Forming die for large-angle pitched roof

Abstract

The utility model relates to the technical field of dies, in particular to a large-angle pitched roof forming die which comprises a bottom plate, a die foot arranged on the bottom plate, an ejector plate arranged on the bottom plate, a rear die holder arranged on the die foot and a rear die core arranged on the rear die holder, the rear die core is provided with a forming area, and the forming area is provided with a pitched roof hole. A movable insert is movably connected in the inclined top hole, and an inclined rod is arranged at the bottom of the movable insert; the ejector plate is provided with a rotating assembly, and the lower end of the inclined rod is connected with the rotating assembly; the rotating assembly comprises a rotating base connected with the ejector plate and a rotating piece rotationally connected to the rotating base, and the rotating piece is connected with the inclined rod. The end part of the inclined rod is connected with the rotating assembly, so that in the ejection process of the inclined rod, the end part of the inclined rod can flexibly move, the inclined rod and the movable insert are prevented from being blocked, the movable insert is ensured to be smoothly separated from a product, quick demolding is realized, and the inclined rod is prevented from being broken and damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and particularly relates to a forming mold for a large-angle inclined ejector Background Art

[0002] Injection molding is a manufacturing technology widely used in industrial production. It injects molten thermoplastic or thermosetting materials into a precisely designed mold, and after cooling and solidifying, various plastic products with different shapes and sizes are formed. This process usually relies on an injection molding machine, which can provide the pressure and temperature control required for injection molding. During the injection molding process of some products, it is necessary to adaptively design the injection mold according to the specific structure of the product. Some products have a large curved surface structure, and at the same time, there are relatively deep concave or convex structures (such as screw mounting seats, etc.) on the inner wall of the curved surface. The product itself has a relatively large amount of plastic. In order to facilitate molding and demolding, an inclined ejector structure is required. The inclined ejector structure can move obliquely during the demolding process, so as to disengage from the structure on the inner wall of the product. However, due to the relatively deep concave and convex structures and the large curved surface of this product, the inclined ejector structure requires a large angle and length. Such a structure has poor movement during mold opening and ejection, and is prone to burning and jamming. In severe cases, it may even cause the inclined ejector to break Content of the Utility Model

[0003] In order to solve the above problems, the utility model provides a forming mold for a large-angle inclined ejector

[0004] The utility model is realized by the following scheme

[0005] A forming mold for a large-angle inclined ejector includes a bottom plate, mold feet arranged on the bottom plate, an ejector plate arranged on the bottom plate, a rear mold base arranged on the mold feet, a rear mold core arranged on the rear mold base. The rear mold core is provided with a forming area, and the forming area has an inclined ejector hole. A movable insert is movably connected in the inclined ejector hole. A slant bar is arranged at the bottom of the movable insert, and the slant bar passes through the rear mold core and the rear mold base and extends below the rear mold base; the ejector plate is provided with a rotating component, and the lower end of the slant bar is connected to the rotating component; the rotating component includes a rotating seat connected to the ejector plate, a rotating part rotatably connected to the rotating seat, and the rotating part is connected to the slant bar

[0006] Further, the rotating seat is in a "U" shape, including a base and two vertical plates arranged on the base, and the rotating part is connected between the two vertical plates

[0007] Further, a connecting groove is arranged on one side of the vertical plate facing the middle of the base, a connecting plate is installed in the connecting groove, and the end of the rotating part is connected to the connecting plate

[0008] Furthermore, the rotating member is provided with an inserting slot, and the oblique rod is inserted into the inserting slot.

[0009] Furthermore, the rear mold base is provided with a through hole for the oblique rod to pass through, and a guide plate for guiding the oblique rod is provided on the bottom surface of the rear mold base at a position corresponding to the through hole.

[0010] Furthermore, the bottom surface of the rear mold base is provided with a recessed portion for mounting the guide plate.

[0011] Furthermore, the molding area is provided with a guide bar, and the position of the movable insert corresponding to the guide bar is recessed inward to form a guide portion matching the guide bar.

