Multi-angle ejector ejection mechanism of plastic sorting box injection mold

Abstract

The utility model belongs to the technical field of molds, and relates to a multi-pitched roof ejection mechanism of a plastic sorting box injection mold. The injection molding device comprises a lower injection molding die, and four plastic sorting box forming sliding plates which are respectively arranged in a rectangular array along the central point of the lower injection molding die and are mutually enclosed are arranged on the lower injection molding die. In the injection molding process, the four plastic sorting box forming sliding plates define the cavity, the plastic sorting box wall surface auxiliary forming piece assists in forming the wall surface structure of the plastic sorting box on one hand and can be matched with the upper mold for alignment mold assembly on the other hand, and after injection molding is completed, the inclined ejection assembly is moved upwards, and the injection molding efficiency is improved through the inclined structure. The four plastic sorting box forming sliding plates are driven to obliquely upwards in a four-side blooming mode to conduct inclined ejection demolding, demolding can be better conducted on the plastic sorting box forming sliding plates and formed plastic parts, a wider taking-out space is formed, workers can take out the plastic parts conveniently, and the problem that adhesion occurs or the operation space is small is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a multi-oblique ejector mechanism for an injection mold of a plastic storage box. Background Art

[0002] An injection mold is a tool for producing plastic products; it is also a tool for endowing plastic products with a complete structure and precise dimensions, specifically referring to injecting a heat-melted material into a mold cavity under high pressure and obtaining a formed product after cooling and solidification. For example, an injection mold for a storage box used to produce a storage box mainly consists of a moving mold and a fixed mold. The moving mold is installed on the moving template of an injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. During injection molding, the moving mold and the fixed mold are closed to form a gating system and a cavity, and when the mold is opened, the moving mold and the fixed mold are separated to take out the plastic product. Currently, in the injection molding process of common plastic storage box injection molds, since the wall surface of the plastic part is not completely smooth, some concave structures are required on the wall surface of some plastic parts. Therefore, when using a straight ejector structure for ejection, on the one hand, there will be problems such as jamming, small operating space, and difficulty in taking out, and on the other hand, it will damage the surface of the plastic part and affect the overall quality of the plastic part. Therefore, there is an urgent need to design a multi-oblique ejector mechanism for a plastic storage box injection mold that can overcome the above defects.

[0003] In order to overcome the deficiencies of the prior art, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a flashless precision injection molding mold for a plastic storage box [Application No.: 202223596113.1], which includes an upper template and a lower template. An intermediate plate is installed on the upper edge of the upper template. There are four groups of intermediate plates, and the four groups of intermediate plates are fixedly installed in pairs on the upper edge of the upper template. An upper bottom plate is fixedly installed above the intermediate plate through a limit screw. A hot runner system is installed in the area surrounded by the intermediate plates. The hot runner system includes a hot runner cylinder and a cylinder mounting block. The cylinder mounting block is installed on the upper template through a limit screw. A cavity is formed between the upper template and the lower template. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a multi-oblique ejector mechanism for an injection mold of a plastic storage box in view of the above problems.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A multi-inclined ejector mechanism for an injection mold of a plastic storage box, including an injection lower mold. Four plastic storage box forming slides are arranged on the injection lower mold, which are respectively and mutually enclosed in a rectangular array along the center point of the injection lower mold. Two adjacent plastic storage box forming slides are closely attached to each other. A plastic storage box wall surface auxiliary forming part is arranged inside the plastic storage box forming slide. An inclined ejector component that is in snap-fit connection with the outside of the plastic storage box forming slide is arranged in the injection lower mold, and the inclined ejector component is inclined.

[0007] In the above-mentioned multi-inclined ejector mechanism for an injection mold of a plastic storage box, the inclined ejector component includes a plurality of inclined ejector blocks arranged on the injection lower mold, and the inclined ejector blocks are connected to the plastic storage box forming slides through snap-fit parts.

