Machining mold base for automobile steering wheel
The design of dual gating channels and positioning mechanism solves the problem of uneven flow of molten material, ensuring uniform injection molding of the automotive steering wheel mold blank and improving product quality and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-10
AI Technical Summary
In the traditional injection molding process of automotive steering wheels, the molten material flows unevenly, leading to overheating or material accumulation in localized areas of the steering wheel, which affects the product's appearance quality and mechanical properties.
The design employs a dual-channel pouring system and a positioning mechanism to ensure uniform flow of molten material. The cooperation between the first and second pouring channels prevents localized overheating and material accumulation. Furthermore, the heat insulation effect is enhanced by a nanoporous ceramic heat insulation plate.
It achieves uniform filling of molten material, avoids local overheating and material accumulation, improves the appearance quality and mechanical properties of the product, and extends its service life.
Smart Images
Figure CN224103397U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to injection molding technology field especially relates to a kind of processing mould for automobile steering wheel. BACKGROUND
[0002] In the automobile manufacturing industry, steering wheel as the key component of driving control, its quality and performance are directly related to the safety and comfort of driving, the processing and manufacturing process of steering wheel, injection molding is a widely used process method, it is formed by the required product shape after cooling solidification by molten plastic material is injected into mould cavity.
[0003] But traditional processing mould for automobile steering wheel has some problems in injection molding process, since the flow of molten material is not uniform during injection, it is easy to cause the phenomenon of local area of steering wheel overheating or material accumulation, which not only affects the appearance quality of product, but also may cause internal stress concentration, reduce the mechanical properties and service life of product. UTILITY MODEL CONTENT
[0004] The utility model discloses a kind of processing mould for automobile steering wheel, to solve the technical problems that traditional processing mould for automobile steering wheel has some problems in injection molding process, since the flow of molten material is not uniform during injection, it is easy to cause the phenomenon of local area of steering wheel overheating or material accumulation, which not only affects the appearance quality of product, but also may cause internal stress concentration, reduce the mechanical properties and service life of product.
[0005] To achieve the above object, the utility model adopts the following technical scheme:
[0006] A kind of processing mould for automobile steering wheel, including A plate and B plate, the top of the A plate is equipped with pouring plate, the bottom of the B plate is equipped with mould foot, further include: injection mechanism: between the pouring plate and the A plate, the injection mechanism includes two pouring channels, the pouring channel is located on the pouring plate, the top outer wall of the pouring plate is equipped with first pouring groove, the bottom inner wall of the first pouring groove is equipped with two shunt, two the pouring channel is communicated with the first pouring groove, the top outer wall of the A plate is equipped with second pouring groove, the bottom inner wall of the second pouring groove is equipped with two pouring ports, the shunt is communicated with the second pouring groove, the first pouring groove and the second pouring groove are same size;Positioning mechanism: between the B plate and the mould foot.
[0007] In the scheme, through two pouring channels, at this time the molten material flows into the inside of the first pouring groove equally and uniformly, and then continues to flow to the inside of the second pouring groove through the two shunt ports at the bottom of the first pouring groove, and then smoothly flows into the inside of the blank through the two pouring ports on the second pouring groove, thereby filling the cavities inside the A plate and the B plate. This arrangement makes the molten material form a stable flow state in the second pouring groove, avoiding the problems of local overheating or material accumulation, and ensuring that the molten material fills the cavities of the A plate and the B plate uniformly and stably.
[0008] In a preferred scheme, the positioning mechanism includes four limiting columns, and the four limiting columns are respectively located near the four corners of the top outer wall of the B plate. The top outer wall of the B plate is provided with four protrusions, the bottom outer wall of the A plate is provided with four limiting grooves and four limiting sleeves, the protrusions are matched with the limiting grooves, and the limiting sleeves are matched with the limiting columns.
