Sliding block structure for die casting

Abstract

The utility model provides a slide block structure for a die casting, which solves the problem that a slide block head and a fixed mold core in the existing mold are vertically inserted to cause damage, and adopts the main scheme that the slide block structure comprises a fixed mold core plate and a movable mold core plate which are mutually closed, a driving piece, an inclined table with an upward raised tail end and the slide block head are also fixed on one side of the movable mold core plate, a wedge-shaped block is further fixedly embedded in the bottom of the fixed mold core plate, the top face of the inclined table is in smooth contact with the bottom face of the fixed mold core plate, the face, close to the sliding block head, of a protruding part of the inclined table is a vertical plane and fixedly connected with the sliding block head, the face, away from the sliding block head, of the protruding part of the inclined table is an inclined face, and the wedge-shaped block is in wedge-shaped fit with the inclined face. A movable mold core is further embedded in the top of the movable mold core plate, an elastic piece for buffering is arranged on the face, connected with the vertical plane of the sliding block head, of the movable mold core, and the driving piece is used for driving the sliding block head to move in the buffering direction through the elastic piece in a servo mode.

Description

Technical Field

[0001] The utility model relates to the technical field of die casting, in particular to a slider structure for die-cast parts. Background Technique

[0002] In addition to being driven by an inclined guide bar, the sliding of the slider can also be driven by an oil cylinder. The oil cylinder can have a long stroke (which can be selected), large force, and the sequence of its movement can be controlled by an electric circuit in relation to other mold-opening actions. It is more suitable for sliders with longer stroke requirements or larger sizes that require a specific sequence of actions.

[0003] In a common side-core-pulling oil cylinder slider structure, there needs to be a mating angle between the slider head and the fixed mold core. However, when there are special structures in the product that prevent the design of a mating angle, only a vertical insertion can be designed, which easily damages the mold, greatly shortens the mold life, and seriously affects production efficiency. For this reason, we propose a slider structure for die-cast parts to solve the above problems. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the defects existing in the prior art. The utility model proposes a slider structure for die-cast parts that can effectively prevent and reduce the problem of easy collision damage when the core-pulling oil cylinder slider and the fixed mold core are vertically inserted during mold closing, improve the service life and production efficiency of the die-casting mold, and ensure product quality.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is: a slider structure for die-cast parts, including: a fixed mold core plate and a movable mold core plate that are mutually closed. A driving member, an inclined platform with an upward convex end, and a slider head are also fixed on one side of the movable mold core plate. A wedge block is also embedded and fixed at the bottom of the fixed mold core plate. The top surface of the inclined platform is in smooth contact with the bottom surface of the fixed mold core plate. One side of the convex part of the inclined platform close to the slider head is a vertical plane and is fixedly connected to the slider head. The other side of its convex part away from the slider head is an inclined surface. The wedge block is in wedge fit with the inclined surface. A movable mold core is also embedded at the top of the movable mold core plate. An elastic member is arranged on the surface of the movable mold core that is in contact with the vertical plane of the slider head for buffering. The driving member is used to servo-drive the slider head to move with the buffering of the elastic member.

[0006] Further, the driving member includes an oil cylinder, a positioning plate, a coupling sleeve, and a connecting shaft. A limiting groove is recessed at one end of the inclined platform close to the connecting shaft. One end of the positioning plate is fixedly connected to the oil cylinder, and the other end is fixedly connected to the side end of the movable mold core plate. A telescopic rod is movably connected in the oil cylinder. One end of the connecting shaft is coaxially fixed to the outer end of the telescopic rod through a coupling sleeve, and the other end is embedded in the limiting groove and is spaced from the inner wall of the limiting groove.

[0007] Further, a slide rail is fixed at the top of the moving film core plate corresponding to the inclined platform, and the bottom of the inclined platform is slidably connected to the slide rail.

[0008] Further, the elastic member includes a positioning rod, a sleeve rod, and a spring. The moving film core and the inclined platform are respectively concave with a buffer opening and a mating opening at the bottom. One end of the positioning rod is embedded and fixed at the inner bottom of the buffer opening, and the other end is exposed from the buffer opening and embedded in the mating opening. The sleeve rod is coaxially sleeved on the outer wall of the positioning rod, and the spring is sleeved on the outer wall of the sleeve rod. One end of the spring is fixedly connected to the inner bottom of the buffer opening, and the other end is exposed from the buffer opening and presses against the vertical plane of the inclined platform.

[0009] Further, the distance between the connecting shaft and the inner wall of the limiting groove is set to be greater than the distance between the vertical plane of the inclined platform and the moving film core.

[0010] Further, the distance between the vertical plane of the inclined platform and the moving film core is 0.5 - 1 mm.

[0011] Further, the slope of the inclined surface of the inclined platform corresponds to the distance between the vertical plane of the inclined platform and the moving film core.

