Assembly type wardrobe injection mold cavity insert interchanging mechanism

Abstract

The utility model belongs to the technical field of molds, and relates to a cavity insert interchanging mechanism of an assembly type wardrobe injection mold. The utility model comprises a wardrobe frame forming lower die and a wardrobe frame forming upper die, and an injection molding shunting piece is arranged above the wardrobe frame forming upper die. After injection molding is completed, cooling water is introduced into the upper mold inner side cooling piece and the lower mold outer side cooling piece, the inner side and the outer side of a plastic part are cooled through the upper mold inner side cooling piece and the lower mold outer side cooling piece at the same time, the cooling area is large, cooling dead angles are reduced, then the mold is opened, the embedded direct-ejection anti-deviation demolding assembly is moved upwards, and the mold is not prone to falling off. A molded plastic part is synchronously ejected and demolded on the left side and the right side through the embedded direct-ejection anti-deviation demolding assembly, a symmetrical structure is adopted, the situation that the plastic part topples leftwards and rightwards during ejection is avoided, the ejection stability is improved, meanwhile, the embedded direct-ejection anti-deviation demolding assembly is in an embedded state during injection molding, extra in-mold space cannot be occupied, and the injection molding efficiency is improved. And the structure is compact and reasonable.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to an interchange mechanism for cavity inserts of an injection mold for an assembled wardrobe. Background Art

[0002] The frames of assembled wardrobes are now generally made of plastic materials and are generally injection-molded using injection molds. In the injection process of existing assembled wardrobe molds, due to the large width of the wardrobe frame, during the ejection and demolding process, the plastic parts are prone to tipping left and right, the ejection stability is relatively average, and the ejection structure will also additionally occupy a considerable part of the in-mold space, making the in-mold structure not compact. Therefore, there is an urgent need to design an interchange mechanism for cavity inserts of an injection mold for an assembled wardrobe 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 forming mold for preventing deformation of a panel of a assembled children's wardrobe [Application No.: 202221332586.8], which includes a lower mold for forming a wardrobe panel and an upper mold for forming a wardrobe panel. A lower convex frame for panel forming is provided on the lower mold for forming a wardrobe panel. In the injection process of the utility model, the lower mold for forming a wardrobe panel and the upper mold for forming a wardrobe panel are abutted and cooperated, so that the lower convex frame for panel forming and the upper groove for panel forming cooperate to form the main cavity of the plastic part. Summary of the Invention

[0004] The purpose of the utility model is to provide an interchange mechanism for cavity inserts of an injection mold for an assembled wardrobe in view of the above problems.

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

[0006] An interchange mechanism for cavity inserts of an injection mold for an assembled wardrobe includes a lower mold for forming a wardrobe frame and an upper mold for forming a wardrobe frame. An injection shunt part is provided above the upper mold for forming a wardrobe frame. A frame forming protrusion is provided in the lower mold for forming a wardrobe frame. A frame forming cavity is provided in the upper mold for forming a wardrobe frame. The positions of the frame forming protrusion and the frame forming cavity correspond to each other and the shapes are matched. An embedded direct ejection anti-deviation demolding component is provided in the frame forming protrusion. The embedded direct ejection anti-deviation demolding component is slidably matched with the frame forming protrusion. An inner cooling part of the upper mold is provided in the upper mold for forming a wardrobe frame. An outer cooling part of the lower mold is provided in the lower mold for forming a wardrobe frame. When the mold is closed, the inner cooling part of the upper mold and the outer cooling part of the lower mold are arranged in an alternating manner.

[0007] In the above interchange mechanism for cavity inserts of an injection mold for an assembled wardrobe, the embedded direct ejection anti-deviation demolding component includes a plurality of embedded ejection blocks provided in the frame forming protrusion, and the height of the embedded ejection blocks is flush with the frame forming protrusion.

[0008] In the above-mentioned interchange mechanism of the cavity inserts of the assembled wardrobe injection mold, a positioning portion is provided at the bottom of the embedded ejector block, and the positioning portion is engaged with the frame forming protrusion.

[0009] In the above-mentioned interchange mechanism of the cavity inserts of the assembled wardrobe injection mold, the positioning portion includes a positioning base provided at the bottom of the embedded ejector block, and the positioning base is engaged with the frame forming protrusion.

