Symmetrical ejection mechanism of plastic wardrobe frame injection mold

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a symmetrical ejection mechanism of a plastic wardrobe frame injection mold. The plastic wardrobe frame forming die comprises a plastic wardrobe frame forming lower die and a plastic wardrobe frame forming upper die. In the injection molding process, the symmetrical ejection mechanism is located at the ejection notch and matched with the wardrobe frame forming protrusion, molten materials are subjected to injection molding and flow dividing through the injection molding flow dividing piece, the symmetrical ejection mechanism is matched with the wardrobe frame forming protrusion so that a middle rib plate structure of a plastic piece can be synchronously formed, and mold opening is conducted after injection molding is completed; the symmetrical ejection mechanism is moved upwards, the formed plastic part is subjected to symmetrical inclined ejection through the symmetrical ejection mechanism, and an inclined ejection demolding structure is adopted, so that a formed rib plate structure can be prevented from being damaged, and the overall quality and completeness of the plastic part are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a symmetrical ejection mechanism of an injection mold for a plastic wardrobe frame. Background Art

[0002] Wardrobes are used to store clothing. Low-cost prefabricated wardrobes are typically made of plastic. The plastic wardrobe frame is typically molded in one piece using an injection mold. However, since prefabricated wardrobe frames require ribs for connection and fixation during installation, current injection molds that attempt to integrally mold the wardrobe frame and ribs are susceptible to damage during ejection, impacting the overall quality and integrity of the molded part. Therefore, a symmetrical ejection mechanism for plastic wardrobe frame injection molds is urgently needed to overcome these limitations.

[0003] In order to overcome the shortcomings of the existing technology, people have proposed various solutions through continuous exploration. For example, a Chinese patent discloses a long slider side core pulling structure for a combination wardrobe injection mold [application number: 202021934601.7], which includes an upper mold and a lower mold. The lower mold is provided with a plurality of side drive fixing plates symmetrical along the center line of the lower mold, and the lower mold is provided with a plurality of core pulling grooves symmetrical along the center line of the lower mold. The lower mold is provided with a plurality of side long slider core pulling assemblies that can perform reciprocating linear motion close to or away from one end of the core pulling groove. The side drive fixing plate is provided with a side drive member, and the side drive member is connected to the side long slider core pulling assembly. The lower mold is also provided with a plurality of core pulling anti-deflection abutments symmetrical along the center line of the lower mold. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide a symmetrical ejection mechanism for a plastic wardrobe frame injection mold.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A symmetrical ejection mechanism of a plastic wardrobe frame injection mold includes a plastic wardrobe frame molding lower mold and a plastic wardrobe frame molding upper mold, an injection molding diverter is provided above the plastic wardrobe frame molding upper mold, a wardrobe frame molding protrusion is provided in the plastic wardrobe frame molding lower mold, a wardrobe frame molding cavity is provided in the plastic wardrobe frame molding upper mold, the wardrobe frame molding protrusion corresponds to the wardrobe frame molding cavity in position and matches the shape, the wardrobe frame molding protrusion has two ejection notches symmetrical along the center line of the plastic wardrobe frame molding lower mold, a symmetrical ejection mechanism is provided in the ejection notch and slides with the wardrobe frame molding protrusion, and the symmetrical ejection mechanism is arranged opposite to the wardrobe frame molding cavity.

[0007] In the above-mentioned symmetrical ejection mechanism of the plastic wardrobe frame injection mold, the symmetrical ejection mechanism includes an embedded top plate arranged in the ejection notch, one side of the embedded top plate has an inclined surface, the inclined surface of the embedded top plate matches the inclined surface of the wardrobe frame forming protrusion, and the other side of the embedded top plate has a rib forming portion.

[0008] In the above-mentioned symmetrical ejection mechanism of the plastic wardrobe frame injection mold, the rib plate forming part includes a bottom side recessed surface and a top side recessed surface arranged on the side of the embedded top plate away from the inclined surface, and a rib plate forming space is formed between the bottom side recessed surface, the top side recessed surface and the side surface of the embedded top plate and the wardrobe frame forming protrusion.

