adequately filled by the feeding pot when the aluminum liquid solidifies and shrinks. This results in the problem of shrinkage cavities easily appearing inside the bolt holes of the cylinder head casting.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A cylinder head mold with bolt hole bosses includes a mold frame, a bottom mold, a left end mold, a right end mold, a front side mold, a rear side mold, and a feeding assembly. The rear side mold includes a shrinkage pack and bolt hole bosses. The mold frame includes a bottom subframe.

[0006] The bottom mold is installed in the middle of the bottom sub-frame. The left end mold, the right end mold, the front mold, and the rear mold are all installed on the bottom sub-frame. The left end mold and the right end mold are symmetrically distributed left and right, and the front mold and the rear mold are symmetrically distributed front and back. The top of the bottom mold, the right side of the left end mold, the left side of the right end mold, the rear side of the front mold, and the front side of the rear mold form a cavity. The feeding assembly is located on the top of the rear mold and is used to feed the molten aluminum into the cavity. The shrinkage pack is located above the bolt hole boss. A shrinkage channel is provided between the shrinkage pack and the bolt hole boss. The length L of the shrinkage channel is 93-97mm, and the width W of the shrinkage channel is 16-17mm.

[0007] Preferably, the feeding assembly includes an inclined flow channel and a hopper; the inclined flow channel is arranged in a left-right direction, the right end of the inclined flow channel is connected to the left side of the hopper, and the top of the hopper is connected to the top of the rear mold.

[0008] Preferably, the mold frame further includes a left gantry sub-frame and a right gantry sub-frame; the left gantry sub-frame and the right gantry sub-frame are respectively installed on the left and right sides of the bottom sub-frame, the left end mold is located inside the left gantry sub-frame, the right end mold is located inside the right gantry sub-frame, and the front side mold and the rear side mold are both located between the left gantry sub-frame and the right gantry sub-frame.

[0009] Preferably, it further includes a first main slide rail, two first auxiliary slide rails, a first main slider, two first auxiliary sliders, a second main slide rail, two second auxiliary slide rails, a second main slider, and two second auxiliary sliders;

[0010] The first main slide rail and the two first auxiliary slide rails are both arranged on the left side of the bottom sub-frame in the left-right direction. The first main slide rail is located between the two first auxiliary slide rails. The bottom of the left end mold is equipped with the first main slider and the two first auxiliary sliders. The first main slider is slidably mounted on the first main slide rail, and the two first auxiliary sliders are slidably mounted on the corresponding first auxiliary slide rails in the left-right direction.

[0011] The second main slide rail and the two second auxiliary slide rails are both arranged in the left-right direction on the right side of the bottom sub-frame. The second main slide rail is located between the two second auxiliary slide rails. The bottom of the right end mold is equipped with the second main slider and the two second auxiliary sliders. The second main slider is slidably mounted on the second main slide rail, and the two second auxiliary sliders are slidably mounted on the corresponding second auxiliary slide rail.

[0012] Preferably, it also includes a third main slide rail, two third auxiliary slide rails, a third main slider, two third auxiliary sliders, a fourth main slide rail, two fourth auxiliary slide rails, a fourth main slider, and two fourth auxiliary sliders;

[0013] The third main slide rail and the two third auxiliary slide rails are both arranged in the front direction of the bottom sub-frame. The third main slide rail is located between the two third auxiliary slide rails. The bottom of the front mold is equipped with the third main slider and the two third auxiliary sliders. The third main slider is slidably mounted on the third main slide rail, and the two third auxiliary sliders are slidably mounted on the corresponding third auxiliary slide rail.

[0014] The fourth main slide rail and the two fourth auxiliary slide rails are both arranged along the front-back direction on the rear side of the bottom sub-frame. The fourth main slide rail is located between the two fourth auxiliary slide rails. The bottom of the rear mold is equipped with the fourth main slider and the two fourth auxiliary sliders. The fourth main slider is slidably mounted on the fourth main slide rail, and the two fourth auxiliary sliders are slidably mounted on their respective fourth auxiliary slide rails.

