An automobile valve seal mold and a mold hole generating device

Abstract

The utility model discloses a kind of automobile valve sealing element mould and a die hole generating device, it is related to vehicle parts manufacturing field, automobile valve sealing element mould includes mould body, recess is set on the mould body, the recess is annularly arranged on the mould body, and the side of the recess is formed with abutting face on the mould body;Die hole is arranged in the recess, the depth of the die hole is less than the distance between the recess bottom and the abutting face, and die core is installed in the die hole, by setting the depth of die hole less than the distance between recess bottom and abutting face, the problem of collision in the process of closing mould existing in prior art can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts manufacturing, and in particular to a mold for automotive valve seals and a mold hole generating device. Background Technology

[0002] In the production of automotive valve seals, precision injection molds are key equipment for achieving high precision and consistency. Existing sealing molds typically employ a split structure, with an annular groove on the mold body for mounting the mold core. However, such molds have a significant drawback in long-term use: rigid collisions easily occur between the mold core and the mold body's contact surfaces during mold closing. Specifically, the depth of the mold hole in traditional molds is usually equal to the distance from the bottom of the groove to the contact surface, resulting in the mold core's end face being flush with the contact surface after installation. During mold closing, the contact surfaces of the upper and lower molds directly contact each other, causing a hard collision between the mold core's end face and the contact surface.

[0003] The industry has attempted to mitigate damage by increasing the hardness of mold steel or adding surface coatings, but these efforts have failed to fundamentally eliminate the collision mechanism. For example, existing technologies may include a mold core shear, as shown in the instruction manual. Figure 1 As shown, this structure makes it easy to damage the mold core during the post-molding process. At the same time, the influence of the mold core shearing structure is difficult to remove effectively, leading to a decrease in product yield.

[0004] To overcome this technical bottleneck, it is urgent to design a mold structure that can fundamentally avoid collisions during mold closing. Utility Model Content

[0005] This utility model provides an automotive valve sealing mold and a mold hole generating device, which can solve the problem of damage during the mold closing process in the prior art.

[0006] A mold for automotive valve seals, comprising:

[0007] A mold body, wherein a groove is provided on the mold body, the groove is arranged in a ring on the mold body, and an abutment surface is formed on one side of the mold body opposite to the groove;

[0008] A mold hole is provided in the groove, the depth of the mold hole is less than the distance between the bottom of the groove and the abutment surface, and a mold core is installed in the mold hole.

[0009] Preferably, in this embodiment of the application, the distance between the bottom of the mold hole and the abutment surface is less than the depth of the mold hole, and a thin film is formed between the mold hole and the abutment surface.

[0010] Preferably, in the embodiments of this application, the thickness of the film is 0.1 mm to 0.3 mm.

[0011] Preferably, in this embodiment of the application, a die-forming device includes:

[0012] The abutment member has an outer shape that corresponds to the shape of the groove, and one end face of the abutment member is used to form the abutment surface of the mold body;

[0013] A molded part is movably disposed on the abutment portion, and the mold hole is formed through the molded part when the automotive valve seal mold is formed;

[0014] An adjusting device is provided on the abutting member, and the forming member is connected to the adjusting device, which adjusts the length of the forming member.

[0015] Preferably, in this embodiment of the application, the molded part has a molding end, which is used to form the bottom of the mold hole;

[0016] The adjusting device controls the thickness of the film between the bottom of the formed die hole and the die abutment surface by adjusting the axial position of the formed part relative to the abutment part and changing the position of the formed end relative to the end face of the abutment part used to form the abutment surface.

[0017] Preferably, in this embodiment of the application, the adjusting device includes an adjusting screw, which is rotatably installed inside the abutment member, and one end of the adjusting screw is connected to the forming member.

[0018] Preferably, in this embodiment of the application, a driving device is provided inside the abutting member, the driving device is connected to the adjusting screw, and the driving device drives the adjusting screw to move relative to the abutting member.

[0019] Preferably, in this embodiment of the application, the driving device includes:

[0020] A drive motor is mounted on the abutment member;

[0021] A reduction mechanism is connected to the output shaft of the drive motor. The reduction mechanism is connected to the adjusting screw, and the drive motor adjusts the movement of the adjusting screw through the reduction mechanism.