[0009] In the symmetrical ejection mechanism of the above-mentioned plastic wardrobe frame injection mold, an inclined top connector is provided at the bottom of the embedded top plate, and the inclined top connector passes through the plastic wardrobe frame molding lower mold and slides with the plastic wardrobe frame molding lower mold.

[0010] In the above-mentioned symmetrical ejection mechanism of the plastic wardrobe frame injection mold, the inclined top connecting member includes an inclined top connecting rod arranged at the bottom of the embedded top plate, the inclined top connecting rod is arranged at an angle, and the width of the inclined top connecting rod is smaller than the width of the embedded top plate.

[0011] In the symmetrical ejection mechanism of the above-mentioned plastic wardrobe frame injection mold, an ejection connecting slide is provided under the plastic wardrobe frame molding lower mold, two limit slides are provided in the ejection connecting slide, and a limit block is provided at the bottom of the inclined ejection connecting rod that extends into the limit slide, and the limit block is slidably matched with the limit slide.

[0012] In the above-mentioned symmetrical ejection mechanism of the plastic wardrobe frame injection mold, a base plate is provided below the ejection connecting slide, and two anti-deflection irons are provided on the base plate which are symmetrical along the center line of the base plate. The ejection connecting slide plate and the anti-deflection irons are slidably matched.

[0013] In the symmetrical ejection mechanism of the above-mentioned plastic wardrobe frame injection mold, a rotating shaft buckle molding lower part is provided in the wardrobe frame molding protrusion, and a rotating shaft buckle molding upper part is provided in the wardrobe frame molding cavity, and the rotating shaft buckle molding lower part is arranged opposite to the rotating shaft buckle molding upper part.

[0014] In the symmetrical ejection mechanism of the above-mentioned plastic wardrobe frame injection mold, the lower mold for forming the plastic wardrobe frame has a mold closing cavity, and the upper mold for forming the plastic wardrobe frame has a mold closing protrusion, and the mold closing cavity and the mold closing protrusion are snap-fitted.

[0015] In the symmetrical ejection mechanism of the above-mentioned plastic wardrobe frame injection mold, the injection diverter includes an injection main board arranged above the plastic wardrobe frame molding upper mold, and a diverter plate is provided between the injection main board and the plastic wardrobe frame molding upper mold.

[0016] Compared with the existing technology, the advantages of this utility model are:

[0017] 1. During the injection molding process, the utility model brings the plastic wardrobe frame molding lower mold and the plastic wardrobe frame molding upper mold close to each other, so that the wardrobe frame molding protrusion and the wardrobe frame molding cavity are abutted and matched to form a complete cavity. During the injection molding process, the symmetrical ejector mechanism is located at the ejection notch and cooperates with the wardrobe frame molding protrusion. The molten material is injection-diverted through the injection molding diverter. The symmetrical ejector mechanism cooperates with the wardrobe frame molding protrusion to synchronously mold the middle rib structure of the plastic part. After the injection molding is completed, the mold is opened and the symmetrical ejector mechanism is moved upward. The molded plastic part is symmetrically obliquely ejected by the symmetrical ejector mechanism. The oblique ejection demoulding structure can avoid damage to the molded rib structure and ensure the overall quality and integrity of the plastic part.

[0018] 2. In the injection molding process of the utility model, the lower part of the rotating shaft buckle and the upper part of the rotating shaft buckle cooperate to simultaneously mold the rotating shaft buckle structure of the plastic part, without the need for secondary processing, thus shortening the process.

[0019] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0024] Figure 5 It is a structural diagram of the upper mold for forming a plastic wardrobe frame.