[0010] In the above-mentioned interchange mechanism of the cavity inserts of the assembled wardrobe injection mold, the cross-sectional area of the positioning base is smaller than the cross-sectional area of the embedded ejector block.

[0011] In the above-mentioned interchange mechanism of the cavity inserts of the assembled wardrobe injection mold, two straight ejector rods are provided at the bottom of the positioning base, and the two straight ejector rods are parallel to each other.

[0012] In the above-mentioned interchange mechanism of the cavity inserts of the assembled wardrobe injection mold, the straight ejector rods penetrate through the lower mold for forming the wardrobe frame. A plurality of lower parts for forming the shaft body are provided in the frame forming protrusion, and a plurality of upper parts for forming the shaft body are provided in the frame forming cavity. The positions of the lower parts for forming the shaft body and the upper parts for forming the shaft body correspond to each other and the shapes are matched.

[0013] In the above-mentioned interchange mechanism of the cavity inserts of the assembled wardrobe injection mold, the injection shunt member includes an injection shunt plate provided above the upper mold for forming the wardrobe frame.

[0014] In the above-mentioned interchange mechanism of the cavity inserts of the assembled wardrobe injection mold, the inner cooling member of the upper mold includes an upper mold cooling pipeline provided in the upper mold for forming the wardrobe frame. When the mold is closed, the upper mold cooling pipeline is located inside the frame forming protrusion.

[0015] In the above-mentioned interchange mechanism of the cavity inserts of the assembled wardrobe injection mold, the outer cooling member of the lower mold includes a lower mold outer cooling pipeline provided in the lower mold for forming the wardrobe frame. When the mold is closed, the lower mold outer cooling pipeline is located outside the frame forming protrusion.

[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, the lower mold for forming the wardrobe frame and the upper mold for forming the wardrobe frame are brought closer to each other, so that the frame forming protrusions are fitted with the frame forming cavities to form a complete cavity. The molten material is injected and branched through the injection branching part, which speeds up the injection rate. After the injection is completed, cooling water is introduced into the inner cooling part of the upper mold and the outer cooling part of the lower mold, and the inner and outer sides of the plastic part are cooled simultaneously by the inner cooling part of the upper mold and the outer cooling part of the lower mold. The cooling area is large, reducing the cooling dead angle. Then, the mold is opened, and the embedded direct top anti-deviation demolding assembly is moved upward. The formed plastic part is ejected and demolded synchronously on both the left and right sides through the embedded direct top anti-deviation demolding assembly. With a symmetrical structure, the situation of the plastic part tipping to the left or right during ejection is avoided, improving the stability of ejection. At the same time, the embedded direct top anti-deviation demolding assembly is in an embedded state during injection molding and does not occupy additional space inside the mold, achieving the purpose of a compact and reasonable structure.

[0018] 2. During the injection molding of the present utility model, the lower part of the shaft body forming and the upper part of the shaft body forming cooperate to synchronously form the shaft body connection structure of the plastic part, eliminating the need for secondary processing and shortening the process.

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

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

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

[0022] Figure 3 is a schematic structural diagram of the upper mold for forming the wardrobe frame.

[0023] Figure 4 is a schematic structural diagram of the embedded direct top anti-deviation demolding assembly.

[0024] In the figure: lower mold for forming the wardrobe frame 1, upper mold for forming the wardrobe frame 2, injection branching part 3, frame forming protrusion 4, frame forming cavity 5, embedded direct top anti-deviation demolding assembly 6, inner cooling part of the upper mold 7, outer cooling part of the lower mold 8, embedded ejection block 9, alignment part 10, alignment base 11, direct ejector rod 12, lower part of the shaft body forming 13, upper part of the shaft body forming 14, injection branching plate 15, upper mold cooling pipeline 16, outer cooling pipeline of the lower mold 17. DETAILED DESCRIPTION OF THE EMBODIMENTS

