Mould device with ejector plate mechanism in sliding block

Abstract

The invention discloses a mold device with a sliding block containing an ejector plate mechanism. The mold device comprises two molds, the sliding block and a driving mechanism. The mold closing and separating direction of the two molds is a first direction; the sliding block and the two molds are matched to define a mold cavity; a sliding cavity is formed in the sliding block, a sliding hole which is communicated to the inner side wall of the sliding block and is in the second direction is formed in the sliding cavity, an ejector plate mechanism is arranged in the sliding block and comprises an ejector plate and an ejector pin, the ejector plate is arranged in the sliding cavity, the ejector pin extends into the sliding hole, and the ejector plate mechanism and the sliding block can relatively slide in the second direction; the relative sliding stroke of the ejector plate mechanism and the sliding block is smaller than the sliding stroke of the sliding block, and when the sliding block slides outwards for the first stroke, the inner side wall of the sliding block is separated from the product, but the ejector plate mechanism is kept in the state of abutting against the product to avoid deformation of the product. And the sliding block and the ejector plate mechanism slide outwards together in the second stroke of outward sliding so as to take out the product.

Description

TECHNICAL FIELD

[0001] The present application relates to a mold device, in particular to a mold device with a slide block containing a ejector plate mechanism. BACKGROUND

[0002] The prior art mold device includes a first mold and a second mold, the first mold and the second mold are combined to form a mold cavity for molding a product. The mold device with a relatively complex product structure also includes a slide block slidingly connected to the second mold. The combined and separated directions of the first mold and the second mold are the first direction, and the sliding direction of the slide block relative to the second mold is the second direction. The inner side wall of the slide block, the first mold and the second mold cooperate to form a mold cavity for molding a product. During the mold separation process after molding: the first mold and the second mold are separated, the slide block slides outward, and the product may be deformed due to the removal of the support of the slide block, especially when the product has a deep hole, groove or rib corresponding to the side wall of the slide block. SUMMARY

[0003] The present application provides a mold device with a slide block containing an ejector plate mechanism, which overcomes the shortcomings of the mold device in the background art.

[0004] The technical solution adopted by the present application to solve its technical problems is: a mold device with a slide block containing an ejector plate mechanism, including a first mold (1) and a second mold (2), the first mold (1) and the second mold (2) are combined and separated in the first direction; further comprising a slide block (3) slidingly connected to the second mold (2) in the second direction and a driving mechanism (4) for driving the slide block (3) to slide; the inner side wall (331) of the slide block (3), the first mold (1) and the second mold (2) cooperate to form a mold cavity (5) for molding a product (7); the slide block (3) is provided with a sliding cavity (31), a first inner cavity wall (311) of the sliding cavity (31) facing away from the mold cavity (5) is provided with a sliding hole (32) extending to the inner side wall (331) and in the second direction, the slide block (3) is provided with an ejector plate mechanism (6), the ejector plate mechanism (6) includes an ejector plate (61) and a ejector pin (62) fixedly arranged on the ejector plate (61), the ejector plate (61) is arranged in the sliding cavity (31), the ejector pin (62) extends into the sliding hole (32), the ejector plate mechanism (6) and the slide block (3) can slide relative to each other in the second direction, and the relative sliding stroke of the ejector plate mechanism (6) and the slide block (3) is less than the sliding stroke of the slide block (3).

[0005] The driving mechanism (4) includes a inclined rod (41) fixedly connected to the first mold (1) and an inclined hole (42) arranged in the slide block (3), the inclined rod (41) is adapted to be slidingly inserted into the inclined hole (42), and the driving mechanism (4) drives the slide block (3) to slide outward during the mold separation process.

[0006] The second direction and the first direction are arranged perpendicularly.

[0007] The second mold (2) is provided with two left-right symmetrical sliders (3), each slider (3) is provided with a driving mechanism (4); the slider (3) is provided with a plurality of sliding holes (32), the number of the ejector pin (62) is equal to the number of the sliding hole (32).