[0008] In the above-mentioned multi-inclined ejector mechanism for an injection mold of a plastic storage box, the snap-fit part includes a snap-fit sleeve arranged on the outside of the plastic storage box forming slide. The inclined ejector block is in snap-fit connection with the snap-fit sleeve, and the inclined ejector block is inclined.

[0009] In the above-mentioned multi-inclined ejector mechanism for an injection mold of a plastic storage box, a driving oil cylinder is arranged below the inclined ejector block. The power shaft of the driving oil cylinder is connected to the inclined ejector block, and the axis line of the driving oil cylinder coincides with the center line of the inclined ejector block.

[0010] In the above-mentioned multi-inclined ejector mechanism for an injection mold of a plastic storage box, the plastic storage box wall surface auxiliary forming part includes a wall surface auxiliary forming connecting block arranged inside the plastic storage box forming slide. A wall surface concave part forming protrusion is arranged on the side of the wall surface auxiliary forming connecting block close to the plastic storage box forming slide. A forming gap is formed between the wall surface concave part forming protrusion and the inner side surface of the plastic storage box forming slide.

[0011] In the above-mentioned multi-inclined ejector mechanism for an injection mold of a plastic storage box, the wall surface auxiliary forming connecting block is connected to the plastic storage box forming slide through a connecting part.

[0012] In the above-mentioned multi-inclined ejector mechanism for an injection mold of a plastic storage box, the connecting part includes a first connecting cross plate and a second connecting cross plate arranged at the bottom of the wall surface auxiliary forming connecting block. The length of the first connecting cross plate is greater than the length of the second connecting cross plate.

[0013] In the above-mentioned multi-inclined ejector mechanism for an injection mold of a plastic storage box, a cross plate alignment embedding platform is arranged in the injection lower mold. The first connecting cross plate and the second connecting cross plate are respectively in snap-fit connection with the cross plate alignment embedding platform.

[0014] In the above-mentioned multi-inclined ejector mechanism for an injection mold of a plastic storage box, two alignment vertical bars are arranged on the side of the wall surface auxiliary forming connecting block far from the plastic storage box forming slide.

[0015] In the multi-angled ejector mechanism of the above-mentioned injection mold for plastic storage boxes, two adjacent alignment vertical bars are parallel to each other.

[0016] Compared with the existing technology, the advantages of the present utility model are as follows:

[0017] 1. During the injection molding process of the present utility model, four plastic storage box forming slides enclose to form a chamber. On the one hand, the plastic storage box wall auxiliary forming part assists in forming the wall structure of the plastic storage box, and on the other hand, it can cooperate with the upper mold for alignment and mold closing. After the injection molding is completed, the angled ejector assembly is moved upward. Through the inclined structure, the four plastic storage box forming slides are driven to eject obliquely upward in a four-way blooming form, which can better demold the plastic storage box forming slides from the molded plastic parts, forming a relatively spacious extraction space, facilitating the staff to take out the plastic parts, and avoiding problems such as adhesion or a small operation space.

[0018] 2. The alignment vertical bars in the present utility model are used for aligning with the upper mold structure during mold closing, with high mold closing accuracy. Two adjacent alignment vertical bars are parallel to each other, and no jamming occurs during mold closing.

[0019] Other advantages, objectives, and features of the present utility model will be partially reflected by the following description, and partially will be understood by those skilled in the art through the research and practice of the present utility model. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the present utility model.

[0021] Figure 2 is a partial structural diagram of the present utility model.

[0022] Figure 3 is a partial structural diagram of the present utility model in another direction.

[0023] Figure 4 is a partial structural diagram of the present utility model in another direction.

[0024] In the figure: injection mold lower die 1, plastic storage box forming slide 2, plastic storage box wall auxiliary forming part 3, angled ejector assembly 4, angled block 5, clamping part 6, clamping sleeve 7, driving oil cylinder 8, wall auxiliary forming connecting block 9, wall concave part forming protrusion 10, connecting part 11, first connecting cross plate 12, second connecting cross plate 13, cross plate alignment embedding table 14, alignment vertical bar 15. Detailed Embodiment

[0025] The present utility model will be further described below with reference to the drawings.