[0015] Preferably, it further includes a top plate and four top rods, all of which are arranged in the vertical direction; all four top rods are movably inserted through the bottom sub-frame, the upper ends of the four top rods are connected to the bottom mold, and the lower ends of the four top rods are connected to the top plate.

[0016] Preferably, it also includes a mounting bracket, which is fixed to the front side of the front mold.

[0017] The technical solution provided by this utility model can include the following beneficial effects:

[0018] In this solution, a feeding channel is set between the feeding package and the bolt hole boss. When the aluminum liquid solidifies in the cavity, the aluminum liquid in the feeding package can be directly transferred to the bolt hole boss through the feeding channel, so that the bolt hole boss can be fully filled by the aluminum liquid when the aluminum liquid solidifies and shrinks, thus preventing shrinkage cavities from appearing inside the bolt holes of the cylinder head casting. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a cylinder head mold with bolt hole bosses;

[0020] Figure 2 This is a schematic diagram of one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of one embodiment of the present invention;

[0022] Figure 4This is a left view of a cylinder head mold with bolt hole bosses;

[0023] Figure 5 This is a right view of a cylinder head mold with bolt hole bosses;

[0024] Figure 6 This is a schematic diagram of one embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of one embodiment of the present invention.

[0026] The components include: 1. Mold frame; 2. Bottom mold; 3. Left end mold; 4. Right end mold; 5. Front mold; 6. Rear mold; 7. Feeding assembly; 8. Cavity; 9. Compensation channel; 10. Mounting bracket; 11. Bottom sub-frame; 12. Left portal sub-frame; 13. Right portal sub-frame; 14. First main slide rail; 15. First auxiliary slide rail; 16. First main slider; 17. First auxiliary slider; 18. Second main slide rail; 19. Second auxiliary slide rail; 20. ... 21. Second main slide block; 22. Third main slide rail; 23. Third secondary slide rail; 24. Third main slide block; 25. Third secondary slide block; 26. Fourth main slide rail; 27. Fourth secondary slide rail; 28. Fourth main slide block; 29. ​​Fourth secondary slide block; 30. Top plate; 31. Top rod; 61. Compensating package; 62. Bolt hole boss; 71. Inclined flow channel; 72. Casting hopper; L, Length of compensating channel; W, Width of compensating channel. Detailed Implementation

[0027] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] In the description of this utility model, it should be understood that the terms "length", "middle", "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "assembly," and "connection" 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 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.

[0031] A cylinder head mold with bolt hole bosses includes a mold frame 1, a bottom mold 2, a left end mold 3, a right end mold 4, a front side mold 5, a rear side mold 6, and a feeding assembly 7. The rear side mold 6 includes a shrinkage pack 61 and bolt hole bosses 62. The mold frame 1 includes a bottom sub-frame 11.

[0032] The bottom mold 2 is installed in the middle of the bottom sub-frame 11. The left end mold 3, the right end mold 4, the front mold 5, and the rear mold 6 are all installed on the bottom sub-frame 11. The left end mold 3 and the right end mold 4 are symmetrically distributed from left to right, and the front mold 5 and the rear mold 6 are symmetrically distributed from front to back. The top of the bottom mold 2, the right side of the left end mold 3, the left side of the right end mold 4, the rear side of the front mold 5, and the front side of the rear mold 6 form a cavity 8. The feeding assembly 7 is set on the top of the rear mold 6. The feeding assembly 7 is used to feed the aluminum liquid into the cavity 8. The shrinkage pack 61 is located above the bolt hole boss 62. A shrinkage channel 9 is provided between the shrinkage pack 61 and the bolt hole boss 62. The length L of the shrinkage channel 9 is 93-97mm, and the width W of the shrinkage channel 9 is 16-17mm.