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

[0026] As Figures 1-4As shown in the figure, an interchange mechanism for cavity inserts of an assembled wardrobe injection mold includes a lower mold 1 for forming the wardrobe frame and an upper mold 2 for forming the wardrobe frame. An injection flow splitter 3 is provided above the upper mold 2 for forming the wardrobe frame. A frame forming protrusion 4 is provided inside the lower mold 1 for forming the wardrobe frame. A frame forming cavity 5 is provided inside the upper mold 2 for forming the wardrobe frame. The position of the frame forming protrusion 4 corresponds to that of the frame forming cavity 5 and their shapes are matched. An embedded direct top anti-deviation demolding component 6 is provided inside the frame forming protrusion 4. The embedded direct top anti-deviation demolding component 6 is slidably matched with the frame forming protrusion 4. An inner upper mold cooling component 7 is provided inside the upper mold 2 for forming the wardrobe frame. An outer lower mold cooling component 8 is provided inside the lower mold 1 for forming the wardrobe frame. When the mold is closed, the inner upper mold cooling component 7 and the outer lower mold cooling component 8 are arranged alternately.

[0027] In this embodiment, during the injection molding process, the lower mold 1 for forming the wardrobe frame and the upper mold 2 for forming the wardrobe frame are moved closer to each other, so that the frame forming protrusion 4 and the frame forming cavity 5 are fitted together to form a complete cavity. The molten material is injected and split through the injection flow splitter 3 to accelerate the injection rate. After the injection is completed, cooling water is introduced into the inner upper mold cooling component 7 and the outer lower mold cooling component 8. The inner and outer sides of the plastic part are cooled simultaneously by the inner upper mold cooling component 7 and the outer lower mold cooling component 8. The cooling area is large and the cooling dead angle is reduced. Then the mold is opened, and the embedded direct top anti-deviation demolding component 6 is moved upward. The formed plastic part is ejected and demolded synchronously on the left and right sides by the embedded direct top anti-deviation demolding component 6. A symmetrical structure is adopted to avoid the situation that the plastic part topples left and right during ejection, improving the stability of ejection. At the same time, the embedded direct top anti-deviation demolding component 6 is in an embedded state during injection molding and does not occupy additional space inside the mold, achieving the purpose of compact and reasonable structure.

[0028] Combined with Figures 1-4 As shown in the figure, the embedded direct top anti-deviation demolding component 6 includes a number of embedded ejector blocks 9 provided inside the frame forming protrusion 4. The height of the embedded ejector blocks 9 is flush with that of the frame forming protrusion 4.

[0029] Specifically, during the injection molding process, the height of the embedded ejector blocks 9 is flush with that of the frame forming protrusion 4 to assist in forming the plastic part. After the injection is completed and the mold is opened, the embedded ejector blocks 9 are moved upward. The formed plastic part is ejected and demolded synchronously on the left and right sides by the embedded ejector blocks 9. A symmetrical structure is adopted to avoid the situation that the plastic part topples left and right during ejection, improving the stability of ejection. At the same time, the embedded ejector blocks 9 are in an embedded state during injection molding and do not occupy additional space inside the mold, achieving the purpose of compact and reasonable structure.

[0030] Combined with Figure 2 、 Figure 4 As shown in the figure, a positioning portion 10 is provided at the bottom of the embedded ejector block 9. The positioning portion 10 is engaged and matched with the frame forming protrusion 4.

[0031] In this embodiment, during injection molding, the alignment part 10 is engaged with the frame forming protrusion 4, with high alignment accuracy, avoiding the shaking of the frame forming protrusion 4 and having strong stability.

[0032] The alignment part 10 includes an alignment base 11 provided at the bottom of the embedded ejector block 9, and the alignment base 11 is engaged with the frame forming protrusion 4.

[0033] In this embodiment, during injection molding, the alignment part 10 is engaged with the frame forming protrusion 4, with high alignment accuracy, avoiding the shaking of the frame forming protrusion 4 and having strong stability.

[0034] Combined with Figure 4 As shown, the cross-sectional area of the alignment base 11 is smaller than that of the embedded ejector block 9.

[0035] In this embodiment, the cross-sectional area of the alignment base 11 is smaller than that of the embedded ejector block 9, avoiding jamming during the moving process.

[0036] Two straight ejector rods 12 are provided at the bottom of the alignment base 11, and the two straight ejector rods 12 are parallel to each other.