[0026] As Figures 1-4As shown in the figure, a multi-slant-lift ejection mechanism for an injection mold of a plastic storage box includes an injection lower mold 1. Four plastic storage box forming slides 2 are arranged on the injection lower mold 1 in a rectangular array along the center point of the injection lower mold 1 and enclose each other. Two adjacent plastic storage box forming slides 2 are closely attached to each other. A plastic storage box wall surface auxiliary forming part 3 is arranged inside the plastic storage box forming slide 2. An inclined-lift ejection assembly 4 that is engaged and matched with the outside of the plastic storage box forming slide 2 is arranged inside the injection lower mold 1. The inclined-lift ejection assembly 4 is inclinedly arranged.

[0027] In this embodiment, during the injection process, the four plastic storage box forming slides 2 enclose to form a cavity. The plastic storage box wall surface auxiliary forming part 3, on the one hand, assists in forming the wall surface structure of the plastic storage box, and on the other hand, can cooperate with the upper mold for alignment and clamping. After the injection is completed, the inclined-lift ejection assembly 4 is moved upward. Through the inclined structure, the four plastic storage box forming slides 2 are driven to perform inclined-lift demolding in a form of blooming in all directions obliquely upward, which can better demold the plastic storage box forming slide 2 from the molded plastic part, forming a relatively spacious taking-out space, facilitating the staff to take out the plastic part, and avoiding problems such as adhesion or a small operation space.

[0028] Combined with Figures 1-4 As shown in the figure, the inclined-lift ejection assembly 4 includes a plurality of inclined blocks 5 arranged on the injection lower mold 1. The inclined block 5 is connected to the plastic storage box forming slide 2 through a clamping part 6.

[0029] Specifically, after the injection is completed, the inclined block 5 is moved upward. Through the inclined structure, the four plastic storage box forming slides 2 are driven to perform inclined-lift demolding in a form of blooming in all directions obliquely upward, which can better demold the plastic storage box forming slide 2 from the molded plastic part, forming a relatively spacious taking-out space, facilitating the staff to take out the plastic part, and avoiding problems such as adhesion or a small operation space.

[0030] The clamping part 6 includes a clamping sleeve 7 arranged on the outside of the plastic storage box forming slide 2. The inclined block 5 is engaged and matched with the clamping sleeve 7. The inclined block 5 is inclinedly arranged.

[0031] In this embodiment, the inclined block 5 is engaged and matched with the clamping sleeve 7. When the inclined block 5 moves, the plastic storage box forming slide 2 can be synchronously driven to perform an oblique movement through the clamping sleeve 7.

[0032] Combined with Figure 3 、 Figure 4 As shown in the figure, a driving oil cylinder 8 is arranged below the inclined block 5. The power shaft of the driving oil cylinder 8 is connected to the inclined block 5. The axis line of the driving oil cylinder 8 coincides with the center line of the inclined block 5.

[0033] In this embodiment, the angled ejector block 5 is driven by a driving oil cylinder 8, with a relatively high degree of automation. The axis line of the driving oil cylinder 8 coincides with the center line of the angled ejector block 5 to ensure an angled movement during movement.

[0034] The plastic storage box wall surface auxiliary forming part 3 includes a wall surface auxiliary forming connecting block 9 arranged inside the forming slide plate 2 of the plastic storage box. A wall surface concave part forming protrusion 10 is provided on one side of the wall surface auxiliary forming connecting block 9 close to the forming slide plate 2 of the plastic storage box. A forming gap is formed between the wall surface concave part forming protrusion 10 and the inner side surface of the forming slide plate 2 of the plastic storage box.

[0035] In this embodiment, during the injection molding process, four forming slide plates 2 of the plastic storage box enclose to form a chamber. The wall surface auxiliary forming connecting block 9 on the one hand assists in forming the wall surface structure of the plastic storage box, and on the other hand can cooperate with the upper mold for alignment and clamping. Among them, the wall surface concave part forming protrusion 10 can simultaneously form the concave part at the wall surface of the plastic part.