[0012] Further, the slider structure is a two-station structure.

[0013] Compared with the prior art, the beneficial effects of the present utility model include: when the slider head and the fixed mold core need to be vertically inserted, to avoid damage, when the slider is closed, the oil cylinder first pushes the slider to a position where there is a certain gap with the mold core and stops, and the spring is used to hold the slider from sliding down. When the moving and fixed molds are closed, finally, the wedge block is used to push the slider to the closed position in place. Through the above structure, the internal loss of the mold is reduced, and the product quality is indirectly guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The disclosure of the present utility model will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present utility model. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0015] Figure 1 Schematically shows an isometric structure diagram proposed according to an embodiment of the present utility model;

[0016] Figure 2 Schematically shows an internal structure diagram of the moving film core plate proposed according to an embodiment of the present utility model;

[0017] Figure 3 Schematically shows an internal cross-sectional view proposed according to an embodiment of the present utility model

[0018] Figure 4Schematically shows the one proposed according to an embodiment of the present utility model Figure 3 Partial enlarged view at position A;

[0019] Figure 5 Schematically shows the schematic diagram of the position of the vertical plane D of the slider head proposed according to an embodiment of the present utility model.

[0020] Reference numerals in the figure: 1, fixed film core plate; 2, moving film core plate; 3, driving member; 31, oil cylinder; 32, positioning plate; 33, coupling sleeve; 34, connecting shaft; 35, limiting groove; 36, telescopic rod; 37, slide rail; 4, inclined platform; 5, slider head; 6, wedge block; 7, inclined surface; 8, moving film core; 9, elastic member; 91, positioning rod; 92, sleeve rod; 93, spring; 94, buffer port; 95, mating port. Specific embodiments

[0021] It is easy to understand that according to the technical solution of the present utility model, without changing the essence of the present utility model, those of ordinary skill in the art can propose various interchangeable structural ways and implementation ways. Therefore, the following specific embodiments and the drawings are only exemplary descriptions of the technical solution of the present utility model, and should not be regarded as all of the present utility model or as a limitation or restriction on the technical solution of the present utility model.

[0022] Combined with an embodiment of the present utility model Figures 1 - 5 Shown as follows.

[0023] In this embodiment, a slider structure for die-castings, firstly, the above slider structure is a double-station structure, and the structures of the two stations are the same. Taking one of the stations as an example, it specifically includes: a fixed film core plate 1 and a moving film core plate 2 that are mutually clamped, and a driving member 3, an inclined platform 4 with an upward convex end, and a slider head 5 are further fixed on one side of the moving film core plate 2. A wedge block 6 is also embedded and fixed at the bottom of the fixed film core plate 1. The top surface of the inclined platform 4 is in smooth contact with the bottom surface of the fixed film core plate 1. One surface of the convex part of the inclined platform 4 close to the slider head 5 is a vertical plane and is fixedly connected to the slider head 5, and the surface of its convex part far from the slider head 5 is an inclined surface 7. The wedge block 6 is in wedge fit with the inclined surface 7. A moving film core 8 is also embedded at the top of the moving film core plate 2. An elastic member 9 is arranged on the surface of the moving film core 8 that is in contact with the vertical plane of the slider head 5 for buffering. The driving member 3 is used to servo-drive the slider head 5 to move with the buffering of the elastic member 9.

[0024] Such as Figure 2 and Figure 3As shown, in some embodiments, the driving member 3 includes an oil cylinder 31, a positioning plate 32, a coupling sleeve 33 and a connecting shaft 34. One end of the inclined table 4 is recessed with a limiting groove 35 near the connecting shaft 34. One end of the positioning plate 32 is fixedly connected to the oil cylinder 31, and the other end is fixedly connected to the side end of the moving film core plate 2. A telescopic rod 36 is movably connected in the oil cylinder 31. One end of the connecting shaft 34 is coaxially fixed to the outer end of the telescopic rod 36 through the coupling sleeve 33, and the other end is embedded in the limiting groove 35 and is spaced from the inner wall of the limiting groove 35. Further, a slide rail 37 is also fixed on the top of the moving film core plate 2 corresponding to the inclined table 4, and the bottom of the inclined table 4 is slidably connected to the slide rail 37.

[0025] As Figure 4 shown, in some embodiments, the elastic member 9 includes a positioning rod 91, a sleeve rod 92 and a spring 93. The moving film core 8 and the inclined table 4 are respectively recessed with a buffer opening 94 and a matching opening 95 at the bottom. One end of the positioning rod 91 is fixedly embedded in the inner bottom of the buffer opening 94, the other end is exposed from the buffer opening 94 and is embedded in the matching opening 95. The sleeve rod 92 is coaxially sleeved on the outer wall of the positioning rod 91. The spring 93 is sleeved on the outer wall of the sleeve rod 92. One end of the spring 93 is fixedly connected to the inner bottom of the buffer opening 94, and the other end is exposed from the buffer opening 94 and presses against the vertical plane of the inclined table 4.