[0022] The deceleration mechanism is threadedly connected to the adjusting screw.

[0023] Preferably, in this embodiment of the application, the deceleration mechanism includes:

[0024] A threaded rod, which is rotatably connected to the output shaft of the drive motor, and the threaded rod is perpendicular to the adjusting screw;

[0025] A turntable is sleeved on the adjusting screw, the turntable is threadedly connected to the adjusting screw, the outer edge of the turntable is connected to the threaded rod, and the threaded rod rotates on the turntable.

[0026] Preferably, in this embodiment of the application, the drive motor includes a servo motor.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] 1. By setting a thin film of a specific thickness between the mold core end face and the abutment surface as a buffer layer, direct hard collision between the mold core end face and the upper mold abutment surface is avoided during the mold closing process. This film design allows the abutment surfaces of the upper and lower molds to contact and compact the film first, while the mold core end face is effectively isolated and protected by the film, thereby significantly reducing the risk of the mold being damaged, crushed or chipped during reverse compound mold operation, and greatly improving the overall durability and service life of the mold.

[0029] 2. The dedicated die hole generation device can precisely adjust the extension length of the formed part; this high-precision adjustment capability directly and reliably controls the thickness of the film between the bottom of the die hole and the mold contact surface, ensuring that it strictly falls within the design requirement range of 0.1mm to 0.3mm, and maintains a high degree of consistency in all die holes of mass production. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of a traditional automotive valve sealing component mold.

[0032] Figure 2 Schematic diagram of the structure of the automotive valve sealing mold provided by this utility model Figure 1 ;

[0033] Figure 3 Schematic diagram of the structure of the automotive valve sealing mold provided by this utility model Figure 2 ;

[0034] Figure 4 A cross-sectional schematic diagram of the overall structure of the automotive valve sealing mold and the die hole generating device provided by this utility model;

[0035] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle;

[0036] Figure 6 This is a schematic diagram of the overall internal structure of the abutment component provided by this utility model.

[0037] Explanation of reference numerals in the attached figures:

[0038] 100. Mold body; 110. Groove; 120. Mold hole; 130. Abutment surface; 140. Film; 200. Abutment part; 300. Formed part; 310. Formed end; 400. Adjustment device; 410. Adjustment screw; 500. Drive device; 510. Drive motor; 520. Reduction mechanism; 521. Threaded rod; 522. Turntable. Detailed Implementation

[0039] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0040] like Figures 2 to 6 As shown, this utility model embodiment provides an automotive valve sealing mold, which is mainly installed on an automotive valve. The mold is configured as a mold body 100, and a groove 110 is provided in an annular shape on the mold body 100. The groove 110 is installed in conjunction with the lower mold of the automotive valve. In this embodiment, an abutment surface 130 is formed on the side of the mold body 100 opposite to the groove 110. The abutment surface 130 is installed in conjunction with the upper mold to form the entire sealing component of the automotive valve.

[0041] In the above structure, a plurality of mold holes 120 are formed within the groove 110. In this application, six mold holes 120 are arranged in a ring. The depth of each of the six mold holes 120 is less than the thickness of the bottom of the groove 110 of the mold body 100, and a mold core is installed within each mold hole 120. A certain gap is formed between the end face of the mold core and the abutment surface 130. A thin film 140 is disposed within this gap. The thickness of the thin film 140 is controlled between 0.1 mm and 0.3 mm. In this application, the thickness of the thin film 140 is preferably 0.15 mm. This design ensures that during the mold closing process, there will be no hard collision between the end face of the mold core and the abutment surface 130, as the thin film 140 provides cushioning, thereby effectively avoiding damage to the mold. Meanwhile, since the depth of the mold hole 120 is less than the distance from the bottom of the groove 110 to the abutment surface 130, the end face of the mold core will be lower than the abutment surface 130 after installation. In this way, when the mold is closed, the abutment surfaces 130 of the upper and lower molds will contact first, while the end face of the mold core is protected by the film 140, avoiding collision damage.

[0042] In this embodiment, the film 140 is formed between the bottom of the die hole 120 and the abutment surface 130.