[0009] In the scheme, before the mold is closed, the A plate and the B plate are in a separated state. When the A plate moves towards the B plate to close the mold, the four protrusions first contact the four limiting grooves. Since the shapes and sizes of the protrusions and the limiting grooves are matched, they can be closely matched to prevent the A plate and the B plate from moving relative to each other in the horizontal direction. With the continuous movement of the A plate, the four limiting columns gradually enter the four limiting sleeves at the bottom of the A plate. The matching of the limiting columns and the limiting sleeves limits the relative movement of the A plate and the B plate during the closing of the mold, ensuring the precision and stability of the upper mold cavity and the lower mold cavity.
[0010] As can be seen from the above, a processing blank for an automobile steering wheel includes an A plate and a B plate. The top of the A plate is provided with a pouring plate, and the bottom of the B plate is provided with a mold foot. The processing blank further includes an injection mechanism located between the pouring plate and the A plate. The injection mechanism includes two pouring channels located on the pouring plate. The top outer wall of the pouring plate is provided with a first pouring groove, and the bottom inner wall of the first pouring groove is provided with two shunt ports. The two pouring channels are communicated with the first pouring groove. The top outer wall of the A plate is provided with a second pouring groove, and the bottom inner wall of the second pouring groove is provided with two pouring ports. The shunt ports are communicated with the second pouring groove. The first pouring groove and the second pouring groove are of the same size. The processing blank further includes a positioning mechanism located between the B plate and the mold foot. The processing blank for an automobile steering wheel provided by the present application has the technical effect of avoiding local overheating and material accumulation during injection molding, and improving the uniformity and stability of the molten material during filling. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 The present application provides a whole structure schematic view of a processing blank for an automobile steering wheel.
[0012] Figure 2 The utility model provides a kind of for the processing mould blank of automobile steering wheel's pouring plate structure plan view.
[0013] Figure 3 The utility model provides a kind of for the A plate top structure schematic diagram of the processing mould blank of automobile steering wheel.
[0014] Figure 4 The utility model provides a kind of for the A plate bottom structure schematic diagram of the processing mould blank of automobile steering wheel.
[0015] Figure 5 The utility model provides a kind of for the positioning mechanism structure schematic diagram of the processing mould blank of automobile steering wheel.
[0016] Figure 6 The utility model provides a kind of for the bottom sealing plate and mould foot structure schematic diagram of the processing mould blank of automobile steering wheel.
[0017] In the drawing: 1, top sealing plate; 2, pouring plate; 3, A plate; 4, B plate; 5, mould foot; 6, bottom sealing plate; 7, pouring opening; 8, outer heat insulating plate; 9, pouring passage; 10, pouring port; 11, limit sleeve; 12, upper mould cavity; 13, limit column; 14, lower mould cavity; 15, return pin. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and indicated in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.
[0019] The utility model discloses a kind of for the processing mould blank of automobile steering wheel, it is mainly applied to the traditional processing mould blank for automobile steering wheel in injection molding process There are some problems, since the flow of molten material is uneven when injection molding, prone to the phenomenon that steering wheel local area appears overheating or material accumulation, this not only affects the appearance quality of product, possibly also causes internal stress concentration, reduces the mechanical properties and service life of product scene.
[0020] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 andFigure 6 The processing blank for the steering wheel of the automobile comprises an A plate 3 and a B plate 4, the top of the A plate 3 is provided with a pouring plate 2, the bottom of the B plate 4 is provided with a mold foot 5, and the processing blank further comprises: a pouring mechanism located between the pouring plate 2 and the A plate 3, the pouring mechanism comprises two pouring channels 9, the pouring channels 9 are located on the pouring plate 2, the top outer wall of the pouring plate 2 is provided with a first pouring groove, the bottom inner wall of the first pouring groove is provided with two shunt ports, the two pouring channels 9 are communicated with the first pouring groove, the top outer wall of the A plate 3 is provided with a second pouring groove, the bottom inner wall of the second pouring groove is provided with two pouring ports 10, the shunt ports are communicated with the second pouring groove, the first pouring groove and the second pouring groove are of the same size; and a positioning mechanism located between the B plate 4 and the mold foot 5.