[0036] Combined with Figures 2-4 As shown, the wall surface auxiliary forming connecting block 9 and the forming slide plate 2 of the plastic storage box are connected by a connecting piece 11. The connecting piece 11 includes a first connecting cross plate 12 and a second connecting cross plate 13 arranged at the bottom of the wall surface auxiliary forming connecting block 9. The length of the first connecting cross plate 12 is greater than the length of the second connecting cross plate 13.

[0037] In this embodiment, the wall surface auxiliary forming connecting block 9 and the forming slide plate 2 of the plastic storage box are connected by the first connecting cross plate 12 and the second connecting cross plate 13, with relatively good fixing performance.

[0038] Combined with Figures 1-4 As shown, a cross plate alignment socket 14 is provided inside the injection molding lower mold 1. The first connecting cross plate 12 and the second connecting cross plate 13 are respectively engaged and matched with the cross plate alignment socket 14.

[0039] In this embodiment, during injection molding, the first connecting cross plate 12 and the second connecting cross plate 13 are respectively engaged and matched with the cross plate alignment socket 14 to ensure that the wall surface auxiliary forming connecting block 9 moves to an accurate position with precise positioning.

[0040] Combined with Figures 1-4 As shown, two alignment vertical bars 15 are provided on one side of the wall surface auxiliary forming connecting block 9 away from the forming slide plate 2 of the plastic storage box.

[0041] In this embodiment, the alignment vertical bars 15 are used for alignment with the upper mold structure during mold clamping, with a high mold clamping accuracy.

[0042] Combined with Figure 4 As shown, two adjacent alignment vertical bars 15 are parallel to each other.

[0043] In this embodiment, two adjacent alignment vertical bars 15 are parallel to each other, and there will be no jamming when the mold is closed.

[0044] The working principle of the utility model is as follows:

[0045] During the injection molding process, four plastic storage box forming slides 2 enclose to form a chamber. The wall auxiliary forming connecting block 9 on one hand assists in forming the wall structure of the plastic storage box, and on the other hand can cooperate with the upper mold for alignment and mold closing. Among them, the wall concave part forming protrusion 10 can simultaneously form the concave part at the wall surface of the plastic part. After the injection molding is completed, the lifter 5 is moved upward. Through the inclined structure, the four plastic storage box forming slides 2 are driven to move obliquely upward in a four-way blooming form for lifter demolding, which can better demold the plastic storage box forming slides 2 from the formed plastic part, forming a relatively spacious taking-out space, facilitating the staff to take out the plastic part, and avoiding problems such as adhesion or a small operating space.

[0046] The lifter 5 is engaged and cooperated with the clamping sleeve 7. When the lifter 5 moves, the plastic storage box forming slides 2 can be synchronously driven to move obliquely through the clamping sleeve 7.

[0047] The lifter 5 is driven by the driving oil cylinder 8, with a high degree of automation. The axis line of the driving oil cylinder 8 coincides with the center line of the lifter 5 to ensure that it moves obliquely when moving.

[0048] The wall auxiliary forming connecting block 9 and the plastic storage box forming slides 2 are connected by the first connecting cross plate 12 and the second connecting cross plate 13, with good fixing performance.

[0049] During injection molding, the first connecting cross plate 12 and the second connecting cross plate 13 are respectively engaged and cooperated with the cross plate alignment socket 14 to ensure that the wall auxiliary forming connecting block 9 moves to the accurate position with high positioning accuracy.

[0050] The alignment vertical bars 15 are used for alignment with the upper mold structure when the mold is closed, with high mold closing accuracy. Two adjacent alignment vertical bars 15 are parallel to each other, and there will be no jamming when the mold is closed.

[0051] The specific embodiments described herein are merely illustrative of the spirit of the utility model. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the utility model.

