Composite core-pulling structure
By using a composite core-pulling structure and the cooperation of a core-pulling cylinder and a reversing plate, the problems of excessive mold height and product shaking and deformation are solved, thus achieving a reasonable mold layout and normal use.
Patent Information
- Application Number
- CN202422954153.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-02
AI Technical Summary
The existing engine valve body mold has a complex structure, resulting in an excessively high mold height, making it unsuitable for a 500T press. It also causes interference between the core pulling and the main guide, insufficient pressure plate position, and the inability to lay out the internal cooling point for the core pulling, leading to severe product shaking and deformation.
A composite core-pulling structure is adopted, including a core-pulling cylinder, a reversing plate, and a core-pulling pin guide block. Through tilting and sliding and the cooperation of the reversing plate, the separation of the core-pulling pin is achieved, reducing the mold height and optimizing the layout of the moving and fixed molds.
It effectively reduces mold height, optimizes mold layout, reduces product shaking and deformation, and ensures normal use of mold pressure plates without requiring special installation methods.
Smart Images
Figure CN223590016U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mould technical field, in particular to a composite core -pulling structure. BACKGROUND
[0002] Engine is a kind of machine that can convert other forms of energy into mechanical energy. The power of the car comes from the engine, and the engine is the heart of the car, which affects the power and economy of the car. The engine valve body is an important component of the engine, as shown in Figure 5 The engine valve body includes a valve body main body 24, two installation parts 25 are arranged on the both sides of the end of the valve body main body 24, at least one inclined hole 26 is formed on each installation part 25, the inclined holes 26 on the two installation parts 25 are of two different angles. Since the distance between the two groups of double-angle cores is close, and the mould structure is complex, it can cause the problems of insufficient installation of press plate position, cold layout of built-in core-pulling point, high overall height of mould that cannot be applied to 500T press, core-pulling and large lever interference and the like. SUMMARY
[0003] The utility model provides a composite core-pulling structure, effectively reduces mould height, makes dynamic die layout more reasonable, reduces product shaking deformation caused by slider pulling, and mould press plate is normally used without special installation mode.
[0004] The utility model discloses a technical scheme that solves technical problems: provide a kind of composite core-pulling structure, the composite core-pulling structure is installed in upper die frame one side, the upper die frame lower end is equipped with upper mould core, the composite core-pulling structure includes core-pulling oil cylinder, reversing plate and core-pulling pin guide block, the upper die frame upper portion right side has a chamber, the front and rear sides in the chamber are each equipped with one core-pulling pin guide block that is inclined and slides, two core-pulling pin guide blocks are relatively close or relatively far away movement, the core-pulling pin guide block is inclined and slides upwards from left to right direction, at least one core-pulling pin is fixed on the core-pulling pin guide block, the core-pulling pin one end is inclined and passes through upper mould core downwards, two reversing plate guide rails are symmetrically arranged between the two core-pulling pin guide blocks in the chamber, the outer side of each reversing plate guide rail is equipped with one inclined rail that is horizontally arranged, the interval between two inclined rails gradually increases from left to right direction, each inclined rail is slidably connected with one reversing plate, a bevel groove is formed on the outer side of each reversing plate, the side of the core-pulling pin guide block is provided with inclined convex that cooperates with bevel groove, Y-shaped puller is installed between the two reversing plate guide rails in the chamber and slides horizontally, the one end of the Y-shaped puller is provided with two puller convex strips, the interval between two puller convex strips gradually decreases from left to right direction, the reversing plate slides along corresponding puller convex strip, the other end of the Y-shaped puller is connected with core-pulling oil cylinder installed in the right side of upper die frame.
[0005] As a supplement to the technical scheme of the utility model, the chamber upper end and right side are open, the chamber upper port is closed through the cover plate, a plurality of support columns are installed on the lower end of the cover plate, and the lower end of the support column is used for pressing the reversing plate guide rail.
[0006] As a supplement to the technical scheme of the utility model, the core-pulling pin is fixed on the core-pulling pin guide block through the core-pulling pin fixing plate, and the core-pulling pin guide block and the core-pulling pin fixing plate are connected and fixed through fasteners.
[0007] As a supplement to the technical scheme of the utility model, the core-pulling pin guide block is installed in the corresponding core-pulling guide rail and slides obliquely.
[0008] As a supplement to the technical scheme of the utility model, the Y-shaped pull-out block comprises a pull rod and a base, the pull rod is in a strip-shaped structure, an installation gap is formed in one end of the pull rod, a butt protrusion is arranged in the middle of the base, the butt protrusion is matched with the installation gap and is fixed through fasteners, and two pull-out block protrusions are arranged on the base and are located on the two sides of the butt protrusion respectively.
[0009] As a supplement to the technical scheme of the utility model, one end of the piston rod of the core-pulling oil cylinder is provided with a T-shaped clamp, and a clamping groove matched with the T-shaped clamp is formed in the end portion of the other end of the pull rod.