[0008] The sliding stroke of the slider (3) outward from the mold is divided into a first stroke and a second stroke adjacent to the inside and outside;

[0009] In the first stroke, the slider (3) slides outward relative to the ejector pin plate mechanism (6) until the first inner cavity wall (311) of the slider (3) abuts against the ejector pin plate (61), and the ejector pin (62) remains in the supporting position of the product (7);

[0010] In the second stroke, the first inner cavity wall (311) of the slider (3) abuts against the ejector pin plate (61) to drive the slider (3) and the ejector pin plate (61) to slide outward together, and the ejector pin (62) leaves the supporting position.

[0011] The second inner cavity wall (312) of the sliding cavity (31) facing the first inner cavity wall (311) is provided with a clearance hole (34) passing through the outer side wall (332) of the slider (3); the side wall of the ejector pin plate (61) opposite to the ejector pin (62) is fixedly provided with a top post (63), the top post (63) penetrates the clearance hole (34); the first mold (1) is fixedly provided with a retaining arm (11), the retaining arm (11) is provided with a matching part (12), the matching part (12) is provided with a retaining surface (121) parallel to the first direction; in the first stroke, the retaining surface (121) of the retaining arm (11) abuts against the end of the top post (63) to make the ejector pin (62) remain in the supporting position, and in the second stroke, the retaining surface (121) of the retaining arm (11) is offset from the top post (63) to release the abutment.

[0012] The matching part (12) includes a groove opened in the side wall of the retaining arm (11) facing the slider (3), and the groove is provided with the retaining surface (121) mentioned above.

[0013] The groove is a triangular groove, and the triangular groove has two groove walls, one of which constitutes the retaining surface (121) mentioned above.

[0014] The side wall of the retaining arm (11) is a first inclined wall (111), the outer side wall (332) of the slider (3) is a second inclined wall, the first inclined wall (111) and the second inclined wall are adapted to abut, and the inclination angles of the first inclined wall (111) and the second inclined wall are equal to the inclination angles of the inclined rod (41) and the inclined hole (42).

[0015] The first mold (1) and the second mold (2) are arranged above and below, and the end surface of the top post (63) includes an inclined surface parallel to the first inclined wall (111) and a vertical surface connected below the inclined surface.

[0016] The technical scheme has the following advantages compared with the prior art.

[0017] The sliding cavity is arranged in the sliding block, the sliding cavity is provided with a sliding hole, the ejector plate mechanism and the sliding block can slide relative to each other in the second direction, the ejector plate is arranged in the sliding cavity, the ejector pin extends into the sliding hole, the sliding stroke of the ejector plate mechanism and the sliding block relative to each other is smaller than the sliding stroke of the sliding block, the inner side wall of the sliding block is separated from the product in the first stroke of the sliding block sliding outwards, but the ejector plate mechanism remains in the state of abutting against the product to avoid deformation of the product, and the sliding block and the ejector plate mechanism slide outwards together in the second stroke of the sliding block sliding outwards, so that the product is taken out.

[0018] The sliding block slides outwards relative to the ejector plate mechanism in the first stroke until the first inner cavity wall of the sliding block abuts against the ejector plate, and the first inner cavity wall of the sliding block abuts against the ejector plate to drive the sliding block and the ejector plate to slide outwards together in the second stroke, so that the driving mechanism can simultaneously realize the first stroke and the second stroke, the structure is simple, and control is convenient.

[0019] The first mold is fixedly provided with a retaining arm, the retaining arm is provided with a matching part, the matching part is provided with a retaining surface parallel to the first direction, the retaining surface of the retaining arm abuts against the end of the ejector post to keep the ejector pin in the supporting position when the sliding block slides outwards under the driving of the driving mechanism during mold opening, so that the ejector pin is kept in the supporting state in the first stroke, and the ejector post abuts against the product to be taken out is released in the second stroke, so that the ejector plate can slide outwards together with the sliding block, the structure is simple, and control is convenient.

[0020] The groove is a triangular groove, the triangular groove has two groove walls, and one groove wall forms the retaining surface, the structure is simple and compact.