[0025] In the figure: plastic wardrobe frame molding lower mold 1, plastic wardrobe frame molding upper mold 2, injection molding diverter 3, wardrobe frame molding protrusion 4, wardrobe frame molding cavity 5, ejection notch 6, symmetrical ejection mechanism 7, embedded top plate 8, rib plate molding part 9, bottom side recessed surface 10, top side recessed surface 11, inclined top connecting piece 12, inclined top connecting rod 13, ejection connecting slide 14, limit slide 15, limit block 16, base plate 17, anti-deflection inch iron 18, shaft buckle molding lower part 19, shaft buckle molding upper part 20, mold closing cavity 21, mold closing protrusion 22, injection molding main board 23, diverter plate 24. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] like Figure 1-5 As shown, a symmetrical ejection mechanism of a plastic wardrobe frame injection mold includes a plastic wardrobe frame molding lower mold 1 and a plastic wardrobe frame molding upper mold 2, an injection molding diverter 3 is provided above the plastic wardrobe frame molding upper mold 2, a wardrobe frame molding protrusion 4 is provided in the plastic wardrobe frame molding lower mold 1, and a wardrobe frame molding cavity 5 is provided in the plastic wardrobe frame molding upper mold 2. The wardrobe frame molding protrusion 4 corresponds to the position of the wardrobe frame molding cavity 5 and the shape is matched. The wardrobe frame molding protrusion 4 has two ejection notches 6 symmetrical along the center line of the plastic wardrobe frame molding lower mold 1, and a symmetrical ejection mechanism 7 slidingly matched with the wardrobe frame molding protrusion 4 is provided in the ejection notch 6. The symmetrical ejection mechanism 7 is arranged opposite to the wardrobe frame molding cavity 5.

[0028] In this embodiment, during the injection molding process, the plastic wardrobe frame molding lower mold 1 and the plastic wardrobe frame molding upper mold 2 are brought close to each other, so that the wardrobe frame molding protrusion 4 and the wardrobe frame molding cavity 5 are abutted and matched to form a complete cavity. During the injection molding process, the symmetrical ejection mechanism 7 is located at the ejection notch 6 and cooperates with the wardrobe frame molding protrusion 4. The molten material is injection-diverted through the injection molding diverter 3. The symmetrical ejection mechanism 7 cooperates with the wardrobe frame molding protrusion 4 to synchronously mold the middle rib structure of the plastic part. After the injection molding is completed, the mold is opened and the symmetrical ejection mechanism 7 is moved upward. The molded plastic part is symmetrically ejected by the symmetrical ejection mechanism 7. The inclined ejection demolding structure can avoid damage to the molded rib structure and ensure the overall quality and integrity of the plastic part.

[0029] Combine Figure 1-5 As shown, the symmetrical ejection mechanism 7 includes an embedded top plate 8 arranged in the ejection notch 6, and the embedded top plate 8 has an inclined surface on one side, and the inclined surface of the embedded top plate 8 matches the inclined surface of the wardrobe frame forming protrusion 4, and the other side of the embedded top plate 8 has a rib forming part 9.

[0030] Specifically, during the injection molding process, the inclined surface of the embedded top plate 8 fits with the inclined surface of the wardrobe frame molding protrusion 4, and the rib forming portion 9 cooperates with the wardrobe frame molding protrusion 4 to synchronously form the middle rib structure of the plastic part.

[0031] The rib forming portion 9 includes a bottom recessed surface 10 and a top recessed surface 11 arranged on the side of the embedded top plate 8 away from the inclined surface, and a rib forming space is formed between the bottom recessed surface 10, the top recessed surface 11 and the side surface of the embedded top plate 8 and the wardrobe frame forming protrusion 4.

[0032] In this embodiment, during the injection molding process, the inclined surface of the embedded top plate 8 fits into the inclined surface of the wardrobe frame forming protrusion 4, and a rib forming space is formed between the bottom concave surface 10, the top concave surface 11 and the side surface of the embedded top plate 8 and the wardrobe frame forming protrusion 4, which can synchronously form the middle rib structure of the plastic part.