[0010] Advantageous effects: the utility model relates to a composite core-pulling structure, the Y-shaped pull-out block is pulled to the right and slides through the core-pulling oil cylinder, two pull-out block protrusions on the Y-shaped pull-out block drive two reversing plates to move away from each other along respective inclined tracks, the oblique groove on the outer side of the reversing plate is matched with the oblique protrusion on the side of the core-pulling pin guide block, so that the two core-pulling pin guide blocks are forced to move obliquely upwards from left to right, the two core-pulling pin guide blocks move away from each other, the core-pulling pin moves together with the core-pulling pin guide block, and the lower end of the core-pulling pin is separated from the formed product. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the utility model;
[0012] Figure 2 It is a structural schematic diagram of the utility model after removing the upper mold frame and the cover plate;
[0013] Figure 3It is the structure schematic view of the Y type pull block of the utility model.
[0014] Figure 4 It is the structure schematic view of the Y type pull block of the utility model.
[0015] Figure 5 It is the structure schematic view of the utility model processing product.
[0016] Fig. shows: 1, upper mould frame, 2, cover plate, 3, chamber, 4, core-pulling oil cylinder, 5, support column, 6, Y type pull block, 7, upper mould core, 8, reversing plate guide rail, 9, reversing plate, 10, core-pulling guide rail, 11, core-pulling pin guide block, 12, core-pulling pin, 13, inclined track, 14, pull block convex strip, 15, core-pulling pin fixed plate, 16, T type clamp, 17, clamping groove, 18, pull rod, 19, base, 20, butt joint convex strip, 21, installation gap, 22, inclined groove, 23, inclined convex, 24, valve body main body, 25, installation part, 26, inclined hole. DETAILED DESCRIPTION
[0017] The utility model is further described below in combination with specific embodiments. It should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
[0018] The embodiment of the utility model relates to a composite core-pulling structure, such as Figures 1-5As shown, the composite core-pulling structure is installed on one side of the upper mold frame 1, the lower end of the upper mold frame 1 is provided with an upper mold core 7, the composite core-pulling structure comprises a core-pulling oil cylinder 4, a reversing plate 9 and a core-pulling pin guide block 11, the upper right side of the upper mold frame 1 is provided with a cavity 3, the front and rear sides of the cavity 3 are each provided with an inclined sliding core-pulling pin guide block 11, the two core-pulling pin guide blocks 11 are relatively close or relatively far away from each other, the core-pulling pin guide block 11 slides obliquely upward from left to right, at least one core-pulling pin 12 is fixed on the core-pulling pin guide block 11, one end of the core-pulling pin 12 obliquely penetrates through the upper mold core 7, two reversing plate guide rails 8 are symmetrically arranged between the two core-pulling pin guide blocks 11, the outer side of each reversing plate guide rail 8 is provided with an obliquely arranged inclined rail 13, the distance between the two inclined rails 13 gradually increases from left to right, each inclined rail 13 is slidably connected with a reversing plate 9, the outer side of each reversing plate 9 is provided with an inclined groove 22, the side edge of the core-pulling pin guide block 11 is provided with an inclined protrusion 23 matched with the inclined groove 22, a transversely sliding Y-shaped puller 6 is installed between the two reversing plate guide rails 8 in the cavity 3, one end of the Y-shaped puller 6 is provided with two puller protrusions 14, the distance between the two puller protrusions 14 gradually decreases from left to right, the reversing plate 9 slides along the corresponding puller protrusion 14, the other end of the Y-shaped puller 6 is connected with the core-pulling oil cylinder 4 installed on the right side of the upper mold frame 1.
[0019] When the product is formed, the upper mold and the lower mold are separated upward and downward, the Y-shaped puller 6 is pulled by the core-pulling oil cylinder 4 to slide rightward, the two puller protrusions 14 on the Y-shaped puller 6 drive the two reversing plates 9 to relatively move away from each other along the respective inclined rails 13, due to the cooperation between the inclined groove 22 on the outer side of the reversing plate 9 and the inclined protrusion 23 on the side edge of the core-pulling pin guide block 11, the two core-pulling pin guide blocks 11 are forced to move obliquely upward from left to right, and the two core-pulling pin guide blocks relatively move away from each other, the core-pulling pin 12 moves together with the core-pulling pin guide block 11, so that the lower end of the core-pulling pin 12 is obliquely separated from the formed product. The utility model designs a brand-new composite core-pulling structure, effectively reduces the mold height, makes the dynamic mold layout more reasonable, reduces the product shaking and deformation caused by the sliding block pulling, and the mold pressing plate is normally used without special installation mode.
[0020] The upper end and the right side of the cavity 3 are open, the upper port of the cavity 3 is sealed by the cover plate 2, the lower end of the cover plate 2 is provided with a plurality of support columns 5, the lower end of the support column 5 is used for pressing the reversing plate guide rail 8.
[0021] The core-pulling pin 12 is fixed on the core-pulling pin guide block 11 through the core-pulling pin fixing plate 15, the core-pulling pin guide block 11 and the core-pulling pin fixing plate 15 are connected and fixed through fasteners.