[0021] The first inclined wall of the retaining arm and the second inclined wall of the sliding block are adapted to abut against each other, the inclination angles of the first inclined wall and the second inclined wall are equal to the inclination angles of the inclined rod and the inclined hole, the guiding effect is good, and the groove matched with the ejector post can be arranged, and the structure is compact. BRIEF DESCRIPTION OF DRAWINGS

[0022] The application will be further described below in combination with the drawings and specific embodiments.

[0023] Figure 1 is a three-dimensional schematic view of a product formed by the mold device of the specific embodiment Figure 1 .

[0024] Figure 2 is a three-dimensional schematic view of a product formed by the mold device of the specific embodiment Figure 2 .

[0025] Figure 3 is one of the front views of the mold device of the specific embodiment, and is in the mold closing position.

[0026] Figure 4 is the second front view of the mold device of the specific embodiment, and is in the mold opening position.

[0027] Figure 5 is a specific embodiment of the first mold, the second mold and the slider cooperation of the partial perspective view.

[0028] Figure 6 is a specific embodiment of the first mold, the second mold and the slider cooperation of the partial perspective view.

[0029] Figure 7 is a specific embodiment of the first mold, the second mold and the slider cooperation of the partial perspective view.

[0030] Label explanation: the first mold 1, the retaining arm 11, the first inclined wall 111, the cooperation part 12, the retaining surface 121; the second mold 2; the slider 3, the sliding cavity 31, the first inner cavity wall 311, the second inner cavity wall 312, the sliding hole 32, the inner side wall 331, the outer side wall 332, the let go of the hole 34; the drive mechanism 4, the inclined rod 41, the inclined hole 42; the mold cavity 5; the ejector plate mechanism 6, the ejector plate 61, the ejector pin 62, the top column 63; the product 7. Specific embodiment

[0031] Please see Figures 1 to 2 , the product 7 formed by the mold device of the specific embodiment, including a horizontal plate 71 and two vertical plates 72 respectively fixed on both sides of the horizontal plate 71, a vertical plate 72 is formed with a hole 721, a groove 722 and a first rib 723, etc., the other vertical plate 72 is formed with a second rib 724, etc., the depth of the hole 721, the groove 722, the first and second ribs 723, 724 is relatively deep, below with the product of forming Figure 1 、 2 is described, but not limited thereto.

[0032] Please see Figures 3 to 7 , the mold device, including the first mold 1, the second mold 2, the slider 3 sliding along the second direction in the second mold 2 and the drive mechanism 4 driving the slider 3 to slide; the first mold 1 and the second mold 2 are combined in the first direction, such as the upward and downward direction of the specific embodiment, then the above-mentioned second direction is the horizontal direction. The second mold 2 is provided with two left and right symmetrical sliders 3, and each slider 3 is provided with a drive mechanism 4. The inner side wall 331 of the two sliders 3, the first mold 1 and the second mold 2 cooperate to form a mold cavity 5 for forming the product 7.

[0033] The slider 3 is provided with a sliding cavity 31, a plurality of sliding holes 32 are formed in a first inner cavity wall 311 of the sliding cavity 31 and extend to an inner side wall 331 and along a second direction, the slider 3 is provided with a ejector plate mechanism 6, the ejector plate mechanism 6 comprises an ejector plate 61 and a plurality of ejector pins 62 fixedly arranged on the ejector plate 61, the ejector plate 61 is adapted to slide in the sliding cavity 31 along the second direction, the ejector pins 62 are adapted to slide into the sliding holes 32 along the second direction, the ejector plate mechanism 6 and the slider 3 are adapted to slide relative to each other along the second direction, the relative sliding stroke of the ejector plate mechanism 6 and the slider 3 is less than the sliding stroke of the slider 3 (the distance between the two extreme positions).