[0033] Combine Figure 3 、 Figure 4 As shown, an inclined top connector 12 is provided at the bottom of the embedded top plate 8 , and the inclined top connector 12 passes through the plastic wardrobe frame molding lower mold 1 and is slidably matched with the plastic wardrobe frame molding lower mold 1 .

[0034] In this embodiment, the mold is opened after the injection molding is completed, and the inclined top connecting member 12 is moved. The inclined top connecting member 12 drives the embedded top plate 8 to move synchronously, and the molded plastic part is symmetrically inclined and ejected by the embedded top plate 8. The inclined top demolding structure can avoid damage to the molded rib plate structure and ensure the overall quality and integrity of the plastic part.

[0035] The inclined top connecting member 12 includes an inclined top connecting rod 13 provided at the bottom of the embedded top plate 8 . The inclined top connecting rod 13 is provided at an angle, and the width of the inclined top connecting rod 13 is smaller than the width of the embedded top plate 8 .

[0036] In this embodiment, after the injection molding is completed, the mold is opened, the inclined top connecting rod 13 is moved, and the embedded top plate 8 is driven to move synchronously by the inclined top connecting rod 13. The molded plastic part is symmetrically inclined and ejected by the embedded top plate 8. The inclined top demolding structure can avoid damage to the molded rib structure and ensure the overall quality and integrity of the plastic part. The width of the inclined top connecting rod 13 is smaller than the width of the embedded top plate 8, and there will be no interference between ejection and injection molding.

[0037] Combine Figure 4 As shown, an ejection connecting slide 14 is provided under the plastic wardrobe frame molding lower mold 1, and two limit slides 15 are provided in the ejection connecting slide 14. The bottom of the inclined ejection connecting rod 13 is provided with a limit block 16 extending into the limit slide 15, and the limit block 16 is slidably matched with the limit slide 15.

[0038] In this embodiment, when the inclined top connecting rod 13 needs to be moved, the ejection connecting slide 14 is moved upward, and the inclined top connecting rod 13 and the embedded top plate 8 are driven to be inclined and demolded through the sliding cooperation between the limit block 16 and the limit slide 15.

[0039] A base plate 17 is provided below the ejection connection slide plate 14 , and two anti-deflection irons 18 are provided on the base plate 17 symmetrically along the center line of the base plate 17 . The ejection connection slide plate 14 and the anti-deflection irons 18 are in sliding cooperation.

[0040] In this embodiment, during the movement of the ejection connecting slide 14, the sliding cooperation between the ejection connecting slide 14 and the anti-deflection iron 18 plays a limiting role on the ejection connecting slide 14, thereby improving the accuracy of ejection.

[0041] Combine Figure 1-5 As shown, a rotating shaft buckle forming lower portion 19 is provided in the wardrobe frame forming protrusion 4, and a rotating shaft buckle forming upper portion 20 is provided in the wardrobe frame forming cavity 5, and the rotating shaft buckle forming lower portion 19 and the rotating shaft buckle forming upper portion 20 are arranged opposite to each other.

[0042] In this embodiment, during the injection molding process, the shaft buckle molding lower portion 19 and the shaft buckle molding upper portion 20 cooperate to simultaneously mold the shaft buckle structure of the plastic part, eliminating the need for secondary processing and shortening the process.

[0043] Combine Figure 1-5 As shown, the lower mold 1 for forming the plastic wardrobe frame has a mold cavity 21 therein, and the upper mold 2 for forming the plastic wardrobe frame has a mold protrusion 22 therein, and the mold cavity 21 and the mold protrusion 22 are snap-fitted together.

[0044] In this embodiment, when the mold is closed, the mold cavity 21 and the mold protrusion 22 are engaged with each other to ensure sealing inside the mold and prevent leakage.

[0045] Combine Figure 1-2 As shown, the injection molding diverter 3 includes an injection molding main board 23 arranged above the plastic wardrobe frame molding upper mold 2, and a diverter plate 24 is provided between the injection molding main board 23 and the plastic wardrobe frame molding upper mold 2.