[0052] Although terms such as injection molding lower die 1, plastic storage box forming slide plate 2, plastic storage box wall surface auxiliary forming part 3, inclined ejector assembly 4, inclined ejector block 5, clamping part 6, clamping sleeve 7, driving oil cylinder 8, wall surface auxiliary forming connecting block 9, wall surface concave part forming protrusion 10, connecting part 11, first connecting cross plate 12, second connecting cross plate 13, cross plate alignment embedding platform 14, alignment vertical bar 15, etc. are used more in this text, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the present utility model, and interpreting them as any kind of additional restriction is contrary to the spirit of the present utility model.

Claims

1. A multi-slope ejector mechanism for a plastic storage box injection mold, comprising an injection lower mold (1), characterized in that: The injection molding lower mold (1) is provided with four plastic storage box forming slide plates (2) which are arranged in a rectangular array along the center point of the injection molding lower mold (1) and surround each other. Two adjacent plastic storage box forming slide plates (2) are tightly fitted. The inner side of the plastic storage box forming slide plates (2) is provided with a plastic storage box wall auxiliary forming part (3). The injection molding lower mold (1) is provided with an inclined top ejection component (4) which is snap-fitted with the outer side of the plastic storage box forming slide plates (2). The inclined top ejection component (4) is arranged in an inclined manner.

2. The multi-slope ejector mechanism for the plastic storage box injection mold according to claim 1, characterized in that: The inclined ejection assembly (4) comprises a plurality of inclined ejection blocks (5) arranged on the lower injection mold (1); the inclined ejection blocks (5) are connected to the plastic storage box forming slide plate (2) via a clamping piece (6).

3. The multi-slope ejector mechanism for the plastic storage box injection mold according to claim 2, characterized in that: The clamping member (6) comprises a clamping sleeve (7) arranged on the outside of the plastic storage box forming slide plate (2), the inclined top block (5) is clamped and matched with the clamping sleeve (7), and the inclined top block (5) is arranged in an inclined manner.

4. The multi-slope ejector mechanism for the plastic storage box injection mold according to claim 3, characterized in that: A driving cylinder (8) is provided below the inclined ejector block (5); a power shaft of the driving cylinder (8) is connected to the inclined ejector block (5); and an axis line of the driving cylinder (8) coincides with a center line of the inclined ejector block (5).

5. The multi-slope ejector mechanism for the plastic storage box injection mold according to claim 4, characterized in that: The wall auxiliary molding part (3) of the plastic storage box comprises a wall auxiliary molding connecting block (9) arranged on the inner side of the plastic storage box molding slide plate (2); the wall auxiliary molding connecting block (9) is provided with a wall concave molding protrusion (10) on the side close to the plastic storage box molding slide plate (2); and a molding gap is formed between the wall concave molding protrusion (10) and the inner side surface of the plastic storage box molding slide plate (2).

6. The multi-slope ejector mechanism for the plastic storage box injection mold according to claim 5, characterized in that: The wall surface auxiliary forming connecting block (9) and the plastic storage box forming slide plate (2) are connected via a connecting piece (11).

7. The multi-slope ejector mechanism for the plastic storage box injection mold according to claim 6, characterized in that: The connecting member (11) comprises a first connecting transverse plate (12) and a second connecting transverse plate (13) which are arranged at the bottom of the wall auxiliary forming connecting block (9), and the length of the first connecting transverse plate (12) is greater than the length of the second connecting transverse plate (13).

8. The multi-slope ejector mechanism for the plastic storage box injection mold according to claim 7, characterized in that: A horizontal plate alignment insert (14) is provided in the lower injection mold (1), and the first connecting horizontal plate (12) and the second connecting horizontal plate (13) are respectively engaged with the horizontal plate alignment insert (14).

9. The multi-slope ejector mechanism for the plastic storage box injection mold according to claim 8, characterized in that: The wall auxiliary forming connecting block (9) is provided with two aligning vertical strips (15) on one side away from the plastic storage box forming slide plate (2).

10. The multi-slope ejector mechanism for the plastic storage box injection mold according to claim 9, characterized in that: Two adjacent alignment vertical strips (15) are parallel to each other.

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