[0033] One type of cylinder head mold with bolt hole bosses in this solution, such as... Figure 1-3As shown, since the top of the bottom mold 2, the right side of the left mold 3, the left side of the right mold 4, the rear side of the front mold 5, and the front side of the rear mold 6 form the cavity 8, when the cylinder head needs to be manufactured, the worker feeds the molten aluminum into the cavity 8 through the feeding assembly 7 until the molten aluminum fills the entire cavity 8. The molten aluminum cools and gradually solidifies in the cavity 8 to achieve efficient molding of the cylinder head. During the solidification process of the molten aluminum in the cavity 8, since a feeding channel 9 is provided between the shrinkage pack 61 and the bolt hole boss 62, in this embodiment, the length L of the feeding channel 9 is 97mm and the width W is 16.6mm. The molten aluminum in the shrinkage pack 61 can be directly transferred to the bolt hole boss 62 through the feeding channel 9, so that the bolt hole boss 62 can be fully filled with molten aluminum when the molten aluminum solidifies and shrinks, preventing shrinkage cavities from appearing inside the bolt holes of the cylinder head casting. To further explain, since the length L of the feeding channel 9 is 93-97mm, the molten aluminum flows to the area that needs replenishment within an appropriate time, without causing excessive flow resistance or slow flow speed due to excessive length. Since the width W of the feeding channel 9 is 16-17mm, it ensures sufficient molten aluminum flow to replenish the shrinkage during solidification, without causing poor flow or blockage due to excessive narrowness.

[0034] Preferably, the feeding assembly 7 includes an inclined flow channel 71 and a hopper 72; the inclined flow channel 71 is arranged in a left-right direction, the right end of the inclined flow channel 71 is connected to the left side of the hopper 72, and the top of the hopper 72 is connected to the top of the rear mold 6. In this embodiment, as... Figure 1 As shown, before using the cylinder head mold, the operator rotates the entire cylinder head mold 90 degrees and pours molten aluminum into the inclined flow channel 71. The molten aluminum flows into the pouring hopper 72 under the guiding effect of the inclined flow channel 71, filling the entire pouring hopper 72. When it is necessary to use the cylinder head mold to make the cylinder head, the operator rotates the entire cylinder head mold 90 degrees again, allowing the molten aluminum in the pouring hopper 72 to flow smoothly into the cavity 8 under gravity.

[0035] Preferably, the mold frame 1 further includes a left portal-shaped sub-frame 12 and a right portal-shaped sub-frame 13; the left portal-shaped sub-frame 12 and the right portal-shaped sub-frame 13 are respectively installed on the left and right sides of the bottom sub-frame 11, the left end mold 3 is located inside the left portal-shaped sub-frame 12, the right end mold 4 is located inside the right portal-shaped sub-frame 13, and the front mold 5 and the rear mold 6 are both located between the left portal-shaped sub-frame 12 and the right portal-shaped sub-frame 13. In this embodiment, as shown... Figure 1-2As shown, with the cooperation of the bottom sub-frame 11, the left portal sub-frame 12 and the right portal sub-frame 13, the installation of the bottom mold 2, the left end mold 3, the right end mold 4, the front mold 5 and the rear mold 6 is more stable.

[0036] Preferably, it also includes a first main slide rail 14, two first auxiliary slide rails 15, a first main slider 16, two first auxiliary sliders 17, a second main slide rail 18, two second auxiliary slide rails 19, a second main slider 20, and two second auxiliary sliders 21;

[0037] The first main slide rail 14 and the two first auxiliary slide rails 15 are both arranged on the left side of the bottom sub-frame 11 in the left-right direction. The first main slide rail 14 is located between the two first auxiliary slide rails 15. The bottom of the left end mold 3 is equipped with the first main slider 16 and the two first auxiliary sliders 17. The first main slider 16 is slidably mounted on the first main slide rail 14, and the two first auxiliary sliders 17 are slidably mounted on the corresponding first auxiliary slide rails 15.

[0038] The second main slide rail 18 and the two second auxiliary slide rails 19 are both arranged in the left-right direction on the right side of the bottom sub-frame 11. The second main slide rail 18 is located between the two second auxiliary slide rails 19. The bottom of the right end mold 4 is equipped with the second main slider 20 and the two second auxiliary sliders 21. The second main slider 20 is slidably mounted on the second main slide rail 18, and the two second auxiliary sliders 21 are slidably mounted on the corresponding second auxiliary slide rails 19.