[0043] In order to form the film 140, this application also provides a die hole generating device, which generates a die hole 120 in the groove 110 during the formation of the mold body 100, and generates a film 140 in the die hole 120.

[0044] In this embodiment, the thin film 140 is provided to facilitate the subsequent laser deburring process, so that the laser can remove the thin film 140.

[0045] To facilitate the formation of the film 140, the die hole 120 forming device includes an abutment 200. The outer shape of the abutment 200 corresponds to the shape of the groove 110, so that the abutment 200 can be accurately positioned within the groove 110 when it mates with the mold body 100. One end face of the abutment 200 is used to form the groove 110 of the mold body 100, so that the groove 110 can mate with the lower mold when the mold is closed.

[0046] The forming part 300 is movably disposed on the abutment 200, and the specific shape and size of the forming part 300 match the required die hole 120. When the automotive valve seal mold is formed, the die hole 120 is formed by the forming part 300, that is, the forming part 300 moves within the abutment 200 to extrude a die hole 120 within the groove 110.

[0047] An adjusting device 400 is disposed on the abutment member 200, and the forming member 300 is connected to the adjusting device 400. The adjusting device 400 allows adjustment of the length of movement of the forming member 300 within the abutment member 200, i.e., adjusting the distance the forming member 300 moves within the abutment member 200, thereby controlling the depth of the formed die hole 120. In this application, by precisely adjusting the length of the forming member 300, the distance from the bottom of the die hole 120 to the abutment surface 130 is made less than the depth of the die hole 120, thereby forming a thin film 140 between the die hole 120 and the abutment surface 130.

[0048] To facilitate the formation of a thin film 140, in this embodiment of the application, one end of the forming member 300 has a forming end 310, which is used to form the bottom of the mold hole 120. In this application, the forming member 300 is configured as a cylindrical structure, and the radius of the cylindrical structure is equal to the radius of the mold hole 120 formed therefrom.

[0049] The adjusting device 400 adjusts the axial position of the forming part 300 relative to the abutment 200, thereby changing the position of the forming end 310 relative to the end face of the abutment 200 used to form the abutment surface 130, in order to control the thickness of the film 140 between the bottom of the formed die hole 120 and the die abutment surface 130.

[0050] In the above-described adjustment device 400, an adjustment screw 410 is rotatably mounted within the abutment member 200, with one end of the adjustment screw 410 connected to the forming member 300. By rotating the adjustment screw 410, the forming member 300 can be pushed or pulled within the abutment member 200, thereby adjusting the length of the forming member 300 within the abutment member 200. In this embodiment, a drive device 500 is also provided within the abutment member 200. The drive device 500 is connected to the adjustment screw 410, and can drive the adjustment screw 410 to move relative to the abutment member 200, further achieving precise adjustment of the length of the forming member 300.

[0051] In this embodiment, the drive device 500 includes a drive motor 510, which is mounted on the abutment member 200 and provides power. The output shaft of the drive motor 510 is connected to a reduction mechanism 520, which reduces the output speed of the drive motor 510 and increases the torque to ensure that the adjusting screw 410 can move smoothly and accurately. The reduction mechanism 520 is threadedly connected to the adjusting screw 410. When the drive motor 510 operates, it transmits power to the adjusting screw 410 through the reduction mechanism 520, causing it to rotate and move axially.

[0052] In the above structure, the reduction mechanism 520 includes a threaded rod 521 and a turntable 522. The threaded rod 521 is rotatably connected to the output shaft of the drive motor 510 and is perpendicular to the adjusting screw 410. The turntable 522 is sleeved on the adjusting screw 410 and threadedly connected to it. Simultaneously, the outer edge of the turntable 522 is connected to the threaded rod 521, so that when the threaded rod 521 rotates, it can drive the turntable 522 to rotate, thereby driving the adjusting screw 410 to move axially. Figure 6 As shown, this design forms a worm gear structure, which not only achieves smooth power transmission, but also ensures the accuracy of the movement of the adjusting screw 410, thereby meeting the high precision requirements for the thickness of the film 140 during the formation of the die hole 120.

[0053] In this embodiment, the drive motor 510 includes a servo motor, which facilitates precise adjustment of the adjusting screw 410.