[0021] The first pouring groove is of a “T” shape structure, and the first pouring groove of the “T” shape structure can ensure the uniformity of the molten material in the flowing process, thereby avoiding the problems of local overheating or insufficient filling, which helps to improve the quality and the qualification rate of the product.
[0022] Specifically, the injection device injects the molten material into the two pouring channels 9 at a certain pressure and speed, at this time, the molten material flows into the inside of the first pouring groove in equal and uniform manner, and then continues to flow into the inside of the second pouring groove through the two shunt ports at the bottom of the first pouring groove, and then smoothly flows into the inside of the blank through the two pouring ports 10 on the second pouring groove, so as to fill the cavities inside the A plate 3 and the B plate 4. This arrangement makes the molten material form a stable flowing state in the second pouring groove, avoids the problems of local overheating or material accumulation, and can ensure that the molten material uniformly and stably fills the cavities of the A plate 3 and the B plate 4.
[0023] With reference to Figure 1 and Figure 2 In a preferred embodiment, the top of the pouring plate 2 is provided with a top sealing plate 1, the bottom of the mold foot 5 is provided with a bottom sealing plate 6, the top outer wall of the top sealing plate 1 and the bottom outer wall of the bottom sealing plate 6 are both provided with an outer heat insulation plate 8, the top outer wall of the top sealing plate 1 is provided with a pouring opening 7, and the pouring opening 7 is communicated with the pouring channel 9.
[0024] It should be noted that the outer heat insulation plate 8 is made of nano-porous ceramic and contains a large number of nano-scale pores inside, and these pores can effectively block the transfer of heat, thereby achieving high-efficiency heat insulation effect.
[0025] Specifically, a heat insulation pad or a heat insulation coating can be further arranged between the contact surface of the outer heat insulation plate 8 and the blank, so as to further improve the heat insulation effect, and meanwhile, the arrangement of the outer heat insulation plate 8 effectively prevents heat loss of the mold during heating, thereby improving the production efficiency.
[0026] With reference to Figure 1 , Figure 4 and Figure 5In a preferred embodiment, the bottom outer wall of the A plate 3 and the top outer wall of the B plate 4 are respectively provided with an upper mold cavity 12 and a lower mold cavity 14, the pouring gate 10 is communicated with the upper mold cavity 12, and the upper mold cavity 12 and the lower mold cavity 14 are referred to as the same cavities as described above.
[0027] With reference to Figure 1 , Figure 4 , Figure 5 and Figure 6 In a preferred embodiment, the positioning mechanism includes four limiting columns 13, which are respectively located near the four corners of the top outer wall of the B plate 4, the top outer wall of the B plate 4 is provided with four protrusions, the bottom outer wall of the A plate 3 is provided with four limiting grooves and four limiting sleeves 11, the protrusions are matched with the limiting grooves, and the limiting sleeves 11 are used in cooperation with the limiting columns 13.
[0028] The inner wall of the A plate 3 is provided with a female mold core, and the inner wall of the B plate 4 is provided with a male mold core, the positions of the female mold core and the male mold core are opposite, and it should be noted that the female mold core and the male mold core are not shown in the drawings.
[0029] In the specific use process, the mold foot 5 is composed of a bottom needle plate and a plurality of square irons, the top of the bottom needle plate is provided with a plurality of return pins 15, which are used to restore the A plate 3 and the B plate 4 to the initial position after the mold is opened, facilitating the next mold closing operation.