[0046] In this embodiment, during the injection molding process, the molten material is injected through the injection molding main board 23, and then diverted by the diverter plate 24 and injected into the mold cavity.

[0047] The working principle of this utility model is:

[0048] During the injection molding process, the plastic wardrobe frame molding lower mold 1 and the plastic wardrobe frame molding upper mold 2 are brought close to each other, so that the wardrobe frame molding protrusion 4 and the wardrobe frame molding cavity 5 are abutted and matched to form a complete cavity. During the injection molding process, the inclined surface of the embedded top plate 8 is fitted with the inclined surface of the wardrobe frame molding protrusion 4, and the rib plate molding space is formed between the bottom side concave surface 10, the top side concave surface 11 and the side of the embedded top plate 8 and the wardrobe frame molding protrusion 4, which can synchronously mold the middle rib plate structure of the plastic part. The molten material is injected into the mold. The main board 23 is injected, and then diverted by the diverter plate 24 and injected into the cavity. After the injection molding is completed, the mold is opened and the inclined top connecting rod 13 is moved. The inclined top connecting rod 13 drives the embedded top plate 8 to move synchronously. The molded plastic part is symmetrically inclined and ejected by the embedded top plate 8. The inclined top demoulding structure can avoid damage to the molded rib structure and ensure the overall quality and integrity of the plastic part. The width of the inclined top connecting rod 13 is smaller than that of the embedded top plate 8, so there is no interference between ejection and injection molding.

[0049] When it is necessary to move the inclined ejector connecting rod 13, the ejection connecting slide 14 is moved upward, and the inclined ejector connecting rod 13 and the embedded ejector plate 8 are driven to perform inclined ejection through the sliding cooperation between the limit block 16 and the limit slide 15.

[0050] During the movement of the ejection connecting slide 14, the sliding cooperation between the ejection connecting slide 14 and the anti-deflection iron 18 plays a limiting role on the ejection connecting slide 14, thereby improving the accuracy of ejection.

[0051] During the injection molding process, the shaft buckle molding lower part 19 and the shaft buckle molding upper part 20 cooperate to simultaneously mold the shaft buckle structure of the plastic part, without the need for secondary processing, thus shortening the process.

[0052] When the mold is closed, the mold cavity 21 and the mold protrusion 22 are engaged with each other to ensure the sealing inside the mold and prevent leakage.

[0053] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described, or replace them with similar methods, without departing from the spirit of the present invention.

[0054] Although this article frequently uses terms such as plastic wardrobe frame molding lower mold 1, plastic wardrobe frame molding upper mold 2, injection molding diverter 3, wardrobe frame molding protrusion 4, wardrobe frame molding cavity 5, ejection notch 6, symmetrical ejection mechanism 7, embedded top plate 8, rib plate molding portion 9, bottom side recessed surface 10, top side recessed surface 11, inclined top connecting member 12, inclined top connecting rod 13, ejection connecting slide 14, limiting slide 15, limiting block 16, base plate 17, anti-deflection iron 18, shaft buckle molding lower portion 19, shaft buckle molding upper portion 20, mold closing cavity 21, mold closing protrusion 22, injection molding main plate 23, diverter plate 24, etc., it does not exclude the possibility of using other terms. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention. Interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A symmetrical ejection mechanism for a plastic wardrobe frame injection mold, comprising a lower mold (1) for molding a plastic wardrobe frame and an upper mold (2) for molding a plastic wardrobe frame, characterized in that: An injection molding diverter (3) is provided above the plastic wardrobe frame forming upper die (2), a wardrobe frame forming protrusion (4) is provided in the plastic wardrobe frame forming lower die (1), a wardrobe frame forming cavity (5) is provided in the plastic wardrobe frame forming upper die (2), the wardrobe frame forming protrusion (4) and the wardrobe frame forming cavity (5) correspond in position and have a shape that matches each other, the wardrobe frame forming protrusion (4) has two ejection notches (6) symmetrical along the center line of the plastic wardrobe frame forming lower die (1), a symmetrical ejection mechanism (7) that slides with the wardrobe frame forming protrusion (4) is provided in the ejection notch (6), and the symmetrical ejection mechanism (7) is arranged opposite to the wardrobe frame forming cavity (5).