[0012] Furthermore, two guide bars are provided in parallel, the movable insert is connected between the two guide bars, and the side of the guide bar facing the movable insert is an inclined surface.

[0013] Furthermore, there are two rear mold cores, and two movable inserts are correspondingly provided.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The utility model provides a rotating assembly on the ejection plate, and the end of the inclined rod is connected to the rotating assembly. During the ejection process of the inclined rod, the end of the inclined rod can be flexibly moved to prevent the inclined rod and the movable insert from being stuck, ensure that the movable insert is smoothly separated from the product, and realize rapid demolding, thereby avoiding breakage and damage of the inclined rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a forming die with a large-angle inclined top provided by the utility model.

[0017] Figure 2 This is a schematic diagram of the present invention from another angle.

[0018] Figure 3 This is a schematic diagram of the rear mold core of the present utility model.

[0019] Figure 4 It is a schematic diagram of the rear mold base part of the utility model.

[0020] Figure 5 It is a schematic diagram of the movable insert of the utility model.

[0021] Figure 6 It is a schematic diagram of the rotating assembly of the utility model.

[0022] Included in the figure are:

[0023] Bottom plate 1, mold feet 11, ejector plate 2, rear mold base 3, through hole 31, guide plate 32, concave portion 33, rear mold core 4, angled ejector hole 41, guide bar 42, movable insert 5, angled rod 51, guide portion 52, rotating assembly 6, rotating base 61, base 611, vertical plate 612, connecting groove 613, rotating member 62, connecting plate 63, insertion slot 64. Detailed implementation manner

[0024] For the convenience of those skilled in the art to understand the present utility model, the present utility model will be further described in detail below in conjunction with specific embodiments and drawings.

[0025] Embodiment 1

[0026] Referring to Figures 1 to 6 , a molding die with a large-angle angled ejector provided by the present utility model includes a bottom plate, mold feet provided on the bottom plate, an ejector plate provided on the bottom plate, a rear mold base provided on the mold feet, a rear mold core provided on the rear mold base, the rear mold core is provided with a molding area, the molding area has an angled ejector hole, a movable insert is movably connected in the angled ejector hole, a angled rod is provided at the bottom of the movable insert, and the angled rod passes through the rear mold core and the rear mold base and extends below the rear mold base.

[0027] The ejector plate is provided with a rotating assembly, and the lower end of the angled rod is connected to the rotating assembly; the rotating assembly includes a rotating base connected to the ejector plate, a rotating member rotatably connected to the rotating base, and the rotating member is connected to the angled rod. When the mold is opened, during the process of the angled rod ejecting, it can rotate with the lower end as the center at the same time, enhancing the flexibility of the movement of the movable insert, that is, it is equivalent to having a buffer during the process of the angled rod ejecting, and avoiding the situation of the angled rod being stuck.

[0028] The rotating base is in a "U" shape, including a base and two vertical plates provided on the base, and the rotating member is connected between the two vertical plates.

[0029] On one side of the vertical plate facing the middle of the base, a connecting groove is provided, a connecting plate is installed in the connecting groove, and the end of the rotating member is connected to the connecting plate. In specific implementation, the connecting plate can move along the connecting groove, that is, the rotating member can move along the connecting groove, so that during the process of the angled rod ejecting, the lower end of the angled rod can rotate under the action of the rotating member and at the same time can achieve linear movement, adding an additional degree of freedom on the basis of rotation, further enhancing the flexibility of the movement of the movable insert, and further ensuring that the angled rod will not be burned or stuck during the ejecting process.

[0030] The rotating member is provided with an insertion slot, and the angled rod is inserted into the insertion slot. After the angled rod is inserted into the insertion slot, it can be locked and fixed with screws to prevent the angled rod and the rotating member from separating.

[0031] The rear mold base is provided with a through-hole for the diagonal rod to pass through. The through-hole is larger than the diagonal rod, so that the diagonal rod has sufficient space to move. A guide plate for guiding the diagonal rod is provided on the bottom surface of the rear mold base at a position corresponding to the through-hole. The guide plate ensures more stable movement of the diagonal rod during ejection.