[0022] The chamber 3 is internally provided with front and rear core-pulling guide rails 10, and core-pulling pin guide blocks 11 are obliquely slidably arranged in the core-pulling guide rails 10.
[0023] The Y-shaped block 6 comprises a pull rod 18 and a base 19, the pull rod 18 is in a strip-shaped structure, and an installation gap 21 is formed at one end of the pull rod 18, the base 19 is provided with a butt protrusion 20 at the middle portion, the butt protrusion 20 is matched with the installation gap 21 and is fixed by a fastener, and two block protrusions 14 are arranged on the base 19 and are respectively located at the two sides of the butt protrusion 20.
[0024] The piston rod of the core-pulling oil cylinder 4 is provided with a T-shaped clamp 16 at one end, and a clamping groove 17 matched with the T-shaped clamp 16 is formed at the other end of the pull rod 18; the piston rod of the core-pulling oil cylinder 4 and the Y-shaped block 6 are quickly connected through the matching of the clamping groove 17 and the T-shaped clamp 16.
[0025] In the description of the present application, it should be understood that the orientation words such as "front, rear, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and in the absence of the opposite description, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.
[0026] In order to facilitate the description, spatial relative terms such as "on", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "on" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.
[0027] In addition, it should be noted that the use of the words "first", "second" and the like to define parts only facilitates the differentiation of the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as a limitation on the protection scope of the present application.
[0028] The above describes in detail the composite core-pulling structure provided by the present application. The principles and implementation manners of the present application are described by using specific examples. The above description of the examples is only used to help understand the method of the present application and its core idea. Meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manners and application ranges will be changed. In summary, the content of the present description should not be understood as a limitation of the present application.
Claims
1. A combined core-pulling structure, which is installed at one side of an upper mold frame (1), and an upper mold core (7) is installed at the lower end of the upper mold frame (1), characterized in that: The composite core-pulling structure comprises a core-pulling oil cylinder (4), a reversing plate (9) and a core-pulling pin guide block (11), the upper mold frame (1) is provided with a cavity (3) on the right side of the upper portion, the cavity (3) is internally provided with two core-pulling pin guide blocks (11) which are symmetrically arranged on the front and back sides and are obliquely slid, the two core-pulling pin guide blocks (11) are relatively close to each other or relatively far away from each other, the core-pulling pin guide blocks (11) are obliquely slid upward from left to right, at least one core-pulling pin (12) is fixed on the core-pulling pin guide blocks (11), one end of the core-pulling pin (12) is obliquely downward through the upper mold core (7), two reversing plate guide rails (8) are symmetrically arranged between the two core-pulling pin guide blocks (11) in the cavity (3), each reversing plate guide rail (8) is externally provided with an oblique track (13) which is horizontally arranged, the interval between the two oblique tracks (13) gradually increases from left to right, each oblique track (13) is slidably connected with a reversing plate (9), each reversing plate (9) is externally provided with an inclined groove (22), the side edge of the core-pulling pin guide block (11) is provided with an inclined protrusion (23) which cooperates with the inclined groove (22), a Y-shaped pull-out block (6) is installed between the two reversing plate guide rails (8) in the cavity (3) and is transversely slid, one end of the Y-shaped pull-out block (6) is provided with two pull-out block protrusions (14), the interval between the two pull-out block protrusions (14) gradually decreases from left to right, the reversing plate (9) is slid along the corresponding pull-out block protrusion (14), the other end of the Y-shaped pull-out block (6) is connected with the core-pulling oil cylinder (4) which is installed on the right side of the upper mold frame (1).
2. The composite core structure of claim 1, wherein: The upper end and the right side of the cavity (3) are open, the upper end of the cavity (3) is closed by a cover plate (2), a plurality of supporting columns (5) are installed on the lower end of the cover plate (2), the lower end of the supporting column (5) is used for pressing the reversing plate guide rail (8).
3. The combined core structure of claim 1, wherein: The core-pulling pin (12) is fixed on the core-pulling pin guide block (11) through a core-pulling pin fixing plate (15), the core-pulling pin guide block (11) and the core-pulling pin fixing plate (15) are connected and fixed through fasteners.
4. The combined core structure of claim 1, wherein: The cavity (3) is internally provided with a core-pulling guide rail (10) on each of the front and back sides, the core-pulling pin guide block (11) is obliquely slid in the corresponding core-pulling guide rail (10).
5. The combined core structure of claim 1, wherein: The Y-shaped pull-out block (6) comprises a pull rod (18) and a base (19), the pull rod (18) is in a strip-shaped structure, one end of the pull rod (18) is provided with an installation gap (21), the middle portion of the base (19) is provided with a butt joint protrusion (20), the butt joint protrusion (20) cooperates with the installation gap (21) and is fixed by fasteners, the two pull-out block protrusions (14) are arranged on the base (19) and are respectively located on the two sides of the butt joint protrusion (20).
6. A composite core structure according to claim 5, wherein: The piston rod of the core-pulling oil cylinder (4) is provided with a T-shaped clamp (16) at one end, the end of the other end of the pull rod (18) is provided with a clamping groove (17) which cooperates with the T-shaped clamp (16).