[0039] In this embodiment, as Figure 4-5 As shown, the left-end mold 3 moves left and right through the cooperation of the first main slide rail 14, the two first auxiliary slide rails 15, the first main slider 16, and the two first auxiliary sliders 17, facilitating the installation and disassembly of the left-end mold 3 during the assembly of the cylinder head mold. Similarly, the right-end mold 4 moves left and right through the cooperation of the second main slide rail 18, the two second auxiliary slide rails 19, the second main slider 20, and the two second auxiliary sliders 21, facilitating the installation and disassembly of the right-end mold 4 during the assembly of the cylinder head mold.

[0040] Preferably, it also includes a third main slide rail 22, two third auxiliary slide rails 23, a third main slider 24, two third auxiliary sliders 25, a fourth main slide rail 26, two fourth auxiliary slide rails 27, a fourth main slider 28, and two fourth auxiliary sliders 29.

[0041] The third main slide rail 22 and the two third auxiliary slide rails 23 are both arranged in the front direction of the bottom sub-frame 11. The third main slide rail 22 is located between the two third auxiliary slide rails 23. The bottom of the front mold 5 is equipped with the third main slider 24 and the two third auxiliary sliders 25. The third main slider 24 is slidably mounted on the third main slide rail 22, and the two third auxiliary sliders 25 are slidably mounted on the corresponding third auxiliary slide rails 23.

[0042] The fourth main slide rail 26 and the two fourth auxiliary slide rails 27 are both arranged along the front-back direction on the rear side of the bottom sub-frame 11. The fourth main slide rail 26 is located between the two fourth auxiliary slide rails 27. The bottom of the rear mold 6 is equipped with the fourth main slider 28 and the two fourth auxiliary sliders 29. The fourth main slider 28 is slidably mounted on the fourth main slide rail 26, and the two fourth auxiliary sliders 27 are slidably mounted on the corresponding fourth auxiliary slide rails 29.

[0043] In this embodiment, as Figure 6-7 As shown, the front mold 5 moves back and forth through the cooperation of the third main slide rail 22, the two third auxiliary slide rails 23, the third main slider 24, and the two third auxiliary sliders 25, facilitating the installation and disassembly of the front mold 5 during the assembly of the cylinder head mold. Similarly, the rear mold 6 moves back and forth through the cooperation of the fourth main slide rail 26, the two fourth auxiliary slide rails 27, the fourth main slider 28, and the two fourth auxiliary sliders 29, facilitating the installation and disassembly of the rear mold 6 during the assembly of the cylinder head mold.

[0044] Preferably, it further includes a top plate 30 and four push rods 31, all of which are arranged vertically; all four push rods 31 are movably inserted through the bottom sub-frame 11, with the upper ends of each push rod 31 connected to the bottom mold 2 and the lower ends of each push rod 31 connected to the top plate 30. In this embodiment, as... Figure 6 As shown, the cylinder head mold also includes a motor (not shown in the figure), and the drive end of the motor is connected to the top plate 30. After the molten aluminum in the cavity 8 solidifies and forms the cylinder head, the cylinder head needs to be demolded. At this time, the motor can be started, and the motor drives the top plate 30 to move upward, thereby driving the four ejector rods 31 to move upward, thereby driving the bottom mold 2 to move upward, thus realizing the demolding of the cylinder head.

[0045] Preferably, it also includes a mounting bracket 10, which is fixed to the front side of the front mold 5. In this embodiment, as... Figure 1As shown, when casting cylinder head castings using the cylinder head mold, the cylinder head mold needs to be installed on a casting machine (not shown in the figure) to cast the cylinder head castings. The mounting bracket 10 is provided to facilitate the installation of the entire cylinder head mold onto the casting machine.