[0032] The bottom surface of the rear mold base is provided with a concave portion for installing the guide plate. The guide plate is installed in the concave portion and embedded in the rear mold base to avoid exposing the bottom surface of the rear mold base.

[0033] The molding area is provided with a guide bar, and the position of the movable insert corresponding to the guide bar is recessed inward to form a guide portion matching the guide bar. When the inclined rod is ejected, the movable insert moves along the guide bar, making the overall ejection action more stable.

[0034] There are two parallel guide bars, and the movable insert is connected between the two guide bars. The side of the guide bar facing the movable insert is an inclined surface, and a dovetail groove is formed between the two guide bars, thereby preventing the movable insert from falling off and further ensuring the stability of the ejection action.

[0035] In specific implementation, the mold also has structures such as a front mold base and a front mold core. When the mold is opened after the injection molding is completed, the inclined rod performs the ejection action. During the ejection process of the inclined rod, the movable insert moves away from the molding area and moves toward the middle position of the molding area. The other end of the inclined rod can also move flexibly with the cooperation of the rotating component, so that the movable insert can be quickly separated from the product to achieve rapid demolding.

[0036] Example 2

[0037] Reference Figures 1 to 6 The utility model provides a large-angle inclined top forming mold, including a bottom plate, a mold foot arranged on the bottom plate, an ejector plate arranged on the bottom plate, a rear mold base arranged on the mold foot, and a rear mold core arranged on the rear mold base. The rear mold core is provided with a forming area, and the forming area has an inclined top hole. A movable insert is movably connected in the inclined top hole, and an inclined rod is provided at the bottom of the movable insert. The inclined rod passes through the rear mold core and the rear mold base and extends to the bottom of the rear mold base.

[0038] The ejector plate is equipped with a rotating assembly, to which the lower end of the diagonal rod is connected. The rotating assembly includes a rotating base connected to the ejector plate, a rotating member rotatably connected to the rotating base, and the rotating member is connected to the diagonal rod. During mold opening, the diagonal rod can simultaneously rotate around its lower end during ejection, enhancing the flexibility of the movable insert. This provides a buffer during the ejection process, preventing the diagonal rod from getting stuck.

[0039] The rotating seat is in a "U" shape and includes a base and two vertical plates arranged on the base. The rotating member is connected between the two vertical plates.

[0040] On one side of the vertical plate facing the middle of the base, a connecting groove is provided. A connecting plate is installed in the connecting groove, and the end of the rotating member is connected to the connecting plate. In specific implementation, the connecting plate can move along the connecting groove, that is, the rotating member can move along the connecting groove. Thus, during the process of the ejector rod being ejected, while the lower end of the ejector rod rotates under the action of the rotating member, it can also perform linear movement, adding an additional degree of freedom based on rotation, further enhancing the flexibility of the movable insert's movement, and further ensuring that the ejector rod will not be burned or stuck during the ejection process.

[0041] The rotating member is provided with a plugging groove, and the ejector rod is plugged into the plugging groove. After the ejector rod is plugged into the plugging groove, screws can be used for locking and fixing to prevent the ejector rod from separating from the rotating member.

[0042] The rear mold base is provided with a through hole for the ejector rod to pass through. The size of the through hole is larger than that of the ejector rod, so that the ejector rod has sufficient moving space. At the position corresponding to the through hole on the bottom surface of the rear mold base, a guiding plate for guiding the ejector rod is provided, which makes the movement of the ejector rod more stable during the ejection process.

[0043] The bottom surface of the rear mold base is provided with a concave portion for installing the guiding plate. The guiding plate is installed in the concave portion and is embedded in the rear mold base to avoid exposing the bottom surface of the rear mold base.

[0044] The molding area is provided with guiding strips. At the position corresponding to the guiding strips on the movable insert, it is recessed inward to form a guiding portion matching the guiding strips. When the ejector rod is ejected, the movable insert moves along the guiding strips, making the overall ejection action more stable.