[0054] In summary, the process of generating the mold hole 120 of the automotive valve sealing component mold using the mold hole 120 generating device is as follows:

[0055] Step 1: Device pre-positioning

[0056] The abutment 200 of the die hole 120 generating device is aligned with the groove 110 of the die body 100 and installed to ensure that the outer edge of the abutment 200 is completely fitted with the groove 110;

[0057] The end face of the abutment 200 is pressed against the mold body 100 to form a flat abutment surface 130;

[0058] Step 2: Initial forming of die hole 120

[0059] Start the servo motor to drive the output shaft to rotate at a set speed. The power is transmitted through the reduction mechanism 520: the worm gear transmission ratio in the reduction mechanism 520 is 1:20.

[0060] The turntable 522 drives the adjusting screw 410 to advance axially, so as to push the forming part 300 to move towards the bottom of the groove 110. The forming end 310 extrudes the material of the mold body 100 to form a mold hole 120.

[0061] Step 3: Precise adjustment of film thickness (140mm)

[0062] The servo motor receives a setting command with a thickness of 0.15mm and runs accordingly. The reduction mechanism 520 converts the motor rotation into a micron-level displacement of the adjusting screw 410 (2μm per pulse feed).

[0063] The extension length L of the forming part 300 is adjusted in real time to form a film 140 with a thickness of 0.15 mm.

[0064] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A mold for automotive valve seals, characterized in that, include: A mold body, wherein a groove is provided on the mold body, the groove is arranged in a ring on the mold body, and an abutment surface is formed on one side of the mold body opposite to the groove; A mold hole is provided in the groove, the depth of the mold hole is less than the distance between the bottom of the groove and the abutment surface, and a mold core is installed in the mold hole.

2. The automotive valve sealing mold as described in claim 1, characterized in that, A thin film is formed between the bottom of the die hole and the abutment surface inside the die hole.

3. The automotive valve sealing mold as described in claim 2, characterized in that, The thickness of the film is 0.1 mm to 0.3 mm.

4. A die-forming apparatus for manufacturing a mold for an automotive valve seal as described in any one of claims 1-3, characterized in that, The die-forming device includes: The abutment member has an outer shape that corresponds to the shape of the groove, and one end face of the abutment member is used to form the abutment surface of the mold body; A molded part is movably disposed on the abutment member, and the mold hole is formed through the molded part when the automotive valve seal mold is formed; An adjusting device is provided on the abutting member, and the forming member is connected to the adjusting device. The adjusting device adjusts the moving distance of the forming member within the abutting member.

5. The die-forming device as described in claim 4, characterized in that, The molded part has a forming end for forming the bottom of the mold hole; The adjusting device controls the thickness of the film between the bottom of the formed die hole and the die abutment surface by adjusting the axial position of the formed part relative to the abutment part and changing the position of the formed end relative to the end face of the abutment part used to form the abutment surface.

6. The die-forming device as described in claim 4, characterized in that, The adjusting device includes an adjusting screw, which is rotatably installed inside the abutment member, and one end of the adjusting screw is connected to the forming member.

7. The die-forming device as described in claim 6, characterized in that, The abutment is provided with a driving device, which is connected to the adjusting screw. The driving device drives the adjusting screw to move relative to the abutment.

8. The die-forming apparatus as described in claim 7, characterized in that, The driving device includes: A drive motor is mounted on the abutment member; A reduction mechanism is connected to the output shaft of the drive motor. The reduction mechanism is connected to the adjusting screw, and the drive motor adjusts the movement of the adjusting screw through the reduction mechanism. The deceleration mechanism is threadedly connected to the adjusting screw.

9. The die-forming device as described in claim 8, characterized in that, The deceleration mechanism includes: A threaded rod, which is rotatably connected to the output shaft of the drive motor, and the threaded rod is perpendicular to the adjusting screw; A turntable is sleeved on the adjusting screw, the turntable is threadedly connected to the adjusting screw, the outer edge of the turntable is connected to the threaded rod, and the threaded rod rotates on the turntable.

10. The die-forming apparatus as described in claim 8, characterized in that, The drive motor includes a servo motor.

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