[0030] Specifically, before the mold is closed, the A plate 3 and the B plate 4 are in a separated state, when the A plate 3 moves towards the B plate 4 to close the mold, the four protrusions first contact the four limiting grooves, since the shapes and sizes of the protrusions and the limiting grooves are matched, they can be tightly matched to prevent the A plate 3 and the B plate 4 from moving relatively in the horizontal direction, with the continuous movement of the A plate 3, the four limiting columns 13 gradually enter the four limiting sleeves 11 at the bottom of the A plate 3, the cooperation of the limiting columns 13 and the limiting sleeves 11 limits the relative movement of the A plate 3 and the B plate 4 during the mold closing process, ensuring the precision and stability of the upper mold cavity 12 and the lower mold cavity 14.
[0031] Working principle: when in use, the injection device injects the molten material into the two pouring channels 9 at a certain pressure and speed, at this time, the molten material flows into the inside of the first pouring groove in equal and uniform amounts, and then continues to flow into the inside of the second pouring groove through the two flow ports at the bottom of the first pouring groove, and then smoothly flows into the inside of the mold embryo through the two pouring gates 10 on the second pouring groove, so that the molten material can uniformly and stably fill the cavities inside the A plate 3 and the B plate 4.
[0032] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. According to the technical solution and the inventive concept of the present application, equivalent replacement or change should be covered in the protection scope of the present application.
Claims
1. A machining blank for a steering wheel of a vehicle, comprising an A plate (3) and a B plate (4), characterized in that, The top of the A plate (3) is provided with a pouring plate (2), the bottom of the B plate (4) is provided with a mold foot (5), and the injection mechanism comprises two pouring channels (9). The injection mechanism comprises two pouring channels (9), the pouring channels (9) are located on the pouring plate (2), the top outer wall of the pouring plate (2) is provided with a first pouring groove, the bottom inner wall of the first pouring groove is provided with two shunt ports, the two pouring channels (9) are communicated with the first pouring groove, the top outer wall of the A plate (3) is provided with a second pouring groove, the bottom inner wall of the second pouring groove is provided with two pouring ports (10), the shunt ports are communicated with the second pouring groove, and the first pouring groove and the second pouring groove are of the same size. The positioning mechanism is located between the B plate (4) and the mold foot (5).
2. A machining blank for a steering wheel of a vehicle according to claim 1, characterized in that The first pouring groove is of a "T" shape structure.
3. A machining blank for a steering wheel of a vehicle according to claim 2, characterized in that The top of the pouring plate (2) is provided with a top sealing plate (1), the bottom of the mold foot (5) is provided with a bottom sealing plate (6), the top outer wall of the top sealing plate (1) and the bottom outer wall of the bottom sealing plate (6) are provided with outer heat insulation plates (8), the top outer wall of the top sealing plate (1) is provided with a pouring port (7), and the pouring port (7) is communicated with the pouring channel (9).
4. A machining blank for a steering wheel of a vehicle according to claim 1, characterized in that, The bottom outer wall of the A plate (3) and the top outer wall of the B plate (4) are respectively provided with an upper mold cavity (12) and a lower mold cavity (14), and the pouring port (10) is communicated with the upper mold cavity (12).
5. A machining blank for a steering wheel of a vehicle according to claim 4, characterized in that The positioning mechanism comprises four limiting columns (13), the four limiting columns (13) are respectively located at the top outer wall of the B plate (4) near the four corners, the top outer wall of the B plate (4) is provided with four protrusions, the bottom outer wall of the A plate (3) is provided with four limiting grooves and four limiting sleeves (11), the protrusions are matched with the limiting grooves, and the limiting sleeves (11) are used in cooperation with the limiting columns (13).
6. A machining blank for a steering wheel of a vehicle according to claim 5, characterized in that The inner wall of the A plate (3) is provided with a female mold core, the inner wall of the B plate (4) is provided with a male mold core, and the positions of the female mold core and the male mold core are opposite.
7. A machining blank for a steering wheel of a vehicle according to claim 1, characterized in that, The mold foot (5) is composed of a bottom needle plate and a plurality of square irons, and the top of the bottom needle plate is provided with a plurality of return pins (15).