[0046] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A cylinder head mold with bolt hole bosses, characterized in that: It includes a mold frame, a bottom mold, a left end mold, a right end mold, a front side mold, a rear side mold, and a feeding assembly. The rear side mold includes a shrinkage pack and bolt hole bosses. The mold frame includes a bottom sub-frame. The bottom mold is installed in the middle of the bottom sub-frame. The left end mold, the right end mold, the front mold, and the rear mold are all installed on the bottom sub-frame. The left end mold and the right end mold are symmetrically distributed left and right, and the front mold and the rear mold are symmetrically distributed front and back. The top of the bottom mold, the right side of the left end mold, the left side of the right end mold, the rear side of the front mold, and the front side of the rear mold form a cavity. The feeding assembly is located on the top of the rear mold and is used to feed the molten aluminum into the cavity. The shrinkage pack is located above the bolt hole boss. A shrinkage channel is provided between the shrinkage pack and the bolt hole boss. The length L of the shrinkage channel is 93-97mm, and the width W of the shrinkage channel is 16-17mm.

2. A cylinder head mold with bolt hole bosses according to claim 1, characterized in that: The feeding assembly includes an inclined flow channel and a pouring hopper; The inclined flow channel is arranged in the left-right direction, the right end of the inclined flow channel is connected to the left side of the hopper, and the top of the hopper is connected to the top of the rear mold.

3. A cylinder head mold with bolt hole bosses according to claim 1, characterized in that: The mold frame also includes a left portal frame and a right portal frame; The left and right portal sub-frames are respectively installed on the left and right sides of the bottom sub-frame. The left end mold is located inside the left portal sub-frame, the right end mold is located inside the right portal sub-frame, and the front and rear molds are both located between the left and right portal sub-frames.

4. A cylinder head mold with bolt hole bosses according to claim 3, characterized in that: It also includes a first main slide rail, two first auxiliary slide rails, a first main slider, two first auxiliary sliders, a second main slide rail, two second auxiliary slide rails, a second main slider, and two second auxiliary sliders; The first main slide rail and the two first auxiliary slide rails are both arranged on the left side of the bottom sub-frame in the left-right direction. The first main slide rail is located between the two first auxiliary slide rails. The bottom of the left end mold is equipped with the first main slider and the two first auxiliary sliders. The first main slider is slidably mounted on the first main slide rail, and the two first auxiliary sliders are slidably mounted on the corresponding first auxiliary slide rails in the left-right direction. The second main slide rail and the two second auxiliary slide rails are both arranged in the left-right direction on the right side of the bottom sub-frame. The second main slide rail is located between the two second auxiliary slide rails. The bottom of the right end mold is equipped with the second main slider and the two second auxiliary sliders. The second main slider is slidably mounted on the second main slide rail, and the two second auxiliary sliders are slidably mounted on the corresponding second auxiliary slide rail.

5. A cylinder head mold with bolt hole bosses according to claim 3, characterized in that: It also includes a third main slide rail, two third auxiliary slide rails, a third main slider, two third auxiliary sliders, a fourth main slide rail, two fourth auxiliary slide rails, a fourth main slider, and two fourth auxiliary sliders; The third main slide rail and the two third auxiliary slide rails are both arranged in the front direction of the bottom sub-frame. The third main slide rail is located between the two third auxiliary slide rails. The bottom of the front mold is equipped with the third main slider and the two third auxiliary sliders. The third main slider is slidably mounted on the third main slide rail, and the two third auxiliary sliders are slidably mounted on the corresponding third auxiliary slide rail. The fourth main slide rail and the two fourth auxiliary slide rails are both arranged along the front-back direction on the rear side of the bottom sub-frame. The fourth main slide rail is located between the two fourth auxiliary slide rails. The bottom of the rear mold is equipped with the fourth main slider and the two fourth auxiliary sliders. The fourth main slider is slidably mounted on the fourth main slide rail, and the two fourth auxiliary sliders are slidably mounted on their respective fourth auxiliary slide rails.

6. A cylinder head mold with bolt hole bosses according to claim 1, characterized in that: It also includes a top plate and four top rods, all of which are arranged in the vertical direction; All four push rods are movably inserted into the bottom sub-frame, with the upper ends of the four push rods connected to the bottom mold and the lower ends of the four push rods connected to the top plate.

7. A cylinder head mold with bolt hole bosses according to claim 1, characterized in that: It also includes a mounting bracket, which is fixed to the front side of the front mold.

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