[0026] In actual operation, the selection of the driving member 3 and the elastic member 9 can include various forms, not limited to the above. For example, common pneumatic servo push rods, ball screws, etc. can all achieve the linear pushing process of the driving member 3 as described above.

[0027] Similarly, for the driving adjustment range, in this embodiment, the distance between the connecting shaft 34 and the inner wall of the limiting groove 35 is set to be greater than the distance between the vertical plane of the inclined table 4 and the moving film core 8. The distance between the vertical plane of the inclined table 4 and the moving film core 8 is 0.5 - 1 mm. In this embodiment, the distance is 1 mm. The slope of the inclined surface 7 of the inclined table 4 corresponds to the distance between the vertical plane of the inclined table 4 and the moving film core 8.

[0028] With the above structure, in order to avoid the vertical surface D of the slider head 5 being damaged by inserting and touching the fixed mold core (the fixed mold core is not shown in the figure, and its actual position is above the moving film core 8 and inside the inner cavity of the fixed mold core plate 1), the oil cylinder 31 first pushes the slider head 5 to a position where there is a gap with the fixed mold core; a spring 93 is placed between the inclined table 4 and the moving mold core to ensure that the slider head 5 stays in a fixed position, and then it is pushed to the final position by the wedging force of the wedging block when the moving and fixed molds are closed. During this process, the mating surfaces of the fixed mold core and the slider head 5 only rub against each other, avoiding mutual collision.

[0029] The technical scope of the present utility model is not limited to the content described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present utility model, and these deformations and modifications shall all fall within the protection scope of the present utility model.

Claims

1. A slider structure for die-cast parts, characterized in that Including: A fixed film core plate and a moving film core plate that are mutually clamped. A driving member, an inclined platform with an upwardly convex end, and a slider head are fixed on one side of the moving film core plate. A wedge block is embedded and fixed at the bottom of the fixed film core plate. The top surface of the inclined platform is in smooth contact with the bottom surface of the fixed film core plate. The surface of the convex part of the inclined platform close to the slider head is a vertical plane and is fixedly connected to the slider head. The surface of its convex part away from the slider head is an inclined surface. The wedge block is in wedge fit with the inclined surface. A moving film core is also embedded at the top of the moving film core plate. An elastic member is arranged on the surface of the moving film core that is in contact with the vertical plane of the slider head for buffering. The driving member is used to servo-drive the slider head to move with the buffering of the elastic member.

2. The slider structure for die-cast parts according to claim 1, characterized in that: The driving member includes an oil cylinder, a positioning plate, a coupling sleeve, and a connecting shaft. A limiting groove is recessed at one end of the inclined platform close to the connecting shaft. One end of the positioning plate is fixedly connected to the oil cylinder, and the other end is fixedly connected to the side end of the moving film core plate. A telescopic rod is movably connected in the oil cylinder. One end of the connecting shaft is coaxially fixed to the outer end of the telescopic rod through the coupling sleeve, and the other end is embedded in the limiting groove and is spaced from the inner wall of the limiting groove.

3. The slider structure for die-cast parts according to claim 2, characterized in that: A slide rail is also fixed at the top of the moving film core plate corresponding to the inclined platform. The bottom of the inclined platform is slidably connected to the slide rail.

4. A slider structure for die-cast parts according to claim 2, characterized in that: The elastic member includes a positioning rod, a sleeve rod, and a spring. Buffer ports and mating ports are respectively recessed at the bottoms of the moving film core and the inclined platform. One end of the positioning rod is embedded and fixed at the inner bottom of the buffer port, the other end is exposed from the buffer port and is embedded in the mating port. The sleeve rod is coaxially sleeved on the outer wall of the positioning rod. The spring is sleeved on the outer wall of the sleeve rod. One end of the spring is fixedly connected to the inner bottom of the buffer port, and the other end is exposed from the buffer port and presses against the vertical plane of the inclined platform.

5. The slider structure for die-castings according to claim 3, characterized in that: The spacing distance between the connecting shaft and the inner wall of the limiting groove is set to be greater than the spacing distance between the vertical plane of the inclined platform and the moving film core.

6. A slider structure for die-cast parts according to claim 4, characterized in that: The spacing distance between the vertical plane of the inclined platform and the moving film core is 0.5 - 1 mm.

7. The slider structure for die-cast parts according to claim 5, characterized in that: The slope of the inclined surface of the inclined platform corresponds to the spacing distance between the vertical plane of the inclined platform and the moving film core.

8. A slider structure for die-cast parts according to any one of claims 1-6, characterized in that: The slider structure is a two-station structure.

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