[0045] Two guiding strips are arranged in parallel. The movable insert is connected between the two guiding strips. The side of the guiding strip facing the movable insert is an inclined surface. Between the two guiding strips, it is equivalent to forming a dovetail groove, thus preventing the movable insert from falling off and further ensuring the stability of the ejection action.

[0046] In specific implementation, the mold also has structures such as a front mold base and a front mold core. When the mold is opened after injection molding is completed, the ejector rod performs an ejection action. During the process of the ejector rod being ejected, the movable insert moves in a direction away from the molding area while moving towards the middle position of the molding area. The other end of the ejector rod can also move flexibly under the cooperation of the rotating component, so that the movable insert can quickly separate from the product and achieve rapid demolding.

[0047] In this embodiment, two rear mold cores are provided, two movable inserts are provided correspondingly, and two other corresponding structures such as rotating components are also provided, so that two products can be injection molded at the same time.

[0048] The utility model provides a rotating assembly on the ejection plate, and the end of the inclined rod is connected to the rotating assembly. During the ejection process of the inclined rod, the end of the inclined rod can be flexibly moved to prevent the inclined rod and the movable insert from being stuck, ensure that the movable insert is smoothly separated from the product, and realize rapid demolding, thereby avoiding breakage and damage of the inclined rod.

[0049] In the description of the present invention, it should be understood that the indicated orientations or positional relationships are only for the purpose of facilitating the description of the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0050] Furthermore, the terms "first," "second," and so on are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0051] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0052] Although the present invention has been described with reference to the above specific embodiments, it is apparent that those skilled in the art can make many substitutions, modifications, and variations based on the above. Therefore, all such substitutions, modifications, and variations are intended to fall within the scope of the appended claims.

Claims

1. A forming die with a large angle inclined top, characterized in that: It includes a bottom plate, a die foot disposed on the bottom plate, an ejector plate disposed on the bottom plate, a rear mold base disposed on the die foot, a rear mold core disposed on the rear mold base. The rear mold core is provided with a molding area which has an inclined ejector hole. A movable insert is movably connected in the inclined ejector hole. A diagonal rod is disposed at the bottom of the movable insert. The diagonal rod passes through the rear mold core and the rear mold base and extends below the rear mold base; the ejector plate is provided with a rotating assembly, and the lower end of the diagonal rod is connected to the rotating assembly; the rotating assembly includes a rotating seat connected to the ejector plate, a rotating member rotatably connected to the rotating seat, and the rotating member is connected to the diagonal rod.

2. The forming die for large-angle inclined roof according to claim 1, characterized in that: The rotating seat is in a "U" shape and includes a base and two vertical plates disposed on the base. The rotating member is connected between the two vertical plates.

3. The forming die for large-angle inclined roof according to claim 2, characterized in that: On one side of the vertical plate facing the middle of the base, a connecting groove is provided. A connecting plate is installed in the connecting groove, and the end of the rotating member is connected to the connecting plate.

4. The forming die for large-angle inclined roof according to claim 1, characterized in that: The rotating member is provided with a plugging groove, and the diagonal rod is plugged in the plugging groove.

5. The forming die for large-angle inclined roof according to claim 1, characterized in that: The rear mold base is provided with a through hole for the diagonal rod to pass through, and a guide plate for guiding the diagonal rod is disposed at the position corresponding to the through hole on the bottom surface of the rear mold base.

6. The forming die for large-angle inclined roof according to claim 5, characterized in that: A concave portion for installing the guide plate is disposed on the bottom surface of the rear mold base.

7. The forming die for large-angle inclined roof according to claim 1, characterized in that: The molding area is provided with guide bars. At the position corresponding to the guide bars on the movable insert, it is recessed inward to form a guiding portion matching the guide bars.

8. The forming die for large-angle inclined roof according to claim 7, characterized in that: Two guide bars are arranged in parallel. The movable insert is connected between the two guide bars. The side of the guide bar facing the movable insert is an inclined surface.

9. The forming die for a large-angle inclined top according to any one of claims 1 to 8, characterized in that: There are two rear mold cores, and two corresponding movable inserts are provided.

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