[0034] The sliding stroke of the slider 3 along the mold opening direction is divided into a first stroke and a second stroke adjacent to the first stroke, in the first stroke, the slider 3 slides outward relative to the ejector plate mechanism 6 until the first inner cavity wall 311 of the slider 3 abuts against the ejector plate 61, the ejector pins 62 remain in the supporting position of supporting the product 7, the relative sliding stroke of the ejector plate mechanism 6 and the slider 3 is equal to the first stroke, in the second stroke, the first inner cavity wall 311 of the slider 3 abuts against the ejector plate 61 to drive the slider 3 and the ejector plate 61 to slide outward together, the ejector pins 62 move away from the supporting position.

[0035] The driving mechanism 4 comprises a inclined rod 41 fixedly arranged on the first mold 1 and a inclined hole 42 arranged on the slider 3, the inclined rod 41 is adapted to slide into the inclined hole 42, the driving mechanism 4 drives the slider 3 to slide outward during the mold opening process.

[0036] A clearance hole 34 is formed in a second inner cavity wall 312 of the sliding cavity 31 and extends to an outer side wall 332 of the slider 3, a side wall of the ejector plate 61 opposite to the ejector pins 62 is provided with a top post 63, the top post 63 penetrates into the clearance hole 34, the first mold 1 is provided with a retaining arm 11, the retaining arm 11 is provided with a cooperating part 12, the cooperating part 12 is provided with a retaining surface 121 parallel to the first direction, in the first stroke, the retaining surface 121 of the retaining arm 11 abuts against the end of the top post 63 to keep the ejector pins 62 in the supporting position, in the second stroke, the retaining surface 121 of the retaining arm 11 is disengaged from the top post 63. The cooperating part 12 comprises a groove formed in a side wall of the retaining arm 11 facing the slider 3, the groove is provided with the retaining surface 121. The groove is a triangular groove, the triangular groove has two groove walls, one groove wall constitutes the retaining surface 121. The side wall of the retaining arm 11 is a first inclined wall 111, the outer side wall 332 of the slider 3 is a second inclined wall, the first inclined wall 111 and the second inclined wall are adapted to abut against each other, the inclination angle of the first inclined wall 111 and the second inclined wall is equal to the inclination angle of the inclined rod 41 and the inclined hole 42. In the specific embodiment, the ejector pins are kept in the supporting position by the abutment between the top post and the retaining surface, but it is not limited thereto, according to the needs, a elastic body can also be arranged in the sliding cavity of the ejector plate to achieve the retaining.

[0037] The lower end of the retaining surface 121 is located at the lower end of the retaining arm 11, or near the lower end, but the end face of the top post 63 includes an inclined surface parallel to the first inclined wall 111 and a vertical surface connected to the inclined surface.

[0038] The mold parting process of the mold device is as follows: 1. Figure 3 and Figure 6 , Figure 7 The first mold 1 moves upward, and the inclined rod 41 and inclined hole 42 of the drive mechanism 4 cooperate to drive the slider 3 to slide outward; 2.1 During the first stroke of the slider 3 sliding outward: the slider 3 slides outward relative to the ejector plate mechanism 6, and the ejector pin 63 of the ejector plate mechanism 4 is held in the support position by the support surface 121 of the retaining arm 11 (the retaining arm 11 slides upward with the first mold 1, and although the side wall of the retaining arm 11 is an inclined wall, the groove wall of the groove is a surface parallel to the first direction, i.e., the retaining surface, so the retaining surface 121 is always a vertical surface during the first stroke); 2.2 As Figure 4 During the second stroke of the slider 3 sliding outward: the first inner cavity wall 311 of the slider 3 abuts against the ejector plate 61, while the surface 121 is offset from the ejector pin 63, i.e., the abutment of the ejector pin 63 is released, and the ejector plate mechanism 6 can slide outward, driving the slider 3 and the ejector plate 61 to slide outward together; 3. Figure 5 The ejector mechanism located in the second mold 2 slides upward to eject the product 7.