2. The symmetrical ejection mechanism of the plastic wardrobe frame injection mold according to claim 1, characterized in that: The symmetrical ejection mechanism (7) comprises an embedded top plate (8) arranged in the ejection notch (6), one side of the embedded top plate (8) having an inclined surface, the inclined surface of the embedded top plate (8) being matched with the inclined surface of the wardrobe frame forming protrusion (4), and the other side of the embedded top plate (8) having a rib forming portion (9).

3. The symmetrical ejection mechanism of the plastic wardrobe frame injection mold according to claim 2, characterized in that: The rib forming portion (9) comprises a bottom recessed surface (10) and a top recessed surface (11) arranged on a side of the embedded top plate (8) away from the inclined surface, and a rib forming space is formed between the bottom recessed surface (10), the top recessed surface (11), the side surface of the embedded top plate (8) and the wardrobe frame forming protrusion (4).

4. The symmetrical ejection mechanism of the plastic wardrobe frame injection mold according to claim 3, characterized in that: The bottom of the embedded top plate (8) is provided with an inclined top connecting piece (12), and the inclined top connecting piece (12) passes through the plastic wardrobe frame forming lower mold (1) and is slidably matched with the plastic wardrobe frame forming lower mold (1).

5. The symmetrical ejection mechanism of the plastic wardrobe frame injection mold according to claim 4, characterized in that: The inclined top connecting member (12) comprises an inclined top connecting rod (13) arranged at the bottom of the embedded top plate (8), the inclined top connecting rod (13) being arranged in an inclined manner, and the width of the inclined top connecting rod (13) is smaller than the width of the embedded top plate (8).

6. The symmetrical ejection mechanism of the plastic wardrobe frame injection mold according to claim 5, characterized in that: An ejection connecting slide plate (14) is provided below the lower mold (1) for forming the plastic wardrobe frame. Two limiting slides (15) are provided inside the ejection connecting slide plate (14). A limiting block (16) extending into the limiting slides (15) is provided at the bottom of the inclined ejection connecting rod (13). The limiting block (16) is slidably matched with the limiting slides (15).

7. The symmetrical ejection mechanism of the plastic wardrobe frame injection mold according to claim 6, characterized in that: A base plate (17) is provided below the ejection connection slide plate (14), and two anti-deflection irons (18) symmetrically arranged along the center line of the base plate (17) are provided on the base plate (17). The ejection connection slide plate (14) and the anti-deflection irons (18) are in sliding cooperation.

8. The symmetrical ejection mechanism of the plastic wardrobe frame injection mold according to claim 7, characterized in that: A rotating shaft buckle forming lower part (19) is provided in the wardrobe frame forming protrusion (4), and a rotating shaft buckle forming upper part (20) is provided in the wardrobe frame forming cavity (5), and the rotating shaft buckle forming lower part (19) and the rotating shaft buckle forming upper part (20) are arranged opposite to each other.

9. The symmetrical ejection mechanism of the plastic wardrobe frame injection mold according to claim 8, characterized in that: The lower mold (1) for forming the plastic wardrobe frame has a mold closing cavity (21), and the upper mold (2) for forming the plastic wardrobe frame has a mold closing protrusion (22). The mold closing cavity (21) and the mold closing protrusion (22) are engaged with each other.

10. The symmetrical ejection mechanism of the plastic wardrobe frame injection mold according to claim 9, characterized in that: The injection molded flow diverter (3) comprises an injection molded main plate (23) arranged above the plastic wardrobe frame forming upper die (2), and a diverter plate (24) is provided between the injection molded main plate (23) and the plastic wardrobe frame forming upper die (2).

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