[0037] In this embodiment, during ejection and demolding, the straight ejector rods 12 are moved to drive the alignment base 11 and the embedded ejector block 9 to move upward.

[0038] The straight ejector rods 12 penetrate through the lower die 1 for forming the wardrobe frame, several shaft forming lower parts 13 are provided in the frame forming protrusion 4, several shaft forming upper parts 14 are provided in the frame forming cavity 5, and the positions of the shaft forming lower parts 13 and the shaft forming upper parts 14 correspond to each other and their shapes are adapted to each other.

[0039] In this embodiment, during the injection molding process, the shaft forming lower parts 13 and the shaft forming upper parts 14 cooperate to synchronously form the shaft connection structure of the plastic part, eliminating the need for secondary processing and shortening the process.

[0040] Combined with Figure 1 As shown, the injection molding shunt part 3 includes an injection molding shunt plate 15 provided above the upper die 2 for forming the wardrobe frame.

[0041] In this embodiment, during injection molding, the molten material is injected into the cavity through the injection molding shunt plate 15, accelerating the injection molding rate.

[0042] Combined with Figure 1 、 Figure 2As shown in the figure, the upper die inner cooling member 7 includes an upper die cooling pipeline 16 disposed within the wardrobe frame forming upper die 2. When the die is closed, the upper die cooling pipeline 16 is located inside the frame forming protrusion 4. The lower die outer cooling member 8 includes a lower die outer cooling pipeline 17 disposed within the wardrobe frame forming lower die 1. When the die is closed, the lower die outer cooling pipeline 17 is located outside the frame forming protrusion 4.

[0043] In this embodiment, after injection molding, cooling water is introduced into the upper die cooling pipeline 16 and the lower die outer cooling pipeline 17. The inner and outer sides of the plastic part are simultaneously cooled through the upper die cooling pipeline 16 and the lower die outer cooling pipeline 17. The cooling area is large, and the cooling dead angle is reduced.

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

[0045] During the injection molding process, the wardrobe frame forming lower die 1 and the wardrobe frame forming upper die 2 are moved closer to each other, so that the frame forming protrusion 4 and the frame forming cavity 5 are fitted together to form a complete cavity. The molten material is injection-molded and branched through the injection molding splitter plate 15 to accelerate the injection molding rate. After injection molding, cooling water is introduced into the upper die cooling pipeline 16 and the lower die outer cooling pipeline 17. The inner and outer sides of the plastic part are simultaneously cooled through the upper die cooling pipeline 16 and the lower die outer cooling pipeline 17. The cooling area is large, and the cooling dead angle is reduced. Then, the die is opened, and the embedded ejector block 9 is moved upward. The molded plastic part is simultaneously ejected and demolded from the left and right sides through the embedded ejector block 9. The symmetrical structure is adopted to avoid the situation of the plastic part tipping left and right during ejection, improving the stability of ejection. At the same time, the embedded ejector block 9 is in an embedded state during injection molding and does not occupy additional space inside the die, achieving the purpose of a compact and reasonable structure.

[0046] During injection molding, the alignment part 10 is engaged and matched with the frame forming protrusion 4, with high alignment accuracy, avoiding the shaking of the frame forming protrusion 4 and having strong stability.

[0047] The cross-sectional area of the alignment base 11 is smaller than the cross-sectional area of the embedded ejector block 9, avoiding the situation of jamming during the moving process.

[0048] During ejection and demolding, the moving straight ejector rod 12 is moved to drive the alignment base 11 and the embedded ejector block 9 upward.

[0049] During the injection molding process, the lower part 13 of the shaft body forming and the upper part 14 of the shaft body forming cooperate to synchronously form the shaft body connection structure of the plastic part, eliminating the need for secondary processing and shortening the process.

[0050] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present utility model.