[0039] The above description is merely a preferred embodiment of the present invention, and therefore should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the patent and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A mold device with a pin plate mechanism in a slider, comprising a first mold (1) and a second mold (2), the first mold (1) and the second mold (2) being in a first direction in a mold opening and closing direction; characterized in that: Also comprising a slider (3) slidingly connected to the second mold (2) along a second direction and a driving mechanism (4) driving the slider (3) to slide; an inner side wall (331) of the slider (3), the first mold (1) and the second mold (2) cooperatively forming a mold cavity (5) for molding a product (7); a sliding cavity (31) is arranged in the slider (3), a first inner cavity wall (311) of the sliding cavity (31) facing away from the mold cavity (5) is provided with a sliding hole (32) extending to the inner side wall (331) and along the second direction, a ejector plate mechanism (6) is arranged in the slider (3), the ejector plate mechanism (6) comprises an ejector plate (61) and an ejector pin (62) fixed to the ejector plate (61), the ejector plate (61) is arranged in the sliding cavity (31), the ejector pin (62) extends into the sliding hole (32), the ejector plate mechanism (6) and the slider (3) can slide relative to each other along the second direction, the relative sliding stroke of the ejector plate mechanism (6) and the slider (3) is less than the sliding stroke of the slider (3).

2. The mold apparatus of claim 1, wherein: The driving mechanism (4) comprises a inclined rod (41) fixed to the first mold (1) and a inclined hole (42) arranged in the slider (3), the inclined rod (41) is adapted to slidingly inserted into the inclined hole (42), during the mold opening process, the driving mechanism (4) drives the slider (3) to slide outward.

3. The mold apparatus of claim 1, wherein: The second direction and the first direction are arranged perpendicularly.

4. The mold apparatus of claim 1, wherein: The second mold (2) is provided with two sliders (3) arranged symmetrically left and right, each slider (3) is provided with a driving mechanism (4); the slider (3) is provided with a plurality of sliding holes (32), the number of the ejector pins (62) is equal to the number of the sliding holes (32).

5. The mold apparatus of claim 2, wherein: The sliding stroke of the slider (3) during the mold opening is divided into an inner first stroke and an outer second stroke; In the first stroke: the slider (3) slides outward relative to the ejector plate mechanism (6) until the first inner cavity wall (311) of the slider (3) abuts against the ejector plate (61), the ejector pin (62) remains in a supporting position supporting the product (7); In the second stroke: the first inner cavity wall (311) of the slider (3) abuts against the ejector plate (61) to drive the slider (3) and the ejector plate (61) to slide outward together, the ejector pin (62) leaves the supporting position.

6. The mold apparatus of claim 5, wherein: A second inner cavity wall (312) of the sliding cavity (31) facing the first inner cavity wall (311) is provided with a clearance hole (34) extending to an outer side wall (332) of the slider (3); a side wall of the ejector plate (61) facing away from the ejector pin (62) is fixed with a top post (63), the top post (63) penetrates into the clearance hole (34); the first mold (1) is fixed with a retaining arm (11), the retaining arm (11) is provided with a cooperating part (12), the cooperating part (12) is provided with a retaining surface (121) parallel to the first direction; in the first stroke, the retaining surface (121) of the retaining arm (11) abuts against the end of the top post (63) to keep the ejector pin (62) in the supporting position, in the second stroke, the retaining surface (121) of the retaining arm (11) is offset from the top post (63) to release the abutment.

7. The mold apparatus of claim 6, wherein: The cooperating part (12) comprises a groove opened in a side wall of the retaining arm (11) facing the slider (3), the groove is provided with the above-mentioned retaining surface (121).

8. The mold apparatus of claim 7, wherein: The recess is a triangular groove having two groove walls, one of which constitutes the holding surface (121).

9. The mold apparatus of claim 7, wherein: The side wall of the holding arm (11) is a first inclined wall (111), and the outer side wall (332) of the slider (3) is a second inclined wall, the first inclined wall (111) and the second inclined wall are adapted to abut, and the inclination angles of the first inclined wall (111) and the second inclined wall are equal to the inclination angles of the inclined rod (41) and the inclined hole (42).

10. The mold apparatus of claim 9, wherein: The first mold (1) and the second mold (2) are arranged in an up-down manner, and the end face of the top column (63) comprises an inclined face parallel to the first inclined wall (111) and a vertical face connected to the inclined face.

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