[0051] Although terms such as wardrobe frame forming lower die 1, wardrobe frame forming upper die 2, injection molding shunt part 3, frame forming protrusion 4, frame forming cavity 5, embedded direct top anti-deviation demolding assembly 6, upper die inner cooling part 7, lower die outer cooling part 8, embedded ejector block 9, alignment part 10, alignment base 11, direct top rod 12, shaft forming lower part 13, shaft forming upper part 14, injection molding shunt plate 15, upper die cooling pipeline 16, lower die outer cooling pipeline 17, etc. are used more frequently herein, the possibility of using other terms is not excluded. Using these terms is only for more conveniently describing and explaining the essence of the present utility model, and interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. An interchange mechanism for injection mold cavity inserts of an assembled wardrobe, comprising a lower mold (1) for forming a wardrobe frame and an upper mold (2) for forming a wardrobe frame, characterized in that, Above the upper die (2) for forming the wardrobe frame, there is an injection molding shunt part (3). Inside the lower die (1) for forming the wardrobe frame, there are frame forming protrusions (4). Inside the upper die (2) for forming the wardrobe frame, there is a frame forming cavity (5). The positions of the frame forming protrusions (4) and the frame forming cavity (5) correspond to each other and their shapes are adapted to each other. Inside the frame forming protrusions (4), there is an embedded direct ejection anti-deviation demolding component (6). The embedded direct ejection anti-deviation demolding component (6) is slidably engaged with the frame forming protrusions (4). Inside the upper die (2) for forming the wardrobe frame, there is an inner upper die cooling part (7). Inside the lower die (1) for forming the wardrobe frame, there is an outer lower die cooling part (8). When the die is closed, the inner upper die cooling part (7) and the outer lower die cooling part (8) are arranged alternately.

2. The interchange mechanism of the injection mold cavity inserts of the assembled wardrobe according to claim 1, characterized in that, The embedded direct ejection anti-deviation demolding component (6) includes a number of embedded ejector blocks (9) arranged inside the frame forming protrusions (4). The height of the embedded ejector blocks (9) is flush with the frame forming protrusions (4).

3. The interchange mechanism of the cavity inserts of the assembled wardrobe injection mold according to claim 2, characterized in that, At the bottom of the embedded ejector block (9), there is a positioning part (10). The positioning part (10) is snap-fitted with the frame forming protrusions (4).

4. The interchange mechanism of the injection mold cavity inserts for the assembled wardrobe according to claim 3, characterized in that, The positioning part (10) includes a positioning base (11) arranged at the bottom of the embedded ejector block (9). The positioning base (11) is snap-fitted with the frame forming protrusions (4).

5. The interchange mechanism of the injection mold cavity inserts for the assembled wardrobe according to claim 4, characterized in that, The cross-sectional area of the positioning base (11) is smaller than the cross-sectional area of the embedded ejector block (9).

6. The interchange mechanism of the injection mold cavity inserts of the assembled wardrobe according to claim 5, characterized in that, At the bottom of the positioning base (11), there are two direct ejector rods (12). The two direct ejector rods (12) are parallel to each other.

7. The interchange mechanism of the injection mold cavity inserts for the assembled wardrobe according to claim 6, characterized in that, The direct ejector rods (12) penetrate through the lower die (1) for forming the wardrobe frame. Inside the frame forming protrusions (4), there are a number of lower parts (13) for forming the shaft body. Inside the frame forming cavity (5), there are a number of upper parts (14) for forming the shaft body. The positions of the lower parts (13) for forming the shaft body and the upper parts (14) for forming the shaft body correspond to each other and their shapes are adapted to each other.

8. The interchange mechanism for cavity inserts of the assembled wardrobe injection mold according to claim 7, characterized in that, The injection molding shunt part (3) includes an injection molding shunt plate (15) arranged above the upper die (2) for forming the wardrobe frame.

9. The interchange mechanism of injection mold cavities inserts of the assembled wardrobe according to claim 8, characterized in that The inner upper die cooling part (7) includes an inner upper die cooling pipeline (16) arranged inside the upper die (2) for forming the wardrobe frame. When the die is closed, the inner upper die cooling pipeline (16) is located inside the frame forming protrusions (4).

10. The interchange mechanism of the injection mold cavity inserts for the assembled wardrobe according to claim 9, characterized in that, The outer lower die cooling part (8) includes an outer lower die cooling pipeline (17) arranged inside the lower die (1) for forming the wardrobe frame. When the die is closed, the outer lower die cooling pipeline (17) is located outside the frame forming protrusions (4).

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